blob: 4feb9312a44745787aa7cd0763991f864c81c04f [file] [log] [blame]
dea31012005-04-17 16:05:31 -05001/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04003 * Fibre Channel Host Bus Adapters. *
James Smartf25e8e72015-04-07 15:07:28 -04004 * Copyright (C) 2004-2015 Emulex. All rights reserved. *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04005 * EMULEX and SLI are trademarks of Emulex. *
dea31012005-04-17 16:05:31 -05006 * www.emulex.com *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04007 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
dea31012005-04-17 16:05:31 -05008 * *
9 * This program is free software; you can redistribute it and/or *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -040010 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
dea31012005-04-17 16:05:31 -050020 *******************************************************************/
21
dea31012005-04-17 16:05:31 -050022#include <linux/blkdev.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25#include <linux/delay.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090026#include <linux/slab.h>
dea31012005-04-17 16:05:31 -050027
James.Smart@Emulex.Com91886522005-08-10 15:03:09 -040028#include <scsi/scsi.h>
dea31012005-04-17 16:05:31 -050029#include <scsi/scsi_cmnd.h>
30#include <scsi/scsi_device.h>
31#include <scsi/scsi_host.h>
James.Smart@Emulex.Comf888ba32005-08-10 15:03:01 -040032#include <scsi/scsi_transport_fc.h>
James Smartda0436e2009-05-22 14:51:39 -040033#include <scsi/fc/fc_fs.h>
James Smart0d878412009-10-02 15:16:56 -040034#include <linux/aer.h>
dea31012005-04-17 16:05:31 -050035
James Smartda0436e2009-05-22 14:51:39 -040036#include "lpfc_hw4.h"
dea31012005-04-17 16:05:31 -050037#include "lpfc_hw.h"
38#include "lpfc_sli.h"
James Smartda0436e2009-05-22 14:51:39 -040039#include "lpfc_sli4.h"
James Smartea2151b2008-09-07 11:52:10 -040040#include "lpfc_nl.h"
dea31012005-04-17 16:05:31 -050041#include "lpfc_disc.h"
42#include "lpfc_scsi.h"
43#include "lpfc.h"
44#include "lpfc_crtn.h"
45#include "lpfc_logmsg.h"
46#include "lpfc_compat.h"
James Smart858c9f62007-06-17 19:56:39 -050047#include "lpfc_debugfs.h"
James Smart04c68492009-05-22 14:52:52 -040048#include "lpfc_vport.h"
dea31012005-04-17 16:05:31 -050049
50/* There are only four IOCB completion types. */
51typedef enum _lpfc_iocb_type {
52 LPFC_UNKNOWN_IOCB,
53 LPFC_UNSOL_IOCB,
54 LPFC_SOL_IOCB,
55 LPFC_ABORT_IOCB
56} lpfc_iocb_type;
57
James Smart4f774512009-05-22 14:52:35 -040058
59/* Provide function prototypes local to this module. */
60static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
61 uint32_t);
62static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
James Smart45ed1192009-10-02 15:17:02 -040063 uint8_t *, uint32_t *);
64static struct lpfc_iocbq *lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *,
65 struct lpfc_iocbq *);
James Smart6669f9b2009-10-02 15:16:45 -040066static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *,
67 struct hbq_dmabuf *);
James Smart05580562011-05-24 11:40:48 -040068static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *, struct lpfc_queue *,
69 struct lpfc_cqe *);
James Smart8a9d2e82012-05-09 21:16:12 -040070static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
71 int);
James Smartba20c852012-08-03 12:36:52 -040072static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
73 uint32_t);
James Smarte8d3c3b2013-10-10 12:21:30 -040074static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
75static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
James Smart05580562011-05-24 11:40:48 -040076
James Smart4f774512009-05-22 14:52:35 -040077static IOCB_t *
78lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
79{
80 return &iocbq->iocb;
81}
82
83/**
84 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
85 * @q: The Work Queue to operate on.
86 * @wqe: The work Queue Entry to put on the Work queue.
87 *
88 * This routine will copy the contents of @wqe to the next available entry on
89 * the @q. This function will then ring the Work Queue Doorbell to signal the
90 * HBA to start processing the Work Queue Entry. This function returns 0 if
91 * successful. If no entries are available on @q then this function will return
92 * -ENOMEM.
93 * The caller is expected to hold the hbalock when calling this routine.
94 **/
95static uint32_t
96lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
97{
James Smart2e90f4b2011-12-13 13:22:37 -050098 union lpfc_wqe *temp_wqe;
James Smart4f774512009-05-22 14:52:35 -040099 struct lpfc_register doorbell;
100 uint32_t host_index;
James Smart027140e2012-08-03 12:35:44 -0400101 uint32_t idx;
James Smart4f774512009-05-22 14:52:35 -0400102
James Smart2e90f4b2011-12-13 13:22:37 -0500103 /* sanity check on queue memory */
104 if (unlikely(!q))
105 return -ENOMEM;
106 temp_wqe = q->qe[q->host_index].wqe;
107
James Smart4f774512009-05-22 14:52:35 -0400108 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400109 idx = ((q->host_index + 1) % q->entry_count);
110 if (idx == q->hba_index) {
James Smartb84daac2012-08-03 12:35:13 -0400111 q->WQ_overflow++;
James Smart4f774512009-05-22 14:52:35 -0400112 return -ENOMEM;
James Smartb84daac2012-08-03 12:35:13 -0400113 }
114 q->WQ_posted++;
James Smart4f774512009-05-22 14:52:35 -0400115 /* set consumption flag every once in a while */
James Smartff78d8f2011-12-13 13:21:35 -0500116 if (!((q->host_index + 1) % q->entry_repost))
James Smartf0d9bcc2010-10-22 11:07:09 -0400117 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
James Smartfedd3b72011-02-16 12:39:24 -0500118 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
119 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400120 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
121
122 /* Update the host index before invoking device */
123 host_index = q->host_index;
James Smart027140e2012-08-03 12:35:44 -0400124
125 q->host_index = idx;
James Smart4f774512009-05-22 14:52:35 -0400126
127 /* Ring Doorbell */
128 doorbell.word0 = 0;
James Smart962bc512013-01-03 15:44:00 -0500129 if (q->db_format == LPFC_DB_LIST_FORMAT) {
130 bf_set(lpfc_wq_db_list_fm_num_posted, &doorbell, 1);
131 bf_set(lpfc_wq_db_list_fm_index, &doorbell, host_index);
132 bf_set(lpfc_wq_db_list_fm_id, &doorbell, q->queue_id);
133 } else if (q->db_format == LPFC_DB_RING_FORMAT) {
134 bf_set(lpfc_wq_db_ring_fm_num_posted, &doorbell, 1);
135 bf_set(lpfc_wq_db_ring_fm_id, &doorbell, q->queue_id);
136 } else {
137 return -EINVAL;
138 }
139 writel(doorbell.word0, q->db_regaddr);
James Smart4f774512009-05-22 14:52:35 -0400140
141 return 0;
142}
143
144/**
145 * lpfc_sli4_wq_release - Updates internal hba index for WQ
146 * @q: The Work Queue to operate on.
147 * @index: The index to advance the hba index to.
148 *
149 * This routine will update the HBA index of a queue to reflect consumption of
150 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
151 * an entry the host calls this function to update the queue's internal
152 * pointers. This routine returns the number of entries that were consumed by
153 * the HBA.
154 **/
155static uint32_t
156lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
157{
158 uint32_t released = 0;
159
James Smart2e90f4b2011-12-13 13:22:37 -0500160 /* sanity check on queue memory */
161 if (unlikely(!q))
162 return 0;
163
James Smart4f774512009-05-22 14:52:35 -0400164 if (q->hba_index == index)
165 return 0;
166 do {
167 q->hba_index = ((q->hba_index + 1) % q->entry_count);
168 released++;
169 } while (q->hba_index != index);
170 return released;
171}
172
173/**
174 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
175 * @q: The Mailbox Queue to operate on.
176 * @wqe: The Mailbox Queue Entry to put on the Work queue.
177 *
178 * This routine will copy the contents of @mqe to the next available entry on
179 * the @q. This function will then ring the Work Queue Doorbell to signal the
180 * HBA to start processing the Work Queue Entry. This function returns 0 if
181 * successful. If no entries are available on @q then this function will return
182 * -ENOMEM.
183 * The caller is expected to hold the hbalock when calling this routine.
184 **/
185static uint32_t
186lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
187{
James Smart2e90f4b2011-12-13 13:22:37 -0500188 struct lpfc_mqe *temp_mqe;
James Smart4f774512009-05-22 14:52:35 -0400189 struct lpfc_register doorbell;
James Smart4f774512009-05-22 14:52:35 -0400190
James Smart2e90f4b2011-12-13 13:22:37 -0500191 /* sanity check on queue memory */
192 if (unlikely(!q))
193 return -ENOMEM;
194 temp_mqe = q->qe[q->host_index].mqe;
195
James Smart4f774512009-05-22 14:52:35 -0400196 /* If the host has not yet processed the next entry then we are done */
197 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
198 return -ENOMEM;
199 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
200 /* Save off the mailbox pointer for completion */
201 q->phba->mbox = (MAILBOX_t *)temp_mqe;
202
203 /* Update the host index before invoking device */
James Smart4f774512009-05-22 14:52:35 -0400204 q->host_index = ((q->host_index + 1) % q->entry_count);
205
206 /* Ring Doorbell */
207 doorbell.word0 = 0;
208 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
209 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
210 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400211 return 0;
212}
213
214/**
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
217 *
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
222 * the HBA.
223 **/
224static uint32_t
225lpfc_sli4_mq_release(struct lpfc_queue *q)
226{
James Smart2e90f4b2011-12-13 13:22:37 -0500227 /* sanity check on queue memory */
228 if (unlikely(!q))
229 return 0;
230
James Smart4f774512009-05-22 14:52:35 -0400231 /* Clear the mailbox pointer for completion */
232 q->phba->mbox = NULL;
233 q->hba_index = ((q->hba_index + 1) % q->entry_count);
234 return 1;
235}
236
237/**
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
240 *
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
245 **/
246static struct lpfc_eqe *
247lpfc_sli4_eq_get(struct lpfc_queue *q)
248{
James Smart2e90f4b2011-12-13 13:22:37 -0500249 struct lpfc_eqe *eqe;
James Smart027140e2012-08-03 12:35:44 -0400250 uint32_t idx;
James Smart2e90f4b2011-12-13 13:22:37 -0500251
252 /* sanity check on queue memory */
253 if (unlikely(!q))
254 return NULL;
255 eqe = q->qe[q->hba_index].eqe;
James Smart4f774512009-05-22 14:52:35 -0400256
257 /* If the next EQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400258 if (!bf_get_le32(lpfc_eqe_valid, eqe))
James Smart4f774512009-05-22 14:52:35 -0400259 return NULL;
260 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400261 idx = ((q->hba_index + 1) % q->entry_count);
262 if (idx == q->host_index)
James Smart4f774512009-05-22 14:52:35 -0400263 return NULL;
264
James Smart027140e2012-08-03 12:35:44 -0400265 q->hba_index = idx;
James Smart27f344e2014-05-07 17:16:46 -0400266
267 /*
268 * insert barrier for instruction interlock : data from the hardware
269 * must have the valid bit checked before it can be copied and acted
270 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
271 * instructions allowing action on content before valid bit checked,
272 * add barrier here as well. May not be needed as "content" is a
273 * single 32-bit entity here (vs multi word structure for cq's).
274 */
275 mb();
James Smart4f774512009-05-22 14:52:35 -0400276 return eqe;
277}
278
279/**
James Smartba20c852012-08-03 12:36:52 -0400280 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
281 * @q: The Event Queue to disable interrupts
282 *
283 **/
284static inline void
285lpfc_sli4_eq_clr_intr(struct lpfc_queue *q)
286{
287 struct lpfc_register doorbell;
288
289 doorbell.word0 = 0;
290 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
291 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
292 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
293 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
294 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
295 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
296}
297
298/**
James Smart4f774512009-05-22 14:52:35 -0400299 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
300 * @q: The Event Queue that the host has completed processing for.
301 * @arm: Indicates whether the host wants to arms this CQ.
302 *
303 * This routine will mark all Event Queue Entries on @q, from the last
304 * known completed entry to the last entry that was processed, as completed
305 * by clearing the valid bit for each completion queue entry. Then it will
306 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
307 * The internal host index in the @q will be updated by this routine to indicate
308 * that the host has finished processing the entries. The @arm parameter
309 * indicates that the queue should be rearmed when ringing the doorbell.
310 *
311 * This function will return the number of EQEs that were popped.
312 **/
313uint32_t
314lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
315{
316 uint32_t released = 0;
317 struct lpfc_eqe *temp_eqe;
318 struct lpfc_register doorbell;
319
James Smart2e90f4b2011-12-13 13:22:37 -0500320 /* sanity check on queue memory */
321 if (unlikely(!q))
322 return 0;
323
James Smart4f774512009-05-22 14:52:35 -0400324 /* while there are valid entries */
325 while (q->hba_index != q->host_index) {
326 temp_eqe = q->qe[q->host_index].eqe;
James Smartcb5172e2010-03-15 11:25:07 -0400327 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
James Smart4f774512009-05-22 14:52:35 -0400328 released++;
329 q->host_index = ((q->host_index + 1) % q->entry_count);
330 }
331 if (unlikely(released == 0 && !arm))
332 return 0;
333
334 /* ring doorbell for number popped */
335 doorbell.word0 = 0;
336 if (arm) {
337 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
338 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
339 }
340 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
341 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
James Smart6b5151f2012-01-18 16:24:06 -0500342 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
343 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
344 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400345 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500346 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
347 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
348 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400349 return released;
350}
351
352/**
353 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
354 * @q: The Completion Queue to get the first valid CQE from
355 *
356 * This routine will get the first valid Completion Queue Entry from @q, update
357 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
358 * the Queue (no more work to do), or the Queue is full of CQEs that have been
359 * processed, but not popped back to the HBA then this routine will return NULL.
360 **/
361static struct lpfc_cqe *
362lpfc_sli4_cq_get(struct lpfc_queue *q)
363{
364 struct lpfc_cqe *cqe;
James Smart027140e2012-08-03 12:35:44 -0400365 uint32_t idx;
James Smart4f774512009-05-22 14:52:35 -0400366
James Smart2e90f4b2011-12-13 13:22:37 -0500367 /* sanity check on queue memory */
368 if (unlikely(!q))
369 return NULL;
370
James Smart4f774512009-05-22 14:52:35 -0400371 /* If the next CQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400372 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
James Smart4f774512009-05-22 14:52:35 -0400373 return NULL;
374 /* If the host has not yet processed the next entry then we are done */
James Smart027140e2012-08-03 12:35:44 -0400375 idx = ((q->hba_index + 1) % q->entry_count);
376 if (idx == q->host_index)
James Smart4f774512009-05-22 14:52:35 -0400377 return NULL;
378
379 cqe = q->qe[q->hba_index].cqe;
James Smart027140e2012-08-03 12:35:44 -0400380 q->hba_index = idx;
James Smart27f344e2014-05-07 17:16:46 -0400381
382 /*
383 * insert barrier for instruction interlock : data from the hardware
384 * must have the valid bit checked before it can be copied and acted
385 * upon. Speculative instructions were allowing a bcopy at the start
386 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
387 * after our return, to copy data before the valid bit check above
388 * was done. As such, some of the copied data was stale. The barrier
389 * ensures the check is before any data is copied.
390 */
391 mb();
James Smart4f774512009-05-22 14:52:35 -0400392 return cqe;
393}
394
395/**
396 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
397 * @q: The Completion Queue that the host has completed processing for.
398 * @arm: Indicates whether the host wants to arms this CQ.
399 *
400 * This routine will mark all Completion queue entries on @q, from the last
401 * known completed entry to the last entry that was processed, as completed
402 * by clearing the valid bit for each completion queue entry. Then it will
403 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
404 * The internal host index in the @q will be updated by this routine to indicate
405 * that the host has finished processing the entries. The @arm parameter
406 * indicates that the queue should be rearmed when ringing the doorbell.
407 *
408 * This function will return the number of CQEs that were released.
409 **/
410uint32_t
411lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
412{
413 uint32_t released = 0;
414 struct lpfc_cqe *temp_qe;
415 struct lpfc_register doorbell;
416
James Smart2e90f4b2011-12-13 13:22:37 -0500417 /* sanity check on queue memory */
418 if (unlikely(!q))
419 return 0;
James Smart4f774512009-05-22 14:52:35 -0400420 /* while there are valid entries */
421 while (q->hba_index != q->host_index) {
422 temp_qe = q->qe[q->host_index].cqe;
James Smartcb5172e2010-03-15 11:25:07 -0400423 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
James Smart4f774512009-05-22 14:52:35 -0400424 released++;
425 q->host_index = ((q->host_index + 1) % q->entry_count);
426 }
427 if (unlikely(released == 0 && !arm))
428 return 0;
429
430 /* ring doorbell for number popped */
431 doorbell.word0 = 0;
432 if (arm)
433 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
434 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
435 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
James Smart6b5151f2012-01-18 16:24:06 -0500436 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
437 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
438 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400439 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
440 return released;
441}
442
443/**
444 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
445 * @q: The Header Receive Queue to operate on.
446 * @wqe: The Receive Queue Entry to put on the Receive queue.
447 *
448 * This routine will copy the contents of @wqe to the next available entry on
449 * the @q. This function will then ring the Receive Queue Doorbell to signal the
450 * HBA to start processing the Receive Queue Entry. This function returns the
451 * index that the rqe was copied to if successful. If no entries are available
452 * on @q then this function will return -ENOMEM.
453 * The caller is expected to hold the hbalock when calling this routine.
454 **/
455static int
456lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
457 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
458{
James Smart2e90f4b2011-12-13 13:22:37 -0500459 struct lpfc_rqe *temp_hrqe;
460 struct lpfc_rqe *temp_drqe;
James Smart4f774512009-05-22 14:52:35 -0400461 struct lpfc_register doorbell;
Wei Yongjun5a25bf32012-12-02 08:33:24 -0500462 int put_index;
James Smart4f774512009-05-22 14:52:35 -0400463
James Smart2e90f4b2011-12-13 13:22:37 -0500464 /* sanity check on queue memory */
465 if (unlikely(!hq) || unlikely(!dq))
466 return -ENOMEM;
Wei Yongjun5a25bf32012-12-02 08:33:24 -0500467 put_index = hq->host_index;
James Smart2e90f4b2011-12-13 13:22:37 -0500468 temp_hrqe = hq->qe[hq->host_index].rqe;
469 temp_drqe = dq->qe[dq->host_index].rqe;
470
James Smart4f774512009-05-22 14:52:35 -0400471 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
472 return -EINVAL;
473 if (hq->host_index != dq->host_index)
474 return -EINVAL;
475 /* If the host has not yet processed the next entry then we are done */
476 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
477 return -EBUSY;
478 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
479 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
480
481 /* Update the host index to point to the next slot */
482 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
483 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
484
485 /* Ring The Header Receive Queue Doorbell */
James Smart73d91e52011-10-10 21:32:10 -0400486 if (!(hq->host_index % hq->entry_repost)) {
James Smart4f774512009-05-22 14:52:35 -0400487 doorbell.word0 = 0;
James Smart962bc512013-01-03 15:44:00 -0500488 if (hq->db_format == LPFC_DB_RING_FORMAT) {
489 bf_set(lpfc_rq_db_ring_fm_num_posted, &doorbell,
490 hq->entry_repost);
491 bf_set(lpfc_rq_db_ring_fm_id, &doorbell, hq->queue_id);
492 } else if (hq->db_format == LPFC_DB_LIST_FORMAT) {
493 bf_set(lpfc_rq_db_list_fm_num_posted, &doorbell,
494 hq->entry_repost);
495 bf_set(lpfc_rq_db_list_fm_index, &doorbell,
496 hq->host_index);
497 bf_set(lpfc_rq_db_list_fm_id, &doorbell, hq->queue_id);
498 } else {
499 return -EINVAL;
500 }
501 writel(doorbell.word0, hq->db_regaddr);
James Smart4f774512009-05-22 14:52:35 -0400502 }
503 return put_index;
504}
505
506/**
507 * lpfc_sli4_rq_release - Updates internal hba index for RQ
508 * @q: The Header Receive Queue to operate on.
509 *
510 * This routine will update the HBA index of a queue to reflect consumption of
511 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
512 * consumed an entry the host calls this function to update the queue's
513 * internal pointers. This routine returns the number of entries that were
514 * consumed by the HBA.
515 **/
516static uint32_t
517lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
518{
James Smart2e90f4b2011-12-13 13:22:37 -0500519 /* sanity check on queue memory */
520 if (unlikely(!hq) || unlikely(!dq))
521 return 0;
522
James Smart4f774512009-05-22 14:52:35 -0400523 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
524 return 0;
525 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
526 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
527 return 1;
528}
529
James Smarte59058c2008-08-24 21:49:00 -0400530/**
James Smart3621a712009-04-06 18:47:14 -0400531 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400532 * @phba: Pointer to HBA context object.
533 * @pring: Pointer to driver SLI ring object.
534 *
535 * This function returns pointer to next command iocb entry
536 * in the command ring. The caller must hold hbalock to prevent
537 * other threads consume the next command iocb.
538 * SLI-2/SLI-3 provide different sized iocbs.
539 **/
James Smarted957682007-06-17 19:56:37 -0500540static inline IOCB_t *
541lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
542{
James Smart7e56aa22012-08-03 12:35:34 -0400543 return (IOCB_t *) (((char *) pring->sli.sli3.cmdringaddr) +
544 pring->sli.sli3.cmdidx * phba->iocb_cmd_size);
James Smarted957682007-06-17 19:56:37 -0500545}
546
James Smarte59058c2008-08-24 21:49:00 -0400547/**
James Smart3621a712009-04-06 18:47:14 -0400548 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400549 * @phba: Pointer to HBA context object.
550 * @pring: Pointer to driver SLI ring object.
551 *
552 * This function returns pointer to next response iocb entry
553 * in the response ring. The caller must hold hbalock to make sure
554 * that no other thread consume the next response iocb.
555 * SLI-2/SLI-3 provide different sized iocbs.
556 **/
James Smarted957682007-06-17 19:56:37 -0500557static inline IOCB_t *
558lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
559{
James Smart7e56aa22012-08-03 12:35:34 -0400560 return (IOCB_t *) (((char *) pring->sli.sli3.rspringaddr) +
561 pring->sli.sli3.rspidx * phba->iocb_rsp_size);
James Smarted957682007-06-17 19:56:37 -0500562}
563
James Smarte59058c2008-08-24 21:49:00 -0400564/**
James Smart3621a712009-04-06 18:47:14 -0400565 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400566 * @phba: Pointer to HBA context object.
567 *
568 * This function is called with hbalock held. This function
569 * allocates a new driver iocb object from the iocb pool. If the
570 * allocation is successful, it returns pointer to the newly
571 * allocated iocb object else it returns NULL.
572 **/
James Smart4f2e66c2012-05-09 21:17:07 -0400573struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -0500574__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400575{
576 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
577 struct lpfc_iocbq * iocbq = NULL;
578
579 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400580 if (iocbq)
581 phba->iocb_cnt++;
582 if (phba->iocb_cnt > phba->iocb_max)
583 phba->iocb_max = phba->iocb_cnt;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400584 return iocbq;
585}
586
James Smarte59058c2008-08-24 21:49:00 -0400587/**
James Smartda0436e2009-05-22 14:51:39 -0400588 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
589 * @phba: Pointer to HBA context object.
590 * @xritag: XRI value.
591 *
592 * This function clears the sglq pointer from the array of acive
593 * sglq's. The xritag that is passed in is used to index into the
594 * array. Before the xritag can be used it needs to be adjusted
595 * by subtracting the xribase.
596 *
597 * Returns sglq ponter = success, NULL = Failure.
598 **/
599static struct lpfc_sglq *
600__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
601{
James Smartda0436e2009-05-22 14:51:39 -0400602 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400603
604 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
605 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
James Smartda0436e2009-05-22 14:51:39 -0400606 return sglq;
607}
608
609/**
610 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
611 * @phba: Pointer to HBA context object.
612 * @xritag: XRI value.
613 *
614 * This function returns the sglq pointer from the array of acive
615 * sglq's. The xritag that is passed in is used to index into the
616 * array. Before the xritag can be used it needs to be adjusted
617 * by subtracting the xribase.
618 *
619 * Returns sglq ponter = success, NULL = Failure.
620 **/
James Smart0f65ff62010-02-26 14:14:23 -0500621struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400622__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
623{
James Smartda0436e2009-05-22 14:51:39 -0400624 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400625
626 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
James Smartda0436e2009-05-22 14:51:39 -0400627 return sglq;
628}
629
630/**
James Smart1151e3e2011-02-16 12:39:35 -0500631 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500632 * @phba: Pointer to HBA context object.
633 * @xritag: xri used in this exchange.
634 * @rrq: The RRQ to be cleared.
635 *
James Smart19ca7602010-11-20 23:11:55 -0500636 **/
James Smart1151e3e2011-02-16 12:39:35 -0500637void
638lpfc_clr_rrq_active(struct lpfc_hba *phba,
639 uint16_t xritag,
640 struct lpfc_node_rrq *rrq)
James Smart19ca7602010-11-20 23:11:55 -0500641{
James Smart1151e3e2011-02-16 12:39:35 -0500642 struct lpfc_nodelist *ndlp = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500643
James Smart1151e3e2011-02-16 12:39:35 -0500644 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
645 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
James Smart19ca7602010-11-20 23:11:55 -0500646
647 /* The target DID could have been swapped (cable swap)
648 * we should use the ndlp from the findnode if it is
649 * available.
650 */
James Smart1151e3e2011-02-16 12:39:35 -0500651 if ((!ndlp) && rrq->ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500652 ndlp = rrq->ndlp;
653
James Smart1151e3e2011-02-16 12:39:35 -0500654 if (!ndlp)
655 goto out;
656
James Smartcff261f2013-12-17 20:29:47 -0500657 if (test_and_clear_bit(xritag, ndlp->active_rrqs_xri_bitmap)) {
James Smart19ca7602010-11-20 23:11:55 -0500658 rrq->send_rrq = 0;
659 rrq->xritag = 0;
660 rrq->rrq_stop_time = 0;
661 }
James Smart1151e3e2011-02-16 12:39:35 -0500662out:
James Smart19ca7602010-11-20 23:11:55 -0500663 mempool_free(rrq, phba->rrq_pool);
664}
665
666/**
667 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
668 * @phba: Pointer to HBA context object.
669 *
670 * This function is called with hbalock held. This function
671 * Checks if stop_time (ratov from setting rrq active) has
672 * been reached, if it has and the send_rrq flag is set then
673 * it will call lpfc_send_rrq. If the send_rrq flag is not set
674 * then it will just call the routine to clear the rrq and
675 * free the rrq resource.
676 * The timer is set to the next rrq that is going to expire before
677 * leaving the routine.
678 *
679 **/
680void
681lpfc_handle_rrq_active(struct lpfc_hba *phba)
682{
683 struct lpfc_node_rrq *rrq;
684 struct lpfc_node_rrq *nextrrq;
685 unsigned long next_time;
686 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500687 LIST_HEAD(send_rrq);
James Smart19ca7602010-11-20 23:11:55 -0500688
689 spin_lock_irqsave(&phba->hbalock, iflags);
690 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
James Smart256ec0d2013-04-17 20:14:58 -0400691 next_time = jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
James Smart19ca7602010-11-20 23:11:55 -0500692 list_for_each_entry_safe(rrq, nextrrq,
James Smart1151e3e2011-02-16 12:39:35 -0500693 &phba->active_rrq_list, list) {
694 if (time_after(jiffies, rrq->rrq_stop_time))
695 list_move(&rrq->list, &send_rrq);
696 else if (time_before(rrq->rrq_stop_time, next_time))
James Smart19ca7602010-11-20 23:11:55 -0500697 next_time = rrq->rrq_stop_time;
698 }
699 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart06918ac2014-02-20 09:57:57 -0500700 if ((!list_empty(&phba->active_rrq_list)) &&
701 (!(phba->pport->load_flag & FC_UNLOADING)))
James Smart19ca7602010-11-20 23:11:55 -0500702 mod_timer(&phba->rrq_tmr, next_time);
James Smart1151e3e2011-02-16 12:39:35 -0500703 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
704 list_del(&rrq->list);
705 if (!rrq->send_rrq)
706 /* this call will free the rrq */
707 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
708 else if (lpfc_send_rrq(phba, rrq)) {
709 /* if we send the rrq then the completion handler
710 * will clear the bit in the xribitmap.
711 */
712 lpfc_clr_rrq_active(phba, rrq->xritag,
713 rrq);
714 }
715 }
James Smart19ca7602010-11-20 23:11:55 -0500716}
717
718/**
719 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
720 * @vport: Pointer to vport context object.
721 * @xri: The xri used in the exchange.
722 * @did: The targets DID for this exchange.
723 *
724 * returns NULL = rrq not found in the phba->active_rrq_list.
725 * rrq = rrq for this xri and target.
726 **/
727struct lpfc_node_rrq *
728lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
729{
730 struct lpfc_hba *phba = vport->phba;
731 struct lpfc_node_rrq *rrq;
732 struct lpfc_node_rrq *nextrrq;
733 unsigned long iflags;
734
735 if (phba->sli_rev != LPFC_SLI_REV4)
736 return NULL;
737 spin_lock_irqsave(&phba->hbalock, iflags);
738 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
739 if (rrq->vport == vport && rrq->xritag == xri &&
740 rrq->nlp_DID == did){
741 list_del(&rrq->list);
742 spin_unlock_irqrestore(&phba->hbalock, iflags);
743 return rrq;
744 }
745 }
746 spin_unlock_irqrestore(&phba->hbalock, iflags);
747 return NULL;
748}
749
750/**
751 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
752 * @vport: Pointer to vport context object.
James Smart1151e3e2011-02-16 12:39:35 -0500753 * @ndlp: Pointer to the lpfc_node_list structure.
754 * If ndlp is NULL Remove all active RRQs for this vport from the
755 * phba->active_rrq_list and clear the rrq.
756 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
James Smart19ca7602010-11-20 23:11:55 -0500757 **/
758void
James Smart1151e3e2011-02-16 12:39:35 -0500759lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500760
761{
762 struct lpfc_hba *phba = vport->phba;
763 struct lpfc_node_rrq *rrq;
764 struct lpfc_node_rrq *nextrrq;
765 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500766 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500767
768 if (phba->sli_rev != LPFC_SLI_REV4)
769 return;
James Smart1151e3e2011-02-16 12:39:35 -0500770 if (!ndlp) {
771 lpfc_sli4_vport_delete_els_xri_aborted(vport);
772 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
James Smart19ca7602010-11-20 23:11:55 -0500773 }
James Smart1151e3e2011-02-16 12:39:35 -0500774 spin_lock_irqsave(&phba->hbalock, iflags);
775 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
776 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
777 list_move(&rrq->list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500778 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500779
780 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
781 list_del(&rrq->list);
782 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
783 }
James Smart19ca7602010-11-20 23:11:55 -0500784}
785
786/**
James Smart1151e3e2011-02-16 12:39:35 -0500787 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500788 * @phba: Pointer to HBA context object.
789 * @ndlp: Targets nodelist pointer for this exchange.
790 * @xritag the xri in the bitmap to test.
791 *
792 * This function is called with hbalock held. This function
793 * returns 0 = rrq not active for this xri
794 * 1 = rrq is valid for this xri.
795 **/
James Smart1151e3e2011-02-16 12:39:35 -0500796int
797lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smart19ca7602010-11-20 23:11:55 -0500798 uint16_t xritag)
799{
James Smart19ca7602010-11-20 23:11:55 -0500800 if (!ndlp)
801 return 0;
James Smartcff261f2013-12-17 20:29:47 -0500802 if (!ndlp->active_rrqs_xri_bitmap)
803 return 0;
804 if (test_bit(xritag, ndlp->active_rrqs_xri_bitmap))
James Smart19ca7602010-11-20 23:11:55 -0500805 return 1;
806 else
807 return 0;
808}
809
810/**
811 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
812 * @phba: Pointer to HBA context object.
813 * @ndlp: nodelist pointer for this target.
814 * @xritag: xri used in this exchange.
815 * @rxid: Remote Exchange ID.
816 * @send_rrq: Flag used to determine if we should send rrq els cmd.
817 *
818 * This function takes the hbalock.
819 * The active bit is always set in the active rrq xri_bitmap even
820 * if there is no slot avaiable for the other rrq information.
821 *
822 * returns 0 rrq actived for this xri
823 * < 0 No memory or invalid ndlp.
824 **/
825int
826lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smartb42c07c2012-01-18 16:25:55 -0500827 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
James Smart19ca7602010-11-20 23:11:55 -0500828{
James Smart19ca7602010-11-20 23:11:55 -0500829 unsigned long iflags;
James Smartb42c07c2012-01-18 16:25:55 -0500830 struct lpfc_node_rrq *rrq;
831 int empty;
832
833 if (!ndlp)
834 return -EINVAL;
835
836 if (!phba->cfg_enable_rrq)
837 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500838
839 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500840 if (phba->pport->load_flag & FC_UNLOADING) {
841 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
842 goto out;
843 }
844
845 /*
846 * set the active bit even if there is no mem available.
847 */
848 if (NLP_CHK_FREE_REQ(ndlp))
849 goto out;
850
851 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
852 goto out;
853
James Smartcff261f2013-12-17 20:29:47 -0500854 if (!ndlp->active_rrqs_xri_bitmap)
855 goto out;
856
857 if (test_and_set_bit(xritag, ndlp->active_rrqs_xri_bitmap))
James Smartb42c07c2012-01-18 16:25:55 -0500858 goto out;
859
James Smart19ca7602010-11-20 23:11:55 -0500860 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500861 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
862 if (!rrq) {
863 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
864 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
865 " DID:0x%x Send:%d\n",
866 xritag, rxid, ndlp->nlp_DID, send_rrq);
867 return -EINVAL;
868 }
James Smarte5771b42013-03-01 16:37:14 -0500869 if (phba->cfg_enable_rrq == 1)
870 rrq->send_rrq = send_rrq;
871 else
872 rrq->send_rrq = 0;
James Smartb42c07c2012-01-18 16:25:55 -0500873 rrq->xritag = xritag;
James Smart256ec0d2013-04-17 20:14:58 -0400874 rrq->rrq_stop_time = jiffies +
875 msecs_to_jiffies(1000 * (phba->fc_ratov + 1));
James Smartb42c07c2012-01-18 16:25:55 -0500876 rrq->ndlp = ndlp;
877 rrq->nlp_DID = ndlp->nlp_DID;
878 rrq->vport = ndlp->vport;
879 rrq->rxid = rxid;
James Smartb42c07c2012-01-18 16:25:55 -0500880 spin_lock_irqsave(&phba->hbalock, iflags);
881 empty = list_empty(&phba->active_rrq_list);
882 list_add_tail(&rrq->list, &phba->active_rrq_list);
883 phba->hba_flag |= HBA_RRQ_ACTIVE;
884 if (empty)
885 lpfc_worker_wake_up(phba);
886 spin_unlock_irqrestore(&phba->hbalock, iflags);
887 return 0;
888out:
889 spin_unlock_irqrestore(&phba->hbalock, iflags);
890 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
891 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
892 " DID:0x%x Send:%d\n",
893 xritag, rxid, ndlp->nlp_DID, send_rrq);
894 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500895}
896
897/**
James Smartda0436e2009-05-22 14:51:39 -0400898 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
899 * @phba: Pointer to HBA context object.
James Smart19ca7602010-11-20 23:11:55 -0500900 * @piocb: Pointer to the iocbq.
James Smartda0436e2009-05-22 14:51:39 -0400901 *
James Smartdafe8ce2014-09-03 12:56:40 -0400902 * This function is called with the ring lock held. This function
James Smart6d368e52011-05-24 11:44:12 -0400903 * gets a new driver sglq object from the sglq list. If the
James Smartda0436e2009-05-22 14:51:39 -0400904 * list is not empty then it is successful, it returns pointer to the newly
905 * allocated sglq object else it returns NULL.
906 **/
907static struct lpfc_sglq *
James Smart19ca7602010-11-20 23:11:55 -0500908__lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
James Smartda0436e2009-05-22 14:51:39 -0400909{
910 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
911 struct lpfc_sglq *sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500912 struct lpfc_sglq *start_sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500913 struct lpfc_scsi_buf *lpfc_cmd;
914 struct lpfc_nodelist *ndlp;
915 int found = 0;
916
917 if (piocbq->iocb_flag & LPFC_IO_FCP) {
918 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
919 ndlp = lpfc_cmd->rdata->pnode;
James Smartbe858b62010-12-15 17:57:20 -0500920 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
James Smart6c7cf482015-04-07 15:07:25 -0400921 !(piocbq->iocb_flag & LPFC_IO_LIBDFC)) {
James Smart19ca7602010-11-20 23:11:55 -0500922 ndlp = piocbq->context_un.ndlp;
James Smart6c7cf482015-04-07 15:07:25 -0400923 } else if (piocbq->iocb_flag & LPFC_IO_LIBDFC) {
924 if (piocbq->iocb_flag & LPFC_IO_LOOPBACK)
925 ndlp = NULL;
926 else
927 ndlp = piocbq->context_un.ndlp;
928 } else {
James Smart19ca7602010-11-20 23:11:55 -0500929 ndlp = piocbq->context1;
James Smart6c7cf482015-04-07 15:07:25 -0400930 }
James Smart19ca7602010-11-20 23:11:55 -0500931
James Smartda0436e2009-05-22 14:51:39 -0400932 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
James Smart19ca7602010-11-20 23:11:55 -0500933 start_sglq = sglq;
934 while (!found) {
935 if (!sglq)
936 return NULL;
James Smartee0f4fe2012-05-09 21:19:14 -0400937 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_lxritag)) {
James Smart19ca7602010-11-20 23:11:55 -0500938 /* This xri has an rrq outstanding for this DID.
939 * put it back in the list and get another xri.
940 */
941 list_add_tail(&sglq->list, lpfc_sgl_list);
942 sglq = NULL;
943 list_remove_head(lpfc_sgl_list, sglq,
944 struct lpfc_sglq, list);
945 if (sglq == start_sglq) {
946 sglq = NULL;
947 break;
948 } else
949 continue;
950 }
951 sglq->ndlp = ndlp;
952 found = 1;
James Smart6d368e52011-05-24 11:44:12 -0400953 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
James Smart19ca7602010-11-20 23:11:55 -0500954 sglq->state = SGL_ALLOCATED;
955 }
James Smartda0436e2009-05-22 14:51:39 -0400956 return sglq;
957}
958
959/**
James Smart3621a712009-04-06 18:47:14 -0400960 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400961 * @phba: Pointer to HBA context object.
962 *
963 * This function is called with no lock held. This function
964 * allocates a new driver iocb object from the iocb pool. If the
965 * allocation is successful, it returns pointer to the newly
966 * allocated iocb object else it returns NULL.
967 **/
James Smart2e0fef82007-06-17 19:56:36 -0500968struct lpfc_iocbq *
969lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500970{
James Smart2e0fef82007-06-17 19:56:36 -0500971 struct lpfc_iocbq * iocbq = NULL;
972 unsigned long iflags;
973
974 spin_lock_irqsave(&phba->hbalock, iflags);
975 iocbq = __lpfc_sli_get_iocbq(phba);
976 spin_unlock_irqrestore(&phba->hbalock, iflags);
977 return iocbq;
978}
979
James Smarte59058c2008-08-24 21:49:00 -0400980/**
James Smart4f774512009-05-22 14:52:35 -0400981 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
982 * @phba: Pointer to HBA context object.
983 * @iocbq: Pointer to driver iocb object.
984 *
985 * This function is called with hbalock held to release driver
986 * iocb object to the iocb pool. The iotag in the iocb object
987 * does not change for each use of the iocb object. This function
988 * clears all other fields of the iocb object when it is freed.
989 * The sqlq structure that holds the xritag and phys and virtual
990 * mappings for the scatter gather list is retrieved from the
991 * active array of sglq. The get of the sglq pointer also clears
992 * the entry in the array. If the status of the IO indiactes that
993 * this IO was aborted then the sglq entry it put on the
994 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
995 * IO has good status or fails for any other reason then the sglq
996 * entry is added to the free list (lpfc_sgl_list).
997 **/
998static void
999__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1000{
1001 struct lpfc_sglq *sglq;
1002 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04001003 unsigned long iflag = 0;
1004 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart4f774512009-05-22 14:52:35 -04001005
1006 if (iocbq->sli4_xritag == NO_XRI)
1007 sglq = NULL;
1008 else
James Smart6d368e52011-05-24 11:44:12 -04001009 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
1010
James Smart0e9bb8d2013-03-01 16:35:12 -05001011
James Smart4f774512009-05-22 14:52:35 -04001012 if (sglq) {
James Smart0f65ff62010-02-26 14:14:23 -05001013 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
1014 (sglq->state != SGL_XRI_ABORTED)) {
James Smart4f774512009-05-22 14:52:35 -04001015 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
1016 iflag);
1017 list_add(&sglq->list,
1018 &phba->sli4_hba.lpfc_abts_els_sgl_list);
1019 spin_unlock_irqrestore(
1020 &phba->sli4_hba.abts_sgl_list_lock, iflag);
James Smart0f65ff62010-02-26 14:14:23 -05001021 } else {
James Smartdafe8ce2014-09-03 12:56:40 -04001022 spin_lock_irqsave(&pring->ring_lock, iflag);
James Smart0f65ff62010-02-26 14:14:23 -05001023 sglq->state = SGL_FREED;
James Smart19ca7602010-11-20 23:11:55 -05001024 sglq->ndlp = NULL;
James Smartfedd3b72011-02-16 12:39:24 -05001025 list_add_tail(&sglq->list,
1026 &phba->sli4_hba.lpfc_sgl_list);
James Smartdafe8ce2014-09-03 12:56:40 -04001027 spin_unlock_irqrestore(&pring->ring_lock, iflag);
James Smart2a9bf3d2010-06-07 15:24:45 -04001028
1029 /* Check if TXQ queue needs to be serviced */
James Smart0e9bb8d2013-03-01 16:35:12 -05001030 if (!list_empty(&pring->txq))
James Smart2a9bf3d2010-06-07 15:24:45 -04001031 lpfc_worker_wake_up(phba);
James Smart0f65ff62010-02-26 14:14:23 -05001032 }
James Smart4f774512009-05-22 14:52:35 -04001033 }
1034
1035
1036 /*
1037 * Clean all volatile data fields, preserve iotag and node struct.
1038 */
1039 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
James Smart6d368e52011-05-24 11:44:12 -04001040 iocbq->sli4_lxritag = NO_XRI;
James Smart4f774512009-05-22 14:52:35 -04001041 iocbq->sli4_xritag = NO_XRI;
1042 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1043}
1044
James Smart2a9bf3d2010-06-07 15:24:45 -04001045
James Smart4f774512009-05-22 14:52:35 -04001046/**
James Smart3772a992009-05-22 14:50:54 -04001047 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1048 * @phba: Pointer to HBA context object.
1049 * @iocbq: Pointer to driver iocb object.
1050 *
1051 * This function is called with hbalock held to release driver
1052 * iocb object to the iocb pool. The iotag in the iocb object
1053 * does not change for each use of the iocb object. This function
1054 * clears all other fields of the iocb object when it is freed.
1055 **/
1056static void
1057__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1058{
1059 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1060
James Smart0e9bb8d2013-03-01 16:35:12 -05001061
1062 /*
James Smart3772a992009-05-22 14:50:54 -04001063 * Clean all volatile data fields, preserve iotag and node struct.
1064 */
1065 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1066 iocbq->sli4_xritag = NO_XRI;
1067 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1068}
1069
1070/**
James Smart3621a712009-04-06 18:47:14 -04001071 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001072 * @phba: Pointer to HBA context object.
1073 * @iocbq: Pointer to driver iocb object.
1074 *
1075 * This function is called with hbalock held to release driver
1076 * iocb object to the iocb pool. The iotag in the iocb object
1077 * does not change for each use of the iocb object. This function
1078 * clears all other fields of the iocb object when it is freed.
1079 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001080static void
James Smart2e0fef82007-06-17 19:56:36 -05001081__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1082{
James Smart3772a992009-05-22 14:50:54 -04001083 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001084 phba->iocb_cnt--;
James Bottomley604a3e32005-10-29 10:28:33 -05001085}
1086
James Smarte59058c2008-08-24 21:49:00 -04001087/**
James Smart3621a712009-04-06 18:47:14 -04001088 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001089 * @phba: Pointer to HBA context object.
1090 * @iocbq: Pointer to driver iocb object.
1091 *
1092 * This function is called with no lock held to release the iocb to
1093 * iocb pool.
1094 **/
James Smart2e0fef82007-06-17 19:56:36 -05001095void
1096lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1097{
1098 unsigned long iflags;
1099
1100 /*
1101 * Clean all volatile data fields, preserve iotag and node struct.
1102 */
1103 spin_lock_irqsave(&phba->hbalock, iflags);
1104 __lpfc_sli_release_iocbq(phba, iocbq);
1105 spin_unlock_irqrestore(&phba->hbalock, iflags);
1106}
1107
James Smarte59058c2008-08-24 21:49:00 -04001108/**
James Smarta257bf92009-04-06 18:48:10 -04001109 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1110 * @phba: Pointer to HBA context object.
1111 * @iocblist: List of IOCBs.
1112 * @ulpstatus: ULP status in IOCB command field.
1113 * @ulpWord4: ULP word-4 in IOCB command field.
1114 *
1115 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1116 * on the list by invoking the complete callback function associated with the
1117 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1118 * fields.
1119 **/
1120void
1121lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1122 uint32_t ulpstatus, uint32_t ulpWord4)
1123{
1124 struct lpfc_iocbq *piocb;
1125
1126 while (!list_empty(iocblist)) {
1127 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
James Smarta257bf92009-04-06 18:48:10 -04001128 if (!piocb->iocb_cmpl)
1129 lpfc_sli_release_iocbq(phba, piocb);
1130 else {
1131 piocb->iocb.ulpStatus = ulpstatus;
1132 piocb->iocb.un.ulpWord[4] = ulpWord4;
1133 (piocb->iocb_cmpl) (phba, piocb, piocb);
1134 }
1135 }
1136 return;
1137}
1138
1139/**
James Smart3621a712009-04-06 18:47:14 -04001140 * lpfc_sli_iocb_cmd_type - Get the iocb type
1141 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -04001142 *
1143 * This function is called by ring event handler function to get the iocb type.
1144 * This function translates the iocb command to an iocb command type used to
1145 * decide the final disposition of each completed IOCB.
1146 * The function returns
1147 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1148 * LPFC_SOL_IOCB if it is a solicited iocb completion
1149 * LPFC_ABORT_IOCB if it is an abort iocb
1150 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1151 *
1152 * The caller is not required to hold any lock.
1153 **/
dea31012005-04-17 16:05:31 -05001154static lpfc_iocb_type
1155lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1156{
1157 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1158
1159 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1160 return 0;
1161
1162 switch (iocb_cmnd) {
1163 case CMD_XMIT_SEQUENCE_CR:
1164 case CMD_XMIT_SEQUENCE_CX:
1165 case CMD_XMIT_BCAST_CN:
1166 case CMD_XMIT_BCAST_CX:
1167 case CMD_ELS_REQUEST_CR:
1168 case CMD_ELS_REQUEST_CX:
1169 case CMD_CREATE_XRI_CR:
1170 case CMD_CREATE_XRI_CX:
1171 case CMD_GET_RPI_CN:
1172 case CMD_XMIT_ELS_RSP_CX:
1173 case CMD_GET_RPI_CR:
1174 case CMD_FCP_IWRITE_CR:
1175 case CMD_FCP_IWRITE_CX:
1176 case CMD_FCP_IREAD_CR:
1177 case CMD_FCP_IREAD_CX:
1178 case CMD_FCP_ICMND_CR:
1179 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -05001180 case CMD_FCP_TSEND_CX:
1181 case CMD_FCP_TRSP_CX:
1182 case CMD_FCP_TRECEIVE_CX:
1183 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -05001184 case CMD_ADAPTER_MSG:
1185 case CMD_ADAPTER_DUMP:
1186 case CMD_XMIT_SEQUENCE64_CR:
1187 case CMD_XMIT_SEQUENCE64_CX:
1188 case CMD_XMIT_BCAST64_CN:
1189 case CMD_XMIT_BCAST64_CX:
1190 case CMD_ELS_REQUEST64_CR:
1191 case CMD_ELS_REQUEST64_CX:
1192 case CMD_FCP_IWRITE64_CR:
1193 case CMD_FCP_IWRITE64_CX:
1194 case CMD_FCP_IREAD64_CR:
1195 case CMD_FCP_IREAD64_CX:
1196 case CMD_FCP_ICMND64_CR:
1197 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -05001198 case CMD_FCP_TSEND64_CX:
1199 case CMD_FCP_TRSP64_CX:
1200 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -05001201 case CMD_GEN_REQUEST64_CR:
1202 case CMD_GEN_REQUEST64_CX:
1203 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -04001204 case DSSCMD_IWRITE64_CR:
1205 case DSSCMD_IWRITE64_CX:
1206 case DSSCMD_IREAD64_CR:
1207 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -05001208 type = LPFC_SOL_IOCB;
1209 break;
1210 case CMD_ABORT_XRI_CN:
1211 case CMD_ABORT_XRI_CX:
1212 case CMD_CLOSE_XRI_CN:
1213 case CMD_CLOSE_XRI_CX:
1214 case CMD_XRI_ABORTED_CX:
1215 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -04001216 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -05001217 type = LPFC_ABORT_IOCB;
1218 break;
1219 case CMD_RCV_SEQUENCE_CX:
1220 case CMD_RCV_ELS_REQ_CX:
1221 case CMD_RCV_SEQUENCE64_CX:
1222 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -04001223 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -05001224 case CMD_IOCB_RCV_SEQ64_CX:
1225 case CMD_IOCB_RCV_ELS64_CX:
1226 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -05001227 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -05001228 type = LPFC_UNSOL_IOCB;
1229 break;
James Smart3163f722008-02-08 18:50:25 -05001230 case CMD_IOCB_XMIT_MSEQ64_CR:
1231 case CMD_IOCB_XMIT_MSEQ64_CX:
1232 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1233 case CMD_IOCB_RCV_ELS_LIST64_CX:
1234 case CMD_IOCB_CLOSE_EXTENDED_CN:
1235 case CMD_IOCB_ABORT_EXTENDED_CN:
1236 case CMD_IOCB_RET_HBQE64_CN:
1237 case CMD_IOCB_FCP_IBIDIR64_CR:
1238 case CMD_IOCB_FCP_IBIDIR64_CX:
1239 case CMD_IOCB_FCP_ITASKMGT64_CX:
1240 case CMD_IOCB_LOGENTRY_CN:
1241 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1242 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07001243 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -05001244 type = LPFC_UNKNOWN_IOCB;
1245 break;
dea31012005-04-17 16:05:31 -05001246 default:
1247 type = LPFC_UNKNOWN_IOCB;
1248 break;
1249 }
1250
1251 return type;
1252}
1253
James Smarte59058c2008-08-24 21:49:00 -04001254/**
James Smart3621a712009-04-06 18:47:14 -04001255 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -04001256 * @phba: Pointer to HBA context object.
1257 *
1258 * This function is called from SLI initialization code
1259 * to configure every ring of the HBA's SLI interface. The
1260 * caller is not required to hold any lock. This function issues
1261 * a config_ring mailbox command for each ring.
1262 * This function returns zero if successful else returns a negative
1263 * error code.
1264 **/
dea31012005-04-17 16:05:31 -05001265static int
James Smarted957682007-06-17 19:56:37 -05001266lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001267{
1268 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -05001269 LPFC_MBOXQ_t *pmb;
1270 MAILBOX_t *pmbox;
1271 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -05001272
James Smarted957682007-06-17 19:56:37 -05001273 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1274 if (!pmb)
1275 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -04001276 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05001277 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05001278 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -05001279 lpfc_config_ring(phba, i, pmb);
1280 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1281 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -05001282 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04001283 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -05001284 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1285 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001286 rc, pmbox->mbxCommand,
1287 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -05001288 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05001289 ret = -ENXIO;
1290 break;
dea31012005-04-17 16:05:31 -05001291 }
1292 }
James Smarted957682007-06-17 19:56:37 -05001293 mempool_free(pmb, phba->mbox_mem_pool);
1294 return ret;
dea31012005-04-17 16:05:31 -05001295}
1296
James Smarte59058c2008-08-24 21:49:00 -04001297/**
James Smart3621a712009-04-06 18:47:14 -04001298 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -04001299 * @phba: Pointer to HBA context object.
1300 * @pring: Pointer to driver SLI ring object.
1301 * @piocb: Pointer to the driver iocb object.
1302 *
1303 * This function is called with hbalock held. The function adds the
1304 * new iocb to txcmplq of the given ring. This function always returns
1305 * 0. If this function is called for ELS ring, this function checks if
1306 * there is a vport associated with the ELS command. This function also
1307 * starts els_tmofunc timer if this is an ELS command.
1308 **/
dea31012005-04-17 16:05:31 -05001309static int
James Smart2e0fef82007-06-17 19:56:36 -05001310lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1311 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05001312{
dea31012005-04-17 16:05:31 -05001313 list_add_tail(&piocb->list, &pring->txcmplq);
James Smart4f2e66c2012-05-09 21:17:07 -04001314 piocb->iocb_flag |= LPFC_IO_ON_TXCMPLQ;
James Smart2a9bf3d2010-06-07 15:24:45 -04001315
James Smart92d7f7b2007-06-17 19:56:38 -05001316 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1317 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
James Smart06918ac2014-02-20 09:57:57 -05001318 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN) &&
1319 (!(piocb->vport->load_flag & FC_UNLOADING))) {
James Smart92d7f7b2007-06-17 19:56:38 -05001320 if (!piocb->vport)
1321 BUG();
1322 else
1323 mod_timer(&piocb->vport->els_tmofunc,
James Smart256ec0d2013-04-17 20:14:58 -04001324 jiffies +
1325 msecs_to_jiffies(1000 * (phba->fc_ratov << 1)));
James Smart92d7f7b2007-06-17 19:56:38 -05001326 }
1327
dea31012005-04-17 16:05:31 -05001328
James Smart2e0fef82007-06-17 19:56:36 -05001329 return 0;
dea31012005-04-17 16:05:31 -05001330}
1331
James Smarte59058c2008-08-24 21:49:00 -04001332/**
James Smart3621a712009-04-06 18:47:14 -04001333 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -04001334 * @phba: Pointer to HBA context object.
1335 * @pring: Pointer to driver SLI ring object.
1336 *
1337 * This function is called with hbalock held to get next
1338 * iocb in txq of the given ring. If there is any iocb in
1339 * the txq, the function returns first iocb in the list after
1340 * removing the iocb from the list, else it returns NULL.
1341 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04001342struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05001343lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001344{
dea31012005-04-17 16:05:31 -05001345 struct lpfc_iocbq *cmd_iocb;
1346
James Smart858c9f62007-06-17 19:56:39 -05001347 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
James Smart2e0fef82007-06-17 19:56:36 -05001348 return cmd_iocb;
dea31012005-04-17 16:05:31 -05001349}
1350
James Smarte59058c2008-08-24 21:49:00 -04001351/**
James Smart3621a712009-04-06 18:47:14 -04001352 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -04001353 * @phba: Pointer to HBA context object.
1354 * @pring: Pointer to driver SLI ring object.
1355 *
1356 * This function is called with hbalock held and the caller must post the
1357 * iocb without releasing the lock. If the caller releases the lock,
1358 * iocb slot returned by the function is not guaranteed to be available.
1359 * The function returns pointer to the next available iocb slot if there
1360 * is available slot in the ring, else it returns NULL.
1361 * If the get index of the ring is ahead of the put index, the function
1362 * will post an error attention event to the worker thread to take the
1363 * HBA to offline state.
1364 **/
dea31012005-04-17 16:05:31 -05001365static IOCB_t *
1366lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1367{
James Smart34b02dc2008-08-24 21:49:55 -04001368 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James Smart7e56aa22012-08-03 12:35:34 -04001369 uint32_t max_cmd_idx = pring->sli.sli3.numCiocb;
1370 if ((pring->sli.sli3.next_cmdidx == pring->sli.sli3.cmdidx) &&
1371 (++pring->sli.sli3.next_cmdidx >= max_cmd_idx))
1372 pring->sli.sli3.next_cmdidx = 0;
dea31012005-04-17 16:05:31 -05001373
James Smart7e56aa22012-08-03 12:35:34 -04001374 if (unlikely(pring->sli.sli3.local_getidx ==
1375 pring->sli.sli3.next_cmdidx)) {
dea31012005-04-17 16:05:31 -05001376
James Smart7e56aa22012-08-03 12:35:34 -04001377 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05001378
James Smart7e56aa22012-08-03 12:35:34 -04001379 if (unlikely(pring->sli.sli3.local_getidx >= max_cmd_idx)) {
dea31012005-04-17 16:05:31 -05001380 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001381 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02001382 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001383 pring->ringno,
James Smart7e56aa22012-08-03 12:35:34 -04001384 pring->sli.sli3.local_getidx,
1385 max_cmd_idx);
dea31012005-04-17 16:05:31 -05001386
James Smart2e0fef82007-06-17 19:56:36 -05001387 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001388 /*
1389 * All error attention handlers are posted to
1390 * worker thread
1391 */
1392 phba->work_ha |= HA_ERATT;
1393 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05001394
James Smart5e9d9b82008-06-14 22:52:53 -04001395 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05001396
1397 return NULL;
1398 }
1399
James Smart7e56aa22012-08-03 12:35:34 -04001400 if (pring->sli.sli3.local_getidx == pring->sli.sli3.next_cmdidx)
dea31012005-04-17 16:05:31 -05001401 return NULL;
1402 }
1403
James Smarted957682007-06-17 19:56:37 -05001404 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -05001405}
1406
James Smarte59058c2008-08-24 21:49:00 -04001407/**
James Smart3621a712009-04-06 18:47:14 -04001408 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -04001409 * @phba: Pointer to HBA context object.
1410 * @iocbq: Pointer to driver iocb object.
1411 *
1412 * This function gets an iotag for the iocb. If there is no unused iotag and
1413 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1414 * array and assigns a new iotag.
1415 * The function returns the allocated iotag if successful, else returns zero.
1416 * Zero is not a valid iotag.
1417 * The caller is not required to hold any lock.
1418 **/
James Bottomley604a3e32005-10-29 10:28:33 -05001419uint16_t
James Smart2e0fef82007-06-17 19:56:36 -05001420lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -05001421{
James Smart2e0fef82007-06-17 19:56:36 -05001422 struct lpfc_iocbq **new_arr;
1423 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -05001424 size_t new_len;
1425 struct lpfc_sli *psli = &phba->sli;
1426 uint16_t iotag;
dea31012005-04-17 16:05:31 -05001427
James Smart2e0fef82007-06-17 19:56:36 -05001428 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001429 iotag = psli->last_iotag;
1430 if(++iotag < psli->iocbq_lookup_len) {
1431 psli->last_iotag = iotag;
1432 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001433 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001434 iocbq->iotag = iotag;
1435 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -05001436 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -05001437 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1438 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -05001439 spin_unlock_irq(&phba->hbalock);
1440 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -05001441 GFP_KERNEL);
1442 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -05001443 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001444 old_arr = psli->iocbq_lookup;
1445 if (new_len <= psli->iocbq_lookup_len) {
1446 /* highly unprobable case */
1447 kfree(new_arr);
1448 iotag = psli->last_iotag;
1449 if(++iotag < psli->iocbq_lookup_len) {
1450 psli->last_iotag = iotag;
1451 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001452 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001453 iocbq->iotag = iotag;
1454 return iotag;
1455 }
James Smart2e0fef82007-06-17 19:56:36 -05001456 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001457 return 0;
1458 }
1459 if (psli->iocbq_lookup)
1460 memcpy(new_arr, old_arr,
1461 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001462 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001463 psli->iocbq_lookup = new_arr;
1464 psli->iocbq_lookup_len = new_len;
1465 psli->last_iotag = iotag;
1466 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001467 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001468 iocbq->iotag = iotag;
1469 kfree(old_arr);
1470 return iotag;
1471 }
James Smart8f6d98d2006-08-01 07:34:00 -04001472 } else
James Smart2e0fef82007-06-17 19:56:36 -05001473 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001474
James Smartbc739052010-08-04 16:11:18 -04001475 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001476 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1477 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001478
James Bottomley604a3e32005-10-29 10:28:33 -05001479 return 0;
dea31012005-04-17 16:05:31 -05001480}
1481
James Smarte59058c2008-08-24 21:49:00 -04001482/**
James Smart3621a712009-04-06 18:47:14 -04001483 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001484 * @phba: Pointer to HBA context object.
1485 * @pring: Pointer to driver SLI ring object.
1486 * @iocb: Pointer to iocb slot in the ring.
1487 * @nextiocb: Pointer to driver iocb object which need to be
1488 * posted to firmware.
1489 *
1490 * This function is called with hbalock held to post a new iocb to
1491 * the firmware. This function copies the new iocb to ring iocb slot and
1492 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1493 * a completion call back for this iocb else the function will free the
1494 * iocb object.
1495 **/
dea31012005-04-17 16:05:31 -05001496static void
1497lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1498 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1499{
1500 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001501 * Set up an iotag
dea31012005-04-17 16:05:31 -05001502 */
James Bottomley604a3e32005-10-29 10:28:33 -05001503 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001504
James Smarte2a0a9d2008-12-04 22:40:02 -05001505
James Smarta58cbd52007-08-02 11:09:43 -04001506 if (pring->ringno == LPFC_ELS_RING) {
1507 lpfc_debugfs_slow_ring_trc(phba,
1508 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1509 *(((uint32_t *) &nextiocb->iocb) + 4),
1510 *(((uint32_t *) &nextiocb->iocb) + 6),
1511 *(((uint32_t *) &nextiocb->iocb) + 7));
1512 }
1513
dea31012005-04-17 16:05:31 -05001514 /*
1515 * Issue iocb command to adapter
1516 */
James Smart92d7f7b2007-06-17 19:56:38 -05001517 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001518 wmb();
1519 pring->stats.iocb_cmd++;
1520
1521 /*
1522 * If there is no completion routine to call, we can release the
1523 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1524 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1525 */
1526 if (nextiocb->iocb_cmpl)
1527 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001528 else
James Smart2e0fef82007-06-17 19:56:36 -05001529 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001530
1531 /*
1532 * Let the HBA know what IOCB slot will be the next one the
1533 * driver will put a command into.
1534 */
James Smart7e56aa22012-08-03 12:35:34 -04001535 pring->sli.sli3.cmdidx = pring->sli.sli3.next_cmdidx;
1536 writel(pring->sli.sli3.cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001537}
1538
James Smarte59058c2008-08-24 21:49:00 -04001539/**
James Smart3621a712009-04-06 18:47:14 -04001540 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1543 *
1544 * The caller is not required to hold any lock for calling this function.
1545 * This function updates the chip attention bits for the ring to inform firmware
1546 * that there are pending work to be done for this ring and requests an
1547 * interrupt when there is space available in the ring. This function is
1548 * called when the driver is unable to post more iocbs to the ring due
1549 * to unavailability of space in the ring.
1550 **/
dea31012005-04-17 16:05:31 -05001551static void
James Smart2e0fef82007-06-17 19:56:36 -05001552lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001553{
1554 int ringno = pring->ringno;
1555
1556 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1557
1558 wmb();
1559
1560 /*
1561 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1562 * The HBA will tell us when an IOCB entry is available.
1563 */
1564 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1565 readl(phba->CAregaddr); /* flush */
1566
1567 pring->stats.iocb_cmd_full++;
1568}
1569
James Smarte59058c2008-08-24 21:49:00 -04001570/**
James Smart3621a712009-04-06 18:47:14 -04001571 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001572 * @phba: Pointer to HBA context object.
1573 * @pring: Pointer to driver SLI ring object.
1574 *
1575 * This function updates the chip attention register bit for the
1576 * given ring to inform HBA that there is more work to be done
1577 * in this ring. The caller is not required to hold any lock.
1578 **/
dea31012005-04-17 16:05:31 -05001579static void
James Smart2e0fef82007-06-17 19:56:36 -05001580lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001581{
1582 int ringno = pring->ringno;
1583
1584 /*
1585 * Tell the HBA that there is work to do in this ring.
1586 */
James Smart34b02dc2008-08-24 21:49:55 -04001587 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1588 wmb();
1589 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1590 readl(phba->CAregaddr); /* flush */
1591 }
dea31012005-04-17 16:05:31 -05001592}
1593
James Smarte59058c2008-08-24 21:49:00 -04001594/**
James Smart3621a712009-04-06 18:47:14 -04001595 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001596 * @phba: Pointer to HBA context object.
1597 * @pring: Pointer to driver SLI ring object.
1598 *
1599 * This function is called with hbalock held to post pending iocbs
1600 * in the txq to the firmware. This function is called when driver
1601 * detects space available in the ring.
1602 **/
dea31012005-04-17 16:05:31 -05001603static void
James Smart2e0fef82007-06-17 19:56:36 -05001604lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001605{
1606 IOCB_t *iocb;
1607 struct lpfc_iocbq *nextiocb;
1608
1609 /*
1610 * Check to see if:
1611 * (a) there is anything on the txq to send
1612 * (b) link is up
1613 * (c) link attention events can be processed (fcp ring only)
1614 * (d) IOCB processing is not blocked by the outstanding mbox command.
1615 */
James Smart0e9bb8d2013-03-01 16:35:12 -05001616
1617 if (lpfc_is_link_up(phba) &&
1618 (!list_empty(&pring->txq)) &&
dea31012005-04-17 16:05:31 -05001619 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001620 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001621
1622 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1623 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1624 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1625
1626 if (iocb)
1627 lpfc_sli_update_ring(phba, pring);
1628 else
1629 lpfc_sli_update_full_ring(phba, pring);
1630 }
1631
1632 return;
1633}
1634
James Smarte59058c2008-08-24 21:49:00 -04001635/**
James Smart3621a712009-04-06 18:47:14 -04001636 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001637 * @phba: Pointer to HBA context object.
1638 * @hbqno: HBQ number.
1639 *
1640 * This function is called with hbalock held to get the next
1641 * available slot for the given HBQ. If there is free slot
1642 * available for the HBQ it will return pointer to the next available
1643 * HBQ entry else it will return NULL.
1644 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001645static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001646lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1647{
1648 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1649
1650 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1651 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1652 hbqp->next_hbqPutIdx = 0;
1653
1654 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001655 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001656 uint32_t getidx = le32_to_cpu(raw_index);
1657
1658 hbqp->local_hbqGetIdx = getidx;
1659
1660 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1661 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001662 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001663 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001664 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001665 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001666 hbqp->entry_count);
1667
1668 phba->link_state = LPFC_HBA_ERROR;
1669 return NULL;
1670 }
1671
1672 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1673 return NULL;
1674 }
1675
James Smart51ef4c22007-08-02 11:10:31 -04001676 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1677 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001678}
1679
James Smarte59058c2008-08-24 21:49:00 -04001680/**
James Smart3621a712009-04-06 18:47:14 -04001681 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001682 * @phba: Pointer to HBA context object.
1683 *
1684 * This function is called with no lock held to free all the
1685 * hbq buffers while uninitializing the SLI interface. It also
1686 * frees the HBQ buffers returned by the firmware but not yet
1687 * processed by the upper layers.
1688 **/
James Smarted957682007-06-17 19:56:37 -05001689void
1690lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1691{
James Smart92d7f7b2007-06-17 19:56:38 -05001692 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1693 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001694 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001695 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001696 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001697
James Smart51ef4c22007-08-02 11:10:31 -04001698 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001699 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001700 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001701 for (i = 0; i < hbq_count; ++i) {
1702 list_for_each_entry_safe(dmabuf, next_dmabuf,
1703 &phba->hbqs[i].hbq_buffer_list, list) {
1704 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1705 list_del(&hbq_buf->dbuf.list);
1706 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1707 }
James Smarta8adb832007-10-27 13:37:53 -04001708 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001709 }
James Smart3163f722008-02-08 18:50:25 -05001710 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001711 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1712 list) {
James Smart3163f722008-02-08 18:50:25 -05001713 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1714 list_del(&hbq_buf->dbuf.list);
1715 if (hbq_buf->tag == -1) {
1716 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1717 (phba, hbq_buf);
1718 } else {
1719 hbqno = hbq_buf->tag >> 16;
1720 if (hbqno >= LPFC_MAX_HBQS)
1721 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1722 (phba, hbq_buf);
1723 else
1724 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1725 hbq_buf);
1726 }
1727 }
1728
1729 /* Mark the HBQs not in use */
1730 phba->hbq_in_use = 0;
1731 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001732}
1733
James Smarte59058c2008-08-24 21:49:00 -04001734/**
James Smart3621a712009-04-06 18:47:14 -04001735 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001736 * @phba: Pointer to HBA context object.
1737 * @hbqno: HBQ number.
1738 * @hbq_buf: Pointer to HBQ buffer.
1739 *
1740 * This function is called with the hbalock held to post a
1741 * hbq buffer to the firmware. If the function finds an empty
1742 * slot in the HBQ, it will post the buffer. The function will return
1743 * pointer to the hbq entry if it successfully post the buffer
1744 * else it will return NULL.
1745 **/
James Smart3772a992009-05-22 14:50:54 -04001746static int
James Smarted957682007-06-17 19:56:37 -05001747lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001748 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001749{
James Smart3772a992009-05-22 14:50:54 -04001750 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1751}
1752
1753/**
1754 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1755 * @phba: Pointer to HBA context object.
1756 * @hbqno: HBQ number.
1757 * @hbq_buf: Pointer to HBQ buffer.
1758 *
1759 * This function is called with the hbalock held to post a hbq buffer to the
1760 * firmware. If the function finds an empty slot in the HBQ, it will post the
1761 * buffer and place it on the hbq_buffer_list. The function will return zero if
1762 * it successfully post the buffer else it will return an error.
1763 **/
1764static int
1765lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1766 struct hbq_dmabuf *hbq_buf)
1767{
James Smarted957682007-06-17 19:56:37 -05001768 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001769 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001770
1771 /* Get next HBQ entry slot to use */
1772 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1773 if (hbqe) {
1774 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1775
James Smart92d7f7b2007-06-17 19:56:38 -05001776 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1777 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001778 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001779 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001780 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1781 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1782 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001783 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1784 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001785 /* flush */
James Smarted957682007-06-17 19:56:37 -05001786 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001787 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001788 return 0;
1789 } else
1790 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001791}
1792
James Smart4f774512009-05-22 14:52:35 -04001793/**
1794 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1795 * @phba: Pointer to HBA context object.
1796 * @hbqno: HBQ number.
1797 * @hbq_buf: Pointer to HBQ buffer.
1798 *
1799 * This function is called with the hbalock held to post an RQE to the SLI4
1800 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1801 * the hbq_buffer_list and return zero, otherwise it will return an error.
1802 **/
1803static int
1804lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1805 struct hbq_dmabuf *hbq_buf)
1806{
1807 int rc;
1808 struct lpfc_rqe hrqe;
1809 struct lpfc_rqe drqe;
1810
1811 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1812 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1813 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1814 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1815 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1816 &hrqe, &drqe);
1817 if (rc < 0)
1818 return rc;
1819 hbq_buf->tag = rc;
1820 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1821 return 0;
1822}
1823
James Smarte59058c2008-08-24 21:49:00 -04001824/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001825static struct lpfc_hbq_init lpfc_els_hbq = {
1826 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001827 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001828 .mask_count = 0,
1829 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001830 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001831 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001832 .init_count = 40,
1833 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001834};
James Smarted957682007-06-17 19:56:37 -05001835
James Smarte59058c2008-08-24 21:49:00 -04001836/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001837static struct lpfc_hbq_init lpfc_extra_hbq = {
1838 .rn = 1,
1839 .entry_count = 200,
1840 .mask_count = 0,
1841 .profile = 0,
1842 .ring_mask = (1 << LPFC_EXTRA_RING),
1843 .buffer_count = 0,
1844 .init_count = 0,
1845 .add_count = 5,
1846};
1847
James Smarte59058c2008-08-24 21:49:00 -04001848/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001849struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001850 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001851 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001852};
1853
James Smarte59058c2008-08-24 21:49:00 -04001854/**
James Smart3621a712009-04-06 18:47:14 -04001855 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001856 * @phba: Pointer to HBA context object.
1857 * @hbqno: HBQ number.
1858 * @count: Number of HBQ buffers to be posted.
1859 *
James Smartd7c255b2008-08-24 21:50:00 -04001860 * This function is called with no lock held to post more hbq buffers to the
1861 * given HBQ. The function returns the number of HBQ buffers successfully
1862 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001863 **/
James Smart311464e2007-08-02 11:10:37 -04001864static int
James Smart92d7f7b2007-06-17 19:56:38 -05001865lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1866{
James Smartd7c255b2008-08-24 21:50:00 -04001867 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001868 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001869 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001870 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001871 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001872 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001873
James Smartd7c255b2008-08-24 21:50:00 -04001874 if ((phba->hbqs[hbqno].buffer_count + count) >
1875 lpfc_hbq_defs[hbqno]->entry_count)
1876 count = lpfc_hbq_defs[hbqno]->entry_count -
1877 phba->hbqs[hbqno].buffer_count;
1878 if (!count)
1879 return 0;
1880 /* Allocate HBQ entries */
1881 for (i = 0; i < count; i++) {
1882 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1883 if (!hbq_buffer)
1884 break;
1885 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1886 }
James Smart3163f722008-02-08 18:50:25 -05001887 /* Check whether HBQ is still in use */
1888 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001889 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001890 goto err;
1891 while (!list_empty(&hbq_buf_list)) {
1892 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1893 dbuf.list);
1894 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1895 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001896 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001897 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001898 posted++;
1899 } else
James Smart51ef4c22007-08-02 11:10:31 -04001900 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001901 }
James Smart3163f722008-02-08 18:50:25 -05001902 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001903 return posted;
1904err:
1905 spin_unlock_irqrestore(&phba->hbalock, flags);
1906 while (!list_empty(&hbq_buf_list)) {
1907 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1908 dbuf.list);
1909 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1910 }
James Smart92d7f7b2007-06-17 19:56:38 -05001911 return 0;
James Smarted957682007-06-17 19:56:37 -05001912}
1913
James Smarte59058c2008-08-24 21:49:00 -04001914/**
James Smart3621a712009-04-06 18:47:14 -04001915 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001916 * @phba: Pointer to HBA context object.
1917 * @qno: HBQ number.
1918 *
1919 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001920 * is called with no lock held. The function returns the number of HBQ entries
1921 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001922 **/
James Smarted957682007-06-17 19:56:37 -05001923int
James Smart92d7f7b2007-06-17 19:56:38 -05001924lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001925{
James Smartdef9c7a2009-12-21 17:02:28 -05001926 if (phba->sli_rev == LPFC_SLI_REV4)
1927 return 0;
1928 else
1929 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1930 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001931}
1932
James Smarte59058c2008-08-24 21:49:00 -04001933/**
James Smart3621a712009-04-06 18:47:14 -04001934 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001935 * @phba: Pointer to HBA context object.
1936 * @qno: HBQ queue number.
1937 *
1938 * This function is called from SLI initialization code path with
1939 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001940 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001941 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001942static int
James Smart92d7f7b2007-06-17 19:56:38 -05001943lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001944{
James Smartdef9c7a2009-12-21 17:02:28 -05001945 if (phba->sli_rev == LPFC_SLI_REV4)
1946 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
James Smart73d91e52011-10-10 21:32:10 -04001947 lpfc_hbq_defs[qno]->entry_count);
James Smartdef9c7a2009-12-21 17:02:28 -05001948 else
1949 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1950 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05001951}
1952
James Smarte59058c2008-08-24 21:49:00 -04001953/**
James Smart3772a992009-05-22 14:50:54 -04001954 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1955 * @phba: Pointer to HBA context object.
1956 * @hbqno: HBQ number.
1957 *
1958 * This function removes the first hbq buffer on an hbq list and returns a
1959 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1960 **/
1961static struct hbq_dmabuf *
1962lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1963{
1964 struct lpfc_dmabuf *d_buf;
1965
1966 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1967 if (!d_buf)
1968 return NULL;
1969 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1970}
1971
1972/**
James Smart3621a712009-04-06 18:47:14 -04001973 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001974 * @phba: Pointer to HBA context object.
1975 * @tag: Tag of the hbq buffer.
1976 *
1977 * This function is called with hbalock held. This function searches
1978 * for the hbq buffer associated with the given tag in the hbq buffer
1979 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1980 * it returns NULL.
1981 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001982static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001983lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1984{
James Smart92d7f7b2007-06-17 19:56:38 -05001985 struct lpfc_dmabuf *d_buf;
1986 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001987 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001988
James Smart51ef4c22007-08-02 11:10:31 -04001989 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001990 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001991 return NULL;
1992
James Smart3772a992009-05-22 14:50:54 -04001993 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001994 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001995 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001996 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001997 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001998 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001999 }
2000 }
James Smart3772a992009-05-22 14:50:54 -04002001 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05002002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04002003 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04002004 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05002005 return NULL;
James Smarted957682007-06-17 19:56:37 -05002006}
2007
James Smarte59058c2008-08-24 21:49:00 -04002008/**
James Smart3621a712009-04-06 18:47:14 -04002009 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04002010 * @phba: Pointer to HBA context object.
2011 * @hbq_buffer: Pointer to HBQ buffer.
2012 *
2013 * This function is called with hbalock. This function gives back
2014 * the hbq buffer to firmware. If the HBQ does not have space to
2015 * post the buffer, it will free the buffer.
2016 **/
James Smarted957682007-06-17 19:56:37 -05002017void
James Smart51ef4c22007-08-02 11:10:31 -04002018lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05002019{
2020 uint32_t hbqno;
2021
James Smart51ef4c22007-08-02 11:10:31 -04002022 if (hbq_buffer) {
2023 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04002024 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04002025 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05002026 }
2027}
2028
James Smarte59058c2008-08-24 21:49:00 -04002029/**
James Smart3621a712009-04-06 18:47:14 -04002030 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04002031 * @mbxCommand: mailbox command code.
2032 *
2033 * This function is called by the mailbox event handler function to verify
2034 * that the completed mailbox command is a legitimate mailbox command. If the
2035 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2036 * and the mailbox event handler will take the HBA offline.
2037 **/
dea31012005-04-17 16:05:31 -05002038static int
2039lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
2040{
2041 uint8_t ret;
2042
2043 switch (mbxCommand) {
2044 case MBX_LOAD_SM:
2045 case MBX_READ_NV:
2046 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04002047 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05002048 case MBX_RUN_BIU_DIAG:
2049 case MBX_INIT_LINK:
2050 case MBX_DOWN_LINK:
2051 case MBX_CONFIG_LINK:
2052 case MBX_CONFIG_RING:
2053 case MBX_RESET_RING:
2054 case MBX_READ_CONFIG:
2055 case MBX_READ_RCONFIG:
2056 case MBX_READ_SPARM:
2057 case MBX_READ_STATUS:
2058 case MBX_READ_RPI:
2059 case MBX_READ_XRI:
2060 case MBX_READ_REV:
2061 case MBX_READ_LNK_STAT:
2062 case MBX_REG_LOGIN:
2063 case MBX_UNREG_LOGIN:
dea31012005-04-17 16:05:31 -05002064 case MBX_CLEAR_LA:
2065 case MBX_DUMP_MEMORY:
2066 case MBX_DUMP_CONTEXT:
2067 case MBX_RUN_DIAGS:
2068 case MBX_RESTART:
2069 case MBX_UPDATE_CFG:
2070 case MBX_DOWN_LOAD:
2071 case MBX_DEL_LD_ENTRY:
2072 case MBX_RUN_PROGRAM:
2073 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05002074 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05002075 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002076 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05002077 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002078 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05002079 case MBX_LOAD_AREA:
2080 case MBX_RUN_BIU_DIAG64:
2081 case MBX_CONFIG_PORT:
2082 case MBX_READ_SPARM64:
2083 case MBX_READ_RPI64:
2084 case MBX_REG_LOGIN64:
James Smart76a95d72010-11-20 23:11:48 -05002085 case MBX_READ_TOPOLOGY:
James Smart09372822008-01-11 01:52:54 -05002086 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05002087 case MBX_SET_DEBUG:
2088 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04002089 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05002090 case MBX_REG_VPI:
2091 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05002092 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04002093 case MBX_PORT_CAPABILITIES:
2094 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04002095 case MBX_SLI4_CONFIG:
2096 case MBX_SLI4_REQ_FTRS:
2097 case MBX_REG_FCFI:
2098 case MBX_UNREG_FCFI:
2099 case MBX_REG_VFI:
2100 case MBX_UNREG_VFI:
2101 case MBX_INIT_VPI:
2102 case MBX_INIT_VFI:
2103 case MBX_RESUME_RPI:
James Smartc7495932010-04-06 15:05:28 -04002104 case MBX_READ_EVENT_LOG_STATUS:
2105 case MBX_READ_EVENT_LOG:
James Smartdcf2a4e2010-09-29 11:18:53 -04002106 case MBX_SECURITY_MGMT:
2107 case MBX_AUTH_PORT:
James Smart940eb682012-08-03 12:37:08 -04002108 case MBX_ACCESS_VDATA:
dea31012005-04-17 16:05:31 -05002109 ret = mbxCommand;
2110 break;
2111 default:
2112 ret = MBX_SHUTDOWN;
2113 break;
2114 }
James Smart2e0fef82007-06-17 19:56:36 -05002115 return ret;
dea31012005-04-17 16:05:31 -05002116}
James Smarte59058c2008-08-24 21:49:00 -04002117
2118/**
James Smart3621a712009-04-06 18:47:14 -04002119 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002120 * @phba: Pointer to HBA context object.
2121 * @pmboxq: Pointer to mailbox command.
2122 *
2123 * This is completion handler function for mailbox commands issued from
2124 * lpfc_sli_issue_mbox_wait function. This function is called by the
2125 * mailbox event handler function with no lock held. This function
2126 * will wake up thread waiting on the wait queue pointed by context1
2127 * of the mailbox.
2128 **/
James Smart04c68492009-05-22 14:52:52 -04002129void
James Smart2e0fef82007-06-17 19:56:36 -05002130lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05002131{
2132 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05002133 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05002134
2135 /*
2136 * If pdone_q is empty, the driver thread gave up waiting and
2137 * continued running.
2138 */
James Smart7054a602007-04-25 09:52:34 -04002139 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05002140 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002141 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2142 if (pdone_q)
2143 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05002144 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002145 return;
2146}
2147
James Smarte59058c2008-08-24 21:49:00 -04002148
2149/**
James Smart3621a712009-04-06 18:47:14 -04002150 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002151 * @phba: Pointer to HBA context object.
2152 * @pmb: Pointer to mailbox object.
2153 *
2154 * This function is the default mailbox completion handler. It
2155 * frees the memory resources associated with the completed mailbox
2156 * command. If the completed command is a REG_LOGIN mailbox command,
2157 * this function will issue a UREG_LOGIN to re-claim the RPI.
2158 **/
dea31012005-04-17 16:05:31 -05002159void
James Smart2e0fef82007-06-17 19:56:36 -05002160lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05002161{
James Smartd439d282010-09-29 11:18:45 -04002162 struct lpfc_vport *vport = pmb->vport;
dea31012005-04-17 16:05:31 -05002163 struct lpfc_dmabuf *mp;
James Smartd439d282010-09-29 11:18:45 -04002164 struct lpfc_nodelist *ndlp;
James Smart5af5eee2010-10-22 11:06:38 -04002165 struct Scsi_Host *shost;
James Smart04c68492009-05-22 14:52:52 -04002166 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04002167 int rc;
2168
dea31012005-04-17 16:05:31 -05002169 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04002170
dea31012005-04-17 16:05:31 -05002171 if (mp) {
2172 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2173 kfree(mp);
2174 }
James Smart7054a602007-04-25 09:52:34 -04002175
2176 /*
2177 * If a REG_LOGIN succeeded after node is destroyed or node
2178 * is in re-discovery driver need to cleanup the RPI.
2179 */
James Smart2e0fef82007-06-17 19:56:36 -05002180 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04002181 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2182 !pmb->u.mb.mbxStatus) {
2183 rpi = pmb->u.mb.un.varWords[0];
James Smart6d368e52011-05-24 11:44:12 -04002184 vpi = pmb->u.mb.un.varRegLogin.vpi;
James Smart04c68492009-05-22 14:52:52 -04002185 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002186 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04002187 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2188 if (rc != MBX_NOT_FINISHED)
2189 return;
2190 }
2191
James Smart695a8142010-01-26 23:08:03 -05002192 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2193 !(phba->pport->load_flag & FC_UNLOADING) &&
2194 !pmb->u.mb.mbxStatus) {
James Smart5af5eee2010-10-22 11:06:38 -04002195 shost = lpfc_shost_from_vport(vport);
2196 spin_lock_irq(shost->host_lock);
2197 vport->vpi_state |= LPFC_VPI_REGISTERED;
2198 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2199 spin_unlock_irq(shost->host_lock);
James Smart695a8142010-01-26 23:08:03 -05002200 }
2201
James Smartd439d282010-09-29 11:18:45 -04002202 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2203 ndlp = (struct lpfc_nodelist *)pmb->context2;
2204 lpfc_nlp_put(ndlp);
2205 pmb->context2 = NULL;
2206 }
2207
James Smartdcf2a4e2010-09-29 11:18:53 -04002208 /* Check security permission status on INIT_LINK mailbox command */
2209 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2210 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2211 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2212 "2860 SLI authentication is required "
2213 "for INIT_LINK but has not done yet\n");
2214
James Smart04c68492009-05-22 14:52:52 -04002215 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2216 lpfc_sli4_mbox_cmd_free(phba, pmb);
2217 else
2218 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05002219}
James Smartbe6bb942015-04-07 15:07:22 -04002220 /**
2221 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2222 * @phba: Pointer to HBA context object.
2223 * @pmb: Pointer to mailbox object.
2224 *
2225 * This function is the unreg rpi mailbox completion handler. It
2226 * frees the memory resources associated with the completed mailbox
2227 * command. An additional refrenece is put on the ndlp to prevent
2228 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2229 * the unreg mailbox command completes, this routine puts the
2230 * reference back.
2231 *
2232 **/
2233void
2234lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
2235{
2236 struct lpfc_vport *vport = pmb->vport;
2237 struct lpfc_nodelist *ndlp;
2238
2239 ndlp = pmb->context1;
2240 if (pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) {
2241 if (phba->sli_rev == LPFC_SLI_REV4 &&
2242 (bf_get(lpfc_sli_intf_if_type,
2243 &phba->sli4_hba.sli_intf) ==
2244 LPFC_SLI_INTF_IF_TYPE_2)) {
2245 if (ndlp) {
2246 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
2247 "0010 UNREG_LOGIN vpi:%x "
2248 "rpi:%x DID:%x map:%x %p\n",
2249 vport->vpi, ndlp->nlp_rpi,
2250 ndlp->nlp_DID,
2251 ndlp->nlp_usg_map, ndlp);
James Smart7c5e5182015-05-22 10:42:43 -04002252 ndlp->nlp_flag &= ~NLP_LOGO_ACC;
James Smartbe6bb942015-04-07 15:07:22 -04002253 lpfc_nlp_put(ndlp);
2254 }
2255 }
2256 }
2257
2258 mempool_free(pmb, phba->mbox_mem_pool);
2259}
dea31012005-04-17 16:05:31 -05002260
James Smarte59058c2008-08-24 21:49:00 -04002261/**
James Smart3621a712009-04-06 18:47:14 -04002262 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04002263 * @phba: Pointer to HBA context object.
2264 *
2265 * This function is called with no lock held. This function processes all
2266 * the completed mailbox commands and gives it to upper layers. The interrupt
2267 * service routine processes mailbox completion interrupt and adds completed
2268 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2269 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2270 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2271 * function returns the mailbox commands to the upper layer by calling the
2272 * completion handler function of each mailbox.
2273 **/
dea31012005-04-17 16:05:31 -05002274int
James Smart2e0fef82007-06-17 19:56:36 -05002275lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05002276{
James Smart92d7f7b2007-06-17 19:56:38 -05002277 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05002278 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05002279 int rc;
2280 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05002281
2282 phba->sli.slistat.mbox_event++;
2283
James Smart92d7f7b2007-06-17 19:56:38 -05002284 /* Get all completed mailboxe buffers into the cmplq */
2285 spin_lock_irq(&phba->hbalock);
2286 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2287 spin_unlock_irq(&phba->hbalock);
2288
dea31012005-04-17 16:05:31 -05002289 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05002290 do {
2291 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2292 if (pmb == NULL)
2293 break;
2294
James Smart04c68492009-05-22 14:52:52 -04002295 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05002296
James Smart858c9f62007-06-17 19:56:39 -05002297 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2298 if (pmb->vport) {
2299 lpfc_debugfs_disc_trc(pmb->vport,
2300 LPFC_DISC_TRC_MBOX_VPORT,
2301 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2302 (uint32_t)pmbox->mbxCommand,
2303 pmbox->un.varWords[0],
2304 pmbox->un.varWords[1]);
2305 }
2306 else {
2307 lpfc_debugfs_disc_trc(phba->pport,
2308 LPFC_DISC_TRC_MBOX,
2309 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2310 (uint32_t)pmbox->mbxCommand,
2311 pmbox->un.varWords[0],
2312 pmbox->un.varWords[1]);
2313 }
2314 }
2315
dea31012005-04-17 16:05:31 -05002316 /*
2317 * It is a fatal error if unknown mbox command completion.
2318 */
2319 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2320 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02002321 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05002322 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002323 "(%d):0323 Unknown Mailbox command "
James Smarta183a152011-10-10 21:32:43 -04002324 "x%x (x%x/x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002325 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04002326 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002327 lpfc_sli_config_mbox_subsys_get(phba,
2328 pmb),
2329 lpfc_sli_config_mbox_opcode_get(phba,
2330 pmb));
James Smart2e0fef82007-06-17 19:56:36 -05002331 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05002332 phba->work_hs = HS_FFER3;
2333 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002334 continue;
dea31012005-04-17 16:05:31 -05002335 }
2336
dea31012005-04-17 16:05:31 -05002337 if (pmbox->mbxStatus) {
2338 phba->sli.slistat.mbox_stat_err++;
2339 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2340 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05002341 lpfc_printf_log(phba, KERN_INFO,
James Smarta183a152011-10-10 21:32:43 -04002342 LOG_MBOX | LOG_SLI,
2343 "(%d):0305 Mbox cmd cmpl "
2344 "error - RETRYing Data: x%x "
2345 "(x%x/x%x) x%x x%x x%x\n",
2346 pmb->vport ? pmb->vport->vpi : 0,
2347 pmbox->mbxCommand,
2348 lpfc_sli_config_mbox_subsys_get(phba,
2349 pmb),
2350 lpfc_sli_config_mbox_opcode_get(phba,
2351 pmb),
2352 pmbox->mbxStatus,
2353 pmbox->un.varWords[0],
2354 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05002355 pmbox->mbxStatus = 0;
2356 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05002357 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04002358 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05002359 continue;
dea31012005-04-17 16:05:31 -05002360 }
2361 }
2362
2363 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05002364 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04002365 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
James Smarte74c03c2013-04-17 20:15:19 -04002366 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2367 "x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002368 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05002369 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002370 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2371 lpfc_sli_config_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05002372 pmb->mbox_cmpl,
2373 *((uint32_t *) pmbox),
2374 pmbox->un.varWords[0],
2375 pmbox->un.varWords[1],
2376 pmbox->un.varWords[2],
2377 pmbox->un.varWords[3],
2378 pmbox->un.varWords[4],
2379 pmbox->un.varWords[5],
2380 pmbox->un.varWords[6],
James Smarte74c03c2013-04-17 20:15:19 -04002381 pmbox->un.varWords[7],
2382 pmbox->un.varWords[8],
2383 pmbox->un.varWords[9],
2384 pmbox->un.varWords[10]);
dea31012005-04-17 16:05:31 -05002385
James Smart92d7f7b2007-06-17 19:56:38 -05002386 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05002387 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002388 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05002389 return 0;
dea31012005-04-17 16:05:31 -05002390}
James Smart92d7f7b2007-06-17 19:56:38 -05002391
James Smarte59058c2008-08-24 21:49:00 -04002392/**
James Smart3621a712009-04-06 18:47:14 -04002393 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04002394 * @phba: Pointer to HBA context object.
2395 * @pring: Pointer to driver SLI ring object.
2396 * @tag: buffer tag.
2397 *
2398 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2399 * is set in the tag the buffer is posted for a particular exchange,
2400 * the function will return the buffer without replacing the buffer.
2401 * If the buffer is for unsolicited ELS or CT traffic, this function
2402 * returns the buffer and also posts another buffer to the firmware.
2403 **/
James Smart76bb24e2007-10-27 13:38:00 -04002404static struct lpfc_dmabuf *
2405lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05002406 struct lpfc_sli_ring *pring,
2407 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04002408{
James Smart9f1e1b52008-12-04 22:39:40 -05002409 struct hbq_dmabuf *hbq_entry;
2410
James Smart76bb24e2007-10-27 13:38:00 -04002411 if (tag & QUE_BUFTAG_BIT)
2412 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05002413 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2414 if (!hbq_entry)
2415 return NULL;
2416 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04002417}
James Smart57127f12007-10-27 13:37:05 -04002418
James Smart3772a992009-05-22 14:50:54 -04002419/**
2420 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2421 * @phba: Pointer to HBA context object.
2422 * @pring: Pointer to driver SLI ring object.
2423 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2424 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2425 * @fch_type: the type for the first frame of the sequence.
2426 *
2427 * This function is called with no lock held. This function uses the r_ctl and
2428 * type of the received sequence to find the correct callback function to call
2429 * to process the sequence.
2430 **/
2431static int
2432lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2433 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2434 uint32_t fch_type)
2435{
2436 int i;
2437
2438 /* unSolicited Responses */
2439 if (pring->prt[0].profile) {
2440 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2441 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2442 saveq);
2443 return 1;
2444 }
2445 /* We must search, based on rctl / type
2446 for the right routine */
2447 for (i = 0; i < pring->num_mask; i++) {
2448 if ((pring->prt[i].rctl == fch_r_ctl) &&
2449 (pring->prt[i].type == fch_type)) {
2450 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2451 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2452 (phba, pring, saveq);
2453 return 1;
2454 }
2455 }
2456 return 0;
2457}
James Smarte59058c2008-08-24 21:49:00 -04002458
2459/**
James Smart3621a712009-04-06 18:47:14 -04002460 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04002461 * @phba: Pointer to HBA context object.
2462 * @pring: Pointer to driver SLI ring object.
2463 * @saveq: Pointer to the unsolicited iocb.
2464 *
2465 * This function is called with no lock held by the ring event handler
2466 * when there is an unsolicited iocb posted to the response ring by the
2467 * firmware. This function gets the buffer associated with the iocbs
2468 * and calls the event handler for the ring. This function handles both
2469 * qring buffers and hbq buffers.
2470 * When the function returns 1 the caller can free the iocb object otherwise
2471 * upper layer functions will free the iocb objects.
2472 **/
dea31012005-04-17 16:05:31 -05002473static int
2474lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2475 struct lpfc_iocbq *saveq)
2476{
2477 IOCB_t * irsp;
2478 WORD5 * w5p;
2479 uint32_t Rctl, Type;
James Smart76bb24e2007-10-27 13:38:00 -04002480 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05002481 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05002482
dea31012005-04-17 16:05:31 -05002483 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04002484
2485 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2486 if (pring->lpfc_sli_rcv_async_status)
2487 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2488 else
2489 lpfc_printf_log(phba,
2490 KERN_WARNING,
2491 LOG_SLI,
2492 "0316 Ring %d handler: unexpected "
2493 "ASYNC_STATUS iocb received evt_code "
2494 "0x%x\n",
2495 pring->ringno,
2496 irsp->un.asyncstat.evt_code);
2497 return 1;
2498 }
2499
James Smart3163f722008-02-08 18:50:25 -05002500 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2501 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2502 if (irsp->ulpBdeCount > 0) {
2503 dmzbuf = lpfc_sli_get_buff(phba, pring,
2504 irsp->un.ulpWord[3]);
2505 lpfc_in_buf_free(phba, dmzbuf);
2506 }
2507
2508 if (irsp->ulpBdeCount > 1) {
2509 dmzbuf = lpfc_sli_get_buff(phba, pring,
2510 irsp->unsli3.sli3Words[3]);
2511 lpfc_in_buf_free(phba, dmzbuf);
2512 }
2513
2514 if (irsp->ulpBdeCount > 2) {
2515 dmzbuf = lpfc_sli_get_buff(phba, pring,
2516 irsp->unsli3.sli3Words[7]);
2517 lpfc_in_buf_free(phba, dmzbuf);
2518 }
2519
2520 return 1;
2521 }
2522
James Smart92d7f7b2007-06-17 19:56:38 -05002523 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002524 if (irsp->ulpBdeCount != 0) {
2525 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002526 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002527 if (!saveq->context2)
2528 lpfc_printf_log(phba,
2529 KERN_ERR,
2530 LOG_SLI,
2531 "0341 Ring %d Cannot find buffer for "
2532 "an unsolicited iocb. tag 0x%x\n",
2533 pring->ringno,
2534 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002535 }
2536 if (irsp->ulpBdeCount == 2) {
2537 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002538 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002539 if (!saveq->context3)
2540 lpfc_printf_log(phba,
2541 KERN_ERR,
2542 LOG_SLI,
2543 "0342 Ring %d Cannot find buffer for an"
2544 " unsolicited iocb. tag 0x%x\n",
2545 pring->ringno,
2546 irsp->unsli3.sli3Words[7]);
2547 }
2548 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002549 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002550 if (irsp->ulpBdeCount != 0) {
2551 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2552 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002553 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002554 lpfc_printf_log(phba,
2555 KERN_ERR,
2556 LOG_SLI,
2557 "0343 Ring %d Cannot find "
2558 "buffer for an unsolicited iocb"
2559 ". tag 0x%x\n", pring->ringno,
2560 irsp->un.ulpWord[3]);
2561 }
2562 if (irsp->ulpBdeCount == 2) {
2563 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2564 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002565 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002566 lpfc_printf_log(phba,
2567 KERN_ERR,
2568 LOG_SLI,
2569 "0344 Ring %d Cannot find "
2570 "buffer for an unsolicited "
2571 "iocb. tag 0x%x\n",
2572 pring->ringno,
2573 irsp->unsli3.sli3Words[7]);
2574 }
2575 }
James Smart92d7f7b2007-06-17 19:56:38 -05002576 }
James Smart9c2face2008-01-11 01:53:18 -05002577 if (irsp->ulpBdeCount != 0 &&
2578 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2579 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2580 int found = 0;
2581
2582 /* search continue save q for same XRI */
2583 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
James Smart7851fe22011-07-22 18:36:52 -04002584 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2585 saveq->iocb.unsli3.rcvsli3.ox_id) {
James Smart9c2face2008-01-11 01:53:18 -05002586 list_add_tail(&saveq->list, &iocbq->list);
2587 found = 1;
2588 break;
2589 }
2590 }
2591 if (!found)
2592 list_add_tail(&saveq->clist,
2593 &pring->iocb_continue_saveq);
2594 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2595 list_del_init(&iocbq->clist);
2596 saveq = iocbq;
2597 irsp = &(saveq->iocb);
2598 } else
2599 return 0;
2600 }
2601 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2602 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2603 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002604 Rctl = FC_RCTL_ELS_REQ;
2605 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002606 } else {
2607 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2608 Rctl = w5p->hcsw.Rctl;
2609 Type = w5p->hcsw.Type;
2610
2611 /* Firmware Workaround */
2612 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2613 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2614 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002615 Rctl = FC_RCTL_ELS_REQ;
2616 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002617 w5p->hcsw.Rctl = Rctl;
2618 w5p->hcsw.Type = Type;
2619 }
2620 }
James Smart92d7f7b2007-06-17 19:56:38 -05002621
James Smart3772a992009-05-22 14:50:54 -04002622 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002623 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002624 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002625 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002626 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002627
James Smart92d7f7b2007-06-17 19:56:38 -05002628 return 1;
dea31012005-04-17 16:05:31 -05002629}
2630
James Smarte59058c2008-08-24 21:49:00 -04002631/**
James Smart3621a712009-04-06 18:47:14 -04002632 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002633 * @phba: Pointer to HBA context object.
2634 * @pring: Pointer to driver SLI ring object.
2635 * @prspiocb: Pointer to response iocb object.
2636 *
2637 * This function looks up the iocb_lookup table to get the command iocb
2638 * corresponding to the given response iocb using the iotag of the
2639 * response iocb. This function is called with the hbalock held.
2640 * This function returns the command iocb object if it finds the command
2641 * iocb else returns NULL.
2642 **/
dea31012005-04-17 16:05:31 -05002643static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002644lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2645 struct lpfc_sli_ring *pring,
2646 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002647{
dea31012005-04-17 16:05:31 -05002648 struct lpfc_iocbq *cmd_iocb = NULL;
2649 uint16_t iotag;
2650
James Bottomley604a3e32005-10-29 10:28:33 -05002651 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002652
James Bottomley604a3e32005-10-29 10:28:33 -05002653 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2654 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002655 list_del_init(&cmd_iocb->list);
James Smart4f2e66c2012-05-09 21:17:07 -04002656 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
James Smart4f2e66c2012-05-09 21:17:07 -04002657 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
James Smart2a9bf3d2010-06-07 15:24:45 -04002658 }
James Bottomley604a3e32005-10-29 10:28:33 -05002659 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002660 }
2661
dea31012005-04-17 16:05:31 -05002662 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002663 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002664 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002665 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002666 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002667 return NULL;
2668}
2669
James Smarte59058c2008-08-24 21:49:00 -04002670/**
James Smart3772a992009-05-22 14:50:54 -04002671 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2672 * @phba: Pointer to HBA context object.
2673 * @pring: Pointer to driver SLI ring object.
2674 * @iotag: IOCB tag.
2675 *
2676 * This function looks up the iocb_lookup table to get the command iocb
2677 * corresponding to the given iotag. This function is called with the
2678 * hbalock held.
2679 * This function returns the command iocb object if it finds the command
2680 * iocb else returns NULL.
2681 **/
2682static struct lpfc_iocbq *
2683lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2684 struct lpfc_sli_ring *pring, uint16_t iotag)
2685{
2686 struct lpfc_iocbq *cmd_iocb;
2687
2688 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2689 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart4f2e66c2012-05-09 21:17:07 -04002690 if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
2691 /* remove from txcmpl queue list */
2692 list_del_init(&cmd_iocb->list);
2693 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
James Smart4f2e66c2012-05-09 21:17:07 -04002694 return cmd_iocb;
James Smart2a9bf3d2010-06-07 15:24:45 -04002695 }
James Smart3772a992009-05-22 14:50:54 -04002696 }
James Smart3772a992009-05-22 14:50:54 -04002697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2698 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2699 iotag, phba->sli.last_iotag);
2700 return NULL;
2701}
2702
2703/**
James Smart3621a712009-04-06 18:47:14 -04002704 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002705 * @phba: Pointer to HBA context object.
2706 * @pring: Pointer to driver SLI ring object.
2707 * @saveq: Pointer to the response iocb to be processed.
2708 *
2709 * This function is called by the ring event handler for non-fcp
2710 * rings when there is a new response iocb in the response ring.
2711 * The caller is not required to hold any locks. This function
2712 * gets the command iocb associated with the response iocb and
2713 * calls the completion handler for the command iocb. If there
2714 * is no completion handler, the function will free the resources
2715 * associated with command iocb. If the response iocb is for
2716 * an already aborted command iocb, the status of the completion
2717 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2718 * This function always returns 1.
2719 **/
dea31012005-04-17 16:05:31 -05002720static int
James Smart2e0fef82007-06-17 19:56:36 -05002721lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002722 struct lpfc_iocbq *saveq)
2723{
James Smart2e0fef82007-06-17 19:56:36 -05002724 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002725 int rc = 1;
2726 unsigned long iflag;
2727
2728 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002729 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002730 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002731 spin_unlock_irqrestore(&phba->hbalock, iflag);
2732
dea31012005-04-17 16:05:31 -05002733 if (cmdiocbp) {
2734 if (cmdiocbp->iocb_cmpl) {
2735 /*
James Smartea2151b2008-09-07 11:52:10 -04002736 * If an ELS command failed send an event to mgmt
2737 * application.
2738 */
2739 if (saveq->iocb.ulpStatus &&
2740 (pring->ringno == LPFC_ELS_RING) &&
2741 (cmdiocbp->iocb.ulpCommand ==
2742 CMD_ELS_REQUEST64_CR))
2743 lpfc_send_els_failure_event(phba,
2744 cmdiocbp, saveq);
2745
2746 /*
dea31012005-04-17 16:05:31 -05002747 * Post all ELS completions to the worker thread.
2748 * All other are passed to the completion callback.
2749 */
2750 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002751 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2752 (cmdiocbp->iocb_flag &
2753 LPFC_DRIVER_ABORTED)) {
2754 spin_lock_irqsave(&phba->hbalock,
2755 iflag);
James Smart07951072007-04-25 09:51:38 -04002756 cmdiocbp->iocb_flag &=
2757 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002758 spin_unlock_irqrestore(&phba->hbalock,
2759 iflag);
James Smart07951072007-04-25 09:51:38 -04002760 saveq->iocb.ulpStatus =
2761 IOSTAT_LOCAL_REJECT;
2762 saveq->iocb.un.ulpWord[4] =
2763 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002764
2765 /* Firmware could still be in progress
2766 * of DMAing payload, so don't free data
2767 * buffer till after a hbeat.
2768 */
James Smart341af102010-01-26 23:07:37 -05002769 spin_lock_irqsave(&phba->hbalock,
2770 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002771 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002772 spin_unlock_irqrestore(&phba->hbalock,
2773 iflag);
2774 }
James Smart0f65ff62010-02-26 14:14:23 -05002775 if (phba->sli_rev == LPFC_SLI_REV4) {
2776 if (saveq->iocb_flag &
2777 LPFC_EXCHANGE_BUSY) {
2778 /* Set cmdiocb flag for the
2779 * exchange busy so sgl (xri)
2780 * will not be released until
2781 * the abort xri is received
2782 * from hba.
2783 */
2784 spin_lock_irqsave(
2785 &phba->hbalock, iflag);
2786 cmdiocbp->iocb_flag |=
2787 LPFC_EXCHANGE_BUSY;
2788 spin_unlock_irqrestore(
2789 &phba->hbalock, iflag);
2790 }
2791 if (cmdiocbp->iocb_flag &
2792 LPFC_DRIVER_ABORTED) {
2793 /*
2794 * Clear LPFC_DRIVER_ABORTED
2795 * bit in case it was driver
2796 * initiated abort.
2797 */
2798 spin_lock_irqsave(
2799 &phba->hbalock, iflag);
2800 cmdiocbp->iocb_flag &=
2801 ~LPFC_DRIVER_ABORTED;
2802 spin_unlock_irqrestore(
2803 &phba->hbalock, iflag);
2804 cmdiocbp->iocb.ulpStatus =
2805 IOSTAT_LOCAL_REJECT;
2806 cmdiocbp->iocb.un.ulpWord[4] =
2807 IOERR_ABORT_REQUESTED;
2808 /*
2809 * For SLI4, irsiocb contains
2810 * NO_XRI in sli_xritag, it
2811 * shall not affect releasing
2812 * sgl (xri) process.
2813 */
2814 saveq->iocb.ulpStatus =
2815 IOSTAT_LOCAL_REJECT;
2816 saveq->iocb.un.ulpWord[4] =
2817 IOERR_SLI_ABORTED;
2818 spin_lock_irqsave(
2819 &phba->hbalock, iflag);
2820 saveq->iocb_flag |=
2821 LPFC_DELAY_MEM_FREE;
2822 spin_unlock_irqrestore(
2823 &phba->hbalock, iflag);
2824 }
James Smart07951072007-04-25 09:51:38 -04002825 }
dea31012005-04-17 16:05:31 -05002826 }
James Smart2e0fef82007-06-17 19:56:36 -05002827 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002828 } else
2829 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002830 } else {
2831 /*
2832 * Unknown initiating command based on the response iotag.
2833 * This could be the case on the ELS ring because of
2834 * lpfc_els_abort().
2835 */
2836 if (pring->ringno != LPFC_ELS_RING) {
2837 /*
2838 * Ring <ringno> handler: unexpected completion IoTag
2839 * <IoTag>
2840 */
James Smarta257bf92009-04-06 18:48:10 -04002841 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002842 "0322 Ring %d handler: "
2843 "unexpected completion IoTag x%x "
2844 "Data: x%x x%x x%x x%x\n",
2845 pring->ringno,
2846 saveq->iocb.ulpIoTag,
2847 saveq->iocb.ulpStatus,
2848 saveq->iocb.un.ulpWord[4],
2849 saveq->iocb.ulpCommand,
2850 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002851 }
2852 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002853
dea31012005-04-17 16:05:31 -05002854 return rc;
2855}
2856
James Smarte59058c2008-08-24 21:49:00 -04002857/**
James Smart3621a712009-04-06 18:47:14 -04002858 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002859 * @phba: Pointer to HBA context object.
2860 * @pring: Pointer to driver SLI ring object.
2861 *
2862 * This function is called from the iocb ring event handlers when
2863 * put pointer is ahead of the get pointer for a ring. This function signal
2864 * an error attention condition to the worker thread and the worker
2865 * thread will transition the HBA to offline state.
2866 **/
James Smart2e0fef82007-06-17 19:56:36 -05002867static void
2868lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002869{
James Smart34b02dc2008-08-24 21:49:55 -04002870 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002871 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002872 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002873 * rsp ring <portRspMax>
2874 */
2875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002876 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002877 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002878 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James Smart7e56aa22012-08-03 12:35:34 -04002879 pring->sli.sli3.numRiocb);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002880
James Smart2e0fef82007-06-17 19:56:36 -05002881 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002882
2883 /*
2884 * All error attention handlers are posted to
2885 * worker thread
2886 */
2887 phba->work_ha |= HA_ERATT;
2888 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002889
James Smart5e9d9b82008-06-14 22:52:53 -04002890 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002891
2892 return;
2893}
2894
James Smarte59058c2008-08-24 21:49:00 -04002895/**
James Smart3621a712009-04-06 18:47:14 -04002896 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002897 * @ptr: Pointer to address of HBA context object.
2898 *
2899 * This function is invoked by the Error Attention polling timer when the
2900 * timer times out. It will check the SLI Error Attention register for
2901 * possible attention events. If so, it will post an Error Attention event
2902 * and wake up worker thread to process it. Otherwise, it will set up the
2903 * Error Attention polling timer for the next poll.
2904 **/
2905void lpfc_poll_eratt(unsigned long ptr)
2906{
2907 struct lpfc_hba *phba;
James Smarteb016562014-09-03 12:58:06 -04002908 uint32_t eratt = 0;
James Smartaa6fbb72012-08-03 12:36:03 -04002909 uint64_t sli_intr, cnt;
James Smart93996272008-08-24 21:50:30 -04002910
2911 phba = (struct lpfc_hba *)ptr;
2912
James Smartaa6fbb72012-08-03 12:36:03 -04002913 /* Here we will also keep track of interrupts per sec of the hba */
2914 sli_intr = phba->sli.slistat.sli_intr;
2915
2916 if (phba->sli.slistat.sli_prev_intr > sli_intr)
2917 cnt = (((uint64_t)(-1) - phba->sli.slistat.sli_prev_intr) +
2918 sli_intr);
2919 else
2920 cnt = (sli_intr - phba->sli.slistat.sli_prev_intr);
2921
2922 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
James Smarteb016562014-09-03 12:58:06 -04002923 do_div(cnt, LPFC_ERATT_POLL_INTERVAL);
James Smartaa6fbb72012-08-03 12:36:03 -04002924 phba->sli.slistat.sli_ips = cnt;
2925
2926 phba->sli.slistat.sli_prev_intr = sli_intr;
2927
James Smart93996272008-08-24 21:50:30 -04002928 /* Check chip HA register for error event */
2929 eratt = lpfc_sli_check_eratt(phba);
2930
2931 if (eratt)
2932 /* Tell the worker thread there is work to do */
2933 lpfc_worker_wake_up(phba);
2934 else
2935 /* Restart the timer for next eratt poll */
James Smart256ec0d2013-04-17 20:14:58 -04002936 mod_timer(&phba->eratt_poll,
2937 jiffies +
2938 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
James Smart93996272008-08-24 21:50:30 -04002939 return;
2940}
2941
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002942
James Smarte59058c2008-08-24 21:49:00 -04002943/**
James Smart3621a712009-04-06 18:47:14 -04002944 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002945 * @phba: Pointer to HBA context object.
2946 * @pring: Pointer to driver SLI ring object.
2947 * @mask: Host attention register mask for this ring.
2948 *
2949 * This function is called from the interrupt context when there is a ring
2950 * event for the fcp ring. The caller does not hold any lock.
2951 * The function processes each response iocb in the response ring until it
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002952 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
James Smarte59058c2008-08-24 21:49:00 -04002953 * LE bit set. The function will call the completion handler of the command iocb
2954 * if the response iocb indicates a completion for a command iocb or it is
2955 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2956 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002957 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04002958 * to check it explicitly.
2959 */
2960int
James Smart2e0fef82007-06-17 19:56:36 -05002961lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2962 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002963{
James Smart34b02dc2008-08-24 21:49:55 -04002964 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002965 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002966 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002967 struct lpfc_iocbq *cmdiocbq = NULL;
2968 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002969 uint32_t status;
2970 uint32_t portRspPut, portRspMax;
2971 int rc = 1;
2972 lpfc_iocb_type type;
2973 unsigned long iflag;
2974 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002975
James Smart2e0fef82007-06-17 19:56:36 -05002976 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002977 pring->stats.iocb_event++;
2978
dea31012005-04-17 16:05:31 -05002979 /*
2980 * The next available response entry should never exceed the maximum
2981 * entries. If it does, treat it as an adapter hardware error.
2982 */
James Smart7e56aa22012-08-03 12:35:34 -04002983 portRspMax = pring->sli.sli3.numRiocb;
dea31012005-04-17 16:05:31 -05002984 portRspPut = le32_to_cpu(pgp->rspPutInx);
2985 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002986 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002987 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002988 return 1;
2989 }
James Smart45ed1192009-10-02 15:17:02 -04002990 if (phba->fcp_ring_in_use) {
2991 spin_unlock_irqrestore(&phba->hbalock, iflag);
2992 return 1;
2993 } else
2994 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05002995
2996 rmb();
James Smart7e56aa22012-08-03 12:35:34 -04002997 while (pring->sli.sli3.rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002998 /*
2999 * Fetch an entry off the ring and copy it into a local data
3000 * structure. The copy involves a byte-swap since the
3001 * network byte order and pci byte orders are different.
3002 */
James Smarted957682007-06-17 19:56:37 -05003003 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05003004 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003005
James Smart7e56aa22012-08-03 12:35:34 -04003006 if (++pring->sli.sli3.rspidx >= portRspMax)
3007 pring->sli.sli3.rspidx = 0;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05003008
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003009 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
3010 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05003011 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05003012 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04003013 irsp = &rspiocbq.iocb;
3014
dea31012005-04-17 16:05:31 -05003015 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
3016 pring->stats.iocb_rsp++;
3017 rsp_cmpl++;
3018
3019 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05003020 /*
3021 * If resource errors reported from HBA, reduce
3022 * queuedepths of the SCSI device.
3023 */
3024 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
James Smarte3d2b802012-08-14 14:25:43 -04003025 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3026 IOERR_NO_RESOURCES)) {
James Smart92d7f7b2007-06-17 19:56:38 -05003027 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003028 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05003029 spin_lock_irqsave(&phba->hbalock, iflag);
3030 }
3031
dea31012005-04-17 16:05:31 -05003032 /* Rsp ring <ringno> error: IOCB */
3033 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003034 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05003035 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003036 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05003037 irsp->un.ulpWord[0],
3038 irsp->un.ulpWord[1],
3039 irsp->un.ulpWord[2],
3040 irsp->un.ulpWord[3],
3041 irsp->un.ulpWord[4],
3042 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04003043 *(uint32_t *)&irsp->un1,
3044 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05003045 }
3046
3047 switch (type) {
3048 case LPFC_ABORT_IOCB:
3049 case LPFC_SOL_IOCB:
3050 /*
3051 * Idle exchange closed via ABTS from port. No iocb
3052 * resources need to be recovered.
3053 */
3054 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04003055 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003056 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04003057 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05003058 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04003059 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05003060 break;
3061 }
3062
James Bottomley604a3e32005-10-29 10:28:33 -05003063 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
3064 &rspiocbq);
James Smart0f65ff62010-02-26 14:14:23 -05003065 if (unlikely(!cmdiocbq))
3066 break;
3067 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
3068 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
3069 if (cmdiocbq->iocb_cmpl) {
3070 spin_unlock_irqrestore(&phba->hbalock, iflag);
3071 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
3072 &rspiocbq);
3073 spin_lock_irqsave(&phba->hbalock, iflag);
3074 }
dea31012005-04-17 16:05:31 -05003075 break;
James Smarta4bc3372006-12-02 13:34:16 -05003076 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05003077 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05003078 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05003079 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05003080 break;
dea31012005-04-17 16:05:31 -05003081 default:
3082 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3083 char adaptermsg[LPFC_MAX_ADPTMSG];
3084 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3085 memcpy(&adaptermsg[0], (uint8_t *) irsp,
3086 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07003087 dev_warn(&((phba->pcidev)->dev),
3088 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05003089 phba->brd_no, adaptermsg);
3090 } else {
3091 /* Unknown IOCB command */
3092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003093 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05003094 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003095 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05003096 irsp->ulpStatus,
3097 irsp->ulpIoTag,
3098 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05003099 }
3100 break;
3101 }
3102
3103 /*
3104 * The response IOCB has been processed. Update the ring
3105 * pointer in SLIM. If the port response put pointer has not
3106 * been updated, sync the pgp->rspPutInx and fetch the new port
3107 * response put pointer.
3108 */
James Smart7e56aa22012-08-03 12:35:34 -04003109 writel(pring->sli.sli3.rspidx,
3110 &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003111
James Smart7e56aa22012-08-03 12:35:34 -04003112 if (pring->sli.sli3.rspidx == portRspPut)
dea31012005-04-17 16:05:31 -05003113 portRspPut = le32_to_cpu(pgp->rspPutInx);
3114 }
3115
3116 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3117 pring->stats.iocb_rsp_full++;
3118 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3119 writel(status, phba->CAregaddr);
3120 readl(phba->CAregaddr);
3121 }
3122 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3123 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3124 pring->stats.iocb_cmd_empty++;
3125
3126 /* Force update of the local copy of cmdGetInx */
James Smart7e56aa22012-08-03 12:35:34 -04003127 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05003128 lpfc_sli_resume_iocb(phba, pring);
3129
3130 if ((pring->lpfc_sli_cmd_available))
3131 (pring->lpfc_sli_cmd_available) (phba, pring);
3132
3133 }
3134
James Smart45ed1192009-10-02 15:17:02 -04003135 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003136 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003137 return rc;
3138}
3139
James Smarte59058c2008-08-24 21:49:00 -04003140/**
James Smart3772a992009-05-22 14:50:54 -04003141 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3142 * @phba: Pointer to HBA context object.
3143 * @pring: Pointer to driver SLI ring object.
3144 * @rspiocbp: Pointer to driver response IOCB object.
3145 *
3146 * This function is called from the worker thread when there is a slow-path
3147 * response IOCB to process. This function chains all the response iocbs until
3148 * seeing the iocb with the LE bit set. The function will call
3149 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3150 * completion of a command iocb. The function will call the
3151 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3152 * The function frees the resources or calls the completion handler if this
3153 * iocb is an abort completion. The function returns NULL when the response
3154 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3155 * this function shall chain the iocb on to the iocb_continueq and return the
3156 * response iocb passed in.
3157 **/
3158static struct lpfc_iocbq *
3159lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3160 struct lpfc_iocbq *rspiocbp)
3161{
3162 struct lpfc_iocbq *saveq;
3163 struct lpfc_iocbq *cmdiocbp;
3164 struct lpfc_iocbq *next_iocb;
3165 IOCB_t *irsp = NULL;
3166 uint32_t free_saveq;
3167 uint8_t iocb_cmd_type;
3168 lpfc_iocb_type type;
3169 unsigned long iflag;
3170 int rc;
3171
3172 spin_lock_irqsave(&phba->hbalock, iflag);
3173 /* First add the response iocb to the countinueq list */
3174 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3175 pring->iocb_continueq_cnt++;
3176
Justin P. Mattock70f23fd2011-05-10 10:16:21 +02003177 /* Now, determine whether the list is completed for processing */
James Smart3772a992009-05-22 14:50:54 -04003178 irsp = &rspiocbp->iocb;
3179 if (irsp->ulpLe) {
3180 /*
3181 * By default, the driver expects to free all resources
3182 * associated with this iocb completion.
3183 */
3184 free_saveq = 1;
3185 saveq = list_get_first(&pring->iocb_continueq,
3186 struct lpfc_iocbq, list);
3187 irsp = &(saveq->iocb);
3188 list_del_init(&pring->iocb_continueq);
3189 pring->iocb_continueq_cnt = 0;
3190
3191 pring->stats.iocb_rsp++;
3192
3193 /*
3194 * If resource errors reported from HBA, reduce
3195 * queuedepths of the SCSI device.
3196 */
3197 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
James Smarte3d2b802012-08-14 14:25:43 -04003198 ((irsp->un.ulpWord[4] & IOERR_PARAM_MASK) ==
3199 IOERR_NO_RESOURCES)) {
James Smart3772a992009-05-22 14:50:54 -04003200 spin_unlock_irqrestore(&phba->hbalock, iflag);
3201 phba->lpfc_rampdown_queue_depth(phba);
3202 spin_lock_irqsave(&phba->hbalock, iflag);
3203 }
3204
3205 if (irsp->ulpStatus) {
3206 /* Rsp ring <ringno> error: IOCB */
3207 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3208 "0328 Rsp Ring %d error: "
3209 "IOCB Data: "
3210 "x%x x%x x%x x%x "
3211 "x%x x%x x%x x%x "
3212 "x%x x%x x%x x%x "
3213 "x%x x%x x%x x%x\n",
3214 pring->ringno,
3215 irsp->un.ulpWord[0],
3216 irsp->un.ulpWord[1],
3217 irsp->un.ulpWord[2],
3218 irsp->un.ulpWord[3],
3219 irsp->un.ulpWord[4],
3220 irsp->un.ulpWord[5],
3221 *(((uint32_t *) irsp) + 6),
3222 *(((uint32_t *) irsp) + 7),
3223 *(((uint32_t *) irsp) + 8),
3224 *(((uint32_t *) irsp) + 9),
3225 *(((uint32_t *) irsp) + 10),
3226 *(((uint32_t *) irsp) + 11),
3227 *(((uint32_t *) irsp) + 12),
3228 *(((uint32_t *) irsp) + 13),
3229 *(((uint32_t *) irsp) + 14),
3230 *(((uint32_t *) irsp) + 15));
3231 }
3232
3233 /*
3234 * Fetch the IOCB command type and call the correct completion
3235 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3236 * get freed back to the lpfc_iocb_list by the discovery
3237 * kernel thread.
3238 */
3239 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3240 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3241 switch (type) {
3242 case LPFC_SOL_IOCB:
3243 spin_unlock_irqrestore(&phba->hbalock, iflag);
3244 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3245 spin_lock_irqsave(&phba->hbalock, iflag);
3246 break;
3247
3248 case LPFC_UNSOL_IOCB:
3249 spin_unlock_irqrestore(&phba->hbalock, iflag);
3250 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3251 spin_lock_irqsave(&phba->hbalock, iflag);
3252 if (!rc)
3253 free_saveq = 0;
3254 break;
3255
3256 case LPFC_ABORT_IOCB:
3257 cmdiocbp = NULL;
3258 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3259 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3260 saveq);
3261 if (cmdiocbp) {
3262 /* Call the specified completion routine */
3263 if (cmdiocbp->iocb_cmpl) {
3264 spin_unlock_irqrestore(&phba->hbalock,
3265 iflag);
3266 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3267 saveq);
3268 spin_lock_irqsave(&phba->hbalock,
3269 iflag);
3270 } else
3271 __lpfc_sli_release_iocbq(phba,
3272 cmdiocbp);
3273 }
3274 break;
3275
3276 case LPFC_UNKNOWN_IOCB:
3277 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3278 char adaptermsg[LPFC_MAX_ADPTMSG];
3279 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3280 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3281 MAX_MSG_DATA);
3282 dev_warn(&((phba->pcidev)->dev),
3283 "lpfc%d: %s\n",
3284 phba->brd_no, adaptermsg);
3285 } else {
3286 /* Unknown IOCB command */
3287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3288 "0335 Unknown IOCB "
3289 "command Data: x%x "
3290 "x%x x%x x%x\n",
3291 irsp->ulpCommand,
3292 irsp->ulpStatus,
3293 irsp->ulpIoTag,
3294 irsp->ulpContext);
3295 }
3296 break;
3297 }
3298
3299 if (free_saveq) {
3300 list_for_each_entry_safe(rspiocbp, next_iocb,
3301 &saveq->list, list) {
James Smart61f35bf2013-05-31 17:03:48 -04003302 list_del_init(&rspiocbp->list);
James Smart3772a992009-05-22 14:50:54 -04003303 __lpfc_sli_release_iocbq(phba, rspiocbp);
3304 }
3305 __lpfc_sli_release_iocbq(phba, saveq);
3306 }
3307 rspiocbp = NULL;
3308 }
3309 spin_unlock_irqrestore(&phba->hbalock, iflag);
3310 return rspiocbp;
3311}
3312
3313/**
3314 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04003315 * @phba: Pointer to HBA context object.
3316 * @pring: Pointer to driver SLI ring object.
3317 * @mask: Host attention register mask for this ring.
3318 *
James Smart3772a992009-05-22 14:50:54 -04003319 * This routine wraps the actual slow_ring event process routine from the
3320 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04003321 **/
James Smart3772a992009-05-22 14:50:54 -04003322void
James Smart2e0fef82007-06-17 19:56:36 -05003323lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3324 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05003325{
James Smart3772a992009-05-22 14:50:54 -04003326 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3327}
3328
3329/**
3330 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3331 * @phba: Pointer to HBA context object.
3332 * @pring: Pointer to driver SLI ring object.
3333 * @mask: Host attention register mask for this ring.
3334 *
3335 * This function is called from the worker thread when there is a ring event
3336 * for non-fcp rings. The caller does not hold any lock. The function will
3337 * remove each response iocb in the response ring and calls the handle
3338 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3339 **/
3340static void
3341lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3342 struct lpfc_sli_ring *pring, uint32_t mask)
3343{
James Smart34b02dc2008-08-24 21:49:55 -04003344 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05003345 IOCB_t *entry;
3346 IOCB_t *irsp = NULL;
3347 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05003348 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05003349 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04003350 uint32_t status;
dea31012005-04-17 16:05:31 -05003351
James Smart34b02dc2008-08-24 21:49:55 -04003352 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05003353 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003354 pring->stats.iocb_event++;
3355
dea31012005-04-17 16:05:31 -05003356 /*
3357 * The next available response entry should never exceed the maximum
3358 * entries. If it does, treat it as an adapter hardware error.
3359 */
James Smart7e56aa22012-08-03 12:35:34 -04003360 portRspMax = pring->sli.sli3.numRiocb;
dea31012005-04-17 16:05:31 -05003361 portRspPut = le32_to_cpu(pgp->rspPutInx);
3362 if (portRspPut >= portRspMax) {
3363 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003364 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05003365 * rsp ring <portRspMax>
3366 */
James Smarted957682007-06-17 19:56:37 -05003367 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003368 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003369 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04003370 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05003371
James Smart2e0fef82007-06-17 19:56:36 -05003372 phba->link_state = LPFC_HBA_ERROR;
3373 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003374
3375 phba->work_hs = HS_FFER3;
3376 lpfc_handle_eratt(phba);
3377
James Smart3772a992009-05-22 14:50:54 -04003378 return;
dea31012005-04-17 16:05:31 -05003379 }
3380
3381 rmb();
James Smart7e56aa22012-08-03 12:35:34 -04003382 while (pring->sli.sli3.rspidx != portRspPut) {
dea31012005-04-17 16:05:31 -05003383 /*
3384 * Build a completion list and call the appropriate handler.
3385 * The process is to get the next available response iocb, get
3386 * a free iocb from the list, copy the response data into the
3387 * free iocb, insert to the continuation list, and update the
3388 * next response index to slim. This process makes response
3389 * iocb's in the ring available to DMA as fast as possible but
3390 * pays a penalty for a copy operation. Since the iocb is
3391 * only 32 bytes, this penalty is considered small relative to
3392 * the PCI reads for register values and a slim write. When
3393 * the ulpLe field is set, the entire Command has been
3394 * received.
3395 */
James Smarted957682007-06-17 19:56:37 -05003396 entry = lpfc_resp_iocb(phba, pring);
3397
James Smart858c9f62007-06-17 19:56:39 -05003398 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05003399 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05003400 if (rspiocbp == NULL) {
3401 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07003402 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05003403 break;
3404 }
3405
James Smarted957682007-06-17 19:56:37 -05003406 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3407 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05003408 irsp = &rspiocbp->iocb;
3409
James Smart7e56aa22012-08-03 12:35:34 -04003410 if (++pring->sli.sli3.rspidx >= portRspMax)
3411 pring->sli.sli3.rspidx = 0;
dea31012005-04-17 16:05:31 -05003412
James Smarta58cbd52007-08-02 11:09:43 -04003413 if (pring->ringno == LPFC_ELS_RING) {
3414 lpfc_debugfs_slow_ring_trc(phba,
3415 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3416 *(((uint32_t *) irsp) + 4),
3417 *(((uint32_t *) irsp) + 6),
3418 *(((uint32_t *) irsp) + 7));
3419 }
3420
James Smart7e56aa22012-08-03 12:35:34 -04003421 writel(pring->sli.sli3.rspidx,
3422 &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003423
James Smart3772a992009-05-22 14:50:54 -04003424 spin_unlock_irqrestore(&phba->hbalock, iflag);
3425 /* Handle the response IOCB */
3426 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3427 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003428
3429 /*
3430 * If the port response put pointer has not been updated, sync
3431 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3432 * response put pointer.
3433 */
James Smart7e56aa22012-08-03 12:35:34 -04003434 if (pring->sli.sli3.rspidx == portRspPut) {
dea31012005-04-17 16:05:31 -05003435 portRspPut = le32_to_cpu(pgp->rspPutInx);
3436 }
James Smart7e56aa22012-08-03 12:35:34 -04003437 } /* while (pring->sli.sli3.rspidx != portRspPut) */
dea31012005-04-17 16:05:31 -05003438
James Smart92d7f7b2007-06-17 19:56:38 -05003439 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05003440 /* At least one response entry has been freed */
3441 pring->stats.iocb_rsp_full++;
3442 /* SET RxRE_RSP in Chip Att register */
3443 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3444 writel(status, phba->CAregaddr);
3445 readl(phba->CAregaddr); /* flush */
3446 }
3447 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3448 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3449 pring->stats.iocb_cmd_empty++;
3450
3451 /* Force update of the local copy of cmdGetInx */
James Smart7e56aa22012-08-03 12:35:34 -04003452 pring->sli.sli3.local_getidx = le32_to_cpu(pgp->cmdGetInx);
dea31012005-04-17 16:05:31 -05003453 lpfc_sli_resume_iocb(phba, pring);
3454
3455 if ((pring->lpfc_sli_cmd_available))
3456 (pring->lpfc_sli_cmd_available) (phba, pring);
3457
3458 }
3459
James Smart2e0fef82007-06-17 19:56:36 -05003460 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003461 return;
dea31012005-04-17 16:05:31 -05003462}
3463
James Smarte59058c2008-08-24 21:49:00 -04003464/**
James Smart4f774512009-05-22 14:52:35 -04003465 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3466 * @phba: Pointer to HBA context object.
3467 * @pring: Pointer to driver SLI ring object.
3468 * @mask: Host attention register mask for this ring.
3469 *
3470 * This function is called from the worker thread when there is a pending
3471 * ELS response iocb on the driver internal slow-path response iocb worker
3472 * queue. The caller does not hold any lock. The function will remove each
3473 * response iocb from the response worker queue and calls the handle
3474 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3475 **/
3476static void
3477lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3478 struct lpfc_sli_ring *pring, uint32_t mask)
3479{
3480 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04003481 struct hbq_dmabuf *dmabuf;
3482 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04003483 unsigned long iflag;
3484
James Smart45ed1192009-10-02 15:17:02 -04003485 spin_lock_irqsave(&phba->hbalock, iflag);
3486 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3487 spin_unlock_irqrestore(&phba->hbalock, iflag);
3488 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04003489 /* Get the response iocb from the head of work queue */
3490 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04003491 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04003492 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04003493 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04003494
3495 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3496 case CQE_CODE_COMPL_WQE:
3497 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3498 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04003499 /* Translate ELS WCQE to response IOCBQ */
3500 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3501 irspiocbq);
3502 if (irspiocbq)
3503 lpfc_sli_sp_handle_rspiocb(phba, pring,
3504 irspiocbq);
James Smart4d9ab992009-10-02 15:16:39 -04003505 break;
3506 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -04003507 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -04003508 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3509 cq_event);
3510 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3511 break;
3512 default:
3513 break;
3514 }
James Smart4f774512009-05-22 14:52:35 -04003515 }
3516}
3517
3518/**
James Smart3621a712009-04-06 18:47:14 -04003519 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003520 * @phba: Pointer to HBA context object.
3521 * @pring: Pointer to driver SLI ring object.
3522 *
3523 * This function aborts all iocbs in the given ring and frees all the iocb
3524 * objects in txq. This function issues an abort iocb for all the iocb commands
3525 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3526 * the return of this function. The caller is not required to hold any locks.
3527 **/
James Smart2e0fef82007-06-17 19:56:36 -05003528void
dea31012005-04-17 16:05:31 -05003529lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3530{
James Smart2534ba72007-04-25 09:52:20 -04003531 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003532 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003533
James Smart92d7f7b2007-06-17 19:56:38 -05003534 if (pring->ringno == LPFC_ELS_RING) {
3535 lpfc_fabric_abort_hba(phba);
3536 }
3537
dea31012005-04-17 16:05:31 -05003538 /* Error everything on txq and txcmplq
3539 * First do the txq.
3540 */
James Smartdb55fba2014-04-04 13:52:02 -04003541 if (phba->sli_rev >= LPFC_SLI_REV4) {
3542 spin_lock_irq(&pring->ring_lock);
3543 list_splice_init(&pring->txq, &completions);
3544 pring->txq_cnt = 0;
3545 spin_unlock_irq(&pring->ring_lock);
dea31012005-04-17 16:05:31 -05003546
James Smartdb55fba2014-04-04 13:52:02 -04003547 spin_lock_irq(&phba->hbalock);
3548 /* Next issue ABTS for everything on the txcmplq */
3549 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3550 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3551 spin_unlock_irq(&phba->hbalock);
3552 } else {
3553 spin_lock_irq(&phba->hbalock);
3554 list_splice_init(&pring->txq, &completions);
3555 pring->txq_cnt = 0;
James Smart2534ba72007-04-25 09:52:20 -04003556
James Smartdb55fba2014-04-04 13:52:02 -04003557 /* Next issue ABTS for everything on the txcmplq */
3558 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3559 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3560 spin_unlock_irq(&phba->hbalock);
3561 }
James Smart2534ba72007-04-25 09:52:20 -04003562
James Smarta257bf92009-04-06 18:48:10 -04003563 /* Cancel all the IOCBs from the completions list */
3564 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3565 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003566}
3567
James Smarte59058c2008-08-24 21:49:00 -04003568/**
James Smartdb55fba2014-04-04 13:52:02 -04003569 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3570 * @phba: Pointer to HBA context object.
3571 * @pring: Pointer to driver SLI ring object.
3572 *
3573 * This function aborts all iocbs in FCP rings and frees all the iocb
3574 * objects in txq. This function issues an abort iocb for all the iocb commands
3575 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3576 * the return of this function. The caller is not required to hold any locks.
3577 **/
3578void
3579lpfc_sli_abort_fcp_rings(struct lpfc_hba *phba)
3580{
3581 struct lpfc_sli *psli = &phba->sli;
3582 struct lpfc_sli_ring *pring;
3583 uint32_t i;
3584
3585 /* Look on all the FCP Rings for the iotag */
3586 if (phba->sli_rev >= LPFC_SLI_REV4) {
3587 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3588 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
3589 lpfc_sli_abort_iocb_ring(phba, pring);
3590 }
3591 } else {
3592 pring = &psli->ring[psli->fcp_ring];
3593 lpfc_sli_abort_iocb_ring(phba, pring);
3594 }
3595}
3596
3597
3598/**
James Smart3621a712009-04-06 18:47:14 -04003599 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003600 * @phba: Pointer to HBA context object.
3601 *
3602 * This function flushes all iocbs in the fcp ring and frees all the iocb
3603 * objects in txq and txcmplq. This function will not issue abort iocbs
3604 * for all the iocb commands in txcmplq, they will just be returned with
3605 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3606 * slot has been permanently disabled.
3607 **/
3608void
3609lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3610{
3611 LIST_HEAD(txq);
3612 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003613 struct lpfc_sli *psli = &phba->sli;
3614 struct lpfc_sli_ring *pring;
James Smartdb55fba2014-04-04 13:52:02 -04003615 uint32_t i;
James Smarta8e497d2008-08-24 21:50:11 -04003616
3617 spin_lock_irq(&phba->hbalock);
James Smart4f2e66c2012-05-09 21:17:07 -04003618 /* Indicate the I/O queues are flushed */
3619 phba->hba_flag |= HBA_FCP_IOQ_FLUSH;
James Smarta8e497d2008-08-24 21:50:11 -04003620 spin_unlock_irq(&phba->hbalock);
3621
James Smartdb55fba2014-04-04 13:52:02 -04003622 /* Look on all the FCP Rings for the iotag */
3623 if (phba->sli_rev >= LPFC_SLI_REV4) {
3624 for (i = 0; i < phba->cfg_fcp_io_channel; i++) {
3625 pring = &psli->ring[i + MAX_SLI3_CONFIGURED_RINGS];
James Smarta8e497d2008-08-24 21:50:11 -04003626
James Smartdb55fba2014-04-04 13:52:02 -04003627 spin_lock_irq(&pring->ring_lock);
3628 /* Retrieve everything on txq */
3629 list_splice_init(&pring->txq, &txq);
3630 /* Retrieve everything on the txcmplq */
3631 list_splice_init(&pring->txcmplq, &txcmplq);
3632 pring->txq_cnt = 0;
3633 pring->txcmplq_cnt = 0;
3634 spin_unlock_irq(&pring->ring_lock);
3635
3636 /* Flush the txq */
3637 lpfc_sli_cancel_iocbs(phba, &txq,
3638 IOSTAT_LOCAL_REJECT,
3639 IOERR_SLI_DOWN);
3640 /* Flush the txcmpq */
3641 lpfc_sli_cancel_iocbs(phba, &txcmplq,
3642 IOSTAT_LOCAL_REJECT,
3643 IOERR_SLI_DOWN);
3644 }
3645 } else {
3646 pring = &psli->ring[psli->fcp_ring];
3647
3648 spin_lock_irq(&phba->hbalock);
3649 /* Retrieve everything on txq */
3650 list_splice_init(&pring->txq, &txq);
3651 /* Retrieve everything on the txcmplq */
3652 list_splice_init(&pring->txcmplq, &txcmplq);
3653 pring->txq_cnt = 0;
3654 pring->txcmplq_cnt = 0;
3655 spin_unlock_irq(&phba->hbalock);
3656
3657 /* Flush the txq */
3658 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3659 IOERR_SLI_DOWN);
3660 /* Flush the txcmpq */
3661 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3662 IOERR_SLI_DOWN);
3663 }
James Smarta8e497d2008-08-24 21:50:11 -04003664}
3665
3666/**
James Smart3772a992009-05-22 14:50:54 -04003667 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003668 * @phba: Pointer to HBA context object.
3669 * @mask: Bit mask to be checked.
3670 *
3671 * This function reads the host status register and compares
3672 * with the provided bit mask to check if HBA completed
3673 * the restart. This function will wait in a loop for the
3674 * HBA to complete restart. If the HBA does not restart within
3675 * 15 iterations, the function will reset the HBA again. The
3676 * function returns 1 when HBA fail to restart otherwise returns
3677 * zero.
3678 **/
James Smart3772a992009-05-22 14:50:54 -04003679static int
3680lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003681{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003682 uint32_t status;
3683 int i = 0;
3684 int retval = 0;
dea31012005-04-17 16:05:31 -05003685
Jamie Wellnitz41415862006-02-28 19:25:27 -05003686 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003687 if (lpfc_readl(phba->HSregaddr, &status))
3688 return 1;
dea31012005-04-17 16:05:31 -05003689
Jamie Wellnitz41415862006-02-28 19:25:27 -05003690 /*
3691 * Check status register every 100ms for 5 retries, then every
3692 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3693 * every 2.5 sec for 4.
3694 * Break our of the loop if errors occurred during init.
3695 */
3696 while (((status & mask) != mask) &&
3697 !(status & HS_FFERM) &&
3698 i++ < 20) {
dea31012005-04-17 16:05:31 -05003699
Jamie Wellnitz41415862006-02-28 19:25:27 -05003700 if (i <= 5)
3701 msleep(10);
3702 else if (i <= 10)
3703 msleep(500);
3704 else
3705 msleep(2500);
dea31012005-04-17 16:05:31 -05003706
Jamie Wellnitz41415862006-02-28 19:25:27 -05003707 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003708 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003709 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003710 lpfc_sli_brdrestart(phba);
3711 }
3712 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003713 if (lpfc_readl(phba->HSregaddr, &status)) {
3714 retval = 1;
3715 break;
3716 }
dea31012005-04-17 16:05:31 -05003717 }
dea31012005-04-17 16:05:31 -05003718
Jamie Wellnitz41415862006-02-28 19:25:27 -05003719 /* Check to see if any errors occurred during init */
3720 if ((status & HS_FFERM) || (i >= 20)) {
James Smarte40a02c2010-02-26 14:13:54 -05003721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3722 "2751 Adapter failed to restart, "
3723 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3724 status,
3725 readl(phba->MBslimaddr + 0xa8),
3726 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003727 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003728 retval = 1;
3729 }
dea31012005-04-17 16:05:31 -05003730
Jamie Wellnitz41415862006-02-28 19:25:27 -05003731 return retval;
dea31012005-04-17 16:05:31 -05003732}
3733
James Smartda0436e2009-05-22 14:51:39 -04003734/**
3735 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3736 * @phba: Pointer to HBA context object.
3737 * @mask: Bit mask to be checked.
3738 *
3739 * This function checks the host status register to check if HBA is
3740 * ready. This function will wait in a loop for the HBA to be ready
3741 * If the HBA is not ready , the function will will reset the HBA PCI
3742 * function again. The function returns 1 when HBA fail to be ready
3743 * otherwise returns zero.
3744 **/
3745static int
3746lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3747{
3748 uint32_t status;
3749 int retval = 0;
3750
3751 /* Read the HBA Host Status Register */
3752 status = lpfc_sli4_post_status_check(phba);
3753
3754 if (status) {
3755 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3756 lpfc_sli_brdrestart(phba);
3757 status = lpfc_sli4_post_status_check(phba);
3758 }
3759
3760 /* Check to see if any errors occurred during init */
3761 if (status) {
3762 phba->link_state = LPFC_HBA_ERROR;
3763 retval = 1;
3764 } else
3765 phba->sli4_hba.intr_enable = 0;
3766
3767 return retval;
3768}
3769
3770/**
3771 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3772 * @phba: Pointer to HBA context object.
3773 * @mask: Bit mask to be checked.
3774 *
3775 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3776 * from the API jump table function pointer from the lpfc_hba struct.
3777 **/
3778int
3779lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3780{
3781 return phba->lpfc_sli_brdready(phba, mask);
3782}
3783
James Smart92908312006-03-07 15:04:13 -05003784#define BARRIER_TEST_PATTERN (0xdeadbeef)
3785
James Smarte59058c2008-08-24 21:49:00 -04003786/**
James Smart3621a712009-04-06 18:47:14 -04003787 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003788 * @phba: Pointer to HBA context object.
3789 *
James Smart1b511972011-12-13 13:23:09 -05003790 * This function is called before resetting an HBA. This function is called
3791 * with hbalock held and requests HBA to quiesce DMAs before a reset.
James Smarte59058c2008-08-24 21:49:00 -04003792 **/
James Smart2e0fef82007-06-17 19:56:36 -05003793void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003794{
James Smart65a29c12006-07-06 15:50:50 -04003795 uint32_t __iomem *resp_buf;
3796 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003797 volatile uint32_t mbox;
James Smart9940b972011-03-11 16:06:12 -05003798 uint32_t hc_copy, ha_copy, resp_data;
James Smart92908312006-03-07 15:04:13 -05003799 int i;
3800 uint8_t hdrtype;
3801
3802 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3803 if (hdrtype != 0x80 ||
3804 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3805 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3806 return;
3807
3808 /*
3809 * Tell the other part of the chip to suspend temporarily all
3810 * its DMA activity.
3811 */
James Smart65a29c12006-07-06 15:50:50 -04003812 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003813
3814 /* Disable the error attention */
James Smart9940b972011-03-11 16:06:12 -05003815 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3816 return;
James Smart92908312006-03-07 15:04:13 -05003817 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3818 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003819 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003820
James Smart9940b972011-03-11 16:06:12 -05003821 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3822 return;
3823 if (ha_copy & HA_ERATT) {
James Smart92908312006-03-07 15:04:13 -05003824 /* Clear Chip error bit */
3825 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003826 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003827 }
3828
3829 mbox = 0;
3830 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3831 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3832
3833 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003834 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003835 writel(mbox, mbox_buf);
3836
James Smart9940b972011-03-11 16:06:12 -05003837 for (i = 0; i < 50; i++) {
3838 if (lpfc_readl((resp_buf + 1), &resp_data))
3839 return;
3840 if (resp_data != ~(BARRIER_TEST_PATTERN))
3841 mdelay(1);
3842 else
3843 break;
3844 }
3845 resp_data = 0;
3846 if (lpfc_readl((resp_buf + 1), &resp_data))
3847 return;
3848 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003849 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003850 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003851 goto restore_hc;
3852 else
3853 goto clear_errat;
3854 }
3855
3856 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
James Smart9940b972011-03-11 16:06:12 -05003857 resp_data = 0;
3858 for (i = 0; i < 500; i++) {
3859 if (lpfc_readl(resp_buf, &resp_data))
3860 return;
3861 if (resp_data != mbox)
3862 mdelay(1);
3863 else
3864 break;
3865 }
James Smart92908312006-03-07 15:04:13 -05003866
3867clear_errat:
3868
James Smart9940b972011-03-11 16:06:12 -05003869 while (++i < 500) {
3870 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3871 return;
3872 if (!(ha_copy & HA_ERATT))
3873 mdelay(1);
3874 else
3875 break;
3876 }
James Smart92908312006-03-07 15:04:13 -05003877
3878 if (readl(phba->HAregaddr) & HA_ERATT) {
3879 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003880 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003881 }
3882
3883restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003884 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003885 writel(hc_copy, phba->HCregaddr);
3886 readl(phba->HCregaddr); /* flush */
3887}
3888
James Smarte59058c2008-08-24 21:49:00 -04003889/**
James Smart3621a712009-04-06 18:47:14 -04003890 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003891 * @phba: Pointer to HBA context object.
3892 *
3893 * This function issues a kill_board mailbox command and waits for
3894 * the error attention interrupt. This function is called for stopping
3895 * the firmware processing. The caller is not required to hold any
3896 * locks. This function calls lpfc_hba_down_post function to free
3897 * any pending commands after the kill. The function will return 1 when it
3898 * fails to kill the board else will return 0.
3899 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003900int
James Smart2e0fef82007-06-17 19:56:36 -05003901lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003902{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003903 struct lpfc_sli *psli;
3904 LPFC_MBOXQ_t *pmb;
3905 uint32_t status;
3906 uint32_t ha_copy;
3907 int retval;
3908 int i = 0;
3909
3910 psli = &phba->sli;
3911
3912 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003913 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003914 "0329 Kill HBA Data: x%x x%x\n",
3915 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003916
James Smart98c9ea52007-10-27 13:37:33 -04003917 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3918 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003919 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003920
3921 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003922 spin_lock_irq(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -05003923 if (lpfc_readl(phba->HCregaddr, &status)) {
3924 spin_unlock_irq(&phba->hbalock);
3925 mempool_free(pmb, phba->mbox_mem_pool);
3926 return 1;
3927 }
Jamie Wellnitz41415862006-02-28 19:25:27 -05003928 status &= ~HC_ERINT_ENA;
3929 writel(status, phba->HCregaddr);
3930 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003931 phba->link_flag |= LS_IGNORE_ERATT;
3932 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003933
3934 lpfc_kill_board(phba, pmb);
3935 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3936 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3937
3938 if (retval != MBX_SUCCESS) {
3939 if (retval != MBX_BUSY)
3940 mempool_free(pmb, phba->mbox_mem_pool);
James Smarte40a02c2010-02-26 14:13:54 -05003941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3942 "2752 KILL_BOARD command failed retval %d\n",
3943 retval);
James Smart2e0fef82007-06-17 19:56:36 -05003944 spin_lock_irq(&phba->hbalock);
3945 phba->link_flag &= ~LS_IGNORE_ERATT;
3946 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003947 return 1;
3948 }
3949
James Smartf4b4c682009-05-22 14:53:12 -04003950 spin_lock_irq(&phba->hbalock);
3951 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3952 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003953
Jamie Wellnitz41415862006-02-28 19:25:27 -05003954 mempool_free(pmb, phba->mbox_mem_pool);
3955
3956 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3957 * attention every 100ms for 3 seconds. If we don't get ERATT after
3958 * 3 seconds we still set HBA_ERROR state because the status of the
3959 * board is now undefined.
3960 */
James Smart9940b972011-03-11 16:06:12 -05003961 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3962 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003963 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3964 mdelay(100);
James Smart9940b972011-03-11 16:06:12 -05003965 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3966 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003967 }
3968
3969 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003970 if (ha_copy & HA_ERATT) {
3971 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003972 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003973 }
James Smart2e0fef82007-06-17 19:56:36 -05003974 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003975 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003976 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003977 phba->link_flag &= ~LS_IGNORE_ERATT;
3978 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003979
Jamie Wellnitz41415862006-02-28 19:25:27 -05003980 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003981 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003982
James Smart2e0fef82007-06-17 19:56:36 -05003983 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003984}
3985
James Smarte59058c2008-08-24 21:49:00 -04003986/**
James Smart3772a992009-05-22 14:50:54 -04003987 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003988 * @phba: Pointer to HBA context object.
3989 *
3990 * This function resets the HBA by writing HC_INITFF to the control
3991 * register. After the HBA resets, this function resets all the iocb ring
3992 * indices. This function disables PCI layer parity checking during
3993 * the reset.
3994 * This function returns 0 always.
3995 * The caller is not required to hold any locks.
3996 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003997int
James Smart2e0fef82007-06-17 19:56:36 -05003998lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003999{
4000 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05004001 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004002 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05004003 int i;
dea31012005-04-17 16:05:31 -05004004
Jamie Wellnitz41415862006-02-28 19:25:27 -05004005 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05004006
Jamie Wellnitz41415862006-02-28 19:25:27 -05004007 /* Reset HBA */
4008 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004009 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05004010 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05004011
4012 /* perform board reset */
4013 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04004014 phba->link_events = 0;
James Smart2e0fef82007-06-17 19:56:36 -05004015 phba->pport->fc_myDID = 0;
4016 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05004017
Jamie Wellnitz41415862006-02-28 19:25:27 -05004018 /* Turn off parity checking and serr during the physical reset */
4019 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4020 pci_write_config_word(phba->pcidev, PCI_COMMAND,
4021 (cfg_value &
4022 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4023
James Smart3772a992009-05-22 14:50:54 -04004024 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
4025
Jamie Wellnitz41415862006-02-28 19:25:27 -05004026 /* Now toggle INITFF bit in the Host Control Register */
4027 writel(HC_INITFF, phba->HCregaddr);
4028 mdelay(1);
4029 readl(phba->HCregaddr); /* flush */
4030 writel(0, phba->HCregaddr);
4031 readl(phba->HCregaddr); /* flush */
4032
4033 /* Restore PCI cmd register */
4034 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05004035
4036 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05004037 for (i = 0; i < psli->num_rings; i++) {
4038 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05004039 pring->flag = 0;
James Smart7e56aa22012-08-03 12:35:34 -04004040 pring->sli.sli3.rspidx = 0;
4041 pring->sli.sli3.next_cmdidx = 0;
4042 pring->sli.sli3.local_getidx = 0;
4043 pring->sli.sli3.cmdidx = 0;
dea31012005-04-17 16:05:31 -05004044 pring->missbufcnt = 0;
4045 }
dea31012005-04-17 16:05:31 -05004046
James Smart2e0fef82007-06-17 19:56:36 -05004047 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004048 return 0;
4049}
4050
James Smarte59058c2008-08-24 21:49:00 -04004051/**
James Smartda0436e2009-05-22 14:51:39 -04004052 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4053 * @phba: Pointer to HBA context object.
4054 *
4055 * This function resets a SLI4 HBA. This function disables PCI layer parity
4056 * checking during resets the device. The caller is not required to hold
4057 * any locks.
4058 *
4059 * This function returns 0 always.
4060 **/
4061int
4062lpfc_sli4_brdreset(struct lpfc_hba *phba)
4063{
4064 struct lpfc_sli *psli = &phba->sli;
4065 uint16_t cfg_value;
James Smart02936352014-04-04 13:52:12 -04004066 int rc = 0;
James Smartda0436e2009-05-22 14:51:39 -04004067
4068 /* Reset HBA */
4069 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smart02936352014-04-04 13:52:12 -04004070 "0295 Reset HBA Data: x%x x%x x%x\n",
4071 phba->pport->port_state, psli->sli_flag,
4072 phba->hba_flag);
James Smartda0436e2009-05-22 14:51:39 -04004073
4074 /* perform board reset */
4075 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04004076 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04004077 phba->pport->fc_myDID = 0;
4078 phba->pport->fc_prevDID = 0;
4079
James Smartda0436e2009-05-22 14:51:39 -04004080 spin_lock_irq(&phba->hbalock);
4081 psli->sli_flag &= ~(LPFC_PROCESS_LA);
4082 phba->fcf.fcf_flag = 0;
James Smartda0436e2009-05-22 14:51:39 -04004083 spin_unlock_irq(&phba->hbalock);
4084
James Smart02936352014-04-04 13:52:12 -04004085 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4086 if (phba->hba_flag & HBA_FW_DUMP_OP) {
4087 phba->hba_flag &= ~HBA_FW_DUMP_OP;
4088 return rc;
4089 }
4090
James Smartda0436e2009-05-22 14:51:39 -04004091 /* Now physically reset the device */
4092 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4093 "0389 Performing PCI function reset!\n");
James Smartbe858b62010-12-15 17:57:20 -05004094
4095 /* Turn off parity checking and serr during the physical reset */
4096 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
4097 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
4098 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
4099
James Smart88318812012-09-29 11:29:29 -04004100 /* Perform FCoE PCI function reset before freeing queue memory */
James Smart27b01b82012-05-09 21:19:44 -04004101 rc = lpfc_pci_function_reset(phba);
James Smart88318812012-09-29 11:29:29 -04004102 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04004103
James Smartbe858b62010-12-15 17:57:20 -05004104 /* Restore PCI cmd register */
4105 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
4106
James Smart27b01b82012-05-09 21:19:44 -04004107 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004108}
4109
4110/**
4111 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04004112 * @phba: Pointer to HBA context object.
4113 *
4114 * This function is called in the SLI initialization code path to
4115 * restart the HBA. The caller is not required to hold any lock.
4116 * This function writes MBX_RESTART mailbox command to the SLIM and
4117 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4118 * function to free any pending commands. The function enables
4119 * POST only during the first initialization. The function returns zero.
4120 * The function does not guarantee completion of MBX_RESTART mailbox
4121 * command before the return of this function.
4122 **/
James Smartda0436e2009-05-22 14:51:39 -04004123static int
4124lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004125{
4126 MAILBOX_t *mb;
4127 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004128 volatile uint32_t word0;
4129 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04004130 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004131
James Smart2e0fef82007-06-17 19:56:36 -05004132 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004133
James Smart0d878412009-10-02 15:16:56 -04004134 /* Take PCIe device Advanced Error Reporting (AER) state */
4135 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4136
Jamie Wellnitz41415862006-02-28 19:25:27 -05004137 psli = &phba->sli;
4138
4139 /* Restart HBA */
4140 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004141 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05004142 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004143
4144 word0 = 0;
4145 mb = (MAILBOX_t *) &word0;
4146 mb->mbxCommand = MBX_RESTART;
4147 mb->mbxHc = 1;
4148
James Smart92908312006-03-07 15:04:13 -05004149 lpfc_reset_barrier(phba);
4150
Jamie Wellnitz41415862006-02-28 19:25:27 -05004151 to_slim = phba->MBslimaddr;
4152 writel(*(uint32_t *) mb, to_slim);
4153 readl(to_slim); /* flush */
4154
4155 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05004156 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05004157 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05004158 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05004159 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04004160 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004161 writel(*(uint32_t *) mb, to_slim);
4162 readl(to_slim); /* flush */
4163
4164 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05004165 phba->pport->stopped = 0;
4166 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04004167 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05004168 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004169
James Smart64ba8812006-08-02 15:24:34 -04004170 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4171 psli->stats_start = get_seconds();
4172
James Smarteaf15d52008-12-04 22:39:29 -05004173 /* Give the INITFF and Post time to settle. */
4174 mdelay(100);
dea31012005-04-17 16:05:31 -05004175
James Smart0d878412009-10-02 15:16:56 -04004176 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4177 if (hba_aer_enabled)
4178 pci_disable_pcie_error_reporting(phba->pcidev);
4179
Jamie Wellnitz41415862006-02-28 19:25:27 -05004180 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05004181
4182 return 0;
4183}
4184
James Smarte59058c2008-08-24 21:49:00 -04004185/**
James Smartda0436e2009-05-22 14:51:39 -04004186 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4187 * @phba: Pointer to HBA context object.
4188 *
4189 * This function is called in the SLI initialization code path to restart
4190 * a SLI4 HBA. The caller is not required to hold any lock.
4191 * At the end of the function, it calls lpfc_hba_down_post function to
4192 * free any pending commands.
4193 **/
4194static int
4195lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4196{
4197 struct lpfc_sli *psli = &phba->sli;
James Smart75baf692010-06-08 18:31:21 -04004198 uint32_t hba_aer_enabled;
James Smart27b01b82012-05-09 21:19:44 -04004199 int rc;
James Smartda0436e2009-05-22 14:51:39 -04004200
4201 /* Restart HBA */
4202 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4203 "0296 Restart HBA Data: x%x x%x\n",
4204 phba->pport->port_state, psli->sli_flag);
4205
James Smart75baf692010-06-08 18:31:21 -04004206 /* Take PCIe device Advanced Error Reporting (AER) state */
4207 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4208
James Smart27b01b82012-05-09 21:19:44 -04004209 rc = lpfc_sli4_brdreset(phba);
James Smartda0436e2009-05-22 14:51:39 -04004210
4211 spin_lock_irq(&phba->hbalock);
4212 phba->pport->stopped = 0;
4213 phba->link_state = LPFC_INIT_START;
4214 phba->hba_flag = 0;
4215 spin_unlock_irq(&phba->hbalock);
4216
4217 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4218 psli->stats_start = get_seconds();
4219
James Smart75baf692010-06-08 18:31:21 -04004220 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4221 if (hba_aer_enabled)
4222 pci_disable_pcie_error_reporting(phba->pcidev);
4223
James Smartda0436e2009-05-22 14:51:39 -04004224 lpfc_hba_down_post(phba);
4225
James Smart27b01b82012-05-09 21:19:44 -04004226 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004227}
4228
4229/**
4230 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4231 * @phba: Pointer to HBA context object.
4232 *
4233 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4234 * API jump table function pointer from the lpfc_hba struct.
4235**/
4236int
4237lpfc_sli_brdrestart(struct lpfc_hba *phba)
4238{
4239 return phba->lpfc_sli_brdrestart(phba);
4240}
4241
4242/**
James Smart3621a712009-04-06 18:47:14 -04004243 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04004244 * @phba: Pointer to HBA context object.
4245 *
4246 * This function is called after a HBA restart to wait for successful
4247 * restart of the HBA. Successful restart of the HBA is indicated by
4248 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4249 * iteration, the function will restart the HBA again. The function returns
4250 * zero if HBA successfully restarted else returns negative error code.
4251 **/
dea31012005-04-17 16:05:31 -05004252static int
4253lpfc_sli_chipset_init(struct lpfc_hba *phba)
4254{
4255 uint32_t status, i = 0;
4256
4257 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004258 if (lpfc_readl(phba->HSregaddr, &status))
4259 return -EIO;
dea31012005-04-17 16:05:31 -05004260
4261 /* Check status register to see what current state is */
4262 i = 0;
4263 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4264
James Smartdcf2a4e2010-09-29 11:18:53 -04004265 /* Check every 10ms for 10 retries, then every 100ms for 90
4266 * retries, then every 1 sec for 50 retires for a total of
4267 * ~60 seconds before reset the board again and check every
4268 * 1 sec for 50 retries. The up to 60 seconds before the
4269 * board ready is required by the Falcon FIPS zeroization
4270 * complete, and any reset the board in between shall cause
4271 * restart of zeroization, further delay the board ready.
dea31012005-04-17 16:05:31 -05004272 */
James Smartdcf2a4e2010-09-29 11:18:53 -04004273 if (i++ >= 200) {
dea31012005-04-17 16:05:31 -05004274 /* Adapter failed to init, timeout, status reg
4275 <status> */
James Smarted957682007-06-17 19:56:37 -05004276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004277 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004278 "timeout, status reg x%x, "
4279 "FW Data: A8 x%x AC x%x\n", status,
4280 readl(phba->MBslimaddr + 0xa8),
4281 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004282 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004283 return -ETIMEDOUT;
4284 }
4285
4286 /* Check to see if any errors occurred during init */
4287 if (status & HS_FFERM) {
4288 /* ERROR: During chipset initialization */
4289 /* Adapter failed to init, chipset, status reg
4290 <status> */
James Smarted957682007-06-17 19:56:37 -05004291 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004292 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004293 "chipset, status reg x%x, "
4294 "FW Data: A8 x%x AC x%x\n", status,
4295 readl(phba->MBslimaddr + 0xa8),
4296 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004297 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004298 return -EIO;
4299 }
4300
James Smartdcf2a4e2010-09-29 11:18:53 -04004301 if (i <= 10)
dea31012005-04-17 16:05:31 -05004302 msleep(10);
James Smartdcf2a4e2010-09-29 11:18:53 -04004303 else if (i <= 100)
4304 msleep(100);
4305 else
4306 msleep(1000);
dea31012005-04-17 16:05:31 -05004307
James Smartdcf2a4e2010-09-29 11:18:53 -04004308 if (i == 150) {
4309 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05004310 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004311 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004312 }
4313 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004314 if (lpfc_readl(phba->HSregaddr, &status))
4315 return -EIO;
dea31012005-04-17 16:05:31 -05004316 }
4317
4318 /* Check to see if any errors occurred during init */
4319 if (status & HS_FFERM) {
4320 /* ERROR: During chipset initialization */
4321 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05004322 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004323 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05004324 "status reg x%x, "
4325 "FW Data: A8 x%x AC x%x\n", status,
4326 readl(phba->MBslimaddr + 0xa8),
4327 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004328 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004329 return -EIO;
4330 }
4331
4332 /* Clear all interrupt enable conditions */
4333 writel(0, phba->HCregaddr);
4334 readl(phba->HCregaddr); /* flush */
4335
4336 /* setup host attn register */
4337 writel(0xffffffff, phba->HAregaddr);
4338 readl(phba->HAregaddr); /* flush */
4339 return 0;
4340}
4341
James Smarte59058c2008-08-24 21:49:00 -04004342/**
James Smart3621a712009-04-06 18:47:14 -04004343 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04004344 *
4345 * This function calculates and returns the number of HBQs required to be
4346 * configured.
4347 **/
James Smart78b2d852007-08-02 11:10:21 -04004348int
James Smarted957682007-06-17 19:56:37 -05004349lpfc_sli_hbq_count(void)
4350{
James Smart92d7f7b2007-06-17 19:56:38 -05004351 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05004352}
4353
James Smarte59058c2008-08-24 21:49:00 -04004354/**
James Smart3621a712009-04-06 18:47:14 -04004355 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004356 *
4357 * This function adds the number of hbq entries in every HBQ to get
4358 * the total number of hbq entries required for the HBA and returns
4359 * the total count.
4360 **/
James Smarted957682007-06-17 19:56:37 -05004361static int
4362lpfc_sli_hbq_entry_count(void)
4363{
4364 int hbq_count = lpfc_sli_hbq_count();
4365 int count = 0;
4366 int i;
4367
4368 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05004369 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05004370 return count;
4371}
4372
James Smarte59058c2008-08-24 21:49:00 -04004373/**
James Smart3621a712009-04-06 18:47:14 -04004374 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004375 *
4376 * This function calculates amount of memory required for all hbq entries
4377 * to be configured and returns the total memory required.
4378 **/
dea31012005-04-17 16:05:31 -05004379int
James Smarted957682007-06-17 19:56:37 -05004380lpfc_sli_hbq_size(void)
4381{
4382 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4383}
4384
James Smarte59058c2008-08-24 21:49:00 -04004385/**
James Smart3621a712009-04-06 18:47:14 -04004386 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04004387 * @phba: Pointer to HBA context object.
4388 *
4389 * This function is called during the SLI initialization to configure
4390 * all the HBQs and post buffers to the HBQ. The caller is not
4391 * required to hold any locks. This function will return zero if successful
4392 * else it will return negative error code.
4393 **/
James Smarted957682007-06-17 19:56:37 -05004394static int
4395lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4396{
4397 int hbq_count = lpfc_sli_hbq_count();
4398 LPFC_MBOXQ_t *pmb;
4399 MAILBOX_t *pmbox;
4400 uint32_t hbqno;
4401 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05004402
James Smart92d7f7b2007-06-17 19:56:38 -05004403 /* Get a Mailbox buffer to setup mailbox
4404 * commands for HBA initialization
4405 */
James Smarted957682007-06-17 19:56:37 -05004406 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4407
4408 if (!pmb)
4409 return -ENOMEM;
4410
James Smart04c68492009-05-22 14:52:52 -04004411 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05004412
4413 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4414 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05004415 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05004416
4417 hbq_entry_index = 0;
4418 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4419 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4420 phba->hbqs[hbqno].hbqPutIdx = 0;
4421 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4422 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05004423 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04004424 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4425 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05004426 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4427
4428 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4429 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4430 mbxStatus <status>, ring <num> */
4431
4432 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004433 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004434 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05004435 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004436 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05004437 pmbox->mbxStatus, hbqno);
4438
4439 phba->link_state = LPFC_HBA_ERROR;
4440 mempool_free(pmb, phba->mbox_mem_pool);
James Smart6e7288d2010-06-07 15:23:35 -04004441 return -ENXIO;
James Smarted957682007-06-17 19:56:37 -05004442 }
4443 }
4444 phba->hbq_count = hbq_count;
4445
James Smarted957682007-06-17 19:56:37 -05004446 mempool_free(pmb, phba->mbox_mem_pool);
4447
James Smart92d7f7b2007-06-17 19:56:38 -05004448 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04004449 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4450 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05004451 return 0;
4452}
4453
James Smarte59058c2008-08-24 21:49:00 -04004454/**
James Smart4f774512009-05-22 14:52:35 -04004455 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4456 * @phba: Pointer to HBA context object.
4457 *
4458 * This function is called during the SLI initialization to configure
4459 * all the HBQs and post buffers to the HBQ. The caller is not
4460 * required to hold any locks. This function will return zero if successful
4461 * else it will return negative error code.
4462 **/
4463static int
4464lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4465{
4466 phba->hbq_in_use = 1;
4467 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4468 phba->hbq_count = 1;
4469 /* Initially populate or replenish the HBQs */
4470 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4471 return 0;
4472}
4473
4474/**
James Smart3621a712009-04-06 18:47:14 -04004475 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04004476 * @phba: Pointer to HBA context object.
4477 * @sli_mode: sli mode - 2/3
4478 *
4479 * This function is called by the sli intialization code path
4480 * to issue config_port mailbox command. This function restarts the
4481 * HBA firmware and issues a config_port mailbox command to configure
4482 * the SLI interface in the sli mode specified by sli_mode
4483 * variable. The caller is not required to hold any locks.
4484 * The function returns 0 if successful, else returns negative error
4485 * code.
4486 **/
James Smart93996272008-08-24 21:50:30 -04004487int
4488lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05004489{
4490 LPFC_MBOXQ_t *pmb;
4491 uint32_t resetcount = 0, rc = 0, done = 0;
4492
4493 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4494 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05004495 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004496 return -ENOMEM;
4497 }
4498
James Smarted957682007-06-17 19:56:37 -05004499 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05004500 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05004501 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004502 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004503 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05004504 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004505 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004506 rc = lpfc_sli_chipset_init(phba);
4507 if (rc)
4508 break;
4509
James Smart2e0fef82007-06-17 19:56:36 -05004510 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004511 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004512 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004513 resetcount++;
4514
James Smarted957682007-06-17 19:56:37 -05004515 /* Call pre CONFIG_PORT mailbox command initialization. A
4516 * value of 0 means the call was successful. Any other
4517 * nonzero value is a failure, but if ERESTART is returned,
4518 * the driver may reset the HBA and try again.
4519 */
dea31012005-04-17 16:05:31 -05004520 rc = lpfc_config_port_prep(phba);
4521 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05004522 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05004523 continue;
James Smart34b02dc2008-08-24 21:49:55 -04004524 } else if (rc)
dea31012005-04-17 16:05:31 -05004525 break;
James Smart6d368e52011-05-24 11:44:12 -04004526
James Smart2e0fef82007-06-17 19:56:36 -05004527 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05004528 lpfc_config_port(phba, pmb);
4529 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04004530 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4531 LPFC_SLI3_HBQ_ENABLED |
4532 LPFC_SLI3_CRP_ENABLED |
James Smartbc739052010-08-04 16:11:18 -04004533 LPFC_SLI3_BG_ENABLED |
4534 LPFC_SLI3_DSS_ENABLED);
James Smarted957682007-06-17 19:56:37 -05004535 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05004536 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004537 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004538 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04004539 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05004540 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04004541 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004542 spin_unlock_irq(&phba->hbalock);
4543 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04004544 } else {
4545 /* Allow asynchronous mailbox command to go through */
4546 spin_lock_irq(&phba->hbalock);
4547 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4548 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05004549 done = 1;
James Smartcb69f7d2011-12-13 13:21:57 -05004550
4551 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4552 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4553 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4554 "3110 Port did not grant ASABT\n");
James Smart04c68492009-05-22 14:52:52 -04004555 }
dea31012005-04-17 16:05:31 -05004556 }
James Smarted957682007-06-17 19:56:37 -05004557 if (!done) {
4558 rc = -EINVAL;
4559 goto do_prep_failed;
4560 }
James Smart04c68492009-05-22 14:52:52 -04004561 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4562 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04004563 rc = -ENXIO;
4564 goto do_prep_failed;
4565 }
James Smart04c68492009-05-22 14:52:52 -04004566 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04004567 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004568 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4569 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4570 phba->max_vpi : phba->max_vports;
4571
James Smart34b02dc2008-08-24 21:49:55 -04004572 } else
4573 phba->max_vpi = 0;
James Smartbc739052010-08-04 16:11:18 -04004574 phba->fips_level = 0;
4575 phba->fips_spec_rev = 0;
4576 if (pmb->u.mb.un.varCfgPort.gdss) {
James Smart04c68492009-05-22 14:52:52 -04004577 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
James Smartbc739052010-08-04 16:11:18 -04004578 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4579 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4580 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4581 "2850 Security Crypto Active. FIPS x%d "
4582 "(Spec Rev: x%d)",
4583 phba->fips_level, phba->fips_spec_rev);
4584 }
4585 if (pmb->u.mb.un.varCfgPort.sec_err) {
4586 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4587 "2856 Config Port Security Crypto "
4588 "Error: x%x ",
4589 pmb->u.mb.un.varCfgPort.sec_err);
4590 }
James Smart04c68492009-05-22 14:52:52 -04004591 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04004592 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004593 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04004594 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart6e7288d2010-06-07 15:23:35 -04004595
4596 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4597 phba->port_gp = phba->mbox->us.s3_pgp.port;
James Smarte2a0a9d2008-12-04 22:40:02 -05004598
4599 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04004600 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05004601 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4602 else
4603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4604 "0443 Adapter did not grant "
4605 "BlockGuard\n");
4606 }
James Smart34b02dc2008-08-24 21:49:55 -04004607 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05004608 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04004609 phba->port_gp = phba->mbox->us.s2.port;
James Smartd7c255b2008-08-24 21:50:00 -04004610 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05004611 }
James Smart92d7f7b2007-06-17 19:56:38 -05004612do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05004613 mempool_free(pmb, phba->mbox_mem_pool);
4614 return rc;
4615}
4616
James Smarte59058c2008-08-24 21:49:00 -04004617
4618/**
James Smart3621a712009-04-06 18:47:14 -04004619 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04004620 * @phba: Pointer to HBA context object.
4621 *
4622 * This function is the main SLI intialization function. This function
4623 * is called by the HBA intialization code, HBA reset code and HBA
4624 * error attention handler code. Caller is not required to hold any
4625 * locks. This function issues config_port mailbox command to configure
4626 * the SLI, setup iocb rings and HBQ rings. In the end the function
4627 * calls the config_port_post function to issue init_link mailbox
4628 * command and to start the discovery. The function will return zero
4629 * if successful, else it will return negative error code.
4630 **/
James Smarted957682007-06-17 19:56:37 -05004631int
4632lpfc_sli_hba_setup(struct lpfc_hba *phba)
4633{
4634 uint32_t rc;
James Smart6d368e52011-05-24 11:44:12 -04004635 int mode = 3, i;
4636 int longs;
James Smarted957682007-06-17 19:56:37 -05004637
4638 switch (lpfc_sli_mode) {
4639 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004640 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004641 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004642 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004643 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04004644 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004645 break;
4646 }
James Smarted957682007-06-17 19:56:37 -05004647 mode = 2;
4648 break;
4649 case 0:
4650 case 3:
4651 break;
4652 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004653 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004654 "1819 Unrecognized lpfc_sli_mode "
4655 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004656
4657 break;
4658 }
4659
James Smart93996272008-08-24 21:50:30 -04004660 rc = lpfc_sli_config_port(phba, mode);
4661
James Smarted957682007-06-17 19:56:37 -05004662 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004664 "1820 Unable to select SLI-3. "
4665 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004666 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004667 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05004668 if (rc)
dea31012005-04-17 16:05:31 -05004669 goto lpfc_sli_hba_setup_error;
4670
James Smart0d878412009-10-02 15:16:56 -04004671 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4672 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4673 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4674 if (!rc) {
4675 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4676 "2709 This device supports "
4677 "Advanced Error Reporting (AER)\n");
4678 spin_lock_irq(&phba->hbalock);
4679 phba->hba_flag |= HBA_AER_ENABLED;
4680 spin_unlock_irq(&phba->hbalock);
4681 } else {
4682 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4683 "2708 This device does not support "
James Smartb069d7e2013-05-31 17:04:36 -04004684 "Advanced Error Reporting (AER): %d\n",
4685 rc);
James Smart0d878412009-10-02 15:16:56 -04004686 phba->cfg_aer_support = 0;
4687 }
4688 }
4689
James Smarted957682007-06-17 19:56:37 -05004690 if (phba->sli_rev == 3) {
4691 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4692 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004693 } else {
4694 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4695 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004696 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004697 }
4698
4699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004700 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4701 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004702 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004703
4704 if (rc)
4705 goto lpfc_sli_hba_setup_error;
4706
James Smart6d368e52011-05-24 11:44:12 -04004707 /* Initialize VPIs. */
4708 if (phba->sli_rev == LPFC_SLI_REV3) {
4709 /*
4710 * The VPI bitmask and physical ID array are allocated
4711 * and initialized once only - at driver load. A port
4712 * reset doesn't need to reinitialize this memory.
4713 */
4714 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4715 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4716 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4717 GFP_KERNEL);
4718 if (!phba->vpi_bmask) {
4719 rc = -ENOMEM;
4720 goto lpfc_sli_hba_setup_error;
4721 }
4722
4723 phba->vpi_ids = kzalloc(
4724 (phba->max_vpi+1) * sizeof(uint16_t),
4725 GFP_KERNEL);
4726 if (!phba->vpi_ids) {
4727 kfree(phba->vpi_bmask);
4728 rc = -ENOMEM;
4729 goto lpfc_sli_hba_setup_error;
4730 }
4731 for (i = 0; i < phba->max_vpi; i++)
4732 phba->vpi_ids[i] = i;
4733 }
4734 }
4735
James Smart93996272008-08-24 21:50:30 -04004736 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004737 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4738 rc = lpfc_sli_hbq_setup(phba);
4739 if (rc)
4740 goto lpfc_sli_hba_setup_error;
4741 }
James Smart04c68492009-05-22 14:52:52 -04004742 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004743 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004744 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004745
4746 rc = lpfc_config_port_post(phba);
4747 if (rc)
4748 goto lpfc_sli_hba_setup_error;
4749
James Smarted957682007-06-17 19:56:37 -05004750 return rc;
4751
James Smart92d7f7b2007-06-17 19:56:38 -05004752lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004753 phba->link_state = LPFC_HBA_ERROR;
James Smarte40a02c2010-02-26 14:13:54 -05004754 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004755 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004756 return rc;
4757}
4758
James Smartda0436e2009-05-22 14:51:39 -04004759/**
4760 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4761 * @phba: Pointer to HBA context object.
4762 * @mboxq: mailbox pointer.
4763 * This function issue a dump mailbox command to read config region
4764 * 23 and parse the records in the region and populate driver
4765 * data structure.
4766 **/
4767static int
James Smartff78d8f2011-12-13 13:21:35 -05004768lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
James Smartda0436e2009-05-22 14:51:39 -04004769{
James Smartff78d8f2011-12-13 13:21:35 -05004770 LPFC_MBOXQ_t *mboxq;
James Smartda0436e2009-05-22 14:51:39 -04004771 struct lpfc_dmabuf *mp;
4772 struct lpfc_mqe *mqe;
4773 uint32_t data_length;
4774 int rc;
4775
4776 /* Program the default value of vlan_id and fc_map */
4777 phba->valid_vlan = 0;
4778 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4779 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4780 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4781
James Smartff78d8f2011-12-13 13:21:35 -05004782 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4783 if (!mboxq)
James Smartda0436e2009-05-22 14:51:39 -04004784 return -ENOMEM;
4785
James Smartff78d8f2011-12-13 13:21:35 -05004786 mqe = &mboxq->u.mqe;
4787 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4788 rc = -ENOMEM;
4789 goto out_free_mboxq;
4790 }
4791
James Smartda0436e2009-05-22 14:51:39 -04004792 mp = (struct lpfc_dmabuf *) mboxq->context1;
4793 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4794
4795 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4796 "(%d):2571 Mailbox cmd x%x Status x%x "
4797 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4798 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4799 "CQ: x%x x%x x%x x%x\n",
4800 mboxq->vport ? mboxq->vport->vpi : 0,
4801 bf_get(lpfc_mqe_command, mqe),
4802 bf_get(lpfc_mqe_status, mqe),
4803 mqe->un.mb_words[0], mqe->un.mb_words[1],
4804 mqe->un.mb_words[2], mqe->un.mb_words[3],
4805 mqe->un.mb_words[4], mqe->un.mb_words[5],
4806 mqe->un.mb_words[6], mqe->un.mb_words[7],
4807 mqe->un.mb_words[8], mqe->un.mb_words[9],
4808 mqe->un.mb_words[10], mqe->un.mb_words[11],
4809 mqe->un.mb_words[12], mqe->un.mb_words[13],
4810 mqe->un.mb_words[14], mqe->un.mb_words[15],
4811 mqe->un.mb_words[16], mqe->un.mb_words[50],
4812 mboxq->mcqe.word0,
4813 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4814 mboxq->mcqe.trailer);
4815
4816 if (rc) {
4817 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4818 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004819 rc = -EIO;
4820 goto out_free_mboxq;
James Smartda0436e2009-05-22 14:51:39 -04004821 }
4822 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004823 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004824 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4825 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004826 rc = -EIO;
4827 goto out_free_mboxq;
James Smartd11e31d2009-06-10 17:23:06 -04004828 }
James Smartda0436e2009-05-22 14:51:39 -04004829
4830 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4831 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4832 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004833 rc = 0;
4834
4835out_free_mboxq:
4836 mempool_free(mboxq, phba->mbox_mem_pool);
4837 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004838}
4839
4840/**
4841 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4842 * @phba: pointer to lpfc hba data structure.
4843 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4844 * @vpd: pointer to the memory to hold resulting port vpd data.
4845 * @vpd_size: On input, the number of bytes allocated to @vpd.
4846 * On output, the number of data bytes in @vpd.
4847 *
4848 * This routine executes a READ_REV SLI4 mailbox command. In
4849 * addition, this routine gets the port vpd data.
4850 *
4851 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02004852 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -04004853 * -ENOMEM - could not allocated memory.
James Smartda0436e2009-05-22 14:51:39 -04004854 **/
4855static int
4856lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4857 uint8_t *vpd, uint32_t *vpd_size)
4858{
4859 int rc = 0;
4860 uint32_t dma_size;
4861 struct lpfc_dmabuf *dmabuf;
4862 struct lpfc_mqe *mqe;
4863
4864 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4865 if (!dmabuf)
4866 return -ENOMEM;
4867
4868 /*
4869 * Get a DMA buffer for the vpd data resulting from the READ_REV
4870 * mailbox command.
4871 */
4872 dma_size = *vpd_size;
Joe Perches1aee3832014-09-03 12:56:12 -04004873 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev, dma_size,
4874 &dmabuf->phys, GFP_KERNEL);
James Smartda0436e2009-05-22 14:51:39 -04004875 if (!dmabuf->virt) {
4876 kfree(dmabuf);
4877 return -ENOMEM;
4878 }
James Smartda0436e2009-05-22 14:51:39 -04004879
4880 /*
4881 * The SLI4 implementation of READ_REV conflicts at word1,
4882 * bits 31:16 and SLI4 adds vpd functionality not present
4883 * in SLI3. This code corrects the conflicts.
4884 */
4885 lpfc_read_rev(phba, mboxq);
4886 mqe = &mboxq->u.mqe;
4887 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4888 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4889 mqe->un.read_rev.word1 &= 0x0000FFFF;
4890 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4891 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4892
4893 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4894 if (rc) {
4895 dma_free_coherent(&phba->pcidev->dev, dma_size,
4896 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05004897 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04004898 return -EIO;
4899 }
4900
James Smartda0436e2009-05-22 14:51:39 -04004901 /*
4902 * The available vpd length cannot be bigger than the
4903 * DMA buffer passed to the port. Catch the less than
4904 * case and update the caller's size.
4905 */
4906 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4907 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4908
James Smartd7c47992010-06-08 18:31:54 -04004909 memcpy(vpd, dmabuf->virt, *vpd_size);
4910
James Smartda0436e2009-05-22 14:51:39 -04004911 dma_free_coherent(&phba->pcidev->dev, dma_size,
4912 dmabuf->virt, dmabuf->phys);
4913 kfree(dmabuf);
4914 return 0;
4915}
4916
4917/**
James Smartcd1c8302011-10-10 21:33:25 -04004918 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4919 * @phba: pointer to lpfc hba data structure.
4920 *
4921 * This routine retrieves SLI4 device physical port name this PCI function
4922 * is attached to.
4923 *
4924 * Return codes
Anatol Pomozov4907cb72012-09-01 10:31:09 -07004925 * 0 - successful
James Smartcd1c8302011-10-10 21:33:25 -04004926 * otherwise - failed to retrieve physical port name
4927 **/
4928static int
4929lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4930{
4931 LPFC_MBOXQ_t *mboxq;
James Smartcd1c8302011-10-10 21:33:25 -04004932 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4933 struct lpfc_controller_attribute *cntl_attr;
4934 struct lpfc_mbx_get_port_name *get_port_name;
4935 void *virtaddr = NULL;
4936 uint32_t alloclen, reqlen;
4937 uint32_t shdr_status, shdr_add_status;
4938 union lpfc_sli4_cfg_shdr *shdr;
4939 char cport_name = 0;
4940 int rc;
4941
4942 /* We assume nothing at this point */
4943 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4944 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4945
4946 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4947 if (!mboxq)
4948 return -ENOMEM;
James Smartcd1c8302011-10-10 21:33:25 -04004949 /* obtain link type and link number via READ_CONFIG */
James Smartff78d8f2011-12-13 13:21:35 -05004950 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4951 lpfc_sli4_read_config(phba);
4952 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4953 goto retrieve_ppname;
James Smartcd1c8302011-10-10 21:33:25 -04004954
4955 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4956 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4957 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4958 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4959 LPFC_SLI4_MBX_NEMBED);
4960 if (alloclen < reqlen) {
4961 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4962 "3084 Allocated DMA memory size (%d) is "
4963 "less than the requested DMA memory size "
4964 "(%d)\n", alloclen, reqlen);
4965 rc = -ENOMEM;
4966 goto out_free_mboxq;
4967 }
4968 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4969 virtaddr = mboxq->sge_array->addr[0];
4970 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4971 shdr = &mbx_cntl_attr->cfg_shdr;
4972 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4973 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4974 if (shdr_status || shdr_add_status || rc) {
4975 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4976 "3085 Mailbox x%x (x%x/x%x) failed, "
4977 "rc:x%x, status:x%x, add_status:x%x\n",
4978 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4979 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4980 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4981 rc, shdr_status, shdr_add_status);
4982 rc = -ENXIO;
4983 goto out_free_mboxq;
4984 }
4985 cntl_attr = &mbx_cntl_attr->cntl_attr;
4986 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4987 phba->sli4_hba.lnk_info.lnk_tp =
4988 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4989 phba->sli4_hba.lnk_info.lnk_no =
4990 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4991 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4992 "3086 lnk_type:%d, lnk_numb:%d\n",
4993 phba->sli4_hba.lnk_info.lnk_tp,
4994 phba->sli4_hba.lnk_info.lnk_no);
4995
4996retrieve_ppname:
4997 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4998 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4999 sizeof(struct lpfc_mbx_get_port_name) -
5000 sizeof(struct lpfc_sli4_cfg_mhdr),
5001 LPFC_SLI4_MBX_EMBED);
5002 get_port_name = &mboxq->u.mqe.un.get_port_name;
5003 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
5004 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
5005 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
5006 phba->sli4_hba.lnk_info.lnk_tp);
5007 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
5008 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
5009 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
5010 if (shdr_status || shdr_add_status || rc) {
5011 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
5012 "3087 Mailbox x%x (x%x/x%x) failed: "
5013 "rc:x%x, status:x%x, add_status:x%x\n",
5014 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5015 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
5016 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
5017 rc, shdr_status, shdr_add_status);
5018 rc = -ENXIO;
5019 goto out_free_mboxq;
5020 }
5021 switch (phba->sli4_hba.lnk_info.lnk_no) {
5022 case LPFC_LINK_NUMBER_0:
5023 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
5024 &get_port_name->u.response);
5025 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5026 break;
5027 case LPFC_LINK_NUMBER_1:
5028 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
5029 &get_port_name->u.response);
5030 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5031 break;
5032 case LPFC_LINK_NUMBER_2:
5033 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
5034 &get_port_name->u.response);
5035 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5036 break;
5037 case LPFC_LINK_NUMBER_3:
5038 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
5039 &get_port_name->u.response);
5040 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
5041 break;
5042 default:
5043 break;
5044 }
5045
5046 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
5047 phba->Port[0] = cport_name;
5048 phba->Port[1] = '\0';
5049 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5050 "3091 SLI get port name: %s\n", phba->Port);
5051 }
5052
5053out_free_mboxq:
5054 if (rc != MBX_TIMEOUT) {
5055 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
5056 lpfc_sli4_mbox_cmd_free(phba, mboxq);
5057 else
5058 mempool_free(mboxq, phba->mbox_mem_pool);
5059 }
5060 return rc;
5061}
5062
5063/**
James Smartda0436e2009-05-22 14:51:39 -04005064 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5065 * @phba: pointer to lpfc hba data structure.
5066 *
5067 * This routine is called to explicitly arm the SLI4 device's completion and
5068 * event queues
5069 **/
5070static void
5071lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
5072{
James Smart962bc512013-01-03 15:44:00 -05005073 int fcp_eqidx;
James Smartda0436e2009-05-22 14:51:39 -04005074
5075 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
5076 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smart05580562011-05-24 11:40:48 -04005077 fcp_eqidx = 0;
James Smart2e90f4b2011-12-13 13:22:37 -05005078 if (phba->sli4_hba.fcp_cq) {
James Smart67d12732012-08-03 12:36:13 -04005079 do {
James Smart2e90f4b2011-12-13 13:22:37 -05005080 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
5081 LPFC_QUEUE_REARM);
James Smart67d12732012-08-03 12:36:13 -04005082 } while (++fcp_eqidx < phba->cfg_fcp_io_channel);
James Smart2e90f4b2011-12-13 13:22:37 -05005083 }
James Smart1ba981f2014-02-20 09:56:45 -05005084
James Smartf38fa0b2014-04-04 13:52:21 -04005085 if (phba->cfg_fof)
James Smart1ba981f2014-02-20 09:56:45 -05005086 lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
5087
James Smart67d12732012-08-03 12:36:13 -04005088 if (phba->sli4_hba.hba_eq) {
5089 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
James Smart2e90f4b2011-12-13 13:22:37 -05005090 fcp_eqidx++)
James Smart67d12732012-08-03 12:36:13 -04005091 lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
James Smart2e90f4b2011-12-13 13:22:37 -05005092 LPFC_QUEUE_REARM);
5093 }
James Smart1ba981f2014-02-20 09:56:45 -05005094
5095 if (phba->cfg_fof)
5096 lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
James Smartda0436e2009-05-22 14:51:39 -04005097}
5098
5099/**
James Smart6d368e52011-05-24 11:44:12 -04005100 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5101 * @phba: Pointer to HBA context object.
5102 * @type: The resource extent type.
James Smartb76f2dc2011-07-22 18:37:42 -04005103 * @extnt_count: buffer to hold port available extent count.
5104 * @extnt_size: buffer to hold element count per extent.
James Smart6d368e52011-05-24 11:44:12 -04005105 *
James Smartb76f2dc2011-07-22 18:37:42 -04005106 * This function calls the port and retrievs the number of available
5107 * extents and their size for a particular extent type.
5108 *
5109 * Returns: 0 if successful. Nonzero otherwise.
James Smart6d368e52011-05-24 11:44:12 -04005110 **/
James Smartb76f2dc2011-07-22 18:37:42 -04005111int
James Smart6d368e52011-05-24 11:44:12 -04005112lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
5113 uint16_t *extnt_count, uint16_t *extnt_size)
5114{
5115 int rc = 0;
5116 uint32_t length;
5117 uint32_t mbox_tmo;
5118 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
5119 LPFC_MBOXQ_t *mbox;
5120
5121 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5122 if (!mbox)
5123 return -ENOMEM;
5124
5125 /* Find out how many extents are available for this resource type */
5126 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
5127 sizeof(struct lpfc_sli4_cfg_mhdr));
5128 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5129 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
5130 length, LPFC_SLI4_MBX_EMBED);
5131
5132 /* Send an extents count of 0 - the GET doesn't use it. */
5133 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5134 LPFC_SLI4_MBX_EMBED);
5135 if (unlikely(rc)) {
5136 rc = -EIO;
5137 goto err_exit;
5138 }
5139
5140 if (!phba->sli4_hba.intr_enable)
5141 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5142 else {
James Smarta183a152011-10-10 21:32:43 -04005143 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005144 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5145 }
5146 if (unlikely(rc)) {
5147 rc = -EIO;
5148 goto err_exit;
5149 }
5150
5151 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
5152 if (bf_get(lpfc_mbox_hdr_status,
5153 &rsrc_info->header.cfg_shdr.response)) {
5154 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5155 "2930 Failed to get resource extents "
5156 "Status 0x%x Add'l Status 0x%x\n",
5157 bf_get(lpfc_mbox_hdr_status,
5158 &rsrc_info->header.cfg_shdr.response),
5159 bf_get(lpfc_mbox_hdr_add_status,
5160 &rsrc_info->header.cfg_shdr.response));
5161 rc = -EIO;
5162 goto err_exit;
5163 }
5164
5165 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
5166 &rsrc_info->u.rsp);
5167 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
5168 &rsrc_info->u.rsp);
James Smart8a9d2e82012-05-09 21:16:12 -04005169
5170 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
5171 "3162 Retrieved extents type-%d from port: count:%d, "
5172 "size:%d\n", type, *extnt_count, *extnt_size);
5173
5174err_exit:
James Smart6d368e52011-05-24 11:44:12 -04005175 mempool_free(mbox, phba->mbox_mem_pool);
5176 return rc;
5177}
5178
5179/**
5180 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5181 * @phba: Pointer to HBA context object.
5182 * @type: The extent type to check.
5183 *
5184 * This function reads the current available extents from the port and checks
5185 * if the extent count or extent size has changed since the last access.
5186 * Callers use this routine post port reset to understand if there is a
5187 * extent reprovisioning requirement.
5188 *
5189 * Returns:
5190 * -Error: error indicates problem.
5191 * 1: Extent count or size has changed.
5192 * 0: No changes.
5193 **/
5194static int
5195lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
5196{
5197 uint16_t curr_ext_cnt, rsrc_ext_cnt;
5198 uint16_t size_diff, rsrc_ext_size;
5199 int rc = 0;
5200 struct lpfc_rsrc_blks *rsrc_entry;
5201 struct list_head *rsrc_blk_list = NULL;
5202
5203 size_diff = 0;
5204 curr_ext_cnt = 0;
5205 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5206 &rsrc_ext_cnt,
5207 &rsrc_ext_size);
5208 if (unlikely(rc))
5209 return -EIO;
5210
5211 switch (type) {
5212 case LPFC_RSC_TYPE_FCOE_RPI:
5213 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5214 break;
5215 case LPFC_RSC_TYPE_FCOE_VPI:
5216 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5217 break;
5218 case LPFC_RSC_TYPE_FCOE_XRI:
5219 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5220 break;
5221 case LPFC_RSC_TYPE_FCOE_VFI:
5222 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5223 break;
5224 default:
5225 break;
5226 }
5227
5228 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5229 curr_ext_cnt++;
5230 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5231 size_diff++;
5232 }
5233
5234 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5235 rc = 1;
5236
5237 return rc;
5238}
5239
5240/**
5241 * lpfc_sli4_cfg_post_extnts -
5242 * @phba: Pointer to HBA context object.
5243 * @extnt_cnt - number of available extents.
5244 * @type - the extent type (rpi, xri, vfi, vpi).
5245 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5246 * @mbox - pointer to the caller's allocated mailbox structure.
5247 *
5248 * This function executes the extents allocation request. It also
5249 * takes care of the amount of memory needed to allocate or get the
5250 * allocated extents. It is the caller's responsibility to evaluate
5251 * the response.
5252 *
5253 * Returns:
5254 * -Error: Error value describes the condition found.
5255 * 0: if successful
5256 **/
5257static int
James Smart8a9d2e82012-05-09 21:16:12 -04005258lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t extnt_cnt,
James Smart6d368e52011-05-24 11:44:12 -04005259 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5260{
5261 int rc = 0;
5262 uint32_t req_len;
5263 uint32_t emb_len;
5264 uint32_t alloc_len, mbox_tmo;
5265
5266 /* Calculate the total requested length of the dma memory */
James Smart8a9d2e82012-05-09 21:16:12 -04005267 req_len = extnt_cnt * sizeof(uint16_t);
James Smart6d368e52011-05-24 11:44:12 -04005268
5269 /*
5270 * Calculate the size of an embedded mailbox. The uint32_t
5271 * accounts for extents-specific word.
5272 */
5273 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5274 sizeof(uint32_t);
5275
5276 /*
5277 * Presume the allocation and response will fit into an embedded
5278 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5279 */
5280 *emb = LPFC_SLI4_MBX_EMBED;
5281 if (req_len > emb_len) {
James Smart8a9d2e82012-05-09 21:16:12 -04005282 req_len = extnt_cnt * sizeof(uint16_t) +
James Smart6d368e52011-05-24 11:44:12 -04005283 sizeof(union lpfc_sli4_cfg_shdr) +
5284 sizeof(uint32_t);
5285 *emb = LPFC_SLI4_MBX_NEMBED;
5286 }
5287
5288 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5289 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5290 req_len, *emb);
5291 if (alloc_len < req_len) {
5292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartb76f2dc2011-07-22 18:37:42 -04005293 "2982 Allocated DMA memory size (x%x) is "
James Smart6d368e52011-05-24 11:44:12 -04005294 "less than the requested DMA memory "
5295 "size (x%x)\n", alloc_len, req_len);
5296 return -ENOMEM;
5297 }
James Smart8a9d2e82012-05-09 21:16:12 -04005298 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, extnt_cnt, type, *emb);
James Smart6d368e52011-05-24 11:44:12 -04005299 if (unlikely(rc))
5300 return -EIO;
5301
5302 if (!phba->sli4_hba.intr_enable)
5303 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5304 else {
James Smarta183a152011-10-10 21:32:43 -04005305 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005306 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5307 }
5308
5309 if (unlikely(rc))
5310 rc = -EIO;
5311 return rc;
5312}
5313
5314/**
5315 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5316 * @phba: Pointer to HBA context object.
5317 * @type: The resource extent type to allocate.
5318 *
5319 * This function allocates the number of elements for the specified
5320 * resource type.
5321 **/
5322static int
5323lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5324{
5325 bool emb = false;
5326 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5327 uint16_t rsrc_id, rsrc_start, j, k;
5328 uint16_t *ids;
5329 int i, rc;
5330 unsigned long longs;
5331 unsigned long *bmask;
5332 struct lpfc_rsrc_blks *rsrc_blks;
5333 LPFC_MBOXQ_t *mbox;
5334 uint32_t length;
5335 struct lpfc_id_range *id_array = NULL;
5336 void *virtaddr = NULL;
5337 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5338 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5339 struct list_head *ext_blk_list;
5340
5341 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5342 &rsrc_cnt,
5343 &rsrc_size);
5344 if (unlikely(rc))
5345 return -EIO;
5346
5347 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5348 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5349 "3009 No available Resource Extents "
5350 "for resource type 0x%x: Count: 0x%x, "
5351 "Size 0x%x\n", type, rsrc_cnt,
5352 rsrc_size);
5353 return -ENOMEM;
5354 }
5355
James Smart8a9d2e82012-05-09 21:16:12 -04005356 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT | LOG_SLI,
5357 "2903 Post resource extents type-0x%x: "
5358 "count:%d, size %d\n", type, rsrc_cnt, rsrc_size);
James Smart6d368e52011-05-24 11:44:12 -04005359
5360 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5361 if (!mbox)
5362 return -ENOMEM;
5363
James Smart8a9d2e82012-05-09 21:16:12 -04005364 rc = lpfc_sli4_cfg_post_extnts(phba, rsrc_cnt, type, &emb, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005365 if (unlikely(rc)) {
5366 rc = -EIO;
5367 goto err_exit;
5368 }
5369
5370 /*
5371 * Figure out where the response is located. Then get local pointers
5372 * to the response data. The port does not guarantee to respond to
5373 * all extents counts request so update the local variable with the
5374 * allocated count from the port.
5375 */
5376 if (emb == LPFC_SLI4_MBX_EMBED) {
5377 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5378 id_array = &rsrc_ext->u.rsp.id[0];
5379 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5380 } else {
5381 virtaddr = mbox->sge_array->addr[0];
5382 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5383 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5384 id_array = &n_rsrc->id;
5385 }
5386
5387 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5388 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5389
5390 /*
5391 * Based on the resource size and count, correct the base and max
5392 * resource values.
5393 */
5394 length = sizeof(struct lpfc_rsrc_blks);
5395 switch (type) {
5396 case LPFC_RSC_TYPE_FCOE_RPI:
5397 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5398 sizeof(unsigned long),
5399 GFP_KERNEL);
5400 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5401 rc = -ENOMEM;
5402 goto err_exit;
5403 }
5404 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5405 sizeof(uint16_t),
5406 GFP_KERNEL);
5407 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5408 kfree(phba->sli4_hba.rpi_bmask);
5409 rc = -ENOMEM;
5410 goto err_exit;
5411 }
5412
5413 /*
5414 * The next_rpi was initialized with the maximum available
5415 * count but the port may allocate a smaller number. Catch
5416 * that case and update the next_rpi.
5417 */
5418 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5419
5420 /* Initialize local ptrs for common extent processing later. */
5421 bmask = phba->sli4_hba.rpi_bmask;
5422 ids = phba->sli4_hba.rpi_ids;
5423 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5424 break;
5425 case LPFC_RSC_TYPE_FCOE_VPI:
5426 phba->vpi_bmask = kzalloc(longs *
5427 sizeof(unsigned long),
5428 GFP_KERNEL);
5429 if (unlikely(!phba->vpi_bmask)) {
5430 rc = -ENOMEM;
5431 goto err_exit;
5432 }
5433 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5434 sizeof(uint16_t),
5435 GFP_KERNEL);
5436 if (unlikely(!phba->vpi_ids)) {
5437 kfree(phba->vpi_bmask);
5438 rc = -ENOMEM;
5439 goto err_exit;
5440 }
5441
5442 /* Initialize local ptrs for common extent processing later. */
5443 bmask = phba->vpi_bmask;
5444 ids = phba->vpi_ids;
5445 ext_blk_list = &phba->lpfc_vpi_blk_list;
5446 break;
5447 case LPFC_RSC_TYPE_FCOE_XRI:
5448 phba->sli4_hba.xri_bmask = kzalloc(longs *
5449 sizeof(unsigned long),
5450 GFP_KERNEL);
5451 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5452 rc = -ENOMEM;
5453 goto err_exit;
5454 }
James Smart8a9d2e82012-05-09 21:16:12 -04005455 phba->sli4_hba.max_cfg_param.xri_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005456 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5457 sizeof(uint16_t),
5458 GFP_KERNEL);
5459 if (unlikely(!phba->sli4_hba.xri_ids)) {
5460 kfree(phba->sli4_hba.xri_bmask);
5461 rc = -ENOMEM;
5462 goto err_exit;
5463 }
5464
5465 /* Initialize local ptrs for common extent processing later. */
5466 bmask = phba->sli4_hba.xri_bmask;
5467 ids = phba->sli4_hba.xri_ids;
5468 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5469 break;
5470 case LPFC_RSC_TYPE_FCOE_VFI:
5471 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5472 sizeof(unsigned long),
5473 GFP_KERNEL);
5474 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5475 rc = -ENOMEM;
5476 goto err_exit;
5477 }
5478 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5479 sizeof(uint16_t),
5480 GFP_KERNEL);
5481 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5482 kfree(phba->sli4_hba.vfi_bmask);
5483 rc = -ENOMEM;
5484 goto err_exit;
5485 }
5486
5487 /* Initialize local ptrs for common extent processing later. */
5488 bmask = phba->sli4_hba.vfi_bmask;
5489 ids = phba->sli4_hba.vfi_ids;
5490 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5491 break;
5492 default:
5493 /* Unsupported Opcode. Fail call. */
5494 id_array = NULL;
5495 bmask = NULL;
5496 ids = NULL;
5497 ext_blk_list = NULL;
5498 goto err_exit;
5499 }
5500
5501 /*
5502 * Complete initializing the extent configuration with the
5503 * allocated ids assigned to this function. The bitmask serves
5504 * as an index into the array and manages the available ids. The
5505 * array just stores the ids communicated to the port via the wqes.
5506 */
5507 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5508 if ((i % 2) == 0)
5509 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5510 &id_array[k]);
5511 else
5512 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5513 &id_array[k]);
5514
5515 rsrc_blks = kzalloc(length, GFP_KERNEL);
5516 if (unlikely(!rsrc_blks)) {
5517 rc = -ENOMEM;
5518 kfree(bmask);
5519 kfree(ids);
5520 goto err_exit;
5521 }
5522 rsrc_blks->rsrc_start = rsrc_id;
5523 rsrc_blks->rsrc_size = rsrc_size;
5524 list_add_tail(&rsrc_blks->list, ext_blk_list);
5525 rsrc_start = rsrc_id;
5526 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5527 phba->sli4_hba.scsi_xri_start = rsrc_start +
5528 lpfc_sli4_get_els_iocb_cnt(phba);
5529
5530 while (rsrc_id < (rsrc_start + rsrc_size)) {
5531 ids[j] = rsrc_id;
5532 rsrc_id++;
5533 j++;
5534 }
5535 /* Entire word processed. Get next word.*/
5536 if ((i % 2) == 1)
5537 k++;
5538 }
5539 err_exit:
5540 lpfc_sli4_mbox_cmd_free(phba, mbox);
5541 return rc;
5542}
5543
5544/**
5545 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5546 * @phba: Pointer to HBA context object.
5547 * @type: the extent's type.
5548 *
5549 * This function deallocates all extents of a particular resource type.
5550 * SLI4 does not allow for deallocating a particular extent range. It
5551 * is the caller's responsibility to release all kernel memory resources.
5552 **/
5553static int
5554lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5555{
5556 int rc;
5557 uint32_t length, mbox_tmo = 0;
5558 LPFC_MBOXQ_t *mbox;
5559 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5560 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5561
5562 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5563 if (!mbox)
5564 return -ENOMEM;
5565
5566 /*
5567 * This function sends an embedded mailbox because it only sends the
5568 * the resource type. All extents of this type are released by the
5569 * port.
5570 */
5571 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5572 sizeof(struct lpfc_sli4_cfg_mhdr));
5573 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5574 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5575 length, LPFC_SLI4_MBX_EMBED);
5576
5577 /* Send an extents count of 0 - the dealloc doesn't use it. */
5578 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5579 LPFC_SLI4_MBX_EMBED);
5580 if (unlikely(rc)) {
5581 rc = -EIO;
5582 goto out_free_mbox;
5583 }
5584 if (!phba->sli4_hba.intr_enable)
5585 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5586 else {
James Smarta183a152011-10-10 21:32:43 -04005587 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005588 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5589 }
5590 if (unlikely(rc)) {
5591 rc = -EIO;
5592 goto out_free_mbox;
5593 }
5594
5595 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5596 if (bf_get(lpfc_mbox_hdr_status,
5597 &dealloc_rsrc->header.cfg_shdr.response)) {
5598 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5599 "2919 Failed to release resource extents "
5600 "for type %d - Status 0x%x Add'l Status 0x%x. "
5601 "Resource memory not released.\n",
5602 type,
5603 bf_get(lpfc_mbox_hdr_status,
5604 &dealloc_rsrc->header.cfg_shdr.response),
5605 bf_get(lpfc_mbox_hdr_add_status,
5606 &dealloc_rsrc->header.cfg_shdr.response));
5607 rc = -EIO;
5608 goto out_free_mbox;
5609 }
5610
5611 /* Release kernel memory resources for the specific type. */
5612 switch (type) {
5613 case LPFC_RSC_TYPE_FCOE_VPI:
5614 kfree(phba->vpi_bmask);
5615 kfree(phba->vpi_ids);
5616 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5617 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5618 &phba->lpfc_vpi_blk_list, list) {
5619 list_del_init(&rsrc_blk->list);
5620 kfree(rsrc_blk);
5621 }
James Smart16a3a202013-04-17 20:14:38 -04005622 phba->sli4_hba.max_cfg_param.vpi_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005623 break;
5624 case LPFC_RSC_TYPE_FCOE_XRI:
5625 kfree(phba->sli4_hba.xri_bmask);
5626 kfree(phba->sli4_hba.xri_ids);
James Smart6d368e52011-05-24 11:44:12 -04005627 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5628 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5629 list_del_init(&rsrc_blk->list);
5630 kfree(rsrc_blk);
5631 }
5632 break;
5633 case LPFC_RSC_TYPE_FCOE_VFI:
5634 kfree(phba->sli4_hba.vfi_bmask);
5635 kfree(phba->sli4_hba.vfi_ids);
5636 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5637 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5638 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5639 list_del_init(&rsrc_blk->list);
5640 kfree(rsrc_blk);
5641 }
5642 break;
5643 case LPFC_RSC_TYPE_FCOE_RPI:
5644 /* RPI bitmask and physical id array are cleaned up earlier. */
5645 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5646 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5647 list_del_init(&rsrc_blk->list);
5648 kfree(rsrc_blk);
5649 }
5650 break;
5651 default:
5652 break;
5653 }
5654
5655 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5656
5657 out_free_mbox:
5658 mempool_free(mbox, phba->mbox_mem_pool);
5659 return rc;
5660}
5661
5662/**
5663 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5664 * @phba: Pointer to HBA context object.
5665 *
5666 * This function allocates all SLI4 resource identifiers.
5667 **/
5668int
5669lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5670{
5671 int i, rc, error = 0;
5672 uint16_t count, base;
5673 unsigned long longs;
5674
James Smartff78d8f2011-12-13 13:21:35 -05005675 if (!phba->sli4_hba.rpi_hdrs_in_use)
5676 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart6d368e52011-05-24 11:44:12 -04005677 if (phba->sli4_hba.extents_in_use) {
5678 /*
5679 * The port supports resource extents. The XRI, VPI, VFI, RPI
5680 * resource extent count must be read and allocated before
5681 * provisioning the resource id arrays.
5682 */
5683 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5684 LPFC_IDX_RSRC_RDY) {
5685 /*
5686 * Extent-based resources are set - the driver could
5687 * be in a port reset. Figure out if any corrective
5688 * actions need to be taken.
5689 */
5690 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5691 LPFC_RSC_TYPE_FCOE_VFI);
5692 if (rc != 0)
5693 error++;
5694 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5695 LPFC_RSC_TYPE_FCOE_VPI);
5696 if (rc != 0)
5697 error++;
5698 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5699 LPFC_RSC_TYPE_FCOE_XRI);
5700 if (rc != 0)
5701 error++;
5702 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5703 LPFC_RSC_TYPE_FCOE_RPI);
5704 if (rc != 0)
5705 error++;
5706
5707 /*
5708 * It's possible that the number of resources
5709 * provided to this port instance changed between
5710 * resets. Detect this condition and reallocate
5711 * resources. Otherwise, there is no action.
5712 */
5713 if (error) {
5714 lpfc_printf_log(phba, KERN_INFO,
5715 LOG_MBOX | LOG_INIT,
5716 "2931 Detected extent resource "
5717 "change. Reallocating all "
5718 "extents.\n");
5719 rc = lpfc_sli4_dealloc_extent(phba,
5720 LPFC_RSC_TYPE_FCOE_VFI);
5721 rc = lpfc_sli4_dealloc_extent(phba,
5722 LPFC_RSC_TYPE_FCOE_VPI);
5723 rc = lpfc_sli4_dealloc_extent(phba,
5724 LPFC_RSC_TYPE_FCOE_XRI);
5725 rc = lpfc_sli4_dealloc_extent(phba,
5726 LPFC_RSC_TYPE_FCOE_RPI);
5727 } else
5728 return 0;
5729 }
5730
5731 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5732 if (unlikely(rc))
5733 goto err_exit;
5734
5735 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5736 if (unlikely(rc))
5737 goto err_exit;
5738
5739 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5740 if (unlikely(rc))
5741 goto err_exit;
5742
5743 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5744 if (unlikely(rc))
5745 goto err_exit;
5746 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5747 LPFC_IDX_RSRC_RDY);
5748 return rc;
5749 } else {
5750 /*
5751 * The port does not support resource extents. The XRI, VPI,
5752 * VFI, RPI resource ids were determined from READ_CONFIG.
5753 * Just allocate the bitmasks and provision the resource id
5754 * arrays. If a port reset is active, the resources don't
5755 * need any action - just exit.
5756 */
5757 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
James Smartff78d8f2011-12-13 13:21:35 -05005758 LPFC_IDX_RSRC_RDY) {
5759 lpfc_sli4_dealloc_resource_identifiers(phba);
5760 lpfc_sli4_remove_rpis(phba);
5761 }
James Smart6d368e52011-05-24 11:44:12 -04005762 /* RPIs. */
5763 count = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart0a630c22013-01-03 15:44:09 -05005764 if (count <= 0) {
5765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5766 "3279 Invalid provisioning of "
5767 "rpi:%d\n", count);
5768 rc = -EINVAL;
5769 goto err_exit;
5770 }
James Smart6d368e52011-05-24 11:44:12 -04005771 base = phba->sli4_hba.max_cfg_param.rpi_base;
5772 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5773 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5774 sizeof(unsigned long),
5775 GFP_KERNEL);
5776 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5777 rc = -ENOMEM;
5778 goto err_exit;
5779 }
5780 phba->sli4_hba.rpi_ids = kzalloc(count *
5781 sizeof(uint16_t),
5782 GFP_KERNEL);
5783 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5784 rc = -ENOMEM;
5785 goto free_rpi_bmask;
5786 }
5787
5788 for (i = 0; i < count; i++)
5789 phba->sli4_hba.rpi_ids[i] = base + i;
5790
5791 /* VPIs. */
5792 count = phba->sli4_hba.max_cfg_param.max_vpi;
James Smart0a630c22013-01-03 15:44:09 -05005793 if (count <= 0) {
5794 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5795 "3280 Invalid provisioning of "
5796 "vpi:%d\n", count);
5797 rc = -EINVAL;
5798 goto free_rpi_ids;
5799 }
James Smart6d368e52011-05-24 11:44:12 -04005800 base = phba->sli4_hba.max_cfg_param.vpi_base;
5801 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5802 phba->vpi_bmask = kzalloc(longs *
5803 sizeof(unsigned long),
5804 GFP_KERNEL);
5805 if (unlikely(!phba->vpi_bmask)) {
5806 rc = -ENOMEM;
5807 goto free_rpi_ids;
5808 }
5809 phba->vpi_ids = kzalloc(count *
5810 sizeof(uint16_t),
5811 GFP_KERNEL);
5812 if (unlikely(!phba->vpi_ids)) {
5813 rc = -ENOMEM;
5814 goto free_vpi_bmask;
5815 }
5816
5817 for (i = 0; i < count; i++)
5818 phba->vpi_ids[i] = base + i;
5819
5820 /* XRIs. */
5821 count = phba->sli4_hba.max_cfg_param.max_xri;
James Smart0a630c22013-01-03 15:44:09 -05005822 if (count <= 0) {
5823 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5824 "3281 Invalid provisioning of "
5825 "xri:%d\n", count);
5826 rc = -EINVAL;
5827 goto free_vpi_ids;
5828 }
James Smart6d368e52011-05-24 11:44:12 -04005829 base = phba->sli4_hba.max_cfg_param.xri_base;
5830 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5831 phba->sli4_hba.xri_bmask = kzalloc(longs *
5832 sizeof(unsigned long),
5833 GFP_KERNEL);
5834 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5835 rc = -ENOMEM;
5836 goto free_vpi_ids;
5837 }
James Smart41899be2012-03-01 22:34:19 -05005838 phba->sli4_hba.max_cfg_param.xri_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005839 phba->sli4_hba.xri_ids = kzalloc(count *
5840 sizeof(uint16_t),
5841 GFP_KERNEL);
5842 if (unlikely(!phba->sli4_hba.xri_ids)) {
5843 rc = -ENOMEM;
5844 goto free_xri_bmask;
5845 }
5846
5847 for (i = 0; i < count; i++)
5848 phba->sli4_hba.xri_ids[i] = base + i;
5849
5850 /* VFIs. */
5851 count = phba->sli4_hba.max_cfg_param.max_vfi;
James Smart0a630c22013-01-03 15:44:09 -05005852 if (count <= 0) {
5853 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5854 "3282 Invalid provisioning of "
5855 "vfi:%d\n", count);
5856 rc = -EINVAL;
5857 goto free_xri_ids;
5858 }
James Smart6d368e52011-05-24 11:44:12 -04005859 base = phba->sli4_hba.max_cfg_param.vfi_base;
5860 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5861 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5862 sizeof(unsigned long),
5863 GFP_KERNEL);
5864 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5865 rc = -ENOMEM;
5866 goto free_xri_ids;
5867 }
5868 phba->sli4_hba.vfi_ids = kzalloc(count *
5869 sizeof(uint16_t),
5870 GFP_KERNEL);
5871 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5872 rc = -ENOMEM;
5873 goto free_vfi_bmask;
5874 }
5875
5876 for (i = 0; i < count; i++)
5877 phba->sli4_hba.vfi_ids[i] = base + i;
5878
5879 /*
5880 * Mark all resources ready. An HBA reset doesn't need
5881 * to reset the initialization.
5882 */
5883 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5884 LPFC_IDX_RSRC_RDY);
5885 return 0;
5886 }
5887
5888 free_vfi_bmask:
5889 kfree(phba->sli4_hba.vfi_bmask);
5890 free_xri_ids:
5891 kfree(phba->sli4_hba.xri_ids);
5892 free_xri_bmask:
5893 kfree(phba->sli4_hba.xri_bmask);
5894 free_vpi_ids:
5895 kfree(phba->vpi_ids);
5896 free_vpi_bmask:
5897 kfree(phba->vpi_bmask);
5898 free_rpi_ids:
5899 kfree(phba->sli4_hba.rpi_ids);
5900 free_rpi_bmask:
5901 kfree(phba->sli4_hba.rpi_bmask);
5902 err_exit:
5903 return rc;
5904}
5905
5906/**
5907 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5908 * @phba: Pointer to HBA context object.
5909 *
5910 * This function allocates the number of elements for the specified
5911 * resource type.
5912 **/
5913int
5914lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5915{
5916 if (phba->sli4_hba.extents_in_use) {
5917 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5918 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5919 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5920 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5921 } else {
5922 kfree(phba->vpi_bmask);
James Smart16a3a202013-04-17 20:14:38 -04005923 phba->sli4_hba.max_cfg_param.vpi_used = 0;
James Smart6d368e52011-05-24 11:44:12 -04005924 kfree(phba->vpi_ids);
5925 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5926 kfree(phba->sli4_hba.xri_bmask);
5927 kfree(phba->sli4_hba.xri_ids);
James Smart6d368e52011-05-24 11:44:12 -04005928 kfree(phba->sli4_hba.vfi_bmask);
5929 kfree(phba->sli4_hba.vfi_ids);
5930 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5931 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5932 }
5933
5934 return 0;
5935}
5936
5937/**
James Smartb76f2dc2011-07-22 18:37:42 -04005938 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5939 * @phba: Pointer to HBA context object.
5940 * @type: The resource extent type.
5941 * @extnt_count: buffer to hold port extent count response
5942 * @extnt_size: buffer to hold port extent size response.
5943 *
5944 * This function calls the port to read the host allocated extents
5945 * for a particular type.
5946 **/
5947int
5948lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5949 uint16_t *extnt_cnt, uint16_t *extnt_size)
5950{
5951 bool emb;
5952 int rc = 0;
5953 uint16_t curr_blks = 0;
5954 uint32_t req_len, emb_len;
5955 uint32_t alloc_len, mbox_tmo;
5956 struct list_head *blk_list_head;
5957 struct lpfc_rsrc_blks *rsrc_blk;
5958 LPFC_MBOXQ_t *mbox;
5959 void *virtaddr = NULL;
5960 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5961 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5962 union lpfc_sli4_cfg_shdr *shdr;
5963
5964 switch (type) {
5965 case LPFC_RSC_TYPE_FCOE_VPI:
5966 blk_list_head = &phba->lpfc_vpi_blk_list;
5967 break;
5968 case LPFC_RSC_TYPE_FCOE_XRI:
5969 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5970 break;
5971 case LPFC_RSC_TYPE_FCOE_VFI:
5972 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5973 break;
5974 case LPFC_RSC_TYPE_FCOE_RPI:
5975 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5976 break;
5977 default:
5978 return -EIO;
5979 }
5980
5981 /* Count the number of extents currently allocatd for this type. */
5982 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5983 if (curr_blks == 0) {
5984 /*
5985 * The GET_ALLOCATED mailbox does not return the size,
5986 * just the count. The size should be just the size
5987 * stored in the current allocated block and all sizes
5988 * for an extent type are the same so set the return
5989 * value now.
5990 */
5991 *extnt_size = rsrc_blk->rsrc_size;
5992 }
5993 curr_blks++;
5994 }
5995
James Smartb76f2dc2011-07-22 18:37:42 -04005996 /*
5997 * Calculate the size of an embedded mailbox. The uint32_t
5998 * accounts for extents-specific word.
5999 */
6000 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
6001 sizeof(uint32_t);
6002
6003 /*
6004 * Presume the allocation and response will fit into an embedded
6005 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6006 */
6007 emb = LPFC_SLI4_MBX_EMBED;
6008 req_len = emb_len;
6009 if (req_len > emb_len) {
6010 req_len = curr_blks * sizeof(uint16_t) +
6011 sizeof(union lpfc_sli4_cfg_shdr) +
6012 sizeof(uint32_t);
6013 emb = LPFC_SLI4_MBX_NEMBED;
6014 }
6015
6016 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6017 if (!mbox)
6018 return -ENOMEM;
6019 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
6020
6021 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
6022 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
6023 req_len, emb);
6024 if (alloc_len < req_len) {
6025 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6026 "2983 Allocated DMA memory size (x%x) is "
6027 "less than the requested DMA memory "
6028 "size (x%x)\n", alloc_len, req_len);
6029 rc = -ENOMEM;
6030 goto err_exit;
6031 }
6032 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
6033 if (unlikely(rc)) {
6034 rc = -EIO;
6035 goto err_exit;
6036 }
6037
6038 if (!phba->sli4_hba.intr_enable)
6039 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
6040 else {
James Smarta183a152011-10-10 21:32:43 -04006041 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smartb76f2dc2011-07-22 18:37:42 -04006042 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
6043 }
6044
6045 if (unlikely(rc)) {
6046 rc = -EIO;
6047 goto err_exit;
6048 }
6049
6050 /*
6051 * Figure out where the response is located. Then get local pointers
6052 * to the response data. The port does not guarantee to respond to
6053 * all extents counts request so update the local variable with the
6054 * allocated count from the port.
6055 */
6056 if (emb == LPFC_SLI4_MBX_EMBED) {
6057 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
6058 shdr = &rsrc_ext->header.cfg_shdr;
6059 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
6060 } else {
6061 virtaddr = mbox->sge_array->addr[0];
6062 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
6063 shdr = &n_rsrc->cfg_shdr;
6064 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
6065 }
6066
6067 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
6068 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
6069 "2984 Failed to read allocated resources "
6070 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6071 type,
6072 bf_get(lpfc_mbox_hdr_status, &shdr->response),
6073 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
6074 rc = -EIO;
6075 goto err_exit;
6076 }
6077 err_exit:
6078 lpfc_sli4_mbox_cmd_free(phba, mbox);
6079 return rc;
6080}
6081
6082/**
James Smart8a9d2e82012-05-09 21:16:12 -04006083 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6084 * @phba: pointer to lpfc hba data structure.
6085 *
6086 * This routine walks the list of els buffers that have been allocated and
6087 * repost them to the port by using SGL block post. This is needed after a
6088 * pci_function_reset/warm_start or start. It attempts to construct blocks
6089 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6090 * SGL block post mailbox commands to post them to the port. For single els
6091 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6092 * mailbox command for posting.
6093 *
6094 * Returns: 0 = success, non-zero failure.
6095 **/
6096static int
6097lpfc_sli4_repost_els_sgl_list(struct lpfc_hba *phba)
6098{
6099 struct lpfc_sglq *sglq_entry = NULL;
6100 struct lpfc_sglq *sglq_entry_next = NULL;
6101 struct lpfc_sglq *sglq_entry_first = NULL;
James Smart711ea882013-04-17 20:18:29 -04006102 int status, total_cnt, post_cnt = 0, num_posted = 0, block_cnt = 0;
James Smart8a9d2e82012-05-09 21:16:12 -04006103 int last_xritag = NO_XRI;
James Smartdafe8ce2014-09-03 12:56:40 -04006104 struct lpfc_sli_ring *pring;
James Smart8a9d2e82012-05-09 21:16:12 -04006105 LIST_HEAD(prep_sgl_list);
6106 LIST_HEAD(blck_sgl_list);
6107 LIST_HEAD(allc_sgl_list);
6108 LIST_HEAD(post_sgl_list);
6109 LIST_HEAD(free_sgl_list);
6110
James Smartdafe8ce2014-09-03 12:56:40 -04006111 pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart38c20672013-03-01 16:37:44 -05006112 spin_lock_irq(&phba->hbalock);
James Smartdafe8ce2014-09-03 12:56:40 -04006113 spin_lock(&pring->ring_lock);
James Smart8a9d2e82012-05-09 21:16:12 -04006114 list_splice_init(&phba->sli4_hba.lpfc_sgl_list, &allc_sgl_list);
James Smartdafe8ce2014-09-03 12:56:40 -04006115 spin_unlock(&pring->ring_lock);
James Smart38c20672013-03-01 16:37:44 -05006116 spin_unlock_irq(&phba->hbalock);
James Smart8a9d2e82012-05-09 21:16:12 -04006117
James Smart711ea882013-04-17 20:18:29 -04006118 total_cnt = phba->sli4_hba.els_xri_cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006119 list_for_each_entry_safe(sglq_entry, sglq_entry_next,
6120 &allc_sgl_list, list) {
6121 list_del_init(&sglq_entry->list);
6122 block_cnt++;
6123 if ((last_xritag != NO_XRI) &&
6124 (sglq_entry->sli4_xritag != last_xritag + 1)) {
6125 /* a hole in xri block, form a sgl posting block */
6126 list_splice_init(&prep_sgl_list, &blck_sgl_list);
6127 post_cnt = block_cnt - 1;
6128 /* prepare list for next posting block */
6129 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6130 block_cnt = 1;
6131 } else {
6132 /* prepare list for next posting block */
6133 list_add_tail(&sglq_entry->list, &prep_sgl_list);
6134 /* enough sgls for non-embed sgl mbox command */
6135 if (block_cnt == LPFC_NEMBED_MBOX_SGL_CNT) {
6136 list_splice_init(&prep_sgl_list,
6137 &blck_sgl_list);
6138 post_cnt = block_cnt;
6139 block_cnt = 0;
6140 }
6141 }
6142 num_posted++;
6143
6144 /* keep track of last sgl's xritag */
6145 last_xritag = sglq_entry->sli4_xritag;
6146
6147 /* end of repost sgl list condition for els buffers */
6148 if (num_posted == phba->sli4_hba.els_xri_cnt) {
6149 if (post_cnt == 0) {
6150 list_splice_init(&prep_sgl_list,
6151 &blck_sgl_list);
6152 post_cnt = block_cnt;
6153 } else if (block_cnt == 1) {
6154 status = lpfc_sli4_post_sgl(phba,
6155 sglq_entry->phys, 0,
6156 sglq_entry->sli4_xritag);
6157 if (!status) {
6158 /* successful, put sgl to posted list */
6159 list_add_tail(&sglq_entry->list,
6160 &post_sgl_list);
6161 } else {
6162 /* Failure, put sgl to free list */
6163 lpfc_printf_log(phba, KERN_WARNING,
6164 LOG_SLI,
6165 "3159 Failed to post els "
6166 "sgl, xritag:x%x\n",
6167 sglq_entry->sli4_xritag);
6168 list_add_tail(&sglq_entry->list,
6169 &free_sgl_list);
James Smart711ea882013-04-17 20:18:29 -04006170 total_cnt--;
James Smart8a9d2e82012-05-09 21:16:12 -04006171 }
6172 }
6173 }
6174
6175 /* continue until a nembed page worth of sgls */
6176 if (post_cnt == 0)
6177 continue;
6178
6179 /* post the els buffer list sgls as a block */
6180 status = lpfc_sli4_post_els_sgl_list(phba, &blck_sgl_list,
6181 post_cnt);
6182
6183 if (!status) {
6184 /* success, put sgl list to posted sgl list */
6185 list_splice_init(&blck_sgl_list, &post_sgl_list);
6186 } else {
6187 /* Failure, put sgl list to free sgl list */
6188 sglq_entry_first = list_first_entry(&blck_sgl_list,
6189 struct lpfc_sglq,
6190 list);
6191 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
6192 "3160 Failed to post els sgl-list, "
6193 "xritag:x%x-x%x\n",
6194 sglq_entry_first->sli4_xritag,
6195 (sglq_entry_first->sli4_xritag +
6196 post_cnt - 1));
6197 list_splice_init(&blck_sgl_list, &free_sgl_list);
James Smart711ea882013-04-17 20:18:29 -04006198 total_cnt -= post_cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006199 }
6200
6201 /* don't reset xirtag due to hole in xri block */
6202 if (block_cnt == 0)
6203 last_xritag = NO_XRI;
6204
6205 /* reset els sgl post count for next round of posting */
6206 post_cnt = 0;
6207 }
James Smart711ea882013-04-17 20:18:29 -04006208 /* update the number of XRIs posted for ELS */
6209 phba->sli4_hba.els_xri_cnt = total_cnt;
James Smart8a9d2e82012-05-09 21:16:12 -04006210
6211 /* free the els sgls failed to post */
6212 lpfc_free_sgl_list(phba, &free_sgl_list);
6213
6214 /* push els sgls posted to the availble list */
6215 if (!list_empty(&post_sgl_list)) {
James Smart38c20672013-03-01 16:37:44 -05006216 spin_lock_irq(&phba->hbalock);
James Smartdafe8ce2014-09-03 12:56:40 -04006217 spin_lock(&pring->ring_lock);
James Smart8a9d2e82012-05-09 21:16:12 -04006218 list_splice_init(&post_sgl_list,
6219 &phba->sli4_hba.lpfc_sgl_list);
James Smartdafe8ce2014-09-03 12:56:40 -04006220 spin_unlock(&pring->ring_lock);
James Smart38c20672013-03-01 16:37:44 -05006221 spin_unlock_irq(&phba->hbalock);
James Smart8a9d2e82012-05-09 21:16:12 -04006222 } else {
6223 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6224 "3161 Failure to post els sgl to port.\n");
6225 return -EIO;
6226 }
6227 return 0;
6228}
6229
6230/**
James Smartda0436e2009-05-22 14:51:39 -04006231 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6232 * @phba: Pointer to HBA context object.
6233 *
6234 * This function is the main SLI4 device intialization PCI function. This
6235 * function is called by the HBA intialization code, HBA reset code and
6236 * HBA error attention handler code. Caller is not required to hold any
6237 * locks.
6238 **/
6239int
6240lpfc_sli4_hba_setup(struct lpfc_hba *phba)
6241{
6242 int rc;
6243 LPFC_MBOXQ_t *mboxq;
6244 struct lpfc_mqe *mqe;
6245 uint8_t *vpd;
6246 uint32_t vpd_size;
6247 uint32_t ftr_rsp = 0;
6248 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
6249 struct lpfc_vport *vport = phba->pport;
6250 struct lpfc_dmabuf *mp;
6251
6252 /* Perform a PCI function reset to start from clean */
6253 rc = lpfc_pci_function_reset(phba);
6254 if (unlikely(rc))
6255 return -ENODEV;
6256
6257 /* Check the HBA Host Status Register for readyness */
6258 rc = lpfc_sli4_post_status_check(phba);
6259 if (unlikely(rc))
6260 return -ENODEV;
6261 else {
6262 spin_lock_irq(&phba->hbalock);
6263 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
6264 spin_unlock_irq(&phba->hbalock);
6265 }
6266
6267 /*
6268 * Allocate a single mailbox container for initializing the
6269 * port.
6270 */
6271 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
6272 if (!mboxq)
6273 return -ENOMEM;
6274
James Smartda0436e2009-05-22 14:51:39 -04006275 /* Issue READ_REV to collect vpd and FW information. */
James Smart49198b32010-04-06 15:04:33 -04006276 vpd_size = SLI4_PAGE_SIZE;
James Smartda0436e2009-05-22 14:51:39 -04006277 vpd = kzalloc(vpd_size, GFP_KERNEL);
6278 if (!vpd) {
6279 rc = -ENOMEM;
6280 goto out_free_mbox;
6281 }
6282
6283 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
James Smart76a95d72010-11-20 23:11:48 -05006284 if (unlikely(rc)) {
6285 kfree(vpd);
6286 goto out_free_mbox;
6287 }
James Smart572709e2013-07-15 18:32:43 -04006288
James Smartda0436e2009-05-22 14:51:39 -04006289 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04006290 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
6291 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
James Smart76a95d72010-11-20 23:11:48 -05006292 phba->hba_flag |= HBA_FCOE_MODE;
6293 else
6294 phba->hba_flag &= ~HBA_FCOE_MODE;
James Smart45ed1192009-10-02 15:17:02 -04006295
6296 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
6297 LPFC_DCBX_CEE_MODE)
6298 phba->hba_flag |= HBA_FIP_SUPPORT;
6299 else
6300 phba->hba_flag &= ~HBA_FIP_SUPPORT;
6301
James Smart4f2e66c2012-05-09 21:17:07 -04006302 phba->hba_flag &= ~HBA_FCP_IOQ_FLUSH;
6303
James Smartc31098c2011-04-16 11:03:33 -04006304 if (phba->sli_rev != LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04006305 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6306 "0376 READ_REV Error. SLI Level %d "
6307 "FCoE enabled %d\n",
James Smart76a95d72010-11-20 23:11:48 -05006308 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
James Smartda0436e2009-05-22 14:51:39 -04006309 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006310 kfree(vpd);
6311 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006312 }
James Smartcd1c8302011-10-10 21:33:25 -04006313
6314 /*
James Smartff78d8f2011-12-13 13:21:35 -05006315 * Continue initialization with default values even if driver failed
6316 * to read FCoE param config regions, only read parameters if the
6317 * board is FCoE
6318 */
6319 if (phba->hba_flag & HBA_FCOE_MODE &&
6320 lpfc_sli4_read_fcoe_params(phba))
6321 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
6322 "2570 Failed to read FCoE parameters\n");
6323
6324 /*
James Smartcd1c8302011-10-10 21:33:25 -04006325 * Retrieve sli4 device physical port name, failure of doing it
6326 * is considered as non-fatal.
6327 */
6328 rc = lpfc_sli4_retrieve_pport_name(phba);
6329 if (!rc)
6330 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6331 "3080 Successful retrieving SLI4 device "
6332 "physical port name: %s.\n", phba->Port);
6333
James Smartda0436e2009-05-22 14:51:39 -04006334 /*
6335 * Evaluate the read rev and vpd data. Populate the driver
6336 * state with the results. If this routine fails, the failure
6337 * is not fatal as the driver will use generic values.
6338 */
6339 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
6340 if (unlikely(!rc)) {
6341 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6342 "0377 Error %d parsing vpd. "
6343 "Using defaults.\n", rc);
6344 rc = 0;
6345 }
James Smart76a95d72010-11-20 23:11:48 -05006346 kfree(vpd);
James Smartda0436e2009-05-22 14:51:39 -04006347
James Smartf1126682009-06-10 17:22:44 -04006348 /* Save information as VPD data */
6349 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
6350 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
6351 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
6352 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
6353 &mqe->un.read_rev);
6354 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
6355 &mqe->un.read_rev);
6356 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
6357 &mqe->un.read_rev);
6358 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
6359 &mqe->un.read_rev);
6360 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
6361 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
6362 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
6363 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
6364 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
6365 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
6366 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
6367 "(%d):0380 READ_REV Status x%x "
6368 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6369 mboxq->vport ? mboxq->vport->vpi : 0,
6370 bf_get(lpfc_mqe_status, mqe),
6371 phba->vpd.rev.opFwName,
6372 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
6373 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04006374
James Smart572709e2013-07-15 18:32:43 -04006375 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6376 rc = (phba->sli4_hba.max_cfg_param.max_xri >> 3);
6377 if (phba->pport->cfg_lun_queue_depth > rc) {
6378 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
6379 "3362 LUN queue depth changed from %d to %d\n",
6380 phba->pport->cfg_lun_queue_depth, rc);
6381 phba->pport->cfg_lun_queue_depth = rc;
6382 }
6383
6384
James Smartda0436e2009-05-22 14:51:39 -04006385 /*
6386 * Discover the port's supported feature set and match it against the
6387 * hosts requests.
6388 */
6389 lpfc_request_features(phba, mboxq);
6390 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6391 if (unlikely(rc)) {
6392 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006393 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006394 }
6395
6396 /*
6397 * The port must support FCP initiator mode as this is the
6398 * only mode running in the host.
6399 */
6400 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6401 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6402 "0378 No support for fcpi mode.\n");
6403 ftr_rsp++;
6404 }
James Smartfedd3b72011-02-16 12:39:24 -05006405 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6406 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6407 else
6408 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
James Smartda0436e2009-05-22 14:51:39 -04006409 /*
6410 * If the port cannot support the host's requested features
6411 * then turn off the global config parameters to disable the
6412 * feature in the driver. This is not a fatal error.
6413 */
James Smartbf086112011-08-21 21:48:13 -04006414 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6415 if (phba->cfg_enable_bg) {
6416 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6417 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6418 else
6419 ftr_rsp++;
6420 }
James Smartda0436e2009-05-22 14:51:39 -04006421
6422 if (phba->max_vpi && phba->cfg_enable_npiv &&
6423 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6424 ftr_rsp++;
6425
6426 if (ftr_rsp) {
6427 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6428 "0379 Feature Mismatch Data: x%08x %08x "
6429 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6430 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6431 phba->cfg_enable_npiv, phba->max_vpi);
6432 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6433 phba->cfg_enable_bg = 0;
6434 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6435 phba->cfg_enable_npiv = 0;
6436 }
6437
6438 /* These SLI3 features are assumed in SLI4 */
6439 spin_lock_irq(&phba->hbalock);
6440 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6441 spin_unlock_irq(&phba->hbalock);
6442
James Smart6d368e52011-05-24 11:44:12 -04006443 /*
6444 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6445 * calls depends on these resources to complete port setup.
6446 */
6447 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6448 if (rc) {
6449 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6450 "2920 Failed to alloc Resource IDs "
6451 "rc = x%x\n", rc);
6452 goto out_free_mbox;
6453 }
6454
James Smartda0436e2009-05-22 14:51:39 -04006455 /* Read the port's service parameters. */
James Smart9f1177a2010-02-26 14:12:57 -05006456 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6457 if (rc) {
6458 phba->link_state = LPFC_HBA_ERROR;
6459 rc = -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -05006460 goto out_free_mbox;
James Smart9f1177a2010-02-26 14:12:57 -05006461 }
6462
James Smartda0436e2009-05-22 14:51:39 -04006463 mboxq->vport = vport;
6464 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6465 mp = (struct lpfc_dmabuf *) mboxq->context1;
6466 if (rc == MBX_SUCCESS) {
6467 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6468 rc = 0;
6469 }
6470
6471 /*
6472 * This memory was allocated by the lpfc_read_sparam routine. Release
6473 * it to the mbuf pool.
6474 */
6475 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6476 kfree(mp);
6477 mboxq->context1 = NULL;
6478 if (unlikely(rc)) {
6479 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6480 "0382 READ_SPARAM command failed "
6481 "status %d, mbxStatus x%x\n",
6482 rc, bf_get(lpfc_mqe_status, mqe));
6483 phba->link_state = LPFC_HBA_ERROR;
6484 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006485 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006486 }
6487
James Smart05580562011-05-24 11:40:48 -04006488 lpfc_update_vport_wwn(vport);
James Smartda0436e2009-05-22 14:51:39 -04006489
6490 /* Update the fc_host data structures with new wwn. */
6491 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6492 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6493
James Smart8a9d2e82012-05-09 21:16:12 -04006494 /* update host els and scsi xri-sgl sizes and mappings */
6495 rc = lpfc_sli4_xri_sgl_update(phba);
6496 if (unlikely(rc)) {
6497 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6498 "1400 Failed to update xri-sgl size and "
6499 "mapping: %d\n", rc);
6500 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006501 }
6502
James Smart8a9d2e82012-05-09 21:16:12 -04006503 /* register the els sgl pool to the port */
6504 rc = lpfc_sli4_repost_els_sgl_list(phba);
6505 if (unlikely(rc)) {
6506 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6507 "0582 Error %d during els sgl post "
6508 "operation\n", rc);
6509 rc = -ENODEV;
6510 goto out_free_mbox;
6511 }
6512
6513 /* register the allocated scsi sgl pool to the port */
James Smartda0436e2009-05-22 14:51:39 -04006514 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6515 if (unlikely(rc)) {
James Smart6d368e52011-05-24 11:44:12 -04006516 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04006517 "0383 Error %d during scsi sgl post "
6518 "operation\n", rc);
James Smartda0436e2009-05-22 14:51:39 -04006519 /* Some Scsi buffers were moved to the abort scsi list */
6520 /* A pci function reset will repost them */
6521 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05006522 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006523 }
6524
6525 /* Post the rpi header region to the device. */
6526 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6527 if (unlikely(rc)) {
6528 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6529 "0393 Error %d during rpi post operation\n",
6530 rc);
6531 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05006532 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006533 }
James Smart97f2ecf2012-03-01 22:35:23 -05006534 lpfc_sli4_node_prep(phba);
James Smartda0436e2009-05-22 14:51:39 -04006535
James Smart5350d872011-10-10 21:33:49 -04006536 /* Create all the SLI4 queues */
6537 rc = lpfc_sli4_queue_create(phba);
6538 if (rc) {
6539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6540 "3089 Failed to allocate queues\n");
6541 rc = -ENODEV;
6542 goto out_stop_timers;
6543 }
James Smartda0436e2009-05-22 14:51:39 -04006544 /* Set up all the queues to the device */
6545 rc = lpfc_sli4_queue_setup(phba);
6546 if (unlikely(rc)) {
6547 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6548 "0381 Error %d during queue setup.\n ", rc);
James Smart5350d872011-10-10 21:33:49 -04006549 goto out_destroy_queue;
James Smartda0436e2009-05-22 14:51:39 -04006550 }
6551
6552 /* Arm the CQs and then EQs on device */
6553 lpfc_sli4_arm_cqeq_intr(phba);
6554
6555 /* Indicate device interrupt mode */
6556 phba->sli4_hba.intr_enable = 1;
6557
6558 /* Allow asynchronous mailbox command to go through */
6559 spin_lock_irq(&phba->hbalock);
6560 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6561 spin_unlock_irq(&phba->hbalock);
6562
6563 /* Post receive buffers to the device */
6564 lpfc_sli4_rb_setup(phba);
6565
James Smartfc2b9892010-02-26 14:15:29 -05006566 /* Reset HBA FCF states after HBA reset */
6567 phba->fcf.fcf_flag = 0;
6568 phba->fcf.current_rec.flag = 0;
6569
James Smartda0436e2009-05-22 14:51:39 -04006570 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04006571 mod_timer(&vport->els_tmofunc,
James Smart256ec0d2013-04-17 20:14:58 -04006572 jiffies + msecs_to_jiffies(1000 * (phba->fc_ratov * 2)));
James Smartda0436e2009-05-22 14:51:39 -04006573
6574 /* Start heart beat timer */
6575 mod_timer(&phba->hb_tmofunc,
James Smart256ec0d2013-04-17 20:14:58 -04006576 jiffies + msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL));
James Smartda0436e2009-05-22 14:51:39 -04006577 phba->hb_outstanding = 0;
6578 phba->last_completion_time = jiffies;
6579
6580 /* Start error attention (ERATT) polling timer */
James Smart256ec0d2013-04-17 20:14:58 -04006581 mod_timer(&phba->eratt_poll,
6582 jiffies + msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL));
James Smartda0436e2009-05-22 14:51:39 -04006583
James Smart75baf692010-06-08 18:31:21 -04006584 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6585 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6586 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6587 if (!rc) {
6588 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6589 "2829 This device supports "
6590 "Advanced Error Reporting (AER)\n");
6591 spin_lock_irq(&phba->hbalock);
6592 phba->hba_flag |= HBA_AER_ENABLED;
6593 spin_unlock_irq(&phba->hbalock);
6594 } else {
6595 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6596 "2830 This device does not support "
6597 "Advanced Error Reporting (AER)\n");
6598 phba->cfg_aer_support = 0;
6599 }
James Smart0a96e972011-07-22 18:37:28 -04006600 rc = 0;
James Smart75baf692010-06-08 18:31:21 -04006601 }
6602
James Smart76a95d72010-11-20 23:11:48 -05006603 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6604 /*
6605 * The FC Port needs to register FCFI (index 0)
6606 */
6607 lpfc_reg_fcfi(phba, mboxq);
6608 mboxq->vport = phba->pport;
6609 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart9589b0622011-04-16 11:03:17 -04006610 if (rc != MBX_SUCCESS)
James Smart76a95d72010-11-20 23:11:48 -05006611 goto out_unset_queue;
James Smart9589b0622011-04-16 11:03:17 -04006612 rc = 0;
6613 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6614 &mboxq->u.mqe.un.reg_fcfi);
James Smart026abb82011-12-13 13:20:45 -05006615
6616 /* Check if the port is configured to be disabled */
6617 lpfc_sli_read_link_ste(phba);
James Smart76a95d72010-11-20 23:11:48 -05006618 }
James Smart026abb82011-12-13 13:20:45 -05006619
James Smartda0436e2009-05-22 14:51:39 -04006620 /*
6621 * The port is ready, set the host's link state to LINK_DOWN
6622 * in preparation for link interrupts.
6623 */
James Smartda0436e2009-05-22 14:51:39 -04006624 spin_lock_irq(&phba->hbalock);
6625 phba->link_state = LPFC_LINK_DOWN;
6626 spin_unlock_irq(&phba->hbalock);
James Smart026abb82011-12-13 13:20:45 -05006627 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6628 (phba->hba_flag & LINK_DISABLED)) {
6629 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6630 "3103 Adapter Link is disabled.\n");
6631 lpfc_down_link(phba, mboxq);
6632 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6633 if (rc != MBX_SUCCESS) {
6634 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6635 "3104 Adapter failed to issue "
6636 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6637 goto out_unset_queue;
6638 }
6639 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
James Smart1b511972011-12-13 13:23:09 -05006640 /* don't perform init_link on SLI4 FC port loopback test */
6641 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6642 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6643 if (rc)
6644 goto out_unset_queue;
6645 }
James Smart5350d872011-10-10 21:33:49 -04006646 }
6647 mempool_free(mboxq, phba->mbox_mem_pool);
6648 return rc;
James Smart76a95d72010-11-20 23:11:48 -05006649out_unset_queue:
James Smartda0436e2009-05-22 14:51:39 -04006650 /* Unset all the queues set up in this routine when error out */
James Smart5350d872011-10-10 21:33:49 -04006651 lpfc_sli4_queue_unset(phba);
6652out_destroy_queue:
6653 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04006654out_stop_timers:
James Smart5350d872011-10-10 21:33:49 -04006655 lpfc_stop_hba_timers(phba);
James Smartda0436e2009-05-22 14:51:39 -04006656out_free_mbox:
6657 mempool_free(mboxq, phba->mbox_mem_pool);
6658 return rc;
6659}
James Smarte59058c2008-08-24 21:49:00 -04006660
6661/**
James Smart3621a712009-04-06 18:47:14 -04006662 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04006663 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05006664 *
James Smarte59058c2008-08-24 21:49:00 -04006665 * This is the callback function for mailbox timer. The mailbox
6666 * timer is armed when a new mailbox command is issued and the timer
6667 * is deleted when the mailbox complete. The function is called by
6668 * the kernel timer code when a mailbox does not complete within
6669 * expected time. This function wakes up the worker thread to
6670 * process the mailbox timeout and returns. All the processing is
6671 * done by the worker thread function lpfc_mbox_timeout_handler.
6672 **/
dea31012005-04-17 16:05:31 -05006673void
6674lpfc_mbox_timeout(unsigned long ptr)
6675{
James Smart92d7f7b2007-06-17 19:56:38 -05006676 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05006677 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05006678 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05006679
James Smart2e0fef82007-06-17 19:56:36 -05006680 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05006681 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05006682 if (!tmo_posted)
6683 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6684 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6685
James Smart5e9d9b82008-06-14 22:52:53 -04006686 if (!tmo_posted)
6687 lpfc_worker_wake_up(phba);
6688 return;
dea31012005-04-17 16:05:31 -05006689}
6690
James Smarte8d3c3b2013-10-10 12:21:30 -04006691/**
6692 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6693 * are pending
6694 * @phba: Pointer to HBA context object.
6695 *
6696 * This function checks if any mailbox completions are present on the mailbox
6697 * completion queue.
6698 **/
6699bool
6700lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
6701{
6702
6703 uint32_t idx;
6704 struct lpfc_queue *mcq;
6705 struct lpfc_mcqe *mcqe;
6706 bool pending_completions = false;
6707
6708 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6709 return false;
6710
6711 /* Check for completions on mailbox completion queue */
6712
6713 mcq = phba->sli4_hba.mbx_cq;
6714 idx = mcq->hba_index;
6715 while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
6716 mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
6717 if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
6718 (!bf_get_le32(lpfc_trailer_async, mcqe))) {
6719 pending_completions = true;
6720 break;
6721 }
6722 idx = (idx + 1) % mcq->entry_count;
6723 if (mcq->hba_index == idx)
6724 break;
6725 }
6726 return pending_completions;
6727
6728}
6729
6730/**
6731 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6732 * that were missed.
6733 * @phba: Pointer to HBA context object.
6734 *
6735 * For sli4, it is possible to miss an interrupt. As such mbox completions
6736 * maybe missed causing erroneous mailbox timeouts to occur. This function
6737 * checks to see if mbox completions are on the mailbox completion queue
6738 * and will process all the completions associated with the eq for the
6739 * mailbox completion queue.
6740 **/
6741bool
6742lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
6743{
6744
6745 uint32_t eqidx;
6746 struct lpfc_queue *fpeq = NULL;
6747 struct lpfc_eqe *eqe;
6748 bool mbox_pending;
6749
6750 if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
6751 return false;
6752
6753 /* Find the eq associated with the mcq */
6754
6755 if (phba->sli4_hba.hba_eq)
6756 for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
6757 if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
6758 phba->sli4_hba.mbx_cq->assoc_qid) {
6759 fpeq = phba->sli4_hba.hba_eq[eqidx];
6760 break;
6761 }
6762 if (!fpeq)
6763 return false;
6764
6765 /* Turn off interrupts from this EQ */
6766
6767 lpfc_sli4_eq_clr_intr(fpeq);
6768
6769 /* Check to see if a mbox completion is pending */
6770
6771 mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
6772
6773 /*
6774 * If a mbox completion is pending, process all the events on EQ
6775 * associated with the mbox completion queue (this could include
6776 * mailbox commands, async events, els commands, receive queue data
6777 * and fcp commands)
6778 */
6779
6780 if (mbox_pending)
6781 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
6782 lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
6783 fpeq->EQ_processed++;
6784 }
6785
6786 /* Always clear and re-arm the EQ */
6787
6788 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
6789
6790 return mbox_pending;
6791
6792}
James Smarte59058c2008-08-24 21:49:00 -04006793
6794/**
James Smart3621a712009-04-06 18:47:14 -04006795 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04006796 * @phba: Pointer to HBA context object.
6797 *
6798 * This function is called from worker thread when a mailbox command times out.
6799 * The caller is not required to hold any locks. This function will reset the
6800 * HBA and recover all the pending commands.
6801 **/
dea31012005-04-17 16:05:31 -05006802void
6803lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6804{
James Smart2e0fef82007-06-17 19:56:36 -05006805 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smarteb016562014-09-03 12:58:06 -04006806 MAILBOX_t *mb = NULL;
6807
James Smart1dcb58e2007-04-25 09:51:30 -04006808 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006809
James Smarte8d3c3b2013-10-10 12:21:30 -04006810 /* If the mailbox completed, process the completion and return */
6811 if (lpfc_sli4_process_missed_mbox_completions(phba))
6812 return;
6813
James Smarteb016562014-09-03 12:58:06 -04006814 if (pmbox != NULL)
6815 mb = &pmbox->u.mb;
James Smarta257bf92009-04-06 18:48:10 -04006816 /* Check the pmbox pointer first. There is a race condition
6817 * between the mbox timeout handler getting executed in the
6818 * worklist and the mailbox actually completing. When this
6819 * race condition occurs, the mbox_active will be NULL.
6820 */
6821 spin_lock_irq(&phba->hbalock);
6822 if (pmbox == NULL) {
6823 lpfc_printf_log(phba, KERN_WARNING,
6824 LOG_MBOX | LOG_SLI,
6825 "0353 Active Mailbox cleared - mailbox timeout "
6826 "exiting\n");
6827 spin_unlock_irq(&phba->hbalock);
6828 return;
6829 }
6830
dea31012005-04-17 16:05:31 -05006831 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05006832 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04006833 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05006834 mb->mbxCommand,
6835 phba->pport->port_state,
6836 phba->sli.sli_flag,
6837 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04006838 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006839
James Smart1dcb58e2007-04-25 09:51:30 -04006840 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6841 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
Lucas De Marchi25985ed2011-03-30 22:57:33 -03006842 * it to fail all outstanding SCSI IO.
James Smart1dcb58e2007-04-25 09:51:30 -04006843 */
James Smart2e0fef82007-06-17 19:56:36 -05006844 spin_lock_irq(&phba->pport->work_port_lock);
6845 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6846 spin_unlock_irq(&phba->pport->work_port_lock);
6847 spin_lock_irq(&phba->hbalock);
6848 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04006849 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05006850 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04006851
James Smartdb55fba2014-04-04 13:52:02 -04006852 lpfc_sli_abort_fcp_rings(phba);
James Smart1dcb58e2007-04-25 09:51:30 -04006853
6854 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006855 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04006856
6857 /* Reset the HBA device */
6858 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05006859}
6860
James Smarte59058c2008-08-24 21:49:00 -04006861/**
James Smart3772a992009-05-22 14:50:54 -04006862 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04006863 * @phba: Pointer to HBA context object.
6864 * @pmbox: Pointer to mailbox object.
6865 * @flag: Flag indicating how the mailbox need to be processed.
6866 *
6867 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04006868 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6869 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04006870 * The mailbox command can be submitted in polling mode, in which case
6871 * this function will wait in a polling loop for the completion of the
6872 * mailbox.
6873 * If the mailbox is submitted in no_wait mode (not polling) the
6874 * function will submit the command and returns immediately without waiting
6875 * for the mailbox completion. The no_wait is supported only when HBA
6876 * is in SLI2/SLI3 mode - interrupts are enabled.
6877 * The SLI interface allows only one mailbox pending at a time. If the
6878 * mailbox is issued in polling mode and there is already a mailbox
6879 * pending, then the function will return an error. If the mailbox is issued
6880 * in NO_WAIT mode and there is a mailbox pending already, the function
6881 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6882 * The sli layer owns the mailbox object until the completion of mailbox
6883 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6884 * return codes the caller owns the mailbox command after the return of
6885 * the function.
6886 **/
James Smart3772a992009-05-22 14:50:54 -04006887static int
6888lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6889 uint32_t flag)
dea31012005-04-17 16:05:31 -05006890{
Randy Dunlapbf07bde2013-02-22 10:23:54 -08006891 MAILBOX_t *mbx;
James Smart2e0fef82007-06-17 19:56:36 -05006892 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006893 uint32_t status, evtctr;
James Smart9940b972011-03-11 16:06:12 -05006894 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05006895 int i;
James Smart09372822008-01-11 01:52:54 -05006896 unsigned long timeout;
dea31012005-04-17 16:05:31 -05006897 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04006898 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05006899 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04006900 int processing_queue = 0;
6901
6902 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6903 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04006904 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04006905 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04006906 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6907 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6908 return MBX_SUCCESS;
6909 }
James Smart58da1ff2008-04-07 10:15:56 -04006910 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04006911 pmbox = lpfc_mbox_get(phba);
6912 if (!pmbox) {
6913 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6914 return MBX_SUCCESS;
6915 }
6916 }
dea31012005-04-17 16:05:31 -05006917
James Smarted957682007-06-17 19:56:37 -05006918 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05006919 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05006920 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04006921 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05006922 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05006923 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04006924 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04006925 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05006926 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04006927 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05006928 }
6929 }
6930
Linas Vepstas8d63f372007-02-14 14:28:36 -06006931 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04006932 if (unlikely(pci_channel_offline(phba->pcidev))) {
6933 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6934 goto out_not_finished;
6935 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06006936
James Smarta257bf92009-04-06 18:48:10 -04006937 /* If HBA has a deferred error attention, fail the iocb. */
6938 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6939 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6940 goto out_not_finished;
6941 }
6942
dea31012005-04-17 16:05:31 -05006943 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05006944
Randy Dunlapbf07bde2013-02-22 10:23:54 -08006945 mbx = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05006946 status = MBX_SUCCESS;
6947
James Smart2e0fef82007-06-17 19:56:36 -05006948 if (phba->link_state == LPFC_HBA_ERROR) {
6949 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05006950
6951 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006952 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6953 "(%d):0311 Mailbox command x%x cannot "
6954 "issue Data: x%x x%x\n",
6955 pmbox->vport ? pmbox->vport->vpi : 0,
6956 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006957 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05006958 }
6959
Randy Dunlapbf07bde2013-02-22 10:23:54 -08006960 if (mbx->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
James Smart9940b972011-03-11 16:06:12 -05006961 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6962 !(hc_copy & HC_MBINT_ENA)) {
6963 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6964 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart3772a992009-05-22 14:50:54 -04006965 "(%d):2528 Mailbox command x%x cannot "
6966 "issue Data: x%x x%x\n",
6967 pmbox->vport ? pmbox->vport->vpi : 0,
6968 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart9940b972011-03-11 16:06:12 -05006969 goto out_not_finished;
6970 }
James Smart92908312006-03-07 15:04:13 -05006971 }
6972
dea31012005-04-17 16:05:31 -05006973 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6974 /* Polling for a mbox command when another one is already active
6975 * is not allowed in SLI. Also, the driver must have established
6976 * SLI2 mode to queue and process multiple mbox commands.
6977 */
6978
6979 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05006980 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006981
6982 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006983 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6984 "(%d):2529 Mailbox command x%x "
6985 "cannot issue Data: x%x x%x\n",
6986 pmbox->vport ? pmbox->vport->vpi : 0,
6987 pmbox->u.mb.mbxCommand,
6988 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006989 goto out_not_finished;
dea31012005-04-17 16:05:31 -05006990 }
6991
James Smart3772a992009-05-22 14:50:54 -04006992 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05006993 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006994 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006995 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6996 "(%d):2530 Mailbox command x%x "
6997 "cannot issue Data: x%x x%x\n",
6998 pmbox->vport ? pmbox->vport->vpi : 0,
6999 pmbox->u.mb.mbxCommand,
7000 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007001 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007002 }
7003
dea31012005-04-17 16:05:31 -05007004 /* Another mailbox command is still being processed, queue this
7005 * command to be processed later.
7006 */
7007 lpfc_mbox_put(phba, pmbox);
7008
7009 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05007010 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007011 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007012 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05007013 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007014 mbx->mbxCommand, phba->pport->port_state,
James Smart92d7f7b2007-06-17 19:56:38 -05007015 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05007016
7017 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05007018 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007019
James Smart858c9f62007-06-17 19:56:39 -05007020 if (pmbox->vport) {
7021 lpfc_debugfs_disc_trc(pmbox->vport,
7022 LPFC_DISC_TRC_MBOX_VPORT,
7023 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007024 (uint32_t)mbx->mbxCommand,
7025 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007026 }
7027 else {
7028 lpfc_debugfs_disc_trc(phba->pport,
7029 LPFC_DISC_TRC_MBOX,
7030 "MBOX Bsy: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007031 (uint32_t)mbx->mbxCommand,
7032 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007033 }
7034
James Smart2e0fef82007-06-17 19:56:36 -05007035 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05007036 }
7037
dea31012005-04-17 16:05:31 -05007038 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7039
7040 /* If we are not polling, we MUST be in SLI2 mode */
7041 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04007042 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007043 (mbx->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05007044 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05007045 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05007046 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04007047 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7048 "(%d):2531 Mailbox command x%x "
7049 "cannot issue Data: x%x x%x\n",
7050 pmbox->vport ? pmbox->vport->vpi : 0,
7051 pmbox->u.mb.mbxCommand,
7052 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04007053 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007054 }
7055 /* timeout active mbox command */
James Smart256ec0d2013-04-17 20:14:58 -04007056 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7057 1000);
7058 mod_timer(&psli->mbox_tmo, jiffies + timeout);
dea31012005-04-17 16:05:31 -05007059 }
7060
7061 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05007062 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007063 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05007064 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007065 pmbox->vport ? pmbox->vport->vpi : 0,
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007066 mbx->mbxCommand, phba->pport->port_state,
James Smart92d7f7b2007-06-17 19:56:38 -05007067 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05007068
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007069 if (mbx->mbxCommand != MBX_HEARTBEAT) {
James Smart858c9f62007-06-17 19:56:39 -05007070 if (pmbox->vport) {
7071 lpfc_debugfs_disc_trc(pmbox->vport,
7072 LPFC_DISC_TRC_MBOX_VPORT,
7073 "MBOX Send vport: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007074 (uint32_t)mbx->mbxCommand,
7075 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007076 }
7077 else {
7078 lpfc_debugfs_disc_trc(phba->pport,
7079 LPFC_DISC_TRC_MBOX,
7080 "MBOX Send: cmd:x%x mb:x%x x%x",
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007081 (uint32_t)mbx->mbxCommand,
7082 mbx->un.varWords[0], mbx->un.varWords[1]);
James Smart858c9f62007-06-17 19:56:39 -05007083 }
7084 }
7085
dea31012005-04-17 16:05:31 -05007086 psli->slistat.mbox_cmd++;
7087 evtctr = psli->slistat.mbox_event;
7088
7089 /* next set own bit for the adapter and copy over command word */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007090 mbx->mbxOwner = OWN_CHIP;
dea31012005-04-17 16:05:31 -05007091
James Smart3772a992009-05-22 14:50:54 -04007092 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart7a470272010-03-15 11:25:20 -04007093 /* Populate mbox extension offset word. */
7094 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007095 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
James Smart7a470272010-03-15 11:25:20 -04007096 = (uint8_t *)phba->mbox_ext
7097 - (uint8_t *)phba->mbox;
7098 }
7099
7100 /* Copy the mailbox extension data */
7101 if (pmbox->in_ext_byte_len && pmbox->context2) {
7102 lpfc_sli_pcimem_bcopy(pmbox->context2,
7103 (uint8_t *)phba->mbox_ext,
7104 pmbox->in_ext_byte_len);
7105 }
7106 /* Copy command data to host SLIM area */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007107 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05007108 } else {
James Smart7a470272010-03-15 11:25:20 -04007109 /* Populate mbox extension offset word. */
7110 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007111 *(((uint32_t *)mbx) + pmbox->mbox_offset_word)
James Smart7a470272010-03-15 11:25:20 -04007112 = MAILBOX_HBA_EXT_OFFSET;
7113
7114 /* Copy the mailbox extension data */
7115 if (pmbox->in_ext_byte_len && pmbox->context2) {
7116 lpfc_memcpy_to_slim(phba->MBslimaddr +
7117 MAILBOX_HBA_EXT_OFFSET,
7118 pmbox->context2, pmbox->in_ext_byte_len);
7119
7120 }
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007121 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05007122 /* copy command data into host mbox for cmpl */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007123 lpfc_sli_pcimem_bcopy(mbx, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05007124 }
7125
7126 /* First copy mbox command data to HBA SLIM, skip past first
7127 word */
7128 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007129 lpfc_memcpy_to_slim(to_slim, &mbx->un.varWords[0],
dea31012005-04-17 16:05:31 -05007130 MAILBOX_CMD_SIZE - sizeof (uint32_t));
7131
7132 /* Next copy over first word, with mbxOwner set */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007133 ldata = *((uint32_t *)mbx);
dea31012005-04-17 16:05:31 -05007134 to_slim = phba->MBslimaddr;
7135 writel(ldata, to_slim);
7136 readl(to_slim); /* flush */
7137
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007138 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05007139 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04007140 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05007141 }
7142 }
7143
7144 wmb();
dea31012005-04-17 16:05:31 -05007145
7146 switch (flag) {
7147 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05007148 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05007149 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05007150 /* Interrupt board to do it */
7151 writel(CA_MBATT, phba->CAregaddr);
7152 readl(phba->CAregaddr); /* flush */
7153 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05007154 break;
7155
7156 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05007157 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05007158 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05007159 /* Interrupt board to do it */
7160 writel(CA_MBATT, phba->CAregaddr);
7161 readl(phba->CAregaddr); /* flush */
7162
James Smart3772a992009-05-22 14:50:54 -04007163 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007164 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04007165 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05007166 word0 = le32_to_cpu(word0);
7167 } else {
7168 /* First read mbox status word */
James Smart9940b972011-03-11 16:06:12 -05007169 if (lpfc_readl(phba->MBslimaddr, &word0)) {
7170 spin_unlock_irqrestore(&phba->hbalock,
7171 drvr_flag);
7172 goto out_not_finished;
7173 }
dea31012005-04-17 16:05:31 -05007174 }
7175
7176 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05007177 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7178 spin_unlock_irqrestore(&phba->hbalock,
7179 drvr_flag);
7180 goto out_not_finished;
7181 }
James Smarta183a152011-10-10 21:32:43 -04007182 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
7183 1000) + jiffies;
James Smart09372822008-01-11 01:52:54 -05007184 i = 0;
dea31012005-04-17 16:05:31 -05007185 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05007186 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
7187 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05007188 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05007189 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05007190 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05007191 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05007192 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04007193 goto out_not_finished;
dea31012005-04-17 16:05:31 -05007194 }
7195
7196 /* Check if we took a mbox interrupt while we were
7197 polling */
7198 if (((word0 & OWN_CHIP) != OWN_CHIP)
7199 && (evtctr != psli->slistat.mbox_event))
7200 break;
7201
James Smart09372822008-01-11 01:52:54 -05007202 if (i++ > 10) {
7203 spin_unlock_irqrestore(&phba->hbalock,
7204 drvr_flag);
7205 msleep(1);
7206 spin_lock_irqsave(&phba->hbalock, drvr_flag);
7207 }
dea31012005-04-17 16:05:31 -05007208
James Smart3772a992009-05-22 14:50:54 -04007209 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007210 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04007211 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05007212 word0 = le32_to_cpu(word0);
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007213 if (mbx->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05007214 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04007215 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05007216 /* Check real SLIM for any errors */
7217 slimword0 = readl(phba->MBslimaddr);
7218 slimmb = (MAILBOX_t *) & slimword0;
7219 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
7220 && slimmb->mbxStatus) {
7221 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04007222 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05007223 word0 = slimword0;
7224 }
7225 }
7226 } else {
7227 /* First copy command data */
7228 word0 = readl(phba->MBslimaddr);
7229 }
7230 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05007231 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
7232 spin_unlock_irqrestore(&phba->hbalock,
7233 drvr_flag);
7234 goto out_not_finished;
7235 }
dea31012005-04-17 16:05:31 -05007236 }
7237
James Smart3772a992009-05-22 14:50:54 -04007238 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05007239 /* copy results back to user */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007240 lpfc_sli_pcimem_bcopy(phba->mbox, mbx, MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04007241 /* Copy the mailbox extension data */
7242 if (pmbox->out_ext_byte_len && pmbox->context2) {
7243 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
7244 pmbox->context2,
7245 pmbox->out_ext_byte_len);
7246 }
dea31012005-04-17 16:05:31 -05007247 } else {
7248 /* First copy command data */
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007249 lpfc_memcpy_from_slim(mbx, phba->MBslimaddr,
dea31012005-04-17 16:05:31 -05007250 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04007251 /* Copy the mailbox extension data */
7252 if (pmbox->out_ext_byte_len && pmbox->context2) {
7253 lpfc_memcpy_from_slim(pmbox->context2,
7254 phba->MBslimaddr +
7255 MAILBOX_HBA_EXT_OFFSET,
7256 pmbox->out_ext_byte_len);
dea31012005-04-17 16:05:31 -05007257 }
7258 }
7259
7260 writel(HA_MBATT, phba->HAregaddr);
7261 readl(phba->HAregaddr); /* flush */
7262
7263 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
Randy Dunlapbf07bde2013-02-22 10:23:54 -08007264 status = mbx->mbxStatus;
dea31012005-04-17 16:05:31 -05007265 }
7266
James Smart2e0fef82007-06-17 19:56:36 -05007267 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
7268 return status;
James Smart58da1ff2008-04-07 10:15:56 -04007269
7270out_not_finished:
7271 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04007272 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04007273 lpfc_mbox_cmpl_put(phba, pmbox);
7274 }
7275 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05007276}
7277
James Smarte59058c2008-08-24 21:49:00 -04007278/**
James Smartf1126682009-06-10 17:22:44 -04007279 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7280 * @phba: Pointer to HBA context object.
7281 *
7282 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7283 * the driver internal pending mailbox queue. It will then try to wait out the
7284 * possible outstanding mailbox command before return.
7285 *
7286 * Returns:
7287 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7288 * the outstanding mailbox command timed out.
7289 **/
7290static int
7291lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
7292{
7293 struct lpfc_sli *psli = &phba->sli;
James Smartf1126682009-06-10 17:22:44 -04007294 int rc = 0;
James Smarta183a152011-10-10 21:32:43 -04007295 unsigned long timeout = 0;
James Smartf1126682009-06-10 17:22:44 -04007296
7297 /* Mark the asynchronous mailbox command posting as blocked */
7298 spin_lock_irq(&phba->hbalock);
7299 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smartf1126682009-06-10 17:22:44 -04007300 /* Determine how long we might wait for the active mailbox
7301 * command to be gracefully completed by firmware.
7302 */
James Smarta183a152011-10-10 21:32:43 -04007303 if (phba->sli.mbox_active)
7304 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
7305 phba->sli.mbox_active) *
7306 1000) + jiffies;
7307 spin_unlock_irq(&phba->hbalock);
7308
James Smarte8d3c3b2013-10-10 12:21:30 -04007309 /* Make sure the mailbox is really active */
7310 if (timeout)
7311 lpfc_sli4_process_missed_mbox_completions(phba);
7312
James Smartf1126682009-06-10 17:22:44 -04007313 /* Wait for the outstnading mailbox command to complete */
7314 while (phba->sli.mbox_active) {
7315 /* Check active mailbox complete status every 2ms */
7316 msleep(2);
7317 if (time_after(jiffies, timeout)) {
7318 /* Timeout, marked the outstanding cmd not complete */
7319 rc = 1;
7320 break;
7321 }
7322 }
7323
7324 /* Can not cleanly block async mailbox command, fails it */
7325 if (rc) {
7326 spin_lock_irq(&phba->hbalock);
7327 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7328 spin_unlock_irq(&phba->hbalock);
7329 }
7330 return rc;
7331}
7332
7333/**
7334 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7335 * @phba: Pointer to HBA context object.
7336 *
7337 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7338 * commands from the driver internal pending mailbox queue. It makes sure
7339 * that there is no outstanding mailbox command before resuming posting
7340 * asynchronous mailbox commands. If, for any reason, there is outstanding
7341 * mailbox command, it will try to wait it out before resuming asynchronous
7342 * mailbox command posting.
7343 **/
7344static void
7345lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
7346{
7347 struct lpfc_sli *psli = &phba->sli;
7348
7349 spin_lock_irq(&phba->hbalock);
7350 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7351 /* Asynchronous mailbox posting is not blocked, do nothing */
7352 spin_unlock_irq(&phba->hbalock);
7353 return;
7354 }
7355
7356 /* Outstanding synchronous mailbox command is guaranteed to be done,
7357 * successful or timeout, after timing-out the outstanding mailbox
7358 * command shall always be removed, so just unblock posting async
7359 * mailbox command and resume
7360 */
7361 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
7362 spin_unlock_irq(&phba->hbalock);
7363
7364 /* wake up worker thread to post asynchronlous mailbox command */
7365 lpfc_worker_wake_up(phba);
7366}
7367
7368/**
James Smart2d843ed2012-09-29 11:29:06 -04007369 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7370 * @phba: Pointer to HBA context object.
7371 * @mboxq: Pointer to mailbox object.
7372 *
7373 * The function waits for the bootstrap mailbox register ready bit from
7374 * port for twice the regular mailbox command timeout value.
7375 *
7376 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7377 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7378 **/
7379static int
7380lpfc_sli4_wait_bmbx_ready(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7381{
7382 uint32_t db_ready;
7383 unsigned long timeout;
7384 struct lpfc_register bmbx_reg;
7385
7386 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
7387 * 1000) + jiffies;
7388
7389 do {
7390 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
7391 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
7392 if (!db_ready)
7393 msleep(2);
7394
7395 if (time_after(jiffies, timeout))
7396 return MBXERR_ERROR;
7397 } while (!db_ready);
7398
7399 return 0;
7400}
7401
7402/**
James Smartda0436e2009-05-22 14:51:39 -04007403 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7404 * @phba: Pointer to HBA context object.
7405 * @mboxq: Pointer to mailbox object.
7406 *
7407 * The function posts a mailbox to the port. The mailbox is expected
7408 * to be comletely filled in and ready for the port to operate on it.
7409 * This routine executes a synchronous completion operation on the
7410 * mailbox by polling for its completion.
7411 *
7412 * The caller must not be holding any locks when calling this routine.
7413 *
7414 * Returns:
7415 * MBX_SUCCESS - mailbox posted successfully
7416 * Any of the MBX error values.
7417 **/
7418static int
7419lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
7420{
7421 int rc = MBX_SUCCESS;
7422 unsigned long iflag;
James Smartda0436e2009-05-22 14:51:39 -04007423 uint32_t mcqe_status;
7424 uint32_t mbx_cmnd;
James Smartda0436e2009-05-22 14:51:39 -04007425 struct lpfc_sli *psli = &phba->sli;
7426 struct lpfc_mqe *mb = &mboxq->u.mqe;
7427 struct lpfc_bmbx_create *mbox_rgn;
7428 struct dma_address *dma_address;
James Smartda0436e2009-05-22 14:51:39 -04007429
7430 /*
7431 * Only one mailbox can be active to the bootstrap mailbox region
7432 * at a time and there is no queueing provided.
7433 */
7434 spin_lock_irqsave(&phba->hbalock, iflag);
7435 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7436 spin_unlock_irqrestore(&phba->hbalock, iflag);
7437 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007438 "(%d):2532 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007439 "cannot issue Data: x%x x%x\n",
7440 mboxq->vport ? mboxq->vport->vpi : 0,
7441 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007442 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7443 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007444 psli->sli_flag, MBX_POLL);
7445 return MBXERR_ERROR;
7446 }
7447 /* The server grabs the token and owns it until release */
7448 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7449 phba->sli.mbox_active = mboxq;
7450 spin_unlock_irqrestore(&phba->hbalock, iflag);
7451
James Smart2d843ed2012-09-29 11:29:06 -04007452 /* wait for bootstrap mbox register for readyness */
7453 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7454 if (rc)
7455 goto exit;
7456
James Smartda0436e2009-05-22 14:51:39 -04007457 /*
7458 * Initialize the bootstrap memory region to avoid stale data areas
7459 * in the mailbox post. Then copy the caller's mailbox contents to
7460 * the bmbx mailbox region.
7461 */
7462 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
7463 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
7464 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
7465 sizeof(struct lpfc_mqe));
7466
7467 /* Post the high mailbox dma address to the port and wait for ready. */
7468 dma_address = &phba->sli4_hba.bmbx.dma_address;
7469 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
7470
James Smart2d843ed2012-09-29 11:29:06 -04007471 /* wait for bootstrap mbox register for hi-address write done */
7472 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7473 if (rc)
7474 goto exit;
James Smartda0436e2009-05-22 14:51:39 -04007475
7476 /* Post the low mailbox dma address to the port. */
7477 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
James Smartda0436e2009-05-22 14:51:39 -04007478
James Smart2d843ed2012-09-29 11:29:06 -04007479 /* wait for bootstrap mbox register for low address write done */
7480 rc = lpfc_sli4_wait_bmbx_ready(phba, mboxq);
7481 if (rc)
7482 goto exit;
James Smartda0436e2009-05-22 14:51:39 -04007483
7484 /*
7485 * Read the CQ to ensure the mailbox has completed.
7486 * If so, update the mailbox status so that the upper layers
7487 * can complete the request normally.
7488 */
7489 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
7490 sizeof(struct lpfc_mqe));
7491 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
7492 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
7493 sizeof(struct lpfc_mcqe));
7494 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
James Smart05580562011-05-24 11:40:48 -04007495 /*
7496 * When the CQE status indicates a failure and the mailbox status
7497 * indicates success then copy the CQE status into the mailbox status
7498 * (and prefix it with x4000).
7499 */
James Smartda0436e2009-05-22 14:51:39 -04007500 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
James Smart05580562011-05-24 11:40:48 -04007501 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
7502 bf_set(lpfc_mqe_status, mb,
7503 (LPFC_MBX_ERROR_RANGE | mcqe_status));
James Smartda0436e2009-05-22 14:51:39 -04007504 rc = MBXERR_ERROR;
James Smartd7c47992010-06-08 18:31:54 -04007505 } else
7506 lpfc_sli4_swap_str(phba, mboxq);
James Smartda0436e2009-05-22 14:51:39 -04007507
7508 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007509 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
James Smartda0436e2009-05-22 14:51:39 -04007510 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7511 " x%x x%x CQ: x%x x%x x%x x%x\n",
James Smarta183a152011-10-10 21:32:43 -04007512 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
7513 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7514 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007515 bf_get(lpfc_mqe_status, mb),
7516 mb->un.mb_words[0], mb->un.mb_words[1],
7517 mb->un.mb_words[2], mb->un.mb_words[3],
7518 mb->un.mb_words[4], mb->un.mb_words[5],
7519 mb->un.mb_words[6], mb->un.mb_words[7],
7520 mb->un.mb_words[8], mb->un.mb_words[9],
7521 mb->un.mb_words[10], mb->un.mb_words[11],
7522 mb->un.mb_words[12], mboxq->mcqe.word0,
7523 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7524 mboxq->mcqe.trailer);
7525exit:
7526 /* We are holding the token, no needed for lock when release */
7527 spin_lock_irqsave(&phba->hbalock, iflag);
7528 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7529 phba->sli.mbox_active = NULL;
7530 spin_unlock_irqrestore(&phba->hbalock, iflag);
7531 return rc;
7532}
7533
7534/**
7535 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7536 * @phba: Pointer to HBA context object.
7537 * @pmbox: Pointer to mailbox object.
7538 * @flag: Flag indicating how the mailbox need to be processed.
7539 *
7540 * This function is called by discovery code and HBA management code to submit
7541 * a mailbox command to firmware with SLI-4 interface spec.
7542 *
7543 * Return codes the caller owns the mailbox command after the return of the
7544 * function.
7545 **/
7546static int
7547lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7548 uint32_t flag)
7549{
7550 struct lpfc_sli *psli = &phba->sli;
7551 unsigned long iflags;
7552 int rc;
7553
James Smartb76f2dc2011-07-22 18:37:42 -04007554 /* dump from issue mailbox command if setup */
7555 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7556
James Smart8fa38512009-07-19 10:01:03 -04007557 rc = lpfc_mbox_dev_check(phba);
7558 if (unlikely(rc)) {
7559 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007560 "(%d):2544 Mailbox command x%x (x%x/x%x) "
James Smart8fa38512009-07-19 10:01:03 -04007561 "cannot issue Data: x%x x%x\n",
7562 mboxq->vport ? mboxq->vport->vpi : 0,
7563 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007564 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7565 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smart8fa38512009-07-19 10:01:03 -04007566 psli->sli_flag, flag);
7567 goto out_not_finished;
7568 }
7569
James Smartda0436e2009-05-22 14:51:39 -04007570 /* Detect polling mode and jump to a handler */
7571 if (!phba->sli4_hba.intr_enable) {
7572 if (flag == MBX_POLL)
7573 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7574 else
7575 rc = -EIO;
7576 if (rc != MBX_SUCCESS)
James Smart05580562011-05-24 11:40:48 -04007577 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smartda0436e2009-05-22 14:51:39 -04007578 "(%d):2541 Mailbox command x%x "
James Smartcc459f12012-05-09 21:18:30 -04007579 "(x%x/x%x) failure: "
7580 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7581 "Data: x%x x%x\n,",
James Smartda0436e2009-05-22 14:51:39 -04007582 mboxq->vport ? mboxq->vport->vpi : 0,
7583 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007584 lpfc_sli_config_mbox_subsys_get(phba,
7585 mboxq),
7586 lpfc_sli_config_mbox_opcode_get(phba,
7587 mboxq),
James Smartcc459f12012-05-09 21:18:30 -04007588 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7589 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7590 bf_get(lpfc_mcqe_ext_status,
7591 &mboxq->mcqe),
James Smartda0436e2009-05-22 14:51:39 -04007592 psli->sli_flag, flag);
7593 return rc;
7594 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04007595 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7596 "(%d):2542 Try to issue mailbox command "
James Smarta183a152011-10-10 21:32:43 -04007597 "x%x (x%x/x%x) synchronously ahead of async"
James Smartf1126682009-06-10 17:22:44 -04007598 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04007599 mboxq->vport ? mboxq->vport->vpi : 0,
7600 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007601 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7602 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007603 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04007604 /* Try to block the asynchronous mailbox posting */
7605 rc = lpfc_sli4_async_mbox_block(phba);
7606 if (!rc) {
7607 /* Successfully blocked, now issue sync mbox cmd */
7608 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7609 if (rc != MBX_SUCCESS)
James Smartcc459f12012-05-09 21:18:30 -04007610 lpfc_printf_log(phba, KERN_WARNING,
James Smarta183a152011-10-10 21:32:43 -04007611 LOG_MBOX | LOG_SLI,
James Smartcc459f12012-05-09 21:18:30 -04007612 "(%d):2597 Sync Mailbox command "
7613 "x%x (x%x/x%x) failure: "
7614 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7615 "Data: x%x x%x\n,",
7616 mboxq->vport ? mboxq->vport->vpi : 0,
James Smarta183a152011-10-10 21:32:43 -04007617 mboxq->u.mb.mbxCommand,
7618 lpfc_sli_config_mbox_subsys_get(phba,
7619 mboxq),
7620 lpfc_sli_config_mbox_opcode_get(phba,
7621 mboxq),
James Smartcc459f12012-05-09 21:18:30 -04007622 bf_get(lpfc_mqe_status, &mboxq->u.mqe),
7623 bf_get(lpfc_mcqe_status, &mboxq->mcqe),
7624 bf_get(lpfc_mcqe_ext_status,
7625 &mboxq->mcqe),
James Smarta183a152011-10-10 21:32:43 -04007626 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04007627 /* Unblock the async mailbox posting afterward */
7628 lpfc_sli4_async_mbox_unblock(phba);
7629 }
7630 return rc;
James Smartda0436e2009-05-22 14:51:39 -04007631 }
7632
7633 /* Now, interrupt mode asynchrous mailbox command */
7634 rc = lpfc_mbox_cmd_check(phba, mboxq);
7635 if (rc) {
7636 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007637 "(%d):2543 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007638 "cannot issue Data: x%x x%x\n",
7639 mboxq->vport ? mboxq->vport->vpi : 0,
7640 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007641 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7642 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007643 psli->sli_flag, flag);
7644 goto out_not_finished;
7645 }
James Smartda0436e2009-05-22 14:51:39 -04007646
7647 /* Put the mailbox command to the driver internal FIFO */
7648 psli->slistat.mbox_busy++;
7649 spin_lock_irqsave(&phba->hbalock, iflags);
7650 lpfc_mbox_put(phba, mboxq);
7651 spin_unlock_irqrestore(&phba->hbalock, iflags);
7652 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7653 "(%d):0354 Mbox cmd issue - Enqueue Data: "
James Smarta183a152011-10-10 21:32:43 -04007654 "x%x (x%x/x%x) x%x x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04007655 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7656 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
James Smarta183a152011-10-10 21:32:43 -04007657 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7658 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007659 phba->pport->port_state,
7660 psli->sli_flag, MBX_NOWAIT);
7661 /* Wake up worker thread to transport mailbox command from head */
7662 lpfc_worker_wake_up(phba);
7663
7664 return MBX_BUSY;
7665
7666out_not_finished:
7667 return MBX_NOT_FINISHED;
7668}
7669
7670/**
7671 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7672 * @phba: Pointer to HBA context object.
7673 *
7674 * This function is called by worker thread to send a mailbox command to
7675 * SLI4 HBA firmware.
7676 *
7677 **/
7678int
7679lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7680{
7681 struct lpfc_sli *psli = &phba->sli;
7682 LPFC_MBOXQ_t *mboxq;
7683 int rc = MBX_SUCCESS;
7684 unsigned long iflags;
7685 struct lpfc_mqe *mqe;
7686 uint32_t mbx_cmnd;
7687
7688 /* Check interrupt mode before post async mailbox command */
7689 if (unlikely(!phba->sli4_hba.intr_enable))
7690 return MBX_NOT_FINISHED;
7691
7692 /* Check for mailbox command service token */
7693 spin_lock_irqsave(&phba->hbalock, iflags);
7694 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7695 spin_unlock_irqrestore(&phba->hbalock, iflags);
7696 return MBX_NOT_FINISHED;
7697 }
7698 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7699 spin_unlock_irqrestore(&phba->hbalock, iflags);
7700 return MBX_NOT_FINISHED;
7701 }
7702 if (unlikely(phba->sli.mbox_active)) {
7703 spin_unlock_irqrestore(&phba->hbalock, iflags);
7704 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7705 "0384 There is pending active mailbox cmd\n");
7706 return MBX_NOT_FINISHED;
7707 }
7708 /* Take the mailbox command service token */
7709 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7710
7711 /* Get the next mailbox command from head of queue */
7712 mboxq = lpfc_mbox_get(phba);
7713
7714 /* If no more mailbox command waiting for post, we're done */
7715 if (!mboxq) {
7716 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7717 spin_unlock_irqrestore(&phba->hbalock, iflags);
7718 return MBX_SUCCESS;
7719 }
7720 phba->sli.mbox_active = mboxq;
7721 spin_unlock_irqrestore(&phba->hbalock, iflags);
7722
7723 /* Check device readiness for posting mailbox command */
7724 rc = lpfc_mbox_dev_check(phba);
7725 if (unlikely(rc))
7726 /* Driver clean routine will clean up pending mailbox */
7727 goto out_not_finished;
7728
7729 /* Prepare the mbox command to be posted */
7730 mqe = &mboxq->u.mqe;
7731 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7732
7733 /* Start timer for the mbox_tmo and log some mailbox post messages */
7734 mod_timer(&psli->mbox_tmo, (jiffies +
James Smart256ec0d2013-04-17 20:14:58 -04007735 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba, mboxq))));
James Smartda0436e2009-05-22 14:51:39 -04007736
7737 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007738 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
James Smartda0436e2009-05-22 14:51:39 -04007739 "x%x x%x\n",
7740 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
James Smarta183a152011-10-10 21:32:43 -04007741 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7742 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007743 phba->pport->port_state, psli->sli_flag);
7744
7745 if (mbx_cmnd != MBX_HEARTBEAT) {
7746 if (mboxq->vport) {
7747 lpfc_debugfs_disc_trc(mboxq->vport,
7748 LPFC_DISC_TRC_MBOX_VPORT,
7749 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7750 mbx_cmnd, mqe->un.mb_words[0],
7751 mqe->un.mb_words[1]);
7752 } else {
7753 lpfc_debugfs_disc_trc(phba->pport,
7754 LPFC_DISC_TRC_MBOX,
7755 "MBOX Send: cmd:x%x mb:x%x x%x",
7756 mbx_cmnd, mqe->un.mb_words[0],
7757 mqe->un.mb_words[1]);
7758 }
7759 }
7760 psli->slistat.mbox_cmd++;
7761
7762 /* Post the mailbox command to the port */
7763 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7764 if (rc != MBX_SUCCESS) {
7765 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007766 "(%d):2533 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007767 "cannot issue Data: x%x x%x\n",
7768 mboxq->vport ? mboxq->vport->vpi : 0,
7769 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007770 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7771 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007772 psli->sli_flag, MBX_NOWAIT);
7773 goto out_not_finished;
7774 }
7775
7776 return rc;
7777
7778out_not_finished:
7779 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartd7069f02012-03-01 22:36:29 -05007780 if (phba->sli.mbox_active) {
7781 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7782 __lpfc_mbox_cmpl_put(phba, mboxq);
7783 /* Release the token */
7784 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7785 phba->sli.mbox_active = NULL;
7786 }
James Smartda0436e2009-05-22 14:51:39 -04007787 spin_unlock_irqrestore(&phba->hbalock, iflags);
7788
7789 return MBX_NOT_FINISHED;
7790}
7791
7792/**
7793 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7794 * @phba: Pointer to HBA context object.
7795 * @pmbox: Pointer to mailbox object.
7796 * @flag: Flag indicating how the mailbox need to be processed.
7797 *
7798 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7799 * the API jump table function pointer from the lpfc_hba struct.
7800 *
7801 * Return codes the caller owns the mailbox command after the return of the
7802 * function.
7803 **/
7804int
7805lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7806{
7807 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7808}
7809
7810/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03007811 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
James Smartda0436e2009-05-22 14:51:39 -04007812 * @phba: The hba struct for which this call is being executed.
7813 * @dev_grp: The HBA PCI-Device group number.
7814 *
7815 * This routine sets up the mbox interface API function jump table in @phba
7816 * struct.
7817 * Returns: 0 - success, -ENODEV - failure.
7818 **/
7819int
7820lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7821{
7822
7823 switch (dev_grp) {
7824 case LPFC_PCI_DEV_LP:
7825 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7826 phba->lpfc_sli_handle_slow_ring_event =
7827 lpfc_sli_handle_slow_ring_event_s3;
7828 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7829 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7830 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7831 break;
7832 case LPFC_PCI_DEV_OC:
7833 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7834 phba->lpfc_sli_handle_slow_ring_event =
7835 lpfc_sli_handle_slow_ring_event_s4;
7836 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7837 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7838 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7839 break;
7840 default:
7841 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7842 "1420 Invalid HBA PCI-device group: 0x%x\n",
7843 dev_grp);
7844 return -ENODEV;
7845 break;
7846 }
7847 return 0;
7848}
7849
7850/**
James Smart3621a712009-04-06 18:47:14 -04007851 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04007852 * @phba: Pointer to HBA context object.
7853 * @pring: Pointer to driver SLI ring object.
7854 * @piocb: Pointer to address of newly added command iocb.
7855 *
7856 * This function is called with hbalock held to add a command
7857 * iocb to the txq when SLI layer cannot submit the command iocb
7858 * to the ring.
7859 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04007860void
James Smart92d7f7b2007-06-17 19:56:38 -05007861__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05007862 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05007863{
7864 /* Insert the caller's iocb in the txq tail for later processing. */
7865 list_add_tail(&piocb->list, &pring->txq);
dea31012005-04-17 16:05:31 -05007866}
7867
James Smarte59058c2008-08-24 21:49:00 -04007868/**
James Smart3621a712009-04-06 18:47:14 -04007869 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04007870 * @phba: Pointer to HBA context object.
7871 * @pring: Pointer to driver SLI ring object.
7872 * @piocb: Pointer to address of newly added command iocb.
7873 *
7874 * This function is called with hbalock held before a new
7875 * iocb is submitted to the firmware. This function checks
7876 * txq to flush the iocbs in txq to Firmware before
7877 * submitting new iocbs to the Firmware.
7878 * If there are iocbs in the txq which need to be submitted
7879 * to firmware, lpfc_sli_next_iocb returns the first element
7880 * of the txq after dequeuing it from txq.
7881 * If there is no iocb in the txq then the function will return
7882 * *piocb and *piocb is set to NULL. Caller needs to check
7883 * *piocb to find if there are more commands in the txq.
7884 **/
dea31012005-04-17 16:05:31 -05007885static struct lpfc_iocbq *
7886lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05007887 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05007888{
7889 struct lpfc_iocbq * nextiocb;
7890
7891 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7892 if (!nextiocb) {
7893 nextiocb = *piocb;
7894 *piocb = NULL;
7895 }
7896
7897 return nextiocb;
7898}
7899
James Smarte59058c2008-08-24 21:49:00 -04007900/**
James Smart3772a992009-05-22 14:50:54 -04007901 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04007902 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04007903 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04007904 * @piocb: Pointer to command iocb.
7905 * @flag: Flag indicating if this command can be put into txq.
7906 *
James Smart3772a992009-05-22 14:50:54 -04007907 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7908 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7909 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7910 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7911 * this function allows only iocbs for posting buffers. This function finds
7912 * next available slot in the command ring and posts the command to the
7913 * available slot and writes the port attention register to request HBA start
7914 * processing new iocb. If there is no slot available in the ring and
7915 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7916 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04007917 *
James Smart3772a992009-05-22 14:50:54 -04007918 * This function is called with hbalock held. The function will return success
7919 * after it successfully submit the iocb to firmware or after adding to the
7920 * txq.
James Smarte59058c2008-08-24 21:49:00 -04007921 **/
James Smart98c9ea52007-10-27 13:37:33 -04007922static int
James Smart3772a992009-05-22 14:50:54 -04007923__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05007924 struct lpfc_iocbq *piocb, uint32_t flag)
7925{
7926 struct lpfc_iocbq *nextiocb;
7927 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04007928 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05007929
James Smart92d7f7b2007-06-17 19:56:38 -05007930 if (piocb->iocb_cmpl && (!piocb->vport) &&
7931 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7932 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7933 lpfc_printf_log(phba, KERN_ERR,
7934 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04007935 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05007936 piocb->iocb.ulpCommand);
7937 dump_stack();
7938 return IOCB_ERROR;
7939 }
7940
7941
Linas Vepstas8d63f372007-02-14 14:28:36 -06007942 /* If the PCI channel is in offline state, do not post iocbs. */
7943 if (unlikely(pci_channel_offline(phba->pcidev)))
7944 return IOCB_ERROR;
7945
James Smarta257bf92009-04-06 18:48:10 -04007946 /* If HBA has a deferred error attention, fail the iocb. */
7947 if (unlikely(phba->hba_flag & DEFER_ERATT))
7948 return IOCB_ERROR;
7949
dea31012005-04-17 16:05:31 -05007950 /*
7951 * We should never get an IOCB if we are in a < LINK_DOWN state
7952 */
James Smart2e0fef82007-06-17 19:56:36 -05007953 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05007954 return IOCB_ERROR;
7955
7956 /*
7957 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04007958 * outstanding event.
dea31012005-04-17 16:05:31 -05007959 */
James Smart0b727fe2007-10-27 13:37:25 -04007960 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05007961 goto iocb_busy;
7962
James Smart2e0fef82007-06-17 19:56:36 -05007963 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05007964 /*
James Smart2680eea2007-04-25 09:52:55 -04007965 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05007966 * can be issued if the link is not up.
7967 */
7968 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04007969 case CMD_GEN_REQUEST64_CR:
7970 case CMD_GEN_REQUEST64_CX:
7971 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7972 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04007973 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04007974 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7975 MENLO_TRANSPORT_TYPE))
7976
7977 goto iocb_busy;
7978 break;
dea31012005-04-17 16:05:31 -05007979 case CMD_QUE_RING_BUF_CN:
7980 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05007981 /*
7982 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7983 * completion, iocb_cmpl MUST be 0.
7984 */
7985 if (piocb->iocb_cmpl)
7986 piocb->iocb_cmpl = NULL;
7987 /*FALLTHROUGH*/
7988 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04007989 case CMD_CLOSE_XRI_CN:
7990 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05007991 break;
7992 default:
7993 goto iocb_busy;
7994 }
7995
7996 /*
7997 * For FCP commands, we must be in a state where we can process link
7998 * attention events.
7999 */
8000 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05008001 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05008002 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05008003 }
dea31012005-04-17 16:05:31 -05008004
dea31012005-04-17 16:05:31 -05008005 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
8006 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
8007 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
8008
8009 if (iocb)
8010 lpfc_sli_update_ring(phba, pring);
8011 else
8012 lpfc_sli_update_full_ring(phba, pring);
8013
8014 if (!piocb)
8015 return IOCB_SUCCESS;
8016
8017 goto out_busy;
8018
8019 iocb_busy:
8020 pring->stats.iocb_cmd_delay++;
8021
8022 out_busy:
8023
8024 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05008025 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05008026 return IOCB_SUCCESS;
8027 }
8028
8029 return IOCB_BUSY;
8030}
8031
James Smart3772a992009-05-22 14:50:54 -04008032/**
James Smart4f774512009-05-22 14:52:35 -04008033 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8034 * @phba: Pointer to HBA context object.
8035 * @piocb: Pointer to command iocb.
8036 * @sglq: Pointer to the scatter gather queue object.
8037 *
8038 * This routine converts the bpl or bde that is in the IOCB
8039 * to a sgl list for the sli4 hardware. The physical address
8040 * of the bpl/bde is converted back to a virtual address.
8041 * If the IOCB contains a BPL then the list of BDE's is
8042 * converted to sli4_sge's. If the IOCB contains a single
8043 * BDE then it is converted to a single sli_sge.
8044 * The IOCB is still in cpu endianess so the contents of
8045 * the bpl can be used without byte swapping.
8046 *
8047 * Returns valid XRI = Success, NO_XRI = Failure.
8048**/
8049static uint16_t
8050lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
8051 struct lpfc_sglq *sglq)
8052{
8053 uint16_t xritag = NO_XRI;
8054 struct ulp_bde64 *bpl = NULL;
8055 struct ulp_bde64 bde;
8056 struct sli4_sge *sgl = NULL;
James Smart1b511972011-12-13 13:23:09 -05008057 struct lpfc_dmabuf *dmabuf;
James Smart4f774512009-05-22 14:52:35 -04008058 IOCB_t *icmd;
8059 int numBdes = 0;
8060 int i = 0;
James Smart63e801c2010-11-20 23:14:19 -05008061 uint32_t offset = 0; /* accumulated offset in the sg request list */
8062 int inbound = 0; /* number of sg reply entries inbound from firmware */
James Smart4f774512009-05-22 14:52:35 -04008063
8064 if (!piocbq || !sglq)
8065 return xritag;
8066
8067 sgl = (struct sli4_sge *)sglq->sgl;
8068 icmd = &piocbq->iocb;
James Smart6b5151f2012-01-18 16:24:06 -05008069 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
8070 return sglq->sli4_xritag;
James Smart4f774512009-05-22 14:52:35 -04008071 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
8072 numBdes = icmd->un.genreq64.bdl.bdeSize /
8073 sizeof(struct ulp_bde64);
8074 /* The addrHigh and addrLow fields within the IOCB
8075 * have not been byteswapped yet so there is no
8076 * need to swap them back.
8077 */
James Smart1b511972011-12-13 13:23:09 -05008078 if (piocbq->context3)
8079 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
8080 else
8081 return xritag;
James Smart4f774512009-05-22 14:52:35 -04008082
James Smart1b511972011-12-13 13:23:09 -05008083 bpl = (struct ulp_bde64 *)dmabuf->virt;
James Smart4f774512009-05-22 14:52:35 -04008084 if (!bpl)
8085 return xritag;
8086
8087 for (i = 0; i < numBdes; i++) {
8088 /* Should already be byte swapped. */
James Smart28baac72010-02-12 14:42:03 -05008089 sgl->addr_hi = bpl->addrHigh;
8090 sgl->addr_lo = bpl->addrLow;
8091
James Smart05580562011-05-24 11:40:48 -04008092 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008093 if ((i+1) == numBdes)
8094 bf_set(lpfc_sli4_sge_last, sgl, 1);
8095 else
8096 bf_set(lpfc_sli4_sge_last, sgl, 0);
James Smart28baac72010-02-12 14:42:03 -05008097 /* swap the size field back to the cpu so we
8098 * can assign it to the sgl.
8099 */
8100 bde.tus.w = le32_to_cpu(bpl->tus.w);
8101 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
James Smart63e801c2010-11-20 23:14:19 -05008102 /* The offsets in the sgl need to be accumulated
8103 * separately for the request and reply lists.
8104 * The request is always first, the reply follows.
8105 */
8106 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
8107 /* add up the reply sg entries */
8108 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
8109 inbound++;
8110 /* first inbound? reset the offset */
8111 if (inbound == 1)
8112 offset = 0;
8113 bf_set(lpfc_sli4_sge_offset, sgl, offset);
James Smartf9bb2da2011-10-10 21:34:11 -04008114 bf_set(lpfc_sli4_sge_type, sgl,
8115 LPFC_SGE_TYPE_DATA);
James Smart63e801c2010-11-20 23:14:19 -05008116 offset += bde.tus.f.bdeSize;
8117 }
James Smart546fc852011-03-11 16:06:29 -05008118 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008119 bpl++;
8120 sgl++;
8121 }
8122 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
8123 /* The addrHigh and addrLow fields of the BDE have not
8124 * been byteswapped yet so they need to be swapped
8125 * before putting them in the sgl.
8126 */
8127 sgl->addr_hi =
8128 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
8129 sgl->addr_lo =
8130 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
James Smart05580562011-05-24 11:40:48 -04008131 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04008132 bf_set(lpfc_sli4_sge_last, sgl, 1);
8133 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05008134 sgl->sge_len =
8135 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04008136 }
8137 return sglq->sli4_xritag;
8138}
8139
8140/**
James Smart4f774512009-05-22 14:52:35 -04008141 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8142 * @phba: Pointer to HBA context object.
8143 * @piocb: Pointer to command iocb.
8144 * @wqe: Pointer to the work queue entry.
8145 *
8146 * This routine converts the iocb command to its Work Queue Entry
8147 * equivalent. The wqe pointer should not have any fields set when
8148 * this routine is called because it will memcpy over them.
8149 * This routine does not set the CQ_ID or the WQEC bits in the
8150 * wqe.
8151 *
8152 * Returns: 0 = Success, IOCB_ERROR = Failure.
8153 **/
8154static int
8155lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
8156 union lpfc_wqe *wqe)
8157{
James Smart5ffc2662009-11-18 15:39:44 -05008158 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04008159 uint8_t ct = 0;
8160 uint32_t fip;
8161 uint32_t abort_tag;
8162 uint8_t command_type = ELS_COMMAND_NON_FIP;
8163 uint8_t cmnd;
8164 uint16_t xritag;
James Smartdcf2a4e2010-09-29 11:18:53 -04008165 uint16_t abrt_iotag;
8166 struct lpfc_iocbq *abrtiocbq;
James Smart4f774512009-05-22 14:52:35 -04008167 struct ulp_bde64 *bpl = NULL;
James Smartf0d9bcc2010-10-22 11:07:09 -04008168 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05008169 int numBdes, i;
8170 struct ulp_bde64 bde;
James Smartc31098c2011-04-16 11:03:33 -04008171 struct lpfc_nodelist *ndlp;
James Smartff78d8f2011-12-13 13:21:35 -05008172 uint32_t *pcmd;
James Smart1b511972011-12-13 13:23:09 -05008173 uint32_t if_type;
James Smart4f774512009-05-22 14:52:35 -04008174
James Smart45ed1192009-10-02 15:17:02 -04008175 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04008176 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04008177 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04008178 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05008179 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04008180 command_type = ELS_COMMAND_FIP;
8181 else
8182 command_type = ELS_COMMAND_NON_FIP;
8183
James Smart4f774512009-05-22 14:52:35 -04008184 /* Some of the fields are in the right position already */
8185 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
8186 abort_tag = (uint32_t) iocbq->iotag;
8187 xritag = iocbq->sli4_xritag;
James Smartf0d9bcc2010-10-22 11:07:09 -04008188 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
James Smart28d7f3d2014-05-21 08:05:28 -04008189 wqe->generic.wqe_com.word10 = 0;
James Smart4f774512009-05-22 14:52:35 -04008190 /* words0-2 bpl convert bde */
8191 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05008192 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8193 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04008194 bpl = (struct ulp_bde64 *)
8195 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
8196 if (!bpl)
8197 return IOCB_ERROR;
8198
8199 /* Should already be byte swapped. */
8200 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
8201 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
8202 /* swap the size field back to the cpu so we
8203 * can assign it to the sgl.
8204 */
8205 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05008206 xmit_len = wqe->generic.bde.tus.f.bdeSize;
8207 total_len = 0;
8208 for (i = 0; i < numBdes; i++) {
8209 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
8210 total_len += bde.tus.f.bdeSize;
8211 }
James Smart4f774512009-05-22 14:52:35 -04008212 } else
James Smart5ffc2662009-11-18 15:39:44 -05008213 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04008214
8215 iocbq->iocb.ulpIoTag = iocbq->iotag;
8216 cmnd = iocbq->iocb.ulpCommand;
8217
8218 switch (iocbq->iocb.ulpCommand) {
8219 case CMD_ELS_REQUEST64_CR:
James Smart93d1379e2012-05-09 21:19:34 -04008220 if (iocbq->iocb_flag & LPFC_IO_LIBDFC)
8221 ndlp = iocbq->context_un.ndlp;
8222 else
8223 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04008224 if (!iocbq->iocb.ulpLe) {
8225 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8226 "2007 Only Limited Edition cmd Format"
8227 " supported 0x%x\n",
8228 iocbq->iocb.ulpCommand);
8229 return IOCB_ERROR;
8230 }
James Smartff78d8f2011-12-13 13:21:35 -05008231
James Smart5ffc2662009-11-18 15:39:44 -05008232 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04008233 /* Els_reguest64 has a TMO */
8234 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
8235 iocbq->iocb.ulpTimeout);
8236 /* Need a VF for word 4 set the vf bit*/
8237 bf_set(els_req64_vf, &wqe->els_req, 0);
8238 /* And a VFID for word 12 */
8239 bf_set(els_req64_vfid, &wqe->els_req, 0);
James Smart4f774512009-05-22 14:52:35 -04008240 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
James Smartf0d9bcc2010-10-22 11:07:09 -04008241 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8242 iocbq->iocb.ulpContext);
8243 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
8244 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04008245 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartff78d8f2011-12-13 13:21:35 -05008246 if (command_type == ELS_COMMAND_FIP)
James Smartc8685952009-11-18 15:39:16 -05008247 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
8248 >> LPFC_FIP_ELS_ID_SHIFT);
James Smartff78d8f2011-12-13 13:21:35 -05008249 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8250 iocbq->context2)->virt);
James Smart1b511972011-12-13 13:23:09 -05008251 if_type = bf_get(lpfc_sli_intf_if_type,
8252 &phba->sli4_hba.sli_intf);
8253 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
James Smartff78d8f2011-12-13 13:21:35 -05008254 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
James Smartcb69f7d2011-12-13 13:21:57 -05008255 *pcmd == ELS_CMD_SCR ||
James Smart6b5151f2012-01-18 16:24:06 -05008256 *pcmd == ELS_CMD_FDISC ||
James Smartbdcd2b92012-03-01 22:33:52 -05008257 *pcmd == ELS_CMD_LOGO ||
James Smartff78d8f2011-12-13 13:21:35 -05008258 *pcmd == ELS_CMD_PLOGI)) {
8259 bf_set(els_req64_sp, &wqe->els_req, 1);
8260 bf_set(els_req64_sid, &wqe->els_req,
8261 iocbq->vport->fc_myDID);
James Smart939723a2012-05-09 21:19:03 -04008262 if ((*pcmd == ELS_CMD_FLOGI) &&
8263 !(phba->fc_topology ==
8264 LPFC_TOPOLOGY_LOOP))
8265 bf_set(els_req64_sid, &wqe->els_req, 0);
James Smartff78d8f2011-12-13 13:21:35 -05008266 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
8267 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
James Smarta7dd9c02012-05-09 21:16:50 -04008268 phba->vpi_ids[iocbq->vport->vpi]);
James Smart3ef6d242012-01-18 16:23:48 -05008269 } else if (pcmd && iocbq->context1) {
James Smartff78d8f2011-12-13 13:21:35 -05008270 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
8271 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
8272 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
8273 }
James Smartc8685952009-11-18 15:39:16 -05008274 }
James Smart6d368e52011-05-24 11:44:12 -04008275 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
8276 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04008277 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
8278 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
8279 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
8280 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
8281 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8282 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
James Smartaf227412013-10-10 12:23:10 -04008283 wqe->els_req.max_response_payload_len = total_len - xmit_len;
James Smart7851fe22011-07-22 18:36:52 -04008284 break;
James Smart5ffc2662009-11-18 15:39:44 -05008285 case CMD_XMIT_SEQUENCE64_CX:
James Smartf0d9bcc2010-10-22 11:07:09 -04008286 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
8287 iocbq->iocb.un.ulpWord[3]);
8288 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04008289 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart5ffc2662009-11-18 15:39:44 -05008290 /* The entire sequence is transmitted for this IOCB */
8291 xmit_len = total_len;
8292 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart1b511972011-12-13 13:23:09 -05008293 if (phba->link_flag & LS_LOOPBACK_MODE)
8294 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
James Smart4f774512009-05-22 14:52:35 -04008295 case CMD_XMIT_SEQUENCE64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04008296 /* word3 iocb=io_tag32 wqe=reserved */
8297 wqe->xmit_sequence.rsvd3 = 0;
James Smart4f774512009-05-22 14:52:35 -04008298 /* word4 relative_offset memcpy */
8299 /* word5 r_ctl/df_ctl memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04008300 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
8301 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
8302 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
8303 LPFC_WQE_IOD_WRITE);
8304 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
8305 LPFC_WQE_LENLOC_WORD12);
8306 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
James Smart5ffc2662009-11-18 15:39:44 -05008307 wqe->xmit_sequence.xmit_len = xmit_len;
8308 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04008309 break;
James Smart4f774512009-05-22 14:52:35 -04008310 case CMD_XMIT_BCAST64_CN:
James Smartf0d9bcc2010-10-22 11:07:09 -04008311 /* word3 iocb=iotag32 wqe=seq_payload_len */
8312 wqe->xmit_bcast64.seq_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04008313 /* word4 iocb=rsvd wqe=rsvd */
8314 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8315 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
James Smartf0d9bcc2010-10-22 11:07:09 -04008316 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04008317 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
James Smartf0d9bcc2010-10-22 11:07:09 -04008318 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
8319 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
8320 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
8321 LPFC_WQE_LENLOC_WORD3);
8322 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
James Smart7851fe22011-07-22 18:36:52 -04008323 break;
James Smart4f774512009-05-22 14:52:35 -04008324 case CMD_FCP_IWRITE64_CR:
8325 command_type = FCP_COMMAND_DATA_OUT;
James Smartf0d9bcc2010-10-22 11:07:09 -04008326 /* word3 iocb=iotag wqe=payload_offset_len */
8327 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
James Smart0ba4b212013-10-10 12:22:38 -04008328 bf_set(payload_offset_len, &wqe->fcp_iwrite,
8329 xmit_len + sizeof(struct fcp_rsp));
8330 bf_set(cmd_buff_len, &wqe->fcp_iwrite,
8331 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008332 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8333 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8334 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
8335 iocbq->iocb.ulpFCP2Rcvy);
8336 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
8337 /* Always open the exchange */
8338 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008339 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
8340 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
8341 LPFC_WQE_LENLOC_WORD4);
8342 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
8343 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05008344 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
James Smart1ba981f2014-02-20 09:56:45 -05008345 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8346 bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
8347 if (phba->cfg_XLanePriority) {
8348 bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
8349 bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
8350 (phba->cfg_XLanePriority << 1));
8351 }
8352 }
James Smart7851fe22011-07-22 18:36:52 -04008353 break;
James Smartf0d9bcc2010-10-22 11:07:09 -04008354 case CMD_FCP_IREAD64_CR:
8355 /* word3 iocb=iotag wqe=payload_offset_len */
8356 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
James Smart0ba4b212013-10-10 12:22:38 -04008357 bf_set(payload_offset_len, &wqe->fcp_iread,
8358 xmit_len + sizeof(struct fcp_rsp));
8359 bf_set(cmd_buff_len, &wqe->fcp_iread,
8360 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008361 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8362 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8363 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
8364 iocbq->iocb.ulpFCP2Rcvy);
8365 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
James Smart4f774512009-05-22 14:52:35 -04008366 /* Always open the exchange */
8367 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008368 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
8369 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
8370 LPFC_WQE_LENLOC_WORD4);
8371 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
8372 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05008373 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
James Smart1ba981f2014-02-20 09:56:45 -05008374 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8375 bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
8376 if (phba->cfg_XLanePriority) {
8377 bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
8378 bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
8379 (phba->cfg_XLanePriority << 1));
8380 }
8381 }
James Smart7851fe22011-07-22 18:36:52 -04008382 break;
James Smartf1126682009-06-10 17:22:44 -04008383 case CMD_FCP_ICMND64_CR:
James Smart0ba4b212013-10-10 12:22:38 -04008384 /* word3 iocb=iotag wqe=payload_offset_len */
8385 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8386 bf_set(payload_offset_len, &wqe->fcp_icmd,
8387 xmit_len + sizeof(struct fcp_rsp));
8388 bf_set(cmd_buff_len, &wqe->fcp_icmd,
8389 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04008390 /* word3 iocb=IO_TAG wqe=reserved */
James Smartf0d9bcc2010-10-22 11:07:09 -04008391 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
James Smartf1126682009-06-10 17:22:44 -04008392 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04008393 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
8394 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
8395 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
8396 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
8397 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
8398 LPFC_WQE_LENLOC_NONE);
8399 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
James Smart2a94aea2012-09-29 11:30:31 -04008400 bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
8401 iocbq->iocb.ulpFCP2Rcvy);
James Smart1ba981f2014-02-20 09:56:45 -05008402 if (iocbq->iocb_flag & LPFC_IO_OAS) {
8403 bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
8404 if (phba->cfg_XLanePriority) {
8405 bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
8406 bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
8407 (phba->cfg_XLanePriority << 1));
8408 }
8409 }
James Smart7851fe22011-07-22 18:36:52 -04008410 break;
James Smart4f774512009-05-22 14:52:35 -04008411 case CMD_GEN_REQUEST64_CR:
James Smart63e801c2010-11-20 23:14:19 -05008412 /* For this command calculate the xmit length of the
8413 * request bde.
8414 */
8415 xmit_len = 0;
8416 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
8417 sizeof(struct ulp_bde64);
8418 for (i = 0; i < numBdes; i++) {
James Smart63e801c2010-11-20 23:14:19 -05008419 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
James Smart546fc852011-03-11 16:06:29 -05008420 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
8421 break;
James Smart63e801c2010-11-20 23:14:19 -05008422 xmit_len += bde.tus.f.bdeSize;
8423 }
James Smartf0d9bcc2010-10-22 11:07:09 -04008424 /* word3 iocb=IO_TAG wqe=request_payload_len */
8425 wqe->gen_req.request_payload_len = xmit_len;
8426 /* word4 iocb=parameter wqe=relative_offset memcpy */
8427 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
James Smart4f774512009-05-22 14:52:35 -04008428 /* word6 context tag copied in memcpy */
8429 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
8430 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
8431 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8432 "2015 Invalid CT %x command 0x%x\n",
8433 ct, iocbq->iocb.ulpCommand);
8434 return IOCB_ERROR;
8435 }
James Smartf0d9bcc2010-10-22 11:07:09 -04008436 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
8437 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
8438 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
8439 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
8440 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
8441 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
8442 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
8443 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
James Smartaf227412013-10-10 12:23:10 -04008444 wqe->gen_req.max_response_payload_len = total_len - xmit_len;
James Smart4f774512009-05-22 14:52:35 -04008445 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04008446 break;
James Smart4f774512009-05-22 14:52:35 -04008447 case CMD_XMIT_ELS_RSP64_CX:
James Smartc31098c2011-04-16 11:03:33 -04008448 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04008449 /* words0-2 BDE memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04008450 /* word3 iocb=iotag32 wqe=response_payload_len */
8451 wqe->xmit_els_rsp.response_payload_len = xmit_len;
James Smart939723a2012-05-09 21:19:03 -04008452 /* word4 */
8453 wqe->xmit_els_rsp.word4 = 0;
James Smart4f774512009-05-22 14:52:35 -04008454 /* word5 iocb=rsvd wge=did */
8455 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
James Smart939723a2012-05-09 21:19:03 -04008456 iocbq->iocb.un.xseq64.xmit_els_remoteID);
8457
8458 if_type = bf_get(lpfc_sli_intf_if_type,
8459 &phba->sli4_hba.sli_intf);
8460 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
8461 if (iocbq->vport->fc_flag & FC_PT2PT) {
8462 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8463 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
8464 iocbq->vport->fc_myDID);
8465 if (iocbq->vport->fc_myDID == Fabric_DID) {
8466 bf_set(wqe_els_did,
8467 &wqe->xmit_els_rsp.wqe_dest, 0);
8468 }
8469 }
8470 }
James Smartf0d9bcc2010-10-22 11:07:09 -04008471 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
8472 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8473 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
8474 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04008475 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart4f774512009-05-22 14:52:35 -04008476 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
James Smartf0d9bcc2010-10-22 11:07:09 -04008477 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smart6d368e52011-05-24 11:44:12 -04008478 phba->vpi_ids[iocbq->vport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04008479 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
8480 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
8481 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
8482 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
8483 LPFC_WQE_LENLOC_WORD3);
8484 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
James Smart6d368e52011-05-24 11:44:12 -04008485 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
8486 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartff78d8f2011-12-13 13:21:35 -05008487 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
8488 iocbq->context2)->virt);
8489 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
James Smart939723a2012-05-09 21:19:03 -04008490 bf_set(els_rsp64_sp, &wqe->xmit_els_rsp, 1);
8491 bf_set(els_rsp64_sid, &wqe->xmit_els_rsp,
James Smartff78d8f2011-12-13 13:21:35 -05008492 iocbq->vport->fc_myDID);
James Smart939723a2012-05-09 21:19:03 -04008493 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com, 1);
8494 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smartff78d8f2011-12-13 13:21:35 -05008495 phba->vpi_ids[phba->pport->vpi]);
8496 }
James Smart4f774512009-05-22 14:52:35 -04008497 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04008498 break;
James Smart4f774512009-05-22 14:52:35 -04008499 case CMD_CLOSE_XRI_CN:
8500 case CMD_ABORT_XRI_CN:
8501 case CMD_ABORT_XRI_CX:
8502 /* words 0-2 memcpy should be 0 rserved */
8503 /* port will send abts */
James Smartdcf2a4e2010-09-29 11:18:53 -04008504 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
8505 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
8506 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
8507 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
8508 } else
8509 fip = 0;
8510
8511 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
James Smart4f774512009-05-22 14:52:35 -04008512 /*
James Smartdcf2a4e2010-09-29 11:18:53 -04008513 * The link is down, or the command was ELS_FIP
8514 * so the fw does not need to send abts
James Smart4f774512009-05-22 14:52:35 -04008515 * on the wire.
8516 */
8517 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
8518 else
8519 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
8520 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smartf0d9bcc2010-10-22 11:07:09 -04008521 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8522 wqe->abort_cmd.rsrvd5 = 0;
8523 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04008524 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
8525 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04008526 /*
8527 * The abort handler will send us CMD_ABORT_XRI_CN or
8528 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8529 */
James Smartf0d9bcc2010-10-22 11:07:09 -04008530 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
8531 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
8532 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
8533 LPFC_WQE_LENLOC_NONE);
James Smart4f774512009-05-22 14:52:35 -04008534 cmnd = CMD_ABORT_XRI_CX;
8535 command_type = OTHER_COMMAND;
8536 xritag = 0;
James Smart7851fe22011-07-22 18:36:52 -04008537 break;
James Smart6669f9b2009-10-02 15:16:45 -04008538 case CMD_XMIT_BLS_RSP64_CX:
James Smart6b5151f2012-01-18 16:24:06 -05008539 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart546fc852011-03-11 16:06:29 -05008540 /* As BLS ABTS RSP WQE is very different from other WQEs,
James Smart6669f9b2009-10-02 15:16:45 -04008541 * we re-construct this WQE here based on information in
8542 * iocbq from scratch.
8543 */
8544 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05008545 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04008546 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05008547 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
8548 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
James Smart5ffc2662009-11-18 15:39:44 -05008549 LPFC_ABTS_UNSOL_INT) {
8550 /* ABTS sent by initiator to CT exchange, the
8551 * RX_ID field will be filled with the newly
8552 * allocated responder XRI.
8553 */
8554 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8555 iocbq->sli4_xritag);
8556 } else {
8557 /* ABTS sent by responder to CT exchange, the
8558 * RX_ID field will be filled with the responder
8559 * RX_ID from ABTS.
8560 */
8561 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05008562 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
James Smart5ffc2662009-11-18 15:39:44 -05008563 }
James Smart6669f9b2009-10-02 15:16:45 -04008564 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8565 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
James Smart6b5151f2012-01-18 16:24:06 -05008566
8567 /* Use CT=VPI */
8568 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8569 ndlp->nlp_DID);
8570 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8571 iocbq->iocb.ulpContext);
8572 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
James Smart6669f9b2009-10-02 15:16:45 -04008573 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
James Smart6b5151f2012-01-18 16:24:06 -05008574 phba->vpi_ids[phba->pport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04008575 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8576 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8577 LPFC_WQE_LENLOC_NONE);
James Smart6669f9b2009-10-02 15:16:45 -04008578 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8579 command_type = OTHER_COMMAND;
James Smart546fc852011-03-11 16:06:29 -05008580 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8581 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8582 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8583 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8584 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8585 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8586 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8587 }
8588
James Smart7851fe22011-07-22 18:36:52 -04008589 break;
James Smart4f774512009-05-22 14:52:35 -04008590 case CMD_XRI_ABORTED_CX:
8591 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
James Smart4f774512009-05-22 14:52:35 -04008592 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8593 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8594 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8595 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8596 default:
8597 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8598 "2014 Invalid command 0x%x\n",
8599 iocbq->iocb.ulpCommand);
8600 return IOCB_ERROR;
James Smart7851fe22011-07-22 18:36:52 -04008601 break;
James Smart4f774512009-05-22 14:52:35 -04008602 }
James Smart6d368e52011-05-24 11:44:12 -04008603
James Smart8012cc32012-10-31 14:44:49 -04008604 if (iocbq->iocb_flag & LPFC_IO_DIF_PASS)
8605 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_PASSTHRU);
8606 else if (iocbq->iocb_flag & LPFC_IO_DIF_STRIP)
8607 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_STRIP);
8608 else if (iocbq->iocb_flag & LPFC_IO_DIF_INSERT)
8609 bf_set(wqe_dif, &wqe->generic.wqe_com, LPFC_WQE_DIF_INSERT);
8610 iocbq->iocb_flag &= ~(LPFC_IO_DIF_PASS | LPFC_IO_DIF_STRIP |
8611 LPFC_IO_DIF_INSERT);
James Smartf0d9bcc2010-10-22 11:07:09 -04008612 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8613 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8614 wqe->generic.wqe_com.abort_tag = abort_tag;
8615 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8616 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8617 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8618 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
James Smart4f774512009-05-22 14:52:35 -04008619 return 0;
8620}
8621
8622/**
8623 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8624 * @phba: Pointer to HBA context object.
8625 * @ring_number: SLI ring number to issue iocb on.
8626 * @piocb: Pointer to command iocb.
8627 * @flag: Flag indicating if this command can be put into txq.
8628 *
8629 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8630 * an iocb command to an HBA with SLI-4 interface spec.
8631 *
8632 * This function is called with hbalock held. The function will return success
8633 * after it successfully submit the iocb to firmware or after adding to the
8634 * txq.
8635 **/
8636static int
8637__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8638 struct lpfc_iocbq *piocb, uint32_t flag)
8639{
8640 struct lpfc_sglq *sglq;
James Smart4f774512009-05-22 14:52:35 -04008641 union lpfc_wqe wqe;
James Smart1ba981f2014-02-20 09:56:45 -05008642 struct lpfc_queue *wq;
James Smart4f774512009-05-22 14:52:35 -04008643 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
James Smart4f774512009-05-22 14:52:35 -04008644
8645 if (piocb->sli4_xritag == NO_XRI) {
8646 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6b5151f2012-01-18 16:24:06 -05008647 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04008648 sglq = NULL;
8649 else {
James Smart0e9bb8d2013-03-01 16:35:12 -05008650 if (!list_empty(&pring->txq)) {
James Smart2a9bf3d2010-06-07 15:24:45 -04008651 if (!(flag & SLI_IOCB_RET_IOCB)) {
8652 __lpfc_sli_ringtx_put(phba,
8653 pring, piocb);
8654 return IOCB_SUCCESS;
8655 } else {
8656 return IOCB_BUSY;
8657 }
8658 } else {
James Smart6d368e52011-05-24 11:44:12 -04008659 sglq = __lpfc_sli_get_sglq(phba, piocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04008660 if (!sglq) {
8661 if (!(flag & SLI_IOCB_RET_IOCB)) {
8662 __lpfc_sli_ringtx_put(phba,
8663 pring,
8664 piocb);
8665 return IOCB_SUCCESS;
8666 } else
8667 return IOCB_BUSY;
8668 }
8669 }
James Smart4f774512009-05-22 14:52:35 -04008670 }
8671 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
James Smart6d368e52011-05-24 11:44:12 -04008672 /* These IO's already have an XRI and a mapped sgl. */
8673 sglq = NULL;
James Smart4f774512009-05-22 14:52:35 -04008674 } else {
James Smart6d368e52011-05-24 11:44:12 -04008675 /*
8676 * This is a continuation of a commandi,(CX) so this
James Smart4f774512009-05-22 14:52:35 -04008677 * sglq is on the active list
8678 */
James Smartedccdc12013-01-03 15:43:45 -05008679 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_lxritag);
James Smart4f774512009-05-22 14:52:35 -04008680 if (!sglq)
8681 return IOCB_ERROR;
8682 }
8683
8684 if (sglq) {
James Smart6d368e52011-05-24 11:44:12 -04008685 piocb->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04008686 piocb->sli4_xritag = sglq->sli4_xritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04008687 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
James Smart4f774512009-05-22 14:52:35 -04008688 return IOCB_ERROR;
8689 }
8690
8691 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8692 return IOCB_ERROR;
8693
James Smart341af102010-01-26 23:07:37 -05008694 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
James Smart1ba981f2014-02-20 09:56:45 -05008695 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smartf38fa0b2014-04-04 13:52:21 -04008696 if (!phba->cfg_fof || (!(piocb->iocb_flag & LPFC_IO_OAS))) {
James Smart1ba981f2014-02-20 09:56:45 -05008697 wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
8698 } else {
8699 wq = phba->sli4_hba.oas_wq;
8700 }
8701 if (lpfc_sli4_wq_put(wq, &wqe))
James Smart4f774512009-05-22 14:52:35 -04008702 return IOCB_ERROR;
8703 } else {
James Smartea714f32013-04-17 20:18:47 -04008704 if (unlikely(!phba->sli4_hba.els_wq))
8705 return IOCB_ERROR;
James Smart4f774512009-05-22 14:52:35 -04008706 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8707 return IOCB_ERROR;
8708 }
8709 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8710
8711 return 0;
8712}
8713
8714/**
James Smart3772a992009-05-22 14:50:54 -04008715 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8716 *
8717 * This routine wraps the actual lockless version for issusing IOCB function
8718 * pointer from the lpfc_hba struct.
8719 *
8720 * Return codes:
8721 * IOCB_ERROR - Error
8722 * IOCB_SUCCESS - Success
8723 * IOCB_BUSY - Busy
8724 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04008725int
James Smart3772a992009-05-22 14:50:54 -04008726__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8727 struct lpfc_iocbq *piocb, uint32_t flag)
8728{
8729 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8730}
8731
8732/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03008733 * lpfc_sli_api_table_setup - Set up sli api function jump table
James Smart3772a992009-05-22 14:50:54 -04008734 * @phba: The hba struct for which this call is being executed.
8735 * @dev_grp: The HBA PCI-Device group number.
8736 *
8737 * This routine sets up the SLI interface API function jump table in @phba
8738 * struct.
8739 * Returns: 0 - success, -ENODEV - failure.
8740 **/
8741int
8742lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8743{
8744
8745 switch (dev_grp) {
8746 case LPFC_PCI_DEV_LP:
8747 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8748 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8749 break;
James Smart4f774512009-05-22 14:52:35 -04008750 case LPFC_PCI_DEV_OC:
8751 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8752 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8753 break;
James Smart3772a992009-05-22 14:50:54 -04008754 default:
8755 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8756 "1419 Invalid HBA PCI-device group: 0x%x\n",
8757 dev_grp);
8758 return -ENODEV;
8759 break;
8760 }
8761 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8762 return 0;
8763}
James Smart92d7f7b2007-06-17 19:56:38 -05008764
James Smarta1efe162015-05-21 13:55:20 -04008765/**
8766 * lpfc_sli_calc_ring - Calculates which ring to use
8767 * @phba: Pointer to HBA context object.
8768 * @ring_number: Initial ring
8769 * @piocb: Pointer to command iocb.
8770 *
8771 * For SLI4, FCP IO can deferred to one fo many WQs, based on
8772 * fcp_wqidx, thus we need to calculate the corresponding ring.
8773 * Since ABORTS must go on the same WQ of the command they are
8774 * aborting, we use command's fcp_wqidx.
8775 */
James Smart9bd2bff52014-09-03 12:57:30 -04008776int
8777lpfc_sli_calc_ring(struct lpfc_hba *phba, uint32_t ring_number,
8778 struct lpfc_iocbq *piocb)
8779{
James Smart8b0dff12015-05-22 10:42:38 -04008780 if (phba->sli_rev < LPFC_SLI_REV4)
8781 return ring_number;
8782
8783 if (piocb->iocb_flag & (LPFC_IO_FCP | LPFC_USE_FCPWQIDX)) {
8784 if (!(phba->cfg_fof) ||
8785 (!(piocb->iocb_flag & LPFC_IO_FOF))) {
8786 if (unlikely(!phba->sli4_hba.fcp_wq))
8787 return LPFC_HBA_ERROR;
8788 /*
8789 * for abort iocb fcp_wqidx should already
8790 * be setup based on what work queue we used.
8791 */
8792 if (!(piocb->iocb_flag & LPFC_USE_FCPWQIDX))
8793 piocb->fcp_wqidx =
8794 lpfc_sli4_scmd_to_wqidx_distr(phba,
8795 piocb->context1);
8796 ring_number = MAX_SLI3_CONFIGURED_RINGS +
8797 piocb->fcp_wqidx;
8798 } else {
8799 if (unlikely(!phba->sli4_hba.oas_wq))
8800 return LPFC_HBA_ERROR;
8801 piocb->fcp_wqidx = 0;
8802 ring_number = LPFC_FCP_OAS_RING;
James Smart9bd2bff52014-09-03 12:57:30 -04008803 }
8804 }
8805 return ring_number;
8806}
8807
James Smarte59058c2008-08-24 21:49:00 -04008808/**
James Smart3621a712009-04-06 18:47:14 -04008809 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04008810 * @phba: Pointer to HBA context object.
8811 * @pring: Pointer to driver SLI ring object.
8812 * @piocb: Pointer to command iocb.
8813 * @flag: Flag indicating if this command can be put into txq.
8814 *
8815 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8816 * function. This function gets the hbalock and calls
8817 * __lpfc_sli_issue_iocb function and will return the error returned
8818 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8819 * functions which do not hold hbalock.
8820 **/
James Smart92d7f7b2007-06-17 19:56:38 -05008821int
James Smart3772a992009-05-22 14:50:54 -04008822lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05008823 struct lpfc_iocbq *piocb, uint32_t flag)
8824{
James Smartba20c852012-08-03 12:36:52 -04008825 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
James Smart2a76a282012-08-03 12:35:54 -04008826 struct lpfc_sli_ring *pring;
James Smartba20c852012-08-03 12:36:52 -04008827 struct lpfc_queue *fpeq;
8828 struct lpfc_eqe *eqe;
James Smart92d7f7b2007-06-17 19:56:38 -05008829 unsigned long iflags;
James Smart2a76a282012-08-03 12:35:54 -04008830 int rc, idx;
James Smart92d7f7b2007-06-17 19:56:38 -05008831
James Smart7e56aa22012-08-03 12:35:34 -04008832 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smart9bd2bff52014-09-03 12:57:30 -04008833 ring_number = lpfc_sli_calc_ring(phba, ring_number, piocb);
8834 if (unlikely(ring_number == LPFC_HBA_ERROR))
8835 return IOCB_ERROR;
8836 idx = piocb->fcp_wqidx;
James Smartba20c852012-08-03 12:36:52 -04008837
James Smart9bd2bff52014-09-03 12:57:30 -04008838 pring = &phba->sli.ring[ring_number];
8839 spin_lock_irqsave(&pring->ring_lock, iflags);
8840 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8841 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smartba20c852012-08-03 12:36:52 -04008842
James Smart9bd2bff52014-09-03 12:57:30 -04008843 if (lpfc_fcp_look_ahead && (piocb->iocb_flag & LPFC_IO_FCP)) {
8844 fcp_eq_hdl = &phba->sli4_hba.fcp_eq_hdl[idx];
James Smartba20c852012-08-03 12:36:52 -04008845
James Smart9bd2bff52014-09-03 12:57:30 -04008846 if (atomic_dec_and_test(&fcp_eq_hdl->
8847 fcp_eq_in_use)) {
James Smartba20c852012-08-03 12:36:52 -04008848
James Smart9bd2bff52014-09-03 12:57:30 -04008849 /* Get associated EQ with this index */
8850 fpeq = phba->sli4_hba.hba_eq[idx];
James Smartba20c852012-08-03 12:36:52 -04008851
James Smart9bd2bff52014-09-03 12:57:30 -04008852 /* Turn off interrupts from this EQ */
8853 lpfc_sli4_eq_clr_intr(fpeq);
James Smartba20c852012-08-03 12:36:52 -04008854
James Smart9bd2bff52014-09-03 12:57:30 -04008855 /*
8856 * Process all the events on FCP EQ
8857 */
8858 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
8859 lpfc_sli4_hba_handle_eqe(phba,
8860 eqe, idx);
8861 fpeq->EQ_processed++;
James Smartba20c852012-08-03 12:36:52 -04008862 }
James Smartba20c852012-08-03 12:36:52 -04008863
James Smart9bd2bff52014-09-03 12:57:30 -04008864 /* Always clear and re-arm the EQ */
8865 lpfc_sli4_eq_release(fpeq,
8866 LPFC_QUEUE_REARM);
8867 }
8868 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
James Smart2a76a282012-08-03 12:35:54 -04008869 }
James Smart7e56aa22012-08-03 12:35:34 -04008870 } else {
8871 /* For now, SLI2/3 will still use hbalock */
8872 spin_lock_irqsave(&phba->hbalock, iflags);
8873 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8874 spin_unlock_irqrestore(&phba->hbalock, iflags);
8875 }
James Smart92d7f7b2007-06-17 19:56:38 -05008876 return rc;
8877}
8878
James Smarte59058c2008-08-24 21:49:00 -04008879/**
James Smart3621a712009-04-06 18:47:14 -04008880 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04008881 * @phba: Pointer to HBA context object.
8882 *
8883 * This function is called while driver attaches with the
8884 * HBA to setup the extra ring. The extra ring is used
8885 * only when driver needs to support target mode functionality
8886 * or IP over FC functionalities.
8887 *
8888 * This function is called with no lock held.
8889 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008890static int
8891lpfc_extra_ring_setup( struct lpfc_hba *phba)
8892{
8893 struct lpfc_sli *psli;
8894 struct lpfc_sli_ring *pring;
8895
8896 psli = &phba->sli;
8897
8898 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05008899
8900 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008901 pring = &psli->ring[psli->fcp_ring];
James Smart7e56aa22012-08-03 12:35:34 -04008902 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8903 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8904 pring->sli.sli3.numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8905 pring->sli.sli3.numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008906
James Smarta4bc3372006-12-02 13:34:16 -05008907 /* and give them to the extra ring */
8908 pring = &psli->ring[psli->extra_ring];
8909
James Smart7e56aa22012-08-03 12:35:34 -04008910 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8911 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8912 pring->sli.sli3.numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8913 pring->sli.sli3.numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008914
8915 /* Setup default profile for this ring */
8916 pring->iotag_max = 4096;
8917 pring->num_mask = 1;
8918 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05008919 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8920 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008921 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8922 return 0;
8923}
8924
James Smartcb69f7d2011-12-13 13:21:57 -05008925/* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8926 * @phba: Pointer to HBA context object.
8927 * @iocbq: Pointer to iocb object.
8928 *
8929 * The async_event handler calls this routine when it receives
8930 * an ASYNC_STATUS_CN event from the port. The port generates
8931 * this event when an Abort Sequence request to an rport fails
8932 * twice in succession. The abort could be originated by the
8933 * driver or by the port. The ABTS could have been for an ELS
8934 * or FCP IO. The port only generates this event when an ABTS
8935 * fails to complete after one retry.
8936 */
8937static void
8938lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8939 struct lpfc_iocbq *iocbq)
8940{
8941 struct lpfc_nodelist *ndlp = NULL;
8942 uint16_t rpi = 0, vpi = 0;
8943 struct lpfc_vport *vport = NULL;
8944
8945 /* The rpi in the ulpContext is vport-sensitive. */
8946 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8947 rpi = iocbq->iocb.ulpContext;
8948
8949 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8950 "3092 Port generated ABTS async event "
8951 "on vpi %d rpi %d status 0x%x\n",
8952 vpi, rpi, iocbq->iocb.ulpStatus);
8953
8954 vport = lpfc_find_vport_by_vpid(phba, vpi);
8955 if (!vport)
8956 goto err_exit;
8957 ndlp = lpfc_findnode_rpi(vport, rpi);
8958 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8959 goto err_exit;
8960
8961 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8962 lpfc_sli_abts_recover_port(vport, ndlp);
8963 return;
8964
8965 err_exit:
8966 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8967 "3095 Event Context not found, no "
8968 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8969 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8970 vpi, rpi);
8971}
8972
8973/* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8974 * @phba: pointer to HBA context object.
8975 * @ndlp: nodelist pointer for the impacted rport.
8976 * @axri: pointer to the wcqe containing the failed exchange.
8977 *
8978 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8979 * port. The port generates this event when an abort exchange request to an
8980 * rport fails twice in succession with no reply. The abort could be originated
8981 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8982 */
8983void
8984lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8985 struct lpfc_nodelist *ndlp,
8986 struct sli4_wcqe_xri_aborted *axri)
8987{
8988 struct lpfc_vport *vport;
James Smart5c1db2a2012-03-01 22:34:36 -05008989 uint32_t ext_status = 0;
James Smartcb69f7d2011-12-13 13:21:57 -05008990
James Smart6b5151f2012-01-18 16:24:06 -05008991 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
James Smartcb69f7d2011-12-13 13:21:57 -05008992 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8993 "3115 Node Context not found, driver "
8994 "ignoring abts err event\n");
James Smart6b5151f2012-01-18 16:24:06 -05008995 return;
8996 }
8997
James Smartcb69f7d2011-12-13 13:21:57 -05008998 vport = ndlp->vport;
8999 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9000 "3116 Port generated FCP XRI ABORT event on "
James Smart5c1db2a2012-03-01 22:34:36 -05009001 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
James Smart8e668af2013-05-31 17:04:28 -04009002 ndlp->vport->vpi, phba->sli4_hba.rpi_ids[ndlp->nlp_rpi],
James Smartcb69f7d2011-12-13 13:21:57 -05009003 bf_get(lpfc_wcqe_xa_xri, axri),
James Smart5c1db2a2012-03-01 22:34:36 -05009004 bf_get(lpfc_wcqe_xa_status, axri),
9005 axri->parameter);
James Smartcb69f7d2011-12-13 13:21:57 -05009006
James Smart5c1db2a2012-03-01 22:34:36 -05009007 /*
9008 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9009 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9010 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9011 */
James Smarte3d2b802012-08-14 14:25:43 -04009012 ext_status = axri->parameter & IOERR_PARAM_MASK;
James Smart5c1db2a2012-03-01 22:34:36 -05009013 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
9014 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
James Smartcb69f7d2011-12-13 13:21:57 -05009015 lpfc_sli_abts_recover_port(vport, ndlp);
9016}
9017
James Smarte59058c2008-08-24 21:49:00 -04009018/**
James Smart3621a712009-04-06 18:47:14 -04009019 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04009020 * @phba: Pointer to HBA context object.
9021 * @pring: Pointer to driver SLI ring object.
9022 * @iocbq: Pointer to iocb object.
9023 *
9024 * This function is called by the slow ring event handler
9025 * function when there is an ASYNC event iocb in the ring.
9026 * This function is called with no lock held.
9027 * Currently this function handles only temperature related
9028 * ASYNC events. The function decodes the temperature sensor
9029 * event message and posts events for the management applications.
9030 **/
James Smart98c9ea52007-10-27 13:37:33 -04009031static void
James Smart57127f12007-10-27 13:37:05 -04009032lpfc_sli_async_event_handler(struct lpfc_hba * phba,
9033 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
9034{
9035 IOCB_t *icmd;
9036 uint16_t evt_code;
James Smart57127f12007-10-27 13:37:05 -04009037 struct temp_event temp_event_data;
9038 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04009039 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04009040
9041 icmd = &iocbq->iocb;
9042 evt_code = icmd->un.asyncstat.evt_code;
James Smart57127f12007-10-27 13:37:05 -04009043
James Smartcb69f7d2011-12-13 13:21:57 -05009044 switch (evt_code) {
9045 case ASYNC_TEMP_WARN:
9046 case ASYNC_TEMP_SAFE:
9047 temp_event_data.data = (uint32_t) icmd->ulpContext;
9048 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
9049 if (evt_code == ASYNC_TEMP_WARN) {
9050 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
9051 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9052 "0347 Adapter is very hot, please take "
9053 "corrective action. temperature : %d Celsius\n",
9054 (uint32_t) icmd->ulpContext);
9055 } else {
9056 temp_event_data.event_code = LPFC_NORMAL_TEMP;
9057 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
9058 "0340 Adapter temperature is OK now. "
9059 "temperature : %d Celsius\n",
9060 (uint32_t) icmd->ulpContext);
9061 }
9062
9063 /* Send temperature change event to applications */
9064 shost = lpfc_shost_from_vport(phba->pport);
9065 fc_host_post_vendor_event(shost, fc_get_event_number(),
9066 sizeof(temp_event_data), (char *) &temp_event_data,
9067 LPFC_NL_VENDOR_ID);
9068 break;
9069 case ASYNC_STATUS_CN:
9070 lpfc_sli_abts_err_handler(phba, iocbq);
9071 break;
9072 default:
James Smarta257bf92009-04-06 18:48:10 -04009073 iocb_w = (uint32_t *) icmd;
James Smartcb69f7d2011-12-13 13:21:57 -05009074 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04009075 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04009076 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04009077 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9078 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9079 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9080 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smartcb69f7d2011-12-13 13:21:57 -05009081 pring->ringno, icmd->un.asyncstat.evt_code,
James Smarta257bf92009-04-06 18:48:10 -04009082 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
9083 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
9084 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
9085 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
9086
James Smartcb69f7d2011-12-13 13:21:57 -05009087 break;
James Smart57127f12007-10-27 13:37:05 -04009088 }
James Smart57127f12007-10-27 13:37:05 -04009089}
9090
9091
James Smarte59058c2008-08-24 21:49:00 -04009092/**
James Smart3621a712009-04-06 18:47:14 -04009093 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04009094 * @phba: Pointer to HBA context object.
9095 *
9096 * lpfc_sli_setup sets up rings of the SLI interface with
9097 * number of iocbs per ring and iotags. This function is
9098 * called while driver attach to the HBA and before the
9099 * interrupts are enabled. So there is no need for locking.
9100 *
9101 * This function always returns 0.
9102 **/
dea31012005-04-17 16:05:31 -05009103int
9104lpfc_sli_setup(struct lpfc_hba *phba)
9105{
James Smarted957682007-06-17 19:56:37 -05009106 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05009107 struct lpfc_sli *psli = &phba->sli;
9108 struct lpfc_sli_ring *pring;
9109
James Smart2a76a282012-08-03 12:35:54 -04009110 psli->num_rings = MAX_SLI3_CONFIGURED_RINGS;
9111 if (phba->sli_rev == LPFC_SLI_REV4)
James Smart67d12732012-08-03 12:36:13 -04009112 psli->num_rings += phba->cfg_fcp_io_channel;
dea31012005-04-17 16:05:31 -05009113 psli->sli_flag = 0;
9114 psli->fcp_ring = LPFC_FCP_RING;
9115 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05009116 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05009117
James Bottomley604a3e32005-10-29 10:28:33 -05009118 psli->iocbq_lookup = NULL;
9119 psli->iocbq_lookup_len = 0;
9120 psli->last_iotag = 0;
9121
dea31012005-04-17 16:05:31 -05009122 for (i = 0; i < psli->num_rings; i++) {
9123 pring = &psli->ring[i];
9124 switch (i) {
9125 case LPFC_FCP_RING: /* ring 0 - FCP */
9126 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009127 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
9128 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
9129 pring->sli.sli3.numCiocb +=
9130 SLI2_IOCB_CMD_R1XTRA_ENTRIES;
9131 pring->sli.sli3.numRiocb +=
9132 SLI2_IOCB_RSP_R1XTRA_ENTRIES;
9133 pring->sli.sli3.numCiocb +=
9134 SLI2_IOCB_CMD_R3XTRA_ENTRIES;
9135 pring->sli.sli3.numRiocb +=
9136 SLI2_IOCB_RSP_R3XTRA_ENTRIES;
9137 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009138 SLI3_IOCB_CMD_SIZE :
9139 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009140 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009141 SLI3_IOCB_RSP_SIZE :
9142 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05009143 pring->iotag_ctr = 0;
9144 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05009145 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05009146 pring->fast_iotag = pring->iotag_max;
9147 pring->num_mask = 0;
9148 break;
James Smarta4bc3372006-12-02 13:34:16 -05009149 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05009150 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009151 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
9152 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
9153 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009154 SLI3_IOCB_CMD_SIZE :
9155 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009156 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009157 SLI3_IOCB_RSP_SIZE :
9158 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05009159 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05009160 pring->num_mask = 0;
9161 break;
9162 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
9163 /* numCiocb and numRiocb are used in config_port */
James Smart7e56aa22012-08-03 12:35:34 -04009164 pring->sli.sli3.numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
9165 pring->sli.sli3.numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
9166 pring->sli.sli3.sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009167 SLI3_IOCB_CMD_SIZE :
9168 SLI2_IOCB_CMD_SIZE;
James Smart7e56aa22012-08-03 12:35:34 -04009169 pring->sli.sli3.sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05009170 SLI3_IOCB_RSP_SIZE :
9171 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05009172 pring->fast_iotag = 0;
9173 pring->iotag_ctr = 0;
9174 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04009175 pring->lpfc_sli_rcv_async_status =
9176 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04009177 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05009178 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04009179 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
9180 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05009181 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009182 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05009183 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04009184 pring->prt[1].rctl = FC_RCTL_ELS_REP;
9185 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05009186 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009187 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05009188 pring->prt[2].profile = 0; /* Mask 2 */
9189 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04009190 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05009191 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04009192 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05009193 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009194 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05009195 pring->prt[3].profile = 0; /* Mask 3 */
9196 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04009197 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05009198 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04009199 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05009200 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05009201 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05009202 break;
9203 }
James Smart7e56aa22012-08-03 12:35:34 -04009204 totiocbsize += (pring->sli.sli3.numCiocb *
9205 pring->sli.sli3.sizeCiocb) +
9206 (pring->sli.sli3.numRiocb * pring->sli.sli3.sizeRiocb);
dea31012005-04-17 16:05:31 -05009207 }
James Smarted957682007-06-17 19:56:37 -05009208 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05009209 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04009210 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
9211 "SLI2 SLIM Data: x%x x%lx\n",
9212 phba->brd_no, totiocbsize,
9213 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05009214 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05009215 if (phba->cfg_multi_ring_support == 2)
9216 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05009217
9218 return 0;
9219}
9220
James Smarte59058c2008-08-24 21:49:00 -04009221/**
James Smart3621a712009-04-06 18:47:14 -04009222 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04009223 * @phba: Pointer to HBA context object.
9224 *
9225 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9226 * ring. This function also initializes ring indices of each ring.
9227 * This function is called during the initialization of the SLI
9228 * interface of an HBA.
9229 * This function is called with no lock held and always returns
9230 * 1.
9231 **/
dea31012005-04-17 16:05:31 -05009232int
James Smart2e0fef82007-06-17 19:56:36 -05009233lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05009234{
9235 struct lpfc_sli *psli;
9236 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05009237 int i;
dea31012005-04-17 16:05:31 -05009238
9239 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05009240 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009241 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05009242 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05009243 /* Initialize list headers for txq and txcmplq as double linked lists */
9244 for (i = 0; i < psli->num_rings; i++) {
9245 pring = &psli->ring[i];
9246 pring->ringno = i;
James Smart7e56aa22012-08-03 12:35:34 -04009247 pring->sli.sli3.next_cmdidx = 0;
9248 pring->sli.sli3.local_getidx = 0;
9249 pring->sli.sli3.cmdidx = 0;
James Smart68e814f2014-05-21 08:04:59 -04009250 pring->flag = 0;
dea31012005-04-17 16:05:31 -05009251 INIT_LIST_HEAD(&pring->txq);
9252 INIT_LIST_HEAD(&pring->txcmplq);
9253 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05009254 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05009255 INIT_LIST_HEAD(&pring->postbufq);
James Smart7e56aa22012-08-03 12:35:34 -04009256 spin_lock_init(&pring->ring_lock);
dea31012005-04-17 16:05:31 -05009257 }
James Smart2e0fef82007-06-17 19:56:36 -05009258 spin_unlock_irq(&phba->hbalock);
9259 return 1;
dea31012005-04-17 16:05:31 -05009260}
9261
James Smarte59058c2008-08-24 21:49:00 -04009262/**
James Smart04c68492009-05-22 14:52:52 -04009263 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9264 * @phba: Pointer to HBA context object.
9265 *
9266 * This routine flushes the mailbox command subsystem. It will unconditionally
9267 * flush all the mailbox commands in the three possible stages in the mailbox
9268 * command sub-system: pending mailbox command queue; the outstanding mailbox
9269 * command; and completed mailbox command queue. It is caller's responsibility
9270 * to make sure that the driver is in the proper state to flush the mailbox
9271 * command sub-system. Namely, the posting of mailbox commands into the
9272 * pending mailbox command queue from the various clients must be stopped;
9273 * either the HBA is in a state that it will never works on the outstanding
9274 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9275 * mailbox command has been completed.
9276 **/
9277static void
9278lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
9279{
9280 LIST_HEAD(completions);
9281 struct lpfc_sli *psli = &phba->sli;
9282 LPFC_MBOXQ_t *pmb;
9283 unsigned long iflag;
9284
9285 /* Flush all the mailbox commands in the mbox system */
9286 spin_lock_irqsave(&phba->hbalock, iflag);
9287 /* The pending mailbox command queue */
9288 list_splice_init(&phba->sli.mboxq, &completions);
9289 /* The outstanding active mailbox command */
9290 if (psli->mbox_active) {
9291 list_add_tail(&psli->mbox_active->list, &completions);
9292 psli->mbox_active = NULL;
9293 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9294 }
9295 /* The completed mailbox command queue */
9296 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
9297 spin_unlock_irqrestore(&phba->hbalock, iflag);
9298
9299 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9300 while (!list_empty(&completions)) {
9301 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
9302 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
9303 if (pmb->mbox_cmpl)
9304 pmb->mbox_cmpl(phba, pmb);
9305 }
9306}
9307
9308/**
James Smart3621a712009-04-06 18:47:14 -04009309 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04009310 * @vport: Pointer to virtual port object.
9311 *
9312 * lpfc_sli_host_down is called to clean up the resources
9313 * associated with a vport before destroying virtual
9314 * port data structures.
9315 * This function does following operations:
9316 * - Free discovery resources associated with this virtual
9317 * port.
9318 * - Free iocbs associated with this virtual port in
9319 * the txq.
9320 * - Send abort for all iocb commands associated with this
9321 * vport in txcmplq.
9322 *
9323 * This function is called with no lock held and always returns 1.
9324 **/
dea31012005-04-17 16:05:31 -05009325int
James Smart92d7f7b2007-06-17 19:56:38 -05009326lpfc_sli_host_down(struct lpfc_vport *vport)
9327{
James Smart858c9f62007-06-17 19:56:39 -05009328 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05009329 struct lpfc_hba *phba = vport->phba;
9330 struct lpfc_sli *psli = &phba->sli;
9331 struct lpfc_sli_ring *pring;
9332 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05009333 int i;
9334 unsigned long flags = 0;
9335 uint16_t prev_pring_flag;
9336
9337 lpfc_cleanup_discovery_resources(vport);
9338
9339 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05009340 for (i = 0; i < psli->num_rings; i++) {
9341 pring = &psli->ring[i];
9342 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04009343 /* Only slow rings */
9344 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05009345 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04009346 /* Set the lpfc data pending flag */
9347 set_bit(LPFC_DATA_READY, &phba->data_flags);
9348 }
James Smart92d7f7b2007-06-17 19:56:38 -05009349 /*
9350 * Error everything on the txq since these iocbs have not been
9351 * given to the FW yet.
9352 */
James Smart92d7f7b2007-06-17 19:56:38 -05009353 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
9354 if (iocb->vport != vport)
9355 continue;
James Smart858c9f62007-06-17 19:56:39 -05009356 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05009357 }
9358
9359 /* Next issue ABTS for everything on the txcmplq */
9360 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
9361 list) {
9362 if (iocb->vport != vport)
9363 continue;
9364 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
9365 }
9366
9367 pring->flag = prev_pring_flag;
9368 }
9369
9370 spin_unlock_irqrestore(&phba->hbalock, flags);
9371
James Smarta257bf92009-04-06 18:48:10 -04009372 /* Cancel all the IOCBs from the completions list */
9373 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9374 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05009375 return 1;
9376}
9377
James Smarte59058c2008-08-24 21:49:00 -04009378/**
James Smart3621a712009-04-06 18:47:14 -04009379 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04009380 * @phba: Pointer to HBA context object.
9381 *
9382 * This function cleans up all iocb, buffers, mailbox commands
9383 * while shutting down the HBA. This function is called with no
9384 * lock held and always returns 1.
9385 * This function does the following to cleanup driver resources:
9386 * - Free discovery resources for each virtual port
9387 * - Cleanup any pending fabric iocbs
9388 * - Iterate through the iocb txq and free each entry
9389 * in the list.
9390 * - Free up any buffer posted to the HBA
9391 * - Free mailbox commands in the mailbox queue.
9392 **/
James Smart92d7f7b2007-06-17 19:56:38 -05009393int
James Smart2e0fef82007-06-17 19:56:36 -05009394lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05009395{
James Smart2534ba72007-04-25 09:52:20 -04009396 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05009397 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05009398 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05009399 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05009400 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04009401 int i;
9402
9403 /* Shutdown the mailbox command sub-system */
James Smart618a5232012-06-12 13:54:36 -04009404 lpfc_sli_mbox_sys_shutdown(phba, LPFC_MBX_WAIT);
dea31012005-04-17 16:05:31 -05009405
dea31012005-04-17 16:05:31 -05009406 lpfc_hba_down_prep(phba);
9407
James Smart92d7f7b2007-06-17 19:56:38 -05009408 lpfc_fabric_abort_hba(phba);
9409
James Smart2e0fef82007-06-17 19:56:36 -05009410 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05009411 for (i = 0; i < psli->num_rings; i++) {
9412 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04009413 /* Only slow rings */
9414 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05009415 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04009416 /* Set the lpfc data pending flag */
9417 set_bit(LPFC_DATA_READY, &phba->data_flags);
9418 }
dea31012005-04-17 16:05:31 -05009419
9420 /*
9421 * Error everything on the txq since these iocbs have not been
9422 * given to the FW yet.
9423 */
James Smart2534ba72007-04-25 09:52:20 -04009424 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05009425 }
James Smart2e0fef82007-06-17 19:56:36 -05009426 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05009427
James Smarta257bf92009-04-06 18:48:10 -04009428 /* Cancel all the IOCBs from the completions list */
9429 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9430 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04009431
James Smart0ff10d42008-01-11 01:52:36 -05009432 spin_lock_irqsave(&phba->hbalock, flags);
9433 list_splice_init(&phba->elsbuf, &completions);
9434 phba->elsbuf_cnt = 0;
9435 phba->elsbuf_prev_cnt = 0;
9436 spin_unlock_irqrestore(&phba->hbalock, flags);
9437
9438 while (!list_empty(&completions)) {
9439 list_remove_head(&completions, buf_ptr,
9440 struct lpfc_dmabuf, list);
9441 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
9442 kfree(buf_ptr);
9443 }
9444
dea31012005-04-17 16:05:31 -05009445 /* Return any active mbox cmds */
9446 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05009447
James Smartda0436e2009-05-22 14:51:39 -04009448 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05009449 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04009450 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05009451
James Smartda0436e2009-05-22 14:51:39 -04009452 return 1;
9453}
James Smart92d7f7b2007-06-17 19:56:38 -05009454
James Smartda0436e2009-05-22 14:51:39 -04009455/**
James Smart3621a712009-04-06 18:47:14 -04009456 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04009457 * @srcp: Source memory pointer.
9458 * @destp: Destination memory pointer.
9459 * @cnt: Number of words required to be copied.
9460 *
9461 * This function is used for copying data between driver memory
9462 * and the SLI memory. This function also changes the endianness
9463 * of each word if native endianness is different from SLI
9464 * endianness. This function can be called with or without
9465 * lock.
9466 **/
dea31012005-04-17 16:05:31 -05009467void
9468lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
9469{
9470 uint32_t *src = srcp;
9471 uint32_t *dest = destp;
9472 uint32_t ldata;
9473 int i;
9474
9475 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
9476 ldata = *src;
9477 ldata = le32_to_cpu(ldata);
9478 *dest = ldata;
9479 src++;
9480 dest++;
9481 }
9482}
9483
James Smarte59058c2008-08-24 21:49:00 -04009484
9485/**
James Smarta0c87cb2009-07-19 10:01:10 -04009486 * lpfc_sli_bemem_bcopy - SLI memory copy function
9487 * @srcp: Source memory pointer.
9488 * @destp: Destination memory pointer.
9489 * @cnt: Number of words required to be copied.
9490 *
9491 * This function is used for copying data between a data structure
9492 * with big endian representation to local endianness.
9493 * This function can be called with or without lock.
9494 **/
9495void
9496lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
9497{
9498 uint32_t *src = srcp;
9499 uint32_t *dest = destp;
9500 uint32_t ldata;
9501 int i;
9502
9503 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
9504 ldata = *src;
9505 ldata = be32_to_cpu(ldata);
9506 *dest = ldata;
9507 src++;
9508 dest++;
9509 }
9510}
9511
9512/**
James Smart3621a712009-04-06 18:47:14 -04009513 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04009514 * @phba: Pointer to HBA context object.
9515 * @pring: Pointer to driver SLI ring object.
9516 * @mp: Pointer to driver buffer object.
9517 *
9518 * This function is called with no lock held.
9519 * It always return zero after adding the buffer to the postbufq
9520 * buffer list.
9521 **/
dea31012005-04-17 16:05:31 -05009522int
James Smart2e0fef82007-06-17 19:56:36 -05009523lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9524 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05009525{
9526 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9527 later */
James Smart2e0fef82007-06-17 19:56:36 -05009528 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009529 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05009530 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05009531 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009532 return 0;
9533}
9534
James Smarte59058c2008-08-24 21:49:00 -04009535/**
James Smart3621a712009-04-06 18:47:14 -04009536 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04009537 * @phba: Pointer to HBA context object.
9538 *
9539 * When HBQ is enabled, buffers are searched based on tags. This function
9540 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9541 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9542 * does not conflict with tags of buffer posted for unsolicited events.
9543 * The function returns the allocated tag. The function is called with
9544 * no locks held.
9545 **/
James Smart76bb24e2007-10-27 13:38:00 -04009546uint32_t
9547lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
9548{
9549 spin_lock_irq(&phba->hbalock);
9550 phba->buffer_tag_count++;
9551 /*
9552 * Always set the QUE_BUFTAG_BIT to distiguish between
9553 * a tag assigned by HBQ.
9554 */
9555 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
9556 spin_unlock_irq(&phba->hbalock);
9557 return phba->buffer_tag_count;
9558}
9559
James Smarte59058c2008-08-24 21:49:00 -04009560/**
James Smart3621a712009-04-06 18:47:14 -04009561 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04009562 * @phba: Pointer to HBA context object.
9563 * @pring: Pointer to driver SLI ring object.
9564 * @tag: Buffer tag.
9565 *
9566 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9567 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9568 * iocb is posted to the response ring with the tag of the buffer.
9569 * This function searches the pring->postbufq list using the tag
9570 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9571 * iocb. If the buffer is found then lpfc_dmabuf object of the
9572 * buffer is returned to the caller else NULL is returned.
9573 * This function is called with no lock held.
9574 **/
James Smart76bb24e2007-10-27 13:38:00 -04009575struct lpfc_dmabuf *
9576lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9577 uint32_t tag)
9578{
9579 struct lpfc_dmabuf *mp, *next_mp;
9580 struct list_head *slp = &pring->postbufq;
9581
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009582 /* Search postbufq, from the beginning, looking for a match on tag */
James Smart76bb24e2007-10-27 13:38:00 -04009583 spin_lock_irq(&phba->hbalock);
9584 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9585 if (mp->buffer_tag == tag) {
9586 list_del_init(&mp->list);
9587 pring->postbufq_cnt--;
9588 spin_unlock_irq(&phba->hbalock);
9589 return mp;
9590 }
9591 }
9592
9593 spin_unlock_irq(&phba->hbalock);
9594 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04009595 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04009596 "ring %d Data x%lx x%p x%p x%x\n",
9597 pring->ringno, (unsigned long) tag,
9598 slp->next, slp->prev, pring->postbufq_cnt);
9599
9600 return NULL;
9601}
dea31012005-04-17 16:05:31 -05009602
James Smarte59058c2008-08-24 21:49:00 -04009603/**
James Smart3621a712009-04-06 18:47:14 -04009604 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04009605 * @phba: Pointer to HBA context object.
9606 * @pring: Pointer to driver SLI ring object.
9607 * @phys: DMA address of the buffer.
9608 *
9609 * This function searches the buffer list using the dma_address
9610 * of unsolicited event to find the driver's lpfc_dmabuf object
9611 * corresponding to the dma_address. The function returns the
9612 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9613 * This function is called by the ct and els unsolicited event
9614 * handlers to get the buffer associated with the unsolicited
9615 * event.
9616 *
9617 * This function is called with no lock held.
9618 **/
dea31012005-04-17 16:05:31 -05009619struct lpfc_dmabuf *
9620lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9621 dma_addr_t phys)
9622{
9623 struct lpfc_dmabuf *mp, *next_mp;
9624 struct list_head *slp = &pring->postbufq;
9625
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009626 /* Search postbufq, from the beginning, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05009627 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009628 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9629 if (mp->phys == phys) {
9630 list_del_init(&mp->list);
9631 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05009632 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009633 return mp;
9634 }
9635 }
9636
James Smart2e0fef82007-06-17 19:56:36 -05009637 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009638 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04009639 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05009640 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04009641 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05009642 slp->next, slp->prev, pring->postbufq_cnt);
9643 return NULL;
9644}
9645
James Smarte59058c2008-08-24 21:49:00 -04009646/**
James Smart3621a712009-04-06 18:47:14 -04009647 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04009648 * @phba: Pointer to HBA context object.
9649 * @cmdiocb: Pointer to driver command iocb object.
9650 * @rspiocb: Pointer to driver response iocb object.
9651 *
9652 * This function is the completion handler for the abort iocbs for
9653 * ELS commands. This function is called from the ELS ring event
9654 * handler with no lock held. This function frees memory resources
9655 * associated with the abort iocb.
9656 **/
dea31012005-04-17 16:05:31 -05009657static void
James Smart2e0fef82007-06-17 19:56:36 -05009658lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9659 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05009660{
James Smart2e0fef82007-06-17 19:56:36 -05009661 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04009662 uint16_t abort_iotag, abort_context;
James Smartff78d8f2011-12-13 13:21:35 -05009663 struct lpfc_iocbq *abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04009664
9665 if (irsp->ulpStatus) {
James Smartff78d8f2011-12-13 13:21:35 -05009666
9667 /*
9668 * Assume that the port already completed and returned, or
9669 * will return the iocb. Just Log the message.
9670 */
James Smart2680eea2007-04-25 09:52:55 -04009671 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9672 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9673
James Smart2e0fef82007-06-17 19:56:36 -05009674 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -04009675 if (phba->sli_rev < LPFC_SLI_REV4) {
9676 if (abort_iotag != 0 &&
9677 abort_iotag <= phba->sli.last_iotag)
9678 abort_iocb =
9679 phba->sli.iocbq_lookup[abort_iotag];
9680 } else
9681 /* For sli4 the abort_tag is the XRI,
9682 * so the abort routine puts the iotag of the iocb
9683 * being aborted in the context field of the abort
9684 * IOCB.
9685 */
9686 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -04009687
James Smart2a9bf3d2010-06-07 15:24:45 -04009688 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9689 "0327 Cannot abort els iocb %p "
9690 "with tag %x context %x, abort status %x, "
9691 "abort code %x\n",
9692 abort_iocb, abort_iotag, abort_context,
9693 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart2680eea2007-04-25 09:52:55 -04009694
James Smartff78d8f2011-12-13 13:21:35 -05009695 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04009696 }
James Bottomley604a3e32005-10-29 10:28:33 -05009697 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05009698 return;
9699}
9700
James Smarte59058c2008-08-24 21:49:00 -04009701/**
James Smart3621a712009-04-06 18:47:14 -04009702 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04009703 * @phba: Pointer to HBA context object.
9704 * @cmdiocb: Pointer to driver command iocb object.
9705 * @rspiocb: Pointer to driver response iocb object.
9706 *
9707 * The function is called from SLI ring event handler with no
9708 * lock held. This function is the completion handler for ELS commands
9709 * which are aborted. The function frees memory resources used for
9710 * the aborted ELS commands.
9711 **/
James Smart92d7f7b2007-06-17 19:56:38 -05009712static void
9713lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9714 struct lpfc_iocbq *rspiocb)
9715{
9716 IOCB_t *irsp = &rspiocb->iocb;
9717
9718 /* ELS cmd tag <ulpIoTag> completes */
9719 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04009720 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05009721 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04009722 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05009723 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05009724 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9725 lpfc_ct_free_iocb(phba, cmdiocb);
9726 else
9727 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05009728 return;
9729}
9730
James Smarte59058c2008-08-24 21:49:00 -04009731/**
James Smart5af5eee2010-10-22 11:06:38 -04009732 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04009733 * @phba: Pointer to HBA context object.
9734 * @pring: Pointer to driver SLI ring object.
9735 * @cmdiocb: Pointer to driver command iocb object.
9736 *
James Smart5af5eee2010-10-22 11:06:38 -04009737 * This function issues an abort iocb for the provided command iocb down to
9738 * the port. Other than the case the outstanding command iocb is an abort
9739 * request, this function issues abort out unconditionally. This function is
9740 * called with hbalock held. The function returns 0 when it fails due to
9741 * memory allocation failure or when the command iocb is an abort request.
James Smarte59058c2008-08-24 21:49:00 -04009742 **/
James Smart5af5eee2010-10-22 11:06:38 -04009743static int
9744lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05009745 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05009746{
James Smart2e0fef82007-06-17 19:56:36 -05009747 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009748 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05009749 IOCB_t *icmd = NULL;
9750 IOCB_t *iabt = NULL;
James Smart9bd2bff52014-09-03 12:57:30 -04009751 int ring_number;
James Smart5af5eee2010-10-22 11:06:38 -04009752 int retval;
James Smart7e56aa22012-08-03 12:35:34 -04009753 unsigned long iflags;
James Smart07951072007-04-25 09:51:38 -04009754
James Smart92d7f7b2007-06-17 19:56:38 -05009755 /*
9756 * There are certain command types we don't want to abort. And we
9757 * don't want to abort commands that are already in the process of
9758 * being aborted.
James Smart07951072007-04-25 09:51:38 -04009759 */
9760 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05009761 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05009762 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9763 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04009764 return 0;
9765
dea31012005-04-17 16:05:31 -05009766 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05009767 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05009768 if (abtsiocbp == NULL)
9769 return 0;
dea31012005-04-17 16:05:31 -05009770
James Smart07951072007-04-25 09:51:38 -04009771 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -05009772 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -04009773 */
9774 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9775
dea31012005-04-17 16:05:31 -05009776 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04009777 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9778 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -04009779 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04009780 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -04009781 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9782 }
James Smartda0436e2009-05-22 14:51:39 -04009783 else
9784 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05009785 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04009786 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05009787
James Smart5ffc2662009-11-18 15:39:44 -05009788 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9789 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05009790 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9791 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -04009792 if (cmdiocb->iocb_flag & LPFC_IO_FOF)
9793 abtsiocbp->iocb_flag |= LPFC_IO_FOF;
James Smart5ffc2662009-11-18 15:39:44 -05009794
James Smart2e0fef82007-06-17 19:56:36 -05009795 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04009796 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9797 else
9798 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9799
9800 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04009801
James Smarte8b62012007-08-02 11:10:09 -04009802 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9803 "0339 Abort xri x%x, original iotag x%x, "
9804 "abort cmd iotag x%x\n",
James Smart2a9bf3d2010-06-07 15:24:45 -04009805 iabt->un.acxri.abortIoTag,
James Smarte8b62012007-08-02 11:10:09 -04009806 iabt->un.acxri.abortContextTag,
James Smart2a9bf3d2010-06-07 15:24:45 -04009807 abtsiocbp->iotag);
James Smart7e56aa22012-08-03 12:35:34 -04009808
9809 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smart9bd2bff52014-09-03 12:57:30 -04009810 ring_number =
9811 lpfc_sli_calc_ring(phba, pring->ringno, abtsiocbp);
9812 if (unlikely(ring_number == LPFC_HBA_ERROR))
9813 return 0;
9814 pring = &phba->sli.ring[ring_number];
James Smart7e56aa22012-08-03 12:35:34 -04009815 /* Note: both hbalock and ring_lock need to be set here */
9816 spin_lock_irqsave(&pring->ring_lock, iflags);
9817 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9818 abtsiocbp, 0);
9819 spin_unlock_irqrestore(&pring->ring_lock, iflags);
9820 } else {
9821 retval = __lpfc_sli_issue_iocb(phba, pring->ringno,
9822 abtsiocbp, 0);
9823 }
James Smart07951072007-04-25 09:51:38 -04009824
James Smartd7c255b2008-08-24 21:50:00 -04009825 if (retval)
9826 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart5af5eee2010-10-22 11:06:38 -04009827
9828 /*
9829 * Caller to this routine should check for IOCB_ERROR
9830 * and handle it properly. This routine no longer removes
9831 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9832 */
9833 return retval;
9834}
9835
9836/**
9837 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9838 * @phba: Pointer to HBA context object.
9839 * @pring: Pointer to driver SLI ring object.
9840 * @cmdiocb: Pointer to driver command iocb object.
9841 *
9842 * This function issues an abort iocb for the provided command iocb. In case
9843 * of unloading, the abort iocb will not be issued to commands on the ELS
9844 * ring. Instead, the callback function shall be changed to those commands
9845 * so that nothing happens when them finishes. This function is called with
9846 * hbalock held. The function returns 0 when the command iocb is an abort
9847 * request.
9848 **/
9849int
9850lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9851 struct lpfc_iocbq *cmdiocb)
9852{
9853 struct lpfc_vport *vport = cmdiocb->vport;
9854 int retval = IOCB_ERROR;
9855 IOCB_t *icmd = NULL;
9856
9857 /*
9858 * There are certain command types we don't want to abort. And we
9859 * don't want to abort commands that are already in the process of
9860 * being aborted.
9861 */
9862 icmd = &cmdiocb->iocb;
9863 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9864 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9865 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9866 return 0;
9867
9868 /*
9869 * If we're unloading, don't abort iocb on the ELS ring, but change
9870 * the callback so that nothing happens when it finishes.
9871 */
9872 if ((vport->load_flag & FC_UNLOADING) &&
9873 (pring->ringno == LPFC_ELS_RING)) {
9874 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9875 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9876 else
9877 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9878 goto abort_iotag_exit;
9879 }
9880
9881 /* Now, we try to issue the abort to the cmdiocb out */
9882 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9883
James Smart07951072007-04-25 09:51:38 -04009884abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05009885 /*
9886 * Caller to this routine should check for IOCB_ERROR
9887 * and handle it properly. This routine no longer removes
9888 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04009889 */
James Smart2e0fef82007-06-17 19:56:36 -05009890 return retval;
dea31012005-04-17 16:05:31 -05009891}
9892
James Smarte59058c2008-08-24 21:49:00 -04009893/**
James Smart5af5eee2010-10-22 11:06:38 -04009894 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9895 * @phba: pointer to lpfc HBA data structure.
9896 *
9897 * This routine will abort all pending and outstanding iocbs to an HBA.
9898 **/
9899void
9900lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9901{
9902 struct lpfc_sli *psli = &phba->sli;
9903 struct lpfc_sli_ring *pring;
9904 int i;
9905
9906 for (i = 0; i < psli->num_rings; i++) {
9907 pring = &psli->ring[i];
James Smartdb55fba2014-04-04 13:52:02 -04009908 lpfc_sli_abort_iocb_ring(phba, pring);
James Smart5af5eee2010-10-22 11:06:38 -04009909 }
9910}
9911
9912/**
James Smart3621a712009-04-06 18:47:14 -04009913 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04009914 * @iocbq: Pointer to driver iocb object.
9915 * @vport: Pointer to driver virtual port object.
9916 * @tgt_id: SCSI ID of the target.
9917 * @lun_id: LUN ID of the scsi device.
9918 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9919 *
James Smart3621a712009-04-06 18:47:14 -04009920 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04009921 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9922 * 0 if the filtering criteria is met for the given iocb and will return
9923 * 1 if the filtering criteria is not met.
9924 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9925 * given iocb is for the SCSI device specified by vport, tgt_id and
9926 * lun_id parameter.
9927 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9928 * given iocb is for the SCSI target specified by vport and tgt_id
9929 * parameters.
9930 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9931 * given iocb is for the SCSI host associated with the given vport.
9932 * This function is called with no locks held.
9933 **/
dea31012005-04-17 16:05:31 -05009934static int
James Smart51ef4c22007-08-02 11:10:31 -04009935lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9936 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009937 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05009938{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009939 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05009940 int rc = 1;
9941
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009942 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9943 return rc;
9944
James Smart51ef4c22007-08-02 11:10:31 -04009945 if (iocbq->vport != vport)
9946 return rc;
9947
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009948 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009949
James Smart495a7142008-06-14 22:52:59 -04009950 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05009951 return rc;
9952
9953 switch (ctx_cmd) {
9954 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04009955 if ((lpfc_cmd->rdata->pnode) &&
9956 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9957 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05009958 rc = 0;
9959 break;
9960 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04009961 if ((lpfc_cmd->rdata->pnode) &&
9962 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05009963 rc = 0;
9964 break;
dea31012005-04-17 16:05:31 -05009965 case LPFC_CTX_HOST:
9966 rc = 0;
9967 break;
9968 default:
9969 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07009970 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05009971 break;
9972 }
9973
9974 return rc;
9975}
9976
James Smarte59058c2008-08-24 21:49:00 -04009977/**
James Smart3621a712009-04-06 18:47:14 -04009978 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04009979 * @vport: Pointer to virtual port.
9980 * @tgt_id: SCSI ID of the target.
9981 * @lun_id: LUN ID of the scsi device.
9982 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9983 *
9984 * This function returns number of FCP commands pending for the vport.
9985 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9986 * commands pending on the vport associated with SCSI device specified
9987 * by tgt_id and lun_id parameters.
9988 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9989 * commands pending on the vport associated with SCSI target specified
9990 * by tgt_id parameter.
9991 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9992 * commands pending on the vport.
9993 * This function returns the number of iocbs which satisfy the filter.
9994 * This function is called without any lock held.
9995 **/
dea31012005-04-17 16:05:31 -05009996int
James Smart51ef4c22007-08-02 11:10:31 -04009997lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9998 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05009999{
James Smart51ef4c22007-08-02 11:10:31 -040010000 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010001 struct lpfc_iocbq *iocbq;
10002 int sum, i;
dea31012005-04-17 16:05:31 -050010003
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010004 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
10005 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -050010006
James Smart51ef4c22007-08-02 11:10:31 -040010007 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
10008 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010009 sum++;
dea31012005-04-17 16:05:31 -050010010 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010011
dea31012005-04-17 16:05:31 -050010012 return sum;
10013}
10014
James Smarte59058c2008-08-24 21:49:00 -040010015/**
James Smart3621a712009-04-06 18:47:14 -040010016 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -040010017 * @phba: Pointer to HBA context object
10018 * @cmdiocb: Pointer to command iocb object.
10019 * @rspiocb: Pointer to response iocb object.
10020 *
10021 * This function is called when an aborted FCP iocb completes. This
10022 * function is called by the ring event handler with no lock held.
10023 * This function frees the iocb.
10024 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010025void
James Smart2e0fef82007-06-17 19:56:36 -050010026lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
10027 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010028{
James Smartcb69f7d2011-12-13 13:21:57 -050010029 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smart8e668af2013-05-31 17:04:28 -040010030 "3096 ABORT_XRI_CN completing on rpi x%x "
James Smartcb69f7d2011-12-13 13:21:57 -050010031 "original iotag x%x, abort cmd iotag x%x "
10032 "status 0x%x, reason 0x%x\n",
10033 cmdiocb->iocb.un.acxri.abortContextTag,
10034 cmdiocb->iocb.un.acxri.abortIoTag,
10035 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
10036 rspiocb->iocb.un.ulpWord[4]);
James Bottomley604a3e32005-10-29 10:28:33 -050010037 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010038 return;
10039}
10040
James Smarte59058c2008-08-24 21:49:00 -040010041/**
James Smart3621a712009-04-06 18:47:14 -040010042 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -040010043 * @vport: Pointer to virtual port.
10044 * @pring: Pointer to driver SLI ring object.
10045 * @tgt_id: SCSI ID of the target.
10046 * @lun_id: LUN ID of the scsi device.
10047 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10048 *
10049 * This function sends an abort command for every SCSI command
10050 * associated with the given virtual port pending on the ring
10051 * filtered by lpfc_sli_validate_fcp_iocb function.
10052 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10053 * FCP iocbs associated with lun specified by tgt_id and lun_id
10054 * parameters
10055 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10056 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10057 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10058 * FCP iocbs associated with virtual port.
10059 * This function returns number of iocbs it failed to abort.
10060 * This function is called with no locks held.
10061 **/
dea31012005-04-17 16:05:31 -050010062int
James Smart51ef4c22007-08-02 11:10:31 -040010063lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10064 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -050010065{
James Smart51ef4c22007-08-02 11:10:31 -040010066 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010067 struct lpfc_iocbq *iocbq;
10068 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -050010069 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -050010070 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010071 int i;
dea31012005-04-17 16:05:31 -050010072
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010073 for (i = 1; i <= phba->sli.last_iotag; i++) {
10074 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -050010075
James Smart51ef4c22007-08-02 11:10:31 -040010076 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -050010077 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -050010078 continue;
10079
James Smartafbd8d82013-09-06 12:22:13 -040010080 /*
10081 * If the iocbq is already being aborted, don't take a second
10082 * action, but do count it.
10083 */
10084 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10085 continue;
10086
dea31012005-04-17 16:05:31 -050010087 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010088 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -050010089 if (abtsiocb == NULL) {
10090 errcnt++;
10091 continue;
10092 }
dea31012005-04-17 16:05:31 -050010093
James Smartafbd8d82013-09-06 12:22:13 -040010094 /* indicate the IO is being aborted by the driver. */
10095 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10096
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -040010097 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -050010098 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10099 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -040010100 if (phba->sli_rev == LPFC_SLI_REV4)
10101 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
10102 else
10103 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -050010104 abtsiocb->iocb.ulpLe = 1;
10105 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smartafbd8d82013-09-06 12:22:13 -040010106 abtsiocb->vport = vport;
dea31012005-04-17 16:05:31 -050010107
James Smart5ffc2662009-11-18 15:39:44 -050010108 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10109 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -050010110 if (iocbq->iocb_flag & LPFC_IO_FCP)
10111 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -040010112 if (iocbq->iocb_flag & LPFC_IO_FOF)
10113 abtsiocb->iocb_flag |= LPFC_IO_FOF;
James Smart5ffc2662009-11-18 15:39:44 -050010114
James Smart2e0fef82007-06-17 19:56:36 -050010115 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -050010116 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10117 else
10118 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10119
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -040010120 /* Setup callback routine and issue the command. */
10121 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -040010122 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
10123 abtsiocb, 0);
dea31012005-04-17 16:05:31 -050010124 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -050010125 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -050010126 errcnt++;
10127 continue;
10128 }
10129 }
10130
10131 return errcnt;
10132}
10133
James Smarte59058c2008-08-24 21:49:00 -040010134/**
James Smart98912dda2014-04-04 13:52:31 -040010135 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10136 * @vport: Pointer to virtual port.
10137 * @pring: Pointer to driver SLI ring object.
10138 * @tgt_id: SCSI ID of the target.
10139 * @lun_id: LUN ID of the scsi device.
10140 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10141 *
10142 * This function sends an abort command for every SCSI command
10143 * associated with the given virtual port pending on the ring
10144 * filtered by lpfc_sli_validate_fcp_iocb function.
10145 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10146 * FCP iocbs associated with lun specified by tgt_id and lun_id
10147 * parameters
10148 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10149 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10150 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10151 * FCP iocbs associated with virtual port.
10152 * This function returns number of iocbs it aborted .
10153 * This function is called with no locks held right after a taskmgmt
10154 * command is sent.
10155 **/
10156int
10157lpfc_sli_abort_taskmgmt(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
10158 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd cmd)
10159{
10160 struct lpfc_hba *phba = vport->phba;
James Smart8c50d252014-09-03 12:58:16 -040010161 struct lpfc_scsi_buf *lpfc_cmd;
James Smart98912dda2014-04-04 13:52:31 -040010162 struct lpfc_iocbq *abtsiocbq;
James Smart8c50d252014-09-03 12:58:16 -040010163 struct lpfc_nodelist *ndlp;
James Smart98912dda2014-04-04 13:52:31 -040010164 struct lpfc_iocbq *iocbq;
10165 IOCB_t *icmd;
10166 int sum, i, ret_val;
10167 unsigned long iflags;
10168 struct lpfc_sli_ring *pring_s4;
10169 uint32_t ring_number;
10170
10171 spin_lock_irq(&phba->hbalock);
10172
10173 /* all I/Os are in process of being flushed */
10174 if (phba->hba_flag & HBA_FCP_IOQ_FLUSH) {
10175 spin_unlock_irq(&phba->hbalock);
10176 return 0;
10177 }
10178 sum = 0;
10179
10180 for (i = 1; i <= phba->sli.last_iotag; i++) {
10181 iocbq = phba->sli.iocbq_lookup[i];
10182
10183 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
10184 cmd) != 0)
10185 continue;
10186
10187 /*
10188 * If the iocbq is already being aborted, don't take a second
10189 * action, but do count it.
10190 */
10191 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED)
10192 continue;
10193
10194 /* issue ABTS for this IOCB based on iotag */
10195 abtsiocbq = __lpfc_sli_get_iocbq(phba);
10196 if (abtsiocbq == NULL)
10197 continue;
10198
10199 icmd = &iocbq->iocb;
10200 abtsiocbq->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
10201 abtsiocbq->iocb.un.acxri.abortContextTag = icmd->ulpContext;
10202 if (phba->sli_rev == LPFC_SLI_REV4)
10203 abtsiocbq->iocb.un.acxri.abortIoTag =
10204 iocbq->sli4_xritag;
10205 else
10206 abtsiocbq->iocb.un.acxri.abortIoTag = icmd->ulpIoTag;
10207 abtsiocbq->iocb.ulpLe = 1;
10208 abtsiocbq->iocb.ulpClass = icmd->ulpClass;
10209 abtsiocbq->vport = vport;
10210
10211 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10212 abtsiocbq->fcp_wqidx = iocbq->fcp_wqidx;
10213 if (iocbq->iocb_flag & LPFC_IO_FCP)
10214 abtsiocbq->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart9bd2bff52014-09-03 12:57:30 -040010215 if (iocbq->iocb_flag & LPFC_IO_FOF)
10216 abtsiocbq->iocb_flag |= LPFC_IO_FOF;
James Smart98912dda2014-04-04 13:52:31 -040010217
James Smart8c50d252014-09-03 12:58:16 -040010218 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
10219 ndlp = lpfc_cmd->rdata->pnode;
10220
10221 if (lpfc_is_link_up(phba) &&
10222 (ndlp && ndlp->nlp_state == NLP_STE_MAPPED_NODE))
James Smart98912dda2014-04-04 13:52:31 -040010223 abtsiocbq->iocb.ulpCommand = CMD_ABORT_XRI_CN;
10224 else
10225 abtsiocbq->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
10226
10227 /* Setup callback routine and issue the command. */
10228 abtsiocbq->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
10229
10230 /*
10231 * Indicate the IO is being aborted by the driver and set
10232 * the caller's flag into the aborted IO.
10233 */
10234 iocbq->iocb_flag |= LPFC_DRIVER_ABORTED;
10235
10236 if (phba->sli_rev == LPFC_SLI_REV4) {
10237 ring_number = MAX_SLI3_CONFIGURED_RINGS +
10238 iocbq->fcp_wqidx;
10239 pring_s4 = &phba->sli.ring[ring_number];
10240 /* Note: both hbalock and ring_lock must be set here */
10241 spin_lock_irqsave(&pring_s4->ring_lock, iflags);
10242 ret_val = __lpfc_sli_issue_iocb(phba, pring_s4->ringno,
10243 abtsiocbq, 0);
10244 spin_unlock_irqrestore(&pring_s4->ring_lock, iflags);
10245 } else {
10246 ret_val = __lpfc_sli_issue_iocb(phba, pring->ringno,
10247 abtsiocbq, 0);
10248 }
10249
10250
10251 if (ret_val == IOCB_ERROR)
10252 __lpfc_sli_release_iocbq(phba, abtsiocbq);
10253 else
10254 sum++;
10255 }
10256 spin_unlock_irq(&phba->hbalock);
10257 return sum;
10258}
10259
10260/**
James Smart3621a712009-04-06 18:47:14 -040010261 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -040010262 * @phba: Pointer to HBA context object.
10263 * @cmdiocbq: Pointer to command iocb.
10264 * @rspiocbq: Pointer to response iocb.
10265 *
10266 * This function is the completion handler for iocbs issued using
10267 * lpfc_sli_issue_iocb_wait function. This function is called by the
10268 * ring event handler function without any lock held. This function
10269 * can be called from both worker thread context and interrupt
10270 * context. This function also can be called from other thread which
10271 * cleans up the SLI layer objects.
10272 * This function copy the contents of the response iocb to the
10273 * response iocb memory object provided by the caller of
10274 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10275 * sleeps for the iocb completion.
10276 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010277static void
10278lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
10279 struct lpfc_iocbq *cmdiocbq,
10280 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -050010281{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010282 wait_queue_head_t *pdone_q;
10283 unsigned long iflags;
James Smart0f65ff62010-02-26 14:14:23 -050010284 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -050010285
James Smart2e0fef82007-06-17 19:56:36 -050010286 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart5a0916b2013-07-15 18:31:42 -040010287 if (cmdiocbq->iocb_flag & LPFC_IO_WAKE_TMO) {
10288
10289 /*
10290 * A time out has occurred for the iocb. If a time out
10291 * completion handler has been supplied, call it. Otherwise,
10292 * just free the iocbq.
10293 */
10294
10295 spin_unlock_irqrestore(&phba->hbalock, iflags);
10296 cmdiocbq->iocb_cmpl = cmdiocbq->wait_iocb_cmpl;
10297 cmdiocbq->wait_iocb_cmpl = NULL;
10298 if (cmdiocbq->iocb_cmpl)
10299 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, NULL);
10300 else
10301 lpfc_sli_release_iocbq(phba, cmdiocbq);
10302 return;
10303 }
10304
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010305 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
10306 if (cmdiocbq->context2 && rspiocbq)
10307 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
10308 &rspiocbq->iocb, sizeof(IOCB_t));
10309
James Smart0f65ff62010-02-26 14:14:23 -050010310 /* Set the exchange busy flag for task management commands */
10311 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
10312 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
10313 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
10314 cur_iocbq);
10315 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
10316 }
10317
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010318 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010319 if (pdone_q)
10320 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -050010321 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -050010322 return;
10323}
10324
James Smarte59058c2008-08-24 21:49:00 -040010325/**
James Smartd11e31d2009-06-10 17:23:06 -040010326 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10327 * @phba: Pointer to HBA context object..
10328 * @piocbq: Pointer to command iocb.
10329 * @flag: Flag to test.
10330 *
10331 * This routine grabs the hbalock and then test the iocb_flag to
10332 * see if the passed in flag is set.
10333 * Returns:
10334 * 1 if flag is set.
10335 * 0 if flag is not set.
10336 **/
10337static int
10338lpfc_chk_iocb_flg(struct lpfc_hba *phba,
10339 struct lpfc_iocbq *piocbq, uint32_t flag)
10340{
10341 unsigned long iflags;
10342 int ret;
10343
10344 spin_lock_irqsave(&phba->hbalock, iflags);
10345 ret = piocbq->iocb_flag & flag;
10346 spin_unlock_irqrestore(&phba->hbalock, iflags);
10347 return ret;
10348
10349}
10350
10351/**
James Smart3621a712009-04-06 18:47:14 -040010352 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -040010353 * @phba: Pointer to HBA context object..
10354 * @pring: Pointer to sli ring.
10355 * @piocb: Pointer to command iocb.
10356 * @prspiocbq: Pointer to response iocb.
10357 * @timeout: Timeout in number of seconds.
10358 *
10359 * This function issues the iocb to firmware and waits for the
James Smart5a0916b2013-07-15 18:31:42 -040010360 * iocb to complete. The iocb_cmpl field of the shall be used
10361 * to handle iocbs which time out. If the field is NULL, the
10362 * function shall free the iocbq structure. If more clean up is
10363 * needed, the caller is expected to provide a completion function
10364 * that will provide the needed clean up. If the iocb command is
10365 * not completed within timeout seconds, the function will either
10366 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10367 * completion function set in the iocb_cmpl field and then return
10368 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10369 * resources if this function returns IOCB_TIMEDOUT.
James Smarte59058c2008-08-24 21:49:00 -040010370 * The function waits for the iocb completion using an
10371 * non-interruptible wait.
10372 * This function will sleep while waiting for iocb completion.
10373 * So, this function should not be called from any context which
10374 * does not allow sleeping. Due to the same reason, this function
10375 * cannot be called with interrupt disabled.
10376 * This function assumes that the iocb completions occur while
10377 * this function sleep. So, this function cannot be called from
10378 * the thread which process iocb completion for this ring.
10379 * This function clears the iocb_flag of the iocb object before
10380 * issuing the iocb and the iocb completion handler sets this
10381 * flag and wakes this thread when the iocb completes.
10382 * The contents of the response iocb will be copied to prspiocbq
10383 * by the completion handler when the command completes.
10384 * This function returns IOCB_SUCCESS when success.
10385 * This function is called with no lock held.
10386 **/
dea31012005-04-17 16:05:31 -050010387int
James Smart2e0fef82007-06-17 19:56:36 -050010388lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -040010389 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -050010390 struct lpfc_iocbq *piocb,
10391 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010392 uint32_t timeout)
dea31012005-04-17 16:05:31 -050010393{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -080010394 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010395 long timeleft, timeout_req = 0;
10396 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050010397 uint32_t creg_val;
James Smart0e9bb8d2013-03-01 16:35:12 -050010398 struct lpfc_iocbq *iocb;
10399 int txq_cnt = 0;
10400 int txcmplq_cnt = 0;
James Smart2a9bf3d2010-06-07 15:24:45 -040010401 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart5a0916b2013-07-15 18:31:42 -040010402 unsigned long iflags;
10403 bool iocb_completed = true;
10404
dea31012005-04-17 16:05:31 -050010405 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010406 * If the caller has provided a response iocbq buffer, then context2
10407 * is NULL or its an error.
dea31012005-04-17 16:05:31 -050010408 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010409 if (prspiocbq) {
10410 if (piocb->context2)
10411 return IOCB_ERROR;
10412 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -050010413 }
10414
James Smart5a0916b2013-07-15 18:31:42 -040010415 piocb->wait_iocb_cmpl = piocb->iocb_cmpl;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010416 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
10417 piocb->context_un.wait_queue = &done_q;
James Smart5a0916b2013-07-15 18:31:42 -040010418 piocb->iocb_flag &= ~(LPFC_IO_WAKE | LPFC_IO_WAKE_TMO);
dea31012005-04-17 16:05:31 -050010419
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050010420 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -050010421 if (lpfc_readl(phba->HCregaddr, &creg_val))
10422 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050010423 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
10424 writel(creg_val, phba->HCregaddr);
10425 readl(phba->HCregaddr); /* flush */
10426 }
10427
James Smart2a9bf3d2010-06-07 15:24:45 -040010428 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
10429 SLI_IOCB_RET_IOCB);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010430 if (retval == IOCB_SUCCESS) {
James Smart256ec0d2013-04-17 20:14:58 -040010431 timeout_req = msecs_to_jiffies(timeout * 1000);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010432 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -040010433 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010434 timeout_req);
James Smart5a0916b2013-07-15 18:31:42 -040010435 spin_lock_irqsave(&phba->hbalock, iflags);
10436 if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
dea31012005-04-17 16:05:31 -050010437
James Smart5a0916b2013-07-15 18:31:42 -040010438 /*
10439 * IOCB timed out. Inform the wake iocb wait
10440 * completion function and set local status
10441 */
10442
10443 iocb_completed = false;
10444 piocb->iocb_flag |= LPFC_IO_WAKE_TMO;
10445 }
10446 spin_unlock_irqrestore(&phba->hbalock, iflags);
10447 if (iocb_completed) {
James Smart7054a602007-04-25 09:52:34 -040010448 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040010449 "0331 IOCB wake signaled\n");
James Smart53151bb2013-10-10 12:24:07 -040010450 /* Note: we are not indicating if the IOCB has a success
10451 * status or not - that's for the caller to check.
10452 * IOCB_SUCCESS means just that the command was sent and
10453 * completed. Not that it completed successfully.
10454 * */
James Smart7054a602007-04-25 09:52:34 -040010455 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010456 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040010457 "0338 IOCB wait timeout error - no "
10458 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010459 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -040010460 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010461 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040010462 "0330 IOCB wake NOT set, "
10463 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010464 timeout, (timeleft / jiffies));
10465 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -050010466 }
James Smart2a9bf3d2010-06-07 15:24:45 -040010467 } else if (retval == IOCB_BUSY) {
James Smart0e9bb8d2013-03-01 16:35:12 -050010468 if (phba->cfg_log_verbose & LOG_SLI) {
10469 list_for_each_entry(iocb, &pring->txq, list) {
10470 txq_cnt++;
10471 }
10472 list_for_each_entry(iocb, &pring->txcmplq, list) {
10473 txcmplq_cnt++;
10474 }
10475 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10476 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10477 phba->iocb_cnt, txq_cnt, txcmplq_cnt);
10478 }
James Smart2a9bf3d2010-06-07 15:24:45 -040010479 return retval;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010480 } else {
10481 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -040010482 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040010483 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010484 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -050010485 }
10486
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050010487 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -050010488 if (lpfc_readl(phba->HCregaddr, &creg_val))
10489 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -050010490 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
10491 writel(creg_val, phba->HCregaddr);
10492 readl(phba->HCregaddr); /* flush */
10493 }
10494
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010495 if (prspiocbq)
10496 piocb->context2 = NULL;
10497
10498 piocb->context_un.wait_queue = NULL;
10499 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -050010500 return retval;
10501}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -040010502
James Smarte59058c2008-08-24 21:49:00 -040010503/**
James Smart3621a712009-04-06 18:47:14 -040010504 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -040010505 * @phba: Pointer to HBA context object.
10506 * @pmboxq: Pointer to driver mailbox object.
10507 * @timeout: Timeout in number of seconds.
10508 *
10509 * This function issues the mailbox to firmware and waits for the
10510 * mailbox command to complete. If the mailbox command is not
10511 * completed within timeout seconds, it returns MBX_TIMEOUT.
10512 * The function waits for the mailbox completion using an
10513 * interruptible wait. If the thread is woken up due to a
10514 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10515 * should not free the mailbox resources, if this function returns
10516 * MBX_TIMEOUT.
10517 * This function will sleep while waiting for mailbox completion.
10518 * So, this function should not be called from any context which
10519 * does not allow sleeping. Due to the same reason, this function
10520 * cannot be called with interrupt disabled.
10521 * This function assumes that the mailbox completion occurs while
10522 * this function sleep. So, this function cannot be called from
10523 * the worker thread which processes mailbox completion.
10524 * This function is called in the context of HBA management
10525 * applications.
10526 * This function returns MBX_SUCCESS when successful.
10527 * This function is called with no lock held.
10528 **/
dea31012005-04-17 16:05:31 -050010529int
James Smart2e0fef82007-06-17 19:56:36 -050010530lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -050010531 uint32_t timeout)
10532{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -080010533 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James Smartb230b8a2013-05-31 17:05:27 -040010534 MAILBOX_t *mb = NULL;
dea31012005-04-17 16:05:31 -050010535 int retval;
James Smart858c9f62007-06-17 19:56:39 -050010536 unsigned long flag;
dea31012005-04-17 16:05:31 -050010537
James Smartb230b8a2013-05-31 17:05:27 -040010538 /* The caller might set context1 for extended buffer */
James Smart98c9ea52007-10-27 13:37:33 -040010539 if (pmboxq->context1)
James Smartb230b8a2013-05-31 17:05:27 -040010540 mb = (MAILBOX_t *)pmboxq->context1;
dea31012005-04-17 16:05:31 -050010541
James Smart495a7142008-06-14 22:52:59 -040010542 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -050010543 /* setup wake call as IOCB callback */
10544 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
10545 /* setup context field to pass wait_queue pointer to wake function */
10546 pmboxq->context1 = &done_q;
10547
dea31012005-04-17 16:05:31 -050010548 /* now issue the command */
10549 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
dea31012005-04-17 16:05:31 -050010550 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -040010551 wait_event_interruptible_timeout(done_q,
10552 pmboxq->mbox_flag & LPFC_MBX_WAKE,
James Smart256ec0d2013-04-17 20:14:58 -040010553 msecs_to_jiffies(timeout * 1000));
James Smart7054a602007-04-25 09:52:34 -040010554
James Smart858c9f62007-06-17 19:56:39 -050010555 spin_lock_irqsave(&phba->hbalock, flag);
James Smartb230b8a2013-05-31 17:05:27 -040010556 /* restore the possible extended buffer for free resource */
10557 pmboxq->context1 = (uint8_t *)mb;
James Smart7054a602007-04-25 09:52:34 -040010558 /*
10559 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10560 * else do not free the resources.
10561 */
James Smartd7c47992010-06-08 18:31:54 -040010562 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
dea31012005-04-17 16:05:31 -050010563 retval = MBX_SUCCESS;
James Smartd7c47992010-06-08 18:31:54 -040010564 } else {
James Smart7054a602007-04-25 09:52:34 -040010565 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -050010566 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10567 }
10568 spin_unlock_irqrestore(&phba->hbalock, flag);
James Smartb230b8a2013-05-31 17:05:27 -040010569 } else {
10570 /* restore the possible extended buffer for free resource */
10571 pmboxq->context1 = (uint8_t *)mb;
dea31012005-04-17 16:05:31 -050010572 }
10573
dea31012005-04-17 16:05:31 -050010574 return retval;
10575}
10576
James Smarte59058c2008-08-24 21:49:00 -040010577/**
James Smart3772a992009-05-22 14:50:54 -040010578 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -040010579 * @phba: Pointer to HBA context.
10580 *
James Smart3772a992009-05-22 14:50:54 -040010581 * This function is called to shutdown the driver's mailbox sub-system.
10582 * It first marks the mailbox sub-system is in a block state to prevent
10583 * the asynchronous mailbox command from issued off the pending mailbox
10584 * command queue. If the mailbox command sub-system shutdown is due to
10585 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10586 * the mailbox sub-system flush routine to forcefully bring down the
10587 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10588 * as with offline or HBA function reset), this routine will wait for the
10589 * outstanding mailbox command to complete before invoking the mailbox
10590 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -040010591 **/
James Smart3772a992009-05-22 14:50:54 -040010592void
James Smart618a5232012-06-12 13:54:36 -040010593lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba, int mbx_action)
James Smartb4c02652006-07-06 15:50:43 -040010594{
James Smart3772a992009-05-22 14:50:54 -040010595 struct lpfc_sli *psli = &phba->sli;
James Smart3772a992009-05-22 14:50:54 -040010596 unsigned long timeout;
10597
James Smart618a5232012-06-12 13:54:36 -040010598 if (mbx_action == LPFC_MBX_NO_WAIT) {
10599 /* delay 100ms for port state */
10600 msleep(100);
10601 lpfc_sli_mbox_sys_flush(phba);
10602 return;
10603 }
James Smarta183a152011-10-10 21:32:43 -040010604 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
James Smartd7069f02012-03-01 22:36:29 -050010605
James Smart3772a992009-05-22 14:50:54 -040010606 spin_lock_irq(&phba->hbalock);
10607 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smart3772a992009-05-22 14:50:54 -040010608
10609 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart3772a992009-05-22 14:50:54 -040010610 /* Determine how long we might wait for the active mailbox
10611 * command to be gracefully completed by firmware.
10612 */
James Smarta183a152011-10-10 21:32:43 -040010613 if (phba->sli.mbox_active)
10614 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
10615 phba->sli.mbox_active) *
10616 1000) + jiffies;
10617 spin_unlock_irq(&phba->hbalock);
10618
James Smart3772a992009-05-22 14:50:54 -040010619 while (phba->sli.mbox_active) {
10620 /* Check active mailbox complete status every 2ms */
10621 msleep(2);
10622 if (time_after(jiffies, timeout))
10623 /* Timeout, let the mailbox flush routine to
10624 * forcefully release active mailbox command
10625 */
10626 break;
10627 }
James Smartd7069f02012-03-01 22:36:29 -050010628 } else
10629 spin_unlock_irq(&phba->hbalock);
10630
James Smart3772a992009-05-22 14:50:54 -040010631 lpfc_sli_mbox_sys_flush(phba);
10632}
10633
10634/**
10635 * lpfc_sli_eratt_read - read sli-3 error attention events
10636 * @phba: Pointer to HBA context.
10637 *
10638 * This function is called to read the SLI3 device error attention registers
10639 * for possible error attention events. The caller must hold the hostlock
10640 * with spin_lock_irq().
10641 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010642 * This function returns 1 when there is Error Attention in the Host Attention
James Smart3772a992009-05-22 14:50:54 -040010643 * Register and returns 0 otherwise.
10644 **/
10645static int
10646lpfc_sli_eratt_read(struct lpfc_hba *phba)
10647{
James Smarted957682007-06-17 19:56:37 -050010648 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -040010649
James Smart3772a992009-05-22 14:50:54 -040010650 /* Read chip Host Attention (HA) register */
James Smart9940b972011-03-11 16:06:12 -050010651 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10652 goto unplug_err;
10653
James Smart3772a992009-05-22 14:50:54 -040010654 if (ha_copy & HA_ERATT) {
10655 /* Read host status register to retrieve error event */
James Smart9940b972011-03-11 16:06:12 -050010656 if (lpfc_sli_read_hs(phba))
10657 goto unplug_err;
James Smartb4c02652006-07-06 15:50:43 -040010658
James Smart3772a992009-05-22 14:50:54 -040010659 /* Check if there is a deferred error condition is active */
10660 if ((HS_FFER1 & phba->work_hs) &&
10661 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -040010662 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -040010663 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -040010664 /* Clear all interrupt enable conditions */
10665 writel(0, phba->HCregaddr);
10666 readl(phba->HCregaddr);
10667 }
10668
10669 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -040010670 phba->work_ha |= HA_ERATT;
10671 /* Indicate polling handles this ERATT */
10672 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -040010673 return 1;
James Smartb4c02652006-07-06 15:50:43 -040010674 }
James Smart3772a992009-05-22 14:50:54 -040010675 return 0;
James Smart9940b972011-03-11 16:06:12 -050010676
10677unplug_err:
10678 /* Set the driver HS work bitmap */
10679 phba->work_hs |= UNPLUG_ERR;
10680 /* Set the driver HA work bitmap */
10681 phba->work_ha |= HA_ERATT;
10682 /* Indicate polling handles this ERATT */
10683 phba->hba_flag |= HBA_ERATT_HANDLED;
10684 return 1;
James Smartb4c02652006-07-06 15:50:43 -040010685}
10686
James Smarte59058c2008-08-24 21:49:00 -040010687/**
James Smartda0436e2009-05-22 14:51:39 -040010688 * lpfc_sli4_eratt_read - read sli-4 error attention events
10689 * @phba: Pointer to HBA context.
10690 *
10691 * This function is called to read the SLI4 device error attention registers
10692 * for possible error attention events. The caller must hold the hostlock
10693 * with spin_lock_irq().
10694 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010695 * This function returns 1 when there is Error Attention in the Host Attention
James Smartda0436e2009-05-22 14:51:39 -040010696 * Register and returns 0 otherwise.
10697 **/
10698static int
10699lpfc_sli4_eratt_read(struct lpfc_hba *phba)
10700{
10701 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smart2fcee4b2010-12-15 17:57:46 -050010702 uint32_t if_type, portsmphr;
10703 struct lpfc_register portstat_reg;
James Smartda0436e2009-05-22 14:51:39 -040010704
James Smart2fcee4b2010-12-15 17:57:46 -050010705 /*
10706 * For now, use the SLI4 device internal unrecoverable error
James Smartda0436e2009-05-22 14:51:39 -040010707 * registers for error attention. This can be changed later.
10708 */
James Smart2fcee4b2010-12-15 17:57:46 -050010709 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
10710 switch (if_type) {
10711 case LPFC_SLI_INTF_IF_TYPE_0:
James Smart9940b972011-03-11 16:06:12 -050010712 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
10713 &uerr_sta_lo) ||
10714 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
10715 &uerr_sta_hi)) {
10716 phba->work_hs |= UNPLUG_ERR;
10717 phba->work_ha |= HA_ERATT;
10718 phba->hba_flag |= HBA_ERATT_HANDLED;
10719 return 1;
10720 }
James Smart2fcee4b2010-12-15 17:57:46 -050010721 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
10722 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
10723 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10724 "1423 HBA Unrecoverable error: "
10725 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10726 "ue_mask_lo_reg=0x%x, "
10727 "ue_mask_hi_reg=0x%x\n",
10728 uerr_sta_lo, uerr_sta_hi,
10729 phba->sli4_hba.ue_mask_lo,
10730 phba->sli4_hba.ue_mask_hi);
10731 phba->work_status[0] = uerr_sta_lo;
10732 phba->work_status[1] = uerr_sta_hi;
10733 phba->work_ha |= HA_ERATT;
10734 phba->hba_flag |= HBA_ERATT_HANDLED;
10735 return 1;
10736 }
10737 break;
10738 case LPFC_SLI_INTF_IF_TYPE_2:
James Smart9940b972011-03-11 16:06:12 -050010739 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
10740 &portstat_reg.word0) ||
10741 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
10742 &portsmphr)){
10743 phba->work_hs |= UNPLUG_ERR;
10744 phba->work_ha |= HA_ERATT;
10745 phba->hba_flag |= HBA_ERATT_HANDLED;
10746 return 1;
10747 }
James Smart2fcee4b2010-12-15 17:57:46 -050010748 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
10749 phba->work_status[0] =
10750 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
10751 phba->work_status[1] =
10752 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
10753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2e90f4b2011-12-13 13:22:37 -050010754 "2885 Port Status Event: "
James Smart2fcee4b2010-12-15 17:57:46 -050010755 "port status reg 0x%x, "
10756 "port smphr reg 0x%x, "
10757 "error 1=0x%x, error 2=0x%x\n",
10758 portstat_reg.word0,
10759 portsmphr,
10760 phba->work_status[0],
10761 phba->work_status[1]);
10762 phba->work_ha |= HA_ERATT;
10763 phba->hba_flag |= HBA_ERATT_HANDLED;
10764 return 1;
10765 }
10766 break;
10767 case LPFC_SLI_INTF_IF_TYPE_1:
10768 default:
James Smarta747c9c2009-11-18 15:41:10 -050010769 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2fcee4b2010-12-15 17:57:46 -050010770 "2886 HBA Error Attention on unsupported "
10771 "if type %d.", if_type);
James Smarta747c9c2009-11-18 15:41:10 -050010772 return 1;
James Smartda0436e2009-05-22 14:51:39 -040010773 }
James Smart2fcee4b2010-12-15 17:57:46 -050010774
James Smartda0436e2009-05-22 14:51:39 -040010775 return 0;
10776}
10777
10778/**
James Smart3621a712009-04-06 18:47:14 -040010779 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -040010780 * @phba: Pointer to HBA context.
10781 *
James Smart3772a992009-05-22 14:50:54 -040010782 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -040010783 * error attention register bit for error attention events.
10784 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010785 * This function returns 1 when there is Error Attention in the Host Attention
James Smart93996272008-08-24 21:50:30 -040010786 * Register and returns 0 otherwise.
10787 **/
10788int
10789lpfc_sli_check_eratt(struct lpfc_hba *phba)
10790{
10791 uint32_t ha_copy;
10792
10793 /* If somebody is waiting to handle an eratt, don't process it
10794 * here. The brdkill function will do this.
10795 */
10796 if (phba->link_flag & LS_IGNORE_ERATT)
10797 return 0;
10798
10799 /* Check if interrupt handler handles this ERATT */
10800 spin_lock_irq(&phba->hbalock);
10801 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10802 /* Interrupt handler has handled ERATT */
10803 spin_unlock_irq(&phba->hbalock);
10804 return 0;
10805 }
10806
James Smarta257bf92009-04-06 18:48:10 -040010807 /*
10808 * If there is deferred error attention, do not check for error
10809 * attention
10810 */
10811 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10812 spin_unlock_irq(&phba->hbalock);
10813 return 0;
10814 }
10815
James Smart3772a992009-05-22 14:50:54 -040010816 /* If PCI channel is offline, don't process it */
10817 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -040010818 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040010819 return 0;
10820 }
10821
10822 switch (phba->sli_rev) {
10823 case LPFC_SLI_REV2:
10824 case LPFC_SLI_REV3:
10825 /* Read chip Host Attention (HA) register */
10826 ha_copy = lpfc_sli_eratt_read(phba);
10827 break;
James Smartda0436e2009-05-22 14:51:39 -040010828 case LPFC_SLI_REV4:
James Smart2fcee4b2010-12-15 17:57:46 -050010829 /* Read device Uncoverable Error (UERR) registers */
James Smartda0436e2009-05-22 14:51:39 -040010830 ha_copy = lpfc_sli4_eratt_read(phba);
10831 break;
James Smart3772a992009-05-22 14:50:54 -040010832 default:
10833 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10834 "0299 Invalid SLI revision (%d)\n",
10835 phba->sli_rev);
10836 ha_copy = 0;
10837 break;
James Smart93996272008-08-24 21:50:30 -040010838 }
10839 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040010840
10841 return ha_copy;
10842}
10843
10844/**
10845 * lpfc_intr_state_check - Check device state for interrupt handling
10846 * @phba: Pointer to HBA context.
10847 *
10848 * This inline routine checks whether a device or its PCI slot is in a state
10849 * that the interrupt should be handled.
10850 *
10851 * This function returns 0 if the device or the PCI slot is in a state that
10852 * interrupt should be handled, otherwise -EIO.
10853 */
10854static inline int
10855lpfc_intr_state_check(struct lpfc_hba *phba)
10856{
10857 /* If the pci channel is offline, ignore all the interrupts */
10858 if (unlikely(pci_channel_offline(phba->pcidev)))
10859 return -EIO;
10860
10861 /* Update device level interrupt statistics */
10862 phba->sli.slistat.sli_intr++;
10863
10864 /* Ignore all interrupts during initialization. */
10865 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10866 return -EIO;
10867
James Smart93996272008-08-24 21:50:30 -040010868 return 0;
10869}
10870
10871/**
James Smart3772a992009-05-22 14:50:54 -040010872 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -040010873 * @irq: Interrupt number.
10874 * @dev_id: The device context pointer.
10875 *
James Smart93996272008-08-24 21:50:30 -040010876 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040010877 * service routine when device with SLI-3 interface spec is enabled with
10878 * MSI-X multi-message interrupt mode and there are slow-path events in
10879 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10880 * interrupt mode, this function is called as part of the device-level
10881 * interrupt handler. When the PCI slot is in error recovery or the HBA
10882 * is undergoing initialization, the interrupt handler will not process
10883 * the interrupt. The link attention and ELS ring attention events are
10884 * handled by the worker thread. The interrupt handler signals the worker
10885 * thread and returns for these events. This function is called without
10886 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -040010887 * structures.
10888 *
10889 * This function returns IRQ_HANDLED when interrupt is handled else it
10890 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -040010891 **/
dea31012005-04-17 16:05:31 -050010892irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040010893lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -050010894{
James Smart2e0fef82007-06-17 19:56:36 -050010895 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -050010896 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -050010897 uint32_t work_ha_copy;
10898 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050010899 unsigned long iflag;
dea31012005-04-17 16:05:31 -050010900 uint32_t control;
10901
James Smart92d7f7b2007-06-17 19:56:38 -050010902 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -050010903 struct lpfc_vport *vport;
10904 struct lpfc_nodelist *ndlp;
10905 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -050010906 LPFC_MBOXQ_t *pmb;
10907 int rc;
10908
dea31012005-04-17 16:05:31 -050010909 /*
10910 * Get the driver's phba structure from the dev_id and
10911 * assume the HBA is not interrupting.
10912 */
James Smart93996272008-08-24 21:50:30 -040010913 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -050010914
10915 if (unlikely(!phba))
10916 return IRQ_NONE;
10917
dea31012005-04-17 16:05:31 -050010918 /*
James Smart93996272008-08-24 21:50:30 -040010919 * Stuff needs to be attented to when this function is invoked as an
10920 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050010921 */
James Smart93996272008-08-24 21:50:30 -040010922 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040010923 /* Check device state for handling interrupt */
10924 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040010925 return IRQ_NONE;
10926 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -050010927 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050010928 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10929 goto unplug_error;
James Smart93996272008-08-24 21:50:30 -040010930 /* If somebody is waiting to handle an eratt don't process it
10931 * here. The brdkill function will do this.
10932 */
10933 if (phba->link_flag & LS_IGNORE_ERATT)
10934 ha_copy &= ~HA_ERATT;
10935 /* Check the need for handling ERATT in interrupt handler */
10936 if (ha_copy & HA_ERATT) {
10937 if (phba->hba_flag & HBA_ERATT_HANDLED)
10938 /* ERATT polling has handled ERATT */
10939 ha_copy &= ~HA_ERATT;
10940 else
10941 /* Indicate interrupt handler handles ERATT */
10942 phba->hba_flag |= HBA_ERATT_HANDLED;
10943 }
James Smarta257bf92009-04-06 18:48:10 -040010944
10945 /*
10946 * If there is deferred error attention, do not check for any
10947 * interrupt.
10948 */
10949 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040010950 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040010951 return IRQ_NONE;
10952 }
10953
James Smart93996272008-08-24 21:50:30 -040010954 /* Clear up only attention source related to slow-path */
James Smart9940b972011-03-11 16:06:12 -050010955 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10956 goto unplug_error;
10957
James Smarta747c9c2009-11-18 15:41:10 -050010958 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10959 HC_LAINT_ENA | HC_ERINT_ENA),
10960 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010961 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10962 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050010963 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010964 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050010965 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040010966 } else
10967 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -050010968
dea31012005-04-17 16:05:31 -050010969 work_ha_copy = ha_copy & phba->work_ha_mask;
10970
James Smart93996272008-08-24 21:50:30 -040010971 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -050010972 if (work_ha_copy & HA_LATT) {
10973 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10974 /*
10975 * Turn off Link Attention interrupts
10976 * until CLEAR_LA done
10977 */
James Smart5b75da22008-12-04 22:39:35 -050010978 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010979 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
James Smart9940b972011-03-11 16:06:12 -050010980 if (lpfc_readl(phba->HCregaddr, &control))
10981 goto unplug_error;
dea31012005-04-17 16:05:31 -050010982 control &= ~HC_LAINT_ENA;
10983 writel(control, phba->HCregaddr);
10984 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050010985 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010986 }
10987 else
10988 work_ha_copy &= ~HA_LATT;
10989 }
10990
James Smart93996272008-08-24 21:50:30 -040010991 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -050010992 /*
10993 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10994 * the only slow ring.
10995 */
10996 status = (work_ha_copy &
10997 (HA_RXMASK << (4*LPFC_ELS_RING)));
10998 status >>= (4*LPFC_ELS_RING);
10999 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -050011000 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050011001 if (lpfc_readl(phba->HCregaddr, &control))
11002 goto unplug_error;
James Smarta58cbd52007-08-02 11:09:43 -040011003
11004 lpfc_debugfs_slow_ring_trc(phba,
11005 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11006 control, status,
11007 (uint32_t)phba->sli.slistat.sli_intr);
11008
James Smart858c9f62007-06-17 19:56:39 -050011009 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -040011010 lpfc_debugfs_slow_ring_trc(phba,
11011 "ISR Disable ring:"
11012 "pwork:x%x hawork:x%x wait:x%x",
11013 phba->work_ha, work_ha_copy,
11014 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040011015 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040011016
James Smart858c9f62007-06-17 19:56:39 -050011017 control &=
11018 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -050011019 writel(control, phba->HCregaddr);
11020 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -050011021 }
James Smarta58cbd52007-08-02 11:09:43 -040011022 else {
11023 lpfc_debugfs_slow_ring_trc(phba,
11024 "ISR slow ring: pwork:"
11025 "x%x hawork:x%x wait:x%x",
11026 phba->work_ha, work_ha_copy,
11027 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040011028 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040011029 }
James Smart5b75da22008-12-04 22:39:35 -050011030 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050011031 }
11032 }
James Smart5b75da22008-12-04 22:39:35 -050011033 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040011034 if (work_ha_copy & HA_ERATT) {
James Smart9940b972011-03-11 16:06:12 -050011035 if (lpfc_sli_read_hs(phba))
11036 goto unplug_error;
James Smarta257bf92009-04-06 18:48:10 -040011037 /*
11038 * Check if there is a deferred error condition
11039 * is active
11040 */
11041 if ((HS_FFER1 & phba->work_hs) &&
11042 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -040011043 HS_FFER6 | HS_FFER7 | HS_FFER8) &
11044 phba->work_hs)) {
James Smarta257bf92009-04-06 18:48:10 -040011045 phba->hba_flag |= DEFER_ERATT;
11046 /* Clear all interrupt enable conditions */
11047 writel(0, phba->HCregaddr);
11048 readl(phba->HCregaddr);
11049 }
11050 }
11051
James Smart93996272008-08-24 21:50:30 -040011052 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -050011053 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -040011054 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -040011055 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -050011056 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -050011057
11058 /* First check out the status word */
11059 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
11060 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -050011061 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -050011062 /*
11063 * Stray Mailbox Interrupt, mbxCommand <cmd>
11064 * mbxStatus <status>
11065 */
James Smart09372822008-01-11 01:52:54 -050011066 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -050011067 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040011068 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -050011069 "Interrupt mbxCommand x%x "
11070 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040011071 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -050011072 pmbox->mbxCommand,
11073 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -050011074 /* clear mailbox attention bit */
11075 work_ha_copy &= ~HA_MBATT;
11076 } else {
James Smart97eab632008-04-07 10:16:05 -040011077 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -050011078 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -050011079 phba->last_completion_time = jiffies;
11080 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -050011081 if (pmb->mbox_cmpl) {
11082 lpfc_sli_pcimem_bcopy(mbox, pmbox,
11083 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -040011084 if (pmb->out_ext_byte_len &&
11085 pmb->context2)
11086 lpfc_sli_pcimem_bcopy(
11087 phba->mbox_ext,
11088 pmb->context2,
11089 pmb->out_ext_byte_len);
James Smart858c9f62007-06-17 19:56:39 -050011090 }
James Smart09372822008-01-11 01:52:54 -050011091 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11092 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11093
11094 lpfc_debugfs_disc_trc(vport,
11095 LPFC_DISC_TRC_MBOX_VPORT,
11096 "MBOX dflt rpi: : "
11097 "status:x%x rpi:x%x",
11098 (uint32_t)pmbox->mbxStatus,
11099 pmbox->un.varWords[0], 0);
11100
11101 if (!pmbox->mbxStatus) {
11102 mp = (struct lpfc_dmabuf *)
11103 (pmb->context1);
11104 ndlp = (struct lpfc_nodelist *)
11105 pmb->context2;
11106
11107 /* Reg_LOGIN of dflt RPI was
11108 * successful. new lets get
11109 * rid of the RPI using the
11110 * same mbox buffer.
11111 */
11112 lpfc_unreg_login(phba,
11113 vport->vpi,
11114 pmbox->un.varWords[0],
11115 pmb);
11116 pmb->mbox_cmpl =
11117 lpfc_mbx_cmpl_dflt_rpi;
11118 pmb->context1 = mp;
11119 pmb->context2 = ndlp;
11120 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -040011121 rc = lpfc_sli_issue_mbox(phba,
11122 pmb,
11123 MBX_NOWAIT);
11124 if (rc != MBX_BUSY)
11125 lpfc_printf_log(phba,
11126 KERN_ERR,
11127 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -040011128 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -040011129 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -040011130 if (rc != MBX_NOT_FINISHED)
11131 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -050011132 }
11133 }
James Smart5b75da22008-12-04 22:39:35 -050011134 spin_lock_irqsave(
11135 &phba->pport->work_port_lock,
11136 iflag);
James Smart09372822008-01-11 01:52:54 -050011137 phba->pport->work_port_events &=
11138 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -050011139 spin_unlock_irqrestore(
11140 &phba->pport->work_port_lock,
11141 iflag);
James Smart09372822008-01-11 01:52:54 -050011142 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -050011143 }
James Smart97eab632008-04-07 10:16:05 -040011144 } else
James Smart5b75da22008-12-04 22:39:35 -050011145 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040011146
James Smart92d7f7b2007-06-17 19:56:38 -050011147 if ((work_ha_copy & HA_MBATT) &&
11148 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -050011149send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -050011150 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -040011151 do {
11152 rc = lpfc_sli_issue_mbox(phba, NULL,
11153 MBX_NOWAIT);
11154 } while (rc == MBX_NOT_FINISHED);
11155 if (rc != MBX_SUCCESS)
11156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11157 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -040011158 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -050011159 }
11160
James Smart5b75da22008-12-04 22:39:35 -050011161 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050011162 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -050011163 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -040011164 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -050011165 }
James Smart93996272008-08-24 21:50:30 -040011166 return IRQ_HANDLED;
James Smart9940b972011-03-11 16:06:12 -050011167unplug_error:
11168 spin_unlock_irqrestore(&phba->hbalock, iflag);
11169 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -050011170
James Smart3772a992009-05-22 14:50:54 -040011171} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -040011172
11173/**
James Smart3772a992009-05-22 14:50:54 -040011174 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -040011175 * @irq: Interrupt number.
11176 * @dev_id: The device context pointer.
11177 *
11178 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040011179 * service routine when device with SLI-3 interface spec is enabled with
11180 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11181 * ring event in the HBA. However, when the device is enabled with either
11182 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11183 * device-level interrupt handler. When the PCI slot is in error recovery
11184 * or the HBA is undergoing initialization, the interrupt handler will not
11185 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11186 * the intrrupt context. This function is called without any lock held.
11187 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040011188 *
11189 * This function returns IRQ_HANDLED when interrupt is handled else it
11190 * returns IRQ_NONE.
11191 **/
11192irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040011193lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040011194{
11195 struct lpfc_hba *phba;
11196 uint32_t ha_copy;
11197 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050011198 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -040011199
11200 /* Get the driver's phba structure from the dev_id and
11201 * assume the HBA is not interrupting.
11202 */
11203 phba = (struct lpfc_hba *) dev_id;
11204
11205 if (unlikely(!phba))
11206 return IRQ_NONE;
dea31012005-04-17 16:05:31 -050011207
11208 /*
James Smart93996272008-08-24 21:50:30 -040011209 * Stuff needs to be attented to when this function is invoked as an
11210 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050011211 */
James Smart93996272008-08-24 21:50:30 -040011212 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040011213 /* Check device state for handling interrupt */
11214 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040011215 return IRQ_NONE;
11216 /* Need to read HA REG for FCP ring and other ring events */
James Smart9940b972011-03-11 16:06:12 -050011217 if (lpfc_readl(phba->HAregaddr, &ha_copy))
11218 return IRQ_HANDLED;
James Smart93996272008-08-24 21:50:30 -040011219 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -050011220 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040011221 /*
11222 * If there is deferred error attention, do not check for
11223 * any interrupt.
11224 */
11225 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040011226 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040011227 return IRQ_NONE;
11228 }
James Smart93996272008-08-24 21:50:30 -040011229 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
11230 phba->HAregaddr);
11231 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050011232 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040011233 } else
11234 ha_copy = phba->ha_copy;
11235
11236 /*
11237 * Process all events on FCP ring. Take the optimized path for FCP IO.
11238 */
11239 ha_copy &= ~(phba->work_ha_mask);
11240
11241 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -050011242 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -050011243 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -050011244 lpfc_sli_handle_fast_ring_event(phba,
11245 &phba->sli.ring[LPFC_FCP_RING],
11246 status);
James Smarta4bc3372006-12-02 13:34:16 -050011247
11248 if (phba->cfg_multi_ring_support == 2) {
11249 /*
James Smart93996272008-08-24 21:50:30 -040011250 * Process all events on extra ring. Take the optimized path
11251 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -050011252 */
James Smart93996272008-08-24 21:50:30 -040011253 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -050011254 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -050011255 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -050011256 lpfc_sli_handle_fast_ring_event(phba,
11257 &phba->sli.ring[LPFC_EXTRA_RING],
11258 status);
11259 }
11260 }
dea31012005-04-17 16:05:31 -050011261 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -040011262} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -050011263
James Smart93996272008-08-24 21:50:30 -040011264/**
James Smart3772a992009-05-22 14:50:54 -040011265 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -040011266 * @irq: Interrupt number.
11267 * @dev_id: The device context pointer.
11268 *
James Smart3772a992009-05-22 14:50:54 -040011269 * This function is the HBA device-level interrupt handler to device with
11270 * SLI-3 interface spec, called from the PCI layer when either MSI or
11271 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11272 * requires driver attention. This function invokes the slow-path interrupt
11273 * attention handling function and fast-path interrupt attention handling
11274 * function in turn to process the relevant HBA attention events. This
11275 * function is called without any lock held. It gets the hbalock to access
11276 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040011277 *
11278 * This function returns IRQ_HANDLED when interrupt is handled, else it
11279 * returns IRQ_NONE.
11280 **/
11281irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040011282lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040011283{
11284 struct lpfc_hba *phba;
11285 irqreturn_t sp_irq_rc, fp_irq_rc;
11286 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -050011287 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -040011288
11289 /*
11290 * Get the driver's phba structure from the dev_id and
11291 * assume the HBA is not interrupting.
11292 */
11293 phba = (struct lpfc_hba *) dev_id;
11294
11295 if (unlikely(!phba))
11296 return IRQ_NONE;
11297
James Smart3772a992009-05-22 14:50:54 -040011298 /* Check device state for handling interrupt */
11299 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040011300 return IRQ_NONE;
11301
11302 spin_lock(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -050011303 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
11304 spin_unlock(&phba->hbalock);
11305 return IRQ_HANDLED;
11306 }
11307
James Smart93996272008-08-24 21:50:30 -040011308 if (unlikely(!phba->ha_copy)) {
11309 spin_unlock(&phba->hbalock);
11310 return IRQ_NONE;
11311 } else if (phba->ha_copy & HA_ERATT) {
11312 if (phba->hba_flag & HBA_ERATT_HANDLED)
11313 /* ERATT polling has handled ERATT */
11314 phba->ha_copy &= ~HA_ERATT;
11315 else
11316 /* Indicate interrupt handler handles ERATT */
11317 phba->hba_flag |= HBA_ERATT_HANDLED;
11318 }
11319
James Smarta257bf92009-04-06 18:48:10 -040011320 /*
11321 * If there is deferred error attention, do not check for any interrupt.
11322 */
11323 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020011324 spin_unlock(&phba->hbalock);
James Smarta257bf92009-04-06 18:48:10 -040011325 return IRQ_NONE;
11326 }
11327
James Smart93996272008-08-24 21:50:30 -040011328 /* Clear attention sources except link and error attentions */
James Smart9940b972011-03-11 16:06:12 -050011329 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
11330 spin_unlock(&phba->hbalock);
11331 return IRQ_HANDLED;
11332 }
James Smarta747c9c2009-11-18 15:41:10 -050011333 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
11334 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
11335 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040011336 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050011337 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040011338 readl(phba->HAregaddr); /* flush */
11339 spin_unlock(&phba->hbalock);
11340
11341 /*
11342 * Invokes slow-path host attention interrupt handling as appropriate.
11343 */
11344
11345 /* status of events with mailbox and link attention */
11346 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
11347
11348 /* status of events with ELS ring */
11349 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
11350 status2 >>= (4*LPFC_ELS_RING);
11351
11352 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040011353 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040011354 else
11355 sp_irq_rc = IRQ_NONE;
11356
11357 /*
11358 * Invoke fast-path host attention interrupt handling as appropriate.
11359 */
11360
11361 /* status of events with FCP ring */
11362 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
11363 status1 >>= (4*LPFC_FCP_RING);
11364
11365 /* status of events with extra ring */
11366 if (phba->cfg_multi_ring_support == 2) {
11367 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
11368 status2 >>= (4*LPFC_EXTRA_RING);
11369 } else
11370 status2 = 0;
11371
11372 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040011373 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040011374 else
11375 fp_irq_rc = IRQ_NONE;
11376
11377 /* Return device-level interrupt handling status */
11378 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -040011379} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -040011380
11381/**
11382 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11383 * @phba: pointer to lpfc hba data structure.
11384 *
11385 * This routine is invoked by the worker thread to process all the pending
11386 * SLI4 FCP abort XRI events.
11387 **/
11388void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
11389{
11390 struct lpfc_cq_event *cq_event;
11391
11392 /* First, declare the fcp xri abort event has been handled */
11393 spin_lock_irq(&phba->hbalock);
11394 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
11395 spin_unlock_irq(&phba->hbalock);
11396 /* Now, handle all the fcp xri abort events */
11397 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
11398 /* Get the first event from the head of the event queue */
11399 spin_lock_irq(&phba->hbalock);
11400 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
11401 cq_event, struct lpfc_cq_event, list);
11402 spin_unlock_irq(&phba->hbalock);
11403 /* Notify aborted XRI for FCP work queue */
11404 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11405 /* Free the event processed back to the free pool */
11406 lpfc_sli4_cq_event_release(phba, cq_event);
11407 }
11408}
11409
11410/**
11411 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11412 * @phba: pointer to lpfc hba data structure.
11413 *
11414 * This routine is invoked by the worker thread to process all the pending
11415 * SLI4 els abort xri events.
11416 **/
11417void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
11418{
11419 struct lpfc_cq_event *cq_event;
11420
11421 /* First, declare the els xri abort event has been handled */
11422 spin_lock_irq(&phba->hbalock);
11423 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
11424 spin_unlock_irq(&phba->hbalock);
11425 /* Now, handle all the els xri abort events */
11426 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
11427 /* Get the first event from the head of the event queue */
11428 spin_lock_irq(&phba->hbalock);
11429 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
11430 cq_event, struct lpfc_cq_event, list);
11431 spin_unlock_irq(&phba->hbalock);
11432 /* Notify aborted XRI for ELS work queue */
11433 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
11434 /* Free the event processed back to the free pool */
11435 lpfc_sli4_cq_event_release(phba, cq_event);
11436 }
11437}
11438
James Smart341af102010-01-26 23:07:37 -050011439/**
11440 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11441 * @phba: pointer to lpfc hba data structure
11442 * @pIocbIn: pointer to the rspiocbq
11443 * @pIocbOut: pointer to the cmdiocbq
11444 * @wcqe: pointer to the complete wcqe
11445 *
11446 * This routine transfers the fields of a command iocbq to a response iocbq
11447 * by copying all the IOCB fields from command iocbq and transferring the
11448 * completion status information from the complete wcqe.
11449 **/
James Smart4f774512009-05-22 14:52:35 -040011450static void
James Smart341af102010-01-26 23:07:37 -050011451lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
11452 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -040011453 struct lpfc_iocbq *pIocbOut,
11454 struct lpfc_wcqe_complete *wcqe)
11455{
James Smartaf227412013-10-10 12:23:10 -040011456 int numBdes, i;
James Smart341af102010-01-26 23:07:37 -050011457 unsigned long iflags;
James Smartaf227412013-10-10 12:23:10 -040011458 uint32_t status, max_response;
11459 struct lpfc_dmabuf *dmabuf;
11460 struct ulp_bde64 *bpl, bde;
James Smart4f774512009-05-22 14:52:35 -040011461 size_t offset = offsetof(struct lpfc_iocbq, iocb);
11462
11463 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
11464 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -040011465 /* Map WCQE parameters into irspiocb parameters */
James Smartacd68592012-01-18 16:25:09 -050011466 status = bf_get(lpfc_wcqe_c_status, wcqe);
11467 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
James Smart4f774512009-05-22 14:52:35 -040011468 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
11469 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
11470 pIocbIn->iocb.un.fcpi.fcpi_parm =
11471 pIocbOut->iocb.un.fcpi.fcpi_parm -
11472 wcqe->total_data_placed;
11473 else
11474 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -050011475 else {
James Smart4f774512009-05-22 14:52:35 -040011476 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smartaf227412013-10-10 12:23:10 -040011477 switch (pIocbOut->iocb.ulpCommand) {
11478 case CMD_ELS_REQUEST64_CR:
11479 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11480 bpl = (struct ulp_bde64 *)dmabuf->virt;
11481 bde.tus.w = le32_to_cpu(bpl[1].tus.w);
11482 max_response = bde.tus.f.bdeSize;
11483 break;
11484 case CMD_GEN_REQUEST64_CR:
11485 max_response = 0;
11486 if (!pIocbOut->context3)
11487 break;
11488 numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
11489 sizeof(struct ulp_bde64);
11490 dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
11491 bpl = (struct ulp_bde64 *)dmabuf->virt;
11492 for (i = 0; i < numBdes; i++) {
11493 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
11494 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
11495 max_response += bde.tus.f.bdeSize;
11496 }
11497 break;
11498 default:
11499 max_response = wcqe->total_data_placed;
11500 break;
11501 }
11502 if (max_response < wcqe->total_data_placed)
11503 pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
11504 else
11505 pIocbIn->iocb.un.genreq64.bdl.bdeSize =
11506 wcqe->total_data_placed;
James Smart695a8142010-01-26 23:08:03 -050011507 }
James Smart341af102010-01-26 23:07:37 -050011508
James Smartacd68592012-01-18 16:25:09 -050011509 /* Convert BG errors for completion status */
11510 if (status == CQE_STATUS_DI_ERROR) {
11511 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
11512
11513 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
11514 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
11515 else
11516 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
11517
11518 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
11519 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
11520 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11521 BGS_GUARD_ERR_MASK;
11522 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
11523 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11524 BGS_APPTAG_ERR_MASK;
11525 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
11526 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11527 BGS_REFTAG_ERR_MASK;
11528
11529 /* Check to see if there was any good data before the error */
11530 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
11531 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11532 BGS_HI_WATER_MARK_PRESENT_MASK;
11533 pIocbIn->iocb.unsli3.sli3_bg.bghm =
11534 wcqe->total_data_placed;
11535 }
11536
11537 /*
11538 * Set ALL the error bits to indicate we don't know what
11539 * type of error it is.
11540 */
11541 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
11542 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
11543 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
11544 BGS_GUARD_ERR_MASK);
11545 }
11546
James Smart341af102010-01-26 23:07:37 -050011547 /* Pick up HBA exchange busy condition */
11548 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
11549 spin_lock_irqsave(&phba->hbalock, iflags);
11550 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
11551 spin_unlock_irqrestore(&phba->hbalock, iflags);
11552 }
James Smart4f774512009-05-22 14:52:35 -040011553}
11554
11555/**
James Smart45ed1192009-10-02 15:17:02 -040011556 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11557 * @phba: Pointer to HBA context object.
11558 * @wcqe: Pointer to work-queue completion queue entry.
11559 *
11560 * This routine handles an ELS work-queue completion event and construct
11561 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11562 * discovery engine to handle.
11563 *
11564 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11565 **/
11566static struct lpfc_iocbq *
11567lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
11568 struct lpfc_iocbq *irspiocbq)
11569{
11570 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
11571 struct lpfc_iocbq *cmdiocbq;
11572 struct lpfc_wcqe_complete *wcqe;
11573 unsigned long iflags;
11574
11575 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
James Smart7e56aa22012-08-03 12:35:34 -040011576 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart45ed1192009-10-02 15:17:02 -040011577 pring->stats.iocb_event++;
11578 /* Look up the ELS command IOCB and create pseudo response IOCB */
11579 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11580 bf_get(lpfc_wcqe_c_request_tag, wcqe));
James Smart7e56aa22012-08-03 12:35:34 -040011581 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart45ed1192009-10-02 15:17:02 -040011582
11583 if (unlikely(!cmdiocbq)) {
11584 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11585 "0386 ELS complete with no corresponding "
11586 "cmdiocb: iotag (%d)\n",
11587 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11588 lpfc_sli_release_iocbq(phba, irspiocbq);
11589 return NULL;
11590 }
11591
11592 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050011593 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -040011594
11595 return irspiocbq;
11596}
11597
11598/**
James Smart04c68492009-05-22 14:52:52 -040011599 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11600 * @phba: Pointer to HBA context object.
11601 * @cqe: Pointer to mailbox completion queue entry.
11602 *
11603 * This routine process a mailbox completion queue entry with asynchrous
11604 * event.
11605 *
11606 * Return: true if work posted to worker thread, otherwise false.
11607 **/
11608static bool
11609lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11610{
11611 struct lpfc_cq_event *cq_event;
11612 unsigned long iflags;
11613
11614 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
11615 "0392 Async Event: word0:x%x, word1:x%x, "
11616 "word2:x%x, word3:x%x\n", mcqe->word0,
11617 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
11618
11619 /* Allocate a new internal CQ_EVENT entry */
11620 cq_event = lpfc_sli4_cq_event_alloc(phba);
11621 if (!cq_event) {
11622 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11623 "0394 Failed to allocate CQ_EVENT entry\n");
11624 return false;
11625 }
11626
11627 /* Move the CQE into an asynchronous event entry */
11628 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
11629 spin_lock_irqsave(&phba->hbalock, iflags);
11630 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
11631 /* Set the async event flag */
11632 phba->hba_flag |= ASYNC_EVENT;
11633 spin_unlock_irqrestore(&phba->hbalock, iflags);
11634
11635 return true;
11636}
11637
11638/**
11639 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11640 * @phba: Pointer to HBA context object.
11641 * @cqe: Pointer to mailbox completion queue entry.
11642 *
11643 * This routine process a mailbox completion queue entry with mailbox
11644 * completion event.
11645 *
11646 * Return: true if work posted to worker thread, otherwise false.
11647 **/
11648static bool
11649lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
11650{
11651 uint32_t mcqe_status;
11652 MAILBOX_t *mbox, *pmbox;
11653 struct lpfc_mqe *mqe;
11654 struct lpfc_vport *vport;
11655 struct lpfc_nodelist *ndlp;
11656 struct lpfc_dmabuf *mp;
11657 unsigned long iflags;
11658 LPFC_MBOXQ_t *pmb;
11659 bool workposted = false;
11660 int rc;
11661
11662 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11663 if (!bf_get(lpfc_trailer_completed, mcqe))
11664 goto out_no_mqe_complete;
11665
11666 /* Get the reference to the active mbox command */
11667 spin_lock_irqsave(&phba->hbalock, iflags);
11668 pmb = phba->sli.mbox_active;
11669 if (unlikely(!pmb)) {
11670 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11671 "1832 No pending MBOX command to handle\n");
11672 spin_unlock_irqrestore(&phba->hbalock, iflags);
11673 goto out_no_mqe_complete;
11674 }
11675 spin_unlock_irqrestore(&phba->hbalock, iflags);
11676 mqe = &pmb->u.mqe;
11677 pmbox = (MAILBOX_t *)&pmb->u.mqe;
11678 mbox = phba->mbox;
11679 vport = pmb->vport;
11680
11681 /* Reset heartbeat timer */
11682 phba->last_completion_time = jiffies;
11683 del_timer(&phba->sli.mbox_tmo);
11684
11685 /* Move mbox data to caller's mailbox region, do endian swapping */
11686 if (pmb->mbox_cmpl && mbox)
11687 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
James Smart04c68492009-05-22 14:52:52 -040011688
James Smart73d91e52011-10-10 21:32:10 -040011689 /*
11690 * For mcqe errors, conditionally move a modified error code to
11691 * the mbox so that the error will not be missed.
11692 */
11693 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
11694 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
11695 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
11696 bf_set(lpfc_mqe_status, mqe,
11697 (LPFC_MBX_ERROR_RANGE | mcqe_status));
11698 }
James Smart04c68492009-05-22 14:52:52 -040011699 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
11700 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
11701 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
11702 "MBOX dflt rpi: status:x%x rpi:x%x",
11703 mcqe_status,
11704 pmbox->un.varWords[0], 0);
11705 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
11706 mp = (struct lpfc_dmabuf *)(pmb->context1);
11707 ndlp = (struct lpfc_nodelist *)pmb->context2;
11708 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11709 * RID of the PPI using the same mbox buffer.
11710 */
11711 lpfc_unreg_login(phba, vport->vpi,
11712 pmbox->un.varWords[0], pmb);
11713 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
11714 pmb->context1 = mp;
11715 pmb->context2 = ndlp;
11716 pmb->vport = vport;
11717 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
11718 if (rc != MBX_BUSY)
11719 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
11720 LOG_SLI, "0385 rc should "
11721 "have been MBX_BUSY\n");
11722 if (rc != MBX_NOT_FINISHED)
11723 goto send_current_mbox;
11724 }
11725 }
11726 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
11727 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
11728 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
11729
11730 /* There is mailbox completion work to do */
11731 spin_lock_irqsave(&phba->hbalock, iflags);
11732 __lpfc_mbox_cmpl_put(phba, pmb);
11733 phba->work_ha |= HA_MBATT;
11734 spin_unlock_irqrestore(&phba->hbalock, iflags);
11735 workposted = true;
11736
11737send_current_mbox:
11738 spin_lock_irqsave(&phba->hbalock, iflags);
11739 /* Release the mailbox command posting token */
11740 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
11741 /* Setting active mailbox pointer need to be in sync to flag clear */
11742 phba->sli.mbox_active = NULL;
11743 spin_unlock_irqrestore(&phba->hbalock, iflags);
11744 /* Wake up worker thread to post the next pending mailbox command */
11745 lpfc_worker_wake_up(phba);
11746out_no_mqe_complete:
11747 if (bf_get(lpfc_trailer_consumed, mcqe))
11748 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
11749 return workposted;
11750}
11751
11752/**
11753 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11754 * @phba: Pointer to HBA context object.
11755 * @cqe: Pointer to mailbox completion queue entry.
11756 *
11757 * This routine process a mailbox completion queue entry, it invokes the
11758 * proper mailbox complete handling or asynchrous event handling routine
11759 * according to the MCQE's async bit.
11760 *
11761 * Return: true if work posted to worker thread, otherwise false.
11762 **/
11763static bool
11764lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
11765{
11766 struct lpfc_mcqe mcqe;
11767 bool workposted;
11768
11769 /* Copy the mailbox MCQE and convert endian order as needed */
11770 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
11771
11772 /* Invoke the proper event handling routine */
11773 if (!bf_get(lpfc_trailer_async, &mcqe))
11774 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
11775 else
11776 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
11777 return workposted;
11778}
11779
11780/**
James Smart4f774512009-05-22 14:52:35 -040011781 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11782 * @phba: Pointer to HBA context object.
James Smart2a76a282012-08-03 12:35:54 -040011783 * @cq: Pointer to associated CQ
James Smart4f774512009-05-22 14:52:35 -040011784 * @wcqe: Pointer to work-queue completion queue entry.
11785 *
11786 * This routine handles an ELS work-queue completion event.
11787 *
11788 * Return: true if work posted to worker thread, otherwise false.
11789 **/
11790static bool
James Smart2a76a282012-08-03 12:35:54 -040011791lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040011792 struct lpfc_wcqe_complete *wcqe)
11793{
James Smart4f774512009-05-22 14:52:35 -040011794 struct lpfc_iocbq *irspiocbq;
11795 unsigned long iflags;
James Smart2a76a282012-08-03 12:35:54 -040011796 struct lpfc_sli_ring *pring = cq->pring;
James Smart0e9bb8d2013-03-01 16:35:12 -050011797 int txq_cnt = 0;
11798 int txcmplq_cnt = 0;
11799 int fcp_txcmplq_cnt = 0;
James Smart4f774512009-05-22 14:52:35 -040011800
James Smart45ed1192009-10-02 15:17:02 -040011801 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -040011802 irspiocbq = lpfc_sli_get_iocbq(phba);
11803 if (!irspiocbq) {
James Smart0e9bb8d2013-03-01 16:35:12 -050011804 if (!list_empty(&pring->txq))
11805 txq_cnt++;
11806 if (!list_empty(&pring->txcmplq))
11807 txcmplq_cnt++;
11808 if (!list_empty(&phba->sli.ring[LPFC_FCP_RING].txcmplq))
11809 fcp_txcmplq_cnt++;
James Smart4f774512009-05-22 14:52:35 -040011810 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2a9bf3d2010-06-07 15:24:45 -040011811 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11812 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
James Smart0e9bb8d2013-03-01 16:35:12 -050011813 txq_cnt, phba->iocb_cnt,
11814 fcp_txcmplq_cnt,
11815 txcmplq_cnt);
James Smart45ed1192009-10-02 15:17:02 -040011816 return false;
James Smart4f774512009-05-22 14:52:35 -040011817 }
James Smart4f774512009-05-22 14:52:35 -040011818
James Smart45ed1192009-10-02 15:17:02 -040011819 /* Save off the slow-path queue event for work thread to process */
11820 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -040011821 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -040011822 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040011823 &phba->sli4_hba.sp_queue_event);
11824 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -040011825 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -040011826
James Smart45ed1192009-10-02 15:17:02 -040011827 return true;
James Smart4f774512009-05-22 14:52:35 -040011828}
11829
11830/**
11831 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11832 * @phba: Pointer to HBA context object.
11833 * @wcqe: Pointer to work-queue completion queue entry.
11834 *
11835 * This routine handles slow-path WQ entry comsumed event by invoking the
11836 * proper WQ release routine to the slow-path WQ.
11837 **/
11838static void
11839lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11840 struct lpfc_wcqe_release *wcqe)
11841{
James Smart2e90f4b2011-12-13 13:22:37 -050011842 /* sanity check on queue memory */
11843 if (unlikely(!phba->sli4_hba.els_wq))
11844 return;
James Smart4f774512009-05-22 14:52:35 -040011845 /* Check for the slow-path ELS work queue */
11846 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11847 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11848 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11849 else
11850 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11851 "2579 Slow-path wqe consume event carries "
11852 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11853 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11854 phba->sli4_hba.els_wq->queue_id);
11855}
11856
11857/**
11858 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11859 * @phba: Pointer to HBA context object.
11860 * @cq: Pointer to a WQ completion queue.
11861 * @wcqe: Pointer to work-queue completion queue entry.
11862 *
11863 * This routine handles an XRI abort event.
11864 *
11865 * Return: true if work posted to worker thread, otherwise false.
11866 **/
11867static bool
11868lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11869 struct lpfc_queue *cq,
11870 struct sli4_wcqe_xri_aborted *wcqe)
11871{
11872 bool workposted = false;
11873 struct lpfc_cq_event *cq_event;
11874 unsigned long iflags;
11875
11876 /* Allocate a new internal CQ_EVENT entry */
11877 cq_event = lpfc_sli4_cq_event_alloc(phba);
11878 if (!cq_event) {
11879 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11880 "0602 Failed to allocate CQ_EVENT entry\n");
11881 return false;
11882 }
11883
11884 /* Move the CQE into the proper xri abort event list */
11885 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11886 switch (cq->subtype) {
11887 case LPFC_FCP:
11888 spin_lock_irqsave(&phba->hbalock, iflags);
11889 list_add_tail(&cq_event->list,
11890 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11891 /* Set the fcp xri abort event flag */
11892 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11893 spin_unlock_irqrestore(&phba->hbalock, iflags);
11894 workposted = true;
11895 break;
11896 case LPFC_ELS:
11897 spin_lock_irqsave(&phba->hbalock, iflags);
11898 list_add_tail(&cq_event->list,
11899 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11900 /* Set the els xri abort event flag */
11901 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11902 spin_unlock_irqrestore(&phba->hbalock, iflags);
11903 workposted = true;
11904 break;
11905 default:
11906 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11907 "0603 Invalid work queue CQE subtype (x%x)\n",
11908 cq->subtype);
11909 workposted = false;
11910 break;
11911 }
11912 return workposted;
11913}
11914
11915/**
James Smart4d9ab992009-10-02 15:16:39 -040011916 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -040011917 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -040011918 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040011919 *
James Smart4d9ab992009-10-02 15:16:39 -040011920 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040011921 *
11922 * Return: true if work posted to worker thread, otherwise false.
11923 **/
11924static bool
James Smart4d9ab992009-10-02 15:16:39 -040011925lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11926{
11927 bool workposted = false;
11928 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11929 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11930 struct hbq_dmabuf *dma_buf;
James Smart7851fe22011-07-22 18:36:52 -040011931 uint32_t status, rq_id;
James Smart4d9ab992009-10-02 15:16:39 -040011932 unsigned long iflags;
11933
James Smart2e90f4b2011-12-13 13:22:37 -050011934 /* sanity check on queue memory */
11935 if (unlikely(!hrq) || unlikely(!drq))
11936 return workposted;
11937
James Smart7851fe22011-07-22 18:36:52 -040011938 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11939 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11940 else
11941 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11942 if (rq_id != hrq->queue_id)
James Smart4d9ab992009-10-02 15:16:39 -040011943 goto out;
11944
11945 status = bf_get(lpfc_rcqe_status, rcqe);
11946 switch (status) {
11947 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11948 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11949 "2537 Receive Frame Truncated!!\n");
James Smartb84daac2012-08-03 12:35:13 -040011950 hrq->RQ_buf_trunc++;
James Smart4d9ab992009-10-02 15:16:39 -040011951 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -050011952 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -040011953 spin_lock_irqsave(&phba->hbalock, iflags);
11954 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11955 if (!dma_buf) {
James Smartb84daac2012-08-03 12:35:13 -040011956 hrq->RQ_no_buf_found++;
James Smart4d9ab992009-10-02 15:16:39 -040011957 spin_unlock_irqrestore(&phba->hbalock, iflags);
11958 goto out;
11959 }
James Smartb84daac2012-08-03 12:35:13 -040011960 hrq->RQ_rcv_buf++;
James Smart4d9ab992009-10-02 15:16:39 -040011961 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11962 /* save off the frame for the word thread to process */
11963 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040011964 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -040011965 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -040011966 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -040011967 spin_unlock_irqrestore(&phba->hbalock, iflags);
11968 workposted = true;
11969 break;
11970 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11971 case FC_STATUS_INSUFF_BUF_FRM_DISC:
James Smartb84daac2012-08-03 12:35:13 -040011972 hrq->RQ_no_posted_buf++;
James Smart4d9ab992009-10-02 15:16:39 -040011973 /* Post more buffers if possible */
11974 spin_lock_irqsave(&phba->hbalock, iflags);
11975 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11976 spin_unlock_irqrestore(&phba->hbalock, iflags);
11977 workposted = true;
11978 break;
11979 }
11980out:
11981 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -040011982}
11983
11984/**
11985 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11986 * @phba: Pointer to HBA context object.
11987 * @cq: Pointer to the completion queue.
11988 * @wcqe: Pointer to a completion queue entry.
11989 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030011990 * This routine process a slow-path work-queue or receive queue completion queue
James Smart4d9ab992009-10-02 15:16:39 -040011991 * entry.
11992 *
11993 * Return: true if work posted to worker thread, otherwise false.
11994 **/
11995static bool
11996lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040011997 struct lpfc_cqe *cqe)
11998{
James Smart45ed1192009-10-02 15:17:02 -040011999 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -040012000 bool workposted = false;
12001
12002 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -040012003 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -040012004
12005 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -040012006 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -040012007 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -040012008 /* Process the WQ/RQ complete event */
James Smartbc739052010-08-04 16:11:18 -040012009 phba->last_completion_time = jiffies;
James Smart2a76a282012-08-03 12:35:54 -040012010 workposted = lpfc_sli4_sp_handle_els_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -040012011 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040012012 break;
12013 case CQE_CODE_RELEASE_WQE:
12014 /* Process the WQ release event */
12015 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040012016 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040012017 break;
12018 case CQE_CODE_XRI_ABORTED:
12019 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040012020 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040012021 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -040012022 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040012023 break;
James Smart4d9ab992009-10-02 15:16:39 -040012024 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -040012025 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -040012026 /* Process the RQ event */
James Smartbc739052010-08-04 16:11:18 -040012027 phba->last_completion_time = jiffies;
James Smart4d9ab992009-10-02 15:16:39 -040012028 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040012029 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -040012030 break;
James Smart4f774512009-05-22 14:52:35 -040012031 default:
12032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12033 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -040012034 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -040012035 break;
12036 }
12037 return workposted;
12038}
12039
12040/**
James Smart4f774512009-05-22 14:52:35 -040012041 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12042 * @phba: Pointer to HBA context object.
12043 * @eqe: Pointer to fast-path event queue entry.
12044 *
12045 * This routine process a event queue entry from the slow-path event queue.
12046 * It will check the MajorCode and MinorCode to determine this is for a
12047 * completion event on a completion queue, if not, an error shall be logged
12048 * and just return. Otherwise, it will get to the corresponding completion
12049 * queue and process all the entries on that completion queue, rearm the
12050 * completion queue, and then return.
12051 *
12052 **/
12053static void
James Smart67d12732012-08-03 12:36:13 -040012054lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12055 struct lpfc_queue *speq)
James Smart4f774512009-05-22 14:52:35 -040012056{
James Smart67d12732012-08-03 12:36:13 -040012057 struct lpfc_queue *cq = NULL, *childq;
James Smart4f774512009-05-22 14:52:35 -040012058 struct lpfc_cqe *cqe;
12059 bool workposted = false;
12060 int ecount = 0;
12061 uint16_t cqid;
12062
James Smart4f774512009-05-22 14:52:35 -040012063 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -040012064 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -040012065
James Smart4f774512009-05-22 14:52:35 -040012066 list_for_each_entry(childq, &speq->child_list, list) {
12067 if (childq->queue_id == cqid) {
12068 cq = childq;
12069 break;
12070 }
12071 }
12072 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -040012073 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12074 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12075 "0365 Slow-path CQ identifier "
12076 "(%d) does not exist\n", cqid);
James Smart4f774512009-05-22 14:52:35 -040012077 return;
12078 }
12079
12080 /* Process all the entries to the CQ */
12081 switch (cq->type) {
12082 case LPFC_MCQ:
12083 while ((cqe = lpfc_sli4_cq_get(cq))) {
12084 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
James Smart73d91e52011-10-10 21:32:10 -040012085 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040012086 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
James Smartb84daac2012-08-03 12:35:13 -040012087 cq->CQ_mbox++;
James Smart4f774512009-05-22 14:52:35 -040012088 }
12089 break;
12090 case LPFC_WCQ:
12091 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart05580562011-05-24 11:40:48 -040012092 if (cq->subtype == LPFC_FCP)
12093 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
12094 cqe);
12095 else
12096 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
12097 cqe);
James Smart73d91e52011-10-10 21:32:10 -040012098 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040012099 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12100 }
James Smartb84daac2012-08-03 12:35:13 -040012101
12102 /* Track the max number of CQEs processed in 1 EQ */
12103 if (ecount > cq->CQ_max_cqe)
12104 cq->CQ_max_cqe = ecount;
James Smart4f774512009-05-22 14:52:35 -040012105 break;
12106 default:
12107 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12108 "0370 Invalid completion queue type (%d)\n",
12109 cq->type);
12110 return;
12111 }
12112
12113 /* Catch the no cq entry condition, log an error */
12114 if (unlikely(ecount == 0))
12115 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12116 "0371 No entry from the CQ: identifier "
12117 "(x%x), type (%d)\n", cq->queue_id, cq->type);
12118
12119 /* In any case, flash and re-arm the RCQ */
12120 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12121
12122 /* wake up worker thread if there are works to be done */
12123 if (workposted)
12124 lpfc_worker_wake_up(phba);
12125}
12126
12127/**
12128 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
James Smart2a76a282012-08-03 12:35:54 -040012129 * @phba: Pointer to HBA context object.
12130 * @cq: Pointer to associated CQ
12131 * @wcqe: Pointer to work-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040012132 *
12133 * This routine process a fast-path work queue completion entry from fast-path
12134 * event queue for FCP command response completion.
12135 **/
12136static void
James Smart2a76a282012-08-03 12:35:54 -040012137lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040012138 struct lpfc_wcqe_complete *wcqe)
12139{
James Smart2a76a282012-08-03 12:35:54 -040012140 struct lpfc_sli_ring *pring = cq->pring;
James Smart4f774512009-05-22 14:52:35 -040012141 struct lpfc_iocbq *cmdiocbq;
12142 struct lpfc_iocbq irspiocbq;
12143 unsigned long iflags;
12144
James Smart4f774512009-05-22 14:52:35 -040012145 /* Check for response status */
12146 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
12147 /* If resource errors reported from HBA, reduce queue
12148 * depth of the SCSI device.
12149 */
James Smarte3d2b802012-08-14 14:25:43 -040012150 if (((bf_get(lpfc_wcqe_c_status, wcqe) ==
12151 IOSTAT_LOCAL_REJECT)) &&
12152 ((wcqe->parameter & IOERR_PARAM_MASK) ==
12153 IOERR_NO_RESOURCES))
James Smart4f774512009-05-22 14:52:35 -040012154 phba->lpfc_rampdown_queue_depth(phba);
James Smarte3d2b802012-08-14 14:25:43 -040012155
James Smart4f774512009-05-22 14:52:35 -040012156 /* Log the error status */
12157 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12158 "0373 FCP complete error: status=x%x, "
12159 "hw_status=x%x, total_data_specified=%d, "
12160 "parameter=x%x, word3=x%x\n",
12161 bf_get(lpfc_wcqe_c_status, wcqe),
12162 bf_get(lpfc_wcqe_c_hw_status, wcqe),
12163 wcqe->total_data_placed, wcqe->parameter,
12164 wcqe->word3);
12165 }
12166
12167 /* Look up the FCP command IOCB and create pseudo response IOCB */
James Smart7e56aa22012-08-03 12:35:34 -040012168 spin_lock_irqsave(&pring->ring_lock, iflags);
12169 pring->stats.iocb_event++;
James Smart4f774512009-05-22 14:52:35 -040012170 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
12171 bf_get(lpfc_wcqe_c_request_tag, wcqe));
James Smart7e56aa22012-08-03 12:35:34 -040012172 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart4f774512009-05-22 14:52:35 -040012173 if (unlikely(!cmdiocbq)) {
12174 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12175 "0374 FCP complete with no corresponding "
12176 "cmdiocb: iotag (%d)\n",
12177 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12178 return;
12179 }
12180 if (unlikely(!cmdiocbq->iocb_cmpl)) {
12181 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12182 "0375 FCP cmdiocb not callback function "
12183 "iotag: (%d)\n",
12184 bf_get(lpfc_wcqe_c_request_tag, wcqe));
12185 return;
12186 }
12187
12188 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050012189 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -040012190
James Smart0f65ff62010-02-26 14:14:23 -050012191 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
12192 spin_lock_irqsave(&phba->hbalock, iflags);
12193 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
12194 spin_unlock_irqrestore(&phba->hbalock, iflags);
12195 }
12196
James Smart4f774512009-05-22 14:52:35 -040012197 /* Pass the cmd_iocb and the rsp state to the upper layer */
12198 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
12199}
12200
12201/**
12202 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12203 * @phba: Pointer to HBA context object.
12204 * @cq: Pointer to completion queue.
12205 * @wcqe: Pointer to work-queue completion queue entry.
12206 *
12207 * This routine handles an fast-path WQ entry comsumed event by invoking the
12208 * proper WQ release routine to the slow-path WQ.
12209 **/
12210static void
12211lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12212 struct lpfc_wcqe_release *wcqe)
12213{
12214 struct lpfc_queue *childwq;
12215 bool wqid_matched = false;
12216 uint16_t fcp_wqid;
12217
12218 /* Check for fast-path FCP work queue release */
12219 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
12220 list_for_each_entry(childwq, &cq->child_list, list) {
12221 if (childwq->queue_id == fcp_wqid) {
12222 lpfc_sli4_wq_release(childwq,
12223 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
12224 wqid_matched = true;
12225 break;
12226 }
12227 }
12228 /* Report warning log message if no match found */
12229 if (wqid_matched != true)
12230 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12231 "2580 Fast-path wqe consume event carries "
12232 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
12233}
12234
12235/**
12236 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12237 * @cq: Pointer to the completion queue.
12238 * @eqe: Pointer to fast-path completion queue entry.
12239 *
12240 * This routine process a fast-path work queue completion entry from fast-path
12241 * event queue for FCP command response completion.
12242 **/
12243static int
12244lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
12245 struct lpfc_cqe *cqe)
12246{
12247 struct lpfc_wcqe_release wcqe;
12248 bool workposted = false;
12249
12250 /* Copy the work queue CQE and convert endian order if needed */
12251 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
12252
12253 /* Check and process for different type of WCQE and dispatch */
12254 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
12255 case CQE_CODE_COMPL_WQE:
James Smartb84daac2012-08-03 12:35:13 -040012256 cq->CQ_wq++;
James Smart4f774512009-05-22 14:52:35 -040012257 /* Process the WQ complete event */
James Smart98fc5dd2010-06-07 15:24:29 -040012258 phba->last_completion_time = jiffies;
James Smart2a76a282012-08-03 12:35:54 -040012259 lpfc_sli4_fp_handle_fcp_wcqe(phba, cq,
James Smart4f774512009-05-22 14:52:35 -040012260 (struct lpfc_wcqe_complete *)&wcqe);
12261 break;
12262 case CQE_CODE_RELEASE_WQE:
James Smartb84daac2012-08-03 12:35:13 -040012263 cq->CQ_release_wqe++;
James Smart4f774512009-05-22 14:52:35 -040012264 /* Process the WQ release event */
12265 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
12266 (struct lpfc_wcqe_release *)&wcqe);
12267 break;
12268 case CQE_CODE_XRI_ABORTED:
James Smartb84daac2012-08-03 12:35:13 -040012269 cq->CQ_xri_aborted++;
James Smart4f774512009-05-22 14:52:35 -040012270 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040012271 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040012272 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
12273 (struct sli4_wcqe_xri_aborted *)&wcqe);
12274 break;
12275 default:
12276 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12277 "0144 Not a valid WCQE code: x%x\n",
12278 bf_get(lpfc_wcqe_c_code, &wcqe));
12279 break;
12280 }
12281 return workposted;
12282}
12283
12284/**
James Smart67d12732012-08-03 12:36:13 -040012285 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
James Smart4f774512009-05-22 14:52:35 -040012286 * @phba: Pointer to HBA context object.
12287 * @eqe: Pointer to fast-path event queue entry.
12288 *
12289 * This routine process a event queue entry from the fast-path event queue.
12290 * It will check the MajorCode and MinorCode to determine this is for a
12291 * completion event on a completion queue, if not, an error shall be logged
12292 * and just return. Otherwise, it will get to the corresponding completion
12293 * queue and process all the entries on the completion queue, rearm the
12294 * completion queue, and then return.
12295 **/
12296static void
James Smart67d12732012-08-03 12:36:13 -040012297lpfc_sli4_hba_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
12298 uint32_t qidx)
James Smart4f774512009-05-22 14:52:35 -040012299{
12300 struct lpfc_queue *cq;
12301 struct lpfc_cqe *cqe;
12302 bool workposted = false;
12303 uint16_t cqid;
12304 int ecount = 0;
12305
James Smartcb5172e2010-03-15 11:25:07 -040012306 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
James Smart4f774512009-05-22 14:52:35 -040012307 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart67d12732012-08-03 12:36:13 -040012308 "0366 Not a valid completion "
James Smart4f774512009-05-22 14:52:35 -040012309 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -040012310 bf_get_le32(lpfc_eqe_major_code, eqe),
12311 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -040012312 return;
12313 }
12314
James Smart67d12732012-08-03 12:36:13 -040012315 /* Get the reference to the corresponding CQ */
12316 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12317
12318 /* Check if this is a Slow path event */
12319 if (unlikely(cqid != phba->sli4_hba.fcp_cq_map[qidx])) {
12320 lpfc_sli4_sp_handle_eqe(phba, eqe,
12321 phba->sli4_hba.hba_eq[qidx]);
12322 return;
12323 }
12324
James Smart2e90f4b2011-12-13 13:22:37 -050012325 if (unlikely(!phba->sli4_hba.fcp_cq)) {
12326 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12327 "3146 Fast-path completion queues "
12328 "does not exist\n");
12329 return;
12330 }
James Smart67d12732012-08-03 12:36:13 -040012331 cq = phba->sli4_hba.fcp_cq[qidx];
James Smart4f774512009-05-22 14:52:35 -040012332 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -040012333 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12334 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12335 "0367 Fast-path completion queue "
James Smart67d12732012-08-03 12:36:13 -040012336 "(%d) does not exist\n", qidx);
James Smart4f774512009-05-22 14:52:35 -040012337 return;
12338 }
12339
James Smart4f774512009-05-22 14:52:35 -040012340 if (unlikely(cqid != cq->queue_id)) {
12341 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12342 "0368 Miss-matched fast-path completion "
12343 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12344 cqid, cq->queue_id);
12345 return;
12346 }
12347
12348 /* Process all the entries to the CQ */
12349 while ((cqe = lpfc_sli4_cq_get(cq))) {
12350 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
James Smart73d91e52011-10-10 21:32:10 -040012351 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040012352 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12353 }
12354
James Smartb84daac2012-08-03 12:35:13 -040012355 /* Track the max number of CQEs processed in 1 EQ */
12356 if (ecount > cq->CQ_max_cqe)
12357 cq->CQ_max_cqe = ecount;
12358
James Smart4f774512009-05-22 14:52:35 -040012359 /* Catch the no cq entry condition */
12360 if (unlikely(ecount == 0))
12361 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12362 "0369 No entry from fast-path completion "
12363 "queue fcpcqid=%d\n", cq->queue_id);
12364
12365 /* In any case, flash and re-arm the CQ */
12366 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12367
12368 /* wake up worker thread if there are works to be done */
12369 if (workposted)
12370 lpfc_worker_wake_up(phba);
12371}
12372
12373static void
12374lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
12375{
12376 struct lpfc_eqe *eqe;
12377
12378 /* walk all the EQ entries and drop on the floor */
12379 while ((eqe = lpfc_sli4_eq_get(eq)))
12380 ;
12381
12382 /* Clear and re-arm the EQ */
12383 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12384}
12385
James Smart1ba981f2014-02-20 09:56:45 -050012386
12387/**
12388 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12389 * entry
12390 * @phba: Pointer to HBA context object.
12391 * @eqe: Pointer to fast-path event queue entry.
12392 *
12393 * This routine process a event queue entry from the Flash Optimized Fabric
12394 * event queue. It will check the MajorCode and MinorCode to determine this
12395 * is for a completion event on a completion queue, if not, an error shall be
12396 * logged and just return. Otherwise, it will get to the corresponding
12397 * completion queue and process all the entries on the completion queue, rearm
12398 * the completion queue, and then return.
12399 **/
12400static void
12401lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
12402{
12403 struct lpfc_queue *cq;
12404 struct lpfc_cqe *cqe;
12405 bool workposted = false;
12406 uint16_t cqid;
12407 int ecount = 0;
12408
12409 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
12410 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12411 "9147 Not a valid completion "
12412 "event: majorcode=x%x, minorcode=x%x\n",
12413 bf_get_le32(lpfc_eqe_major_code, eqe),
12414 bf_get_le32(lpfc_eqe_minor_code, eqe));
12415 return;
12416 }
12417
12418 /* Get the reference to the corresponding CQ */
12419 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
12420
12421 /* Next check for OAS */
12422 cq = phba->sli4_hba.oas_cq;
12423 if (unlikely(!cq)) {
12424 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
12425 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12426 "9148 OAS completion queue "
12427 "does not exist\n");
12428 return;
12429 }
12430
12431 if (unlikely(cqid != cq->queue_id)) {
12432 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12433 "9149 Miss-matched fast-path compl "
12434 "queue id: eqcqid=%d, fcpcqid=%d\n",
12435 cqid, cq->queue_id);
12436 return;
12437 }
12438
12439 /* Process all the entries to the OAS CQ */
12440 while ((cqe = lpfc_sli4_cq_get(cq))) {
12441 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
12442 if (!(++ecount % cq->entry_repost))
12443 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
12444 }
12445
12446 /* Track the max number of CQEs processed in 1 EQ */
12447 if (ecount > cq->CQ_max_cqe)
12448 cq->CQ_max_cqe = ecount;
12449
12450 /* Catch the no cq entry condition */
12451 if (unlikely(ecount == 0))
12452 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12453 "9153 No entry from fast-path completion "
12454 "queue fcpcqid=%d\n", cq->queue_id);
12455
12456 /* In any case, flash and re-arm the CQ */
12457 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
12458
12459 /* wake up worker thread if there are works to be done */
12460 if (workposted)
12461 lpfc_worker_wake_up(phba);
12462}
12463
12464/**
12465 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12466 * @irq: Interrupt number.
12467 * @dev_id: The device context pointer.
12468 *
12469 * This function is directly called from the PCI layer as an interrupt
12470 * service routine when device with SLI-4 interface spec is enabled with
12471 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12472 * IOCB ring event in the HBA. However, when the device is enabled with either
12473 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12474 * device-level interrupt handler. When the PCI slot is in error recovery
12475 * or the HBA is undergoing initialization, the interrupt handler will not
12476 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12477 * the intrrupt context. This function is called without any lock held.
12478 * It gets the hbalock to access and update SLI data structures. Note that,
12479 * the EQ to CQ are one-to-one map such that the EQ index is
12480 * equal to that of CQ index.
12481 *
12482 * This function returns IRQ_HANDLED when interrupt is handled else it
12483 * returns IRQ_NONE.
12484 **/
12485irqreturn_t
12486lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
12487{
12488 struct lpfc_hba *phba;
12489 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12490 struct lpfc_queue *eq;
12491 struct lpfc_eqe *eqe;
12492 unsigned long iflag;
12493 int ecount = 0;
12494 uint32_t eqidx;
12495
12496 /* Get the driver's phba structure from the dev_id */
12497 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12498 phba = fcp_eq_hdl->phba;
12499 eqidx = fcp_eq_hdl->idx;
12500
12501 if (unlikely(!phba))
12502 return IRQ_NONE;
12503
12504 /* Get to the EQ struct associated with this vector */
12505 eq = phba->sli4_hba.fof_eq;
12506 if (unlikely(!eq))
12507 return IRQ_NONE;
12508
12509 /* Check device state for handling interrupt */
12510 if (unlikely(lpfc_intr_state_check(phba))) {
12511 eq->EQ_badstate++;
12512 /* Check again for link_state with lock held */
12513 spin_lock_irqsave(&phba->hbalock, iflag);
12514 if (phba->link_state < LPFC_LINK_DOWN)
12515 /* Flush, clear interrupt, and rearm the EQ */
12516 lpfc_sli4_eq_flush(phba, eq);
12517 spin_unlock_irqrestore(&phba->hbalock, iflag);
12518 return IRQ_NONE;
12519 }
12520
12521 /*
12522 * Process all the event on FCP fast-path EQ
12523 */
12524 while ((eqe = lpfc_sli4_eq_get(eq))) {
12525 lpfc_sli4_fof_handle_eqe(phba, eqe);
12526 if (!(++ecount % eq->entry_repost))
12527 lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
12528 eq->EQ_processed++;
12529 }
12530
12531 /* Track the max number of EQEs processed in 1 intr */
12532 if (ecount > eq->EQ_max_eqe)
12533 eq->EQ_max_eqe = ecount;
12534
12535
12536 if (unlikely(ecount == 0)) {
12537 eq->EQ_no_entry++;
12538
12539 if (phba->intr_type == MSIX)
12540 /* MSI-X treated interrupt served as no EQ share INT */
12541 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12542 "9145 MSI-X interrupt with no EQE\n");
12543 else {
12544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12545 "9146 ISR interrupt with no EQE\n");
12546 /* Non MSI-X treated on interrupt as EQ share INT */
12547 return IRQ_NONE;
12548 }
12549 }
12550 /* Always clear and re-arm the fast-path EQ */
12551 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
12552 return IRQ_HANDLED;
12553}
12554
James Smart4f774512009-05-22 14:52:35 -040012555/**
James Smart67d12732012-08-03 12:36:13 -040012556 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
James Smart4f774512009-05-22 14:52:35 -040012557 * @irq: Interrupt number.
12558 * @dev_id: The device context pointer.
12559 *
12560 * This function is directly called from the PCI layer as an interrupt
12561 * service routine when device with SLI-4 interface spec is enabled with
12562 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12563 * ring event in the HBA. However, when the device is enabled with either
12564 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12565 * device-level interrupt handler. When the PCI slot is in error recovery
12566 * or the HBA is undergoing initialization, the interrupt handler will not
12567 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12568 * the intrrupt context. This function is called without any lock held.
12569 * It gets the hbalock to access and update SLI data structures. Note that,
12570 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12571 * equal to that of FCP CQ index.
12572 *
James Smart67d12732012-08-03 12:36:13 -040012573 * The link attention and ELS ring attention events are handled
12574 * by the worker thread. The interrupt handler signals the worker thread
12575 * and returns for these events. This function is called without any lock
12576 * held. It gets the hbalock to access and update SLI data structures.
12577 *
James Smart4f774512009-05-22 14:52:35 -040012578 * This function returns IRQ_HANDLED when interrupt is handled else it
12579 * returns IRQ_NONE.
12580 **/
12581irqreturn_t
James Smart67d12732012-08-03 12:36:13 -040012582lpfc_sli4_hba_intr_handler(int irq, void *dev_id)
James Smart4f774512009-05-22 14:52:35 -040012583{
12584 struct lpfc_hba *phba;
12585 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
12586 struct lpfc_queue *fpeq;
12587 struct lpfc_eqe *eqe;
12588 unsigned long iflag;
12589 int ecount = 0;
James Smart962bc512013-01-03 15:44:00 -050012590 int fcp_eqidx;
James Smart4f774512009-05-22 14:52:35 -040012591
12592 /* Get the driver's phba structure from the dev_id */
12593 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
12594 phba = fcp_eq_hdl->phba;
12595 fcp_eqidx = fcp_eq_hdl->idx;
12596
12597 if (unlikely(!phba))
12598 return IRQ_NONE;
James Smart67d12732012-08-03 12:36:13 -040012599 if (unlikely(!phba->sli4_hba.hba_eq))
James Smart5350d872011-10-10 21:33:49 -040012600 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040012601
12602 /* Get to the EQ struct associated with this vector */
James Smart67d12732012-08-03 12:36:13 -040012603 fpeq = phba->sli4_hba.hba_eq[fcp_eqidx];
James Smart2e90f4b2011-12-13 13:22:37 -050012604 if (unlikely(!fpeq))
12605 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040012606
James Smartba20c852012-08-03 12:36:52 -040012607 if (lpfc_fcp_look_ahead) {
12608 if (atomic_dec_and_test(&fcp_eq_hdl->fcp_eq_in_use))
12609 lpfc_sli4_eq_clr_intr(fpeq);
12610 else {
12611 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12612 return IRQ_NONE;
12613 }
12614 }
12615
James Smart4f774512009-05-22 14:52:35 -040012616 /* Check device state for handling interrupt */
12617 if (unlikely(lpfc_intr_state_check(phba))) {
James Smartb84daac2012-08-03 12:35:13 -040012618 fpeq->EQ_badstate++;
James Smart4f774512009-05-22 14:52:35 -040012619 /* Check again for link_state with lock held */
12620 spin_lock_irqsave(&phba->hbalock, iflag);
12621 if (phba->link_state < LPFC_LINK_DOWN)
12622 /* Flush, clear interrupt, and rearm the EQ */
12623 lpfc_sli4_eq_flush(phba, fpeq);
12624 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smartba20c852012-08-03 12:36:52 -040012625 if (lpfc_fcp_look_ahead)
12626 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
James Smart4f774512009-05-22 14:52:35 -040012627 return IRQ_NONE;
12628 }
12629
12630 /*
12631 * Process all the event on FCP fast-path EQ
12632 */
12633 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
James Smarteb016562014-09-03 12:58:06 -040012634 if (eqe == NULL)
12635 break;
12636
James Smart67d12732012-08-03 12:36:13 -040012637 lpfc_sli4_hba_handle_eqe(phba, eqe, fcp_eqidx);
James Smart73d91e52011-10-10 21:32:10 -040012638 if (!(++ecount % fpeq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040012639 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
James Smartb84daac2012-08-03 12:35:13 -040012640 fpeq->EQ_processed++;
James Smart4f774512009-05-22 14:52:35 -040012641 }
12642
James Smartb84daac2012-08-03 12:35:13 -040012643 /* Track the max number of EQEs processed in 1 intr */
12644 if (ecount > fpeq->EQ_max_eqe)
12645 fpeq->EQ_max_eqe = ecount;
12646
James Smart4f774512009-05-22 14:52:35 -040012647 /* Always clear and re-arm the fast-path EQ */
12648 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
12649
12650 if (unlikely(ecount == 0)) {
James Smartb84daac2012-08-03 12:35:13 -040012651 fpeq->EQ_no_entry++;
James Smartba20c852012-08-03 12:36:52 -040012652
12653 if (lpfc_fcp_look_ahead) {
12654 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
12655 return IRQ_NONE;
12656 }
12657
James Smart4f774512009-05-22 14:52:35 -040012658 if (phba->intr_type == MSIX)
12659 /* MSI-X treated interrupt served as no EQ share INT */
12660 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12661 "0358 MSI-X interrupt with no EQE\n");
12662 else
12663 /* Non MSI-X treated on interrupt as EQ share INT */
12664 return IRQ_NONE;
12665 }
12666
James Smartba20c852012-08-03 12:36:52 -040012667 if (lpfc_fcp_look_ahead)
12668 atomic_inc(&fcp_eq_hdl->fcp_eq_in_use);
James Smart4f774512009-05-22 14:52:35 -040012669 return IRQ_HANDLED;
12670} /* lpfc_sli4_fp_intr_handler */
12671
12672/**
12673 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12674 * @irq: Interrupt number.
12675 * @dev_id: The device context pointer.
12676 *
12677 * This function is the device-level interrupt handler to device with SLI-4
12678 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12679 * interrupt mode is enabled and there is an event in the HBA which requires
12680 * driver attention. This function invokes the slow-path interrupt attention
12681 * handling function and fast-path interrupt attention handling function in
12682 * turn to process the relevant HBA attention events. This function is called
12683 * without any lock held. It gets the hbalock to access and update SLI data
12684 * structures.
12685 *
12686 * This function returns IRQ_HANDLED when interrupt is handled, else it
12687 * returns IRQ_NONE.
12688 **/
12689irqreturn_t
12690lpfc_sli4_intr_handler(int irq, void *dev_id)
12691{
12692 struct lpfc_hba *phba;
James Smart67d12732012-08-03 12:36:13 -040012693 irqreturn_t hba_irq_rc;
12694 bool hba_handled = false;
James Smart962bc512013-01-03 15:44:00 -050012695 int fcp_eqidx;
James Smart4f774512009-05-22 14:52:35 -040012696
12697 /* Get the driver's phba structure from the dev_id */
12698 phba = (struct lpfc_hba *)dev_id;
12699
12700 if (unlikely(!phba))
12701 return IRQ_NONE;
12702
12703 /*
James Smart4f774512009-05-22 14:52:35 -040012704 * Invoke fast-path host attention interrupt handling as appropriate.
12705 */
James Smart67d12732012-08-03 12:36:13 -040012706 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel; fcp_eqidx++) {
12707 hba_irq_rc = lpfc_sli4_hba_intr_handler(irq,
James Smart4f774512009-05-22 14:52:35 -040012708 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
James Smart67d12732012-08-03 12:36:13 -040012709 if (hba_irq_rc == IRQ_HANDLED)
12710 hba_handled |= true;
James Smart4f774512009-05-22 14:52:35 -040012711 }
12712
James Smart1ba981f2014-02-20 09:56:45 -050012713 if (phba->cfg_fof) {
12714 hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
12715 &phba->sli4_hba.fcp_eq_hdl[0]);
12716 if (hba_irq_rc == IRQ_HANDLED)
12717 hba_handled |= true;
12718 }
12719
James Smart67d12732012-08-03 12:36:13 -040012720 return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040012721} /* lpfc_sli4_intr_handler */
12722
12723/**
12724 * lpfc_sli4_queue_free - free a queue structure and associated memory
12725 * @queue: The queue structure to free.
12726 *
Uwe Kleine-Königb5950762010-11-01 15:38:34 -040012727 * This function frees a queue structure and the DMAable memory used for
James Smart4f774512009-05-22 14:52:35 -040012728 * the host resident queue. This function must be called after destroying the
12729 * queue on the HBA.
12730 **/
12731void
12732lpfc_sli4_queue_free(struct lpfc_queue *queue)
12733{
12734 struct lpfc_dmabuf *dmabuf;
12735
12736 if (!queue)
12737 return;
12738
12739 while (!list_empty(&queue->page_list)) {
12740 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
12741 list);
James Smart49198b32010-04-06 15:04:33 -040012742 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
James Smart4f774512009-05-22 14:52:35 -040012743 dmabuf->virt, dmabuf->phys);
12744 kfree(dmabuf);
12745 }
12746 kfree(queue);
12747 return;
12748}
12749
12750/**
12751 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12752 * @phba: The HBA that this queue is being created on.
12753 * @entry_size: The size of each queue entry for this queue.
12754 * @entry count: The number of entries that this queue will handle.
12755 *
12756 * This function allocates a queue structure and the DMAable memory used for
12757 * the host resident queue. This function must be called before creating the
12758 * queue on the HBA.
12759 **/
12760struct lpfc_queue *
12761lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
12762 uint32_t entry_count)
12763{
12764 struct lpfc_queue *queue;
12765 struct lpfc_dmabuf *dmabuf;
12766 int x, total_qe_count;
12767 void *dma_pointer;
James Smartcb5172e2010-03-15 11:25:07 -040012768 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart4f774512009-05-22 14:52:35 -040012769
James Smartcb5172e2010-03-15 11:25:07 -040012770 if (!phba->sli4_hba.pc_sli4_params.supported)
12771 hw_page_size = SLI4_PAGE_SIZE;
12772
James Smart4f774512009-05-22 14:52:35 -040012773 queue = kzalloc(sizeof(struct lpfc_queue) +
12774 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
12775 if (!queue)
12776 return NULL;
James Smartcb5172e2010-03-15 11:25:07 -040012777 queue->page_count = (ALIGN(entry_size * entry_count,
12778 hw_page_size))/hw_page_size;
James Smart4f774512009-05-22 14:52:35 -040012779 INIT_LIST_HEAD(&queue->list);
12780 INIT_LIST_HEAD(&queue->page_list);
12781 INIT_LIST_HEAD(&queue->child_list);
12782 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
12783 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
12784 if (!dmabuf)
12785 goto out_fail;
Joe Perches1aee3832014-09-03 12:56:12 -040012786 dmabuf->virt = dma_zalloc_coherent(&phba->pcidev->dev,
12787 hw_page_size, &dmabuf->phys,
12788 GFP_KERNEL);
James Smart4f774512009-05-22 14:52:35 -040012789 if (!dmabuf->virt) {
12790 kfree(dmabuf);
12791 goto out_fail;
12792 }
12793 dmabuf->buffer_tag = x;
12794 list_add_tail(&dmabuf->list, &queue->page_list);
12795 /* initialize queue's entry array */
12796 dma_pointer = dmabuf->virt;
12797 for (; total_qe_count < entry_count &&
James Smartcb5172e2010-03-15 11:25:07 -040012798 dma_pointer < (hw_page_size + dmabuf->virt);
James Smart4f774512009-05-22 14:52:35 -040012799 total_qe_count++, dma_pointer += entry_size) {
12800 queue->qe[total_qe_count].address = dma_pointer;
12801 }
12802 }
12803 queue->entry_size = entry_size;
12804 queue->entry_count = entry_count;
James Smart73d91e52011-10-10 21:32:10 -040012805
12806 /*
12807 * entry_repost is calculated based on the number of entries in the
12808 * queue. This works out except for RQs. If buffers are NOT initially
12809 * posted for every RQE, entry_repost should be adjusted accordingly.
12810 */
12811 queue->entry_repost = (entry_count >> 3);
12812 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
12813 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
James Smart4f774512009-05-22 14:52:35 -040012814 queue->phba = phba;
12815
12816 return queue;
12817out_fail:
12818 lpfc_sli4_queue_free(queue);
12819 return NULL;
12820}
12821
12822/**
James Smart962bc512013-01-03 15:44:00 -050012823 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12824 * @phba: HBA structure that indicates port to create a queue on.
12825 * @pci_barset: PCI BAR set flag.
12826 *
12827 * This function shall perform iomap of the specified PCI BAR address to host
12828 * memory address if not already done so and return it. The returned host
12829 * memory address can be NULL.
12830 */
12831static void __iomem *
12832lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset)
12833{
12834 struct pci_dev *pdev;
James Smart962bc512013-01-03 15:44:00 -050012835
12836 if (!phba->pcidev)
12837 return NULL;
12838 else
12839 pdev = phba->pcidev;
12840
12841 switch (pci_barset) {
12842 case WQ_PCI_BAR_0_AND_1:
James Smart962bc512013-01-03 15:44:00 -050012843 return phba->pci_bar0_memmap_p;
12844 case WQ_PCI_BAR_2_AND_3:
James Smart962bc512013-01-03 15:44:00 -050012845 return phba->pci_bar2_memmap_p;
12846 case WQ_PCI_BAR_4_AND_5:
James Smart962bc512013-01-03 15:44:00 -050012847 return phba->pci_bar4_memmap_p;
12848 default:
12849 break;
12850 }
12851 return NULL;
12852}
12853
12854/**
James Smart173edbb2012-06-12 13:54:50 -040012855 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12856 * @phba: HBA structure that indicates port to create a queue on.
12857 * @startq: The starting FCP EQ to modify
12858 *
12859 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12860 *
12861 * The @phba struct is used to send mailbox command to HBA. The @startq
12862 * is used to get the starting FCP EQ to change.
12863 * This function is asynchronous and will wait for the mailbox
12864 * command to finish before continuing.
12865 *
12866 * On success this function will return a zero. If unable to allocate enough
12867 * memory this function will return -ENOMEM. If the queue create mailbox command
12868 * fails this function will return -ENXIO.
12869 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040012870int
James Smart2c9c5a02015-04-07 15:07:15 -040012871lpfc_modify_fcp_eq_delay(struct lpfc_hba *phba, uint32_t startq)
James Smart173edbb2012-06-12 13:54:50 -040012872{
12873 struct lpfc_mbx_modify_eq_delay *eq_delay;
12874 LPFC_MBOXQ_t *mbox;
12875 struct lpfc_queue *eq;
12876 int cnt, rc, length, status = 0;
12877 uint32_t shdr_status, shdr_add_status;
James Smartee020062012-09-29 11:28:52 -040012878 uint32_t result;
James Smart173edbb2012-06-12 13:54:50 -040012879 int fcp_eqidx;
12880 union lpfc_sli4_cfg_shdr *shdr;
12881 uint16_t dmult;
12882
James Smart67d12732012-08-03 12:36:13 -040012883 if (startq >= phba->cfg_fcp_io_channel)
James Smart173edbb2012-06-12 13:54:50 -040012884 return 0;
12885
12886 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12887 if (!mbox)
12888 return -ENOMEM;
12889 length = (sizeof(struct lpfc_mbx_modify_eq_delay) -
12890 sizeof(struct lpfc_sli4_cfg_mhdr));
12891 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12892 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY,
12893 length, LPFC_SLI4_MBX_EMBED);
12894 eq_delay = &mbox->u.mqe.un.eq_delay;
12895
12896 /* Calculate delay multiper from maximum interrupt per second */
James Smartee020062012-09-29 11:28:52 -040012897 result = phba->cfg_fcp_imax / phba->cfg_fcp_io_channel;
12898 if (result > LPFC_DMULT_CONST)
12899 dmult = 0;
12900 else
12901 dmult = LPFC_DMULT_CONST/result - 1;
James Smart173edbb2012-06-12 13:54:50 -040012902
12903 cnt = 0;
James Smart67d12732012-08-03 12:36:13 -040012904 for (fcp_eqidx = startq; fcp_eqidx < phba->cfg_fcp_io_channel;
James Smart173edbb2012-06-12 13:54:50 -040012905 fcp_eqidx++) {
James Smart67d12732012-08-03 12:36:13 -040012906 eq = phba->sli4_hba.hba_eq[fcp_eqidx];
James Smart173edbb2012-06-12 13:54:50 -040012907 if (!eq)
12908 continue;
12909 eq_delay->u.request.eq[cnt].eq_id = eq->queue_id;
12910 eq_delay->u.request.eq[cnt].phase = 0;
12911 eq_delay->u.request.eq[cnt].delay_multi = dmult;
12912 cnt++;
12913 if (cnt >= LPFC_MAX_EQ_DELAY)
12914 break;
12915 }
12916 eq_delay->u.request.num_eq = cnt;
12917
12918 mbox->vport = phba->pport;
12919 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12920 mbox->context1 = NULL;
12921 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12922 shdr = (union lpfc_sli4_cfg_shdr *) &eq_delay->header.cfg_shdr;
12923 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12924 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12925 if (shdr_status || shdr_add_status || rc) {
12926 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12927 "2512 MODIFY_EQ_DELAY mailbox failed with "
12928 "status x%x add_status x%x, mbx status x%x\n",
12929 shdr_status, shdr_add_status, rc);
12930 status = -ENXIO;
12931 }
12932 mempool_free(mbox, phba->mbox_mem_pool);
12933 return status;
12934}
12935
12936/**
James Smart4f774512009-05-22 14:52:35 -040012937 * lpfc_eq_create - Create an Event Queue on the HBA
12938 * @phba: HBA structure that indicates port to create a queue on.
12939 * @eq: The queue structure to use to create the event queue.
12940 * @imax: The maximum interrupt per second limit.
12941 *
12942 * This function creates an event queue, as detailed in @eq, on a port,
12943 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12944 *
12945 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12946 * is used to get the entry count and entry size that are necessary to
12947 * determine the number of pages to allocate and use for this queue. This
12948 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12949 * event queue. This function is asynchronous and will wait for the mailbox
12950 * command to finish before continuing.
12951 *
12952 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040012953 * memory this function will return -ENOMEM. If the queue create mailbox command
12954 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012955 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040012956int
James Smartee020062012-09-29 11:28:52 -040012957lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint32_t imax)
James Smart4f774512009-05-22 14:52:35 -040012958{
12959 struct lpfc_mbx_eq_create *eq_create;
12960 LPFC_MBOXQ_t *mbox;
12961 int rc, length, status = 0;
12962 struct lpfc_dmabuf *dmabuf;
12963 uint32_t shdr_status, shdr_add_status;
12964 union lpfc_sli4_cfg_shdr *shdr;
12965 uint16_t dmult;
James Smart49198b32010-04-06 15:04:33 -040012966 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12967
James Smart2e90f4b2011-12-13 13:22:37 -050012968 /* sanity check on queue memory */
12969 if (!eq)
12970 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040012971 if (!phba->sli4_hba.pc_sli4_params.supported)
12972 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040012973
12974 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12975 if (!mbox)
12976 return -ENOMEM;
12977 length = (sizeof(struct lpfc_mbx_eq_create) -
12978 sizeof(struct lpfc_sli4_cfg_mhdr));
12979 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12980 LPFC_MBOX_OPCODE_EQ_CREATE,
12981 length, LPFC_SLI4_MBX_EMBED);
12982 eq_create = &mbox->u.mqe.un.eq_create;
12983 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
12984 eq->page_count);
12985 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
12986 LPFC_EQE_SIZE);
12987 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
James Smart2c9c5a02015-04-07 15:07:15 -040012988 /* don't setup delay multiplier using EQ_CREATE */
12989 dmult = 0;
James Smart4f774512009-05-22 14:52:35 -040012990 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
12991 dmult);
12992 switch (eq->entry_count) {
12993 default:
12994 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12995 "0360 Unsupported EQ count. (%d)\n",
12996 eq->entry_count);
12997 if (eq->entry_count < 256)
12998 return -EINVAL;
12999 /* otherwise default to smallest count (drop through) */
13000 case 256:
13001 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13002 LPFC_EQ_CNT_256);
13003 break;
13004 case 512:
13005 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13006 LPFC_EQ_CNT_512);
13007 break;
13008 case 1024:
13009 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13010 LPFC_EQ_CNT_1024);
13011 break;
13012 case 2048:
13013 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13014 LPFC_EQ_CNT_2048);
13015 break;
13016 case 4096:
13017 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
13018 LPFC_EQ_CNT_4096);
13019 break;
13020 }
13021 list_for_each_entry(dmabuf, &eq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040013022 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040013023 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13024 putPaddrLow(dmabuf->phys);
13025 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13026 putPaddrHigh(dmabuf->phys);
13027 }
13028 mbox->vport = phba->pport;
13029 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13030 mbox->context1 = NULL;
13031 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13032 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
13033 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13034 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13035 if (shdr_status || shdr_add_status || rc) {
13036 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13037 "2500 EQ_CREATE mailbox failed with "
13038 "status x%x add_status x%x, mbx status x%x\n",
13039 shdr_status, shdr_add_status, rc);
13040 status = -ENXIO;
13041 }
13042 eq->type = LPFC_EQ;
13043 eq->subtype = LPFC_NONE;
13044 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
13045 if (eq->queue_id == 0xFFFF)
13046 status = -ENXIO;
13047 eq->host_index = 0;
13048 eq->hba_index = 0;
13049
James Smart8fa38512009-07-19 10:01:03 -040013050 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040013051 return status;
13052}
13053
13054/**
13055 * lpfc_cq_create - Create a Completion Queue on the HBA
13056 * @phba: HBA structure that indicates port to create a queue on.
13057 * @cq: The queue structure to use to create the completion queue.
13058 * @eq: The event queue to bind this completion queue to.
13059 *
13060 * This function creates a completion queue, as detailed in @wq, on a port,
13061 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13062 *
13063 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13064 * is used to get the entry count and entry size that are necessary to
13065 * determine the number of pages to allocate and use for this queue. The @eq
13066 * is used to indicate which event queue to bind this completion queue to. This
13067 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13068 * completion queue. This function is asynchronous and will wait for the mailbox
13069 * command to finish before continuing.
13070 *
13071 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040013072 * memory this function will return -ENOMEM. If the queue create mailbox command
13073 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040013074 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040013075int
James Smart4f774512009-05-22 14:52:35 -040013076lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
13077 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
13078{
13079 struct lpfc_mbx_cq_create *cq_create;
13080 struct lpfc_dmabuf *dmabuf;
13081 LPFC_MBOXQ_t *mbox;
13082 int rc, length, status = 0;
13083 uint32_t shdr_status, shdr_add_status;
13084 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040013085 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
13086
James Smart2e90f4b2011-12-13 13:22:37 -050013087 /* sanity check on queue memory */
13088 if (!cq || !eq)
13089 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040013090 if (!phba->sli4_hba.pc_sli4_params.supported)
13091 hw_page_size = SLI4_PAGE_SIZE;
13092
James Smart4f774512009-05-22 14:52:35 -040013093 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13094 if (!mbox)
13095 return -ENOMEM;
13096 length = (sizeof(struct lpfc_mbx_cq_create) -
13097 sizeof(struct lpfc_sli4_cfg_mhdr));
13098 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13099 LPFC_MBOX_OPCODE_CQ_CREATE,
13100 length, LPFC_SLI4_MBX_EMBED);
13101 cq_create = &mbox->u.mqe.un.cq_create;
James Smart5a6f1332011-03-11 16:05:35 -050013102 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040013103 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
13104 cq->page_count);
13105 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
13106 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050013107 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13108 phba->sli4_hba.pc_sli4_params.cqv);
13109 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
James Smartc31098c2011-04-16 11:03:33 -040013110 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13111 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
James Smart5a6f1332011-03-11 16:05:35 -050013112 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
13113 eq->queue_id);
13114 } else {
13115 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
13116 eq->queue_id);
13117 }
James Smart4f774512009-05-22 14:52:35 -040013118 switch (cq->entry_count) {
13119 default:
13120 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13121 "0361 Unsupported CQ count. (%d)\n",
13122 cq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040013123 if (cq->entry_count < 256) {
13124 status = -EINVAL;
13125 goto out;
13126 }
James Smart4f774512009-05-22 14:52:35 -040013127 /* otherwise default to smallest count (drop through) */
13128 case 256:
13129 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13130 LPFC_CQ_CNT_256);
13131 break;
13132 case 512:
13133 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13134 LPFC_CQ_CNT_512);
13135 break;
13136 case 1024:
13137 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
13138 LPFC_CQ_CNT_1024);
13139 break;
13140 }
13141 list_for_each_entry(dmabuf, &cq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040013142 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040013143 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13144 putPaddrLow(dmabuf->phys);
13145 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13146 putPaddrHigh(dmabuf->phys);
13147 }
13148 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13149
13150 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040013151 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13152 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13153 if (shdr_status || shdr_add_status || rc) {
13154 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13155 "2501 CQ_CREATE mailbox failed with "
13156 "status x%x add_status x%x, mbx status x%x\n",
13157 shdr_status, shdr_add_status, rc);
13158 status = -ENXIO;
13159 goto out;
13160 }
13161 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
13162 if (cq->queue_id == 0xFFFF) {
13163 status = -ENXIO;
13164 goto out;
13165 }
13166 /* link the cq onto the parent eq child list */
13167 list_add_tail(&cq->list, &eq->child_list);
13168 /* Set up completion queue's type and subtype */
13169 cq->type = type;
13170 cq->subtype = subtype;
13171 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
James Smart2a622bf2011-02-16 12:40:06 -050013172 cq->assoc_qid = eq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040013173 cq->host_index = 0;
13174 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -040013175
James Smart8fa38512009-07-19 10:01:03 -040013176out:
13177 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040013178 return status;
13179}
13180
13181/**
James Smartb19a0612010-04-06 14:48:51 -040013182 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
James Smart04c68492009-05-22 14:52:52 -040013183 * @phba: HBA structure that indicates port to create a queue on.
13184 * @mq: The queue structure to use to create the mailbox queue.
James Smartb19a0612010-04-06 14:48:51 -040013185 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13186 * @cq: The completion queue to associate with this cq.
James Smart04c68492009-05-22 14:52:52 -040013187 *
James Smartb19a0612010-04-06 14:48:51 -040013188 * This function provides failback (fb) functionality when the
13189 * mq_create_ext fails on older FW generations. It's purpose is identical
13190 * to mq_create_ext otherwise.
James Smart04c68492009-05-22 14:52:52 -040013191 *
James Smartb19a0612010-04-06 14:48:51 -040013192 * This routine cannot fail as all attributes were previously accessed and
13193 * initialized in mq_create_ext.
James Smart04c68492009-05-22 14:52:52 -040013194 **/
James Smartb19a0612010-04-06 14:48:51 -040013195static void
13196lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
13197 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
James Smart04c68492009-05-22 14:52:52 -040013198{
13199 struct lpfc_mbx_mq_create *mq_create;
13200 struct lpfc_dmabuf *dmabuf;
James Smartb19a0612010-04-06 14:48:51 -040013201 int length;
James Smart04c68492009-05-22 14:52:52 -040013202
James Smart04c68492009-05-22 14:52:52 -040013203 length = (sizeof(struct lpfc_mbx_mq_create) -
13204 sizeof(struct lpfc_sli4_cfg_mhdr));
13205 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13206 LPFC_MBOX_OPCODE_MQ_CREATE,
13207 length, LPFC_SLI4_MBX_EMBED);
13208 mq_create = &mbox->u.mqe.un.mq_create;
13209 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
James Smartb19a0612010-04-06 14:48:51 -040013210 mq->page_count);
James Smart04c68492009-05-22 14:52:52 -040013211 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
James Smartb19a0612010-04-06 14:48:51 -040013212 cq->queue_id);
James Smart04c68492009-05-22 14:52:52 -040013213 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
13214 switch (mq->entry_count) {
James Smart04c68492009-05-22 14:52:52 -040013215 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050013216 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13217 LPFC_MQ_RING_SIZE_16);
James Smart04c68492009-05-22 14:52:52 -040013218 break;
13219 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050013220 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13221 LPFC_MQ_RING_SIZE_32);
James Smart04c68492009-05-22 14:52:52 -040013222 break;
13223 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050013224 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13225 LPFC_MQ_RING_SIZE_64);
James Smart04c68492009-05-22 14:52:52 -040013226 break;
13227 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050013228 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
13229 LPFC_MQ_RING_SIZE_128);
James Smart04c68492009-05-22 14:52:52 -040013230 break;
13231 }
13232 list_for_each_entry(dmabuf, &mq->page_list, list) {
13233 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
James Smartb19a0612010-04-06 14:48:51 -040013234 putPaddrLow(dmabuf->phys);
James Smart04c68492009-05-22 14:52:52 -040013235 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smartb19a0612010-04-06 14:48:51 -040013236 putPaddrHigh(dmabuf->phys);
13237 }
13238}
13239
13240/**
13241 * lpfc_mq_create - Create a mailbox Queue on the HBA
13242 * @phba: HBA structure that indicates port to create a queue on.
13243 * @mq: The queue structure to use to create the mailbox queue.
13244 * @cq: The completion queue to associate with this cq.
13245 * @subtype: The queue's subtype.
13246 *
13247 * This function creates a mailbox queue, as detailed in @mq, on a port,
13248 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13249 *
13250 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13251 * is used to get the entry count and entry size that are necessary to
13252 * determine the number of pages to allocate and use for this queue. This
13253 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13254 * mailbox queue. This function is asynchronous and will wait for the mailbox
13255 * command to finish before continuing.
13256 *
13257 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040013258 * memory this function will return -ENOMEM. If the queue create mailbox command
13259 * fails this function will return -ENXIO.
James Smartb19a0612010-04-06 14:48:51 -040013260 **/
13261int32_t
13262lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
13263 struct lpfc_queue *cq, uint32_t subtype)
13264{
13265 struct lpfc_mbx_mq_create *mq_create;
13266 struct lpfc_mbx_mq_create_ext *mq_create_ext;
13267 struct lpfc_dmabuf *dmabuf;
13268 LPFC_MBOXQ_t *mbox;
13269 int rc, length, status = 0;
13270 uint32_t shdr_status, shdr_add_status;
13271 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040013272 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smartb19a0612010-04-06 14:48:51 -040013273
James Smart2e90f4b2011-12-13 13:22:37 -050013274 /* sanity check on queue memory */
13275 if (!mq || !cq)
13276 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040013277 if (!phba->sli4_hba.pc_sli4_params.supported)
13278 hw_page_size = SLI4_PAGE_SIZE;
James Smartb19a0612010-04-06 14:48:51 -040013279
13280 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13281 if (!mbox)
13282 return -ENOMEM;
13283 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
13284 sizeof(struct lpfc_sli4_cfg_mhdr));
13285 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13286 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
13287 length, LPFC_SLI4_MBX_EMBED);
13288
13289 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
James Smart5a6f1332011-03-11 16:05:35 -050013290 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
James Smart70f3c072010-12-15 17:57:33 -050013291 bf_set(lpfc_mbx_mq_create_ext_num_pages,
13292 &mq_create_ext->u.request, mq->page_count);
13293 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
13294 &mq_create_ext->u.request, 1);
13295 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
James Smartb19a0612010-04-06 14:48:51 -040013296 &mq_create_ext->u.request, 1);
13297 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
13298 &mq_create_ext->u.request, 1);
James Smart70f3c072010-12-15 17:57:33 -050013299 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
13300 &mq_create_ext->u.request, 1);
13301 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
13302 &mq_create_ext->u.request, 1);
James Smartb19a0612010-04-06 14:48:51 -040013303 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050013304 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13305 phba->sli4_hba.pc_sli4_params.mqv);
13306 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
13307 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
13308 cq->queue_id);
13309 else
13310 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
13311 cq->queue_id);
James Smartb19a0612010-04-06 14:48:51 -040013312 switch (mq->entry_count) {
13313 default:
13314 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13315 "0362 Unsupported MQ count. (%d)\n",
13316 mq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040013317 if (mq->entry_count < 16) {
13318 status = -EINVAL;
13319 goto out;
13320 }
James Smartb19a0612010-04-06 14:48:51 -040013321 /* otherwise default to smallest count (drop through) */
13322 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050013323 bf_set(lpfc_mq_context_ring_size,
13324 &mq_create_ext->u.request.context,
13325 LPFC_MQ_RING_SIZE_16);
James Smartb19a0612010-04-06 14:48:51 -040013326 break;
13327 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050013328 bf_set(lpfc_mq_context_ring_size,
13329 &mq_create_ext->u.request.context,
13330 LPFC_MQ_RING_SIZE_32);
James Smartb19a0612010-04-06 14:48:51 -040013331 break;
13332 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050013333 bf_set(lpfc_mq_context_ring_size,
13334 &mq_create_ext->u.request.context,
13335 LPFC_MQ_RING_SIZE_64);
James Smartb19a0612010-04-06 14:48:51 -040013336 break;
13337 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050013338 bf_set(lpfc_mq_context_ring_size,
13339 &mq_create_ext->u.request.context,
13340 LPFC_MQ_RING_SIZE_128);
James Smartb19a0612010-04-06 14:48:51 -040013341 break;
13342 }
13343 list_for_each_entry(dmabuf, &mq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040013344 memset(dmabuf->virt, 0, hw_page_size);
James Smartb19a0612010-04-06 14:48:51 -040013345 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
13346 putPaddrLow(dmabuf->phys);
13347 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smart04c68492009-05-22 14:52:52 -040013348 putPaddrHigh(dmabuf->phys);
13349 }
13350 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smartb19a0612010-04-06 14:48:51 -040013351 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13352 &mq_create_ext->u.response);
13353 if (rc != MBX_SUCCESS) {
13354 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13355 "2795 MQ_CREATE_EXT failed with "
13356 "status x%x. Failback to MQ_CREATE.\n",
13357 rc);
13358 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
13359 mq_create = &mbox->u.mqe.un.mq_create;
13360 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13361 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
13362 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
13363 &mq_create->u.response);
13364 }
13365
James Smart04c68492009-05-22 14:52:52 -040013366 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart04c68492009-05-22 14:52:52 -040013367 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13368 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13369 if (shdr_status || shdr_add_status || rc) {
13370 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13371 "2502 MQ_CREATE mailbox failed with "
13372 "status x%x add_status x%x, mbx status x%x\n",
13373 shdr_status, shdr_add_status, rc);
13374 status = -ENXIO;
13375 goto out;
13376 }
James Smart04c68492009-05-22 14:52:52 -040013377 if (mq->queue_id == 0xFFFF) {
13378 status = -ENXIO;
13379 goto out;
13380 }
13381 mq->type = LPFC_MQ;
James Smart2a622bf2011-02-16 12:40:06 -050013382 mq->assoc_qid = cq->queue_id;
James Smart04c68492009-05-22 14:52:52 -040013383 mq->subtype = subtype;
13384 mq->host_index = 0;
13385 mq->hba_index = 0;
13386
13387 /* link the mq onto the parent cq child list */
13388 list_add_tail(&mq->list, &cq->child_list);
13389out:
James Smart8fa38512009-07-19 10:01:03 -040013390 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040013391 return status;
13392}
13393
13394/**
James Smart4f774512009-05-22 14:52:35 -040013395 * lpfc_wq_create - Create a Work Queue on the HBA
13396 * @phba: HBA structure that indicates port to create a queue on.
13397 * @wq: The queue structure to use to create the work queue.
13398 * @cq: The completion queue to bind this work queue to.
13399 * @subtype: The subtype of the work queue indicating its functionality.
13400 *
13401 * This function creates a work queue, as detailed in @wq, on a port, described
13402 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13403 *
13404 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13405 * is used to get the entry count and entry size that are necessary to
13406 * determine the number of pages to allocate and use for this queue. The @cq
13407 * is used to indicate which completion queue to bind this work queue to. This
13408 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13409 * work queue. This function is asynchronous and will wait for the mailbox
13410 * command to finish before continuing.
13411 *
13412 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040013413 * memory this function will return -ENOMEM. If the queue create mailbox command
13414 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040013415 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040013416int
James Smart4f774512009-05-22 14:52:35 -040013417lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
13418 struct lpfc_queue *cq, uint32_t subtype)
13419{
13420 struct lpfc_mbx_wq_create *wq_create;
13421 struct lpfc_dmabuf *dmabuf;
13422 LPFC_MBOXQ_t *mbox;
13423 int rc, length, status = 0;
13424 uint32_t shdr_status, shdr_add_status;
13425 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040013426 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart5a6f1332011-03-11 16:05:35 -050013427 struct dma_address *page;
James Smart962bc512013-01-03 15:44:00 -050013428 void __iomem *bar_memmap_p;
13429 uint32_t db_offset;
13430 uint16_t pci_barset;
James Smart49198b32010-04-06 15:04:33 -040013431
James Smart2e90f4b2011-12-13 13:22:37 -050013432 /* sanity check on queue memory */
13433 if (!wq || !cq)
13434 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040013435 if (!phba->sli4_hba.pc_sli4_params.supported)
13436 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040013437
13438 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13439 if (!mbox)
13440 return -ENOMEM;
13441 length = (sizeof(struct lpfc_mbx_wq_create) -
13442 sizeof(struct lpfc_sli4_cfg_mhdr));
13443 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13444 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
13445 length, LPFC_SLI4_MBX_EMBED);
13446 wq_create = &mbox->u.mqe.un.wq_create;
James Smart5a6f1332011-03-11 16:05:35 -050013447 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040013448 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
13449 wq->page_count);
13450 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
13451 cq->queue_id);
James Smart0c651872013-07-15 18:33:23 -040013452
13453 /* wqv is the earliest version supported, NOT the latest */
James Smart5a6f1332011-03-11 16:05:35 -050013454 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13455 phba->sli4_hba.pc_sli4_params.wqv);
James Smart962bc512013-01-03 15:44:00 -050013456
James Smart0c651872013-07-15 18:33:23 -040013457 switch (phba->sli4_hba.pc_sli4_params.wqv) {
13458 case LPFC_Q_CREATE_VERSION_0:
13459 switch (wq->entry_size) {
13460 default:
13461 case 64:
13462 /* Nothing to do, version 0 ONLY supports 64 byte */
13463 page = wq_create->u.request.page;
13464 break;
13465 case 128:
13466 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13467 LPFC_WQ_SZ128_SUPPORT)) {
13468 status = -ERANGE;
13469 goto out;
13470 }
13471 /* If we get here the HBA MUST also support V1 and
13472 * we MUST use it
13473 */
13474 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13475 LPFC_Q_CREATE_VERSION_1);
13476
13477 bf_set(lpfc_mbx_wq_create_wqe_count,
13478 &wq_create->u.request_1, wq->entry_count);
13479 bf_set(lpfc_mbx_wq_create_wqe_size,
13480 &wq_create->u.request_1,
13481 LPFC_WQ_WQE_SIZE_128);
13482 bf_set(lpfc_mbx_wq_create_page_size,
13483 &wq_create->u.request_1,
13484 (PAGE_SIZE/SLI4_PAGE_SIZE));
13485 page = wq_create->u.request_1.page;
13486 break;
13487 }
13488 break;
13489 case LPFC_Q_CREATE_VERSION_1:
James Smart5a6f1332011-03-11 16:05:35 -050013490 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
13491 wq->entry_count);
13492 switch (wq->entry_size) {
13493 default:
13494 case 64:
13495 bf_set(lpfc_mbx_wq_create_wqe_size,
13496 &wq_create->u.request_1,
13497 LPFC_WQ_WQE_SIZE_64);
13498 break;
13499 case 128:
James Smart0c651872013-07-15 18:33:23 -040013500 if (!(phba->sli4_hba.pc_sli4_params.wqsize &
13501 LPFC_WQ_SZ128_SUPPORT)) {
13502 status = -ERANGE;
13503 goto out;
13504 }
James Smart5a6f1332011-03-11 16:05:35 -050013505 bf_set(lpfc_mbx_wq_create_wqe_size,
13506 &wq_create->u.request_1,
13507 LPFC_WQ_WQE_SIZE_128);
13508 break;
13509 }
13510 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
13511 (PAGE_SIZE/SLI4_PAGE_SIZE));
13512 page = wq_create->u.request_1.page;
James Smart0c651872013-07-15 18:33:23 -040013513 break;
13514 default:
13515 status = -ERANGE;
13516 goto out;
James Smart5a6f1332011-03-11 16:05:35 -050013517 }
James Smart0c651872013-07-15 18:33:23 -040013518
James Smart4f774512009-05-22 14:52:35 -040013519 list_for_each_entry(dmabuf, &wq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040013520 memset(dmabuf->virt, 0, hw_page_size);
James Smart5a6f1332011-03-11 16:05:35 -050013521 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
13522 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
James Smart4f774512009-05-22 14:52:35 -040013523 }
James Smart962bc512013-01-03 15:44:00 -050013524
13525 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13526 bf_set(lpfc_mbx_wq_create_dua, &wq_create->u.request, 1);
13527
James Smart4f774512009-05-22 14:52:35 -040013528 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13529 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040013530 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13531 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13532 if (shdr_status || shdr_add_status || rc) {
13533 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13534 "2503 WQ_CREATE mailbox failed with "
13535 "status x%x add_status x%x, mbx status x%x\n",
13536 shdr_status, shdr_add_status, rc);
13537 status = -ENXIO;
13538 goto out;
13539 }
13540 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
13541 if (wq->queue_id == 0xFFFF) {
13542 status = -ENXIO;
13543 goto out;
13544 }
James Smart962bc512013-01-03 15:44:00 -050013545 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13546 wq->db_format = bf_get(lpfc_mbx_wq_create_db_format,
13547 &wq_create->u.response);
13548 if ((wq->db_format != LPFC_DB_LIST_FORMAT) &&
13549 (wq->db_format != LPFC_DB_RING_FORMAT)) {
13550 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13551 "3265 WQ[%d] doorbell format not "
13552 "supported: x%x\n", wq->queue_id,
13553 wq->db_format);
13554 status = -EINVAL;
13555 goto out;
13556 }
13557 pci_barset = bf_get(lpfc_mbx_wq_create_bar_set,
13558 &wq_create->u.response);
13559 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13560 if (!bar_memmap_p) {
13561 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13562 "3263 WQ[%d] failed to memmap pci "
13563 "barset:x%x\n", wq->queue_id,
13564 pci_barset);
13565 status = -ENOMEM;
13566 goto out;
13567 }
13568 db_offset = wq_create->u.response.doorbell_offset;
13569 if ((db_offset != LPFC_ULP0_WQ_DOORBELL) &&
13570 (db_offset != LPFC_ULP1_WQ_DOORBELL)) {
13571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13572 "3252 WQ[%d] doorbell offset not "
13573 "supported: x%x\n", wq->queue_id,
13574 db_offset);
13575 status = -EINVAL;
13576 goto out;
13577 }
13578 wq->db_regaddr = bar_memmap_p + db_offset;
13579 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarta22e7db2013-04-17 20:16:37 -040013580 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13581 "format:x%x\n", wq->queue_id, pci_barset,
13582 db_offset, wq->db_format);
James Smart962bc512013-01-03 15:44:00 -050013583 } else {
13584 wq->db_format = LPFC_DB_LIST_FORMAT;
13585 wq->db_regaddr = phba->sli4_hba.WQDBregaddr;
13586 }
James Smart4f774512009-05-22 14:52:35 -040013587 wq->type = LPFC_WQ;
James Smart2a622bf2011-02-16 12:40:06 -050013588 wq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040013589 wq->subtype = subtype;
13590 wq->host_index = 0;
13591 wq->hba_index = 0;
James Smartff78d8f2011-12-13 13:21:35 -050013592 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
James Smart4f774512009-05-22 14:52:35 -040013593
13594 /* link the wq onto the parent cq child list */
13595 list_add_tail(&wq->list, &cq->child_list);
13596out:
James Smart8fa38512009-07-19 10:01:03 -040013597 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040013598 return status;
13599}
13600
13601/**
James Smart73d91e52011-10-10 21:32:10 -040013602 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13603 * @phba: HBA structure that indicates port to create a queue on.
13604 * @rq: The queue structure to use for the receive queue.
13605 * @qno: The associated HBQ number
13606 *
13607 *
13608 * For SLI4 we need to adjust the RQ repost value based on
13609 * the number of buffers that are initially posted to the RQ.
13610 */
13611void
13612lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
13613{
13614 uint32_t cnt;
13615
James Smart2e90f4b2011-12-13 13:22:37 -050013616 /* sanity check on queue memory */
13617 if (!rq)
13618 return;
James Smart73d91e52011-10-10 21:32:10 -040013619 cnt = lpfc_hbq_defs[qno]->entry_count;
13620
13621 /* Recalc repost for RQs based on buffers initially posted */
13622 cnt = (cnt >> 3);
13623 if (cnt < LPFC_QUEUE_MIN_REPOST)
13624 cnt = LPFC_QUEUE_MIN_REPOST;
13625
13626 rq->entry_repost = cnt;
13627}
13628
13629/**
James Smart4f774512009-05-22 14:52:35 -040013630 * lpfc_rq_create - Create a Receive Queue on the HBA
13631 * @phba: HBA structure that indicates port to create a queue on.
13632 * @hrq: The queue structure to use to create the header receive queue.
13633 * @drq: The queue structure to use to create the data receive queue.
13634 * @cq: The completion queue to bind this work queue to.
13635 *
13636 * This function creates a receive buffer queue pair , as detailed in @hrq and
13637 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13638 * to the HBA.
13639 *
13640 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13641 * struct is used to get the entry count that is necessary to determine the
13642 * number of pages to use for this queue. The @cq is used to indicate which
13643 * completion queue to bind received buffers that are posted to these queues to.
13644 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13645 * receive queue pair. This function is asynchronous and will wait for the
13646 * mailbox command to finish before continuing.
13647 *
13648 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040013649 * memory this function will return -ENOMEM. If the queue create mailbox command
13650 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040013651 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040013652int
James Smart4f774512009-05-22 14:52:35 -040013653lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
13654 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
13655{
13656 struct lpfc_mbx_rq_create *rq_create;
13657 struct lpfc_dmabuf *dmabuf;
13658 LPFC_MBOXQ_t *mbox;
13659 int rc, length, status = 0;
13660 uint32_t shdr_status, shdr_add_status;
13661 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040013662 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart962bc512013-01-03 15:44:00 -050013663 void __iomem *bar_memmap_p;
13664 uint32_t db_offset;
13665 uint16_t pci_barset;
James Smart49198b32010-04-06 15:04:33 -040013666
James Smart2e90f4b2011-12-13 13:22:37 -050013667 /* sanity check on queue memory */
13668 if (!hrq || !drq || !cq)
13669 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040013670 if (!phba->sli4_hba.pc_sli4_params.supported)
13671 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040013672
13673 if (hrq->entry_count != drq->entry_count)
13674 return -EINVAL;
13675 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13676 if (!mbox)
13677 return -ENOMEM;
13678 length = (sizeof(struct lpfc_mbx_rq_create) -
13679 sizeof(struct lpfc_sli4_cfg_mhdr));
13680 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13681 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13682 length, LPFC_SLI4_MBX_EMBED);
13683 rq_create = &mbox->u.mqe.un.rq_create;
James Smart5a6f1332011-03-11 16:05:35 -050013684 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13685 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13686 phba->sli4_hba.pc_sli4_params.rqv);
13687 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13688 bf_set(lpfc_rq_context_rqe_count_1,
13689 &rq_create->u.request.context,
13690 hrq->entry_count);
13691 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040013692 bf_set(lpfc_rq_context_rqe_size,
13693 &rq_create->u.request.context,
13694 LPFC_RQE_SIZE_8);
13695 bf_set(lpfc_rq_context_page_size,
13696 &rq_create->u.request.context,
13697 (PAGE_SIZE/SLI4_PAGE_SIZE));
James Smart5a6f1332011-03-11 16:05:35 -050013698 } else {
13699 switch (hrq->entry_count) {
13700 default:
13701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13702 "2535 Unsupported RQ count. (%d)\n",
13703 hrq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040013704 if (hrq->entry_count < 512) {
13705 status = -EINVAL;
13706 goto out;
13707 }
James Smart5a6f1332011-03-11 16:05:35 -050013708 /* otherwise default to smallest count (drop through) */
13709 case 512:
13710 bf_set(lpfc_rq_context_rqe_count,
13711 &rq_create->u.request.context,
13712 LPFC_RQ_RING_SIZE_512);
13713 break;
13714 case 1024:
13715 bf_set(lpfc_rq_context_rqe_count,
13716 &rq_create->u.request.context,
13717 LPFC_RQ_RING_SIZE_1024);
13718 break;
13719 case 2048:
13720 bf_set(lpfc_rq_context_rqe_count,
13721 &rq_create->u.request.context,
13722 LPFC_RQ_RING_SIZE_2048);
13723 break;
13724 case 4096:
13725 bf_set(lpfc_rq_context_rqe_count,
13726 &rq_create->u.request.context,
13727 LPFC_RQ_RING_SIZE_4096);
13728 break;
13729 }
13730 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13731 LPFC_HDR_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040013732 }
13733 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13734 cq->queue_id);
13735 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13736 hrq->page_count);
James Smart4f774512009-05-22 14:52:35 -040013737 list_for_each_entry(dmabuf, &hrq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040013738 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040013739 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13740 putPaddrLow(dmabuf->phys);
13741 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13742 putPaddrHigh(dmabuf->phys);
13743 }
James Smart962bc512013-01-03 15:44:00 -050013744 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13745 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
13746
James Smart4f774512009-05-22 14:52:35 -040013747 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13748 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040013749 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13750 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13751 if (shdr_status || shdr_add_status || rc) {
13752 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13753 "2504 RQ_CREATE mailbox failed with "
13754 "status x%x add_status x%x, mbx status x%x\n",
13755 shdr_status, shdr_add_status, rc);
13756 status = -ENXIO;
13757 goto out;
13758 }
13759 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13760 if (hrq->queue_id == 0xFFFF) {
13761 status = -ENXIO;
13762 goto out;
13763 }
James Smart962bc512013-01-03 15:44:00 -050013764
13765 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE) {
13766 hrq->db_format = bf_get(lpfc_mbx_rq_create_db_format,
13767 &rq_create->u.response);
13768 if ((hrq->db_format != LPFC_DB_LIST_FORMAT) &&
13769 (hrq->db_format != LPFC_DB_RING_FORMAT)) {
13770 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13771 "3262 RQ [%d] doorbell format not "
13772 "supported: x%x\n", hrq->queue_id,
13773 hrq->db_format);
13774 status = -EINVAL;
13775 goto out;
13776 }
13777
13778 pci_barset = bf_get(lpfc_mbx_rq_create_bar_set,
13779 &rq_create->u.response);
13780 bar_memmap_p = lpfc_dual_chute_pci_bar_map(phba, pci_barset);
13781 if (!bar_memmap_p) {
13782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13783 "3269 RQ[%d] failed to memmap pci "
13784 "barset:x%x\n", hrq->queue_id,
13785 pci_barset);
13786 status = -ENOMEM;
13787 goto out;
13788 }
13789
13790 db_offset = rq_create->u.response.doorbell_offset;
13791 if ((db_offset != LPFC_ULP0_RQ_DOORBELL) &&
13792 (db_offset != LPFC_ULP1_RQ_DOORBELL)) {
13793 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13794 "3270 RQ[%d] doorbell offset not "
13795 "supported: x%x\n", hrq->queue_id,
13796 db_offset);
13797 status = -EINVAL;
13798 goto out;
13799 }
13800 hrq->db_regaddr = bar_memmap_p + db_offset;
13801 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarta22e7db2013-04-17 20:16:37 -040013802 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13803 "format:x%x\n", hrq->queue_id, pci_barset,
13804 db_offset, hrq->db_format);
James Smart962bc512013-01-03 15:44:00 -050013805 } else {
13806 hrq->db_format = LPFC_DB_RING_FORMAT;
13807 hrq->db_regaddr = phba->sli4_hba.RQDBregaddr;
13808 }
James Smart4f774512009-05-22 14:52:35 -040013809 hrq->type = LPFC_HRQ;
James Smart2a622bf2011-02-16 12:40:06 -050013810 hrq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040013811 hrq->subtype = subtype;
13812 hrq->host_index = 0;
13813 hrq->hba_index = 0;
13814
13815 /* now create the data queue */
13816 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13817 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
13818 length, LPFC_SLI4_MBX_EMBED);
James Smart5a6f1332011-03-11 16:05:35 -050013819 bf_set(lpfc_mbox_hdr_version, &shdr->request,
13820 phba->sli4_hba.pc_sli4_params.rqv);
13821 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
13822 bf_set(lpfc_rq_context_rqe_count_1,
James Smartc31098c2011-04-16 11:03:33 -040013823 &rq_create->u.request.context, hrq->entry_count);
James Smart5a6f1332011-03-11 16:05:35 -050013824 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040013825 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
13826 LPFC_RQE_SIZE_8);
13827 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
13828 (PAGE_SIZE/SLI4_PAGE_SIZE));
James Smart5a6f1332011-03-11 16:05:35 -050013829 } else {
13830 switch (drq->entry_count) {
13831 default:
13832 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13833 "2536 Unsupported RQ count. (%d)\n",
13834 drq->entry_count);
James Smart4f4c1862012-06-12 13:54:02 -040013835 if (drq->entry_count < 512) {
13836 status = -EINVAL;
13837 goto out;
13838 }
James Smart5a6f1332011-03-11 16:05:35 -050013839 /* otherwise default to smallest count (drop through) */
13840 case 512:
13841 bf_set(lpfc_rq_context_rqe_count,
13842 &rq_create->u.request.context,
13843 LPFC_RQ_RING_SIZE_512);
13844 break;
13845 case 1024:
13846 bf_set(lpfc_rq_context_rqe_count,
13847 &rq_create->u.request.context,
13848 LPFC_RQ_RING_SIZE_1024);
13849 break;
13850 case 2048:
13851 bf_set(lpfc_rq_context_rqe_count,
13852 &rq_create->u.request.context,
13853 LPFC_RQ_RING_SIZE_2048);
13854 break;
13855 case 4096:
13856 bf_set(lpfc_rq_context_rqe_count,
13857 &rq_create->u.request.context,
13858 LPFC_RQ_RING_SIZE_4096);
13859 break;
13860 }
13861 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
13862 LPFC_DATA_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040013863 }
13864 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
13865 cq->queue_id);
13866 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
13867 drq->page_count);
James Smart4f774512009-05-22 14:52:35 -040013868 list_for_each_entry(dmabuf, &drq->page_list, list) {
13869 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
13870 putPaddrLow(dmabuf->phys);
13871 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
13872 putPaddrHigh(dmabuf->phys);
13873 }
James Smart962bc512013-01-03 15:44:00 -050013874 if (phba->sli4_hba.fw_func_mode & LPFC_DUA_MODE)
13875 bf_set(lpfc_mbx_rq_create_dua, &rq_create->u.request, 1);
James Smart4f774512009-05-22 14:52:35 -040013876 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13877 /* The IOCTL status is embedded in the mailbox subheader. */
13878 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
13879 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13880 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13881 if (shdr_status || shdr_add_status || rc) {
13882 status = -ENXIO;
13883 goto out;
13884 }
13885 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
13886 if (drq->queue_id == 0xFFFF) {
13887 status = -ENXIO;
13888 goto out;
13889 }
13890 drq->type = LPFC_DRQ;
James Smart2a622bf2011-02-16 12:40:06 -050013891 drq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040013892 drq->subtype = subtype;
13893 drq->host_index = 0;
13894 drq->hba_index = 0;
13895
13896 /* link the header and data RQs onto the parent cq child list */
13897 list_add_tail(&hrq->list, &cq->child_list);
13898 list_add_tail(&drq->list, &cq->child_list);
13899
13900out:
James Smart8fa38512009-07-19 10:01:03 -040013901 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040013902 return status;
13903}
13904
13905/**
13906 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13907 * @eq: The queue structure associated with the queue to destroy.
13908 *
13909 * This function destroys a queue, as detailed in @eq by sending an mailbox
13910 * command, specific to the type of queue, to the HBA.
13911 *
13912 * The @eq struct is used to get the queue ID of the queue to destroy.
13913 *
13914 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040013915 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040013916 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040013917int
James Smart4f774512009-05-22 14:52:35 -040013918lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
13919{
13920 LPFC_MBOXQ_t *mbox;
13921 int rc, length, status = 0;
13922 uint32_t shdr_status, shdr_add_status;
13923 union lpfc_sli4_cfg_shdr *shdr;
13924
James Smart2e90f4b2011-12-13 13:22:37 -050013925 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040013926 if (!eq)
13927 return -ENODEV;
13928 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
13929 if (!mbox)
13930 return -ENOMEM;
13931 length = (sizeof(struct lpfc_mbx_eq_destroy) -
13932 sizeof(struct lpfc_sli4_cfg_mhdr));
13933 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13934 LPFC_MBOX_OPCODE_EQ_DESTROY,
13935 length, LPFC_SLI4_MBX_EMBED);
13936 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
13937 eq->queue_id);
13938 mbox->vport = eq->phba->pport;
13939 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13940
13941 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
13942 /* The IOCTL status is embedded in the mailbox subheader. */
13943 shdr = (union lpfc_sli4_cfg_shdr *)
13944 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
13945 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13946 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13947 if (shdr_status || shdr_add_status || rc) {
13948 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13949 "2505 EQ_DESTROY mailbox failed with "
13950 "status x%x add_status x%x, mbx status x%x\n",
13951 shdr_status, shdr_add_status, rc);
13952 status = -ENXIO;
13953 }
13954
13955 /* Remove eq from any list */
13956 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040013957 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040013958 return status;
13959}
13960
13961/**
13962 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13963 * @cq: The queue structure associated with the queue to destroy.
13964 *
13965 * This function destroys a queue, as detailed in @cq by sending an mailbox
13966 * command, specific to the type of queue, to the HBA.
13967 *
13968 * The @cq struct is used to get the queue ID of the queue to destroy.
13969 *
13970 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040013971 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040013972 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040013973int
James Smart4f774512009-05-22 14:52:35 -040013974lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
13975{
13976 LPFC_MBOXQ_t *mbox;
13977 int rc, length, status = 0;
13978 uint32_t shdr_status, shdr_add_status;
13979 union lpfc_sli4_cfg_shdr *shdr;
13980
James Smart2e90f4b2011-12-13 13:22:37 -050013981 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040013982 if (!cq)
13983 return -ENODEV;
13984 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
13985 if (!mbox)
13986 return -ENOMEM;
13987 length = (sizeof(struct lpfc_mbx_cq_destroy) -
13988 sizeof(struct lpfc_sli4_cfg_mhdr));
13989 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
13990 LPFC_MBOX_OPCODE_CQ_DESTROY,
13991 length, LPFC_SLI4_MBX_EMBED);
13992 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
13993 cq->queue_id);
13994 mbox->vport = cq->phba->pport;
13995 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13996 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
13997 /* The IOCTL status is embedded in the mailbox subheader. */
13998 shdr = (union lpfc_sli4_cfg_shdr *)
13999 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
14000 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14001 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14002 if (shdr_status || shdr_add_status || rc) {
14003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14004 "2506 CQ_DESTROY mailbox failed with "
14005 "status x%x add_status x%x, mbx status x%x\n",
14006 shdr_status, shdr_add_status, rc);
14007 status = -ENXIO;
14008 }
14009 /* Remove cq from any list */
14010 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040014011 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040014012 return status;
14013}
14014
14015/**
James Smart04c68492009-05-22 14:52:52 -040014016 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14017 * @qm: The queue structure associated with the queue to destroy.
14018 *
14019 * This function destroys a queue, as detailed in @mq by sending an mailbox
14020 * command, specific to the type of queue, to the HBA.
14021 *
14022 * The @mq struct is used to get the queue ID of the queue to destroy.
14023 *
14024 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040014025 * command fails this function will return -ENXIO.
James Smart04c68492009-05-22 14:52:52 -040014026 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014027int
James Smart04c68492009-05-22 14:52:52 -040014028lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
14029{
14030 LPFC_MBOXQ_t *mbox;
14031 int rc, length, status = 0;
14032 uint32_t shdr_status, shdr_add_status;
14033 union lpfc_sli4_cfg_shdr *shdr;
14034
James Smart2e90f4b2011-12-13 13:22:37 -050014035 /* sanity check on queue memory */
James Smart04c68492009-05-22 14:52:52 -040014036 if (!mq)
14037 return -ENODEV;
14038 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
14039 if (!mbox)
14040 return -ENOMEM;
14041 length = (sizeof(struct lpfc_mbx_mq_destroy) -
14042 sizeof(struct lpfc_sli4_cfg_mhdr));
14043 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
14044 LPFC_MBOX_OPCODE_MQ_DESTROY,
14045 length, LPFC_SLI4_MBX_EMBED);
14046 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
14047 mq->queue_id);
14048 mbox->vport = mq->phba->pport;
14049 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14050 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
14051 /* The IOCTL status is embedded in the mailbox subheader. */
14052 shdr = (union lpfc_sli4_cfg_shdr *)
14053 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
14054 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14055 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14056 if (shdr_status || shdr_add_status || rc) {
14057 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14058 "2507 MQ_DESTROY mailbox failed with "
14059 "status x%x add_status x%x, mbx status x%x\n",
14060 shdr_status, shdr_add_status, rc);
14061 status = -ENXIO;
14062 }
14063 /* Remove mq from any list */
14064 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040014065 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040014066 return status;
14067}
14068
14069/**
James Smart4f774512009-05-22 14:52:35 -040014070 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14071 * @wq: The queue structure associated with the queue to destroy.
14072 *
14073 * This function destroys a queue, as detailed in @wq by sending an mailbox
14074 * command, specific to the type of queue, to the HBA.
14075 *
14076 * The @wq struct is used to get the queue ID of the queue to destroy.
14077 *
14078 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040014079 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040014080 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014081int
James Smart4f774512009-05-22 14:52:35 -040014082lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
14083{
14084 LPFC_MBOXQ_t *mbox;
14085 int rc, length, status = 0;
14086 uint32_t shdr_status, shdr_add_status;
14087 union lpfc_sli4_cfg_shdr *shdr;
14088
James Smart2e90f4b2011-12-13 13:22:37 -050014089 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040014090 if (!wq)
14091 return -ENODEV;
14092 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
14093 if (!mbox)
14094 return -ENOMEM;
14095 length = (sizeof(struct lpfc_mbx_wq_destroy) -
14096 sizeof(struct lpfc_sli4_cfg_mhdr));
14097 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14098 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
14099 length, LPFC_SLI4_MBX_EMBED);
14100 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
14101 wq->queue_id);
14102 mbox->vport = wq->phba->pport;
14103 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14104 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
14105 shdr = (union lpfc_sli4_cfg_shdr *)
14106 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
14107 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14108 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14109 if (shdr_status || shdr_add_status || rc) {
14110 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14111 "2508 WQ_DESTROY mailbox failed with "
14112 "status x%x add_status x%x, mbx status x%x\n",
14113 shdr_status, shdr_add_status, rc);
14114 status = -ENXIO;
14115 }
14116 /* Remove wq from any list */
14117 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040014118 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040014119 return status;
14120}
14121
14122/**
14123 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14124 * @rq: The queue structure associated with the queue to destroy.
14125 *
14126 * This function destroys a queue, as detailed in @rq by sending an mailbox
14127 * command, specific to the type of queue, to the HBA.
14128 *
14129 * The @rq struct is used to get the queue ID of the queue to destroy.
14130 *
14131 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040014132 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040014133 **/
James Smarta2fc4aef2014-09-03 12:57:55 -040014134int
James Smart4f774512009-05-22 14:52:35 -040014135lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
14136 struct lpfc_queue *drq)
14137{
14138 LPFC_MBOXQ_t *mbox;
14139 int rc, length, status = 0;
14140 uint32_t shdr_status, shdr_add_status;
14141 union lpfc_sli4_cfg_shdr *shdr;
14142
James Smart2e90f4b2011-12-13 13:22:37 -050014143 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040014144 if (!hrq || !drq)
14145 return -ENODEV;
14146 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
14147 if (!mbox)
14148 return -ENOMEM;
14149 length = (sizeof(struct lpfc_mbx_rq_destroy) -
James Smartfedd3b72011-02-16 12:39:24 -050014150 sizeof(struct lpfc_sli4_cfg_mhdr));
James Smart4f774512009-05-22 14:52:35 -040014151 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14152 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
14153 length, LPFC_SLI4_MBX_EMBED);
14154 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14155 hrq->queue_id);
14156 mbox->vport = hrq->phba->pport;
14157 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
14158 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
14159 /* The IOCTL status is embedded in the mailbox subheader. */
14160 shdr = (union lpfc_sli4_cfg_shdr *)
14161 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14162 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14163 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14164 if (shdr_status || shdr_add_status || rc) {
14165 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14166 "2509 RQ_DESTROY mailbox failed with "
14167 "status x%x add_status x%x, mbx status x%x\n",
14168 shdr_status, shdr_add_status, rc);
14169 if (rc != MBX_TIMEOUT)
14170 mempool_free(mbox, hrq->phba->mbox_mem_pool);
14171 return -ENXIO;
14172 }
14173 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
14174 drq->queue_id);
14175 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
14176 shdr = (union lpfc_sli4_cfg_shdr *)
14177 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
14178 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14179 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14180 if (shdr_status || shdr_add_status || rc) {
14181 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14182 "2510 RQ_DESTROY mailbox failed with "
14183 "status x%x add_status x%x, mbx status x%x\n",
14184 shdr_status, shdr_add_status, rc);
14185 status = -ENXIO;
14186 }
14187 list_del_init(&hrq->list);
14188 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040014189 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040014190 return status;
14191}
14192
14193/**
14194 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14195 * @phba: The virtual port for which this call being executed.
14196 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14197 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14198 * @xritag: the xritag that ties this io to the SGL pages.
14199 *
14200 * This routine will post the sgl pages for the IO that has the xritag
14201 * that is in the iocbq structure. The xritag is assigned during iocbq
14202 * creation and persists for as long as the driver is loaded.
14203 * if the caller has fewer than 256 scatter gather segments to map then
14204 * pdma_phys_addr1 should be 0.
14205 * If the caller needs to map more than 256 scatter gather segment then
14206 * pdma_phys_addr1 should be a valid physical address.
14207 * physical address for SGLs must be 64 byte aligned.
14208 * If you are going to map 2 SGL's then the first one must have 256 entries
14209 * the second sgl can have between 1 and 256 entries.
14210 *
14211 * Return codes:
14212 * 0 - Success
14213 * -ENXIO, -ENOMEM - Failure
14214 **/
14215int
14216lpfc_sli4_post_sgl(struct lpfc_hba *phba,
14217 dma_addr_t pdma_phys_addr0,
14218 dma_addr_t pdma_phys_addr1,
14219 uint16_t xritag)
14220{
14221 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
14222 LPFC_MBOXQ_t *mbox;
14223 int rc;
14224 uint32_t shdr_status, shdr_add_status;
James Smart6d368e52011-05-24 11:44:12 -040014225 uint32_t mbox_tmo;
James Smart4f774512009-05-22 14:52:35 -040014226 union lpfc_sli4_cfg_shdr *shdr;
14227
14228 if (xritag == NO_XRI) {
14229 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14230 "0364 Invalid param:\n");
14231 return -EINVAL;
14232 }
14233
14234 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14235 if (!mbox)
14236 return -ENOMEM;
14237
14238 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14239 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
14240 sizeof(struct lpfc_mbx_post_sgl_pages) -
James Smartfedd3b72011-02-16 12:39:24 -050014241 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
James Smart4f774512009-05-22 14:52:35 -040014242
14243 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
14244 &mbox->u.mqe.un.post_sgl_pages;
14245 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
14246 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
14247
14248 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
14249 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
14250 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
14251 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
14252
14253 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
14254 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
14255 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
14256 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
14257 if (!phba->sli4_hba.intr_enable)
14258 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smart6d368e52011-05-24 11:44:12 -040014259 else {
James Smarta183a152011-10-10 21:32:43 -040014260 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -040014261 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14262 }
James Smart4f774512009-05-22 14:52:35 -040014263 /* The IOCTL status is embedded in the mailbox subheader. */
14264 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
14265 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14266 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14267 if (rc != MBX_TIMEOUT)
14268 mempool_free(mbox, phba->mbox_mem_pool);
14269 if (shdr_status || shdr_add_status || rc) {
14270 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14271 "2511 POST_SGL mailbox failed with "
14272 "status x%x add_status x%x, mbx status x%x\n",
14273 shdr_status, shdr_add_status, rc);
James Smart4f774512009-05-22 14:52:35 -040014274 }
14275 return 0;
14276}
James Smart4f774512009-05-22 14:52:35 -040014277
14278/**
James Smart88a2cfb2011-07-22 18:36:33 -040014279 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
James Smart6d368e52011-05-24 11:44:12 -040014280 * @phba: pointer to lpfc hba data structure.
14281 *
14282 * This routine is invoked to post rpi header templates to the
James Smart88a2cfb2011-07-22 18:36:33 -040014283 * HBA consistent with the SLI-4 interface spec. This routine
14284 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14285 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6d368e52011-05-24 11:44:12 -040014286 *
James Smart88a2cfb2011-07-22 18:36:33 -040014287 * Returns
14288 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14289 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14290 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040014291static uint16_t
James Smart6d368e52011-05-24 11:44:12 -040014292lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
14293{
14294 unsigned long xri;
14295
14296 /*
14297 * Fetch the next logical xri. Because this index is logical,
14298 * the driver starts at 0 each time.
14299 */
14300 spin_lock_irq(&phba->hbalock);
14301 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
14302 phba->sli4_hba.max_cfg_param.max_xri, 0);
14303 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
14304 spin_unlock_irq(&phba->hbalock);
14305 return NO_XRI;
14306 } else {
14307 set_bit(xri, phba->sli4_hba.xri_bmask);
14308 phba->sli4_hba.max_cfg_param.xri_used++;
James Smart6d368e52011-05-24 11:44:12 -040014309 }
James Smart6d368e52011-05-24 11:44:12 -040014310 spin_unlock_irq(&phba->hbalock);
14311 return xri;
14312}
14313
14314/**
14315 * lpfc_sli4_free_xri - Release an xri for reuse.
14316 * @phba: pointer to lpfc hba data structure.
14317 *
14318 * This routine is invoked to release an xri to the pool of
14319 * available rpis maintained by the driver.
14320 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040014321static void
James Smart6d368e52011-05-24 11:44:12 -040014322__lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14323{
14324 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
James Smart6d368e52011-05-24 11:44:12 -040014325 phba->sli4_hba.max_cfg_param.xri_used--;
14326 }
14327}
14328
14329/**
14330 * lpfc_sli4_free_xri - Release an xri for reuse.
14331 * @phba: pointer to lpfc hba data structure.
14332 *
14333 * This routine is invoked to release an xri to the pool of
14334 * available rpis maintained by the driver.
14335 **/
14336void
14337lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
14338{
14339 spin_lock_irq(&phba->hbalock);
14340 __lpfc_sli4_free_xri(phba, xri);
14341 spin_unlock_irq(&phba->hbalock);
14342}
14343
14344/**
James Smart4f774512009-05-22 14:52:35 -040014345 * lpfc_sli4_next_xritag - Get an xritag for the io
14346 * @phba: Pointer to HBA context object.
14347 *
14348 * This function gets an xritag for the iocb. If there is no unused xritag
14349 * it will return 0xffff.
14350 * The function returns the allocated xritag if successful, else returns zero.
14351 * Zero is not a valid xritag.
14352 * The caller is not required to hold any lock.
14353 **/
14354uint16_t
14355lpfc_sli4_next_xritag(struct lpfc_hba *phba)
14356{
James Smart6d368e52011-05-24 11:44:12 -040014357 uint16_t xri_index;
James Smart4f774512009-05-22 14:52:35 -040014358
James Smart6d368e52011-05-24 11:44:12 -040014359 xri_index = lpfc_sli4_alloc_xri(phba);
James Smart81378052012-05-09 21:17:37 -040014360 if (xri_index == NO_XRI)
14361 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
14362 "2004 Failed to allocate XRI.last XRITAG is %d"
14363 " Max XRI is %d, Used XRI is %d\n",
14364 xri_index,
14365 phba->sli4_hba.max_cfg_param.max_xri,
14366 phba->sli4_hba.max_cfg_param.xri_used);
14367 return xri_index;
James Smart4f774512009-05-22 14:52:35 -040014368}
14369
14370/**
James Smart6d368e52011-05-24 11:44:12 -040014371 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
James Smart4f774512009-05-22 14:52:35 -040014372 * @phba: pointer to lpfc hba data structure.
James Smart8a9d2e82012-05-09 21:16:12 -040014373 * @post_sgl_list: pointer to els sgl entry list.
14374 * @count: number of els sgl entries on the list.
James Smart4f774512009-05-22 14:52:35 -040014375 *
14376 * This routine is invoked to post a block of driver's sgl pages to the
14377 * HBA using non-embedded mailbox command. No Lock is held. This routine
14378 * is only called when the driver is loading and after all IO has been
14379 * stopped.
14380 **/
James Smart8a9d2e82012-05-09 21:16:12 -040014381static int
14382lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba,
14383 struct list_head *post_sgl_list,
14384 int post_cnt)
James Smart4f774512009-05-22 14:52:35 -040014385{
James Smart8a9d2e82012-05-09 21:16:12 -040014386 struct lpfc_sglq *sglq_entry = NULL, *sglq_next = NULL;
James Smart4f774512009-05-22 14:52:35 -040014387 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14388 struct sgl_page_pairs *sgl_pg_pairs;
14389 void *viraddr;
14390 LPFC_MBOXQ_t *mbox;
14391 uint32_t reqlen, alloclen, pg_pairs;
14392 uint32_t mbox_tmo;
James Smart8a9d2e82012-05-09 21:16:12 -040014393 uint16_t xritag_start = 0;
14394 int rc = 0;
James Smart4f774512009-05-22 14:52:35 -040014395 uint32_t shdr_status, shdr_add_status;
14396 union lpfc_sli4_cfg_shdr *shdr;
14397
James Smart8a9d2e82012-05-09 21:16:12 -040014398 reqlen = phba->sli4_hba.els_xri_cnt * sizeof(struct sgl_page_pairs) +
James Smart4f774512009-05-22 14:52:35 -040014399 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040014400 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040014401 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14402 "2559 Block sgl registration required DMA "
14403 "size (%d) great than a page\n", reqlen);
14404 return -ENOMEM;
14405 }
14406 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
James Smart6d368e52011-05-24 11:44:12 -040014407 if (!mbox)
James Smart4f774512009-05-22 14:52:35 -040014408 return -ENOMEM;
James Smart4f774512009-05-22 14:52:35 -040014409
14410 /* Allocate DMA memory and set up the non-embedded mailbox command */
14411 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14412 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14413 LPFC_SLI4_MBX_NEMBED);
14414
14415 if (alloclen < reqlen) {
14416 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14417 "0285 Allocated DMA memory size (%d) is "
14418 "less than the requested DMA memory "
14419 "size (%d)\n", alloclen, reqlen);
14420 lpfc_sli4_mbox_cmd_free(phba, mbox);
14421 return -ENOMEM;
14422 }
James Smart4f774512009-05-22 14:52:35 -040014423 /* Set up the SGL pages in the non-embedded DMA pages */
James Smart6d368e52011-05-24 11:44:12 -040014424 viraddr = mbox->sge_array->addr[0];
James Smart4f774512009-05-22 14:52:35 -040014425 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14426 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14427
James Smart8a9d2e82012-05-09 21:16:12 -040014428 pg_pairs = 0;
14429 list_for_each_entry_safe(sglq_entry, sglq_next, post_sgl_list, list) {
James Smart4f774512009-05-22 14:52:35 -040014430 /* Set up the sge entry */
14431 sgl_pg_pairs->sgl_pg0_addr_lo =
14432 cpu_to_le32(putPaddrLow(sglq_entry->phys));
14433 sgl_pg_pairs->sgl_pg0_addr_hi =
14434 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
14435 sgl_pg_pairs->sgl_pg1_addr_lo =
14436 cpu_to_le32(putPaddrLow(0));
14437 sgl_pg_pairs->sgl_pg1_addr_hi =
14438 cpu_to_le32(putPaddrHigh(0));
James Smart6d368e52011-05-24 11:44:12 -040014439
James Smart4f774512009-05-22 14:52:35 -040014440 /* Keep the first xritag on the list */
14441 if (pg_pairs == 0)
14442 xritag_start = sglq_entry->sli4_xritag;
14443 sgl_pg_pairs++;
James Smart8a9d2e82012-05-09 21:16:12 -040014444 pg_pairs++;
James Smart4f774512009-05-22 14:52:35 -040014445 }
James Smart6d368e52011-05-24 11:44:12 -040014446
14447 /* Complete initialization and perform endian conversion. */
James Smart4f774512009-05-22 14:52:35 -040014448 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart8a9d2e82012-05-09 21:16:12 -040014449 bf_set(lpfc_post_sgl_pages_xricnt, sgl, phba->sli4_hba.els_xri_cnt);
James Smart4f774512009-05-22 14:52:35 -040014450 sgl->word0 = cpu_to_le32(sgl->word0);
James Smart4f774512009-05-22 14:52:35 -040014451 if (!phba->sli4_hba.intr_enable)
14452 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14453 else {
James Smarta183a152011-10-10 21:32:43 -040014454 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040014455 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14456 }
14457 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14458 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14459 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14460 if (rc != MBX_TIMEOUT)
14461 lpfc_sli4_mbox_cmd_free(phba, mbox);
14462 if (shdr_status || shdr_add_status || rc) {
14463 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14464 "2513 POST_SGL_BLOCK mailbox command failed "
14465 "status x%x add_status x%x mbx status x%x\n",
14466 shdr_status, shdr_add_status, rc);
14467 rc = -ENXIO;
14468 }
14469 return rc;
14470}
14471
14472/**
14473 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14474 * @phba: pointer to lpfc hba data structure.
14475 * @sblist: pointer to scsi buffer list.
14476 * @count: number of scsi buffers on the list.
14477 *
14478 * This routine is invoked to post a block of @count scsi sgl pages from a
14479 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14480 * No Lock is held.
14481 *
14482 **/
14483int
James Smart8a9d2e82012-05-09 21:16:12 -040014484lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba,
14485 struct list_head *sblist,
14486 int count)
James Smart4f774512009-05-22 14:52:35 -040014487{
14488 struct lpfc_scsi_buf *psb;
14489 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
14490 struct sgl_page_pairs *sgl_pg_pairs;
14491 void *viraddr;
14492 LPFC_MBOXQ_t *mbox;
14493 uint32_t reqlen, alloclen, pg_pairs;
14494 uint32_t mbox_tmo;
14495 uint16_t xritag_start = 0;
14496 int rc = 0;
14497 uint32_t shdr_status, shdr_add_status;
14498 dma_addr_t pdma_phys_bpl1;
14499 union lpfc_sli4_cfg_shdr *shdr;
14500
14501 /* Calculate the requested length of the dma memory */
James Smart8a9d2e82012-05-09 21:16:12 -040014502 reqlen = count * sizeof(struct sgl_page_pairs) +
James Smart4f774512009-05-22 14:52:35 -040014503 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040014504 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040014505 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
14506 "0217 Block sgl registration required DMA "
14507 "size (%d) great than a page\n", reqlen);
14508 return -ENOMEM;
14509 }
14510 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14511 if (!mbox) {
14512 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14513 "0283 Failed to allocate mbox cmd memory\n");
14514 return -ENOMEM;
14515 }
14516
14517 /* Allocate DMA memory and set up the non-embedded mailbox command */
14518 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
14519 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
14520 LPFC_SLI4_MBX_NEMBED);
14521
14522 if (alloclen < reqlen) {
14523 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14524 "2561 Allocated DMA memory size (%d) is "
14525 "less than the requested DMA memory "
14526 "size (%d)\n", alloclen, reqlen);
14527 lpfc_sli4_mbox_cmd_free(phba, mbox);
14528 return -ENOMEM;
14529 }
James Smart6d368e52011-05-24 11:44:12 -040014530
James Smart4f774512009-05-22 14:52:35 -040014531 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040014532 viraddr = mbox->sge_array->addr[0];
14533
14534 /* Set up the SGL pages in the non-embedded DMA pages */
14535 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
14536 sgl_pg_pairs = &sgl->sgl_pg_pairs;
14537
14538 pg_pairs = 0;
14539 list_for_each_entry(psb, sblist, list) {
14540 /* Set up the sge entry */
14541 sgl_pg_pairs->sgl_pg0_addr_lo =
14542 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
14543 sgl_pg_pairs->sgl_pg0_addr_hi =
14544 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
14545 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
14546 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
14547 else
14548 pdma_phys_bpl1 = 0;
14549 sgl_pg_pairs->sgl_pg1_addr_lo =
14550 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
14551 sgl_pg_pairs->sgl_pg1_addr_hi =
14552 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
14553 /* Keep the first xritag on the list */
14554 if (pg_pairs == 0)
14555 xritag_start = psb->cur_iocbq.sli4_xritag;
14556 sgl_pg_pairs++;
14557 pg_pairs++;
14558 }
14559 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
14560 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
14561 /* Perform endian conversion if necessary */
14562 sgl->word0 = cpu_to_le32(sgl->word0);
14563
14564 if (!phba->sli4_hba.intr_enable)
14565 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
14566 else {
James Smarta183a152011-10-10 21:32:43 -040014567 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040014568 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
14569 }
14570 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
14571 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14572 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14573 if (rc != MBX_TIMEOUT)
14574 lpfc_sli4_mbox_cmd_free(phba, mbox);
14575 if (shdr_status || shdr_add_status || rc) {
14576 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14577 "2564 POST_SGL_BLOCK mailbox command failed "
14578 "status x%x add_status x%x mbx status x%x\n",
14579 shdr_status, shdr_add_status, rc);
14580 rc = -ENXIO;
14581 }
14582 return rc;
14583}
14584
14585/**
14586 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14587 * @phba: pointer to lpfc_hba struct that the frame was received on
14588 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14589 *
14590 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14591 * valid type of frame that the LPFC driver will handle. This function will
14592 * return a zero if the frame is a valid frame or a non zero value when the
14593 * frame does not pass the check.
14594 **/
14595static int
14596lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
14597{
Tomas Henzl474ffb72010-12-22 16:52:40 +010014598 /* make rctl_names static to save stack space */
14599 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
James Smart4f774512009-05-22 14:52:35 -040014600 char *type_names[] = FC_TYPE_NAMES_INIT;
14601 struct fc_vft_header *fc_vft_hdr;
James Smart546fc852011-03-11 16:06:29 -050014602 uint32_t *header = (uint32_t *) fc_hdr;
James Smart4f774512009-05-22 14:52:35 -040014603
14604 switch (fc_hdr->fh_r_ctl) {
14605 case FC_RCTL_DD_UNCAT: /* uncategorized information */
14606 case FC_RCTL_DD_SOL_DATA: /* solicited data */
14607 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
14608 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
14609 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
14610 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
14611 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
14612 case FC_RCTL_DD_CMD_STATUS: /* command status */
14613 case FC_RCTL_ELS_REQ: /* extended link services request */
14614 case FC_RCTL_ELS_REP: /* extended link services reply */
14615 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
14616 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
14617 case FC_RCTL_BA_NOP: /* basic link service NOP */
14618 case FC_RCTL_BA_ABTS: /* basic link service abort */
14619 case FC_RCTL_BA_RMC: /* remove connection */
14620 case FC_RCTL_BA_ACC: /* basic accept */
14621 case FC_RCTL_BA_RJT: /* basic reject */
14622 case FC_RCTL_BA_PRMT:
14623 case FC_RCTL_ACK_1: /* acknowledge_1 */
14624 case FC_RCTL_ACK_0: /* acknowledge_0 */
14625 case FC_RCTL_P_RJT: /* port reject */
14626 case FC_RCTL_F_RJT: /* fabric reject */
14627 case FC_RCTL_P_BSY: /* port busy */
14628 case FC_RCTL_F_BSY: /* fabric busy to data frame */
14629 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
14630 case FC_RCTL_LCR: /* link credit reset */
14631 case FC_RCTL_END: /* end */
14632 break;
14633 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
14634 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14635 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
14636 return lpfc_fc_frame_check(phba, fc_hdr);
14637 default:
14638 goto drop;
14639 }
14640 switch (fc_hdr->fh_type) {
14641 case FC_TYPE_BLS:
14642 case FC_TYPE_ELS:
14643 case FC_TYPE_FCP:
14644 case FC_TYPE_CT:
14645 break;
14646 case FC_TYPE_IP:
14647 case FC_TYPE_ILS:
14648 default:
14649 goto drop;
14650 }
James Smart546fc852011-03-11 16:06:29 -050014651
James Smart4f774512009-05-22 14:52:35 -040014652 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smart88f43a02013-04-17 20:19:44 -040014653 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14654 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14655 rctl_names[fc_hdr->fh_r_ctl], fc_hdr->fh_r_ctl,
14656 type_names[fc_hdr->fh_type], fc_hdr->fh_type,
James Smart546fc852011-03-11 16:06:29 -050014657 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
14658 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
James Smart88f43a02013-04-17 20:19:44 -040014659 be32_to_cpu(header[4]), be32_to_cpu(header[5]),
14660 be32_to_cpu(header[6]));
James Smart4f774512009-05-22 14:52:35 -040014661 return 0;
14662drop:
14663 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14664 "2539 Dropped frame rctl:%s type:%s\n",
14665 rctl_names[fc_hdr->fh_r_ctl],
14666 type_names[fc_hdr->fh_type]);
14667 return 1;
14668}
14669
14670/**
14671 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14672 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14673 *
14674 * This function processes the FC header to retrieve the VFI from the VF
14675 * header, if one exists. This function will return the VFI if one exists
14676 * or 0 if no VSAN Header exists.
14677 **/
14678static uint32_t
14679lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
14680{
14681 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
14682
14683 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
14684 return 0;
14685 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
14686}
14687
14688/**
14689 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14690 * @phba: Pointer to the HBA structure to search for the vport on
14691 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14692 * @fcfi: The FC Fabric ID that the frame came from
14693 *
14694 * This function searches the @phba for a vport that matches the content of the
14695 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14696 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14697 * returns the matching vport pointer or NULL if unable to match frame to a
14698 * vport.
14699 **/
14700static struct lpfc_vport *
14701lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
14702 uint16_t fcfi)
14703{
14704 struct lpfc_vport **vports;
14705 struct lpfc_vport *vport = NULL;
14706 int i;
14707 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
14708 fc_hdr->fh_d_id[1] << 8 |
14709 fc_hdr->fh_d_id[2]);
James Smart939723a2012-05-09 21:19:03 -040014710
James Smartbf086112011-08-21 21:48:13 -040014711 if (did == Fabric_DID)
14712 return phba->pport;
James Smart939723a2012-05-09 21:19:03 -040014713 if ((phba->pport->fc_flag & FC_PT2PT) &&
14714 !(phba->link_state == LPFC_HBA_READY))
14715 return phba->pport;
14716
James Smart4f774512009-05-22 14:52:35 -040014717 vports = lpfc_create_vport_work_array(phba);
14718 if (vports != NULL)
14719 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
14720 if (phba->fcf.fcfi == fcfi &&
14721 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
14722 vports[i]->fc_myDID == did) {
14723 vport = vports[i];
14724 break;
14725 }
14726 }
14727 lpfc_destroy_vport_work_array(phba, vports);
14728 return vport;
14729}
14730
14731/**
James Smart45ed1192009-10-02 15:17:02 -040014732 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14733 * @vport: The vport to work on.
14734 *
14735 * This function updates the receive sequence time stamp for this vport. The
14736 * receive sequence time stamp indicates the time that the last frame of the
14737 * the sequence that has been idle for the longest amount of time was received.
14738 * the driver uses this time stamp to indicate if any received sequences have
14739 * timed out.
14740 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040014741static void
James Smart45ed1192009-10-02 15:17:02 -040014742lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
14743{
14744 struct lpfc_dmabuf *h_buf;
14745 struct hbq_dmabuf *dmabuf = NULL;
14746
14747 /* get the oldest sequence on the rcv list */
14748 h_buf = list_get_first(&vport->rcv_buffer_list,
14749 struct lpfc_dmabuf, list);
14750 if (!h_buf)
14751 return;
14752 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14753 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
14754}
14755
14756/**
14757 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14758 * @vport: The vport that the received sequences were sent to.
14759 *
14760 * This function cleans up all outstanding received sequences. This is called
14761 * by the driver when a link event or user action invalidates all the received
14762 * sequences.
14763 **/
14764void
14765lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
14766{
14767 struct lpfc_dmabuf *h_buf, *hnext;
14768 struct lpfc_dmabuf *d_buf, *dnext;
14769 struct hbq_dmabuf *dmabuf = NULL;
14770
14771 /* start with the oldest sequence on the rcv list */
14772 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14773 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14774 list_del_init(&dmabuf->hbuf.list);
14775 list_for_each_entry_safe(d_buf, dnext,
14776 &dmabuf->dbuf.list, list) {
14777 list_del_init(&d_buf->list);
14778 lpfc_in_buf_free(vport->phba, d_buf);
14779 }
14780 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14781 }
14782}
14783
14784/**
14785 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14786 * @vport: The vport that the received sequences were sent to.
14787 *
14788 * This function determines whether any received sequences have timed out by
14789 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14790 * indicates that there is at least one timed out sequence this routine will
14791 * go through the received sequences one at a time from most inactive to most
14792 * active to determine which ones need to be cleaned up. Once it has determined
14793 * that a sequence needs to be cleaned up it will simply free up the resources
14794 * without sending an abort.
14795 **/
14796void
14797lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
14798{
14799 struct lpfc_dmabuf *h_buf, *hnext;
14800 struct lpfc_dmabuf *d_buf, *dnext;
14801 struct hbq_dmabuf *dmabuf = NULL;
14802 unsigned long timeout;
14803 int abort_count = 0;
14804
14805 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14806 vport->rcv_buffer_time_stamp);
14807 if (list_empty(&vport->rcv_buffer_list) ||
14808 time_before(jiffies, timeout))
14809 return;
14810 /* start with the oldest sequence on the rcv list */
14811 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
14812 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14813 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
14814 dmabuf->time_stamp);
14815 if (time_before(jiffies, timeout))
14816 break;
14817 abort_count++;
14818 list_del_init(&dmabuf->hbuf.list);
14819 list_for_each_entry_safe(d_buf, dnext,
14820 &dmabuf->dbuf.list, list) {
14821 list_del_init(&d_buf->list);
14822 lpfc_in_buf_free(vport->phba, d_buf);
14823 }
14824 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
14825 }
14826 if (abort_count)
14827 lpfc_update_rcv_time_stamp(vport);
14828}
14829
14830/**
James Smart4f774512009-05-22 14:52:35 -040014831 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14832 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14833 *
14834 * This function searches through the existing incomplete sequences that have
14835 * been sent to this @vport. If the frame matches one of the incomplete
14836 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14837 * make up that sequence. If no sequence is found that matches this frame then
14838 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14839 * This function returns a pointer to the first dmabuf in the sequence list that
14840 * the frame was linked to.
14841 **/
14842static struct hbq_dmabuf *
14843lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14844{
14845 struct fc_frame_header *new_hdr;
14846 struct fc_frame_header *temp_hdr;
14847 struct lpfc_dmabuf *d_buf;
14848 struct lpfc_dmabuf *h_buf;
14849 struct hbq_dmabuf *seq_dmabuf = NULL;
14850 struct hbq_dmabuf *temp_dmabuf = NULL;
14851
James Smart4d9ab992009-10-02 15:16:39 -040014852 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040014853 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040014854 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14855 /* Use the hdr_buf to find the sequence that this frame belongs to */
14856 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14857 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14858 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14859 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14860 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14861 continue;
14862 /* found a pending sequence that matches this frame */
14863 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14864 break;
14865 }
14866 if (!seq_dmabuf) {
14867 /*
14868 * This indicates first frame received for this sequence.
14869 * Queue the buffer on the vport's rcv_buffer_list.
14870 */
14871 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040014872 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040014873 return dmabuf;
14874 }
14875 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050014876 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14877 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040014878 list_del_init(&seq_dmabuf->hbuf.list);
14879 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14880 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040014881 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040014882 return dmabuf;
14883 }
James Smart45ed1192009-10-02 15:17:02 -040014884 /* move this sequence to the tail to indicate a young sequence */
14885 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14886 seq_dmabuf->time_stamp = jiffies;
14887 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050014888 if (list_empty(&seq_dmabuf->dbuf.list)) {
14889 temp_hdr = dmabuf->hbuf.virt;
14890 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14891 return seq_dmabuf;
14892 }
James Smart4f774512009-05-22 14:52:35 -040014893 /* find the correct place in the sequence to insert this frame */
14894 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14895 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14896 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14897 /*
14898 * If the frame's sequence count is greater than the frame on
14899 * the list then insert the frame right after this frame
14900 */
James Smarteeead812009-12-21 17:01:23 -050014901 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14902 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040014903 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14904 return seq_dmabuf;
14905 }
14906 }
14907 return NULL;
14908}
14909
14910/**
James Smart6669f9b2009-10-02 15:16:45 -040014911 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14912 * @vport: pointer to a vitural port
14913 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14914 *
14915 * This function tries to abort from the partially assembed sequence, described
14916 * by the information from basic abbort @dmabuf. It checks to see whether such
14917 * partially assembled sequence held by the driver. If so, it shall free up all
14918 * the frames from the partially assembled sequence.
14919 *
14920 * Return
14921 * true -- if there is matching partially assembled sequence present and all
14922 * the frames freed with the sequence;
14923 * false -- if there is no matching partially assembled sequence present so
14924 * nothing got aborted in the lower layer driver
14925 **/
14926static bool
14927lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14928 struct hbq_dmabuf *dmabuf)
14929{
14930 struct fc_frame_header *new_hdr;
14931 struct fc_frame_header *temp_hdr;
14932 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14933 struct hbq_dmabuf *seq_dmabuf = NULL;
14934
14935 /* Use the hdr_buf to find the sequence that matches this frame */
14936 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14937 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14938 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14939 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14940 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14941 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14942 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14943 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14944 continue;
14945 /* found a pending sequence that matches this frame */
14946 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14947 break;
14948 }
14949
14950 /* Free up all the frames from the partially assembled sequence */
14951 if (seq_dmabuf) {
14952 list_for_each_entry_safe(d_buf, n_buf,
14953 &seq_dmabuf->dbuf.list, list) {
14954 list_del_init(&d_buf->list);
14955 lpfc_in_buf_free(vport->phba, d_buf);
14956 }
14957 return true;
14958 }
14959 return false;
14960}
14961
14962/**
James Smart6dd9e312013-01-03 15:43:37 -050014963 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14964 * @vport: pointer to a vitural port
14965 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14966 *
14967 * This function tries to abort from the assembed sequence from upper level
14968 * protocol, described by the information from basic abbort @dmabuf. It
14969 * checks to see whether such pending context exists at upper level protocol.
14970 * If so, it shall clean up the pending context.
14971 *
14972 * Return
14973 * true -- if there is matching pending context of the sequence cleaned
14974 * at ulp;
14975 * false -- if there is no matching pending context of the sequence present
14976 * at ulp.
14977 **/
14978static bool
14979lpfc_sli4_abort_ulp_seq(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
14980{
14981 struct lpfc_hba *phba = vport->phba;
14982 int handled;
14983
14984 /* Accepting abort at ulp with SLI4 only */
14985 if (phba->sli_rev < LPFC_SLI_REV4)
14986 return false;
14987
14988 /* Register all caring upper level protocols to attend abort */
14989 handled = lpfc_ct_handle_unsol_abort(phba, dmabuf);
14990 if (handled)
14991 return true;
14992
14993 return false;
14994}
14995
14996/**
James Smart546fc852011-03-11 16:06:29 -050014997 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
James Smart6669f9b2009-10-02 15:16:45 -040014998 * @phba: Pointer to HBA context object.
14999 * @cmd_iocbq: pointer to the command iocbq structure.
15000 * @rsp_iocbq: pointer to the response iocbq structure.
15001 *
James Smart546fc852011-03-11 16:06:29 -050015002 * This function handles the sequence abort response iocb command complete
James Smart6669f9b2009-10-02 15:16:45 -040015003 * event. It properly releases the memory allocated to the sequence abort
15004 * accept iocb.
15005 **/
15006static void
James Smart546fc852011-03-11 16:06:29 -050015007lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
James Smart6669f9b2009-10-02 15:16:45 -040015008 struct lpfc_iocbq *cmd_iocbq,
15009 struct lpfc_iocbq *rsp_iocbq)
15010{
James Smart6dd9e312013-01-03 15:43:37 -050015011 struct lpfc_nodelist *ndlp;
15012
15013 if (cmd_iocbq) {
15014 ndlp = (struct lpfc_nodelist *)cmd_iocbq->context1;
15015 lpfc_nlp_put(ndlp);
15016 lpfc_nlp_not_used(ndlp);
James Smart6669f9b2009-10-02 15:16:45 -040015017 lpfc_sli_release_iocbq(phba, cmd_iocbq);
James Smart6dd9e312013-01-03 15:43:37 -050015018 }
James Smart6b5151f2012-01-18 16:24:06 -050015019
15020 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15021 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
15022 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15023 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15024 rsp_iocbq->iocb.ulpStatus,
15025 rsp_iocbq->iocb.un.ulpWord[4]);
James Smart6669f9b2009-10-02 15:16:45 -040015026}
15027
15028/**
James Smart6d368e52011-05-24 11:44:12 -040015029 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15030 * @phba: Pointer to HBA context object.
15031 * @xri: xri id in transaction.
15032 *
15033 * This function validates the xri maps to the known range of XRIs allocated an
15034 * used by the driver.
15035 **/
James Smart7851fe22011-07-22 18:36:52 -040015036uint16_t
James Smart6d368e52011-05-24 11:44:12 -040015037lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
15038 uint16_t xri)
15039{
James Smarta2fc4aef2014-09-03 12:57:55 -040015040 uint16_t i;
James Smart6d368e52011-05-24 11:44:12 -040015041
15042 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
15043 if (xri == phba->sli4_hba.xri_ids[i])
15044 return i;
15045 }
15046 return NO_XRI;
15047}
15048
James Smart6d368e52011-05-24 11:44:12 -040015049/**
James Smart546fc852011-03-11 16:06:29 -050015050 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040015051 * @phba: Pointer to HBA context object.
15052 * @fc_hdr: pointer to a FC frame header.
15053 *
James Smart546fc852011-03-11 16:06:29 -050015054 * This function sends a basic response to a previous unsol sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040015055 * event after aborting the sequence handling.
15056 **/
15057static void
James Smart6dd9e312013-01-03 15:43:37 -050015058lpfc_sli4_seq_abort_rsp(struct lpfc_vport *vport,
15059 struct fc_frame_header *fc_hdr, bool aborted)
James Smart6669f9b2009-10-02 15:16:45 -040015060{
James Smart6dd9e312013-01-03 15:43:37 -050015061 struct lpfc_hba *phba = vport->phba;
James Smart6669f9b2009-10-02 15:16:45 -040015062 struct lpfc_iocbq *ctiocb = NULL;
15063 struct lpfc_nodelist *ndlp;
James Smartee0f4fe2012-05-09 21:19:14 -040015064 uint16_t oxid, rxid, xri, lxri;
James Smart5ffc2662009-11-18 15:39:44 -050015065 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040015066 IOCB_t *icmd;
James Smart546fc852011-03-11 16:06:29 -050015067 int rc;
James Smart6669f9b2009-10-02 15:16:45 -040015068
15069 if (!lpfc_is_link_up(phba))
15070 return;
15071
15072 sid = sli4_sid_from_fc_hdr(fc_hdr);
15073 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050015074 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040015075
James Smart6dd9e312013-01-03 15:43:37 -050015076 ndlp = lpfc_findnode_did(vport, sid);
James Smart6669f9b2009-10-02 15:16:45 -040015077 if (!ndlp) {
James Smart6dd9e312013-01-03 15:43:37 -050015078 ndlp = mempool_alloc(phba->nlp_mem_pool, GFP_KERNEL);
15079 if (!ndlp) {
15080 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15081 "1268 Failed to allocate ndlp for "
15082 "oxid:x%x SID:x%x\n", oxid, sid);
15083 return;
15084 }
15085 lpfc_nlp_init(vport, ndlp, sid);
15086 /* Put ndlp onto pport node list */
15087 lpfc_enqueue_node(vport, ndlp);
15088 } else if (!NLP_CHK_NODE_ACT(ndlp)) {
15089 /* re-setup ndlp without removing from node list */
15090 ndlp = lpfc_enable_node(vport, ndlp, NLP_STE_UNUSED_NODE);
15091 if (!ndlp) {
15092 lpfc_printf_vlog(vport, KERN_WARNING, LOG_ELS,
15093 "3275 Failed to active ndlp found "
15094 "for oxid:x%x SID:x%x\n", oxid, sid);
15095 return;
15096 }
James Smart6669f9b2009-10-02 15:16:45 -040015097 }
15098
James Smart546fc852011-03-11 16:06:29 -050015099 /* Allocate buffer for rsp iocb */
James Smart6669f9b2009-10-02 15:16:45 -040015100 ctiocb = lpfc_sli_get_iocbq(phba);
15101 if (!ctiocb)
15102 return;
15103
James Smart5ffc2662009-11-18 15:39:44 -050015104 /* Extract the F_CTL field from FC_HDR */
15105 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
15106
James Smart6669f9b2009-10-02 15:16:45 -040015107 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040015108 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050015109 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040015110 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
15111 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
15112 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
15113
15114 /* Fill in the rest of iocb fields */
15115 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
15116 icmd->ulpBdeCount = 0;
15117 icmd->ulpLe = 1;
15118 icmd->ulpClass = CLASS3;
James Smart6d368e52011-05-24 11:44:12 -040015119 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
James Smart6dd9e312013-01-03 15:43:37 -050015120 ctiocb->context1 = lpfc_nlp_get(ndlp);
James Smart6669f9b2009-10-02 15:16:45 -040015121
James Smart6669f9b2009-10-02 15:16:45 -040015122 ctiocb->iocb_cmpl = NULL;
15123 ctiocb->vport = phba->pport;
James Smart546fc852011-03-11 16:06:29 -050015124 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
James Smart6d368e52011-05-24 11:44:12 -040015125 ctiocb->sli4_lxritag = NO_XRI;
James Smart546fc852011-03-11 16:06:29 -050015126 ctiocb->sli4_xritag = NO_XRI;
15127
James Smartee0f4fe2012-05-09 21:19:14 -040015128 if (fctl & FC_FC_EX_CTX)
15129 /* Exchange responder sent the abort so we
15130 * own the oxid.
15131 */
15132 xri = oxid;
15133 else
15134 xri = rxid;
15135 lxri = lpfc_sli4_xri_inrange(phba, xri);
15136 if (lxri != NO_XRI)
15137 lpfc_set_rrq_active(phba, ndlp, lxri,
15138 (xri == oxid) ? rxid : oxid, 0);
James Smart6dd9e312013-01-03 15:43:37 -050015139 /* For BA_ABTS from exchange responder, if the logical xri with
15140 * the oxid maps to the FCP XRI range, the port no longer has
15141 * that exchange context, send a BLS_RJT. Override the IOCB for
15142 * a BA_RJT.
James Smart546fc852011-03-11 16:06:29 -050015143 */
James Smart6dd9e312013-01-03 15:43:37 -050015144 if ((fctl & FC_FC_EX_CTX) &&
15145 (lxri > lpfc_sli4_get_els_iocb_cnt(phba))) {
15146 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15147 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15148 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15149 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15150 }
15151
15152 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15153 * the driver no longer has that exchange, send a BLS_RJT. Override
15154 * the IOCB for a BA_RJT.
15155 */
15156 if (aborted == false) {
James Smart546fc852011-03-11 16:06:29 -050015157 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
15158 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
15159 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
15160 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
15161 }
James Smart6669f9b2009-10-02 15:16:45 -040015162
James Smart5ffc2662009-11-18 15:39:44 -050015163 if (fctl & FC_FC_EX_CTX) {
15164 /* ABTS sent by responder to CT exchange, construction
15165 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15166 * field and RX_ID from ABTS for RX_ID field.
15167 */
James Smart546fc852011-03-11 16:06:29 -050015168 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
James Smart5ffc2662009-11-18 15:39:44 -050015169 } else {
15170 /* ABTS sent by initiator to CT exchange, construction
15171 * of BA_ACC will need to allocate a new XRI as for the
James Smartf09c3ac2012-03-01 22:33:29 -050015172 * XRI_TAG field.
James Smart5ffc2662009-11-18 15:39:44 -050015173 */
James Smart546fc852011-03-11 16:06:29 -050015174 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
James Smart5ffc2662009-11-18 15:39:44 -050015175 }
James Smartf09c3ac2012-03-01 22:33:29 -050015176 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
James Smart546fc852011-03-11 16:06:29 -050015177 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
James Smart5ffc2662009-11-18 15:39:44 -050015178
James Smart546fc852011-03-11 16:06:29 -050015179 /* Xmit CT abts response on exchange <xid> */
James Smart6dd9e312013-01-03 15:43:37 -050015180 lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
15181 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15182 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
James Smart546fc852011-03-11 16:06:29 -050015183
15184 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
15185 if (rc == IOCB_ERROR) {
James Smart6dd9e312013-01-03 15:43:37 -050015186 lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
15187 "2925 Failed to issue CT ABTS RSP x%x on "
15188 "xri x%x, Data x%x\n",
15189 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
15190 phba->link_state);
15191 lpfc_nlp_put(ndlp);
15192 ctiocb->context1 = NULL;
James Smart546fc852011-03-11 16:06:29 -050015193 lpfc_sli_release_iocbq(phba, ctiocb);
15194 }
James Smart6669f9b2009-10-02 15:16:45 -040015195}
15196
15197/**
15198 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15199 * @vport: Pointer to the vport on which this sequence was received
15200 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15201 *
15202 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15203 * receive sequence is only partially assembed by the driver, it shall abort
15204 * the partially assembled frames for the sequence. Otherwise, if the
15205 * unsolicited receive sequence has been completely assembled and passed to
15206 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15207 * unsolicited sequence has been aborted. After that, it will issue a basic
15208 * accept to accept the abort.
15209 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040015210static void
James Smart6669f9b2009-10-02 15:16:45 -040015211lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
15212 struct hbq_dmabuf *dmabuf)
15213{
15214 struct lpfc_hba *phba = vport->phba;
15215 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050015216 uint32_t fctl;
James Smart6dd9e312013-01-03 15:43:37 -050015217 bool aborted;
James Smart6669f9b2009-10-02 15:16:45 -040015218
James Smart6669f9b2009-10-02 15:16:45 -040015219 /* Make a copy of fc_hdr before the dmabuf being released */
15220 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050015221 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040015222
James Smart5ffc2662009-11-18 15:39:44 -050015223 if (fctl & FC_FC_EX_CTX) {
James Smart6dd9e312013-01-03 15:43:37 -050015224 /* ABTS by responder to exchange, no cleanup needed */
15225 aborted = true;
James Smart5ffc2662009-11-18 15:39:44 -050015226 } else {
James Smart6dd9e312013-01-03 15:43:37 -050015227 /* ABTS by initiator to exchange, need to do cleanup */
15228 aborted = lpfc_sli4_abort_partial_seq(vport, dmabuf);
15229 if (aborted == false)
15230 aborted = lpfc_sli4_abort_ulp_seq(vport, dmabuf);
James Smart5ffc2662009-11-18 15:39:44 -050015231 }
James Smart6dd9e312013-01-03 15:43:37 -050015232 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15233
15234 /* Respond with BA_ACC or BA_RJT accordingly */
15235 lpfc_sli4_seq_abort_rsp(vport, &fc_hdr, aborted);
James Smart6669f9b2009-10-02 15:16:45 -040015236}
15237
15238/**
James Smart4f774512009-05-22 14:52:35 -040015239 * lpfc_seq_complete - Indicates if a sequence is complete
15240 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15241 *
15242 * This function checks the sequence, starting with the frame described by
15243 * @dmabuf, to see if all the frames associated with this sequence are present.
15244 * the frames associated with this sequence are linked to the @dmabuf using the
15245 * dbuf list. This function looks for two major things. 1) That the first frame
15246 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15247 * set. 3) That there are no holes in the sequence count. The function will
15248 * return 1 when the sequence is complete, otherwise it will return 0.
15249 **/
15250static int
15251lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
15252{
15253 struct fc_frame_header *hdr;
15254 struct lpfc_dmabuf *d_buf;
15255 struct hbq_dmabuf *seq_dmabuf;
15256 uint32_t fctl;
15257 int seq_count = 0;
15258
15259 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15260 /* make sure first fame of sequence has a sequence count of zero */
15261 if (hdr->fh_seq_cnt != seq_count)
15262 return 0;
15263 fctl = (hdr->fh_f_ctl[0] << 16 |
15264 hdr->fh_f_ctl[1] << 8 |
15265 hdr->fh_f_ctl[2]);
15266 /* If last frame of sequence we can return success. */
15267 if (fctl & FC_FC_END_SEQ)
15268 return 1;
15269 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
15270 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15271 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15272 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050015273 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040015274 return 0;
15275 fctl = (hdr->fh_f_ctl[0] << 16 |
15276 hdr->fh_f_ctl[1] << 8 |
15277 hdr->fh_f_ctl[2]);
15278 /* If last frame of sequence we can return success. */
15279 if (fctl & FC_FC_END_SEQ)
15280 return 1;
15281 }
15282 return 0;
15283}
15284
15285/**
15286 * lpfc_prep_seq - Prep sequence for ULP processing
15287 * @vport: Pointer to the vport on which this sequence was received
15288 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15289 *
15290 * This function takes a sequence, described by a list of frames, and creates
15291 * a list of iocbq structures to describe the sequence. This iocbq list will be
15292 * used to issue to the generic unsolicited sequence handler. This routine
15293 * returns a pointer to the first iocbq in the list. If the function is unable
15294 * to allocate an iocbq then it throw out the received frames that were not
15295 * able to be described and return a pointer to the first iocbq. If unable to
15296 * allocate any iocbqs (including the first) this function will return NULL.
15297 **/
15298static struct lpfc_iocbq *
15299lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
15300{
James Smart7851fe22011-07-22 18:36:52 -040015301 struct hbq_dmabuf *hbq_buf;
James Smart4f774512009-05-22 14:52:35 -040015302 struct lpfc_dmabuf *d_buf, *n_buf;
15303 struct lpfc_iocbq *first_iocbq, *iocbq;
15304 struct fc_frame_header *fc_hdr;
15305 uint32_t sid;
James Smart7851fe22011-07-22 18:36:52 -040015306 uint32_t len, tot_len;
James Smarteeead812009-12-21 17:01:23 -050015307 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040015308
15309 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15310 /* remove from receive buffer list */
15311 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040015312 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040015313 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040015314 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart7851fe22011-07-22 18:36:52 -040015315 tot_len = 0;
James Smart4f774512009-05-22 14:52:35 -040015316 /* Get an iocbq struct to fill in. */
15317 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
15318 if (first_iocbq) {
15319 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040015320 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040015321 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
James Smart939723a2012-05-09 21:19:03 -040015322
15323 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15324 if (sli4_type_from_fc_hdr(fc_hdr) == FC_TYPE_ELS) {
15325 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_ELS64_CX;
15326 first_iocbq->iocb.un.rcvels.parmRo =
15327 sli4_did_from_fc_hdr(fc_hdr);
15328 first_iocbq->iocb.ulpPU = PARM_NPIV_DID;
15329 } else
15330 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
James Smart7851fe22011-07-22 18:36:52 -040015331 first_iocbq->iocb.ulpContext = NO_XRI;
15332 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
15333 be16_to_cpu(fc_hdr->fh_ox_id);
15334 /* iocbq is prepped for internal consumption. Physical vpi. */
15335 first_iocbq->iocb.unsli3.rcvsli3.vpi =
15336 vport->phba->vpi_ids[vport->vpi];
James Smart4f774512009-05-22 14:52:35 -040015337 /* put the first buffer into the first IOCBq */
James Smart48a5a662013-07-15 18:32:28 -040015338 tot_len = bf_get(lpfc_rcqe_length,
15339 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
15340
James Smart4f774512009-05-22 14:52:35 -040015341 first_iocbq->context2 = &seq_dmabuf->dbuf;
15342 first_iocbq->context3 = NULL;
15343 first_iocbq->iocb.ulpBdeCount = 1;
James Smart48a5a662013-07-15 18:32:28 -040015344 if (tot_len > LPFC_DATA_BUF_SIZE)
15345 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
James Smart4f774512009-05-22 14:52:35 -040015346 LPFC_DATA_BUF_SIZE;
James Smart48a5a662013-07-15 18:32:28 -040015347 else
15348 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize = tot_len;
15349
James Smart4f774512009-05-22 14:52:35 -040015350 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart48a5a662013-07-15 18:32:28 -040015351
James Smart7851fe22011-07-22 18:36:52 -040015352 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
James Smart4f774512009-05-22 14:52:35 -040015353 }
15354 iocbq = first_iocbq;
15355 /*
15356 * Each IOCBq can have two Buffers assigned, so go through the list
15357 * of buffers for this sequence and save two buffers in each IOCBq
15358 */
15359 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
15360 if (!iocbq) {
15361 lpfc_in_buf_free(vport->phba, d_buf);
15362 continue;
15363 }
15364 if (!iocbq->context3) {
15365 iocbq->context3 = d_buf;
15366 iocbq->iocb.ulpBdeCount++;
James Smart7851fe22011-07-22 18:36:52 -040015367 /* We need to get the size out of the right CQE */
15368 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15369 len = bf_get(lpfc_rcqe_length,
15370 &hbq_buf->cq_event.cqe.rcqe_cmpl);
James Smart48a5a662013-07-15 18:32:28 -040015371 pbde = (struct ulp_bde64 *)
15372 &iocbq->iocb.unsli3.sli3Words[4];
15373 if (len > LPFC_DATA_BUF_SIZE)
15374 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
15375 else
15376 pbde->tus.f.bdeSize = len;
15377
James Smart7851fe22011-07-22 18:36:52 -040015378 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
15379 tot_len += len;
James Smart4f774512009-05-22 14:52:35 -040015380 } else {
15381 iocbq = lpfc_sli_get_iocbq(vport->phba);
15382 if (!iocbq) {
15383 if (first_iocbq) {
15384 first_iocbq->iocb.ulpStatus =
15385 IOSTAT_FCP_RSP_ERROR;
15386 first_iocbq->iocb.un.ulpWord[4] =
15387 IOERR_NO_RESOURCES;
15388 }
15389 lpfc_in_buf_free(vport->phba, d_buf);
15390 continue;
15391 }
James Smart7851fe22011-07-22 18:36:52 -040015392 /* We need to get the size out of the right CQE */
15393 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
15394 len = bf_get(lpfc_rcqe_length,
15395 &hbq_buf->cq_event.cqe.rcqe_cmpl);
James Smart48a5a662013-07-15 18:32:28 -040015396 iocbq->context2 = d_buf;
15397 iocbq->context3 = NULL;
15398 iocbq->iocb.ulpBdeCount = 1;
15399 if (len > LPFC_DATA_BUF_SIZE)
15400 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
15401 LPFC_DATA_BUF_SIZE;
15402 else
15403 iocbq->iocb.un.cont64[0].tus.f.bdeSize = len;
15404
James Smart7851fe22011-07-22 18:36:52 -040015405 tot_len += len;
15406 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
15407
James Smart4f774512009-05-22 14:52:35 -040015408 iocbq->iocb.un.rcvels.remoteID = sid;
15409 list_add_tail(&iocbq->list, &first_iocbq->list);
15410 }
15411 }
15412 return first_iocbq;
15413}
15414
James Smart6669f9b2009-10-02 15:16:45 -040015415static void
15416lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
15417 struct hbq_dmabuf *seq_dmabuf)
15418{
15419 struct fc_frame_header *fc_hdr;
15420 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
15421 struct lpfc_hba *phba = vport->phba;
15422
15423 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
15424 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
15425 if (!iocbq) {
15426 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15427 "2707 Ring %d handler: Failed to allocate "
15428 "iocb Rctl x%x Type x%x received\n",
15429 LPFC_ELS_RING,
15430 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15431 return;
15432 }
15433 if (!lpfc_complete_unsol_iocb(phba,
15434 &phba->sli.ring[LPFC_ELS_RING],
15435 iocbq, fc_hdr->fh_r_ctl,
15436 fc_hdr->fh_type))
James Smart6d368e52011-05-24 11:44:12 -040015437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart6669f9b2009-10-02 15:16:45 -040015438 "2540 Ring %d handler: unexpected Rctl "
15439 "x%x Type x%x received\n",
15440 LPFC_ELS_RING,
15441 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
15442
15443 /* Free iocb created in lpfc_prep_seq */
15444 list_for_each_entry_safe(curr_iocb, next_iocb,
15445 &iocbq->list, list) {
15446 list_del_init(&curr_iocb->list);
15447 lpfc_sli_release_iocbq(phba, curr_iocb);
15448 }
15449 lpfc_sli_release_iocbq(phba, iocbq);
15450}
15451
James Smart4f774512009-05-22 14:52:35 -040015452/**
15453 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15454 * @phba: Pointer to HBA context object.
15455 *
15456 * This function is called with no lock held. This function processes all
15457 * the received buffers and gives it to upper layers when a received buffer
15458 * indicates that it is the final frame in the sequence. The interrupt
15459 * service routine processes received buffers at interrupt contexts and adds
15460 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15461 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15462 * appropriate receive function when the final frame in a sequence is received.
15463 **/
James Smart4d9ab992009-10-02 15:16:39 -040015464void
15465lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
15466 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040015467{
James Smart4d9ab992009-10-02 15:16:39 -040015468 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040015469 struct fc_frame_header *fc_hdr;
15470 struct lpfc_vport *vport;
15471 uint32_t fcfi;
James Smart939723a2012-05-09 21:19:03 -040015472 uint32_t did;
James Smart4f774512009-05-22 14:52:35 -040015473
James Smart4f774512009-05-22 14:52:35 -040015474 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040015475 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
15476 /* check to see if this a valid type of frame */
15477 if (lpfc_fc_frame_check(phba, fc_hdr)) {
15478 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15479 return;
15480 }
James Smart7851fe22011-07-22 18:36:52 -040015481 if ((bf_get(lpfc_cqe_code,
15482 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
15483 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
15484 &dmabuf->cq_event.cqe.rcqe_cmpl);
15485 else
15486 fcfi = bf_get(lpfc_rcqe_fcf_id,
15487 &dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart939723a2012-05-09 21:19:03 -040015488
James Smart4d9ab992009-10-02 15:16:39 -040015489 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
James Smart939723a2012-05-09 21:19:03 -040015490 if (!vport) {
James Smart4d9ab992009-10-02 15:16:39 -040015491 /* throw out the frame */
15492 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15493 return;
15494 }
James Smart939723a2012-05-09 21:19:03 -040015495
15496 /* d_id this frame is directed to */
15497 did = sli4_did_from_fc_hdr(fc_hdr);
15498
15499 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15500 if (!(vport->vpi_state & LPFC_VPI_REGISTERED) &&
15501 (did != Fabric_DID)) {
15502 /*
15503 * Throw out the frame if we are not pt2pt.
15504 * The pt2pt protocol allows for discovery frames
15505 * to be received without a registered VPI.
15506 */
15507 if (!(vport->fc_flag & FC_PT2PT) ||
15508 (phba->link_state == LPFC_HBA_READY)) {
15509 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15510 return;
15511 }
15512 }
15513
James Smart6669f9b2009-10-02 15:16:45 -040015514 /* Handle the basic abort sequence (BA_ABTS) event */
15515 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
15516 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
15517 return;
15518 }
15519
James Smart4d9ab992009-10-02 15:16:39 -040015520 /* Link this frame */
15521 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
15522 if (!seq_dmabuf) {
15523 /* unable to add frame to vport - throw it out */
15524 lpfc_in_buf_free(phba, &dmabuf->dbuf);
15525 return;
15526 }
15527 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050015528 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040015529 return;
James Smartdef9c7a2009-12-21 17:02:28 -050015530
James Smart6669f9b2009-10-02 15:16:45 -040015531 /* Send the complete sequence to the upper layer protocol */
15532 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040015533}
James Smart6fb120a2009-05-22 14:52:59 -040015534
15535/**
15536 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15537 * @phba: pointer to lpfc hba data structure.
15538 *
15539 * This routine is invoked to post rpi header templates to the
15540 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040015541 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15542 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040015543 *
15544 * This routine does not require any locks. It's usage is expected
15545 * to be driver load or reset recovery when the driver is
15546 * sequential.
15547 *
15548 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020015549 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040015550 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040015551 * When this error occurs, the driver is not guaranteed
15552 * to have any rpi regions posted to the device and
15553 * must either attempt to repost the regions or take a
15554 * fatal error.
15555 **/
15556int
15557lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
15558{
15559 struct lpfc_rpi_hdr *rpi_page;
15560 uint32_t rc = 0;
James Smart6d368e52011-05-24 11:44:12 -040015561 uint16_t lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040015562
James Smart6d368e52011-05-24 11:44:12 -040015563 /* SLI4 ports that support extents do not require RPI headers. */
15564 if (!phba->sli4_hba.rpi_hdrs_in_use)
15565 goto exit;
15566 if (phba->sli4_hba.extents_in_use)
15567 return -EIO;
15568
James Smart6fb120a2009-05-22 14:52:59 -040015569 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
James Smart6d368e52011-05-24 11:44:12 -040015570 /*
15571 * Assign the rpi headers a physical rpi only if the driver
15572 * has not initialized those resources. A port reset only
15573 * needs the headers posted.
15574 */
15575 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
15576 LPFC_RPI_RSRC_RDY)
15577 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
15578
James Smart6fb120a2009-05-22 14:52:59 -040015579 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
15580 if (rc != MBX_SUCCESS) {
15581 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15582 "2008 Error %d posting all rpi "
15583 "headers\n", rc);
15584 rc = -EIO;
15585 break;
15586 }
15587 }
15588
James Smart6d368e52011-05-24 11:44:12 -040015589 exit:
15590 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
15591 LPFC_RPI_RSRC_RDY);
James Smart6fb120a2009-05-22 14:52:59 -040015592 return rc;
15593}
15594
15595/**
15596 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15597 * @phba: pointer to lpfc hba data structure.
15598 * @rpi_page: pointer to the rpi memory region.
15599 *
15600 * This routine is invoked to post a single rpi header to the
15601 * HBA consistent with the SLI-4 interface spec. This memory region
15602 * maps up to 64 rpi context regions.
15603 *
15604 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020015605 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040015606 * -ENOMEM - No available memory
15607 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040015608 **/
15609int
15610lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
15611{
15612 LPFC_MBOXQ_t *mboxq;
15613 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
15614 uint32_t rc = 0;
James Smart6fb120a2009-05-22 14:52:59 -040015615 uint32_t shdr_status, shdr_add_status;
15616 union lpfc_sli4_cfg_shdr *shdr;
15617
James Smart6d368e52011-05-24 11:44:12 -040015618 /* SLI4 ports that support extents do not require RPI headers. */
15619 if (!phba->sli4_hba.rpi_hdrs_in_use)
15620 return rc;
15621 if (phba->sli4_hba.extents_in_use)
15622 return -EIO;
15623
James Smart6fb120a2009-05-22 14:52:59 -040015624 /* The port is notified of the header region via a mailbox command. */
15625 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15626 if (!mboxq) {
15627 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15628 "2001 Unable to allocate memory for issuing "
15629 "SLI_CONFIG_SPECIAL mailbox command\n");
15630 return -ENOMEM;
15631 }
15632
15633 /* Post all rpi memory regions to the port. */
15634 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
James Smart6fb120a2009-05-22 14:52:59 -040015635 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15636 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
15637 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
James Smartfedd3b72011-02-16 12:39:24 -050015638 sizeof(struct lpfc_sli4_cfg_mhdr),
15639 LPFC_SLI4_MBX_EMBED);
James Smart6d368e52011-05-24 11:44:12 -040015640
15641
15642 /* Post the physical rpi to the port for this rpi header. */
James Smart6fb120a2009-05-22 14:52:59 -040015643 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
15644 rpi_page->start_rpi);
James Smart6d368e52011-05-24 11:44:12 -040015645 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
15646 hdr_tmpl, rpi_page->page_count);
15647
James Smart6fb120a2009-05-22 14:52:59 -040015648 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
15649 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040015650 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040015651 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
15652 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15653 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15654 if (rc != MBX_TIMEOUT)
15655 mempool_free(mboxq, phba->mbox_mem_pool);
15656 if (shdr_status || shdr_add_status || rc) {
15657 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15658 "2514 POST_RPI_HDR mailbox failed with "
15659 "status x%x add_status x%x, mbx status x%x\n",
15660 shdr_status, shdr_add_status, rc);
15661 rc = -ENXIO;
15662 }
15663 return rc;
15664}
15665
15666/**
15667 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15668 * @phba: pointer to lpfc hba data structure.
15669 *
15670 * This routine is invoked to post rpi header templates to the
15671 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040015672 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15673 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040015674 *
15675 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020015676 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040015677 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15678 **/
15679int
15680lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
15681{
James Smart6d368e52011-05-24 11:44:12 -040015682 unsigned long rpi;
15683 uint16_t max_rpi, rpi_limit;
15684 uint16_t rpi_remaining, lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040015685 struct lpfc_rpi_hdr *rpi_hdr;
James Smart4902b382013-10-10 12:20:35 -040015686 unsigned long iflag;
James Smart6fb120a2009-05-22 14:52:59 -040015687
James Smart6fb120a2009-05-22 14:52:59 -040015688 /*
James Smart6d368e52011-05-24 11:44:12 -040015689 * Fetch the next logical rpi. Because this index is logical,
15690 * the driver starts at 0 each time.
James Smart6fb120a2009-05-22 14:52:59 -040015691 */
James Smart4902b382013-10-10 12:20:35 -040015692 spin_lock_irqsave(&phba->hbalock, iflag);
James Smartbe6bb942015-04-07 15:07:22 -040015693 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
15694 rpi_limit = phba->sli4_hba.next_rpi;
15695
James Smart6d368e52011-05-24 11:44:12 -040015696 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
15697 if (rpi >= rpi_limit)
James Smart6fb120a2009-05-22 14:52:59 -040015698 rpi = LPFC_RPI_ALLOC_ERROR;
15699 else {
15700 set_bit(rpi, phba->sli4_hba.rpi_bmask);
15701 phba->sli4_hba.max_cfg_param.rpi_used++;
15702 phba->sli4_hba.rpi_count++;
15703 }
James Smartbe6bb942015-04-07 15:07:22 -040015704 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
15705 "0001 rpi:%x max:%x lim:%x\n",
15706 (int) rpi, max_rpi, rpi_limit);
James Smart6fb120a2009-05-22 14:52:59 -040015707
15708 /*
15709 * Don't try to allocate more rpi header regions if the device limit
James Smart6d368e52011-05-24 11:44:12 -040015710 * has been exhausted.
James Smart6fb120a2009-05-22 14:52:59 -040015711 */
15712 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
15713 (phba->sli4_hba.rpi_count >= max_rpi)) {
James Smart4902b382013-10-10 12:20:35 -040015714 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6fb120a2009-05-22 14:52:59 -040015715 return rpi;
15716 }
15717
15718 /*
James Smart6d368e52011-05-24 11:44:12 -040015719 * RPI header postings are not required for SLI4 ports capable of
15720 * extents.
15721 */
15722 if (!phba->sli4_hba.rpi_hdrs_in_use) {
James Smart4902b382013-10-10 12:20:35 -040015723 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6d368e52011-05-24 11:44:12 -040015724 return rpi;
15725 }
15726
15727 /*
James Smart6fb120a2009-05-22 14:52:59 -040015728 * If the driver is running low on rpi resources, allocate another
15729 * page now. Note that the next_rpi value is used because
15730 * it represents how many are actually in use whereas max_rpi notes
15731 * how many are supported max by the device.
15732 */
James Smart6d368e52011-05-24 11:44:12 -040015733 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
James Smart4902b382013-10-10 12:20:35 -040015734 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart6fb120a2009-05-22 14:52:59 -040015735 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
15736 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
15737 if (!rpi_hdr) {
15738 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15739 "2002 Error Could not grow rpi "
15740 "count\n");
15741 } else {
James Smart6d368e52011-05-24 11:44:12 -040015742 lrpi = rpi_hdr->start_rpi;
15743 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
James Smart6fb120a2009-05-22 14:52:59 -040015744 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
15745 }
15746 }
15747
15748 return rpi;
15749}
15750
15751/**
15752 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15753 * @phba: pointer to lpfc hba data structure.
15754 *
15755 * This routine is invoked to release an rpi to the pool of
15756 * available rpis maintained by the driver.
15757 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040015758static void
James Smartd7c47992010-06-08 18:31:54 -040015759__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15760{
15761 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
15762 phba->sli4_hba.rpi_count--;
15763 phba->sli4_hba.max_cfg_param.rpi_used--;
15764 }
15765}
15766
15767/**
15768 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15769 * @phba: pointer to lpfc hba data structure.
15770 *
15771 * This routine is invoked to release an rpi to the pool of
15772 * available rpis maintained by the driver.
15773 **/
15774void
James Smart6fb120a2009-05-22 14:52:59 -040015775lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
15776{
15777 spin_lock_irq(&phba->hbalock);
James Smartd7c47992010-06-08 18:31:54 -040015778 __lpfc_sli4_free_rpi(phba, rpi);
James Smart6fb120a2009-05-22 14:52:59 -040015779 spin_unlock_irq(&phba->hbalock);
15780}
15781
15782/**
15783 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15784 * @phba: pointer to lpfc hba data structure.
15785 *
15786 * This routine is invoked to remove the memory region that
15787 * provided rpi via a bitmask.
15788 **/
15789void
15790lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
15791{
15792 kfree(phba->sli4_hba.rpi_bmask);
James Smart6d368e52011-05-24 11:44:12 -040015793 kfree(phba->sli4_hba.rpi_ids);
15794 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
James Smart6fb120a2009-05-22 14:52:59 -040015795}
15796
15797/**
15798 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15799 * @phba: pointer to lpfc hba data structure.
15800 *
15801 * This routine is invoked to remove the memory region that
15802 * provided rpi via a bitmask.
15803 **/
15804int
James Smart6b5151f2012-01-18 16:24:06 -050015805lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
15806 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
James Smart6fb120a2009-05-22 14:52:59 -040015807{
15808 LPFC_MBOXQ_t *mboxq;
15809 struct lpfc_hba *phba = ndlp->phba;
15810 int rc;
15811
15812 /* The port is notified of the header region via a mailbox command. */
15813 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15814 if (!mboxq)
15815 return -ENOMEM;
15816
15817 /* Post all rpi memory regions to the port. */
15818 lpfc_resume_rpi(mboxq, ndlp);
James Smart6b5151f2012-01-18 16:24:06 -050015819 if (cmpl) {
15820 mboxq->mbox_cmpl = cmpl;
15821 mboxq->context1 = arg;
15822 mboxq->context2 = ndlp;
James Smart72859902012-01-18 16:25:38 -050015823 } else
15824 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart6b5151f2012-01-18 16:24:06 -050015825 mboxq->vport = ndlp->vport;
James Smart6fb120a2009-05-22 14:52:59 -040015826 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15827 if (rc == MBX_NOT_FINISHED) {
15828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15829 "2010 Resume RPI Mailbox failed "
15830 "status %d, mbxStatus x%x\n", rc,
15831 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
15832 mempool_free(mboxq, phba->mbox_mem_pool);
15833 return -EIO;
15834 }
15835 return 0;
15836}
15837
15838/**
15839 * lpfc_sli4_init_vpi - Initialize a vpi with the port
James Smart76a95d72010-11-20 23:11:48 -050015840 * @vport: Pointer to the vport for which the vpi is being initialized
James Smart6fb120a2009-05-22 14:52:59 -040015841 *
James Smart76a95d72010-11-20 23:11:48 -050015842 * This routine is invoked to activate a vpi with the port.
James Smart6fb120a2009-05-22 14:52:59 -040015843 *
15844 * Returns:
15845 * 0 success
15846 * -Evalue otherwise
15847 **/
15848int
James Smart76a95d72010-11-20 23:11:48 -050015849lpfc_sli4_init_vpi(struct lpfc_vport *vport)
James Smart6fb120a2009-05-22 14:52:59 -040015850{
15851 LPFC_MBOXQ_t *mboxq;
15852 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040015853 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040015854 uint32_t mbox_tmo;
James Smart76a95d72010-11-20 23:11:48 -050015855 struct lpfc_hba *phba = vport->phba;
James Smart6fb120a2009-05-22 14:52:59 -040015856 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15857 if (!mboxq)
15858 return -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -050015859 lpfc_init_vpi(phba, mboxq, vport->vpi);
James Smarta183a152011-10-10 21:32:43 -040015860 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
James Smart6fb120a2009-05-22 14:52:59 -040015861 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040015862 if (rc != MBX_SUCCESS) {
James Smart76a95d72010-11-20 23:11:48 -050015863 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
James Smart6fb120a2009-05-22 14:52:59 -040015864 "2022 INIT VPI Mailbox failed "
15865 "status %d, mbxStatus x%x\n", rc,
15866 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040015867 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040015868 }
James Smart6a9c52c2009-10-02 15:16:51 -040015869 if (rc != MBX_TIMEOUT)
James Smart76a95d72010-11-20 23:11:48 -050015870 mempool_free(mboxq, vport->phba->mbox_mem_pool);
James Smart6a9c52c2009-10-02 15:16:51 -040015871
15872 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040015873}
15874
15875/**
15876 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15877 * @phba: pointer to lpfc hba data structure.
15878 * @mboxq: Pointer to mailbox object.
15879 *
15880 * This routine is invoked to manually add a single FCF record. The caller
15881 * must pass a completely initialized FCF_Record. This routine takes
15882 * care of the nonembedded mailbox operations.
15883 **/
15884static void
15885lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
15886{
15887 void *virt_addr;
15888 union lpfc_sli4_cfg_shdr *shdr;
15889 uint32_t shdr_status, shdr_add_status;
15890
15891 virt_addr = mboxq->sge_array->addr[0];
15892 /* The IOCTL status is embedded in the mailbox subheader. */
15893 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
15894 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15895 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15896
15897 if ((shdr_status || shdr_add_status) &&
15898 (shdr_status != STATUS_FCF_IN_USE))
15899 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15900 "2558 ADD_FCF_RECORD mailbox failed with "
15901 "status x%x add_status x%x\n",
15902 shdr_status, shdr_add_status);
15903
15904 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15905}
15906
15907/**
15908 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15909 * @phba: pointer to lpfc hba data structure.
15910 * @fcf_record: pointer to the initialized fcf record to add.
15911 *
15912 * This routine is invoked to manually add a single FCF record. The caller
15913 * must pass a completely initialized FCF_Record. This routine takes
15914 * care of the nonembedded mailbox operations.
15915 **/
15916int
15917lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
15918{
15919 int rc = 0;
15920 LPFC_MBOXQ_t *mboxq;
15921 uint8_t *bytep;
15922 void *virt_addr;
15923 dma_addr_t phys_addr;
15924 struct lpfc_mbx_sge sge;
15925 uint32_t alloc_len, req_len;
15926 uint32_t fcfindex;
15927
15928 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15929 if (!mboxq) {
15930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15931 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15932 return -ENOMEM;
15933 }
15934
15935 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
15936 sizeof(uint32_t);
15937
15938 /* Allocate DMA memory and set up the non-embedded mailbox command */
15939 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
15940 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
15941 req_len, LPFC_SLI4_MBX_NEMBED);
15942 if (alloc_len < req_len) {
15943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15944 "2523 Allocated DMA memory size (x%x) is "
15945 "less than the requested DMA memory "
15946 "size (x%x)\n", alloc_len, req_len);
15947 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15948 return -ENOMEM;
15949 }
15950
15951 /*
15952 * Get the first SGE entry from the non-embedded DMA memory. This
15953 * routine only uses a single SGE.
15954 */
15955 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
15956 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040015957 virt_addr = mboxq->sge_array->addr[0];
15958 /*
15959 * Configure the FCF record for FCFI 0. This is the driver's
15960 * hardcoded default and gets used in nonFIP mode.
15961 */
15962 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
15963 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
15964 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
15965
15966 /*
15967 * Copy the fcf_index and the FCF Record Data. The data starts after
15968 * the FCoE header plus word10. The data copy needs to be endian
15969 * correct.
15970 */
15971 bytep += sizeof(uint32_t);
15972 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
15973 mboxq->vport = phba->pport;
15974 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
15975 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15976 if (rc == MBX_NOT_FINISHED) {
15977 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15978 "2515 ADD_FCF_RECORD mailbox failed with "
15979 "status 0x%x\n", rc);
15980 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15981 rc = -EIO;
15982 } else
15983 rc = 0;
15984
15985 return rc;
15986}
15987
15988/**
15989 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15990 * @phba: pointer to lpfc hba data structure.
15991 * @fcf_record: pointer to the fcf record to write the default data.
15992 * @fcf_index: FCF table entry index.
15993 *
15994 * This routine is invoked to build the driver's default FCF record. The
15995 * values used are hardcoded. This routine handles memory initialization.
15996 *
15997 **/
15998void
15999lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
16000 struct fcf_record *fcf_record,
16001 uint16_t fcf_index)
16002{
16003 memset(fcf_record, 0, sizeof(struct fcf_record));
16004 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
16005 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
16006 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
16007 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
16008 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
16009 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
16010 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
16011 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
16012 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
16013 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
16014 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
16015 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
16016 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040016017 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040016018 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
16019 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
16020 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
16021 /* Set the VLAN bit map */
16022 if (phba->valid_vlan) {
16023 fcf_record->vlan_bitmap[phba->vlan_id / 8]
16024 = 1 << (phba->vlan_id % 8);
16025 }
16026}
16027
16028/**
James Smart0c9ab6f2010-02-26 14:15:57 -050016029 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
James Smart6fb120a2009-05-22 14:52:59 -040016030 * @phba: pointer to lpfc hba data structure.
16031 * @fcf_index: FCF table entry offset.
16032 *
James Smart0c9ab6f2010-02-26 14:15:57 -050016033 * This routine is invoked to scan the entire FCF table by reading FCF
16034 * record and processing it one at a time starting from the @fcf_index
16035 * for initial FCF discovery or fast FCF failover rediscovery.
16036 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030016037 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050016038 * otherwise.
James Smart6fb120a2009-05-22 14:52:59 -040016039 **/
16040int
James Smart0c9ab6f2010-02-26 14:15:57 -050016041lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
James Smart6fb120a2009-05-22 14:52:59 -040016042{
16043 int rc = 0, error;
16044 LPFC_MBOXQ_t *mboxq;
James Smart6fb120a2009-05-22 14:52:59 -040016045
James Smart32b97932009-07-19 10:01:21 -040016046 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart80c17842012-03-01 22:35:45 -050016047 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040016048 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16049 if (!mboxq) {
16050 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16051 "2000 Failed to allocate mbox for "
16052 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040016053 error = -ENOMEM;
James Smart0c9ab6f2010-02-26 14:15:57 -050016054 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040016055 }
James Smartecfd03c2010-02-12 14:41:27 -050016056 /* Construct the read FCF record mailbox command */
James Smart0c9ab6f2010-02-26 14:15:57 -050016057 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
James Smartecfd03c2010-02-12 14:41:27 -050016058 if (rc) {
16059 error = -EINVAL;
James Smart0c9ab6f2010-02-26 14:15:57 -050016060 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040016061 }
James Smartecfd03c2010-02-12 14:41:27 -050016062 /* Issue the mailbox command asynchronously */
James Smart6fb120a2009-05-22 14:52:59 -040016063 mboxq->vport = phba->pport;
James Smart0c9ab6f2010-02-26 14:15:57 -050016064 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
James Smarta93ff372010-10-22 11:06:08 -040016065
16066 spin_lock_irq(&phba->hbalock);
16067 phba->hba_flag |= FCF_TS_INPROG;
16068 spin_unlock_irq(&phba->hbalock);
16069
James Smart6fb120a2009-05-22 14:52:59 -040016070 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
James Smartecfd03c2010-02-12 14:41:27 -050016071 if (rc == MBX_NOT_FINISHED)
James Smart6fb120a2009-05-22 14:52:59 -040016072 error = -EIO;
James Smartecfd03c2010-02-12 14:41:27 -050016073 else {
James Smart38b92ef2010-08-04 16:11:39 -040016074 /* Reset eligible FCF count for new scan */
16075 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
James Smart999d8132010-03-15 11:24:56 -040016076 phba->fcf.eligible_fcf_cnt = 0;
James Smart6fb120a2009-05-22 14:52:59 -040016077 error = 0;
James Smart32b97932009-07-19 10:01:21 -040016078 }
James Smart0c9ab6f2010-02-26 14:15:57 -050016079fail_fcf_scan:
James Smart4d9ab992009-10-02 15:16:39 -040016080 if (error) {
16081 if (mboxq)
16082 lpfc_sli4_mbox_cmd_free(phba, mboxq);
James Smarta93ff372010-10-22 11:06:08 -040016083 /* FCF scan failed, clear FCF_TS_INPROG flag */
James Smart4d9ab992009-10-02 15:16:39 -040016084 spin_lock_irq(&phba->hbalock);
James Smarta93ff372010-10-22 11:06:08 -040016085 phba->hba_flag &= ~FCF_TS_INPROG;
James Smart4d9ab992009-10-02 15:16:39 -040016086 spin_unlock_irq(&phba->hbalock);
16087 }
James Smart6fb120a2009-05-22 14:52:59 -040016088 return error;
16089}
James Smarta0c87cb2009-07-19 10:01:10 -040016090
16091/**
James Smarta93ff372010-10-22 11:06:08 -040016092 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
James Smart0c9ab6f2010-02-26 14:15:57 -050016093 * @phba: pointer to lpfc hba data structure.
16094 * @fcf_index: FCF table entry offset.
16095 *
16096 * This routine is invoked to read an FCF record indicated by @fcf_index
James Smarta93ff372010-10-22 11:06:08 -040016097 * and to use it for FLOGI roundrobin FCF failover.
James Smart0c9ab6f2010-02-26 14:15:57 -050016098 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030016099 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050016100 * otherwise.
16101 **/
16102int
16103lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16104{
16105 int rc = 0, error;
16106 LPFC_MBOXQ_t *mboxq;
16107
16108 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16109 if (!mboxq) {
16110 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16111 "2763 Failed to allocate mbox for "
16112 "READ_FCF cmd\n");
16113 error = -ENOMEM;
16114 goto fail_fcf_read;
16115 }
16116 /* Construct the read FCF record mailbox command */
16117 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16118 if (rc) {
16119 error = -EINVAL;
16120 goto fail_fcf_read;
16121 }
16122 /* Issue the mailbox command asynchronously */
16123 mboxq->vport = phba->pport;
16124 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
16125 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16126 if (rc == MBX_NOT_FINISHED)
16127 error = -EIO;
16128 else
16129 error = 0;
16130
16131fail_fcf_read:
16132 if (error && mboxq)
16133 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16134 return error;
16135}
16136
16137/**
16138 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16139 * @phba: pointer to lpfc hba data structure.
16140 * @fcf_index: FCF table entry offset.
16141 *
16142 * This routine is invoked to read an FCF record indicated by @fcf_index to
James Smarta93ff372010-10-22 11:06:08 -040016143 * determine whether it's eligible for FLOGI roundrobin failover list.
James Smart0c9ab6f2010-02-26 14:15:57 -050016144 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030016145 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050016146 * otherwise.
16147 **/
16148int
16149lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
16150{
16151 int rc = 0, error;
16152 LPFC_MBOXQ_t *mboxq;
16153
16154 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16155 if (!mboxq) {
16156 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
16157 "2758 Failed to allocate mbox for "
16158 "READ_FCF cmd\n");
16159 error = -ENOMEM;
16160 goto fail_fcf_read;
16161 }
16162 /* Construct the read FCF record mailbox command */
16163 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
16164 if (rc) {
16165 error = -EINVAL;
16166 goto fail_fcf_read;
16167 }
16168 /* Issue the mailbox command asynchronously */
16169 mboxq->vport = phba->pport;
16170 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
16171 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
16172 if (rc == MBX_NOT_FINISHED)
16173 error = -EIO;
16174 else
16175 error = 0;
16176
16177fail_fcf_read:
16178 if (error && mboxq)
16179 lpfc_sli4_mbox_cmd_free(phba, mboxq);
16180 return error;
16181}
16182
16183/**
James Smart7d791df2011-07-22 18:37:52 -040016184 * lpfc_check_next_fcf_pri
16185 * phba pointer to the lpfc_hba struct for this port.
16186 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16187 * routine when the rr_bmask is empty. The FCF indecies are put into the
16188 * rr_bmask based on their priority level. Starting from the highest priority
16189 * to the lowest. The most likely FCF candidate will be in the highest
16190 * priority group. When this routine is called it searches the fcf_pri list for
16191 * next lowest priority group and repopulates the rr_bmask with only those
16192 * fcf_indexes.
16193 * returns:
16194 * 1=success 0=failure
16195 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040016196static int
James Smart7d791df2011-07-22 18:37:52 -040016197lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
16198{
16199 uint16_t next_fcf_pri;
16200 uint16_t last_index;
16201 struct lpfc_fcf_pri *fcf_pri;
16202 int rc;
16203 int ret = 0;
16204
16205 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
16206 LPFC_SLI4_FCF_TBL_INDX_MAX);
16207 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
16208 "3060 Last IDX %d\n", last_index);
James Smart25626692013-03-01 16:36:54 -050016209
16210 /* Verify the priority list has 2 or more entries */
16211 spin_lock_irq(&phba->hbalock);
16212 if (list_empty(&phba->fcf.fcf_pri_list) ||
16213 list_is_singular(&phba->fcf.fcf_pri_list)) {
16214 spin_unlock_irq(&phba->hbalock);
James Smart7d791df2011-07-22 18:37:52 -040016215 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
16216 "3061 Last IDX %d\n", last_index);
16217 return 0; /* Empty rr list */
16218 }
James Smart25626692013-03-01 16:36:54 -050016219 spin_unlock_irq(&phba->hbalock);
16220
James Smart7d791df2011-07-22 18:37:52 -040016221 next_fcf_pri = 0;
16222 /*
16223 * Clear the rr_bmask and set all of the bits that are at this
16224 * priority.
16225 */
16226 memset(phba->fcf.fcf_rr_bmask, 0,
16227 sizeof(*phba->fcf.fcf_rr_bmask));
16228 spin_lock_irq(&phba->hbalock);
16229 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16230 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
16231 continue;
16232 /*
16233 * the 1st priority that has not FLOGI failed
16234 * will be the highest.
16235 */
16236 if (!next_fcf_pri)
16237 next_fcf_pri = fcf_pri->fcf_rec.priority;
16238 spin_unlock_irq(&phba->hbalock);
16239 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16240 rc = lpfc_sli4_fcf_rr_index_set(phba,
16241 fcf_pri->fcf_rec.fcf_index);
16242 if (rc)
16243 return 0;
16244 }
16245 spin_lock_irq(&phba->hbalock);
16246 }
16247 /*
16248 * if next_fcf_pri was not set above and the list is not empty then
16249 * we have failed flogis on all of them. So reset flogi failed
Anatol Pomozov4907cb72012-09-01 10:31:09 -070016250 * and start at the beginning.
James Smart7d791df2011-07-22 18:37:52 -040016251 */
16252 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
16253 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
16254 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
16255 /*
16256 * the 1st priority that has not FLOGI failed
16257 * will be the highest.
16258 */
16259 if (!next_fcf_pri)
16260 next_fcf_pri = fcf_pri->fcf_rec.priority;
16261 spin_unlock_irq(&phba->hbalock);
16262 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
16263 rc = lpfc_sli4_fcf_rr_index_set(phba,
16264 fcf_pri->fcf_rec.fcf_index);
16265 if (rc)
16266 return 0;
16267 }
16268 spin_lock_irq(&phba->hbalock);
16269 }
16270 } else
16271 ret = 1;
16272 spin_unlock_irq(&phba->hbalock);
16273
16274 return ret;
16275}
16276/**
James Smart0c9ab6f2010-02-26 14:15:57 -050016277 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16278 * @phba: pointer to lpfc hba data structure.
16279 *
16280 * This routine is to get the next eligible FCF record index in a round
16281 * robin fashion. If the next eligible FCF record index equals to the
James Smarta93ff372010-10-22 11:06:08 -040016282 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
James Smart0c9ab6f2010-02-26 14:15:57 -050016283 * shall be returned, otherwise, the next eligible FCF record's index
16284 * shall be returned.
16285 **/
16286uint16_t
16287lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
16288{
16289 uint16_t next_fcf_index;
16290
James Smart421c6622013-01-03 15:44:16 -050016291initial_priority:
James Smart3804dc82010-07-14 15:31:37 -040016292 /* Search start from next bit of currently registered FCF index */
James Smart421c6622013-01-03 15:44:16 -050016293 next_fcf_index = phba->fcf.current_rec.fcf_indx;
16294
James Smart7d791df2011-07-22 18:37:52 -040016295next_priority:
James Smart421c6622013-01-03 15:44:16 -050016296 /* Determine the next fcf index to check */
16297 next_fcf_index = (next_fcf_index + 1) % LPFC_SLI4_FCF_TBL_INDX_MAX;
James Smart0c9ab6f2010-02-26 14:15:57 -050016298 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16299 LPFC_SLI4_FCF_TBL_INDX_MAX,
James Smart3804dc82010-07-14 15:31:37 -040016300 next_fcf_index);
16301
James Smart0c9ab6f2010-02-26 14:15:57 -050016302 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
James Smart7d791df2011-07-22 18:37:52 -040016303 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16304 /*
16305 * If we have wrapped then we need to clear the bits that
16306 * have been tested so that we can detect when we should
16307 * change the priority level.
16308 */
James Smart0c9ab6f2010-02-26 14:15:57 -050016309 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
16310 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
James Smart7d791df2011-07-22 18:37:52 -040016311 }
16312
James Smart0c9ab6f2010-02-26 14:15:57 -050016313
James Smart3804dc82010-07-14 15:31:37 -040016314 /* Check roundrobin failover list empty condition */
James Smart7d791df2011-07-22 18:37:52 -040016315 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
16316 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
16317 /*
16318 * If next fcf index is not found check if there are lower
16319 * Priority level fcf's in the fcf_priority list.
16320 * Set up the rr_bmask with all of the avaiable fcf bits
16321 * at that level and continue the selection process.
16322 */
16323 if (lpfc_check_next_fcf_pri_level(phba))
James Smart421c6622013-01-03 15:44:16 -050016324 goto initial_priority;
James Smart3804dc82010-07-14 15:31:37 -040016325 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16326 "2844 No roundrobin failover FCF available\n");
James Smart7d791df2011-07-22 18:37:52 -040016327 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
16328 return LPFC_FCOE_FCF_NEXT_NONE;
16329 else {
16330 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
16331 "3063 Only FCF available idx %d, flag %x\n",
16332 next_fcf_index,
16333 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
16334 return next_fcf_index;
16335 }
James Smart3804dc82010-07-14 15:31:37 -040016336 }
16337
James Smart7d791df2011-07-22 18:37:52 -040016338 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
16339 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
16340 LPFC_FCF_FLOGI_FAILED)
16341 goto next_priority;
16342
James Smart3804dc82010-07-14 15:31:37 -040016343 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016344 "2845 Get next roundrobin failover FCF (x%x)\n",
16345 next_fcf_index);
16346
James Smart0c9ab6f2010-02-26 14:15:57 -050016347 return next_fcf_index;
16348}
16349
16350/**
16351 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16352 * @phba: pointer to lpfc hba data structure.
16353 *
16354 * This routine sets the FCF record index in to the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040016355 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050016356 * does not go beyond the range of the driver allocated bmask dimension
16357 * before setting the bit.
16358 *
16359 * Returns 0 if the index bit successfully set, otherwise, it returns
16360 * -EINVAL.
16361 **/
16362int
16363lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
16364{
16365 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16366 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016367 "2610 FCF (x%x) reached driver's book "
16368 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050016369 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16370 return -EINVAL;
16371 }
16372 /* Set the eligible FCF record index bmask */
16373 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
16374
James Smart3804dc82010-07-14 15:31:37 -040016375 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016376 "2790 Set FCF (x%x) to roundrobin FCF failover "
James Smart3804dc82010-07-14 15:31:37 -040016377 "bmask\n", fcf_index);
16378
James Smart0c9ab6f2010-02-26 14:15:57 -050016379 return 0;
16380}
16381
16382/**
James Smart3804dc82010-07-14 15:31:37 -040016383 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
James Smart0c9ab6f2010-02-26 14:15:57 -050016384 * @phba: pointer to lpfc hba data structure.
16385 *
16386 * This routine clears the FCF record index from the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040016387 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050016388 * does not go beyond the range of the driver allocated bmask dimension
16389 * before clearing the bit.
16390 **/
16391void
16392lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
16393{
James Smart9a803a72013-09-06 12:17:56 -040016394 struct lpfc_fcf_pri *fcf_pri, *fcf_pri_next;
James Smart0c9ab6f2010-02-26 14:15:57 -050016395 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
16396 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016397 "2762 FCF (x%x) reached driver's book "
16398 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050016399 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
16400 return;
16401 }
16402 /* Clear the eligible FCF record index bmask */
James Smart7d791df2011-07-22 18:37:52 -040016403 spin_lock_irq(&phba->hbalock);
James Smart9a803a72013-09-06 12:17:56 -040016404 list_for_each_entry_safe(fcf_pri, fcf_pri_next, &phba->fcf.fcf_pri_list,
16405 list) {
James Smart7d791df2011-07-22 18:37:52 -040016406 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
16407 list_del_init(&fcf_pri->list);
16408 break;
16409 }
16410 }
16411 spin_unlock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050016412 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
James Smart3804dc82010-07-14 15:31:37 -040016413
16414 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016415 "2791 Clear FCF (x%x) from roundrobin failover "
James Smart3804dc82010-07-14 15:31:37 -040016416 "bmask\n", fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050016417}
16418
16419/**
James Smartecfd03c2010-02-12 14:41:27 -050016420 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16421 * @phba: pointer to lpfc hba data structure.
16422 *
16423 * This routine is the completion routine for the rediscover FCF table mailbox
16424 * command. If the mailbox command returned failure, it will try to stop the
16425 * FCF rediscover wait timer.
16426 **/
Rashika Kheria5d8b8162014-09-03 12:55:04 -040016427static void
James Smartecfd03c2010-02-12 14:41:27 -050016428lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
16429{
16430 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16431 uint32_t shdr_status, shdr_add_status;
16432
16433 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16434
16435 shdr_status = bf_get(lpfc_mbox_hdr_status,
16436 &redisc_fcf->header.cfg_shdr.response);
16437 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
16438 &redisc_fcf->header.cfg_shdr.response);
16439 if (shdr_status || shdr_add_status) {
James Smart0c9ab6f2010-02-26 14:15:57 -050016440 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smartecfd03c2010-02-12 14:41:27 -050016441 "2746 Requesting for FCF rediscovery failed "
16442 "status x%x add_status x%x\n",
16443 shdr_status, shdr_add_status);
James Smart0c9ab6f2010-02-26 14:15:57 -050016444 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
James Smartfc2b9892010-02-26 14:15:29 -050016445 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050016446 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050016447 spin_unlock_irq(&phba->hbalock);
16448 /*
16449 * CVL event triggered FCF rediscover request failed,
16450 * last resort to re-try current registered FCF entry.
16451 */
16452 lpfc_retry_pport_discovery(phba);
16453 } else {
16454 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050016455 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050016456 spin_unlock_irq(&phba->hbalock);
16457 /*
16458 * DEAD FCF event triggered FCF rediscover request
16459 * failed, last resort to fail over as a link down
16460 * to FCF registration.
16461 */
16462 lpfc_sli4_fcf_dead_failthrough(phba);
16463 }
James Smart0c9ab6f2010-02-26 14:15:57 -050016464 } else {
16465 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040016466 "2775 Start FCF rediscover quiescent timer\n");
James Smartecfd03c2010-02-12 14:41:27 -050016467 /*
16468 * Start FCF rediscovery wait timer for pending FCF
16469 * before rescan FCF record table.
16470 */
16471 lpfc_fcf_redisc_wait_start_timer(phba);
James Smart0c9ab6f2010-02-26 14:15:57 -050016472 }
James Smartecfd03c2010-02-12 14:41:27 -050016473
16474 mempool_free(mbox, phba->mbox_mem_pool);
16475}
16476
16477/**
James Smart3804dc82010-07-14 15:31:37 -040016478 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
James Smartecfd03c2010-02-12 14:41:27 -050016479 * @phba: pointer to lpfc hba data structure.
16480 *
16481 * This routine is invoked to request for rediscovery of the entire FCF table
16482 * by the port.
16483 **/
16484int
16485lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
16486{
16487 LPFC_MBOXQ_t *mbox;
16488 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
16489 int rc, length;
16490
James Smart0c9ab6f2010-02-26 14:15:57 -050016491 /* Cancel retry delay timers to all vports before FCF rediscover */
16492 lpfc_cancel_all_vport_retry_delay_timer(phba);
16493
James Smartecfd03c2010-02-12 14:41:27 -050016494 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16495 if (!mbox) {
16496 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16497 "2745 Failed to allocate mbox for "
16498 "requesting FCF rediscover.\n");
16499 return -ENOMEM;
16500 }
16501
16502 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
16503 sizeof(struct lpfc_sli4_cfg_mhdr));
16504 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
16505 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
16506 length, LPFC_SLI4_MBX_EMBED);
16507
16508 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
16509 /* Set count to 0 for invalidating the entire FCF database */
16510 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
16511
16512 /* Issue the mailbox command asynchronously */
16513 mbox->vport = phba->pport;
16514 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
16515 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
16516
16517 if (rc == MBX_NOT_FINISHED) {
16518 mempool_free(mbox, phba->mbox_mem_pool);
16519 return -EIO;
16520 }
16521 return 0;
16522}
16523
16524/**
James Smartfc2b9892010-02-26 14:15:29 -050016525 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16526 * @phba: pointer to lpfc hba data structure.
16527 *
16528 * This function is the failover routine as a last resort to the FCF DEAD
16529 * event when driver failed to perform fast FCF failover.
16530 **/
16531void
16532lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
16533{
16534 uint32_t link_state;
16535
16536 /*
16537 * Last resort as FCF DEAD event failover will treat this as
16538 * a link down, but save the link state because we don't want
16539 * it to be changed to Link Down unless it is already down.
16540 */
16541 link_state = phba->link_state;
16542 lpfc_linkdown(phba);
16543 phba->link_state = link_state;
16544
16545 /* Unregister FCF if no devices connected to it */
16546 lpfc_unregister_unused_fcf(phba);
16547}
16548
16549/**
James Smart026abb82011-12-13 13:20:45 -050016550 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040016551 * @phba: pointer to lpfc hba data structure.
James Smart026abb82011-12-13 13:20:45 -050016552 * @rgn23_data: pointer to configure region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040016553 *
James Smart026abb82011-12-13 13:20:45 -050016554 * This function gets SLI3 port configure region 23 data through memory dump
16555 * mailbox command. When it successfully retrieves data, the size of the data
16556 * will be returned, otherwise, 0 will be returned.
James Smarta0c87cb2009-07-19 10:01:10 -040016557 **/
James Smart026abb82011-12-13 13:20:45 -050016558static uint32_t
16559lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
James Smarta0c87cb2009-07-19 10:01:10 -040016560{
16561 LPFC_MBOXQ_t *pmb = NULL;
16562 MAILBOX_t *mb;
James Smart026abb82011-12-13 13:20:45 -050016563 uint32_t offset = 0;
James Smarta0c87cb2009-07-19 10:01:10 -040016564 int rc;
16565
James Smart026abb82011-12-13 13:20:45 -050016566 if (!rgn23_data)
16567 return 0;
16568
James Smarta0c87cb2009-07-19 10:01:10 -040016569 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16570 if (!pmb) {
16571 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050016572 "2600 failed to allocate mailbox memory\n");
16573 return 0;
James Smarta0c87cb2009-07-19 10:01:10 -040016574 }
16575 mb = &pmb->u.mb;
16576
James Smarta0c87cb2009-07-19 10:01:10 -040016577 do {
16578 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
16579 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
16580
16581 if (rc != MBX_SUCCESS) {
16582 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050016583 "2601 failed to read config "
16584 "region 23, rc 0x%x Status 0x%x\n",
16585 rc, mb->mbxStatus);
James Smarta0c87cb2009-07-19 10:01:10 -040016586 mb->un.varDmp.word_cnt = 0;
16587 }
16588 /*
16589 * dump mem may return a zero when finished or we got a
16590 * mailbox error, either way we are done.
16591 */
16592 if (mb->un.varDmp.word_cnt == 0)
16593 break;
16594 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
16595 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
16596
16597 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
James Smart026abb82011-12-13 13:20:45 -050016598 rgn23_data + offset,
16599 mb->un.varDmp.word_cnt);
James Smarta0c87cb2009-07-19 10:01:10 -040016600 offset += mb->un.varDmp.word_cnt;
16601 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
16602
James Smart026abb82011-12-13 13:20:45 -050016603 mempool_free(pmb, phba->mbox_mem_pool);
16604 return offset;
16605}
16606
16607/**
16608 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16609 * @phba: pointer to lpfc hba data structure.
16610 * @rgn23_data: pointer to configure region 23 data.
16611 *
16612 * This function gets SLI4 port configure region 23 data through memory dump
16613 * mailbox command. When it successfully retrieves data, the size of the data
16614 * will be returned, otherwise, 0 will be returned.
16615 **/
16616static uint32_t
16617lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
16618{
16619 LPFC_MBOXQ_t *mboxq = NULL;
16620 struct lpfc_dmabuf *mp = NULL;
16621 struct lpfc_mqe *mqe;
16622 uint32_t data_length = 0;
16623 int rc;
16624
16625 if (!rgn23_data)
16626 return 0;
16627
16628 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16629 if (!mboxq) {
16630 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16631 "3105 failed to allocate mailbox memory\n");
16632 return 0;
16633 }
16634
16635 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
16636 goto out;
16637 mqe = &mboxq->u.mqe;
16638 mp = (struct lpfc_dmabuf *) mboxq->context1;
16639 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
16640 if (rc)
16641 goto out;
16642 data_length = mqe->un.mb_words[5];
16643 if (data_length == 0)
16644 goto out;
16645 if (data_length > DMP_RGN23_SIZE) {
16646 data_length = 0;
16647 goto out;
16648 }
16649 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
16650out:
16651 mempool_free(mboxq, phba->mbox_mem_pool);
16652 if (mp) {
16653 lpfc_mbuf_free(phba, mp->virt, mp->phys);
16654 kfree(mp);
16655 }
16656 return data_length;
16657}
16658
16659/**
16660 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16661 * @phba: pointer to lpfc hba data structure.
16662 *
16663 * This function read region 23 and parse TLV for port status to
16664 * decide if the user disaled the port. If the TLV indicates the
16665 * port is disabled, the hba_flag is set accordingly.
16666 **/
16667void
16668lpfc_sli_read_link_ste(struct lpfc_hba *phba)
16669{
16670 uint8_t *rgn23_data = NULL;
16671 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
16672 uint32_t offset = 0;
16673
16674 /* Get adapter Region 23 data */
16675 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
16676 if (!rgn23_data)
16677 goto out;
16678
16679 if (phba->sli_rev < LPFC_SLI_REV4)
16680 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
16681 else {
16682 if_type = bf_get(lpfc_sli_intf_if_type,
16683 &phba->sli4_hba.sli_intf);
16684 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
16685 goto out;
16686 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
16687 }
James Smarta0c87cb2009-07-19 10:01:10 -040016688
16689 if (!data_size)
16690 goto out;
16691
16692 /* Check the region signature first */
16693 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
16694 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16695 "2619 Config region 23 has bad signature\n");
16696 goto out;
16697 }
16698 offset += 4;
16699
16700 /* Check the data structure version */
16701 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
16702 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16703 "2620 Config region 23 has bad version\n");
16704 goto out;
16705 }
16706 offset += 4;
16707
16708 /* Parse TLV entries in the region */
16709 while (offset < data_size) {
16710 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
16711 break;
16712 /*
16713 * If the TLV is not driver specific TLV or driver id is
16714 * not linux driver id, skip the record.
16715 */
16716 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
16717 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
16718 (rgn23_data[offset + 3] != 0)) {
16719 offset += rgn23_data[offset + 1] * 4 + 4;
16720 continue;
16721 }
16722
16723 /* Driver found a driver specific TLV in the config region */
16724 sub_tlv_len = rgn23_data[offset + 1] * 4;
16725 offset += 4;
16726 tlv_offset = 0;
16727
16728 /*
16729 * Search for configured port state sub-TLV.
16730 */
16731 while ((offset < data_size) &&
16732 (tlv_offset < sub_tlv_len)) {
16733 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
16734 offset += 4;
16735 tlv_offset += 4;
16736 break;
16737 }
16738 if (rgn23_data[offset] != PORT_STE_TYPE) {
16739 offset += rgn23_data[offset + 1] * 4 + 4;
16740 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
16741 continue;
16742 }
16743
16744 /* This HBA contains PORT_STE configured */
16745 if (!rgn23_data[offset + 2])
16746 phba->hba_flag |= LINK_DISABLED;
16747
16748 goto out;
16749 }
16750 }
James Smart026abb82011-12-13 13:20:45 -050016751
James Smarta0c87cb2009-07-19 10:01:10 -040016752out:
James Smarta0c87cb2009-07-19 10:01:10 -040016753 kfree(rgn23_data);
16754 return;
16755}
James Smart695a8142010-01-26 23:08:03 -050016756
16757/**
James Smart52d52442011-05-24 11:42:45 -040016758 * lpfc_wr_object - write an object to the firmware
16759 * @phba: HBA structure that indicates port to create a queue on.
16760 * @dmabuf_list: list of dmabufs to write to the port.
16761 * @size: the total byte value of the objects to write to the port.
16762 * @offset: the current offset to be used to start the transfer.
16763 *
16764 * This routine will create a wr_object mailbox command to send to the port.
16765 * the mailbox command will be constructed using the dma buffers described in
16766 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16767 * BDEs that the imbedded mailbox can support. The @offset variable will be
16768 * used to indicate the starting offset of the transfer and will also return
16769 * the offset after the write object mailbox has completed. @size is used to
16770 * determine the end of the object and whether the eof bit should be set.
16771 *
16772 * Return 0 is successful and offset will contain the the new offset to use
16773 * for the next write.
16774 * Return negative value for error cases.
16775 **/
16776int
16777lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
16778 uint32_t size, uint32_t *offset)
16779{
16780 struct lpfc_mbx_wr_object *wr_object;
16781 LPFC_MBOXQ_t *mbox;
16782 int rc = 0, i = 0;
16783 uint32_t shdr_status, shdr_add_status;
16784 uint32_t mbox_tmo;
16785 union lpfc_sli4_cfg_shdr *shdr;
16786 struct lpfc_dmabuf *dmabuf;
16787 uint32_t written = 0;
16788
16789 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
16790 if (!mbox)
16791 return -ENOMEM;
16792
16793 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
16794 LPFC_MBOX_OPCODE_WRITE_OBJECT,
16795 sizeof(struct lpfc_mbx_wr_object) -
16796 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
16797
16798 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
16799 wr_object->u.request.write_offset = *offset;
16800 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
16801 wr_object->u.request.object_name[0] =
16802 cpu_to_le32(wr_object->u.request.object_name[0]);
16803 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
16804 list_for_each_entry(dmabuf, dmabuf_list, list) {
16805 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
16806 break;
16807 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
16808 wr_object->u.request.bde[i].addrHigh =
16809 putPaddrHigh(dmabuf->phys);
16810 if (written + SLI4_PAGE_SIZE >= size) {
16811 wr_object->u.request.bde[i].tus.f.bdeSize =
16812 (size - written);
16813 written += (size - written);
16814 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
16815 } else {
16816 wr_object->u.request.bde[i].tus.f.bdeSize =
16817 SLI4_PAGE_SIZE;
16818 written += SLI4_PAGE_SIZE;
16819 }
16820 i++;
16821 }
16822 wr_object->u.request.bde_count = i;
16823 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
16824 if (!phba->sli4_hba.intr_enable)
16825 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
16826 else {
James Smarta183a152011-10-10 21:32:43 -040016827 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart52d52442011-05-24 11:42:45 -040016828 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
16829 }
16830 /* The IOCTL status is embedded in the mailbox subheader. */
16831 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
16832 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
16833 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
16834 if (rc != MBX_TIMEOUT)
16835 mempool_free(mbox, phba->mbox_mem_pool);
16836 if (shdr_status || shdr_add_status || rc) {
16837 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
16838 "3025 Write Object mailbox failed with "
16839 "status x%x add_status x%x, mbx status x%x\n",
16840 shdr_status, shdr_add_status, rc);
16841 rc = -ENXIO;
16842 } else
16843 *offset += wr_object->u.response.actual_write_length;
16844 return rc;
16845}
16846
16847/**
James Smart695a8142010-01-26 23:08:03 -050016848 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16849 * @vport: pointer to vport data structure.
16850 *
16851 * This function iterate through the mailboxq and clean up all REG_LOGIN
16852 * and REG_VPI mailbox commands associated with the vport. This function
16853 * is called when driver want to restart discovery of the vport due to
16854 * a Clear Virtual Link event.
16855 **/
16856void
16857lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
16858{
16859 struct lpfc_hba *phba = vport->phba;
16860 LPFC_MBOXQ_t *mb, *nextmb;
16861 struct lpfc_dmabuf *mp;
James Smart78730cf2010-04-06 15:06:30 -040016862 struct lpfc_nodelist *ndlp;
James Smartd439d282010-09-29 11:18:45 -040016863 struct lpfc_nodelist *act_mbx_ndlp = NULL;
James Smart589a52d2010-07-14 15:30:54 -040016864 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
James Smartd439d282010-09-29 11:18:45 -040016865 LIST_HEAD(mbox_cmd_list);
James Smart63e801c2010-11-20 23:14:19 -050016866 uint8_t restart_loop;
James Smart695a8142010-01-26 23:08:03 -050016867
James Smartd439d282010-09-29 11:18:45 -040016868 /* Clean up internally queued mailbox commands with the vport */
James Smart695a8142010-01-26 23:08:03 -050016869 spin_lock_irq(&phba->hbalock);
16870 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
16871 if (mb->vport != vport)
16872 continue;
16873
16874 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16875 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16876 continue;
16877
James Smartd439d282010-09-29 11:18:45 -040016878 list_del(&mb->list);
16879 list_add_tail(&mb->list, &mbox_cmd_list);
16880 }
16881 /* Clean up active mailbox command with the vport */
16882 mb = phba->sli.mbox_active;
16883 if (mb && (mb->vport == vport)) {
16884 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
16885 (mb->u.mb.mbxCommand == MBX_REG_VPI))
16886 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16887 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16888 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
16889 /* Put reference count for delayed processing */
16890 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
16891 /* Unregister the RPI when mailbox complete */
16892 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16893 }
16894 }
James Smart63e801c2010-11-20 23:14:19 -050016895 /* Cleanup any mailbox completions which are not yet processed */
16896 do {
16897 restart_loop = 0;
16898 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
16899 /*
16900 * If this mailox is already processed or it is
16901 * for another vport ignore it.
16902 */
16903 if ((mb->vport != vport) ||
16904 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
16905 continue;
16906
16907 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
16908 (mb->u.mb.mbxCommand != MBX_REG_VPI))
16909 continue;
16910
16911 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
16912 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16913 ndlp = (struct lpfc_nodelist *)mb->context2;
16914 /* Unregister the RPI when mailbox complete */
16915 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
16916 restart_loop = 1;
16917 spin_unlock_irq(&phba->hbalock);
16918 spin_lock(shost->host_lock);
16919 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16920 spin_unlock(shost->host_lock);
16921 spin_lock_irq(&phba->hbalock);
16922 break;
16923 }
16924 }
16925 } while (restart_loop);
16926
James Smartd439d282010-09-29 11:18:45 -040016927 spin_unlock_irq(&phba->hbalock);
16928
16929 /* Release the cleaned-up mailbox commands */
16930 while (!list_empty(&mbox_cmd_list)) {
16931 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
James Smart695a8142010-01-26 23:08:03 -050016932 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
16933 mp = (struct lpfc_dmabuf *) (mb->context1);
16934 if (mp) {
16935 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
16936 kfree(mp);
16937 }
James Smart78730cf2010-04-06 15:06:30 -040016938 ndlp = (struct lpfc_nodelist *) mb->context2;
James Smartd439d282010-09-29 11:18:45 -040016939 mb->context2 = NULL;
James Smart78730cf2010-04-06 15:06:30 -040016940 if (ndlp) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020016941 spin_lock(shost->host_lock);
James Smart589a52d2010-07-14 15:30:54 -040016942 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
Dan Carpenterec21b3b2010-08-08 00:15:17 +020016943 spin_unlock(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040016944 lpfc_nlp_put(ndlp);
James Smart78730cf2010-04-06 15:06:30 -040016945 }
James Smart695a8142010-01-26 23:08:03 -050016946 }
James Smart695a8142010-01-26 23:08:03 -050016947 mempool_free(mb, phba->mbox_mem_pool);
16948 }
James Smartd439d282010-09-29 11:18:45 -040016949
16950 /* Release the ndlp with the cleaned-up active mailbox command */
16951 if (act_mbx_ndlp) {
16952 spin_lock(shost->host_lock);
16953 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
16954 spin_unlock(shost->host_lock);
16955 lpfc_nlp_put(act_mbx_ndlp);
James Smart695a8142010-01-26 23:08:03 -050016956 }
James Smart695a8142010-01-26 23:08:03 -050016957}
16958
James Smart2a9bf3d2010-06-07 15:24:45 -040016959/**
16960 * lpfc_drain_txq - Drain the txq
16961 * @phba: Pointer to HBA context object.
16962 *
16963 * This function attempt to submit IOCBs on the txq
16964 * to the adapter. For SLI4 adapters, the txq contains
16965 * ELS IOCBs that have been deferred because the there
16966 * are no SGLs. This congestion can occur with large
16967 * vport counts during node discovery.
16968 **/
16969
16970uint32_t
16971lpfc_drain_txq(struct lpfc_hba *phba)
16972{
16973 LIST_HEAD(completions);
16974 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
Daeseok Youn2e706372014-02-21 09:03:32 +090016975 struct lpfc_iocbq *piocbq = NULL;
James Smart2a9bf3d2010-06-07 15:24:45 -040016976 unsigned long iflags = 0;
16977 char *fail_msg = NULL;
16978 struct lpfc_sglq *sglq;
16979 union lpfc_wqe wqe;
James Smarta2fc4aef2014-09-03 12:57:55 -040016980 uint32_t txq_cnt = 0;
James Smart2a9bf3d2010-06-07 15:24:45 -040016981
James Smart398d81c2013-05-31 17:04:19 -040016982 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart0e9bb8d2013-03-01 16:35:12 -050016983 list_for_each_entry(piocbq, &pring->txq, list) {
16984 txq_cnt++;
16985 }
16986
16987 if (txq_cnt > pring->txq_max)
16988 pring->txq_max = txq_cnt;
James Smart2a9bf3d2010-06-07 15:24:45 -040016989
James Smart398d81c2013-05-31 17:04:19 -040016990 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040016991
James Smart0e9bb8d2013-03-01 16:35:12 -050016992 while (!list_empty(&pring->txq)) {
James Smart398d81c2013-05-31 17:04:19 -040016993 spin_lock_irqsave(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040016994
James Smart19ca7602010-11-20 23:11:55 -050016995 piocbq = lpfc_sli_ringtx_get(phba, pring);
James Smarta6298522012-06-12 13:54:11 -040016996 if (!piocbq) {
James Smart398d81c2013-05-31 17:04:19 -040016997 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smarta6298522012-06-12 13:54:11 -040016998 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16999 "2823 txq empty and txq_cnt is %d\n ",
James Smart0e9bb8d2013-03-01 16:35:12 -050017000 txq_cnt);
James Smarta6298522012-06-12 13:54:11 -040017001 break;
17002 }
James Smart19ca7602010-11-20 23:11:55 -050017003 sglq = __lpfc_sli_get_sglq(phba, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040017004 if (!sglq) {
James Smart19ca7602010-11-20 23:11:55 -050017005 __lpfc_sli_ringtx_put(phba, pring, piocbq);
James Smart398d81c2013-05-31 17:04:19 -040017006 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040017007 break;
James Smart2a9bf3d2010-06-07 15:24:45 -040017008 }
James Smart0e9bb8d2013-03-01 16:35:12 -050017009 txq_cnt--;
James Smart2a9bf3d2010-06-07 15:24:45 -040017010
17011 /* The xri and iocb resources secured,
17012 * attempt to issue request
17013 */
James Smart6d368e52011-05-24 11:44:12 -040017014 piocbq->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -040017015 piocbq->sli4_xritag = sglq->sli4_xritag;
17016 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
17017 fail_msg = "to convert bpl to sgl";
17018 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
17019 fail_msg = "to convert iocb to wqe";
17020 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
17021 fail_msg = " - Wq is full";
17022 else
17023 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
17024
17025 if (fail_msg) {
17026 /* Failed means we can't issue and need to cancel */
17027 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
17028 "2822 IOCB failed %s iotag 0x%x "
17029 "xri 0x%x\n",
17030 fail_msg,
17031 piocbq->iotag, piocbq->sli4_xritag);
17032 list_add_tail(&piocbq->list, &completions);
17033 }
James Smart398d81c2013-05-31 17:04:19 -040017034 spin_unlock_irqrestore(&pring->ring_lock, iflags);
James Smart2a9bf3d2010-06-07 15:24:45 -040017035 }
17036
James Smart2a9bf3d2010-06-07 15:24:45 -040017037 /* Cancel all the IOCBs that cannot be issued */
17038 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
17039 IOERR_SLI_ABORTED);
17040
James Smart0e9bb8d2013-03-01 16:35:12 -050017041 return txq_cnt;
James Smart2a9bf3d2010-06-07 15:24:45 -040017042}