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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 Smartbdcd2b92012-03-01 22:33:52 -05004 * Copyright (C) 2004-2012 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 *);
70
James Smart4f774512009-05-22 14:52:35 -040071static IOCB_t *
72lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
73{
74 return &iocbq->iocb;
75}
76
77/**
78 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
79 * @q: The Work Queue to operate on.
80 * @wqe: The work Queue Entry to put on the Work queue.
81 *
82 * This routine will copy the contents of @wqe to the next available entry on
83 * the @q. This function will then ring the Work Queue Doorbell to signal the
84 * HBA to start processing the Work Queue Entry. This function returns 0 if
85 * successful. If no entries are available on @q then this function will return
86 * -ENOMEM.
87 * The caller is expected to hold the hbalock when calling this routine.
88 **/
89static uint32_t
90lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
91{
James Smart2e90f4b2011-12-13 13:22:37 -050092 union lpfc_wqe *temp_wqe;
James Smart4f774512009-05-22 14:52:35 -040093 struct lpfc_register doorbell;
94 uint32_t host_index;
95
James Smart2e90f4b2011-12-13 13:22:37 -050096 /* sanity check on queue memory */
97 if (unlikely(!q))
98 return -ENOMEM;
99 temp_wqe = q->qe[q->host_index].wqe;
100
James Smart4f774512009-05-22 14:52:35 -0400101 /* If the host has not yet processed the next entry then we are done */
102 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
103 return -ENOMEM;
104 /* set consumption flag every once in a while */
James Smartff78d8f2011-12-13 13:21:35 -0500105 if (!((q->host_index + 1) % q->entry_repost))
James Smartf0d9bcc2010-10-22 11:07:09 -0400106 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
James Smartfedd3b72011-02-16 12:39:24 -0500107 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
108 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400109 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
110
111 /* Update the host index before invoking device */
112 host_index = q->host_index;
113 q->host_index = ((q->host_index + 1) % q->entry_count);
114
115 /* Ring Doorbell */
116 doorbell.word0 = 0;
117 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
118 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
119 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
120 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
121 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
122
123 return 0;
124}
125
126/**
127 * lpfc_sli4_wq_release - Updates internal hba index for WQ
128 * @q: The Work Queue to operate on.
129 * @index: The index to advance the hba index to.
130 *
131 * This routine will update the HBA index of a queue to reflect consumption of
132 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
133 * an entry the host calls this function to update the queue's internal
134 * pointers. This routine returns the number of entries that were consumed by
135 * the HBA.
136 **/
137static uint32_t
138lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
139{
140 uint32_t released = 0;
141
James Smart2e90f4b2011-12-13 13:22:37 -0500142 /* sanity check on queue memory */
143 if (unlikely(!q))
144 return 0;
145
James Smart4f774512009-05-22 14:52:35 -0400146 if (q->hba_index == index)
147 return 0;
148 do {
149 q->hba_index = ((q->hba_index + 1) % q->entry_count);
150 released++;
151 } while (q->hba_index != index);
152 return released;
153}
154
155/**
156 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
157 * @q: The Mailbox Queue to operate on.
158 * @wqe: The Mailbox Queue Entry to put on the Work queue.
159 *
160 * This routine will copy the contents of @mqe to the next available entry on
161 * the @q. This function will then ring the Work Queue Doorbell to signal the
162 * HBA to start processing the Work Queue Entry. This function returns 0 if
163 * successful. If no entries are available on @q then this function will return
164 * -ENOMEM.
165 * The caller is expected to hold the hbalock when calling this routine.
166 **/
167static uint32_t
168lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
169{
James Smart2e90f4b2011-12-13 13:22:37 -0500170 struct lpfc_mqe *temp_mqe;
James Smart4f774512009-05-22 14:52:35 -0400171 struct lpfc_register doorbell;
172 uint32_t host_index;
173
James Smart2e90f4b2011-12-13 13:22:37 -0500174 /* sanity check on queue memory */
175 if (unlikely(!q))
176 return -ENOMEM;
177 temp_mqe = q->qe[q->host_index].mqe;
178
James Smart4f774512009-05-22 14:52:35 -0400179 /* If the host has not yet processed the next entry then we are done */
180 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
181 return -ENOMEM;
182 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
183 /* Save off the mailbox pointer for completion */
184 q->phba->mbox = (MAILBOX_t *)temp_mqe;
185
186 /* Update the host index before invoking device */
187 host_index = q->host_index;
188 q->host_index = ((q->host_index + 1) % q->entry_count);
189
190 /* Ring Doorbell */
191 doorbell.word0 = 0;
192 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
193 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
194 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
195 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
196 return 0;
197}
198
199/**
200 * lpfc_sli4_mq_release - Updates internal hba index for MQ
201 * @q: The Mailbox Queue to operate on.
202 *
203 * This routine will update the HBA index of a queue to reflect consumption of
204 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
205 * an entry the host calls this function to update the queue's internal
206 * pointers. This routine returns the number of entries that were consumed by
207 * the HBA.
208 **/
209static uint32_t
210lpfc_sli4_mq_release(struct lpfc_queue *q)
211{
James Smart2e90f4b2011-12-13 13:22:37 -0500212 /* sanity check on queue memory */
213 if (unlikely(!q))
214 return 0;
215
James Smart4f774512009-05-22 14:52:35 -0400216 /* Clear the mailbox pointer for completion */
217 q->phba->mbox = NULL;
218 q->hba_index = ((q->hba_index + 1) % q->entry_count);
219 return 1;
220}
221
222/**
223 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
224 * @q: The Event Queue to get the first valid EQE from
225 *
226 * This routine will get the first valid Event Queue Entry from @q, update
227 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
228 * the Queue (no more work to do), or the Queue is full of EQEs that have been
229 * processed, but not popped back to the HBA then this routine will return NULL.
230 **/
231static struct lpfc_eqe *
232lpfc_sli4_eq_get(struct lpfc_queue *q)
233{
James Smart2e90f4b2011-12-13 13:22:37 -0500234 struct lpfc_eqe *eqe;
235
236 /* sanity check on queue memory */
237 if (unlikely(!q))
238 return NULL;
239 eqe = q->qe[q->hba_index].eqe;
James Smart4f774512009-05-22 14:52:35 -0400240
241 /* If the next EQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400242 if (!bf_get_le32(lpfc_eqe_valid, eqe))
James Smart4f774512009-05-22 14:52:35 -0400243 return NULL;
244 /* If the host has not yet processed the next entry then we are done */
245 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
246 return NULL;
247
248 q->hba_index = ((q->hba_index + 1) % q->entry_count);
249 return eqe;
250}
251
252/**
253 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
254 * @q: The Event Queue that the host has completed processing for.
255 * @arm: Indicates whether the host wants to arms this CQ.
256 *
257 * This routine will mark all Event Queue Entries on @q, from the last
258 * known completed entry to the last entry that was processed, as completed
259 * by clearing the valid bit for each completion queue entry. Then it will
260 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
261 * The internal host index in the @q will be updated by this routine to indicate
262 * that the host has finished processing the entries. The @arm parameter
263 * indicates that the queue should be rearmed when ringing the doorbell.
264 *
265 * This function will return the number of EQEs that were popped.
266 **/
267uint32_t
268lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
269{
270 uint32_t released = 0;
271 struct lpfc_eqe *temp_eqe;
272 struct lpfc_register doorbell;
273
James Smart2e90f4b2011-12-13 13:22:37 -0500274 /* sanity check on queue memory */
275 if (unlikely(!q))
276 return 0;
277
James Smart4f774512009-05-22 14:52:35 -0400278 /* while there are valid entries */
279 while (q->hba_index != q->host_index) {
280 temp_eqe = q->qe[q->host_index].eqe;
James Smartcb5172e2010-03-15 11:25:07 -0400281 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
James Smart4f774512009-05-22 14:52:35 -0400282 released++;
283 q->host_index = ((q->host_index + 1) % q->entry_count);
284 }
285 if (unlikely(released == 0 && !arm))
286 return 0;
287
288 /* ring doorbell for number popped */
289 doorbell.word0 = 0;
290 if (arm) {
291 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
292 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
293 }
294 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
295 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
James Smart6b5151f2012-01-18 16:24:06 -0500296 bf_set(lpfc_eqcq_doorbell_eqid_hi, &doorbell,
297 (q->queue_id >> LPFC_EQID_HI_FIELD_SHIFT));
298 bf_set(lpfc_eqcq_doorbell_eqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400299 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500300 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
301 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
302 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400303 return released;
304}
305
306/**
307 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
308 * @q: The Completion Queue to get the first valid CQE from
309 *
310 * This routine will get the first valid Completion Queue Entry from @q, update
311 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
312 * the Queue (no more work to do), or the Queue is full of CQEs that have been
313 * processed, but not popped back to the HBA then this routine will return NULL.
314 **/
315static struct lpfc_cqe *
316lpfc_sli4_cq_get(struct lpfc_queue *q)
317{
318 struct lpfc_cqe *cqe;
319
James Smart2e90f4b2011-12-13 13:22:37 -0500320 /* sanity check on queue memory */
321 if (unlikely(!q))
322 return NULL;
323
James Smart4f774512009-05-22 14:52:35 -0400324 /* If the next CQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400325 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
James Smart4f774512009-05-22 14:52:35 -0400326 return NULL;
327 /* If the host has not yet processed the next entry then we are done */
328 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
329 return NULL;
330
331 cqe = q->qe[q->hba_index].cqe;
332 q->hba_index = ((q->hba_index + 1) % q->entry_count);
333 return cqe;
334}
335
336/**
337 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
338 * @q: The Completion Queue that the host has completed processing for.
339 * @arm: Indicates whether the host wants to arms this CQ.
340 *
341 * This routine will mark all Completion queue entries on @q, from the last
342 * known completed entry to the last entry that was processed, as completed
343 * by clearing the valid bit for each completion queue entry. Then it will
344 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
345 * The internal host index in the @q will be updated by this routine to indicate
346 * that the host has finished processing the entries. The @arm parameter
347 * indicates that the queue should be rearmed when ringing the doorbell.
348 *
349 * This function will return the number of CQEs that were released.
350 **/
351uint32_t
352lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
353{
354 uint32_t released = 0;
355 struct lpfc_cqe *temp_qe;
356 struct lpfc_register doorbell;
357
James Smart2e90f4b2011-12-13 13:22:37 -0500358 /* sanity check on queue memory */
359 if (unlikely(!q))
360 return 0;
James Smart4f774512009-05-22 14:52:35 -0400361 /* while there are valid entries */
362 while (q->hba_index != q->host_index) {
363 temp_qe = q->qe[q->host_index].cqe;
James Smartcb5172e2010-03-15 11:25:07 -0400364 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
James Smart4f774512009-05-22 14:52:35 -0400365 released++;
366 q->host_index = ((q->host_index + 1) % q->entry_count);
367 }
368 if (unlikely(released == 0 && !arm))
369 return 0;
370
371 /* ring doorbell for number popped */
372 doorbell.word0 = 0;
373 if (arm)
374 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
375 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
376 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
James Smart6b5151f2012-01-18 16:24:06 -0500377 bf_set(lpfc_eqcq_doorbell_cqid_hi, &doorbell,
378 (q->queue_id >> LPFC_CQID_HI_FIELD_SHIFT));
379 bf_set(lpfc_eqcq_doorbell_cqid_lo, &doorbell, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400380 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
381 return released;
382}
383
384/**
385 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
386 * @q: The Header Receive Queue to operate on.
387 * @wqe: The Receive Queue Entry to put on the Receive queue.
388 *
389 * This routine will copy the contents of @wqe to the next available entry on
390 * the @q. This function will then ring the Receive Queue Doorbell to signal the
391 * HBA to start processing the Receive Queue Entry. This function returns the
392 * index that the rqe was copied to if successful. If no entries are available
393 * on @q then this function will return -ENOMEM.
394 * The caller is expected to hold the hbalock when calling this routine.
395 **/
396static int
397lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
398 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
399{
James Smart2e90f4b2011-12-13 13:22:37 -0500400 struct lpfc_rqe *temp_hrqe;
401 struct lpfc_rqe *temp_drqe;
James Smart4f774512009-05-22 14:52:35 -0400402 struct lpfc_register doorbell;
403 int put_index = hq->host_index;
404
James Smart2e90f4b2011-12-13 13:22:37 -0500405 /* sanity check on queue memory */
406 if (unlikely(!hq) || unlikely(!dq))
407 return -ENOMEM;
408 temp_hrqe = hq->qe[hq->host_index].rqe;
409 temp_drqe = dq->qe[dq->host_index].rqe;
410
James Smart4f774512009-05-22 14:52:35 -0400411 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
412 return -EINVAL;
413 if (hq->host_index != dq->host_index)
414 return -EINVAL;
415 /* If the host has not yet processed the next entry then we are done */
416 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
417 return -EBUSY;
418 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
419 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
420
421 /* Update the host index to point to the next slot */
422 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
423 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
424
425 /* Ring The Header Receive Queue Doorbell */
James Smart73d91e52011-10-10 21:32:10 -0400426 if (!(hq->host_index % hq->entry_repost)) {
James Smart4f774512009-05-22 14:52:35 -0400427 doorbell.word0 = 0;
428 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
James Smart73d91e52011-10-10 21:32:10 -0400429 hq->entry_repost);
James Smart4f774512009-05-22 14:52:35 -0400430 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
431 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
432 }
433 return put_index;
434}
435
436/**
437 * lpfc_sli4_rq_release - Updates internal hba index for RQ
438 * @q: The Header Receive Queue to operate on.
439 *
440 * This routine will update the HBA index of a queue to reflect consumption of
441 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
442 * consumed an entry the host calls this function to update the queue's
443 * internal pointers. This routine returns the number of entries that were
444 * consumed by the HBA.
445 **/
446static uint32_t
447lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
448{
James Smart2e90f4b2011-12-13 13:22:37 -0500449 /* sanity check on queue memory */
450 if (unlikely(!hq) || unlikely(!dq))
451 return 0;
452
James Smart4f774512009-05-22 14:52:35 -0400453 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
454 return 0;
455 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
456 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
457 return 1;
458}
459
James Smarte59058c2008-08-24 21:49:00 -0400460/**
James Smart3621a712009-04-06 18:47:14 -0400461 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400462 * @phba: Pointer to HBA context object.
463 * @pring: Pointer to driver SLI ring object.
464 *
465 * This function returns pointer to next command iocb entry
466 * in the command ring. The caller must hold hbalock to prevent
467 * other threads consume the next command iocb.
468 * SLI-2/SLI-3 provide different sized iocbs.
469 **/
James Smarted957682007-06-17 19:56:37 -0500470static inline IOCB_t *
471lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
472{
473 return (IOCB_t *) (((char *) pring->cmdringaddr) +
474 pring->cmdidx * phba->iocb_cmd_size);
475}
476
James Smarte59058c2008-08-24 21:49:00 -0400477/**
James Smart3621a712009-04-06 18:47:14 -0400478 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400479 * @phba: Pointer to HBA context object.
480 * @pring: Pointer to driver SLI ring object.
481 *
482 * This function returns pointer to next response iocb entry
483 * in the response ring. The caller must hold hbalock to make sure
484 * that no other thread consume the next response iocb.
485 * SLI-2/SLI-3 provide different sized iocbs.
486 **/
James Smarted957682007-06-17 19:56:37 -0500487static inline IOCB_t *
488lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
489{
490 return (IOCB_t *) (((char *) pring->rspringaddr) +
491 pring->rspidx * phba->iocb_rsp_size);
492}
493
James Smarte59058c2008-08-24 21:49:00 -0400494/**
James Smart3621a712009-04-06 18:47:14 -0400495 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400496 * @phba: Pointer to HBA context object.
497 *
498 * This function is called with hbalock held. This function
499 * allocates a new driver iocb object from the iocb pool. If the
500 * allocation is successful, it returns pointer to the newly
501 * allocated iocb object else it returns NULL.
502 **/
James Smart2e0fef82007-06-17 19:56:36 -0500503static struct lpfc_iocbq *
504__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400505{
506 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
507 struct lpfc_iocbq * iocbq = NULL;
508
509 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400510 if (iocbq)
511 phba->iocb_cnt++;
512 if (phba->iocb_cnt > phba->iocb_max)
513 phba->iocb_max = phba->iocb_cnt;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400514 return iocbq;
515}
516
James Smarte59058c2008-08-24 21:49:00 -0400517/**
James Smartda0436e2009-05-22 14:51:39 -0400518 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
519 * @phba: Pointer to HBA context object.
520 * @xritag: XRI value.
521 *
522 * This function clears the sglq pointer from the array of acive
523 * sglq's. The xritag that is passed in is used to index into the
524 * array. Before the xritag can be used it needs to be adjusted
525 * by subtracting the xribase.
526 *
527 * Returns sglq ponter = success, NULL = Failure.
528 **/
529static struct lpfc_sglq *
530__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
531{
James Smartda0436e2009-05-22 14:51:39 -0400532 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400533
534 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
535 phba->sli4_hba.lpfc_sglq_active_list[xritag] = NULL;
James Smartda0436e2009-05-22 14:51:39 -0400536 return sglq;
537}
538
539/**
540 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
541 * @phba: Pointer to HBA context object.
542 * @xritag: XRI value.
543 *
544 * This function returns the sglq pointer from the array of acive
545 * sglq's. The xritag that is passed in is used to index into the
546 * array. Before the xritag can be used it needs to be adjusted
547 * by subtracting the xribase.
548 *
549 * Returns sglq ponter = success, NULL = Failure.
550 **/
James Smart0f65ff62010-02-26 14:14:23 -0500551struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400552__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
553{
James Smartda0436e2009-05-22 14:51:39 -0400554 struct lpfc_sglq *sglq;
James Smart6d368e52011-05-24 11:44:12 -0400555
556 sglq = phba->sli4_hba.lpfc_sglq_active_list[xritag];
James Smartda0436e2009-05-22 14:51:39 -0400557 return sglq;
558}
559
560/**
James Smart1151e3e2011-02-16 12:39:35 -0500561 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500562 * @phba: Pointer to HBA context object.
563 * @xritag: xri used in this exchange.
564 * @rrq: The RRQ to be cleared.
565 *
James Smart19ca7602010-11-20 23:11:55 -0500566 **/
James Smart1151e3e2011-02-16 12:39:35 -0500567void
568lpfc_clr_rrq_active(struct lpfc_hba *phba,
569 uint16_t xritag,
570 struct lpfc_node_rrq *rrq)
James Smart19ca7602010-11-20 23:11:55 -0500571{
James Smart1151e3e2011-02-16 12:39:35 -0500572 struct lpfc_nodelist *ndlp = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500573
James Smart1151e3e2011-02-16 12:39:35 -0500574 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
575 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
James Smart19ca7602010-11-20 23:11:55 -0500576
577 /* The target DID could have been swapped (cable swap)
578 * we should use the ndlp from the findnode if it is
579 * available.
580 */
James Smart1151e3e2011-02-16 12:39:35 -0500581 if ((!ndlp) && rrq->ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500582 ndlp = rrq->ndlp;
583
James Smart1151e3e2011-02-16 12:39:35 -0500584 if (!ndlp)
585 goto out;
586
James Smart6d368e52011-05-24 11:44:12 -0400587 if (test_and_clear_bit(xritag, ndlp->active_rrqs.xri_bitmap)) {
James Smart19ca7602010-11-20 23:11:55 -0500588 rrq->send_rrq = 0;
589 rrq->xritag = 0;
590 rrq->rrq_stop_time = 0;
591 }
James Smart1151e3e2011-02-16 12:39:35 -0500592out:
James Smart19ca7602010-11-20 23:11:55 -0500593 mempool_free(rrq, phba->rrq_pool);
594}
595
596/**
597 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
598 * @phba: Pointer to HBA context object.
599 *
600 * This function is called with hbalock held. This function
601 * Checks if stop_time (ratov from setting rrq active) has
602 * been reached, if it has and the send_rrq flag is set then
603 * it will call lpfc_send_rrq. If the send_rrq flag is not set
604 * then it will just call the routine to clear the rrq and
605 * free the rrq resource.
606 * The timer is set to the next rrq that is going to expire before
607 * leaving the routine.
608 *
609 **/
610void
611lpfc_handle_rrq_active(struct lpfc_hba *phba)
612{
613 struct lpfc_node_rrq *rrq;
614 struct lpfc_node_rrq *nextrrq;
615 unsigned long next_time;
616 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500617 LIST_HEAD(send_rrq);
James Smart19ca7602010-11-20 23:11:55 -0500618
619 spin_lock_irqsave(&phba->hbalock, iflags);
620 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
621 next_time = jiffies + HZ * (phba->fc_ratov + 1);
622 list_for_each_entry_safe(rrq, nextrrq,
James Smart1151e3e2011-02-16 12:39:35 -0500623 &phba->active_rrq_list, list) {
624 if (time_after(jiffies, rrq->rrq_stop_time))
625 list_move(&rrq->list, &send_rrq);
626 else if (time_before(rrq->rrq_stop_time, next_time))
James Smart19ca7602010-11-20 23:11:55 -0500627 next_time = rrq->rrq_stop_time;
628 }
629 spin_unlock_irqrestore(&phba->hbalock, iflags);
630 if (!list_empty(&phba->active_rrq_list))
631 mod_timer(&phba->rrq_tmr, next_time);
James Smart1151e3e2011-02-16 12:39:35 -0500632 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
633 list_del(&rrq->list);
634 if (!rrq->send_rrq)
635 /* this call will free the rrq */
636 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
637 else if (lpfc_send_rrq(phba, rrq)) {
638 /* if we send the rrq then the completion handler
639 * will clear the bit in the xribitmap.
640 */
641 lpfc_clr_rrq_active(phba, rrq->xritag,
642 rrq);
643 }
644 }
James Smart19ca7602010-11-20 23:11:55 -0500645}
646
647/**
648 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
649 * @vport: Pointer to vport context object.
650 * @xri: The xri used in the exchange.
651 * @did: The targets DID for this exchange.
652 *
653 * returns NULL = rrq not found in the phba->active_rrq_list.
654 * rrq = rrq for this xri and target.
655 **/
656struct lpfc_node_rrq *
657lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
658{
659 struct lpfc_hba *phba = vport->phba;
660 struct lpfc_node_rrq *rrq;
661 struct lpfc_node_rrq *nextrrq;
662 unsigned long iflags;
663
664 if (phba->sli_rev != LPFC_SLI_REV4)
665 return NULL;
666 spin_lock_irqsave(&phba->hbalock, iflags);
667 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
668 if (rrq->vport == vport && rrq->xritag == xri &&
669 rrq->nlp_DID == did){
670 list_del(&rrq->list);
671 spin_unlock_irqrestore(&phba->hbalock, iflags);
672 return rrq;
673 }
674 }
675 spin_unlock_irqrestore(&phba->hbalock, iflags);
676 return NULL;
677}
678
679/**
680 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
681 * @vport: Pointer to vport context object.
James Smart1151e3e2011-02-16 12:39:35 -0500682 * @ndlp: Pointer to the lpfc_node_list structure.
683 * If ndlp is NULL Remove all active RRQs for this vport from the
684 * phba->active_rrq_list and clear the rrq.
685 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
James Smart19ca7602010-11-20 23:11:55 -0500686 **/
687void
James Smart1151e3e2011-02-16 12:39:35 -0500688lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500689
690{
691 struct lpfc_hba *phba = vport->phba;
692 struct lpfc_node_rrq *rrq;
693 struct lpfc_node_rrq *nextrrq;
694 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500695 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500696
697 if (phba->sli_rev != LPFC_SLI_REV4)
698 return;
James Smart1151e3e2011-02-16 12:39:35 -0500699 if (!ndlp) {
700 lpfc_sli4_vport_delete_els_xri_aborted(vport);
701 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
James Smart19ca7602010-11-20 23:11:55 -0500702 }
James Smart1151e3e2011-02-16 12:39:35 -0500703 spin_lock_irqsave(&phba->hbalock, iflags);
704 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
705 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
706 list_move(&rrq->list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500707 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500708
709 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
710 list_del(&rrq->list);
711 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
712 }
James Smart19ca7602010-11-20 23:11:55 -0500713}
714
715/**
716 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
717 * @phba: Pointer to HBA context object.
718 *
719 * Remove all rrqs from the phba->active_rrq_list and free them by
720 * calling __lpfc_clr_active_rrq
721 *
722 **/
723void
724lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
725{
726 struct lpfc_node_rrq *rrq;
727 struct lpfc_node_rrq *nextrrq;
728 unsigned long next_time;
729 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500730 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500731
732 if (phba->sli_rev != LPFC_SLI_REV4)
733 return;
734 spin_lock_irqsave(&phba->hbalock, iflags);
735 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
736 next_time = jiffies + HZ * (phba->fc_ratov * 2);
James Smart1151e3e2011-02-16 12:39:35 -0500737 list_splice_init(&phba->active_rrq_list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500738 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500739
740 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
741 list_del(&rrq->list);
742 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
743 }
James Smart19ca7602010-11-20 23:11:55 -0500744 if (!list_empty(&phba->active_rrq_list))
745 mod_timer(&phba->rrq_tmr, next_time);
746}
747
748
749/**
James Smart1151e3e2011-02-16 12:39:35 -0500750 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500751 * @phba: Pointer to HBA context object.
752 * @ndlp: Targets nodelist pointer for this exchange.
753 * @xritag the xri in the bitmap to test.
754 *
755 * This function is called with hbalock held. This function
756 * returns 0 = rrq not active for this xri
757 * 1 = rrq is valid for this xri.
758 **/
James Smart1151e3e2011-02-16 12:39:35 -0500759int
760lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smart19ca7602010-11-20 23:11:55 -0500761 uint16_t xritag)
762{
James Smart19ca7602010-11-20 23:11:55 -0500763 if (!ndlp)
764 return 0;
James Smart6d368e52011-05-24 11:44:12 -0400765 if (test_bit(xritag, ndlp->active_rrqs.xri_bitmap))
James Smart19ca7602010-11-20 23:11:55 -0500766 return 1;
767 else
768 return 0;
769}
770
771/**
772 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
773 * @phba: Pointer to HBA context object.
774 * @ndlp: nodelist pointer for this target.
775 * @xritag: xri used in this exchange.
776 * @rxid: Remote Exchange ID.
777 * @send_rrq: Flag used to determine if we should send rrq els cmd.
778 *
779 * This function takes the hbalock.
780 * The active bit is always set in the active rrq xri_bitmap even
781 * if there is no slot avaiable for the other rrq information.
782 *
783 * returns 0 rrq actived for this xri
784 * < 0 No memory or invalid ndlp.
785 **/
786int
787lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smartb42c07c2012-01-18 16:25:55 -0500788 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
James Smart19ca7602010-11-20 23:11:55 -0500789{
James Smart19ca7602010-11-20 23:11:55 -0500790 unsigned long iflags;
James Smartb42c07c2012-01-18 16:25:55 -0500791 struct lpfc_node_rrq *rrq;
792 int empty;
793
794 if (!ndlp)
795 return -EINVAL;
796
797 if (!phba->cfg_enable_rrq)
798 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500799
800 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500801 if (phba->pport->load_flag & FC_UNLOADING) {
802 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
803 goto out;
804 }
805
806 /*
807 * set the active bit even if there is no mem available.
808 */
809 if (NLP_CHK_FREE_REQ(ndlp))
810 goto out;
811
812 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
813 goto out;
814
815 if (test_and_set_bit(xritag, ndlp->active_rrqs.xri_bitmap))
816 goto out;
817
James Smart19ca7602010-11-20 23:11:55 -0500818 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smartb42c07c2012-01-18 16:25:55 -0500819 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
820 if (!rrq) {
821 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
822 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
823 " DID:0x%x Send:%d\n",
824 xritag, rxid, ndlp->nlp_DID, send_rrq);
825 return -EINVAL;
826 }
827 rrq->send_rrq = send_rrq;
828 rrq->xritag = xritag;
829 rrq->rrq_stop_time = jiffies + HZ * (phba->fc_ratov + 1);
830 rrq->ndlp = ndlp;
831 rrq->nlp_DID = ndlp->nlp_DID;
832 rrq->vport = ndlp->vport;
833 rrq->rxid = rxid;
834 rrq->send_rrq = send_rrq;
835 spin_lock_irqsave(&phba->hbalock, iflags);
836 empty = list_empty(&phba->active_rrq_list);
837 list_add_tail(&rrq->list, &phba->active_rrq_list);
838 phba->hba_flag |= HBA_RRQ_ACTIVE;
839 if (empty)
840 lpfc_worker_wake_up(phba);
841 spin_unlock_irqrestore(&phba->hbalock, iflags);
842 return 0;
843out:
844 spin_unlock_irqrestore(&phba->hbalock, iflags);
845 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
846 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
847 " DID:0x%x Send:%d\n",
848 xritag, rxid, ndlp->nlp_DID, send_rrq);
849 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500850}
851
852/**
James Smartda0436e2009-05-22 14:51:39 -0400853 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
854 * @phba: Pointer to HBA context object.
James Smart19ca7602010-11-20 23:11:55 -0500855 * @piocb: Pointer to the iocbq.
James Smartda0436e2009-05-22 14:51:39 -0400856 *
857 * This function is called with hbalock held. This function
James Smart6d368e52011-05-24 11:44:12 -0400858 * gets a new driver sglq object from the sglq list. If the
James Smartda0436e2009-05-22 14:51:39 -0400859 * list is not empty then it is successful, it returns pointer to the newly
860 * allocated sglq object else it returns NULL.
861 **/
862static struct lpfc_sglq *
James Smart19ca7602010-11-20 23:11:55 -0500863__lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
James Smartda0436e2009-05-22 14:51:39 -0400864{
865 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
866 struct lpfc_sglq *sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500867 struct lpfc_sglq *start_sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500868 struct lpfc_scsi_buf *lpfc_cmd;
869 struct lpfc_nodelist *ndlp;
870 int found = 0;
871
872 if (piocbq->iocb_flag & LPFC_IO_FCP) {
873 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
874 ndlp = lpfc_cmd->rdata->pnode;
James Smartbe858b62010-12-15 17:57:20 -0500875 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
876 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
James Smart19ca7602010-11-20 23:11:55 -0500877 ndlp = piocbq->context_un.ndlp;
James Smart19ca7602010-11-20 23:11:55 -0500878 else
879 ndlp = piocbq->context1;
880
James Smartda0436e2009-05-22 14:51:39 -0400881 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
James Smart19ca7602010-11-20 23:11:55 -0500882 start_sglq = sglq;
883 while (!found) {
884 if (!sglq)
885 return NULL;
James Smart1151e3e2011-02-16 12:39:35 -0500886 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
James Smart19ca7602010-11-20 23:11:55 -0500887 /* This xri has an rrq outstanding for this DID.
888 * put it back in the list and get another xri.
889 */
890 list_add_tail(&sglq->list, lpfc_sgl_list);
891 sglq = NULL;
892 list_remove_head(lpfc_sgl_list, sglq,
893 struct lpfc_sglq, list);
894 if (sglq == start_sglq) {
895 sglq = NULL;
896 break;
897 } else
898 continue;
899 }
900 sglq->ndlp = ndlp;
901 found = 1;
James Smart6d368e52011-05-24 11:44:12 -0400902 phba->sli4_hba.lpfc_sglq_active_list[sglq->sli4_lxritag] = sglq;
James Smart19ca7602010-11-20 23:11:55 -0500903 sglq->state = SGL_ALLOCATED;
904 }
James Smartda0436e2009-05-22 14:51:39 -0400905 return sglq;
906}
907
908/**
James Smart3621a712009-04-06 18:47:14 -0400909 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400910 * @phba: Pointer to HBA context object.
911 *
912 * This function is called with no lock held. This function
913 * allocates a new driver iocb object from the iocb pool. If the
914 * allocation is successful, it returns pointer to the newly
915 * allocated iocb object else it returns NULL.
916 **/
James Smart2e0fef82007-06-17 19:56:36 -0500917struct lpfc_iocbq *
918lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500919{
James Smart2e0fef82007-06-17 19:56:36 -0500920 struct lpfc_iocbq * iocbq = NULL;
921 unsigned long iflags;
922
923 spin_lock_irqsave(&phba->hbalock, iflags);
924 iocbq = __lpfc_sli_get_iocbq(phba);
925 spin_unlock_irqrestore(&phba->hbalock, iflags);
926 return iocbq;
927}
928
James Smarte59058c2008-08-24 21:49:00 -0400929/**
James Smart4f774512009-05-22 14:52:35 -0400930 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
931 * @phba: Pointer to HBA context object.
932 * @iocbq: Pointer to driver iocb object.
933 *
934 * This function is called with hbalock held to release driver
935 * iocb object to the iocb pool. The iotag in the iocb object
936 * does not change for each use of the iocb object. This function
937 * clears all other fields of the iocb object when it is freed.
938 * The sqlq structure that holds the xritag and phys and virtual
939 * mappings for the scatter gather list is retrieved from the
940 * active array of sglq. The get of the sglq pointer also clears
941 * the entry in the array. If the status of the IO indiactes that
942 * this IO was aborted then the sglq entry it put on the
943 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
944 * IO has good status or fails for any other reason then the sglq
945 * entry is added to the free list (lpfc_sgl_list).
946 **/
947static void
948__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
949{
950 struct lpfc_sglq *sglq;
951 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
James Smart2a9bf3d2010-06-07 15:24:45 -0400952 unsigned long iflag = 0;
953 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart4f774512009-05-22 14:52:35 -0400954
955 if (iocbq->sli4_xritag == NO_XRI)
956 sglq = NULL;
957 else
James Smart6d368e52011-05-24 11:44:12 -0400958 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_lxritag);
959
James Smart4f774512009-05-22 14:52:35 -0400960 if (sglq) {
James Smart0f65ff62010-02-26 14:14:23 -0500961 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
962 (sglq->state != SGL_XRI_ABORTED)) {
James Smart4f774512009-05-22 14:52:35 -0400963 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
964 iflag);
965 list_add(&sglq->list,
966 &phba->sli4_hba.lpfc_abts_els_sgl_list);
967 spin_unlock_irqrestore(
968 &phba->sli4_hba.abts_sgl_list_lock, iflag);
James Smart0f65ff62010-02-26 14:14:23 -0500969 } else {
970 sglq->state = SGL_FREED;
James Smart19ca7602010-11-20 23:11:55 -0500971 sglq->ndlp = NULL;
James Smartfedd3b72011-02-16 12:39:24 -0500972 list_add_tail(&sglq->list,
973 &phba->sli4_hba.lpfc_sgl_list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400974
975 /* Check if TXQ queue needs to be serviced */
James Smart589a52d2010-07-14 15:30:54 -0400976 if (pring->txq_cnt)
James Smart2a9bf3d2010-06-07 15:24:45 -0400977 lpfc_worker_wake_up(phba);
James Smart0f65ff62010-02-26 14:14:23 -0500978 }
James Smart4f774512009-05-22 14:52:35 -0400979 }
980
981
982 /*
983 * Clean all volatile data fields, preserve iotag and node struct.
984 */
985 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
James Smart6d368e52011-05-24 11:44:12 -0400986 iocbq->sli4_lxritag = NO_XRI;
James Smart4f774512009-05-22 14:52:35 -0400987 iocbq->sli4_xritag = NO_XRI;
988 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
989}
990
James Smart2a9bf3d2010-06-07 15:24:45 -0400991
James Smart4f774512009-05-22 14:52:35 -0400992/**
James Smart3772a992009-05-22 14:50:54 -0400993 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
994 * @phba: Pointer to HBA context object.
995 * @iocbq: Pointer to driver iocb object.
996 *
997 * This function is called with hbalock held to release driver
998 * iocb object to the iocb pool. The iotag in the iocb object
999 * does not change for each use of the iocb object. This function
1000 * clears all other fields of the iocb object when it is freed.
1001 **/
1002static void
1003__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1004{
1005 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
1006
1007 /*
1008 * Clean all volatile data fields, preserve iotag and node struct.
1009 */
1010 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
1011 iocbq->sli4_xritag = NO_XRI;
1012 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1013}
1014
1015/**
James Smart3621a712009-04-06 18:47:14 -04001016 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001017 * @phba: Pointer to HBA context object.
1018 * @iocbq: Pointer to driver iocb object.
1019 *
1020 * This function is called with hbalock held to release driver
1021 * iocb object to the iocb pool. The iotag in the iocb object
1022 * does not change for each use of the iocb object. This function
1023 * clears all other fields of the iocb object when it is freed.
1024 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001025static void
James Smart2e0fef82007-06-17 19:56:36 -05001026__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1027{
James Smart3772a992009-05-22 14:50:54 -04001028 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001029 phba->iocb_cnt--;
James Bottomley604a3e32005-10-29 10:28:33 -05001030}
1031
James Smarte59058c2008-08-24 21:49:00 -04001032/**
James Smart3621a712009-04-06 18:47:14 -04001033 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001034 * @phba: Pointer to HBA context object.
1035 * @iocbq: Pointer to driver iocb object.
1036 *
1037 * This function is called with no lock held to release the iocb to
1038 * iocb pool.
1039 **/
James Smart2e0fef82007-06-17 19:56:36 -05001040void
1041lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1042{
1043 unsigned long iflags;
1044
1045 /*
1046 * Clean all volatile data fields, preserve iotag and node struct.
1047 */
1048 spin_lock_irqsave(&phba->hbalock, iflags);
1049 __lpfc_sli_release_iocbq(phba, iocbq);
1050 spin_unlock_irqrestore(&phba->hbalock, iflags);
1051}
1052
James Smarte59058c2008-08-24 21:49:00 -04001053/**
James Smarta257bf92009-04-06 18:48:10 -04001054 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1055 * @phba: Pointer to HBA context object.
1056 * @iocblist: List of IOCBs.
1057 * @ulpstatus: ULP status in IOCB command field.
1058 * @ulpWord4: ULP word-4 in IOCB command field.
1059 *
1060 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1061 * on the list by invoking the complete callback function associated with the
1062 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1063 * fields.
1064 **/
1065void
1066lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1067 uint32_t ulpstatus, uint32_t ulpWord4)
1068{
1069 struct lpfc_iocbq *piocb;
1070
1071 while (!list_empty(iocblist)) {
1072 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1073
1074 if (!piocb->iocb_cmpl)
1075 lpfc_sli_release_iocbq(phba, piocb);
1076 else {
1077 piocb->iocb.ulpStatus = ulpstatus;
1078 piocb->iocb.un.ulpWord[4] = ulpWord4;
1079 (piocb->iocb_cmpl) (phba, piocb, piocb);
1080 }
1081 }
1082 return;
1083}
1084
1085/**
James Smart3621a712009-04-06 18:47:14 -04001086 * lpfc_sli_iocb_cmd_type - Get the iocb type
1087 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -04001088 *
1089 * This function is called by ring event handler function to get the iocb type.
1090 * This function translates the iocb command to an iocb command type used to
1091 * decide the final disposition of each completed IOCB.
1092 * The function returns
1093 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1094 * LPFC_SOL_IOCB if it is a solicited iocb completion
1095 * LPFC_ABORT_IOCB if it is an abort iocb
1096 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1097 *
1098 * The caller is not required to hold any lock.
1099 **/
dea31012005-04-17 16:05:31 -05001100static lpfc_iocb_type
1101lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1102{
1103 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1104
1105 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1106 return 0;
1107
1108 switch (iocb_cmnd) {
1109 case CMD_XMIT_SEQUENCE_CR:
1110 case CMD_XMIT_SEQUENCE_CX:
1111 case CMD_XMIT_BCAST_CN:
1112 case CMD_XMIT_BCAST_CX:
1113 case CMD_ELS_REQUEST_CR:
1114 case CMD_ELS_REQUEST_CX:
1115 case CMD_CREATE_XRI_CR:
1116 case CMD_CREATE_XRI_CX:
1117 case CMD_GET_RPI_CN:
1118 case CMD_XMIT_ELS_RSP_CX:
1119 case CMD_GET_RPI_CR:
1120 case CMD_FCP_IWRITE_CR:
1121 case CMD_FCP_IWRITE_CX:
1122 case CMD_FCP_IREAD_CR:
1123 case CMD_FCP_IREAD_CX:
1124 case CMD_FCP_ICMND_CR:
1125 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -05001126 case CMD_FCP_TSEND_CX:
1127 case CMD_FCP_TRSP_CX:
1128 case CMD_FCP_TRECEIVE_CX:
1129 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -05001130 case CMD_ADAPTER_MSG:
1131 case CMD_ADAPTER_DUMP:
1132 case CMD_XMIT_SEQUENCE64_CR:
1133 case CMD_XMIT_SEQUENCE64_CX:
1134 case CMD_XMIT_BCAST64_CN:
1135 case CMD_XMIT_BCAST64_CX:
1136 case CMD_ELS_REQUEST64_CR:
1137 case CMD_ELS_REQUEST64_CX:
1138 case CMD_FCP_IWRITE64_CR:
1139 case CMD_FCP_IWRITE64_CX:
1140 case CMD_FCP_IREAD64_CR:
1141 case CMD_FCP_IREAD64_CX:
1142 case CMD_FCP_ICMND64_CR:
1143 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -05001144 case CMD_FCP_TSEND64_CX:
1145 case CMD_FCP_TRSP64_CX:
1146 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -05001147 case CMD_GEN_REQUEST64_CR:
1148 case CMD_GEN_REQUEST64_CX:
1149 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -04001150 case DSSCMD_IWRITE64_CR:
1151 case DSSCMD_IWRITE64_CX:
1152 case DSSCMD_IREAD64_CR:
1153 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -05001154 type = LPFC_SOL_IOCB;
1155 break;
1156 case CMD_ABORT_XRI_CN:
1157 case CMD_ABORT_XRI_CX:
1158 case CMD_CLOSE_XRI_CN:
1159 case CMD_CLOSE_XRI_CX:
1160 case CMD_XRI_ABORTED_CX:
1161 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -04001162 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -05001163 type = LPFC_ABORT_IOCB;
1164 break;
1165 case CMD_RCV_SEQUENCE_CX:
1166 case CMD_RCV_ELS_REQ_CX:
1167 case CMD_RCV_SEQUENCE64_CX:
1168 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -04001169 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -05001170 case CMD_IOCB_RCV_SEQ64_CX:
1171 case CMD_IOCB_RCV_ELS64_CX:
1172 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -05001173 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -05001174 type = LPFC_UNSOL_IOCB;
1175 break;
James Smart3163f722008-02-08 18:50:25 -05001176 case CMD_IOCB_XMIT_MSEQ64_CR:
1177 case CMD_IOCB_XMIT_MSEQ64_CX:
1178 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1179 case CMD_IOCB_RCV_ELS_LIST64_CX:
1180 case CMD_IOCB_CLOSE_EXTENDED_CN:
1181 case CMD_IOCB_ABORT_EXTENDED_CN:
1182 case CMD_IOCB_RET_HBQE64_CN:
1183 case CMD_IOCB_FCP_IBIDIR64_CR:
1184 case CMD_IOCB_FCP_IBIDIR64_CX:
1185 case CMD_IOCB_FCP_ITASKMGT64_CX:
1186 case CMD_IOCB_LOGENTRY_CN:
1187 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1188 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07001189 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -05001190 type = LPFC_UNKNOWN_IOCB;
1191 break;
dea31012005-04-17 16:05:31 -05001192 default:
1193 type = LPFC_UNKNOWN_IOCB;
1194 break;
1195 }
1196
1197 return type;
1198}
1199
James Smarte59058c2008-08-24 21:49:00 -04001200/**
James Smart3621a712009-04-06 18:47:14 -04001201 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -04001202 * @phba: Pointer to HBA context object.
1203 *
1204 * This function is called from SLI initialization code
1205 * to configure every ring of the HBA's SLI interface. The
1206 * caller is not required to hold any lock. This function issues
1207 * a config_ring mailbox command for each ring.
1208 * This function returns zero if successful else returns a negative
1209 * error code.
1210 **/
dea31012005-04-17 16:05:31 -05001211static int
James Smarted957682007-06-17 19:56:37 -05001212lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001213{
1214 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -05001215 LPFC_MBOXQ_t *pmb;
1216 MAILBOX_t *pmbox;
1217 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -05001218
James Smarted957682007-06-17 19:56:37 -05001219 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1220 if (!pmb)
1221 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -04001222 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05001223 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05001224 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -05001225 lpfc_config_ring(phba, i, pmb);
1226 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1227 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -05001228 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04001229 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -05001230 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1231 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001232 rc, pmbox->mbxCommand,
1233 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -05001234 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05001235 ret = -ENXIO;
1236 break;
dea31012005-04-17 16:05:31 -05001237 }
1238 }
James Smarted957682007-06-17 19:56:37 -05001239 mempool_free(pmb, phba->mbox_mem_pool);
1240 return ret;
dea31012005-04-17 16:05:31 -05001241}
1242
James Smarte59058c2008-08-24 21:49:00 -04001243/**
James Smart3621a712009-04-06 18:47:14 -04001244 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -04001245 * @phba: Pointer to HBA context object.
1246 * @pring: Pointer to driver SLI ring object.
1247 * @piocb: Pointer to the driver iocb object.
1248 *
1249 * This function is called with hbalock held. The function adds the
1250 * new iocb to txcmplq of the given ring. This function always returns
1251 * 0. If this function is called for ELS ring, this function checks if
1252 * there is a vport associated with the ELS command. This function also
1253 * starts els_tmofunc timer if this is an ELS command.
1254 **/
dea31012005-04-17 16:05:31 -05001255static int
James Smart2e0fef82007-06-17 19:56:36 -05001256lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1257 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05001258{
dea31012005-04-17 16:05:31 -05001259 list_add_tail(&piocb->list, &pring->txcmplq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001260 piocb->iocb_flag |= LPFC_IO_ON_Q;
dea31012005-04-17 16:05:31 -05001261 pring->txcmplq_cnt++;
James Smart2a9bf3d2010-06-07 15:24:45 -04001262 if (pring->txcmplq_cnt > pring->txcmplq_max)
1263 pring->txcmplq_max = pring->txcmplq_cnt;
1264
James Smart92d7f7b2007-06-17 19:56:38 -05001265 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1266 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1267 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1268 if (!piocb->vport)
1269 BUG();
1270 else
1271 mod_timer(&piocb->vport->els_tmofunc,
1272 jiffies + HZ * (phba->fc_ratov << 1));
1273 }
1274
dea31012005-04-17 16:05:31 -05001275
James Smart2e0fef82007-06-17 19:56:36 -05001276 return 0;
dea31012005-04-17 16:05:31 -05001277}
1278
James Smarte59058c2008-08-24 21:49:00 -04001279/**
James Smart3621a712009-04-06 18:47:14 -04001280 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -04001281 * @phba: Pointer to HBA context object.
1282 * @pring: Pointer to driver SLI ring object.
1283 *
1284 * This function is called with hbalock held to get next
1285 * iocb in txq of the given ring. If there is any iocb in
1286 * the txq, the function returns first iocb in the list after
1287 * removing the iocb from the list, else it returns NULL.
1288 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04001289struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05001290lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001291{
dea31012005-04-17 16:05:31 -05001292 struct lpfc_iocbq *cmd_iocb;
1293
James Smart858c9f62007-06-17 19:56:39 -05001294 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1295 if (cmd_iocb != NULL)
dea31012005-04-17 16:05:31 -05001296 pring->txq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05001297 return cmd_iocb;
dea31012005-04-17 16:05:31 -05001298}
1299
James Smarte59058c2008-08-24 21:49:00 -04001300/**
James Smart3621a712009-04-06 18:47:14 -04001301 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -04001302 * @phba: Pointer to HBA context object.
1303 * @pring: Pointer to driver SLI ring object.
1304 *
1305 * This function is called with hbalock held and the caller must post the
1306 * iocb without releasing the lock. If the caller releases the lock,
1307 * iocb slot returned by the function is not guaranteed to be available.
1308 * The function returns pointer to the next available iocb slot if there
1309 * is available slot in the ring, else it returns NULL.
1310 * If the get index of the ring is ahead of the put index, the function
1311 * will post an error attention event to the worker thread to take the
1312 * HBA to offline state.
1313 **/
dea31012005-04-17 16:05:31 -05001314static IOCB_t *
1315lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1316{
James Smart34b02dc2008-08-24 21:49:55 -04001317 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05001318 uint32_t max_cmd_idx = pring->numCiocb;
dea31012005-04-17 16:05:31 -05001319 if ((pring->next_cmdidx == pring->cmdidx) &&
1320 (++pring->next_cmdidx >= max_cmd_idx))
1321 pring->next_cmdidx = 0;
1322
1323 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
1324
1325 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1326
1327 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
1328 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001329 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02001330 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001331 pring->ringno,
dea31012005-04-17 16:05:31 -05001332 pring->local_getidx, max_cmd_idx);
1333
James Smart2e0fef82007-06-17 19:56:36 -05001334 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001335 /*
1336 * All error attention handlers are posted to
1337 * worker thread
1338 */
1339 phba->work_ha |= HA_ERATT;
1340 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05001341
James Smart5e9d9b82008-06-14 22:52:53 -04001342 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05001343
1344 return NULL;
1345 }
1346
1347 if (pring->local_getidx == pring->next_cmdidx)
1348 return NULL;
1349 }
1350
James Smarted957682007-06-17 19:56:37 -05001351 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -05001352}
1353
James Smarte59058c2008-08-24 21:49:00 -04001354/**
James Smart3621a712009-04-06 18:47:14 -04001355 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -04001356 * @phba: Pointer to HBA context object.
1357 * @iocbq: Pointer to driver iocb object.
1358 *
1359 * This function gets an iotag for the iocb. If there is no unused iotag and
1360 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1361 * array and assigns a new iotag.
1362 * The function returns the allocated iotag if successful, else returns zero.
1363 * Zero is not a valid iotag.
1364 * The caller is not required to hold any lock.
1365 **/
James Bottomley604a3e32005-10-29 10:28:33 -05001366uint16_t
James Smart2e0fef82007-06-17 19:56:36 -05001367lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -05001368{
James Smart2e0fef82007-06-17 19:56:36 -05001369 struct lpfc_iocbq **new_arr;
1370 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -05001371 size_t new_len;
1372 struct lpfc_sli *psli = &phba->sli;
1373 uint16_t iotag;
dea31012005-04-17 16:05:31 -05001374
James Smart2e0fef82007-06-17 19:56:36 -05001375 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001376 iotag = psli->last_iotag;
1377 if(++iotag < psli->iocbq_lookup_len) {
1378 psli->last_iotag = iotag;
1379 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001380 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001381 iocbq->iotag = iotag;
1382 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -05001383 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -05001384 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1385 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -05001386 spin_unlock_irq(&phba->hbalock);
1387 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -05001388 GFP_KERNEL);
1389 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -05001390 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001391 old_arr = psli->iocbq_lookup;
1392 if (new_len <= psli->iocbq_lookup_len) {
1393 /* highly unprobable case */
1394 kfree(new_arr);
1395 iotag = psli->last_iotag;
1396 if(++iotag < psli->iocbq_lookup_len) {
1397 psli->last_iotag = iotag;
1398 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001399 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001400 iocbq->iotag = iotag;
1401 return iotag;
1402 }
James Smart2e0fef82007-06-17 19:56:36 -05001403 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001404 return 0;
1405 }
1406 if (psli->iocbq_lookup)
1407 memcpy(new_arr, old_arr,
1408 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001409 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001410 psli->iocbq_lookup = new_arr;
1411 psli->iocbq_lookup_len = new_len;
1412 psli->last_iotag = iotag;
1413 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001414 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001415 iocbq->iotag = iotag;
1416 kfree(old_arr);
1417 return iotag;
1418 }
James Smart8f6d98d2006-08-01 07:34:00 -04001419 } else
James Smart2e0fef82007-06-17 19:56:36 -05001420 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001421
James Smartbc739052010-08-04 16:11:18 -04001422 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001423 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1424 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001425
James Bottomley604a3e32005-10-29 10:28:33 -05001426 return 0;
dea31012005-04-17 16:05:31 -05001427}
1428
James Smarte59058c2008-08-24 21:49:00 -04001429/**
James Smart3621a712009-04-06 18:47:14 -04001430 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001431 * @phba: Pointer to HBA context object.
1432 * @pring: Pointer to driver SLI ring object.
1433 * @iocb: Pointer to iocb slot in the ring.
1434 * @nextiocb: Pointer to driver iocb object which need to be
1435 * posted to firmware.
1436 *
1437 * This function is called with hbalock held to post a new iocb to
1438 * the firmware. This function copies the new iocb to ring iocb slot and
1439 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1440 * a completion call back for this iocb else the function will free the
1441 * iocb object.
1442 **/
dea31012005-04-17 16:05:31 -05001443static void
1444lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1445 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1446{
1447 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001448 * Set up an iotag
dea31012005-04-17 16:05:31 -05001449 */
James Bottomley604a3e32005-10-29 10:28:33 -05001450 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001451
James Smarte2a0a9d2008-12-04 22:40:02 -05001452
James Smarta58cbd52007-08-02 11:09:43 -04001453 if (pring->ringno == LPFC_ELS_RING) {
1454 lpfc_debugfs_slow_ring_trc(phba,
1455 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1456 *(((uint32_t *) &nextiocb->iocb) + 4),
1457 *(((uint32_t *) &nextiocb->iocb) + 6),
1458 *(((uint32_t *) &nextiocb->iocb) + 7));
1459 }
1460
dea31012005-04-17 16:05:31 -05001461 /*
1462 * Issue iocb command to adapter
1463 */
James Smart92d7f7b2007-06-17 19:56:38 -05001464 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001465 wmb();
1466 pring->stats.iocb_cmd++;
1467
1468 /*
1469 * If there is no completion routine to call, we can release the
1470 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1471 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1472 */
1473 if (nextiocb->iocb_cmpl)
1474 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001475 else
James Smart2e0fef82007-06-17 19:56:36 -05001476 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001477
1478 /*
1479 * Let the HBA know what IOCB slot will be the next one the
1480 * driver will put a command into.
1481 */
1482 pring->cmdidx = pring->next_cmdidx;
James Smarted957682007-06-17 19:56:37 -05001483 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001484}
1485
James Smarte59058c2008-08-24 21:49:00 -04001486/**
James Smart3621a712009-04-06 18:47:14 -04001487 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001488 * @phba: Pointer to HBA context object.
1489 * @pring: Pointer to driver SLI ring object.
1490 *
1491 * The caller is not required to hold any lock for calling this function.
1492 * This function updates the chip attention bits for the ring to inform firmware
1493 * that there are pending work to be done for this ring and requests an
1494 * interrupt when there is space available in the ring. This function is
1495 * called when the driver is unable to post more iocbs to the ring due
1496 * to unavailability of space in the ring.
1497 **/
dea31012005-04-17 16:05:31 -05001498static void
James Smart2e0fef82007-06-17 19:56:36 -05001499lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001500{
1501 int ringno = pring->ringno;
1502
1503 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1504
1505 wmb();
1506
1507 /*
1508 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1509 * The HBA will tell us when an IOCB entry is available.
1510 */
1511 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1512 readl(phba->CAregaddr); /* flush */
1513
1514 pring->stats.iocb_cmd_full++;
1515}
1516
James Smarte59058c2008-08-24 21:49:00 -04001517/**
James Smart3621a712009-04-06 18:47:14 -04001518 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001519 * @phba: Pointer to HBA context object.
1520 * @pring: Pointer to driver SLI ring object.
1521 *
1522 * This function updates the chip attention register bit for the
1523 * given ring to inform HBA that there is more work to be done
1524 * in this ring. The caller is not required to hold any lock.
1525 **/
dea31012005-04-17 16:05:31 -05001526static void
James Smart2e0fef82007-06-17 19:56:36 -05001527lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001528{
1529 int ringno = pring->ringno;
1530
1531 /*
1532 * Tell the HBA that there is work to do in this ring.
1533 */
James Smart34b02dc2008-08-24 21:49:55 -04001534 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1535 wmb();
1536 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1537 readl(phba->CAregaddr); /* flush */
1538 }
dea31012005-04-17 16:05:31 -05001539}
1540
James Smarte59058c2008-08-24 21:49:00 -04001541/**
James Smart3621a712009-04-06 18:47:14 -04001542 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001543 * @phba: Pointer to HBA context object.
1544 * @pring: Pointer to driver SLI ring object.
1545 *
1546 * This function is called with hbalock held to post pending iocbs
1547 * in the txq to the firmware. This function is called when driver
1548 * detects space available in the ring.
1549 **/
dea31012005-04-17 16:05:31 -05001550static void
James Smart2e0fef82007-06-17 19:56:36 -05001551lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001552{
1553 IOCB_t *iocb;
1554 struct lpfc_iocbq *nextiocb;
1555
1556 /*
1557 * Check to see if:
1558 * (a) there is anything on the txq to send
1559 * (b) link is up
1560 * (c) link attention events can be processed (fcp ring only)
1561 * (d) IOCB processing is not blocked by the outstanding mbox command.
1562 */
1563 if (pring->txq_cnt &&
James Smart2e0fef82007-06-17 19:56:36 -05001564 lpfc_is_link_up(phba) &&
dea31012005-04-17 16:05:31 -05001565 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001566 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001567
1568 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1569 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1570 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1571
1572 if (iocb)
1573 lpfc_sli_update_ring(phba, pring);
1574 else
1575 lpfc_sli_update_full_ring(phba, pring);
1576 }
1577
1578 return;
1579}
1580
James Smarte59058c2008-08-24 21:49:00 -04001581/**
James Smart3621a712009-04-06 18:47:14 -04001582 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001583 * @phba: Pointer to HBA context object.
1584 * @hbqno: HBQ number.
1585 *
1586 * This function is called with hbalock held to get the next
1587 * available slot for the given HBQ. If there is free slot
1588 * available for the HBQ it will return pointer to the next available
1589 * HBQ entry else it will return NULL.
1590 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001591static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001592lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1593{
1594 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1595
1596 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1597 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1598 hbqp->next_hbqPutIdx = 0;
1599
1600 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001601 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001602 uint32_t getidx = le32_to_cpu(raw_index);
1603
1604 hbqp->local_hbqGetIdx = getidx;
1605
1606 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1607 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001608 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001609 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001610 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001611 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001612 hbqp->entry_count);
1613
1614 phba->link_state = LPFC_HBA_ERROR;
1615 return NULL;
1616 }
1617
1618 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1619 return NULL;
1620 }
1621
James Smart51ef4c22007-08-02 11:10:31 -04001622 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1623 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001624}
1625
James Smarte59058c2008-08-24 21:49:00 -04001626/**
James Smart3621a712009-04-06 18:47:14 -04001627 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001628 * @phba: Pointer to HBA context object.
1629 *
1630 * This function is called with no lock held to free all the
1631 * hbq buffers while uninitializing the SLI interface. It also
1632 * frees the HBQ buffers returned by the firmware but not yet
1633 * processed by the upper layers.
1634 **/
James Smarted957682007-06-17 19:56:37 -05001635void
1636lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1637{
James Smart92d7f7b2007-06-17 19:56:38 -05001638 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1639 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001640 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001641 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001642 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001643
James Smart51ef4c22007-08-02 11:10:31 -04001644 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001645 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001646 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001647 for (i = 0; i < hbq_count; ++i) {
1648 list_for_each_entry_safe(dmabuf, next_dmabuf,
1649 &phba->hbqs[i].hbq_buffer_list, list) {
1650 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1651 list_del(&hbq_buf->dbuf.list);
1652 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1653 }
James Smarta8adb832007-10-27 13:37:53 -04001654 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001655 }
James Smart3163f722008-02-08 18:50:25 -05001656 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001657 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1658 list) {
James Smart3163f722008-02-08 18:50:25 -05001659 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1660 list_del(&hbq_buf->dbuf.list);
1661 if (hbq_buf->tag == -1) {
1662 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1663 (phba, hbq_buf);
1664 } else {
1665 hbqno = hbq_buf->tag >> 16;
1666 if (hbqno >= LPFC_MAX_HBQS)
1667 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1668 (phba, hbq_buf);
1669 else
1670 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1671 hbq_buf);
1672 }
1673 }
1674
1675 /* Mark the HBQs not in use */
1676 phba->hbq_in_use = 0;
1677 spin_unlock_irqrestore(&phba->hbalock, flags);
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_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001682 * @phba: Pointer to HBA context object.
1683 * @hbqno: HBQ number.
1684 * @hbq_buf: Pointer to HBQ buffer.
1685 *
1686 * This function is called with the hbalock held to post a
1687 * hbq buffer to the firmware. If the function finds an empty
1688 * slot in the HBQ, it will post the buffer. The function will return
1689 * pointer to the hbq entry if it successfully post the buffer
1690 * else it will return NULL.
1691 **/
James Smart3772a992009-05-22 14:50:54 -04001692static int
James Smarted957682007-06-17 19:56:37 -05001693lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001694 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001695{
James Smart3772a992009-05-22 14:50:54 -04001696 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1697}
1698
1699/**
1700 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1701 * @phba: Pointer to HBA context object.
1702 * @hbqno: HBQ number.
1703 * @hbq_buf: Pointer to HBQ buffer.
1704 *
1705 * This function is called with the hbalock held to post a hbq buffer to the
1706 * firmware. If the function finds an empty slot in the HBQ, it will post the
1707 * buffer and place it on the hbq_buffer_list. The function will return zero if
1708 * it successfully post the buffer else it will return an error.
1709 **/
1710static int
1711lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1712 struct hbq_dmabuf *hbq_buf)
1713{
James Smarted957682007-06-17 19:56:37 -05001714 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001715 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001716
1717 /* Get next HBQ entry slot to use */
1718 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1719 if (hbqe) {
1720 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1721
James Smart92d7f7b2007-06-17 19:56:38 -05001722 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1723 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001724 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001725 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001726 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1727 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1728 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001729 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1730 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001731 /* flush */
James Smarted957682007-06-17 19:56:37 -05001732 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001733 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001734 return 0;
1735 } else
1736 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001737}
1738
James Smart4f774512009-05-22 14:52:35 -04001739/**
1740 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1741 * @phba: Pointer to HBA context object.
1742 * @hbqno: HBQ number.
1743 * @hbq_buf: Pointer to HBQ buffer.
1744 *
1745 * This function is called with the hbalock held to post an RQE to the SLI4
1746 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1747 * the hbq_buffer_list and return zero, otherwise it will return an error.
1748 **/
1749static int
1750lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1751 struct hbq_dmabuf *hbq_buf)
1752{
1753 int rc;
1754 struct lpfc_rqe hrqe;
1755 struct lpfc_rqe drqe;
1756
1757 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1758 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1759 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1760 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1761 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1762 &hrqe, &drqe);
1763 if (rc < 0)
1764 return rc;
1765 hbq_buf->tag = rc;
1766 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1767 return 0;
1768}
1769
James Smarte59058c2008-08-24 21:49:00 -04001770/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001771static struct lpfc_hbq_init lpfc_els_hbq = {
1772 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001773 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001774 .mask_count = 0,
1775 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001776 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001777 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001778 .init_count = 40,
1779 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001780};
James Smarted957682007-06-17 19:56:37 -05001781
James Smarte59058c2008-08-24 21:49:00 -04001782/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001783static struct lpfc_hbq_init lpfc_extra_hbq = {
1784 .rn = 1,
1785 .entry_count = 200,
1786 .mask_count = 0,
1787 .profile = 0,
1788 .ring_mask = (1 << LPFC_EXTRA_RING),
1789 .buffer_count = 0,
1790 .init_count = 0,
1791 .add_count = 5,
1792};
1793
James Smarte59058c2008-08-24 21:49:00 -04001794/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001795struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001796 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001797 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001798};
1799
James Smarte59058c2008-08-24 21:49:00 -04001800/**
James Smart3621a712009-04-06 18:47:14 -04001801 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001802 * @phba: Pointer to HBA context object.
1803 * @hbqno: HBQ number.
1804 * @count: Number of HBQ buffers to be posted.
1805 *
James Smartd7c255b2008-08-24 21:50:00 -04001806 * This function is called with no lock held to post more hbq buffers to the
1807 * given HBQ. The function returns the number of HBQ buffers successfully
1808 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001809 **/
James Smart311464e2007-08-02 11:10:37 -04001810static int
James Smart92d7f7b2007-06-17 19:56:38 -05001811lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1812{
James Smartd7c255b2008-08-24 21:50:00 -04001813 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001814 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001815 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001816 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001817 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001818 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001819
James Smartd7c255b2008-08-24 21:50:00 -04001820 if ((phba->hbqs[hbqno].buffer_count + count) >
1821 lpfc_hbq_defs[hbqno]->entry_count)
1822 count = lpfc_hbq_defs[hbqno]->entry_count -
1823 phba->hbqs[hbqno].buffer_count;
1824 if (!count)
1825 return 0;
1826 /* Allocate HBQ entries */
1827 for (i = 0; i < count; i++) {
1828 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1829 if (!hbq_buffer)
1830 break;
1831 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1832 }
James Smart3163f722008-02-08 18:50:25 -05001833 /* Check whether HBQ is still in use */
1834 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001835 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001836 goto err;
1837 while (!list_empty(&hbq_buf_list)) {
1838 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1839 dbuf.list);
1840 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1841 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001842 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001843 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001844 posted++;
1845 } else
James Smart51ef4c22007-08-02 11:10:31 -04001846 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001847 }
James Smart3163f722008-02-08 18:50:25 -05001848 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001849 return posted;
1850err:
1851 spin_unlock_irqrestore(&phba->hbalock, flags);
1852 while (!list_empty(&hbq_buf_list)) {
1853 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1854 dbuf.list);
1855 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1856 }
James Smart92d7f7b2007-06-17 19:56:38 -05001857 return 0;
James Smarted957682007-06-17 19:56:37 -05001858}
1859
James Smarte59058c2008-08-24 21:49:00 -04001860/**
James Smart3621a712009-04-06 18:47:14 -04001861 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001862 * @phba: Pointer to HBA context object.
1863 * @qno: HBQ number.
1864 *
1865 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001866 * is called with no lock held. The function returns the number of HBQ entries
1867 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001868 **/
James Smarted957682007-06-17 19:56:37 -05001869int
James Smart92d7f7b2007-06-17 19:56:38 -05001870lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001871{
James Smartdef9c7a2009-12-21 17:02:28 -05001872 if (phba->sli_rev == LPFC_SLI_REV4)
1873 return 0;
1874 else
1875 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1876 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001877}
1878
James Smarte59058c2008-08-24 21:49:00 -04001879/**
James Smart3621a712009-04-06 18:47:14 -04001880 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001881 * @phba: Pointer to HBA context object.
1882 * @qno: HBQ queue number.
1883 *
1884 * This function is called from SLI initialization code path with
1885 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001886 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001887 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001888static int
James Smart92d7f7b2007-06-17 19:56:38 -05001889lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001890{
James Smartdef9c7a2009-12-21 17:02:28 -05001891 if (phba->sli_rev == LPFC_SLI_REV4)
1892 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
James Smart73d91e52011-10-10 21:32:10 -04001893 lpfc_hbq_defs[qno]->entry_count);
James Smartdef9c7a2009-12-21 17:02:28 -05001894 else
1895 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1896 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05001897}
1898
James Smarte59058c2008-08-24 21:49:00 -04001899/**
James Smart3772a992009-05-22 14:50:54 -04001900 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1901 * @phba: Pointer to HBA context object.
1902 * @hbqno: HBQ number.
1903 *
1904 * This function removes the first hbq buffer on an hbq list and returns a
1905 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1906 **/
1907static struct hbq_dmabuf *
1908lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1909{
1910 struct lpfc_dmabuf *d_buf;
1911
1912 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1913 if (!d_buf)
1914 return NULL;
1915 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1916}
1917
1918/**
James Smart3621a712009-04-06 18:47:14 -04001919 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001920 * @phba: Pointer to HBA context object.
1921 * @tag: Tag of the hbq buffer.
1922 *
1923 * This function is called with hbalock held. This function searches
1924 * for the hbq buffer associated with the given tag in the hbq buffer
1925 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1926 * it returns NULL.
1927 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001928static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001929lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1930{
James Smart92d7f7b2007-06-17 19:56:38 -05001931 struct lpfc_dmabuf *d_buf;
1932 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001933 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001934
James Smart51ef4c22007-08-02 11:10:31 -04001935 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001936 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001937 return NULL;
1938
James Smart3772a992009-05-22 14:50:54 -04001939 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001940 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001941 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001942 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001943 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001944 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001945 }
1946 }
James Smart3772a992009-05-22 14:50:54 -04001947 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001948 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001949 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04001950 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05001951 return NULL;
James Smarted957682007-06-17 19:56:37 -05001952}
1953
James Smarte59058c2008-08-24 21:49:00 -04001954/**
James Smart3621a712009-04-06 18:47:14 -04001955 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001956 * @phba: Pointer to HBA context object.
1957 * @hbq_buffer: Pointer to HBQ buffer.
1958 *
1959 * This function is called with hbalock. This function gives back
1960 * the hbq buffer to firmware. If the HBQ does not have space to
1961 * post the buffer, it will free the buffer.
1962 **/
James Smarted957682007-06-17 19:56:37 -05001963void
James Smart51ef4c22007-08-02 11:10:31 -04001964lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05001965{
1966 uint32_t hbqno;
1967
James Smart51ef4c22007-08-02 11:10:31 -04001968 if (hbq_buffer) {
1969 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04001970 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04001971 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05001972 }
1973}
1974
James Smarte59058c2008-08-24 21:49:00 -04001975/**
James Smart3621a712009-04-06 18:47:14 -04001976 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04001977 * @mbxCommand: mailbox command code.
1978 *
1979 * This function is called by the mailbox event handler function to verify
1980 * that the completed mailbox command is a legitimate mailbox command. If the
1981 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1982 * and the mailbox event handler will take the HBA offline.
1983 **/
dea31012005-04-17 16:05:31 -05001984static int
1985lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1986{
1987 uint8_t ret;
1988
1989 switch (mbxCommand) {
1990 case MBX_LOAD_SM:
1991 case MBX_READ_NV:
1992 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04001993 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05001994 case MBX_RUN_BIU_DIAG:
1995 case MBX_INIT_LINK:
1996 case MBX_DOWN_LINK:
1997 case MBX_CONFIG_LINK:
1998 case MBX_CONFIG_RING:
1999 case MBX_RESET_RING:
2000 case MBX_READ_CONFIG:
2001 case MBX_READ_RCONFIG:
2002 case MBX_READ_SPARM:
2003 case MBX_READ_STATUS:
2004 case MBX_READ_RPI:
2005 case MBX_READ_XRI:
2006 case MBX_READ_REV:
2007 case MBX_READ_LNK_STAT:
2008 case MBX_REG_LOGIN:
2009 case MBX_UNREG_LOGIN:
dea31012005-04-17 16:05:31 -05002010 case MBX_CLEAR_LA:
2011 case MBX_DUMP_MEMORY:
2012 case MBX_DUMP_CONTEXT:
2013 case MBX_RUN_DIAGS:
2014 case MBX_RESTART:
2015 case MBX_UPDATE_CFG:
2016 case MBX_DOWN_LOAD:
2017 case MBX_DEL_LD_ENTRY:
2018 case MBX_RUN_PROGRAM:
2019 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05002020 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05002021 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002022 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05002023 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002024 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05002025 case MBX_LOAD_AREA:
2026 case MBX_RUN_BIU_DIAG64:
2027 case MBX_CONFIG_PORT:
2028 case MBX_READ_SPARM64:
2029 case MBX_READ_RPI64:
2030 case MBX_REG_LOGIN64:
James Smart76a95d72010-11-20 23:11:48 -05002031 case MBX_READ_TOPOLOGY:
James Smart09372822008-01-11 01:52:54 -05002032 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05002033 case MBX_SET_DEBUG:
2034 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04002035 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05002036 case MBX_REG_VPI:
2037 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05002038 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04002039 case MBX_PORT_CAPABILITIES:
2040 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04002041 case MBX_SLI4_CONFIG:
2042 case MBX_SLI4_REQ_FTRS:
2043 case MBX_REG_FCFI:
2044 case MBX_UNREG_FCFI:
2045 case MBX_REG_VFI:
2046 case MBX_UNREG_VFI:
2047 case MBX_INIT_VPI:
2048 case MBX_INIT_VFI:
2049 case MBX_RESUME_RPI:
James Smartc7495932010-04-06 15:05:28 -04002050 case MBX_READ_EVENT_LOG_STATUS:
2051 case MBX_READ_EVENT_LOG:
James Smartdcf2a4e2010-09-29 11:18:53 -04002052 case MBX_SECURITY_MGMT:
2053 case MBX_AUTH_PORT:
dea31012005-04-17 16:05:31 -05002054 ret = mbxCommand;
2055 break;
2056 default:
2057 ret = MBX_SHUTDOWN;
2058 break;
2059 }
James Smart2e0fef82007-06-17 19:56:36 -05002060 return ret;
dea31012005-04-17 16:05:31 -05002061}
James Smarte59058c2008-08-24 21:49:00 -04002062
2063/**
James Smart3621a712009-04-06 18:47:14 -04002064 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002065 * @phba: Pointer to HBA context object.
2066 * @pmboxq: Pointer to mailbox command.
2067 *
2068 * This is completion handler function for mailbox commands issued from
2069 * lpfc_sli_issue_mbox_wait function. This function is called by the
2070 * mailbox event handler function with no lock held. This function
2071 * will wake up thread waiting on the wait queue pointed by context1
2072 * of the mailbox.
2073 **/
James Smart04c68492009-05-22 14:52:52 -04002074void
James Smart2e0fef82007-06-17 19:56:36 -05002075lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05002076{
2077 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05002078 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05002079
2080 /*
2081 * If pdone_q is empty, the driver thread gave up waiting and
2082 * continued running.
2083 */
James Smart7054a602007-04-25 09:52:34 -04002084 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05002085 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002086 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2087 if (pdone_q)
2088 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05002089 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002090 return;
2091}
2092
James Smarte59058c2008-08-24 21:49:00 -04002093
2094/**
James Smart3621a712009-04-06 18:47:14 -04002095 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002096 * @phba: Pointer to HBA context object.
2097 * @pmb: Pointer to mailbox object.
2098 *
2099 * This function is the default mailbox completion handler. It
2100 * frees the memory resources associated with the completed mailbox
2101 * command. If the completed command is a REG_LOGIN mailbox command,
2102 * this function will issue a UREG_LOGIN to re-claim the RPI.
2103 **/
dea31012005-04-17 16:05:31 -05002104void
James Smart2e0fef82007-06-17 19:56:36 -05002105lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05002106{
James Smartd439d282010-09-29 11:18:45 -04002107 struct lpfc_vport *vport = pmb->vport;
dea31012005-04-17 16:05:31 -05002108 struct lpfc_dmabuf *mp;
James Smartd439d282010-09-29 11:18:45 -04002109 struct lpfc_nodelist *ndlp;
James Smart5af5eee2010-10-22 11:06:38 -04002110 struct Scsi_Host *shost;
James Smart04c68492009-05-22 14:52:52 -04002111 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04002112 int rc;
2113
dea31012005-04-17 16:05:31 -05002114 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04002115
dea31012005-04-17 16:05:31 -05002116 if (mp) {
2117 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2118 kfree(mp);
2119 }
James Smart7054a602007-04-25 09:52:34 -04002120
2121 /*
2122 * If a REG_LOGIN succeeded after node is destroyed or node
2123 * is in re-discovery driver need to cleanup the RPI.
2124 */
James Smart2e0fef82007-06-17 19:56:36 -05002125 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04002126 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2127 !pmb->u.mb.mbxStatus) {
2128 rpi = pmb->u.mb.un.varWords[0];
James Smart6d368e52011-05-24 11:44:12 -04002129 vpi = pmb->u.mb.un.varRegLogin.vpi;
James Smart04c68492009-05-22 14:52:52 -04002130 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002131 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04002132 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2133 if (rc != MBX_NOT_FINISHED)
2134 return;
2135 }
2136
James Smart695a8142010-01-26 23:08:03 -05002137 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2138 !(phba->pport->load_flag & FC_UNLOADING) &&
2139 !pmb->u.mb.mbxStatus) {
James Smart5af5eee2010-10-22 11:06:38 -04002140 shost = lpfc_shost_from_vport(vport);
2141 spin_lock_irq(shost->host_lock);
2142 vport->vpi_state |= LPFC_VPI_REGISTERED;
2143 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2144 spin_unlock_irq(shost->host_lock);
James Smart695a8142010-01-26 23:08:03 -05002145 }
2146
James Smartd439d282010-09-29 11:18:45 -04002147 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2148 ndlp = (struct lpfc_nodelist *)pmb->context2;
2149 lpfc_nlp_put(ndlp);
2150 pmb->context2 = NULL;
2151 }
2152
James Smartdcf2a4e2010-09-29 11:18:53 -04002153 /* Check security permission status on INIT_LINK mailbox command */
2154 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2155 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2156 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2157 "2860 SLI authentication is required "
2158 "for INIT_LINK but has not done yet\n");
2159
James Smart04c68492009-05-22 14:52:52 -04002160 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2161 lpfc_sli4_mbox_cmd_free(phba, pmb);
2162 else
2163 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05002164}
2165
James Smarte59058c2008-08-24 21:49:00 -04002166/**
James Smart3621a712009-04-06 18:47:14 -04002167 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04002168 * @phba: Pointer to HBA context object.
2169 *
2170 * This function is called with no lock held. This function processes all
2171 * the completed mailbox commands and gives it to upper layers. The interrupt
2172 * service routine processes mailbox completion interrupt and adds completed
2173 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2174 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2175 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2176 * function returns the mailbox commands to the upper layer by calling the
2177 * completion handler function of each mailbox.
2178 **/
dea31012005-04-17 16:05:31 -05002179int
James Smart2e0fef82007-06-17 19:56:36 -05002180lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05002181{
James Smart92d7f7b2007-06-17 19:56:38 -05002182 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05002183 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05002184 int rc;
2185 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05002186
2187 phba->sli.slistat.mbox_event++;
2188
James Smart92d7f7b2007-06-17 19:56:38 -05002189 /* Get all completed mailboxe buffers into the cmplq */
2190 spin_lock_irq(&phba->hbalock);
2191 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2192 spin_unlock_irq(&phba->hbalock);
2193
dea31012005-04-17 16:05:31 -05002194 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05002195 do {
2196 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2197 if (pmb == NULL)
2198 break;
2199
James Smart04c68492009-05-22 14:52:52 -04002200 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05002201
James Smart858c9f62007-06-17 19:56:39 -05002202 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2203 if (pmb->vport) {
2204 lpfc_debugfs_disc_trc(pmb->vport,
2205 LPFC_DISC_TRC_MBOX_VPORT,
2206 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2207 (uint32_t)pmbox->mbxCommand,
2208 pmbox->un.varWords[0],
2209 pmbox->un.varWords[1]);
2210 }
2211 else {
2212 lpfc_debugfs_disc_trc(phba->pport,
2213 LPFC_DISC_TRC_MBOX,
2214 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2215 (uint32_t)pmbox->mbxCommand,
2216 pmbox->un.varWords[0],
2217 pmbox->un.varWords[1]);
2218 }
2219 }
2220
dea31012005-04-17 16:05:31 -05002221 /*
2222 * It is a fatal error if unknown mbox command completion.
2223 */
2224 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2225 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02002226 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05002227 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002228 "(%d):0323 Unknown Mailbox command "
James Smarta183a152011-10-10 21:32:43 -04002229 "x%x (x%x/x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002230 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04002231 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002232 lpfc_sli_config_mbox_subsys_get(phba,
2233 pmb),
2234 lpfc_sli_config_mbox_opcode_get(phba,
2235 pmb));
James Smart2e0fef82007-06-17 19:56:36 -05002236 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05002237 phba->work_hs = HS_FFER3;
2238 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002239 continue;
dea31012005-04-17 16:05:31 -05002240 }
2241
dea31012005-04-17 16:05:31 -05002242 if (pmbox->mbxStatus) {
2243 phba->sli.slistat.mbox_stat_err++;
2244 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2245 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05002246 lpfc_printf_log(phba, KERN_INFO,
James Smarta183a152011-10-10 21:32:43 -04002247 LOG_MBOX | LOG_SLI,
2248 "(%d):0305 Mbox cmd cmpl "
2249 "error - RETRYing Data: x%x "
2250 "(x%x/x%x) x%x x%x x%x\n",
2251 pmb->vport ? pmb->vport->vpi : 0,
2252 pmbox->mbxCommand,
2253 lpfc_sli_config_mbox_subsys_get(phba,
2254 pmb),
2255 lpfc_sli_config_mbox_opcode_get(phba,
2256 pmb),
2257 pmbox->mbxStatus,
2258 pmbox->un.varWords[0],
2259 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05002260 pmbox->mbxStatus = 0;
2261 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05002262 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04002263 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05002264 continue;
dea31012005-04-17 16:05:31 -05002265 }
2266 }
2267
2268 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05002269 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04002270 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
dea31012005-04-17 16:05:31 -05002271 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002272 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05002273 pmbox->mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04002274 lpfc_sli_config_mbox_subsys_get(phba, pmb),
2275 lpfc_sli_config_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05002276 pmb->mbox_cmpl,
2277 *((uint32_t *) pmbox),
2278 pmbox->un.varWords[0],
2279 pmbox->un.varWords[1],
2280 pmbox->un.varWords[2],
2281 pmbox->un.varWords[3],
2282 pmbox->un.varWords[4],
2283 pmbox->un.varWords[5],
2284 pmbox->un.varWords[6],
2285 pmbox->un.varWords[7]);
2286
James Smart92d7f7b2007-06-17 19:56:38 -05002287 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05002288 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002289 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05002290 return 0;
dea31012005-04-17 16:05:31 -05002291}
James Smart92d7f7b2007-06-17 19:56:38 -05002292
James Smarte59058c2008-08-24 21:49:00 -04002293/**
James Smart3621a712009-04-06 18:47:14 -04002294 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04002295 * @phba: Pointer to HBA context object.
2296 * @pring: Pointer to driver SLI ring object.
2297 * @tag: buffer tag.
2298 *
2299 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2300 * is set in the tag the buffer is posted for a particular exchange,
2301 * the function will return the buffer without replacing the buffer.
2302 * If the buffer is for unsolicited ELS or CT traffic, this function
2303 * returns the buffer and also posts another buffer to the firmware.
2304 **/
James Smart76bb24e2007-10-27 13:38:00 -04002305static struct lpfc_dmabuf *
2306lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05002307 struct lpfc_sli_ring *pring,
2308 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04002309{
James Smart9f1e1b52008-12-04 22:39:40 -05002310 struct hbq_dmabuf *hbq_entry;
2311
James Smart76bb24e2007-10-27 13:38:00 -04002312 if (tag & QUE_BUFTAG_BIT)
2313 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05002314 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2315 if (!hbq_entry)
2316 return NULL;
2317 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04002318}
James Smart57127f12007-10-27 13:37:05 -04002319
James Smart3772a992009-05-22 14:50:54 -04002320/**
2321 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2322 * @phba: Pointer to HBA context object.
2323 * @pring: Pointer to driver SLI ring object.
2324 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2325 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2326 * @fch_type: the type for the first frame of the sequence.
2327 *
2328 * This function is called with no lock held. This function uses the r_ctl and
2329 * type of the received sequence to find the correct callback function to call
2330 * to process the sequence.
2331 **/
2332static int
2333lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2334 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2335 uint32_t fch_type)
2336{
2337 int i;
2338
2339 /* unSolicited Responses */
2340 if (pring->prt[0].profile) {
2341 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2342 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2343 saveq);
2344 return 1;
2345 }
2346 /* We must search, based on rctl / type
2347 for the right routine */
2348 for (i = 0; i < pring->num_mask; i++) {
2349 if ((pring->prt[i].rctl == fch_r_ctl) &&
2350 (pring->prt[i].type == fch_type)) {
2351 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2352 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2353 (phba, pring, saveq);
2354 return 1;
2355 }
2356 }
2357 return 0;
2358}
James Smarte59058c2008-08-24 21:49:00 -04002359
2360/**
James Smart3621a712009-04-06 18:47:14 -04002361 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04002362 * @phba: Pointer to HBA context object.
2363 * @pring: Pointer to driver SLI ring object.
2364 * @saveq: Pointer to the unsolicited iocb.
2365 *
2366 * This function is called with no lock held by the ring event handler
2367 * when there is an unsolicited iocb posted to the response ring by the
2368 * firmware. This function gets the buffer associated with the iocbs
2369 * and calls the event handler for the ring. This function handles both
2370 * qring buffers and hbq buffers.
2371 * When the function returns 1 the caller can free the iocb object otherwise
2372 * upper layer functions will free the iocb objects.
2373 **/
dea31012005-04-17 16:05:31 -05002374static int
2375lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2376 struct lpfc_iocbq *saveq)
2377{
2378 IOCB_t * irsp;
2379 WORD5 * w5p;
2380 uint32_t Rctl, Type;
James Smart3772a992009-05-22 14:50:54 -04002381 uint32_t match;
James Smart76bb24e2007-10-27 13:38:00 -04002382 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05002383 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05002384
2385 match = 0;
2386 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04002387
2388 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2389 if (pring->lpfc_sli_rcv_async_status)
2390 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2391 else
2392 lpfc_printf_log(phba,
2393 KERN_WARNING,
2394 LOG_SLI,
2395 "0316 Ring %d handler: unexpected "
2396 "ASYNC_STATUS iocb received evt_code "
2397 "0x%x\n",
2398 pring->ringno,
2399 irsp->un.asyncstat.evt_code);
2400 return 1;
2401 }
2402
James Smart3163f722008-02-08 18:50:25 -05002403 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2404 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2405 if (irsp->ulpBdeCount > 0) {
2406 dmzbuf = lpfc_sli_get_buff(phba, pring,
2407 irsp->un.ulpWord[3]);
2408 lpfc_in_buf_free(phba, dmzbuf);
2409 }
2410
2411 if (irsp->ulpBdeCount > 1) {
2412 dmzbuf = lpfc_sli_get_buff(phba, pring,
2413 irsp->unsli3.sli3Words[3]);
2414 lpfc_in_buf_free(phba, dmzbuf);
2415 }
2416
2417 if (irsp->ulpBdeCount > 2) {
2418 dmzbuf = lpfc_sli_get_buff(phba, pring,
2419 irsp->unsli3.sli3Words[7]);
2420 lpfc_in_buf_free(phba, dmzbuf);
2421 }
2422
2423 return 1;
2424 }
2425
James Smart92d7f7b2007-06-17 19:56:38 -05002426 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002427 if (irsp->ulpBdeCount != 0) {
2428 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002429 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002430 if (!saveq->context2)
2431 lpfc_printf_log(phba,
2432 KERN_ERR,
2433 LOG_SLI,
2434 "0341 Ring %d Cannot find buffer for "
2435 "an unsolicited iocb. tag 0x%x\n",
2436 pring->ringno,
2437 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002438 }
2439 if (irsp->ulpBdeCount == 2) {
2440 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002441 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002442 if (!saveq->context3)
2443 lpfc_printf_log(phba,
2444 KERN_ERR,
2445 LOG_SLI,
2446 "0342 Ring %d Cannot find buffer for an"
2447 " unsolicited iocb. tag 0x%x\n",
2448 pring->ringno,
2449 irsp->unsli3.sli3Words[7]);
2450 }
2451 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002452 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002453 if (irsp->ulpBdeCount != 0) {
2454 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2455 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002456 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002457 lpfc_printf_log(phba,
2458 KERN_ERR,
2459 LOG_SLI,
2460 "0343 Ring %d Cannot find "
2461 "buffer for an unsolicited iocb"
2462 ". tag 0x%x\n", pring->ringno,
2463 irsp->un.ulpWord[3]);
2464 }
2465 if (irsp->ulpBdeCount == 2) {
2466 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2467 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002468 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002469 lpfc_printf_log(phba,
2470 KERN_ERR,
2471 LOG_SLI,
2472 "0344 Ring %d Cannot find "
2473 "buffer for an unsolicited "
2474 "iocb. tag 0x%x\n",
2475 pring->ringno,
2476 irsp->unsli3.sli3Words[7]);
2477 }
2478 }
James Smart92d7f7b2007-06-17 19:56:38 -05002479 }
James Smart9c2face2008-01-11 01:53:18 -05002480 if (irsp->ulpBdeCount != 0 &&
2481 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2482 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2483 int found = 0;
2484
2485 /* search continue save q for same XRI */
2486 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
James Smart7851fe22011-07-22 18:36:52 -04002487 if (iocbq->iocb.unsli3.rcvsli3.ox_id ==
2488 saveq->iocb.unsli3.rcvsli3.ox_id) {
James Smart9c2face2008-01-11 01:53:18 -05002489 list_add_tail(&saveq->list, &iocbq->list);
2490 found = 1;
2491 break;
2492 }
2493 }
2494 if (!found)
2495 list_add_tail(&saveq->clist,
2496 &pring->iocb_continue_saveq);
2497 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2498 list_del_init(&iocbq->clist);
2499 saveq = iocbq;
2500 irsp = &(saveq->iocb);
2501 } else
2502 return 0;
2503 }
2504 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2505 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2506 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002507 Rctl = FC_RCTL_ELS_REQ;
2508 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002509 } else {
2510 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2511 Rctl = w5p->hcsw.Rctl;
2512 Type = w5p->hcsw.Type;
2513
2514 /* Firmware Workaround */
2515 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2516 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2517 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002518 Rctl = FC_RCTL_ELS_REQ;
2519 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002520 w5p->hcsw.Rctl = Rctl;
2521 w5p->hcsw.Type = Type;
2522 }
2523 }
James Smart92d7f7b2007-06-17 19:56:38 -05002524
James Smart3772a992009-05-22 14:50:54 -04002525 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002526 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002527 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002528 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002529 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002530
James Smart92d7f7b2007-06-17 19:56:38 -05002531 return 1;
dea31012005-04-17 16:05:31 -05002532}
2533
James Smarte59058c2008-08-24 21:49:00 -04002534/**
James Smart3621a712009-04-06 18:47:14 -04002535 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002536 * @phba: Pointer to HBA context object.
2537 * @pring: Pointer to driver SLI ring object.
2538 * @prspiocb: Pointer to response iocb object.
2539 *
2540 * This function looks up the iocb_lookup table to get the command iocb
2541 * corresponding to the given response iocb using the iotag of the
2542 * response iocb. This function is called with the hbalock held.
2543 * This function returns the command iocb object if it finds the command
2544 * iocb else returns NULL.
2545 **/
dea31012005-04-17 16:05:31 -05002546static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002547lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2548 struct lpfc_sli_ring *pring,
2549 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002550{
dea31012005-04-17 16:05:31 -05002551 struct lpfc_iocbq *cmd_iocb = NULL;
2552 uint16_t iotag;
2553
James Bottomley604a3e32005-10-29 10:28:33 -05002554 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002555
James Bottomley604a3e32005-10-29 10:28:33 -05002556 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2557 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002558 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002559 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2560 pring->txcmplq_cnt--;
2561 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2562 }
James Bottomley604a3e32005-10-29 10:28:33 -05002563 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002564 }
2565
dea31012005-04-17 16:05:31 -05002566 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002567 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002568 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002569 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002570 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002571 return NULL;
2572}
2573
James Smarte59058c2008-08-24 21:49:00 -04002574/**
James Smart3772a992009-05-22 14:50:54 -04002575 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2576 * @phba: Pointer to HBA context object.
2577 * @pring: Pointer to driver SLI ring object.
2578 * @iotag: IOCB tag.
2579 *
2580 * This function looks up the iocb_lookup table to get the command iocb
2581 * corresponding to the given iotag. This function is called with the
2582 * hbalock held.
2583 * This function returns the command iocb object if it finds the command
2584 * iocb else returns NULL.
2585 **/
2586static struct lpfc_iocbq *
2587lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2588 struct lpfc_sli_ring *pring, uint16_t iotag)
2589{
2590 struct lpfc_iocbq *cmd_iocb;
2591
2592 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2593 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2594 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002595 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2596 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2597 pring->txcmplq_cnt--;
2598 }
James Smart3772a992009-05-22 14:50:54 -04002599 return cmd_iocb;
2600 }
2601
2602 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2603 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2604 iotag, phba->sli.last_iotag);
2605 return NULL;
2606}
2607
2608/**
James Smart3621a712009-04-06 18:47:14 -04002609 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002610 * @phba: Pointer to HBA context object.
2611 * @pring: Pointer to driver SLI ring object.
2612 * @saveq: Pointer to the response iocb to be processed.
2613 *
2614 * This function is called by the ring event handler for non-fcp
2615 * rings when there is a new response iocb in the response ring.
2616 * The caller is not required to hold any locks. This function
2617 * gets the command iocb associated with the response iocb and
2618 * calls the completion handler for the command iocb. If there
2619 * is no completion handler, the function will free the resources
2620 * associated with command iocb. If the response iocb is for
2621 * an already aborted command iocb, the status of the completion
2622 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2623 * This function always returns 1.
2624 **/
dea31012005-04-17 16:05:31 -05002625static int
James Smart2e0fef82007-06-17 19:56:36 -05002626lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002627 struct lpfc_iocbq *saveq)
2628{
James Smart2e0fef82007-06-17 19:56:36 -05002629 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002630 int rc = 1;
2631 unsigned long iflag;
2632
2633 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002634 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002635 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002636 spin_unlock_irqrestore(&phba->hbalock, iflag);
2637
dea31012005-04-17 16:05:31 -05002638 if (cmdiocbp) {
2639 if (cmdiocbp->iocb_cmpl) {
2640 /*
James Smartea2151b2008-09-07 11:52:10 -04002641 * If an ELS command failed send an event to mgmt
2642 * application.
2643 */
2644 if (saveq->iocb.ulpStatus &&
2645 (pring->ringno == LPFC_ELS_RING) &&
2646 (cmdiocbp->iocb.ulpCommand ==
2647 CMD_ELS_REQUEST64_CR))
2648 lpfc_send_els_failure_event(phba,
2649 cmdiocbp, saveq);
2650
2651 /*
dea31012005-04-17 16:05:31 -05002652 * Post all ELS completions to the worker thread.
2653 * All other are passed to the completion callback.
2654 */
2655 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002656 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2657 (cmdiocbp->iocb_flag &
2658 LPFC_DRIVER_ABORTED)) {
2659 spin_lock_irqsave(&phba->hbalock,
2660 iflag);
James Smart07951072007-04-25 09:51:38 -04002661 cmdiocbp->iocb_flag &=
2662 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002663 spin_unlock_irqrestore(&phba->hbalock,
2664 iflag);
James Smart07951072007-04-25 09:51:38 -04002665 saveq->iocb.ulpStatus =
2666 IOSTAT_LOCAL_REJECT;
2667 saveq->iocb.un.ulpWord[4] =
2668 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002669
2670 /* Firmware could still be in progress
2671 * of DMAing payload, so don't free data
2672 * buffer till after a hbeat.
2673 */
James Smart341af102010-01-26 23:07:37 -05002674 spin_lock_irqsave(&phba->hbalock,
2675 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002676 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002677 spin_unlock_irqrestore(&phba->hbalock,
2678 iflag);
2679 }
James Smart0f65ff62010-02-26 14:14:23 -05002680 if (phba->sli_rev == LPFC_SLI_REV4) {
2681 if (saveq->iocb_flag &
2682 LPFC_EXCHANGE_BUSY) {
2683 /* Set cmdiocb flag for the
2684 * exchange busy so sgl (xri)
2685 * will not be released until
2686 * the abort xri is received
2687 * from hba.
2688 */
2689 spin_lock_irqsave(
2690 &phba->hbalock, iflag);
2691 cmdiocbp->iocb_flag |=
2692 LPFC_EXCHANGE_BUSY;
2693 spin_unlock_irqrestore(
2694 &phba->hbalock, iflag);
2695 }
2696 if (cmdiocbp->iocb_flag &
2697 LPFC_DRIVER_ABORTED) {
2698 /*
2699 * Clear LPFC_DRIVER_ABORTED
2700 * bit in case it was driver
2701 * initiated abort.
2702 */
2703 spin_lock_irqsave(
2704 &phba->hbalock, iflag);
2705 cmdiocbp->iocb_flag &=
2706 ~LPFC_DRIVER_ABORTED;
2707 spin_unlock_irqrestore(
2708 &phba->hbalock, iflag);
2709 cmdiocbp->iocb.ulpStatus =
2710 IOSTAT_LOCAL_REJECT;
2711 cmdiocbp->iocb.un.ulpWord[4] =
2712 IOERR_ABORT_REQUESTED;
2713 /*
2714 * For SLI4, irsiocb contains
2715 * NO_XRI in sli_xritag, it
2716 * shall not affect releasing
2717 * sgl (xri) process.
2718 */
2719 saveq->iocb.ulpStatus =
2720 IOSTAT_LOCAL_REJECT;
2721 saveq->iocb.un.ulpWord[4] =
2722 IOERR_SLI_ABORTED;
2723 spin_lock_irqsave(
2724 &phba->hbalock, iflag);
2725 saveq->iocb_flag |=
2726 LPFC_DELAY_MEM_FREE;
2727 spin_unlock_irqrestore(
2728 &phba->hbalock, iflag);
2729 }
James Smart07951072007-04-25 09:51:38 -04002730 }
dea31012005-04-17 16:05:31 -05002731 }
James Smart2e0fef82007-06-17 19:56:36 -05002732 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002733 } else
2734 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002735 } else {
2736 /*
2737 * Unknown initiating command based on the response iotag.
2738 * This could be the case on the ELS ring because of
2739 * lpfc_els_abort().
2740 */
2741 if (pring->ringno != LPFC_ELS_RING) {
2742 /*
2743 * Ring <ringno> handler: unexpected completion IoTag
2744 * <IoTag>
2745 */
James Smarta257bf92009-04-06 18:48:10 -04002746 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002747 "0322 Ring %d handler: "
2748 "unexpected completion IoTag x%x "
2749 "Data: x%x x%x x%x x%x\n",
2750 pring->ringno,
2751 saveq->iocb.ulpIoTag,
2752 saveq->iocb.ulpStatus,
2753 saveq->iocb.un.ulpWord[4],
2754 saveq->iocb.ulpCommand,
2755 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002756 }
2757 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002758
dea31012005-04-17 16:05:31 -05002759 return rc;
2760}
2761
James Smarte59058c2008-08-24 21:49:00 -04002762/**
James Smart3621a712009-04-06 18:47:14 -04002763 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002764 * @phba: Pointer to HBA context object.
2765 * @pring: Pointer to driver SLI ring object.
2766 *
2767 * This function is called from the iocb ring event handlers when
2768 * put pointer is ahead of the get pointer for a ring. This function signal
2769 * an error attention condition to the worker thread and the worker
2770 * thread will transition the HBA to offline state.
2771 **/
James Smart2e0fef82007-06-17 19:56:36 -05002772static void
2773lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002774{
James Smart34b02dc2008-08-24 21:49:55 -04002775 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002776 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002777 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002778 * rsp ring <portRspMax>
2779 */
2780 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002781 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002782 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002783 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002784 pring->numRiocb);
2785
James Smart2e0fef82007-06-17 19:56:36 -05002786 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002787
2788 /*
2789 * All error attention handlers are posted to
2790 * worker thread
2791 */
2792 phba->work_ha |= HA_ERATT;
2793 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002794
James Smart5e9d9b82008-06-14 22:52:53 -04002795 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002796
2797 return;
2798}
2799
James Smarte59058c2008-08-24 21:49:00 -04002800/**
James Smart3621a712009-04-06 18:47:14 -04002801 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002802 * @ptr: Pointer to address of HBA context object.
2803 *
2804 * This function is invoked by the Error Attention polling timer when the
2805 * timer times out. It will check the SLI Error Attention register for
2806 * possible attention events. If so, it will post an Error Attention event
2807 * and wake up worker thread to process it. Otherwise, it will set up the
2808 * Error Attention polling timer for the next poll.
2809 **/
2810void lpfc_poll_eratt(unsigned long ptr)
2811{
2812 struct lpfc_hba *phba;
2813 uint32_t eratt = 0;
2814
2815 phba = (struct lpfc_hba *)ptr;
2816
2817 /* Check chip HA register for error event */
2818 eratt = lpfc_sli_check_eratt(phba);
2819
2820 if (eratt)
2821 /* Tell the worker thread there is work to do */
2822 lpfc_worker_wake_up(phba);
2823 else
2824 /* Restart the timer for next eratt poll */
2825 mod_timer(&phba->eratt_poll, jiffies +
2826 HZ * LPFC_ERATT_POLL_INTERVAL);
2827 return;
2828}
2829
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002830
James Smarte59058c2008-08-24 21:49:00 -04002831/**
James Smart3621a712009-04-06 18:47:14 -04002832 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002833 * @phba: Pointer to HBA context object.
2834 * @pring: Pointer to driver SLI ring object.
2835 * @mask: Host attention register mask for this ring.
2836 *
2837 * This function is called from the interrupt context when there is a ring
2838 * event for the fcp ring. The caller does not hold any lock.
2839 * The function processes each response iocb in the response ring until it
Lucas De Marchi25985ed2011-03-30 22:57:33 -03002840 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
James Smarte59058c2008-08-24 21:49:00 -04002841 * LE bit set. The function will call the completion handler of the command iocb
2842 * if the response iocb indicates a completion for a command iocb or it is
2843 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2844 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002845 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04002846 * to check it explicitly.
2847 */
2848int
James Smart2e0fef82007-06-17 19:56:36 -05002849lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2850 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002851{
James Smart34b02dc2008-08-24 21:49:55 -04002852 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002853 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002854 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002855 struct lpfc_iocbq *cmdiocbq = NULL;
2856 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002857 uint32_t status;
2858 uint32_t portRspPut, portRspMax;
2859 int rc = 1;
2860 lpfc_iocb_type type;
2861 unsigned long iflag;
2862 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002863
James Smart2e0fef82007-06-17 19:56:36 -05002864 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002865 pring->stats.iocb_event++;
2866
dea31012005-04-17 16:05:31 -05002867 /*
2868 * The next available response entry should never exceed the maximum
2869 * entries. If it does, treat it as an adapter hardware error.
2870 */
2871 portRspMax = pring->numRiocb;
2872 portRspPut = le32_to_cpu(pgp->rspPutInx);
2873 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002874 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002875 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002876 return 1;
2877 }
James Smart45ed1192009-10-02 15:17:02 -04002878 if (phba->fcp_ring_in_use) {
2879 spin_unlock_irqrestore(&phba->hbalock, iflag);
2880 return 1;
2881 } else
2882 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05002883
2884 rmb();
2885 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002886 /*
2887 * Fetch an entry off the ring and copy it into a local data
2888 * structure. The copy involves a byte-swap since the
2889 * network byte order and pci byte orders are different.
2890 */
James Smarted957682007-06-17 19:56:37 -05002891 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05002892 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002893
2894 if (++pring->rspidx >= portRspMax)
2895 pring->rspidx = 0;
2896
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002897 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2898 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05002899 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05002900 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002901 irsp = &rspiocbq.iocb;
2902
dea31012005-04-17 16:05:31 -05002903 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2904 pring->stats.iocb_rsp++;
2905 rsp_cmpl++;
2906
2907 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05002908 /*
2909 * If resource errors reported from HBA, reduce
2910 * queuedepths of the SCSI device.
2911 */
2912 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2913 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2914 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002915 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002916 spin_lock_irqsave(&phba->hbalock, iflag);
2917 }
2918
dea31012005-04-17 16:05:31 -05002919 /* Rsp ring <ringno> error: IOCB */
2920 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002921 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05002922 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002923 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05002924 irsp->un.ulpWord[0],
2925 irsp->un.ulpWord[1],
2926 irsp->un.ulpWord[2],
2927 irsp->un.ulpWord[3],
2928 irsp->un.ulpWord[4],
2929 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002930 *(uint32_t *)&irsp->un1,
2931 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05002932 }
2933
2934 switch (type) {
2935 case LPFC_ABORT_IOCB:
2936 case LPFC_SOL_IOCB:
2937 /*
2938 * Idle exchange closed via ABTS from port. No iocb
2939 * resources need to be recovered.
2940 */
2941 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002942 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002943 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04002944 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05002945 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04002946 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05002947 break;
2948 }
2949
James Bottomley604a3e32005-10-29 10:28:33 -05002950 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2951 &rspiocbq);
James Smart0f65ff62010-02-26 14:14:23 -05002952 if (unlikely(!cmdiocbq))
2953 break;
2954 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2955 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2956 if (cmdiocbq->iocb_cmpl) {
2957 spin_unlock_irqrestore(&phba->hbalock, iflag);
2958 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2959 &rspiocbq);
2960 spin_lock_irqsave(&phba->hbalock, iflag);
2961 }
dea31012005-04-17 16:05:31 -05002962 break;
James Smarta4bc3372006-12-02 13:34:16 -05002963 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05002964 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002965 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002966 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002967 break;
dea31012005-04-17 16:05:31 -05002968 default:
2969 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2970 char adaptermsg[LPFC_MAX_ADPTMSG];
2971 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2972 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2973 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002974 dev_warn(&((phba->pcidev)->dev),
2975 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05002976 phba->brd_no, adaptermsg);
2977 } else {
2978 /* Unknown IOCB command */
2979 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002980 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05002981 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002982 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05002983 irsp->ulpStatus,
2984 irsp->ulpIoTag,
2985 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05002986 }
2987 break;
2988 }
2989
2990 /*
2991 * The response IOCB has been processed. Update the ring
2992 * pointer in SLIM. If the port response put pointer has not
2993 * been updated, sync the pgp->rspPutInx and fetch the new port
2994 * response put pointer.
2995 */
James Smarted957682007-06-17 19:56:37 -05002996 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002997
2998 if (pring->rspidx == portRspPut)
2999 portRspPut = le32_to_cpu(pgp->rspPutInx);
3000 }
3001
3002 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
3003 pring->stats.iocb_rsp_full++;
3004 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3005 writel(status, phba->CAregaddr);
3006 readl(phba->CAregaddr);
3007 }
3008 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3009 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3010 pring->stats.iocb_cmd_empty++;
3011
3012 /* Force update of the local copy of cmdGetInx */
3013 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3014 lpfc_sli_resume_iocb(phba, pring);
3015
3016 if ((pring->lpfc_sli_cmd_available))
3017 (pring->lpfc_sli_cmd_available) (phba, pring);
3018
3019 }
3020
James Smart45ed1192009-10-02 15:17:02 -04003021 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003022 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003023 return rc;
3024}
3025
James Smarte59058c2008-08-24 21:49:00 -04003026/**
James Smart3772a992009-05-22 14:50:54 -04003027 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3028 * @phba: Pointer to HBA context object.
3029 * @pring: Pointer to driver SLI ring object.
3030 * @rspiocbp: Pointer to driver response IOCB object.
3031 *
3032 * This function is called from the worker thread when there is a slow-path
3033 * response IOCB to process. This function chains all the response iocbs until
3034 * seeing the iocb with the LE bit set. The function will call
3035 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3036 * completion of a command iocb. The function will call the
3037 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3038 * The function frees the resources or calls the completion handler if this
3039 * iocb is an abort completion. The function returns NULL when the response
3040 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3041 * this function shall chain the iocb on to the iocb_continueq and return the
3042 * response iocb passed in.
3043 **/
3044static struct lpfc_iocbq *
3045lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3046 struct lpfc_iocbq *rspiocbp)
3047{
3048 struct lpfc_iocbq *saveq;
3049 struct lpfc_iocbq *cmdiocbp;
3050 struct lpfc_iocbq *next_iocb;
3051 IOCB_t *irsp = NULL;
3052 uint32_t free_saveq;
3053 uint8_t iocb_cmd_type;
3054 lpfc_iocb_type type;
3055 unsigned long iflag;
3056 int rc;
3057
3058 spin_lock_irqsave(&phba->hbalock, iflag);
3059 /* First add the response iocb to the countinueq list */
3060 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3061 pring->iocb_continueq_cnt++;
3062
Justin P. Mattock70f23fd2011-05-10 10:16:21 +02003063 /* Now, determine whether the list is completed for processing */
James Smart3772a992009-05-22 14:50:54 -04003064 irsp = &rspiocbp->iocb;
3065 if (irsp->ulpLe) {
3066 /*
3067 * By default, the driver expects to free all resources
3068 * associated with this iocb completion.
3069 */
3070 free_saveq = 1;
3071 saveq = list_get_first(&pring->iocb_continueq,
3072 struct lpfc_iocbq, list);
3073 irsp = &(saveq->iocb);
3074 list_del_init(&pring->iocb_continueq);
3075 pring->iocb_continueq_cnt = 0;
3076
3077 pring->stats.iocb_rsp++;
3078
3079 /*
3080 * If resource errors reported from HBA, reduce
3081 * queuedepths of the SCSI device.
3082 */
3083 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3084 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
3085 spin_unlock_irqrestore(&phba->hbalock, iflag);
3086 phba->lpfc_rampdown_queue_depth(phba);
3087 spin_lock_irqsave(&phba->hbalock, iflag);
3088 }
3089
3090 if (irsp->ulpStatus) {
3091 /* Rsp ring <ringno> error: IOCB */
3092 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3093 "0328 Rsp Ring %d error: "
3094 "IOCB Data: "
3095 "x%x x%x x%x x%x "
3096 "x%x x%x x%x x%x "
3097 "x%x x%x x%x x%x "
3098 "x%x x%x x%x x%x\n",
3099 pring->ringno,
3100 irsp->un.ulpWord[0],
3101 irsp->un.ulpWord[1],
3102 irsp->un.ulpWord[2],
3103 irsp->un.ulpWord[3],
3104 irsp->un.ulpWord[4],
3105 irsp->un.ulpWord[5],
3106 *(((uint32_t *) irsp) + 6),
3107 *(((uint32_t *) irsp) + 7),
3108 *(((uint32_t *) irsp) + 8),
3109 *(((uint32_t *) irsp) + 9),
3110 *(((uint32_t *) irsp) + 10),
3111 *(((uint32_t *) irsp) + 11),
3112 *(((uint32_t *) irsp) + 12),
3113 *(((uint32_t *) irsp) + 13),
3114 *(((uint32_t *) irsp) + 14),
3115 *(((uint32_t *) irsp) + 15));
3116 }
3117
3118 /*
3119 * Fetch the IOCB command type and call the correct completion
3120 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3121 * get freed back to the lpfc_iocb_list by the discovery
3122 * kernel thread.
3123 */
3124 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3125 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3126 switch (type) {
3127 case LPFC_SOL_IOCB:
3128 spin_unlock_irqrestore(&phba->hbalock, iflag);
3129 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3130 spin_lock_irqsave(&phba->hbalock, iflag);
3131 break;
3132
3133 case LPFC_UNSOL_IOCB:
3134 spin_unlock_irqrestore(&phba->hbalock, iflag);
3135 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3136 spin_lock_irqsave(&phba->hbalock, iflag);
3137 if (!rc)
3138 free_saveq = 0;
3139 break;
3140
3141 case LPFC_ABORT_IOCB:
3142 cmdiocbp = NULL;
3143 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3144 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3145 saveq);
3146 if (cmdiocbp) {
3147 /* Call the specified completion routine */
3148 if (cmdiocbp->iocb_cmpl) {
3149 spin_unlock_irqrestore(&phba->hbalock,
3150 iflag);
3151 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3152 saveq);
3153 spin_lock_irqsave(&phba->hbalock,
3154 iflag);
3155 } else
3156 __lpfc_sli_release_iocbq(phba,
3157 cmdiocbp);
3158 }
3159 break;
3160
3161 case LPFC_UNKNOWN_IOCB:
3162 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3163 char adaptermsg[LPFC_MAX_ADPTMSG];
3164 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3165 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3166 MAX_MSG_DATA);
3167 dev_warn(&((phba->pcidev)->dev),
3168 "lpfc%d: %s\n",
3169 phba->brd_no, adaptermsg);
3170 } else {
3171 /* Unknown IOCB command */
3172 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3173 "0335 Unknown IOCB "
3174 "command Data: x%x "
3175 "x%x x%x x%x\n",
3176 irsp->ulpCommand,
3177 irsp->ulpStatus,
3178 irsp->ulpIoTag,
3179 irsp->ulpContext);
3180 }
3181 break;
3182 }
3183
3184 if (free_saveq) {
3185 list_for_each_entry_safe(rspiocbp, next_iocb,
3186 &saveq->list, list) {
3187 list_del(&rspiocbp->list);
3188 __lpfc_sli_release_iocbq(phba, rspiocbp);
3189 }
3190 __lpfc_sli_release_iocbq(phba, saveq);
3191 }
3192 rspiocbp = NULL;
3193 }
3194 spin_unlock_irqrestore(&phba->hbalock, iflag);
3195 return rspiocbp;
3196}
3197
3198/**
3199 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04003200 * @phba: Pointer to HBA context object.
3201 * @pring: Pointer to driver SLI ring object.
3202 * @mask: Host attention register mask for this ring.
3203 *
James Smart3772a992009-05-22 14:50:54 -04003204 * This routine wraps the actual slow_ring event process routine from the
3205 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04003206 **/
James Smart3772a992009-05-22 14:50:54 -04003207void
James Smart2e0fef82007-06-17 19:56:36 -05003208lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3209 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05003210{
James Smart3772a992009-05-22 14:50:54 -04003211 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3212}
3213
3214/**
3215 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3216 * @phba: Pointer to HBA context object.
3217 * @pring: Pointer to driver SLI ring object.
3218 * @mask: Host attention register mask for this ring.
3219 *
3220 * This function is called from the worker thread when there is a ring event
3221 * for non-fcp rings. The caller does not hold any lock. The function will
3222 * remove each response iocb in the response ring and calls the handle
3223 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3224 **/
3225static void
3226lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3227 struct lpfc_sli_ring *pring, uint32_t mask)
3228{
James Smart34b02dc2008-08-24 21:49:55 -04003229 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05003230 IOCB_t *entry;
3231 IOCB_t *irsp = NULL;
3232 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05003233 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05003234 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04003235 uint32_t status;
dea31012005-04-17 16:05:31 -05003236
James Smart34b02dc2008-08-24 21:49:55 -04003237 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05003238 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003239 pring->stats.iocb_event++;
3240
dea31012005-04-17 16:05:31 -05003241 /*
3242 * The next available response entry should never exceed the maximum
3243 * entries. If it does, treat it as an adapter hardware error.
3244 */
3245 portRspMax = pring->numRiocb;
3246 portRspPut = le32_to_cpu(pgp->rspPutInx);
3247 if (portRspPut >= portRspMax) {
3248 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003249 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05003250 * rsp ring <portRspMax>
3251 */
James Smarted957682007-06-17 19:56:37 -05003252 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003253 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003254 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04003255 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05003256
James Smart2e0fef82007-06-17 19:56:36 -05003257 phba->link_state = LPFC_HBA_ERROR;
3258 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003259
3260 phba->work_hs = HS_FFER3;
3261 lpfc_handle_eratt(phba);
3262
James Smart3772a992009-05-22 14:50:54 -04003263 return;
dea31012005-04-17 16:05:31 -05003264 }
3265
3266 rmb();
dea31012005-04-17 16:05:31 -05003267 while (pring->rspidx != portRspPut) {
3268 /*
3269 * Build a completion list and call the appropriate handler.
3270 * The process is to get the next available response iocb, get
3271 * a free iocb from the list, copy the response data into the
3272 * free iocb, insert to the continuation list, and update the
3273 * next response index to slim. This process makes response
3274 * iocb's in the ring available to DMA as fast as possible but
3275 * pays a penalty for a copy operation. Since the iocb is
3276 * only 32 bytes, this penalty is considered small relative to
3277 * the PCI reads for register values and a slim write. When
3278 * the ulpLe field is set, the entire Command has been
3279 * received.
3280 */
James Smarted957682007-06-17 19:56:37 -05003281 entry = lpfc_resp_iocb(phba, pring);
3282
James Smart858c9f62007-06-17 19:56:39 -05003283 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05003284 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05003285 if (rspiocbp == NULL) {
3286 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07003287 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05003288 break;
3289 }
3290
James Smarted957682007-06-17 19:56:37 -05003291 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3292 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05003293 irsp = &rspiocbp->iocb;
3294
3295 if (++pring->rspidx >= portRspMax)
3296 pring->rspidx = 0;
3297
James Smarta58cbd52007-08-02 11:09:43 -04003298 if (pring->ringno == LPFC_ELS_RING) {
3299 lpfc_debugfs_slow_ring_trc(phba,
3300 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3301 *(((uint32_t *) irsp) + 4),
3302 *(((uint32_t *) irsp) + 6),
3303 *(((uint32_t *) irsp) + 7));
3304 }
3305
James Smarted957682007-06-17 19:56:37 -05003306 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003307
James Smart3772a992009-05-22 14:50:54 -04003308 spin_unlock_irqrestore(&phba->hbalock, iflag);
3309 /* Handle the response IOCB */
3310 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3311 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003312
3313 /*
3314 * If the port response put pointer has not been updated, sync
3315 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3316 * response put pointer.
3317 */
3318 if (pring->rspidx == portRspPut) {
3319 portRspPut = le32_to_cpu(pgp->rspPutInx);
3320 }
3321 } /* while (pring->rspidx != portRspPut) */
3322
James Smart92d7f7b2007-06-17 19:56:38 -05003323 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05003324 /* At least one response entry has been freed */
3325 pring->stats.iocb_rsp_full++;
3326 /* SET RxRE_RSP in Chip Att register */
3327 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3328 writel(status, phba->CAregaddr);
3329 readl(phba->CAregaddr); /* flush */
3330 }
3331 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3332 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3333 pring->stats.iocb_cmd_empty++;
3334
3335 /* Force update of the local copy of cmdGetInx */
3336 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3337 lpfc_sli_resume_iocb(phba, pring);
3338
3339 if ((pring->lpfc_sli_cmd_available))
3340 (pring->lpfc_sli_cmd_available) (phba, pring);
3341
3342 }
3343
James Smart2e0fef82007-06-17 19:56:36 -05003344 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003345 return;
dea31012005-04-17 16:05:31 -05003346}
3347
James Smarte59058c2008-08-24 21:49:00 -04003348/**
James Smart4f774512009-05-22 14:52:35 -04003349 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3350 * @phba: Pointer to HBA context object.
3351 * @pring: Pointer to driver SLI ring object.
3352 * @mask: Host attention register mask for this ring.
3353 *
3354 * This function is called from the worker thread when there is a pending
3355 * ELS response iocb on the driver internal slow-path response iocb worker
3356 * queue. The caller does not hold any lock. The function will remove each
3357 * response iocb from the response worker queue and calls the handle
3358 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3359 **/
3360static void
3361lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3362 struct lpfc_sli_ring *pring, uint32_t mask)
3363{
3364 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04003365 struct hbq_dmabuf *dmabuf;
3366 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04003367 unsigned long iflag;
3368
James Smart45ed1192009-10-02 15:17:02 -04003369 spin_lock_irqsave(&phba->hbalock, iflag);
3370 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3371 spin_unlock_irqrestore(&phba->hbalock, iflag);
3372 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04003373 /* Get the response iocb from the head of work queue */
3374 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04003375 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04003376 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04003377 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04003378
3379 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3380 case CQE_CODE_COMPL_WQE:
3381 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3382 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04003383 /* Translate ELS WCQE to response IOCBQ */
3384 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3385 irspiocbq);
3386 if (irspiocbq)
3387 lpfc_sli_sp_handle_rspiocb(phba, pring,
3388 irspiocbq);
James Smart4d9ab992009-10-02 15:16:39 -04003389 break;
3390 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -04003391 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -04003392 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3393 cq_event);
3394 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3395 break;
3396 default:
3397 break;
3398 }
James Smart4f774512009-05-22 14:52:35 -04003399 }
3400}
3401
3402/**
James Smart3621a712009-04-06 18:47:14 -04003403 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003404 * @phba: Pointer to HBA context object.
3405 * @pring: Pointer to driver SLI ring object.
3406 *
3407 * This function aborts all iocbs in the given ring and frees all the iocb
3408 * objects in txq. This function issues an abort iocb for all the iocb commands
3409 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3410 * the return of this function. The caller is not required to hold any locks.
3411 **/
James Smart2e0fef82007-06-17 19:56:36 -05003412void
dea31012005-04-17 16:05:31 -05003413lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3414{
James Smart2534ba72007-04-25 09:52:20 -04003415 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003416 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003417
James Smart92d7f7b2007-06-17 19:56:38 -05003418 if (pring->ringno == LPFC_ELS_RING) {
3419 lpfc_fabric_abort_hba(phba);
3420 }
3421
dea31012005-04-17 16:05:31 -05003422 /* Error everything on txq and txcmplq
3423 * First do the txq.
3424 */
James Smart2e0fef82007-06-17 19:56:36 -05003425 spin_lock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003426 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05003427 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05003428
3429 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04003430 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3431 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3432
James Smart2e0fef82007-06-17 19:56:36 -05003433 spin_unlock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003434
James Smarta257bf92009-04-06 18:48:10 -04003435 /* Cancel all the IOCBs from the completions list */
3436 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3437 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003438}
3439
James Smarte59058c2008-08-24 21:49:00 -04003440/**
James Smart3621a712009-04-06 18:47:14 -04003441 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003442 * @phba: Pointer to HBA context object.
3443 *
3444 * This function flushes all iocbs in the fcp ring and frees all the iocb
3445 * objects in txq and txcmplq. This function will not issue abort iocbs
3446 * for all the iocb commands in txcmplq, they will just be returned with
3447 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3448 * slot has been permanently disabled.
3449 **/
3450void
3451lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3452{
3453 LIST_HEAD(txq);
3454 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003455 struct lpfc_sli *psli = &phba->sli;
3456 struct lpfc_sli_ring *pring;
3457
3458 /* Currently, only one fcp ring */
3459 pring = &psli->ring[psli->fcp_ring];
3460
3461 spin_lock_irq(&phba->hbalock);
3462 /* Retrieve everything on txq */
3463 list_splice_init(&pring->txq, &txq);
3464 pring->txq_cnt = 0;
3465
3466 /* Retrieve everything on the txcmplq */
3467 list_splice_init(&pring->txcmplq, &txcmplq);
3468 pring->txcmplq_cnt = 0;
3469 spin_unlock_irq(&phba->hbalock);
3470
3471 /* Flush the txq */
James Smarta257bf92009-04-06 18:48:10 -04003472 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3473 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003474
3475 /* Flush the txcmpq */
James Smarta257bf92009-04-06 18:48:10 -04003476 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3477 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003478}
3479
3480/**
James Smart3772a992009-05-22 14:50:54 -04003481 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003482 * @phba: Pointer to HBA context object.
3483 * @mask: Bit mask to be checked.
3484 *
3485 * This function reads the host status register and compares
3486 * with the provided bit mask to check if HBA completed
3487 * the restart. This function will wait in a loop for the
3488 * HBA to complete restart. If the HBA does not restart within
3489 * 15 iterations, the function will reset the HBA again. The
3490 * function returns 1 when HBA fail to restart otherwise returns
3491 * zero.
3492 **/
James Smart3772a992009-05-22 14:50:54 -04003493static int
3494lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003495{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003496 uint32_t status;
3497 int i = 0;
3498 int retval = 0;
dea31012005-04-17 16:05:31 -05003499
Jamie Wellnitz41415862006-02-28 19:25:27 -05003500 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003501 if (lpfc_readl(phba->HSregaddr, &status))
3502 return 1;
dea31012005-04-17 16:05:31 -05003503
Jamie Wellnitz41415862006-02-28 19:25:27 -05003504 /*
3505 * Check status register every 100ms for 5 retries, then every
3506 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3507 * every 2.5 sec for 4.
3508 * Break our of the loop if errors occurred during init.
3509 */
3510 while (((status & mask) != mask) &&
3511 !(status & HS_FFERM) &&
3512 i++ < 20) {
dea31012005-04-17 16:05:31 -05003513
Jamie Wellnitz41415862006-02-28 19:25:27 -05003514 if (i <= 5)
3515 msleep(10);
3516 else if (i <= 10)
3517 msleep(500);
3518 else
3519 msleep(2500);
dea31012005-04-17 16:05:31 -05003520
Jamie Wellnitz41415862006-02-28 19:25:27 -05003521 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003522 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003523 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003524 lpfc_sli_brdrestart(phba);
3525 }
3526 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05003527 if (lpfc_readl(phba->HSregaddr, &status)) {
3528 retval = 1;
3529 break;
3530 }
dea31012005-04-17 16:05:31 -05003531 }
dea31012005-04-17 16:05:31 -05003532
Jamie Wellnitz41415862006-02-28 19:25:27 -05003533 /* Check to see if any errors occurred during init */
3534 if ((status & HS_FFERM) || (i >= 20)) {
James Smarte40a02c2010-02-26 14:13:54 -05003535 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3536 "2751 Adapter failed to restart, "
3537 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3538 status,
3539 readl(phba->MBslimaddr + 0xa8),
3540 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003541 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003542 retval = 1;
3543 }
dea31012005-04-17 16:05:31 -05003544
Jamie Wellnitz41415862006-02-28 19:25:27 -05003545 return retval;
dea31012005-04-17 16:05:31 -05003546}
3547
James Smartda0436e2009-05-22 14:51:39 -04003548/**
3549 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3550 * @phba: Pointer to HBA context object.
3551 * @mask: Bit mask to be checked.
3552 *
3553 * This function checks the host status register to check if HBA is
3554 * ready. This function will wait in a loop for the HBA to be ready
3555 * If the HBA is not ready , the function will will reset the HBA PCI
3556 * function again. The function returns 1 when HBA fail to be ready
3557 * otherwise returns zero.
3558 **/
3559static int
3560lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3561{
3562 uint32_t status;
3563 int retval = 0;
3564
3565 /* Read the HBA Host Status Register */
3566 status = lpfc_sli4_post_status_check(phba);
3567
3568 if (status) {
3569 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3570 lpfc_sli_brdrestart(phba);
3571 status = lpfc_sli4_post_status_check(phba);
3572 }
3573
3574 /* Check to see if any errors occurred during init */
3575 if (status) {
3576 phba->link_state = LPFC_HBA_ERROR;
3577 retval = 1;
3578 } else
3579 phba->sli4_hba.intr_enable = 0;
3580
3581 return retval;
3582}
3583
3584/**
3585 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3586 * @phba: Pointer to HBA context object.
3587 * @mask: Bit mask to be checked.
3588 *
3589 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3590 * from the API jump table function pointer from the lpfc_hba struct.
3591 **/
3592int
3593lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3594{
3595 return phba->lpfc_sli_brdready(phba, mask);
3596}
3597
James Smart92908312006-03-07 15:04:13 -05003598#define BARRIER_TEST_PATTERN (0xdeadbeef)
3599
James Smarte59058c2008-08-24 21:49:00 -04003600/**
James Smart3621a712009-04-06 18:47:14 -04003601 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003602 * @phba: Pointer to HBA context object.
3603 *
James Smart1b511972011-12-13 13:23:09 -05003604 * This function is called before resetting an HBA. This function is called
3605 * with hbalock held and requests HBA to quiesce DMAs before a reset.
James Smarte59058c2008-08-24 21:49:00 -04003606 **/
James Smart2e0fef82007-06-17 19:56:36 -05003607void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003608{
James Smart65a29c12006-07-06 15:50:50 -04003609 uint32_t __iomem *resp_buf;
3610 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003611 volatile uint32_t mbox;
James Smart9940b972011-03-11 16:06:12 -05003612 uint32_t hc_copy, ha_copy, resp_data;
James Smart92908312006-03-07 15:04:13 -05003613 int i;
3614 uint8_t hdrtype;
3615
3616 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3617 if (hdrtype != 0x80 ||
3618 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3619 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3620 return;
3621
3622 /*
3623 * Tell the other part of the chip to suspend temporarily all
3624 * its DMA activity.
3625 */
James Smart65a29c12006-07-06 15:50:50 -04003626 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003627
3628 /* Disable the error attention */
James Smart9940b972011-03-11 16:06:12 -05003629 if (lpfc_readl(phba->HCregaddr, &hc_copy))
3630 return;
James Smart92908312006-03-07 15:04:13 -05003631 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3632 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003633 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003634
James Smart9940b972011-03-11 16:06:12 -05003635 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3636 return;
3637 if (ha_copy & HA_ERATT) {
James Smart92908312006-03-07 15:04:13 -05003638 /* Clear Chip error bit */
3639 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003640 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003641 }
3642
3643 mbox = 0;
3644 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3645 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3646
3647 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003648 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003649 writel(mbox, mbox_buf);
3650
James Smart9940b972011-03-11 16:06:12 -05003651 for (i = 0; i < 50; i++) {
3652 if (lpfc_readl((resp_buf + 1), &resp_data))
3653 return;
3654 if (resp_data != ~(BARRIER_TEST_PATTERN))
3655 mdelay(1);
3656 else
3657 break;
3658 }
3659 resp_data = 0;
3660 if (lpfc_readl((resp_buf + 1), &resp_data))
3661 return;
3662 if (resp_data != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003663 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003664 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003665 goto restore_hc;
3666 else
3667 goto clear_errat;
3668 }
3669
3670 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
James Smart9940b972011-03-11 16:06:12 -05003671 resp_data = 0;
3672 for (i = 0; i < 500; i++) {
3673 if (lpfc_readl(resp_buf, &resp_data))
3674 return;
3675 if (resp_data != mbox)
3676 mdelay(1);
3677 else
3678 break;
3679 }
James Smart92908312006-03-07 15:04:13 -05003680
3681clear_errat:
3682
James Smart9940b972011-03-11 16:06:12 -05003683 while (++i < 500) {
3684 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3685 return;
3686 if (!(ha_copy & HA_ERATT))
3687 mdelay(1);
3688 else
3689 break;
3690 }
James Smart92908312006-03-07 15:04:13 -05003691
3692 if (readl(phba->HAregaddr) & HA_ERATT) {
3693 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003694 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003695 }
3696
3697restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003698 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003699 writel(hc_copy, phba->HCregaddr);
3700 readl(phba->HCregaddr); /* flush */
3701}
3702
James Smarte59058c2008-08-24 21:49:00 -04003703/**
James Smart3621a712009-04-06 18:47:14 -04003704 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003705 * @phba: Pointer to HBA context object.
3706 *
3707 * This function issues a kill_board mailbox command and waits for
3708 * the error attention interrupt. This function is called for stopping
3709 * the firmware processing. The caller is not required to hold any
3710 * locks. This function calls lpfc_hba_down_post function to free
3711 * any pending commands after the kill. The function will return 1 when it
3712 * fails to kill the board else will return 0.
3713 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003714int
James Smart2e0fef82007-06-17 19:56:36 -05003715lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003716{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003717 struct lpfc_sli *psli;
3718 LPFC_MBOXQ_t *pmb;
3719 uint32_t status;
3720 uint32_t ha_copy;
3721 int retval;
3722 int i = 0;
3723
3724 psli = &phba->sli;
3725
3726 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003727 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003728 "0329 Kill HBA Data: x%x x%x\n",
3729 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003730
James Smart98c9ea52007-10-27 13:37:33 -04003731 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3732 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003733 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003734
3735 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003736 spin_lock_irq(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -05003737 if (lpfc_readl(phba->HCregaddr, &status)) {
3738 spin_unlock_irq(&phba->hbalock);
3739 mempool_free(pmb, phba->mbox_mem_pool);
3740 return 1;
3741 }
Jamie Wellnitz41415862006-02-28 19:25:27 -05003742 status &= ~HC_ERINT_ENA;
3743 writel(status, phba->HCregaddr);
3744 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003745 phba->link_flag |= LS_IGNORE_ERATT;
3746 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003747
3748 lpfc_kill_board(phba, pmb);
3749 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3750 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3751
3752 if (retval != MBX_SUCCESS) {
3753 if (retval != MBX_BUSY)
3754 mempool_free(pmb, phba->mbox_mem_pool);
James Smarte40a02c2010-02-26 14:13:54 -05003755 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3756 "2752 KILL_BOARD command failed retval %d\n",
3757 retval);
James Smart2e0fef82007-06-17 19:56:36 -05003758 spin_lock_irq(&phba->hbalock);
3759 phba->link_flag &= ~LS_IGNORE_ERATT;
3760 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003761 return 1;
3762 }
3763
James Smartf4b4c682009-05-22 14:53:12 -04003764 spin_lock_irq(&phba->hbalock);
3765 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3766 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003767
Jamie Wellnitz41415862006-02-28 19:25:27 -05003768 mempool_free(pmb, phba->mbox_mem_pool);
3769
3770 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3771 * attention every 100ms for 3 seconds. If we don't get ERATT after
3772 * 3 seconds we still set HBA_ERROR state because the status of the
3773 * board is now undefined.
3774 */
James Smart9940b972011-03-11 16:06:12 -05003775 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3776 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003777 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3778 mdelay(100);
James Smart9940b972011-03-11 16:06:12 -05003779 if (lpfc_readl(phba->HAregaddr, &ha_copy))
3780 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003781 }
3782
3783 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003784 if (ha_copy & HA_ERATT) {
3785 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003786 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003787 }
James Smart2e0fef82007-06-17 19:56:36 -05003788 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003789 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003790 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003791 phba->link_flag &= ~LS_IGNORE_ERATT;
3792 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003793
Jamie Wellnitz41415862006-02-28 19:25:27 -05003794 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003795 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003796
James Smart2e0fef82007-06-17 19:56:36 -05003797 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003798}
3799
James Smarte59058c2008-08-24 21:49:00 -04003800/**
James Smart3772a992009-05-22 14:50:54 -04003801 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003802 * @phba: Pointer to HBA context object.
3803 *
3804 * This function resets the HBA by writing HC_INITFF to the control
3805 * register. After the HBA resets, this function resets all the iocb ring
3806 * indices. This function disables PCI layer parity checking during
3807 * the reset.
3808 * This function returns 0 always.
3809 * The caller is not required to hold any locks.
3810 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003811int
James Smart2e0fef82007-06-17 19:56:36 -05003812lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003813{
3814 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05003815 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003816 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05003817 int i;
dea31012005-04-17 16:05:31 -05003818
Jamie Wellnitz41415862006-02-28 19:25:27 -05003819 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05003820
Jamie Wellnitz41415862006-02-28 19:25:27 -05003821 /* Reset HBA */
3822 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003823 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003824 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05003825
3826 /* perform board reset */
3827 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003828 phba->link_events = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003829 phba->pport->fc_myDID = 0;
3830 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05003831
Jamie Wellnitz41415862006-02-28 19:25:27 -05003832 /* Turn off parity checking and serr during the physical reset */
3833 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3834 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3835 (cfg_value &
3836 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3837
James Smart3772a992009-05-22 14:50:54 -04003838 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3839
Jamie Wellnitz41415862006-02-28 19:25:27 -05003840 /* Now toggle INITFF bit in the Host Control Register */
3841 writel(HC_INITFF, phba->HCregaddr);
3842 mdelay(1);
3843 readl(phba->HCregaddr); /* flush */
3844 writel(0, phba->HCregaddr);
3845 readl(phba->HCregaddr); /* flush */
3846
3847 /* Restore PCI cmd register */
3848 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05003849
3850 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05003851 for (i = 0; i < psli->num_rings; i++) {
3852 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05003853 pring->flag = 0;
3854 pring->rspidx = 0;
3855 pring->next_cmdidx = 0;
3856 pring->local_getidx = 0;
3857 pring->cmdidx = 0;
3858 pring->missbufcnt = 0;
3859 }
dea31012005-04-17 16:05:31 -05003860
James Smart2e0fef82007-06-17 19:56:36 -05003861 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003862 return 0;
3863}
3864
James Smarte59058c2008-08-24 21:49:00 -04003865/**
James Smartda0436e2009-05-22 14:51:39 -04003866 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3867 * @phba: Pointer to HBA context object.
3868 *
3869 * This function resets a SLI4 HBA. This function disables PCI layer parity
3870 * checking during resets the device. The caller is not required to hold
3871 * any locks.
3872 *
3873 * This function returns 0 always.
3874 **/
3875int
3876lpfc_sli4_brdreset(struct lpfc_hba *phba)
3877{
3878 struct lpfc_sli *psli = &phba->sli;
3879 uint16_t cfg_value;
James Smartda0436e2009-05-22 14:51:39 -04003880
3881 /* Reset HBA */
3882 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3883 "0295 Reset HBA Data: x%x x%x\n",
3884 phba->pport->port_state, psli->sli_flag);
3885
3886 /* perform board reset */
3887 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003888 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04003889 phba->pport->fc_myDID = 0;
3890 phba->pport->fc_prevDID = 0;
3891
James Smartda0436e2009-05-22 14:51:39 -04003892 spin_lock_irq(&phba->hbalock);
3893 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3894 phba->fcf.fcf_flag = 0;
James Smartda0436e2009-05-22 14:51:39 -04003895 spin_unlock_irq(&phba->hbalock);
3896
3897 /* Now physically reset the device */
3898 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3899 "0389 Performing PCI function reset!\n");
James Smartbe858b62010-12-15 17:57:20 -05003900
3901 /* Turn off parity checking and serr during the physical reset */
3902 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3903 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3904 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3905
James Smartda0436e2009-05-22 14:51:39 -04003906 /* Perform FCoE PCI function reset */
James Smart2e90f4b2011-12-13 13:22:37 -05003907 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04003908 lpfc_pci_function_reset(phba);
3909
James Smartbe858b62010-12-15 17:57:20 -05003910 /* Restore PCI cmd register */
3911 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3912
James Smartda0436e2009-05-22 14:51:39 -04003913 return 0;
3914}
3915
3916/**
3917 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04003918 * @phba: Pointer to HBA context object.
3919 *
3920 * This function is called in the SLI initialization code path to
3921 * restart the HBA. The caller is not required to hold any lock.
3922 * This function writes MBX_RESTART mailbox command to the SLIM and
3923 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3924 * function to free any pending commands. The function enables
3925 * POST only during the first initialization. The function returns zero.
3926 * The function does not guarantee completion of MBX_RESTART mailbox
3927 * command before the return of this function.
3928 **/
James Smartda0436e2009-05-22 14:51:39 -04003929static int
3930lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003931{
3932 MAILBOX_t *mb;
3933 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003934 volatile uint32_t word0;
3935 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04003936 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003937
James Smart2e0fef82007-06-17 19:56:36 -05003938 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003939
James Smart0d878412009-10-02 15:16:56 -04003940 /* Take PCIe device Advanced Error Reporting (AER) state */
3941 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3942
Jamie Wellnitz41415862006-02-28 19:25:27 -05003943 psli = &phba->sli;
3944
3945 /* Restart HBA */
3946 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003947 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003948 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003949
3950 word0 = 0;
3951 mb = (MAILBOX_t *) &word0;
3952 mb->mbxCommand = MBX_RESTART;
3953 mb->mbxHc = 1;
3954
James Smart92908312006-03-07 15:04:13 -05003955 lpfc_reset_barrier(phba);
3956
Jamie Wellnitz41415862006-02-28 19:25:27 -05003957 to_slim = phba->MBslimaddr;
3958 writel(*(uint32_t *) mb, to_slim);
3959 readl(to_slim); /* flush */
3960
3961 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05003962 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003963 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05003964 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05003965 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04003966 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003967 writel(*(uint32_t *) mb, to_slim);
3968 readl(to_slim); /* flush */
3969
3970 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003971 phba->pport->stopped = 0;
3972 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04003973 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003974 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003975
James Smart64ba8812006-08-02 15:24:34 -04003976 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3977 psli->stats_start = get_seconds();
3978
James Smarteaf15d52008-12-04 22:39:29 -05003979 /* Give the INITFF and Post time to settle. */
3980 mdelay(100);
dea31012005-04-17 16:05:31 -05003981
James Smart0d878412009-10-02 15:16:56 -04003982 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3983 if (hba_aer_enabled)
3984 pci_disable_pcie_error_reporting(phba->pcidev);
3985
Jamie Wellnitz41415862006-02-28 19:25:27 -05003986 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05003987
3988 return 0;
3989}
3990
James Smarte59058c2008-08-24 21:49:00 -04003991/**
James Smartda0436e2009-05-22 14:51:39 -04003992 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3993 * @phba: Pointer to HBA context object.
3994 *
3995 * This function is called in the SLI initialization code path to restart
3996 * a SLI4 HBA. The caller is not required to hold any lock.
3997 * At the end of the function, it calls lpfc_hba_down_post function to
3998 * free any pending commands.
3999 **/
4000static int
4001lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
4002{
4003 struct lpfc_sli *psli = &phba->sli;
James Smart75baf692010-06-08 18:31:21 -04004004 uint32_t hba_aer_enabled;
James Smartda0436e2009-05-22 14:51:39 -04004005
4006 /* Restart HBA */
4007 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4008 "0296 Restart HBA Data: x%x x%x\n",
4009 phba->pport->port_state, psli->sli_flag);
4010
James Smart75baf692010-06-08 18:31:21 -04004011 /* Take PCIe device Advanced Error Reporting (AER) state */
4012 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
4013
James Smartda0436e2009-05-22 14:51:39 -04004014 lpfc_sli4_brdreset(phba);
4015
4016 spin_lock_irq(&phba->hbalock);
4017 phba->pport->stopped = 0;
4018 phba->link_state = LPFC_INIT_START;
4019 phba->hba_flag = 0;
4020 spin_unlock_irq(&phba->hbalock);
4021
4022 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
4023 psli->stats_start = get_seconds();
4024
James Smart75baf692010-06-08 18:31:21 -04004025 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4026 if (hba_aer_enabled)
4027 pci_disable_pcie_error_reporting(phba->pcidev);
4028
James Smartda0436e2009-05-22 14:51:39 -04004029 lpfc_hba_down_post(phba);
4030
4031 return 0;
4032}
4033
4034/**
4035 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4036 * @phba: Pointer to HBA context object.
4037 *
4038 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4039 * API jump table function pointer from the lpfc_hba struct.
4040**/
4041int
4042lpfc_sli_brdrestart(struct lpfc_hba *phba)
4043{
4044 return phba->lpfc_sli_brdrestart(phba);
4045}
4046
4047/**
James Smart3621a712009-04-06 18:47:14 -04004048 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04004049 * @phba: Pointer to HBA context object.
4050 *
4051 * This function is called after a HBA restart to wait for successful
4052 * restart of the HBA. Successful restart of the HBA is indicated by
4053 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4054 * iteration, the function will restart the HBA again. The function returns
4055 * zero if HBA successfully restarted else returns negative error code.
4056 **/
dea31012005-04-17 16:05:31 -05004057static int
4058lpfc_sli_chipset_init(struct lpfc_hba *phba)
4059{
4060 uint32_t status, i = 0;
4061
4062 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004063 if (lpfc_readl(phba->HSregaddr, &status))
4064 return -EIO;
dea31012005-04-17 16:05:31 -05004065
4066 /* Check status register to see what current state is */
4067 i = 0;
4068 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4069
James Smartdcf2a4e2010-09-29 11:18:53 -04004070 /* Check every 10ms for 10 retries, then every 100ms for 90
4071 * retries, then every 1 sec for 50 retires for a total of
4072 * ~60 seconds before reset the board again and check every
4073 * 1 sec for 50 retries. The up to 60 seconds before the
4074 * board ready is required by the Falcon FIPS zeroization
4075 * complete, and any reset the board in between shall cause
4076 * restart of zeroization, further delay the board ready.
dea31012005-04-17 16:05:31 -05004077 */
James Smartdcf2a4e2010-09-29 11:18:53 -04004078 if (i++ >= 200) {
dea31012005-04-17 16:05:31 -05004079 /* Adapter failed to init, timeout, status reg
4080 <status> */
James Smarted957682007-06-17 19:56:37 -05004081 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004082 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004083 "timeout, status reg x%x, "
4084 "FW Data: A8 x%x AC x%x\n", status,
4085 readl(phba->MBslimaddr + 0xa8),
4086 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004087 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004088 return -ETIMEDOUT;
4089 }
4090
4091 /* Check to see if any errors occurred during init */
4092 if (status & HS_FFERM) {
4093 /* ERROR: During chipset initialization */
4094 /* Adapter failed to init, chipset, status reg
4095 <status> */
James Smarted957682007-06-17 19:56:37 -05004096 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004097 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004098 "chipset, status reg x%x, "
4099 "FW Data: A8 x%x AC x%x\n", status,
4100 readl(phba->MBslimaddr + 0xa8),
4101 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004102 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004103 return -EIO;
4104 }
4105
James Smartdcf2a4e2010-09-29 11:18:53 -04004106 if (i <= 10)
dea31012005-04-17 16:05:31 -05004107 msleep(10);
James Smartdcf2a4e2010-09-29 11:18:53 -04004108 else if (i <= 100)
4109 msleep(100);
4110 else
4111 msleep(1000);
dea31012005-04-17 16:05:31 -05004112
James Smartdcf2a4e2010-09-29 11:18:53 -04004113 if (i == 150) {
4114 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05004115 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004116 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004117 }
4118 /* Read the HBA Host Status Register */
James Smart9940b972011-03-11 16:06:12 -05004119 if (lpfc_readl(phba->HSregaddr, &status))
4120 return -EIO;
dea31012005-04-17 16:05:31 -05004121 }
4122
4123 /* Check to see if any errors occurred during init */
4124 if (status & HS_FFERM) {
4125 /* ERROR: During chipset initialization */
4126 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05004127 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004128 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05004129 "status reg x%x, "
4130 "FW Data: A8 x%x AC x%x\n", status,
4131 readl(phba->MBslimaddr + 0xa8),
4132 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004133 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004134 return -EIO;
4135 }
4136
4137 /* Clear all interrupt enable conditions */
4138 writel(0, phba->HCregaddr);
4139 readl(phba->HCregaddr); /* flush */
4140
4141 /* setup host attn register */
4142 writel(0xffffffff, phba->HAregaddr);
4143 readl(phba->HAregaddr); /* flush */
4144 return 0;
4145}
4146
James Smarte59058c2008-08-24 21:49:00 -04004147/**
James Smart3621a712009-04-06 18:47:14 -04004148 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04004149 *
4150 * This function calculates and returns the number of HBQs required to be
4151 * configured.
4152 **/
James Smart78b2d852007-08-02 11:10:21 -04004153int
James Smarted957682007-06-17 19:56:37 -05004154lpfc_sli_hbq_count(void)
4155{
James Smart92d7f7b2007-06-17 19:56:38 -05004156 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05004157}
4158
James Smarte59058c2008-08-24 21:49:00 -04004159/**
James Smart3621a712009-04-06 18:47:14 -04004160 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004161 *
4162 * This function adds the number of hbq entries in every HBQ to get
4163 * the total number of hbq entries required for the HBA and returns
4164 * the total count.
4165 **/
James Smarted957682007-06-17 19:56:37 -05004166static int
4167lpfc_sli_hbq_entry_count(void)
4168{
4169 int hbq_count = lpfc_sli_hbq_count();
4170 int count = 0;
4171 int i;
4172
4173 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05004174 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05004175 return count;
4176}
4177
James Smarte59058c2008-08-24 21:49:00 -04004178/**
James Smart3621a712009-04-06 18:47:14 -04004179 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004180 *
4181 * This function calculates amount of memory required for all hbq entries
4182 * to be configured and returns the total memory required.
4183 **/
dea31012005-04-17 16:05:31 -05004184int
James Smarted957682007-06-17 19:56:37 -05004185lpfc_sli_hbq_size(void)
4186{
4187 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4188}
4189
James Smarte59058c2008-08-24 21:49:00 -04004190/**
James Smart3621a712009-04-06 18:47:14 -04004191 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04004192 * @phba: Pointer to HBA context object.
4193 *
4194 * This function is called during the SLI initialization to configure
4195 * all the HBQs and post buffers to the HBQ. The caller is not
4196 * required to hold any locks. This function will return zero if successful
4197 * else it will return negative error code.
4198 **/
James Smarted957682007-06-17 19:56:37 -05004199static int
4200lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4201{
4202 int hbq_count = lpfc_sli_hbq_count();
4203 LPFC_MBOXQ_t *pmb;
4204 MAILBOX_t *pmbox;
4205 uint32_t hbqno;
4206 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05004207
James Smart92d7f7b2007-06-17 19:56:38 -05004208 /* Get a Mailbox buffer to setup mailbox
4209 * commands for HBA initialization
4210 */
James Smarted957682007-06-17 19:56:37 -05004211 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4212
4213 if (!pmb)
4214 return -ENOMEM;
4215
James Smart04c68492009-05-22 14:52:52 -04004216 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05004217
4218 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4219 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05004220 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05004221
4222 hbq_entry_index = 0;
4223 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4224 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4225 phba->hbqs[hbqno].hbqPutIdx = 0;
4226 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4227 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05004228 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04004229 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4230 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05004231 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4232
4233 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4234 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4235 mbxStatus <status>, ring <num> */
4236
4237 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004238 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004239 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05004240 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004241 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05004242 pmbox->mbxStatus, hbqno);
4243
4244 phba->link_state = LPFC_HBA_ERROR;
4245 mempool_free(pmb, phba->mbox_mem_pool);
James Smart6e7288d2010-06-07 15:23:35 -04004246 return -ENXIO;
James Smarted957682007-06-17 19:56:37 -05004247 }
4248 }
4249 phba->hbq_count = hbq_count;
4250
James Smarted957682007-06-17 19:56:37 -05004251 mempool_free(pmb, phba->mbox_mem_pool);
4252
James Smart92d7f7b2007-06-17 19:56:38 -05004253 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04004254 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4255 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05004256 return 0;
4257}
4258
James Smarte59058c2008-08-24 21:49:00 -04004259/**
James Smart4f774512009-05-22 14:52:35 -04004260 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4261 * @phba: Pointer to HBA context object.
4262 *
4263 * This function is called during the SLI initialization to configure
4264 * all the HBQs and post buffers to the HBQ. The caller is not
4265 * required to hold any locks. This function will return zero if successful
4266 * else it will return negative error code.
4267 **/
4268static int
4269lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4270{
4271 phba->hbq_in_use = 1;
4272 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4273 phba->hbq_count = 1;
4274 /* Initially populate or replenish the HBQs */
4275 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4276 return 0;
4277}
4278
4279/**
James Smart3621a712009-04-06 18:47:14 -04004280 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04004281 * @phba: Pointer to HBA context object.
4282 * @sli_mode: sli mode - 2/3
4283 *
4284 * This function is called by the sli intialization code path
4285 * to issue config_port mailbox command. This function restarts the
4286 * HBA firmware and issues a config_port mailbox command to configure
4287 * the SLI interface in the sli mode specified by sli_mode
4288 * variable. The caller is not required to hold any locks.
4289 * The function returns 0 if successful, else returns negative error
4290 * code.
4291 **/
James Smart93996272008-08-24 21:50:30 -04004292int
4293lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05004294{
4295 LPFC_MBOXQ_t *pmb;
4296 uint32_t resetcount = 0, rc = 0, done = 0;
4297
4298 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4299 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05004300 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004301 return -ENOMEM;
4302 }
4303
James Smarted957682007-06-17 19:56:37 -05004304 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05004305 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05004306 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004307 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004308 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05004309 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004310 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004311 rc = lpfc_sli_chipset_init(phba);
4312 if (rc)
4313 break;
4314
James Smart2e0fef82007-06-17 19:56:36 -05004315 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004316 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004317 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004318 resetcount++;
4319
James Smarted957682007-06-17 19:56:37 -05004320 /* Call pre CONFIG_PORT mailbox command initialization. A
4321 * value of 0 means the call was successful. Any other
4322 * nonzero value is a failure, but if ERESTART is returned,
4323 * the driver may reset the HBA and try again.
4324 */
dea31012005-04-17 16:05:31 -05004325 rc = lpfc_config_port_prep(phba);
4326 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05004327 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05004328 continue;
James Smart34b02dc2008-08-24 21:49:55 -04004329 } else if (rc)
dea31012005-04-17 16:05:31 -05004330 break;
James Smart6d368e52011-05-24 11:44:12 -04004331
James Smart2e0fef82007-06-17 19:56:36 -05004332 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05004333 lpfc_config_port(phba, pmb);
4334 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04004335 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4336 LPFC_SLI3_HBQ_ENABLED |
4337 LPFC_SLI3_CRP_ENABLED |
James Smartbc739052010-08-04 16:11:18 -04004338 LPFC_SLI3_BG_ENABLED |
4339 LPFC_SLI3_DSS_ENABLED);
James Smarted957682007-06-17 19:56:37 -05004340 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05004341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004342 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004343 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04004344 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05004345 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04004346 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004347 spin_unlock_irq(&phba->hbalock);
4348 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04004349 } else {
4350 /* Allow asynchronous mailbox command to go through */
4351 spin_lock_irq(&phba->hbalock);
4352 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4353 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05004354 done = 1;
James Smartcb69f7d2011-12-13 13:21:57 -05004355
4356 if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
4357 (pmb->u.mb.un.varCfgPort.gasabt == 0))
4358 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
4359 "3110 Port did not grant ASABT\n");
James Smart04c68492009-05-22 14:52:52 -04004360 }
dea31012005-04-17 16:05:31 -05004361 }
James Smarted957682007-06-17 19:56:37 -05004362 if (!done) {
4363 rc = -EINVAL;
4364 goto do_prep_failed;
4365 }
James Smart04c68492009-05-22 14:52:52 -04004366 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4367 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04004368 rc = -ENXIO;
4369 goto do_prep_failed;
4370 }
James Smart04c68492009-05-22 14:52:52 -04004371 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04004372 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004373 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4374 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4375 phba->max_vpi : phba->max_vports;
4376
James Smart34b02dc2008-08-24 21:49:55 -04004377 } else
4378 phba->max_vpi = 0;
James Smartbc739052010-08-04 16:11:18 -04004379 phba->fips_level = 0;
4380 phba->fips_spec_rev = 0;
4381 if (pmb->u.mb.un.varCfgPort.gdss) {
James Smart04c68492009-05-22 14:52:52 -04004382 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
James Smartbc739052010-08-04 16:11:18 -04004383 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4384 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4385 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4386 "2850 Security Crypto Active. FIPS x%d "
4387 "(Spec Rev: x%d)",
4388 phba->fips_level, phba->fips_spec_rev);
4389 }
4390 if (pmb->u.mb.un.varCfgPort.sec_err) {
4391 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4392 "2856 Config Port Security Crypto "
4393 "Error: x%x ",
4394 pmb->u.mb.un.varCfgPort.sec_err);
4395 }
James Smart04c68492009-05-22 14:52:52 -04004396 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04004397 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004398 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04004399 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart6e7288d2010-06-07 15:23:35 -04004400
4401 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4402 phba->port_gp = phba->mbox->us.s3_pgp.port;
James Smarte2a0a9d2008-12-04 22:40:02 -05004403
4404 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04004405 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05004406 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4407 else
4408 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4409 "0443 Adapter did not grant "
4410 "BlockGuard\n");
4411 }
James Smart34b02dc2008-08-24 21:49:55 -04004412 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05004413 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04004414 phba->port_gp = phba->mbox->us.s2.port;
James Smartd7c255b2008-08-24 21:50:00 -04004415 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05004416 }
James Smart92d7f7b2007-06-17 19:56:38 -05004417do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05004418 mempool_free(pmb, phba->mbox_mem_pool);
4419 return rc;
4420}
4421
James Smarte59058c2008-08-24 21:49:00 -04004422
4423/**
James Smart3621a712009-04-06 18:47:14 -04004424 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04004425 * @phba: Pointer to HBA context object.
4426 *
4427 * This function is the main SLI intialization function. This function
4428 * is called by the HBA intialization code, HBA reset code and HBA
4429 * error attention handler code. Caller is not required to hold any
4430 * locks. This function issues config_port mailbox command to configure
4431 * the SLI, setup iocb rings and HBQ rings. In the end the function
4432 * calls the config_port_post function to issue init_link mailbox
4433 * command and to start the discovery. The function will return zero
4434 * if successful, else it will return negative error code.
4435 **/
James Smarted957682007-06-17 19:56:37 -05004436int
4437lpfc_sli_hba_setup(struct lpfc_hba *phba)
4438{
4439 uint32_t rc;
James Smart6d368e52011-05-24 11:44:12 -04004440 int mode = 3, i;
4441 int longs;
James Smarted957682007-06-17 19:56:37 -05004442
4443 switch (lpfc_sli_mode) {
4444 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004445 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004446 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004447 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004448 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04004449 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004450 break;
4451 }
James Smarted957682007-06-17 19:56:37 -05004452 mode = 2;
4453 break;
4454 case 0:
4455 case 3:
4456 break;
4457 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004458 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004459 "1819 Unrecognized lpfc_sli_mode "
4460 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004461
4462 break;
4463 }
4464
James Smart93996272008-08-24 21:50:30 -04004465 rc = lpfc_sli_config_port(phba, mode);
4466
James Smarted957682007-06-17 19:56:37 -05004467 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004469 "1820 Unable to select SLI-3. "
4470 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004471 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004472 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05004473 if (rc)
dea31012005-04-17 16:05:31 -05004474 goto lpfc_sli_hba_setup_error;
4475
James Smart0d878412009-10-02 15:16:56 -04004476 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4477 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4478 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4479 if (!rc) {
4480 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4481 "2709 This device supports "
4482 "Advanced Error Reporting (AER)\n");
4483 spin_lock_irq(&phba->hbalock);
4484 phba->hba_flag |= HBA_AER_ENABLED;
4485 spin_unlock_irq(&phba->hbalock);
4486 } else {
4487 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4488 "2708 This device does not support "
4489 "Advanced Error Reporting (AER)\n");
4490 phba->cfg_aer_support = 0;
4491 }
4492 }
4493
James Smarted957682007-06-17 19:56:37 -05004494 if (phba->sli_rev == 3) {
4495 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4496 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004497 } else {
4498 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4499 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004500 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004501 }
4502
4503 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004504 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4505 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004506 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004507
4508 if (rc)
4509 goto lpfc_sli_hba_setup_error;
4510
James Smart6d368e52011-05-24 11:44:12 -04004511 /* Initialize VPIs. */
4512 if (phba->sli_rev == LPFC_SLI_REV3) {
4513 /*
4514 * The VPI bitmask and physical ID array are allocated
4515 * and initialized once only - at driver load. A port
4516 * reset doesn't need to reinitialize this memory.
4517 */
4518 if ((phba->vpi_bmask == NULL) && (phba->vpi_ids == NULL)) {
4519 longs = (phba->max_vpi + BITS_PER_LONG) / BITS_PER_LONG;
4520 phba->vpi_bmask = kzalloc(longs * sizeof(unsigned long),
4521 GFP_KERNEL);
4522 if (!phba->vpi_bmask) {
4523 rc = -ENOMEM;
4524 goto lpfc_sli_hba_setup_error;
4525 }
4526
4527 phba->vpi_ids = kzalloc(
4528 (phba->max_vpi+1) * sizeof(uint16_t),
4529 GFP_KERNEL);
4530 if (!phba->vpi_ids) {
4531 kfree(phba->vpi_bmask);
4532 rc = -ENOMEM;
4533 goto lpfc_sli_hba_setup_error;
4534 }
4535 for (i = 0; i < phba->max_vpi; i++)
4536 phba->vpi_ids[i] = i;
4537 }
4538 }
4539
James Smart93996272008-08-24 21:50:30 -04004540 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004541 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4542 rc = lpfc_sli_hbq_setup(phba);
4543 if (rc)
4544 goto lpfc_sli_hba_setup_error;
4545 }
James Smart04c68492009-05-22 14:52:52 -04004546 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004547 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004548 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004549
4550 rc = lpfc_config_port_post(phba);
4551 if (rc)
4552 goto lpfc_sli_hba_setup_error;
4553
James Smarted957682007-06-17 19:56:37 -05004554 return rc;
4555
James Smart92d7f7b2007-06-17 19:56:38 -05004556lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004557 phba->link_state = LPFC_HBA_ERROR;
James Smarte40a02c2010-02-26 14:13:54 -05004558 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004559 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004560 return rc;
4561}
4562
James Smartda0436e2009-05-22 14:51:39 -04004563/**
4564 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4565 * @phba: Pointer to HBA context object.
4566 * @mboxq: mailbox pointer.
4567 * This function issue a dump mailbox command to read config region
4568 * 23 and parse the records in the region and populate driver
4569 * data structure.
4570 **/
4571static int
James Smartff78d8f2011-12-13 13:21:35 -05004572lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
James Smartda0436e2009-05-22 14:51:39 -04004573{
James Smartff78d8f2011-12-13 13:21:35 -05004574 LPFC_MBOXQ_t *mboxq;
James Smartda0436e2009-05-22 14:51:39 -04004575 struct lpfc_dmabuf *mp;
4576 struct lpfc_mqe *mqe;
4577 uint32_t data_length;
4578 int rc;
4579
4580 /* Program the default value of vlan_id and fc_map */
4581 phba->valid_vlan = 0;
4582 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4583 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4584 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4585
James Smartff78d8f2011-12-13 13:21:35 -05004586 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4587 if (!mboxq)
James Smartda0436e2009-05-22 14:51:39 -04004588 return -ENOMEM;
4589
James Smartff78d8f2011-12-13 13:21:35 -05004590 mqe = &mboxq->u.mqe;
4591 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
4592 rc = -ENOMEM;
4593 goto out_free_mboxq;
4594 }
4595
James Smartda0436e2009-05-22 14:51:39 -04004596 mp = (struct lpfc_dmabuf *) mboxq->context1;
4597 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4598
4599 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4600 "(%d):2571 Mailbox cmd x%x Status x%x "
4601 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4602 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4603 "CQ: x%x x%x x%x x%x\n",
4604 mboxq->vport ? mboxq->vport->vpi : 0,
4605 bf_get(lpfc_mqe_command, mqe),
4606 bf_get(lpfc_mqe_status, mqe),
4607 mqe->un.mb_words[0], mqe->un.mb_words[1],
4608 mqe->un.mb_words[2], mqe->un.mb_words[3],
4609 mqe->un.mb_words[4], mqe->un.mb_words[5],
4610 mqe->un.mb_words[6], mqe->un.mb_words[7],
4611 mqe->un.mb_words[8], mqe->un.mb_words[9],
4612 mqe->un.mb_words[10], mqe->un.mb_words[11],
4613 mqe->un.mb_words[12], mqe->un.mb_words[13],
4614 mqe->un.mb_words[14], mqe->un.mb_words[15],
4615 mqe->un.mb_words[16], mqe->un.mb_words[50],
4616 mboxq->mcqe.word0,
4617 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4618 mboxq->mcqe.trailer);
4619
4620 if (rc) {
4621 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4622 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004623 rc = -EIO;
4624 goto out_free_mboxq;
James Smartda0436e2009-05-22 14:51:39 -04004625 }
4626 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004627 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004628 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4629 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004630 rc = -EIO;
4631 goto out_free_mboxq;
James Smartd11e31d2009-06-10 17:23:06 -04004632 }
James Smartda0436e2009-05-22 14:51:39 -04004633
4634 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4635 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4636 kfree(mp);
James Smartff78d8f2011-12-13 13:21:35 -05004637 rc = 0;
4638
4639out_free_mboxq:
4640 mempool_free(mboxq, phba->mbox_mem_pool);
4641 return rc;
James Smartda0436e2009-05-22 14:51:39 -04004642}
4643
4644/**
4645 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4646 * @phba: pointer to lpfc hba data structure.
4647 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4648 * @vpd: pointer to the memory to hold resulting port vpd data.
4649 * @vpd_size: On input, the number of bytes allocated to @vpd.
4650 * On output, the number of data bytes in @vpd.
4651 *
4652 * This routine executes a READ_REV SLI4 mailbox command. In
4653 * addition, this routine gets the port vpd data.
4654 *
4655 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02004656 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -04004657 * -ENOMEM - could not allocated memory.
James Smartda0436e2009-05-22 14:51:39 -04004658 **/
4659static int
4660lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4661 uint8_t *vpd, uint32_t *vpd_size)
4662{
4663 int rc = 0;
4664 uint32_t dma_size;
4665 struct lpfc_dmabuf *dmabuf;
4666 struct lpfc_mqe *mqe;
4667
4668 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4669 if (!dmabuf)
4670 return -ENOMEM;
4671
4672 /*
4673 * Get a DMA buffer for the vpd data resulting from the READ_REV
4674 * mailbox command.
4675 */
4676 dma_size = *vpd_size;
4677 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4678 dma_size,
4679 &dmabuf->phys,
4680 GFP_KERNEL);
4681 if (!dmabuf->virt) {
4682 kfree(dmabuf);
4683 return -ENOMEM;
4684 }
4685 memset(dmabuf->virt, 0, dma_size);
4686
4687 /*
4688 * The SLI4 implementation of READ_REV conflicts at word1,
4689 * bits 31:16 and SLI4 adds vpd functionality not present
4690 * in SLI3. This code corrects the conflicts.
4691 */
4692 lpfc_read_rev(phba, mboxq);
4693 mqe = &mboxq->u.mqe;
4694 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4695 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4696 mqe->un.read_rev.word1 &= 0x0000FFFF;
4697 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4698 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4699
4700 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4701 if (rc) {
4702 dma_free_coherent(&phba->pcidev->dev, dma_size,
4703 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05004704 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04004705 return -EIO;
4706 }
4707
James Smartda0436e2009-05-22 14:51:39 -04004708 /*
4709 * The available vpd length cannot be bigger than the
4710 * DMA buffer passed to the port. Catch the less than
4711 * case and update the caller's size.
4712 */
4713 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4714 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4715
James Smartd7c47992010-06-08 18:31:54 -04004716 memcpy(vpd, dmabuf->virt, *vpd_size);
4717
James Smartda0436e2009-05-22 14:51:39 -04004718 dma_free_coherent(&phba->pcidev->dev, dma_size,
4719 dmabuf->virt, dmabuf->phys);
4720 kfree(dmabuf);
4721 return 0;
4722}
4723
4724/**
James Smartcd1c8302011-10-10 21:33:25 -04004725 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4726 * @phba: pointer to lpfc hba data structure.
4727 *
4728 * This routine retrieves SLI4 device physical port name this PCI function
4729 * is attached to.
4730 *
4731 * Return codes
4732 * 0 - sucessful
4733 * otherwise - failed to retrieve physical port name
4734 **/
4735static int
4736lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
4737{
4738 LPFC_MBOXQ_t *mboxq;
James Smartcd1c8302011-10-10 21:33:25 -04004739 struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
4740 struct lpfc_controller_attribute *cntl_attr;
4741 struct lpfc_mbx_get_port_name *get_port_name;
4742 void *virtaddr = NULL;
4743 uint32_t alloclen, reqlen;
4744 uint32_t shdr_status, shdr_add_status;
4745 union lpfc_sli4_cfg_shdr *shdr;
4746 char cport_name = 0;
4747 int rc;
4748
4749 /* We assume nothing at this point */
4750 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4751 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_NON;
4752
4753 mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4754 if (!mboxq)
4755 return -ENOMEM;
James Smartcd1c8302011-10-10 21:33:25 -04004756 /* obtain link type and link number via READ_CONFIG */
James Smartff78d8f2011-12-13 13:21:35 -05004757 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
4758 lpfc_sli4_read_config(phba);
4759 if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
4760 goto retrieve_ppname;
James Smartcd1c8302011-10-10 21:33:25 -04004761
4762 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4763 reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
4764 alloclen = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4765 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES, reqlen,
4766 LPFC_SLI4_MBX_NEMBED);
4767 if (alloclen < reqlen) {
4768 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
4769 "3084 Allocated DMA memory size (%d) is "
4770 "less than the requested DMA memory size "
4771 "(%d)\n", alloclen, reqlen);
4772 rc = -ENOMEM;
4773 goto out_free_mboxq;
4774 }
4775 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4776 virtaddr = mboxq->sge_array->addr[0];
4777 mbx_cntl_attr = (struct lpfc_mbx_get_cntl_attributes *)virtaddr;
4778 shdr = &mbx_cntl_attr->cfg_shdr;
4779 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4780 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4781 if (shdr_status || shdr_add_status || rc) {
4782 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4783 "3085 Mailbox x%x (x%x/x%x) failed, "
4784 "rc:x%x, status:x%x, add_status:x%x\n",
4785 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4786 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4787 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4788 rc, shdr_status, shdr_add_status);
4789 rc = -ENXIO;
4790 goto out_free_mboxq;
4791 }
4792 cntl_attr = &mbx_cntl_attr->cntl_attr;
4793 phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
4794 phba->sli4_hba.lnk_info.lnk_tp =
4795 bf_get(lpfc_cntl_attr_lnk_type, cntl_attr);
4796 phba->sli4_hba.lnk_info.lnk_no =
4797 bf_get(lpfc_cntl_attr_lnk_numb, cntl_attr);
4798 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4799 "3086 lnk_type:%d, lnk_numb:%d\n",
4800 phba->sli4_hba.lnk_info.lnk_tp,
4801 phba->sli4_hba.lnk_info.lnk_no);
4802
4803retrieve_ppname:
4804 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_COMMON,
4805 LPFC_MBOX_OPCODE_GET_PORT_NAME,
4806 sizeof(struct lpfc_mbx_get_port_name) -
4807 sizeof(struct lpfc_sli4_cfg_mhdr),
4808 LPFC_SLI4_MBX_EMBED);
4809 get_port_name = &mboxq->u.mqe.un.get_port_name;
4810 shdr = (union lpfc_sli4_cfg_shdr *)&get_port_name->header.cfg_shdr;
4811 bf_set(lpfc_mbox_hdr_version, &shdr->request, LPFC_OPCODE_VERSION_1);
4812 bf_set(lpfc_mbx_get_port_name_lnk_type, &get_port_name->u.request,
4813 phba->sli4_hba.lnk_info.lnk_tp);
4814 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4815 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
4816 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
4817 if (shdr_status || shdr_add_status || rc) {
4818 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
4819 "3087 Mailbox x%x (x%x/x%x) failed: "
4820 "rc:x%x, status:x%x, add_status:x%x\n",
4821 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
4822 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
4823 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
4824 rc, shdr_status, shdr_add_status);
4825 rc = -ENXIO;
4826 goto out_free_mboxq;
4827 }
4828 switch (phba->sli4_hba.lnk_info.lnk_no) {
4829 case LPFC_LINK_NUMBER_0:
4830 cport_name = bf_get(lpfc_mbx_get_port_name_name0,
4831 &get_port_name->u.response);
4832 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4833 break;
4834 case LPFC_LINK_NUMBER_1:
4835 cport_name = bf_get(lpfc_mbx_get_port_name_name1,
4836 &get_port_name->u.response);
4837 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4838 break;
4839 case LPFC_LINK_NUMBER_2:
4840 cport_name = bf_get(lpfc_mbx_get_port_name_name2,
4841 &get_port_name->u.response);
4842 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4843 break;
4844 case LPFC_LINK_NUMBER_3:
4845 cport_name = bf_get(lpfc_mbx_get_port_name_name3,
4846 &get_port_name->u.response);
4847 phba->sli4_hba.pport_name_sta = LPFC_SLI4_PPNAME_GET;
4848 break;
4849 default:
4850 break;
4851 }
4852
4853 if (phba->sli4_hba.pport_name_sta == LPFC_SLI4_PPNAME_GET) {
4854 phba->Port[0] = cport_name;
4855 phba->Port[1] = '\0';
4856 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
4857 "3091 SLI get port name: %s\n", phba->Port);
4858 }
4859
4860out_free_mboxq:
4861 if (rc != MBX_TIMEOUT) {
4862 if (bf_get(lpfc_mqe_command, &mboxq->u.mqe) == MBX_SLI4_CONFIG)
4863 lpfc_sli4_mbox_cmd_free(phba, mboxq);
4864 else
4865 mempool_free(mboxq, phba->mbox_mem_pool);
4866 }
4867 return rc;
4868}
4869
4870/**
James Smartda0436e2009-05-22 14:51:39 -04004871 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4872 * @phba: pointer to lpfc hba data structure.
4873 *
4874 * This routine is called to explicitly arm the SLI4 device's completion and
4875 * event queues
4876 **/
4877static void
4878lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4879{
4880 uint8_t fcp_eqidx;
4881
4882 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4883 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smart05580562011-05-24 11:40:48 -04004884 fcp_eqidx = 0;
James Smart2e90f4b2011-12-13 13:22:37 -05004885 if (phba->sli4_hba.fcp_cq) {
4886 do
4887 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4888 LPFC_QUEUE_REARM);
4889 while (++fcp_eqidx < phba->cfg_fcp_eq_count);
4890 }
James Smartda0436e2009-05-22 14:51:39 -04004891 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
James Smart2e90f4b2011-12-13 13:22:37 -05004892 if (phba->sli4_hba.fp_eq) {
4893 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
4894 fcp_eqidx++)
4895 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4896 LPFC_QUEUE_REARM);
4897 }
James Smartda0436e2009-05-22 14:51:39 -04004898}
4899
4900/**
James Smart6d368e52011-05-24 11:44:12 -04004901 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4902 * @phba: Pointer to HBA context object.
4903 * @type: The resource extent type.
James Smartb76f2dc2011-07-22 18:37:42 -04004904 * @extnt_count: buffer to hold port available extent count.
4905 * @extnt_size: buffer to hold element count per extent.
James Smart6d368e52011-05-24 11:44:12 -04004906 *
James Smartb76f2dc2011-07-22 18:37:42 -04004907 * This function calls the port and retrievs the number of available
4908 * extents and their size for a particular extent type.
4909 *
4910 * Returns: 0 if successful. Nonzero otherwise.
James Smart6d368e52011-05-24 11:44:12 -04004911 **/
James Smartb76f2dc2011-07-22 18:37:42 -04004912int
James Smart6d368e52011-05-24 11:44:12 -04004913lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type,
4914 uint16_t *extnt_count, uint16_t *extnt_size)
4915{
4916 int rc = 0;
4917 uint32_t length;
4918 uint32_t mbox_tmo;
4919 struct lpfc_mbx_get_rsrc_extent_info *rsrc_info;
4920 LPFC_MBOXQ_t *mbox;
4921
4922 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4923 if (!mbox)
4924 return -ENOMEM;
4925
4926 /* Find out how many extents are available for this resource type */
4927 length = (sizeof(struct lpfc_mbx_get_rsrc_extent_info) -
4928 sizeof(struct lpfc_sli4_cfg_mhdr));
4929 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
4930 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO,
4931 length, LPFC_SLI4_MBX_EMBED);
4932
4933 /* Send an extents count of 0 - the GET doesn't use it. */
4934 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
4935 LPFC_SLI4_MBX_EMBED);
4936 if (unlikely(rc)) {
4937 rc = -EIO;
4938 goto err_exit;
4939 }
4940
4941 if (!phba->sli4_hba.intr_enable)
4942 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
4943 else {
James Smarta183a152011-10-10 21:32:43 -04004944 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04004945 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
4946 }
4947 if (unlikely(rc)) {
4948 rc = -EIO;
4949 goto err_exit;
4950 }
4951
4952 rsrc_info = &mbox->u.mqe.un.rsrc_extent_info;
4953 if (bf_get(lpfc_mbox_hdr_status,
4954 &rsrc_info->header.cfg_shdr.response)) {
4955 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
4956 "2930 Failed to get resource extents "
4957 "Status 0x%x Add'l Status 0x%x\n",
4958 bf_get(lpfc_mbox_hdr_status,
4959 &rsrc_info->header.cfg_shdr.response),
4960 bf_get(lpfc_mbox_hdr_add_status,
4961 &rsrc_info->header.cfg_shdr.response));
4962 rc = -EIO;
4963 goto err_exit;
4964 }
4965
4966 *extnt_count = bf_get(lpfc_mbx_get_rsrc_extent_info_cnt,
4967 &rsrc_info->u.rsp);
4968 *extnt_size = bf_get(lpfc_mbx_get_rsrc_extent_info_size,
4969 &rsrc_info->u.rsp);
4970 err_exit:
4971 mempool_free(mbox, phba->mbox_mem_pool);
4972 return rc;
4973}
4974
4975/**
4976 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
4977 * @phba: Pointer to HBA context object.
4978 * @type: The extent type to check.
4979 *
4980 * This function reads the current available extents from the port and checks
4981 * if the extent count or extent size has changed since the last access.
4982 * Callers use this routine post port reset to understand if there is a
4983 * extent reprovisioning requirement.
4984 *
4985 * Returns:
4986 * -Error: error indicates problem.
4987 * 1: Extent count or size has changed.
4988 * 0: No changes.
4989 **/
4990static int
4991lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba *phba, uint16_t type)
4992{
4993 uint16_t curr_ext_cnt, rsrc_ext_cnt;
4994 uint16_t size_diff, rsrc_ext_size;
4995 int rc = 0;
4996 struct lpfc_rsrc_blks *rsrc_entry;
4997 struct list_head *rsrc_blk_list = NULL;
4998
4999 size_diff = 0;
5000 curr_ext_cnt = 0;
5001 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5002 &rsrc_ext_cnt,
5003 &rsrc_ext_size);
5004 if (unlikely(rc))
5005 return -EIO;
5006
5007 switch (type) {
5008 case LPFC_RSC_TYPE_FCOE_RPI:
5009 rsrc_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5010 break;
5011 case LPFC_RSC_TYPE_FCOE_VPI:
5012 rsrc_blk_list = &phba->lpfc_vpi_blk_list;
5013 break;
5014 case LPFC_RSC_TYPE_FCOE_XRI:
5015 rsrc_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5016 break;
5017 case LPFC_RSC_TYPE_FCOE_VFI:
5018 rsrc_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5019 break;
5020 default:
5021 break;
5022 }
5023
5024 list_for_each_entry(rsrc_entry, rsrc_blk_list, list) {
5025 curr_ext_cnt++;
5026 if (rsrc_entry->rsrc_size != rsrc_ext_size)
5027 size_diff++;
5028 }
5029
5030 if (curr_ext_cnt != rsrc_ext_cnt || size_diff != 0)
5031 rc = 1;
5032
5033 return rc;
5034}
5035
5036/**
5037 * lpfc_sli4_cfg_post_extnts -
5038 * @phba: Pointer to HBA context object.
5039 * @extnt_cnt - number of available extents.
5040 * @type - the extent type (rpi, xri, vfi, vpi).
5041 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5042 * @mbox - pointer to the caller's allocated mailbox structure.
5043 *
5044 * This function executes the extents allocation request. It also
5045 * takes care of the amount of memory needed to allocate or get the
5046 * allocated extents. It is the caller's responsibility to evaluate
5047 * the response.
5048 *
5049 * Returns:
5050 * -Error: Error value describes the condition found.
5051 * 0: if successful
5052 **/
5053static int
5054lpfc_sli4_cfg_post_extnts(struct lpfc_hba *phba, uint16_t *extnt_cnt,
5055 uint16_t type, bool *emb, LPFC_MBOXQ_t *mbox)
5056{
5057 int rc = 0;
5058 uint32_t req_len;
5059 uint32_t emb_len;
5060 uint32_t alloc_len, mbox_tmo;
5061
5062 /* Calculate the total requested length of the dma memory */
5063 req_len = *extnt_cnt * sizeof(uint16_t);
5064
5065 /*
5066 * Calculate the size of an embedded mailbox. The uint32_t
5067 * accounts for extents-specific word.
5068 */
5069 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5070 sizeof(uint32_t);
5071
5072 /*
5073 * Presume the allocation and response will fit into an embedded
5074 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5075 */
5076 *emb = LPFC_SLI4_MBX_EMBED;
5077 if (req_len > emb_len) {
5078 req_len = *extnt_cnt * sizeof(uint16_t) +
5079 sizeof(union lpfc_sli4_cfg_shdr) +
5080 sizeof(uint32_t);
5081 *emb = LPFC_SLI4_MBX_NEMBED;
5082 }
5083
5084 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5085 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT,
5086 req_len, *emb);
5087 if (alloc_len < req_len) {
5088 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartb76f2dc2011-07-22 18:37:42 -04005089 "2982 Allocated DMA memory size (x%x) is "
James Smart6d368e52011-05-24 11:44:12 -04005090 "less than the requested DMA memory "
5091 "size (x%x)\n", alloc_len, req_len);
5092 return -ENOMEM;
5093 }
5094 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, *extnt_cnt, type, *emb);
5095 if (unlikely(rc))
5096 return -EIO;
5097
5098 if (!phba->sli4_hba.intr_enable)
5099 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5100 else {
James Smarta183a152011-10-10 21:32:43 -04005101 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005102 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5103 }
5104
5105 if (unlikely(rc))
5106 rc = -EIO;
5107 return rc;
5108}
5109
5110/**
5111 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5112 * @phba: Pointer to HBA context object.
5113 * @type: The resource extent type to allocate.
5114 *
5115 * This function allocates the number of elements for the specified
5116 * resource type.
5117 **/
5118static int
5119lpfc_sli4_alloc_extent(struct lpfc_hba *phba, uint16_t type)
5120{
5121 bool emb = false;
5122 uint16_t rsrc_id_cnt, rsrc_cnt, rsrc_size;
5123 uint16_t rsrc_id, rsrc_start, j, k;
5124 uint16_t *ids;
5125 int i, rc;
5126 unsigned long longs;
5127 unsigned long *bmask;
5128 struct lpfc_rsrc_blks *rsrc_blks;
5129 LPFC_MBOXQ_t *mbox;
5130 uint32_t length;
5131 struct lpfc_id_range *id_array = NULL;
5132 void *virtaddr = NULL;
5133 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5134 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5135 struct list_head *ext_blk_list;
5136
5137 rc = lpfc_sli4_get_avail_extnt_rsrc(phba, type,
5138 &rsrc_cnt,
5139 &rsrc_size);
5140 if (unlikely(rc))
5141 return -EIO;
5142
5143 if ((rsrc_cnt == 0) || (rsrc_size == 0)) {
5144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5145 "3009 No available Resource Extents "
5146 "for resource type 0x%x: Count: 0x%x, "
5147 "Size 0x%x\n", type, rsrc_cnt,
5148 rsrc_size);
5149 return -ENOMEM;
5150 }
5151
5152 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_INIT,
5153 "2903 Available Resource Extents "
5154 "for resource type 0x%x: Count: 0x%x, "
5155 "Size 0x%x\n", type, rsrc_cnt,
5156 rsrc_size);
5157
5158 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5159 if (!mbox)
5160 return -ENOMEM;
5161
5162 rc = lpfc_sli4_cfg_post_extnts(phba, &rsrc_cnt, type, &emb, mbox);
5163 if (unlikely(rc)) {
5164 rc = -EIO;
5165 goto err_exit;
5166 }
5167
5168 /*
5169 * Figure out where the response is located. Then get local pointers
5170 * to the response data. The port does not guarantee to respond to
5171 * all extents counts request so update the local variable with the
5172 * allocated count from the port.
5173 */
5174 if (emb == LPFC_SLI4_MBX_EMBED) {
5175 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5176 id_array = &rsrc_ext->u.rsp.id[0];
5177 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5178 } else {
5179 virtaddr = mbox->sge_array->addr[0];
5180 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5181 rsrc_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5182 id_array = &n_rsrc->id;
5183 }
5184
5185 longs = ((rsrc_cnt * rsrc_size) + BITS_PER_LONG - 1) / BITS_PER_LONG;
5186 rsrc_id_cnt = rsrc_cnt * rsrc_size;
5187
5188 /*
5189 * Based on the resource size and count, correct the base and max
5190 * resource values.
5191 */
5192 length = sizeof(struct lpfc_rsrc_blks);
5193 switch (type) {
5194 case LPFC_RSC_TYPE_FCOE_RPI:
5195 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5196 sizeof(unsigned long),
5197 GFP_KERNEL);
5198 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5199 rc = -ENOMEM;
5200 goto err_exit;
5201 }
5202 phba->sli4_hba.rpi_ids = kzalloc(rsrc_id_cnt *
5203 sizeof(uint16_t),
5204 GFP_KERNEL);
5205 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5206 kfree(phba->sli4_hba.rpi_bmask);
5207 rc = -ENOMEM;
5208 goto err_exit;
5209 }
5210
5211 /*
5212 * The next_rpi was initialized with the maximum available
5213 * count but the port may allocate a smaller number. Catch
5214 * that case and update the next_rpi.
5215 */
5216 phba->sli4_hba.next_rpi = rsrc_id_cnt;
5217
5218 /* Initialize local ptrs for common extent processing later. */
5219 bmask = phba->sli4_hba.rpi_bmask;
5220 ids = phba->sli4_hba.rpi_ids;
5221 ext_blk_list = &phba->sli4_hba.lpfc_rpi_blk_list;
5222 break;
5223 case LPFC_RSC_TYPE_FCOE_VPI:
5224 phba->vpi_bmask = kzalloc(longs *
5225 sizeof(unsigned long),
5226 GFP_KERNEL);
5227 if (unlikely(!phba->vpi_bmask)) {
5228 rc = -ENOMEM;
5229 goto err_exit;
5230 }
5231 phba->vpi_ids = kzalloc(rsrc_id_cnt *
5232 sizeof(uint16_t),
5233 GFP_KERNEL);
5234 if (unlikely(!phba->vpi_ids)) {
5235 kfree(phba->vpi_bmask);
5236 rc = -ENOMEM;
5237 goto err_exit;
5238 }
5239
5240 /* Initialize local ptrs for common extent processing later. */
5241 bmask = phba->vpi_bmask;
5242 ids = phba->vpi_ids;
5243 ext_blk_list = &phba->lpfc_vpi_blk_list;
5244 break;
5245 case LPFC_RSC_TYPE_FCOE_XRI:
5246 phba->sli4_hba.xri_bmask = kzalloc(longs *
5247 sizeof(unsigned long),
5248 GFP_KERNEL);
5249 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5250 rc = -ENOMEM;
5251 goto err_exit;
5252 }
5253 phba->sli4_hba.xri_ids = kzalloc(rsrc_id_cnt *
5254 sizeof(uint16_t),
5255 GFP_KERNEL);
5256 if (unlikely(!phba->sli4_hba.xri_ids)) {
5257 kfree(phba->sli4_hba.xri_bmask);
5258 rc = -ENOMEM;
5259 goto err_exit;
5260 }
5261
5262 /* Initialize local ptrs for common extent processing later. */
5263 bmask = phba->sli4_hba.xri_bmask;
5264 ids = phba->sli4_hba.xri_ids;
5265 ext_blk_list = &phba->sli4_hba.lpfc_xri_blk_list;
5266 break;
5267 case LPFC_RSC_TYPE_FCOE_VFI:
5268 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5269 sizeof(unsigned long),
5270 GFP_KERNEL);
5271 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5272 rc = -ENOMEM;
5273 goto err_exit;
5274 }
5275 phba->sli4_hba.vfi_ids = kzalloc(rsrc_id_cnt *
5276 sizeof(uint16_t),
5277 GFP_KERNEL);
5278 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5279 kfree(phba->sli4_hba.vfi_bmask);
5280 rc = -ENOMEM;
5281 goto err_exit;
5282 }
5283
5284 /* Initialize local ptrs for common extent processing later. */
5285 bmask = phba->sli4_hba.vfi_bmask;
5286 ids = phba->sli4_hba.vfi_ids;
5287 ext_blk_list = &phba->sli4_hba.lpfc_vfi_blk_list;
5288 break;
5289 default:
5290 /* Unsupported Opcode. Fail call. */
5291 id_array = NULL;
5292 bmask = NULL;
5293 ids = NULL;
5294 ext_blk_list = NULL;
5295 goto err_exit;
5296 }
5297
5298 /*
5299 * Complete initializing the extent configuration with the
5300 * allocated ids assigned to this function. The bitmask serves
5301 * as an index into the array and manages the available ids. The
5302 * array just stores the ids communicated to the port via the wqes.
5303 */
5304 for (i = 0, j = 0, k = 0; i < rsrc_cnt; i++) {
5305 if ((i % 2) == 0)
5306 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_0,
5307 &id_array[k]);
5308 else
5309 rsrc_id = bf_get(lpfc_mbx_rsrc_id_word4_1,
5310 &id_array[k]);
5311
5312 rsrc_blks = kzalloc(length, GFP_KERNEL);
5313 if (unlikely(!rsrc_blks)) {
5314 rc = -ENOMEM;
5315 kfree(bmask);
5316 kfree(ids);
5317 goto err_exit;
5318 }
5319 rsrc_blks->rsrc_start = rsrc_id;
5320 rsrc_blks->rsrc_size = rsrc_size;
5321 list_add_tail(&rsrc_blks->list, ext_blk_list);
5322 rsrc_start = rsrc_id;
5323 if ((type == LPFC_RSC_TYPE_FCOE_XRI) && (j == 0))
5324 phba->sli4_hba.scsi_xri_start = rsrc_start +
5325 lpfc_sli4_get_els_iocb_cnt(phba);
5326
5327 while (rsrc_id < (rsrc_start + rsrc_size)) {
5328 ids[j] = rsrc_id;
5329 rsrc_id++;
5330 j++;
5331 }
5332 /* Entire word processed. Get next word.*/
5333 if ((i % 2) == 1)
5334 k++;
5335 }
5336 err_exit:
5337 lpfc_sli4_mbox_cmd_free(phba, mbox);
5338 return rc;
5339}
5340
5341/**
5342 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5343 * @phba: Pointer to HBA context object.
5344 * @type: the extent's type.
5345 *
5346 * This function deallocates all extents of a particular resource type.
5347 * SLI4 does not allow for deallocating a particular extent range. It
5348 * is the caller's responsibility to release all kernel memory resources.
5349 **/
5350static int
5351lpfc_sli4_dealloc_extent(struct lpfc_hba *phba, uint16_t type)
5352{
5353 int rc;
5354 uint32_t length, mbox_tmo = 0;
5355 LPFC_MBOXQ_t *mbox;
5356 struct lpfc_mbx_dealloc_rsrc_extents *dealloc_rsrc;
5357 struct lpfc_rsrc_blks *rsrc_blk, *rsrc_blk_next;
5358
5359 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5360 if (!mbox)
5361 return -ENOMEM;
5362
5363 /*
5364 * This function sends an embedded mailbox because it only sends the
5365 * the resource type. All extents of this type are released by the
5366 * port.
5367 */
5368 length = (sizeof(struct lpfc_mbx_dealloc_rsrc_extents) -
5369 sizeof(struct lpfc_sli4_cfg_mhdr));
5370 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5371 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT,
5372 length, LPFC_SLI4_MBX_EMBED);
5373
5374 /* Send an extents count of 0 - the dealloc doesn't use it. */
5375 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, 0, type,
5376 LPFC_SLI4_MBX_EMBED);
5377 if (unlikely(rc)) {
5378 rc = -EIO;
5379 goto out_free_mbox;
5380 }
5381 if (!phba->sli4_hba.intr_enable)
5382 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5383 else {
James Smarta183a152011-10-10 21:32:43 -04005384 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -04005385 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5386 }
5387 if (unlikely(rc)) {
5388 rc = -EIO;
5389 goto out_free_mbox;
5390 }
5391
5392 dealloc_rsrc = &mbox->u.mqe.un.dealloc_rsrc_extents;
5393 if (bf_get(lpfc_mbox_hdr_status,
5394 &dealloc_rsrc->header.cfg_shdr.response)) {
5395 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5396 "2919 Failed to release resource extents "
5397 "for type %d - Status 0x%x Add'l Status 0x%x. "
5398 "Resource memory not released.\n",
5399 type,
5400 bf_get(lpfc_mbox_hdr_status,
5401 &dealloc_rsrc->header.cfg_shdr.response),
5402 bf_get(lpfc_mbox_hdr_add_status,
5403 &dealloc_rsrc->header.cfg_shdr.response));
5404 rc = -EIO;
5405 goto out_free_mbox;
5406 }
5407
5408 /* Release kernel memory resources for the specific type. */
5409 switch (type) {
5410 case LPFC_RSC_TYPE_FCOE_VPI:
5411 kfree(phba->vpi_bmask);
5412 kfree(phba->vpi_ids);
5413 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5414 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5415 &phba->lpfc_vpi_blk_list, list) {
5416 list_del_init(&rsrc_blk->list);
5417 kfree(rsrc_blk);
5418 }
5419 break;
5420 case LPFC_RSC_TYPE_FCOE_XRI:
5421 kfree(phba->sli4_hba.xri_bmask);
5422 kfree(phba->sli4_hba.xri_ids);
5423 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5424 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5425 &phba->sli4_hba.lpfc_xri_blk_list, list) {
5426 list_del_init(&rsrc_blk->list);
5427 kfree(rsrc_blk);
5428 }
5429 break;
5430 case LPFC_RSC_TYPE_FCOE_VFI:
5431 kfree(phba->sli4_hba.vfi_bmask);
5432 kfree(phba->sli4_hba.vfi_ids);
5433 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5434 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5435 &phba->sli4_hba.lpfc_vfi_blk_list, list) {
5436 list_del_init(&rsrc_blk->list);
5437 kfree(rsrc_blk);
5438 }
5439 break;
5440 case LPFC_RSC_TYPE_FCOE_RPI:
5441 /* RPI bitmask and physical id array are cleaned up earlier. */
5442 list_for_each_entry_safe(rsrc_blk, rsrc_blk_next,
5443 &phba->sli4_hba.lpfc_rpi_blk_list, list) {
5444 list_del_init(&rsrc_blk->list);
5445 kfree(rsrc_blk);
5446 }
5447 break;
5448 default:
5449 break;
5450 }
5451
5452 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5453
5454 out_free_mbox:
5455 mempool_free(mbox, phba->mbox_mem_pool);
5456 return rc;
5457}
5458
5459/**
5460 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5461 * @phba: Pointer to HBA context object.
5462 *
5463 * This function allocates all SLI4 resource identifiers.
5464 **/
5465int
5466lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
5467{
5468 int i, rc, error = 0;
5469 uint16_t count, base;
5470 unsigned long longs;
5471
James Smartff78d8f2011-12-13 13:21:35 -05005472 if (!phba->sli4_hba.rpi_hdrs_in_use)
5473 phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart6d368e52011-05-24 11:44:12 -04005474 if (phba->sli4_hba.extents_in_use) {
5475 /*
5476 * The port supports resource extents. The XRI, VPI, VFI, RPI
5477 * resource extent count must be read and allocated before
5478 * provisioning the resource id arrays.
5479 */
5480 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
5481 LPFC_IDX_RSRC_RDY) {
5482 /*
5483 * Extent-based resources are set - the driver could
5484 * be in a port reset. Figure out if any corrective
5485 * actions need to be taken.
5486 */
5487 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5488 LPFC_RSC_TYPE_FCOE_VFI);
5489 if (rc != 0)
5490 error++;
5491 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5492 LPFC_RSC_TYPE_FCOE_VPI);
5493 if (rc != 0)
5494 error++;
5495 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5496 LPFC_RSC_TYPE_FCOE_XRI);
5497 if (rc != 0)
5498 error++;
5499 rc = lpfc_sli4_chk_avail_extnt_rsrc(phba,
5500 LPFC_RSC_TYPE_FCOE_RPI);
5501 if (rc != 0)
5502 error++;
5503
5504 /*
5505 * It's possible that the number of resources
5506 * provided to this port instance changed between
5507 * resets. Detect this condition and reallocate
5508 * resources. Otherwise, there is no action.
5509 */
5510 if (error) {
5511 lpfc_printf_log(phba, KERN_INFO,
5512 LOG_MBOX | LOG_INIT,
5513 "2931 Detected extent resource "
5514 "change. Reallocating all "
5515 "extents.\n");
5516 rc = lpfc_sli4_dealloc_extent(phba,
5517 LPFC_RSC_TYPE_FCOE_VFI);
5518 rc = lpfc_sli4_dealloc_extent(phba,
5519 LPFC_RSC_TYPE_FCOE_VPI);
5520 rc = lpfc_sli4_dealloc_extent(phba,
5521 LPFC_RSC_TYPE_FCOE_XRI);
5522 rc = lpfc_sli4_dealloc_extent(phba,
5523 LPFC_RSC_TYPE_FCOE_RPI);
5524 } else
5525 return 0;
5526 }
5527
5528 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5529 if (unlikely(rc))
5530 goto err_exit;
5531
5532 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5533 if (unlikely(rc))
5534 goto err_exit;
5535
5536 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5537 if (unlikely(rc))
5538 goto err_exit;
5539
5540 rc = lpfc_sli4_alloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5541 if (unlikely(rc))
5542 goto err_exit;
5543 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5544 LPFC_IDX_RSRC_RDY);
5545 return rc;
5546 } else {
5547 /*
5548 * The port does not support resource extents. The XRI, VPI,
5549 * VFI, RPI resource ids were determined from READ_CONFIG.
5550 * Just allocate the bitmasks and provision the resource id
5551 * arrays. If a port reset is active, the resources don't
5552 * need any action - just exit.
5553 */
5554 if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
James Smartff78d8f2011-12-13 13:21:35 -05005555 LPFC_IDX_RSRC_RDY) {
5556 lpfc_sli4_dealloc_resource_identifiers(phba);
5557 lpfc_sli4_remove_rpis(phba);
5558 }
James Smart6d368e52011-05-24 11:44:12 -04005559 /* RPIs. */
5560 count = phba->sli4_hba.max_cfg_param.max_rpi;
5561 base = phba->sli4_hba.max_cfg_param.rpi_base;
5562 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5563 phba->sli4_hba.rpi_bmask = kzalloc(longs *
5564 sizeof(unsigned long),
5565 GFP_KERNEL);
5566 if (unlikely(!phba->sli4_hba.rpi_bmask)) {
5567 rc = -ENOMEM;
5568 goto err_exit;
5569 }
5570 phba->sli4_hba.rpi_ids = kzalloc(count *
5571 sizeof(uint16_t),
5572 GFP_KERNEL);
5573 if (unlikely(!phba->sli4_hba.rpi_ids)) {
5574 rc = -ENOMEM;
5575 goto free_rpi_bmask;
5576 }
5577
5578 for (i = 0; i < count; i++)
5579 phba->sli4_hba.rpi_ids[i] = base + i;
5580
5581 /* VPIs. */
5582 count = phba->sli4_hba.max_cfg_param.max_vpi;
5583 base = phba->sli4_hba.max_cfg_param.vpi_base;
5584 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5585 phba->vpi_bmask = kzalloc(longs *
5586 sizeof(unsigned long),
5587 GFP_KERNEL);
5588 if (unlikely(!phba->vpi_bmask)) {
5589 rc = -ENOMEM;
5590 goto free_rpi_ids;
5591 }
5592 phba->vpi_ids = kzalloc(count *
5593 sizeof(uint16_t),
5594 GFP_KERNEL);
5595 if (unlikely(!phba->vpi_ids)) {
5596 rc = -ENOMEM;
5597 goto free_vpi_bmask;
5598 }
5599
5600 for (i = 0; i < count; i++)
5601 phba->vpi_ids[i] = base + i;
5602
5603 /* XRIs. */
5604 count = phba->sli4_hba.max_cfg_param.max_xri;
5605 base = phba->sli4_hba.max_cfg_param.xri_base;
5606 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5607 phba->sli4_hba.xri_bmask = kzalloc(longs *
5608 sizeof(unsigned long),
5609 GFP_KERNEL);
5610 if (unlikely(!phba->sli4_hba.xri_bmask)) {
5611 rc = -ENOMEM;
5612 goto free_vpi_ids;
5613 }
James Smart41899be2012-03-01 22:34:19 -05005614 phba->sli4_hba.max_cfg_param.xri_used = 0;
5615 phba->sli4_hba.xri_count = 0;
James Smart6d368e52011-05-24 11:44:12 -04005616 phba->sli4_hba.xri_ids = kzalloc(count *
5617 sizeof(uint16_t),
5618 GFP_KERNEL);
5619 if (unlikely(!phba->sli4_hba.xri_ids)) {
5620 rc = -ENOMEM;
5621 goto free_xri_bmask;
5622 }
5623
5624 for (i = 0; i < count; i++)
5625 phba->sli4_hba.xri_ids[i] = base + i;
5626
5627 /* VFIs. */
5628 count = phba->sli4_hba.max_cfg_param.max_vfi;
5629 base = phba->sli4_hba.max_cfg_param.vfi_base;
5630 longs = (count + BITS_PER_LONG - 1) / BITS_PER_LONG;
5631 phba->sli4_hba.vfi_bmask = kzalloc(longs *
5632 sizeof(unsigned long),
5633 GFP_KERNEL);
5634 if (unlikely(!phba->sli4_hba.vfi_bmask)) {
5635 rc = -ENOMEM;
5636 goto free_xri_ids;
5637 }
5638 phba->sli4_hba.vfi_ids = kzalloc(count *
5639 sizeof(uint16_t),
5640 GFP_KERNEL);
5641 if (unlikely(!phba->sli4_hba.vfi_ids)) {
5642 rc = -ENOMEM;
5643 goto free_vfi_bmask;
5644 }
5645
5646 for (i = 0; i < count; i++)
5647 phba->sli4_hba.vfi_ids[i] = base + i;
5648
5649 /*
5650 * Mark all resources ready. An HBA reset doesn't need
5651 * to reset the initialization.
5652 */
5653 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags,
5654 LPFC_IDX_RSRC_RDY);
5655 return 0;
5656 }
5657
5658 free_vfi_bmask:
5659 kfree(phba->sli4_hba.vfi_bmask);
5660 free_xri_ids:
5661 kfree(phba->sli4_hba.xri_ids);
5662 free_xri_bmask:
5663 kfree(phba->sli4_hba.xri_bmask);
5664 free_vpi_ids:
5665 kfree(phba->vpi_ids);
5666 free_vpi_bmask:
5667 kfree(phba->vpi_bmask);
5668 free_rpi_ids:
5669 kfree(phba->sli4_hba.rpi_ids);
5670 free_rpi_bmask:
5671 kfree(phba->sli4_hba.rpi_bmask);
5672 err_exit:
5673 return rc;
5674}
5675
5676/**
5677 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5678 * @phba: Pointer to HBA context object.
5679 *
5680 * This function allocates the number of elements for the specified
5681 * resource type.
5682 **/
5683int
5684lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba *phba)
5685{
5686 if (phba->sli4_hba.extents_in_use) {
5687 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VPI);
5688 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_RPI);
5689 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_XRI);
5690 lpfc_sli4_dealloc_extent(phba, LPFC_RSC_TYPE_FCOE_VFI);
5691 } else {
5692 kfree(phba->vpi_bmask);
5693 kfree(phba->vpi_ids);
5694 bf_set(lpfc_vpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5695 kfree(phba->sli4_hba.xri_bmask);
5696 kfree(phba->sli4_hba.xri_ids);
5697 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5698 kfree(phba->sli4_hba.vfi_bmask);
5699 kfree(phba->sli4_hba.vfi_ids);
5700 bf_set(lpfc_vfi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5701 bf_set(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
5702 }
5703
5704 return 0;
5705}
5706
5707/**
James Smartb76f2dc2011-07-22 18:37:42 -04005708 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5709 * @phba: Pointer to HBA context object.
5710 * @type: The resource extent type.
5711 * @extnt_count: buffer to hold port extent count response
5712 * @extnt_size: buffer to hold port extent size response.
5713 *
5714 * This function calls the port to read the host allocated extents
5715 * for a particular type.
5716 **/
5717int
5718lpfc_sli4_get_allocated_extnts(struct lpfc_hba *phba, uint16_t type,
5719 uint16_t *extnt_cnt, uint16_t *extnt_size)
5720{
5721 bool emb;
5722 int rc = 0;
5723 uint16_t curr_blks = 0;
5724 uint32_t req_len, emb_len;
5725 uint32_t alloc_len, mbox_tmo;
5726 struct list_head *blk_list_head;
5727 struct lpfc_rsrc_blks *rsrc_blk;
5728 LPFC_MBOXQ_t *mbox;
5729 void *virtaddr = NULL;
5730 struct lpfc_mbx_nembed_rsrc_extent *n_rsrc;
5731 struct lpfc_mbx_alloc_rsrc_extents *rsrc_ext;
5732 union lpfc_sli4_cfg_shdr *shdr;
5733
5734 switch (type) {
5735 case LPFC_RSC_TYPE_FCOE_VPI:
5736 blk_list_head = &phba->lpfc_vpi_blk_list;
5737 break;
5738 case LPFC_RSC_TYPE_FCOE_XRI:
5739 blk_list_head = &phba->sli4_hba.lpfc_xri_blk_list;
5740 break;
5741 case LPFC_RSC_TYPE_FCOE_VFI:
5742 blk_list_head = &phba->sli4_hba.lpfc_vfi_blk_list;
5743 break;
5744 case LPFC_RSC_TYPE_FCOE_RPI:
5745 blk_list_head = &phba->sli4_hba.lpfc_rpi_blk_list;
5746 break;
5747 default:
5748 return -EIO;
5749 }
5750
5751 /* Count the number of extents currently allocatd for this type. */
5752 list_for_each_entry(rsrc_blk, blk_list_head, list) {
5753 if (curr_blks == 0) {
5754 /*
5755 * The GET_ALLOCATED mailbox does not return the size,
5756 * just the count. The size should be just the size
5757 * stored in the current allocated block and all sizes
5758 * for an extent type are the same so set the return
5759 * value now.
5760 */
5761 *extnt_size = rsrc_blk->rsrc_size;
5762 }
5763 curr_blks++;
5764 }
5765
5766 /* Calculate the total requested length of the dma memory. */
5767 req_len = curr_blks * sizeof(uint16_t);
5768
5769 /*
5770 * Calculate the size of an embedded mailbox. The uint32_t
5771 * accounts for extents-specific word.
5772 */
5773 emb_len = sizeof(MAILBOX_t) - sizeof(struct mbox_header) -
5774 sizeof(uint32_t);
5775
5776 /*
5777 * Presume the allocation and response will fit into an embedded
5778 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5779 */
5780 emb = LPFC_SLI4_MBX_EMBED;
5781 req_len = emb_len;
5782 if (req_len > emb_len) {
5783 req_len = curr_blks * sizeof(uint16_t) +
5784 sizeof(union lpfc_sli4_cfg_shdr) +
5785 sizeof(uint32_t);
5786 emb = LPFC_SLI4_MBX_NEMBED;
5787 }
5788
5789 mbox = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5790 if (!mbox)
5791 return -ENOMEM;
5792 memset(mbox, 0, sizeof(LPFC_MBOXQ_t));
5793
5794 alloc_len = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
5795 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT,
5796 req_len, emb);
5797 if (alloc_len < req_len) {
5798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5799 "2983 Allocated DMA memory size (x%x) is "
5800 "less than the requested DMA memory "
5801 "size (x%x)\n", alloc_len, req_len);
5802 rc = -ENOMEM;
5803 goto err_exit;
5804 }
5805 rc = lpfc_sli4_mbox_rsrc_extent(phba, mbox, curr_blks, type, emb);
5806 if (unlikely(rc)) {
5807 rc = -EIO;
5808 goto err_exit;
5809 }
5810
5811 if (!phba->sli4_hba.intr_enable)
5812 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
5813 else {
James Smarta183a152011-10-10 21:32:43 -04005814 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smartb76f2dc2011-07-22 18:37:42 -04005815 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
5816 }
5817
5818 if (unlikely(rc)) {
5819 rc = -EIO;
5820 goto err_exit;
5821 }
5822
5823 /*
5824 * Figure out where the response is located. Then get local pointers
5825 * to the response data. The port does not guarantee to respond to
5826 * all extents counts request so update the local variable with the
5827 * allocated count from the port.
5828 */
5829 if (emb == LPFC_SLI4_MBX_EMBED) {
5830 rsrc_ext = &mbox->u.mqe.un.alloc_rsrc_extents;
5831 shdr = &rsrc_ext->header.cfg_shdr;
5832 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, &rsrc_ext->u.rsp);
5833 } else {
5834 virtaddr = mbox->sge_array->addr[0];
5835 n_rsrc = (struct lpfc_mbx_nembed_rsrc_extent *) virtaddr;
5836 shdr = &n_rsrc->cfg_shdr;
5837 *extnt_cnt = bf_get(lpfc_mbx_rsrc_cnt, n_rsrc);
5838 }
5839
5840 if (bf_get(lpfc_mbox_hdr_status, &shdr->response)) {
5841 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
5842 "2984 Failed to read allocated resources "
5843 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5844 type,
5845 bf_get(lpfc_mbox_hdr_status, &shdr->response),
5846 bf_get(lpfc_mbox_hdr_add_status, &shdr->response));
5847 rc = -EIO;
5848 goto err_exit;
5849 }
5850 err_exit:
5851 lpfc_sli4_mbox_cmd_free(phba, mbox);
5852 return rc;
5853}
5854
5855/**
James Smartda0436e2009-05-22 14:51:39 -04005856 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
5857 * @phba: Pointer to HBA context object.
5858 *
5859 * This function is the main SLI4 device intialization PCI function. This
5860 * function is called by the HBA intialization code, HBA reset code and
5861 * HBA error attention handler code. Caller is not required to hold any
5862 * locks.
5863 **/
5864int
5865lpfc_sli4_hba_setup(struct lpfc_hba *phba)
5866{
5867 int rc;
5868 LPFC_MBOXQ_t *mboxq;
5869 struct lpfc_mqe *mqe;
5870 uint8_t *vpd;
5871 uint32_t vpd_size;
5872 uint32_t ftr_rsp = 0;
5873 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
5874 struct lpfc_vport *vport = phba->pport;
5875 struct lpfc_dmabuf *mp;
5876
5877 /* Perform a PCI function reset to start from clean */
5878 rc = lpfc_pci_function_reset(phba);
5879 if (unlikely(rc))
5880 return -ENODEV;
5881
5882 /* Check the HBA Host Status Register for readyness */
5883 rc = lpfc_sli4_post_status_check(phba);
5884 if (unlikely(rc))
5885 return -ENODEV;
5886 else {
5887 spin_lock_irq(&phba->hbalock);
5888 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
5889 spin_unlock_irq(&phba->hbalock);
5890 }
5891
5892 /*
5893 * Allocate a single mailbox container for initializing the
5894 * port.
5895 */
5896 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
5897 if (!mboxq)
5898 return -ENOMEM;
5899
James Smartda0436e2009-05-22 14:51:39 -04005900 /* Issue READ_REV to collect vpd and FW information. */
James Smart49198b32010-04-06 15:04:33 -04005901 vpd_size = SLI4_PAGE_SIZE;
James Smartda0436e2009-05-22 14:51:39 -04005902 vpd = kzalloc(vpd_size, GFP_KERNEL);
5903 if (!vpd) {
5904 rc = -ENOMEM;
5905 goto out_free_mbox;
5906 }
5907
5908 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
James Smart76a95d72010-11-20 23:11:48 -05005909 if (unlikely(rc)) {
5910 kfree(vpd);
5911 goto out_free_mbox;
5912 }
James Smartda0436e2009-05-22 14:51:39 -04005913 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04005914 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
5915 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
James Smart76a95d72010-11-20 23:11:48 -05005916 phba->hba_flag |= HBA_FCOE_MODE;
5917 else
5918 phba->hba_flag &= ~HBA_FCOE_MODE;
James Smart45ed1192009-10-02 15:17:02 -04005919
5920 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
5921 LPFC_DCBX_CEE_MODE)
5922 phba->hba_flag |= HBA_FIP_SUPPORT;
5923 else
5924 phba->hba_flag &= ~HBA_FIP_SUPPORT;
5925
James Smartc31098c2011-04-16 11:03:33 -04005926 if (phba->sli_rev != LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04005927 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5928 "0376 READ_REV Error. SLI Level %d "
5929 "FCoE enabled %d\n",
James Smart76a95d72010-11-20 23:11:48 -05005930 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
James Smartda0436e2009-05-22 14:51:39 -04005931 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05005932 kfree(vpd);
5933 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04005934 }
James Smartcd1c8302011-10-10 21:33:25 -04005935
5936 /*
James Smartff78d8f2011-12-13 13:21:35 -05005937 * Continue initialization with default values even if driver failed
5938 * to read FCoE param config regions, only read parameters if the
5939 * board is FCoE
5940 */
5941 if (phba->hba_flag & HBA_FCOE_MODE &&
5942 lpfc_sli4_read_fcoe_params(phba))
5943 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
5944 "2570 Failed to read FCoE parameters\n");
5945
5946 /*
James Smartcd1c8302011-10-10 21:33:25 -04005947 * Retrieve sli4 device physical port name, failure of doing it
5948 * is considered as non-fatal.
5949 */
5950 rc = lpfc_sli4_retrieve_pport_name(phba);
5951 if (!rc)
5952 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5953 "3080 Successful retrieving SLI4 device "
5954 "physical port name: %s.\n", phba->Port);
5955
James Smartda0436e2009-05-22 14:51:39 -04005956 /*
5957 * Evaluate the read rev and vpd data. Populate the driver
5958 * state with the results. If this routine fails, the failure
5959 * is not fatal as the driver will use generic values.
5960 */
5961 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
5962 if (unlikely(!rc)) {
5963 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5964 "0377 Error %d parsing vpd. "
5965 "Using defaults.\n", rc);
5966 rc = 0;
5967 }
James Smart76a95d72010-11-20 23:11:48 -05005968 kfree(vpd);
James Smartda0436e2009-05-22 14:51:39 -04005969
James Smartf1126682009-06-10 17:22:44 -04005970 /* Save information as VPD data */
5971 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
5972 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
5973 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
5974 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
5975 &mqe->un.read_rev);
5976 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
5977 &mqe->un.read_rev);
5978 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
5979 &mqe->un.read_rev);
5980 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
5981 &mqe->un.read_rev);
5982 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
5983 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
5984 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
5985 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
5986 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
5987 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
5988 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5989 "(%d):0380 READ_REV Status x%x "
5990 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
5991 mboxq->vport ? mboxq->vport->vpi : 0,
5992 bf_get(lpfc_mqe_status, mqe),
5993 phba->vpd.rev.opFwName,
5994 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
5995 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04005996
5997 /*
5998 * Discover the port's supported feature set and match it against the
5999 * hosts requests.
6000 */
6001 lpfc_request_features(phba, mboxq);
6002 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6003 if (unlikely(rc)) {
6004 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006005 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006006 }
6007
6008 /*
6009 * The port must support FCP initiator mode as this is the
6010 * only mode running in the host.
6011 */
6012 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
6013 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6014 "0378 No support for fcpi mode.\n");
6015 ftr_rsp++;
6016 }
James Smartfedd3b72011-02-16 12:39:24 -05006017 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
6018 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
6019 else
6020 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
James Smartda0436e2009-05-22 14:51:39 -04006021 /*
6022 * If the port cannot support the host's requested features
6023 * then turn off the global config parameters to disable the
6024 * feature in the driver. This is not a fatal error.
6025 */
James Smartbf086112011-08-21 21:48:13 -04006026 phba->sli3_options &= ~LPFC_SLI3_BG_ENABLED;
6027 if (phba->cfg_enable_bg) {
6028 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs))
6029 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
6030 else
6031 ftr_rsp++;
6032 }
James Smartda0436e2009-05-22 14:51:39 -04006033
6034 if (phba->max_vpi && phba->cfg_enable_npiv &&
6035 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6036 ftr_rsp++;
6037
6038 if (ftr_rsp) {
6039 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
6040 "0379 Feature Mismatch Data: x%08x %08x "
6041 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
6042 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
6043 phba->cfg_enable_npiv, phba->max_vpi);
6044 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
6045 phba->cfg_enable_bg = 0;
6046 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
6047 phba->cfg_enable_npiv = 0;
6048 }
6049
6050 /* These SLI3 features are assumed in SLI4 */
6051 spin_lock_irq(&phba->hbalock);
6052 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
6053 spin_unlock_irq(&phba->hbalock);
6054
James Smart6d368e52011-05-24 11:44:12 -04006055 /*
6056 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6057 * calls depends on these resources to complete port setup.
6058 */
6059 rc = lpfc_sli4_alloc_resource_identifiers(phba);
6060 if (rc) {
6061 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6062 "2920 Failed to alloc Resource IDs "
6063 "rc = x%x\n", rc);
6064 goto out_free_mbox;
6065 }
James Smartff78d8f2011-12-13 13:21:35 -05006066 /* update physical xri mappings in the scsi buffers */
6067 lpfc_scsi_buf_update(phba);
James Smart6d368e52011-05-24 11:44:12 -04006068
James Smartda0436e2009-05-22 14:51:39 -04006069 /* Read the port's service parameters. */
James Smart9f1177a2010-02-26 14:12:57 -05006070 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
6071 if (rc) {
6072 phba->link_state = LPFC_HBA_ERROR;
6073 rc = -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -05006074 goto out_free_mbox;
James Smart9f1177a2010-02-26 14:12:57 -05006075 }
6076
James Smartda0436e2009-05-22 14:51:39 -04006077 mboxq->vport = vport;
6078 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6079 mp = (struct lpfc_dmabuf *) mboxq->context1;
6080 if (rc == MBX_SUCCESS) {
6081 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
6082 rc = 0;
6083 }
6084
6085 /*
6086 * This memory was allocated by the lpfc_read_sparam routine. Release
6087 * it to the mbuf pool.
6088 */
6089 lpfc_mbuf_free(phba, mp->virt, mp->phys);
6090 kfree(mp);
6091 mboxq->context1 = NULL;
6092 if (unlikely(rc)) {
6093 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6094 "0382 READ_SPARAM command failed "
6095 "status %d, mbxStatus x%x\n",
6096 rc, bf_get(lpfc_mqe_status, mqe));
6097 phba->link_state = LPFC_HBA_ERROR;
6098 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05006099 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006100 }
6101
James Smart05580562011-05-24 11:40:48 -04006102 lpfc_update_vport_wwn(vport);
James Smartda0436e2009-05-22 14:51:39 -04006103
6104 /* Update the fc_host data structures with new wwn. */
6105 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
6106 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
6107
6108 /* Register SGL pool to the device using non-embedded mailbox command */
James Smart6d368e52011-05-24 11:44:12 -04006109 if (!phba->sli4_hba.extents_in_use) {
6110 rc = lpfc_sli4_post_els_sgl_list(phba);
6111 if (unlikely(rc)) {
6112 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6113 "0582 Error %d during els sgl post "
6114 "operation\n", rc);
6115 rc = -ENODEV;
6116 goto out_free_mbox;
6117 }
6118 } else {
6119 rc = lpfc_sli4_post_els_sgl_list_ext(phba);
6120 if (unlikely(rc)) {
6121 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6122 "2560 Error %d during els sgl post "
6123 "operation\n", rc);
6124 rc = -ENODEV;
6125 goto out_free_mbox;
6126 }
James Smartda0436e2009-05-22 14:51:39 -04006127 }
6128
6129 /* Register SCSI SGL pool to the device */
6130 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
6131 if (unlikely(rc)) {
James Smart6d368e52011-05-24 11:44:12 -04006132 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04006133 "0383 Error %d during scsi sgl post "
6134 "operation\n", rc);
James Smartda0436e2009-05-22 14:51:39 -04006135 /* Some Scsi buffers were moved to the abort scsi list */
6136 /* A pci function reset will repost them */
6137 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05006138 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006139 }
6140
6141 /* Post the rpi header region to the device. */
6142 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
6143 if (unlikely(rc)) {
6144 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6145 "0393 Error %d during rpi post operation\n",
6146 rc);
6147 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05006148 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04006149 }
James Smart97f2ecf2012-03-01 22:35:23 -05006150 lpfc_sli4_node_prep(phba);
James Smartda0436e2009-05-22 14:51:39 -04006151
James Smart5350d872011-10-10 21:33:49 -04006152 /* Create all the SLI4 queues */
6153 rc = lpfc_sli4_queue_create(phba);
6154 if (rc) {
6155 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6156 "3089 Failed to allocate queues\n");
6157 rc = -ENODEV;
6158 goto out_stop_timers;
6159 }
James Smartda0436e2009-05-22 14:51:39 -04006160 /* Set up all the queues to the device */
6161 rc = lpfc_sli4_queue_setup(phba);
6162 if (unlikely(rc)) {
6163 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6164 "0381 Error %d during queue setup.\n ", rc);
James Smart5350d872011-10-10 21:33:49 -04006165 goto out_destroy_queue;
James Smartda0436e2009-05-22 14:51:39 -04006166 }
6167
6168 /* Arm the CQs and then EQs on device */
6169 lpfc_sli4_arm_cqeq_intr(phba);
6170
6171 /* Indicate device interrupt mode */
6172 phba->sli4_hba.intr_enable = 1;
6173
6174 /* Allow asynchronous mailbox command to go through */
6175 spin_lock_irq(&phba->hbalock);
6176 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6177 spin_unlock_irq(&phba->hbalock);
6178
6179 /* Post receive buffers to the device */
6180 lpfc_sli4_rb_setup(phba);
6181
James Smartfc2b9892010-02-26 14:15:29 -05006182 /* Reset HBA FCF states after HBA reset */
6183 phba->fcf.fcf_flag = 0;
6184 phba->fcf.current_rec.flag = 0;
6185
James Smartda0436e2009-05-22 14:51:39 -04006186 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04006187 mod_timer(&vport->els_tmofunc,
6188 jiffies + HZ * (phba->fc_ratov * 2));
James Smartda0436e2009-05-22 14:51:39 -04006189
6190 /* Start heart beat timer */
6191 mod_timer(&phba->hb_tmofunc,
6192 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
6193 phba->hb_outstanding = 0;
6194 phba->last_completion_time = jiffies;
6195
6196 /* Start error attention (ERATT) polling timer */
6197 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
6198
James Smart75baf692010-06-08 18:31:21 -04006199 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6200 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
6201 rc = pci_enable_pcie_error_reporting(phba->pcidev);
6202 if (!rc) {
6203 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6204 "2829 This device supports "
6205 "Advanced Error Reporting (AER)\n");
6206 spin_lock_irq(&phba->hbalock);
6207 phba->hba_flag |= HBA_AER_ENABLED;
6208 spin_unlock_irq(&phba->hbalock);
6209 } else {
6210 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
6211 "2830 This device does not support "
6212 "Advanced Error Reporting (AER)\n");
6213 phba->cfg_aer_support = 0;
6214 }
James Smart0a96e972011-07-22 18:37:28 -04006215 rc = 0;
James Smart75baf692010-06-08 18:31:21 -04006216 }
6217
James Smart76a95d72010-11-20 23:11:48 -05006218 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
6219 /*
6220 * The FC Port needs to register FCFI (index 0)
6221 */
6222 lpfc_reg_fcfi(phba, mboxq);
6223 mboxq->vport = phba->pport;
6224 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart9589b062011-04-16 11:03:17 -04006225 if (rc != MBX_SUCCESS)
James Smart76a95d72010-11-20 23:11:48 -05006226 goto out_unset_queue;
James Smart9589b062011-04-16 11:03:17 -04006227 rc = 0;
6228 phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
6229 &mboxq->u.mqe.un.reg_fcfi);
James Smart026abb82011-12-13 13:20:45 -05006230
6231 /* Check if the port is configured to be disabled */
6232 lpfc_sli_read_link_ste(phba);
James Smart76a95d72010-11-20 23:11:48 -05006233 }
James Smart026abb82011-12-13 13:20:45 -05006234
James Smartda0436e2009-05-22 14:51:39 -04006235 /*
6236 * The port is ready, set the host's link state to LINK_DOWN
6237 * in preparation for link interrupts.
6238 */
James Smartda0436e2009-05-22 14:51:39 -04006239 spin_lock_irq(&phba->hbalock);
6240 phba->link_state = LPFC_LINK_DOWN;
6241 spin_unlock_irq(&phba->hbalock);
James Smart026abb82011-12-13 13:20:45 -05006242 if (!(phba->hba_flag & HBA_FCOE_MODE) &&
6243 (phba->hba_flag & LINK_DISABLED)) {
6244 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6245 "3103 Adapter Link is disabled.\n");
6246 lpfc_down_link(phba, mboxq);
6247 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
6248 if (rc != MBX_SUCCESS) {
6249 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
6250 "3104 Adapter failed to issue "
6251 "DOWN_LINK mbox cmd, rc:x%x\n", rc);
6252 goto out_unset_queue;
6253 }
6254 } else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
James Smart1b511972011-12-13 13:23:09 -05006255 /* don't perform init_link on SLI4 FC port loopback test */
6256 if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
6257 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
6258 if (rc)
6259 goto out_unset_queue;
6260 }
James Smart5350d872011-10-10 21:33:49 -04006261 }
6262 mempool_free(mboxq, phba->mbox_mem_pool);
6263 return rc;
James Smart76a95d72010-11-20 23:11:48 -05006264out_unset_queue:
James Smartda0436e2009-05-22 14:51:39 -04006265 /* Unset all the queues set up in this routine when error out */
James Smart5350d872011-10-10 21:33:49 -04006266 lpfc_sli4_queue_unset(phba);
6267out_destroy_queue:
6268 lpfc_sli4_queue_destroy(phba);
James Smartda0436e2009-05-22 14:51:39 -04006269out_stop_timers:
James Smart5350d872011-10-10 21:33:49 -04006270 lpfc_stop_hba_timers(phba);
James Smartda0436e2009-05-22 14:51:39 -04006271out_free_mbox:
6272 mempool_free(mboxq, phba->mbox_mem_pool);
6273 return rc;
6274}
James Smarte59058c2008-08-24 21:49:00 -04006275
6276/**
James Smart3621a712009-04-06 18:47:14 -04006277 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04006278 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05006279 *
James Smarte59058c2008-08-24 21:49:00 -04006280 * This is the callback function for mailbox timer. The mailbox
6281 * timer is armed when a new mailbox command is issued and the timer
6282 * is deleted when the mailbox complete. The function is called by
6283 * the kernel timer code when a mailbox does not complete within
6284 * expected time. This function wakes up the worker thread to
6285 * process the mailbox timeout and returns. All the processing is
6286 * done by the worker thread function lpfc_mbox_timeout_handler.
6287 **/
dea31012005-04-17 16:05:31 -05006288void
6289lpfc_mbox_timeout(unsigned long ptr)
6290{
James Smart92d7f7b2007-06-17 19:56:38 -05006291 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05006292 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05006293 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05006294
James Smart2e0fef82007-06-17 19:56:36 -05006295 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05006296 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05006297 if (!tmo_posted)
6298 phba->pport->work_port_events |= WORKER_MBOX_TMO;
6299 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
6300
James Smart5e9d9b82008-06-14 22:52:53 -04006301 if (!tmo_posted)
6302 lpfc_worker_wake_up(phba);
6303 return;
dea31012005-04-17 16:05:31 -05006304}
6305
James Smarte59058c2008-08-24 21:49:00 -04006306
6307/**
James Smart3621a712009-04-06 18:47:14 -04006308 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04006309 * @phba: Pointer to HBA context object.
6310 *
6311 * This function is called from worker thread when a mailbox command times out.
6312 * The caller is not required to hold any locks. This function will reset the
6313 * HBA and recover all the pending commands.
6314 **/
dea31012005-04-17 16:05:31 -05006315void
6316lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
6317{
James Smart2e0fef82007-06-17 19:56:36 -05006318 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04006319 MAILBOX_t *mb = &pmbox->u.mb;
James Smart1dcb58e2007-04-25 09:51:30 -04006320 struct lpfc_sli *psli = &phba->sli;
6321 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05006322
James Smarta257bf92009-04-06 18:48:10 -04006323 /* Check the pmbox pointer first. There is a race condition
6324 * between the mbox timeout handler getting executed in the
6325 * worklist and the mailbox actually completing. When this
6326 * race condition occurs, the mbox_active will be NULL.
6327 */
6328 spin_lock_irq(&phba->hbalock);
6329 if (pmbox == NULL) {
6330 lpfc_printf_log(phba, KERN_WARNING,
6331 LOG_MBOX | LOG_SLI,
6332 "0353 Active Mailbox cleared - mailbox timeout "
6333 "exiting\n");
6334 spin_unlock_irq(&phba->hbalock);
6335 return;
6336 }
6337
dea31012005-04-17 16:05:31 -05006338 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05006339 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04006340 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05006341 mb->mbxCommand,
6342 phba->pport->port_state,
6343 phba->sli.sli_flag,
6344 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04006345 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006346
James Smart1dcb58e2007-04-25 09:51:30 -04006347 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6348 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
Lucas De Marchi25985ed2011-03-30 22:57:33 -03006349 * it to fail all outstanding SCSI IO.
James Smart1dcb58e2007-04-25 09:51:30 -04006350 */
James Smart2e0fef82007-06-17 19:56:36 -05006351 spin_lock_irq(&phba->pport->work_port_lock);
6352 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
6353 spin_unlock_irq(&phba->pport->work_port_lock);
6354 spin_lock_irq(&phba->hbalock);
6355 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04006356 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05006357 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04006358
6359 pring = &psli->ring[psli->fcp_ring];
6360 lpfc_sli_abort_iocb_ring(phba, pring);
6361
6362 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006363 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04006364
6365 /* Reset the HBA device */
6366 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05006367}
6368
James Smarte59058c2008-08-24 21:49:00 -04006369/**
James Smart3772a992009-05-22 14:50:54 -04006370 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04006371 * @phba: Pointer to HBA context object.
6372 * @pmbox: Pointer to mailbox object.
6373 * @flag: Flag indicating how the mailbox need to be processed.
6374 *
6375 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04006376 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6377 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04006378 * The mailbox command can be submitted in polling mode, in which case
6379 * this function will wait in a polling loop for the completion of the
6380 * mailbox.
6381 * If the mailbox is submitted in no_wait mode (not polling) the
6382 * function will submit the command and returns immediately without waiting
6383 * for the mailbox completion. The no_wait is supported only when HBA
6384 * is in SLI2/SLI3 mode - interrupts are enabled.
6385 * The SLI interface allows only one mailbox pending at a time. If the
6386 * mailbox is issued in polling mode and there is already a mailbox
6387 * pending, then the function will return an error. If the mailbox is issued
6388 * in NO_WAIT mode and there is a mailbox pending already, the function
6389 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6390 * The sli layer owns the mailbox object until the completion of mailbox
6391 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6392 * return codes the caller owns the mailbox command after the return of
6393 * the function.
6394 **/
James Smart3772a992009-05-22 14:50:54 -04006395static int
6396lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
6397 uint32_t flag)
dea31012005-04-17 16:05:31 -05006398{
dea31012005-04-17 16:05:31 -05006399 MAILBOX_t *mb;
James Smart2e0fef82007-06-17 19:56:36 -05006400 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006401 uint32_t status, evtctr;
James Smart9940b972011-03-11 16:06:12 -05006402 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05006403 int i;
James Smart09372822008-01-11 01:52:54 -05006404 unsigned long timeout;
dea31012005-04-17 16:05:31 -05006405 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04006406 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05006407 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04006408 int processing_queue = 0;
6409
6410 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6411 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04006412 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04006413 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04006414 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6415 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6416 return MBX_SUCCESS;
6417 }
James Smart58da1ff2008-04-07 10:15:56 -04006418 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04006419 pmbox = lpfc_mbox_get(phba);
6420 if (!pmbox) {
6421 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6422 return MBX_SUCCESS;
6423 }
6424 }
dea31012005-04-17 16:05:31 -05006425
James Smarted957682007-06-17 19:56:37 -05006426 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05006427 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05006428 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04006429 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05006430 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05006431 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04006432 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04006433 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05006434 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04006435 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05006436 }
6437 }
6438
Linas Vepstas8d63f372007-02-14 14:28:36 -06006439 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04006440 if (unlikely(pci_channel_offline(phba->pcidev))) {
6441 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6442 goto out_not_finished;
6443 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06006444
James Smarta257bf92009-04-06 18:48:10 -04006445 /* If HBA has a deferred error attention, fail the iocb. */
6446 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
6447 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6448 goto out_not_finished;
6449 }
6450
dea31012005-04-17 16:05:31 -05006451 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05006452
James Smart3772a992009-05-22 14:50:54 -04006453 mb = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05006454 status = MBX_SUCCESS;
6455
James Smart2e0fef82007-06-17 19:56:36 -05006456 if (phba->link_state == LPFC_HBA_ERROR) {
6457 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05006458
6459 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006460 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6461 "(%d):0311 Mailbox command x%x cannot "
6462 "issue Data: x%x x%x\n",
6463 pmbox->vport ? pmbox->vport->vpi : 0,
6464 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006465 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05006466 }
6467
James Smart9940b972011-03-11 16:06:12 -05006468 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT) {
6469 if (lpfc_readl(phba->HCregaddr, &hc_copy) ||
6470 !(hc_copy & HC_MBINT_ENA)) {
6471 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6472 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart3772a992009-05-22 14:50:54 -04006473 "(%d):2528 Mailbox command x%x cannot "
6474 "issue Data: x%x x%x\n",
6475 pmbox->vport ? pmbox->vport->vpi : 0,
6476 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart9940b972011-03-11 16:06:12 -05006477 goto out_not_finished;
6478 }
James Smart92908312006-03-07 15:04:13 -05006479 }
6480
dea31012005-04-17 16:05:31 -05006481 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6482 /* Polling for a mbox command when another one is already active
6483 * is not allowed in SLI. Also, the driver must have established
6484 * SLI2 mode to queue and process multiple mbox commands.
6485 */
6486
6487 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05006488 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006489
6490 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6492 "(%d):2529 Mailbox command x%x "
6493 "cannot issue Data: x%x x%x\n",
6494 pmbox->vport ? pmbox->vport->vpi : 0,
6495 pmbox->u.mb.mbxCommand,
6496 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006497 goto out_not_finished;
dea31012005-04-17 16:05:31 -05006498 }
6499
James Smart3772a992009-05-22 14:50:54 -04006500 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05006501 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006502 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006503 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6504 "(%d):2530 Mailbox command x%x "
6505 "cannot issue Data: x%x x%x\n",
6506 pmbox->vport ? pmbox->vport->vpi : 0,
6507 pmbox->u.mb.mbxCommand,
6508 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006509 goto out_not_finished;
dea31012005-04-17 16:05:31 -05006510 }
6511
dea31012005-04-17 16:05:31 -05006512 /* Another mailbox command is still being processed, queue this
6513 * command to be processed later.
6514 */
6515 lpfc_mbox_put(phba, pmbox);
6516
6517 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05006518 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04006519 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05006520 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05006521 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
6522 mb->mbxCommand, phba->pport->port_state,
6523 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05006524
6525 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05006526 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006527
James Smart858c9f62007-06-17 19:56:39 -05006528 if (pmbox->vport) {
6529 lpfc_debugfs_disc_trc(pmbox->vport,
6530 LPFC_DISC_TRC_MBOX_VPORT,
6531 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6532 (uint32_t)mb->mbxCommand,
6533 mb->un.varWords[0], mb->un.varWords[1]);
6534 }
6535 else {
6536 lpfc_debugfs_disc_trc(phba->pport,
6537 LPFC_DISC_TRC_MBOX,
6538 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6539 (uint32_t)mb->mbxCommand,
6540 mb->un.varWords[0], mb->un.varWords[1]);
6541 }
6542
James Smart2e0fef82007-06-17 19:56:36 -05006543 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05006544 }
6545
dea31012005-04-17 16:05:31 -05006546 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6547
6548 /* If we are not polling, we MUST be in SLI2 mode */
6549 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04006550 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Jamie Wellnitz41415862006-02-28 19:25:27 -05006551 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05006552 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05006553 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05006554 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04006555 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
6556 "(%d):2531 Mailbox command x%x "
6557 "cannot issue Data: x%x x%x\n",
6558 pmbox->vport ? pmbox->vport->vpi : 0,
6559 pmbox->u.mb.mbxCommand,
6560 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04006561 goto out_not_finished;
dea31012005-04-17 16:05:31 -05006562 }
6563 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04006564 mod_timer(&psli->mbox_tmo, (jiffies +
James Smarta183a152011-10-10 21:32:43 -04006565 (HZ * lpfc_mbox_tmo_val(phba, pmbox))));
dea31012005-04-17 16:05:31 -05006566 }
6567
6568 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05006569 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04006570 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05006571 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04006572 pmbox->vport ? pmbox->vport->vpi : 0,
James Smart92d7f7b2007-06-17 19:56:38 -05006573 mb->mbxCommand, phba->pport->port_state,
6574 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05006575
James Smart858c9f62007-06-17 19:56:39 -05006576 if (mb->mbxCommand != MBX_HEARTBEAT) {
6577 if (pmbox->vport) {
6578 lpfc_debugfs_disc_trc(pmbox->vport,
6579 LPFC_DISC_TRC_MBOX_VPORT,
6580 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6581 (uint32_t)mb->mbxCommand,
6582 mb->un.varWords[0], mb->un.varWords[1]);
6583 }
6584 else {
6585 lpfc_debugfs_disc_trc(phba->pport,
6586 LPFC_DISC_TRC_MBOX,
6587 "MBOX Send: cmd:x%x mb:x%x x%x",
6588 (uint32_t)mb->mbxCommand,
6589 mb->un.varWords[0], mb->un.varWords[1]);
6590 }
6591 }
6592
dea31012005-04-17 16:05:31 -05006593 psli->slistat.mbox_cmd++;
6594 evtctr = psli->slistat.mbox_event;
6595
6596 /* next set own bit for the adapter and copy over command word */
6597 mb->mbxOwner = OWN_CHIP;
6598
James Smart3772a992009-05-22 14:50:54 -04006599 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart7a470272010-03-15 11:25:20 -04006600 /* Populate mbox extension offset word. */
6601 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
6602 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6603 = (uint8_t *)phba->mbox_ext
6604 - (uint8_t *)phba->mbox;
6605 }
6606
6607 /* Copy the mailbox extension data */
6608 if (pmbox->in_ext_byte_len && pmbox->context2) {
6609 lpfc_sli_pcimem_bcopy(pmbox->context2,
6610 (uint8_t *)phba->mbox_ext,
6611 pmbox->in_ext_byte_len);
6612 }
6613 /* Copy command data to host SLIM area */
James Smart34b02dc2008-08-24 21:49:55 -04006614 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05006615 } else {
James Smart7a470272010-03-15 11:25:20 -04006616 /* Populate mbox extension offset word. */
6617 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
6618 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
6619 = MAILBOX_HBA_EXT_OFFSET;
6620
6621 /* Copy the mailbox extension data */
6622 if (pmbox->in_ext_byte_len && pmbox->context2) {
6623 lpfc_memcpy_to_slim(phba->MBslimaddr +
6624 MAILBOX_HBA_EXT_OFFSET,
6625 pmbox->context2, pmbox->in_ext_byte_len);
6626
6627 }
James Smart92908312006-03-07 15:04:13 -05006628 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05006629 /* copy command data into host mbox for cmpl */
James Smart34b02dc2008-08-24 21:49:55 -04006630 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05006631 }
6632
6633 /* First copy mbox command data to HBA SLIM, skip past first
6634 word */
6635 to_slim = phba->MBslimaddr + sizeof (uint32_t);
6636 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
6637 MAILBOX_CMD_SIZE - sizeof (uint32_t));
6638
6639 /* Next copy over first word, with mbxOwner set */
James Smart34b02dc2008-08-24 21:49:55 -04006640 ldata = *((uint32_t *)mb);
dea31012005-04-17 16:05:31 -05006641 to_slim = phba->MBslimaddr;
6642 writel(ldata, to_slim);
6643 readl(to_slim); /* flush */
6644
6645 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6646 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04006647 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05006648 }
6649 }
6650
6651 wmb();
dea31012005-04-17 16:05:31 -05006652
6653 switch (flag) {
6654 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05006655 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05006656 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05006657 /* Interrupt board to do it */
6658 writel(CA_MBATT, phba->CAregaddr);
6659 readl(phba->CAregaddr); /* flush */
6660 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05006661 break;
6662
6663 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05006664 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05006665 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05006666 /* Interrupt board to do it */
6667 writel(CA_MBATT, phba->CAregaddr);
6668 readl(phba->CAregaddr); /* flush */
6669
James Smart3772a992009-05-22 14:50:54 -04006670 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05006671 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04006672 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05006673 word0 = le32_to_cpu(word0);
6674 } else {
6675 /* First read mbox status word */
James Smart9940b972011-03-11 16:06:12 -05006676 if (lpfc_readl(phba->MBslimaddr, &word0)) {
6677 spin_unlock_irqrestore(&phba->hbalock,
6678 drvr_flag);
6679 goto out_not_finished;
6680 }
dea31012005-04-17 16:05:31 -05006681 }
6682
6683 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05006684 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6685 spin_unlock_irqrestore(&phba->hbalock,
6686 drvr_flag);
6687 goto out_not_finished;
6688 }
James Smarta183a152011-10-10 21:32:43 -04006689 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, pmbox) *
6690 1000) + jiffies;
James Smart09372822008-01-11 01:52:54 -05006691 i = 0;
dea31012005-04-17 16:05:31 -05006692 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05006693 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
6694 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05006695 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05006696 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05006697 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05006698 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05006699 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04006700 goto out_not_finished;
dea31012005-04-17 16:05:31 -05006701 }
6702
6703 /* Check if we took a mbox interrupt while we were
6704 polling */
6705 if (((word0 & OWN_CHIP) != OWN_CHIP)
6706 && (evtctr != psli->slistat.mbox_event))
6707 break;
6708
James Smart09372822008-01-11 01:52:54 -05006709 if (i++ > 10) {
6710 spin_unlock_irqrestore(&phba->hbalock,
6711 drvr_flag);
6712 msleep(1);
6713 spin_lock_irqsave(&phba->hbalock, drvr_flag);
6714 }
dea31012005-04-17 16:05:31 -05006715
James Smart3772a992009-05-22 14:50:54 -04006716 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05006717 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04006718 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05006719 word0 = le32_to_cpu(word0);
6720 if (mb->mbxCommand == MBX_CONFIG_PORT) {
6721 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04006722 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05006723 /* Check real SLIM for any errors */
6724 slimword0 = readl(phba->MBslimaddr);
6725 slimmb = (MAILBOX_t *) & slimword0;
6726 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
6727 && slimmb->mbxStatus) {
6728 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04006729 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05006730 word0 = slimword0;
6731 }
6732 }
6733 } else {
6734 /* First copy command data */
6735 word0 = readl(phba->MBslimaddr);
6736 }
6737 /* Read the HBA Host Attention Register */
James Smart9940b972011-03-11 16:06:12 -05006738 if (lpfc_readl(phba->HAregaddr, &ha_copy)) {
6739 spin_unlock_irqrestore(&phba->hbalock,
6740 drvr_flag);
6741 goto out_not_finished;
6742 }
dea31012005-04-17 16:05:31 -05006743 }
6744
James Smart3772a992009-05-22 14:50:54 -04006745 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05006746 /* copy results back to user */
James Smart34b02dc2008-08-24 21:49:55 -04006747 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04006748 /* Copy the mailbox extension data */
6749 if (pmbox->out_ext_byte_len && pmbox->context2) {
6750 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
6751 pmbox->context2,
6752 pmbox->out_ext_byte_len);
6753 }
dea31012005-04-17 16:05:31 -05006754 } else {
6755 /* First copy command data */
6756 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
6757 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04006758 /* Copy the mailbox extension data */
6759 if (pmbox->out_ext_byte_len && pmbox->context2) {
6760 lpfc_memcpy_from_slim(pmbox->context2,
6761 phba->MBslimaddr +
6762 MAILBOX_HBA_EXT_OFFSET,
6763 pmbox->out_ext_byte_len);
dea31012005-04-17 16:05:31 -05006764 }
6765 }
6766
6767 writel(HA_MBATT, phba->HAregaddr);
6768 readl(phba->HAregaddr); /* flush */
6769
6770 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6771 status = mb->mbxStatus;
6772 }
6773
James Smart2e0fef82007-06-17 19:56:36 -05006774 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
6775 return status;
James Smart58da1ff2008-04-07 10:15:56 -04006776
6777out_not_finished:
6778 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04006779 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04006780 lpfc_mbox_cmpl_put(phba, pmbox);
6781 }
6782 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05006783}
6784
James Smarte59058c2008-08-24 21:49:00 -04006785/**
James Smartf1126682009-06-10 17:22:44 -04006786 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
6787 * @phba: Pointer to HBA context object.
6788 *
6789 * The function blocks the posting of SLI4 asynchronous mailbox commands from
6790 * the driver internal pending mailbox queue. It will then try to wait out the
6791 * possible outstanding mailbox command before return.
6792 *
6793 * Returns:
6794 * 0 - the outstanding mailbox command completed; otherwise, the wait for
6795 * the outstanding mailbox command timed out.
6796 **/
6797static int
6798lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
6799{
6800 struct lpfc_sli *psli = &phba->sli;
James Smartf1126682009-06-10 17:22:44 -04006801 int rc = 0;
James Smarta183a152011-10-10 21:32:43 -04006802 unsigned long timeout = 0;
James Smartf1126682009-06-10 17:22:44 -04006803
6804 /* Mark the asynchronous mailbox command posting as blocked */
6805 spin_lock_irq(&phba->hbalock);
6806 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smartf1126682009-06-10 17:22:44 -04006807 /* Determine how long we might wait for the active mailbox
6808 * command to be gracefully completed by firmware.
6809 */
James Smarta183a152011-10-10 21:32:43 -04006810 if (phba->sli.mbox_active)
6811 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
6812 phba->sli.mbox_active) *
6813 1000) + jiffies;
6814 spin_unlock_irq(&phba->hbalock);
6815
James Smartf1126682009-06-10 17:22:44 -04006816 /* Wait for the outstnading mailbox command to complete */
6817 while (phba->sli.mbox_active) {
6818 /* Check active mailbox complete status every 2ms */
6819 msleep(2);
6820 if (time_after(jiffies, timeout)) {
6821 /* Timeout, marked the outstanding cmd not complete */
6822 rc = 1;
6823 break;
6824 }
6825 }
6826
6827 /* Can not cleanly block async mailbox command, fails it */
6828 if (rc) {
6829 spin_lock_irq(&phba->hbalock);
6830 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6831 spin_unlock_irq(&phba->hbalock);
6832 }
6833 return rc;
6834}
6835
6836/**
6837 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
6838 * @phba: Pointer to HBA context object.
6839 *
6840 * The function unblocks and resume posting of SLI4 asynchronous mailbox
6841 * commands from the driver internal pending mailbox queue. It makes sure
6842 * that there is no outstanding mailbox command before resuming posting
6843 * asynchronous mailbox commands. If, for any reason, there is outstanding
6844 * mailbox command, it will try to wait it out before resuming asynchronous
6845 * mailbox command posting.
6846 **/
6847static void
6848lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
6849{
6850 struct lpfc_sli *psli = &phba->sli;
6851
6852 spin_lock_irq(&phba->hbalock);
6853 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
6854 /* Asynchronous mailbox posting is not blocked, do nothing */
6855 spin_unlock_irq(&phba->hbalock);
6856 return;
6857 }
6858
6859 /* Outstanding synchronous mailbox command is guaranteed to be done,
6860 * successful or timeout, after timing-out the outstanding mailbox
6861 * command shall always be removed, so just unblock posting async
6862 * mailbox command and resume
6863 */
6864 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
6865 spin_unlock_irq(&phba->hbalock);
6866
6867 /* wake up worker thread to post asynchronlous mailbox command */
6868 lpfc_worker_wake_up(phba);
6869}
6870
6871/**
James Smartda0436e2009-05-22 14:51:39 -04006872 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
6873 * @phba: Pointer to HBA context object.
6874 * @mboxq: Pointer to mailbox object.
6875 *
6876 * The function posts a mailbox to the port. The mailbox is expected
6877 * to be comletely filled in and ready for the port to operate on it.
6878 * This routine executes a synchronous completion operation on the
6879 * mailbox by polling for its completion.
6880 *
6881 * The caller must not be holding any locks when calling this routine.
6882 *
6883 * Returns:
6884 * MBX_SUCCESS - mailbox posted successfully
6885 * Any of the MBX error values.
6886 **/
6887static int
6888lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
6889{
6890 int rc = MBX_SUCCESS;
6891 unsigned long iflag;
6892 uint32_t db_ready;
6893 uint32_t mcqe_status;
6894 uint32_t mbx_cmnd;
6895 unsigned long timeout;
6896 struct lpfc_sli *psli = &phba->sli;
6897 struct lpfc_mqe *mb = &mboxq->u.mqe;
6898 struct lpfc_bmbx_create *mbox_rgn;
6899 struct dma_address *dma_address;
6900 struct lpfc_register bmbx_reg;
6901
6902 /*
6903 * Only one mailbox can be active to the bootstrap mailbox region
6904 * at a time and there is no queueing provided.
6905 */
6906 spin_lock_irqsave(&phba->hbalock, iflag);
6907 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
6908 spin_unlock_irqrestore(&phba->hbalock, iflag);
6909 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04006910 "(%d):2532 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04006911 "cannot issue Data: x%x x%x\n",
6912 mboxq->vport ? mboxq->vport->vpi : 0,
6913 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04006914 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6915 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04006916 psli->sli_flag, MBX_POLL);
6917 return MBXERR_ERROR;
6918 }
6919 /* The server grabs the token and owns it until release */
6920 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
6921 phba->sli.mbox_active = mboxq;
6922 spin_unlock_irqrestore(&phba->hbalock, iflag);
6923
6924 /*
6925 * Initialize the bootstrap memory region to avoid stale data areas
6926 * in the mailbox post. Then copy the caller's mailbox contents to
6927 * the bmbx mailbox region.
6928 */
6929 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
6930 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
6931 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
6932 sizeof(struct lpfc_mqe));
6933
6934 /* Post the high mailbox dma address to the port and wait for ready. */
6935 dma_address = &phba->sli4_hba.bmbx.dma_address;
6936 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
6937
James Smarta183a152011-10-10 21:32:43 -04006938 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
James Smartda0436e2009-05-22 14:51:39 -04006939 * 1000) + jiffies;
6940 do {
6941 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
6942 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
6943 if (!db_ready)
6944 msleep(2);
6945
6946 if (time_after(jiffies, timeout)) {
6947 rc = MBXERR_ERROR;
6948 goto exit;
6949 }
6950 } while (!db_ready);
6951
6952 /* Post the low mailbox dma address to the port. */
6953 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
James Smarta183a152011-10-10 21:32:43 -04006954 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mboxq)
James Smartda0436e2009-05-22 14:51:39 -04006955 * 1000) + jiffies;
6956 do {
6957 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
6958 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
6959 if (!db_ready)
6960 msleep(2);
6961
6962 if (time_after(jiffies, timeout)) {
6963 rc = MBXERR_ERROR;
6964 goto exit;
6965 }
6966 } while (!db_ready);
6967
6968 /*
6969 * Read the CQ to ensure the mailbox has completed.
6970 * If so, update the mailbox status so that the upper layers
6971 * can complete the request normally.
6972 */
6973 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
6974 sizeof(struct lpfc_mqe));
6975 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
6976 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
6977 sizeof(struct lpfc_mcqe));
6978 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
James Smart05580562011-05-24 11:40:48 -04006979 /*
6980 * When the CQE status indicates a failure and the mailbox status
6981 * indicates success then copy the CQE status into the mailbox status
6982 * (and prefix it with x4000).
6983 */
James Smartda0436e2009-05-22 14:51:39 -04006984 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
James Smart05580562011-05-24 11:40:48 -04006985 if (bf_get(lpfc_mqe_status, mb) == MBX_SUCCESS)
6986 bf_set(lpfc_mqe_status, mb,
6987 (LPFC_MBX_ERROR_RANGE | mcqe_status));
James Smartda0436e2009-05-22 14:51:39 -04006988 rc = MBXERR_ERROR;
James Smartd7c47992010-06-08 18:31:54 -04006989 } else
6990 lpfc_sli4_swap_str(phba, mboxq);
James Smartda0436e2009-05-22 14:51:39 -04006991
6992 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04006993 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
James Smartda0436e2009-05-22 14:51:39 -04006994 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
6995 " x%x x%x CQ: x%x x%x x%x x%x\n",
James Smarta183a152011-10-10 21:32:43 -04006996 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
6997 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
6998 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04006999 bf_get(lpfc_mqe_status, mb),
7000 mb->un.mb_words[0], mb->un.mb_words[1],
7001 mb->un.mb_words[2], mb->un.mb_words[3],
7002 mb->un.mb_words[4], mb->un.mb_words[5],
7003 mb->un.mb_words[6], mb->un.mb_words[7],
7004 mb->un.mb_words[8], mb->un.mb_words[9],
7005 mb->un.mb_words[10], mb->un.mb_words[11],
7006 mb->un.mb_words[12], mboxq->mcqe.word0,
7007 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
7008 mboxq->mcqe.trailer);
7009exit:
7010 /* We are holding the token, no needed for lock when release */
7011 spin_lock_irqsave(&phba->hbalock, iflag);
7012 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7013 phba->sli.mbox_active = NULL;
7014 spin_unlock_irqrestore(&phba->hbalock, iflag);
7015 return rc;
7016}
7017
7018/**
7019 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7020 * @phba: Pointer to HBA context object.
7021 * @pmbox: Pointer to mailbox object.
7022 * @flag: Flag indicating how the mailbox need to be processed.
7023 *
7024 * This function is called by discovery code and HBA management code to submit
7025 * a mailbox command to firmware with SLI-4 interface spec.
7026 *
7027 * Return codes the caller owns the mailbox command after the return of the
7028 * function.
7029 **/
7030static int
7031lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
7032 uint32_t flag)
7033{
7034 struct lpfc_sli *psli = &phba->sli;
7035 unsigned long iflags;
7036 int rc;
7037
James Smartb76f2dc2011-07-22 18:37:42 -04007038 /* dump from issue mailbox command if setup */
7039 lpfc_idiag_mbxacc_dump_issue_mbox(phba, &mboxq->u.mb);
7040
James Smart8fa38512009-07-19 10:01:03 -04007041 rc = lpfc_mbox_dev_check(phba);
7042 if (unlikely(rc)) {
7043 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007044 "(%d):2544 Mailbox command x%x (x%x/x%x) "
James Smart8fa38512009-07-19 10:01:03 -04007045 "cannot issue Data: x%x x%x\n",
7046 mboxq->vport ? mboxq->vport->vpi : 0,
7047 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007048 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7049 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smart8fa38512009-07-19 10:01:03 -04007050 psli->sli_flag, flag);
7051 goto out_not_finished;
7052 }
7053
James Smartda0436e2009-05-22 14:51:39 -04007054 /* Detect polling mode and jump to a handler */
7055 if (!phba->sli4_hba.intr_enable) {
7056 if (flag == MBX_POLL)
7057 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7058 else
7059 rc = -EIO;
7060 if (rc != MBX_SUCCESS)
James Smart05580562011-05-24 11:40:48 -04007061 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smartda0436e2009-05-22 14:51:39 -04007062 "(%d):2541 Mailbox command x%x "
James Smarta183a152011-10-10 21:32:43 -04007063 "(x%x/x%x) cannot issue Data: "
7064 "x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04007065 mboxq->vport ? mboxq->vport->vpi : 0,
7066 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007067 lpfc_sli_config_mbox_subsys_get(phba,
7068 mboxq),
7069 lpfc_sli_config_mbox_opcode_get(phba,
7070 mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007071 psli->sli_flag, flag);
7072 return rc;
7073 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04007074 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
7075 "(%d):2542 Try to issue mailbox command "
James Smarta183a152011-10-10 21:32:43 -04007076 "x%x (x%x/x%x) synchronously ahead of async"
James Smartf1126682009-06-10 17:22:44 -04007077 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04007078 mboxq->vport ? mboxq->vport->vpi : 0,
7079 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007080 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7081 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007082 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04007083 /* Try to block the asynchronous mailbox posting */
7084 rc = lpfc_sli4_async_mbox_block(phba);
7085 if (!rc) {
7086 /* Successfully blocked, now issue sync mbox cmd */
7087 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
7088 if (rc != MBX_SUCCESS)
7089 lpfc_printf_log(phba, KERN_ERR,
James Smarta183a152011-10-10 21:32:43 -04007090 LOG_MBOX | LOG_SLI,
7091 "(%d):2597 Mailbox command "
7092 "x%x (x%x/x%x) cannot issue "
7093 "Data: x%x x%x\n",
7094 mboxq->vport ?
7095 mboxq->vport->vpi : 0,
7096 mboxq->u.mb.mbxCommand,
7097 lpfc_sli_config_mbox_subsys_get(phba,
7098 mboxq),
7099 lpfc_sli_config_mbox_opcode_get(phba,
7100 mboxq),
7101 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04007102 /* Unblock the async mailbox posting afterward */
7103 lpfc_sli4_async_mbox_unblock(phba);
7104 }
7105 return rc;
James Smartda0436e2009-05-22 14:51:39 -04007106 }
7107
7108 /* Now, interrupt mode asynchrous mailbox command */
7109 rc = lpfc_mbox_cmd_check(phba, mboxq);
7110 if (rc) {
7111 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007112 "(%d):2543 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007113 "cannot issue Data: x%x x%x\n",
7114 mboxq->vport ? mboxq->vport->vpi : 0,
7115 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007116 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7117 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007118 psli->sli_flag, flag);
7119 goto out_not_finished;
7120 }
James Smartda0436e2009-05-22 14:51:39 -04007121
7122 /* Put the mailbox command to the driver internal FIFO */
7123 psli->slistat.mbox_busy++;
7124 spin_lock_irqsave(&phba->hbalock, iflags);
7125 lpfc_mbox_put(phba, mboxq);
7126 spin_unlock_irqrestore(&phba->hbalock, iflags);
7127 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
7128 "(%d):0354 Mbox cmd issue - Enqueue Data: "
James Smarta183a152011-10-10 21:32:43 -04007129 "x%x (x%x/x%x) x%x x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04007130 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
7131 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
James Smarta183a152011-10-10 21:32:43 -04007132 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7133 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007134 phba->pport->port_state,
7135 psli->sli_flag, MBX_NOWAIT);
7136 /* Wake up worker thread to transport mailbox command from head */
7137 lpfc_worker_wake_up(phba);
7138
7139 return MBX_BUSY;
7140
7141out_not_finished:
7142 return MBX_NOT_FINISHED;
7143}
7144
7145/**
7146 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7147 * @phba: Pointer to HBA context object.
7148 *
7149 * This function is called by worker thread to send a mailbox command to
7150 * SLI4 HBA firmware.
7151 *
7152 **/
7153int
7154lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
7155{
7156 struct lpfc_sli *psli = &phba->sli;
7157 LPFC_MBOXQ_t *mboxq;
7158 int rc = MBX_SUCCESS;
7159 unsigned long iflags;
7160 struct lpfc_mqe *mqe;
7161 uint32_t mbx_cmnd;
7162
7163 /* Check interrupt mode before post async mailbox command */
7164 if (unlikely(!phba->sli4_hba.intr_enable))
7165 return MBX_NOT_FINISHED;
7166
7167 /* Check for mailbox command service token */
7168 spin_lock_irqsave(&phba->hbalock, iflags);
7169 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
7170 spin_unlock_irqrestore(&phba->hbalock, iflags);
7171 return MBX_NOT_FINISHED;
7172 }
7173 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
7174 spin_unlock_irqrestore(&phba->hbalock, iflags);
7175 return MBX_NOT_FINISHED;
7176 }
7177 if (unlikely(phba->sli.mbox_active)) {
7178 spin_unlock_irqrestore(&phba->hbalock, iflags);
7179 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
7180 "0384 There is pending active mailbox cmd\n");
7181 return MBX_NOT_FINISHED;
7182 }
7183 /* Take the mailbox command service token */
7184 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
7185
7186 /* Get the next mailbox command from head of queue */
7187 mboxq = lpfc_mbox_get(phba);
7188
7189 /* If no more mailbox command waiting for post, we're done */
7190 if (!mboxq) {
7191 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7192 spin_unlock_irqrestore(&phba->hbalock, iflags);
7193 return MBX_SUCCESS;
7194 }
7195 phba->sli.mbox_active = mboxq;
7196 spin_unlock_irqrestore(&phba->hbalock, iflags);
7197
7198 /* Check device readiness for posting mailbox command */
7199 rc = lpfc_mbox_dev_check(phba);
7200 if (unlikely(rc))
7201 /* Driver clean routine will clean up pending mailbox */
7202 goto out_not_finished;
7203
7204 /* Prepare the mbox command to be posted */
7205 mqe = &mboxq->u.mqe;
7206 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
7207
7208 /* Start timer for the mbox_tmo and log some mailbox post messages */
7209 mod_timer(&psli->mbox_tmo, (jiffies +
James Smarta183a152011-10-10 21:32:43 -04007210 (HZ * lpfc_mbox_tmo_val(phba, mboxq))));
James Smartda0436e2009-05-22 14:51:39 -04007211
7212 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007213 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
James Smartda0436e2009-05-22 14:51:39 -04007214 "x%x x%x\n",
7215 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
James Smarta183a152011-10-10 21:32:43 -04007216 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7217 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007218 phba->pport->port_state, psli->sli_flag);
7219
7220 if (mbx_cmnd != MBX_HEARTBEAT) {
7221 if (mboxq->vport) {
7222 lpfc_debugfs_disc_trc(mboxq->vport,
7223 LPFC_DISC_TRC_MBOX_VPORT,
7224 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7225 mbx_cmnd, mqe->un.mb_words[0],
7226 mqe->un.mb_words[1]);
7227 } else {
7228 lpfc_debugfs_disc_trc(phba->pport,
7229 LPFC_DISC_TRC_MBOX,
7230 "MBOX Send: cmd:x%x mb:x%x x%x",
7231 mbx_cmnd, mqe->un.mb_words[0],
7232 mqe->un.mb_words[1]);
7233 }
7234 }
7235 psli->slistat.mbox_cmd++;
7236
7237 /* Post the mailbox command to the port */
7238 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
7239 if (rc != MBX_SUCCESS) {
7240 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarta183a152011-10-10 21:32:43 -04007241 "(%d):2533 Mailbox command x%x (x%x/x%x) "
James Smartda0436e2009-05-22 14:51:39 -04007242 "cannot issue Data: x%x x%x\n",
7243 mboxq->vport ? mboxq->vport->vpi : 0,
7244 mboxq->u.mb.mbxCommand,
James Smarta183a152011-10-10 21:32:43 -04007245 lpfc_sli_config_mbox_subsys_get(phba, mboxq),
7246 lpfc_sli_config_mbox_opcode_get(phba, mboxq),
James Smartda0436e2009-05-22 14:51:39 -04007247 psli->sli_flag, MBX_NOWAIT);
7248 goto out_not_finished;
7249 }
7250
7251 return rc;
7252
7253out_not_finished:
7254 spin_lock_irqsave(&phba->hbalock, iflags);
James Smartd7069f02012-03-01 22:36:29 -05007255 if (phba->sli.mbox_active) {
7256 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
7257 __lpfc_mbox_cmpl_put(phba, mboxq);
7258 /* Release the token */
7259 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7260 phba->sli.mbox_active = NULL;
7261 }
James Smartda0436e2009-05-22 14:51:39 -04007262 spin_unlock_irqrestore(&phba->hbalock, iflags);
7263
7264 return MBX_NOT_FINISHED;
7265}
7266
7267/**
7268 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7269 * @phba: Pointer to HBA context object.
7270 * @pmbox: Pointer to mailbox object.
7271 * @flag: Flag indicating how the mailbox need to be processed.
7272 *
7273 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7274 * the API jump table function pointer from the lpfc_hba struct.
7275 *
7276 * Return codes the caller owns the mailbox command after the return of the
7277 * function.
7278 **/
7279int
7280lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
7281{
7282 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
7283}
7284
7285/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03007286 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
James Smartda0436e2009-05-22 14:51:39 -04007287 * @phba: The hba struct for which this call is being executed.
7288 * @dev_grp: The HBA PCI-Device group number.
7289 *
7290 * This routine sets up the mbox interface API function jump table in @phba
7291 * struct.
7292 * Returns: 0 - success, -ENODEV - failure.
7293 **/
7294int
7295lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
7296{
7297
7298 switch (dev_grp) {
7299 case LPFC_PCI_DEV_LP:
7300 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
7301 phba->lpfc_sli_handle_slow_ring_event =
7302 lpfc_sli_handle_slow_ring_event_s3;
7303 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
7304 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
7305 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
7306 break;
7307 case LPFC_PCI_DEV_OC:
7308 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
7309 phba->lpfc_sli_handle_slow_ring_event =
7310 lpfc_sli_handle_slow_ring_event_s4;
7311 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
7312 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
7313 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
7314 break;
7315 default:
7316 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7317 "1420 Invalid HBA PCI-device group: 0x%x\n",
7318 dev_grp);
7319 return -ENODEV;
7320 break;
7321 }
7322 return 0;
7323}
7324
7325/**
James Smart3621a712009-04-06 18:47:14 -04007326 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04007327 * @phba: Pointer to HBA context object.
7328 * @pring: Pointer to driver SLI ring object.
7329 * @piocb: Pointer to address of newly added command iocb.
7330 *
7331 * This function is called with hbalock held to add a command
7332 * iocb to the txq when SLI layer cannot submit the command iocb
7333 * to the ring.
7334 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04007335void
James Smart92d7f7b2007-06-17 19:56:38 -05007336__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05007337 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05007338{
7339 /* Insert the caller's iocb in the txq tail for later processing. */
7340 list_add_tail(&piocb->list, &pring->txq);
7341 pring->txq_cnt++;
dea31012005-04-17 16:05:31 -05007342}
7343
James Smarte59058c2008-08-24 21:49:00 -04007344/**
James Smart3621a712009-04-06 18:47:14 -04007345 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04007346 * @phba: Pointer to HBA context object.
7347 * @pring: Pointer to driver SLI ring object.
7348 * @piocb: Pointer to address of newly added command iocb.
7349 *
7350 * This function is called with hbalock held before a new
7351 * iocb is submitted to the firmware. This function checks
7352 * txq to flush the iocbs in txq to Firmware before
7353 * submitting new iocbs to the Firmware.
7354 * If there are iocbs in the txq which need to be submitted
7355 * to firmware, lpfc_sli_next_iocb returns the first element
7356 * of the txq after dequeuing it from txq.
7357 * If there is no iocb in the txq then the function will return
7358 * *piocb and *piocb is set to NULL. Caller needs to check
7359 * *piocb to find if there are more commands in the txq.
7360 **/
dea31012005-04-17 16:05:31 -05007361static struct lpfc_iocbq *
7362lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05007363 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05007364{
7365 struct lpfc_iocbq * nextiocb;
7366
7367 nextiocb = lpfc_sli_ringtx_get(phba, pring);
7368 if (!nextiocb) {
7369 nextiocb = *piocb;
7370 *piocb = NULL;
7371 }
7372
7373 return nextiocb;
7374}
7375
James Smarte59058c2008-08-24 21:49:00 -04007376/**
James Smart3772a992009-05-22 14:50:54 -04007377 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04007378 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04007379 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04007380 * @piocb: Pointer to command iocb.
7381 * @flag: Flag indicating if this command can be put into txq.
7382 *
James Smart3772a992009-05-22 14:50:54 -04007383 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7384 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7385 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7386 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7387 * this function allows only iocbs for posting buffers. This function finds
7388 * next available slot in the command ring and posts the command to the
7389 * available slot and writes the port attention register to request HBA start
7390 * processing new iocb. If there is no slot available in the ring and
7391 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7392 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04007393 *
James Smart3772a992009-05-22 14:50:54 -04007394 * This function is called with hbalock held. The function will return success
7395 * after it successfully submit the iocb to firmware or after adding to the
7396 * txq.
James Smarte59058c2008-08-24 21:49:00 -04007397 **/
James Smart98c9ea52007-10-27 13:37:33 -04007398static int
James Smart3772a992009-05-22 14:50:54 -04007399__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05007400 struct lpfc_iocbq *piocb, uint32_t flag)
7401{
7402 struct lpfc_iocbq *nextiocb;
7403 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04007404 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05007405
James Smart92d7f7b2007-06-17 19:56:38 -05007406 if (piocb->iocb_cmpl && (!piocb->vport) &&
7407 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
7408 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
7409 lpfc_printf_log(phba, KERN_ERR,
7410 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04007411 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05007412 piocb->iocb.ulpCommand);
7413 dump_stack();
7414 return IOCB_ERROR;
7415 }
7416
7417
Linas Vepstas8d63f372007-02-14 14:28:36 -06007418 /* If the PCI channel is in offline state, do not post iocbs. */
7419 if (unlikely(pci_channel_offline(phba->pcidev)))
7420 return IOCB_ERROR;
7421
James Smarta257bf92009-04-06 18:48:10 -04007422 /* If HBA has a deferred error attention, fail the iocb. */
7423 if (unlikely(phba->hba_flag & DEFER_ERATT))
7424 return IOCB_ERROR;
7425
dea31012005-04-17 16:05:31 -05007426 /*
7427 * We should never get an IOCB if we are in a < LINK_DOWN state
7428 */
James Smart2e0fef82007-06-17 19:56:36 -05007429 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05007430 return IOCB_ERROR;
7431
7432 /*
7433 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04007434 * outstanding event.
dea31012005-04-17 16:05:31 -05007435 */
James Smart0b727fe2007-10-27 13:37:25 -04007436 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05007437 goto iocb_busy;
7438
James Smart2e0fef82007-06-17 19:56:36 -05007439 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05007440 /*
James Smart2680eea2007-04-25 09:52:55 -04007441 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05007442 * can be issued if the link is not up.
7443 */
7444 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04007445 case CMD_GEN_REQUEST64_CR:
7446 case CMD_GEN_REQUEST64_CX:
7447 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
7448 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04007449 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04007450 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
7451 MENLO_TRANSPORT_TYPE))
7452
7453 goto iocb_busy;
7454 break;
dea31012005-04-17 16:05:31 -05007455 case CMD_QUE_RING_BUF_CN:
7456 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05007457 /*
7458 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7459 * completion, iocb_cmpl MUST be 0.
7460 */
7461 if (piocb->iocb_cmpl)
7462 piocb->iocb_cmpl = NULL;
7463 /*FALLTHROUGH*/
7464 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04007465 case CMD_CLOSE_XRI_CN:
7466 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05007467 break;
7468 default:
7469 goto iocb_busy;
7470 }
7471
7472 /*
7473 * For FCP commands, we must be in a state where we can process link
7474 * attention events.
7475 */
7476 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05007477 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05007478 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05007479 }
dea31012005-04-17 16:05:31 -05007480
dea31012005-04-17 16:05:31 -05007481 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
7482 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
7483 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
7484
7485 if (iocb)
7486 lpfc_sli_update_ring(phba, pring);
7487 else
7488 lpfc_sli_update_full_ring(phba, pring);
7489
7490 if (!piocb)
7491 return IOCB_SUCCESS;
7492
7493 goto out_busy;
7494
7495 iocb_busy:
7496 pring->stats.iocb_cmd_delay++;
7497
7498 out_busy:
7499
7500 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05007501 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05007502 return IOCB_SUCCESS;
7503 }
7504
7505 return IOCB_BUSY;
7506}
7507
James Smart3772a992009-05-22 14:50:54 -04007508/**
James Smart4f774512009-05-22 14:52:35 -04007509 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7510 * @phba: Pointer to HBA context object.
7511 * @piocb: Pointer to command iocb.
7512 * @sglq: Pointer to the scatter gather queue object.
7513 *
7514 * This routine converts the bpl or bde that is in the IOCB
7515 * to a sgl list for the sli4 hardware. The physical address
7516 * of the bpl/bde is converted back to a virtual address.
7517 * If the IOCB contains a BPL then the list of BDE's is
7518 * converted to sli4_sge's. If the IOCB contains a single
7519 * BDE then it is converted to a single sli_sge.
7520 * The IOCB is still in cpu endianess so the contents of
7521 * the bpl can be used without byte swapping.
7522 *
7523 * Returns valid XRI = Success, NO_XRI = Failure.
7524**/
7525static uint16_t
7526lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
7527 struct lpfc_sglq *sglq)
7528{
7529 uint16_t xritag = NO_XRI;
7530 struct ulp_bde64 *bpl = NULL;
7531 struct ulp_bde64 bde;
7532 struct sli4_sge *sgl = NULL;
James Smart1b511972011-12-13 13:23:09 -05007533 struct lpfc_dmabuf *dmabuf;
James Smart4f774512009-05-22 14:52:35 -04007534 IOCB_t *icmd;
7535 int numBdes = 0;
7536 int i = 0;
James Smart63e801c2010-11-20 23:14:19 -05007537 uint32_t offset = 0; /* accumulated offset in the sg request list */
7538 int inbound = 0; /* number of sg reply entries inbound from firmware */
James Smart4f774512009-05-22 14:52:35 -04007539
7540 if (!piocbq || !sglq)
7541 return xritag;
7542
7543 sgl = (struct sli4_sge *)sglq->sgl;
7544 icmd = &piocbq->iocb;
James Smart6b5151f2012-01-18 16:24:06 -05007545 if (icmd->ulpCommand == CMD_XMIT_BLS_RSP64_CX)
7546 return sglq->sli4_xritag;
James Smart4f774512009-05-22 14:52:35 -04007547 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
7548 numBdes = icmd->un.genreq64.bdl.bdeSize /
7549 sizeof(struct ulp_bde64);
7550 /* The addrHigh and addrLow fields within the IOCB
7551 * have not been byteswapped yet so there is no
7552 * need to swap them back.
7553 */
James Smart1b511972011-12-13 13:23:09 -05007554 if (piocbq->context3)
7555 dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
7556 else
7557 return xritag;
James Smart4f774512009-05-22 14:52:35 -04007558
James Smart1b511972011-12-13 13:23:09 -05007559 bpl = (struct ulp_bde64 *)dmabuf->virt;
James Smart4f774512009-05-22 14:52:35 -04007560 if (!bpl)
7561 return xritag;
7562
7563 for (i = 0; i < numBdes; i++) {
7564 /* Should already be byte swapped. */
James Smart28baac72010-02-12 14:42:03 -05007565 sgl->addr_hi = bpl->addrHigh;
7566 sgl->addr_lo = bpl->addrLow;
7567
James Smart05580562011-05-24 11:40:48 -04007568 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04007569 if ((i+1) == numBdes)
7570 bf_set(lpfc_sli4_sge_last, sgl, 1);
7571 else
7572 bf_set(lpfc_sli4_sge_last, sgl, 0);
James Smart28baac72010-02-12 14:42:03 -05007573 /* swap the size field back to the cpu so we
7574 * can assign it to the sgl.
7575 */
7576 bde.tus.w = le32_to_cpu(bpl->tus.w);
7577 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
James Smart63e801c2010-11-20 23:14:19 -05007578 /* The offsets in the sgl need to be accumulated
7579 * separately for the request and reply lists.
7580 * The request is always first, the reply follows.
7581 */
7582 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
7583 /* add up the reply sg entries */
7584 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
7585 inbound++;
7586 /* first inbound? reset the offset */
7587 if (inbound == 1)
7588 offset = 0;
7589 bf_set(lpfc_sli4_sge_offset, sgl, offset);
James Smartf9bb2da2011-10-10 21:34:11 -04007590 bf_set(lpfc_sli4_sge_type, sgl,
7591 LPFC_SGE_TYPE_DATA);
James Smart63e801c2010-11-20 23:14:19 -05007592 offset += bde.tus.f.bdeSize;
7593 }
James Smart546fc852011-03-11 16:06:29 -05007594 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04007595 bpl++;
7596 sgl++;
7597 }
7598 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
7599 /* The addrHigh and addrLow fields of the BDE have not
7600 * been byteswapped yet so they need to be swapped
7601 * before putting them in the sgl.
7602 */
7603 sgl->addr_hi =
7604 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
7605 sgl->addr_lo =
7606 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
James Smart05580562011-05-24 11:40:48 -04007607 sgl->word2 = le32_to_cpu(sgl->word2);
James Smart4f774512009-05-22 14:52:35 -04007608 bf_set(lpfc_sli4_sge_last, sgl, 1);
7609 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05007610 sgl->sge_len =
7611 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04007612 }
7613 return sglq->sli4_xritag;
7614}
7615
7616/**
7617 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7618 * @phba: Pointer to HBA context object.
James Smart4f774512009-05-22 14:52:35 -04007619 *
James Smarta93ff372010-10-22 11:06:08 -04007620 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
James Smart8fa38512009-07-19 10:01:03 -04007621 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7622 * held.
James Smart4f774512009-05-22 14:52:35 -04007623 *
7624 * Return: index into SLI4 fast-path FCP queue index.
7625 **/
7626static uint32_t
James Smart8fa38512009-07-19 10:01:03 -04007627lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -04007628{
James Smart8fa38512009-07-19 10:01:03 -04007629 ++phba->fcp_qidx;
7630 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
7631 phba->fcp_qidx = 0;
James Smart4f774512009-05-22 14:52:35 -04007632
James Smart8fa38512009-07-19 10:01:03 -04007633 return phba->fcp_qidx;
James Smart4f774512009-05-22 14:52:35 -04007634}
7635
7636/**
7637 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7638 * @phba: Pointer to HBA context object.
7639 * @piocb: Pointer to command iocb.
7640 * @wqe: Pointer to the work queue entry.
7641 *
7642 * This routine converts the iocb command to its Work Queue Entry
7643 * equivalent. The wqe pointer should not have any fields set when
7644 * this routine is called because it will memcpy over them.
7645 * This routine does not set the CQ_ID or the WQEC bits in the
7646 * wqe.
7647 *
7648 * Returns: 0 = Success, IOCB_ERROR = Failure.
7649 **/
7650static int
7651lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
7652 union lpfc_wqe *wqe)
7653{
James Smart5ffc2662009-11-18 15:39:44 -05007654 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04007655 uint8_t ct = 0;
7656 uint32_t fip;
7657 uint32_t abort_tag;
7658 uint8_t command_type = ELS_COMMAND_NON_FIP;
7659 uint8_t cmnd;
7660 uint16_t xritag;
James Smartdcf2a4e2010-09-29 11:18:53 -04007661 uint16_t abrt_iotag;
7662 struct lpfc_iocbq *abrtiocbq;
James Smart4f774512009-05-22 14:52:35 -04007663 struct ulp_bde64 *bpl = NULL;
James Smartf0d9bcc2010-10-22 11:07:09 -04007664 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05007665 int numBdes, i;
7666 struct ulp_bde64 bde;
James Smartc31098c2011-04-16 11:03:33 -04007667 struct lpfc_nodelist *ndlp;
James Smartff78d8f2011-12-13 13:21:35 -05007668 uint32_t *pcmd;
James Smart1b511972011-12-13 13:23:09 -05007669 uint32_t if_type;
James Smart4f774512009-05-22 14:52:35 -04007670
James Smart45ed1192009-10-02 15:17:02 -04007671 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04007672 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04007673 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04007674 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05007675 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04007676 command_type = ELS_COMMAND_FIP;
7677 else
7678 command_type = ELS_COMMAND_NON_FIP;
7679
James Smart4f774512009-05-22 14:52:35 -04007680 /* Some of the fields are in the right position already */
7681 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
7682 abort_tag = (uint32_t) iocbq->iotag;
7683 xritag = iocbq->sli4_xritag;
James Smartf0d9bcc2010-10-22 11:07:09 -04007684 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
James Smart4f774512009-05-22 14:52:35 -04007685 /* words0-2 bpl convert bde */
7686 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05007687 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7688 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04007689 bpl = (struct ulp_bde64 *)
7690 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
7691 if (!bpl)
7692 return IOCB_ERROR;
7693
7694 /* Should already be byte swapped. */
7695 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
7696 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
7697 /* swap the size field back to the cpu so we
7698 * can assign it to the sgl.
7699 */
7700 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05007701 xmit_len = wqe->generic.bde.tus.f.bdeSize;
7702 total_len = 0;
7703 for (i = 0; i < numBdes; i++) {
7704 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
7705 total_len += bde.tus.f.bdeSize;
7706 }
James Smart4f774512009-05-22 14:52:35 -04007707 } else
James Smart5ffc2662009-11-18 15:39:44 -05007708 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04007709
7710 iocbq->iocb.ulpIoTag = iocbq->iotag;
7711 cmnd = iocbq->iocb.ulpCommand;
7712
7713 switch (iocbq->iocb.ulpCommand) {
7714 case CMD_ELS_REQUEST64_CR:
James Smartc31098c2011-04-16 11:03:33 -04007715 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04007716 if (!iocbq->iocb.ulpLe) {
7717 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7718 "2007 Only Limited Edition cmd Format"
7719 " supported 0x%x\n",
7720 iocbq->iocb.ulpCommand);
7721 return IOCB_ERROR;
7722 }
James Smartff78d8f2011-12-13 13:21:35 -05007723
James Smart5ffc2662009-11-18 15:39:44 -05007724 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04007725 /* Els_reguest64 has a TMO */
7726 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
7727 iocbq->iocb.ulpTimeout);
7728 /* Need a VF for word 4 set the vf bit*/
7729 bf_set(els_req64_vf, &wqe->els_req, 0);
7730 /* And a VFID for word 12 */
7731 bf_set(els_req64_vfid, &wqe->els_req, 0);
James Smart4f774512009-05-22 14:52:35 -04007732 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
James Smartf0d9bcc2010-10-22 11:07:09 -04007733 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7734 iocbq->iocb.ulpContext);
7735 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
7736 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04007737 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartff78d8f2011-12-13 13:21:35 -05007738 if (command_type == ELS_COMMAND_FIP)
James Smartc8685952009-11-18 15:39:16 -05007739 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
7740 >> LPFC_FIP_ELS_ID_SHIFT);
James Smartff78d8f2011-12-13 13:21:35 -05007741 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7742 iocbq->context2)->virt);
James Smart1b511972011-12-13 13:23:09 -05007743 if_type = bf_get(lpfc_sli_intf_if_type,
7744 &phba->sli4_hba.sli_intf);
7745 if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
James Smartff78d8f2011-12-13 13:21:35 -05007746 if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
James Smartcb69f7d2011-12-13 13:21:57 -05007747 *pcmd == ELS_CMD_SCR ||
James Smart6b5151f2012-01-18 16:24:06 -05007748 *pcmd == ELS_CMD_FDISC ||
James Smartbdcd2b92012-03-01 22:33:52 -05007749 *pcmd == ELS_CMD_LOGO ||
James Smartff78d8f2011-12-13 13:21:35 -05007750 *pcmd == ELS_CMD_PLOGI)) {
7751 bf_set(els_req64_sp, &wqe->els_req, 1);
7752 bf_set(els_req64_sid, &wqe->els_req,
7753 iocbq->vport->fc_myDID);
7754 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7755 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7756 phba->vpi_ids[phba->pport->vpi]);
James Smart3ef6d242012-01-18 16:23:48 -05007757 } else if (pcmd && iocbq->context1) {
James Smartff78d8f2011-12-13 13:21:35 -05007758 bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
7759 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7760 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
7761 }
James Smartc8685952009-11-18 15:39:16 -05007762 }
James Smart6d368e52011-05-24 11:44:12 -04007763 bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
7764 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04007765 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
7766 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
7767 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
7768 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
7769 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7770 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
James Smart7851fe22011-07-22 18:36:52 -04007771 break;
James Smart5ffc2662009-11-18 15:39:44 -05007772 case CMD_XMIT_SEQUENCE64_CX:
James Smartf0d9bcc2010-10-22 11:07:09 -04007773 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
7774 iocbq->iocb.un.ulpWord[3]);
7775 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04007776 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart5ffc2662009-11-18 15:39:44 -05007777 /* The entire sequence is transmitted for this IOCB */
7778 xmit_len = total_len;
7779 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart1b511972011-12-13 13:23:09 -05007780 if (phba->link_flag & LS_LOOPBACK_MODE)
7781 bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
James Smart4f774512009-05-22 14:52:35 -04007782 case CMD_XMIT_SEQUENCE64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04007783 /* word3 iocb=io_tag32 wqe=reserved */
7784 wqe->xmit_sequence.rsvd3 = 0;
James Smart4f774512009-05-22 14:52:35 -04007785 /* word4 relative_offset memcpy */
7786 /* word5 r_ctl/df_ctl memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04007787 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
7788 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
7789 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
7790 LPFC_WQE_IOD_WRITE);
7791 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
7792 LPFC_WQE_LENLOC_WORD12);
7793 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
James Smart5ffc2662009-11-18 15:39:44 -05007794 wqe->xmit_sequence.xmit_len = xmit_len;
7795 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04007796 break;
James Smart4f774512009-05-22 14:52:35 -04007797 case CMD_XMIT_BCAST64_CN:
James Smartf0d9bcc2010-10-22 11:07:09 -04007798 /* word3 iocb=iotag32 wqe=seq_payload_len */
7799 wqe->xmit_bcast64.seq_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04007800 /* word4 iocb=rsvd wqe=rsvd */
7801 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
7802 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
James Smartf0d9bcc2010-10-22 11:07:09 -04007803 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04007804 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
James Smartf0d9bcc2010-10-22 11:07:09 -04007805 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
7806 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
7807 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
7808 LPFC_WQE_LENLOC_WORD3);
7809 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
James Smart7851fe22011-07-22 18:36:52 -04007810 break;
James Smart4f774512009-05-22 14:52:35 -04007811 case CMD_FCP_IWRITE64_CR:
7812 command_type = FCP_COMMAND_DATA_OUT;
James Smartf0d9bcc2010-10-22 11:07:09 -04007813 /* word3 iocb=iotag wqe=payload_offset_len */
7814 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7815 wqe->fcp_iwrite.payload_offset_len =
James Smart5ffc2662009-11-18 15:39:44 -05007816 xmit_len + sizeof(struct fcp_rsp);
James Smartf0d9bcc2010-10-22 11:07:09 -04007817 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7818 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7819 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
7820 iocbq->iocb.ulpFCP2Rcvy);
7821 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
7822 /* Always open the exchange */
7823 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04007824 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
7825 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
7826 LPFC_WQE_LENLOC_WORD4);
7827 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
7828 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05007829 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7830 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7831 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
7832 }
7833 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
James Smart7851fe22011-07-22 18:36:52 -04007834 break;
James Smartf0d9bcc2010-10-22 11:07:09 -04007835 case CMD_FCP_IREAD64_CR:
7836 /* word3 iocb=iotag wqe=payload_offset_len */
7837 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
7838 wqe->fcp_iread.payload_offset_len =
7839 xmit_len + sizeof(struct fcp_rsp);
7840 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
7841 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
7842 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
7843 iocbq->iocb.ulpFCP2Rcvy);
7844 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
James Smart4f774512009-05-22 14:52:35 -04007845 /* Always open the exchange */
7846 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04007847 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
7848 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
7849 LPFC_WQE_LENLOC_WORD4);
7850 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
7851 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
James Smartacd68592012-01-18 16:25:09 -05007852 if (iocbq->iocb_flag & LPFC_IO_DIF) {
7853 iocbq->iocb_flag &= ~LPFC_IO_DIF;
7854 bf_set(wqe_dif, &wqe->generic.wqe_com, 1);
7855 }
7856 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
James Smart7851fe22011-07-22 18:36:52 -04007857 break;
James Smartf1126682009-06-10 17:22:44 -04007858 case CMD_FCP_ICMND64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04007859 /* word3 iocb=IO_TAG wqe=reserved */
7860 wqe->fcp_icmd.rsrvd3 = 0;
7861 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
James Smartf1126682009-06-10 17:22:44 -04007862 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04007863 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
7864 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
7865 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
7866 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
7867 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
7868 LPFC_WQE_LENLOC_NONE);
7869 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
James Smart7851fe22011-07-22 18:36:52 -04007870 break;
James Smart4f774512009-05-22 14:52:35 -04007871 case CMD_GEN_REQUEST64_CR:
James Smart63e801c2010-11-20 23:14:19 -05007872 /* For this command calculate the xmit length of the
7873 * request bde.
7874 */
7875 xmit_len = 0;
7876 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
7877 sizeof(struct ulp_bde64);
7878 for (i = 0; i < numBdes; i++) {
James Smart63e801c2010-11-20 23:14:19 -05007879 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
James Smart546fc852011-03-11 16:06:29 -05007880 if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
7881 break;
James Smart63e801c2010-11-20 23:14:19 -05007882 xmit_len += bde.tus.f.bdeSize;
7883 }
James Smartf0d9bcc2010-10-22 11:07:09 -04007884 /* word3 iocb=IO_TAG wqe=request_payload_len */
7885 wqe->gen_req.request_payload_len = xmit_len;
7886 /* word4 iocb=parameter wqe=relative_offset memcpy */
7887 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
James Smart4f774512009-05-22 14:52:35 -04007888 /* word6 context tag copied in memcpy */
7889 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
7890 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
7891 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
7892 "2015 Invalid CT %x command 0x%x\n",
7893 ct, iocbq->iocb.ulpCommand);
7894 return IOCB_ERROR;
7895 }
James Smartf0d9bcc2010-10-22 11:07:09 -04007896 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
7897 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
7898 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
7899 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
7900 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
7901 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
7902 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
7903 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04007904 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04007905 break;
James Smart4f774512009-05-22 14:52:35 -04007906 case CMD_XMIT_ELS_RSP64_CX:
James Smartc31098c2011-04-16 11:03:33 -04007907 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart4f774512009-05-22 14:52:35 -04007908 /* words0-2 BDE memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04007909 /* word3 iocb=iotag32 wqe=response_payload_len */
7910 wqe->xmit_els_rsp.response_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04007911 /* word4 iocb=did wge=rsvd. */
James Smartf0d9bcc2010-10-22 11:07:09 -04007912 wqe->xmit_els_rsp.rsvd4 = 0;
James Smart4f774512009-05-22 14:52:35 -04007913 /* word5 iocb=rsvd wge=did */
7914 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
7915 iocbq->iocb.un.elsreq64.remoteID);
James Smartf0d9bcc2010-10-22 11:07:09 -04007916 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
7917 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7918 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
7919 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
James Smart7851fe22011-07-22 18:36:52 -04007920 iocbq->iocb.unsli3.rcvsli3.ox_id);
James Smart4f774512009-05-22 14:52:35 -04007921 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
James Smartf0d9bcc2010-10-22 11:07:09 -04007922 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smart6d368e52011-05-24 11:44:12 -04007923 phba->vpi_ids[iocbq->vport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04007924 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
7925 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
7926 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
7927 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
7928 LPFC_WQE_LENLOC_WORD3);
7929 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
James Smart6d368e52011-05-24 11:44:12 -04007930 bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
7931 phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
James Smartff78d8f2011-12-13 13:21:35 -05007932 pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
7933 iocbq->context2)->virt);
7934 if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
7935 bf_set(els_req64_sp, &wqe->els_req, 1);
7936 bf_set(els_req64_sid, &wqe->els_req,
7937 iocbq->vport->fc_myDID);
7938 bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
7939 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
7940 phba->vpi_ids[phba->pport->vpi]);
7941 }
James Smart4f774512009-05-22 14:52:35 -04007942 command_type = OTHER_COMMAND;
James Smart7851fe22011-07-22 18:36:52 -04007943 break;
James Smart4f774512009-05-22 14:52:35 -04007944 case CMD_CLOSE_XRI_CN:
7945 case CMD_ABORT_XRI_CN:
7946 case CMD_ABORT_XRI_CX:
7947 /* words 0-2 memcpy should be 0 rserved */
7948 /* port will send abts */
James Smartdcf2a4e2010-09-29 11:18:53 -04007949 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
7950 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
7951 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
7952 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
7953 } else
7954 fip = 0;
7955
7956 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
James Smart4f774512009-05-22 14:52:35 -04007957 /*
James Smartdcf2a4e2010-09-29 11:18:53 -04007958 * The link is down, or the command was ELS_FIP
7959 * so the fw does not need to send abts
James Smart4f774512009-05-22 14:52:35 -04007960 * on the wire.
7961 */
7962 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
7963 else
7964 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
7965 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smartf0d9bcc2010-10-22 11:07:09 -04007966 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
7967 wqe->abort_cmd.rsrvd5 = 0;
7968 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04007969 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
7970 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04007971 /*
7972 * The abort handler will send us CMD_ABORT_XRI_CN or
7973 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
7974 */
James Smartf0d9bcc2010-10-22 11:07:09 -04007975 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
7976 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
7977 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
7978 LPFC_WQE_LENLOC_NONE);
James Smart4f774512009-05-22 14:52:35 -04007979 cmnd = CMD_ABORT_XRI_CX;
7980 command_type = OTHER_COMMAND;
7981 xritag = 0;
James Smart7851fe22011-07-22 18:36:52 -04007982 break;
James Smart6669f9b2009-10-02 15:16:45 -04007983 case CMD_XMIT_BLS_RSP64_CX:
James Smart6b5151f2012-01-18 16:24:06 -05007984 ndlp = (struct lpfc_nodelist *)iocbq->context1;
James Smart546fc852011-03-11 16:06:29 -05007985 /* As BLS ABTS RSP WQE is very different from other WQEs,
James Smart6669f9b2009-10-02 15:16:45 -04007986 * we re-construct this WQE here based on information in
7987 * iocbq from scratch.
7988 */
7989 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05007990 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04007991 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05007992 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_rsp));
7993 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_rsp) ==
James Smart5ffc2662009-11-18 15:39:44 -05007994 LPFC_ABTS_UNSOL_INT) {
7995 /* ABTS sent by initiator to CT exchange, the
7996 * RX_ID field will be filled with the newly
7997 * allocated responder XRI.
7998 */
7999 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
8000 iocbq->sli4_xritag);
8001 } else {
8002 /* ABTS sent by responder to CT exchange, the
8003 * RX_ID field will be filled with the responder
8004 * RX_ID from ABTS.
8005 */
8006 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
James Smart546fc852011-03-11 16:06:29 -05008007 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_rsp));
James Smart5ffc2662009-11-18 15:39:44 -05008008 }
James Smart6669f9b2009-10-02 15:16:45 -04008009 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
8010 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
James Smart6b5151f2012-01-18 16:24:06 -05008011
8012 /* Use CT=VPI */
8013 bf_set(wqe_els_did, &wqe->xmit_bls_rsp.wqe_dest,
8014 ndlp->nlp_DID);
8015 bf_set(xmit_bls_rsp64_temprpi, &wqe->xmit_bls_rsp,
8016 iocbq->iocb.ulpContext);
8017 bf_set(wqe_ct, &wqe->xmit_bls_rsp.wqe_com, 1);
James Smart6669f9b2009-10-02 15:16:45 -04008018 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
James Smart6b5151f2012-01-18 16:24:06 -05008019 phba->vpi_ids[phba->pport->vpi]);
James Smartf0d9bcc2010-10-22 11:07:09 -04008020 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
8021 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
8022 LPFC_WQE_LENLOC_NONE);
James Smart6669f9b2009-10-02 15:16:45 -04008023 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8024 command_type = OTHER_COMMAND;
James Smart546fc852011-03-11 16:06:29 -05008025 if (iocbq->iocb.un.xseq64.w5.hcsw.Rctl == FC_RCTL_BA_RJT) {
8026 bf_set(xmit_bls_rsp64_rjt_vspec, &wqe->xmit_bls_rsp,
8027 bf_get(lpfc_vndr_code, &iocbq->iocb.un.bls_rsp));
8028 bf_set(xmit_bls_rsp64_rjt_expc, &wqe->xmit_bls_rsp,
8029 bf_get(lpfc_rsn_expln, &iocbq->iocb.un.bls_rsp));
8030 bf_set(xmit_bls_rsp64_rjt_rsnc, &wqe->xmit_bls_rsp,
8031 bf_get(lpfc_rsn_code, &iocbq->iocb.un.bls_rsp));
8032 }
8033
James Smart7851fe22011-07-22 18:36:52 -04008034 break;
James Smart4f774512009-05-22 14:52:35 -04008035 case CMD_XRI_ABORTED_CX:
8036 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
James Smart4f774512009-05-22 14:52:35 -04008037 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
8038 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
8039 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
8040 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
8041 default:
8042 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8043 "2014 Invalid command 0x%x\n",
8044 iocbq->iocb.ulpCommand);
8045 return IOCB_ERROR;
James Smart7851fe22011-07-22 18:36:52 -04008046 break;
James Smart4f774512009-05-22 14:52:35 -04008047 }
James Smart6d368e52011-05-24 11:44:12 -04008048
James Smartf0d9bcc2010-10-22 11:07:09 -04008049 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
8050 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
8051 wqe->generic.wqe_com.abort_tag = abort_tag;
8052 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
8053 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
8054 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
8055 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
James Smart4f774512009-05-22 14:52:35 -04008056 return 0;
8057}
8058
8059/**
8060 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8061 * @phba: Pointer to HBA context object.
8062 * @ring_number: SLI ring number to issue iocb on.
8063 * @piocb: Pointer to command iocb.
8064 * @flag: Flag indicating if this command can be put into txq.
8065 *
8066 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8067 * an iocb command to an HBA with SLI-4 interface spec.
8068 *
8069 * This function is called with hbalock held. The function will return success
8070 * after it successfully submit the iocb to firmware or after adding to the
8071 * txq.
8072 **/
8073static int
8074__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
8075 struct lpfc_iocbq *piocb, uint32_t flag)
8076{
8077 struct lpfc_sglq *sglq;
James Smart4f774512009-05-22 14:52:35 -04008078 union lpfc_wqe wqe;
8079 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
James Smart4f774512009-05-22 14:52:35 -04008080
8081 if (piocb->sli4_xritag == NO_XRI) {
8082 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6b5151f2012-01-18 16:24:06 -05008083 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04008084 sglq = NULL;
8085 else {
James Smart2a9bf3d2010-06-07 15:24:45 -04008086 if (pring->txq_cnt) {
8087 if (!(flag & SLI_IOCB_RET_IOCB)) {
8088 __lpfc_sli_ringtx_put(phba,
8089 pring, piocb);
8090 return IOCB_SUCCESS;
8091 } else {
8092 return IOCB_BUSY;
8093 }
8094 } else {
James Smart6d368e52011-05-24 11:44:12 -04008095 sglq = __lpfc_sli_get_sglq(phba, piocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04008096 if (!sglq) {
8097 if (!(flag & SLI_IOCB_RET_IOCB)) {
8098 __lpfc_sli_ringtx_put(phba,
8099 pring,
8100 piocb);
8101 return IOCB_SUCCESS;
8102 } else
8103 return IOCB_BUSY;
8104 }
8105 }
James Smart4f774512009-05-22 14:52:35 -04008106 }
8107 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
James Smart6d368e52011-05-24 11:44:12 -04008108 /* These IO's already have an XRI and a mapped sgl. */
8109 sglq = NULL;
James Smart4f774512009-05-22 14:52:35 -04008110 } else {
James Smart6d368e52011-05-24 11:44:12 -04008111 /*
8112 * This is a continuation of a commandi,(CX) so this
James Smart4f774512009-05-22 14:52:35 -04008113 * sglq is on the active list
8114 */
8115 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
8116 if (!sglq)
8117 return IOCB_ERROR;
8118 }
8119
8120 if (sglq) {
James Smart6d368e52011-05-24 11:44:12 -04008121 piocb->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04008122 piocb->sli4_xritag = sglq->sli4_xritag;
James Smart2a9bf3d2010-06-07 15:24:45 -04008123 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
James Smart4f774512009-05-22 14:52:35 -04008124 return IOCB_ERROR;
8125 }
8126
8127 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
8128 return IOCB_ERROR;
8129
James Smart341af102010-01-26 23:07:37 -05008130 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
8131 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smart5ffc2662009-11-18 15:39:44 -05008132 /*
8133 * For FCP command IOCB, get a new WQ index to distribute
8134 * WQE across the WQsr. On the other hand, for abort IOCB,
8135 * it carries the same WQ index to the original command
8136 * IOCB.
8137 */
James Smart341af102010-01-26 23:07:37 -05008138 if (piocb->iocb_flag & LPFC_IO_FCP)
James Smart5ffc2662009-11-18 15:39:44 -05008139 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
James Smart2e90f4b2011-12-13 13:22:37 -05008140 if (unlikely(!phba->sli4_hba.fcp_wq))
8141 return IOCB_ERROR;
James Smart5ffc2662009-11-18 15:39:44 -05008142 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
8143 &wqe))
James Smart4f774512009-05-22 14:52:35 -04008144 return IOCB_ERROR;
8145 } else {
8146 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
8147 return IOCB_ERROR;
8148 }
8149 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
8150
8151 return 0;
8152}
8153
8154/**
James Smart3772a992009-05-22 14:50:54 -04008155 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8156 *
8157 * This routine wraps the actual lockless version for issusing IOCB function
8158 * pointer from the lpfc_hba struct.
8159 *
8160 * Return codes:
8161 * IOCB_ERROR - Error
8162 * IOCB_SUCCESS - Success
8163 * IOCB_BUSY - Busy
8164 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04008165int
James Smart3772a992009-05-22 14:50:54 -04008166__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
8167 struct lpfc_iocbq *piocb, uint32_t flag)
8168{
8169 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
8170}
8171
8172/**
Lucas De Marchi25985ed2011-03-30 22:57:33 -03008173 * lpfc_sli_api_table_setup - Set up sli api function jump table
James Smart3772a992009-05-22 14:50:54 -04008174 * @phba: The hba struct for which this call is being executed.
8175 * @dev_grp: The HBA PCI-Device group number.
8176 *
8177 * This routine sets up the SLI interface API function jump table in @phba
8178 * struct.
8179 * Returns: 0 - success, -ENODEV - failure.
8180 **/
8181int
8182lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
8183{
8184
8185 switch (dev_grp) {
8186 case LPFC_PCI_DEV_LP:
8187 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
8188 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
8189 break;
James Smart4f774512009-05-22 14:52:35 -04008190 case LPFC_PCI_DEV_OC:
8191 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
8192 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
8193 break;
James Smart3772a992009-05-22 14:50:54 -04008194 default:
8195 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8196 "1419 Invalid HBA PCI-device group: 0x%x\n",
8197 dev_grp);
8198 return -ENODEV;
8199 break;
8200 }
8201 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
8202 return 0;
8203}
James Smart92d7f7b2007-06-17 19:56:38 -05008204
James Smarte59058c2008-08-24 21:49:00 -04008205/**
James Smart3621a712009-04-06 18:47:14 -04008206 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04008207 * @phba: Pointer to HBA context object.
8208 * @pring: Pointer to driver SLI ring object.
8209 * @piocb: Pointer to command iocb.
8210 * @flag: Flag indicating if this command can be put into txq.
8211 *
8212 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8213 * function. This function gets the hbalock and calls
8214 * __lpfc_sli_issue_iocb function and will return the error returned
8215 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8216 * functions which do not hold hbalock.
8217 **/
James Smart92d7f7b2007-06-17 19:56:38 -05008218int
James Smart3772a992009-05-22 14:50:54 -04008219lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05008220 struct lpfc_iocbq *piocb, uint32_t flag)
8221{
8222 unsigned long iflags;
8223 int rc;
8224
8225 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart3772a992009-05-22 14:50:54 -04008226 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
James Smart92d7f7b2007-06-17 19:56:38 -05008227 spin_unlock_irqrestore(&phba->hbalock, iflags);
8228
8229 return rc;
8230}
8231
James Smarte59058c2008-08-24 21:49:00 -04008232/**
James Smart3621a712009-04-06 18:47:14 -04008233 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04008234 * @phba: Pointer to HBA context object.
8235 *
8236 * This function is called while driver attaches with the
8237 * HBA to setup the extra ring. The extra ring is used
8238 * only when driver needs to support target mode functionality
8239 * or IP over FC functionalities.
8240 *
8241 * This function is called with no lock held.
8242 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008243static int
8244lpfc_extra_ring_setup( struct lpfc_hba *phba)
8245{
8246 struct lpfc_sli *psli;
8247 struct lpfc_sli_ring *pring;
8248
8249 psli = &phba->sli;
8250
8251 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05008252
8253 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008254 pring = &psli->ring[psli->fcp_ring];
8255 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8256 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8257 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8258 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8259
James Smarta4bc3372006-12-02 13:34:16 -05008260 /* and give them to the extra ring */
8261 pring = &psli->ring[psli->extra_ring];
8262
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008263 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8264 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8265 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8266 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
8267
8268 /* Setup default profile for this ring */
8269 pring->iotag_max = 4096;
8270 pring->num_mask = 1;
8271 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05008272 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
8273 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008274 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
8275 return 0;
8276}
8277
James Smartcb69f7d2011-12-13 13:21:57 -05008278/* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
8279 * @vport: pointer to virtual port object.
8280 * @ndlp: nodelist pointer for the impacted rport.
8281 *
8282 * The driver calls this routine in response to a XRI ABORT CQE
8283 * event from the port. In this event, the driver is required to
8284 * recover its login to the rport even though its login may be valid
8285 * from the driver's perspective. The failed ABTS notice from the
8286 * port indicates the rport is not responding.
8287 */
8288static void
8289lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
8290 struct lpfc_nodelist *ndlp)
8291{
8292 struct Scsi_Host *shost;
8293 struct lpfc_hba *phba;
8294 unsigned long flags = 0;
8295
8296 shost = lpfc_shost_from_vport(vport);
8297 phba = vport->phba;
8298 if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
8299 lpfc_printf_log(phba, KERN_INFO,
8300 LOG_SLI, "3093 No rport recovery needed. "
8301 "rport in state 0x%x\n",
8302 ndlp->nlp_state);
8303 return;
8304 }
8305 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8306 "3094 Start rport recovery on shost id 0x%x "
8307 "fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
8308 "flags 0x%x\n",
8309 shost->host_no, ndlp->nlp_DID,
8310 vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
8311 ndlp->nlp_flag);
8312 /*
8313 * The rport is not responding. Don't attempt ADISC recovery.
8314 * Remove the FCP-2 flag to force a PLOGI.
8315 */
8316 spin_lock_irqsave(shost->host_lock, flags);
8317 ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
8318 spin_unlock_irqrestore(shost->host_lock, flags);
8319 lpfc_disc_state_machine(vport, ndlp, NULL,
8320 NLP_EVT_DEVICE_RECOVERY);
8321 lpfc_cancel_retry_delay_tmo(vport, ndlp);
8322 spin_lock_irqsave(shost->host_lock, flags);
8323 ndlp->nlp_flag |= NLP_NPR_2B_DISC;
8324 spin_unlock_irqrestore(shost->host_lock, flags);
8325 lpfc_disc_start(vport);
8326}
8327
8328/* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8329 * @phba: Pointer to HBA context object.
8330 * @iocbq: Pointer to iocb object.
8331 *
8332 * The async_event handler calls this routine when it receives
8333 * an ASYNC_STATUS_CN event from the port. The port generates
8334 * this event when an Abort Sequence request to an rport fails
8335 * twice in succession. The abort could be originated by the
8336 * driver or by the port. The ABTS could have been for an ELS
8337 * or FCP IO. The port only generates this event when an ABTS
8338 * fails to complete after one retry.
8339 */
8340static void
8341lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
8342 struct lpfc_iocbq *iocbq)
8343{
8344 struct lpfc_nodelist *ndlp = NULL;
8345 uint16_t rpi = 0, vpi = 0;
8346 struct lpfc_vport *vport = NULL;
8347
8348 /* The rpi in the ulpContext is vport-sensitive. */
8349 vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
8350 rpi = iocbq->iocb.ulpContext;
8351
8352 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8353 "3092 Port generated ABTS async event "
8354 "on vpi %d rpi %d status 0x%x\n",
8355 vpi, rpi, iocbq->iocb.ulpStatus);
8356
8357 vport = lpfc_find_vport_by_vpid(phba, vpi);
8358 if (!vport)
8359 goto err_exit;
8360 ndlp = lpfc_findnode_rpi(vport, rpi);
8361 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
8362 goto err_exit;
8363
8364 if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
8365 lpfc_sli_abts_recover_port(vport, ndlp);
8366 return;
8367
8368 err_exit:
8369 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8370 "3095 Event Context not found, no "
8371 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8372 iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
8373 vpi, rpi);
8374}
8375
8376/* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8377 * @phba: pointer to HBA context object.
8378 * @ndlp: nodelist pointer for the impacted rport.
8379 * @axri: pointer to the wcqe containing the failed exchange.
8380 *
8381 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8382 * port. The port generates this event when an abort exchange request to an
8383 * rport fails twice in succession with no reply. The abort could be originated
8384 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8385 */
8386void
8387lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
8388 struct lpfc_nodelist *ndlp,
8389 struct sli4_wcqe_xri_aborted *axri)
8390{
8391 struct lpfc_vport *vport;
James Smart5c1db2a2012-03-01 22:34:36 -05008392 uint32_t ext_status = 0;
James Smartcb69f7d2011-12-13 13:21:57 -05008393
James Smart6b5151f2012-01-18 16:24:06 -05008394 if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
James Smartcb69f7d2011-12-13 13:21:57 -05008395 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8396 "3115 Node Context not found, driver "
8397 "ignoring abts err event\n");
James Smart6b5151f2012-01-18 16:24:06 -05008398 return;
8399 }
8400
James Smartcb69f7d2011-12-13 13:21:57 -05008401 vport = ndlp->vport;
8402 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8403 "3116 Port generated FCP XRI ABORT event on "
James Smart5c1db2a2012-03-01 22:34:36 -05008404 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
James Smartcb69f7d2011-12-13 13:21:57 -05008405 ndlp->vport->vpi, ndlp->nlp_rpi,
8406 bf_get(lpfc_wcqe_xa_xri, axri),
James Smart5c1db2a2012-03-01 22:34:36 -05008407 bf_get(lpfc_wcqe_xa_status, axri),
8408 axri->parameter);
James Smartcb69f7d2011-12-13 13:21:57 -05008409
James Smart5c1db2a2012-03-01 22:34:36 -05008410 /*
8411 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8412 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8413 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8414 */
8415 ext_status = axri->parameter & WCQE_PARAM_MASK;
8416 if ((bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT) &&
8417 ((ext_status == IOERR_SEQUENCE_TIMEOUT) || (ext_status == 0)))
James Smartcb69f7d2011-12-13 13:21:57 -05008418 lpfc_sli_abts_recover_port(vport, ndlp);
8419}
8420
James Smarte59058c2008-08-24 21:49:00 -04008421/**
James Smart3621a712009-04-06 18:47:14 -04008422 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04008423 * @phba: Pointer to HBA context object.
8424 * @pring: Pointer to driver SLI ring object.
8425 * @iocbq: Pointer to iocb object.
8426 *
8427 * This function is called by the slow ring event handler
8428 * function when there is an ASYNC event iocb in the ring.
8429 * This function is called with no lock held.
8430 * Currently this function handles only temperature related
8431 * ASYNC events. The function decodes the temperature sensor
8432 * event message and posts events for the management applications.
8433 **/
James Smart98c9ea52007-10-27 13:37:33 -04008434static void
James Smart57127f12007-10-27 13:37:05 -04008435lpfc_sli_async_event_handler(struct lpfc_hba * phba,
8436 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
8437{
8438 IOCB_t *icmd;
8439 uint16_t evt_code;
James Smart57127f12007-10-27 13:37:05 -04008440 struct temp_event temp_event_data;
8441 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04008442 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04008443
8444 icmd = &iocbq->iocb;
8445 evt_code = icmd->un.asyncstat.evt_code;
James Smart57127f12007-10-27 13:37:05 -04008446
James Smartcb69f7d2011-12-13 13:21:57 -05008447 switch (evt_code) {
8448 case ASYNC_TEMP_WARN:
8449 case ASYNC_TEMP_SAFE:
8450 temp_event_data.data = (uint32_t) icmd->ulpContext;
8451 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
8452 if (evt_code == ASYNC_TEMP_WARN) {
8453 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
8454 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8455 "0347 Adapter is very hot, please take "
8456 "corrective action. temperature : %d Celsius\n",
8457 (uint32_t) icmd->ulpContext);
8458 } else {
8459 temp_event_data.event_code = LPFC_NORMAL_TEMP;
8460 lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
8461 "0340 Adapter temperature is OK now. "
8462 "temperature : %d Celsius\n",
8463 (uint32_t) icmd->ulpContext);
8464 }
8465
8466 /* Send temperature change event to applications */
8467 shost = lpfc_shost_from_vport(phba->pport);
8468 fc_host_post_vendor_event(shost, fc_get_event_number(),
8469 sizeof(temp_event_data), (char *) &temp_event_data,
8470 LPFC_NL_VENDOR_ID);
8471 break;
8472 case ASYNC_STATUS_CN:
8473 lpfc_sli_abts_err_handler(phba, iocbq);
8474 break;
8475 default:
James Smarta257bf92009-04-06 18:48:10 -04008476 iocb_w = (uint32_t *) icmd;
James Smartcb69f7d2011-12-13 13:21:57 -05008477 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04008478 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04008479 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04008480 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8481 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8482 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8483 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smartcb69f7d2011-12-13 13:21:57 -05008484 pring->ringno, icmd->un.asyncstat.evt_code,
James Smarta257bf92009-04-06 18:48:10 -04008485 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
8486 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
8487 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
8488 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
8489
James Smartcb69f7d2011-12-13 13:21:57 -05008490 break;
James Smart57127f12007-10-27 13:37:05 -04008491 }
James Smart57127f12007-10-27 13:37:05 -04008492}
8493
8494
James Smarte59058c2008-08-24 21:49:00 -04008495/**
James Smart3621a712009-04-06 18:47:14 -04008496 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04008497 * @phba: Pointer to HBA context object.
8498 *
8499 * lpfc_sli_setup sets up rings of the SLI interface with
8500 * number of iocbs per ring and iotags. This function is
8501 * called while driver attach to the HBA and before the
8502 * interrupts are enabled. So there is no need for locking.
8503 *
8504 * This function always returns 0.
8505 **/
dea31012005-04-17 16:05:31 -05008506int
8507lpfc_sli_setup(struct lpfc_hba *phba)
8508{
James Smarted957682007-06-17 19:56:37 -05008509 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05008510 struct lpfc_sli *psli = &phba->sli;
8511 struct lpfc_sli_ring *pring;
8512
8513 psli->num_rings = MAX_CONFIGURED_RINGS;
8514 psli->sli_flag = 0;
8515 psli->fcp_ring = LPFC_FCP_RING;
8516 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05008517 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05008518
James Bottomley604a3e32005-10-29 10:28:33 -05008519 psli->iocbq_lookup = NULL;
8520 psli->iocbq_lookup_len = 0;
8521 psli->last_iotag = 0;
8522
dea31012005-04-17 16:05:31 -05008523 for (i = 0; i < psli->num_rings; i++) {
8524 pring = &psli->ring[i];
8525 switch (i) {
8526 case LPFC_FCP_RING: /* ring 0 - FCP */
8527 /* numCiocb and numRiocb are used in config_port */
8528 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
8529 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
8530 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
8531 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
8532 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
8533 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05008534 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008535 SLI3_IOCB_CMD_SIZE :
8536 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05008537 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008538 SLI3_IOCB_RSP_SIZE :
8539 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05008540 pring->iotag_ctr = 0;
8541 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05008542 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05008543 pring->fast_iotag = pring->iotag_max;
8544 pring->num_mask = 0;
8545 break;
James Smarta4bc3372006-12-02 13:34:16 -05008546 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05008547 /* numCiocb and numRiocb are used in config_port */
8548 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
8549 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05008550 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008551 SLI3_IOCB_CMD_SIZE :
8552 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05008553 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008554 SLI3_IOCB_RSP_SIZE :
8555 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05008556 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05008557 pring->num_mask = 0;
8558 break;
8559 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
8560 /* numCiocb and numRiocb are used in config_port */
8561 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
8562 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05008563 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008564 SLI3_IOCB_CMD_SIZE :
8565 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05008566 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05008567 SLI3_IOCB_RSP_SIZE :
8568 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05008569 pring->fast_iotag = 0;
8570 pring->iotag_ctr = 0;
8571 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04008572 pring->lpfc_sli_rcv_async_status =
8573 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04008574 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05008575 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04008576 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
8577 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05008578 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05008579 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05008580 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04008581 pring->prt[1].rctl = FC_RCTL_ELS_REP;
8582 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05008583 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05008584 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05008585 pring->prt[2].profile = 0; /* Mask 2 */
8586 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04008587 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05008588 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04008589 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05008590 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05008591 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05008592 pring->prt[3].profile = 0; /* Mask 3 */
8593 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04008594 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05008595 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04008596 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05008597 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05008598 lpfc_ct_unsol_event;
James Smart6669f9b2009-10-02 15:16:45 -04008599 /* abort unsolicited sequence */
8600 pring->prt[4].profile = 0; /* Mask 4 */
8601 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
8602 pring->prt[4].type = FC_TYPE_BLS;
8603 pring->prt[4].lpfc_sli_rcv_unsol_event =
8604 lpfc_sli4_ct_abort_unsol_event;
dea31012005-04-17 16:05:31 -05008605 break;
8606 }
James Smarted957682007-06-17 19:56:37 -05008607 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
James Smart92d7f7b2007-06-17 19:56:38 -05008608 (pring->numRiocb * pring->sizeRiocb);
dea31012005-04-17 16:05:31 -05008609 }
James Smarted957682007-06-17 19:56:37 -05008610 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05008611 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04008612 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
8613 "SLI2 SLIM Data: x%x x%lx\n",
8614 phba->brd_no, totiocbsize,
8615 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05008616 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05008617 if (phba->cfg_multi_ring_support == 2)
8618 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05008619
8620 return 0;
8621}
8622
James Smarte59058c2008-08-24 21:49:00 -04008623/**
James Smart3621a712009-04-06 18:47:14 -04008624 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04008625 * @phba: Pointer to HBA context object.
8626 *
8627 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8628 * ring. This function also initializes ring indices of each ring.
8629 * This function is called during the initialization of the SLI
8630 * interface of an HBA.
8631 * This function is called with no lock held and always returns
8632 * 1.
8633 **/
dea31012005-04-17 16:05:31 -05008634int
James Smart2e0fef82007-06-17 19:56:36 -05008635lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05008636{
8637 struct lpfc_sli *psli;
8638 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05008639 int i;
dea31012005-04-17 16:05:31 -05008640
8641 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05008642 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05008643 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05008644 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05008645 /* Initialize list headers for txq and txcmplq as double linked lists */
8646 for (i = 0; i < psli->num_rings; i++) {
8647 pring = &psli->ring[i];
8648 pring->ringno = i;
8649 pring->next_cmdidx = 0;
8650 pring->local_getidx = 0;
8651 pring->cmdidx = 0;
8652 INIT_LIST_HEAD(&pring->txq);
8653 INIT_LIST_HEAD(&pring->txcmplq);
8654 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05008655 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05008656 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05008657 }
James Smart2e0fef82007-06-17 19:56:36 -05008658 spin_unlock_irq(&phba->hbalock);
8659 return 1;
dea31012005-04-17 16:05:31 -05008660}
8661
James Smarte59058c2008-08-24 21:49:00 -04008662/**
James Smart04c68492009-05-22 14:52:52 -04008663 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8664 * @phba: Pointer to HBA context object.
8665 *
8666 * This routine flushes the mailbox command subsystem. It will unconditionally
8667 * flush all the mailbox commands in the three possible stages in the mailbox
8668 * command sub-system: pending mailbox command queue; the outstanding mailbox
8669 * command; and completed mailbox command queue. It is caller's responsibility
8670 * to make sure that the driver is in the proper state to flush the mailbox
8671 * command sub-system. Namely, the posting of mailbox commands into the
8672 * pending mailbox command queue from the various clients must be stopped;
8673 * either the HBA is in a state that it will never works on the outstanding
8674 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8675 * mailbox command has been completed.
8676 **/
8677static void
8678lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
8679{
8680 LIST_HEAD(completions);
8681 struct lpfc_sli *psli = &phba->sli;
8682 LPFC_MBOXQ_t *pmb;
8683 unsigned long iflag;
8684
8685 /* Flush all the mailbox commands in the mbox system */
8686 spin_lock_irqsave(&phba->hbalock, iflag);
8687 /* The pending mailbox command queue */
8688 list_splice_init(&phba->sli.mboxq, &completions);
8689 /* The outstanding active mailbox command */
8690 if (psli->mbox_active) {
8691 list_add_tail(&psli->mbox_active->list, &completions);
8692 psli->mbox_active = NULL;
8693 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8694 }
8695 /* The completed mailbox command queue */
8696 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
8697 spin_unlock_irqrestore(&phba->hbalock, iflag);
8698
8699 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
8700 while (!list_empty(&completions)) {
8701 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
8702 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
8703 if (pmb->mbox_cmpl)
8704 pmb->mbox_cmpl(phba, pmb);
8705 }
8706}
8707
8708/**
James Smart3621a712009-04-06 18:47:14 -04008709 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04008710 * @vport: Pointer to virtual port object.
8711 *
8712 * lpfc_sli_host_down is called to clean up the resources
8713 * associated with a vport before destroying virtual
8714 * port data structures.
8715 * This function does following operations:
8716 * - Free discovery resources associated with this virtual
8717 * port.
8718 * - Free iocbs associated with this virtual port in
8719 * the txq.
8720 * - Send abort for all iocb commands associated with this
8721 * vport in txcmplq.
8722 *
8723 * This function is called with no lock held and always returns 1.
8724 **/
dea31012005-04-17 16:05:31 -05008725int
James Smart92d7f7b2007-06-17 19:56:38 -05008726lpfc_sli_host_down(struct lpfc_vport *vport)
8727{
James Smart858c9f62007-06-17 19:56:39 -05008728 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05008729 struct lpfc_hba *phba = vport->phba;
8730 struct lpfc_sli *psli = &phba->sli;
8731 struct lpfc_sli_ring *pring;
8732 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05008733 int i;
8734 unsigned long flags = 0;
8735 uint16_t prev_pring_flag;
8736
8737 lpfc_cleanup_discovery_resources(vport);
8738
8739 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05008740 for (i = 0; i < psli->num_rings; i++) {
8741 pring = &psli->ring[i];
8742 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04008743 /* Only slow rings */
8744 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05008745 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04008746 /* Set the lpfc data pending flag */
8747 set_bit(LPFC_DATA_READY, &phba->data_flags);
8748 }
James Smart92d7f7b2007-06-17 19:56:38 -05008749 /*
8750 * Error everything on the txq since these iocbs have not been
8751 * given to the FW yet.
8752 */
James Smart92d7f7b2007-06-17 19:56:38 -05008753 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
8754 if (iocb->vport != vport)
8755 continue;
James Smart858c9f62007-06-17 19:56:39 -05008756 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05008757 pring->txq_cnt--;
James Smart92d7f7b2007-06-17 19:56:38 -05008758 }
8759
8760 /* Next issue ABTS for everything on the txcmplq */
8761 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
8762 list) {
8763 if (iocb->vport != vport)
8764 continue;
8765 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
8766 }
8767
8768 pring->flag = prev_pring_flag;
8769 }
8770
8771 spin_unlock_irqrestore(&phba->hbalock, flags);
8772
James Smarta257bf92009-04-06 18:48:10 -04008773 /* Cancel all the IOCBs from the completions list */
8774 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8775 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05008776 return 1;
8777}
8778
James Smarte59058c2008-08-24 21:49:00 -04008779/**
James Smart3621a712009-04-06 18:47:14 -04008780 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04008781 * @phba: Pointer to HBA context object.
8782 *
8783 * This function cleans up all iocb, buffers, mailbox commands
8784 * while shutting down the HBA. This function is called with no
8785 * lock held and always returns 1.
8786 * This function does the following to cleanup driver resources:
8787 * - Free discovery resources for each virtual port
8788 * - Cleanup any pending fabric iocbs
8789 * - Iterate through the iocb txq and free each entry
8790 * in the list.
8791 * - Free up any buffer posted to the HBA
8792 * - Free mailbox commands in the mailbox queue.
8793 **/
James Smart92d7f7b2007-06-17 19:56:38 -05008794int
James Smart2e0fef82007-06-17 19:56:36 -05008795lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05008796{
James Smart2534ba72007-04-25 09:52:20 -04008797 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05008798 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05008799 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05008800 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05008801 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04008802 int i;
8803
8804 /* Shutdown the mailbox command sub-system */
8805 lpfc_sli_mbox_sys_shutdown(phba);
dea31012005-04-17 16:05:31 -05008806
dea31012005-04-17 16:05:31 -05008807 lpfc_hba_down_prep(phba);
8808
James Smart92d7f7b2007-06-17 19:56:38 -05008809 lpfc_fabric_abort_hba(phba);
8810
James Smart2e0fef82007-06-17 19:56:36 -05008811 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05008812 for (i = 0; i < psli->num_rings; i++) {
8813 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04008814 /* Only slow rings */
8815 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05008816 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04008817 /* Set the lpfc data pending flag */
8818 set_bit(LPFC_DATA_READY, &phba->data_flags);
8819 }
dea31012005-04-17 16:05:31 -05008820
8821 /*
8822 * Error everything on the txq since these iocbs have not been
8823 * given to the FW yet.
8824 */
James Smart2534ba72007-04-25 09:52:20 -04008825 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05008826 pring->txq_cnt = 0;
8827
dea31012005-04-17 16:05:31 -05008828 }
James Smart2e0fef82007-06-17 19:56:36 -05008829 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05008830
James Smarta257bf92009-04-06 18:48:10 -04008831 /* Cancel all the IOCBs from the completions list */
8832 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
8833 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04008834
James Smart0ff10d42008-01-11 01:52:36 -05008835 spin_lock_irqsave(&phba->hbalock, flags);
8836 list_splice_init(&phba->elsbuf, &completions);
8837 phba->elsbuf_cnt = 0;
8838 phba->elsbuf_prev_cnt = 0;
8839 spin_unlock_irqrestore(&phba->hbalock, flags);
8840
8841 while (!list_empty(&completions)) {
8842 list_remove_head(&completions, buf_ptr,
8843 struct lpfc_dmabuf, list);
8844 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
8845 kfree(buf_ptr);
8846 }
8847
dea31012005-04-17 16:05:31 -05008848 /* Return any active mbox cmds */
8849 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05008850
James Smartda0436e2009-05-22 14:51:39 -04008851 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05008852 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04008853 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05008854
James Smartda0436e2009-05-22 14:51:39 -04008855 return 1;
8856}
James Smart92d7f7b2007-06-17 19:56:38 -05008857
James Smartda0436e2009-05-22 14:51:39 -04008858/**
James Smart3621a712009-04-06 18:47:14 -04008859 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04008860 * @srcp: Source memory pointer.
8861 * @destp: Destination memory pointer.
8862 * @cnt: Number of words required to be copied.
8863 *
8864 * This function is used for copying data between driver memory
8865 * and the SLI memory. This function also changes the endianness
8866 * of each word if native endianness is different from SLI
8867 * endianness. This function can be called with or without
8868 * lock.
8869 **/
dea31012005-04-17 16:05:31 -05008870void
8871lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
8872{
8873 uint32_t *src = srcp;
8874 uint32_t *dest = destp;
8875 uint32_t ldata;
8876 int i;
8877
8878 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
8879 ldata = *src;
8880 ldata = le32_to_cpu(ldata);
8881 *dest = ldata;
8882 src++;
8883 dest++;
8884 }
8885}
8886
James Smarte59058c2008-08-24 21:49:00 -04008887
8888/**
James Smarta0c87cb2009-07-19 10:01:10 -04008889 * lpfc_sli_bemem_bcopy - SLI memory copy function
8890 * @srcp: Source memory pointer.
8891 * @destp: Destination memory pointer.
8892 * @cnt: Number of words required to be copied.
8893 *
8894 * This function is used for copying data between a data structure
8895 * with big endian representation to local endianness.
8896 * This function can be called with or without lock.
8897 **/
8898void
8899lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
8900{
8901 uint32_t *src = srcp;
8902 uint32_t *dest = destp;
8903 uint32_t ldata;
8904 int i;
8905
8906 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
8907 ldata = *src;
8908 ldata = be32_to_cpu(ldata);
8909 *dest = ldata;
8910 src++;
8911 dest++;
8912 }
8913}
8914
8915/**
James Smart3621a712009-04-06 18:47:14 -04008916 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04008917 * @phba: Pointer to HBA context object.
8918 * @pring: Pointer to driver SLI ring object.
8919 * @mp: Pointer to driver buffer object.
8920 *
8921 * This function is called with no lock held.
8922 * It always return zero after adding the buffer to the postbufq
8923 * buffer list.
8924 **/
dea31012005-04-17 16:05:31 -05008925int
James Smart2e0fef82007-06-17 19:56:36 -05008926lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8927 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05008928{
8929 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
8930 later */
James Smart2e0fef82007-06-17 19:56:36 -05008931 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05008932 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05008933 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05008934 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05008935 return 0;
8936}
8937
James Smarte59058c2008-08-24 21:49:00 -04008938/**
James Smart3621a712009-04-06 18:47:14 -04008939 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04008940 * @phba: Pointer to HBA context object.
8941 *
8942 * When HBQ is enabled, buffers are searched based on tags. This function
8943 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
8944 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
8945 * does not conflict with tags of buffer posted for unsolicited events.
8946 * The function returns the allocated tag. The function is called with
8947 * no locks held.
8948 **/
James Smart76bb24e2007-10-27 13:38:00 -04008949uint32_t
8950lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
8951{
8952 spin_lock_irq(&phba->hbalock);
8953 phba->buffer_tag_count++;
8954 /*
8955 * Always set the QUE_BUFTAG_BIT to distiguish between
8956 * a tag assigned by HBQ.
8957 */
8958 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
8959 spin_unlock_irq(&phba->hbalock);
8960 return phba->buffer_tag_count;
8961}
8962
James Smarte59058c2008-08-24 21:49:00 -04008963/**
James Smart3621a712009-04-06 18:47:14 -04008964 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04008965 * @phba: Pointer to HBA context object.
8966 * @pring: Pointer to driver SLI ring object.
8967 * @tag: Buffer tag.
8968 *
8969 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
8970 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
8971 * iocb is posted to the response ring with the tag of the buffer.
8972 * This function searches the pring->postbufq list using the tag
8973 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
8974 * iocb. If the buffer is found then lpfc_dmabuf object of the
8975 * buffer is returned to the caller else NULL is returned.
8976 * This function is called with no lock held.
8977 **/
James Smart76bb24e2007-10-27 13:38:00 -04008978struct lpfc_dmabuf *
8979lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
8980 uint32_t tag)
8981{
8982 struct lpfc_dmabuf *mp, *next_mp;
8983 struct list_head *slp = &pring->postbufq;
8984
Lucas De Marchi25985ed2011-03-30 22:57:33 -03008985 /* Search postbufq, from the beginning, looking for a match on tag */
James Smart76bb24e2007-10-27 13:38:00 -04008986 spin_lock_irq(&phba->hbalock);
8987 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
8988 if (mp->buffer_tag == tag) {
8989 list_del_init(&mp->list);
8990 pring->postbufq_cnt--;
8991 spin_unlock_irq(&phba->hbalock);
8992 return mp;
8993 }
8994 }
8995
8996 spin_unlock_irq(&phba->hbalock);
8997 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04008998 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04008999 "ring %d Data x%lx x%p x%p x%x\n",
9000 pring->ringno, (unsigned long) tag,
9001 slp->next, slp->prev, pring->postbufq_cnt);
9002
9003 return NULL;
9004}
dea31012005-04-17 16:05:31 -05009005
James Smarte59058c2008-08-24 21:49:00 -04009006/**
James Smart3621a712009-04-06 18:47:14 -04009007 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04009008 * @phba: Pointer to HBA context object.
9009 * @pring: Pointer to driver SLI ring object.
9010 * @phys: DMA address of the buffer.
9011 *
9012 * This function searches the buffer list using the dma_address
9013 * of unsolicited event to find the driver's lpfc_dmabuf object
9014 * corresponding to the dma_address. The function returns the
9015 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9016 * This function is called by the ct and els unsolicited event
9017 * handlers to get the buffer associated with the unsolicited
9018 * event.
9019 *
9020 * This function is called with no lock held.
9021 **/
dea31012005-04-17 16:05:31 -05009022struct lpfc_dmabuf *
9023lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9024 dma_addr_t phys)
9025{
9026 struct lpfc_dmabuf *mp, *next_mp;
9027 struct list_head *slp = &pring->postbufq;
9028
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009029 /* Search postbufq, from the beginning, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05009030 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009031 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
9032 if (mp->phys == phys) {
9033 list_del_init(&mp->list);
9034 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05009035 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009036 return mp;
9037 }
9038 }
9039
James Smart2e0fef82007-06-17 19:56:36 -05009040 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05009041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04009042 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05009043 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04009044 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05009045 slp->next, slp->prev, pring->postbufq_cnt);
9046 return NULL;
9047}
9048
James Smarte59058c2008-08-24 21:49:00 -04009049/**
James Smart3621a712009-04-06 18:47:14 -04009050 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04009051 * @phba: Pointer to HBA context object.
9052 * @cmdiocb: Pointer to driver command iocb object.
9053 * @rspiocb: Pointer to driver response iocb object.
9054 *
9055 * This function is the completion handler for the abort iocbs for
9056 * ELS commands. This function is called from the ELS ring event
9057 * handler with no lock held. This function frees memory resources
9058 * associated with the abort iocb.
9059 **/
dea31012005-04-17 16:05:31 -05009060static void
James Smart2e0fef82007-06-17 19:56:36 -05009061lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9062 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05009063{
James Smart2e0fef82007-06-17 19:56:36 -05009064 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04009065 uint16_t abort_iotag, abort_context;
James Smartff78d8f2011-12-13 13:21:35 -05009066 struct lpfc_iocbq *abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04009067
9068 if (irsp->ulpStatus) {
James Smartff78d8f2011-12-13 13:21:35 -05009069
9070 /*
9071 * Assume that the port already completed and returned, or
9072 * will return the iocb. Just Log the message.
9073 */
James Smart2680eea2007-04-25 09:52:55 -04009074 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
9075 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
9076
James Smart2e0fef82007-06-17 19:56:36 -05009077 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -04009078 if (phba->sli_rev < LPFC_SLI_REV4) {
9079 if (abort_iotag != 0 &&
9080 abort_iotag <= phba->sli.last_iotag)
9081 abort_iocb =
9082 phba->sli.iocbq_lookup[abort_iotag];
9083 } else
9084 /* For sli4 the abort_tag is the XRI,
9085 * so the abort routine puts the iotag of the iocb
9086 * being aborted in the context field of the abort
9087 * IOCB.
9088 */
9089 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -04009090
James Smart2a9bf3d2010-06-07 15:24:45 -04009091 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
9092 "0327 Cannot abort els iocb %p "
9093 "with tag %x context %x, abort status %x, "
9094 "abort code %x\n",
9095 abort_iocb, abort_iotag, abort_context,
9096 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart2680eea2007-04-25 09:52:55 -04009097
James Smartff78d8f2011-12-13 13:21:35 -05009098 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04009099 }
James Bottomley604a3e32005-10-29 10:28:33 -05009100 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05009101 return;
9102}
9103
James Smarte59058c2008-08-24 21:49:00 -04009104/**
James Smart3621a712009-04-06 18:47:14 -04009105 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04009106 * @phba: Pointer to HBA context object.
9107 * @cmdiocb: Pointer to driver command iocb object.
9108 * @rspiocb: Pointer to driver response iocb object.
9109 *
9110 * The function is called from SLI ring event handler with no
9111 * lock held. This function is the completion handler for ELS commands
9112 * which are aborted. The function frees memory resources used for
9113 * the aborted ELS commands.
9114 **/
James Smart92d7f7b2007-06-17 19:56:38 -05009115static void
9116lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9117 struct lpfc_iocbq *rspiocb)
9118{
9119 IOCB_t *irsp = &rspiocb->iocb;
9120
9121 /* ELS cmd tag <ulpIoTag> completes */
9122 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04009123 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05009124 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04009125 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05009126 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05009127 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
9128 lpfc_ct_free_iocb(phba, cmdiocb);
9129 else
9130 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05009131 return;
9132}
9133
James Smarte59058c2008-08-24 21:49:00 -04009134/**
James Smart5af5eee2010-10-22 11:06:38 -04009135 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04009136 * @phba: Pointer to HBA context object.
9137 * @pring: Pointer to driver SLI ring object.
9138 * @cmdiocb: Pointer to driver command iocb object.
9139 *
James Smart5af5eee2010-10-22 11:06:38 -04009140 * This function issues an abort iocb for the provided command iocb down to
9141 * the port. Other than the case the outstanding command iocb is an abort
9142 * request, this function issues abort out unconditionally. This function is
9143 * called with hbalock held. The function returns 0 when it fails due to
9144 * memory allocation failure or when the command iocb is an abort request.
James Smarte59058c2008-08-24 21:49:00 -04009145 **/
James Smart5af5eee2010-10-22 11:06:38 -04009146static int
9147lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05009148 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05009149{
James Smart2e0fef82007-06-17 19:56:36 -05009150 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009151 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05009152 IOCB_t *icmd = NULL;
9153 IOCB_t *iabt = NULL;
James Smart5af5eee2010-10-22 11:06:38 -04009154 int retval;
James Smart07951072007-04-25 09:51:38 -04009155
James Smart92d7f7b2007-06-17 19:56:38 -05009156 /*
9157 * There are certain command types we don't want to abort. And we
9158 * don't want to abort commands that are already in the process of
9159 * being aborted.
James Smart07951072007-04-25 09:51:38 -04009160 */
9161 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05009162 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05009163 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9164 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04009165 return 0;
9166
dea31012005-04-17 16:05:31 -05009167 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05009168 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05009169 if (abtsiocbp == NULL)
9170 return 0;
dea31012005-04-17 16:05:31 -05009171
James Smart07951072007-04-25 09:51:38 -04009172 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -05009173 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -04009174 */
9175 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
9176
dea31012005-04-17 16:05:31 -05009177 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04009178 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
9179 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -04009180 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04009181 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -04009182 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
9183 }
James Smartda0436e2009-05-22 14:51:39 -04009184 else
9185 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05009186 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04009187 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05009188
James Smart5ffc2662009-11-18 15:39:44 -05009189 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9190 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05009191 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
9192 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05009193
James Smart2e0fef82007-06-17 19:56:36 -05009194 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04009195 iabt->ulpCommand = CMD_ABORT_XRI_CN;
9196 else
9197 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
9198
9199 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04009200
James Smarte8b62012007-08-02 11:10:09 -04009201 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
9202 "0339 Abort xri x%x, original iotag x%x, "
9203 "abort cmd iotag x%x\n",
James Smart2a9bf3d2010-06-07 15:24:45 -04009204 iabt->un.acxri.abortIoTag,
James Smarte8b62012007-08-02 11:10:09 -04009205 iabt->un.acxri.abortContextTag,
James Smart2a9bf3d2010-06-07 15:24:45 -04009206 abtsiocbp->iotag);
James Smartda0436e2009-05-22 14:51:39 -04009207 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
James Smart07951072007-04-25 09:51:38 -04009208
James Smartd7c255b2008-08-24 21:50:00 -04009209 if (retval)
9210 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart5af5eee2010-10-22 11:06:38 -04009211
9212 /*
9213 * Caller to this routine should check for IOCB_ERROR
9214 * and handle it properly. This routine no longer removes
9215 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9216 */
9217 return retval;
9218}
9219
9220/**
9221 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9222 * @phba: Pointer to HBA context object.
9223 * @pring: Pointer to driver SLI ring object.
9224 * @cmdiocb: Pointer to driver command iocb object.
9225 *
9226 * This function issues an abort iocb for the provided command iocb. In case
9227 * of unloading, the abort iocb will not be issued to commands on the ELS
9228 * ring. Instead, the callback function shall be changed to those commands
9229 * so that nothing happens when them finishes. This function is called with
9230 * hbalock held. The function returns 0 when the command iocb is an abort
9231 * request.
9232 **/
9233int
9234lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
9235 struct lpfc_iocbq *cmdiocb)
9236{
9237 struct lpfc_vport *vport = cmdiocb->vport;
9238 int retval = IOCB_ERROR;
9239 IOCB_t *icmd = NULL;
9240
9241 /*
9242 * There are certain command types we don't want to abort. And we
9243 * don't want to abort commands that are already in the process of
9244 * being aborted.
9245 */
9246 icmd = &cmdiocb->iocb;
9247 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
9248 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
9249 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
9250 return 0;
9251
9252 /*
9253 * If we're unloading, don't abort iocb on the ELS ring, but change
9254 * the callback so that nothing happens when it finishes.
9255 */
9256 if ((vport->load_flag & FC_UNLOADING) &&
9257 (pring->ringno == LPFC_ELS_RING)) {
9258 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
9259 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
9260 else
9261 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
9262 goto abort_iotag_exit;
9263 }
9264
9265 /* Now, we try to issue the abort to the cmdiocb out */
9266 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
9267
James Smart07951072007-04-25 09:51:38 -04009268abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05009269 /*
9270 * Caller to this routine should check for IOCB_ERROR
9271 * and handle it properly. This routine no longer removes
9272 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04009273 */
James Smart2e0fef82007-06-17 19:56:36 -05009274 return retval;
dea31012005-04-17 16:05:31 -05009275}
9276
James Smarte59058c2008-08-24 21:49:00 -04009277/**
James Smart5af5eee2010-10-22 11:06:38 -04009278 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9279 * @phba: Pointer to HBA context object.
9280 * @pring: Pointer to driver SLI ring object.
9281 *
9282 * This function aborts all iocbs in the given ring and frees all the iocb
9283 * objects in txq. This function issues abort iocbs unconditionally for all
9284 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9285 * to complete before the return of this function. The caller is not required
9286 * to hold any locks.
9287 **/
9288static void
9289lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
9290{
9291 LIST_HEAD(completions);
9292 struct lpfc_iocbq *iocb, *next_iocb;
9293
9294 if (pring->ringno == LPFC_ELS_RING)
9295 lpfc_fabric_abort_hba(phba);
9296
9297 spin_lock_irq(&phba->hbalock);
9298
9299 /* Take off all the iocbs on txq for cancelling */
9300 list_splice_init(&pring->txq, &completions);
9301 pring->txq_cnt = 0;
9302
9303 /* Next issue ABTS for everything on the txcmplq */
9304 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
9305 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
9306
9307 spin_unlock_irq(&phba->hbalock);
9308
9309 /* Cancel all the IOCBs from the completions list */
9310 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
9311 IOERR_SLI_ABORTED);
9312}
9313
9314/**
9315 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9316 * @phba: pointer to lpfc HBA data structure.
9317 *
9318 * This routine will abort all pending and outstanding iocbs to an HBA.
9319 **/
9320void
9321lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
9322{
9323 struct lpfc_sli *psli = &phba->sli;
9324 struct lpfc_sli_ring *pring;
9325 int i;
9326
9327 for (i = 0; i < psli->num_rings; i++) {
9328 pring = &psli->ring[i];
9329 lpfc_sli_iocb_ring_abort(phba, pring);
9330 }
9331}
9332
9333/**
James Smart3621a712009-04-06 18:47:14 -04009334 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04009335 * @iocbq: Pointer to driver iocb object.
9336 * @vport: Pointer to driver virtual port object.
9337 * @tgt_id: SCSI ID of the target.
9338 * @lun_id: LUN ID of the scsi device.
9339 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9340 *
James Smart3621a712009-04-06 18:47:14 -04009341 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04009342 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9343 * 0 if the filtering criteria is met for the given iocb and will return
9344 * 1 if the filtering criteria is not met.
9345 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9346 * given iocb is for the SCSI device specified by vport, tgt_id and
9347 * lun_id parameter.
9348 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9349 * given iocb is for the SCSI target specified by vport and tgt_id
9350 * parameters.
9351 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9352 * given iocb is for the SCSI host associated with the given vport.
9353 * This function is called with no locks held.
9354 **/
dea31012005-04-17 16:05:31 -05009355static int
James Smart51ef4c22007-08-02 11:10:31 -04009356lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
9357 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009358 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05009359{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009360 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05009361 int rc = 1;
9362
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009363 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
9364 return rc;
9365
James Smart51ef4c22007-08-02 11:10:31 -04009366 if (iocbq->vport != vport)
9367 return rc;
9368
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009369 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009370
James Smart495a7142008-06-14 22:52:59 -04009371 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05009372 return rc;
9373
9374 switch (ctx_cmd) {
9375 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04009376 if ((lpfc_cmd->rdata->pnode) &&
9377 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
9378 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05009379 rc = 0;
9380 break;
9381 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04009382 if ((lpfc_cmd->rdata->pnode) &&
9383 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05009384 rc = 0;
9385 break;
dea31012005-04-17 16:05:31 -05009386 case LPFC_CTX_HOST:
9387 rc = 0;
9388 break;
9389 default:
9390 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07009391 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05009392 break;
9393 }
9394
9395 return rc;
9396}
9397
James Smarte59058c2008-08-24 21:49:00 -04009398/**
James Smart3621a712009-04-06 18:47:14 -04009399 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04009400 * @vport: Pointer to virtual port.
9401 * @tgt_id: SCSI ID of the target.
9402 * @lun_id: LUN ID of the scsi device.
9403 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9404 *
9405 * This function returns number of FCP commands pending for the vport.
9406 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9407 * commands pending on the vport associated with SCSI device specified
9408 * by tgt_id and lun_id parameters.
9409 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9410 * commands pending on the vport associated with SCSI target specified
9411 * by tgt_id parameter.
9412 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9413 * commands pending on the vport.
9414 * This function returns the number of iocbs which satisfy the filter.
9415 * This function is called without any lock held.
9416 **/
dea31012005-04-17 16:05:31 -05009417int
James Smart51ef4c22007-08-02 11:10:31 -04009418lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
9419 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05009420{
James Smart51ef4c22007-08-02 11:10:31 -04009421 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009422 struct lpfc_iocbq *iocbq;
9423 int sum, i;
dea31012005-04-17 16:05:31 -05009424
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009425 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
9426 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05009427
James Smart51ef4c22007-08-02 11:10:31 -04009428 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
9429 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009430 sum++;
dea31012005-04-17 16:05:31 -05009431 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009432
dea31012005-04-17 16:05:31 -05009433 return sum;
9434}
9435
James Smarte59058c2008-08-24 21:49:00 -04009436/**
James Smart3621a712009-04-06 18:47:14 -04009437 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -04009438 * @phba: Pointer to HBA context object
9439 * @cmdiocb: Pointer to command iocb object.
9440 * @rspiocb: Pointer to response iocb object.
9441 *
9442 * This function is called when an aborted FCP iocb completes. This
9443 * function is called by the ring event handler with no lock held.
9444 * This function frees the iocb.
9445 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04009446void
James Smart2e0fef82007-06-17 19:56:36 -05009447lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
9448 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04009449{
James Smartcb69f7d2011-12-13 13:21:57 -05009450 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9451 "3096 ABORT_XRI_CN completing on xri x%x "
9452 "original iotag x%x, abort cmd iotag x%x "
9453 "status 0x%x, reason 0x%x\n",
9454 cmdiocb->iocb.un.acxri.abortContextTag,
9455 cmdiocb->iocb.un.acxri.abortIoTag,
9456 cmdiocb->iotag, rspiocb->iocb.ulpStatus,
9457 rspiocb->iocb.un.ulpWord[4]);
James Bottomley604a3e32005-10-29 10:28:33 -05009458 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04009459 return;
9460}
9461
James Smarte59058c2008-08-24 21:49:00 -04009462/**
James Smart3621a712009-04-06 18:47:14 -04009463 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -04009464 * @vport: Pointer to virtual port.
9465 * @pring: Pointer to driver SLI ring object.
9466 * @tgt_id: SCSI ID of the target.
9467 * @lun_id: LUN ID of the scsi device.
9468 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9469 *
9470 * This function sends an abort command for every SCSI command
9471 * associated with the given virtual port pending on the ring
9472 * filtered by lpfc_sli_validate_fcp_iocb function.
9473 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9474 * FCP iocbs associated with lun specified by tgt_id and lun_id
9475 * parameters
9476 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9477 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9478 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9479 * FCP iocbs associated with virtual port.
9480 * This function returns number of iocbs it failed to abort.
9481 * This function is called with no locks held.
9482 **/
dea31012005-04-17 16:05:31 -05009483int
James Smart51ef4c22007-08-02 11:10:31 -04009484lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
9485 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -05009486{
James Smart51ef4c22007-08-02 11:10:31 -04009487 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009488 struct lpfc_iocbq *iocbq;
9489 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05009490 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05009491 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009492 int i;
dea31012005-04-17 16:05:31 -05009493
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009494 for (i = 1; i <= phba->sli.last_iotag; i++) {
9495 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05009496
James Smart51ef4c22007-08-02 11:10:31 -04009497 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -05009498 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05009499 continue;
9500
9501 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009502 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05009503 if (abtsiocb == NULL) {
9504 errcnt++;
9505 continue;
9506 }
dea31012005-04-17 16:05:31 -05009507
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04009508 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05009509 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
9510 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04009511 if (phba->sli_rev == LPFC_SLI_REV4)
9512 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
9513 else
9514 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05009515 abtsiocb->iocb.ulpLe = 1;
9516 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smart2e0fef82007-06-17 19:56:36 -05009517 abtsiocb->vport = phba->pport;
dea31012005-04-17 16:05:31 -05009518
James Smart5ffc2662009-11-18 15:39:44 -05009519 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9520 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05009521 if (iocbq->iocb_flag & LPFC_IO_FCP)
9522 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05009523
James Smart2e0fef82007-06-17 19:56:36 -05009524 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -05009525 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
9526 else
9527 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
9528
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04009529 /* Setup callback routine and issue the command. */
9530 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -04009531 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
9532 abtsiocb, 0);
dea31012005-04-17 16:05:31 -05009533 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05009534 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05009535 errcnt++;
9536 continue;
9537 }
9538 }
9539
9540 return errcnt;
9541}
9542
James Smarte59058c2008-08-24 21:49:00 -04009543/**
James Smart3621a712009-04-06 18:47:14 -04009544 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -04009545 * @phba: Pointer to HBA context object.
9546 * @cmdiocbq: Pointer to command iocb.
9547 * @rspiocbq: Pointer to response iocb.
9548 *
9549 * This function is the completion handler for iocbs issued using
9550 * lpfc_sli_issue_iocb_wait function. This function is called by the
9551 * ring event handler function without any lock held. This function
9552 * can be called from both worker thread context and interrupt
9553 * context. This function also can be called from other thread which
9554 * cleans up the SLI layer objects.
9555 * This function copy the contents of the response iocb to the
9556 * response iocb memory object provided by the caller of
9557 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9558 * sleeps for the iocb completion.
9559 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009560static void
9561lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
9562 struct lpfc_iocbq *cmdiocbq,
9563 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05009564{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009565 wait_queue_head_t *pdone_q;
9566 unsigned long iflags;
James Smart0f65ff62010-02-26 14:14:23 -05009567 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05009568
James Smart2e0fef82007-06-17 19:56:36 -05009569 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009570 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
9571 if (cmdiocbq->context2 && rspiocbq)
9572 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
9573 &rspiocbq->iocb, sizeof(IOCB_t));
9574
James Smart0f65ff62010-02-26 14:14:23 -05009575 /* Set the exchange busy flag for task management commands */
9576 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
9577 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
9578 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
9579 cur_iocbq);
9580 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
9581 }
9582
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009583 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009584 if (pdone_q)
9585 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05009586 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -05009587 return;
9588}
9589
James Smarte59058c2008-08-24 21:49:00 -04009590/**
James Smartd11e31d2009-06-10 17:23:06 -04009591 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9592 * @phba: Pointer to HBA context object..
9593 * @piocbq: Pointer to command iocb.
9594 * @flag: Flag to test.
9595 *
9596 * This routine grabs the hbalock and then test the iocb_flag to
9597 * see if the passed in flag is set.
9598 * Returns:
9599 * 1 if flag is set.
9600 * 0 if flag is not set.
9601 **/
9602static int
9603lpfc_chk_iocb_flg(struct lpfc_hba *phba,
9604 struct lpfc_iocbq *piocbq, uint32_t flag)
9605{
9606 unsigned long iflags;
9607 int ret;
9608
9609 spin_lock_irqsave(&phba->hbalock, iflags);
9610 ret = piocbq->iocb_flag & flag;
9611 spin_unlock_irqrestore(&phba->hbalock, iflags);
9612 return ret;
9613
9614}
9615
9616/**
James Smart3621a712009-04-06 18:47:14 -04009617 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -04009618 * @phba: Pointer to HBA context object..
9619 * @pring: Pointer to sli ring.
9620 * @piocb: Pointer to command iocb.
9621 * @prspiocbq: Pointer to response iocb.
9622 * @timeout: Timeout in number of seconds.
9623 *
9624 * This function issues the iocb to firmware and waits for the
9625 * iocb to complete. If the iocb command is not
9626 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9627 * Caller should not free the iocb resources if this function
9628 * returns IOCB_TIMEDOUT.
9629 * The function waits for the iocb completion using an
9630 * non-interruptible wait.
9631 * This function will sleep while waiting for iocb completion.
9632 * So, this function should not be called from any context which
9633 * does not allow sleeping. Due to the same reason, this function
9634 * cannot be called with interrupt disabled.
9635 * This function assumes that the iocb completions occur while
9636 * this function sleep. So, this function cannot be called from
9637 * the thread which process iocb completion for this ring.
9638 * This function clears the iocb_flag of the iocb object before
9639 * issuing the iocb and the iocb completion handler sets this
9640 * flag and wakes this thread when the iocb completes.
9641 * The contents of the response iocb will be copied to prspiocbq
9642 * by the completion handler when the command completes.
9643 * This function returns IOCB_SUCCESS when success.
9644 * This function is called with no lock held.
9645 **/
dea31012005-04-17 16:05:31 -05009646int
James Smart2e0fef82007-06-17 19:56:36 -05009647lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -04009648 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -05009649 struct lpfc_iocbq *piocb,
9650 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009651 uint32_t timeout)
dea31012005-04-17 16:05:31 -05009652{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08009653 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009654 long timeleft, timeout_req = 0;
9655 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05009656 uint32_t creg_val;
James Smart2a9bf3d2010-06-07 15:24:45 -04009657 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
dea31012005-04-17 16:05:31 -05009658 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009659 * If the caller has provided a response iocbq buffer, then context2
9660 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05009661 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009662 if (prspiocbq) {
9663 if (piocb->context2)
9664 return IOCB_ERROR;
9665 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05009666 }
9667
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009668 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
9669 piocb->context_un.wait_queue = &done_q;
9670 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05009671
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05009672 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -05009673 if (lpfc_readl(phba->HCregaddr, &creg_val))
9674 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05009675 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
9676 writel(creg_val, phba->HCregaddr);
9677 readl(phba->HCregaddr); /* flush */
9678 }
9679
James Smart2a9bf3d2010-06-07 15:24:45 -04009680 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
9681 SLI_IOCB_RET_IOCB);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009682 if (retval == IOCB_SUCCESS) {
9683 timeout_req = timeout * HZ;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009684 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -04009685 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009686 timeout_req);
dea31012005-04-17 16:05:31 -05009687
James Smart7054a602007-04-25 09:52:34 -04009688 if (piocb->iocb_flag & LPFC_IO_WAKE) {
9689 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04009690 "0331 IOCB wake signaled\n");
James Smart7054a602007-04-25 09:52:34 -04009691 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009692 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04009693 "0338 IOCB wait timeout error - no "
9694 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009695 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04009696 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009697 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04009698 "0330 IOCB wake NOT set, "
9699 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009700 timeout, (timeleft / jiffies));
9701 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05009702 }
James Smart2a9bf3d2010-06-07 15:24:45 -04009703 } else if (retval == IOCB_BUSY) {
9704 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9705 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
9706 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
9707 return retval;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009708 } else {
9709 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04009710 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04009711 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009712 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05009713 }
9714
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05009715 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
James Smart9940b972011-03-11 16:06:12 -05009716 if (lpfc_readl(phba->HCregaddr, &creg_val))
9717 return IOCB_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05009718 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
9719 writel(creg_val, phba->HCregaddr);
9720 readl(phba->HCregaddr); /* flush */
9721 }
9722
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009723 if (prspiocbq)
9724 piocb->context2 = NULL;
9725
9726 piocb->context_un.wait_queue = NULL;
9727 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05009728 return retval;
9729}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04009730
James Smarte59058c2008-08-24 21:49:00 -04009731/**
James Smart3621a712009-04-06 18:47:14 -04009732 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -04009733 * @phba: Pointer to HBA context object.
9734 * @pmboxq: Pointer to driver mailbox object.
9735 * @timeout: Timeout in number of seconds.
9736 *
9737 * This function issues the mailbox to firmware and waits for the
9738 * mailbox command to complete. If the mailbox command is not
9739 * completed within timeout seconds, it returns MBX_TIMEOUT.
9740 * The function waits for the mailbox completion using an
9741 * interruptible wait. If the thread is woken up due to a
9742 * signal, MBX_TIMEOUT error is returned to the caller. Caller
9743 * should not free the mailbox resources, if this function returns
9744 * MBX_TIMEOUT.
9745 * This function will sleep while waiting for mailbox completion.
9746 * So, this function should not be called from any context which
9747 * does not allow sleeping. Due to the same reason, this function
9748 * cannot be called with interrupt disabled.
9749 * This function assumes that the mailbox completion occurs while
9750 * this function sleep. So, this function cannot be called from
9751 * the worker thread which processes mailbox completion.
9752 * This function is called in the context of HBA management
9753 * applications.
9754 * This function returns MBX_SUCCESS when successful.
9755 * This function is called with no lock held.
9756 **/
dea31012005-04-17 16:05:31 -05009757int
James Smart2e0fef82007-06-17 19:56:36 -05009758lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -05009759 uint32_t timeout)
9760{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08009761 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05009762 int retval;
James Smart858c9f62007-06-17 19:56:39 -05009763 unsigned long flag;
dea31012005-04-17 16:05:31 -05009764
9765 /* The caller must leave context1 empty. */
James Smart98c9ea52007-10-27 13:37:33 -04009766 if (pmboxq->context1)
James Smart2e0fef82007-06-17 19:56:36 -05009767 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05009768
James Smart495a7142008-06-14 22:52:59 -04009769 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -05009770 /* setup wake call as IOCB callback */
9771 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
9772 /* setup context field to pass wait_queue pointer to wake function */
9773 pmboxq->context1 = &done_q;
9774
dea31012005-04-17 16:05:31 -05009775 /* now issue the command */
9776 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
dea31012005-04-17 16:05:31 -05009777 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04009778 wait_event_interruptible_timeout(done_q,
9779 pmboxq->mbox_flag & LPFC_MBX_WAKE,
9780 timeout * HZ);
9781
James Smart858c9f62007-06-17 19:56:39 -05009782 spin_lock_irqsave(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05009783 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04009784 /*
9785 * if LPFC_MBX_WAKE flag is set the mailbox is completed
9786 * else do not free the resources.
9787 */
James Smartd7c47992010-06-08 18:31:54 -04009788 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
dea31012005-04-17 16:05:31 -05009789 retval = MBX_SUCCESS;
James Smartd7c47992010-06-08 18:31:54 -04009790 lpfc_sli4_swap_str(phba, pmboxq);
9791 } else {
James Smart7054a602007-04-25 09:52:34 -04009792 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -05009793 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9794 }
9795 spin_unlock_irqrestore(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05009796 }
9797
dea31012005-04-17 16:05:31 -05009798 return retval;
9799}
9800
James Smarte59058c2008-08-24 21:49:00 -04009801/**
James Smart3772a992009-05-22 14:50:54 -04009802 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -04009803 * @phba: Pointer to HBA context.
9804 *
James Smart3772a992009-05-22 14:50:54 -04009805 * This function is called to shutdown the driver's mailbox sub-system.
9806 * It first marks the mailbox sub-system is in a block state to prevent
9807 * the asynchronous mailbox command from issued off the pending mailbox
9808 * command queue. If the mailbox command sub-system shutdown is due to
9809 * HBA error conditions such as EEH or ERATT, this routine shall invoke
9810 * the mailbox sub-system flush routine to forcefully bring down the
9811 * mailbox sub-system. Otherwise, if it is due to normal condition (such
9812 * as with offline or HBA function reset), this routine will wait for the
9813 * outstanding mailbox command to complete before invoking the mailbox
9814 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -04009815 **/
James Smart3772a992009-05-22 14:50:54 -04009816void
9817lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
James Smartb4c02652006-07-06 15:50:43 -04009818{
James Smart3772a992009-05-22 14:50:54 -04009819 struct lpfc_sli *psli = &phba->sli;
James Smart3772a992009-05-22 14:50:54 -04009820 unsigned long timeout;
9821
James Smarta183a152011-10-10 21:32:43 -04009822 timeout = msecs_to_jiffies(LPFC_MBOX_TMO * 1000) + jiffies;
James Smartd7069f02012-03-01 22:36:29 -05009823
James Smart3772a992009-05-22 14:50:54 -04009824 spin_lock_irq(&phba->hbalock);
9825 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
James Smart3772a992009-05-22 14:50:54 -04009826
9827 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart3772a992009-05-22 14:50:54 -04009828 /* Determine how long we might wait for the active mailbox
9829 * command to be gracefully completed by firmware.
9830 */
James Smarta183a152011-10-10 21:32:43 -04009831 if (phba->sli.mbox_active)
9832 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
9833 phba->sli.mbox_active) *
9834 1000) + jiffies;
9835 spin_unlock_irq(&phba->hbalock);
9836
James Smart3772a992009-05-22 14:50:54 -04009837 while (phba->sli.mbox_active) {
9838 /* Check active mailbox complete status every 2ms */
9839 msleep(2);
9840 if (time_after(jiffies, timeout))
9841 /* Timeout, let the mailbox flush routine to
9842 * forcefully release active mailbox command
9843 */
9844 break;
9845 }
James Smartd7069f02012-03-01 22:36:29 -05009846 } else
9847 spin_unlock_irq(&phba->hbalock);
9848
James Smart3772a992009-05-22 14:50:54 -04009849 lpfc_sli_mbox_sys_flush(phba);
9850}
9851
9852/**
9853 * lpfc_sli_eratt_read - read sli-3 error attention events
9854 * @phba: Pointer to HBA context.
9855 *
9856 * This function is called to read the SLI3 device error attention registers
9857 * for possible error attention events. The caller must hold the hostlock
9858 * with spin_lock_irq().
9859 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009860 * This function returns 1 when there is Error Attention in the Host Attention
James Smart3772a992009-05-22 14:50:54 -04009861 * Register and returns 0 otherwise.
9862 **/
9863static int
9864lpfc_sli_eratt_read(struct lpfc_hba *phba)
9865{
James Smarted957682007-06-17 19:56:37 -05009866 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -04009867
James Smart3772a992009-05-22 14:50:54 -04009868 /* Read chip Host Attention (HA) register */
James Smart9940b972011-03-11 16:06:12 -05009869 if (lpfc_readl(phba->HAregaddr, &ha_copy))
9870 goto unplug_err;
9871
James Smart3772a992009-05-22 14:50:54 -04009872 if (ha_copy & HA_ERATT) {
9873 /* Read host status register to retrieve error event */
James Smart9940b972011-03-11 16:06:12 -05009874 if (lpfc_sli_read_hs(phba))
9875 goto unplug_err;
James Smartb4c02652006-07-06 15:50:43 -04009876
James Smart3772a992009-05-22 14:50:54 -04009877 /* Check if there is a deferred error condition is active */
9878 if ((HS_FFER1 & phba->work_hs) &&
9879 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -04009880 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -04009881 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -04009882 /* Clear all interrupt enable conditions */
9883 writel(0, phba->HCregaddr);
9884 readl(phba->HCregaddr);
9885 }
9886
9887 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -04009888 phba->work_ha |= HA_ERATT;
9889 /* Indicate polling handles this ERATT */
9890 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04009891 return 1;
James Smartb4c02652006-07-06 15:50:43 -04009892 }
James Smart3772a992009-05-22 14:50:54 -04009893 return 0;
James Smart9940b972011-03-11 16:06:12 -05009894
9895unplug_err:
9896 /* Set the driver HS work bitmap */
9897 phba->work_hs |= UNPLUG_ERR;
9898 /* Set the driver HA work bitmap */
9899 phba->work_ha |= HA_ERATT;
9900 /* Indicate polling handles this ERATT */
9901 phba->hba_flag |= HBA_ERATT_HANDLED;
9902 return 1;
James Smartb4c02652006-07-06 15:50:43 -04009903}
9904
James Smarte59058c2008-08-24 21:49:00 -04009905/**
James Smartda0436e2009-05-22 14:51:39 -04009906 * lpfc_sli4_eratt_read - read sli-4 error attention events
9907 * @phba: Pointer to HBA context.
9908 *
9909 * This function is called to read the SLI4 device error attention registers
9910 * for possible error attention events. The caller must hold the hostlock
9911 * with spin_lock_irq().
9912 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -03009913 * This function returns 1 when there is Error Attention in the Host Attention
James Smartda0436e2009-05-22 14:51:39 -04009914 * Register and returns 0 otherwise.
9915 **/
9916static int
9917lpfc_sli4_eratt_read(struct lpfc_hba *phba)
9918{
9919 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smart2fcee4b2010-12-15 17:57:46 -05009920 uint32_t if_type, portsmphr;
9921 struct lpfc_register portstat_reg;
James Smartda0436e2009-05-22 14:51:39 -04009922
James Smart2fcee4b2010-12-15 17:57:46 -05009923 /*
9924 * For now, use the SLI4 device internal unrecoverable error
James Smartda0436e2009-05-22 14:51:39 -04009925 * registers for error attention. This can be changed later.
9926 */
James Smart2fcee4b2010-12-15 17:57:46 -05009927 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
9928 switch (if_type) {
9929 case LPFC_SLI_INTF_IF_TYPE_0:
James Smart9940b972011-03-11 16:06:12 -05009930 if (lpfc_readl(phba->sli4_hba.u.if_type0.UERRLOregaddr,
9931 &uerr_sta_lo) ||
9932 lpfc_readl(phba->sli4_hba.u.if_type0.UERRHIregaddr,
9933 &uerr_sta_hi)) {
9934 phba->work_hs |= UNPLUG_ERR;
9935 phba->work_ha |= HA_ERATT;
9936 phba->hba_flag |= HBA_ERATT_HANDLED;
9937 return 1;
9938 }
James Smart2fcee4b2010-12-15 17:57:46 -05009939 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
9940 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
9941 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9942 "1423 HBA Unrecoverable error: "
9943 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
9944 "ue_mask_lo_reg=0x%x, "
9945 "ue_mask_hi_reg=0x%x\n",
9946 uerr_sta_lo, uerr_sta_hi,
9947 phba->sli4_hba.ue_mask_lo,
9948 phba->sli4_hba.ue_mask_hi);
9949 phba->work_status[0] = uerr_sta_lo;
9950 phba->work_status[1] = uerr_sta_hi;
9951 phba->work_ha |= HA_ERATT;
9952 phba->hba_flag |= HBA_ERATT_HANDLED;
9953 return 1;
9954 }
9955 break;
9956 case LPFC_SLI_INTF_IF_TYPE_2:
James Smart9940b972011-03-11 16:06:12 -05009957 if (lpfc_readl(phba->sli4_hba.u.if_type2.STATUSregaddr,
9958 &portstat_reg.word0) ||
9959 lpfc_readl(phba->sli4_hba.PSMPHRregaddr,
9960 &portsmphr)){
9961 phba->work_hs |= UNPLUG_ERR;
9962 phba->work_ha |= HA_ERATT;
9963 phba->hba_flag |= HBA_ERATT_HANDLED;
9964 return 1;
9965 }
James Smart2fcee4b2010-12-15 17:57:46 -05009966 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
9967 phba->work_status[0] =
9968 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
9969 phba->work_status[1] =
9970 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
9971 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2e90f4b2011-12-13 13:22:37 -05009972 "2885 Port Status Event: "
James Smart2fcee4b2010-12-15 17:57:46 -05009973 "port status reg 0x%x, "
9974 "port smphr reg 0x%x, "
9975 "error 1=0x%x, error 2=0x%x\n",
9976 portstat_reg.word0,
9977 portsmphr,
9978 phba->work_status[0],
9979 phba->work_status[1]);
9980 phba->work_ha |= HA_ERATT;
9981 phba->hba_flag |= HBA_ERATT_HANDLED;
9982 return 1;
9983 }
9984 break;
9985 case LPFC_SLI_INTF_IF_TYPE_1:
9986 default:
James Smarta747c9c2009-11-18 15:41:10 -05009987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2fcee4b2010-12-15 17:57:46 -05009988 "2886 HBA Error Attention on unsupported "
9989 "if type %d.", if_type);
James Smarta747c9c2009-11-18 15:41:10 -05009990 return 1;
James Smartda0436e2009-05-22 14:51:39 -04009991 }
James Smart2fcee4b2010-12-15 17:57:46 -05009992
James Smartda0436e2009-05-22 14:51:39 -04009993 return 0;
9994}
9995
9996/**
James Smart3621a712009-04-06 18:47:14 -04009997 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -04009998 * @phba: Pointer to HBA context.
9999 *
James Smart3772a992009-05-22 14:50:54 -040010000 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -040010001 * error attention register bit for error attention events.
10002 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030010003 * This function returns 1 when there is Error Attention in the Host Attention
James Smart93996272008-08-24 21:50:30 -040010004 * Register and returns 0 otherwise.
10005 **/
10006int
10007lpfc_sli_check_eratt(struct lpfc_hba *phba)
10008{
10009 uint32_t ha_copy;
10010
10011 /* If somebody is waiting to handle an eratt, don't process it
10012 * here. The brdkill function will do this.
10013 */
10014 if (phba->link_flag & LS_IGNORE_ERATT)
10015 return 0;
10016
10017 /* Check if interrupt handler handles this ERATT */
10018 spin_lock_irq(&phba->hbalock);
10019 if (phba->hba_flag & HBA_ERATT_HANDLED) {
10020 /* Interrupt handler has handled ERATT */
10021 spin_unlock_irq(&phba->hbalock);
10022 return 0;
10023 }
10024
James Smarta257bf92009-04-06 18:48:10 -040010025 /*
10026 * If there is deferred error attention, do not check for error
10027 * attention
10028 */
10029 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
10030 spin_unlock_irq(&phba->hbalock);
10031 return 0;
10032 }
10033
James Smart3772a992009-05-22 14:50:54 -040010034 /* If PCI channel is offline, don't process it */
10035 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -040010036 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040010037 return 0;
10038 }
10039
10040 switch (phba->sli_rev) {
10041 case LPFC_SLI_REV2:
10042 case LPFC_SLI_REV3:
10043 /* Read chip Host Attention (HA) register */
10044 ha_copy = lpfc_sli_eratt_read(phba);
10045 break;
James Smartda0436e2009-05-22 14:51:39 -040010046 case LPFC_SLI_REV4:
James Smart2fcee4b2010-12-15 17:57:46 -050010047 /* Read device Uncoverable Error (UERR) registers */
James Smartda0436e2009-05-22 14:51:39 -040010048 ha_copy = lpfc_sli4_eratt_read(phba);
10049 break;
James Smart3772a992009-05-22 14:50:54 -040010050 default:
10051 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10052 "0299 Invalid SLI revision (%d)\n",
10053 phba->sli_rev);
10054 ha_copy = 0;
10055 break;
James Smart93996272008-08-24 21:50:30 -040010056 }
10057 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -040010058
10059 return ha_copy;
10060}
10061
10062/**
10063 * lpfc_intr_state_check - Check device state for interrupt handling
10064 * @phba: Pointer to HBA context.
10065 *
10066 * This inline routine checks whether a device or its PCI slot is in a state
10067 * that the interrupt should be handled.
10068 *
10069 * This function returns 0 if the device or the PCI slot is in a state that
10070 * interrupt should be handled, otherwise -EIO.
10071 */
10072static inline int
10073lpfc_intr_state_check(struct lpfc_hba *phba)
10074{
10075 /* If the pci channel is offline, ignore all the interrupts */
10076 if (unlikely(pci_channel_offline(phba->pcidev)))
10077 return -EIO;
10078
10079 /* Update device level interrupt statistics */
10080 phba->sli.slistat.sli_intr++;
10081
10082 /* Ignore all interrupts during initialization. */
10083 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
10084 return -EIO;
10085
James Smart93996272008-08-24 21:50:30 -040010086 return 0;
10087}
10088
10089/**
James Smart3772a992009-05-22 14:50:54 -040010090 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -040010091 * @irq: Interrupt number.
10092 * @dev_id: The device context pointer.
10093 *
James Smart93996272008-08-24 21:50:30 -040010094 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040010095 * service routine when device with SLI-3 interface spec is enabled with
10096 * MSI-X multi-message interrupt mode and there are slow-path events in
10097 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10098 * interrupt mode, this function is called as part of the device-level
10099 * interrupt handler. When the PCI slot is in error recovery or the HBA
10100 * is undergoing initialization, the interrupt handler will not process
10101 * the interrupt. The link attention and ELS ring attention events are
10102 * handled by the worker thread. The interrupt handler signals the worker
10103 * thread and returns for these events. This function is called without
10104 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -040010105 * structures.
10106 *
10107 * This function returns IRQ_HANDLED when interrupt is handled else it
10108 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -040010109 **/
dea31012005-04-17 16:05:31 -050010110irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040010111lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -050010112{
James Smart2e0fef82007-06-17 19:56:36 -050010113 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -050010114 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -050010115 uint32_t work_ha_copy;
10116 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050010117 unsigned long iflag;
dea31012005-04-17 16:05:31 -050010118 uint32_t control;
10119
James Smart92d7f7b2007-06-17 19:56:38 -050010120 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -050010121 struct lpfc_vport *vport;
10122 struct lpfc_nodelist *ndlp;
10123 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -050010124 LPFC_MBOXQ_t *pmb;
10125 int rc;
10126
dea31012005-04-17 16:05:31 -050010127 /*
10128 * Get the driver's phba structure from the dev_id and
10129 * assume the HBA is not interrupting.
10130 */
James Smart93996272008-08-24 21:50:30 -040010131 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -050010132
10133 if (unlikely(!phba))
10134 return IRQ_NONE;
10135
dea31012005-04-17 16:05:31 -050010136 /*
James Smart93996272008-08-24 21:50:30 -040010137 * Stuff needs to be attented to when this function is invoked as an
10138 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050010139 */
James Smart93996272008-08-24 21:50:30 -040010140 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040010141 /* Check device state for handling interrupt */
10142 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040010143 return IRQ_NONE;
10144 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -050010145 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050010146 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10147 goto unplug_error;
James Smart93996272008-08-24 21:50:30 -040010148 /* If somebody is waiting to handle an eratt don't process it
10149 * here. The brdkill function will do this.
10150 */
10151 if (phba->link_flag & LS_IGNORE_ERATT)
10152 ha_copy &= ~HA_ERATT;
10153 /* Check the need for handling ERATT in interrupt handler */
10154 if (ha_copy & HA_ERATT) {
10155 if (phba->hba_flag & HBA_ERATT_HANDLED)
10156 /* ERATT polling has handled ERATT */
10157 ha_copy &= ~HA_ERATT;
10158 else
10159 /* Indicate interrupt handler handles ERATT */
10160 phba->hba_flag |= HBA_ERATT_HANDLED;
10161 }
James Smarta257bf92009-04-06 18:48:10 -040010162
10163 /*
10164 * If there is deferred error attention, do not check for any
10165 * interrupt.
10166 */
10167 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040010168 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040010169 return IRQ_NONE;
10170 }
10171
James Smart93996272008-08-24 21:50:30 -040010172 /* Clear up only attention source related to slow-path */
James Smart9940b972011-03-11 16:06:12 -050010173 if (lpfc_readl(phba->HCregaddr, &hc_copy))
10174 goto unplug_error;
10175
James Smarta747c9c2009-11-18 15:41:10 -050010176 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
10177 HC_LAINT_ENA | HC_ERINT_ENA),
10178 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010179 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
10180 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050010181 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010182 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050010183 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040010184 } else
10185 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -050010186
dea31012005-04-17 16:05:31 -050010187 work_ha_copy = ha_copy & phba->work_ha_mask;
10188
James Smart93996272008-08-24 21:50:30 -040010189 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -050010190 if (work_ha_copy & HA_LATT) {
10191 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
10192 /*
10193 * Turn off Link Attention interrupts
10194 * until CLEAR_LA done
10195 */
James Smart5b75da22008-12-04 22:39:35 -050010196 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010197 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
James Smart9940b972011-03-11 16:06:12 -050010198 if (lpfc_readl(phba->HCregaddr, &control))
10199 goto unplug_error;
dea31012005-04-17 16:05:31 -050010200 control &= ~HC_LAINT_ENA;
10201 writel(control, phba->HCregaddr);
10202 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050010203 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010204 }
10205 else
10206 work_ha_copy &= ~HA_LATT;
10207 }
10208
James Smart93996272008-08-24 21:50:30 -040010209 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -050010210 /*
10211 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10212 * the only slow ring.
10213 */
10214 status = (work_ha_copy &
10215 (HA_RXMASK << (4*LPFC_ELS_RING)));
10216 status >>= (4*LPFC_ELS_RING);
10217 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -050010218 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart9940b972011-03-11 16:06:12 -050010219 if (lpfc_readl(phba->HCregaddr, &control))
10220 goto unplug_error;
James Smarta58cbd52007-08-02 11:09:43 -040010221
10222 lpfc_debugfs_slow_ring_trc(phba,
10223 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10224 control, status,
10225 (uint32_t)phba->sli.slistat.sli_intr);
10226
James Smart858c9f62007-06-17 19:56:39 -050010227 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -040010228 lpfc_debugfs_slow_ring_trc(phba,
10229 "ISR Disable ring:"
10230 "pwork:x%x hawork:x%x wait:x%x",
10231 phba->work_ha, work_ha_copy,
10232 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040010233 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040010234
James Smart858c9f62007-06-17 19:56:39 -050010235 control &=
10236 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -050010237 writel(control, phba->HCregaddr);
10238 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -050010239 }
James Smarta58cbd52007-08-02 11:09:43 -040010240 else {
10241 lpfc_debugfs_slow_ring_trc(phba,
10242 "ISR slow ring: pwork:"
10243 "x%x hawork:x%x wait:x%x",
10244 phba->work_ha, work_ha_copy,
10245 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -040010246 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -040010247 }
James Smart5b75da22008-12-04 22:39:35 -050010248 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010249 }
10250 }
James Smart5b75da22008-12-04 22:39:35 -050010251 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040010252 if (work_ha_copy & HA_ERATT) {
James Smart9940b972011-03-11 16:06:12 -050010253 if (lpfc_sli_read_hs(phba))
10254 goto unplug_error;
James Smarta257bf92009-04-06 18:48:10 -040010255 /*
10256 * Check if there is a deferred error condition
10257 * is active
10258 */
10259 if ((HS_FFER1 & phba->work_hs) &&
10260 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -040010261 HS_FFER6 | HS_FFER7 | HS_FFER8) &
10262 phba->work_hs)) {
James Smarta257bf92009-04-06 18:48:10 -040010263 phba->hba_flag |= DEFER_ERATT;
10264 /* Clear all interrupt enable conditions */
10265 writel(0, phba->HCregaddr);
10266 readl(phba->HCregaddr);
10267 }
10268 }
10269
James Smart93996272008-08-24 21:50:30 -040010270 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -050010271 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -040010272 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -040010273 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -050010274 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -050010275
10276 /* First check out the status word */
10277 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
10278 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -050010279 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -050010280 /*
10281 * Stray Mailbox Interrupt, mbxCommand <cmd>
10282 * mbxStatus <status>
10283 */
James Smart09372822008-01-11 01:52:54 -050010284 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -050010285 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -040010286 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -050010287 "Interrupt mbxCommand x%x "
10288 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -040010289 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -050010290 pmbox->mbxCommand,
10291 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -050010292 /* clear mailbox attention bit */
10293 work_ha_copy &= ~HA_MBATT;
10294 } else {
James Smart97eab632008-04-07 10:16:05 -040010295 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -050010296 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -050010297 phba->last_completion_time = jiffies;
10298 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -050010299 if (pmb->mbox_cmpl) {
10300 lpfc_sli_pcimem_bcopy(mbox, pmbox,
10301 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -040010302 if (pmb->out_ext_byte_len &&
10303 pmb->context2)
10304 lpfc_sli_pcimem_bcopy(
10305 phba->mbox_ext,
10306 pmb->context2,
10307 pmb->out_ext_byte_len);
James Smart858c9f62007-06-17 19:56:39 -050010308 }
James Smart09372822008-01-11 01:52:54 -050010309 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10310 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10311
10312 lpfc_debugfs_disc_trc(vport,
10313 LPFC_DISC_TRC_MBOX_VPORT,
10314 "MBOX dflt rpi: : "
10315 "status:x%x rpi:x%x",
10316 (uint32_t)pmbox->mbxStatus,
10317 pmbox->un.varWords[0], 0);
10318
10319 if (!pmbox->mbxStatus) {
10320 mp = (struct lpfc_dmabuf *)
10321 (pmb->context1);
10322 ndlp = (struct lpfc_nodelist *)
10323 pmb->context2;
10324
10325 /* Reg_LOGIN of dflt RPI was
10326 * successful. new lets get
10327 * rid of the RPI using the
10328 * same mbox buffer.
10329 */
10330 lpfc_unreg_login(phba,
10331 vport->vpi,
10332 pmbox->un.varWords[0],
10333 pmb);
10334 pmb->mbox_cmpl =
10335 lpfc_mbx_cmpl_dflt_rpi;
10336 pmb->context1 = mp;
10337 pmb->context2 = ndlp;
10338 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -040010339 rc = lpfc_sli_issue_mbox(phba,
10340 pmb,
10341 MBX_NOWAIT);
10342 if (rc != MBX_BUSY)
10343 lpfc_printf_log(phba,
10344 KERN_ERR,
10345 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -040010346 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -040010347 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -040010348 if (rc != MBX_NOT_FINISHED)
10349 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -050010350 }
10351 }
James Smart5b75da22008-12-04 22:39:35 -050010352 spin_lock_irqsave(
10353 &phba->pport->work_port_lock,
10354 iflag);
James Smart09372822008-01-11 01:52:54 -050010355 phba->pport->work_port_events &=
10356 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -050010357 spin_unlock_irqrestore(
10358 &phba->pport->work_port_lock,
10359 iflag);
James Smart09372822008-01-11 01:52:54 -050010360 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -050010361 }
James Smart97eab632008-04-07 10:16:05 -040010362 } else
James Smart5b75da22008-12-04 22:39:35 -050010363 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040010364
James Smart92d7f7b2007-06-17 19:56:38 -050010365 if ((work_ha_copy & HA_MBATT) &&
10366 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -050010367send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -050010368 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -040010369 do {
10370 rc = lpfc_sli_issue_mbox(phba, NULL,
10371 MBX_NOWAIT);
10372 } while (rc == MBX_NOT_FINISHED);
10373 if (rc != MBX_SUCCESS)
10374 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10375 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -040010376 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -050010377 }
10378
James Smart5b75da22008-12-04 22:39:35 -050010379 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -050010380 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -050010381 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -040010382 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -050010383 }
James Smart93996272008-08-24 21:50:30 -040010384 return IRQ_HANDLED;
James Smart9940b972011-03-11 16:06:12 -050010385unplug_error:
10386 spin_unlock_irqrestore(&phba->hbalock, iflag);
10387 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -050010388
James Smart3772a992009-05-22 14:50:54 -040010389} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -040010390
10391/**
James Smart3772a992009-05-22 14:50:54 -040010392 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -040010393 * @irq: Interrupt number.
10394 * @dev_id: The device context pointer.
10395 *
10396 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -040010397 * service routine when device with SLI-3 interface spec is enabled with
10398 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10399 * ring event in the HBA. However, when the device is enabled with either
10400 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10401 * device-level interrupt handler. When the PCI slot is in error recovery
10402 * or the HBA is undergoing initialization, the interrupt handler will not
10403 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10404 * the intrrupt context. This function is called without any lock held.
10405 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040010406 *
10407 * This function returns IRQ_HANDLED when interrupt is handled else it
10408 * returns IRQ_NONE.
10409 **/
10410irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040010411lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040010412{
10413 struct lpfc_hba *phba;
10414 uint32_t ha_copy;
10415 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -050010416 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -040010417
10418 /* Get the driver's phba structure from the dev_id and
10419 * assume the HBA is not interrupting.
10420 */
10421 phba = (struct lpfc_hba *) dev_id;
10422
10423 if (unlikely(!phba))
10424 return IRQ_NONE;
dea31012005-04-17 16:05:31 -050010425
10426 /*
James Smart93996272008-08-24 21:50:30 -040010427 * Stuff needs to be attented to when this function is invoked as an
10428 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -050010429 */
James Smart93996272008-08-24 21:50:30 -040010430 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -040010431 /* Check device state for handling interrupt */
10432 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040010433 return IRQ_NONE;
10434 /* Need to read HA REG for FCP ring and other ring events */
James Smart9940b972011-03-11 16:06:12 -050010435 if (lpfc_readl(phba->HAregaddr, &ha_copy))
10436 return IRQ_HANDLED;
James Smart93996272008-08-24 21:50:30 -040010437 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -050010438 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040010439 /*
10440 * If there is deferred error attention, do not check for
10441 * any interrupt.
10442 */
10443 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -040010444 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -040010445 return IRQ_NONE;
10446 }
James Smart93996272008-08-24 21:50:30 -040010447 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
10448 phba->HAregaddr);
10449 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -050010450 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -040010451 } else
10452 ha_copy = phba->ha_copy;
10453
10454 /*
10455 * Process all events on FCP ring. Take the optimized path for FCP IO.
10456 */
10457 ha_copy &= ~(phba->work_ha_mask);
10458
10459 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -050010460 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -050010461 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -050010462 lpfc_sli_handle_fast_ring_event(phba,
10463 &phba->sli.ring[LPFC_FCP_RING],
10464 status);
James Smarta4bc3372006-12-02 13:34:16 -050010465
10466 if (phba->cfg_multi_ring_support == 2) {
10467 /*
James Smart93996272008-08-24 21:50:30 -040010468 * Process all events on extra ring. Take the optimized path
10469 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -050010470 */
James Smart93996272008-08-24 21:50:30 -040010471 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -050010472 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -050010473 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -050010474 lpfc_sli_handle_fast_ring_event(phba,
10475 &phba->sli.ring[LPFC_EXTRA_RING],
10476 status);
10477 }
10478 }
dea31012005-04-17 16:05:31 -050010479 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -040010480} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -050010481
James Smart93996272008-08-24 21:50:30 -040010482/**
James Smart3772a992009-05-22 14:50:54 -040010483 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -040010484 * @irq: Interrupt number.
10485 * @dev_id: The device context pointer.
10486 *
James Smart3772a992009-05-22 14:50:54 -040010487 * This function is the HBA device-level interrupt handler to device with
10488 * SLI-3 interface spec, called from the PCI layer when either MSI or
10489 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10490 * requires driver attention. This function invokes the slow-path interrupt
10491 * attention handling function and fast-path interrupt attention handling
10492 * function in turn to process the relevant HBA attention events. This
10493 * function is called without any lock held. It gets the hbalock to access
10494 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -040010495 *
10496 * This function returns IRQ_HANDLED when interrupt is handled, else it
10497 * returns IRQ_NONE.
10498 **/
10499irqreturn_t
James Smart3772a992009-05-22 14:50:54 -040010500lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -040010501{
10502 struct lpfc_hba *phba;
10503 irqreturn_t sp_irq_rc, fp_irq_rc;
10504 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -050010505 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -040010506
10507 /*
10508 * Get the driver's phba structure from the dev_id and
10509 * assume the HBA is not interrupting.
10510 */
10511 phba = (struct lpfc_hba *) dev_id;
10512
10513 if (unlikely(!phba))
10514 return IRQ_NONE;
10515
James Smart3772a992009-05-22 14:50:54 -040010516 /* Check device state for handling interrupt */
10517 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -040010518 return IRQ_NONE;
10519
10520 spin_lock(&phba->hbalock);
James Smart9940b972011-03-11 16:06:12 -050010521 if (lpfc_readl(phba->HAregaddr, &phba->ha_copy)) {
10522 spin_unlock(&phba->hbalock);
10523 return IRQ_HANDLED;
10524 }
10525
James Smart93996272008-08-24 21:50:30 -040010526 if (unlikely(!phba->ha_copy)) {
10527 spin_unlock(&phba->hbalock);
10528 return IRQ_NONE;
10529 } else if (phba->ha_copy & HA_ERATT) {
10530 if (phba->hba_flag & HBA_ERATT_HANDLED)
10531 /* ERATT polling has handled ERATT */
10532 phba->ha_copy &= ~HA_ERATT;
10533 else
10534 /* Indicate interrupt handler handles ERATT */
10535 phba->hba_flag |= HBA_ERATT_HANDLED;
10536 }
10537
James Smarta257bf92009-04-06 18:48:10 -040010538 /*
10539 * If there is deferred error attention, do not check for any interrupt.
10540 */
10541 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020010542 spin_unlock(&phba->hbalock);
James Smarta257bf92009-04-06 18:48:10 -040010543 return IRQ_NONE;
10544 }
10545
James Smart93996272008-08-24 21:50:30 -040010546 /* Clear attention sources except link and error attentions */
James Smart9940b972011-03-11 16:06:12 -050010547 if (lpfc_readl(phba->HCregaddr, &hc_copy)) {
10548 spin_unlock(&phba->hbalock);
10549 return IRQ_HANDLED;
10550 }
James Smarta747c9c2009-11-18 15:41:10 -050010551 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
10552 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
10553 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010554 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -050010555 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -040010556 readl(phba->HAregaddr); /* flush */
10557 spin_unlock(&phba->hbalock);
10558
10559 /*
10560 * Invokes slow-path host attention interrupt handling as appropriate.
10561 */
10562
10563 /* status of events with mailbox and link attention */
10564 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
10565
10566 /* status of events with ELS ring */
10567 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
10568 status2 >>= (4*LPFC_ELS_RING);
10569
10570 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040010571 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040010572 else
10573 sp_irq_rc = IRQ_NONE;
10574
10575 /*
10576 * Invoke fast-path host attention interrupt handling as appropriate.
10577 */
10578
10579 /* status of events with FCP ring */
10580 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
10581 status1 >>= (4*LPFC_FCP_RING);
10582
10583 /* status of events with extra ring */
10584 if (phba->cfg_multi_ring_support == 2) {
10585 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
10586 status2 >>= (4*LPFC_EXTRA_RING);
10587 } else
10588 status2 = 0;
10589
10590 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -040010591 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -040010592 else
10593 fp_irq_rc = IRQ_NONE;
10594
10595 /* Return device-level interrupt handling status */
10596 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -040010597} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -040010598
10599/**
10600 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10601 * @phba: pointer to lpfc hba data structure.
10602 *
10603 * This routine is invoked by the worker thread to process all the pending
10604 * SLI4 FCP abort XRI events.
10605 **/
10606void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
10607{
10608 struct lpfc_cq_event *cq_event;
10609
10610 /* First, declare the fcp xri abort event has been handled */
10611 spin_lock_irq(&phba->hbalock);
10612 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
10613 spin_unlock_irq(&phba->hbalock);
10614 /* Now, handle all the fcp xri abort events */
10615 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
10616 /* Get the first event from the head of the event queue */
10617 spin_lock_irq(&phba->hbalock);
10618 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
10619 cq_event, struct lpfc_cq_event, list);
10620 spin_unlock_irq(&phba->hbalock);
10621 /* Notify aborted XRI for FCP work queue */
10622 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10623 /* Free the event processed back to the free pool */
10624 lpfc_sli4_cq_event_release(phba, cq_event);
10625 }
10626}
10627
10628/**
10629 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10630 * @phba: pointer to lpfc hba data structure.
10631 *
10632 * This routine is invoked by the worker thread to process all the pending
10633 * SLI4 els abort xri events.
10634 **/
10635void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
10636{
10637 struct lpfc_cq_event *cq_event;
10638
10639 /* First, declare the els xri abort event has been handled */
10640 spin_lock_irq(&phba->hbalock);
10641 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
10642 spin_unlock_irq(&phba->hbalock);
10643 /* Now, handle all the els xri abort events */
10644 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
10645 /* Get the first event from the head of the event queue */
10646 spin_lock_irq(&phba->hbalock);
10647 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
10648 cq_event, struct lpfc_cq_event, list);
10649 spin_unlock_irq(&phba->hbalock);
10650 /* Notify aborted XRI for ELS work queue */
10651 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
10652 /* Free the event processed back to the free pool */
10653 lpfc_sli4_cq_event_release(phba, cq_event);
10654 }
10655}
10656
James Smart341af102010-01-26 23:07:37 -050010657/**
10658 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
10659 * @phba: pointer to lpfc hba data structure
10660 * @pIocbIn: pointer to the rspiocbq
10661 * @pIocbOut: pointer to the cmdiocbq
10662 * @wcqe: pointer to the complete wcqe
10663 *
10664 * This routine transfers the fields of a command iocbq to a response iocbq
10665 * by copying all the IOCB fields from command iocbq and transferring the
10666 * completion status information from the complete wcqe.
10667 **/
James Smart4f774512009-05-22 14:52:35 -040010668static void
James Smart341af102010-01-26 23:07:37 -050010669lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
10670 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -040010671 struct lpfc_iocbq *pIocbOut,
10672 struct lpfc_wcqe_complete *wcqe)
10673{
James Smart341af102010-01-26 23:07:37 -050010674 unsigned long iflags;
James Smartacd68592012-01-18 16:25:09 -050010675 uint32_t status;
James Smart4f774512009-05-22 14:52:35 -040010676 size_t offset = offsetof(struct lpfc_iocbq, iocb);
10677
10678 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
10679 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -040010680 /* Map WCQE parameters into irspiocb parameters */
James Smartacd68592012-01-18 16:25:09 -050010681 status = bf_get(lpfc_wcqe_c_status, wcqe);
10682 pIocbIn->iocb.ulpStatus = (status & LPFC_IOCB_STATUS_MASK);
James Smart4f774512009-05-22 14:52:35 -040010683 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
10684 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
10685 pIocbIn->iocb.un.fcpi.fcpi_parm =
10686 pIocbOut->iocb.un.fcpi.fcpi_parm -
10687 wcqe->total_data_placed;
10688 else
10689 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -050010690 else {
James Smart4f774512009-05-22 14:52:35 -040010691 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -050010692 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
10693 }
James Smart341af102010-01-26 23:07:37 -050010694
James Smartacd68592012-01-18 16:25:09 -050010695 /* Convert BG errors for completion status */
10696 if (status == CQE_STATUS_DI_ERROR) {
10697 pIocbIn->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
10698
10699 if (bf_get(lpfc_wcqe_c_bg_edir, wcqe))
10700 pIocbIn->iocb.un.ulpWord[4] = IOERR_RX_DMA_FAILED;
10701 else
10702 pIocbIn->iocb.un.ulpWord[4] = IOERR_TX_DMA_FAILED;
10703
10704 pIocbIn->iocb.unsli3.sli3_bg.bgstat = 0;
10705 if (bf_get(lpfc_wcqe_c_bg_ge, wcqe)) /* Guard Check failed */
10706 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10707 BGS_GUARD_ERR_MASK;
10708 if (bf_get(lpfc_wcqe_c_bg_ae, wcqe)) /* App Tag Check failed */
10709 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10710 BGS_APPTAG_ERR_MASK;
10711 if (bf_get(lpfc_wcqe_c_bg_re, wcqe)) /* Ref Tag Check failed */
10712 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10713 BGS_REFTAG_ERR_MASK;
10714
10715 /* Check to see if there was any good data before the error */
10716 if (bf_get(lpfc_wcqe_c_bg_tdpv, wcqe)) {
10717 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10718 BGS_HI_WATER_MARK_PRESENT_MASK;
10719 pIocbIn->iocb.unsli3.sli3_bg.bghm =
10720 wcqe->total_data_placed;
10721 }
10722
10723 /*
10724 * Set ALL the error bits to indicate we don't know what
10725 * type of error it is.
10726 */
10727 if (!pIocbIn->iocb.unsli3.sli3_bg.bgstat)
10728 pIocbIn->iocb.unsli3.sli3_bg.bgstat |=
10729 (BGS_REFTAG_ERR_MASK | BGS_APPTAG_ERR_MASK |
10730 BGS_GUARD_ERR_MASK);
10731 }
10732
James Smart341af102010-01-26 23:07:37 -050010733 /* Pick up HBA exchange busy condition */
10734 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
10735 spin_lock_irqsave(&phba->hbalock, iflags);
10736 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
10737 spin_unlock_irqrestore(&phba->hbalock, iflags);
10738 }
James Smart4f774512009-05-22 14:52:35 -040010739}
10740
10741/**
James Smart45ed1192009-10-02 15:17:02 -040010742 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
10743 * @phba: Pointer to HBA context object.
10744 * @wcqe: Pointer to work-queue completion queue entry.
10745 *
10746 * This routine handles an ELS work-queue completion event and construct
10747 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
10748 * discovery engine to handle.
10749 *
10750 * Return: Pointer to the receive IOCBQ, NULL otherwise.
10751 **/
10752static struct lpfc_iocbq *
10753lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
10754 struct lpfc_iocbq *irspiocbq)
10755{
10756 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
10757 struct lpfc_iocbq *cmdiocbq;
10758 struct lpfc_wcqe_complete *wcqe;
10759 unsigned long iflags;
10760
10761 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
10762 spin_lock_irqsave(&phba->hbalock, iflags);
10763 pring->stats.iocb_event++;
10764 /* Look up the ELS command IOCB and create pseudo response IOCB */
10765 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
10766 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10767 spin_unlock_irqrestore(&phba->hbalock, iflags);
10768
10769 if (unlikely(!cmdiocbq)) {
10770 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10771 "0386 ELS complete with no corresponding "
10772 "cmdiocb: iotag (%d)\n",
10773 bf_get(lpfc_wcqe_c_request_tag, wcqe));
10774 lpfc_sli_release_iocbq(phba, irspiocbq);
10775 return NULL;
10776 }
10777
10778 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050010779 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -040010780
10781 return irspiocbq;
10782}
10783
10784/**
James Smart04c68492009-05-22 14:52:52 -040010785 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
10786 * @phba: Pointer to HBA context object.
10787 * @cqe: Pointer to mailbox completion queue entry.
10788 *
10789 * This routine process a mailbox completion queue entry with asynchrous
10790 * event.
10791 *
10792 * Return: true if work posted to worker thread, otherwise false.
10793 **/
10794static bool
10795lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10796{
10797 struct lpfc_cq_event *cq_event;
10798 unsigned long iflags;
10799
10800 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
10801 "0392 Async Event: word0:x%x, word1:x%x, "
10802 "word2:x%x, word3:x%x\n", mcqe->word0,
10803 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
10804
10805 /* Allocate a new internal CQ_EVENT entry */
10806 cq_event = lpfc_sli4_cq_event_alloc(phba);
10807 if (!cq_event) {
10808 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10809 "0394 Failed to allocate CQ_EVENT entry\n");
10810 return false;
10811 }
10812
10813 /* Move the CQE into an asynchronous event entry */
10814 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
10815 spin_lock_irqsave(&phba->hbalock, iflags);
10816 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
10817 /* Set the async event flag */
10818 phba->hba_flag |= ASYNC_EVENT;
10819 spin_unlock_irqrestore(&phba->hbalock, iflags);
10820
10821 return true;
10822}
10823
10824/**
10825 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
10826 * @phba: Pointer to HBA context object.
10827 * @cqe: Pointer to mailbox completion queue entry.
10828 *
10829 * This routine process a mailbox completion queue entry with mailbox
10830 * completion event.
10831 *
10832 * Return: true if work posted to worker thread, otherwise false.
10833 **/
10834static bool
10835lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
10836{
10837 uint32_t mcqe_status;
10838 MAILBOX_t *mbox, *pmbox;
10839 struct lpfc_mqe *mqe;
10840 struct lpfc_vport *vport;
10841 struct lpfc_nodelist *ndlp;
10842 struct lpfc_dmabuf *mp;
10843 unsigned long iflags;
10844 LPFC_MBOXQ_t *pmb;
10845 bool workposted = false;
10846 int rc;
10847
10848 /* If not a mailbox complete MCQE, out by checking mailbox consume */
10849 if (!bf_get(lpfc_trailer_completed, mcqe))
10850 goto out_no_mqe_complete;
10851
10852 /* Get the reference to the active mbox command */
10853 spin_lock_irqsave(&phba->hbalock, iflags);
10854 pmb = phba->sli.mbox_active;
10855 if (unlikely(!pmb)) {
10856 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
10857 "1832 No pending MBOX command to handle\n");
10858 spin_unlock_irqrestore(&phba->hbalock, iflags);
10859 goto out_no_mqe_complete;
10860 }
10861 spin_unlock_irqrestore(&phba->hbalock, iflags);
10862 mqe = &pmb->u.mqe;
10863 pmbox = (MAILBOX_t *)&pmb->u.mqe;
10864 mbox = phba->mbox;
10865 vport = pmb->vport;
10866
10867 /* Reset heartbeat timer */
10868 phba->last_completion_time = jiffies;
10869 del_timer(&phba->sli.mbox_tmo);
10870
10871 /* Move mbox data to caller's mailbox region, do endian swapping */
10872 if (pmb->mbox_cmpl && mbox)
10873 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
James Smart04c68492009-05-22 14:52:52 -040010874
James Smart73d91e52011-10-10 21:32:10 -040010875 /*
10876 * For mcqe errors, conditionally move a modified error code to
10877 * the mbox so that the error will not be missed.
10878 */
10879 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
10880 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
10881 if (bf_get(lpfc_mqe_status, mqe) == MBX_SUCCESS)
10882 bf_set(lpfc_mqe_status, mqe,
10883 (LPFC_MBX_ERROR_RANGE | mcqe_status));
10884 }
James Smart04c68492009-05-22 14:52:52 -040010885 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
10886 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
10887 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
10888 "MBOX dflt rpi: status:x%x rpi:x%x",
10889 mcqe_status,
10890 pmbox->un.varWords[0], 0);
10891 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
10892 mp = (struct lpfc_dmabuf *)(pmb->context1);
10893 ndlp = (struct lpfc_nodelist *)pmb->context2;
10894 /* Reg_LOGIN of dflt RPI was successful. Now lets get
10895 * RID of the PPI using the same mbox buffer.
10896 */
10897 lpfc_unreg_login(phba, vport->vpi,
10898 pmbox->un.varWords[0], pmb);
10899 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
10900 pmb->context1 = mp;
10901 pmb->context2 = ndlp;
10902 pmb->vport = vport;
10903 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
10904 if (rc != MBX_BUSY)
10905 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
10906 LOG_SLI, "0385 rc should "
10907 "have been MBX_BUSY\n");
10908 if (rc != MBX_NOT_FINISHED)
10909 goto send_current_mbox;
10910 }
10911 }
10912 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
10913 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
10914 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
10915
10916 /* There is mailbox completion work to do */
10917 spin_lock_irqsave(&phba->hbalock, iflags);
10918 __lpfc_mbox_cmpl_put(phba, pmb);
10919 phba->work_ha |= HA_MBATT;
10920 spin_unlock_irqrestore(&phba->hbalock, iflags);
10921 workposted = true;
10922
10923send_current_mbox:
10924 spin_lock_irqsave(&phba->hbalock, iflags);
10925 /* Release the mailbox command posting token */
10926 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
10927 /* Setting active mailbox pointer need to be in sync to flag clear */
10928 phba->sli.mbox_active = NULL;
10929 spin_unlock_irqrestore(&phba->hbalock, iflags);
10930 /* Wake up worker thread to post the next pending mailbox command */
10931 lpfc_worker_wake_up(phba);
10932out_no_mqe_complete:
10933 if (bf_get(lpfc_trailer_consumed, mcqe))
10934 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
10935 return workposted;
10936}
10937
10938/**
10939 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
10940 * @phba: Pointer to HBA context object.
10941 * @cqe: Pointer to mailbox completion queue entry.
10942 *
10943 * This routine process a mailbox completion queue entry, it invokes the
10944 * proper mailbox complete handling or asynchrous event handling routine
10945 * according to the MCQE's async bit.
10946 *
10947 * Return: true if work posted to worker thread, otherwise false.
10948 **/
10949static bool
10950lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
10951{
10952 struct lpfc_mcqe mcqe;
10953 bool workposted;
10954
10955 /* Copy the mailbox MCQE and convert endian order as needed */
10956 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
10957
10958 /* Invoke the proper event handling routine */
10959 if (!bf_get(lpfc_trailer_async, &mcqe))
10960 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
10961 else
10962 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
10963 return workposted;
10964}
10965
10966/**
James Smart4f774512009-05-22 14:52:35 -040010967 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
10968 * @phba: Pointer to HBA context object.
10969 * @wcqe: Pointer to work-queue completion queue entry.
10970 *
10971 * This routine handles an ELS work-queue completion event.
10972 *
10973 * Return: true if work posted to worker thread, otherwise false.
10974 **/
10975static bool
10976lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
10977 struct lpfc_wcqe_complete *wcqe)
10978{
James Smart4f774512009-05-22 14:52:35 -040010979 struct lpfc_iocbq *irspiocbq;
10980 unsigned long iflags;
James Smart2a9bf3d2010-06-07 15:24:45 -040010981 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
James Smart4f774512009-05-22 14:52:35 -040010982
James Smart45ed1192009-10-02 15:17:02 -040010983 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -040010984 irspiocbq = lpfc_sli_get_iocbq(phba);
10985 if (!irspiocbq) {
10986 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2a9bf3d2010-06-07 15:24:45 -040010987 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
10988 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
10989 pring->txq_cnt, phba->iocb_cnt,
10990 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
10991 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
James Smart45ed1192009-10-02 15:17:02 -040010992 return false;
James Smart4f774512009-05-22 14:52:35 -040010993 }
James Smart4f774512009-05-22 14:52:35 -040010994
James Smart45ed1192009-10-02 15:17:02 -040010995 /* Save off the slow-path queue event for work thread to process */
10996 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -040010997 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -040010998 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040010999 &phba->sli4_hba.sp_queue_event);
11000 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -040011001 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -040011002
James Smart45ed1192009-10-02 15:17:02 -040011003 return true;
James Smart4f774512009-05-22 14:52:35 -040011004}
11005
11006/**
11007 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11008 * @phba: Pointer to HBA context object.
11009 * @wcqe: Pointer to work-queue completion queue entry.
11010 *
11011 * This routine handles slow-path WQ entry comsumed event by invoking the
11012 * proper WQ release routine to the slow-path WQ.
11013 **/
11014static void
11015lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
11016 struct lpfc_wcqe_release *wcqe)
11017{
James Smart2e90f4b2011-12-13 13:22:37 -050011018 /* sanity check on queue memory */
11019 if (unlikely(!phba->sli4_hba.els_wq))
11020 return;
James Smart4f774512009-05-22 14:52:35 -040011021 /* Check for the slow-path ELS work queue */
11022 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
11023 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
11024 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11025 else
11026 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11027 "2579 Slow-path wqe consume event carries "
11028 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11029 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
11030 phba->sli4_hba.els_wq->queue_id);
11031}
11032
11033/**
11034 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11035 * @phba: Pointer to HBA context object.
11036 * @cq: Pointer to a WQ completion queue.
11037 * @wcqe: Pointer to work-queue completion queue entry.
11038 *
11039 * This routine handles an XRI abort event.
11040 *
11041 * Return: true if work posted to worker thread, otherwise false.
11042 **/
11043static bool
11044lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
11045 struct lpfc_queue *cq,
11046 struct sli4_wcqe_xri_aborted *wcqe)
11047{
11048 bool workposted = false;
11049 struct lpfc_cq_event *cq_event;
11050 unsigned long iflags;
11051
11052 /* Allocate a new internal CQ_EVENT entry */
11053 cq_event = lpfc_sli4_cq_event_alloc(phba);
11054 if (!cq_event) {
11055 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11056 "0602 Failed to allocate CQ_EVENT entry\n");
11057 return false;
11058 }
11059
11060 /* Move the CQE into the proper xri abort event list */
11061 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
11062 switch (cq->subtype) {
11063 case LPFC_FCP:
11064 spin_lock_irqsave(&phba->hbalock, iflags);
11065 list_add_tail(&cq_event->list,
11066 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
11067 /* Set the fcp xri abort event flag */
11068 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
11069 spin_unlock_irqrestore(&phba->hbalock, iflags);
11070 workposted = true;
11071 break;
11072 case LPFC_ELS:
11073 spin_lock_irqsave(&phba->hbalock, iflags);
11074 list_add_tail(&cq_event->list,
11075 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
11076 /* Set the els xri abort event flag */
11077 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
11078 spin_unlock_irqrestore(&phba->hbalock, iflags);
11079 workposted = true;
11080 break;
11081 default:
11082 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11083 "0603 Invalid work queue CQE subtype (x%x)\n",
11084 cq->subtype);
11085 workposted = false;
11086 break;
11087 }
11088 return workposted;
11089}
11090
11091/**
James Smart4d9ab992009-10-02 15:16:39 -040011092 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -040011093 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -040011094 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040011095 *
James Smart4d9ab992009-10-02 15:16:39 -040011096 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -040011097 *
11098 * Return: true if work posted to worker thread, otherwise false.
11099 **/
11100static bool
James Smart4d9ab992009-10-02 15:16:39 -040011101lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
11102{
11103 bool workposted = false;
11104 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
11105 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
11106 struct hbq_dmabuf *dma_buf;
James Smart7851fe22011-07-22 18:36:52 -040011107 uint32_t status, rq_id;
James Smart4d9ab992009-10-02 15:16:39 -040011108 unsigned long iflags;
11109
James Smart2e90f4b2011-12-13 13:22:37 -050011110 /* sanity check on queue memory */
11111 if (unlikely(!hrq) || unlikely(!drq))
11112 return workposted;
11113
James Smart7851fe22011-07-22 18:36:52 -040011114 if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
11115 rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
11116 else
11117 rq_id = bf_get(lpfc_rcqe_rq_id, rcqe);
11118 if (rq_id != hrq->queue_id)
James Smart4d9ab992009-10-02 15:16:39 -040011119 goto out;
11120
11121 status = bf_get(lpfc_rcqe_status, rcqe);
11122 switch (status) {
11123 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
11124 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11125 "2537 Receive Frame Truncated!!\n");
11126 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -050011127 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -040011128 spin_lock_irqsave(&phba->hbalock, iflags);
11129 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
11130 if (!dma_buf) {
11131 spin_unlock_irqrestore(&phba->hbalock, iflags);
11132 goto out;
11133 }
11134 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
11135 /* save off the frame for the word thread to process */
11136 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -040011137 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -040011138 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -040011139 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -040011140 spin_unlock_irqrestore(&phba->hbalock, iflags);
11141 workposted = true;
11142 break;
11143 case FC_STATUS_INSUFF_BUF_NEED_BUF:
11144 case FC_STATUS_INSUFF_BUF_FRM_DISC:
11145 /* Post more buffers if possible */
11146 spin_lock_irqsave(&phba->hbalock, iflags);
11147 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
11148 spin_unlock_irqrestore(&phba->hbalock, iflags);
11149 workposted = true;
11150 break;
11151 }
11152out:
11153 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -040011154}
11155
11156/**
11157 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11158 * @phba: Pointer to HBA context object.
11159 * @cq: Pointer to the completion queue.
11160 * @wcqe: Pointer to a completion queue entry.
11161 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030011162 * This routine process a slow-path work-queue or receive queue completion queue
James Smart4d9ab992009-10-02 15:16:39 -040011163 * entry.
11164 *
11165 * Return: true if work posted to worker thread, otherwise false.
11166 **/
11167static bool
11168lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -040011169 struct lpfc_cqe *cqe)
11170{
James Smart45ed1192009-10-02 15:17:02 -040011171 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -040011172 bool workposted = false;
11173
11174 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -040011175 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -040011176
11177 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -040011178 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -040011179 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -040011180 /* Process the WQ/RQ complete event */
James Smartbc739052010-08-04 16:11:18 -040011181 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011182 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040011183 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040011184 break;
11185 case CQE_CODE_RELEASE_WQE:
11186 /* Process the WQ release event */
11187 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040011188 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040011189 break;
11190 case CQE_CODE_XRI_ABORTED:
11191 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040011192 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011193 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -040011194 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -040011195 break;
James Smart4d9ab992009-10-02 15:16:39 -040011196 case CQE_CODE_RECEIVE:
James Smart7851fe22011-07-22 18:36:52 -040011197 case CQE_CODE_RECEIVE_V1:
James Smart4d9ab992009-10-02 15:16:39 -040011198 /* Process the RQ event */
James Smartbc739052010-08-04 16:11:18 -040011199 phba->last_completion_time = jiffies;
James Smart4d9ab992009-10-02 15:16:39 -040011200 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -040011201 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -040011202 break;
James Smart4f774512009-05-22 14:52:35 -040011203 default:
11204 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11205 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -040011206 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -040011207 break;
11208 }
11209 return workposted;
11210}
11211
11212/**
James Smart4f774512009-05-22 14:52:35 -040011213 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11214 * @phba: Pointer to HBA context object.
11215 * @eqe: Pointer to fast-path event queue entry.
11216 *
11217 * This routine process a event queue entry from the slow-path event queue.
11218 * It will check the MajorCode and MinorCode to determine this is for a
11219 * completion event on a completion queue, if not, an error shall be logged
11220 * and just return. Otherwise, it will get to the corresponding completion
11221 * queue and process all the entries on that completion queue, rearm the
11222 * completion queue, and then return.
11223 *
11224 **/
11225static void
11226lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
11227{
11228 struct lpfc_queue *cq = NULL, *childq, *speq;
11229 struct lpfc_cqe *cqe;
11230 bool workposted = false;
11231 int ecount = 0;
11232 uint16_t cqid;
11233
James Smartcb5172e2010-03-15 11:25:07 -040011234 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
James Smart4f774512009-05-22 14:52:35 -040011235 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11236 "0359 Not a valid slow-path completion "
11237 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -040011238 bf_get_le32(lpfc_eqe_major_code, eqe),
11239 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -040011240 return;
11241 }
11242
11243 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -040011244 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -040011245
11246 /* Search for completion queue pointer matching this cqid */
11247 speq = phba->sli4_hba.sp_eq;
James Smart2e90f4b2011-12-13 13:22:37 -050011248 /* sanity check on queue memory */
11249 if (unlikely(!speq))
11250 return;
James Smart4f774512009-05-22 14:52:35 -040011251 list_for_each_entry(childq, &speq->child_list, list) {
11252 if (childq->queue_id == cqid) {
11253 cq = childq;
11254 break;
11255 }
11256 }
11257 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -040011258 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11259 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11260 "0365 Slow-path CQ identifier "
11261 "(%d) does not exist\n", cqid);
James Smart4f774512009-05-22 14:52:35 -040011262 return;
11263 }
11264
11265 /* Process all the entries to the CQ */
11266 switch (cq->type) {
11267 case LPFC_MCQ:
11268 while ((cqe = lpfc_sli4_cq_get(cq))) {
11269 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
James Smart73d91e52011-10-10 21:32:10 -040011270 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040011271 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11272 }
11273 break;
11274 case LPFC_WCQ:
11275 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart05580562011-05-24 11:40:48 -040011276 if (cq->subtype == LPFC_FCP)
11277 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq,
11278 cqe);
11279 else
11280 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq,
11281 cqe);
James Smart73d91e52011-10-10 21:32:10 -040011282 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040011283 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11284 }
11285 break;
11286 default:
11287 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11288 "0370 Invalid completion queue type (%d)\n",
11289 cq->type);
11290 return;
11291 }
11292
11293 /* Catch the no cq entry condition, log an error */
11294 if (unlikely(ecount == 0))
11295 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11296 "0371 No entry from the CQ: identifier "
11297 "(x%x), type (%d)\n", cq->queue_id, cq->type);
11298
11299 /* In any case, flash and re-arm the RCQ */
11300 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11301
11302 /* wake up worker thread if there are works to be done */
11303 if (workposted)
11304 lpfc_worker_wake_up(phba);
11305}
11306
11307/**
11308 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11309 * @eqe: Pointer to fast-path completion queue entry.
11310 *
11311 * This routine process a fast-path work queue completion entry from fast-path
11312 * event queue for FCP command response completion.
11313 **/
11314static void
11315lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
11316 struct lpfc_wcqe_complete *wcqe)
11317{
11318 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
11319 struct lpfc_iocbq *cmdiocbq;
11320 struct lpfc_iocbq irspiocbq;
11321 unsigned long iflags;
11322
11323 spin_lock_irqsave(&phba->hbalock, iflags);
11324 pring->stats.iocb_event++;
11325 spin_unlock_irqrestore(&phba->hbalock, iflags);
11326
11327 /* Check for response status */
11328 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
11329 /* If resource errors reported from HBA, reduce queue
11330 * depth of the SCSI device.
11331 */
11332 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
11333 IOSTAT_LOCAL_REJECT) &&
11334 (wcqe->parameter == IOERR_NO_RESOURCES)) {
11335 phba->lpfc_rampdown_queue_depth(phba);
11336 }
11337 /* Log the error status */
11338 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11339 "0373 FCP complete error: status=x%x, "
11340 "hw_status=x%x, total_data_specified=%d, "
11341 "parameter=x%x, word3=x%x\n",
11342 bf_get(lpfc_wcqe_c_status, wcqe),
11343 bf_get(lpfc_wcqe_c_hw_status, wcqe),
11344 wcqe->total_data_placed, wcqe->parameter,
11345 wcqe->word3);
11346 }
11347
11348 /* Look up the FCP command IOCB and create pseudo response IOCB */
11349 spin_lock_irqsave(&phba->hbalock, iflags);
11350 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
11351 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11352 spin_unlock_irqrestore(&phba->hbalock, iflags);
11353 if (unlikely(!cmdiocbq)) {
11354 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11355 "0374 FCP complete with no corresponding "
11356 "cmdiocb: iotag (%d)\n",
11357 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11358 return;
11359 }
11360 if (unlikely(!cmdiocbq->iocb_cmpl)) {
11361 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11362 "0375 FCP cmdiocb not callback function "
11363 "iotag: (%d)\n",
11364 bf_get(lpfc_wcqe_c_request_tag, wcqe));
11365 return;
11366 }
11367
11368 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -050011369 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -040011370
James Smart0f65ff62010-02-26 14:14:23 -050011371 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
11372 spin_lock_irqsave(&phba->hbalock, iflags);
11373 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
11374 spin_unlock_irqrestore(&phba->hbalock, iflags);
11375 }
11376
James Smart4f774512009-05-22 14:52:35 -040011377 /* Pass the cmd_iocb and the rsp state to the upper layer */
11378 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
11379}
11380
11381/**
11382 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11383 * @phba: Pointer to HBA context object.
11384 * @cq: Pointer to completion queue.
11385 * @wcqe: Pointer to work-queue completion queue entry.
11386 *
11387 * This routine handles an fast-path WQ entry comsumed event by invoking the
11388 * proper WQ release routine to the slow-path WQ.
11389 **/
11390static void
11391lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11392 struct lpfc_wcqe_release *wcqe)
11393{
11394 struct lpfc_queue *childwq;
11395 bool wqid_matched = false;
11396 uint16_t fcp_wqid;
11397
11398 /* Check for fast-path FCP work queue release */
11399 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
11400 list_for_each_entry(childwq, &cq->child_list, list) {
11401 if (childwq->queue_id == fcp_wqid) {
11402 lpfc_sli4_wq_release(childwq,
11403 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
11404 wqid_matched = true;
11405 break;
11406 }
11407 }
11408 /* Report warning log message if no match found */
11409 if (wqid_matched != true)
11410 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11411 "2580 Fast-path wqe consume event carries "
11412 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
11413}
11414
11415/**
11416 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11417 * @cq: Pointer to the completion queue.
11418 * @eqe: Pointer to fast-path completion queue entry.
11419 *
11420 * This routine process a fast-path work queue completion entry from fast-path
11421 * event queue for FCP command response completion.
11422 **/
11423static int
11424lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
11425 struct lpfc_cqe *cqe)
11426{
11427 struct lpfc_wcqe_release wcqe;
11428 bool workposted = false;
11429
11430 /* Copy the work queue CQE and convert endian order if needed */
11431 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
11432
11433 /* Check and process for different type of WCQE and dispatch */
11434 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
11435 case CQE_CODE_COMPL_WQE:
11436 /* Process the WQ complete event */
James Smart98fc5dd2010-06-07 15:24:29 -040011437 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011438 lpfc_sli4_fp_handle_fcp_wcqe(phba,
11439 (struct lpfc_wcqe_complete *)&wcqe);
11440 break;
11441 case CQE_CODE_RELEASE_WQE:
11442 /* Process the WQ release event */
11443 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
11444 (struct lpfc_wcqe_release *)&wcqe);
11445 break;
11446 case CQE_CODE_XRI_ABORTED:
11447 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -040011448 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011449 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
11450 (struct sli4_wcqe_xri_aborted *)&wcqe);
11451 break;
11452 default:
11453 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11454 "0144 Not a valid WCQE code: x%x\n",
11455 bf_get(lpfc_wcqe_c_code, &wcqe));
11456 break;
11457 }
11458 return workposted;
11459}
11460
11461/**
11462 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
11463 * @phba: Pointer to HBA context object.
11464 * @eqe: Pointer to fast-path event queue entry.
11465 *
11466 * This routine process a event queue entry from the fast-path event queue.
11467 * It will check the MajorCode and MinorCode to determine this is for a
11468 * completion event on a completion queue, if not, an error shall be logged
11469 * and just return. Otherwise, it will get to the corresponding completion
11470 * queue and process all the entries on the completion queue, rearm the
11471 * completion queue, and then return.
11472 **/
11473static void
11474lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
11475 uint32_t fcp_cqidx)
11476{
11477 struct lpfc_queue *cq;
11478 struct lpfc_cqe *cqe;
11479 bool workposted = false;
11480 uint16_t cqid;
11481 int ecount = 0;
11482
James Smartcb5172e2010-03-15 11:25:07 -040011483 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
James Smart4f774512009-05-22 14:52:35 -040011484 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11485 "0366 Not a valid fast-path completion "
11486 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -040011487 bf_get_le32(lpfc_eqe_major_code, eqe),
11488 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -040011489 return;
11490 }
11491
James Smart2e90f4b2011-12-13 13:22:37 -050011492 if (unlikely(!phba->sli4_hba.fcp_cq)) {
11493 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11494 "3146 Fast-path completion queues "
11495 "does not exist\n");
11496 return;
11497 }
James Smart4f774512009-05-22 14:52:35 -040011498 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
11499 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -040011500 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
11501 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11502 "0367 Fast-path completion queue "
James Smart2e90f4b2011-12-13 13:22:37 -050011503 "(%d) does not exist\n", fcp_cqidx);
James Smart4f774512009-05-22 14:52:35 -040011504 return;
11505 }
11506
11507 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -040011508 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -040011509 if (unlikely(cqid != cq->queue_id)) {
11510 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11511 "0368 Miss-matched fast-path completion "
11512 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11513 cqid, cq->queue_id);
11514 return;
11515 }
11516
11517 /* Process all the entries to the CQ */
11518 while ((cqe = lpfc_sli4_cq_get(cq))) {
11519 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
James Smart73d91e52011-10-10 21:32:10 -040011520 if (!(++ecount % cq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040011521 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
11522 }
11523
11524 /* Catch the no cq entry condition */
11525 if (unlikely(ecount == 0))
11526 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11527 "0369 No entry from fast-path completion "
11528 "queue fcpcqid=%d\n", cq->queue_id);
11529
11530 /* In any case, flash and re-arm the CQ */
11531 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
11532
11533 /* wake up worker thread if there are works to be done */
11534 if (workposted)
11535 lpfc_worker_wake_up(phba);
11536}
11537
11538static void
11539lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
11540{
11541 struct lpfc_eqe *eqe;
11542
11543 /* walk all the EQ entries and drop on the floor */
11544 while ((eqe = lpfc_sli4_eq_get(eq)))
11545 ;
11546
11547 /* Clear and re-arm the EQ */
11548 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
11549}
11550
11551/**
11552 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
11553 * @irq: Interrupt number.
11554 * @dev_id: The device context pointer.
11555 *
11556 * This function is directly called from the PCI layer as an interrupt
11557 * service routine when device with SLI-4 interface spec is enabled with
11558 * MSI-X multi-message interrupt mode and there are slow-path events in
11559 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11560 * interrupt mode, this function is called as part of the device-level
11561 * interrupt handler. When the PCI slot is in error recovery or the HBA is
11562 * undergoing initialization, the interrupt handler will not process the
11563 * interrupt. The link attention and ELS ring attention events are handled
11564 * by the worker thread. The interrupt handler signals the worker thread
11565 * and returns for these events. This function is called without any lock
11566 * held. It gets the hbalock to access and update SLI data structures.
11567 *
11568 * This function returns IRQ_HANDLED when interrupt is handled else it
11569 * returns IRQ_NONE.
11570 **/
11571irqreturn_t
11572lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
11573{
11574 struct lpfc_hba *phba;
11575 struct lpfc_queue *speq;
11576 struct lpfc_eqe *eqe;
11577 unsigned long iflag;
11578 int ecount = 0;
11579
11580 /*
11581 * Get the driver's phba structure from the dev_id
11582 */
11583 phba = (struct lpfc_hba *)dev_id;
11584
11585 if (unlikely(!phba))
11586 return IRQ_NONE;
11587
11588 /* Get to the EQ struct associated with this vector */
11589 speq = phba->sli4_hba.sp_eq;
James Smart5350d872011-10-10 21:33:49 -040011590 if (unlikely(!speq))
11591 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040011592
11593 /* Check device state for handling interrupt */
11594 if (unlikely(lpfc_intr_state_check(phba))) {
11595 /* Check again for link_state with lock held */
11596 spin_lock_irqsave(&phba->hbalock, iflag);
11597 if (phba->link_state < LPFC_LINK_DOWN)
11598 /* Flush, clear interrupt, and rearm the EQ */
11599 lpfc_sli4_eq_flush(phba, speq);
11600 spin_unlock_irqrestore(&phba->hbalock, iflag);
11601 return IRQ_NONE;
11602 }
11603
11604 /*
11605 * Process all the event on FCP slow-path EQ
11606 */
11607 while ((eqe = lpfc_sli4_eq_get(speq))) {
11608 lpfc_sli4_sp_handle_eqe(phba, eqe);
James Smart73d91e52011-10-10 21:32:10 -040011609 if (!(++ecount % speq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040011610 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
11611 }
11612
11613 /* Always clear and re-arm the slow-path EQ */
11614 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
11615
11616 /* Catch the no cq entry condition */
11617 if (unlikely(ecount == 0)) {
11618 if (phba->intr_type == MSIX)
11619 /* MSI-X treated interrupt served as no EQ share INT */
11620 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11621 "0357 MSI-X interrupt with no EQE\n");
11622 else
11623 /* Non MSI-X treated on interrupt as EQ share INT */
11624 return IRQ_NONE;
11625 }
11626
11627 return IRQ_HANDLED;
11628} /* lpfc_sli4_sp_intr_handler */
11629
11630/**
11631 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
11632 * @irq: Interrupt number.
11633 * @dev_id: The device context pointer.
11634 *
11635 * This function is directly called from the PCI layer as an interrupt
11636 * service routine when device with SLI-4 interface spec is enabled with
11637 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11638 * ring event in the HBA. However, when the device is enabled with either
11639 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11640 * device-level interrupt handler. When the PCI slot is in error recovery
11641 * or the HBA is undergoing initialization, the interrupt handler will not
11642 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11643 * the intrrupt context. This function is called without any lock held.
11644 * It gets the hbalock to access and update SLI data structures. Note that,
11645 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11646 * equal to that of FCP CQ index.
11647 *
11648 * This function returns IRQ_HANDLED when interrupt is handled else it
11649 * returns IRQ_NONE.
11650 **/
11651irqreturn_t
11652lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
11653{
11654 struct lpfc_hba *phba;
11655 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
11656 struct lpfc_queue *fpeq;
11657 struct lpfc_eqe *eqe;
11658 unsigned long iflag;
11659 int ecount = 0;
11660 uint32_t fcp_eqidx;
11661
11662 /* Get the driver's phba structure from the dev_id */
11663 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
11664 phba = fcp_eq_hdl->phba;
11665 fcp_eqidx = fcp_eq_hdl->idx;
11666
11667 if (unlikely(!phba))
11668 return IRQ_NONE;
James Smart5350d872011-10-10 21:33:49 -040011669 if (unlikely(!phba->sli4_hba.fp_eq))
11670 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040011671
11672 /* Get to the EQ struct associated with this vector */
11673 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
James Smart2e90f4b2011-12-13 13:22:37 -050011674 if (unlikely(!fpeq))
11675 return IRQ_NONE;
James Smart4f774512009-05-22 14:52:35 -040011676
11677 /* Check device state for handling interrupt */
11678 if (unlikely(lpfc_intr_state_check(phba))) {
11679 /* Check again for link_state with lock held */
11680 spin_lock_irqsave(&phba->hbalock, iflag);
11681 if (phba->link_state < LPFC_LINK_DOWN)
11682 /* Flush, clear interrupt, and rearm the EQ */
11683 lpfc_sli4_eq_flush(phba, fpeq);
11684 spin_unlock_irqrestore(&phba->hbalock, iflag);
11685 return IRQ_NONE;
11686 }
11687
11688 /*
11689 * Process all the event on FCP fast-path EQ
11690 */
11691 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
11692 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
James Smart73d91e52011-10-10 21:32:10 -040011693 if (!(++ecount % fpeq->entry_repost))
James Smart4f774512009-05-22 14:52:35 -040011694 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
11695 }
11696
11697 /* Always clear and re-arm the fast-path EQ */
11698 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
11699
11700 if (unlikely(ecount == 0)) {
11701 if (phba->intr_type == MSIX)
11702 /* MSI-X treated interrupt served as no EQ share INT */
11703 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11704 "0358 MSI-X interrupt with no EQE\n");
11705 else
11706 /* Non MSI-X treated on interrupt as EQ share INT */
11707 return IRQ_NONE;
11708 }
11709
11710 return IRQ_HANDLED;
11711} /* lpfc_sli4_fp_intr_handler */
11712
11713/**
11714 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
11715 * @irq: Interrupt number.
11716 * @dev_id: The device context pointer.
11717 *
11718 * This function is the device-level interrupt handler to device with SLI-4
11719 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
11720 * interrupt mode is enabled and there is an event in the HBA which requires
11721 * driver attention. This function invokes the slow-path interrupt attention
11722 * handling function and fast-path interrupt attention handling function in
11723 * turn to process the relevant HBA attention events. This function is called
11724 * without any lock held. It gets the hbalock to access and update SLI data
11725 * structures.
11726 *
11727 * This function returns IRQ_HANDLED when interrupt is handled, else it
11728 * returns IRQ_NONE.
11729 **/
11730irqreturn_t
11731lpfc_sli4_intr_handler(int irq, void *dev_id)
11732{
11733 struct lpfc_hba *phba;
11734 irqreturn_t sp_irq_rc, fp_irq_rc;
11735 bool fp_handled = false;
11736 uint32_t fcp_eqidx;
11737
11738 /* Get the driver's phba structure from the dev_id */
11739 phba = (struct lpfc_hba *)dev_id;
11740
11741 if (unlikely(!phba))
11742 return IRQ_NONE;
11743
11744 /*
11745 * Invokes slow-path host attention interrupt handling as appropriate.
11746 */
11747 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
11748
11749 /*
11750 * Invoke fast-path host attention interrupt handling as appropriate.
11751 */
11752 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
11753 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
11754 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
11755 if (fp_irq_rc == IRQ_HANDLED)
11756 fp_handled |= true;
11757 }
11758
11759 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
11760} /* lpfc_sli4_intr_handler */
11761
11762/**
11763 * lpfc_sli4_queue_free - free a queue structure and associated memory
11764 * @queue: The queue structure to free.
11765 *
Uwe Kleine-Königb5950762010-11-01 15:38:34 -040011766 * This function frees a queue structure and the DMAable memory used for
James Smart4f774512009-05-22 14:52:35 -040011767 * the host resident queue. This function must be called after destroying the
11768 * queue on the HBA.
11769 **/
11770void
11771lpfc_sli4_queue_free(struct lpfc_queue *queue)
11772{
11773 struct lpfc_dmabuf *dmabuf;
11774
11775 if (!queue)
11776 return;
11777
11778 while (!list_empty(&queue->page_list)) {
11779 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
11780 list);
James Smart49198b32010-04-06 15:04:33 -040011781 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
James Smart4f774512009-05-22 14:52:35 -040011782 dmabuf->virt, dmabuf->phys);
11783 kfree(dmabuf);
11784 }
11785 kfree(queue);
11786 return;
11787}
11788
11789/**
11790 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
11791 * @phba: The HBA that this queue is being created on.
11792 * @entry_size: The size of each queue entry for this queue.
11793 * @entry count: The number of entries that this queue will handle.
11794 *
11795 * This function allocates a queue structure and the DMAable memory used for
11796 * the host resident queue. This function must be called before creating the
11797 * queue on the HBA.
11798 **/
11799struct lpfc_queue *
11800lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
11801 uint32_t entry_count)
11802{
11803 struct lpfc_queue *queue;
11804 struct lpfc_dmabuf *dmabuf;
11805 int x, total_qe_count;
11806 void *dma_pointer;
James Smartcb5172e2010-03-15 11:25:07 -040011807 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart4f774512009-05-22 14:52:35 -040011808
James Smartcb5172e2010-03-15 11:25:07 -040011809 if (!phba->sli4_hba.pc_sli4_params.supported)
11810 hw_page_size = SLI4_PAGE_SIZE;
11811
James Smart4f774512009-05-22 14:52:35 -040011812 queue = kzalloc(sizeof(struct lpfc_queue) +
11813 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
11814 if (!queue)
11815 return NULL;
James Smartcb5172e2010-03-15 11:25:07 -040011816 queue->page_count = (ALIGN(entry_size * entry_count,
11817 hw_page_size))/hw_page_size;
James Smart4f774512009-05-22 14:52:35 -040011818 INIT_LIST_HEAD(&queue->list);
11819 INIT_LIST_HEAD(&queue->page_list);
11820 INIT_LIST_HEAD(&queue->child_list);
11821 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
11822 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
11823 if (!dmabuf)
11824 goto out_fail;
11825 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
James Smartcb5172e2010-03-15 11:25:07 -040011826 hw_page_size, &dmabuf->phys,
James Smart4f774512009-05-22 14:52:35 -040011827 GFP_KERNEL);
11828 if (!dmabuf->virt) {
11829 kfree(dmabuf);
11830 goto out_fail;
11831 }
James Smartcb5172e2010-03-15 11:25:07 -040011832 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040011833 dmabuf->buffer_tag = x;
11834 list_add_tail(&dmabuf->list, &queue->page_list);
11835 /* initialize queue's entry array */
11836 dma_pointer = dmabuf->virt;
11837 for (; total_qe_count < entry_count &&
James Smartcb5172e2010-03-15 11:25:07 -040011838 dma_pointer < (hw_page_size + dmabuf->virt);
James Smart4f774512009-05-22 14:52:35 -040011839 total_qe_count++, dma_pointer += entry_size) {
11840 queue->qe[total_qe_count].address = dma_pointer;
11841 }
11842 }
11843 queue->entry_size = entry_size;
11844 queue->entry_count = entry_count;
James Smart73d91e52011-10-10 21:32:10 -040011845
11846 /*
11847 * entry_repost is calculated based on the number of entries in the
11848 * queue. This works out except for RQs. If buffers are NOT initially
11849 * posted for every RQE, entry_repost should be adjusted accordingly.
11850 */
11851 queue->entry_repost = (entry_count >> 3);
11852 if (queue->entry_repost < LPFC_QUEUE_MIN_REPOST)
11853 queue->entry_repost = LPFC_QUEUE_MIN_REPOST;
James Smart4f774512009-05-22 14:52:35 -040011854 queue->phba = phba;
11855
11856 return queue;
11857out_fail:
11858 lpfc_sli4_queue_free(queue);
11859 return NULL;
11860}
11861
11862/**
11863 * lpfc_eq_create - Create an Event Queue on the HBA
11864 * @phba: HBA structure that indicates port to create a queue on.
11865 * @eq: The queue structure to use to create the event queue.
11866 * @imax: The maximum interrupt per second limit.
11867 *
11868 * This function creates an event queue, as detailed in @eq, on a port,
11869 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
11870 *
11871 * The @phba struct is used to send mailbox command to HBA. The @eq struct
11872 * is used to get the entry count and entry size that are necessary to
11873 * determine the number of pages to allocate and use for this queue. This
11874 * function will send the EQ_CREATE mailbox command to the HBA to setup the
11875 * event queue. This function is asynchronous and will wait for the mailbox
11876 * command to finish before continuing.
11877 *
11878 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040011879 * memory this function will return -ENOMEM. If the queue create mailbox command
11880 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040011881 **/
11882uint32_t
11883lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
11884{
11885 struct lpfc_mbx_eq_create *eq_create;
11886 LPFC_MBOXQ_t *mbox;
11887 int rc, length, status = 0;
11888 struct lpfc_dmabuf *dmabuf;
11889 uint32_t shdr_status, shdr_add_status;
11890 union lpfc_sli4_cfg_shdr *shdr;
11891 uint16_t dmult;
James Smart49198b32010-04-06 15:04:33 -040011892 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
11893
James Smart2e90f4b2011-12-13 13:22:37 -050011894 /* sanity check on queue memory */
11895 if (!eq)
11896 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040011897 if (!phba->sli4_hba.pc_sli4_params.supported)
11898 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040011899
11900 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11901 if (!mbox)
11902 return -ENOMEM;
11903 length = (sizeof(struct lpfc_mbx_eq_create) -
11904 sizeof(struct lpfc_sli4_cfg_mhdr));
11905 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
11906 LPFC_MBOX_OPCODE_EQ_CREATE,
11907 length, LPFC_SLI4_MBX_EMBED);
11908 eq_create = &mbox->u.mqe.un.eq_create;
11909 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
11910 eq->page_count);
11911 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
11912 LPFC_EQE_SIZE);
11913 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
11914 /* Calculate delay multiper from maximum interrupt per second */
11915 dmult = LPFC_DMULT_CONST/imax - 1;
11916 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
11917 dmult);
11918 switch (eq->entry_count) {
11919 default:
11920 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11921 "0360 Unsupported EQ count. (%d)\n",
11922 eq->entry_count);
11923 if (eq->entry_count < 256)
11924 return -EINVAL;
11925 /* otherwise default to smallest count (drop through) */
11926 case 256:
11927 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11928 LPFC_EQ_CNT_256);
11929 break;
11930 case 512:
11931 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11932 LPFC_EQ_CNT_512);
11933 break;
11934 case 1024:
11935 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11936 LPFC_EQ_CNT_1024);
11937 break;
11938 case 2048:
11939 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11940 LPFC_EQ_CNT_2048);
11941 break;
11942 case 4096:
11943 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
11944 LPFC_EQ_CNT_4096);
11945 break;
11946 }
11947 list_for_each_entry(dmabuf, &eq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040011948 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040011949 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
11950 putPaddrLow(dmabuf->phys);
11951 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
11952 putPaddrHigh(dmabuf->phys);
11953 }
11954 mbox->vport = phba->pport;
11955 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11956 mbox->context1 = NULL;
11957 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11958 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
11959 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11960 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11961 if (shdr_status || shdr_add_status || rc) {
11962 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11963 "2500 EQ_CREATE mailbox failed with "
11964 "status x%x add_status x%x, mbx status x%x\n",
11965 shdr_status, shdr_add_status, rc);
11966 status = -ENXIO;
11967 }
11968 eq->type = LPFC_EQ;
11969 eq->subtype = LPFC_NONE;
11970 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
11971 if (eq->queue_id == 0xFFFF)
11972 status = -ENXIO;
11973 eq->host_index = 0;
11974 eq->hba_index = 0;
11975
James Smart8fa38512009-07-19 10:01:03 -040011976 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040011977 return status;
11978}
11979
11980/**
11981 * lpfc_cq_create - Create a Completion Queue on the HBA
11982 * @phba: HBA structure that indicates port to create a queue on.
11983 * @cq: The queue structure to use to create the completion queue.
11984 * @eq: The event queue to bind this completion queue to.
11985 *
11986 * This function creates a completion queue, as detailed in @wq, on a port,
11987 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
11988 *
11989 * The @phba struct is used to send mailbox command to HBA. The @cq struct
11990 * is used to get the entry count and entry size that are necessary to
11991 * determine the number of pages to allocate and use for this queue. The @eq
11992 * is used to indicate which event queue to bind this completion queue to. This
11993 * function will send the CQ_CREATE mailbox command to the HBA to setup the
11994 * completion queue. This function is asynchronous and will wait for the mailbox
11995 * command to finish before continuing.
11996 *
11997 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040011998 * memory this function will return -ENOMEM. If the queue create mailbox command
11999 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012000 **/
12001uint32_t
12002lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
12003 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
12004{
12005 struct lpfc_mbx_cq_create *cq_create;
12006 struct lpfc_dmabuf *dmabuf;
12007 LPFC_MBOXQ_t *mbox;
12008 int rc, length, status = 0;
12009 uint32_t shdr_status, shdr_add_status;
12010 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040012011 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12012
James Smart2e90f4b2011-12-13 13:22:37 -050012013 /* sanity check on queue memory */
12014 if (!cq || !eq)
12015 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040012016 if (!phba->sli4_hba.pc_sli4_params.supported)
12017 hw_page_size = SLI4_PAGE_SIZE;
12018
James Smart4f774512009-05-22 14:52:35 -040012019 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12020 if (!mbox)
12021 return -ENOMEM;
12022 length = (sizeof(struct lpfc_mbx_cq_create) -
12023 sizeof(struct lpfc_sli4_cfg_mhdr));
12024 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12025 LPFC_MBOX_OPCODE_CQ_CREATE,
12026 length, LPFC_SLI4_MBX_EMBED);
12027 cq_create = &mbox->u.mqe.un.cq_create;
James Smart5a6f1332011-03-11 16:05:35 -050012028 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040012029 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
12030 cq->page_count);
12031 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
12032 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050012033 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12034 phba->sli4_hba.pc_sli4_params.cqv);
12035 if (phba->sli4_hba.pc_sli4_params.cqv == LPFC_Q_CREATE_VERSION_2) {
James Smartc31098c2011-04-16 11:03:33 -040012036 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12037 bf_set(lpfc_mbx_cq_create_page_size, &cq_create->u.request, 1);
James Smart5a6f1332011-03-11 16:05:35 -050012038 bf_set(lpfc_cq_eq_id_2, &cq_create->u.request.context,
12039 eq->queue_id);
12040 } else {
12041 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context,
12042 eq->queue_id);
12043 }
James Smart4f774512009-05-22 14:52:35 -040012044 switch (cq->entry_count) {
12045 default:
12046 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12047 "0361 Unsupported CQ count. (%d)\n",
12048 cq->entry_count);
12049 if (cq->entry_count < 256)
12050 return -EINVAL;
12051 /* otherwise default to smallest count (drop through) */
12052 case 256:
12053 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12054 LPFC_CQ_CNT_256);
12055 break;
12056 case 512:
12057 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12058 LPFC_CQ_CNT_512);
12059 break;
12060 case 1024:
12061 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
12062 LPFC_CQ_CNT_1024);
12063 break;
12064 }
12065 list_for_each_entry(dmabuf, &cq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040012066 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040012067 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12068 putPaddrLow(dmabuf->phys);
12069 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12070 putPaddrHigh(dmabuf->phys);
12071 }
12072 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12073
12074 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040012075 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12076 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12077 if (shdr_status || shdr_add_status || rc) {
12078 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12079 "2501 CQ_CREATE mailbox failed with "
12080 "status x%x add_status x%x, mbx status x%x\n",
12081 shdr_status, shdr_add_status, rc);
12082 status = -ENXIO;
12083 goto out;
12084 }
12085 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
12086 if (cq->queue_id == 0xFFFF) {
12087 status = -ENXIO;
12088 goto out;
12089 }
12090 /* link the cq onto the parent eq child list */
12091 list_add_tail(&cq->list, &eq->child_list);
12092 /* Set up completion queue's type and subtype */
12093 cq->type = type;
12094 cq->subtype = subtype;
12095 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
James Smart2a622bf2011-02-16 12:40:06 -050012096 cq->assoc_qid = eq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040012097 cq->host_index = 0;
12098 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -040012099
James Smart8fa38512009-07-19 10:01:03 -040012100out:
12101 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012102 return status;
12103}
12104
12105/**
James Smartb19a0612010-04-06 14:48:51 -040012106 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
James Smart04c68492009-05-22 14:52:52 -040012107 * @phba: HBA structure that indicates port to create a queue on.
12108 * @mq: The queue structure to use to create the mailbox queue.
James Smartb19a0612010-04-06 14:48:51 -040012109 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12110 * @cq: The completion queue to associate with this cq.
James Smart04c68492009-05-22 14:52:52 -040012111 *
James Smartb19a0612010-04-06 14:48:51 -040012112 * This function provides failback (fb) functionality when the
12113 * mq_create_ext fails on older FW generations. It's purpose is identical
12114 * to mq_create_ext otherwise.
James Smart04c68492009-05-22 14:52:52 -040012115 *
James Smartb19a0612010-04-06 14:48:51 -040012116 * This routine cannot fail as all attributes were previously accessed and
12117 * initialized in mq_create_ext.
James Smart04c68492009-05-22 14:52:52 -040012118 **/
James Smartb19a0612010-04-06 14:48:51 -040012119static void
12120lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
12121 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
James Smart04c68492009-05-22 14:52:52 -040012122{
12123 struct lpfc_mbx_mq_create *mq_create;
12124 struct lpfc_dmabuf *dmabuf;
James Smartb19a0612010-04-06 14:48:51 -040012125 int length;
James Smart04c68492009-05-22 14:52:52 -040012126
James Smart04c68492009-05-22 14:52:52 -040012127 length = (sizeof(struct lpfc_mbx_mq_create) -
12128 sizeof(struct lpfc_sli4_cfg_mhdr));
12129 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12130 LPFC_MBOX_OPCODE_MQ_CREATE,
12131 length, LPFC_SLI4_MBX_EMBED);
12132 mq_create = &mbox->u.mqe.un.mq_create;
12133 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
James Smartb19a0612010-04-06 14:48:51 -040012134 mq->page_count);
James Smart04c68492009-05-22 14:52:52 -040012135 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
James Smartb19a0612010-04-06 14:48:51 -040012136 cq->queue_id);
James Smart04c68492009-05-22 14:52:52 -040012137 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
12138 switch (mq->entry_count) {
James Smart04c68492009-05-22 14:52:52 -040012139 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050012140 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12141 LPFC_MQ_RING_SIZE_16);
James Smart04c68492009-05-22 14:52:52 -040012142 break;
12143 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050012144 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12145 LPFC_MQ_RING_SIZE_32);
James Smart04c68492009-05-22 14:52:52 -040012146 break;
12147 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050012148 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12149 LPFC_MQ_RING_SIZE_64);
James Smart04c68492009-05-22 14:52:52 -040012150 break;
12151 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050012152 bf_set(lpfc_mq_context_ring_size, &mq_create->u.request.context,
12153 LPFC_MQ_RING_SIZE_128);
James Smart04c68492009-05-22 14:52:52 -040012154 break;
12155 }
12156 list_for_each_entry(dmabuf, &mq->page_list, list) {
12157 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
James Smartb19a0612010-04-06 14:48:51 -040012158 putPaddrLow(dmabuf->phys);
James Smart04c68492009-05-22 14:52:52 -040012159 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smartb19a0612010-04-06 14:48:51 -040012160 putPaddrHigh(dmabuf->phys);
12161 }
12162}
12163
12164/**
12165 * lpfc_mq_create - Create a mailbox Queue on the HBA
12166 * @phba: HBA structure that indicates port to create a queue on.
12167 * @mq: The queue structure to use to create the mailbox queue.
12168 * @cq: The completion queue to associate with this cq.
12169 * @subtype: The queue's subtype.
12170 *
12171 * This function creates a mailbox queue, as detailed in @mq, on a port,
12172 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12173 *
12174 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12175 * is used to get the entry count and entry size that are necessary to
12176 * determine the number of pages to allocate and use for this queue. This
12177 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12178 * mailbox queue. This function is asynchronous and will wait for the mailbox
12179 * command to finish before continuing.
12180 *
12181 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040012182 * memory this function will return -ENOMEM. If the queue create mailbox command
12183 * fails this function will return -ENXIO.
James Smartb19a0612010-04-06 14:48:51 -040012184 **/
12185int32_t
12186lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
12187 struct lpfc_queue *cq, uint32_t subtype)
12188{
12189 struct lpfc_mbx_mq_create *mq_create;
12190 struct lpfc_mbx_mq_create_ext *mq_create_ext;
12191 struct lpfc_dmabuf *dmabuf;
12192 LPFC_MBOXQ_t *mbox;
12193 int rc, length, status = 0;
12194 uint32_t shdr_status, shdr_add_status;
12195 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040012196 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smartb19a0612010-04-06 14:48:51 -040012197
James Smart2e90f4b2011-12-13 13:22:37 -050012198 /* sanity check on queue memory */
12199 if (!mq || !cq)
12200 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040012201 if (!phba->sli4_hba.pc_sli4_params.supported)
12202 hw_page_size = SLI4_PAGE_SIZE;
James Smartb19a0612010-04-06 14:48:51 -040012203
12204 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12205 if (!mbox)
12206 return -ENOMEM;
12207 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
12208 sizeof(struct lpfc_sli4_cfg_mhdr));
12209 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12210 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
12211 length, LPFC_SLI4_MBX_EMBED);
12212
12213 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
James Smart5a6f1332011-03-11 16:05:35 -050012214 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
James Smart70f3c072010-12-15 17:57:33 -050012215 bf_set(lpfc_mbx_mq_create_ext_num_pages,
12216 &mq_create_ext->u.request, mq->page_count);
12217 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
12218 &mq_create_ext->u.request, 1);
12219 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
James Smartb19a0612010-04-06 14:48:51 -040012220 &mq_create_ext->u.request, 1);
12221 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
12222 &mq_create_ext->u.request, 1);
James Smart70f3c072010-12-15 17:57:33 -050012223 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
12224 &mq_create_ext->u.request, 1);
12225 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
12226 &mq_create_ext->u.request, 1);
James Smartb19a0612010-04-06 14:48:51 -040012227 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
James Smart5a6f1332011-03-11 16:05:35 -050012228 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12229 phba->sli4_hba.pc_sli4_params.mqv);
12230 if (phba->sli4_hba.pc_sli4_params.mqv == LPFC_Q_CREATE_VERSION_1)
12231 bf_set(lpfc_mbx_mq_create_ext_cq_id, &mq_create_ext->u.request,
12232 cq->queue_id);
12233 else
12234 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
12235 cq->queue_id);
James Smartb19a0612010-04-06 14:48:51 -040012236 switch (mq->entry_count) {
12237 default:
12238 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12239 "0362 Unsupported MQ count. (%d)\n",
12240 mq->entry_count);
12241 if (mq->entry_count < 16)
12242 return -EINVAL;
12243 /* otherwise default to smallest count (drop through) */
12244 case 16:
James Smart5a6f1332011-03-11 16:05:35 -050012245 bf_set(lpfc_mq_context_ring_size,
12246 &mq_create_ext->u.request.context,
12247 LPFC_MQ_RING_SIZE_16);
James Smartb19a0612010-04-06 14:48:51 -040012248 break;
12249 case 32:
James Smart5a6f1332011-03-11 16:05:35 -050012250 bf_set(lpfc_mq_context_ring_size,
12251 &mq_create_ext->u.request.context,
12252 LPFC_MQ_RING_SIZE_32);
James Smartb19a0612010-04-06 14:48:51 -040012253 break;
12254 case 64:
James Smart5a6f1332011-03-11 16:05:35 -050012255 bf_set(lpfc_mq_context_ring_size,
12256 &mq_create_ext->u.request.context,
12257 LPFC_MQ_RING_SIZE_64);
James Smartb19a0612010-04-06 14:48:51 -040012258 break;
12259 case 128:
James Smart5a6f1332011-03-11 16:05:35 -050012260 bf_set(lpfc_mq_context_ring_size,
12261 &mq_create_ext->u.request.context,
12262 LPFC_MQ_RING_SIZE_128);
James Smartb19a0612010-04-06 14:48:51 -040012263 break;
12264 }
12265 list_for_each_entry(dmabuf, &mq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040012266 memset(dmabuf->virt, 0, hw_page_size);
James Smartb19a0612010-04-06 14:48:51 -040012267 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
12268 putPaddrLow(dmabuf->phys);
12269 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smart04c68492009-05-22 14:52:52 -040012270 putPaddrHigh(dmabuf->phys);
12271 }
12272 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smartb19a0612010-04-06 14:48:51 -040012273 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12274 &mq_create_ext->u.response);
12275 if (rc != MBX_SUCCESS) {
12276 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12277 "2795 MQ_CREATE_EXT failed with "
12278 "status x%x. Failback to MQ_CREATE.\n",
12279 rc);
12280 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
12281 mq_create = &mbox->u.mqe.un.mq_create;
12282 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12283 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
12284 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
12285 &mq_create->u.response);
12286 }
12287
James Smart04c68492009-05-22 14:52:52 -040012288 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart04c68492009-05-22 14:52:52 -040012289 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12290 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12291 if (shdr_status || shdr_add_status || rc) {
12292 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12293 "2502 MQ_CREATE mailbox failed with "
12294 "status x%x add_status x%x, mbx status x%x\n",
12295 shdr_status, shdr_add_status, rc);
12296 status = -ENXIO;
12297 goto out;
12298 }
James Smart04c68492009-05-22 14:52:52 -040012299 if (mq->queue_id == 0xFFFF) {
12300 status = -ENXIO;
12301 goto out;
12302 }
12303 mq->type = LPFC_MQ;
James Smart2a622bf2011-02-16 12:40:06 -050012304 mq->assoc_qid = cq->queue_id;
James Smart04c68492009-05-22 14:52:52 -040012305 mq->subtype = subtype;
12306 mq->host_index = 0;
12307 mq->hba_index = 0;
12308
12309 /* link the mq onto the parent cq child list */
12310 list_add_tail(&mq->list, &cq->child_list);
12311out:
James Smart8fa38512009-07-19 10:01:03 -040012312 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040012313 return status;
12314}
12315
12316/**
James Smart4f774512009-05-22 14:52:35 -040012317 * lpfc_wq_create - Create a Work Queue on the HBA
12318 * @phba: HBA structure that indicates port to create a queue on.
12319 * @wq: The queue structure to use to create the work queue.
12320 * @cq: The completion queue to bind this work queue to.
12321 * @subtype: The subtype of the work queue indicating its functionality.
12322 *
12323 * This function creates a work queue, as detailed in @wq, on a port, described
12324 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12325 *
12326 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12327 * is used to get the entry count and entry size that are necessary to
12328 * determine the number of pages to allocate and use for this queue. The @cq
12329 * is used to indicate which completion queue to bind this work queue to. This
12330 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12331 * work queue. This function is asynchronous and will wait for the mailbox
12332 * command to finish before continuing.
12333 *
12334 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040012335 * memory this function will return -ENOMEM. If the queue create mailbox command
12336 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012337 **/
12338uint32_t
12339lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
12340 struct lpfc_queue *cq, uint32_t subtype)
12341{
12342 struct lpfc_mbx_wq_create *wq_create;
12343 struct lpfc_dmabuf *dmabuf;
12344 LPFC_MBOXQ_t *mbox;
12345 int rc, length, status = 0;
12346 uint32_t shdr_status, shdr_add_status;
12347 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040012348 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart5a6f1332011-03-11 16:05:35 -050012349 struct dma_address *page;
James Smart49198b32010-04-06 15:04:33 -040012350
James Smart2e90f4b2011-12-13 13:22:37 -050012351 /* sanity check on queue memory */
12352 if (!wq || !cq)
12353 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040012354 if (!phba->sli4_hba.pc_sli4_params.supported)
12355 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040012356
12357 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12358 if (!mbox)
12359 return -ENOMEM;
12360 length = (sizeof(struct lpfc_mbx_wq_create) -
12361 sizeof(struct lpfc_sli4_cfg_mhdr));
12362 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12363 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
12364 length, LPFC_SLI4_MBX_EMBED);
12365 wq_create = &mbox->u.mqe.un.wq_create;
James Smart5a6f1332011-03-11 16:05:35 -050012366 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
James Smart4f774512009-05-22 14:52:35 -040012367 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
12368 wq->page_count);
12369 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
12370 cq->queue_id);
James Smart5a6f1332011-03-11 16:05:35 -050012371 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12372 phba->sli4_hba.pc_sli4_params.wqv);
12373 if (phba->sli4_hba.pc_sli4_params.wqv == LPFC_Q_CREATE_VERSION_1) {
12374 bf_set(lpfc_mbx_wq_create_wqe_count, &wq_create->u.request_1,
12375 wq->entry_count);
12376 switch (wq->entry_size) {
12377 default:
12378 case 64:
12379 bf_set(lpfc_mbx_wq_create_wqe_size,
12380 &wq_create->u.request_1,
12381 LPFC_WQ_WQE_SIZE_64);
12382 break;
12383 case 128:
12384 bf_set(lpfc_mbx_wq_create_wqe_size,
12385 &wq_create->u.request_1,
12386 LPFC_WQ_WQE_SIZE_128);
12387 break;
12388 }
12389 bf_set(lpfc_mbx_wq_create_page_size, &wq_create->u.request_1,
12390 (PAGE_SIZE/SLI4_PAGE_SIZE));
12391 page = wq_create->u.request_1.page;
12392 } else {
12393 page = wq_create->u.request.page;
12394 }
James Smart4f774512009-05-22 14:52:35 -040012395 list_for_each_entry(dmabuf, &wq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040012396 memset(dmabuf->virt, 0, hw_page_size);
James Smart5a6f1332011-03-11 16:05:35 -050012397 page[dmabuf->buffer_tag].addr_lo = putPaddrLow(dmabuf->phys);
12398 page[dmabuf->buffer_tag].addr_hi = putPaddrHigh(dmabuf->phys);
James Smart4f774512009-05-22 14:52:35 -040012399 }
12400 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12401 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040012402 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12403 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12404 if (shdr_status || shdr_add_status || rc) {
12405 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12406 "2503 WQ_CREATE mailbox failed with "
12407 "status x%x add_status x%x, mbx status x%x\n",
12408 shdr_status, shdr_add_status, rc);
12409 status = -ENXIO;
12410 goto out;
12411 }
12412 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
12413 if (wq->queue_id == 0xFFFF) {
12414 status = -ENXIO;
12415 goto out;
12416 }
12417 wq->type = LPFC_WQ;
James Smart2a622bf2011-02-16 12:40:06 -050012418 wq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040012419 wq->subtype = subtype;
12420 wq->host_index = 0;
12421 wq->hba_index = 0;
James Smartff78d8f2011-12-13 13:21:35 -050012422 wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
James Smart4f774512009-05-22 14:52:35 -040012423
12424 /* link the wq onto the parent cq child list */
12425 list_add_tail(&wq->list, &cq->child_list);
12426out:
James Smart8fa38512009-07-19 10:01:03 -040012427 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012428 return status;
12429}
12430
12431/**
James Smart73d91e52011-10-10 21:32:10 -040012432 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12433 * @phba: HBA structure that indicates port to create a queue on.
12434 * @rq: The queue structure to use for the receive queue.
12435 * @qno: The associated HBQ number
12436 *
12437 *
12438 * For SLI4 we need to adjust the RQ repost value based on
12439 * the number of buffers that are initially posted to the RQ.
12440 */
12441void
12442lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
12443{
12444 uint32_t cnt;
12445
James Smart2e90f4b2011-12-13 13:22:37 -050012446 /* sanity check on queue memory */
12447 if (!rq)
12448 return;
James Smart73d91e52011-10-10 21:32:10 -040012449 cnt = lpfc_hbq_defs[qno]->entry_count;
12450
12451 /* Recalc repost for RQs based on buffers initially posted */
12452 cnt = (cnt >> 3);
12453 if (cnt < LPFC_QUEUE_MIN_REPOST)
12454 cnt = LPFC_QUEUE_MIN_REPOST;
12455
12456 rq->entry_repost = cnt;
12457}
12458
12459/**
James Smart4f774512009-05-22 14:52:35 -040012460 * lpfc_rq_create - Create a Receive Queue on the HBA
12461 * @phba: HBA structure that indicates port to create a queue on.
12462 * @hrq: The queue structure to use to create the header receive queue.
12463 * @drq: The queue structure to use to create the data receive queue.
12464 * @cq: The completion queue to bind this work queue to.
12465 *
12466 * This function creates a receive buffer queue pair , as detailed in @hrq and
12467 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12468 * to the HBA.
12469 *
12470 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12471 * struct is used to get the entry count that is necessary to determine the
12472 * number of pages to use for this queue. The @cq is used to indicate which
12473 * completion queue to bind received buffers that are posted to these queues to.
12474 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12475 * receive queue pair. This function is asynchronous and will wait for the
12476 * mailbox command to finish before continuing.
12477 *
12478 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040012479 * memory this function will return -ENOMEM. If the queue create mailbox command
12480 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012481 **/
12482uint32_t
12483lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12484 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
12485{
12486 struct lpfc_mbx_rq_create *rq_create;
12487 struct lpfc_dmabuf *dmabuf;
12488 LPFC_MBOXQ_t *mbox;
12489 int rc, length, status = 0;
12490 uint32_t shdr_status, shdr_add_status;
12491 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040012492 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
12493
James Smart2e90f4b2011-12-13 13:22:37 -050012494 /* sanity check on queue memory */
12495 if (!hrq || !drq || !cq)
12496 return -ENODEV;
James Smart49198b32010-04-06 15:04:33 -040012497 if (!phba->sli4_hba.pc_sli4_params.supported)
12498 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040012499
12500 if (hrq->entry_count != drq->entry_count)
12501 return -EINVAL;
12502 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12503 if (!mbox)
12504 return -ENOMEM;
12505 length = (sizeof(struct lpfc_mbx_rq_create) -
12506 sizeof(struct lpfc_sli4_cfg_mhdr));
12507 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12508 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12509 length, LPFC_SLI4_MBX_EMBED);
12510 rq_create = &mbox->u.mqe.un.rq_create;
James Smart5a6f1332011-03-11 16:05:35 -050012511 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12512 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12513 phba->sli4_hba.pc_sli4_params.rqv);
12514 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12515 bf_set(lpfc_rq_context_rqe_count_1,
12516 &rq_create->u.request.context,
12517 hrq->entry_count);
12518 rq_create->u.request.context.buffer_size = LPFC_HDR_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040012519 bf_set(lpfc_rq_context_rqe_size,
12520 &rq_create->u.request.context,
12521 LPFC_RQE_SIZE_8);
12522 bf_set(lpfc_rq_context_page_size,
12523 &rq_create->u.request.context,
12524 (PAGE_SIZE/SLI4_PAGE_SIZE));
James Smart5a6f1332011-03-11 16:05:35 -050012525 } else {
12526 switch (hrq->entry_count) {
12527 default:
12528 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12529 "2535 Unsupported RQ count. (%d)\n",
12530 hrq->entry_count);
12531 if (hrq->entry_count < 512)
12532 return -EINVAL;
12533 /* otherwise default to smallest count (drop through) */
12534 case 512:
12535 bf_set(lpfc_rq_context_rqe_count,
12536 &rq_create->u.request.context,
12537 LPFC_RQ_RING_SIZE_512);
12538 break;
12539 case 1024:
12540 bf_set(lpfc_rq_context_rqe_count,
12541 &rq_create->u.request.context,
12542 LPFC_RQ_RING_SIZE_1024);
12543 break;
12544 case 2048:
12545 bf_set(lpfc_rq_context_rqe_count,
12546 &rq_create->u.request.context,
12547 LPFC_RQ_RING_SIZE_2048);
12548 break;
12549 case 4096:
12550 bf_set(lpfc_rq_context_rqe_count,
12551 &rq_create->u.request.context,
12552 LPFC_RQ_RING_SIZE_4096);
12553 break;
12554 }
12555 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12556 LPFC_HDR_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040012557 }
12558 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12559 cq->queue_id);
12560 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12561 hrq->page_count);
James Smart4f774512009-05-22 14:52:35 -040012562 list_for_each_entry(dmabuf, &hrq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040012563 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040012564 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12565 putPaddrLow(dmabuf->phys);
12566 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12567 putPaddrHigh(dmabuf->phys);
12568 }
12569 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12570 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart4f774512009-05-22 14:52:35 -040012571 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12572 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12573 if (shdr_status || shdr_add_status || rc) {
12574 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12575 "2504 RQ_CREATE mailbox failed with "
12576 "status x%x add_status x%x, mbx status x%x\n",
12577 shdr_status, shdr_add_status, rc);
12578 status = -ENXIO;
12579 goto out;
12580 }
12581 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12582 if (hrq->queue_id == 0xFFFF) {
12583 status = -ENXIO;
12584 goto out;
12585 }
12586 hrq->type = LPFC_HRQ;
James Smart2a622bf2011-02-16 12:40:06 -050012587 hrq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040012588 hrq->subtype = subtype;
12589 hrq->host_index = 0;
12590 hrq->hba_index = 0;
12591
12592 /* now create the data queue */
12593 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12594 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
12595 length, LPFC_SLI4_MBX_EMBED);
James Smart5a6f1332011-03-11 16:05:35 -050012596 bf_set(lpfc_mbox_hdr_version, &shdr->request,
12597 phba->sli4_hba.pc_sli4_params.rqv);
12598 if (phba->sli4_hba.pc_sli4_params.rqv == LPFC_Q_CREATE_VERSION_1) {
12599 bf_set(lpfc_rq_context_rqe_count_1,
James Smartc31098c2011-04-16 11:03:33 -040012600 &rq_create->u.request.context, hrq->entry_count);
James Smart5a6f1332011-03-11 16:05:35 -050012601 rq_create->u.request.context.buffer_size = LPFC_DATA_BUF_SIZE;
James Smartc31098c2011-04-16 11:03:33 -040012602 bf_set(lpfc_rq_context_rqe_size, &rq_create->u.request.context,
12603 LPFC_RQE_SIZE_8);
12604 bf_set(lpfc_rq_context_page_size, &rq_create->u.request.context,
12605 (PAGE_SIZE/SLI4_PAGE_SIZE));
James Smart5a6f1332011-03-11 16:05:35 -050012606 } else {
12607 switch (drq->entry_count) {
12608 default:
12609 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12610 "2536 Unsupported RQ count. (%d)\n",
12611 drq->entry_count);
12612 if (drq->entry_count < 512)
12613 return -EINVAL;
12614 /* otherwise default to smallest count (drop through) */
12615 case 512:
12616 bf_set(lpfc_rq_context_rqe_count,
12617 &rq_create->u.request.context,
12618 LPFC_RQ_RING_SIZE_512);
12619 break;
12620 case 1024:
12621 bf_set(lpfc_rq_context_rqe_count,
12622 &rq_create->u.request.context,
12623 LPFC_RQ_RING_SIZE_1024);
12624 break;
12625 case 2048:
12626 bf_set(lpfc_rq_context_rqe_count,
12627 &rq_create->u.request.context,
12628 LPFC_RQ_RING_SIZE_2048);
12629 break;
12630 case 4096:
12631 bf_set(lpfc_rq_context_rqe_count,
12632 &rq_create->u.request.context,
12633 LPFC_RQ_RING_SIZE_4096);
12634 break;
12635 }
12636 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
12637 LPFC_DATA_BUF_SIZE);
James Smart4f774512009-05-22 14:52:35 -040012638 }
12639 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
12640 cq->queue_id);
12641 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
12642 drq->page_count);
James Smart4f774512009-05-22 14:52:35 -040012643 list_for_each_entry(dmabuf, &drq->page_list, list) {
12644 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
12645 putPaddrLow(dmabuf->phys);
12646 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
12647 putPaddrHigh(dmabuf->phys);
12648 }
12649 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
12650 /* The IOCTL status is embedded in the mailbox subheader. */
12651 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
12652 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12653 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12654 if (shdr_status || shdr_add_status || rc) {
12655 status = -ENXIO;
12656 goto out;
12657 }
12658 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
12659 if (drq->queue_id == 0xFFFF) {
12660 status = -ENXIO;
12661 goto out;
12662 }
12663 drq->type = LPFC_DRQ;
James Smart2a622bf2011-02-16 12:40:06 -050012664 drq->assoc_qid = cq->queue_id;
James Smart4f774512009-05-22 14:52:35 -040012665 drq->subtype = subtype;
12666 drq->host_index = 0;
12667 drq->hba_index = 0;
12668
12669 /* link the header and data RQs onto the parent cq child list */
12670 list_add_tail(&hrq->list, &cq->child_list);
12671 list_add_tail(&drq->list, &cq->child_list);
12672
12673out:
James Smart8fa38512009-07-19 10:01:03 -040012674 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012675 return status;
12676}
12677
12678/**
12679 * lpfc_eq_destroy - Destroy an event Queue on the HBA
12680 * @eq: The queue structure associated with the queue to destroy.
12681 *
12682 * This function destroys a queue, as detailed in @eq by sending an mailbox
12683 * command, specific to the type of queue, to the HBA.
12684 *
12685 * The @eq struct is used to get the queue ID of the queue to destroy.
12686 *
12687 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040012688 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012689 **/
12690uint32_t
12691lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
12692{
12693 LPFC_MBOXQ_t *mbox;
12694 int rc, length, status = 0;
12695 uint32_t shdr_status, shdr_add_status;
12696 union lpfc_sli4_cfg_shdr *shdr;
12697
James Smart2e90f4b2011-12-13 13:22:37 -050012698 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040012699 if (!eq)
12700 return -ENODEV;
12701 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
12702 if (!mbox)
12703 return -ENOMEM;
12704 length = (sizeof(struct lpfc_mbx_eq_destroy) -
12705 sizeof(struct lpfc_sli4_cfg_mhdr));
12706 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12707 LPFC_MBOX_OPCODE_EQ_DESTROY,
12708 length, LPFC_SLI4_MBX_EMBED);
12709 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
12710 eq->queue_id);
12711 mbox->vport = eq->phba->pport;
12712 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12713
12714 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
12715 /* The IOCTL status is embedded in the mailbox subheader. */
12716 shdr = (union lpfc_sli4_cfg_shdr *)
12717 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
12718 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12719 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12720 if (shdr_status || shdr_add_status || rc) {
12721 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12722 "2505 EQ_DESTROY mailbox failed with "
12723 "status x%x add_status x%x, mbx status x%x\n",
12724 shdr_status, shdr_add_status, rc);
12725 status = -ENXIO;
12726 }
12727
12728 /* Remove eq from any list */
12729 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040012730 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012731 return status;
12732}
12733
12734/**
12735 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
12736 * @cq: The queue structure associated with the queue to destroy.
12737 *
12738 * This function destroys a queue, as detailed in @cq by sending an mailbox
12739 * command, specific to the type of queue, to the HBA.
12740 *
12741 * The @cq struct is used to get the queue ID of the queue to destroy.
12742 *
12743 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040012744 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012745 **/
12746uint32_t
12747lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
12748{
12749 LPFC_MBOXQ_t *mbox;
12750 int rc, length, status = 0;
12751 uint32_t shdr_status, shdr_add_status;
12752 union lpfc_sli4_cfg_shdr *shdr;
12753
James Smart2e90f4b2011-12-13 13:22:37 -050012754 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040012755 if (!cq)
12756 return -ENODEV;
12757 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
12758 if (!mbox)
12759 return -ENOMEM;
12760 length = (sizeof(struct lpfc_mbx_cq_destroy) -
12761 sizeof(struct lpfc_sli4_cfg_mhdr));
12762 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12763 LPFC_MBOX_OPCODE_CQ_DESTROY,
12764 length, LPFC_SLI4_MBX_EMBED);
12765 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
12766 cq->queue_id);
12767 mbox->vport = cq->phba->pport;
12768 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12769 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
12770 /* The IOCTL status is embedded in the mailbox subheader. */
12771 shdr = (union lpfc_sli4_cfg_shdr *)
12772 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
12773 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12774 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12775 if (shdr_status || shdr_add_status || rc) {
12776 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12777 "2506 CQ_DESTROY mailbox failed with "
12778 "status x%x add_status x%x, mbx status x%x\n",
12779 shdr_status, shdr_add_status, rc);
12780 status = -ENXIO;
12781 }
12782 /* Remove cq from any list */
12783 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040012784 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012785 return status;
12786}
12787
12788/**
James Smart04c68492009-05-22 14:52:52 -040012789 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
12790 * @qm: The queue structure associated with the queue to destroy.
12791 *
12792 * This function destroys a queue, as detailed in @mq by sending an mailbox
12793 * command, specific to the type of queue, to the HBA.
12794 *
12795 * The @mq struct is used to get the queue ID of the queue to destroy.
12796 *
12797 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040012798 * command fails this function will return -ENXIO.
James Smart04c68492009-05-22 14:52:52 -040012799 **/
12800uint32_t
12801lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
12802{
12803 LPFC_MBOXQ_t *mbox;
12804 int rc, length, status = 0;
12805 uint32_t shdr_status, shdr_add_status;
12806 union lpfc_sli4_cfg_shdr *shdr;
12807
James Smart2e90f4b2011-12-13 13:22:37 -050012808 /* sanity check on queue memory */
James Smart04c68492009-05-22 14:52:52 -040012809 if (!mq)
12810 return -ENODEV;
12811 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
12812 if (!mbox)
12813 return -ENOMEM;
12814 length = (sizeof(struct lpfc_mbx_mq_destroy) -
12815 sizeof(struct lpfc_sli4_cfg_mhdr));
12816 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
12817 LPFC_MBOX_OPCODE_MQ_DESTROY,
12818 length, LPFC_SLI4_MBX_EMBED);
12819 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
12820 mq->queue_id);
12821 mbox->vport = mq->phba->pport;
12822 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12823 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
12824 /* The IOCTL status is embedded in the mailbox subheader. */
12825 shdr = (union lpfc_sli4_cfg_shdr *)
12826 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
12827 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12828 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12829 if (shdr_status || shdr_add_status || rc) {
12830 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12831 "2507 MQ_DESTROY mailbox failed with "
12832 "status x%x add_status x%x, mbx status x%x\n",
12833 shdr_status, shdr_add_status, rc);
12834 status = -ENXIO;
12835 }
12836 /* Remove mq from any list */
12837 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040012838 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040012839 return status;
12840}
12841
12842/**
James Smart4f774512009-05-22 14:52:35 -040012843 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
12844 * @wq: The queue structure associated with the queue to destroy.
12845 *
12846 * This function destroys a queue, as detailed in @wq by sending an mailbox
12847 * command, specific to the type of queue, to the HBA.
12848 *
12849 * The @wq struct is used to get the queue ID of the queue to destroy.
12850 *
12851 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040012852 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012853 **/
12854uint32_t
12855lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
12856{
12857 LPFC_MBOXQ_t *mbox;
12858 int rc, length, status = 0;
12859 uint32_t shdr_status, shdr_add_status;
12860 union lpfc_sli4_cfg_shdr *shdr;
12861
James Smart2e90f4b2011-12-13 13:22:37 -050012862 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040012863 if (!wq)
12864 return -ENODEV;
12865 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
12866 if (!mbox)
12867 return -ENOMEM;
12868 length = (sizeof(struct lpfc_mbx_wq_destroy) -
12869 sizeof(struct lpfc_sli4_cfg_mhdr));
12870 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12871 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
12872 length, LPFC_SLI4_MBX_EMBED);
12873 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
12874 wq->queue_id);
12875 mbox->vport = wq->phba->pport;
12876 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12877 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
12878 shdr = (union lpfc_sli4_cfg_shdr *)
12879 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
12880 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12881 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12882 if (shdr_status || shdr_add_status || rc) {
12883 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12884 "2508 WQ_DESTROY mailbox failed with "
12885 "status x%x add_status x%x, mbx status x%x\n",
12886 shdr_status, shdr_add_status, rc);
12887 status = -ENXIO;
12888 }
12889 /* Remove wq from any list */
12890 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040012891 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012892 return status;
12893}
12894
12895/**
12896 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
12897 * @rq: The queue structure associated with the queue to destroy.
12898 *
12899 * This function destroys a queue, as detailed in @rq by sending an mailbox
12900 * command, specific to the type of queue, to the HBA.
12901 *
12902 * The @rq struct is used to get the queue ID of the queue to destroy.
12903 *
12904 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040012905 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040012906 **/
12907uint32_t
12908lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
12909 struct lpfc_queue *drq)
12910{
12911 LPFC_MBOXQ_t *mbox;
12912 int rc, length, status = 0;
12913 uint32_t shdr_status, shdr_add_status;
12914 union lpfc_sli4_cfg_shdr *shdr;
12915
James Smart2e90f4b2011-12-13 13:22:37 -050012916 /* sanity check on queue memory */
James Smart4f774512009-05-22 14:52:35 -040012917 if (!hrq || !drq)
12918 return -ENODEV;
12919 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
12920 if (!mbox)
12921 return -ENOMEM;
12922 length = (sizeof(struct lpfc_mbx_rq_destroy) -
James Smartfedd3b72011-02-16 12:39:24 -050012923 sizeof(struct lpfc_sli4_cfg_mhdr));
James Smart4f774512009-05-22 14:52:35 -040012924 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12925 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
12926 length, LPFC_SLI4_MBX_EMBED);
12927 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
12928 hrq->queue_id);
12929 mbox->vport = hrq->phba->pport;
12930 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
12931 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
12932 /* The IOCTL status is embedded in the mailbox subheader. */
12933 shdr = (union lpfc_sli4_cfg_shdr *)
12934 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
12935 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12936 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12937 if (shdr_status || shdr_add_status || rc) {
12938 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12939 "2509 RQ_DESTROY mailbox failed with "
12940 "status x%x add_status x%x, mbx status x%x\n",
12941 shdr_status, shdr_add_status, rc);
12942 if (rc != MBX_TIMEOUT)
12943 mempool_free(mbox, hrq->phba->mbox_mem_pool);
12944 return -ENXIO;
12945 }
12946 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
12947 drq->queue_id);
12948 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
12949 shdr = (union lpfc_sli4_cfg_shdr *)
12950 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
12951 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12952 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12953 if (shdr_status || shdr_add_status || rc) {
12954 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12955 "2510 RQ_DESTROY mailbox failed with "
12956 "status x%x add_status x%x, mbx status x%x\n",
12957 shdr_status, shdr_add_status, rc);
12958 status = -ENXIO;
12959 }
12960 list_del_init(&hrq->list);
12961 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040012962 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040012963 return status;
12964}
12965
12966/**
12967 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
12968 * @phba: The virtual port for which this call being executed.
12969 * @pdma_phys_addr0: Physical address of the 1st SGL page.
12970 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
12971 * @xritag: the xritag that ties this io to the SGL pages.
12972 *
12973 * This routine will post the sgl pages for the IO that has the xritag
12974 * that is in the iocbq structure. The xritag is assigned during iocbq
12975 * creation and persists for as long as the driver is loaded.
12976 * if the caller has fewer than 256 scatter gather segments to map then
12977 * pdma_phys_addr1 should be 0.
12978 * If the caller needs to map more than 256 scatter gather segment then
12979 * pdma_phys_addr1 should be a valid physical address.
12980 * physical address for SGLs must be 64 byte aligned.
12981 * If you are going to map 2 SGL's then the first one must have 256 entries
12982 * the second sgl can have between 1 and 256 entries.
12983 *
12984 * Return codes:
12985 * 0 - Success
12986 * -ENXIO, -ENOMEM - Failure
12987 **/
12988int
12989lpfc_sli4_post_sgl(struct lpfc_hba *phba,
12990 dma_addr_t pdma_phys_addr0,
12991 dma_addr_t pdma_phys_addr1,
12992 uint16_t xritag)
12993{
12994 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
12995 LPFC_MBOXQ_t *mbox;
12996 int rc;
12997 uint32_t shdr_status, shdr_add_status;
James Smart6d368e52011-05-24 11:44:12 -040012998 uint32_t mbox_tmo;
James Smart4f774512009-05-22 14:52:35 -040012999 union lpfc_sli4_cfg_shdr *shdr;
13000
13001 if (xritag == NO_XRI) {
13002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13003 "0364 Invalid param:\n");
13004 return -EINVAL;
13005 }
13006
13007 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13008 if (!mbox)
13009 return -ENOMEM;
13010
13011 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13012 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13013 sizeof(struct lpfc_mbx_post_sgl_pages) -
James Smartfedd3b72011-02-16 12:39:24 -050013014 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
James Smart4f774512009-05-22 14:52:35 -040013015
13016 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
13017 &mbox->u.mqe.un.post_sgl_pages;
13018 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
13019 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
13020
13021 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
13022 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
13023 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
13024 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
13025
13026 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
13027 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
13028 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
13029 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
13030 if (!phba->sli4_hba.intr_enable)
13031 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smart6d368e52011-05-24 11:44:12 -040013032 else {
James Smarta183a152011-10-10 21:32:43 -040013033 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -040013034 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13035 }
James Smart4f774512009-05-22 14:52:35 -040013036 /* The IOCTL status is embedded in the mailbox subheader. */
13037 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
13038 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13039 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13040 if (rc != MBX_TIMEOUT)
13041 mempool_free(mbox, phba->mbox_mem_pool);
13042 if (shdr_status || shdr_add_status || rc) {
13043 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13044 "2511 POST_SGL mailbox failed with "
13045 "status x%x add_status x%x, mbx status x%x\n",
13046 shdr_status, shdr_add_status, rc);
13047 rc = -ENXIO;
13048 }
13049 return 0;
13050}
James Smart4f774512009-05-22 14:52:35 -040013051
13052/**
James Smart88a2cfb2011-07-22 18:36:33 -040013053 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
James Smart6d368e52011-05-24 11:44:12 -040013054 * @phba: pointer to lpfc hba data structure.
13055 *
13056 * This routine is invoked to post rpi header templates to the
James Smart88a2cfb2011-07-22 18:36:33 -040013057 * HBA consistent with the SLI-4 interface spec. This routine
13058 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13059 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6d368e52011-05-24 11:44:12 -040013060 *
James Smart88a2cfb2011-07-22 18:36:33 -040013061 * Returns
13062 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13063 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13064 **/
James Smart6d368e52011-05-24 11:44:12 -040013065uint16_t
13066lpfc_sli4_alloc_xri(struct lpfc_hba *phba)
13067{
13068 unsigned long xri;
13069
13070 /*
13071 * Fetch the next logical xri. Because this index is logical,
13072 * the driver starts at 0 each time.
13073 */
13074 spin_lock_irq(&phba->hbalock);
13075 xri = find_next_zero_bit(phba->sli4_hba.xri_bmask,
13076 phba->sli4_hba.max_cfg_param.max_xri, 0);
13077 if (xri >= phba->sli4_hba.max_cfg_param.max_xri) {
13078 spin_unlock_irq(&phba->hbalock);
13079 return NO_XRI;
13080 } else {
13081 set_bit(xri, phba->sli4_hba.xri_bmask);
13082 phba->sli4_hba.max_cfg_param.xri_used++;
13083 phba->sli4_hba.xri_count++;
13084 }
13085
13086 spin_unlock_irq(&phba->hbalock);
13087 return xri;
13088}
13089
13090/**
13091 * lpfc_sli4_free_xri - Release an xri for reuse.
13092 * @phba: pointer to lpfc hba data structure.
13093 *
13094 * This routine is invoked to release an xri to the pool of
13095 * available rpis maintained by the driver.
13096 **/
13097void
13098__lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13099{
13100 if (test_and_clear_bit(xri, phba->sli4_hba.xri_bmask)) {
13101 phba->sli4_hba.xri_count--;
13102 phba->sli4_hba.max_cfg_param.xri_used--;
13103 }
13104}
13105
13106/**
13107 * lpfc_sli4_free_xri - Release an xri for reuse.
13108 * @phba: pointer to lpfc hba data structure.
13109 *
13110 * This routine is invoked to release an xri to the pool of
13111 * available rpis maintained by the driver.
13112 **/
13113void
13114lpfc_sli4_free_xri(struct lpfc_hba *phba, int xri)
13115{
13116 spin_lock_irq(&phba->hbalock);
13117 __lpfc_sli4_free_xri(phba, xri);
13118 spin_unlock_irq(&phba->hbalock);
13119}
13120
13121/**
James Smart4f774512009-05-22 14:52:35 -040013122 * lpfc_sli4_next_xritag - Get an xritag for the io
13123 * @phba: Pointer to HBA context object.
13124 *
13125 * This function gets an xritag for the iocb. If there is no unused xritag
13126 * it will return 0xffff.
13127 * The function returns the allocated xritag if successful, else returns zero.
13128 * Zero is not a valid xritag.
13129 * The caller is not required to hold any lock.
13130 **/
13131uint16_t
13132lpfc_sli4_next_xritag(struct lpfc_hba *phba)
13133{
James Smart6d368e52011-05-24 11:44:12 -040013134 uint16_t xri_index;
James Smart4f774512009-05-22 14:52:35 -040013135
James Smart6d368e52011-05-24 11:44:12 -040013136 xri_index = lpfc_sli4_alloc_xri(phba);
13137 if (xri_index != NO_XRI)
13138 return xri_index;
13139
13140 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart4f774512009-05-22 14:52:35 -040013141 "2004 Failed to allocate XRI.last XRITAG is %d"
13142 " Max XRI is %d, Used XRI is %d\n",
James Smart6d368e52011-05-24 11:44:12 -040013143 xri_index,
James Smart4f774512009-05-22 14:52:35 -040013144 phba->sli4_hba.max_cfg_param.max_xri,
13145 phba->sli4_hba.max_cfg_param.xri_used);
James Smart6d368e52011-05-24 11:44:12 -040013146 return NO_XRI;
James Smart4f774512009-05-22 14:52:35 -040013147}
13148
13149/**
James Smart6d368e52011-05-24 11:44:12 -040013150 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
James Smart4f774512009-05-22 14:52:35 -040013151 * @phba: pointer to lpfc hba data structure.
13152 *
13153 * This routine is invoked to post a block of driver's sgl pages to the
13154 * HBA using non-embedded mailbox command. No Lock is held. This routine
13155 * is only called when the driver is loading and after all IO has been
13156 * stopped.
13157 **/
13158int
James Smart6d368e52011-05-24 11:44:12 -040013159lpfc_sli4_post_els_sgl_list(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -040013160{
13161 struct lpfc_sglq *sglq_entry;
13162 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13163 struct sgl_page_pairs *sgl_pg_pairs;
13164 void *viraddr;
13165 LPFC_MBOXQ_t *mbox;
13166 uint32_t reqlen, alloclen, pg_pairs;
13167 uint32_t mbox_tmo;
James Smart6d368e52011-05-24 11:44:12 -040013168 uint16_t xritag_start = 0, lxri = 0;
James Smart4f774512009-05-22 14:52:35 -040013169 int els_xri_cnt, rc = 0;
13170 uint32_t shdr_status, shdr_add_status;
13171 union lpfc_sli4_cfg_shdr *shdr;
13172
13173 /* The number of sgls to be posted */
13174 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
13175
13176 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
13177 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040013178 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040013179 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13180 "2559 Block sgl registration required DMA "
13181 "size (%d) great than a page\n", reqlen);
13182 return -ENOMEM;
13183 }
13184 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
James Smart6d368e52011-05-24 11:44:12 -040013185 if (!mbox)
James Smart4f774512009-05-22 14:52:35 -040013186 return -ENOMEM;
James Smart4f774512009-05-22 14:52:35 -040013187
13188 /* Allocate DMA memory and set up the non-embedded mailbox command */
13189 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13190 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13191 LPFC_SLI4_MBX_NEMBED);
13192
13193 if (alloclen < reqlen) {
13194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13195 "0285 Allocated DMA memory size (%d) is "
13196 "less than the requested DMA memory "
13197 "size (%d)\n", alloclen, reqlen);
13198 lpfc_sli4_mbox_cmd_free(phba, mbox);
13199 return -ENOMEM;
13200 }
James Smart4f774512009-05-22 14:52:35 -040013201 /* Set up the SGL pages in the non-embedded DMA pages */
James Smart6d368e52011-05-24 11:44:12 -040013202 viraddr = mbox->sge_array->addr[0];
James Smart4f774512009-05-22 14:52:35 -040013203 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13204 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13205
13206 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
13207 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
James Smart6d368e52011-05-24 11:44:12 -040013208
13209 /*
13210 * Assign the sglq a physical xri only if the driver has not
13211 * initialized those resources. A port reset only needs
13212 * the sglq's posted.
13213 */
13214 if (bf_get(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
13215 LPFC_XRI_RSRC_RDY) {
13216 lxri = lpfc_sli4_next_xritag(phba);
13217 if (lxri == NO_XRI) {
13218 lpfc_sli4_mbox_cmd_free(phba, mbox);
13219 return -ENOMEM;
13220 }
13221 sglq_entry->sli4_lxritag = lxri;
13222 sglq_entry->sli4_xritag = phba->sli4_hba.xri_ids[lxri];
13223 }
13224
James Smart4f774512009-05-22 14:52:35 -040013225 /* Set up the sge entry */
13226 sgl_pg_pairs->sgl_pg0_addr_lo =
13227 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13228 sgl_pg_pairs->sgl_pg0_addr_hi =
13229 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13230 sgl_pg_pairs->sgl_pg1_addr_lo =
13231 cpu_to_le32(putPaddrLow(0));
13232 sgl_pg_pairs->sgl_pg1_addr_hi =
13233 cpu_to_le32(putPaddrHigh(0));
James Smart6d368e52011-05-24 11:44:12 -040013234
James Smart4f774512009-05-22 14:52:35 -040013235 /* Keep the first xritag on the list */
13236 if (pg_pairs == 0)
13237 xritag_start = sglq_entry->sli4_xritag;
13238 sgl_pg_pairs++;
13239 }
James Smart6d368e52011-05-24 11:44:12 -040013240
13241 /* Complete initialization and perform endian conversion. */
James Smart4f774512009-05-22 14:52:35 -040013242 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart6a9c52c2009-10-02 15:16:51 -040013243 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
James Smart4f774512009-05-22 14:52:35 -040013244 sgl->word0 = cpu_to_le32(sgl->word0);
James Smart4f774512009-05-22 14:52:35 -040013245 if (!phba->sli4_hba.intr_enable)
13246 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13247 else {
James Smarta183a152011-10-10 21:32:43 -040013248 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040013249 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13250 }
13251 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13252 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13253 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13254 if (rc != MBX_TIMEOUT)
13255 lpfc_sli4_mbox_cmd_free(phba, mbox);
13256 if (shdr_status || shdr_add_status || rc) {
13257 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13258 "2513 POST_SGL_BLOCK mailbox command failed "
13259 "status x%x add_status x%x mbx status x%x\n",
13260 shdr_status, shdr_add_status, rc);
13261 rc = -ENXIO;
13262 }
James Smart6d368e52011-05-24 11:44:12 -040013263
13264 if (rc == 0)
13265 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags,
13266 LPFC_XRI_RSRC_RDY);
13267 return rc;
13268}
13269
13270/**
13271 * lpfc_sli4_post_els_sgl_list_ext - post a block of ELS sgls to the port.
13272 * @phba: pointer to lpfc hba data structure.
13273 *
13274 * This routine is invoked to post a block of driver's sgl pages to the
13275 * HBA using non-embedded mailbox command. No Lock is held. This routine
13276 * is only called when the driver is loading and after all IO has been
13277 * stopped.
13278 **/
13279int
13280lpfc_sli4_post_els_sgl_list_ext(struct lpfc_hba *phba)
13281{
13282 struct lpfc_sglq *sglq_entry;
13283 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13284 struct sgl_page_pairs *sgl_pg_pairs;
13285 void *viraddr;
13286 LPFC_MBOXQ_t *mbox;
13287 uint32_t reqlen, alloclen, index;
13288 uint32_t mbox_tmo;
James Smart25090d32012-03-01 22:36:54 -050013289 uint16_t rsrc_start, rsrc_size, els_xri_cnt, post_els_xri_cnt;
James Smart6d368e52011-05-24 11:44:12 -040013290 uint16_t xritag_start = 0, lxri = 0;
13291 struct lpfc_rsrc_blks *rsrc_blk;
13292 int cnt, ttl_cnt, rc = 0;
13293 int loop_cnt;
13294 uint32_t shdr_status, shdr_add_status;
13295 union lpfc_sli4_cfg_shdr *shdr;
13296
13297 /* The number of sgls to be posted */
13298 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
13299
13300 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
13301 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13302 if (reqlen > SLI4_PAGE_SIZE) {
13303 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13304 "2989 Block sgl registration required DMA "
13305 "size (%d) great than a page\n", reqlen);
13306 return -ENOMEM;
13307 }
13308
13309 cnt = 0;
13310 ttl_cnt = 0;
James Smart25090d32012-03-01 22:36:54 -050013311 post_els_xri_cnt = els_xri_cnt;
James Smart6d368e52011-05-24 11:44:12 -040013312 list_for_each_entry(rsrc_blk, &phba->sli4_hba.lpfc_xri_blk_list,
13313 list) {
13314 rsrc_start = rsrc_blk->rsrc_start;
13315 rsrc_size = rsrc_blk->rsrc_size;
13316
13317 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13318 "3014 Working ELS Extent start %d, cnt %d\n",
13319 rsrc_start, rsrc_size);
13320
James Smart25090d32012-03-01 22:36:54 -050013321 loop_cnt = min(post_els_xri_cnt, rsrc_size);
13322 if (loop_cnt < post_els_xri_cnt) {
13323 post_els_xri_cnt -= loop_cnt;
13324 ttl_cnt += loop_cnt;
13325 } else
13326 ttl_cnt += post_els_xri_cnt;
James Smart6d368e52011-05-24 11:44:12 -040013327
13328 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13329 if (!mbox)
13330 return -ENOMEM;
13331 /*
13332 * Allocate DMA memory and set up the non-embedded mailbox
13333 * command.
13334 */
13335 alloclen = lpfc_sli4_config(phba, mbox,
13336 LPFC_MBOX_SUBSYSTEM_FCOE,
13337 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13338 reqlen, LPFC_SLI4_MBX_NEMBED);
13339 if (alloclen < reqlen) {
13340 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13341 "2987 Allocated DMA memory size (%d) "
13342 "is less than the requested DMA memory "
13343 "size (%d)\n", alloclen, reqlen);
13344 lpfc_sli4_mbox_cmd_free(phba, mbox);
13345 return -ENOMEM;
13346 }
13347
13348 /* Set up the SGL pages in the non-embedded DMA pages */
13349 viraddr = mbox->sge_array->addr[0];
13350 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13351 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13352
13353 /*
13354 * The starting resource may not begin at zero. Control
13355 * the loop variants via the block resource parameters,
13356 * but handle the sge pointers with a zero-based index
13357 * that doesn't get reset per loop pass.
13358 */
13359 for (index = rsrc_start;
13360 index < rsrc_start + loop_cnt;
13361 index++) {
13362 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[cnt];
13363
13364 /*
13365 * Assign the sglq a physical xri only if the driver
13366 * has not initialized those resources. A port reset
13367 * only needs the sglq's posted.
13368 */
13369 if (bf_get(lpfc_xri_rsrc_rdy,
13370 &phba->sli4_hba.sli4_flags) !=
13371 LPFC_XRI_RSRC_RDY) {
13372 lxri = lpfc_sli4_next_xritag(phba);
13373 if (lxri == NO_XRI) {
13374 lpfc_sli4_mbox_cmd_free(phba, mbox);
13375 rc = -ENOMEM;
13376 goto err_exit;
13377 }
13378 sglq_entry->sli4_lxritag = lxri;
13379 sglq_entry->sli4_xritag =
13380 phba->sli4_hba.xri_ids[lxri];
13381 }
13382
13383 /* Set up the sge entry */
13384 sgl_pg_pairs->sgl_pg0_addr_lo =
13385 cpu_to_le32(putPaddrLow(sglq_entry->phys));
13386 sgl_pg_pairs->sgl_pg0_addr_hi =
13387 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
13388 sgl_pg_pairs->sgl_pg1_addr_lo =
13389 cpu_to_le32(putPaddrLow(0));
13390 sgl_pg_pairs->sgl_pg1_addr_hi =
13391 cpu_to_le32(putPaddrHigh(0));
13392
13393 /* Track the starting physical XRI for the mailbox. */
13394 if (index == rsrc_start)
13395 xritag_start = sglq_entry->sli4_xritag;
13396 sgl_pg_pairs++;
13397 cnt++;
13398 }
13399
13400 /* Complete initialization and perform endian conversion. */
13401 rsrc_blk->rsrc_used += loop_cnt;
13402 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13403 bf_set(lpfc_post_sgl_pages_xricnt, sgl, loop_cnt);
13404 sgl->word0 = cpu_to_le32(sgl->word0);
13405
13406 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13407 "3015 Post ELS Extent SGL, start %d, "
13408 "cnt %d, used %d\n",
13409 xritag_start, loop_cnt, rsrc_blk->rsrc_used);
13410 if (!phba->sli4_hba.intr_enable)
13411 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13412 else {
James Smarta183a152011-10-10 21:32:43 -040013413 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -040013414 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13415 }
13416 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13417 shdr_status = bf_get(lpfc_mbox_hdr_status,
13418 &shdr->response);
13419 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13420 &shdr->response);
13421 if (rc != MBX_TIMEOUT)
13422 lpfc_sli4_mbox_cmd_free(phba, mbox);
13423 if (shdr_status || shdr_add_status || rc) {
13424 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13425 "2988 POST_SGL_BLOCK mailbox "
13426 "command failed status x%x "
13427 "add_status x%x mbx status x%x\n",
13428 shdr_status, shdr_add_status, rc);
13429 rc = -ENXIO;
13430 goto err_exit;
13431 }
13432 if (ttl_cnt >= els_xri_cnt)
13433 break;
13434 }
13435
13436 err_exit:
13437 if (rc == 0)
13438 bf_set(lpfc_xri_rsrc_rdy, &phba->sli4_hba.sli4_flags,
13439 LPFC_XRI_RSRC_RDY);
James Smart4f774512009-05-22 14:52:35 -040013440 return rc;
13441}
13442
13443/**
13444 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13445 * @phba: pointer to lpfc hba data structure.
13446 * @sblist: pointer to scsi buffer list.
13447 * @count: number of scsi buffers on the list.
13448 *
13449 * This routine is invoked to post a block of @count scsi sgl pages from a
13450 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13451 * No Lock is held.
13452 *
13453 **/
13454int
13455lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
13456 int cnt)
13457{
13458 struct lpfc_scsi_buf *psb;
13459 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13460 struct sgl_page_pairs *sgl_pg_pairs;
13461 void *viraddr;
13462 LPFC_MBOXQ_t *mbox;
13463 uint32_t reqlen, alloclen, pg_pairs;
13464 uint32_t mbox_tmo;
13465 uint16_t xritag_start = 0;
13466 int rc = 0;
13467 uint32_t shdr_status, shdr_add_status;
13468 dma_addr_t pdma_phys_bpl1;
13469 union lpfc_sli4_cfg_shdr *shdr;
13470
13471 /* Calculate the requested length of the dma memory */
13472 reqlen = cnt * sizeof(struct sgl_page_pairs) +
13473 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040013474 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040013475 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13476 "0217 Block sgl registration required DMA "
13477 "size (%d) great than a page\n", reqlen);
13478 return -ENOMEM;
13479 }
13480 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13481 if (!mbox) {
13482 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13483 "0283 Failed to allocate mbox cmd memory\n");
13484 return -ENOMEM;
13485 }
13486
13487 /* Allocate DMA memory and set up the non-embedded mailbox command */
13488 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13489 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
13490 LPFC_SLI4_MBX_NEMBED);
13491
13492 if (alloclen < reqlen) {
13493 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13494 "2561 Allocated DMA memory size (%d) is "
13495 "less than the requested DMA memory "
13496 "size (%d)\n", alloclen, reqlen);
13497 lpfc_sli4_mbox_cmd_free(phba, mbox);
13498 return -ENOMEM;
13499 }
James Smart6d368e52011-05-24 11:44:12 -040013500
James Smart4f774512009-05-22 14:52:35 -040013501 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040013502 viraddr = mbox->sge_array->addr[0];
13503
13504 /* Set up the SGL pages in the non-embedded DMA pages */
13505 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13506 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13507
13508 pg_pairs = 0;
13509 list_for_each_entry(psb, sblist, list) {
13510 /* Set up the sge entry */
13511 sgl_pg_pairs->sgl_pg0_addr_lo =
13512 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13513 sgl_pg_pairs->sgl_pg0_addr_hi =
13514 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13515 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13516 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
13517 else
13518 pdma_phys_bpl1 = 0;
13519 sgl_pg_pairs->sgl_pg1_addr_lo =
13520 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13521 sgl_pg_pairs->sgl_pg1_addr_hi =
13522 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13523 /* Keep the first xritag on the list */
13524 if (pg_pairs == 0)
13525 xritag_start = psb->cur_iocbq.sli4_xritag;
13526 sgl_pg_pairs++;
13527 pg_pairs++;
13528 }
13529 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
13530 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13531 /* Perform endian conversion if necessary */
13532 sgl->word0 = cpu_to_le32(sgl->word0);
13533
13534 if (!phba->sli4_hba.intr_enable)
13535 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13536 else {
James Smarta183a152011-10-10 21:32:43 -040013537 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart4f774512009-05-22 14:52:35 -040013538 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13539 }
13540 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13541 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13542 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
13543 if (rc != MBX_TIMEOUT)
13544 lpfc_sli4_mbox_cmd_free(phba, mbox);
13545 if (shdr_status || shdr_add_status || rc) {
13546 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13547 "2564 POST_SGL_BLOCK mailbox command failed "
13548 "status x%x add_status x%x mbx status x%x\n",
13549 shdr_status, shdr_add_status, rc);
13550 rc = -ENXIO;
13551 }
13552 return rc;
13553}
13554
13555/**
James Smart6d368e52011-05-24 11:44:12 -040013556 * lpfc_sli4_post_scsi_sgl_blk_ext - post a block of scsi sgls to the port.
13557 * @phba: pointer to lpfc hba data structure.
13558 * @sblist: pointer to scsi buffer list.
13559 * @count: number of scsi buffers on the list.
13560 *
13561 * This routine is invoked to post a block of @count scsi sgl pages from a
13562 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13563 * No Lock is held.
13564 *
13565 **/
13566int
13567lpfc_sli4_post_scsi_sgl_blk_ext(struct lpfc_hba *phba, struct list_head *sblist,
13568 int cnt)
13569{
13570 struct lpfc_scsi_buf *psb = NULL;
13571 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
13572 struct sgl_page_pairs *sgl_pg_pairs;
13573 void *viraddr;
13574 LPFC_MBOXQ_t *mbox;
13575 uint32_t reqlen, alloclen, pg_pairs;
13576 uint32_t mbox_tmo;
13577 uint16_t xri_start = 0, scsi_xri_start;
13578 uint16_t rsrc_range;
13579 int rc = 0, avail_cnt;
13580 uint32_t shdr_status, shdr_add_status;
13581 dma_addr_t pdma_phys_bpl1;
13582 union lpfc_sli4_cfg_shdr *shdr;
13583 struct lpfc_rsrc_blks *rsrc_blk;
13584 uint32_t xri_cnt = 0;
13585
13586 /* Calculate the total requested length of the dma memory */
13587 reqlen = cnt * sizeof(struct sgl_page_pairs) +
13588 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13589 if (reqlen > SLI4_PAGE_SIZE) {
13590 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
13591 "2932 Block sgl registration required DMA "
13592 "size (%d) great than a page\n", reqlen);
13593 return -ENOMEM;
13594 }
13595
13596 /*
13597 * The use of extents requires the driver to post the sgl headers
13598 * in multiple postings to meet the contiguous resource assignment.
13599 */
13600 psb = list_prepare_entry(psb, sblist, list);
13601 scsi_xri_start = phba->sli4_hba.scsi_xri_start;
13602 list_for_each_entry(rsrc_blk, &phba->sli4_hba.lpfc_xri_blk_list,
13603 list) {
13604 rsrc_range = rsrc_blk->rsrc_start + rsrc_blk->rsrc_size;
13605 if (rsrc_range < scsi_xri_start)
13606 continue;
13607 else if (rsrc_blk->rsrc_used >= rsrc_blk->rsrc_size)
13608 continue;
13609 else
13610 avail_cnt = rsrc_blk->rsrc_size - rsrc_blk->rsrc_used;
13611
13612 reqlen = (avail_cnt * sizeof(struct sgl_page_pairs)) +
13613 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
13614 /*
13615 * Allocate DMA memory and set up the non-embedded mailbox
13616 * command. The mbox is used to post an SGL page per loop
13617 * but the DMA memory has a use-once semantic so the mailbox
13618 * is used and freed per loop pass.
13619 */
13620 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13621 if (!mbox) {
13622 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13623 "2933 Failed to allocate mbox cmd "
13624 "memory\n");
13625 return -ENOMEM;
13626 }
13627 alloclen = lpfc_sli4_config(phba, mbox,
13628 LPFC_MBOX_SUBSYSTEM_FCOE,
13629 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
13630 reqlen,
13631 LPFC_SLI4_MBX_NEMBED);
13632 if (alloclen < reqlen) {
13633 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13634 "2934 Allocated DMA memory size (%d) "
13635 "is less than the requested DMA memory "
13636 "size (%d)\n", alloclen, reqlen);
13637 lpfc_sli4_mbox_cmd_free(phba, mbox);
13638 return -ENOMEM;
13639 }
13640
13641 /* Get the first SGE entry from the non-embedded DMA memory */
13642 viraddr = mbox->sge_array->addr[0];
13643
13644 /* Set up the SGL pages in the non-embedded DMA pages */
13645 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
13646 sgl_pg_pairs = &sgl->sgl_pg_pairs;
13647
13648 /* pg_pairs tracks posted SGEs per loop iteration. */
13649 pg_pairs = 0;
13650 list_for_each_entry_continue(psb, sblist, list) {
13651 /* Set up the sge entry */
13652 sgl_pg_pairs->sgl_pg0_addr_lo =
13653 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
13654 sgl_pg_pairs->sgl_pg0_addr_hi =
13655 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
13656 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
13657 pdma_phys_bpl1 = psb->dma_phys_bpl +
13658 SGL_PAGE_SIZE;
13659 else
13660 pdma_phys_bpl1 = 0;
13661 sgl_pg_pairs->sgl_pg1_addr_lo =
13662 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
13663 sgl_pg_pairs->sgl_pg1_addr_hi =
13664 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
13665 /* Keep the first xri for this extent. */
13666 if (pg_pairs == 0)
13667 xri_start = psb->cur_iocbq.sli4_xritag;
13668 sgl_pg_pairs++;
13669 pg_pairs++;
13670 xri_cnt++;
13671
13672 /*
13673 * Track two exit conditions - the loop has constructed
13674 * all of the caller's SGE pairs or all available
13675 * resource IDs in this extent are consumed.
13676 */
13677 if ((xri_cnt == cnt) || (pg_pairs >= avail_cnt))
13678 break;
13679 }
13680 rsrc_blk->rsrc_used += pg_pairs;
13681 bf_set(lpfc_post_sgl_pages_xri, sgl, xri_start);
13682 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
13683
13684 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13685 "3016 Post SCSI Extent SGL, start %d, cnt %d "
13686 "blk use %d\n",
13687 xri_start, pg_pairs, rsrc_blk->rsrc_used);
13688 /* Perform endian conversion if necessary */
13689 sgl->word0 = cpu_to_le32(sgl->word0);
13690 if (!phba->sli4_hba.intr_enable)
13691 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
13692 else {
James Smarta183a152011-10-10 21:32:43 -040013693 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart6d368e52011-05-24 11:44:12 -040013694 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
13695 }
13696 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
13697 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
13698 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13699 &shdr->response);
13700 if (rc != MBX_TIMEOUT)
13701 lpfc_sli4_mbox_cmd_free(phba, mbox);
13702 if (shdr_status || shdr_add_status || rc) {
13703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13704 "2935 POST_SGL_BLOCK mailbox command "
13705 "failed status x%x add_status x%x "
13706 "mbx status x%x\n",
13707 shdr_status, shdr_add_status, rc);
13708 return -ENXIO;
13709 }
13710
13711 /* Post only what is requested. */
13712 if (xri_cnt >= cnt)
13713 break;
13714 }
13715 return rc;
13716}
13717
13718/**
James Smart4f774512009-05-22 14:52:35 -040013719 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13720 * @phba: pointer to lpfc_hba struct that the frame was received on
13721 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13722 *
13723 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13724 * valid type of frame that the LPFC driver will handle. This function will
13725 * return a zero if the frame is a valid frame or a non zero value when the
13726 * frame does not pass the check.
13727 **/
13728static int
13729lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
13730{
Tomas Henzl474ffb72010-12-22 16:52:40 +010013731 /* make rctl_names static to save stack space */
13732 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
James Smart4f774512009-05-22 14:52:35 -040013733 char *type_names[] = FC_TYPE_NAMES_INIT;
13734 struct fc_vft_header *fc_vft_hdr;
James Smart546fc852011-03-11 16:06:29 -050013735 uint32_t *header = (uint32_t *) fc_hdr;
James Smart4f774512009-05-22 14:52:35 -040013736
13737 switch (fc_hdr->fh_r_ctl) {
13738 case FC_RCTL_DD_UNCAT: /* uncategorized information */
13739 case FC_RCTL_DD_SOL_DATA: /* solicited data */
13740 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
13741 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
13742 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
13743 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
13744 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
13745 case FC_RCTL_DD_CMD_STATUS: /* command status */
13746 case FC_RCTL_ELS_REQ: /* extended link services request */
13747 case FC_RCTL_ELS_REP: /* extended link services reply */
13748 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
13749 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
13750 case FC_RCTL_BA_NOP: /* basic link service NOP */
13751 case FC_RCTL_BA_ABTS: /* basic link service abort */
13752 case FC_RCTL_BA_RMC: /* remove connection */
13753 case FC_RCTL_BA_ACC: /* basic accept */
13754 case FC_RCTL_BA_RJT: /* basic reject */
13755 case FC_RCTL_BA_PRMT:
13756 case FC_RCTL_ACK_1: /* acknowledge_1 */
13757 case FC_RCTL_ACK_0: /* acknowledge_0 */
13758 case FC_RCTL_P_RJT: /* port reject */
13759 case FC_RCTL_F_RJT: /* fabric reject */
13760 case FC_RCTL_P_BSY: /* port busy */
13761 case FC_RCTL_F_BSY: /* fabric busy to data frame */
13762 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
13763 case FC_RCTL_LCR: /* link credit reset */
13764 case FC_RCTL_END: /* end */
13765 break;
13766 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
13767 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13768 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
13769 return lpfc_fc_frame_check(phba, fc_hdr);
13770 default:
13771 goto drop;
13772 }
13773 switch (fc_hdr->fh_type) {
13774 case FC_TYPE_BLS:
13775 case FC_TYPE_ELS:
13776 case FC_TYPE_FCP:
13777 case FC_TYPE_CT:
13778 break;
13779 case FC_TYPE_IP:
13780 case FC_TYPE_ILS:
13781 default:
13782 goto drop;
13783 }
James Smart546fc852011-03-11 16:06:29 -050013784
James Smart4f774512009-05-22 14:52:35 -040013785 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smart546fc852011-03-11 16:06:29 -050013786 "2538 Received frame rctl:%s type:%s "
13787 "Frame Data:%08x %08x %08x %08x %08x %08x\n",
James Smart4f774512009-05-22 14:52:35 -040013788 rctl_names[fc_hdr->fh_r_ctl],
James Smart546fc852011-03-11 16:06:29 -050013789 type_names[fc_hdr->fh_type],
13790 be32_to_cpu(header[0]), be32_to_cpu(header[1]),
13791 be32_to_cpu(header[2]), be32_to_cpu(header[3]),
13792 be32_to_cpu(header[4]), be32_to_cpu(header[5]));
James Smart4f774512009-05-22 14:52:35 -040013793 return 0;
13794drop:
13795 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
13796 "2539 Dropped frame rctl:%s type:%s\n",
13797 rctl_names[fc_hdr->fh_r_ctl],
13798 type_names[fc_hdr->fh_type]);
13799 return 1;
13800}
13801
13802/**
13803 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
13804 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13805 *
13806 * This function processes the FC header to retrieve the VFI from the VF
13807 * header, if one exists. This function will return the VFI if one exists
13808 * or 0 if no VSAN Header exists.
13809 **/
13810static uint32_t
13811lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
13812{
13813 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
13814
13815 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
13816 return 0;
13817 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
13818}
13819
13820/**
13821 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
13822 * @phba: Pointer to the HBA structure to search for the vport on
13823 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13824 * @fcfi: The FC Fabric ID that the frame came from
13825 *
13826 * This function searches the @phba for a vport that matches the content of the
13827 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
13828 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
13829 * returns the matching vport pointer or NULL if unable to match frame to a
13830 * vport.
13831 **/
13832static struct lpfc_vport *
13833lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
13834 uint16_t fcfi)
13835{
13836 struct lpfc_vport **vports;
13837 struct lpfc_vport *vport = NULL;
13838 int i;
13839 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
13840 fc_hdr->fh_d_id[1] << 8 |
13841 fc_hdr->fh_d_id[2]);
James Smartbf086112011-08-21 21:48:13 -040013842 if (did == Fabric_DID)
13843 return phba->pport;
James Smart4f774512009-05-22 14:52:35 -040013844 vports = lpfc_create_vport_work_array(phba);
13845 if (vports != NULL)
13846 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
13847 if (phba->fcf.fcfi == fcfi &&
13848 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
13849 vports[i]->fc_myDID == did) {
13850 vport = vports[i];
13851 break;
13852 }
13853 }
13854 lpfc_destroy_vport_work_array(phba, vports);
13855 return vport;
13856}
13857
13858/**
James Smart45ed1192009-10-02 15:17:02 -040013859 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
13860 * @vport: The vport to work on.
13861 *
13862 * This function updates the receive sequence time stamp for this vport. The
13863 * receive sequence time stamp indicates the time that the last frame of the
13864 * the sequence that has been idle for the longest amount of time was received.
13865 * the driver uses this time stamp to indicate if any received sequences have
13866 * timed out.
13867 **/
13868void
13869lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
13870{
13871 struct lpfc_dmabuf *h_buf;
13872 struct hbq_dmabuf *dmabuf = NULL;
13873
13874 /* get the oldest sequence on the rcv list */
13875 h_buf = list_get_first(&vport->rcv_buffer_list,
13876 struct lpfc_dmabuf, list);
13877 if (!h_buf)
13878 return;
13879 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13880 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
13881}
13882
13883/**
13884 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
13885 * @vport: The vport that the received sequences were sent to.
13886 *
13887 * This function cleans up all outstanding received sequences. This is called
13888 * by the driver when a link event or user action invalidates all the received
13889 * sequences.
13890 **/
13891void
13892lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
13893{
13894 struct lpfc_dmabuf *h_buf, *hnext;
13895 struct lpfc_dmabuf *d_buf, *dnext;
13896 struct hbq_dmabuf *dmabuf = NULL;
13897
13898 /* start with the oldest sequence on the rcv list */
13899 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13900 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13901 list_del_init(&dmabuf->hbuf.list);
13902 list_for_each_entry_safe(d_buf, dnext,
13903 &dmabuf->dbuf.list, list) {
13904 list_del_init(&d_buf->list);
13905 lpfc_in_buf_free(vport->phba, d_buf);
13906 }
13907 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13908 }
13909}
13910
13911/**
13912 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
13913 * @vport: The vport that the received sequences were sent to.
13914 *
13915 * This function determines whether any received sequences have timed out by
13916 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
13917 * indicates that there is at least one timed out sequence this routine will
13918 * go through the received sequences one at a time from most inactive to most
13919 * active to determine which ones need to be cleaned up. Once it has determined
13920 * that a sequence needs to be cleaned up it will simply free up the resources
13921 * without sending an abort.
13922 **/
13923void
13924lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
13925{
13926 struct lpfc_dmabuf *h_buf, *hnext;
13927 struct lpfc_dmabuf *d_buf, *dnext;
13928 struct hbq_dmabuf *dmabuf = NULL;
13929 unsigned long timeout;
13930 int abort_count = 0;
13931
13932 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13933 vport->rcv_buffer_time_stamp);
13934 if (list_empty(&vport->rcv_buffer_list) ||
13935 time_before(jiffies, timeout))
13936 return;
13937 /* start with the oldest sequence on the rcv list */
13938 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
13939 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13940 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
13941 dmabuf->time_stamp);
13942 if (time_before(jiffies, timeout))
13943 break;
13944 abort_count++;
13945 list_del_init(&dmabuf->hbuf.list);
13946 list_for_each_entry_safe(d_buf, dnext,
13947 &dmabuf->dbuf.list, list) {
13948 list_del_init(&d_buf->list);
13949 lpfc_in_buf_free(vport->phba, d_buf);
13950 }
13951 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
13952 }
13953 if (abort_count)
13954 lpfc_update_rcv_time_stamp(vport);
13955}
13956
13957/**
James Smart4f774512009-05-22 14:52:35 -040013958 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
13959 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
13960 *
13961 * This function searches through the existing incomplete sequences that have
13962 * been sent to this @vport. If the frame matches one of the incomplete
13963 * sequences then the dbuf in the @dmabuf is added to the list of frames that
13964 * make up that sequence. If no sequence is found that matches this frame then
13965 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
13966 * This function returns a pointer to the first dmabuf in the sequence list that
13967 * the frame was linked to.
13968 **/
13969static struct hbq_dmabuf *
13970lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
13971{
13972 struct fc_frame_header *new_hdr;
13973 struct fc_frame_header *temp_hdr;
13974 struct lpfc_dmabuf *d_buf;
13975 struct lpfc_dmabuf *h_buf;
13976 struct hbq_dmabuf *seq_dmabuf = NULL;
13977 struct hbq_dmabuf *temp_dmabuf = NULL;
13978
James Smart4d9ab992009-10-02 15:16:39 -040013979 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040013980 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040013981 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
13982 /* Use the hdr_buf to find the sequence that this frame belongs to */
13983 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
13984 temp_hdr = (struct fc_frame_header *)h_buf->virt;
13985 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
13986 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
13987 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
13988 continue;
13989 /* found a pending sequence that matches this frame */
13990 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
13991 break;
13992 }
13993 if (!seq_dmabuf) {
13994 /*
13995 * This indicates first frame received for this sequence.
13996 * Queue the buffer on the vport's rcv_buffer_list.
13997 */
13998 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040013999 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040014000 return dmabuf;
14001 }
14002 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050014003 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
14004 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040014005 list_del_init(&seq_dmabuf->hbuf.list);
14006 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
14007 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040014008 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040014009 return dmabuf;
14010 }
James Smart45ed1192009-10-02 15:17:02 -040014011 /* move this sequence to the tail to indicate a young sequence */
14012 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
14013 seq_dmabuf->time_stamp = jiffies;
14014 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050014015 if (list_empty(&seq_dmabuf->dbuf.list)) {
14016 temp_hdr = dmabuf->hbuf.virt;
14017 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
14018 return seq_dmabuf;
14019 }
James Smart4f774512009-05-22 14:52:35 -040014020 /* find the correct place in the sequence to insert this frame */
14021 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
14022 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14023 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
14024 /*
14025 * If the frame's sequence count is greater than the frame on
14026 * the list then insert the frame right after this frame
14027 */
James Smarteeead812009-12-21 17:01:23 -050014028 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
14029 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040014030 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
14031 return seq_dmabuf;
14032 }
14033 }
14034 return NULL;
14035}
14036
14037/**
James Smart6669f9b2009-10-02 15:16:45 -040014038 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14039 * @vport: pointer to a vitural port
14040 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14041 *
14042 * This function tries to abort from the partially assembed sequence, described
14043 * by the information from basic abbort @dmabuf. It checks to see whether such
14044 * partially assembled sequence held by the driver. If so, it shall free up all
14045 * the frames from the partially assembled sequence.
14046 *
14047 * Return
14048 * true -- if there is matching partially assembled sequence present and all
14049 * the frames freed with the sequence;
14050 * false -- if there is no matching partially assembled sequence present so
14051 * nothing got aborted in the lower layer driver
14052 **/
14053static bool
14054lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
14055 struct hbq_dmabuf *dmabuf)
14056{
14057 struct fc_frame_header *new_hdr;
14058 struct fc_frame_header *temp_hdr;
14059 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
14060 struct hbq_dmabuf *seq_dmabuf = NULL;
14061
14062 /* Use the hdr_buf to find the sequence that matches this frame */
14063 INIT_LIST_HEAD(&dmabuf->dbuf.list);
14064 INIT_LIST_HEAD(&dmabuf->hbuf.list);
14065 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14066 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
14067 temp_hdr = (struct fc_frame_header *)h_buf->virt;
14068 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
14069 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
14070 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
14071 continue;
14072 /* found a pending sequence that matches this frame */
14073 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
14074 break;
14075 }
14076
14077 /* Free up all the frames from the partially assembled sequence */
14078 if (seq_dmabuf) {
14079 list_for_each_entry_safe(d_buf, n_buf,
14080 &seq_dmabuf->dbuf.list, list) {
14081 list_del_init(&d_buf->list);
14082 lpfc_in_buf_free(vport->phba, d_buf);
14083 }
14084 return true;
14085 }
14086 return false;
14087}
14088
14089/**
James Smart546fc852011-03-11 16:06:29 -050014090 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
James Smart6669f9b2009-10-02 15:16:45 -040014091 * @phba: Pointer to HBA context object.
14092 * @cmd_iocbq: pointer to the command iocbq structure.
14093 * @rsp_iocbq: pointer to the response iocbq structure.
14094 *
James Smart546fc852011-03-11 16:06:29 -050014095 * This function handles the sequence abort response iocb command complete
James Smart6669f9b2009-10-02 15:16:45 -040014096 * event. It properly releases the memory allocated to the sequence abort
14097 * accept iocb.
14098 **/
14099static void
James Smart546fc852011-03-11 16:06:29 -050014100lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba *phba,
James Smart6669f9b2009-10-02 15:16:45 -040014101 struct lpfc_iocbq *cmd_iocbq,
14102 struct lpfc_iocbq *rsp_iocbq)
14103{
14104 if (cmd_iocbq)
14105 lpfc_sli_release_iocbq(phba, cmd_iocbq);
James Smart6b5151f2012-01-18 16:24:06 -050014106
14107 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14108 if (rsp_iocbq && rsp_iocbq->iocb.ulpStatus)
14109 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14110 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14111 rsp_iocbq->iocb.ulpStatus,
14112 rsp_iocbq->iocb.un.ulpWord[4]);
James Smart6669f9b2009-10-02 15:16:45 -040014113}
14114
14115/**
James Smart6d368e52011-05-24 11:44:12 -040014116 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14117 * @phba: Pointer to HBA context object.
14118 * @xri: xri id in transaction.
14119 *
14120 * This function validates the xri maps to the known range of XRIs allocated an
14121 * used by the driver.
14122 **/
James Smart7851fe22011-07-22 18:36:52 -040014123uint16_t
James Smart6d368e52011-05-24 11:44:12 -040014124lpfc_sli4_xri_inrange(struct lpfc_hba *phba,
14125 uint16_t xri)
14126{
14127 int i;
14128
14129 for (i = 0; i < phba->sli4_hba.max_cfg_param.max_xri; i++) {
14130 if (xri == phba->sli4_hba.xri_ids[i])
14131 return i;
14132 }
14133 return NO_XRI;
14134}
14135
14136
14137/**
James Smart546fc852011-03-11 16:06:29 -050014138 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040014139 * @phba: Pointer to HBA context object.
14140 * @fc_hdr: pointer to a FC frame header.
14141 *
James Smart546fc852011-03-11 16:06:29 -050014142 * This function sends a basic response to a previous unsol sequence abort
James Smart6669f9b2009-10-02 15:16:45 -040014143 * event after aborting the sequence handling.
14144 **/
14145static void
James Smart546fc852011-03-11 16:06:29 -050014146lpfc_sli4_seq_abort_rsp(struct lpfc_hba *phba,
James Smart6669f9b2009-10-02 15:16:45 -040014147 struct fc_frame_header *fc_hdr)
14148{
14149 struct lpfc_iocbq *ctiocb = NULL;
14150 struct lpfc_nodelist *ndlp;
James Smart5ffc2662009-11-18 15:39:44 -050014151 uint16_t oxid, rxid;
14152 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040014153 IOCB_t *icmd;
James Smart546fc852011-03-11 16:06:29 -050014154 int rc;
James Smart6669f9b2009-10-02 15:16:45 -040014155
14156 if (!lpfc_is_link_up(phba))
14157 return;
14158
14159 sid = sli4_sid_from_fc_hdr(fc_hdr);
14160 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050014161 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040014162
14163 ndlp = lpfc_findnode_did(phba->pport, sid);
14164 if (!ndlp) {
14165 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
14166 "1268 Find ndlp returned NULL for oxid:x%x "
14167 "SID:x%x\n", oxid, sid);
14168 return;
14169 }
James Smart6d368e52011-05-24 11:44:12 -040014170 if (lpfc_sli4_xri_inrange(phba, rxid))
James Smart19ca7602010-11-20 23:11:55 -050014171 lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0);
James Smart6669f9b2009-10-02 15:16:45 -040014172
James Smart546fc852011-03-11 16:06:29 -050014173 /* Allocate buffer for rsp iocb */
James Smart6669f9b2009-10-02 15:16:45 -040014174 ctiocb = lpfc_sli_get_iocbq(phba);
14175 if (!ctiocb)
14176 return;
14177
James Smart5ffc2662009-11-18 15:39:44 -050014178 /* Extract the F_CTL field from FC_HDR */
14179 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
14180
James Smart6669f9b2009-10-02 15:16:45 -040014181 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040014182 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050014183 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040014184 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
14185 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
14186 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
14187
14188 /* Fill in the rest of iocb fields */
14189 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
14190 icmd->ulpBdeCount = 0;
14191 icmd->ulpLe = 1;
14192 icmd->ulpClass = CLASS3;
James Smart6d368e52011-05-24 11:44:12 -040014193 icmd->ulpContext = phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
James Smartbe858b62010-12-15 17:57:20 -050014194 ctiocb->context1 = ndlp;
James Smart6669f9b2009-10-02 15:16:45 -040014195
James Smart6669f9b2009-10-02 15:16:45 -040014196 ctiocb->iocb_cmpl = NULL;
14197 ctiocb->vport = phba->pport;
James Smart546fc852011-03-11 16:06:29 -050014198 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_rsp_cmpl;
James Smart6d368e52011-05-24 11:44:12 -040014199 ctiocb->sli4_lxritag = NO_XRI;
James Smart546fc852011-03-11 16:06:29 -050014200 ctiocb->sli4_xritag = NO_XRI;
14201
14202 /* If the oxid maps to the FCP XRI range or if it is out of range,
14203 * send a BLS_RJT. The driver no longer has that exchange.
14204 * Override the IOCB for a BA_RJT.
14205 */
14206 if (oxid > (phba->sli4_hba.max_cfg_param.max_xri +
14207 phba->sli4_hba.max_cfg_param.xri_base) ||
14208 oxid > (lpfc_sli4_get_els_iocb_cnt(phba) +
14209 phba->sli4_hba.max_cfg_param.xri_base)) {
14210 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_RJT;
14211 bf_set(lpfc_vndr_code, &icmd->un.bls_rsp, 0);
14212 bf_set(lpfc_rsn_expln, &icmd->un.bls_rsp, FC_BA_RJT_INV_XID);
14213 bf_set(lpfc_rsn_code, &icmd->un.bls_rsp, FC_BA_RJT_UNABLE);
14214 }
James Smart6669f9b2009-10-02 15:16:45 -040014215
James Smart5ffc2662009-11-18 15:39:44 -050014216 if (fctl & FC_FC_EX_CTX) {
14217 /* ABTS sent by responder to CT exchange, construction
14218 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14219 * field and RX_ID from ABTS for RX_ID field.
14220 */
James Smart546fc852011-03-11 16:06:29 -050014221 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_RSP);
James Smart5ffc2662009-11-18 15:39:44 -050014222 } else {
14223 /* ABTS sent by initiator to CT exchange, construction
14224 * of BA_ACC will need to allocate a new XRI as for the
James Smartf09c3ac2012-03-01 22:33:29 -050014225 * XRI_TAG field.
James Smart5ffc2662009-11-18 15:39:44 -050014226 */
James Smart546fc852011-03-11 16:06:29 -050014227 bf_set(lpfc_abts_orig, &icmd->un.bls_rsp, LPFC_ABTS_UNSOL_INT);
James Smart5ffc2662009-11-18 15:39:44 -050014228 }
James Smartf09c3ac2012-03-01 22:33:29 -050014229 bf_set(lpfc_abts_rxid, &icmd->un.bls_rsp, rxid);
James Smart546fc852011-03-11 16:06:29 -050014230 bf_set(lpfc_abts_oxid, &icmd->un.bls_rsp, oxid);
James Smart5ffc2662009-11-18 15:39:44 -050014231
James Smart546fc852011-03-11 16:06:29 -050014232 /* Xmit CT abts response on exchange <xid> */
James Smart6669f9b2009-10-02 15:16:45 -040014233 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smart546fc852011-03-11 16:06:29 -050014234 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14235 icmd->un.xseq64.w5.hcsw.Rctl, oxid, phba->link_state);
14236
14237 rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
14238 if (rc == IOCB_ERROR) {
14239 lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
14240 "2925 Failed to issue CT ABTS RSP x%x on "
14241 "xri x%x, Data x%x\n",
14242 icmd->un.xseq64.w5.hcsw.Rctl, oxid,
14243 phba->link_state);
14244 lpfc_sli_release_iocbq(phba, ctiocb);
14245 }
James Smart6669f9b2009-10-02 15:16:45 -040014246}
14247
14248/**
14249 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14250 * @vport: Pointer to the vport on which this sequence was received
14251 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14252 *
14253 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14254 * receive sequence is only partially assembed by the driver, it shall abort
14255 * the partially assembled frames for the sequence. Otherwise, if the
14256 * unsolicited receive sequence has been completely assembled and passed to
14257 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14258 * unsolicited sequence has been aborted. After that, it will issue a basic
14259 * accept to accept the abort.
14260 **/
14261void
14262lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
14263 struct hbq_dmabuf *dmabuf)
14264{
14265 struct lpfc_hba *phba = vport->phba;
14266 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050014267 uint32_t fctl;
James Smart6669f9b2009-10-02 15:16:45 -040014268 bool abts_par;
14269
James Smart6669f9b2009-10-02 15:16:45 -040014270 /* Make a copy of fc_hdr before the dmabuf being released */
14271 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050014272 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040014273
James Smart5ffc2662009-11-18 15:39:44 -050014274 if (fctl & FC_FC_EX_CTX) {
14275 /*
14276 * ABTS sent by responder to exchange, just free the buffer
14277 */
James Smart6669f9b2009-10-02 15:16:45 -040014278 lpfc_in_buf_free(phba, &dmabuf->dbuf);
James Smart5ffc2662009-11-18 15:39:44 -050014279 } else {
14280 /*
14281 * ABTS sent by initiator to exchange, need to do cleanup
14282 */
14283 /* Try to abort partially assembled seq */
14284 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
14285
14286 /* Send abort to ULP if partially seq abort failed */
14287 if (abts_par == false)
14288 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
14289 else
14290 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14291 }
James Smart6669f9b2009-10-02 15:16:45 -040014292 /* Send basic accept (BA_ACC) to the abort requester */
James Smart546fc852011-03-11 16:06:29 -050014293 lpfc_sli4_seq_abort_rsp(phba, &fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040014294}
14295
14296/**
James Smart4f774512009-05-22 14:52:35 -040014297 * lpfc_seq_complete - Indicates if a sequence is complete
14298 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14299 *
14300 * This function checks the sequence, starting with the frame described by
14301 * @dmabuf, to see if all the frames associated with this sequence are present.
14302 * the frames associated with this sequence are linked to the @dmabuf using the
14303 * dbuf list. This function looks for two major things. 1) That the first frame
14304 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14305 * set. 3) That there are no holes in the sequence count. The function will
14306 * return 1 when the sequence is complete, otherwise it will return 0.
14307 **/
14308static int
14309lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
14310{
14311 struct fc_frame_header *hdr;
14312 struct lpfc_dmabuf *d_buf;
14313 struct hbq_dmabuf *seq_dmabuf;
14314 uint32_t fctl;
14315 int seq_count = 0;
14316
14317 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14318 /* make sure first fame of sequence has a sequence count of zero */
14319 if (hdr->fh_seq_cnt != seq_count)
14320 return 0;
14321 fctl = (hdr->fh_f_ctl[0] << 16 |
14322 hdr->fh_f_ctl[1] << 8 |
14323 hdr->fh_f_ctl[2]);
14324 /* If last frame of sequence we can return success. */
14325 if (fctl & FC_FC_END_SEQ)
14326 return 1;
14327 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
14328 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14329 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14330 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050014331 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040014332 return 0;
14333 fctl = (hdr->fh_f_ctl[0] << 16 |
14334 hdr->fh_f_ctl[1] << 8 |
14335 hdr->fh_f_ctl[2]);
14336 /* If last frame of sequence we can return success. */
14337 if (fctl & FC_FC_END_SEQ)
14338 return 1;
14339 }
14340 return 0;
14341}
14342
14343/**
14344 * lpfc_prep_seq - Prep sequence for ULP processing
14345 * @vport: Pointer to the vport on which this sequence was received
14346 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14347 *
14348 * This function takes a sequence, described by a list of frames, and creates
14349 * a list of iocbq structures to describe the sequence. This iocbq list will be
14350 * used to issue to the generic unsolicited sequence handler. This routine
14351 * returns a pointer to the first iocbq in the list. If the function is unable
14352 * to allocate an iocbq then it throw out the received frames that were not
14353 * able to be described and return a pointer to the first iocbq. If unable to
14354 * allocate any iocbqs (including the first) this function will return NULL.
14355 **/
14356static struct lpfc_iocbq *
14357lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
14358{
James Smart7851fe22011-07-22 18:36:52 -040014359 struct hbq_dmabuf *hbq_buf;
James Smart4f774512009-05-22 14:52:35 -040014360 struct lpfc_dmabuf *d_buf, *n_buf;
14361 struct lpfc_iocbq *first_iocbq, *iocbq;
14362 struct fc_frame_header *fc_hdr;
14363 uint32_t sid;
James Smart7851fe22011-07-22 18:36:52 -040014364 uint32_t len, tot_len;
James Smarteeead812009-12-21 17:01:23 -050014365 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040014366
14367 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14368 /* remove from receive buffer list */
14369 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040014370 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040014371 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040014372 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart7851fe22011-07-22 18:36:52 -040014373 tot_len = 0;
James Smart4f774512009-05-22 14:52:35 -040014374 /* Get an iocbq struct to fill in. */
14375 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
14376 if (first_iocbq) {
14377 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040014378 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040014379 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
14380 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
James Smart7851fe22011-07-22 18:36:52 -040014381 first_iocbq->iocb.ulpContext = NO_XRI;
14382 first_iocbq->iocb.unsli3.rcvsli3.ox_id =
14383 be16_to_cpu(fc_hdr->fh_ox_id);
14384 /* iocbq is prepped for internal consumption. Physical vpi. */
14385 first_iocbq->iocb.unsli3.rcvsli3.vpi =
14386 vport->phba->vpi_ids[vport->vpi];
James Smart4f774512009-05-22 14:52:35 -040014387 /* put the first buffer into the first IOCBq */
14388 first_iocbq->context2 = &seq_dmabuf->dbuf;
14389 first_iocbq->context3 = NULL;
14390 first_iocbq->iocb.ulpBdeCount = 1;
14391 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14392 LPFC_DATA_BUF_SIZE;
14393 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart7851fe22011-07-22 18:36:52 -040014394 tot_len = bf_get(lpfc_rcqe_length,
James Smart4d9ab992009-10-02 15:16:39 -040014395 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart7851fe22011-07-22 18:36:52 -040014396 first_iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
James Smart4f774512009-05-22 14:52:35 -040014397 }
14398 iocbq = first_iocbq;
14399 /*
14400 * Each IOCBq can have two Buffers assigned, so go through the list
14401 * of buffers for this sequence and save two buffers in each IOCBq
14402 */
14403 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
14404 if (!iocbq) {
14405 lpfc_in_buf_free(vport->phba, d_buf);
14406 continue;
14407 }
14408 if (!iocbq->context3) {
14409 iocbq->context3 = d_buf;
14410 iocbq->iocb.ulpBdeCount++;
James Smarteeead812009-12-21 17:01:23 -050014411 pbde = (struct ulp_bde64 *)
14412 &iocbq->iocb.unsli3.sli3Words[4];
14413 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
James Smart7851fe22011-07-22 18:36:52 -040014414
14415 /* We need to get the size out of the right CQE */
14416 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14417 len = bf_get(lpfc_rcqe_length,
14418 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14419 iocbq->iocb.unsli3.rcvsli3.acc_len += len;
14420 tot_len += len;
James Smart4f774512009-05-22 14:52:35 -040014421 } else {
14422 iocbq = lpfc_sli_get_iocbq(vport->phba);
14423 if (!iocbq) {
14424 if (first_iocbq) {
14425 first_iocbq->iocb.ulpStatus =
14426 IOSTAT_FCP_RSP_ERROR;
14427 first_iocbq->iocb.un.ulpWord[4] =
14428 IOERR_NO_RESOURCES;
14429 }
14430 lpfc_in_buf_free(vport->phba, d_buf);
14431 continue;
14432 }
14433 iocbq->context2 = d_buf;
14434 iocbq->context3 = NULL;
14435 iocbq->iocb.ulpBdeCount = 1;
14436 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
14437 LPFC_DATA_BUF_SIZE;
James Smart7851fe22011-07-22 18:36:52 -040014438
14439 /* We need to get the size out of the right CQE */
14440 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
14441 len = bf_get(lpfc_rcqe_length,
14442 &hbq_buf->cq_event.cqe.rcqe_cmpl);
14443 tot_len += len;
14444 iocbq->iocb.unsli3.rcvsli3.acc_len = tot_len;
14445
James Smart4f774512009-05-22 14:52:35 -040014446 iocbq->iocb.un.rcvels.remoteID = sid;
14447 list_add_tail(&iocbq->list, &first_iocbq->list);
14448 }
14449 }
14450 return first_iocbq;
14451}
14452
James Smart6669f9b2009-10-02 15:16:45 -040014453static void
14454lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
14455 struct hbq_dmabuf *seq_dmabuf)
14456{
14457 struct fc_frame_header *fc_hdr;
14458 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
14459 struct lpfc_hba *phba = vport->phba;
14460
14461 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
14462 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
14463 if (!iocbq) {
14464 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14465 "2707 Ring %d handler: Failed to allocate "
14466 "iocb Rctl x%x Type x%x received\n",
14467 LPFC_ELS_RING,
14468 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14469 return;
14470 }
14471 if (!lpfc_complete_unsol_iocb(phba,
14472 &phba->sli.ring[LPFC_ELS_RING],
14473 iocbq, fc_hdr->fh_r_ctl,
14474 fc_hdr->fh_type))
James Smart6d368e52011-05-24 11:44:12 -040014475 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart6669f9b2009-10-02 15:16:45 -040014476 "2540 Ring %d handler: unexpected Rctl "
14477 "x%x Type x%x received\n",
14478 LPFC_ELS_RING,
14479 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
14480
14481 /* Free iocb created in lpfc_prep_seq */
14482 list_for_each_entry_safe(curr_iocb, next_iocb,
14483 &iocbq->list, list) {
14484 list_del_init(&curr_iocb->list);
14485 lpfc_sli_release_iocbq(phba, curr_iocb);
14486 }
14487 lpfc_sli_release_iocbq(phba, iocbq);
14488}
14489
James Smart4f774512009-05-22 14:52:35 -040014490/**
14491 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14492 * @phba: Pointer to HBA context object.
14493 *
14494 * This function is called with no lock held. This function processes all
14495 * the received buffers and gives it to upper layers when a received buffer
14496 * indicates that it is the final frame in the sequence. The interrupt
14497 * service routine processes received buffers at interrupt contexts and adds
14498 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14499 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14500 * appropriate receive function when the final frame in a sequence is received.
14501 **/
James Smart4d9ab992009-10-02 15:16:39 -040014502void
14503lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
14504 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040014505{
James Smart4d9ab992009-10-02 15:16:39 -040014506 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040014507 struct fc_frame_header *fc_hdr;
14508 struct lpfc_vport *vport;
14509 uint32_t fcfi;
James Smart4f774512009-05-22 14:52:35 -040014510
James Smart4f774512009-05-22 14:52:35 -040014511 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040014512 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
14513 /* check to see if this a valid type of frame */
14514 if (lpfc_fc_frame_check(phba, fc_hdr)) {
14515 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14516 return;
14517 }
James Smart7851fe22011-07-22 18:36:52 -040014518 if ((bf_get(lpfc_cqe_code,
14519 &dmabuf->cq_event.cqe.rcqe_cmpl) == CQE_CODE_RECEIVE_V1))
14520 fcfi = bf_get(lpfc_rcqe_fcf_id_v1,
14521 &dmabuf->cq_event.cqe.rcqe_cmpl);
14522 else
14523 fcfi = bf_get(lpfc_rcqe_fcf_id,
14524 &dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4d9ab992009-10-02 15:16:39 -040014525 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
James Smartc8685952009-11-18 15:39:16 -050014526 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
James Smart4d9ab992009-10-02 15:16:39 -040014527 /* throw out the frame */
14528 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14529 return;
14530 }
James Smart6669f9b2009-10-02 15:16:45 -040014531 /* Handle the basic abort sequence (BA_ABTS) event */
14532 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
14533 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
14534 return;
14535 }
14536
James Smart4d9ab992009-10-02 15:16:39 -040014537 /* Link this frame */
14538 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
14539 if (!seq_dmabuf) {
14540 /* unable to add frame to vport - throw it out */
14541 lpfc_in_buf_free(phba, &dmabuf->dbuf);
14542 return;
14543 }
14544 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050014545 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040014546 return;
James Smartdef9c7a2009-12-21 17:02:28 -050014547
James Smart6669f9b2009-10-02 15:16:45 -040014548 /* Send the complete sequence to the upper layer protocol */
14549 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040014550}
James Smart6fb120a2009-05-22 14:52:59 -040014551
14552/**
14553 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14554 * @phba: pointer to lpfc hba data structure.
14555 *
14556 * This routine is invoked to post rpi header templates to the
14557 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040014558 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14559 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040014560 *
14561 * This routine does not require any locks. It's usage is expected
14562 * to be driver load or reset recovery when the driver is
14563 * sequential.
14564 *
14565 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020014566 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040014567 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040014568 * When this error occurs, the driver is not guaranteed
14569 * to have any rpi regions posted to the device and
14570 * must either attempt to repost the regions or take a
14571 * fatal error.
14572 **/
14573int
14574lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
14575{
14576 struct lpfc_rpi_hdr *rpi_page;
14577 uint32_t rc = 0;
James Smart6d368e52011-05-24 11:44:12 -040014578 uint16_t lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040014579
James Smart6d368e52011-05-24 11:44:12 -040014580 /* SLI4 ports that support extents do not require RPI headers. */
14581 if (!phba->sli4_hba.rpi_hdrs_in_use)
14582 goto exit;
14583 if (phba->sli4_hba.extents_in_use)
14584 return -EIO;
14585
James Smart6fb120a2009-05-22 14:52:59 -040014586 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
James Smart6d368e52011-05-24 11:44:12 -040014587 /*
14588 * Assign the rpi headers a physical rpi only if the driver
14589 * has not initialized those resources. A port reset only
14590 * needs the headers posted.
14591 */
14592 if (bf_get(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags) !=
14593 LPFC_RPI_RSRC_RDY)
14594 rpi_page->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
14595
James Smart6fb120a2009-05-22 14:52:59 -040014596 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
14597 if (rc != MBX_SUCCESS) {
14598 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14599 "2008 Error %d posting all rpi "
14600 "headers\n", rc);
14601 rc = -EIO;
14602 break;
14603 }
14604 }
14605
James Smart6d368e52011-05-24 11:44:12 -040014606 exit:
14607 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags,
14608 LPFC_RPI_RSRC_RDY);
James Smart6fb120a2009-05-22 14:52:59 -040014609 return rc;
14610}
14611
14612/**
14613 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14614 * @phba: pointer to lpfc hba data structure.
14615 * @rpi_page: pointer to the rpi memory region.
14616 *
14617 * This routine is invoked to post a single rpi header to the
14618 * HBA consistent with the SLI-4 interface spec. This memory region
14619 * maps up to 64 rpi context regions.
14620 *
14621 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020014622 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040014623 * -ENOMEM - No available memory
14624 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040014625 **/
14626int
14627lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
14628{
14629 LPFC_MBOXQ_t *mboxq;
14630 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
14631 uint32_t rc = 0;
James Smart6fb120a2009-05-22 14:52:59 -040014632 uint32_t shdr_status, shdr_add_status;
14633 union lpfc_sli4_cfg_shdr *shdr;
14634
James Smart6d368e52011-05-24 11:44:12 -040014635 /* SLI4 ports that support extents do not require RPI headers. */
14636 if (!phba->sli4_hba.rpi_hdrs_in_use)
14637 return rc;
14638 if (phba->sli4_hba.extents_in_use)
14639 return -EIO;
14640
James Smart6fb120a2009-05-22 14:52:59 -040014641 /* The port is notified of the header region via a mailbox command. */
14642 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14643 if (!mboxq) {
14644 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14645 "2001 Unable to allocate memory for issuing "
14646 "SLI_CONFIG_SPECIAL mailbox command\n");
14647 return -ENOMEM;
14648 }
14649
14650 /* Post all rpi memory regions to the port. */
14651 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
James Smart6fb120a2009-05-22 14:52:59 -040014652 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14653 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
14654 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
James Smartfedd3b72011-02-16 12:39:24 -050014655 sizeof(struct lpfc_sli4_cfg_mhdr),
14656 LPFC_SLI4_MBX_EMBED);
James Smart6d368e52011-05-24 11:44:12 -040014657
14658
14659 /* Post the physical rpi to the port for this rpi header. */
James Smart6fb120a2009-05-22 14:52:59 -040014660 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
14661 rpi_page->start_rpi);
James Smart6d368e52011-05-24 11:44:12 -040014662 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
14663 hdr_tmpl, rpi_page->page_count);
14664
James Smart6fb120a2009-05-22 14:52:59 -040014665 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
14666 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040014667 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040014668 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
14669 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14670 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14671 if (rc != MBX_TIMEOUT)
14672 mempool_free(mboxq, phba->mbox_mem_pool);
14673 if (shdr_status || shdr_add_status || rc) {
14674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14675 "2514 POST_RPI_HDR mailbox failed with "
14676 "status x%x add_status x%x, mbx status x%x\n",
14677 shdr_status, shdr_add_status, rc);
14678 rc = -ENXIO;
14679 }
14680 return rc;
14681}
14682
14683/**
14684 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14685 * @phba: pointer to lpfc hba data structure.
14686 *
14687 * This routine is invoked to post rpi header templates to the
14688 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040014689 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14690 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040014691 *
14692 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020014693 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040014694 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14695 **/
14696int
14697lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
14698{
James Smart6d368e52011-05-24 11:44:12 -040014699 unsigned long rpi;
14700 uint16_t max_rpi, rpi_limit;
14701 uint16_t rpi_remaining, lrpi = 0;
James Smart6fb120a2009-05-22 14:52:59 -040014702 struct lpfc_rpi_hdr *rpi_hdr;
14703
14704 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
James Smart6fb120a2009-05-22 14:52:59 -040014705 rpi_limit = phba->sli4_hba.next_rpi;
14706
14707 /*
James Smart6d368e52011-05-24 11:44:12 -040014708 * Fetch the next logical rpi. Because this index is logical,
14709 * the driver starts at 0 each time.
James Smart6fb120a2009-05-22 14:52:59 -040014710 */
14711 spin_lock_irq(&phba->hbalock);
James Smart6d368e52011-05-24 11:44:12 -040014712 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
14713 if (rpi >= rpi_limit)
James Smart6fb120a2009-05-22 14:52:59 -040014714 rpi = LPFC_RPI_ALLOC_ERROR;
14715 else {
14716 set_bit(rpi, phba->sli4_hba.rpi_bmask);
14717 phba->sli4_hba.max_cfg_param.rpi_used++;
14718 phba->sli4_hba.rpi_count++;
14719 }
14720
14721 /*
14722 * Don't try to allocate more rpi header regions if the device limit
James Smart6d368e52011-05-24 11:44:12 -040014723 * has been exhausted.
James Smart6fb120a2009-05-22 14:52:59 -040014724 */
14725 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
14726 (phba->sli4_hba.rpi_count >= max_rpi)) {
14727 spin_unlock_irq(&phba->hbalock);
14728 return rpi;
14729 }
14730
14731 /*
James Smart6d368e52011-05-24 11:44:12 -040014732 * RPI header postings are not required for SLI4 ports capable of
14733 * extents.
14734 */
14735 if (!phba->sli4_hba.rpi_hdrs_in_use) {
14736 spin_unlock_irq(&phba->hbalock);
14737 return rpi;
14738 }
14739
14740 /*
James Smart6fb120a2009-05-22 14:52:59 -040014741 * If the driver is running low on rpi resources, allocate another
14742 * page now. Note that the next_rpi value is used because
14743 * it represents how many are actually in use whereas max_rpi notes
14744 * how many are supported max by the device.
14745 */
James Smart6d368e52011-05-24 11:44:12 -040014746 rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
James Smart6fb120a2009-05-22 14:52:59 -040014747 spin_unlock_irq(&phba->hbalock);
14748 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
14749 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
14750 if (!rpi_hdr) {
14751 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14752 "2002 Error Could not grow rpi "
14753 "count\n");
14754 } else {
James Smart6d368e52011-05-24 11:44:12 -040014755 lrpi = rpi_hdr->start_rpi;
14756 rpi_hdr->start_rpi = phba->sli4_hba.rpi_ids[lrpi];
James Smart6fb120a2009-05-22 14:52:59 -040014757 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
14758 }
14759 }
14760
14761 return rpi;
14762}
14763
14764/**
14765 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14766 * @phba: pointer to lpfc hba data structure.
14767 *
14768 * This routine is invoked to release an rpi to the pool of
14769 * available rpis maintained by the driver.
14770 **/
14771void
James Smartd7c47992010-06-08 18:31:54 -040014772__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14773{
14774 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
14775 phba->sli4_hba.rpi_count--;
14776 phba->sli4_hba.max_cfg_param.rpi_used--;
14777 }
14778}
14779
14780/**
14781 * lpfc_sli4_free_rpi - Release an rpi for reuse.
14782 * @phba: pointer to lpfc hba data structure.
14783 *
14784 * This routine is invoked to release an rpi to the pool of
14785 * available rpis maintained by the driver.
14786 **/
14787void
James Smart6fb120a2009-05-22 14:52:59 -040014788lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
14789{
14790 spin_lock_irq(&phba->hbalock);
James Smartd7c47992010-06-08 18:31:54 -040014791 __lpfc_sli4_free_rpi(phba, rpi);
James Smart6fb120a2009-05-22 14:52:59 -040014792 spin_unlock_irq(&phba->hbalock);
14793}
14794
14795/**
14796 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
14797 * @phba: pointer to lpfc hba data structure.
14798 *
14799 * This routine is invoked to remove the memory region that
14800 * provided rpi via a bitmask.
14801 **/
14802void
14803lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
14804{
14805 kfree(phba->sli4_hba.rpi_bmask);
James Smart6d368e52011-05-24 11:44:12 -040014806 kfree(phba->sli4_hba.rpi_ids);
14807 bf_set(lpfc_rpi_rsrc_rdy, &phba->sli4_hba.sli4_flags, 0);
James Smart6fb120a2009-05-22 14:52:59 -040014808}
14809
14810/**
14811 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
14812 * @phba: pointer to lpfc hba data structure.
14813 *
14814 * This routine is invoked to remove the memory region that
14815 * provided rpi via a bitmask.
14816 **/
14817int
James Smart6b5151f2012-01-18 16:24:06 -050014818lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp,
14819 void (*cmpl)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *arg)
James Smart6fb120a2009-05-22 14:52:59 -040014820{
14821 LPFC_MBOXQ_t *mboxq;
14822 struct lpfc_hba *phba = ndlp->phba;
14823 int rc;
14824
14825 /* The port is notified of the header region via a mailbox command. */
14826 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14827 if (!mboxq)
14828 return -ENOMEM;
14829
14830 /* Post all rpi memory regions to the port. */
14831 lpfc_resume_rpi(mboxq, ndlp);
James Smart6b5151f2012-01-18 16:24:06 -050014832 if (cmpl) {
14833 mboxq->mbox_cmpl = cmpl;
14834 mboxq->context1 = arg;
14835 mboxq->context2 = ndlp;
James Smart72859902012-01-18 16:25:38 -050014836 } else
14837 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart6b5151f2012-01-18 16:24:06 -050014838 mboxq->vport = ndlp->vport;
James Smart6fb120a2009-05-22 14:52:59 -040014839 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14840 if (rc == MBX_NOT_FINISHED) {
14841 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
14842 "2010 Resume RPI Mailbox failed "
14843 "status %d, mbxStatus x%x\n", rc,
14844 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
14845 mempool_free(mboxq, phba->mbox_mem_pool);
14846 return -EIO;
14847 }
14848 return 0;
14849}
14850
14851/**
14852 * lpfc_sli4_init_vpi - Initialize a vpi with the port
James Smart76a95d72010-11-20 23:11:48 -050014853 * @vport: Pointer to the vport for which the vpi is being initialized
James Smart6fb120a2009-05-22 14:52:59 -040014854 *
James Smart76a95d72010-11-20 23:11:48 -050014855 * This routine is invoked to activate a vpi with the port.
James Smart6fb120a2009-05-22 14:52:59 -040014856 *
14857 * Returns:
14858 * 0 success
14859 * -Evalue otherwise
14860 **/
14861int
James Smart76a95d72010-11-20 23:11:48 -050014862lpfc_sli4_init_vpi(struct lpfc_vport *vport)
James Smart6fb120a2009-05-22 14:52:59 -040014863{
14864 LPFC_MBOXQ_t *mboxq;
14865 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040014866 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040014867 uint32_t mbox_tmo;
James Smart76a95d72010-11-20 23:11:48 -050014868 struct lpfc_hba *phba = vport->phba;
James Smart6fb120a2009-05-22 14:52:59 -040014869 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14870 if (!mboxq)
14871 return -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -050014872 lpfc_init_vpi(phba, mboxq, vport->vpi);
James Smarta183a152011-10-10 21:32:43 -040014873 mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
James Smart6fb120a2009-05-22 14:52:59 -040014874 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040014875 if (rc != MBX_SUCCESS) {
James Smart76a95d72010-11-20 23:11:48 -050014876 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
James Smart6fb120a2009-05-22 14:52:59 -040014877 "2022 INIT VPI Mailbox failed "
14878 "status %d, mbxStatus x%x\n", rc,
14879 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040014880 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040014881 }
James Smart6a9c52c2009-10-02 15:16:51 -040014882 if (rc != MBX_TIMEOUT)
James Smart76a95d72010-11-20 23:11:48 -050014883 mempool_free(mboxq, vport->phba->mbox_mem_pool);
James Smart6a9c52c2009-10-02 15:16:51 -040014884
14885 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040014886}
14887
14888/**
14889 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
14890 * @phba: pointer to lpfc hba data structure.
14891 * @mboxq: Pointer to mailbox object.
14892 *
14893 * This routine is invoked to manually add a single FCF record. The caller
14894 * must pass a completely initialized FCF_Record. This routine takes
14895 * care of the nonembedded mailbox operations.
14896 **/
14897static void
14898lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
14899{
14900 void *virt_addr;
14901 union lpfc_sli4_cfg_shdr *shdr;
14902 uint32_t shdr_status, shdr_add_status;
14903
14904 virt_addr = mboxq->sge_array->addr[0];
14905 /* The IOCTL status is embedded in the mailbox subheader. */
14906 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
14907 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
14908 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
14909
14910 if ((shdr_status || shdr_add_status) &&
14911 (shdr_status != STATUS_FCF_IN_USE))
14912 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14913 "2558 ADD_FCF_RECORD mailbox failed with "
14914 "status x%x add_status x%x\n",
14915 shdr_status, shdr_add_status);
14916
14917 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14918}
14919
14920/**
14921 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
14922 * @phba: pointer to lpfc hba data structure.
14923 * @fcf_record: pointer to the initialized fcf record to add.
14924 *
14925 * This routine is invoked to manually add a single FCF record. The caller
14926 * must pass a completely initialized FCF_Record. This routine takes
14927 * care of the nonembedded mailbox operations.
14928 **/
14929int
14930lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
14931{
14932 int rc = 0;
14933 LPFC_MBOXQ_t *mboxq;
14934 uint8_t *bytep;
14935 void *virt_addr;
14936 dma_addr_t phys_addr;
14937 struct lpfc_mbx_sge sge;
14938 uint32_t alloc_len, req_len;
14939 uint32_t fcfindex;
14940
14941 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
14942 if (!mboxq) {
14943 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14944 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
14945 return -ENOMEM;
14946 }
14947
14948 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
14949 sizeof(uint32_t);
14950
14951 /* Allocate DMA memory and set up the non-embedded mailbox command */
14952 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
14953 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
14954 req_len, LPFC_SLI4_MBX_NEMBED);
14955 if (alloc_len < req_len) {
14956 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14957 "2523 Allocated DMA memory size (x%x) is "
14958 "less than the requested DMA memory "
14959 "size (x%x)\n", alloc_len, req_len);
14960 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14961 return -ENOMEM;
14962 }
14963
14964 /*
14965 * Get the first SGE entry from the non-embedded DMA memory. This
14966 * routine only uses a single SGE.
14967 */
14968 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
14969 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040014970 virt_addr = mboxq->sge_array->addr[0];
14971 /*
14972 * Configure the FCF record for FCFI 0. This is the driver's
14973 * hardcoded default and gets used in nonFIP mode.
14974 */
14975 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
14976 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
14977 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
14978
14979 /*
14980 * Copy the fcf_index and the FCF Record Data. The data starts after
14981 * the FCoE header plus word10. The data copy needs to be endian
14982 * correct.
14983 */
14984 bytep += sizeof(uint32_t);
14985 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
14986 mboxq->vport = phba->pport;
14987 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
14988 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
14989 if (rc == MBX_NOT_FINISHED) {
14990 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
14991 "2515 ADD_FCF_RECORD mailbox failed with "
14992 "status 0x%x\n", rc);
14993 lpfc_sli4_mbox_cmd_free(phba, mboxq);
14994 rc = -EIO;
14995 } else
14996 rc = 0;
14997
14998 return rc;
14999}
15000
15001/**
15002 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15003 * @phba: pointer to lpfc hba data structure.
15004 * @fcf_record: pointer to the fcf record to write the default data.
15005 * @fcf_index: FCF table entry index.
15006 *
15007 * This routine is invoked to build the driver's default FCF record. The
15008 * values used are hardcoded. This routine handles memory initialization.
15009 *
15010 **/
15011void
15012lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
15013 struct fcf_record *fcf_record,
15014 uint16_t fcf_index)
15015{
15016 memset(fcf_record, 0, sizeof(struct fcf_record));
15017 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
15018 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
15019 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
15020 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
15021 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
15022 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
15023 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
15024 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
15025 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
15026 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
15027 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
15028 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
15029 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040015030 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040015031 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
15032 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
15033 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
15034 /* Set the VLAN bit map */
15035 if (phba->valid_vlan) {
15036 fcf_record->vlan_bitmap[phba->vlan_id / 8]
15037 = 1 << (phba->vlan_id % 8);
15038 }
15039}
15040
15041/**
James Smart0c9ab6f2010-02-26 14:15:57 -050015042 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
James Smart6fb120a2009-05-22 14:52:59 -040015043 * @phba: pointer to lpfc hba data structure.
15044 * @fcf_index: FCF table entry offset.
15045 *
James Smart0c9ab6f2010-02-26 14:15:57 -050015046 * This routine is invoked to scan the entire FCF table by reading FCF
15047 * record and processing it one at a time starting from the @fcf_index
15048 * for initial FCF discovery or fast FCF failover rediscovery.
15049 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030015050 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050015051 * otherwise.
James Smart6fb120a2009-05-22 14:52:59 -040015052 **/
15053int
James Smart0c9ab6f2010-02-26 14:15:57 -050015054lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
James Smart6fb120a2009-05-22 14:52:59 -040015055{
15056 int rc = 0, error;
15057 LPFC_MBOXQ_t *mboxq;
James Smart6fb120a2009-05-22 14:52:59 -040015058
James Smart32b97932009-07-19 10:01:21 -040015059 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart80c17842012-03-01 22:35:45 -050015060 phba->fcoe_cvl_eventtag_attn = phba->fcoe_cvl_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040015061 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15062 if (!mboxq) {
15063 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15064 "2000 Failed to allocate mbox for "
15065 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040015066 error = -ENOMEM;
James Smart0c9ab6f2010-02-26 14:15:57 -050015067 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040015068 }
James Smartecfd03c2010-02-12 14:41:27 -050015069 /* Construct the read FCF record mailbox command */
James Smart0c9ab6f2010-02-26 14:15:57 -050015070 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
James Smartecfd03c2010-02-12 14:41:27 -050015071 if (rc) {
15072 error = -EINVAL;
James Smart0c9ab6f2010-02-26 14:15:57 -050015073 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040015074 }
James Smartecfd03c2010-02-12 14:41:27 -050015075 /* Issue the mailbox command asynchronously */
James Smart6fb120a2009-05-22 14:52:59 -040015076 mboxq->vport = phba->pport;
James Smart0c9ab6f2010-02-26 14:15:57 -050015077 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
James Smarta93ff372010-10-22 11:06:08 -040015078
15079 spin_lock_irq(&phba->hbalock);
15080 phba->hba_flag |= FCF_TS_INPROG;
15081 spin_unlock_irq(&phba->hbalock);
15082
James Smart6fb120a2009-05-22 14:52:59 -040015083 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
James Smartecfd03c2010-02-12 14:41:27 -050015084 if (rc == MBX_NOT_FINISHED)
James Smart6fb120a2009-05-22 14:52:59 -040015085 error = -EIO;
James Smartecfd03c2010-02-12 14:41:27 -050015086 else {
James Smart38b92ef2010-08-04 16:11:39 -040015087 /* Reset eligible FCF count for new scan */
15088 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
James Smart999d8132010-03-15 11:24:56 -040015089 phba->fcf.eligible_fcf_cnt = 0;
James Smart6fb120a2009-05-22 14:52:59 -040015090 error = 0;
James Smart32b97932009-07-19 10:01:21 -040015091 }
James Smart0c9ab6f2010-02-26 14:15:57 -050015092fail_fcf_scan:
James Smart4d9ab992009-10-02 15:16:39 -040015093 if (error) {
15094 if (mboxq)
15095 lpfc_sli4_mbox_cmd_free(phba, mboxq);
James Smarta93ff372010-10-22 11:06:08 -040015096 /* FCF scan failed, clear FCF_TS_INPROG flag */
James Smart4d9ab992009-10-02 15:16:39 -040015097 spin_lock_irq(&phba->hbalock);
James Smarta93ff372010-10-22 11:06:08 -040015098 phba->hba_flag &= ~FCF_TS_INPROG;
James Smart4d9ab992009-10-02 15:16:39 -040015099 spin_unlock_irq(&phba->hbalock);
15100 }
James Smart6fb120a2009-05-22 14:52:59 -040015101 return error;
15102}
James Smarta0c87cb2009-07-19 10:01:10 -040015103
15104/**
James Smarta93ff372010-10-22 11:06:08 -040015105 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
James Smart0c9ab6f2010-02-26 14:15:57 -050015106 * @phba: pointer to lpfc hba data structure.
15107 * @fcf_index: FCF table entry offset.
15108 *
15109 * This routine is invoked to read an FCF record indicated by @fcf_index
James Smarta93ff372010-10-22 11:06:08 -040015110 * and to use it for FLOGI roundrobin FCF failover.
James Smart0c9ab6f2010-02-26 14:15:57 -050015111 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030015112 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050015113 * otherwise.
15114 **/
15115int
15116lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15117{
15118 int rc = 0, error;
15119 LPFC_MBOXQ_t *mboxq;
15120
15121 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15122 if (!mboxq) {
15123 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15124 "2763 Failed to allocate mbox for "
15125 "READ_FCF cmd\n");
15126 error = -ENOMEM;
15127 goto fail_fcf_read;
15128 }
15129 /* Construct the read FCF record mailbox command */
15130 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15131 if (rc) {
15132 error = -EINVAL;
15133 goto fail_fcf_read;
15134 }
15135 /* Issue the mailbox command asynchronously */
15136 mboxq->vport = phba->pport;
15137 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
15138 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15139 if (rc == MBX_NOT_FINISHED)
15140 error = -EIO;
15141 else
15142 error = 0;
15143
15144fail_fcf_read:
15145 if (error && mboxq)
15146 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15147 return error;
15148}
15149
15150/**
15151 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15152 * @phba: pointer to lpfc hba data structure.
15153 * @fcf_index: FCF table entry offset.
15154 *
15155 * This routine is invoked to read an FCF record indicated by @fcf_index to
James Smarta93ff372010-10-22 11:06:08 -040015156 * determine whether it's eligible for FLOGI roundrobin failover list.
James Smart0c9ab6f2010-02-26 14:15:57 -050015157 *
Lucas De Marchi25985ed2011-03-30 22:57:33 -030015158 * Return 0 if the mailbox command is submitted successfully, none 0
James Smart0c9ab6f2010-02-26 14:15:57 -050015159 * otherwise.
15160 **/
15161int
15162lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
15163{
15164 int rc = 0, error;
15165 LPFC_MBOXQ_t *mboxq;
15166
15167 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15168 if (!mboxq) {
15169 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
15170 "2758 Failed to allocate mbox for "
15171 "READ_FCF cmd\n");
15172 error = -ENOMEM;
15173 goto fail_fcf_read;
15174 }
15175 /* Construct the read FCF record mailbox command */
15176 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
15177 if (rc) {
15178 error = -EINVAL;
15179 goto fail_fcf_read;
15180 }
15181 /* Issue the mailbox command asynchronously */
15182 mboxq->vport = phba->pport;
15183 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
15184 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
15185 if (rc == MBX_NOT_FINISHED)
15186 error = -EIO;
15187 else
15188 error = 0;
15189
15190fail_fcf_read:
15191 if (error && mboxq)
15192 lpfc_sli4_mbox_cmd_free(phba, mboxq);
15193 return error;
15194}
15195
15196/**
James Smart7d791df2011-07-22 18:37:52 -040015197 * lpfc_check_next_fcf_pri
15198 * phba pointer to the lpfc_hba struct for this port.
15199 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15200 * routine when the rr_bmask is empty. The FCF indecies are put into the
15201 * rr_bmask based on their priority level. Starting from the highest priority
15202 * to the lowest. The most likely FCF candidate will be in the highest
15203 * priority group. When this routine is called it searches the fcf_pri list for
15204 * next lowest priority group and repopulates the rr_bmask with only those
15205 * fcf_indexes.
15206 * returns:
15207 * 1=success 0=failure
15208 **/
15209int
15210lpfc_check_next_fcf_pri_level(struct lpfc_hba *phba)
15211{
15212 uint16_t next_fcf_pri;
15213 uint16_t last_index;
15214 struct lpfc_fcf_pri *fcf_pri;
15215 int rc;
15216 int ret = 0;
15217
15218 last_index = find_first_bit(phba->fcf.fcf_rr_bmask,
15219 LPFC_SLI4_FCF_TBL_INDX_MAX);
15220 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
15221 "3060 Last IDX %d\n", last_index);
15222 if (list_empty(&phba->fcf.fcf_pri_list)) {
15223 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
15224 "3061 Last IDX %d\n", last_index);
15225 return 0; /* Empty rr list */
15226 }
15227 next_fcf_pri = 0;
15228 /*
15229 * Clear the rr_bmask and set all of the bits that are at this
15230 * priority.
15231 */
15232 memset(phba->fcf.fcf_rr_bmask, 0,
15233 sizeof(*phba->fcf.fcf_rr_bmask));
15234 spin_lock_irq(&phba->hbalock);
15235 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15236 if (fcf_pri->fcf_rec.flag & LPFC_FCF_FLOGI_FAILED)
15237 continue;
15238 /*
15239 * the 1st priority that has not FLOGI failed
15240 * will be the highest.
15241 */
15242 if (!next_fcf_pri)
15243 next_fcf_pri = fcf_pri->fcf_rec.priority;
15244 spin_unlock_irq(&phba->hbalock);
15245 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15246 rc = lpfc_sli4_fcf_rr_index_set(phba,
15247 fcf_pri->fcf_rec.fcf_index);
15248 if (rc)
15249 return 0;
15250 }
15251 spin_lock_irq(&phba->hbalock);
15252 }
15253 /*
15254 * if next_fcf_pri was not set above and the list is not empty then
15255 * we have failed flogis on all of them. So reset flogi failed
15256 * and start at the begining.
15257 */
15258 if (!next_fcf_pri && !list_empty(&phba->fcf.fcf_pri_list)) {
15259 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15260 fcf_pri->fcf_rec.flag &= ~LPFC_FCF_FLOGI_FAILED;
15261 /*
15262 * the 1st priority that has not FLOGI failed
15263 * will be the highest.
15264 */
15265 if (!next_fcf_pri)
15266 next_fcf_pri = fcf_pri->fcf_rec.priority;
15267 spin_unlock_irq(&phba->hbalock);
15268 if (fcf_pri->fcf_rec.priority == next_fcf_pri) {
15269 rc = lpfc_sli4_fcf_rr_index_set(phba,
15270 fcf_pri->fcf_rec.fcf_index);
15271 if (rc)
15272 return 0;
15273 }
15274 spin_lock_irq(&phba->hbalock);
15275 }
15276 } else
15277 ret = 1;
15278 spin_unlock_irq(&phba->hbalock);
15279
15280 return ret;
15281}
15282/**
James Smart0c9ab6f2010-02-26 14:15:57 -050015283 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15284 * @phba: pointer to lpfc hba data structure.
15285 *
15286 * This routine is to get the next eligible FCF record index in a round
15287 * robin fashion. If the next eligible FCF record index equals to the
James Smarta93ff372010-10-22 11:06:08 -040015288 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
James Smart0c9ab6f2010-02-26 14:15:57 -050015289 * shall be returned, otherwise, the next eligible FCF record's index
15290 * shall be returned.
15291 **/
15292uint16_t
15293lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
15294{
15295 uint16_t next_fcf_index;
15296
James Smart3804dc82010-07-14 15:31:37 -040015297 /* Search start from next bit of currently registered FCF index */
James Smart7d791df2011-07-22 18:37:52 -040015298next_priority:
James Smart3804dc82010-07-14 15:31:37 -040015299 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
15300 LPFC_SLI4_FCF_TBL_INDX_MAX;
James Smart0c9ab6f2010-02-26 14:15:57 -050015301 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15302 LPFC_SLI4_FCF_TBL_INDX_MAX,
James Smart3804dc82010-07-14 15:31:37 -040015303 next_fcf_index);
15304
James Smart0c9ab6f2010-02-26 14:15:57 -050015305 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
James Smart7d791df2011-07-22 18:37:52 -040015306 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15307 /*
15308 * If we have wrapped then we need to clear the bits that
15309 * have been tested so that we can detect when we should
15310 * change the priority level.
15311 */
James Smart0c9ab6f2010-02-26 14:15:57 -050015312 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
15313 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
James Smart7d791df2011-07-22 18:37:52 -040015314 }
15315
James Smart0c9ab6f2010-02-26 14:15:57 -050015316
James Smart3804dc82010-07-14 15:31:37 -040015317 /* Check roundrobin failover list empty condition */
James Smart7d791df2011-07-22 18:37:52 -040015318 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX ||
15319 next_fcf_index == phba->fcf.current_rec.fcf_indx) {
15320 /*
15321 * If next fcf index is not found check if there are lower
15322 * Priority level fcf's in the fcf_priority list.
15323 * Set up the rr_bmask with all of the avaiable fcf bits
15324 * at that level and continue the selection process.
15325 */
15326 if (lpfc_check_next_fcf_pri_level(phba))
15327 goto next_priority;
James Smart3804dc82010-07-14 15:31:37 -040015328 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15329 "2844 No roundrobin failover FCF available\n");
James Smart7d791df2011-07-22 18:37:52 -040015330 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
15331 return LPFC_FCOE_FCF_NEXT_NONE;
15332 else {
15333 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
15334 "3063 Only FCF available idx %d, flag %x\n",
15335 next_fcf_index,
15336 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag);
15337 return next_fcf_index;
15338 }
James Smart3804dc82010-07-14 15:31:37 -040015339 }
15340
James Smart7d791df2011-07-22 18:37:52 -040015341 if (next_fcf_index < LPFC_SLI4_FCF_TBL_INDX_MAX &&
15342 phba->fcf.fcf_pri[next_fcf_index].fcf_rec.flag &
15343 LPFC_FCF_FLOGI_FAILED)
15344 goto next_priority;
15345
James Smart3804dc82010-07-14 15:31:37 -040015346 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015347 "2845 Get next roundrobin failover FCF (x%x)\n",
15348 next_fcf_index);
15349
James Smart0c9ab6f2010-02-26 14:15:57 -050015350 return next_fcf_index;
15351}
15352
15353/**
15354 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15355 * @phba: pointer to lpfc hba data structure.
15356 *
15357 * This routine sets the FCF record index in to the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040015358 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050015359 * does not go beyond the range of the driver allocated bmask dimension
15360 * before setting the bit.
15361 *
15362 * Returns 0 if the index bit successfully set, otherwise, it returns
15363 * -EINVAL.
15364 **/
15365int
15366lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
15367{
15368 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15369 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015370 "2610 FCF (x%x) reached driver's book "
15371 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050015372 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15373 return -EINVAL;
15374 }
15375 /* Set the eligible FCF record index bmask */
15376 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
15377
James Smart3804dc82010-07-14 15:31:37 -040015378 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015379 "2790 Set FCF (x%x) to roundrobin FCF failover "
James Smart3804dc82010-07-14 15:31:37 -040015380 "bmask\n", fcf_index);
15381
James Smart0c9ab6f2010-02-26 14:15:57 -050015382 return 0;
15383}
15384
15385/**
James Smart3804dc82010-07-14 15:31:37 -040015386 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
James Smart0c9ab6f2010-02-26 14:15:57 -050015387 * @phba: pointer to lpfc hba data structure.
15388 *
15389 * This routine clears the FCF record index from the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040015390 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050015391 * does not go beyond the range of the driver allocated bmask dimension
15392 * before clearing the bit.
15393 **/
15394void
15395lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
15396{
James Smart7d791df2011-07-22 18:37:52 -040015397 struct lpfc_fcf_pri *fcf_pri;
James Smart0c9ab6f2010-02-26 14:15:57 -050015398 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
15399 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015400 "2762 FCF (x%x) reached driver's book "
15401 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050015402 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
15403 return;
15404 }
15405 /* Clear the eligible FCF record index bmask */
James Smart7d791df2011-07-22 18:37:52 -040015406 spin_lock_irq(&phba->hbalock);
15407 list_for_each_entry(fcf_pri, &phba->fcf.fcf_pri_list, list) {
15408 if (fcf_pri->fcf_rec.fcf_index == fcf_index) {
15409 list_del_init(&fcf_pri->list);
15410 break;
15411 }
15412 }
15413 spin_unlock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050015414 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
James Smart3804dc82010-07-14 15:31:37 -040015415
15416 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015417 "2791 Clear FCF (x%x) from roundrobin failover "
James Smart3804dc82010-07-14 15:31:37 -040015418 "bmask\n", fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050015419}
15420
15421/**
James Smartecfd03c2010-02-12 14:41:27 -050015422 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15423 * @phba: pointer to lpfc hba data structure.
15424 *
15425 * This routine is the completion routine for the rediscover FCF table mailbox
15426 * command. If the mailbox command returned failure, it will try to stop the
15427 * FCF rediscover wait timer.
15428 **/
15429void
15430lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
15431{
15432 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15433 uint32_t shdr_status, shdr_add_status;
15434
15435 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15436
15437 shdr_status = bf_get(lpfc_mbox_hdr_status,
15438 &redisc_fcf->header.cfg_shdr.response);
15439 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
15440 &redisc_fcf->header.cfg_shdr.response);
15441 if (shdr_status || shdr_add_status) {
James Smart0c9ab6f2010-02-26 14:15:57 -050015442 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smartecfd03c2010-02-12 14:41:27 -050015443 "2746 Requesting for FCF rediscovery failed "
15444 "status x%x add_status x%x\n",
15445 shdr_status, shdr_add_status);
James Smart0c9ab6f2010-02-26 14:15:57 -050015446 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
James Smartfc2b9892010-02-26 14:15:29 -050015447 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050015448 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050015449 spin_unlock_irq(&phba->hbalock);
15450 /*
15451 * CVL event triggered FCF rediscover request failed,
15452 * last resort to re-try current registered FCF entry.
15453 */
15454 lpfc_retry_pport_discovery(phba);
15455 } else {
15456 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050015457 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050015458 spin_unlock_irq(&phba->hbalock);
15459 /*
15460 * DEAD FCF event triggered FCF rediscover request
15461 * failed, last resort to fail over as a link down
15462 * to FCF registration.
15463 */
15464 lpfc_sli4_fcf_dead_failthrough(phba);
15465 }
James Smart0c9ab6f2010-02-26 14:15:57 -050015466 } else {
15467 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040015468 "2775 Start FCF rediscover quiescent timer\n");
James Smartecfd03c2010-02-12 14:41:27 -050015469 /*
15470 * Start FCF rediscovery wait timer for pending FCF
15471 * before rescan FCF record table.
15472 */
15473 lpfc_fcf_redisc_wait_start_timer(phba);
James Smart0c9ab6f2010-02-26 14:15:57 -050015474 }
James Smartecfd03c2010-02-12 14:41:27 -050015475
15476 mempool_free(mbox, phba->mbox_mem_pool);
15477}
15478
15479/**
James Smart3804dc82010-07-14 15:31:37 -040015480 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
James Smartecfd03c2010-02-12 14:41:27 -050015481 * @phba: pointer to lpfc hba data structure.
15482 *
15483 * This routine is invoked to request for rediscovery of the entire FCF table
15484 * by the port.
15485 **/
15486int
15487lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
15488{
15489 LPFC_MBOXQ_t *mbox;
15490 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
15491 int rc, length;
15492
James Smart0c9ab6f2010-02-26 14:15:57 -050015493 /* Cancel retry delay timers to all vports before FCF rediscover */
15494 lpfc_cancel_all_vport_retry_delay_timer(phba);
15495
James Smartecfd03c2010-02-12 14:41:27 -050015496 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15497 if (!mbox) {
15498 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
15499 "2745 Failed to allocate mbox for "
15500 "requesting FCF rediscover.\n");
15501 return -ENOMEM;
15502 }
15503
15504 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
15505 sizeof(struct lpfc_sli4_cfg_mhdr));
15506 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
15507 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
15508 length, LPFC_SLI4_MBX_EMBED);
15509
15510 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
15511 /* Set count to 0 for invalidating the entire FCF database */
15512 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
15513
15514 /* Issue the mailbox command asynchronously */
15515 mbox->vport = phba->pport;
15516 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
15517 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
15518
15519 if (rc == MBX_NOT_FINISHED) {
15520 mempool_free(mbox, phba->mbox_mem_pool);
15521 return -EIO;
15522 }
15523 return 0;
15524}
15525
15526/**
James Smartfc2b9892010-02-26 14:15:29 -050015527 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15528 * @phba: pointer to lpfc hba data structure.
15529 *
15530 * This function is the failover routine as a last resort to the FCF DEAD
15531 * event when driver failed to perform fast FCF failover.
15532 **/
15533void
15534lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
15535{
15536 uint32_t link_state;
15537
15538 /*
15539 * Last resort as FCF DEAD event failover will treat this as
15540 * a link down, but save the link state because we don't want
15541 * it to be changed to Link Down unless it is already down.
15542 */
15543 link_state = phba->link_state;
15544 lpfc_linkdown(phba);
15545 phba->link_state = link_state;
15546
15547 /* Unregister FCF if no devices connected to it */
15548 lpfc_unregister_unused_fcf(phba);
15549}
15550
15551/**
James Smart026abb82011-12-13 13:20:45 -050015552 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040015553 * @phba: pointer to lpfc hba data structure.
James Smart026abb82011-12-13 13:20:45 -050015554 * @rgn23_data: pointer to configure region 23 data.
James Smarta0c87cb2009-07-19 10:01:10 -040015555 *
James Smart026abb82011-12-13 13:20:45 -050015556 * This function gets SLI3 port configure region 23 data through memory dump
15557 * mailbox command. When it successfully retrieves data, the size of the data
15558 * will be returned, otherwise, 0 will be returned.
James Smarta0c87cb2009-07-19 10:01:10 -040015559 **/
James Smart026abb82011-12-13 13:20:45 -050015560static uint32_t
15561lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
James Smarta0c87cb2009-07-19 10:01:10 -040015562{
15563 LPFC_MBOXQ_t *pmb = NULL;
15564 MAILBOX_t *mb;
James Smart026abb82011-12-13 13:20:45 -050015565 uint32_t offset = 0;
James Smarta0c87cb2009-07-19 10:01:10 -040015566 int rc;
15567
James Smart026abb82011-12-13 13:20:45 -050015568 if (!rgn23_data)
15569 return 0;
15570
James Smarta0c87cb2009-07-19 10:01:10 -040015571 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15572 if (!pmb) {
15573 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050015574 "2600 failed to allocate mailbox memory\n");
15575 return 0;
James Smarta0c87cb2009-07-19 10:01:10 -040015576 }
15577 mb = &pmb->u.mb;
15578
James Smarta0c87cb2009-07-19 10:01:10 -040015579 do {
15580 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
15581 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
15582
15583 if (rc != MBX_SUCCESS) {
15584 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smart026abb82011-12-13 13:20:45 -050015585 "2601 failed to read config "
15586 "region 23, rc 0x%x Status 0x%x\n",
15587 rc, mb->mbxStatus);
James Smarta0c87cb2009-07-19 10:01:10 -040015588 mb->un.varDmp.word_cnt = 0;
15589 }
15590 /*
15591 * dump mem may return a zero when finished or we got a
15592 * mailbox error, either way we are done.
15593 */
15594 if (mb->un.varDmp.word_cnt == 0)
15595 break;
15596 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
15597 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
15598
15599 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
James Smart026abb82011-12-13 13:20:45 -050015600 rgn23_data + offset,
15601 mb->un.varDmp.word_cnt);
James Smarta0c87cb2009-07-19 10:01:10 -040015602 offset += mb->un.varDmp.word_cnt;
15603 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
15604
James Smart026abb82011-12-13 13:20:45 -050015605 mempool_free(pmb, phba->mbox_mem_pool);
15606 return offset;
15607}
15608
15609/**
15610 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15611 * @phba: pointer to lpfc hba data structure.
15612 * @rgn23_data: pointer to configure region 23 data.
15613 *
15614 * This function gets SLI4 port configure region 23 data through memory dump
15615 * mailbox command. When it successfully retrieves data, the size of the data
15616 * will be returned, otherwise, 0 will be returned.
15617 **/
15618static uint32_t
15619lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
15620{
15621 LPFC_MBOXQ_t *mboxq = NULL;
15622 struct lpfc_dmabuf *mp = NULL;
15623 struct lpfc_mqe *mqe;
15624 uint32_t data_length = 0;
15625 int rc;
15626
15627 if (!rgn23_data)
15628 return 0;
15629
15630 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15631 if (!mboxq) {
15632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15633 "3105 failed to allocate mailbox memory\n");
15634 return 0;
15635 }
15636
15637 if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
15638 goto out;
15639 mqe = &mboxq->u.mqe;
15640 mp = (struct lpfc_dmabuf *) mboxq->context1;
15641 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
15642 if (rc)
15643 goto out;
15644 data_length = mqe->un.mb_words[5];
15645 if (data_length == 0)
15646 goto out;
15647 if (data_length > DMP_RGN23_SIZE) {
15648 data_length = 0;
15649 goto out;
15650 }
15651 lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
15652out:
15653 mempool_free(mboxq, phba->mbox_mem_pool);
15654 if (mp) {
15655 lpfc_mbuf_free(phba, mp->virt, mp->phys);
15656 kfree(mp);
15657 }
15658 return data_length;
15659}
15660
15661/**
15662 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15663 * @phba: pointer to lpfc hba data structure.
15664 *
15665 * This function read region 23 and parse TLV for port status to
15666 * decide if the user disaled the port. If the TLV indicates the
15667 * port is disabled, the hba_flag is set accordingly.
15668 **/
15669void
15670lpfc_sli_read_link_ste(struct lpfc_hba *phba)
15671{
15672 uint8_t *rgn23_data = NULL;
15673 uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
15674 uint32_t offset = 0;
15675
15676 /* Get adapter Region 23 data */
15677 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
15678 if (!rgn23_data)
15679 goto out;
15680
15681 if (phba->sli_rev < LPFC_SLI_REV4)
15682 data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
15683 else {
15684 if_type = bf_get(lpfc_sli_intf_if_type,
15685 &phba->sli4_hba.sli_intf);
15686 if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
15687 goto out;
15688 data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
15689 }
James Smarta0c87cb2009-07-19 10:01:10 -040015690
15691 if (!data_size)
15692 goto out;
15693
15694 /* Check the region signature first */
15695 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
15696 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15697 "2619 Config region 23 has bad signature\n");
15698 goto out;
15699 }
15700 offset += 4;
15701
15702 /* Check the data structure version */
15703 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
15704 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15705 "2620 Config region 23 has bad version\n");
15706 goto out;
15707 }
15708 offset += 4;
15709
15710 /* Parse TLV entries in the region */
15711 while (offset < data_size) {
15712 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
15713 break;
15714 /*
15715 * If the TLV is not driver specific TLV or driver id is
15716 * not linux driver id, skip the record.
15717 */
15718 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
15719 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
15720 (rgn23_data[offset + 3] != 0)) {
15721 offset += rgn23_data[offset + 1] * 4 + 4;
15722 continue;
15723 }
15724
15725 /* Driver found a driver specific TLV in the config region */
15726 sub_tlv_len = rgn23_data[offset + 1] * 4;
15727 offset += 4;
15728 tlv_offset = 0;
15729
15730 /*
15731 * Search for configured port state sub-TLV.
15732 */
15733 while ((offset < data_size) &&
15734 (tlv_offset < sub_tlv_len)) {
15735 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
15736 offset += 4;
15737 tlv_offset += 4;
15738 break;
15739 }
15740 if (rgn23_data[offset] != PORT_STE_TYPE) {
15741 offset += rgn23_data[offset + 1] * 4 + 4;
15742 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
15743 continue;
15744 }
15745
15746 /* This HBA contains PORT_STE configured */
15747 if (!rgn23_data[offset + 2])
15748 phba->hba_flag |= LINK_DISABLED;
15749
15750 goto out;
15751 }
15752 }
James Smart026abb82011-12-13 13:20:45 -050015753
James Smarta0c87cb2009-07-19 10:01:10 -040015754out:
James Smarta0c87cb2009-07-19 10:01:10 -040015755 kfree(rgn23_data);
15756 return;
15757}
James Smart695a8142010-01-26 23:08:03 -050015758
15759/**
James Smart52d52442011-05-24 11:42:45 -040015760 * lpfc_wr_object - write an object to the firmware
15761 * @phba: HBA structure that indicates port to create a queue on.
15762 * @dmabuf_list: list of dmabufs to write to the port.
15763 * @size: the total byte value of the objects to write to the port.
15764 * @offset: the current offset to be used to start the transfer.
15765 *
15766 * This routine will create a wr_object mailbox command to send to the port.
15767 * the mailbox command will be constructed using the dma buffers described in
15768 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
15769 * BDEs that the imbedded mailbox can support. The @offset variable will be
15770 * used to indicate the starting offset of the transfer and will also return
15771 * the offset after the write object mailbox has completed. @size is used to
15772 * determine the end of the object and whether the eof bit should be set.
15773 *
15774 * Return 0 is successful and offset will contain the the new offset to use
15775 * for the next write.
15776 * Return negative value for error cases.
15777 **/
15778int
15779lpfc_wr_object(struct lpfc_hba *phba, struct list_head *dmabuf_list,
15780 uint32_t size, uint32_t *offset)
15781{
15782 struct lpfc_mbx_wr_object *wr_object;
15783 LPFC_MBOXQ_t *mbox;
15784 int rc = 0, i = 0;
15785 uint32_t shdr_status, shdr_add_status;
15786 uint32_t mbox_tmo;
15787 union lpfc_sli4_cfg_shdr *shdr;
15788 struct lpfc_dmabuf *dmabuf;
15789 uint32_t written = 0;
15790
15791 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
15792 if (!mbox)
15793 return -ENOMEM;
15794
15795 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
15796 LPFC_MBOX_OPCODE_WRITE_OBJECT,
15797 sizeof(struct lpfc_mbx_wr_object) -
15798 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
15799
15800 wr_object = (struct lpfc_mbx_wr_object *)&mbox->u.mqe.un.wr_object;
15801 wr_object->u.request.write_offset = *offset;
15802 sprintf((uint8_t *)wr_object->u.request.object_name, "/");
15803 wr_object->u.request.object_name[0] =
15804 cpu_to_le32(wr_object->u.request.object_name[0]);
15805 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 0);
15806 list_for_each_entry(dmabuf, dmabuf_list, list) {
15807 if (i >= LPFC_MBX_WR_CONFIG_MAX_BDE || written >= size)
15808 break;
15809 wr_object->u.request.bde[i].addrLow = putPaddrLow(dmabuf->phys);
15810 wr_object->u.request.bde[i].addrHigh =
15811 putPaddrHigh(dmabuf->phys);
15812 if (written + SLI4_PAGE_SIZE >= size) {
15813 wr_object->u.request.bde[i].tus.f.bdeSize =
15814 (size - written);
15815 written += (size - written);
15816 bf_set(lpfc_wr_object_eof, &wr_object->u.request, 1);
15817 } else {
15818 wr_object->u.request.bde[i].tus.f.bdeSize =
15819 SLI4_PAGE_SIZE;
15820 written += SLI4_PAGE_SIZE;
15821 }
15822 i++;
15823 }
15824 wr_object->u.request.bde_count = i;
15825 bf_set(lpfc_wr_object_write_length, &wr_object->u.request, written);
15826 if (!phba->sli4_hba.intr_enable)
15827 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
15828 else {
James Smarta183a152011-10-10 21:32:43 -040015829 mbox_tmo = lpfc_mbox_tmo_val(phba, mbox);
James Smart52d52442011-05-24 11:42:45 -040015830 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
15831 }
15832 /* The IOCTL status is embedded in the mailbox subheader. */
15833 shdr = (union lpfc_sli4_cfg_shdr *) &wr_object->header.cfg_shdr;
15834 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
15835 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
15836 if (rc != MBX_TIMEOUT)
15837 mempool_free(mbox, phba->mbox_mem_pool);
15838 if (shdr_status || shdr_add_status || rc) {
15839 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
15840 "3025 Write Object mailbox failed with "
15841 "status x%x add_status x%x, mbx status x%x\n",
15842 shdr_status, shdr_add_status, rc);
15843 rc = -ENXIO;
15844 } else
15845 *offset += wr_object->u.response.actual_write_length;
15846 return rc;
15847}
15848
15849/**
James Smart695a8142010-01-26 23:08:03 -050015850 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
15851 * @vport: pointer to vport data structure.
15852 *
15853 * This function iterate through the mailboxq and clean up all REG_LOGIN
15854 * and REG_VPI mailbox commands associated with the vport. This function
15855 * is called when driver want to restart discovery of the vport due to
15856 * a Clear Virtual Link event.
15857 **/
15858void
15859lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
15860{
15861 struct lpfc_hba *phba = vport->phba;
15862 LPFC_MBOXQ_t *mb, *nextmb;
15863 struct lpfc_dmabuf *mp;
James Smart78730cf2010-04-06 15:06:30 -040015864 struct lpfc_nodelist *ndlp;
James Smartd439d282010-09-29 11:18:45 -040015865 struct lpfc_nodelist *act_mbx_ndlp = NULL;
James Smart589a52d2010-07-14 15:30:54 -040015866 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
James Smartd439d282010-09-29 11:18:45 -040015867 LIST_HEAD(mbox_cmd_list);
James Smart63e801c2010-11-20 23:14:19 -050015868 uint8_t restart_loop;
James Smart695a8142010-01-26 23:08:03 -050015869
James Smartd439d282010-09-29 11:18:45 -040015870 /* Clean up internally queued mailbox commands with the vport */
James Smart695a8142010-01-26 23:08:03 -050015871 spin_lock_irq(&phba->hbalock);
15872 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
15873 if (mb->vport != vport)
15874 continue;
15875
15876 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15877 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15878 continue;
15879
James Smartd439d282010-09-29 11:18:45 -040015880 list_del(&mb->list);
15881 list_add_tail(&mb->list, &mbox_cmd_list);
15882 }
15883 /* Clean up active mailbox command with the vport */
15884 mb = phba->sli.mbox_active;
15885 if (mb && (mb->vport == vport)) {
15886 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
15887 (mb->u.mb.mbxCommand == MBX_REG_VPI))
15888 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15889 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15890 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
15891 /* Put reference count for delayed processing */
15892 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
15893 /* Unregister the RPI when mailbox complete */
15894 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15895 }
15896 }
James Smart63e801c2010-11-20 23:14:19 -050015897 /* Cleanup any mailbox completions which are not yet processed */
15898 do {
15899 restart_loop = 0;
15900 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
15901 /*
15902 * If this mailox is already processed or it is
15903 * for another vport ignore it.
15904 */
15905 if ((mb->vport != vport) ||
15906 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
15907 continue;
15908
15909 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
15910 (mb->u.mb.mbxCommand != MBX_REG_VPI))
15911 continue;
15912
15913 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
15914 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15915 ndlp = (struct lpfc_nodelist *)mb->context2;
15916 /* Unregister the RPI when mailbox complete */
15917 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
15918 restart_loop = 1;
15919 spin_unlock_irq(&phba->hbalock);
15920 spin_lock(shost->host_lock);
15921 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15922 spin_unlock(shost->host_lock);
15923 spin_lock_irq(&phba->hbalock);
15924 break;
15925 }
15926 }
15927 } while (restart_loop);
15928
James Smartd439d282010-09-29 11:18:45 -040015929 spin_unlock_irq(&phba->hbalock);
15930
15931 /* Release the cleaned-up mailbox commands */
15932 while (!list_empty(&mbox_cmd_list)) {
15933 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
James Smart695a8142010-01-26 23:08:03 -050015934 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
15935 mp = (struct lpfc_dmabuf *) (mb->context1);
15936 if (mp) {
15937 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
15938 kfree(mp);
15939 }
James Smart78730cf2010-04-06 15:06:30 -040015940 ndlp = (struct lpfc_nodelist *) mb->context2;
James Smartd439d282010-09-29 11:18:45 -040015941 mb->context2 = NULL;
James Smart78730cf2010-04-06 15:06:30 -040015942 if (ndlp) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020015943 spin_lock(shost->host_lock);
James Smart589a52d2010-07-14 15:30:54 -040015944 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
Dan Carpenterec21b3b2010-08-08 00:15:17 +020015945 spin_unlock(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040015946 lpfc_nlp_put(ndlp);
James Smart78730cf2010-04-06 15:06:30 -040015947 }
James Smart695a8142010-01-26 23:08:03 -050015948 }
James Smart695a8142010-01-26 23:08:03 -050015949 mempool_free(mb, phba->mbox_mem_pool);
15950 }
James Smartd439d282010-09-29 11:18:45 -040015951
15952 /* Release the ndlp with the cleaned-up active mailbox command */
15953 if (act_mbx_ndlp) {
15954 spin_lock(shost->host_lock);
15955 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
15956 spin_unlock(shost->host_lock);
15957 lpfc_nlp_put(act_mbx_ndlp);
James Smart695a8142010-01-26 23:08:03 -050015958 }
James Smart695a8142010-01-26 23:08:03 -050015959}
15960
James Smart2a9bf3d2010-06-07 15:24:45 -040015961/**
15962 * lpfc_drain_txq - Drain the txq
15963 * @phba: Pointer to HBA context object.
15964 *
15965 * This function attempt to submit IOCBs on the txq
15966 * to the adapter. For SLI4 adapters, the txq contains
15967 * ELS IOCBs that have been deferred because the there
15968 * are no SGLs. This congestion can occur with large
15969 * vport counts during node discovery.
15970 **/
15971
15972uint32_t
15973lpfc_drain_txq(struct lpfc_hba *phba)
15974{
15975 LIST_HEAD(completions);
15976 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
15977 struct lpfc_iocbq *piocbq = 0;
15978 unsigned long iflags = 0;
15979 char *fail_msg = NULL;
15980 struct lpfc_sglq *sglq;
15981 union lpfc_wqe wqe;
15982
15983 spin_lock_irqsave(&phba->hbalock, iflags);
15984 if (pring->txq_cnt > pring->txq_max)
15985 pring->txq_max = pring->txq_cnt;
15986
15987 spin_unlock_irqrestore(&phba->hbalock, iflags);
15988
15989 while (pring->txq_cnt) {
15990 spin_lock_irqsave(&phba->hbalock, iflags);
15991
James Smart19ca7602010-11-20 23:11:55 -050015992 piocbq = lpfc_sli_ringtx_get(phba, pring);
15993 sglq = __lpfc_sli_get_sglq(phba, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040015994 if (!sglq) {
James Smart19ca7602010-11-20 23:11:55 -050015995 __lpfc_sli_ringtx_put(phba, pring, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040015996 spin_unlock_irqrestore(&phba->hbalock, iflags);
15997 break;
15998 } else {
James Smart2a9bf3d2010-06-07 15:24:45 -040015999 if (!piocbq) {
16000 /* The txq_cnt out of sync. This should
16001 * never happen
16002 */
16003 sglq = __lpfc_clear_active_sglq(phba,
James Smart6d368e52011-05-24 11:44:12 -040016004 sglq->sli4_lxritag);
James Smart2a9bf3d2010-06-07 15:24:45 -040016005 spin_unlock_irqrestore(&phba->hbalock, iflags);
16006 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16007 "2823 txq empty and txq_cnt is %d\n ",
16008 pring->txq_cnt);
16009 break;
16010 }
16011 }
16012
16013 /* The xri and iocb resources secured,
16014 * attempt to issue request
16015 */
James Smart6d368e52011-05-24 11:44:12 -040016016 piocbq->sli4_lxritag = sglq->sli4_lxritag;
James Smart2a9bf3d2010-06-07 15:24:45 -040016017 piocbq->sli4_xritag = sglq->sli4_xritag;
16018 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
16019 fail_msg = "to convert bpl to sgl";
16020 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
16021 fail_msg = "to convert iocb to wqe";
16022 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
16023 fail_msg = " - Wq is full";
16024 else
16025 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
16026
16027 if (fail_msg) {
16028 /* Failed means we can't issue and need to cancel */
16029 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
16030 "2822 IOCB failed %s iotag 0x%x "
16031 "xri 0x%x\n",
16032 fail_msg,
16033 piocbq->iotag, piocbq->sli4_xritag);
16034 list_add_tail(&piocbq->list, &completions);
16035 }
16036 spin_unlock_irqrestore(&phba->hbalock, iflags);
16037 }
16038
James Smart2a9bf3d2010-06-07 15:24:45 -040016039 /* Cancel all the IOCBs that cannot be issued */
16040 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
16041 IOERR_SLI_ABORTED);
16042
16043 return pring->txq_cnt;
16044}