blob: b85c40e3bf55f1e94b0977f522603927c9b482f2 [file] [log] [blame]
dea31012005-04-17 16:05:31 -05001/*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
James.Smart@Emulex.Comc44ce172005-06-25 10:34:39 -04003 * Fibre Channel Host Bus Adapters. *
James Smartd8e93df2009-05-22 14:53:05 -04004 * Copyright (C) 2004-2009 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 Smart4f774512009-05-22 14:52:35 -040068static IOCB_t *
69lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
70{
71 return &iocbq->iocb;
72}
73
74/**
75 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
76 * @q: The Work Queue to operate on.
77 * @wqe: The work Queue Entry to put on the Work queue.
78 *
79 * This routine will copy the contents of @wqe to the next available entry on
80 * the @q. This function will then ring the Work Queue Doorbell to signal the
81 * HBA to start processing the Work Queue Entry. This function returns 0 if
82 * successful. If no entries are available on @q then this function will return
83 * -ENOMEM.
84 * The caller is expected to hold the hbalock when calling this routine.
85 **/
86static uint32_t
87lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
88{
89 union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
90 struct lpfc_register doorbell;
91 uint32_t host_index;
92
93 /* If the host has not yet processed the next entry then we are done */
94 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
95 return -ENOMEM;
96 /* set consumption flag every once in a while */
97 if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
James Smartf0d9bcc2010-10-22 11:07:09 -040098 bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
James Smartfedd3b72011-02-16 12:39:24 -050099 if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
100 bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
James Smart4f774512009-05-22 14:52:35 -0400101 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
102
103 /* Update the host index before invoking device */
104 host_index = q->host_index;
105 q->host_index = ((q->host_index + 1) % q->entry_count);
106
107 /* Ring Doorbell */
108 doorbell.word0 = 0;
109 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
110 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
111 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
112 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
113 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
114
115 return 0;
116}
117
118/**
119 * lpfc_sli4_wq_release - Updates internal hba index for WQ
120 * @q: The Work Queue to operate on.
121 * @index: The index to advance the hba index to.
122 *
123 * This routine will update the HBA index of a queue to reflect consumption of
124 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
125 * an entry the host calls this function to update the queue's internal
126 * pointers. This routine returns the number of entries that were consumed by
127 * the HBA.
128 **/
129static uint32_t
130lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
131{
132 uint32_t released = 0;
133
134 if (q->hba_index == index)
135 return 0;
136 do {
137 q->hba_index = ((q->hba_index + 1) % q->entry_count);
138 released++;
139 } while (q->hba_index != index);
140 return released;
141}
142
143/**
144 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
145 * @q: The Mailbox Queue to operate on.
146 * @wqe: The Mailbox Queue Entry to put on the Work queue.
147 *
148 * This routine will copy the contents of @mqe to the next available entry on
149 * the @q. This function will then ring the Work Queue Doorbell to signal the
150 * HBA to start processing the Work Queue Entry. This function returns 0 if
151 * successful. If no entries are available on @q then this function will return
152 * -ENOMEM.
153 * The caller is expected to hold the hbalock when calling this routine.
154 **/
155static uint32_t
156lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
157{
158 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
159 struct lpfc_register doorbell;
160 uint32_t host_index;
161
162 /* If the host has not yet processed the next entry then we are done */
163 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
164 return -ENOMEM;
165 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
166 /* Save off the mailbox pointer for completion */
167 q->phba->mbox = (MAILBOX_t *)temp_mqe;
168
169 /* Update the host index before invoking device */
170 host_index = q->host_index;
171 q->host_index = ((q->host_index + 1) % q->entry_count);
172
173 /* Ring Doorbell */
174 doorbell.word0 = 0;
175 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
176 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
177 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
178 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
179 return 0;
180}
181
182/**
183 * lpfc_sli4_mq_release - Updates internal hba index for MQ
184 * @q: The Mailbox Queue to operate on.
185 *
186 * This routine will update the HBA index of a queue to reflect consumption of
187 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
188 * an entry the host calls this function to update the queue's internal
189 * pointers. This routine returns the number of entries that were consumed by
190 * the HBA.
191 **/
192static uint32_t
193lpfc_sli4_mq_release(struct lpfc_queue *q)
194{
195 /* Clear the mailbox pointer for completion */
196 q->phba->mbox = NULL;
197 q->hba_index = ((q->hba_index + 1) % q->entry_count);
198 return 1;
199}
200
201/**
202 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
203 * @q: The Event Queue to get the first valid EQE from
204 *
205 * This routine will get the first valid Event Queue Entry from @q, update
206 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
207 * the Queue (no more work to do), or the Queue is full of EQEs that have been
208 * processed, but not popped back to the HBA then this routine will return NULL.
209 **/
210static struct lpfc_eqe *
211lpfc_sli4_eq_get(struct lpfc_queue *q)
212{
213 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
214
215 /* If the next EQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400216 if (!bf_get_le32(lpfc_eqe_valid, eqe))
James Smart4f774512009-05-22 14:52:35 -0400217 return NULL;
218 /* If the host has not yet processed the next entry then we are done */
219 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
220 return NULL;
221
222 q->hba_index = ((q->hba_index + 1) % q->entry_count);
223 return eqe;
224}
225
226/**
227 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
228 * @q: The Event Queue that the host has completed processing for.
229 * @arm: Indicates whether the host wants to arms this CQ.
230 *
231 * This routine will mark all Event Queue Entries on @q, from the last
232 * known completed entry to the last entry that was processed, as completed
233 * by clearing the valid bit for each completion queue entry. Then it will
234 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
235 * The internal host index in the @q will be updated by this routine to indicate
236 * that the host has finished processing the entries. The @arm parameter
237 * indicates that the queue should be rearmed when ringing the doorbell.
238 *
239 * This function will return the number of EQEs that were popped.
240 **/
241uint32_t
242lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
243{
244 uint32_t released = 0;
245 struct lpfc_eqe *temp_eqe;
246 struct lpfc_register doorbell;
247
248 /* while there are valid entries */
249 while (q->hba_index != q->host_index) {
250 temp_eqe = q->qe[q->host_index].eqe;
James Smartcb5172e2010-03-15 11:25:07 -0400251 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
James Smart4f774512009-05-22 14:52:35 -0400252 released++;
253 q->host_index = ((q->host_index + 1) % q->entry_count);
254 }
255 if (unlikely(released == 0 && !arm))
256 return 0;
257
258 /* ring doorbell for number popped */
259 doorbell.word0 = 0;
260 if (arm) {
261 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
262 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
263 }
264 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
265 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
266 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
267 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500268 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
269 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
270 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400271 return released;
272}
273
274/**
275 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
276 * @q: The Completion Queue to get the first valid CQE from
277 *
278 * This routine will get the first valid Completion Queue Entry from @q, update
279 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
280 * the Queue (no more work to do), or the Queue is full of CQEs that have been
281 * processed, but not popped back to the HBA then this routine will return NULL.
282 **/
283static struct lpfc_cqe *
284lpfc_sli4_cq_get(struct lpfc_queue *q)
285{
286 struct lpfc_cqe *cqe;
287
288 /* If the next CQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400289 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
James Smart4f774512009-05-22 14:52:35 -0400290 return NULL;
291 /* If the host has not yet processed the next entry then we are done */
292 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
293 return NULL;
294
295 cqe = q->qe[q->hba_index].cqe;
296 q->hba_index = ((q->hba_index + 1) % q->entry_count);
297 return cqe;
298}
299
300/**
301 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
302 * @q: The Completion Queue that the host has completed processing for.
303 * @arm: Indicates whether the host wants to arms this CQ.
304 *
305 * This routine will mark all Completion queue entries on @q, from the last
306 * known completed entry to the last entry that was processed, as completed
307 * by clearing the valid bit for each completion queue entry. Then it will
308 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
309 * The internal host index in the @q will be updated by this routine to indicate
310 * that the host has finished processing the entries. The @arm parameter
311 * indicates that the queue should be rearmed when ringing the doorbell.
312 *
313 * This function will return the number of CQEs that were released.
314 **/
315uint32_t
316lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
317{
318 uint32_t released = 0;
319 struct lpfc_cqe *temp_qe;
320 struct lpfc_register doorbell;
321
322 /* while there are valid entries */
323 while (q->hba_index != q->host_index) {
324 temp_qe = q->qe[q->host_index].cqe;
James Smartcb5172e2010-03-15 11:25:07 -0400325 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
James Smart4f774512009-05-22 14:52:35 -0400326 released++;
327 q->host_index = ((q->host_index + 1) % q->entry_count);
328 }
329 if (unlikely(released == 0 && !arm))
330 return 0;
331
332 /* ring doorbell for number popped */
333 doorbell.word0 = 0;
334 if (arm)
335 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
336 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
337 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
338 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
339 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
340 return released;
341}
342
343/**
344 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
345 * @q: The Header Receive Queue to operate on.
346 * @wqe: The Receive Queue Entry to put on the Receive queue.
347 *
348 * This routine will copy the contents of @wqe to the next available entry on
349 * the @q. This function will then ring the Receive Queue Doorbell to signal the
350 * HBA to start processing the Receive Queue Entry. This function returns the
351 * index that the rqe was copied to if successful. If no entries are available
352 * on @q then this function will return -ENOMEM.
353 * The caller is expected to hold the hbalock when calling this routine.
354 **/
355static int
356lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
357 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
358{
359 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
360 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
361 struct lpfc_register doorbell;
362 int put_index = hq->host_index;
363
364 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
365 return -EINVAL;
366 if (hq->host_index != dq->host_index)
367 return -EINVAL;
368 /* If the host has not yet processed the next entry then we are done */
369 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
370 return -EBUSY;
371 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
372 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
373
374 /* Update the host index to point to the next slot */
375 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
376 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
377
378 /* Ring The Header Receive Queue Doorbell */
379 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
380 doorbell.word0 = 0;
381 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
382 LPFC_RQ_POST_BATCH);
383 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
384 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
385 }
386 return put_index;
387}
388
389/**
390 * lpfc_sli4_rq_release - Updates internal hba index for RQ
391 * @q: The Header Receive Queue to operate on.
392 *
393 * This routine will update the HBA index of a queue to reflect consumption of
394 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
395 * consumed an entry the host calls this function to update the queue's
396 * internal pointers. This routine returns the number of entries that were
397 * consumed by the HBA.
398 **/
399static uint32_t
400lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
401{
402 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
403 return 0;
404 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
405 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
406 return 1;
407}
408
James Smarte59058c2008-08-24 21:49:00 -0400409/**
James Smart3621a712009-04-06 18:47:14 -0400410 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400411 * @phba: Pointer to HBA context object.
412 * @pring: Pointer to driver SLI ring object.
413 *
414 * This function returns pointer to next command iocb entry
415 * in the command ring. The caller must hold hbalock to prevent
416 * other threads consume the next command iocb.
417 * SLI-2/SLI-3 provide different sized iocbs.
418 **/
James Smarted957682007-06-17 19:56:37 -0500419static inline IOCB_t *
420lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
421{
422 return (IOCB_t *) (((char *) pring->cmdringaddr) +
423 pring->cmdidx * phba->iocb_cmd_size);
424}
425
James Smarte59058c2008-08-24 21:49:00 -0400426/**
James Smart3621a712009-04-06 18:47:14 -0400427 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400428 * @phba: Pointer to HBA context object.
429 * @pring: Pointer to driver SLI ring object.
430 *
431 * This function returns pointer to next response iocb entry
432 * in the response ring. The caller must hold hbalock to make sure
433 * that no other thread consume the next response iocb.
434 * SLI-2/SLI-3 provide different sized iocbs.
435 **/
James Smarted957682007-06-17 19:56:37 -0500436static inline IOCB_t *
437lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
438{
439 return (IOCB_t *) (((char *) pring->rspringaddr) +
440 pring->rspidx * phba->iocb_rsp_size);
441}
442
James Smarte59058c2008-08-24 21:49:00 -0400443/**
James Smart3621a712009-04-06 18:47:14 -0400444 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400445 * @phba: Pointer to HBA context object.
446 *
447 * This function is called with hbalock held. This function
448 * allocates a new driver iocb object from the iocb pool. If the
449 * allocation is successful, it returns pointer to the newly
450 * allocated iocb object else it returns NULL.
451 **/
James Smart2e0fef82007-06-17 19:56:36 -0500452static struct lpfc_iocbq *
453__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400454{
455 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
456 struct lpfc_iocbq * iocbq = NULL;
457
458 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400459
460 if (iocbq)
461 phba->iocb_cnt++;
462 if (phba->iocb_cnt > phba->iocb_max)
463 phba->iocb_max = phba->iocb_cnt;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400464 return iocbq;
465}
466
James Smarte59058c2008-08-24 21:49:00 -0400467/**
James Smartda0436e2009-05-22 14:51:39 -0400468 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
469 * @phba: Pointer to HBA context object.
470 * @xritag: XRI value.
471 *
472 * This function clears the sglq pointer from the array of acive
473 * sglq's. The xritag that is passed in is used to index into the
474 * array. Before the xritag can be used it needs to be adjusted
475 * by subtracting the xribase.
476 *
477 * Returns sglq ponter = success, NULL = Failure.
478 **/
479static struct lpfc_sglq *
480__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
481{
482 uint16_t adj_xri;
483 struct lpfc_sglq *sglq;
484 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
485 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
486 return NULL;
487 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
488 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
489 return sglq;
490}
491
492/**
493 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
494 * @phba: Pointer to HBA context object.
495 * @xritag: XRI value.
496 *
497 * This function returns the sglq pointer from the array of acive
498 * sglq's. The xritag that is passed in is used to index into the
499 * array. Before the xritag can be used it needs to be adjusted
500 * by subtracting the xribase.
501 *
502 * Returns sglq ponter = success, NULL = Failure.
503 **/
James Smart0f65ff62010-02-26 14:14:23 -0500504struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400505__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
506{
507 uint16_t adj_xri;
508 struct lpfc_sglq *sglq;
509 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
510 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
511 return NULL;
512 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
513 return sglq;
514}
515
516/**
James Smart19ca7602010-11-20 23:11:55 -0500517 * __lpfc_set_rrq_active - set RRQ active bit in the ndlp's xri_bitmap.
518 * @phba: Pointer to HBA context object.
519 * @ndlp: nodelist pointer for this target.
520 * @xritag: xri used in this exchange.
521 * @rxid: Remote Exchange ID.
522 * @send_rrq: Flag used to determine if we should send rrq els cmd.
523 *
524 * This function is called with hbalock held.
525 * The active bit is set in the ndlp's active rrq xri_bitmap. Allocates an
526 * rrq struct and adds it to the active_rrq_list.
527 *
528 * returns 0 for rrq slot for this xri
529 * < 0 Were not able to get rrq mem or invalid parameter.
530 **/
531static int
532__lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
533 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
534{
535 uint16_t adj_xri;
536 struct lpfc_node_rrq *rrq;
537 int empty;
James Smart1151e3e2011-02-16 12:39:35 -0500538 uint32_t did = 0;
539
540
541 if (!ndlp)
542 return -EINVAL;
543
544 if (!phba->cfg_enable_rrq)
545 return -EINVAL;
546
547 if (phba->pport->load_flag & FC_UNLOADING) {
548 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
549 goto out;
550 }
551 did = ndlp->nlp_DID;
James Smart19ca7602010-11-20 23:11:55 -0500552
553 /*
554 * set the active bit even if there is no mem available.
555 */
556 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
James Smart1151e3e2011-02-16 12:39:35 -0500557
558 if (NLP_CHK_FREE_REQ(ndlp))
559 goto out;
560
561 if (ndlp->vport && (ndlp->vport->load_flag & FC_UNLOADING))
562 goto out;
563
James Smart19ca7602010-11-20 23:11:55 -0500564 if (test_and_set_bit(adj_xri, ndlp->active_rrqs.xri_bitmap))
James Smart1151e3e2011-02-16 12:39:35 -0500565 goto out;
566
James Smart19ca7602010-11-20 23:11:55 -0500567 rrq = mempool_alloc(phba->rrq_pool, GFP_KERNEL);
568 if (rrq) {
569 rrq->send_rrq = send_rrq;
570 rrq->xritag = xritag;
571 rrq->rrq_stop_time = jiffies + HZ * (phba->fc_ratov + 1);
572 rrq->ndlp = ndlp;
573 rrq->nlp_DID = ndlp->nlp_DID;
574 rrq->vport = ndlp->vport;
575 rrq->rxid = rxid;
576 empty = list_empty(&phba->active_rrq_list);
James Smart1151e3e2011-02-16 12:39:35 -0500577 rrq->send_rrq = send_rrq;
James Smart19ca7602010-11-20 23:11:55 -0500578 list_add_tail(&rrq->list, &phba->active_rrq_list);
579 if (!(phba->hba_flag & HBA_RRQ_ACTIVE)) {
580 phba->hba_flag |= HBA_RRQ_ACTIVE;
581 if (empty)
582 lpfc_worker_wake_up(phba);
583 }
584 return 0;
585 }
James Smart1151e3e2011-02-16 12:39:35 -0500586out:
587 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
588 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
589 " DID:0x%x Send:%d\n",
590 xritag, rxid, did, send_rrq);
591 return -EINVAL;
James Smart19ca7602010-11-20 23:11:55 -0500592}
593
594/**
James Smart1151e3e2011-02-16 12:39:35 -0500595 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500596 * @phba: Pointer to HBA context object.
597 * @xritag: xri used in this exchange.
598 * @rrq: The RRQ to be cleared.
599 *
James Smart19ca7602010-11-20 23:11:55 -0500600 **/
James Smart1151e3e2011-02-16 12:39:35 -0500601void
602lpfc_clr_rrq_active(struct lpfc_hba *phba,
603 uint16_t xritag,
604 struct lpfc_node_rrq *rrq)
James Smart19ca7602010-11-20 23:11:55 -0500605{
606 uint16_t adj_xri;
James Smart1151e3e2011-02-16 12:39:35 -0500607 struct lpfc_nodelist *ndlp = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500608
James Smart1151e3e2011-02-16 12:39:35 -0500609 if ((rrq->vport) && NLP_CHK_NODE_ACT(rrq->ndlp))
610 ndlp = lpfc_findnode_did(rrq->vport, rrq->nlp_DID);
James Smart19ca7602010-11-20 23:11:55 -0500611
612 /* The target DID could have been swapped (cable swap)
613 * we should use the ndlp from the findnode if it is
614 * available.
615 */
James Smart1151e3e2011-02-16 12:39:35 -0500616 if ((!ndlp) && rrq->ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500617 ndlp = rrq->ndlp;
618
James Smart1151e3e2011-02-16 12:39:35 -0500619 if (!ndlp)
620 goto out;
621
James Smart19ca7602010-11-20 23:11:55 -0500622 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
623 if (test_and_clear_bit(adj_xri, ndlp->active_rrqs.xri_bitmap)) {
624 rrq->send_rrq = 0;
625 rrq->xritag = 0;
626 rrq->rrq_stop_time = 0;
627 }
James Smart1151e3e2011-02-16 12:39:35 -0500628out:
James Smart19ca7602010-11-20 23:11:55 -0500629 mempool_free(rrq, phba->rrq_pool);
630}
631
632/**
633 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
634 * @phba: Pointer to HBA context object.
635 *
636 * This function is called with hbalock held. This function
637 * Checks if stop_time (ratov from setting rrq active) has
638 * been reached, if it has and the send_rrq flag is set then
639 * it will call lpfc_send_rrq. If the send_rrq flag is not set
640 * then it will just call the routine to clear the rrq and
641 * free the rrq resource.
642 * The timer is set to the next rrq that is going to expire before
643 * leaving the routine.
644 *
645 **/
646void
647lpfc_handle_rrq_active(struct lpfc_hba *phba)
648{
649 struct lpfc_node_rrq *rrq;
650 struct lpfc_node_rrq *nextrrq;
651 unsigned long next_time;
652 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500653 LIST_HEAD(send_rrq);
James Smart19ca7602010-11-20 23:11:55 -0500654
655 spin_lock_irqsave(&phba->hbalock, iflags);
656 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
657 next_time = jiffies + HZ * (phba->fc_ratov + 1);
658 list_for_each_entry_safe(rrq, nextrrq,
James Smart1151e3e2011-02-16 12:39:35 -0500659 &phba->active_rrq_list, list) {
660 if (time_after(jiffies, rrq->rrq_stop_time))
661 list_move(&rrq->list, &send_rrq);
662 else if (time_before(rrq->rrq_stop_time, next_time))
James Smart19ca7602010-11-20 23:11:55 -0500663 next_time = rrq->rrq_stop_time;
664 }
665 spin_unlock_irqrestore(&phba->hbalock, iflags);
666 if (!list_empty(&phba->active_rrq_list))
667 mod_timer(&phba->rrq_tmr, next_time);
James Smart1151e3e2011-02-16 12:39:35 -0500668 list_for_each_entry_safe(rrq, nextrrq, &send_rrq, list) {
669 list_del(&rrq->list);
670 if (!rrq->send_rrq)
671 /* this call will free the rrq */
672 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
673 else if (lpfc_send_rrq(phba, rrq)) {
674 /* if we send the rrq then the completion handler
675 * will clear the bit in the xribitmap.
676 */
677 lpfc_clr_rrq_active(phba, rrq->xritag,
678 rrq);
679 }
680 }
James Smart19ca7602010-11-20 23:11:55 -0500681}
682
683/**
684 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
685 * @vport: Pointer to vport context object.
686 * @xri: The xri used in the exchange.
687 * @did: The targets DID for this exchange.
688 *
689 * returns NULL = rrq not found in the phba->active_rrq_list.
690 * rrq = rrq for this xri and target.
691 **/
692struct lpfc_node_rrq *
693lpfc_get_active_rrq(struct lpfc_vport *vport, uint16_t xri, uint32_t did)
694{
695 struct lpfc_hba *phba = vport->phba;
696 struct lpfc_node_rrq *rrq;
697 struct lpfc_node_rrq *nextrrq;
698 unsigned long iflags;
699
700 if (phba->sli_rev != LPFC_SLI_REV4)
701 return NULL;
702 spin_lock_irqsave(&phba->hbalock, iflags);
703 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list) {
704 if (rrq->vport == vport && rrq->xritag == xri &&
705 rrq->nlp_DID == did){
706 list_del(&rrq->list);
707 spin_unlock_irqrestore(&phba->hbalock, iflags);
708 return rrq;
709 }
710 }
711 spin_unlock_irqrestore(&phba->hbalock, iflags);
712 return NULL;
713}
714
715/**
716 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
717 * @vport: Pointer to vport context object.
James Smart1151e3e2011-02-16 12:39:35 -0500718 * @ndlp: Pointer to the lpfc_node_list structure.
719 * If ndlp is NULL Remove all active RRQs for this vport from the
720 * phba->active_rrq_list and clear the rrq.
721 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
James Smart19ca7602010-11-20 23:11:55 -0500722 **/
723void
James Smart1151e3e2011-02-16 12:39:35 -0500724lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
James Smart19ca7602010-11-20 23:11:55 -0500725
726{
727 struct lpfc_hba *phba = vport->phba;
728 struct lpfc_node_rrq *rrq;
729 struct lpfc_node_rrq *nextrrq;
730 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500731 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500732
733 if (phba->sli_rev != LPFC_SLI_REV4)
734 return;
James Smart1151e3e2011-02-16 12:39:35 -0500735 if (!ndlp) {
736 lpfc_sli4_vport_delete_els_xri_aborted(vport);
737 lpfc_sli4_vport_delete_fcp_xri_aborted(vport);
James Smart19ca7602010-11-20 23:11:55 -0500738 }
James Smart1151e3e2011-02-16 12:39:35 -0500739 spin_lock_irqsave(&phba->hbalock, iflags);
740 list_for_each_entry_safe(rrq, nextrrq, &phba->active_rrq_list, list)
741 if ((rrq->vport == vport) && (!ndlp || rrq->ndlp == ndlp))
742 list_move(&rrq->list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500743 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500744
745 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
746 list_del(&rrq->list);
747 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
748 }
James Smart19ca7602010-11-20 23:11:55 -0500749}
750
751/**
752 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
753 * @phba: Pointer to HBA context object.
754 *
755 * Remove all rrqs from the phba->active_rrq_list and free them by
756 * calling __lpfc_clr_active_rrq
757 *
758 **/
759void
760lpfc_cleanup_wt_rrqs(struct lpfc_hba *phba)
761{
762 struct lpfc_node_rrq *rrq;
763 struct lpfc_node_rrq *nextrrq;
764 unsigned long next_time;
765 unsigned long iflags;
James Smart1151e3e2011-02-16 12:39:35 -0500766 LIST_HEAD(rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500767
768 if (phba->sli_rev != LPFC_SLI_REV4)
769 return;
770 spin_lock_irqsave(&phba->hbalock, iflags);
771 phba->hba_flag &= ~HBA_RRQ_ACTIVE;
772 next_time = jiffies + HZ * (phba->fc_ratov * 2);
James Smart1151e3e2011-02-16 12:39:35 -0500773 list_splice_init(&phba->active_rrq_list, &rrq_list);
James Smart19ca7602010-11-20 23:11:55 -0500774 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart1151e3e2011-02-16 12:39:35 -0500775
776 list_for_each_entry_safe(rrq, nextrrq, &rrq_list, list) {
777 list_del(&rrq->list);
778 lpfc_clr_rrq_active(phba, rrq->xritag, rrq);
779 }
James Smart19ca7602010-11-20 23:11:55 -0500780 if (!list_empty(&phba->active_rrq_list))
781 mod_timer(&phba->rrq_tmr, next_time);
782}
783
784
785/**
James Smart1151e3e2011-02-16 12:39:35 -0500786 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
James Smart19ca7602010-11-20 23:11:55 -0500787 * @phba: Pointer to HBA context object.
788 * @ndlp: Targets nodelist pointer for this exchange.
789 * @xritag the xri in the bitmap to test.
790 *
791 * This function is called with hbalock held. This function
792 * returns 0 = rrq not active for this xri
793 * 1 = rrq is valid for this xri.
794 **/
James Smart1151e3e2011-02-16 12:39:35 -0500795int
796lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
James Smart19ca7602010-11-20 23:11:55 -0500797 uint16_t xritag)
798{
799 uint16_t adj_xri;
800
801 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
802 if (!ndlp)
803 return 0;
804 if (test_bit(adj_xri, ndlp->active_rrqs.xri_bitmap))
805 return 1;
806 else
807 return 0;
808}
809
810/**
811 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
812 * @phba: Pointer to HBA context object.
813 * @ndlp: nodelist pointer for this target.
814 * @xritag: xri used in this exchange.
815 * @rxid: Remote Exchange ID.
816 * @send_rrq: Flag used to determine if we should send rrq els cmd.
817 *
818 * This function takes the hbalock.
819 * The active bit is always set in the active rrq xri_bitmap even
820 * if there is no slot avaiable for the other rrq information.
821 *
822 * returns 0 rrq actived for this xri
823 * < 0 No memory or invalid ndlp.
824 **/
825int
826lpfc_set_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
827 uint16_t xritag, uint16_t rxid, uint16_t send_rrq)
828{
829 int ret;
830 unsigned long iflags;
831
832 spin_lock_irqsave(&phba->hbalock, iflags);
833 ret = __lpfc_set_rrq_active(phba, ndlp, xritag, rxid, send_rrq);
834 spin_unlock_irqrestore(&phba->hbalock, iflags);
835 return ret;
836}
837
838/**
James Smartda0436e2009-05-22 14:51:39 -0400839 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
840 * @phba: Pointer to HBA context object.
James Smart19ca7602010-11-20 23:11:55 -0500841 * @piocb: Pointer to the iocbq.
James Smartda0436e2009-05-22 14:51:39 -0400842 *
843 * This function is called with hbalock held. This function
844 * Gets a new driver sglq object from the sglq list. If the
845 * list is not empty then it is successful, it returns pointer to the newly
846 * allocated sglq object else it returns NULL.
847 **/
848static struct lpfc_sglq *
James Smart19ca7602010-11-20 23:11:55 -0500849__lpfc_sli_get_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
James Smartda0436e2009-05-22 14:51:39 -0400850{
851 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
852 struct lpfc_sglq *sglq = NULL;
James Smart19ca7602010-11-20 23:11:55 -0500853 struct lpfc_sglq *start_sglq = NULL;
James Smartda0436e2009-05-22 14:51:39 -0400854 uint16_t adj_xri;
James Smart19ca7602010-11-20 23:11:55 -0500855 struct lpfc_scsi_buf *lpfc_cmd;
856 struct lpfc_nodelist *ndlp;
857 int found = 0;
858
859 if (piocbq->iocb_flag & LPFC_IO_FCP) {
860 lpfc_cmd = (struct lpfc_scsi_buf *) piocbq->context1;
861 ndlp = lpfc_cmd->rdata->pnode;
James Smartbe858b62010-12-15 17:57:20 -0500862 } else if ((piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) &&
863 !(piocbq->iocb_flag & LPFC_IO_LIBDFC))
James Smart19ca7602010-11-20 23:11:55 -0500864 ndlp = piocbq->context_un.ndlp;
James Smart19ca7602010-11-20 23:11:55 -0500865 else
866 ndlp = piocbq->context1;
867
James Smartda0436e2009-05-22 14:51:39 -0400868 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
James Smart19ca7602010-11-20 23:11:55 -0500869 start_sglq = sglq;
870 while (!found) {
871 if (!sglq)
872 return NULL;
873 adj_xri = sglq->sli4_xritag -
874 phba->sli4_hba.max_cfg_param.xri_base;
James Smart1151e3e2011-02-16 12:39:35 -0500875 if (lpfc_test_rrq_active(phba, ndlp, sglq->sli4_xritag)) {
James Smart19ca7602010-11-20 23:11:55 -0500876 /* This xri has an rrq outstanding for this DID.
877 * put it back in the list and get another xri.
878 */
879 list_add_tail(&sglq->list, lpfc_sgl_list);
880 sglq = NULL;
881 list_remove_head(lpfc_sgl_list, sglq,
882 struct lpfc_sglq, list);
883 if (sglq == start_sglq) {
884 sglq = NULL;
885 break;
886 } else
887 continue;
888 }
889 sglq->ndlp = ndlp;
890 found = 1;
891 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
892 sglq->state = SGL_ALLOCATED;
893 }
James Smartda0436e2009-05-22 14:51:39 -0400894 return sglq;
895}
896
897/**
James Smart3621a712009-04-06 18:47:14 -0400898 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400899 * @phba: Pointer to HBA context object.
900 *
901 * This function is called with no lock held. This function
902 * allocates a new driver iocb object from the iocb pool. If the
903 * allocation is successful, it returns pointer to the newly
904 * allocated iocb object else it returns NULL.
905 **/
James Smart2e0fef82007-06-17 19:56:36 -0500906struct lpfc_iocbq *
907lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500908{
James Smart2e0fef82007-06-17 19:56:36 -0500909 struct lpfc_iocbq * iocbq = NULL;
910 unsigned long iflags;
911
912 spin_lock_irqsave(&phba->hbalock, iflags);
913 iocbq = __lpfc_sli_get_iocbq(phba);
914 spin_unlock_irqrestore(&phba->hbalock, iflags);
915 return iocbq;
916}
917
James Smarte59058c2008-08-24 21:49:00 -0400918/**
James Smart4f774512009-05-22 14:52:35 -0400919 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
920 * @phba: Pointer to HBA context object.
921 * @iocbq: Pointer to driver iocb object.
922 *
923 * This function is called with hbalock held to release driver
924 * iocb object to the iocb pool. The iotag in the iocb object
925 * does not change for each use of the iocb object. This function
926 * clears all other fields of the iocb object when it is freed.
927 * The sqlq structure that holds the xritag and phys and virtual
928 * mappings for the scatter gather list is retrieved from the
929 * active array of sglq. The get of the sglq pointer also clears
930 * the entry in the array. If the status of the IO indiactes that
931 * this IO was aborted then the sglq entry it put on the
932 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
933 * IO has good status or fails for any other reason then the sglq
934 * entry is added to the free list (lpfc_sgl_list).
935 **/
936static void
937__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
938{
939 struct lpfc_sglq *sglq;
940 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
James Smart2a9bf3d2010-06-07 15:24:45 -0400941 unsigned long iflag = 0;
942 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart4f774512009-05-22 14:52:35 -0400943
944 if (iocbq->sli4_xritag == NO_XRI)
945 sglq = NULL;
946 else
947 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
948 if (sglq) {
James Smart0f65ff62010-02-26 14:14:23 -0500949 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
950 (sglq->state != SGL_XRI_ABORTED)) {
James Smart4f774512009-05-22 14:52:35 -0400951 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
952 iflag);
953 list_add(&sglq->list,
954 &phba->sli4_hba.lpfc_abts_els_sgl_list);
955 spin_unlock_irqrestore(
956 &phba->sli4_hba.abts_sgl_list_lock, iflag);
James Smart0f65ff62010-02-26 14:14:23 -0500957 } else {
958 sglq->state = SGL_FREED;
James Smart19ca7602010-11-20 23:11:55 -0500959 sglq->ndlp = NULL;
James Smartfedd3b72011-02-16 12:39:24 -0500960 list_add_tail(&sglq->list,
961 &phba->sli4_hba.lpfc_sgl_list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400962
963 /* Check if TXQ queue needs to be serviced */
James Smart589a52d2010-07-14 15:30:54 -0400964 if (pring->txq_cnt)
James Smart2a9bf3d2010-06-07 15:24:45 -0400965 lpfc_worker_wake_up(phba);
James Smart0f65ff62010-02-26 14:14:23 -0500966 }
James Smart4f774512009-05-22 14:52:35 -0400967 }
968
969
970 /*
971 * Clean all volatile data fields, preserve iotag and node struct.
972 */
973 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
974 iocbq->sli4_xritag = NO_XRI;
975 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
976}
977
James Smart2a9bf3d2010-06-07 15:24:45 -0400978
James Smart4f774512009-05-22 14:52:35 -0400979/**
James Smart3772a992009-05-22 14:50:54 -0400980 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
981 * @phba: Pointer to HBA context object.
982 * @iocbq: Pointer to driver iocb object.
983 *
984 * This function is called with hbalock held to release driver
985 * iocb object to the iocb pool. The iotag in the iocb object
986 * does not change for each use of the iocb object. This function
987 * clears all other fields of the iocb object when it is freed.
988 **/
989static void
990__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
991{
992 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
993
994 /*
995 * Clean all volatile data fields, preserve iotag and node struct.
996 */
997 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
998 iocbq->sli4_xritag = NO_XRI;
999 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
1000}
1001
1002/**
James Smart3621a712009-04-06 18:47:14 -04001003 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001004 * @phba: Pointer to HBA context object.
1005 * @iocbq: Pointer to driver iocb object.
1006 *
1007 * This function is called with hbalock held to release driver
1008 * iocb object to the iocb pool. The iotag in the iocb object
1009 * does not change for each use of the iocb object. This function
1010 * clears all other fields of the iocb object when it is freed.
1011 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001012static void
James Smart2e0fef82007-06-17 19:56:36 -05001013__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1014{
James Smart3772a992009-05-22 14:50:54 -04001015 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001016 phba->iocb_cnt--;
James Bottomley604a3e32005-10-29 10:28:33 -05001017}
1018
James Smarte59058c2008-08-24 21:49:00 -04001019/**
James Smart3621a712009-04-06 18:47:14 -04001020 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -04001021 * @phba: Pointer to HBA context object.
1022 * @iocbq: Pointer to driver iocb object.
1023 *
1024 * This function is called with no lock held to release the iocb to
1025 * iocb pool.
1026 **/
James Smart2e0fef82007-06-17 19:56:36 -05001027void
1028lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
1029{
1030 unsigned long iflags;
1031
1032 /*
1033 * Clean all volatile data fields, preserve iotag and node struct.
1034 */
1035 spin_lock_irqsave(&phba->hbalock, iflags);
1036 __lpfc_sli_release_iocbq(phba, iocbq);
1037 spin_unlock_irqrestore(&phba->hbalock, iflags);
1038}
1039
James Smarte59058c2008-08-24 21:49:00 -04001040/**
James Smarta257bf92009-04-06 18:48:10 -04001041 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1042 * @phba: Pointer to HBA context object.
1043 * @iocblist: List of IOCBs.
1044 * @ulpstatus: ULP status in IOCB command field.
1045 * @ulpWord4: ULP word-4 in IOCB command field.
1046 *
1047 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1048 * on the list by invoking the complete callback function associated with the
1049 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1050 * fields.
1051 **/
1052void
1053lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
1054 uint32_t ulpstatus, uint32_t ulpWord4)
1055{
1056 struct lpfc_iocbq *piocb;
1057
1058 while (!list_empty(iocblist)) {
1059 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
1060
1061 if (!piocb->iocb_cmpl)
1062 lpfc_sli_release_iocbq(phba, piocb);
1063 else {
1064 piocb->iocb.ulpStatus = ulpstatus;
1065 piocb->iocb.un.ulpWord[4] = ulpWord4;
1066 (piocb->iocb_cmpl) (phba, piocb, piocb);
1067 }
1068 }
1069 return;
1070}
1071
1072/**
James Smart3621a712009-04-06 18:47:14 -04001073 * lpfc_sli_iocb_cmd_type - Get the iocb type
1074 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -04001075 *
1076 * This function is called by ring event handler function to get the iocb type.
1077 * This function translates the iocb command to an iocb command type used to
1078 * decide the final disposition of each completed IOCB.
1079 * The function returns
1080 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1081 * LPFC_SOL_IOCB if it is a solicited iocb completion
1082 * LPFC_ABORT_IOCB if it is an abort iocb
1083 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1084 *
1085 * The caller is not required to hold any lock.
1086 **/
dea31012005-04-17 16:05:31 -05001087static lpfc_iocb_type
1088lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
1089{
1090 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
1091
1092 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
1093 return 0;
1094
1095 switch (iocb_cmnd) {
1096 case CMD_XMIT_SEQUENCE_CR:
1097 case CMD_XMIT_SEQUENCE_CX:
1098 case CMD_XMIT_BCAST_CN:
1099 case CMD_XMIT_BCAST_CX:
1100 case CMD_ELS_REQUEST_CR:
1101 case CMD_ELS_REQUEST_CX:
1102 case CMD_CREATE_XRI_CR:
1103 case CMD_CREATE_XRI_CX:
1104 case CMD_GET_RPI_CN:
1105 case CMD_XMIT_ELS_RSP_CX:
1106 case CMD_GET_RPI_CR:
1107 case CMD_FCP_IWRITE_CR:
1108 case CMD_FCP_IWRITE_CX:
1109 case CMD_FCP_IREAD_CR:
1110 case CMD_FCP_IREAD_CX:
1111 case CMD_FCP_ICMND_CR:
1112 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -05001113 case CMD_FCP_TSEND_CX:
1114 case CMD_FCP_TRSP_CX:
1115 case CMD_FCP_TRECEIVE_CX:
1116 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -05001117 case CMD_ADAPTER_MSG:
1118 case CMD_ADAPTER_DUMP:
1119 case CMD_XMIT_SEQUENCE64_CR:
1120 case CMD_XMIT_SEQUENCE64_CX:
1121 case CMD_XMIT_BCAST64_CN:
1122 case CMD_XMIT_BCAST64_CX:
1123 case CMD_ELS_REQUEST64_CR:
1124 case CMD_ELS_REQUEST64_CX:
1125 case CMD_FCP_IWRITE64_CR:
1126 case CMD_FCP_IWRITE64_CX:
1127 case CMD_FCP_IREAD64_CR:
1128 case CMD_FCP_IREAD64_CX:
1129 case CMD_FCP_ICMND64_CR:
1130 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -05001131 case CMD_FCP_TSEND64_CX:
1132 case CMD_FCP_TRSP64_CX:
1133 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -05001134 case CMD_GEN_REQUEST64_CR:
1135 case CMD_GEN_REQUEST64_CX:
1136 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -04001137 case DSSCMD_IWRITE64_CR:
1138 case DSSCMD_IWRITE64_CX:
1139 case DSSCMD_IREAD64_CR:
1140 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -05001141 type = LPFC_SOL_IOCB;
1142 break;
1143 case CMD_ABORT_XRI_CN:
1144 case CMD_ABORT_XRI_CX:
1145 case CMD_CLOSE_XRI_CN:
1146 case CMD_CLOSE_XRI_CX:
1147 case CMD_XRI_ABORTED_CX:
1148 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -04001149 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -05001150 type = LPFC_ABORT_IOCB;
1151 break;
1152 case CMD_RCV_SEQUENCE_CX:
1153 case CMD_RCV_ELS_REQ_CX:
1154 case CMD_RCV_SEQUENCE64_CX:
1155 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -04001156 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -05001157 case CMD_IOCB_RCV_SEQ64_CX:
1158 case CMD_IOCB_RCV_ELS64_CX:
1159 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -05001160 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -05001161 type = LPFC_UNSOL_IOCB;
1162 break;
James Smart3163f722008-02-08 18:50:25 -05001163 case CMD_IOCB_XMIT_MSEQ64_CR:
1164 case CMD_IOCB_XMIT_MSEQ64_CX:
1165 case CMD_IOCB_RCV_SEQ_LIST64_CX:
1166 case CMD_IOCB_RCV_ELS_LIST64_CX:
1167 case CMD_IOCB_CLOSE_EXTENDED_CN:
1168 case CMD_IOCB_ABORT_EXTENDED_CN:
1169 case CMD_IOCB_RET_HBQE64_CN:
1170 case CMD_IOCB_FCP_IBIDIR64_CR:
1171 case CMD_IOCB_FCP_IBIDIR64_CX:
1172 case CMD_IOCB_FCP_ITASKMGT64_CX:
1173 case CMD_IOCB_LOGENTRY_CN:
1174 case CMD_IOCB_LOGENTRY_ASYNC_CN:
1175 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07001176 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -05001177 type = LPFC_UNKNOWN_IOCB;
1178 break;
dea31012005-04-17 16:05:31 -05001179 default:
1180 type = LPFC_UNKNOWN_IOCB;
1181 break;
1182 }
1183
1184 return type;
1185}
1186
James Smarte59058c2008-08-24 21:49:00 -04001187/**
James Smart3621a712009-04-06 18:47:14 -04001188 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -04001189 * @phba: Pointer to HBA context object.
1190 *
1191 * This function is called from SLI initialization code
1192 * to configure every ring of the HBA's SLI interface. The
1193 * caller is not required to hold any lock. This function issues
1194 * a config_ring mailbox command for each ring.
1195 * This function returns zero if successful else returns a negative
1196 * error code.
1197 **/
dea31012005-04-17 16:05:31 -05001198static int
James Smarted957682007-06-17 19:56:37 -05001199lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001200{
1201 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -05001202 LPFC_MBOXQ_t *pmb;
1203 MAILBOX_t *pmbox;
1204 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -05001205
James Smarted957682007-06-17 19:56:37 -05001206 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
1207 if (!pmb)
1208 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -04001209 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05001210 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05001211 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -05001212 lpfc_config_ring(phba, i, pmb);
1213 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
1214 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -05001215 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04001216 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -05001217 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1218 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001219 rc, pmbox->mbxCommand,
1220 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -05001221 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05001222 ret = -ENXIO;
1223 break;
dea31012005-04-17 16:05:31 -05001224 }
1225 }
James Smarted957682007-06-17 19:56:37 -05001226 mempool_free(pmb, phba->mbox_mem_pool);
1227 return ret;
dea31012005-04-17 16:05:31 -05001228}
1229
James Smarte59058c2008-08-24 21:49:00 -04001230/**
James Smart3621a712009-04-06 18:47:14 -04001231 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -04001232 * @phba: Pointer to HBA context object.
1233 * @pring: Pointer to driver SLI ring object.
1234 * @piocb: Pointer to the driver iocb object.
1235 *
1236 * This function is called with hbalock held. The function adds the
1237 * new iocb to txcmplq of the given ring. This function always returns
1238 * 0. If this function is called for ELS ring, this function checks if
1239 * there is a vport associated with the ELS command. This function also
1240 * starts els_tmofunc timer if this is an ELS command.
1241 **/
dea31012005-04-17 16:05:31 -05001242static int
James Smart2e0fef82007-06-17 19:56:36 -05001243lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1244 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05001245{
dea31012005-04-17 16:05:31 -05001246 list_add_tail(&piocb->list, &pring->txcmplq);
James Smart2a9bf3d2010-06-07 15:24:45 -04001247 piocb->iocb_flag |= LPFC_IO_ON_Q;
dea31012005-04-17 16:05:31 -05001248 pring->txcmplq_cnt++;
James Smart2a9bf3d2010-06-07 15:24:45 -04001249 if (pring->txcmplq_cnt > pring->txcmplq_max)
1250 pring->txcmplq_max = pring->txcmplq_cnt;
1251
James Smart92d7f7b2007-06-17 19:56:38 -05001252 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
1253 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
1254 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
1255 if (!piocb->vport)
1256 BUG();
1257 else
1258 mod_timer(&piocb->vport->els_tmofunc,
1259 jiffies + HZ * (phba->fc_ratov << 1));
1260 }
1261
dea31012005-04-17 16:05:31 -05001262
James Smart2e0fef82007-06-17 19:56:36 -05001263 return 0;
dea31012005-04-17 16:05:31 -05001264}
1265
James Smarte59058c2008-08-24 21:49:00 -04001266/**
James Smart3621a712009-04-06 18:47:14 -04001267 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -04001268 * @phba: Pointer to HBA context object.
1269 * @pring: Pointer to driver SLI ring object.
1270 *
1271 * This function is called with hbalock held to get next
1272 * iocb in txq of the given ring. If there is any iocb in
1273 * the txq, the function returns first iocb in the list after
1274 * removing the iocb from the list, else it returns NULL.
1275 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04001276struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05001277lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001278{
dea31012005-04-17 16:05:31 -05001279 struct lpfc_iocbq *cmd_iocb;
1280
James Smart858c9f62007-06-17 19:56:39 -05001281 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
1282 if (cmd_iocb != NULL)
dea31012005-04-17 16:05:31 -05001283 pring->txq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05001284 return cmd_iocb;
dea31012005-04-17 16:05:31 -05001285}
1286
James Smarte59058c2008-08-24 21:49:00 -04001287/**
James Smart3621a712009-04-06 18:47:14 -04001288 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -04001289 * @phba: Pointer to HBA context object.
1290 * @pring: Pointer to driver SLI ring object.
1291 *
1292 * This function is called with hbalock held and the caller must post the
1293 * iocb without releasing the lock. If the caller releases the lock,
1294 * iocb slot returned by the function is not guaranteed to be available.
1295 * The function returns pointer to the next available iocb slot if there
1296 * is available slot in the ring, else it returns NULL.
1297 * If the get index of the ring is ahead of the put index, the function
1298 * will post an error attention event to the worker thread to take the
1299 * HBA to offline state.
1300 **/
dea31012005-04-17 16:05:31 -05001301static IOCB_t *
1302lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
1303{
James Smart34b02dc2008-08-24 21:49:55 -04001304 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05001305 uint32_t max_cmd_idx = pring->numCiocb;
dea31012005-04-17 16:05:31 -05001306 if ((pring->next_cmdidx == pring->cmdidx) &&
1307 (++pring->next_cmdidx >= max_cmd_idx))
1308 pring->next_cmdidx = 0;
1309
1310 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
1311
1312 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
1313
1314 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
1315 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001316 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02001317 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04001318 pring->ringno,
dea31012005-04-17 16:05:31 -05001319 pring->local_getidx, max_cmd_idx);
1320
James Smart2e0fef82007-06-17 19:56:36 -05001321 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001322 /*
1323 * All error attention handlers are posted to
1324 * worker thread
1325 */
1326 phba->work_ha |= HA_ERATT;
1327 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05001328
James Smart5e9d9b82008-06-14 22:52:53 -04001329 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05001330
1331 return NULL;
1332 }
1333
1334 if (pring->local_getidx == pring->next_cmdidx)
1335 return NULL;
1336 }
1337
James Smarted957682007-06-17 19:56:37 -05001338 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -05001339}
1340
James Smarte59058c2008-08-24 21:49:00 -04001341/**
James Smart3621a712009-04-06 18:47:14 -04001342 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -04001343 * @phba: Pointer to HBA context object.
1344 * @iocbq: Pointer to driver iocb object.
1345 *
1346 * This function gets an iotag for the iocb. If there is no unused iotag and
1347 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1348 * array and assigns a new iotag.
1349 * The function returns the allocated iotag if successful, else returns zero.
1350 * Zero is not a valid iotag.
1351 * The caller is not required to hold any lock.
1352 **/
James Bottomley604a3e32005-10-29 10:28:33 -05001353uint16_t
James Smart2e0fef82007-06-17 19:56:36 -05001354lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -05001355{
James Smart2e0fef82007-06-17 19:56:36 -05001356 struct lpfc_iocbq **new_arr;
1357 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -05001358 size_t new_len;
1359 struct lpfc_sli *psli = &phba->sli;
1360 uint16_t iotag;
dea31012005-04-17 16:05:31 -05001361
James Smart2e0fef82007-06-17 19:56:36 -05001362 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001363 iotag = psli->last_iotag;
1364 if(++iotag < psli->iocbq_lookup_len) {
1365 psli->last_iotag = iotag;
1366 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001367 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001368 iocbq->iotag = iotag;
1369 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -05001370 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -05001371 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1372 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -05001373 spin_unlock_irq(&phba->hbalock);
1374 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -05001375 GFP_KERNEL);
1376 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -05001377 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001378 old_arr = psli->iocbq_lookup;
1379 if (new_len <= psli->iocbq_lookup_len) {
1380 /* highly unprobable case */
1381 kfree(new_arr);
1382 iotag = psli->last_iotag;
1383 if(++iotag < psli->iocbq_lookup_len) {
1384 psli->last_iotag = iotag;
1385 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001386 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001387 iocbq->iotag = iotag;
1388 return iotag;
1389 }
James Smart2e0fef82007-06-17 19:56:36 -05001390 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001391 return 0;
1392 }
1393 if (psli->iocbq_lookup)
1394 memcpy(new_arr, old_arr,
1395 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001396 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001397 psli->iocbq_lookup = new_arr;
1398 psli->iocbq_lookup_len = new_len;
1399 psli->last_iotag = iotag;
1400 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001401 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001402 iocbq->iotag = iotag;
1403 kfree(old_arr);
1404 return iotag;
1405 }
James Smart8f6d98d2006-08-01 07:34:00 -04001406 } else
James Smart2e0fef82007-06-17 19:56:36 -05001407 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001408
James Smartbc739052010-08-04 16:11:18 -04001409 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001410 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1411 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001412
James Bottomley604a3e32005-10-29 10:28:33 -05001413 return 0;
dea31012005-04-17 16:05:31 -05001414}
1415
James Smarte59058c2008-08-24 21:49:00 -04001416/**
James Smart3621a712009-04-06 18:47:14 -04001417 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001418 * @phba: Pointer to HBA context object.
1419 * @pring: Pointer to driver SLI ring object.
1420 * @iocb: Pointer to iocb slot in the ring.
1421 * @nextiocb: Pointer to driver iocb object which need to be
1422 * posted to firmware.
1423 *
1424 * This function is called with hbalock held to post a new iocb to
1425 * the firmware. This function copies the new iocb to ring iocb slot and
1426 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1427 * a completion call back for this iocb else the function will free the
1428 * iocb object.
1429 **/
dea31012005-04-17 16:05:31 -05001430static void
1431lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1432 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1433{
1434 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001435 * Set up an iotag
dea31012005-04-17 16:05:31 -05001436 */
James Bottomley604a3e32005-10-29 10:28:33 -05001437 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001438
James Smarte2a0a9d2008-12-04 22:40:02 -05001439
James Smarta58cbd52007-08-02 11:09:43 -04001440 if (pring->ringno == LPFC_ELS_RING) {
1441 lpfc_debugfs_slow_ring_trc(phba,
1442 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1443 *(((uint32_t *) &nextiocb->iocb) + 4),
1444 *(((uint32_t *) &nextiocb->iocb) + 6),
1445 *(((uint32_t *) &nextiocb->iocb) + 7));
1446 }
1447
dea31012005-04-17 16:05:31 -05001448 /*
1449 * Issue iocb command to adapter
1450 */
James Smart92d7f7b2007-06-17 19:56:38 -05001451 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001452 wmb();
1453 pring->stats.iocb_cmd++;
1454
1455 /*
1456 * If there is no completion routine to call, we can release the
1457 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1458 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1459 */
1460 if (nextiocb->iocb_cmpl)
1461 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001462 else
James Smart2e0fef82007-06-17 19:56:36 -05001463 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001464
1465 /*
1466 * Let the HBA know what IOCB slot will be the next one the
1467 * driver will put a command into.
1468 */
1469 pring->cmdidx = pring->next_cmdidx;
James Smarted957682007-06-17 19:56:37 -05001470 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001471}
1472
James Smarte59058c2008-08-24 21:49:00 -04001473/**
James Smart3621a712009-04-06 18:47:14 -04001474 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001475 * @phba: Pointer to HBA context object.
1476 * @pring: Pointer to driver SLI ring object.
1477 *
1478 * The caller is not required to hold any lock for calling this function.
1479 * This function updates the chip attention bits for the ring to inform firmware
1480 * that there are pending work to be done for this ring and requests an
1481 * interrupt when there is space available in the ring. This function is
1482 * called when the driver is unable to post more iocbs to the ring due
1483 * to unavailability of space in the ring.
1484 **/
dea31012005-04-17 16:05:31 -05001485static void
James Smart2e0fef82007-06-17 19:56:36 -05001486lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001487{
1488 int ringno = pring->ringno;
1489
1490 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1491
1492 wmb();
1493
1494 /*
1495 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1496 * The HBA will tell us when an IOCB entry is available.
1497 */
1498 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1499 readl(phba->CAregaddr); /* flush */
1500
1501 pring->stats.iocb_cmd_full++;
1502}
1503
James Smarte59058c2008-08-24 21:49:00 -04001504/**
James Smart3621a712009-04-06 18:47:14 -04001505 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001506 * @phba: Pointer to HBA context object.
1507 * @pring: Pointer to driver SLI ring object.
1508 *
1509 * This function updates the chip attention register bit for the
1510 * given ring to inform HBA that there is more work to be done
1511 * in this ring. The caller is not required to hold any lock.
1512 **/
dea31012005-04-17 16:05:31 -05001513static void
James Smart2e0fef82007-06-17 19:56:36 -05001514lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001515{
1516 int ringno = pring->ringno;
1517
1518 /*
1519 * Tell the HBA that there is work to do in this ring.
1520 */
James Smart34b02dc2008-08-24 21:49:55 -04001521 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1522 wmb();
1523 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1524 readl(phba->CAregaddr); /* flush */
1525 }
dea31012005-04-17 16:05:31 -05001526}
1527
James Smarte59058c2008-08-24 21:49:00 -04001528/**
James Smart3621a712009-04-06 18:47:14 -04001529 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001530 * @phba: Pointer to HBA context object.
1531 * @pring: Pointer to driver SLI ring object.
1532 *
1533 * This function is called with hbalock held to post pending iocbs
1534 * in the txq to the firmware. This function is called when driver
1535 * detects space available in the ring.
1536 **/
dea31012005-04-17 16:05:31 -05001537static void
James Smart2e0fef82007-06-17 19:56:36 -05001538lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001539{
1540 IOCB_t *iocb;
1541 struct lpfc_iocbq *nextiocb;
1542
1543 /*
1544 * Check to see if:
1545 * (a) there is anything on the txq to send
1546 * (b) link is up
1547 * (c) link attention events can be processed (fcp ring only)
1548 * (d) IOCB processing is not blocked by the outstanding mbox command.
1549 */
1550 if (pring->txq_cnt &&
James Smart2e0fef82007-06-17 19:56:36 -05001551 lpfc_is_link_up(phba) &&
dea31012005-04-17 16:05:31 -05001552 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001553 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001554
1555 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1556 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1557 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1558
1559 if (iocb)
1560 lpfc_sli_update_ring(phba, pring);
1561 else
1562 lpfc_sli_update_full_ring(phba, pring);
1563 }
1564
1565 return;
1566}
1567
James Smarte59058c2008-08-24 21:49:00 -04001568/**
James Smart3621a712009-04-06 18:47:14 -04001569 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001570 * @phba: Pointer to HBA context object.
1571 * @hbqno: HBQ number.
1572 *
1573 * This function is called with hbalock held to get the next
1574 * available slot for the given HBQ. If there is free slot
1575 * available for the HBQ it will return pointer to the next available
1576 * HBQ entry else it will return NULL.
1577 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001578static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001579lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1580{
1581 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1582
1583 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1584 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1585 hbqp->next_hbqPutIdx = 0;
1586
1587 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001588 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001589 uint32_t getidx = le32_to_cpu(raw_index);
1590
1591 hbqp->local_hbqGetIdx = getidx;
1592
1593 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1594 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001595 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001596 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001597 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001598 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001599 hbqp->entry_count);
1600
1601 phba->link_state = LPFC_HBA_ERROR;
1602 return NULL;
1603 }
1604
1605 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1606 return NULL;
1607 }
1608
James Smart51ef4c22007-08-02 11:10:31 -04001609 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1610 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001611}
1612
James Smarte59058c2008-08-24 21:49:00 -04001613/**
James Smart3621a712009-04-06 18:47:14 -04001614 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001615 * @phba: Pointer to HBA context object.
1616 *
1617 * This function is called with no lock held to free all the
1618 * hbq buffers while uninitializing the SLI interface. It also
1619 * frees the HBQ buffers returned by the firmware but not yet
1620 * processed by the upper layers.
1621 **/
James Smarted957682007-06-17 19:56:37 -05001622void
1623lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1624{
James Smart92d7f7b2007-06-17 19:56:38 -05001625 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1626 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001627 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001628 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001629 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001630
James Smart51ef4c22007-08-02 11:10:31 -04001631 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001632 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001633 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001634 for (i = 0; i < hbq_count; ++i) {
1635 list_for_each_entry_safe(dmabuf, next_dmabuf,
1636 &phba->hbqs[i].hbq_buffer_list, list) {
1637 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1638 list_del(&hbq_buf->dbuf.list);
1639 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1640 }
James Smarta8adb832007-10-27 13:37:53 -04001641 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001642 }
James Smart3163f722008-02-08 18:50:25 -05001643 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001644 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1645 list) {
James Smart3163f722008-02-08 18:50:25 -05001646 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1647 list_del(&hbq_buf->dbuf.list);
1648 if (hbq_buf->tag == -1) {
1649 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1650 (phba, hbq_buf);
1651 } else {
1652 hbqno = hbq_buf->tag >> 16;
1653 if (hbqno >= LPFC_MAX_HBQS)
1654 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1655 (phba, hbq_buf);
1656 else
1657 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1658 hbq_buf);
1659 }
1660 }
1661
1662 /* Mark the HBQs not in use */
1663 phba->hbq_in_use = 0;
1664 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001665}
1666
James Smarte59058c2008-08-24 21:49:00 -04001667/**
James Smart3621a712009-04-06 18:47:14 -04001668 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001669 * @phba: Pointer to HBA context object.
1670 * @hbqno: HBQ number.
1671 * @hbq_buf: Pointer to HBQ buffer.
1672 *
1673 * This function is called with the hbalock held to post a
1674 * hbq buffer to the firmware. If the function finds an empty
1675 * slot in the HBQ, it will post the buffer. The function will return
1676 * pointer to the hbq entry if it successfully post the buffer
1677 * else it will return NULL.
1678 **/
James Smart3772a992009-05-22 14:50:54 -04001679static int
James Smarted957682007-06-17 19:56:37 -05001680lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001681 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001682{
James Smart3772a992009-05-22 14:50:54 -04001683 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1684}
1685
1686/**
1687 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1688 * @phba: Pointer to HBA context object.
1689 * @hbqno: HBQ number.
1690 * @hbq_buf: Pointer to HBQ buffer.
1691 *
1692 * This function is called with the hbalock held to post a hbq buffer to the
1693 * firmware. If the function finds an empty slot in the HBQ, it will post the
1694 * buffer and place it on the hbq_buffer_list. The function will return zero if
1695 * it successfully post the buffer else it will return an error.
1696 **/
1697static int
1698lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1699 struct hbq_dmabuf *hbq_buf)
1700{
James Smarted957682007-06-17 19:56:37 -05001701 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001702 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001703
1704 /* Get next HBQ entry slot to use */
1705 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1706 if (hbqe) {
1707 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1708
James Smart92d7f7b2007-06-17 19:56:38 -05001709 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1710 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001711 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001712 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001713 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1714 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1715 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001716 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1717 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001718 /* flush */
James Smarted957682007-06-17 19:56:37 -05001719 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001720 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001721 return 0;
1722 } else
1723 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001724}
1725
James Smart4f774512009-05-22 14:52:35 -04001726/**
1727 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1728 * @phba: Pointer to HBA context object.
1729 * @hbqno: HBQ number.
1730 * @hbq_buf: Pointer to HBQ buffer.
1731 *
1732 * This function is called with the hbalock held to post an RQE to the SLI4
1733 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1734 * the hbq_buffer_list and return zero, otherwise it will return an error.
1735 **/
1736static int
1737lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1738 struct hbq_dmabuf *hbq_buf)
1739{
1740 int rc;
1741 struct lpfc_rqe hrqe;
1742 struct lpfc_rqe drqe;
1743
1744 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1745 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1746 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1747 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1748 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1749 &hrqe, &drqe);
1750 if (rc < 0)
1751 return rc;
1752 hbq_buf->tag = rc;
1753 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1754 return 0;
1755}
1756
James Smarte59058c2008-08-24 21:49:00 -04001757/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001758static struct lpfc_hbq_init lpfc_els_hbq = {
1759 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001760 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001761 .mask_count = 0,
1762 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001763 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001764 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001765 .init_count = 40,
1766 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001767};
James Smarted957682007-06-17 19:56:37 -05001768
James Smarte59058c2008-08-24 21:49:00 -04001769/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001770static struct lpfc_hbq_init lpfc_extra_hbq = {
1771 .rn = 1,
1772 .entry_count = 200,
1773 .mask_count = 0,
1774 .profile = 0,
1775 .ring_mask = (1 << LPFC_EXTRA_RING),
1776 .buffer_count = 0,
1777 .init_count = 0,
1778 .add_count = 5,
1779};
1780
James Smarte59058c2008-08-24 21:49:00 -04001781/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001782struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001783 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001784 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001785};
1786
James Smarte59058c2008-08-24 21:49:00 -04001787/**
James Smart3621a712009-04-06 18:47:14 -04001788 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001789 * @phba: Pointer to HBA context object.
1790 * @hbqno: HBQ number.
1791 * @count: Number of HBQ buffers to be posted.
1792 *
James Smartd7c255b2008-08-24 21:50:00 -04001793 * This function is called with no lock held to post more hbq buffers to the
1794 * given HBQ. The function returns the number of HBQ buffers successfully
1795 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001796 **/
James Smart311464e2007-08-02 11:10:37 -04001797static int
James Smart92d7f7b2007-06-17 19:56:38 -05001798lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1799{
James Smartd7c255b2008-08-24 21:50:00 -04001800 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001801 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001802 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001803 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001804 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001805 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001806
James Smartd7c255b2008-08-24 21:50:00 -04001807 if ((phba->hbqs[hbqno].buffer_count + count) >
1808 lpfc_hbq_defs[hbqno]->entry_count)
1809 count = lpfc_hbq_defs[hbqno]->entry_count -
1810 phba->hbqs[hbqno].buffer_count;
1811 if (!count)
1812 return 0;
1813 /* Allocate HBQ entries */
1814 for (i = 0; i < count; i++) {
1815 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1816 if (!hbq_buffer)
1817 break;
1818 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1819 }
James Smart3163f722008-02-08 18:50:25 -05001820 /* Check whether HBQ is still in use */
1821 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001822 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001823 goto err;
1824 while (!list_empty(&hbq_buf_list)) {
1825 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1826 dbuf.list);
1827 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1828 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001829 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001830 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001831 posted++;
1832 } else
James Smart51ef4c22007-08-02 11:10:31 -04001833 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001834 }
James Smart3163f722008-02-08 18:50:25 -05001835 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001836 return posted;
1837err:
1838 spin_unlock_irqrestore(&phba->hbalock, flags);
1839 while (!list_empty(&hbq_buf_list)) {
1840 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1841 dbuf.list);
1842 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1843 }
James Smart92d7f7b2007-06-17 19:56:38 -05001844 return 0;
James Smarted957682007-06-17 19:56:37 -05001845}
1846
James Smarte59058c2008-08-24 21:49:00 -04001847/**
James Smart3621a712009-04-06 18:47:14 -04001848 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001849 * @phba: Pointer to HBA context object.
1850 * @qno: HBQ number.
1851 *
1852 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001853 * is called with no lock held. The function returns the number of HBQ entries
1854 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001855 **/
James Smarted957682007-06-17 19:56:37 -05001856int
James Smart92d7f7b2007-06-17 19:56:38 -05001857lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001858{
James Smartdef9c7a2009-12-21 17:02:28 -05001859 if (phba->sli_rev == LPFC_SLI_REV4)
1860 return 0;
1861 else
1862 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1863 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001864}
1865
James Smarte59058c2008-08-24 21:49:00 -04001866/**
James Smart3621a712009-04-06 18:47:14 -04001867 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001868 * @phba: Pointer to HBA context object.
1869 * @qno: HBQ queue number.
1870 *
1871 * This function is called from SLI initialization code path with
1872 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001873 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001874 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001875static int
James Smart92d7f7b2007-06-17 19:56:38 -05001876lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001877{
James Smartdef9c7a2009-12-21 17:02:28 -05001878 if (phba->sli_rev == LPFC_SLI_REV4)
1879 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1880 lpfc_hbq_defs[qno]->entry_count);
1881 else
1882 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1883 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05001884}
1885
James Smarte59058c2008-08-24 21:49:00 -04001886/**
James Smart3772a992009-05-22 14:50:54 -04001887 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1888 * @phba: Pointer to HBA context object.
1889 * @hbqno: HBQ number.
1890 *
1891 * This function removes the first hbq buffer on an hbq list and returns a
1892 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1893 **/
1894static struct hbq_dmabuf *
1895lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1896{
1897 struct lpfc_dmabuf *d_buf;
1898
1899 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1900 if (!d_buf)
1901 return NULL;
1902 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1903}
1904
1905/**
James Smart3621a712009-04-06 18:47:14 -04001906 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001907 * @phba: Pointer to HBA context object.
1908 * @tag: Tag of the hbq buffer.
1909 *
1910 * This function is called with hbalock held. This function searches
1911 * for the hbq buffer associated with the given tag in the hbq buffer
1912 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1913 * it returns NULL.
1914 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001915static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001916lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1917{
James Smart92d7f7b2007-06-17 19:56:38 -05001918 struct lpfc_dmabuf *d_buf;
1919 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001920 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001921
James Smart51ef4c22007-08-02 11:10:31 -04001922 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001923 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001924 return NULL;
1925
James Smart3772a992009-05-22 14:50:54 -04001926 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001927 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001928 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001929 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001930 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001931 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001932 }
1933 }
James Smart3772a992009-05-22 14:50:54 -04001934 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001935 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001936 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04001937 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05001938 return NULL;
James Smarted957682007-06-17 19:56:37 -05001939}
1940
James Smarte59058c2008-08-24 21:49:00 -04001941/**
James Smart3621a712009-04-06 18:47:14 -04001942 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001943 * @phba: Pointer to HBA context object.
1944 * @hbq_buffer: Pointer to HBQ buffer.
1945 *
1946 * This function is called with hbalock. This function gives back
1947 * the hbq buffer to firmware. If the HBQ does not have space to
1948 * post the buffer, it will free the buffer.
1949 **/
James Smarted957682007-06-17 19:56:37 -05001950void
James Smart51ef4c22007-08-02 11:10:31 -04001951lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05001952{
1953 uint32_t hbqno;
1954
James Smart51ef4c22007-08-02 11:10:31 -04001955 if (hbq_buffer) {
1956 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04001957 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04001958 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05001959 }
1960}
1961
James Smarte59058c2008-08-24 21:49:00 -04001962/**
James Smart3621a712009-04-06 18:47:14 -04001963 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04001964 * @mbxCommand: mailbox command code.
1965 *
1966 * This function is called by the mailbox event handler function to verify
1967 * that the completed mailbox command is a legitimate mailbox command. If the
1968 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1969 * and the mailbox event handler will take the HBA offline.
1970 **/
dea31012005-04-17 16:05:31 -05001971static int
1972lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1973{
1974 uint8_t ret;
1975
1976 switch (mbxCommand) {
1977 case MBX_LOAD_SM:
1978 case MBX_READ_NV:
1979 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04001980 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05001981 case MBX_RUN_BIU_DIAG:
1982 case MBX_INIT_LINK:
1983 case MBX_DOWN_LINK:
1984 case MBX_CONFIG_LINK:
1985 case MBX_CONFIG_RING:
1986 case MBX_RESET_RING:
1987 case MBX_READ_CONFIG:
1988 case MBX_READ_RCONFIG:
1989 case MBX_READ_SPARM:
1990 case MBX_READ_STATUS:
1991 case MBX_READ_RPI:
1992 case MBX_READ_XRI:
1993 case MBX_READ_REV:
1994 case MBX_READ_LNK_STAT:
1995 case MBX_REG_LOGIN:
1996 case MBX_UNREG_LOGIN:
dea31012005-04-17 16:05:31 -05001997 case MBX_CLEAR_LA:
1998 case MBX_DUMP_MEMORY:
1999 case MBX_DUMP_CONTEXT:
2000 case MBX_RUN_DIAGS:
2001 case MBX_RESTART:
2002 case MBX_UPDATE_CFG:
2003 case MBX_DOWN_LOAD:
2004 case MBX_DEL_LD_ENTRY:
2005 case MBX_RUN_PROGRAM:
2006 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05002007 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05002008 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002009 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05002010 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05002011 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05002012 case MBX_LOAD_AREA:
2013 case MBX_RUN_BIU_DIAG64:
2014 case MBX_CONFIG_PORT:
2015 case MBX_READ_SPARM64:
2016 case MBX_READ_RPI64:
2017 case MBX_REG_LOGIN64:
James Smart76a95d72010-11-20 23:11:48 -05002018 case MBX_READ_TOPOLOGY:
James Smart09372822008-01-11 01:52:54 -05002019 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05002020 case MBX_SET_DEBUG:
2021 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04002022 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05002023 case MBX_REG_VPI:
2024 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05002025 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04002026 case MBX_PORT_CAPABILITIES:
2027 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04002028 case MBX_SLI4_CONFIG:
2029 case MBX_SLI4_REQ_FTRS:
2030 case MBX_REG_FCFI:
2031 case MBX_UNREG_FCFI:
2032 case MBX_REG_VFI:
2033 case MBX_UNREG_VFI:
2034 case MBX_INIT_VPI:
2035 case MBX_INIT_VFI:
2036 case MBX_RESUME_RPI:
James Smartc7495932010-04-06 15:05:28 -04002037 case MBX_READ_EVENT_LOG_STATUS:
2038 case MBX_READ_EVENT_LOG:
James Smartdcf2a4e2010-09-29 11:18:53 -04002039 case MBX_SECURITY_MGMT:
2040 case MBX_AUTH_PORT:
dea31012005-04-17 16:05:31 -05002041 ret = mbxCommand;
2042 break;
2043 default:
2044 ret = MBX_SHUTDOWN;
2045 break;
2046 }
James Smart2e0fef82007-06-17 19:56:36 -05002047 return ret;
dea31012005-04-17 16:05:31 -05002048}
James Smarte59058c2008-08-24 21:49:00 -04002049
2050/**
James Smart3621a712009-04-06 18:47:14 -04002051 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002052 * @phba: Pointer to HBA context object.
2053 * @pmboxq: Pointer to mailbox command.
2054 *
2055 * This is completion handler function for mailbox commands issued from
2056 * lpfc_sli_issue_mbox_wait function. This function is called by the
2057 * mailbox event handler function with no lock held. This function
2058 * will wake up thread waiting on the wait queue pointed by context1
2059 * of the mailbox.
2060 **/
James Smart04c68492009-05-22 14:52:52 -04002061void
James Smart2e0fef82007-06-17 19:56:36 -05002062lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05002063{
2064 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05002065 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05002066
2067 /*
2068 * If pdone_q is empty, the driver thread gave up waiting and
2069 * continued running.
2070 */
James Smart7054a602007-04-25 09:52:34 -04002071 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05002072 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002073 pdone_q = (wait_queue_head_t *) pmboxq->context1;
2074 if (pdone_q)
2075 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05002076 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05002077 return;
2078}
2079
James Smarte59058c2008-08-24 21:49:00 -04002080
2081/**
James Smart3621a712009-04-06 18:47:14 -04002082 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04002083 * @phba: Pointer to HBA context object.
2084 * @pmb: Pointer to mailbox object.
2085 *
2086 * This function is the default mailbox completion handler. It
2087 * frees the memory resources associated with the completed mailbox
2088 * command. If the completed command is a REG_LOGIN mailbox command,
2089 * this function will issue a UREG_LOGIN to re-claim the RPI.
2090 **/
dea31012005-04-17 16:05:31 -05002091void
James Smart2e0fef82007-06-17 19:56:36 -05002092lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05002093{
James Smartd439d282010-09-29 11:18:45 -04002094 struct lpfc_vport *vport = pmb->vport;
dea31012005-04-17 16:05:31 -05002095 struct lpfc_dmabuf *mp;
James Smartd439d282010-09-29 11:18:45 -04002096 struct lpfc_nodelist *ndlp;
James Smart5af5eee2010-10-22 11:06:38 -04002097 struct Scsi_Host *shost;
James Smart04c68492009-05-22 14:52:52 -04002098 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04002099 int rc;
2100
dea31012005-04-17 16:05:31 -05002101 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04002102
dea31012005-04-17 16:05:31 -05002103 if (mp) {
2104 lpfc_mbuf_free(phba, mp->virt, mp->phys);
2105 kfree(mp);
2106 }
James Smart7054a602007-04-25 09:52:34 -04002107
2108 /*
2109 * If a REG_LOGIN succeeded after node is destroyed or node
2110 * is in re-discovery driver need to cleanup the RPI.
2111 */
James Smart2e0fef82007-06-17 19:56:36 -05002112 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04002113 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
2114 !pmb->u.mb.mbxStatus) {
2115 rpi = pmb->u.mb.un.varWords[0];
2116 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
2117 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002118 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04002119 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
2120 if (rc != MBX_NOT_FINISHED)
2121 return;
2122 }
2123
James Smart695a8142010-01-26 23:08:03 -05002124 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
2125 !(phba->pport->load_flag & FC_UNLOADING) &&
2126 !pmb->u.mb.mbxStatus) {
James Smart5af5eee2010-10-22 11:06:38 -04002127 shost = lpfc_shost_from_vport(vport);
2128 spin_lock_irq(shost->host_lock);
2129 vport->vpi_state |= LPFC_VPI_REGISTERED;
2130 vport->fc_flag &= ~FC_VPORT_NEEDS_REG_VPI;
2131 spin_unlock_irq(shost->host_lock);
James Smart695a8142010-01-26 23:08:03 -05002132 }
2133
James Smartd439d282010-09-29 11:18:45 -04002134 if (pmb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
2135 ndlp = (struct lpfc_nodelist *)pmb->context2;
2136 lpfc_nlp_put(ndlp);
2137 pmb->context2 = NULL;
2138 }
2139
James Smartdcf2a4e2010-09-29 11:18:53 -04002140 /* Check security permission status on INIT_LINK mailbox command */
2141 if ((pmb->u.mb.mbxCommand == MBX_INIT_LINK) &&
2142 (pmb->u.mb.mbxStatus == MBXERR_SEC_NO_PERMISSION))
2143 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
2144 "2860 SLI authentication is required "
2145 "for INIT_LINK but has not done yet\n");
2146
James Smart04c68492009-05-22 14:52:52 -04002147 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
2148 lpfc_sli4_mbox_cmd_free(phba, pmb);
2149 else
2150 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05002151}
2152
James Smarte59058c2008-08-24 21:49:00 -04002153/**
James Smart3621a712009-04-06 18:47:14 -04002154 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04002155 * @phba: Pointer to HBA context object.
2156 *
2157 * This function is called with no lock held. This function processes all
2158 * the completed mailbox commands and gives it to upper layers. The interrupt
2159 * service routine processes mailbox completion interrupt and adds completed
2160 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2161 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2162 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2163 * function returns the mailbox commands to the upper layer by calling the
2164 * completion handler function of each mailbox.
2165 **/
dea31012005-04-17 16:05:31 -05002166int
James Smart2e0fef82007-06-17 19:56:36 -05002167lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05002168{
James Smart92d7f7b2007-06-17 19:56:38 -05002169 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05002170 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05002171 int rc;
2172 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05002173
2174 phba->sli.slistat.mbox_event++;
2175
James Smart92d7f7b2007-06-17 19:56:38 -05002176 /* Get all completed mailboxe buffers into the cmplq */
2177 spin_lock_irq(&phba->hbalock);
2178 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
2179 spin_unlock_irq(&phba->hbalock);
2180
dea31012005-04-17 16:05:31 -05002181 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05002182 do {
2183 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
2184 if (pmb == NULL)
2185 break;
2186
James Smart04c68492009-05-22 14:52:52 -04002187 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05002188
James Smart858c9f62007-06-17 19:56:39 -05002189 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
2190 if (pmb->vport) {
2191 lpfc_debugfs_disc_trc(pmb->vport,
2192 LPFC_DISC_TRC_MBOX_VPORT,
2193 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2194 (uint32_t)pmbox->mbxCommand,
2195 pmbox->un.varWords[0],
2196 pmbox->un.varWords[1]);
2197 }
2198 else {
2199 lpfc_debugfs_disc_trc(phba->pport,
2200 LPFC_DISC_TRC_MBOX,
2201 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2202 (uint32_t)pmbox->mbxCommand,
2203 pmbox->un.varWords[0],
2204 pmbox->un.varWords[1]);
2205 }
2206 }
2207
dea31012005-04-17 16:05:31 -05002208 /*
2209 * It is a fatal error if unknown mbox command completion.
2210 */
2211 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
2212 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02002213 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05002214 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002215 "(%d):0323 Unknown Mailbox command "
James Smart04c68492009-05-22 14:52:52 -04002216 "x%x (x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002217 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04002218 pmbox->mbxCommand,
2219 lpfc_sli4_mbox_opcode_get(phba, pmb));
James Smart2e0fef82007-06-17 19:56:36 -05002220 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05002221 phba->work_hs = HS_FFER3;
2222 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002223 continue;
dea31012005-04-17 16:05:31 -05002224 }
2225
dea31012005-04-17 16:05:31 -05002226 if (pmbox->mbxStatus) {
2227 phba->sli.slistat.mbox_stat_err++;
2228 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
2229 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05002230 lpfc_printf_log(phba, KERN_INFO,
2231 LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002232 "(%d):0305 Mbox cmd cmpl "
James Smart92d7f7b2007-06-17 19:56:38 -05002233 "error - RETRYing Data: x%x "
James Smart04c68492009-05-22 14:52:52 -04002234 "(x%x) x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05002235 pmb->vport ? pmb->vport->vpi :0,
2236 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04002237 lpfc_sli4_mbox_opcode_get(phba,
2238 pmb),
James Smart92d7f7b2007-06-17 19:56:38 -05002239 pmbox->mbxStatus,
2240 pmbox->un.varWords[0],
2241 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05002242 pmbox->mbxStatus = 0;
2243 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05002244 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04002245 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05002246 continue;
dea31012005-04-17 16:05:31 -05002247 }
2248 }
2249
2250 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05002251 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smart04c68492009-05-22 14:52:52 -04002252 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
dea31012005-04-17 16:05:31 -05002253 "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 -05002254 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05002255 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04002256 lpfc_sli4_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05002257 pmb->mbox_cmpl,
2258 *((uint32_t *) pmbox),
2259 pmbox->un.varWords[0],
2260 pmbox->un.varWords[1],
2261 pmbox->un.varWords[2],
2262 pmbox->un.varWords[3],
2263 pmbox->un.varWords[4],
2264 pmbox->un.varWords[5],
2265 pmbox->un.varWords[6],
2266 pmbox->un.varWords[7]);
2267
James Smart92d7f7b2007-06-17 19:56:38 -05002268 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05002269 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05002270 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05002271 return 0;
dea31012005-04-17 16:05:31 -05002272}
James Smart92d7f7b2007-06-17 19:56:38 -05002273
James Smarte59058c2008-08-24 21:49:00 -04002274/**
James Smart3621a712009-04-06 18:47:14 -04002275 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04002276 * @phba: Pointer to HBA context object.
2277 * @pring: Pointer to driver SLI ring object.
2278 * @tag: buffer tag.
2279 *
2280 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2281 * is set in the tag the buffer is posted for a particular exchange,
2282 * the function will return the buffer without replacing the buffer.
2283 * If the buffer is for unsolicited ELS or CT traffic, this function
2284 * returns the buffer and also posts another buffer to the firmware.
2285 **/
James Smart76bb24e2007-10-27 13:38:00 -04002286static struct lpfc_dmabuf *
2287lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05002288 struct lpfc_sli_ring *pring,
2289 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04002290{
James Smart9f1e1b52008-12-04 22:39:40 -05002291 struct hbq_dmabuf *hbq_entry;
2292
James Smart76bb24e2007-10-27 13:38:00 -04002293 if (tag & QUE_BUFTAG_BIT)
2294 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05002295 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
2296 if (!hbq_entry)
2297 return NULL;
2298 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04002299}
James Smart57127f12007-10-27 13:37:05 -04002300
James Smart3772a992009-05-22 14:50:54 -04002301/**
2302 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2303 * @phba: Pointer to HBA context object.
2304 * @pring: Pointer to driver SLI ring object.
2305 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2306 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2307 * @fch_type: the type for the first frame of the sequence.
2308 *
2309 * This function is called with no lock held. This function uses the r_ctl and
2310 * type of the received sequence to find the correct callback function to call
2311 * to process the sequence.
2312 **/
2313static int
2314lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2315 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
2316 uint32_t fch_type)
2317{
2318 int i;
2319
2320 /* unSolicited Responses */
2321 if (pring->prt[0].profile) {
2322 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
2323 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
2324 saveq);
2325 return 1;
2326 }
2327 /* We must search, based on rctl / type
2328 for the right routine */
2329 for (i = 0; i < pring->num_mask; i++) {
2330 if ((pring->prt[i].rctl == fch_r_ctl) &&
2331 (pring->prt[i].type == fch_type)) {
2332 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
2333 (pring->prt[i].lpfc_sli_rcv_unsol_event)
2334 (phba, pring, saveq);
2335 return 1;
2336 }
2337 }
2338 return 0;
2339}
James Smarte59058c2008-08-24 21:49:00 -04002340
2341/**
James Smart3621a712009-04-06 18:47:14 -04002342 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04002343 * @phba: Pointer to HBA context object.
2344 * @pring: Pointer to driver SLI ring object.
2345 * @saveq: Pointer to the unsolicited iocb.
2346 *
2347 * This function is called with no lock held by the ring event handler
2348 * when there is an unsolicited iocb posted to the response ring by the
2349 * firmware. This function gets the buffer associated with the iocbs
2350 * and calls the event handler for the ring. This function handles both
2351 * qring buffers and hbq buffers.
2352 * When the function returns 1 the caller can free the iocb object otherwise
2353 * upper layer functions will free the iocb objects.
2354 **/
dea31012005-04-17 16:05:31 -05002355static int
2356lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2357 struct lpfc_iocbq *saveq)
2358{
2359 IOCB_t * irsp;
2360 WORD5 * w5p;
2361 uint32_t Rctl, Type;
James Smart3772a992009-05-22 14:50:54 -04002362 uint32_t match;
James Smart76bb24e2007-10-27 13:38:00 -04002363 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05002364 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05002365
2366 match = 0;
2367 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04002368
2369 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2370 if (pring->lpfc_sli_rcv_async_status)
2371 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2372 else
2373 lpfc_printf_log(phba,
2374 KERN_WARNING,
2375 LOG_SLI,
2376 "0316 Ring %d handler: unexpected "
2377 "ASYNC_STATUS iocb received evt_code "
2378 "0x%x\n",
2379 pring->ringno,
2380 irsp->un.asyncstat.evt_code);
2381 return 1;
2382 }
2383
James Smart3163f722008-02-08 18:50:25 -05002384 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2385 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2386 if (irsp->ulpBdeCount > 0) {
2387 dmzbuf = lpfc_sli_get_buff(phba, pring,
2388 irsp->un.ulpWord[3]);
2389 lpfc_in_buf_free(phba, dmzbuf);
2390 }
2391
2392 if (irsp->ulpBdeCount > 1) {
2393 dmzbuf = lpfc_sli_get_buff(phba, pring,
2394 irsp->unsli3.sli3Words[3]);
2395 lpfc_in_buf_free(phba, dmzbuf);
2396 }
2397
2398 if (irsp->ulpBdeCount > 2) {
2399 dmzbuf = lpfc_sli_get_buff(phba, pring,
2400 irsp->unsli3.sli3Words[7]);
2401 lpfc_in_buf_free(phba, dmzbuf);
2402 }
2403
2404 return 1;
2405 }
2406
James Smart92d7f7b2007-06-17 19:56:38 -05002407 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002408 if (irsp->ulpBdeCount != 0) {
2409 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002410 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002411 if (!saveq->context2)
2412 lpfc_printf_log(phba,
2413 KERN_ERR,
2414 LOG_SLI,
2415 "0341 Ring %d Cannot find buffer for "
2416 "an unsolicited iocb. tag 0x%x\n",
2417 pring->ringno,
2418 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002419 }
2420 if (irsp->ulpBdeCount == 2) {
2421 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002422 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002423 if (!saveq->context3)
2424 lpfc_printf_log(phba,
2425 KERN_ERR,
2426 LOG_SLI,
2427 "0342 Ring %d Cannot find buffer for an"
2428 " unsolicited iocb. tag 0x%x\n",
2429 pring->ringno,
2430 irsp->unsli3.sli3Words[7]);
2431 }
2432 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002433 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002434 if (irsp->ulpBdeCount != 0) {
2435 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2436 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002437 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002438 lpfc_printf_log(phba,
2439 KERN_ERR,
2440 LOG_SLI,
2441 "0343 Ring %d Cannot find "
2442 "buffer for an unsolicited iocb"
2443 ". tag 0x%x\n", pring->ringno,
2444 irsp->un.ulpWord[3]);
2445 }
2446 if (irsp->ulpBdeCount == 2) {
2447 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2448 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002449 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002450 lpfc_printf_log(phba,
2451 KERN_ERR,
2452 LOG_SLI,
2453 "0344 Ring %d Cannot find "
2454 "buffer for an unsolicited "
2455 "iocb. tag 0x%x\n",
2456 pring->ringno,
2457 irsp->unsli3.sli3Words[7]);
2458 }
2459 }
James Smart92d7f7b2007-06-17 19:56:38 -05002460 }
James Smart9c2face2008-01-11 01:53:18 -05002461 if (irsp->ulpBdeCount != 0 &&
2462 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2463 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2464 int found = 0;
2465
2466 /* search continue save q for same XRI */
2467 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2468 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2469 list_add_tail(&saveq->list, &iocbq->list);
2470 found = 1;
2471 break;
2472 }
2473 }
2474 if (!found)
2475 list_add_tail(&saveq->clist,
2476 &pring->iocb_continue_saveq);
2477 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2478 list_del_init(&iocbq->clist);
2479 saveq = iocbq;
2480 irsp = &(saveq->iocb);
2481 } else
2482 return 0;
2483 }
2484 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2485 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2486 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002487 Rctl = FC_RCTL_ELS_REQ;
2488 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002489 } else {
2490 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2491 Rctl = w5p->hcsw.Rctl;
2492 Type = w5p->hcsw.Type;
2493
2494 /* Firmware Workaround */
2495 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2496 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2497 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002498 Rctl = FC_RCTL_ELS_REQ;
2499 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002500 w5p->hcsw.Rctl = Rctl;
2501 w5p->hcsw.Type = Type;
2502 }
2503 }
James Smart92d7f7b2007-06-17 19:56:38 -05002504
James Smart3772a992009-05-22 14:50:54 -04002505 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002506 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002507 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002508 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002509 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002510
James Smart92d7f7b2007-06-17 19:56:38 -05002511 return 1;
dea31012005-04-17 16:05:31 -05002512}
2513
James Smarte59058c2008-08-24 21:49:00 -04002514/**
James Smart3621a712009-04-06 18:47:14 -04002515 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002516 * @phba: Pointer to HBA context object.
2517 * @pring: Pointer to driver SLI ring object.
2518 * @prspiocb: Pointer to response iocb object.
2519 *
2520 * This function looks up the iocb_lookup table to get the command iocb
2521 * corresponding to the given response iocb using the iotag of the
2522 * response iocb. This function is called with the hbalock held.
2523 * This function returns the command iocb object if it finds the command
2524 * iocb else returns NULL.
2525 **/
dea31012005-04-17 16:05:31 -05002526static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002527lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2528 struct lpfc_sli_ring *pring,
2529 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002530{
dea31012005-04-17 16:05:31 -05002531 struct lpfc_iocbq *cmd_iocb = NULL;
2532 uint16_t iotag;
2533
James Bottomley604a3e32005-10-29 10:28:33 -05002534 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002535
James Bottomley604a3e32005-10-29 10:28:33 -05002536 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2537 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002538 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002539 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2540 pring->txcmplq_cnt--;
2541 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2542 }
James Bottomley604a3e32005-10-29 10:28:33 -05002543 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002544 }
2545
dea31012005-04-17 16:05:31 -05002546 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002547 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002548 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002549 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002550 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002551 return NULL;
2552}
2553
James Smarte59058c2008-08-24 21:49:00 -04002554/**
James Smart3772a992009-05-22 14:50:54 -04002555 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2556 * @phba: Pointer to HBA context object.
2557 * @pring: Pointer to driver SLI ring object.
2558 * @iotag: IOCB tag.
2559 *
2560 * This function looks up the iocb_lookup table to get the command iocb
2561 * corresponding to the given iotag. This function is called with the
2562 * hbalock held.
2563 * This function returns the command iocb object if it finds the command
2564 * iocb else returns NULL.
2565 **/
2566static struct lpfc_iocbq *
2567lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2568 struct lpfc_sli_ring *pring, uint16_t iotag)
2569{
2570 struct lpfc_iocbq *cmd_iocb;
2571
2572 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2573 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2574 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002575 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2576 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2577 pring->txcmplq_cnt--;
2578 }
James Smart3772a992009-05-22 14:50:54 -04002579 return cmd_iocb;
2580 }
2581
2582 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2583 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2584 iotag, phba->sli.last_iotag);
2585 return NULL;
2586}
2587
2588/**
James Smart3621a712009-04-06 18:47:14 -04002589 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002590 * @phba: Pointer to HBA context object.
2591 * @pring: Pointer to driver SLI ring object.
2592 * @saveq: Pointer to the response iocb to be processed.
2593 *
2594 * This function is called by the ring event handler for non-fcp
2595 * rings when there is a new response iocb in the response ring.
2596 * The caller is not required to hold any locks. This function
2597 * gets the command iocb associated with the response iocb and
2598 * calls the completion handler for the command iocb. If there
2599 * is no completion handler, the function will free the resources
2600 * associated with command iocb. If the response iocb is for
2601 * an already aborted command iocb, the status of the completion
2602 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2603 * This function always returns 1.
2604 **/
dea31012005-04-17 16:05:31 -05002605static int
James Smart2e0fef82007-06-17 19:56:36 -05002606lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002607 struct lpfc_iocbq *saveq)
2608{
James Smart2e0fef82007-06-17 19:56:36 -05002609 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002610 int rc = 1;
2611 unsigned long iflag;
2612
2613 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002614 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002615 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002616 spin_unlock_irqrestore(&phba->hbalock, iflag);
2617
dea31012005-04-17 16:05:31 -05002618 if (cmdiocbp) {
2619 if (cmdiocbp->iocb_cmpl) {
2620 /*
James Smartea2151b2008-09-07 11:52:10 -04002621 * If an ELS command failed send an event to mgmt
2622 * application.
2623 */
2624 if (saveq->iocb.ulpStatus &&
2625 (pring->ringno == LPFC_ELS_RING) &&
2626 (cmdiocbp->iocb.ulpCommand ==
2627 CMD_ELS_REQUEST64_CR))
2628 lpfc_send_els_failure_event(phba,
2629 cmdiocbp, saveq);
2630
2631 /*
dea31012005-04-17 16:05:31 -05002632 * Post all ELS completions to the worker thread.
2633 * All other are passed to the completion callback.
2634 */
2635 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002636 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2637 (cmdiocbp->iocb_flag &
2638 LPFC_DRIVER_ABORTED)) {
2639 spin_lock_irqsave(&phba->hbalock,
2640 iflag);
James Smart07951072007-04-25 09:51:38 -04002641 cmdiocbp->iocb_flag &=
2642 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002643 spin_unlock_irqrestore(&phba->hbalock,
2644 iflag);
James Smart07951072007-04-25 09:51:38 -04002645 saveq->iocb.ulpStatus =
2646 IOSTAT_LOCAL_REJECT;
2647 saveq->iocb.un.ulpWord[4] =
2648 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002649
2650 /* Firmware could still be in progress
2651 * of DMAing payload, so don't free data
2652 * buffer till after a hbeat.
2653 */
James Smart341af102010-01-26 23:07:37 -05002654 spin_lock_irqsave(&phba->hbalock,
2655 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002656 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002657 spin_unlock_irqrestore(&phba->hbalock,
2658 iflag);
2659 }
James Smart0f65ff62010-02-26 14:14:23 -05002660 if (phba->sli_rev == LPFC_SLI_REV4) {
2661 if (saveq->iocb_flag &
2662 LPFC_EXCHANGE_BUSY) {
2663 /* Set cmdiocb flag for the
2664 * exchange busy so sgl (xri)
2665 * will not be released until
2666 * the abort xri is received
2667 * from hba.
2668 */
2669 spin_lock_irqsave(
2670 &phba->hbalock, iflag);
2671 cmdiocbp->iocb_flag |=
2672 LPFC_EXCHANGE_BUSY;
2673 spin_unlock_irqrestore(
2674 &phba->hbalock, iflag);
2675 }
2676 if (cmdiocbp->iocb_flag &
2677 LPFC_DRIVER_ABORTED) {
2678 /*
2679 * Clear LPFC_DRIVER_ABORTED
2680 * bit in case it was driver
2681 * initiated abort.
2682 */
2683 spin_lock_irqsave(
2684 &phba->hbalock, iflag);
2685 cmdiocbp->iocb_flag &=
2686 ~LPFC_DRIVER_ABORTED;
2687 spin_unlock_irqrestore(
2688 &phba->hbalock, iflag);
2689 cmdiocbp->iocb.ulpStatus =
2690 IOSTAT_LOCAL_REJECT;
2691 cmdiocbp->iocb.un.ulpWord[4] =
2692 IOERR_ABORT_REQUESTED;
2693 /*
2694 * For SLI4, irsiocb contains
2695 * NO_XRI in sli_xritag, it
2696 * shall not affect releasing
2697 * sgl (xri) process.
2698 */
2699 saveq->iocb.ulpStatus =
2700 IOSTAT_LOCAL_REJECT;
2701 saveq->iocb.un.ulpWord[4] =
2702 IOERR_SLI_ABORTED;
2703 spin_lock_irqsave(
2704 &phba->hbalock, iflag);
2705 saveq->iocb_flag |=
2706 LPFC_DELAY_MEM_FREE;
2707 spin_unlock_irqrestore(
2708 &phba->hbalock, iflag);
2709 }
James Smart07951072007-04-25 09:51:38 -04002710 }
dea31012005-04-17 16:05:31 -05002711 }
James Smart2e0fef82007-06-17 19:56:36 -05002712 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002713 } else
2714 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002715 } else {
2716 /*
2717 * Unknown initiating command based on the response iotag.
2718 * This could be the case on the ELS ring because of
2719 * lpfc_els_abort().
2720 */
2721 if (pring->ringno != LPFC_ELS_RING) {
2722 /*
2723 * Ring <ringno> handler: unexpected completion IoTag
2724 * <IoTag>
2725 */
James Smarta257bf92009-04-06 18:48:10 -04002726 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002727 "0322 Ring %d handler: "
2728 "unexpected completion IoTag x%x "
2729 "Data: x%x x%x x%x x%x\n",
2730 pring->ringno,
2731 saveq->iocb.ulpIoTag,
2732 saveq->iocb.ulpStatus,
2733 saveq->iocb.un.ulpWord[4],
2734 saveq->iocb.ulpCommand,
2735 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002736 }
2737 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002738
dea31012005-04-17 16:05:31 -05002739 return rc;
2740}
2741
James Smarte59058c2008-08-24 21:49:00 -04002742/**
James Smart3621a712009-04-06 18:47:14 -04002743 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002744 * @phba: Pointer to HBA context object.
2745 * @pring: Pointer to driver SLI ring object.
2746 *
2747 * This function is called from the iocb ring event handlers when
2748 * put pointer is ahead of the get pointer for a ring. This function signal
2749 * an error attention condition to the worker thread and the worker
2750 * thread will transition the HBA to offline state.
2751 **/
James Smart2e0fef82007-06-17 19:56:36 -05002752static void
2753lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002754{
James Smart34b02dc2008-08-24 21:49:55 -04002755 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002756 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002757 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002758 * rsp ring <portRspMax>
2759 */
2760 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002761 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002762 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002763 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002764 pring->numRiocb);
2765
James Smart2e0fef82007-06-17 19:56:36 -05002766 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002767
2768 /*
2769 * All error attention handlers are posted to
2770 * worker thread
2771 */
2772 phba->work_ha |= HA_ERATT;
2773 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002774
James Smart5e9d9b82008-06-14 22:52:53 -04002775 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002776
2777 return;
2778}
2779
James Smarte59058c2008-08-24 21:49:00 -04002780/**
James Smart3621a712009-04-06 18:47:14 -04002781 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002782 * @ptr: Pointer to address of HBA context object.
2783 *
2784 * This function is invoked by the Error Attention polling timer when the
2785 * timer times out. It will check the SLI Error Attention register for
2786 * possible attention events. If so, it will post an Error Attention event
2787 * and wake up worker thread to process it. Otherwise, it will set up the
2788 * Error Attention polling timer for the next poll.
2789 **/
2790void lpfc_poll_eratt(unsigned long ptr)
2791{
2792 struct lpfc_hba *phba;
2793 uint32_t eratt = 0;
2794
2795 phba = (struct lpfc_hba *)ptr;
2796
2797 /* Check chip HA register for error event */
2798 eratt = lpfc_sli_check_eratt(phba);
2799
2800 if (eratt)
2801 /* Tell the worker thread there is work to do */
2802 lpfc_worker_wake_up(phba);
2803 else
2804 /* Restart the timer for next eratt poll */
2805 mod_timer(&phba->eratt_poll, jiffies +
2806 HZ * LPFC_ERATT_POLL_INTERVAL);
2807 return;
2808}
2809
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002810
James Smarte59058c2008-08-24 21:49:00 -04002811/**
James Smart3621a712009-04-06 18:47:14 -04002812 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002813 * @phba: Pointer to HBA context object.
2814 * @pring: Pointer to driver SLI ring object.
2815 * @mask: Host attention register mask for this ring.
2816 *
2817 * This function is called from the interrupt context when there is a ring
2818 * event for the fcp ring. The caller does not hold any lock.
2819 * The function processes each response iocb in the response ring until it
2820 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2821 * LE bit set. The function will call the completion handler of the command iocb
2822 * if the response iocb indicates a completion for a command iocb or it is
2823 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2824 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002825 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04002826 * to check it explicitly.
2827 */
2828int
James Smart2e0fef82007-06-17 19:56:36 -05002829lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2830 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002831{
James Smart34b02dc2008-08-24 21:49:55 -04002832 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002833 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002834 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002835 struct lpfc_iocbq *cmdiocbq = NULL;
2836 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002837 uint32_t status;
2838 uint32_t portRspPut, portRspMax;
2839 int rc = 1;
2840 lpfc_iocb_type type;
2841 unsigned long iflag;
2842 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002843
James Smart2e0fef82007-06-17 19:56:36 -05002844 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002845 pring->stats.iocb_event++;
2846
dea31012005-04-17 16:05:31 -05002847 /*
2848 * The next available response entry should never exceed the maximum
2849 * entries. If it does, treat it as an adapter hardware error.
2850 */
2851 portRspMax = pring->numRiocb;
2852 portRspPut = le32_to_cpu(pgp->rspPutInx);
2853 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002854 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002855 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002856 return 1;
2857 }
James Smart45ed1192009-10-02 15:17:02 -04002858 if (phba->fcp_ring_in_use) {
2859 spin_unlock_irqrestore(&phba->hbalock, iflag);
2860 return 1;
2861 } else
2862 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05002863
2864 rmb();
2865 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002866 /*
2867 * Fetch an entry off the ring and copy it into a local data
2868 * structure. The copy involves a byte-swap since the
2869 * network byte order and pci byte orders are different.
2870 */
James Smarted957682007-06-17 19:56:37 -05002871 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05002872 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002873
2874 if (++pring->rspidx >= portRspMax)
2875 pring->rspidx = 0;
2876
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002877 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2878 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05002879 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05002880 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002881 irsp = &rspiocbq.iocb;
2882
dea31012005-04-17 16:05:31 -05002883 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2884 pring->stats.iocb_rsp++;
2885 rsp_cmpl++;
2886
2887 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05002888 /*
2889 * If resource errors reported from HBA, reduce
2890 * queuedepths of the SCSI device.
2891 */
2892 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2893 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2894 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002895 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002896 spin_lock_irqsave(&phba->hbalock, iflag);
2897 }
2898
dea31012005-04-17 16:05:31 -05002899 /* Rsp ring <ringno> error: IOCB */
2900 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002901 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05002902 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002903 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05002904 irsp->un.ulpWord[0],
2905 irsp->un.ulpWord[1],
2906 irsp->un.ulpWord[2],
2907 irsp->un.ulpWord[3],
2908 irsp->un.ulpWord[4],
2909 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002910 *(uint32_t *)&irsp->un1,
2911 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05002912 }
2913
2914 switch (type) {
2915 case LPFC_ABORT_IOCB:
2916 case LPFC_SOL_IOCB:
2917 /*
2918 * Idle exchange closed via ABTS from port. No iocb
2919 * resources need to be recovered.
2920 */
2921 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002922 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002923 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04002924 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05002925 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04002926 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05002927 break;
2928 }
2929
James Bottomley604a3e32005-10-29 10:28:33 -05002930 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2931 &rspiocbq);
James Smart0f65ff62010-02-26 14:14:23 -05002932 if (unlikely(!cmdiocbq))
2933 break;
2934 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2935 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2936 if (cmdiocbq->iocb_cmpl) {
2937 spin_unlock_irqrestore(&phba->hbalock, iflag);
2938 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2939 &rspiocbq);
2940 spin_lock_irqsave(&phba->hbalock, iflag);
2941 }
dea31012005-04-17 16:05:31 -05002942 break;
James Smarta4bc3372006-12-02 13:34:16 -05002943 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05002944 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002945 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002946 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002947 break;
dea31012005-04-17 16:05:31 -05002948 default:
2949 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2950 char adaptermsg[LPFC_MAX_ADPTMSG];
2951 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2952 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2953 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002954 dev_warn(&((phba->pcidev)->dev),
2955 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05002956 phba->brd_no, adaptermsg);
2957 } else {
2958 /* Unknown IOCB command */
2959 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002960 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05002961 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002962 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05002963 irsp->ulpStatus,
2964 irsp->ulpIoTag,
2965 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05002966 }
2967 break;
2968 }
2969
2970 /*
2971 * The response IOCB has been processed. Update the ring
2972 * pointer in SLIM. If the port response put pointer has not
2973 * been updated, sync the pgp->rspPutInx and fetch the new port
2974 * response put pointer.
2975 */
James Smarted957682007-06-17 19:56:37 -05002976 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002977
2978 if (pring->rspidx == portRspPut)
2979 portRspPut = le32_to_cpu(pgp->rspPutInx);
2980 }
2981
2982 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2983 pring->stats.iocb_rsp_full++;
2984 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2985 writel(status, phba->CAregaddr);
2986 readl(phba->CAregaddr);
2987 }
2988 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2989 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2990 pring->stats.iocb_cmd_empty++;
2991
2992 /* Force update of the local copy of cmdGetInx */
2993 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2994 lpfc_sli_resume_iocb(phba, pring);
2995
2996 if ((pring->lpfc_sli_cmd_available))
2997 (pring->lpfc_sli_cmd_available) (phba, pring);
2998
2999 }
3000
James Smart45ed1192009-10-02 15:17:02 -04003001 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003002 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003003 return rc;
3004}
3005
James Smarte59058c2008-08-24 21:49:00 -04003006/**
James Smart3772a992009-05-22 14:50:54 -04003007 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3008 * @phba: Pointer to HBA context object.
3009 * @pring: Pointer to driver SLI ring object.
3010 * @rspiocbp: Pointer to driver response IOCB object.
3011 *
3012 * This function is called from the worker thread when there is a slow-path
3013 * response IOCB to process. This function chains all the response iocbs until
3014 * seeing the iocb with the LE bit set. The function will call
3015 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3016 * completion of a command iocb. The function will call the
3017 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3018 * The function frees the resources or calls the completion handler if this
3019 * iocb is an abort completion. The function returns NULL when the response
3020 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3021 * this function shall chain the iocb on to the iocb_continueq and return the
3022 * response iocb passed in.
3023 **/
3024static struct lpfc_iocbq *
3025lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
3026 struct lpfc_iocbq *rspiocbp)
3027{
3028 struct lpfc_iocbq *saveq;
3029 struct lpfc_iocbq *cmdiocbp;
3030 struct lpfc_iocbq *next_iocb;
3031 IOCB_t *irsp = NULL;
3032 uint32_t free_saveq;
3033 uint8_t iocb_cmd_type;
3034 lpfc_iocb_type type;
3035 unsigned long iflag;
3036 int rc;
3037
3038 spin_lock_irqsave(&phba->hbalock, iflag);
3039 /* First add the response iocb to the countinueq list */
3040 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
3041 pring->iocb_continueq_cnt++;
3042
3043 /* Now, determine whetehr the list is completed for processing */
3044 irsp = &rspiocbp->iocb;
3045 if (irsp->ulpLe) {
3046 /*
3047 * By default, the driver expects to free all resources
3048 * associated with this iocb completion.
3049 */
3050 free_saveq = 1;
3051 saveq = list_get_first(&pring->iocb_continueq,
3052 struct lpfc_iocbq, list);
3053 irsp = &(saveq->iocb);
3054 list_del_init(&pring->iocb_continueq);
3055 pring->iocb_continueq_cnt = 0;
3056
3057 pring->stats.iocb_rsp++;
3058
3059 /*
3060 * If resource errors reported from HBA, reduce
3061 * queuedepths of the SCSI device.
3062 */
3063 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
3064 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
3065 spin_unlock_irqrestore(&phba->hbalock, iflag);
3066 phba->lpfc_rampdown_queue_depth(phba);
3067 spin_lock_irqsave(&phba->hbalock, iflag);
3068 }
3069
3070 if (irsp->ulpStatus) {
3071 /* Rsp ring <ringno> error: IOCB */
3072 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
3073 "0328 Rsp Ring %d error: "
3074 "IOCB Data: "
3075 "x%x x%x x%x x%x "
3076 "x%x x%x x%x x%x "
3077 "x%x x%x x%x x%x "
3078 "x%x x%x x%x x%x\n",
3079 pring->ringno,
3080 irsp->un.ulpWord[0],
3081 irsp->un.ulpWord[1],
3082 irsp->un.ulpWord[2],
3083 irsp->un.ulpWord[3],
3084 irsp->un.ulpWord[4],
3085 irsp->un.ulpWord[5],
3086 *(((uint32_t *) irsp) + 6),
3087 *(((uint32_t *) irsp) + 7),
3088 *(((uint32_t *) irsp) + 8),
3089 *(((uint32_t *) irsp) + 9),
3090 *(((uint32_t *) irsp) + 10),
3091 *(((uint32_t *) irsp) + 11),
3092 *(((uint32_t *) irsp) + 12),
3093 *(((uint32_t *) irsp) + 13),
3094 *(((uint32_t *) irsp) + 14),
3095 *(((uint32_t *) irsp) + 15));
3096 }
3097
3098 /*
3099 * Fetch the IOCB command type and call the correct completion
3100 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3101 * get freed back to the lpfc_iocb_list by the discovery
3102 * kernel thread.
3103 */
3104 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
3105 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
3106 switch (type) {
3107 case LPFC_SOL_IOCB:
3108 spin_unlock_irqrestore(&phba->hbalock, iflag);
3109 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
3110 spin_lock_irqsave(&phba->hbalock, iflag);
3111 break;
3112
3113 case LPFC_UNSOL_IOCB:
3114 spin_unlock_irqrestore(&phba->hbalock, iflag);
3115 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
3116 spin_lock_irqsave(&phba->hbalock, iflag);
3117 if (!rc)
3118 free_saveq = 0;
3119 break;
3120
3121 case LPFC_ABORT_IOCB:
3122 cmdiocbp = NULL;
3123 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
3124 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
3125 saveq);
3126 if (cmdiocbp) {
3127 /* Call the specified completion routine */
3128 if (cmdiocbp->iocb_cmpl) {
3129 spin_unlock_irqrestore(&phba->hbalock,
3130 iflag);
3131 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
3132 saveq);
3133 spin_lock_irqsave(&phba->hbalock,
3134 iflag);
3135 } else
3136 __lpfc_sli_release_iocbq(phba,
3137 cmdiocbp);
3138 }
3139 break;
3140
3141 case LPFC_UNKNOWN_IOCB:
3142 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
3143 char adaptermsg[LPFC_MAX_ADPTMSG];
3144 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
3145 memcpy(&adaptermsg[0], (uint8_t *)irsp,
3146 MAX_MSG_DATA);
3147 dev_warn(&((phba->pcidev)->dev),
3148 "lpfc%d: %s\n",
3149 phba->brd_no, adaptermsg);
3150 } else {
3151 /* Unknown IOCB command */
3152 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3153 "0335 Unknown IOCB "
3154 "command Data: x%x "
3155 "x%x x%x x%x\n",
3156 irsp->ulpCommand,
3157 irsp->ulpStatus,
3158 irsp->ulpIoTag,
3159 irsp->ulpContext);
3160 }
3161 break;
3162 }
3163
3164 if (free_saveq) {
3165 list_for_each_entry_safe(rspiocbp, next_iocb,
3166 &saveq->list, list) {
3167 list_del(&rspiocbp->list);
3168 __lpfc_sli_release_iocbq(phba, rspiocbp);
3169 }
3170 __lpfc_sli_release_iocbq(phba, saveq);
3171 }
3172 rspiocbp = NULL;
3173 }
3174 spin_unlock_irqrestore(&phba->hbalock, iflag);
3175 return rspiocbp;
3176}
3177
3178/**
3179 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04003180 * @phba: Pointer to HBA context object.
3181 * @pring: Pointer to driver SLI ring object.
3182 * @mask: Host attention register mask for this ring.
3183 *
James Smart3772a992009-05-22 14:50:54 -04003184 * This routine wraps the actual slow_ring event process routine from the
3185 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04003186 **/
James Smart3772a992009-05-22 14:50:54 -04003187void
James Smart2e0fef82007-06-17 19:56:36 -05003188lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
3189 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05003190{
James Smart3772a992009-05-22 14:50:54 -04003191 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
3192}
3193
3194/**
3195 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3196 * @phba: Pointer to HBA context object.
3197 * @pring: Pointer to driver SLI ring object.
3198 * @mask: Host attention register mask for this ring.
3199 *
3200 * This function is called from the worker thread when there is a ring event
3201 * for non-fcp rings. The caller does not hold any lock. The function will
3202 * remove each response iocb in the response ring and calls the handle
3203 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3204 **/
3205static void
3206lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
3207 struct lpfc_sli_ring *pring, uint32_t mask)
3208{
James Smart34b02dc2008-08-24 21:49:55 -04003209 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05003210 IOCB_t *entry;
3211 IOCB_t *irsp = NULL;
3212 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05003213 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05003214 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04003215 uint32_t status;
dea31012005-04-17 16:05:31 -05003216
James Smart34b02dc2008-08-24 21:49:55 -04003217 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05003218 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003219 pring->stats.iocb_event++;
3220
dea31012005-04-17 16:05:31 -05003221 /*
3222 * The next available response entry should never exceed the maximum
3223 * entries. If it does, treat it as an adapter hardware error.
3224 */
3225 portRspMax = pring->numRiocb;
3226 portRspPut = le32_to_cpu(pgp->rspPutInx);
3227 if (portRspPut >= portRspMax) {
3228 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003229 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05003230 * rsp ring <portRspMax>
3231 */
James Smarted957682007-06-17 19:56:37 -05003232 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003233 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02003234 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04003235 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05003236
James Smart2e0fef82007-06-17 19:56:36 -05003237 phba->link_state = LPFC_HBA_ERROR;
3238 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003239
3240 phba->work_hs = HS_FFER3;
3241 lpfc_handle_eratt(phba);
3242
James Smart3772a992009-05-22 14:50:54 -04003243 return;
dea31012005-04-17 16:05:31 -05003244 }
3245
3246 rmb();
dea31012005-04-17 16:05:31 -05003247 while (pring->rspidx != portRspPut) {
3248 /*
3249 * Build a completion list and call the appropriate handler.
3250 * The process is to get the next available response iocb, get
3251 * a free iocb from the list, copy the response data into the
3252 * free iocb, insert to the continuation list, and update the
3253 * next response index to slim. This process makes response
3254 * iocb's in the ring available to DMA as fast as possible but
3255 * pays a penalty for a copy operation. Since the iocb is
3256 * only 32 bytes, this penalty is considered small relative to
3257 * the PCI reads for register values and a slim write. When
3258 * the ulpLe field is set, the entire Command has been
3259 * received.
3260 */
James Smarted957682007-06-17 19:56:37 -05003261 entry = lpfc_resp_iocb(phba, pring);
3262
James Smart858c9f62007-06-17 19:56:39 -05003263 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05003264 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05003265 if (rspiocbp == NULL) {
3266 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07003267 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05003268 break;
3269 }
3270
James Smarted957682007-06-17 19:56:37 -05003271 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
3272 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05003273 irsp = &rspiocbp->iocb;
3274
3275 if (++pring->rspidx >= portRspMax)
3276 pring->rspidx = 0;
3277
James Smarta58cbd52007-08-02 11:09:43 -04003278 if (pring->ringno == LPFC_ELS_RING) {
3279 lpfc_debugfs_slow_ring_trc(phba,
3280 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3281 *(((uint32_t *) irsp) + 4),
3282 *(((uint32_t *) irsp) + 6),
3283 *(((uint32_t *) irsp) + 7));
3284 }
3285
James Smarted957682007-06-17 19:56:37 -05003286 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05003287
James Smart3772a992009-05-22 14:50:54 -04003288 spin_unlock_irqrestore(&phba->hbalock, iflag);
3289 /* Handle the response IOCB */
3290 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
3291 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05003292
3293 /*
3294 * If the port response put pointer has not been updated, sync
3295 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3296 * response put pointer.
3297 */
3298 if (pring->rspidx == portRspPut) {
3299 portRspPut = le32_to_cpu(pgp->rspPutInx);
3300 }
3301 } /* while (pring->rspidx != portRspPut) */
3302
James Smart92d7f7b2007-06-17 19:56:38 -05003303 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05003304 /* At least one response entry has been freed */
3305 pring->stats.iocb_rsp_full++;
3306 /* SET RxRE_RSP in Chip Att register */
3307 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
3308 writel(status, phba->CAregaddr);
3309 readl(phba->CAregaddr); /* flush */
3310 }
3311 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
3312 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
3313 pring->stats.iocb_cmd_empty++;
3314
3315 /* Force update of the local copy of cmdGetInx */
3316 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
3317 lpfc_sli_resume_iocb(phba, pring);
3318
3319 if ((pring->lpfc_sli_cmd_available))
3320 (pring->lpfc_sli_cmd_available) (phba, pring);
3321
3322 }
3323
James Smart2e0fef82007-06-17 19:56:36 -05003324 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003325 return;
dea31012005-04-17 16:05:31 -05003326}
3327
James Smarte59058c2008-08-24 21:49:00 -04003328/**
James Smart4f774512009-05-22 14:52:35 -04003329 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3330 * @phba: Pointer to HBA context object.
3331 * @pring: Pointer to driver SLI ring object.
3332 * @mask: Host attention register mask for this ring.
3333 *
3334 * This function is called from the worker thread when there is a pending
3335 * ELS response iocb on the driver internal slow-path response iocb worker
3336 * queue. The caller does not hold any lock. The function will remove each
3337 * response iocb from the response worker queue and calls the handle
3338 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3339 **/
3340static void
3341lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3342 struct lpfc_sli_ring *pring, uint32_t mask)
3343{
3344 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04003345 struct hbq_dmabuf *dmabuf;
3346 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04003347 unsigned long iflag;
3348
James Smart45ed1192009-10-02 15:17:02 -04003349 spin_lock_irqsave(&phba->hbalock, iflag);
3350 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
3351 spin_unlock_irqrestore(&phba->hbalock, iflag);
3352 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04003353 /* Get the response iocb from the head of work queue */
3354 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04003355 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04003356 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04003357 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04003358
3359 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
3360 case CQE_CODE_COMPL_WQE:
3361 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
3362 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04003363 /* Translate ELS WCQE to response IOCBQ */
3364 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
3365 irspiocbq);
3366 if (irspiocbq)
3367 lpfc_sli_sp_handle_rspiocb(phba, pring,
3368 irspiocbq);
James Smart4d9ab992009-10-02 15:16:39 -04003369 break;
3370 case CQE_CODE_RECEIVE:
3371 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3372 cq_event);
3373 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3374 break;
3375 default:
3376 break;
3377 }
James Smart4f774512009-05-22 14:52:35 -04003378 }
3379}
3380
3381/**
James Smart3621a712009-04-06 18:47:14 -04003382 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003383 * @phba: Pointer to HBA context object.
3384 * @pring: Pointer to driver SLI ring object.
3385 *
3386 * This function aborts all iocbs in the given ring and frees all the iocb
3387 * objects in txq. This function issues an abort iocb for all the iocb commands
3388 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3389 * the return of this function. The caller is not required to hold any locks.
3390 **/
James Smart2e0fef82007-06-17 19:56:36 -05003391void
dea31012005-04-17 16:05:31 -05003392lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3393{
James Smart2534ba72007-04-25 09:52:20 -04003394 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003395 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003396
James Smart92d7f7b2007-06-17 19:56:38 -05003397 if (pring->ringno == LPFC_ELS_RING) {
3398 lpfc_fabric_abort_hba(phba);
3399 }
3400
dea31012005-04-17 16:05:31 -05003401 /* Error everything on txq and txcmplq
3402 * First do the txq.
3403 */
James Smart2e0fef82007-06-17 19:56:36 -05003404 spin_lock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003405 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05003406 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05003407
3408 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04003409 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3410 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3411
James Smart2e0fef82007-06-17 19:56:36 -05003412 spin_unlock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003413
James Smarta257bf92009-04-06 18:48:10 -04003414 /* Cancel all the IOCBs from the completions list */
3415 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3416 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003417}
3418
James Smarte59058c2008-08-24 21:49:00 -04003419/**
James Smart3621a712009-04-06 18:47:14 -04003420 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003421 * @phba: Pointer to HBA context object.
3422 *
3423 * This function flushes all iocbs in the fcp ring and frees all the iocb
3424 * objects in txq and txcmplq. This function will not issue abort iocbs
3425 * for all the iocb commands in txcmplq, they will just be returned with
3426 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3427 * slot has been permanently disabled.
3428 **/
3429void
3430lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3431{
3432 LIST_HEAD(txq);
3433 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003434 struct lpfc_sli *psli = &phba->sli;
3435 struct lpfc_sli_ring *pring;
3436
3437 /* Currently, only one fcp ring */
3438 pring = &psli->ring[psli->fcp_ring];
3439
3440 spin_lock_irq(&phba->hbalock);
3441 /* Retrieve everything on txq */
3442 list_splice_init(&pring->txq, &txq);
3443 pring->txq_cnt = 0;
3444
3445 /* Retrieve everything on the txcmplq */
3446 list_splice_init(&pring->txcmplq, &txcmplq);
3447 pring->txcmplq_cnt = 0;
3448 spin_unlock_irq(&phba->hbalock);
3449
3450 /* Flush the txq */
James Smarta257bf92009-04-06 18:48:10 -04003451 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3452 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003453
3454 /* Flush the txcmpq */
James Smarta257bf92009-04-06 18:48:10 -04003455 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3456 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003457}
3458
3459/**
James Smart3772a992009-05-22 14:50:54 -04003460 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003461 * @phba: Pointer to HBA context object.
3462 * @mask: Bit mask to be checked.
3463 *
3464 * This function reads the host status register and compares
3465 * with the provided bit mask to check if HBA completed
3466 * the restart. This function will wait in a loop for the
3467 * HBA to complete restart. If the HBA does not restart within
3468 * 15 iterations, the function will reset the HBA again. The
3469 * function returns 1 when HBA fail to restart otherwise returns
3470 * zero.
3471 **/
James Smart3772a992009-05-22 14:50:54 -04003472static int
3473lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003474{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003475 uint32_t status;
3476 int i = 0;
3477 int retval = 0;
dea31012005-04-17 16:05:31 -05003478
Jamie Wellnitz41415862006-02-28 19:25:27 -05003479 /* Read the HBA Host Status Register */
3480 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003481
Jamie Wellnitz41415862006-02-28 19:25:27 -05003482 /*
3483 * Check status register every 100ms for 5 retries, then every
3484 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3485 * every 2.5 sec for 4.
3486 * Break our of the loop if errors occurred during init.
3487 */
3488 while (((status & mask) != mask) &&
3489 !(status & HS_FFERM) &&
3490 i++ < 20) {
dea31012005-04-17 16:05:31 -05003491
Jamie Wellnitz41415862006-02-28 19:25:27 -05003492 if (i <= 5)
3493 msleep(10);
3494 else if (i <= 10)
3495 msleep(500);
3496 else
3497 msleep(2500);
dea31012005-04-17 16:05:31 -05003498
Jamie Wellnitz41415862006-02-28 19:25:27 -05003499 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003500 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003501 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003502 lpfc_sli_brdrestart(phba);
3503 }
3504 /* Read the HBA Host Status Register */
3505 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003506 }
dea31012005-04-17 16:05:31 -05003507
Jamie Wellnitz41415862006-02-28 19:25:27 -05003508 /* Check to see if any errors occurred during init */
3509 if ((status & HS_FFERM) || (i >= 20)) {
James Smarte40a02c2010-02-26 14:13:54 -05003510 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3511 "2751 Adapter failed to restart, "
3512 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3513 status,
3514 readl(phba->MBslimaddr + 0xa8),
3515 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003516 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003517 retval = 1;
3518 }
dea31012005-04-17 16:05:31 -05003519
Jamie Wellnitz41415862006-02-28 19:25:27 -05003520 return retval;
dea31012005-04-17 16:05:31 -05003521}
3522
James Smartda0436e2009-05-22 14:51:39 -04003523/**
3524 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3525 * @phba: Pointer to HBA context object.
3526 * @mask: Bit mask to be checked.
3527 *
3528 * This function checks the host status register to check if HBA is
3529 * ready. This function will wait in a loop for the HBA to be ready
3530 * If the HBA is not ready , the function will will reset the HBA PCI
3531 * function again. The function returns 1 when HBA fail to be ready
3532 * otherwise returns zero.
3533 **/
3534static int
3535lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3536{
3537 uint32_t status;
3538 int retval = 0;
3539
3540 /* Read the HBA Host Status Register */
3541 status = lpfc_sli4_post_status_check(phba);
3542
3543 if (status) {
3544 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3545 lpfc_sli_brdrestart(phba);
3546 status = lpfc_sli4_post_status_check(phba);
3547 }
3548
3549 /* Check to see if any errors occurred during init */
3550 if (status) {
3551 phba->link_state = LPFC_HBA_ERROR;
3552 retval = 1;
3553 } else
3554 phba->sli4_hba.intr_enable = 0;
3555
3556 return retval;
3557}
3558
3559/**
3560 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3561 * @phba: Pointer to HBA context object.
3562 * @mask: Bit mask to be checked.
3563 *
3564 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3565 * from the API jump table function pointer from the lpfc_hba struct.
3566 **/
3567int
3568lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3569{
3570 return phba->lpfc_sli_brdready(phba, mask);
3571}
3572
James Smart92908312006-03-07 15:04:13 -05003573#define BARRIER_TEST_PATTERN (0xdeadbeef)
3574
James Smarte59058c2008-08-24 21:49:00 -04003575/**
James Smart3621a712009-04-06 18:47:14 -04003576 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003577 * @phba: Pointer to HBA context object.
3578 *
3579 * This function is called before resetting an HBA. This
3580 * function requests HBA to quiesce DMAs before a reset.
3581 **/
James Smart2e0fef82007-06-17 19:56:36 -05003582void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003583{
James Smart65a29c12006-07-06 15:50:50 -04003584 uint32_t __iomem *resp_buf;
3585 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003586 volatile uint32_t mbox;
3587 uint32_t hc_copy;
3588 int i;
3589 uint8_t hdrtype;
3590
3591 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3592 if (hdrtype != 0x80 ||
3593 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3594 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3595 return;
3596
3597 /*
3598 * Tell the other part of the chip to suspend temporarily all
3599 * its DMA activity.
3600 */
James Smart65a29c12006-07-06 15:50:50 -04003601 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003602
3603 /* Disable the error attention */
3604 hc_copy = readl(phba->HCregaddr);
3605 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3606 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003607 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003608
3609 if (readl(phba->HAregaddr) & HA_ERATT) {
3610 /* Clear Chip error bit */
3611 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003612 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003613 }
3614
3615 mbox = 0;
3616 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3617 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3618
3619 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003620 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003621 writel(mbox, mbox_buf);
3622
3623 for (i = 0;
3624 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3625 mdelay(1);
3626
3627 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003628 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003629 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003630 goto restore_hc;
3631 else
3632 goto clear_errat;
3633 }
3634
3635 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3636 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3637 mdelay(1);
3638
3639clear_errat:
3640
3641 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3642 mdelay(1);
3643
3644 if (readl(phba->HAregaddr) & HA_ERATT) {
3645 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003646 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003647 }
3648
3649restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003650 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003651 writel(hc_copy, phba->HCregaddr);
3652 readl(phba->HCregaddr); /* flush */
3653}
3654
James Smarte59058c2008-08-24 21:49:00 -04003655/**
James Smart3621a712009-04-06 18:47:14 -04003656 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003657 * @phba: Pointer to HBA context object.
3658 *
3659 * This function issues a kill_board mailbox command and waits for
3660 * the error attention interrupt. This function is called for stopping
3661 * the firmware processing. The caller is not required to hold any
3662 * locks. This function calls lpfc_hba_down_post function to free
3663 * any pending commands after the kill. The function will return 1 when it
3664 * fails to kill the board else will return 0.
3665 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003666int
James Smart2e0fef82007-06-17 19:56:36 -05003667lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003668{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003669 struct lpfc_sli *psli;
3670 LPFC_MBOXQ_t *pmb;
3671 uint32_t status;
3672 uint32_t ha_copy;
3673 int retval;
3674 int i = 0;
3675
3676 psli = &phba->sli;
3677
3678 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003679 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003680 "0329 Kill HBA Data: x%x x%x\n",
3681 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003682
James Smart98c9ea52007-10-27 13:37:33 -04003683 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3684 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003685 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003686
3687 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003688 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003689 status = readl(phba->HCregaddr);
3690 status &= ~HC_ERINT_ENA;
3691 writel(status, phba->HCregaddr);
3692 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003693 phba->link_flag |= LS_IGNORE_ERATT;
3694 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003695
3696 lpfc_kill_board(phba, pmb);
3697 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3698 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3699
3700 if (retval != MBX_SUCCESS) {
3701 if (retval != MBX_BUSY)
3702 mempool_free(pmb, phba->mbox_mem_pool);
James Smarte40a02c2010-02-26 14:13:54 -05003703 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3704 "2752 KILL_BOARD command failed retval %d\n",
3705 retval);
James Smart2e0fef82007-06-17 19:56:36 -05003706 spin_lock_irq(&phba->hbalock);
3707 phba->link_flag &= ~LS_IGNORE_ERATT;
3708 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003709 return 1;
3710 }
3711
James Smartf4b4c682009-05-22 14:53:12 -04003712 spin_lock_irq(&phba->hbalock);
3713 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3714 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003715
Jamie Wellnitz41415862006-02-28 19:25:27 -05003716 mempool_free(pmb, phba->mbox_mem_pool);
3717
3718 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3719 * attention every 100ms for 3 seconds. If we don't get ERATT after
3720 * 3 seconds we still set HBA_ERROR state because the status of the
3721 * board is now undefined.
3722 */
3723 ha_copy = readl(phba->HAregaddr);
3724
3725 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3726 mdelay(100);
3727 ha_copy = readl(phba->HAregaddr);
3728 }
3729
3730 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003731 if (ha_copy & HA_ERATT) {
3732 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003733 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003734 }
James Smart2e0fef82007-06-17 19:56:36 -05003735 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003736 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003737 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003738 phba->link_flag &= ~LS_IGNORE_ERATT;
3739 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003740
Jamie Wellnitz41415862006-02-28 19:25:27 -05003741 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003742 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003743
James Smart2e0fef82007-06-17 19:56:36 -05003744 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003745}
3746
James Smarte59058c2008-08-24 21:49:00 -04003747/**
James Smart3772a992009-05-22 14:50:54 -04003748 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003749 * @phba: Pointer to HBA context object.
3750 *
3751 * This function resets the HBA by writing HC_INITFF to the control
3752 * register. After the HBA resets, this function resets all the iocb ring
3753 * indices. This function disables PCI layer parity checking during
3754 * the reset.
3755 * This function returns 0 always.
3756 * The caller is not required to hold any locks.
3757 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003758int
James Smart2e0fef82007-06-17 19:56:36 -05003759lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003760{
3761 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05003762 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003763 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05003764 int i;
dea31012005-04-17 16:05:31 -05003765
Jamie Wellnitz41415862006-02-28 19:25:27 -05003766 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05003767
Jamie Wellnitz41415862006-02-28 19:25:27 -05003768 /* Reset HBA */
3769 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003770 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003771 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05003772
3773 /* perform board reset */
3774 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003775 phba->link_events = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003776 phba->pport->fc_myDID = 0;
3777 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05003778
Jamie Wellnitz41415862006-02-28 19:25:27 -05003779 /* Turn off parity checking and serr during the physical reset */
3780 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3781 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3782 (cfg_value &
3783 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3784
James Smart3772a992009-05-22 14:50:54 -04003785 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3786
Jamie Wellnitz41415862006-02-28 19:25:27 -05003787 /* Now toggle INITFF bit in the Host Control Register */
3788 writel(HC_INITFF, phba->HCregaddr);
3789 mdelay(1);
3790 readl(phba->HCregaddr); /* flush */
3791 writel(0, phba->HCregaddr);
3792 readl(phba->HCregaddr); /* flush */
3793
3794 /* Restore PCI cmd register */
3795 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05003796
3797 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05003798 for (i = 0; i < psli->num_rings; i++) {
3799 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05003800 pring->flag = 0;
3801 pring->rspidx = 0;
3802 pring->next_cmdidx = 0;
3803 pring->local_getidx = 0;
3804 pring->cmdidx = 0;
3805 pring->missbufcnt = 0;
3806 }
dea31012005-04-17 16:05:31 -05003807
James Smart2e0fef82007-06-17 19:56:36 -05003808 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003809 return 0;
3810}
3811
James Smarte59058c2008-08-24 21:49:00 -04003812/**
James Smartda0436e2009-05-22 14:51:39 -04003813 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3814 * @phba: Pointer to HBA context object.
3815 *
3816 * This function resets a SLI4 HBA. This function disables PCI layer parity
3817 * checking during resets the device. The caller is not required to hold
3818 * any locks.
3819 *
3820 * This function returns 0 always.
3821 **/
3822int
3823lpfc_sli4_brdreset(struct lpfc_hba *phba)
3824{
3825 struct lpfc_sli *psli = &phba->sli;
3826 uint16_t cfg_value;
3827 uint8_t qindx;
3828
3829 /* Reset HBA */
3830 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3831 "0295 Reset HBA Data: x%x x%x\n",
3832 phba->pport->port_state, psli->sli_flag);
3833
3834 /* perform board reset */
3835 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003836 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04003837 phba->pport->fc_myDID = 0;
3838 phba->pport->fc_prevDID = 0;
3839
James Smartda0436e2009-05-22 14:51:39 -04003840 spin_lock_irq(&phba->hbalock);
3841 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3842 phba->fcf.fcf_flag = 0;
3843 /* Clean up the child queue list for the CQs */
3844 list_del_init(&phba->sli4_hba.mbx_wq->list);
3845 list_del_init(&phba->sli4_hba.els_wq->list);
3846 list_del_init(&phba->sli4_hba.hdr_rq->list);
3847 list_del_init(&phba->sli4_hba.dat_rq->list);
3848 list_del_init(&phba->sli4_hba.mbx_cq->list);
3849 list_del_init(&phba->sli4_hba.els_cq->list);
James Smartda0436e2009-05-22 14:51:39 -04003850 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3851 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3852 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3853 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3854 spin_unlock_irq(&phba->hbalock);
3855
3856 /* Now physically reset the device */
3857 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3858 "0389 Performing PCI function reset!\n");
James Smartbe858b62010-12-15 17:57:20 -05003859
3860 /* Turn off parity checking and serr during the physical reset */
3861 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3862 pci_write_config_word(phba->pcidev, PCI_COMMAND, (cfg_value &
3863 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3864
James Smartda0436e2009-05-22 14:51:39 -04003865 /* Perform FCoE PCI function reset */
3866 lpfc_pci_function_reset(phba);
3867
James Smartbe858b62010-12-15 17:57:20 -05003868 /* Restore PCI cmd register */
3869 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
3870
James Smartda0436e2009-05-22 14:51:39 -04003871 return 0;
3872}
3873
3874/**
3875 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04003876 * @phba: Pointer to HBA context object.
3877 *
3878 * This function is called in the SLI initialization code path to
3879 * restart the HBA. The caller is not required to hold any lock.
3880 * This function writes MBX_RESTART mailbox command to the SLIM and
3881 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3882 * function to free any pending commands. The function enables
3883 * POST only during the first initialization. The function returns zero.
3884 * The function does not guarantee completion of MBX_RESTART mailbox
3885 * command before the return of this function.
3886 **/
James Smartda0436e2009-05-22 14:51:39 -04003887static int
3888lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003889{
3890 MAILBOX_t *mb;
3891 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003892 volatile uint32_t word0;
3893 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04003894 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003895
James Smart2e0fef82007-06-17 19:56:36 -05003896 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003897
James Smart0d878412009-10-02 15:16:56 -04003898 /* Take PCIe device Advanced Error Reporting (AER) state */
3899 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3900
Jamie Wellnitz41415862006-02-28 19:25:27 -05003901 psli = &phba->sli;
3902
3903 /* Restart HBA */
3904 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003905 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003906 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003907
3908 word0 = 0;
3909 mb = (MAILBOX_t *) &word0;
3910 mb->mbxCommand = MBX_RESTART;
3911 mb->mbxHc = 1;
3912
James Smart92908312006-03-07 15:04:13 -05003913 lpfc_reset_barrier(phba);
3914
Jamie Wellnitz41415862006-02-28 19:25:27 -05003915 to_slim = phba->MBslimaddr;
3916 writel(*(uint32_t *) mb, to_slim);
3917 readl(to_slim); /* flush */
3918
3919 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05003920 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003921 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05003922 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05003923 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04003924 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003925 writel(*(uint32_t *) mb, to_slim);
3926 readl(to_slim); /* flush */
3927
3928 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003929 phba->pport->stopped = 0;
3930 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04003931 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003932 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003933
James Smart64ba8812006-08-02 15:24:34 -04003934 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3935 psli->stats_start = get_seconds();
3936
James Smarteaf15d52008-12-04 22:39:29 -05003937 /* Give the INITFF and Post time to settle. */
3938 mdelay(100);
dea31012005-04-17 16:05:31 -05003939
James Smart0d878412009-10-02 15:16:56 -04003940 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3941 if (hba_aer_enabled)
3942 pci_disable_pcie_error_reporting(phba->pcidev);
3943
Jamie Wellnitz41415862006-02-28 19:25:27 -05003944 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05003945
3946 return 0;
3947}
3948
James Smarte59058c2008-08-24 21:49:00 -04003949/**
James Smartda0436e2009-05-22 14:51:39 -04003950 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3951 * @phba: Pointer to HBA context object.
3952 *
3953 * This function is called in the SLI initialization code path to restart
3954 * a SLI4 HBA. The caller is not required to hold any lock.
3955 * At the end of the function, it calls lpfc_hba_down_post function to
3956 * free any pending commands.
3957 **/
3958static int
3959lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3960{
3961 struct lpfc_sli *psli = &phba->sli;
James Smart75baf692010-06-08 18:31:21 -04003962 uint32_t hba_aer_enabled;
James Smartda0436e2009-05-22 14:51:39 -04003963
3964 /* Restart HBA */
3965 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3966 "0296 Restart HBA Data: x%x x%x\n",
3967 phba->pport->port_state, psli->sli_flag);
3968
James Smart75baf692010-06-08 18:31:21 -04003969 /* Take PCIe device Advanced Error Reporting (AER) state */
3970 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3971
James Smartda0436e2009-05-22 14:51:39 -04003972 lpfc_sli4_brdreset(phba);
3973
3974 spin_lock_irq(&phba->hbalock);
3975 phba->pport->stopped = 0;
3976 phba->link_state = LPFC_INIT_START;
3977 phba->hba_flag = 0;
3978 spin_unlock_irq(&phba->hbalock);
3979
3980 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3981 psli->stats_start = get_seconds();
3982
James Smart75baf692010-06-08 18:31:21 -04003983 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3984 if (hba_aer_enabled)
3985 pci_disable_pcie_error_reporting(phba->pcidev);
3986
James Smartda0436e2009-05-22 14:51:39 -04003987 lpfc_hba_down_post(phba);
3988
3989 return 0;
3990}
3991
3992/**
3993 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3994 * @phba: Pointer to HBA context object.
3995 *
3996 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3997 * API jump table function pointer from the lpfc_hba struct.
3998**/
3999int
4000lpfc_sli_brdrestart(struct lpfc_hba *phba)
4001{
4002 return phba->lpfc_sli_brdrestart(phba);
4003}
4004
4005/**
James Smart3621a712009-04-06 18:47:14 -04004006 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04004007 * @phba: Pointer to HBA context object.
4008 *
4009 * This function is called after a HBA restart to wait for successful
4010 * restart of the HBA. Successful restart of the HBA is indicated by
4011 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4012 * iteration, the function will restart the HBA again. The function returns
4013 * zero if HBA successfully restarted else returns negative error code.
4014 **/
dea31012005-04-17 16:05:31 -05004015static int
4016lpfc_sli_chipset_init(struct lpfc_hba *phba)
4017{
4018 uint32_t status, i = 0;
4019
4020 /* Read the HBA Host Status Register */
4021 status = readl(phba->HSregaddr);
4022
4023 /* Check status register to see what current state is */
4024 i = 0;
4025 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
4026
James Smartdcf2a4e2010-09-29 11:18:53 -04004027 /* Check every 10ms for 10 retries, then every 100ms for 90
4028 * retries, then every 1 sec for 50 retires for a total of
4029 * ~60 seconds before reset the board again and check every
4030 * 1 sec for 50 retries. The up to 60 seconds before the
4031 * board ready is required by the Falcon FIPS zeroization
4032 * complete, and any reset the board in between shall cause
4033 * restart of zeroization, further delay the board ready.
dea31012005-04-17 16:05:31 -05004034 */
James Smartdcf2a4e2010-09-29 11:18:53 -04004035 if (i++ >= 200) {
dea31012005-04-17 16:05:31 -05004036 /* Adapter failed to init, timeout, status reg
4037 <status> */
James Smarted957682007-06-17 19:56:37 -05004038 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004039 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004040 "timeout, status reg x%x, "
4041 "FW Data: A8 x%x AC x%x\n", status,
4042 readl(phba->MBslimaddr + 0xa8),
4043 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004044 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004045 return -ETIMEDOUT;
4046 }
4047
4048 /* Check to see if any errors occurred during init */
4049 if (status & HS_FFERM) {
4050 /* ERROR: During chipset initialization */
4051 /* Adapter failed to init, chipset, status reg
4052 <status> */
James Smarted957682007-06-17 19:56:37 -05004053 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004054 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05004055 "chipset, status reg x%x, "
4056 "FW Data: A8 x%x AC x%x\n", status,
4057 readl(phba->MBslimaddr + 0xa8),
4058 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004059 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004060 return -EIO;
4061 }
4062
James Smartdcf2a4e2010-09-29 11:18:53 -04004063 if (i <= 10)
dea31012005-04-17 16:05:31 -05004064 msleep(10);
James Smartdcf2a4e2010-09-29 11:18:53 -04004065 else if (i <= 100)
4066 msleep(100);
4067 else
4068 msleep(1000);
dea31012005-04-17 16:05:31 -05004069
James Smartdcf2a4e2010-09-29 11:18:53 -04004070 if (i == 150) {
4071 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05004072 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004073 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004074 }
4075 /* Read the HBA Host Status Register */
4076 status = readl(phba->HSregaddr);
4077 }
4078
4079 /* Check to see if any errors occurred during init */
4080 if (status & HS_FFERM) {
4081 /* ERROR: During chipset initialization */
4082 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05004083 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004084 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05004085 "status reg x%x, "
4086 "FW Data: A8 x%x AC x%x\n", status,
4087 readl(phba->MBslimaddr + 0xa8),
4088 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05004089 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004090 return -EIO;
4091 }
4092
4093 /* Clear all interrupt enable conditions */
4094 writel(0, phba->HCregaddr);
4095 readl(phba->HCregaddr); /* flush */
4096
4097 /* setup host attn register */
4098 writel(0xffffffff, phba->HAregaddr);
4099 readl(phba->HAregaddr); /* flush */
4100 return 0;
4101}
4102
James Smarte59058c2008-08-24 21:49:00 -04004103/**
James Smart3621a712009-04-06 18:47:14 -04004104 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04004105 *
4106 * This function calculates and returns the number of HBQs required to be
4107 * configured.
4108 **/
James Smart78b2d852007-08-02 11:10:21 -04004109int
James Smarted957682007-06-17 19:56:37 -05004110lpfc_sli_hbq_count(void)
4111{
James Smart92d7f7b2007-06-17 19:56:38 -05004112 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05004113}
4114
James Smarte59058c2008-08-24 21:49:00 -04004115/**
James Smart3621a712009-04-06 18:47:14 -04004116 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004117 *
4118 * This function adds the number of hbq entries in every HBQ to get
4119 * the total number of hbq entries required for the HBA and returns
4120 * the total count.
4121 **/
James Smarted957682007-06-17 19:56:37 -05004122static int
4123lpfc_sli_hbq_entry_count(void)
4124{
4125 int hbq_count = lpfc_sli_hbq_count();
4126 int count = 0;
4127 int i;
4128
4129 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05004130 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05004131 return count;
4132}
4133
James Smarte59058c2008-08-24 21:49:00 -04004134/**
James Smart3621a712009-04-06 18:47:14 -04004135 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04004136 *
4137 * This function calculates amount of memory required for all hbq entries
4138 * to be configured and returns the total memory required.
4139 **/
dea31012005-04-17 16:05:31 -05004140int
James Smarted957682007-06-17 19:56:37 -05004141lpfc_sli_hbq_size(void)
4142{
4143 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
4144}
4145
James Smarte59058c2008-08-24 21:49:00 -04004146/**
James Smart3621a712009-04-06 18:47:14 -04004147 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04004148 * @phba: Pointer to HBA context object.
4149 *
4150 * This function is called during the SLI initialization to configure
4151 * all the HBQs and post buffers to the HBQ. The caller is not
4152 * required to hold any locks. This function will return zero if successful
4153 * else it will return negative error code.
4154 **/
James Smarted957682007-06-17 19:56:37 -05004155static int
4156lpfc_sli_hbq_setup(struct lpfc_hba *phba)
4157{
4158 int hbq_count = lpfc_sli_hbq_count();
4159 LPFC_MBOXQ_t *pmb;
4160 MAILBOX_t *pmbox;
4161 uint32_t hbqno;
4162 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05004163
James Smart92d7f7b2007-06-17 19:56:38 -05004164 /* Get a Mailbox buffer to setup mailbox
4165 * commands for HBA initialization
4166 */
James Smarted957682007-06-17 19:56:37 -05004167 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4168
4169 if (!pmb)
4170 return -ENOMEM;
4171
James Smart04c68492009-05-22 14:52:52 -04004172 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05004173
4174 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4175 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05004176 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05004177
4178 hbq_entry_index = 0;
4179 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
4180 phba->hbqs[hbqno].next_hbqPutIdx = 0;
4181 phba->hbqs[hbqno].hbqPutIdx = 0;
4182 phba->hbqs[hbqno].local_hbqGetIdx = 0;
4183 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05004184 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04004185 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
4186 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05004187 hbq_entry_index += phba->hbqs[hbqno].entry_count;
4188
4189 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
4190 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4191 mbxStatus <status>, ring <num> */
4192
4193 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004194 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004195 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05004196 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004197 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05004198 pmbox->mbxStatus, hbqno);
4199
4200 phba->link_state = LPFC_HBA_ERROR;
4201 mempool_free(pmb, phba->mbox_mem_pool);
James Smart6e7288d2010-06-07 15:23:35 -04004202 return -ENXIO;
James Smarted957682007-06-17 19:56:37 -05004203 }
4204 }
4205 phba->hbq_count = hbq_count;
4206
James Smarted957682007-06-17 19:56:37 -05004207 mempool_free(pmb, phba->mbox_mem_pool);
4208
James Smart92d7f7b2007-06-17 19:56:38 -05004209 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04004210 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
4211 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05004212 return 0;
4213}
4214
James Smarte59058c2008-08-24 21:49:00 -04004215/**
James Smart4f774512009-05-22 14:52:35 -04004216 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4217 * @phba: Pointer to HBA context object.
4218 *
4219 * This function is called during the SLI initialization to configure
4220 * all the HBQs and post buffers to the HBQ. The caller is not
4221 * required to hold any locks. This function will return zero if successful
4222 * else it will return negative error code.
4223 **/
4224static int
4225lpfc_sli4_rb_setup(struct lpfc_hba *phba)
4226{
4227 phba->hbq_in_use = 1;
4228 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
4229 phba->hbq_count = 1;
4230 /* Initially populate or replenish the HBQs */
4231 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
4232 return 0;
4233}
4234
4235/**
James Smart3621a712009-04-06 18:47:14 -04004236 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04004237 * @phba: Pointer to HBA context object.
4238 * @sli_mode: sli mode - 2/3
4239 *
4240 * This function is called by the sli intialization code path
4241 * to issue config_port mailbox command. This function restarts the
4242 * HBA firmware and issues a config_port mailbox command to configure
4243 * the SLI interface in the sli mode specified by sli_mode
4244 * variable. The caller is not required to hold any locks.
4245 * The function returns 0 if successful, else returns negative error
4246 * code.
4247 **/
James Smart93996272008-08-24 21:50:30 -04004248int
4249lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05004250{
4251 LPFC_MBOXQ_t *pmb;
4252 uint32_t resetcount = 0, rc = 0, done = 0;
4253
4254 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4255 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05004256 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05004257 return -ENOMEM;
4258 }
4259
James Smarted957682007-06-17 19:56:37 -05004260 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05004261 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05004262 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004263 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004264 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05004265 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004266 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05004267 rc = lpfc_sli_chipset_init(phba);
4268 if (rc)
4269 break;
4270
James Smart2e0fef82007-06-17 19:56:36 -05004271 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04004272 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004273 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004274 resetcount++;
4275
James Smarted957682007-06-17 19:56:37 -05004276 /* Call pre CONFIG_PORT mailbox command initialization. A
4277 * value of 0 means the call was successful. Any other
4278 * nonzero value is a failure, but if ERESTART is returned,
4279 * the driver may reset the HBA and try again.
4280 */
dea31012005-04-17 16:05:31 -05004281 rc = lpfc_config_port_prep(phba);
4282 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05004283 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05004284 continue;
James Smart34b02dc2008-08-24 21:49:55 -04004285 } else if (rc)
dea31012005-04-17 16:05:31 -05004286 break;
James Smart2e0fef82007-06-17 19:56:36 -05004287 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05004288 lpfc_config_port(phba, pmb);
4289 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04004290 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
4291 LPFC_SLI3_HBQ_ENABLED |
4292 LPFC_SLI3_CRP_ENABLED |
James Smartbc739052010-08-04 16:11:18 -04004293 LPFC_SLI3_BG_ENABLED |
4294 LPFC_SLI3_DSS_ENABLED);
James Smarted957682007-06-17 19:56:37 -05004295 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05004296 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004297 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004298 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04004299 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05004300 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04004301 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004302 spin_unlock_irq(&phba->hbalock);
4303 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04004304 } else {
4305 /* Allow asynchronous mailbox command to go through */
4306 spin_lock_irq(&phba->hbalock);
4307 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4308 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05004309 done = 1;
James Smart04c68492009-05-22 14:52:52 -04004310 }
dea31012005-04-17 16:05:31 -05004311 }
James Smarted957682007-06-17 19:56:37 -05004312 if (!done) {
4313 rc = -EINVAL;
4314 goto do_prep_failed;
4315 }
James Smart04c68492009-05-22 14:52:52 -04004316 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
4317 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04004318 rc = -ENXIO;
4319 goto do_prep_failed;
4320 }
James Smart04c68492009-05-22 14:52:52 -04004321 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04004322 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004323 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
4324 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
4325 phba->max_vpi : phba->max_vports;
4326
James Smart34b02dc2008-08-24 21:49:55 -04004327 } else
4328 phba->max_vpi = 0;
James Smartbc739052010-08-04 16:11:18 -04004329 phba->fips_level = 0;
4330 phba->fips_spec_rev = 0;
4331 if (pmb->u.mb.un.varCfgPort.gdss) {
James Smart04c68492009-05-22 14:52:52 -04004332 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
James Smartbc739052010-08-04 16:11:18 -04004333 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
4334 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
4335 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4336 "2850 Security Crypto Active. FIPS x%d "
4337 "(Spec Rev: x%d)",
4338 phba->fips_level, phba->fips_spec_rev);
4339 }
4340 if (pmb->u.mb.un.varCfgPort.sec_err) {
4341 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4342 "2856 Config Port Security Crypto "
4343 "Error: x%x ",
4344 pmb->u.mb.un.varCfgPort.sec_err);
4345 }
James Smart04c68492009-05-22 14:52:52 -04004346 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04004347 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04004348 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04004349 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart6e7288d2010-06-07 15:23:35 -04004350
4351 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
4352 phba->port_gp = phba->mbox->us.s3_pgp.port;
James Smarte2a0a9d2008-12-04 22:40:02 -05004353
4354 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04004355 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05004356 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
4357 else
4358 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
4359 "0443 Adapter did not grant "
4360 "BlockGuard\n");
4361 }
James Smart34b02dc2008-08-24 21:49:55 -04004362 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05004363 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04004364 phba->port_gp = phba->mbox->us.s2.port;
James Smartd7c255b2008-08-24 21:50:00 -04004365 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05004366 }
James Smart92d7f7b2007-06-17 19:56:38 -05004367do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05004368 mempool_free(pmb, phba->mbox_mem_pool);
4369 return rc;
4370}
4371
James Smarte59058c2008-08-24 21:49:00 -04004372
4373/**
James Smart3621a712009-04-06 18:47:14 -04004374 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04004375 * @phba: Pointer to HBA context object.
4376 *
4377 * This function is the main SLI intialization function. This function
4378 * is called by the HBA intialization code, HBA reset code and HBA
4379 * error attention handler code. Caller is not required to hold any
4380 * locks. This function issues config_port mailbox command to configure
4381 * the SLI, setup iocb rings and HBQ rings. In the end the function
4382 * calls the config_port_post function to issue init_link mailbox
4383 * command and to start the discovery. The function will return zero
4384 * if successful, else it will return negative error code.
4385 **/
James Smarted957682007-06-17 19:56:37 -05004386int
4387lpfc_sli_hba_setup(struct lpfc_hba *phba)
4388{
4389 uint32_t rc;
James Smart92d7f7b2007-06-17 19:56:38 -05004390 int mode = 3;
James Smarted957682007-06-17 19:56:37 -05004391
4392 switch (lpfc_sli_mode) {
4393 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004394 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004396 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004397 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04004398 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004399 break;
4400 }
James Smarted957682007-06-17 19:56:37 -05004401 mode = 2;
4402 break;
4403 case 0:
4404 case 3:
4405 break;
4406 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004407 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004408 "1819 Unrecognized lpfc_sli_mode "
4409 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004410
4411 break;
4412 }
4413
James Smart93996272008-08-24 21:50:30 -04004414 rc = lpfc_sli_config_port(phba, mode);
4415
James Smarted957682007-06-17 19:56:37 -05004416 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004417 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004418 "1820 Unable to select SLI-3. "
4419 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004420 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004421 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05004422 if (rc)
dea31012005-04-17 16:05:31 -05004423 goto lpfc_sli_hba_setup_error;
4424
James Smart0d878412009-10-02 15:16:56 -04004425 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4426 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4427 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4428 if (!rc) {
4429 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4430 "2709 This device supports "
4431 "Advanced Error Reporting (AER)\n");
4432 spin_lock_irq(&phba->hbalock);
4433 phba->hba_flag |= HBA_AER_ENABLED;
4434 spin_unlock_irq(&phba->hbalock);
4435 } else {
4436 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4437 "2708 This device does not support "
4438 "Advanced Error Reporting (AER)\n");
4439 phba->cfg_aer_support = 0;
4440 }
4441 }
4442
James Smarted957682007-06-17 19:56:37 -05004443 if (phba->sli_rev == 3) {
4444 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4445 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004446 } else {
4447 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4448 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004449 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004450 }
4451
4452 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004453 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4454 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004455 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004456
4457 if (rc)
4458 goto lpfc_sli_hba_setup_error;
4459
James Smart93996272008-08-24 21:50:30 -04004460 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004461 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4462 rc = lpfc_sli_hbq_setup(phba);
4463 if (rc)
4464 goto lpfc_sli_hba_setup_error;
4465 }
James Smart04c68492009-05-22 14:52:52 -04004466 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004467 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004468 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004469
4470 rc = lpfc_config_port_post(phba);
4471 if (rc)
4472 goto lpfc_sli_hba_setup_error;
4473
James Smarted957682007-06-17 19:56:37 -05004474 return rc;
4475
James Smart92d7f7b2007-06-17 19:56:38 -05004476lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004477 phba->link_state = LPFC_HBA_ERROR;
James Smarte40a02c2010-02-26 14:13:54 -05004478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004479 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004480 return rc;
4481}
4482
James Smartda0436e2009-05-22 14:51:39 -04004483/**
4484 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4485 * @phba: Pointer to HBA context object.
4486 * @mboxq: mailbox pointer.
4487 * This function issue a dump mailbox command to read config region
4488 * 23 and parse the records in the region and populate driver
4489 * data structure.
4490 **/
4491static int
4492lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4493 LPFC_MBOXQ_t *mboxq)
4494{
4495 struct lpfc_dmabuf *mp;
4496 struct lpfc_mqe *mqe;
4497 uint32_t data_length;
4498 int rc;
4499
4500 /* Program the default value of vlan_id and fc_map */
4501 phba->valid_vlan = 0;
4502 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4503 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4504 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4505
4506 mqe = &mboxq->u.mqe;
4507 if (lpfc_dump_fcoe_param(phba, mboxq))
4508 return -ENOMEM;
4509
4510 mp = (struct lpfc_dmabuf *) mboxq->context1;
4511 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4512
4513 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4514 "(%d):2571 Mailbox cmd x%x Status x%x "
4515 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4516 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4517 "CQ: x%x x%x x%x x%x\n",
4518 mboxq->vport ? mboxq->vport->vpi : 0,
4519 bf_get(lpfc_mqe_command, mqe),
4520 bf_get(lpfc_mqe_status, mqe),
4521 mqe->un.mb_words[0], mqe->un.mb_words[1],
4522 mqe->un.mb_words[2], mqe->un.mb_words[3],
4523 mqe->un.mb_words[4], mqe->un.mb_words[5],
4524 mqe->un.mb_words[6], mqe->un.mb_words[7],
4525 mqe->un.mb_words[8], mqe->un.mb_words[9],
4526 mqe->un.mb_words[10], mqe->un.mb_words[11],
4527 mqe->un.mb_words[12], mqe->un.mb_words[13],
4528 mqe->un.mb_words[14], mqe->un.mb_words[15],
4529 mqe->un.mb_words[16], mqe->un.mb_words[50],
4530 mboxq->mcqe.word0,
4531 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4532 mboxq->mcqe.trailer);
4533
4534 if (rc) {
4535 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4536 kfree(mp);
4537 return -EIO;
4538 }
4539 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004540 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004541 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4542 kfree(mp);
James Smartda0436e2009-05-22 14:51:39 -04004543 return -EIO;
James Smartd11e31d2009-06-10 17:23:06 -04004544 }
James Smartda0436e2009-05-22 14:51:39 -04004545
4546 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4547 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4548 kfree(mp);
4549 return 0;
4550}
4551
4552/**
4553 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4554 * @phba: pointer to lpfc hba data structure.
4555 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4556 * @vpd: pointer to the memory to hold resulting port vpd data.
4557 * @vpd_size: On input, the number of bytes allocated to @vpd.
4558 * On output, the number of data bytes in @vpd.
4559 *
4560 * This routine executes a READ_REV SLI4 mailbox command. In
4561 * addition, this routine gets the port vpd data.
4562 *
4563 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02004564 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -04004565 * -ENOMEM - could not allocated memory.
James Smartda0436e2009-05-22 14:51:39 -04004566 **/
4567static int
4568lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4569 uint8_t *vpd, uint32_t *vpd_size)
4570{
4571 int rc = 0;
4572 uint32_t dma_size;
4573 struct lpfc_dmabuf *dmabuf;
4574 struct lpfc_mqe *mqe;
4575
4576 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4577 if (!dmabuf)
4578 return -ENOMEM;
4579
4580 /*
4581 * Get a DMA buffer for the vpd data resulting from the READ_REV
4582 * mailbox command.
4583 */
4584 dma_size = *vpd_size;
4585 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4586 dma_size,
4587 &dmabuf->phys,
4588 GFP_KERNEL);
4589 if (!dmabuf->virt) {
4590 kfree(dmabuf);
4591 return -ENOMEM;
4592 }
4593 memset(dmabuf->virt, 0, dma_size);
4594
4595 /*
4596 * The SLI4 implementation of READ_REV conflicts at word1,
4597 * bits 31:16 and SLI4 adds vpd functionality not present
4598 * in SLI3. This code corrects the conflicts.
4599 */
4600 lpfc_read_rev(phba, mboxq);
4601 mqe = &mboxq->u.mqe;
4602 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4603 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4604 mqe->un.read_rev.word1 &= 0x0000FFFF;
4605 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4606 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4607
4608 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4609 if (rc) {
4610 dma_free_coherent(&phba->pcidev->dev, dma_size,
4611 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05004612 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04004613 return -EIO;
4614 }
4615
James Smartda0436e2009-05-22 14:51:39 -04004616 /*
4617 * The available vpd length cannot be bigger than the
4618 * DMA buffer passed to the port. Catch the less than
4619 * case and update the caller's size.
4620 */
4621 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4622 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4623
James Smartd7c47992010-06-08 18:31:54 -04004624 memcpy(vpd, dmabuf->virt, *vpd_size);
4625
James Smartda0436e2009-05-22 14:51:39 -04004626 dma_free_coherent(&phba->pcidev->dev, dma_size,
4627 dmabuf->virt, dmabuf->phys);
4628 kfree(dmabuf);
4629 return 0;
4630}
4631
4632/**
4633 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4634 * @phba: pointer to lpfc hba data structure.
4635 *
4636 * This routine is called to explicitly arm the SLI4 device's completion and
4637 * event queues
4638 **/
4639static void
4640lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4641{
4642 uint8_t fcp_eqidx;
4643
4644 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4645 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smartda0436e2009-05-22 14:51:39 -04004646 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4647 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4648 LPFC_QUEUE_REARM);
4649 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4650 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4651 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4652 LPFC_QUEUE_REARM);
4653}
4654
4655/**
4656 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4657 * @phba: Pointer to HBA context object.
4658 *
4659 * This function is the main SLI4 device intialization PCI function. This
4660 * function is called by the HBA intialization code, HBA reset code and
4661 * HBA error attention handler code. Caller is not required to hold any
4662 * locks.
4663 **/
4664int
4665lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4666{
4667 int rc;
4668 LPFC_MBOXQ_t *mboxq;
4669 struct lpfc_mqe *mqe;
4670 uint8_t *vpd;
4671 uint32_t vpd_size;
4672 uint32_t ftr_rsp = 0;
4673 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4674 struct lpfc_vport *vport = phba->pport;
4675 struct lpfc_dmabuf *mp;
4676
James Smart2fcee4b2010-12-15 17:57:46 -05004677 /*
4678 * TODO: Why does this routine execute these task in a different
4679 * order from probe?
4680 */
James Smartda0436e2009-05-22 14:51:39 -04004681 /* Perform a PCI function reset to start from clean */
4682 rc = lpfc_pci_function_reset(phba);
4683 if (unlikely(rc))
4684 return -ENODEV;
4685
4686 /* Check the HBA Host Status Register for readyness */
4687 rc = lpfc_sli4_post_status_check(phba);
4688 if (unlikely(rc))
4689 return -ENODEV;
4690 else {
4691 spin_lock_irq(&phba->hbalock);
4692 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4693 spin_unlock_irq(&phba->hbalock);
4694 }
4695
4696 /*
4697 * Allocate a single mailbox container for initializing the
4698 * port.
4699 */
4700 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4701 if (!mboxq)
4702 return -ENOMEM;
4703
4704 /*
4705 * Continue initialization with default values even if driver failed
4706 * to read FCoE param config regions
4707 */
4708 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4709 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
James Smarte4e74272009-07-19 10:01:38 -04004710 "2570 Failed to read FCoE parameters\n");
James Smartda0436e2009-05-22 14:51:39 -04004711
4712 /* Issue READ_REV to collect vpd and FW information. */
James Smart49198b32010-04-06 15:04:33 -04004713 vpd_size = SLI4_PAGE_SIZE;
James Smartda0436e2009-05-22 14:51:39 -04004714 vpd = kzalloc(vpd_size, GFP_KERNEL);
4715 if (!vpd) {
4716 rc = -ENOMEM;
4717 goto out_free_mbox;
4718 }
4719
4720 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
James Smart76a95d72010-11-20 23:11:48 -05004721 if (unlikely(rc)) {
4722 kfree(vpd);
4723 goto out_free_mbox;
4724 }
James Smartda0436e2009-05-22 14:51:39 -04004725 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04004726 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4727 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
James Smart76a95d72010-11-20 23:11:48 -05004728 phba->hba_flag |= HBA_FCOE_MODE;
4729 else
4730 phba->hba_flag &= ~HBA_FCOE_MODE;
James Smart45ed1192009-10-02 15:17:02 -04004731
4732 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4733 LPFC_DCBX_CEE_MODE)
4734 phba->hba_flag |= HBA_FIP_SUPPORT;
4735 else
4736 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4737
James Smartf1126682009-06-10 17:22:44 -04004738 if (phba->sli_rev != LPFC_SLI_REV4 ||
James Smart76a95d72010-11-20 23:11:48 -05004739 !(phba->hba_flag & HBA_FCOE_MODE)) {
James Smartda0436e2009-05-22 14:51:39 -04004740 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4741 "0376 READ_REV Error. SLI Level %d "
4742 "FCoE enabled %d\n",
James Smart76a95d72010-11-20 23:11:48 -05004743 phba->sli_rev, phba->hba_flag & HBA_FCOE_MODE);
James Smartda0436e2009-05-22 14:51:39 -04004744 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05004745 kfree(vpd);
4746 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004747 }
James Smartda0436e2009-05-22 14:51:39 -04004748 /*
4749 * Evaluate the read rev and vpd data. Populate the driver
4750 * state with the results. If this routine fails, the failure
4751 * is not fatal as the driver will use generic values.
4752 */
4753 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4754 if (unlikely(!rc)) {
4755 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4756 "0377 Error %d parsing vpd. "
4757 "Using defaults.\n", rc);
4758 rc = 0;
4759 }
James Smart76a95d72010-11-20 23:11:48 -05004760 kfree(vpd);
James Smartda0436e2009-05-22 14:51:39 -04004761
James Smartf1126682009-06-10 17:22:44 -04004762 /* Save information as VPD data */
4763 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4764 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4765 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4766 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4767 &mqe->un.read_rev);
4768 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4769 &mqe->un.read_rev);
4770 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4771 &mqe->un.read_rev);
4772 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4773 &mqe->un.read_rev);
4774 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4775 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4776 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4777 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4778 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4779 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4780 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4781 "(%d):0380 READ_REV Status x%x "
4782 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4783 mboxq->vport ? mboxq->vport->vpi : 0,
4784 bf_get(lpfc_mqe_status, mqe),
4785 phba->vpd.rev.opFwName,
4786 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4787 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04004788
4789 /*
4790 * Discover the port's supported feature set and match it against the
4791 * hosts requests.
4792 */
4793 lpfc_request_features(phba, mboxq);
4794 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4795 if (unlikely(rc)) {
4796 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05004797 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004798 }
4799
4800 /*
4801 * The port must support FCP initiator mode as this is the
4802 * only mode running in the host.
4803 */
4804 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4805 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4806 "0378 No support for fcpi mode.\n");
4807 ftr_rsp++;
4808 }
James Smartfedd3b72011-02-16 12:39:24 -05004809 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh, &mqe->un.req_ftrs))
4810 phba->sli3_options |= LPFC_SLI4_PERFH_ENABLED;
4811 else
4812 phba->sli3_options &= ~LPFC_SLI4_PERFH_ENABLED;
James Smartda0436e2009-05-22 14:51:39 -04004813 /*
4814 * If the port cannot support the host's requested features
4815 * then turn off the global config parameters to disable the
4816 * feature in the driver. This is not a fatal error.
4817 */
4818 if ((phba->cfg_enable_bg) &&
4819 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4820 ftr_rsp++;
4821
4822 if (phba->max_vpi && phba->cfg_enable_npiv &&
4823 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4824 ftr_rsp++;
4825
4826 if (ftr_rsp) {
4827 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4828 "0379 Feature Mismatch Data: x%08x %08x "
4829 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4830 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4831 phba->cfg_enable_npiv, phba->max_vpi);
4832 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4833 phba->cfg_enable_bg = 0;
4834 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4835 phba->cfg_enable_npiv = 0;
4836 }
4837
4838 /* These SLI3 features are assumed in SLI4 */
4839 spin_lock_irq(&phba->hbalock);
4840 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4841 spin_unlock_irq(&phba->hbalock);
4842
4843 /* Read the port's service parameters. */
James Smart9f1177a2010-02-26 14:12:57 -05004844 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
4845 if (rc) {
4846 phba->link_state = LPFC_HBA_ERROR;
4847 rc = -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -05004848 goto out_free_mbox;
James Smart9f1177a2010-02-26 14:12:57 -05004849 }
4850
James Smartda0436e2009-05-22 14:51:39 -04004851 mboxq->vport = vport;
4852 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4853 mp = (struct lpfc_dmabuf *) mboxq->context1;
4854 if (rc == MBX_SUCCESS) {
4855 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4856 rc = 0;
4857 }
4858
4859 /*
4860 * This memory was allocated by the lpfc_read_sparam routine. Release
4861 * it to the mbuf pool.
4862 */
4863 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4864 kfree(mp);
4865 mboxq->context1 = NULL;
4866 if (unlikely(rc)) {
4867 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4868 "0382 READ_SPARAM command failed "
4869 "status %d, mbxStatus x%x\n",
4870 rc, bf_get(lpfc_mqe_status, mqe));
4871 phba->link_state = LPFC_HBA_ERROR;
4872 rc = -EIO;
James Smart76a95d72010-11-20 23:11:48 -05004873 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004874 }
4875
4876 if (phba->cfg_soft_wwnn)
4877 u64_to_wwn(phba->cfg_soft_wwnn,
4878 vport->fc_sparam.nodeName.u.wwn);
4879 if (phba->cfg_soft_wwpn)
4880 u64_to_wwn(phba->cfg_soft_wwpn,
4881 vport->fc_sparam.portName.u.wwn);
4882 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4883 sizeof(struct lpfc_name));
4884 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4885 sizeof(struct lpfc_name));
4886
4887 /* Update the fc_host data structures with new wwn. */
4888 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4889 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4890
4891 /* Register SGL pool to the device using non-embedded mailbox command */
4892 rc = lpfc_sli4_post_sgl_list(phba);
4893 if (unlikely(rc)) {
4894 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004895 "0582 Error %d during sgl post operation\n",
4896 rc);
James Smartda0436e2009-05-22 14:51:39 -04004897 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05004898 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004899 }
4900
4901 /* Register SCSI SGL pool to the device */
4902 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4903 if (unlikely(rc)) {
4904 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004905 "0383 Error %d during scsi sgl post "
4906 "operation\n", rc);
James Smartda0436e2009-05-22 14:51:39 -04004907 /* Some Scsi buffers were moved to the abort scsi list */
4908 /* A pci function reset will repost them */
4909 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05004910 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004911 }
4912
4913 /* Post the rpi header region to the device. */
4914 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4915 if (unlikely(rc)) {
4916 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4917 "0393 Error %d during rpi post operation\n",
4918 rc);
4919 rc = -ENODEV;
James Smart76a95d72010-11-20 23:11:48 -05004920 goto out_free_mbox;
James Smartda0436e2009-05-22 14:51:39 -04004921 }
James Smartda0436e2009-05-22 14:51:39 -04004922
4923 /* Set up all the queues to the device */
4924 rc = lpfc_sli4_queue_setup(phba);
4925 if (unlikely(rc)) {
4926 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4927 "0381 Error %d during queue setup.\n ", rc);
4928 goto out_stop_timers;
4929 }
4930
4931 /* Arm the CQs and then EQs on device */
4932 lpfc_sli4_arm_cqeq_intr(phba);
4933
4934 /* Indicate device interrupt mode */
4935 phba->sli4_hba.intr_enable = 1;
4936
4937 /* Allow asynchronous mailbox command to go through */
4938 spin_lock_irq(&phba->hbalock);
4939 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4940 spin_unlock_irq(&phba->hbalock);
4941
4942 /* Post receive buffers to the device */
4943 lpfc_sli4_rb_setup(phba);
4944
James Smartfc2b9892010-02-26 14:15:29 -05004945 /* Reset HBA FCF states after HBA reset */
4946 phba->fcf.fcf_flag = 0;
4947 phba->fcf.current_rec.flag = 0;
4948
James Smartda0436e2009-05-22 14:51:39 -04004949 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04004950 mod_timer(&vport->els_tmofunc,
4951 jiffies + HZ * (phba->fc_ratov * 2));
James Smartda0436e2009-05-22 14:51:39 -04004952
4953 /* Start heart beat timer */
4954 mod_timer(&phba->hb_tmofunc,
4955 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4956 phba->hb_outstanding = 0;
4957 phba->last_completion_time = jiffies;
4958
4959 /* Start error attention (ERATT) polling timer */
4960 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4961
James Smart75baf692010-06-08 18:31:21 -04004962 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4963 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4964 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4965 if (!rc) {
4966 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4967 "2829 This device supports "
4968 "Advanced Error Reporting (AER)\n");
4969 spin_lock_irq(&phba->hbalock);
4970 phba->hba_flag |= HBA_AER_ENABLED;
4971 spin_unlock_irq(&phba->hbalock);
4972 } else {
4973 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4974 "2830 This device does not support "
4975 "Advanced Error Reporting (AER)\n");
4976 phba->cfg_aer_support = 0;
4977 }
4978 }
4979
James Smart76a95d72010-11-20 23:11:48 -05004980 if (!(phba->hba_flag & HBA_FCOE_MODE)) {
4981 /*
4982 * The FC Port needs to register FCFI (index 0)
4983 */
4984 lpfc_reg_fcfi(phba, mboxq);
4985 mboxq->vport = phba->pport;
4986 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4987 if (rc == MBX_SUCCESS)
4988 rc = 0;
4989 else
4990 goto out_unset_queue;
4991 }
James Smartda0436e2009-05-22 14:51:39 -04004992 /*
4993 * The port is ready, set the host's link state to LINK_DOWN
4994 * in preparation for link interrupts.
4995 */
James Smartda0436e2009-05-22 14:51:39 -04004996 spin_lock_irq(&phba->hbalock);
4997 phba->link_state = LPFC_LINK_DOWN;
4998 spin_unlock_irq(&phba->hbalock);
James Smartfedd3b72011-02-16 12:39:24 -05004999 if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK)
5000 rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
James Smart76a95d72010-11-20 23:11:48 -05005001out_unset_queue:
James Smartda0436e2009-05-22 14:51:39 -04005002 /* Unset all the queues set up in this routine when error out */
5003 if (rc)
5004 lpfc_sli4_queue_unset(phba);
James Smartda0436e2009-05-22 14:51:39 -04005005out_stop_timers:
5006 if (rc)
5007 lpfc_stop_hba_timers(phba);
James Smartda0436e2009-05-22 14:51:39 -04005008out_free_mbox:
5009 mempool_free(mboxq, phba->mbox_mem_pool);
5010 return rc;
5011}
James Smarte59058c2008-08-24 21:49:00 -04005012
5013/**
James Smart3621a712009-04-06 18:47:14 -04005014 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04005015 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05005016 *
James Smarte59058c2008-08-24 21:49:00 -04005017 * This is the callback function for mailbox timer. The mailbox
5018 * timer is armed when a new mailbox command is issued and the timer
5019 * is deleted when the mailbox complete. The function is called by
5020 * the kernel timer code when a mailbox does not complete within
5021 * expected time. This function wakes up the worker thread to
5022 * process the mailbox timeout and returns. All the processing is
5023 * done by the worker thread function lpfc_mbox_timeout_handler.
5024 **/
dea31012005-04-17 16:05:31 -05005025void
5026lpfc_mbox_timeout(unsigned long ptr)
5027{
James Smart92d7f7b2007-06-17 19:56:38 -05005028 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05005029 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05005030 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05005031
James Smart2e0fef82007-06-17 19:56:36 -05005032 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05005033 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05005034 if (!tmo_posted)
5035 phba->pport->work_port_events |= WORKER_MBOX_TMO;
5036 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
5037
James Smart5e9d9b82008-06-14 22:52:53 -04005038 if (!tmo_posted)
5039 lpfc_worker_wake_up(phba);
5040 return;
dea31012005-04-17 16:05:31 -05005041}
5042
James Smarte59058c2008-08-24 21:49:00 -04005043
5044/**
James Smart3621a712009-04-06 18:47:14 -04005045 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04005046 * @phba: Pointer to HBA context object.
5047 *
5048 * This function is called from worker thread when a mailbox command times out.
5049 * The caller is not required to hold any locks. This function will reset the
5050 * HBA and recover all the pending commands.
5051 **/
dea31012005-04-17 16:05:31 -05005052void
5053lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
5054{
James Smart2e0fef82007-06-17 19:56:36 -05005055 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04005056 MAILBOX_t *mb = &pmbox->u.mb;
James Smart1dcb58e2007-04-25 09:51:30 -04005057 struct lpfc_sli *psli = &phba->sli;
5058 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05005059
James Smarta257bf92009-04-06 18:48:10 -04005060 /* Check the pmbox pointer first. There is a race condition
5061 * between the mbox timeout handler getting executed in the
5062 * worklist and the mailbox actually completing. When this
5063 * race condition occurs, the mbox_active will be NULL.
5064 */
5065 spin_lock_irq(&phba->hbalock);
5066 if (pmbox == NULL) {
5067 lpfc_printf_log(phba, KERN_WARNING,
5068 LOG_MBOX | LOG_SLI,
5069 "0353 Active Mailbox cleared - mailbox timeout "
5070 "exiting\n");
5071 spin_unlock_irq(&phba->hbalock);
5072 return;
5073 }
5074
dea31012005-04-17 16:05:31 -05005075 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05005076 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04005077 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05005078 mb->mbxCommand,
5079 phba->pport->port_state,
5080 phba->sli.sli_flag,
5081 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04005082 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05005083
James Smart1dcb58e2007-04-25 09:51:30 -04005084 /* Setting state unknown so lpfc_sli_abort_iocb_ring
5085 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
5086 * it to fail all oustanding SCSI IO.
5087 */
James Smart2e0fef82007-06-17 19:56:36 -05005088 spin_lock_irq(&phba->pport->work_port_lock);
5089 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
5090 spin_unlock_irq(&phba->pport->work_port_lock);
5091 spin_lock_irq(&phba->hbalock);
5092 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04005093 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05005094 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04005095
5096 pring = &psli->ring[psli->fcp_ring];
5097 lpfc_sli_abort_iocb_ring(phba, pring);
5098
5099 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04005100 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04005101
5102 /* Reset the HBA device */
5103 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05005104}
5105
James Smarte59058c2008-08-24 21:49:00 -04005106/**
James Smart3772a992009-05-22 14:50:54 -04005107 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04005108 * @phba: Pointer to HBA context object.
5109 * @pmbox: Pointer to mailbox object.
5110 * @flag: Flag indicating how the mailbox need to be processed.
5111 *
5112 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04005113 * to submit a mailbox command to firmware with SLI-3 interface spec. This
5114 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04005115 * The mailbox command can be submitted in polling mode, in which case
5116 * this function will wait in a polling loop for the completion of the
5117 * mailbox.
5118 * If the mailbox is submitted in no_wait mode (not polling) the
5119 * function will submit the command and returns immediately without waiting
5120 * for the mailbox completion. The no_wait is supported only when HBA
5121 * is in SLI2/SLI3 mode - interrupts are enabled.
5122 * The SLI interface allows only one mailbox pending at a time. If the
5123 * mailbox is issued in polling mode and there is already a mailbox
5124 * pending, then the function will return an error. If the mailbox is issued
5125 * in NO_WAIT mode and there is a mailbox pending already, the function
5126 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
5127 * The sli layer owns the mailbox object until the completion of mailbox
5128 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
5129 * return codes the caller owns the mailbox command after the return of
5130 * the function.
5131 **/
James Smart3772a992009-05-22 14:50:54 -04005132static int
5133lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
5134 uint32_t flag)
dea31012005-04-17 16:05:31 -05005135{
dea31012005-04-17 16:05:31 -05005136 MAILBOX_t *mb;
James Smart2e0fef82007-06-17 19:56:36 -05005137 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05005138 uint32_t status, evtctr;
5139 uint32_t ha_copy;
5140 int i;
James Smart09372822008-01-11 01:52:54 -05005141 unsigned long timeout;
dea31012005-04-17 16:05:31 -05005142 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04005143 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05005144 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04005145 int processing_queue = 0;
5146
5147 spin_lock_irqsave(&phba->hbalock, drvr_flag);
5148 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04005149 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04005150 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04005151 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5152 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5153 return MBX_SUCCESS;
5154 }
James Smart58da1ff2008-04-07 10:15:56 -04005155 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04005156 pmbox = lpfc_mbox_get(phba);
5157 if (!pmbox) {
5158 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5159 return MBX_SUCCESS;
5160 }
5161 }
dea31012005-04-17 16:05:31 -05005162
James Smarted957682007-06-17 19:56:37 -05005163 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05005164 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05005165 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04005166 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05005167 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05005168 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04005169 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04005170 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05005171 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04005172 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05005173 }
5174 }
5175
Linas Vepstas8d63f372007-02-14 14:28:36 -06005176 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04005177 if (unlikely(pci_channel_offline(phba->pcidev))) {
5178 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5179 goto out_not_finished;
5180 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06005181
James Smarta257bf92009-04-06 18:48:10 -04005182 /* If HBA has a deferred error attention, fail the iocb. */
5183 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
5184 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5185 goto out_not_finished;
5186 }
5187
dea31012005-04-17 16:05:31 -05005188 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05005189
James Smart3772a992009-05-22 14:50:54 -04005190 mb = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05005191 status = MBX_SUCCESS;
5192
James Smart2e0fef82007-06-17 19:56:36 -05005193 if (phba->link_state == LPFC_HBA_ERROR) {
5194 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05005195
5196 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04005197 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5198 "(%d):0311 Mailbox command x%x cannot "
5199 "issue Data: x%x x%x\n",
5200 pmbox->vport ? pmbox->vport->vpi : 0,
5201 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04005202 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05005203 }
5204
James Smart92908312006-03-07 15:04:13 -05005205 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
5206 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
James Smart2e0fef82007-06-17 19:56:36 -05005207 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smart3772a992009-05-22 14:50:54 -04005208 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5209 "(%d):2528 Mailbox command x%x cannot "
5210 "issue Data: x%x x%x\n",
5211 pmbox->vport ? pmbox->vport->vpi : 0,
5212 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04005213 goto out_not_finished;
James Smart92908312006-03-07 15:04:13 -05005214 }
5215
dea31012005-04-17 16:05:31 -05005216 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5217 /* Polling for a mbox command when another one is already active
5218 * is not allowed in SLI. Also, the driver must have established
5219 * SLI2 mode to queue and process multiple mbox commands.
5220 */
5221
5222 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05005223 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05005224
5225 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04005226 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5227 "(%d):2529 Mailbox command x%x "
5228 "cannot issue Data: x%x x%x\n",
5229 pmbox->vport ? pmbox->vport->vpi : 0,
5230 pmbox->u.mb.mbxCommand,
5231 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04005232 goto out_not_finished;
dea31012005-04-17 16:05:31 -05005233 }
5234
James Smart3772a992009-05-22 14:50:54 -04005235 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05005236 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05005237 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04005238 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5239 "(%d):2530 Mailbox command x%x "
5240 "cannot issue Data: x%x x%x\n",
5241 pmbox->vport ? pmbox->vport->vpi : 0,
5242 pmbox->u.mb.mbxCommand,
5243 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04005244 goto out_not_finished;
dea31012005-04-17 16:05:31 -05005245 }
5246
dea31012005-04-17 16:05:31 -05005247 /* Another mailbox command is still being processed, queue this
5248 * command to be processed later.
5249 */
5250 lpfc_mbox_put(phba, pmbox);
5251
5252 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05005253 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04005254 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05005255 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05005256 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
5257 mb->mbxCommand, phba->pport->port_state,
5258 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05005259
5260 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05005261 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05005262
James Smart858c9f62007-06-17 19:56:39 -05005263 if (pmbox->vport) {
5264 lpfc_debugfs_disc_trc(pmbox->vport,
5265 LPFC_DISC_TRC_MBOX_VPORT,
5266 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
5267 (uint32_t)mb->mbxCommand,
5268 mb->un.varWords[0], mb->un.varWords[1]);
5269 }
5270 else {
5271 lpfc_debugfs_disc_trc(phba->pport,
5272 LPFC_DISC_TRC_MBOX,
5273 "MBOX Bsy: cmd:x%x mb:x%x x%x",
5274 (uint32_t)mb->mbxCommand,
5275 mb->un.varWords[0], mb->un.varWords[1]);
5276 }
5277
James Smart2e0fef82007-06-17 19:56:36 -05005278 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05005279 }
5280
dea31012005-04-17 16:05:31 -05005281 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5282
5283 /* If we are not polling, we MUST be in SLI2 mode */
5284 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04005285 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Jamie Wellnitz41415862006-02-28 19:25:27 -05005286 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05005287 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05005288 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05005289 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04005290 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5291 "(%d):2531 Mailbox command x%x "
5292 "cannot issue Data: x%x x%x\n",
5293 pmbox->vport ? pmbox->vport->vpi : 0,
5294 pmbox->u.mb.mbxCommand,
5295 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04005296 goto out_not_finished;
dea31012005-04-17 16:05:31 -05005297 }
5298 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04005299 mod_timer(&psli->mbox_tmo, (jiffies +
5300 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
dea31012005-04-17 16:05:31 -05005301 }
5302
5303 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05005304 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04005305 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05005306 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04005307 pmbox->vport ? pmbox->vport->vpi : 0,
James Smart92d7f7b2007-06-17 19:56:38 -05005308 mb->mbxCommand, phba->pport->port_state,
5309 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05005310
James Smart858c9f62007-06-17 19:56:39 -05005311 if (mb->mbxCommand != MBX_HEARTBEAT) {
5312 if (pmbox->vport) {
5313 lpfc_debugfs_disc_trc(pmbox->vport,
5314 LPFC_DISC_TRC_MBOX_VPORT,
5315 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5316 (uint32_t)mb->mbxCommand,
5317 mb->un.varWords[0], mb->un.varWords[1]);
5318 }
5319 else {
5320 lpfc_debugfs_disc_trc(phba->pport,
5321 LPFC_DISC_TRC_MBOX,
5322 "MBOX Send: cmd:x%x mb:x%x x%x",
5323 (uint32_t)mb->mbxCommand,
5324 mb->un.varWords[0], mb->un.varWords[1]);
5325 }
5326 }
5327
dea31012005-04-17 16:05:31 -05005328 psli->slistat.mbox_cmd++;
5329 evtctr = psli->slistat.mbox_event;
5330
5331 /* next set own bit for the adapter and copy over command word */
5332 mb->mbxOwner = OWN_CHIP;
5333
James Smart3772a992009-05-22 14:50:54 -04005334 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart7a470272010-03-15 11:25:20 -04005335 /* Populate mbox extension offset word. */
5336 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
5337 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
5338 = (uint8_t *)phba->mbox_ext
5339 - (uint8_t *)phba->mbox;
5340 }
5341
5342 /* Copy the mailbox extension data */
5343 if (pmbox->in_ext_byte_len && pmbox->context2) {
5344 lpfc_sli_pcimem_bcopy(pmbox->context2,
5345 (uint8_t *)phba->mbox_ext,
5346 pmbox->in_ext_byte_len);
5347 }
5348 /* Copy command data to host SLIM area */
James Smart34b02dc2008-08-24 21:49:55 -04005349 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05005350 } else {
James Smart7a470272010-03-15 11:25:20 -04005351 /* Populate mbox extension offset word. */
5352 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
5353 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
5354 = MAILBOX_HBA_EXT_OFFSET;
5355
5356 /* Copy the mailbox extension data */
5357 if (pmbox->in_ext_byte_len && pmbox->context2) {
5358 lpfc_memcpy_to_slim(phba->MBslimaddr +
5359 MAILBOX_HBA_EXT_OFFSET,
5360 pmbox->context2, pmbox->in_ext_byte_len);
5361
5362 }
James Smart92908312006-03-07 15:04:13 -05005363 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05005364 /* copy command data into host mbox for cmpl */
James Smart34b02dc2008-08-24 21:49:55 -04005365 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05005366 }
5367
5368 /* First copy mbox command data to HBA SLIM, skip past first
5369 word */
5370 to_slim = phba->MBslimaddr + sizeof (uint32_t);
5371 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
5372 MAILBOX_CMD_SIZE - sizeof (uint32_t));
5373
5374 /* Next copy over first word, with mbxOwner set */
James Smart34b02dc2008-08-24 21:49:55 -04005375 ldata = *((uint32_t *)mb);
dea31012005-04-17 16:05:31 -05005376 to_slim = phba->MBslimaddr;
5377 writel(ldata, to_slim);
5378 readl(to_slim); /* flush */
5379
5380 if (mb->mbxCommand == MBX_CONFIG_PORT) {
5381 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04005382 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05005383 }
5384 }
5385
5386 wmb();
dea31012005-04-17 16:05:31 -05005387
5388 switch (flag) {
5389 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05005390 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05005391 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05005392 /* Interrupt board to do it */
5393 writel(CA_MBATT, phba->CAregaddr);
5394 readl(phba->CAregaddr); /* flush */
5395 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05005396 break;
5397
5398 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05005399 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05005400 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05005401 /* Interrupt board to do it */
5402 writel(CA_MBATT, phba->CAregaddr);
5403 readl(phba->CAregaddr); /* flush */
5404
James Smart3772a992009-05-22 14:50:54 -04005405 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005406 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04005407 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05005408 word0 = le32_to_cpu(word0);
5409 } else {
5410 /* First read mbox status word */
5411 word0 = readl(phba->MBslimaddr);
5412 }
5413
5414 /* Read the HBA Host Attention Register */
5415 ha_copy = readl(phba->HAregaddr);
James Smart09372822008-01-11 01:52:54 -05005416 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
5417 mb->mbxCommand) *
5418 1000) + jiffies;
5419 i = 0;
dea31012005-04-17 16:05:31 -05005420 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05005421 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
5422 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05005423 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05005424 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05005425 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05005426 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05005427 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04005428 goto out_not_finished;
dea31012005-04-17 16:05:31 -05005429 }
5430
5431 /* Check if we took a mbox interrupt while we were
5432 polling */
5433 if (((word0 & OWN_CHIP) != OWN_CHIP)
5434 && (evtctr != psli->slistat.mbox_event))
5435 break;
5436
James Smart09372822008-01-11 01:52:54 -05005437 if (i++ > 10) {
5438 spin_unlock_irqrestore(&phba->hbalock,
5439 drvr_flag);
5440 msleep(1);
5441 spin_lock_irqsave(&phba->hbalock, drvr_flag);
5442 }
dea31012005-04-17 16:05:31 -05005443
James Smart3772a992009-05-22 14:50:54 -04005444 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005445 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04005446 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05005447 word0 = le32_to_cpu(word0);
5448 if (mb->mbxCommand == MBX_CONFIG_PORT) {
5449 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04005450 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05005451 /* Check real SLIM for any errors */
5452 slimword0 = readl(phba->MBslimaddr);
5453 slimmb = (MAILBOX_t *) & slimword0;
5454 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
5455 && slimmb->mbxStatus) {
5456 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04005457 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05005458 word0 = slimword0;
5459 }
5460 }
5461 } else {
5462 /* First copy command data */
5463 word0 = readl(phba->MBslimaddr);
5464 }
5465 /* Read the HBA Host Attention Register */
5466 ha_copy = readl(phba->HAregaddr);
5467 }
5468
James Smart3772a992009-05-22 14:50:54 -04005469 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005470 /* copy results back to user */
James Smart34b02dc2008-08-24 21:49:55 -04005471 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04005472 /* Copy the mailbox extension data */
5473 if (pmbox->out_ext_byte_len && pmbox->context2) {
5474 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
5475 pmbox->context2,
5476 pmbox->out_ext_byte_len);
5477 }
dea31012005-04-17 16:05:31 -05005478 } else {
5479 /* First copy command data */
5480 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
5481 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04005482 /* Copy the mailbox extension data */
5483 if (pmbox->out_ext_byte_len && pmbox->context2) {
5484 lpfc_memcpy_from_slim(pmbox->context2,
5485 phba->MBslimaddr +
5486 MAILBOX_HBA_EXT_OFFSET,
5487 pmbox->out_ext_byte_len);
dea31012005-04-17 16:05:31 -05005488 }
5489 }
5490
5491 writel(HA_MBATT, phba->HAregaddr);
5492 readl(phba->HAregaddr); /* flush */
5493
5494 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5495 status = mb->mbxStatus;
5496 }
5497
James Smart2e0fef82007-06-17 19:56:36 -05005498 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5499 return status;
James Smart58da1ff2008-04-07 10:15:56 -04005500
5501out_not_finished:
5502 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04005503 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04005504 lpfc_mbox_cmpl_put(phba, pmbox);
5505 }
5506 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05005507}
5508
James Smarte59058c2008-08-24 21:49:00 -04005509/**
James Smartf1126682009-06-10 17:22:44 -04005510 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5511 * @phba: Pointer to HBA context object.
5512 *
5513 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5514 * the driver internal pending mailbox queue. It will then try to wait out the
5515 * possible outstanding mailbox command before return.
5516 *
5517 * Returns:
5518 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5519 * the outstanding mailbox command timed out.
5520 **/
5521static int
5522lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5523{
5524 struct lpfc_sli *psli = &phba->sli;
5525 uint8_t actcmd = MBX_HEARTBEAT;
5526 int rc = 0;
5527 unsigned long timeout;
5528
5529 /* Mark the asynchronous mailbox command posting as blocked */
5530 spin_lock_irq(&phba->hbalock);
5531 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5532 if (phba->sli.mbox_active)
5533 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5534 spin_unlock_irq(&phba->hbalock);
5535 /* Determine how long we might wait for the active mailbox
5536 * command to be gracefully completed by firmware.
5537 */
5538 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5539 jiffies;
5540 /* Wait for the outstnading mailbox command to complete */
5541 while (phba->sli.mbox_active) {
5542 /* Check active mailbox complete status every 2ms */
5543 msleep(2);
5544 if (time_after(jiffies, timeout)) {
5545 /* Timeout, marked the outstanding cmd not complete */
5546 rc = 1;
5547 break;
5548 }
5549 }
5550
5551 /* Can not cleanly block async mailbox command, fails it */
5552 if (rc) {
5553 spin_lock_irq(&phba->hbalock);
5554 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5555 spin_unlock_irq(&phba->hbalock);
5556 }
5557 return rc;
5558}
5559
5560/**
5561 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5562 * @phba: Pointer to HBA context object.
5563 *
5564 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5565 * commands from the driver internal pending mailbox queue. It makes sure
5566 * that there is no outstanding mailbox command before resuming posting
5567 * asynchronous mailbox commands. If, for any reason, there is outstanding
5568 * mailbox command, it will try to wait it out before resuming asynchronous
5569 * mailbox command posting.
5570 **/
5571static void
5572lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5573{
5574 struct lpfc_sli *psli = &phba->sli;
5575
5576 spin_lock_irq(&phba->hbalock);
5577 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5578 /* Asynchronous mailbox posting is not blocked, do nothing */
5579 spin_unlock_irq(&phba->hbalock);
5580 return;
5581 }
5582
5583 /* Outstanding synchronous mailbox command is guaranteed to be done,
5584 * successful or timeout, after timing-out the outstanding mailbox
5585 * command shall always be removed, so just unblock posting async
5586 * mailbox command and resume
5587 */
5588 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5589 spin_unlock_irq(&phba->hbalock);
5590
5591 /* wake up worker thread to post asynchronlous mailbox command */
5592 lpfc_worker_wake_up(phba);
5593}
5594
5595/**
James Smartda0436e2009-05-22 14:51:39 -04005596 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5597 * @phba: Pointer to HBA context object.
5598 * @mboxq: Pointer to mailbox object.
5599 *
5600 * The function posts a mailbox to the port. The mailbox is expected
5601 * to be comletely filled in and ready for the port to operate on it.
5602 * This routine executes a synchronous completion operation on the
5603 * mailbox by polling for its completion.
5604 *
5605 * The caller must not be holding any locks when calling this routine.
5606 *
5607 * Returns:
5608 * MBX_SUCCESS - mailbox posted successfully
5609 * Any of the MBX error values.
5610 **/
5611static int
5612lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5613{
5614 int rc = MBX_SUCCESS;
5615 unsigned long iflag;
5616 uint32_t db_ready;
5617 uint32_t mcqe_status;
5618 uint32_t mbx_cmnd;
5619 unsigned long timeout;
5620 struct lpfc_sli *psli = &phba->sli;
5621 struct lpfc_mqe *mb = &mboxq->u.mqe;
5622 struct lpfc_bmbx_create *mbox_rgn;
5623 struct dma_address *dma_address;
5624 struct lpfc_register bmbx_reg;
5625
5626 /*
5627 * Only one mailbox can be active to the bootstrap mailbox region
5628 * at a time and there is no queueing provided.
5629 */
5630 spin_lock_irqsave(&phba->hbalock, iflag);
5631 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5632 spin_unlock_irqrestore(&phba->hbalock, iflag);
5633 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5634 "(%d):2532 Mailbox command x%x (x%x) "
5635 "cannot issue Data: x%x x%x\n",
5636 mboxq->vport ? mboxq->vport->vpi : 0,
5637 mboxq->u.mb.mbxCommand,
5638 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5639 psli->sli_flag, MBX_POLL);
5640 return MBXERR_ERROR;
5641 }
5642 /* The server grabs the token and owns it until release */
5643 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5644 phba->sli.mbox_active = mboxq;
5645 spin_unlock_irqrestore(&phba->hbalock, iflag);
5646
5647 /*
5648 * Initialize the bootstrap memory region to avoid stale data areas
5649 * in the mailbox post. Then copy the caller's mailbox contents to
5650 * the bmbx mailbox region.
5651 */
5652 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5653 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5654 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5655 sizeof(struct lpfc_mqe));
5656
5657 /* Post the high mailbox dma address to the port and wait for ready. */
5658 dma_address = &phba->sli4_hba.bmbx.dma_address;
5659 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5660
5661 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5662 * 1000) + jiffies;
5663 do {
5664 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5665 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5666 if (!db_ready)
5667 msleep(2);
5668
5669 if (time_after(jiffies, timeout)) {
5670 rc = MBXERR_ERROR;
5671 goto exit;
5672 }
5673 } while (!db_ready);
5674
5675 /* Post the low mailbox dma address to the port. */
5676 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5677 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5678 * 1000) + jiffies;
5679 do {
5680 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5681 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5682 if (!db_ready)
5683 msleep(2);
5684
5685 if (time_after(jiffies, timeout)) {
5686 rc = MBXERR_ERROR;
5687 goto exit;
5688 }
5689 } while (!db_ready);
5690
5691 /*
5692 * Read the CQ to ensure the mailbox has completed.
5693 * If so, update the mailbox status so that the upper layers
5694 * can complete the request normally.
5695 */
5696 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5697 sizeof(struct lpfc_mqe));
5698 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5699 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5700 sizeof(struct lpfc_mcqe));
5701 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5702
5703 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5704 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5705 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5706 rc = MBXERR_ERROR;
James Smartd7c47992010-06-08 18:31:54 -04005707 } else
5708 lpfc_sli4_swap_str(phba, mboxq);
James Smartda0436e2009-05-22 14:51:39 -04005709
5710 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5711 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5712 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5713 " x%x x%x CQ: x%x x%x x%x x%x\n",
5714 mboxq->vport ? mboxq->vport->vpi : 0,
5715 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5716 bf_get(lpfc_mqe_status, mb),
5717 mb->un.mb_words[0], mb->un.mb_words[1],
5718 mb->un.mb_words[2], mb->un.mb_words[3],
5719 mb->un.mb_words[4], mb->un.mb_words[5],
5720 mb->un.mb_words[6], mb->un.mb_words[7],
5721 mb->un.mb_words[8], mb->un.mb_words[9],
5722 mb->un.mb_words[10], mb->un.mb_words[11],
5723 mb->un.mb_words[12], mboxq->mcqe.word0,
5724 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5725 mboxq->mcqe.trailer);
5726exit:
5727 /* We are holding the token, no needed for lock when release */
5728 spin_lock_irqsave(&phba->hbalock, iflag);
5729 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5730 phba->sli.mbox_active = NULL;
5731 spin_unlock_irqrestore(&phba->hbalock, iflag);
5732 return rc;
5733}
5734
5735/**
5736 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5737 * @phba: Pointer to HBA context object.
5738 * @pmbox: Pointer to mailbox object.
5739 * @flag: Flag indicating how the mailbox need to be processed.
5740 *
5741 * This function is called by discovery code and HBA management code to submit
5742 * a mailbox command to firmware with SLI-4 interface spec.
5743 *
5744 * Return codes the caller owns the mailbox command after the return of the
5745 * function.
5746 **/
5747static int
5748lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5749 uint32_t flag)
5750{
5751 struct lpfc_sli *psli = &phba->sli;
5752 unsigned long iflags;
5753 int rc;
5754
James Smart8fa38512009-07-19 10:01:03 -04005755 rc = lpfc_mbox_dev_check(phba);
5756 if (unlikely(rc)) {
5757 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5758 "(%d):2544 Mailbox command x%x (x%x) "
5759 "cannot issue Data: x%x x%x\n",
5760 mboxq->vport ? mboxq->vport->vpi : 0,
5761 mboxq->u.mb.mbxCommand,
5762 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5763 psli->sli_flag, flag);
5764 goto out_not_finished;
5765 }
5766
James Smartda0436e2009-05-22 14:51:39 -04005767 /* Detect polling mode and jump to a handler */
5768 if (!phba->sli4_hba.intr_enable) {
5769 if (flag == MBX_POLL)
5770 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5771 else
5772 rc = -EIO;
5773 if (rc != MBX_SUCCESS)
5774 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5775 "(%d):2541 Mailbox command x%x "
5776 "(x%x) cannot issue Data: x%x x%x\n",
5777 mboxq->vport ? mboxq->vport->vpi : 0,
5778 mboxq->u.mb.mbxCommand,
5779 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5780 psli->sli_flag, flag);
5781 return rc;
5782 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04005783 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5784 "(%d):2542 Try to issue mailbox command "
5785 "x%x (x%x) synchronously ahead of async"
5786 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04005787 mboxq->vport ? mboxq->vport->vpi : 0,
5788 mboxq->u.mb.mbxCommand,
5789 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5790 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04005791 /* Try to block the asynchronous mailbox posting */
5792 rc = lpfc_sli4_async_mbox_block(phba);
5793 if (!rc) {
5794 /* Successfully blocked, now issue sync mbox cmd */
5795 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5796 if (rc != MBX_SUCCESS)
5797 lpfc_printf_log(phba, KERN_ERR,
5798 LOG_MBOX | LOG_SLI,
5799 "(%d):2597 Mailbox command "
5800 "x%x (x%x) cannot issue "
5801 "Data: x%x x%x\n",
5802 mboxq->vport ?
5803 mboxq->vport->vpi : 0,
5804 mboxq->u.mb.mbxCommand,
5805 lpfc_sli4_mbox_opcode_get(phba,
5806 mboxq),
5807 psli->sli_flag, flag);
5808 /* Unblock the async mailbox posting afterward */
5809 lpfc_sli4_async_mbox_unblock(phba);
5810 }
5811 return rc;
James Smartda0436e2009-05-22 14:51:39 -04005812 }
5813
5814 /* Now, interrupt mode asynchrous mailbox command */
5815 rc = lpfc_mbox_cmd_check(phba, mboxq);
5816 if (rc) {
5817 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5818 "(%d):2543 Mailbox command x%x (x%x) "
5819 "cannot issue Data: x%x x%x\n",
5820 mboxq->vport ? mboxq->vport->vpi : 0,
5821 mboxq->u.mb.mbxCommand,
5822 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5823 psli->sli_flag, flag);
5824 goto out_not_finished;
5825 }
James Smartda0436e2009-05-22 14:51:39 -04005826
5827 /* Put the mailbox command to the driver internal FIFO */
5828 psli->slistat.mbox_busy++;
5829 spin_lock_irqsave(&phba->hbalock, iflags);
5830 lpfc_mbox_put(phba, mboxq);
5831 spin_unlock_irqrestore(&phba->hbalock, iflags);
5832 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5833 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5834 "x%x (x%x) x%x x%x x%x\n",
5835 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5836 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5837 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5838 phba->pport->port_state,
5839 psli->sli_flag, MBX_NOWAIT);
5840 /* Wake up worker thread to transport mailbox command from head */
5841 lpfc_worker_wake_up(phba);
5842
5843 return MBX_BUSY;
5844
5845out_not_finished:
5846 return MBX_NOT_FINISHED;
5847}
5848
5849/**
5850 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5851 * @phba: Pointer to HBA context object.
5852 *
5853 * This function is called by worker thread to send a mailbox command to
5854 * SLI4 HBA firmware.
5855 *
5856 **/
5857int
5858lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5859{
5860 struct lpfc_sli *psli = &phba->sli;
5861 LPFC_MBOXQ_t *mboxq;
5862 int rc = MBX_SUCCESS;
5863 unsigned long iflags;
5864 struct lpfc_mqe *mqe;
5865 uint32_t mbx_cmnd;
5866
5867 /* Check interrupt mode before post async mailbox command */
5868 if (unlikely(!phba->sli4_hba.intr_enable))
5869 return MBX_NOT_FINISHED;
5870
5871 /* Check for mailbox command service token */
5872 spin_lock_irqsave(&phba->hbalock, iflags);
5873 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5874 spin_unlock_irqrestore(&phba->hbalock, iflags);
5875 return MBX_NOT_FINISHED;
5876 }
5877 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5878 spin_unlock_irqrestore(&phba->hbalock, iflags);
5879 return MBX_NOT_FINISHED;
5880 }
5881 if (unlikely(phba->sli.mbox_active)) {
5882 spin_unlock_irqrestore(&phba->hbalock, iflags);
5883 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5884 "0384 There is pending active mailbox cmd\n");
5885 return MBX_NOT_FINISHED;
5886 }
5887 /* Take the mailbox command service token */
5888 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5889
5890 /* Get the next mailbox command from head of queue */
5891 mboxq = lpfc_mbox_get(phba);
5892
5893 /* If no more mailbox command waiting for post, we're done */
5894 if (!mboxq) {
5895 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5896 spin_unlock_irqrestore(&phba->hbalock, iflags);
5897 return MBX_SUCCESS;
5898 }
5899 phba->sli.mbox_active = mboxq;
5900 spin_unlock_irqrestore(&phba->hbalock, iflags);
5901
5902 /* Check device readiness for posting mailbox command */
5903 rc = lpfc_mbox_dev_check(phba);
5904 if (unlikely(rc))
5905 /* Driver clean routine will clean up pending mailbox */
5906 goto out_not_finished;
5907
5908 /* Prepare the mbox command to be posted */
5909 mqe = &mboxq->u.mqe;
5910 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5911
5912 /* Start timer for the mbox_tmo and log some mailbox post messages */
5913 mod_timer(&psli->mbox_tmo, (jiffies +
5914 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5915
5916 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5917 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5918 "x%x x%x\n",
5919 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5920 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5921 phba->pport->port_state, psli->sli_flag);
5922
5923 if (mbx_cmnd != MBX_HEARTBEAT) {
5924 if (mboxq->vport) {
5925 lpfc_debugfs_disc_trc(mboxq->vport,
5926 LPFC_DISC_TRC_MBOX_VPORT,
5927 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5928 mbx_cmnd, mqe->un.mb_words[0],
5929 mqe->un.mb_words[1]);
5930 } else {
5931 lpfc_debugfs_disc_trc(phba->pport,
5932 LPFC_DISC_TRC_MBOX,
5933 "MBOX Send: cmd:x%x mb:x%x x%x",
5934 mbx_cmnd, mqe->un.mb_words[0],
5935 mqe->un.mb_words[1]);
5936 }
5937 }
5938 psli->slistat.mbox_cmd++;
5939
5940 /* Post the mailbox command to the port */
5941 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5942 if (rc != MBX_SUCCESS) {
5943 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5944 "(%d):2533 Mailbox command x%x (x%x) "
5945 "cannot issue Data: x%x x%x\n",
5946 mboxq->vport ? mboxq->vport->vpi : 0,
5947 mboxq->u.mb.mbxCommand,
5948 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5949 psli->sli_flag, MBX_NOWAIT);
5950 goto out_not_finished;
5951 }
5952
5953 return rc;
5954
5955out_not_finished:
5956 spin_lock_irqsave(&phba->hbalock, iflags);
5957 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5958 __lpfc_mbox_cmpl_put(phba, mboxq);
5959 /* Release the token */
5960 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5961 phba->sli.mbox_active = NULL;
5962 spin_unlock_irqrestore(&phba->hbalock, iflags);
5963
5964 return MBX_NOT_FINISHED;
5965}
5966
5967/**
5968 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5969 * @phba: Pointer to HBA context object.
5970 * @pmbox: Pointer to mailbox object.
5971 * @flag: Flag indicating how the mailbox need to be processed.
5972 *
5973 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5974 * the API jump table function pointer from the lpfc_hba struct.
5975 *
5976 * Return codes the caller owns the mailbox command after the return of the
5977 * function.
5978 **/
5979int
5980lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5981{
5982 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5983}
5984
5985/**
5986 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5987 * @phba: The hba struct for which this call is being executed.
5988 * @dev_grp: The HBA PCI-Device group number.
5989 *
5990 * This routine sets up the mbox interface API function jump table in @phba
5991 * struct.
5992 * Returns: 0 - success, -ENODEV - failure.
5993 **/
5994int
5995lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5996{
5997
5998 switch (dev_grp) {
5999 case LPFC_PCI_DEV_LP:
6000 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
6001 phba->lpfc_sli_handle_slow_ring_event =
6002 lpfc_sli_handle_slow_ring_event_s3;
6003 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
6004 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
6005 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
6006 break;
6007 case LPFC_PCI_DEV_OC:
6008 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
6009 phba->lpfc_sli_handle_slow_ring_event =
6010 lpfc_sli_handle_slow_ring_event_s4;
6011 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
6012 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
6013 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
6014 break;
6015 default:
6016 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6017 "1420 Invalid HBA PCI-device group: 0x%x\n",
6018 dev_grp);
6019 return -ENODEV;
6020 break;
6021 }
6022 return 0;
6023}
6024
6025/**
James Smart3621a712009-04-06 18:47:14 -04006026 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04006027 * @phba: Pointer to HBA context object.
6028 * @pring: Pointer to driver SLI ring object.
6029 * @piocb: Pointer to address of newly added command iocb.
6030 *
6031 * This function is called with hbalock held to add a command
6032 * iocb to the txq when SLI layer cannot submit the command iocb
6033 * to the ring.
6034 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04006035void
James Smart92d7f7b2007-06-17 19:56:38 -05006036__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05006037 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05006038{
6039 /* Insert the caller's iocb in the txq tail for later processing. */
6040 list_add_tail(&piocb->list, &pring->txq);
6041 pring->txq_cnt++;
dea31012005-04-17 16:05:31 -05006042}
6043
James Smarte59058c2008-08-24 21:49:00 -04006044/**
James Smart3621a712009-04-06 18:47:14 -04006045 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04006046 * @phba: Pointer to HBA context object.
6047 * @pring: Pointer to driver SLI ring object.
6048 * @piocb: Pointer to address of newly added command iocb.
6049 *
6050 * This function is called with hbalock held before a new
6051 * iocb is submitted to the firmware. This function checks
6052 * txq to flush the iocbs in txq to Firmware before
6053 * submitting new iocbs to the Firmware.
6054 * If there are iocbs in the txq which need to be submitted
6055 * to firmware, lpfc_sli_next_iocb returns the first element
6056 * of the txq after dequeuing it from txq.
6057 * If there is no iocb in the txq then the function will return
6058 * *piocb and *piocb is set to NULL. Caller needs to check
6059 * *piocb to find if there are more commands in the txq.
6060 **/
dea31012005-04-17 16:05:31 -05006061static struct lpfc_iocbq *
6062lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05006063 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05006064{
6065 struct lpfc_iocbq * nextiocb;
6066
6067 nextiocb = lpfc_sli_ringtx_get(phba, pring);
6068 if (!nextiocb) {
6069 nextiocb = *piocb;
6070 *piocb = NULL;
6071 }
6072
6073 return nextiocb;
6074}
6075
James Smarte59058c2008-08-24 21:49:00 -04006076/**
James Smart3772a992009-05-22 14:50:54 -04006077 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04006078 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04006079 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04006080 * @piocb: Pointer to command iocb.
6081 * @flag: Flag indicating if this command can be put into txq.
6082 *
James Smart3772a992009-05-22 14:50:54 -04006083 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
6084 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
6085 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
6086 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
6087 * this function allows only iocbs for posting buffers. This function finds
6088 * next available slot in the command ring and posts the command to the
6089 * available slot and writes the port attention register to request HBA start
6090 * processing new iocb. If there is no slot available in the ring and
6091 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
6092 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04006093 *
James Smart3772a992009-05-22 14:50:54 -04006094 * This function is called with hbalock held. The function will return success
6095 * after it successfully submit the iocb to firmware or after adding to the
6096 * txq.
James Smarte59058c2008-08-24 21:49:00 -04006097 **/
James Smart98c9ea52007-10-27 13:37:33 -04006098static int
James Smart3772a992009-05-22 14:50:54 -04006099__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05006100 struct lpfc_iocbq *piocb, uint32_t flag)
6101{
6102 struct lpfc_iocbq *nextiocb;
6103 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04006104 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05006105
James Smart92d7f7b2007-06-17 19:56:38 -05006106 if (piocb->iocb_cmpl && (!piocb->vport) &&
6107 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
6108 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
6109 lpfc_printf_log(phba, KERN_ERR,
6110 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04006111 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05006112 piocb->iocb.ulpCommand);
6113 dump_stack();
6114 return IOCB_ERROR;
6115 }
6116
6117
Linas Vepstas8d63f372007-02-14 14:28:36 -06006118 /* If the PCI channel is in offline state, do not post iocbs. */
6119 if (unlikely(pci_channel_offline(phba->pcidev)))
6120 return IOCB_ERROR;
6121
James Smarta257bf92009-04-06 18:48:10 -04006122 /* If HBA has a deferred error attention, fail the iocb. */
6123 if (unlikely(phba->hba_flag & DEFER_ERATT))
6124 return IOCB_ERROR;
6125
dea31012005-04-17 16:05:31 -05006126 /*
6127 * We should never get an IOCB if we are in a < LINK_DOWN state
6128 */
James Smart2e0fef82007-06-17 19:56:36 -05006129 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05006130 return IOCB_ERROR;
6131
6132 /*
6133 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04006134 * outstanding event.
dea31012005-04-17 16:05:31 -05006135 */
James Smart0b727fe2007-10-27 13:37:25 -04006136 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05006137 goto iocb_busy;
6138
James Smart2e0fef82007-06-17 19:56:36 -05006139 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05006140 /*
James Smart2680eea2007-04-25 09:52:55 -04006141 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05006142 * can be issued if the link is not up.
6143 */
6144 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04006145 case CMD_GEN_REQUEST64_CR:
6146 case CMD_GEN_REQUEST64_CX:
6147 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
6148 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04006149 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04006150 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
6151 MENLO_TRANSPORT_TYPE))
6152
6153 goto iocb_busy;
6154 break;
dea31012005-04-17 16:05:31 -05006155 case CMD_QUE_RING_BUF_CN:
6156 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05006157 /*
6158 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
6159 * completion, iocb_cmpl MUST be 0.
6160 */
6161 if (piocb->iocb_cmpl)
6162 piocb->iocb_cmpl = NULL;
6163 /*FALLTHROUGH*/
6164 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04006165 case CMD_CLOSE_XRI_CN:
6166 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05006167 break;
6168 default:
6169 goto iocb_busy;
6170 }
6171
6172 /*
6173 * For FCP commands, we must be in a state where we can process link
6174 * attention events.
6175 */
6176 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05006177 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05006178 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05006179 }
dea31012005-04-17 16:05:31 -05006180
dea31012005-04-17 16:05:31 -05006181 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
6182 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
6183 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
6184
6185 if (iocb)
6186 lpfc_sli_update_ring(phba, pring);
6187 else
6188 lpfc_sli_update_full_ring(phba, pring);
6189
6190 if (!piocb)
6191 return IOCB_SUCCESS;
6192
6193 goto out_busy;
6194
6195 iocb_busy:
6196 pring->stats.iocb_cmd_delay++;
6197
6198 out_busy:
6199
6200 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05006201 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05006202 return IOCB_SUCCESS;
6203 }
6204
6205 return IOCB_BUSY;
6206}
6207
James Smart3772a992009-05-22 14:50:54 -04006208/**
James Smart4f774512009-05-22 14:52:35 -04006209 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
6210 * @phba: Pointer to HBA context object.
6211 * @piocb: Pointer to command iocb.
6212 * @sglq: Pointer to the scatter gather queue object.
6213 *
6214 * This routine converts the bpl or bde that is in the IOCB
6215 * to a sgl list for the sli4 hardware. The physical address
6216 * of the bpl/bde is converted back to a virtual address.
6217 * If the IOCB contains a BPL then the list of BDE's is
6218 * converted to sli4_sge's. If the IOCB contains a single
6219 * BDE then it is converted to a single sli_sge.
6220 * The IOCB is still in cpu endianess so the contents of
6221 * the bpl can be used without byte swapping.
6222 *
6223 * Returns valid XRI = Success, NO_XRI = Failure.
6224**/
6225static uint16_t
6226lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
6227 struct lpfc_sglq *sglq)
6228{
6229 uint16_t xritag = NO_XRI;
6230 struct ulp_bde64 *bpl = NULL;
6231 struct ulp_bde64 bde;
6232 struct sli4_sge *sgl = NULL;
6233 IOCB_t *icmd;
6234 int numBdes = 0;
6235 int i = 0;
James Smart63e801c2010-11-20 23:14:19 -05006236 uint32_t offset = 0; /* accumulated offset in the sg request list */
6237 int inbound = 0; /* number of sg reply entries inbound from firmware */
James Smart4f774512009-05-22 14:52:35 -04006238
6239 if (!piocbq || !sglq)
6240 return xritag;
6241
6242 sgl = (struct sli4_sge *)sglq->sgl;
6243 icmd = &piocbq->iocb;
6244 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
6245 numBdes = icmd->un.genreq64.bdl.bdeSize /
6246 sizeof(struct ulp_bde64);
6247 /* The addrHigh and addrLow fields within the IOCB
6248 * have not been byteswapped yet so there is no
6249 * need to swap them back.
6250 */
6251 bpl = (struct ulp_bde64 *)
6252 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
6253
6254 if (!bpl)
6255 return xritag;
6256
6257 for (i = 0; i < numBdes; i++) {
6258 /* Should already be byte swapped. */
James Smart28baac72010-02-12 14:42:03 -05006259 sgl->addr_hi = bpl->addrHigh;
6260 sgl->addr_lo = bpl->addrLow;
6261
James Smart4f774512009-05-22 14:52:35 -04006262 if ((i+1) == numBdes)
6263 bf_set(lpfc_sli4_sge_last, sgl, 1);
6264 else
6265 bf_set(lpfc_sli4_sge_last, sgl, 0);
6266 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05006267 /* swap the size field back to the cpu so we
6268 * can assign it to the sgl.
6269 */
6270 bde.tus.w = le32_to_cpu(bpl->tus.w);
6271 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
James Smart63e801c2010-11-20 23:14:19 -05006272 /* The offsets in the sgl need to be accumulated
6273 * separately for the request and reply lists.
6274 * The request is always first, the reply follows.
6275 */
6276 if (piocbq->iocb.ulpCommand == CMD_GEN_REQUEST64_CR) {
6277 /* add up the reply sg entries */
6278 if (bpl->tus.f.bdeFlags == BUFF_TYPE_BDE_64I)
6279 inbound++;
6280 /* first inbound? reset the offset */
6281 if (inbound == 1)
6282 offset = 0;
6283 bf_set(lpfc_sli4_sge_offset, sgl, offset);
6284 offset += bde.tus.f.bdeSize;
6285 }
James Smart4f774512009-05-22 14:52:35 -04006286 bpl++;
6287 sgl++;
6288 }
6289 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
6290 /* The addrHigh and addrLow fields of the BDE have not
6291 * been byteswapped yet so they need to be swapped
6292 * before putting them in the sgl.
6293 */
6294 sgl->addr_hi =
6295 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
6296 sgl->addr_lo =
6297 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
James Smart4f774512009-05-22 14:52:35 -04006298 bf_set(lpfc_sli4_sge_last, sgl, 1);
6299 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05006300 sgl->sge_len =
6301 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04006302 }
6303 return sglq->sli4_xritag;
6304}
6305
6306/**
6307 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
6308 * @phba: Pointer to HBA context object.
James Smart4f774512009-05-22 14:52:35 -04006309 *
James Smarta93ff372010-10-22 11:06:08 -04006310 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
James Smart8fa38512009-07-19 10:01:03 -04006311 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
6312 * held.
James Smart4f774512009-05-22 14:52:35 -04006313 *
6314 * Return: index into SLI4 fast-path FCP queue index.
6315 **/
6316static uint32_t
James Smart8fa38512009-07-19 10:01:03 -04006317lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -04006318{
James Smart8fa38512009-07-19 10:01:03 -04006319 ++phba->fcp_qidx;
6320 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
6321 phba->fcp_qidx = 0;
James Smart4f774512009-05-22 14:52:35 -04006322
James Smart8fa38512009-07-19 10:01:03 -04006323 return phba->fcp_qidx;
James Smart4f774512009-05-22 14:52:35 -04006324}
6325
6326/**
6327 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
6328 * @phba: Pointer to HBA context object.
6329 * @piocb: Pointer to command iocb.
6330 * @wqe: Pointer to the work queue entry.
6331 *
6332 * This routine converts the iocb command to its Work Queue Entry
6333 * equivalent. The wqe pointer should not have any fields set when
6334 * this routine is called because it will memcpy over them.
6335 * This routine does not set the CQ_ID or the WQEC bits in the
6336 * wqe.
6337 *
6338 * Returns: 0 = Success, IOCB_ERROR = Failure.
6339 **/
6340static int
6341lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
6342 union lpfc_wqe *wqe)
6343{
James Smart5ffc2662009-11-18 15:39:44 -05006344 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04006345 uint8_t ct = 0;
6346 uint32_t fip;
6347 uint32_t abort_tag;
6348 uint8_t command_type = ELS_COMMAND_NON_FIP;
6349 uint8_t cmnd;
6350 uint16_t xritag;
James Smartdcf2a4e2010-09-29 11:18:53 -04006351 uint16_t abrt_iotag;
6352 struct lpfc_iocbq *abrtiocbq;
James Smart4f774512009-05-22 14:52:35 -04006353 struct ulp_bde64 *bpl = NULL;
James Smartf0d9bcc2010-10-22 11:07:09 -04006354 uint32_t els_id = LPFC_ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05006355 int numBdes, i;
6356 struct ulp_bde64 bde;
James Smart4f774512009-05-22 14:52:35 -04006357
James Smart45ed1192009-10-02 15:17:02 -04006358 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04006359 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04006360 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04006361 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05006362 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04006363 command_type = ELS_COMMAND_FIP;
6364 else
6365 command_type = ELS_COMMAND_NON_FIP;
6366
James Smart4f774512009-05-22 14:52:35 -04006367 /* Some of the fields are in the right position already */
6368 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
6369 abort_tag = (uint32_t) iocbq->iotag;
6370 xritag = iocbq->sli4_xritag;
James Smartf0d9bcc2010-10-22 11:07:09 -04006371 wqe->generic.wqe_com.word7 = 0; /* The ct field has moved so reset */
James Smart4f774512009-05-22 14:52:35 -04006372 /* words0-2 bpl convert bde */
6373 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05006374 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
6375 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04006376 bpl = (struct ulp_bde64 *)
6377 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
6378 if (!bpl)
6379 return IOCB_ERROR;
6380
6381 /* Should already be byte swapped. */
6382 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
6383 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
6384 /* swap the size field back to the cpu so we
6385 * can assign it to the sgl.
6386 */
6387 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05006388 xmit_len = wqe->generic.bde.tus.f.bdeSize;
6389 total_len = 0;
6390 for (i = 0; i < numBdes; i++) {
6391 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
6392 total_len += bde.tus.f.bdeSize;
6393 }
James Smart4f774512009-05-22 14:52:35 -04006394 } else
James Smart5ffc2662009-11-18 15:39:44 -05006395 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04006396
6397 iocbq->iocb.ulpIoTag = iocbq->iotag;
6398 cmnd = iocbq->iocb.ulpCommand;
6399
6400 switch (iocbq->iocb.ulpCommand) {
6401 case CMD_ELS_REQUEST64_CR:
6402 if (!iocbq->iocb.ulpLe) {
6403 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6404 "2007 Only Limited Edition cmd Format"
6405 " supported 0x%x\n",
6406 iocbq->iocb.ulpCommand);
6407 return IOCB_ERROR;
6408 }
James Smart5ffc2662009-11-18 15:39:44 -05006409 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04006410 /* Els_reguest64 has a TMO */
6411 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
6412 iocbq->iocb.ulpTimeout);
6413 /* Need a VF for word 4 set the vf bit*/
6414 bf_set(els_req64_vf, &wqe->els_req, 0);
6415 /* And a VFID for word 12 */
6416 bf_set(els_req64_vfid, &wqe->els_req, 0);
James Smart4f774512009-05-22 14:52:35 -04006417 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
James Smartf0d9bcc2010-10-22 11:07:09 -04006418 bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
6419 iocbq->iocb.ulpContext);
6420 bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
6421 bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006422 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartc8685952009-11-18 15:39:16 -05006423 if (command_type == ELS_COMMAND_FIP) {
6424 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
6425 >> LPFC_FIP_ELS_ID_SHIFT);
6426 }
James Smartf0d9bcc2010-10-22 11:07:09 -04006427 bf_set(wqe_els_id, &wqe->els_req.wqe_com, els_id);
6428 bf_set(wqe_dbde, &wqe->els_req.wqe_com, 1);
6429 bf_set(wqe_iod, &wqe->els_req.wqe_com, LPFC_WQE_IOD_READ);
6430 bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
6431 bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
6432 bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006433 break;
James Smart5ffc2662009-11-18 15:39:44 -05006434 case CMD_XMIT_SEQUENCE64_CX:
James Smartf0d9bcc2010-10-22 11:07:09 -04006435 bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
6436 iocbq->iocb.un.ulpWord[3]);
6437 bf_set(wqe_rcvoxid, &wqe->xmit_sequence.wqe_com,
6438 iocbq->iocb.ulpContext);
James Smart5ffc2662009-11-18 15:39:44 -05006439 /* The entire sequence is transmitted for this IOCB */
6440 xmit_len = total_len;
6441 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart4f774512009-05-22 14:52:35 -04006442 case CMD_XMIT_SEQUENCE64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04006443 /* word3 iocb=io_tag32 wqe=reserved */
6444 wqe->xmit_sequence.rsvd3 = 0;
James Smart4f774512009-05-22 14:52:35 -04006445 /* word4 relative_offset memcpy */
6446 /* word5 r_ctl/df_ctl memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04006447 bf_set(wqe_pu, &wqe->xmit_sequence.wqe_com, 0);
6448 bf_set(wqe_dbde, &wqe->xmit_sequence.wqe_com, 1);
6449 bf_set(wqe_iod, &wqe->xmit_sequence.wqe_com,
6450 LPFC_WQE_IOD_WRITE);
6451 bf_set(wqe_lenloc, &wqe->xmit_sequence.wqe_com,
6452 LPFC_WQE_LENLOC_WORD12);
6453 bf_set(wqe_ebde_cnt, &wqe->xmit_sequence.wqe_com, 0);
James Smart5ffc2662009-11-18 15:39:44 -05006454 wqe->xmit_sequence.xmit_len = xmit_len;
6455 command_type = OTHER_COMMAND;
James Smart4f774512009-05-22 14:52:35 -04006456 break;
6457 case CMD_XMIT_BCAST64_CN:
James Smartf0d9bcc2010-10-22 11:07:09 -04006458 /* word3 iocb=iotag32 wqe=seq_payload_len */
6459 wqe->xmit_bcast64.seq_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04006460 /* word4 iocb=rsvd wqe=rsvd */
6461 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6462 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
James Smartf0d9bcc2010-10-22 11:07:09 -04006463 bf_set(wqe_ct, &wqe->xmit_bcast64.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04006464 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
James Smartf0d9bcc2010-10-22 11:07:09 -04006465 bf_set(wqe_dbde, &wqe->xmit_bcast64.wqe_com, 1);
6466 bf_set(wqe_iod, &wqe->xmit_bcast64.wqe_com, LPFC_WQE_IOD_WRITE);
6467 bf_set(wqe_lenloc, &wqe->xmit_bcast64.wqe_com,
6468 LPFC_WQE_LENLOC_WORD3);
6469 bf_set(wqe_ebde_cnt, &wqe->xmit_bcast64.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006470 break;
6471 case CMD_FCP_IWRITE64_CR:
6472 command_type = FCP_COMMAND_DATA_OUT;
James Smartf0d9bcc2010-10-22 11:07:09 -04006473 /* word3 iocb=iotag wqe=payload_offset_len */
6474 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6475 wqe->fcp_iwrite.payload_offset_len =
James Smart5ffc2662009-11-18 15:39:44 -05006476 xmit_len + sizeof(struct fcp_rsp);
James Smartf0d9bcc2010-10-22 11:07:09 -04006477 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6478 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6479 bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
6480 iocbq->iocb.ulpFCP2Rcvy);
6481 bf_set(wqe_lnk, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpXS);
6482 /* Always open the exchange */
6483 bf_set(wqe_xc, &wqe->fcp_iwrite.wqe_com, 0);
6484 bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
6485 bf_set(wqe_iod, &wqe->fcp_iwrite.wqe_com, LPFC_WQE_IOD_WRITE);
6486 bf_set(wqe_lenloc, &wqe->fcp_iwrite.wqe_com,
6487 LPFC_WQE_LENLOC_WORD4);
6488 bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
6489 bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
6490 break;
6491 case CMD_FCP_IREAD64_CR:
6492 /* word3 iocb=iotag wqe=payload_offset_len */
6493 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6494 wqe->fcp_iread.payload_offset_len =
6495 xmit_len + sizeof(struct fcp_rsp);
6496 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6497 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6498 bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
6499 iocbq->iocb.ulpFCP2Rcvy);
6500 bf_set(wqe_lnk, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpXS);
James Smart4f774512009-05-22 14:52:35 -04006501 /* Always open the exchange */
6502 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
James Smartf0d9bcc2010-10-22 11:07:09 -04006503 bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
6504 bf_set(wqe_iod, &wqe->fcp_iread.wqe_com, LPFC_WQE_IOD_READ);
6505 bf_set(wqe_lenloc, &wqe->fcp_iread.wqe_com,
6506 LPFC_WQE_LENLOC_WORD4);
6507 bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
6508 bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
6509 break;
James Smartf1126682009-06-10 17:22:44 -04006510 case CMD_FCP_ICMND64_CR:
James Smartf0d9bcc2010-10-22 11:07:09 -04006511 /* word3 iocb=IO_TAG wqe=reserved */
6512 wqe->fcp_icmd.rsrvd3 = 0;
6513 bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
James Smartf1126682009-06-10 17:22:44 -04006514 /* Always open the exchange */
James Smartf0d9bcc2010-10-22 11:07:09 -04006515 bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
6516 bf_set(wqe_dbde, &wqe->fcp_icmd.wqe_com, 1);
6517 bf_set(wqe_iod, &wqe->fcp_icmd.wqe_com, LPFC_WQE_IOD_WRITE);
6518 bf_set(wqe_qosd, &wqe->fcp_icmd.wqe_com, 1);
6519 bf_set(wqe_lenloc, &wqe->fcp_icmd.wqe_com,
6520 LPFC_WQE_LENLOC_NONE);
6521 bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006522 break;
6523 case CMD_GEN_REQUEST64_CR:
James Smart63e801c2010-11-20 23:14:19 -05006524 /* For this command calculate the xmit length of the
6525 * request bde.
6526 */
6527 xmit_len = 0;
6528 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
6529 sizeof(struct ulp_bde64);
6530 for (i = 0; i < numBdes; i++) {
6531 if (bpl[i].tus.f.bdeFlags != BUFF_TYPE_BDE_64)
6532 break;
6533 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
6534 xmit_len += bde.tus.f.bdeSize;
6535 }
James Smartf0d9bcc2010-10-22 11:07:09 -04006536 /* word3 iocb=IO_TAG wqe=request_payload_len */
6537 wqe->gen_req.request_payload_len = xmit_len;
6538 /* word4 iocb=parameter wqe=relative_offset memcpy */
6539 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
James Smart4f774512009-05-22 14:52:35 -04006540 /* word6 context tag copied in memcpy */
6541 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
6542 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6543 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6544 "2015 Invalid CT %x command 0x%x\n",
6545 ct, iocbq->iocb.ulpCommand);
6546 return IOCB_ERROR;
6547 }
James Smartf0d9bcc2010-10-22 11:07:09 -04006548 bf_set(wqe_ct, &wqe->gen_req.wqe_com, 0);
6549 bf_set(wqe_tmo, &wqe->gen_req.wqe_com, iocbq->iocb.ulpTimeout);
6550 bf_set(wqe_pu, &wqe->gen_req.wqe_com, iocbq->iocb.ulpPU);
6551 bf_set(wqe_dbde, &wqe->gen_req.wqe_com, 1);
6552 bf_set(wqe_iod, &wqe->gen_req.wqe_com, LPFC_WQE_IOD_READ);
6553 bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
6554 bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
6555 bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006556 command_type = OTHER_COMMAND;
6557 break;
6558 case CMD_XMIT_ELS_RSP64_CX:
6559 /* words0-2 BDE memcpy */
James Smartf0d9bcc2010-10-22 11:07:09 -04006560 /* word3 iocb=iotag32 wqe=response_payload_len */
6561 wqe->xmit_els_rsp.response_payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04006562 /* word4 iocb=did wge=rsvd. */
James Smartf0d9bcc2010-10-22 11:07:09 -04006563 wqe->xmit_els_rsp.rsvd4 = 0;
James Smart4f774512009-05-22 14:52:35 -04006564 /* word5 iocb=rsvd wge=did */
6565 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6566 iocbq->iocb.un.elsreq64.remoteID);
James Smartf0d9bcc2010-10-22 11:07:09 -04006567 bf_set(wqe_ct, &wqe->xmit_els_rsp.wqe_com,
6568 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6569 bf_set(wqe_pu, &wqe->xmit_els_rsp.wqe_com, iocbq->iocb.ulpPU);
6570 bf_set(wqe_rcvoxid, &wqe->xmit_els_rsp.wqe_com,
6571 iocbq->iocb.ulpContext);
James Smart4f774512009-05-22 14:52:35 -04006572 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
James Smartf0d9bcc2010-10-22 11:07:09 -04006573 bf_set(wqe_ctxt_tag, &wqe->xmit_els_rsp.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04006574 iocbq->vport->vpi + phba->vpi_base);
James Smartf0d9bcc2010-10-22 11:07:09 -04006575 bf_set(wqe_dbde, &wqe->xmit_els_rsp.wqe_com, 1);
6576 bf_set(wqe_iod, &wqe->xmit_els_rsp.wqe_com, LPFC_WQE_IOD_WRITE);
6577 bf_set(wqe_qosd, &wqe->xmit_els_rsp.wqe_com, 1);
6578 bf_set(wqe_lenloc, &wqe->xmit_els_rsp.wqe_com,
6579 LPFC_WQE_LENLOC_WORD3);
6580 bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
James Smart4f774512009-05-22 14:52:35 -04006581 command_type = OTHER_COMMAND;
6582 break;
6583 case CMD_CLOSE_XRI_CN:
6584 case CMD_ABORT_XRI_CN:
6585 case CMD_ABORT_XRI_CX:
6586 /* words 0-2 memcpy should be 0 rserved */
6587 /* port will send abts */
James Smartdcf2a4e2010-09-29 11:18:53 -04006588 abrt_iotag = iocbq->iocb.un.acxri.abortContextTag;
6589 if (abrt_iotag != 0 && abrt_iotag <= phba->sli.last_iotag) {
6590 abrtiocbq = phba->sli.iocbq_lookup[abrt_iotag];
6591 fip = abrtiocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK;
6592 } else
6593 fip = 0;
6594
6595 if ((iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN) || fip)
James Smart4f774512009-05-22 14:52:35 -04006596 /*
James Smartdcf2a4e2010-09-29 11:18:53 -04006597 * The link is down, or the command was ELS_FIP
6598 * so the fw does not need to send abts
James Smart4f774512009-05-22 14:52:35 -04006599 * on the wire.
6600 */
6601 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6602 else
6603 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6604 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smartf0d9bcc2010-10-22 11:07:09 -04006605 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
6606 wqe->abort_cmd.rsrvd5 = 0;
6607 bf_set(wqe_ct, &wqe->abort_cmd.wqe_com,
James Smart4f774512009-05-22 14:52:35 -04006608 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6609 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04006610 /*
6611 * The abort handler will send us CMD_ABORT_XRI_CN or
6612 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6613 */
James Smartf0d9bcc2010-10-22 11:07:09 -04006614 bf_set(wqe_cmnd, &wqe->abort_cmd.wqe_com, CMD_ABORT_XRI_CX);
6615 bf_set(wqe_qosd, &wqe->abort_cmd.wqe_com, 1);
6616 bf_set(wqe_lenloc, &wqe->abort_cmd.wqe_com,
6617 LPFC_WQE_LENLOC_NONE);
James Smart4f774512009-05-22 14:52:35 -04006618 cmnd = CMD_ABORT_XRI_CX;
6619 command_type = OTHER_COMMAND;
6620 xritag = 0;
6621 break;
James Smart6669f9b2009-10-02 15:16:45 -04006622 case CMD_XMIT_BLS_RSP64_CX:
6623 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6624 * we re-construct this WQE here based on information in
6625 * iocbq from scratch.
6626 */
6627 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05006628 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04006629 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart5ffc2662009-11-18 15:39:44 -05006630 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6631 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6632 LPFC_ABTS_UNSOL_INT) {
6633 /* ABTS sent by initiator to CT exchange, the
6634 * RX_ID field will be filled with the newly
6635 * allocated responder XRI.
6636 */
6637 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6638 iocbq->sli4_xritag);
6639 } else {
6640 /* ABTS sent by responder to CT exchange, the
6641 * RX_ID field will be filled with the responder
6642 * RX_ID from ABTS.
6643 */
6644 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6645 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6646 }
James Smart6669f9b2009-10-02 15:16:45 -04006647 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6648 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6649 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6650 iocbq->iocb.ulpContext);
James Smartf0d9bcc2010-10-22 11:07:09 -04006651 bf_set(wqe_qosd, &wqe->xmit_bls_rsp.wqe_com, 1);
6652 bf_set(wqe_lenloc, &wqe->xmit_bls_rsp.wqe_com,
6653 LPFC_WQE_LENLOC_NONE);
James Smart6669f9b2009-10-02 15:16:45 -04006654 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6655 command_type = OTHER_COMMAND;
6656 break;
James Smart4f774512009-05-22 14:52:35 -04006657 case CMD_XRI_ABORTED_CX:
6658 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
James Smart4f774512009-05-22 14:52:35 -04006659 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6660 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6661 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6662 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6663 default:
6664 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6665 "2014 Invalid command 0x%x\n",
6666 iocbq->iocb.ulpCommand);
6667 return IOCB_ERROR;
6668 break;
James Smart4f774512009-05-22 14:52:35 -04006669 }
James Smartf0d9bcc2010-10-22 11:07:09 -04006670 bf_set(wqe_xri_tag, &wqe->generic.wqe_com, xritag);
6671 bf_set(wqe_reqtag, &wqe->generic.wqe_com, iocbq->iotag);
6672 wqe->generic.wqe_com.abort_tag = abort_tag;
6673 bf_set(wqe_cmd_type, &wqe->generic.wqe_com, command_type);
6674 bf_set(wqe_cmnd, &wqe->generic.wqe_com, cmnd);
6675 bf_set(wqe_class, &wqe->generic.wqe_com, iocbq->iocb.ulpClass);
6676 bf_set(wqe_cqid, &wqe->generic.wqe_com, LPFC_WQE_CQ_ID_DEFAULT);
James Smart4f774512009-05-22 14:52:35 -04006677 return 0;
6678}
6679
6680/**
6681 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6682 * @phba: Pointer to HBA context object.
6683 * @ring_number: SLI ring number to issue iocb on.
6684 * @piocb: Pointer to command iocb.
6685 * @flag: Flag indicating if this command can be put into txq.
6686 *
6687 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6688 * an iocb command to an HBA with SLI-4 interface spec.
6689 *
6690 * This function is called with hbalock held. The function will return success
6691 * after it successfully submit the iocb to firmware or after adding to the
6692 * txq.
6693 **/
6694static int
6695__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6696 struct lpfc_iocbq *piocb, uint32_t flag)
6697{
6698 struct lpfc_sglq *sglq;
James Smart4f774512009-05-22 14:52:35 -04006699 union lpfc_wqe wqe;
6700 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
James Smart4f774512009-05-22 14:52:35 -04006701
6702 if (piocb->sli4_xritag == NO_XRI) {
6703 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6669f9b2009-10-02 15:16:45 -04006704 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04006705 sglq = NULL;
6706 else {
James Smart2a9bf3d2010-06-07 15:24:45 -04006707 if (pring->txq_cnt) {
6708 if (!(flag & SLI_IOCB_RET_IOCB)) {
6709 __lpfc_sli_ringtx_put(phba,
6710 pring, piocb);
6711 return IOCB_SUCCESS;
6712 } else {
6713 return IOCB_BUSY;
6714 }
6715 } else {
James Smart19ca7602010-11-20 23:11:55 -05006716 sglq = __lpfc_sli_get_sglq(phba, piocb);
James Smart2a9bf3d2010-06-07 15:24:45 -04006717 if (!sglq) {
6718 if (!(flag & SLI_IOCB_RET_IOCB)) {
6719 __lpfc_sli_ringtx_put(phba,
6720 pring,
6721 piocb);
6722 return IOCB_SUCCESS;
6723 } else
6724 return IOCB_BUSY;
6725 }
6726 }
James Smart4f774512009-05-22 14:52:35 -04006727 }
6728 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6729 sglq = NULL; /* These IO's already have an XRI and
6730 * a mapped sgl.
6731 */
6732 } else {
6733 /* This is a continuation of a commandi,(CX) so this
6734 * sglq is on the active list
6735 */
6736 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6737 if (!sglq)
6738 return IOCB_ERROR;
6739 }
6740
6741 if (sglq) {
James Smart2a9bf3d2010-06-07 15:24:45 -04006742 piocb->sli4_xritag = sglq->sli4_xritag;
6743
6744 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
James Smart4f774512009-05-22 14:52:35 -04006745 return IOCB_ERROR;
6746 }
6747
6748 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6749 return IOCB_ERROR;
6750
James Smart341af102010-01-26 23:07:37 -05006751 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6752 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smart5ffc2662009-11-18 15:39:44 -05006753 /*
6754 * For FCP command IOCB, get a new WQ index to distribute
6755 * WQE across the WQsr. On the other hand, for abort IOCB,
6756 * it carries the same WQ index to the original command
6757 * IOCB.
6758 */
James Smart341af102010-01-26 23:07:37 -05006759 if (piocb->iocb_flag & LPFC_IO_FCP)
James Smart5ffc2662009-11-18 15:39:44 -05006760 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6761 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6762 &wqe))
James Smart4f774512009-05-22 14:52:35 -04006763 return IOCB_ERROR;
6764 } else {
6765 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6766 return IOCB_ERROR;
6767 }
6768 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6769
6770 return 0;
6771}
6772
6773/**
James Smart3772a992009-05-22 14:50:54 -04006774 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6775 *
6776 * This routine wraps the actual lockless version for issusing IOCB function
6777 * pointer from the lpfc_hba struct.
6778 *
6779 * Return codes:
6780 * IOCB_ERROR - Error
6781 * IOCB_SUCCESS - Success
6782 * IOCB_BUSY - Busy
6783 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04006784int
James Smart3772a992009-05-22 14:50:54 -04006785__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6786 struct lpfc_iocbq *piocb, uint32_t flag)
6787{
6788 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6789}
6790
6791/**
6792 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6793 * @phba: The hba struct for which this call is being executed.
6794 * @dev_grp: The HBA PCI-Device group number.
6795 *
6796 * This routine sets up the SLI interface API function jump table in @phba
6797 * struct.
6798 * Returns: 0 - success, -ENODEV - failure.
6799 **/
6800int
6801lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6802{
6803
6804 switch (dev_grp) {
6805 case LPFC_PCI_DEV_LP:
6806 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6807 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6808 break;
James Smart4f774512009-05-22 14:52:35 -04006809 case LPFC_PCI_DEV_OC:
6810 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6811 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6812 break;
James Smart3772a992009-05-22 14:50:54 -04006813 default:
6814 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6815 "1419 Invalid HBA PCI-device group: 0x%x\n",
6816 dev_grp);
6817 return -ENODEV;
6818 break;
6819 }
6820 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6821 return 0;
6822}
James Smart92d7f7b2007-06-17 19:56:38 -05006823
James Smarte59058c2008-08-24 21:49:00 -04006824/**
James Smart3621a712009-04-06 18:47:14 -04006825 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04006826 * @phba: Pointer to HBA context object.
6827 * @pring: Pointer to driver SLI ring object.
6828 * @piocb: Pointer to command iocb.
6829 * @flag: Flag indicating if this command can be put into txq.
6830 *
6831 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6832 * function. This function gets the hbalock and calls
6833 * __lpfc_sli_issue_iocb function and will return the error returned
6834 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6835 * functions which do not hold hbalock.
6836 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006837int
James Smart3772a992009-05-22 14:50:54 -04006838lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05006839 struct lpfc_iocbq *piocb, uint32_t flag)
6840{
6841 unsigned long iflags;
6842 int rc;
6843
6844 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart3772a992009-05-22 14:50:54 -04006845 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
James Smart92d7f7b2007-06-17 19:56:38 -05006846 spin_unlock_irqrestore(&phba->hbalock, iflags);
6847
6848 return rc;
6849}
6850
James Smarte59058c2008-08-24 21:49:00 -04006851/**
James Smart3621a712009-04-06 18:47:14 -04006852 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006853 * @phba: Pointer to HBA context object.
6854 *
6855 * This function is called while driver attaches with the
6856 * HBA to setup the extra ring. The extra ring is used
6857 * only when driver needs to support target mode functionality
6858 * or IP over FC functionalities.
6859 *
6860 * This function is called with no lock held.
6861 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006862static int
6863lpfc_extra_ring_setup( struct lpfc_hba *phba)
6864{
6865 struct lpfc_sli *psli;
6866 struct lpfc_sli_ring *pring;
6867
6868 psli = &phba->sli;
6869
6870 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05006871
6872 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006873 pring = &psli->ring[psli->fcp_ring];
6874 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6875 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6876 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6877 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6878
James Smarta4bc3372006-12-02 13:34:16 -05006879 /* and give them to the extra ring */
6880 pring = &psli->ring[psli->extra_ring];
6881
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006882 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6883 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6884 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6885 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6886
6887 /* Setup default profile for this ring */
6888 pring->iotag_max = 4096;
6889 pring->num_mask = 1;
6890 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05006891 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6892 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006893 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6894 return 0;
6895}
6896
James Smarte59058c2008-08-24 21:49:00 -04006897/**
James Smart3621a712009-04-06 18:47:14 -04006898 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04006899 * @phba: Pointer to HBA context object.
6900 * @pring: Pointer to driver SLI ring object.
6901 * @iocbq: Pointer to iocb object.
6902 *
6903 * This function is called by the slow ring event handler
6904 * function when there is an ASYNC event iocb in the ring.
6905 * This function is called with no lock held.
6906 * Currently this function handles only temperature related
6907 * ASYNC events. The function decodes the temperature sensor
6908 * event message and posts events for the management applications.
6909 **/
James Smart98c9ea52007-10-27 13:37:33 -04006910static void
James Smart57127f12007-10-27 13:37:05 -04006911lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6912 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6913{
6914 IOCB_t *icmd;
6915 uint16_t evt_code;
6916 uint16_t temp;
6917 struct temp_event temp_event_data;
6918 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04006919 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04006920
6921 icmd = &iocbq->iocb;
6922 evt_code = icmd->un.asyncstat.evt_code;
6923 temp = icmd->ulpContext;
6924
6925 if ((evt_code != ASYNC_TEMP_WARN) &&
6926 (evt_code != ASYNC_TEMP_SAFE)) {
James Smarta257bf92009-04-06 18:48:10 -04006927 iocb_w = (uint32_t *) icmd;
James Smart57127f12007-10-27 13:37:05 -04006928 lpfc_printf_log(phba,
6929 KERN_ERR,
6930 LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006931 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04006932 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04006933 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6934 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6935 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6936 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smart57127f12007-10-27 13:37:05 -04006937 pring->ringno,
James Smarta257bf92009-04-06 18:48:10 -04006938 icmd->un.asyncstat.evt_code,
6939 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6940 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6941 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6942 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6943
James Smart57127f12007-10-27 13:37:05 -04006944 return;
6945 }
6946 temp_event_data.data = (uint32_t)temp;
6947 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6948 if (evt_code == ASYNC_TEMP_WARN) {
6949 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6950 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006951 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006952 LOG_TEMP,
James Smart76bb24e2007-10-27 13:38:00 -04006953 "0347 Adapter is very hot, please take "
James Smart57127f12007-10-27 13:37:05 -04006954 "corrective action. temperature : %d Celsius\n",
6955 temp);
6956 }
6957 if (evt_code == ASYNC_TEMP_SAFE) {
6958 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6959 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006960 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006961 LOG_TEMP,
6962 "0340 Adapter temperature is OK now. "
6963 "temperature : %d Celsius\n",
6964 temp);
6965 }
6966
6967 /* Send temperature change event to applications */
6968 shost = lpfc_shost_from_vport(phba->pport);
6969 fc_host_post_vendor_event(shost, fc_get_event_number(),
6970 sizeof(temp_event_data), (char *) &temp_event_data,
James Smartddcc50f2008-12-04 22:38:46 -05006971 LPFC_NL_VENDOR_ID);
James Smart57127f12007-10-27 13:37:05 -04006972
6973}
6974
6975
James Smarte59058c2008-08-24 21:49:00 -04006976/**
James Smart3621a712009-04-06 18:47:14 -04006977 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006978 * @phba: Pointer to HBA context object.
6979 *
6980 * lpfc_sli_setup sets up rings of the SLI interface with
6981 * number of iocbs per ring and iotags. This function is
6982 * called while driver attach to the HBA and before the
6983 * interrupts are enabled. So there is no need for locking.
6984 *
6985 * This function always returns 0.
6986 **/
dea31012005-04-17 16:05:31 -05006987int
6988lpfc_sli_setup(struct lpfc_hba *phba)
6989{
James Smarted957682007-06-17 19:56:37 -05006990 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05006991 struct lpfc_sli *psli = &phba->sli;
6992 struct lpfc_sli_ring *pring;
6993
6994 psli->num_rings = MAX_CONFIGURED_RINGS;
6995 psli->sli_flag = 0;
6996 psli->fcp_ring = LPFC_FCP_RING;
6997 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05006998 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05006999
James Bottomley604a3e32005-10-29 10:28:33 -05007000 psli->iocbq_lookup = NULL;
7001 psli->iocbq_lookup_len = 0;
7002 psli->last_iotag = 0;
7003
dea31012005-04-17 16:05:31 -05007004 for (i = 0; i < psli->num_rings; i++) {
7005 pring = &psli->ring[i];
7006 switch (i) {
7007 case LPFC_FCP_RING: /* ring 0 - FCP */
7008 /* numCiocb and numRiocb are used in config_port */
7009 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
7010 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
7011 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
7012 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
7013 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
7014 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05007015 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007016 SLI3_IOCB_CMD_SIZE :
7017 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05007018 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007019 SLI3_IOCB_RSP_SIZE :
7020 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05007021 pring->iotag_ctr = 0;
7022 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05007023 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05007024 pring->fast_iotag = pring->iotag_max;
7025 pring->num_mask = 0;
7026 break;
James Smarta4bc3372006-12-02 13:34:16 -05007027 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05007028 /* numCiocb and numRiocb are used in config_port */
7029 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
7030 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05007031 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007032 SLI3_IOCB_CMD_SIZE :
7033 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05007034 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007035 SLI3_IOCB_RSP_SIZE :
7036 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05007037 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05007038 pring->num_mask = 0;
7039 break;
7040 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
7041 /* numCiocb and numRiocb are used in config_port */
7042 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
7043 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05007044 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007045 SLI3_IOCB_CMD_SIZE :
7046 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05007047 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05007048 SLI3_IOCB_RSP_SIZE :
7049 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05007050 pring->fast_iotag = 0;
7051 pring->iotag_ctr = 0;
7052 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04007053 pring->lpfc_sli_rcv_async_status =
7054 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04007055 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05007056 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04007057 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
7058 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05007059 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05007060 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05007061 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04007062 pring->prt[1].rctl = FC_RCTL_ELS_REP;
7063 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05007064 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05007065 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05007066 pring->prt[2].profile = 0; /* Mask 2 */
7067 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04007068 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05007069 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04007070 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05007071 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05007072 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05007073 pring->prt[3].profile = 0; /* Mask 3 */
7074 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04007075 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05007076 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04007077 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05007078 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05007079 lpfc_ct_unsol_event;
James Smart6669f9b2009-10-02 15:16:45 -04007080 /* abort unsolicited sequence */
7081 pring->prt[4].profile = 0; /* Mask 4 */
7082 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
7083 pring->prt[4].type = FC_TYPE_BLS;
7084 pring->prt[4].lpfc_sli_rcv_unsol_event =
7085 lpfc_sli4_ct_abort_unsol_event;
dea31012005-04-17 16:05:31 -05007086 break;
7087 }
James Smarted957682007-06-17 19:56:37 -05007088 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
James Smart92d7f7b2007-06-17 19:56:38 -05007089 (pring->numRiocb * pring->sizeRiocb);
dea31012005-04-17 16:05:31 -05007090 }
James Smarted957682007-06-17 19:56:37 -05007091 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05007092 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04007093 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
7094 "SLI2 SLIM Data: x%x x%lx\n",
7095 phba->brd_no, totiocbsize,
7096 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05007097 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05007098 if (phba->cfg_multi_ring_support == 2)
7099 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05007100
7101 return 0;
7102}
7103
James Smarte59058c2008-08-24 21:49:00 -04007104/**
James Smart3621a712009-04-06 18:47:14 -04007105 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04007106 * @phba: Pointer to HBA context object.
7107 *
7108 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
7109 * ring. This function also initializes ring indices of each ring.
7110 * This function is called during the initialization of the SLI
7111 * interface of an HBA.
7112 * This function is called with no lock held and always returns
7113 * 1.
7114 **/
dea31012005-04-17 16:05:31 -05007115int
James Smart2e0fef82007-06-17 19:56:36 -05007116lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05007117{
7118 struct lpfc_sli *psli;
7119 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05007120 int i;
dea31012005-04-17 16:05:31 -05007121
7122 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05007123 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007124 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05007125 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05007126 /* Initialize list headers for txq and txcmplq as double linked lists */
7127 for (i = 0; i < psli->num_rings; i++) {
7128 pring = &psli->ring[i];
7129 pring->ringno = i;
7130 pring->next_cmdidx = 0;
7131 pring->local_getidx = 0;
7132 pring->cmdidx = 0;
7133 INIT_LIST_HEAD(&pring->txq);
7134 INIT_LIST_HEAD(&pring->txcmplq);
7135 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05007136 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05007137 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05007138 }
James Smart2e0fef82007-06-17 19:56:36 -05007139 spin_unlock_irq(&phba->hbalock);
7140 return 1;
dea31012005-04-17 16:05:31 -05007141}
7142
James Smarte59058c2008-08-24 21:49:00 -04007143/**
James Smart04c68492009-05-22 14:52:52 -04007144 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
7145 * @phba: Pointer to HBA context object.
7146 *
7147 * This routine flushes the mailbox command subsystem. It will unconditionally
7148 * flush all the mailbox commands in the three possible stages in the mailbox
7149 * command sub-system: pending mailbox command queue; the outstanding mailbox
7150 * command; and completed mailbox command queue. It is caller's responsibility
7151 * to make sure that the driver is in the proper state to flush the mailbox
7152 * command sub-system. Namely, the posting of mailbox commands into the
7153 * pending mailbox command queue from the various clients must be stopped;
7154 * either the HBA is in a state that it will never works on the outstanding
7155 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
7156 * mailbox command has been completed.
7157 **/
7158static void
7159lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
7160{
7161 LIST_HEAD(completions);
7162 struct lpfc_sli *psli = &phba->sli;
7163 LPFC_MBOXQ_t *pmb;
7164 unsigned long iflag;
7165
7166 /* Flush all the mailbox commands in the mbox system */
7167 spin_lock_irqsave(&phba->hbalock, iflag);
7168 /* The pending mailbox command queue */
7169 list_splice_init(&phba->sli.mboxq, &completions);
7170 /* The outstanding active mailbox command */
7171 if (psli->mbox_active) {
7172 list_add_tail(&psli->mbox_active->list, &completions);
7173 psli->mbox_active = NULL;
7174 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
7175 }
7176 /* The completed mailbox command queue */
7177 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
7178 spin_unlock_irqrestore(&phba->hbalock, iflag);
7179
7180 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
7181 while (!list_empty(&completions)) {
7182 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
7183 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
7184 if (pmb->mbox_cmpl)
7185 pmb->mbox_cmpl(phba, pmb);
7186 }
7187}
7188
7189/**
James Smart3621a712009-04-06 18:47:14 -04007190 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04007191 * @vport: Pointer to virtual port object.
7192 *
7193 * lpfc_sli_host_down is called to clean up the resources
7194 * associated with a vport before destroying virtual
7195 * port data structures.
7196 * This function does following operations:
7197 * - Free discovery resources associated with this virtual
7198 * port.
7199 * - Free iocbs associated with this virtual port in
7200 * the txq.
7201 * - Send abort for all iocb commands associated with this
7202 * vport in txcmplq.
7203 *
7204 * This function is called with no lock held and always returns 1.
7205 **/
dea31012005-04-17 16:05:31 -05007206int
James Smart92d7f7b2007-06-17 19:56:38 -05007207lpfc_sli_host_down(struct lpfc_vport *vport)
7208{
James Smart858c9f62007-06-17 19:56:39 -05007209 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05007210 struct lpfc_hba *phba = vport->phba;
7211 struct lpfc_sli *psli = &phba->sli;
7212 struct lpfc_sli_ring *pring;
7213 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05007214 int i;
7215 unsigned long flags = 0;
7216 uint16_t prev_pring_flag;
7217
7218 lpfc_cleanup_discovery_resources(vport);
7219
7220 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05007221 for (i = 0; i < psli->num_rings; i++) {
7222 pring = &psli->ring[i];
7223 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04007224 /* Only slow rings */
7225 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05007226 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04007227 /* Set the lpfc data pending flag */
7228 set_bit(LPFC_DATA_READY, &phba->data_flags);
7229 }
James Smart92d7f7b2007-06-17 19:56:38 -05007230 /*
7231 * Error everything on the txq since these iocbs have not been
7232 * given to the FW yet.
7233 */
James Smart92d7f7b2007-06-17 19:56:38 -05007234 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
7235 if (iocb->vport != vport)
7236 continue;
James Smart858c9f62007-06-17 19:56:39 -05007237 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05007238 pring->txq_cnt--;
James Smart92d7f7b2007-06-17 19:56:38 -05007239 }
7240
7241 /* Next issue ABTS for everything on the txcmplq */
7242 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
7243 list) {
7244 if (iocb->vport != vport)
7245 continue;
7246 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
7247 }
7248
7249 pring->flag = prev_pring_flag;
7250 }
7251
7252 spin_unlock_irqrestore(&phba->hbalock, flags);
7253
James Smarta257bf92009-04-06 18:48:10 -04007254 /* Cancel all the IOCBs from the completions list */
7255 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
7256 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05007257 return 1;
7258}
7259
James Smarte59058c2008-08-24 21:49:00 -04007260/**
James Smart3621a712009-04-06 18:47:14 -04007261 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04007262 * @phba: Pointer to HBA context object.
7263 *
7264 * This function cleans up all iocb, buffers, mailbox commands
7265 * while shutting down the HBA. This function is called with no
7266 * lock held and always returns 1.
7267 * This function does the following to cleanup driver resources:
7268 * - Free discovery resources for each virtual port
7269 * - Cleanup any pending fabric iocbs
7270 * - Iterate through the iocb txq and free each entry
7271 * in the list.
7272 * - Free up any buffer posted to the HBA
7273 * - Free mailbox commands in the mailbox queue.
7274 **/
James Smart92d7f7b2007-06-17 19:56:38 -05007275int
James Smart2e0fef82007-06-17 19:56:36 -05007276lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05007277{
James Smart2534ba72007-04-25 09:52:20 -04007278 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05007279 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05007280 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05007281 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05007282 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04007283 int i;
7284
7285 /* Shutdown the mailbox command sub-system */
7286 lpfc_sli_mbox_sys_shutdown(phba);
dea31012005-04-17 16:05:31 -05007287
dea31012005-04-17 16:05:31 -05007288 lpfc_hba_down_prep(phba);
7289
James Smart92d7f7b2007-06-17 19:56:38 -05007290 lpfc_fabric_abort_hba(phba);
7291
James Smart2e0fef82007-06-17 19:56:36 -05007292 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05007293 for (i = 0; i < psli->num_rings; i++) {
7294 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04007295 /* Only slow rings */
7296 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05007297 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04007298 /* Set the lpfc data pending flag */
7299 set_bit(LPFC_DATA_READY, &phba->data_flags);
7300 }
dea31012005-04-17 16:05:31 -05007301
7302 /*
7303 * Error everything on the txq since these iocbs have not been
7304 * given to the FW yet.
7305 */
James Smart2534ba72007-04-25 09:52:20 -04007306 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05007307 pring->txq_cnt = 0;
7308
dea31012005-04-17 16:05:31 -05007309 }
James Smart2e0fef82007-06-17 19:56:36 -05007310 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05007311
James Smarta257bf92009-04-06 18:48:10 -04007312 /* Cancel all the IOCBs from the completions list */
7313 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
7314 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04007315
James Smart0ff10d42008-01-11 01:52:36 -05007316 spin_lock_irqsave(&phba->hbalock, flags);
7317 list_splice_init(&phba->elsbuf, &completions);
7318 phba->elsbuf_cnt = 0;
7319 phba->elsbuf_prev_cnt = 0;
7320 spin_unlock_irqrestore(&phba->hbalock, flags);
7321
7322 while (!list_empty(&completions)) {
7323 list_remove_head(&completions, buf_ptr,
7324 struct lpfc_dmabuf, list);
7325 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
7326 kfree(buf_ptr);
7327 }
7328
dea31012005-04-17 16:05:31 -05007329 /* Return any active mbox cmds */
7330 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05007331
James Smartda0436e2009-05-22 14:51:39 -04007332 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05007333 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04007334 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05007335
James Smartda0436e2009-05-22 14:51:39 -04007336 return 1;
7337}
James Smart92d7f7b2007-06-17 19:56:38 -05007338
James Smartda0436e2009-05-22 14:51:39 -04007339/**
James Smart3621a712009-04-06 18:47:14 -04007340 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04007341 * @srcp: Source memory pointer.
7342 * @destp: Destination memory pointer.
7343 * @cnt: Number of words required to be copied.
7344 *
7345 * This function is used for copying data between driver memory
7346 * and the SLI memory. This function also changes the endianness
7347 * of each word if native endianness is different from SLI
7348 * endianness. This function can be called with or without
7349 * lock.
7350 **/
dea31012005-04-17 16:05:31 -05007351void
7352lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
7353{
7354 uint32_t *src = srcp;
7355 uint32_t *dest = destp;
7356 uint32_t ldata;
7357 int i;
7358
7359 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
7360 ldata = *src;
7361 ldata = le32_to_cpu(ldata);
7362 *dest = ldata;
7363 src++;
7364 dest++;
7365 }
7366}
7367
James Smarte59058c2008-08-24 21:49:00 -04007368
7369/**
James Smarta0c87cb2009-07-19 10:01:10 -04007370 * lpfc_sli_bemem_bcopy - SLI memory copy function
7371 * @srcp: Source memory pointer.
7372 * @destp: Destination memory pointer.
7373 * @cnt: Number of words required to be copied.
7374 *
7375 * This function is used for copying data between a data structure
7376 * with big endian representation to local endianness.
7377 * This function can be called with or without lock.
7378 **/
7379void
7380lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
7381{
7382 uint32_t *src = srcp;
7383 uint32_t *dest = destp;
7384 uint32_t ldata;
7385 int i;
7386
7387 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
7388 ldata = *src;
7389 ldata = be32_to_cpu(ldata);
7390 *dest = ldata;
7391 src++;
7392 dest++;
7393 }
7394}
7395
7396/**
James Smart3621a712009-04-06 18:47:14 -04007397 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04007398 * @phba: Pointer to HBA context object.
7399 * @pring: Pointer to driver SLI ring object.
7400 * @mp: Pointer to driver buffer object.
7401 *
7402 * This function is called with no lock held.
7403 * It always return zero after adding the buffer to the postbufq
7404 * buffer list.
7405 **/
dea31012005-04-17 16:05:31 -05007406int
James Smart2e0fef82007-06-17 19:56:36 -05007407lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7408 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05007409{
7410 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7411 later */
James Smart2e0fef82007-06-17 19:56:36 -05007412 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007413 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05007414 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05007415 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007416 return 0;
7417}
7418
James Smarte59058c2008-08-24 21:49:00 -04007419/**
James Smart3621a712009-04-06 18:47:14 -04007420 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04007421 * @phba: Pointer to HBA context object.
7422 *
7423 * When HBQ is enabled, buffers are searched based on tags. This function
7424 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7425 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7426 * does not conflict with tags of buffer posted for unsolicited events.
7427 * The function returns the allocated tag. The function is called with
7428 * no locks held.
7429 **/
James Smart76bb24e2007-10-27 13:38:00 -04007430uint32_t
7431lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
7432{
7433 spin_lock_irq(&phba->hbalock);
7434 phba->buffer_tag_count++;
7435 /*
7436 * Always set the QUE_BUFTAG_BIT to distiguish between
7437 * a tag assigned by HBQ.
7438 */
7439 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
7440 spin_unlock_irq(&phba->hbalock);
7441 return phba->buffer_tag_count;
7442}
7443
James Smarte59058c2008-08-24 21:49:00 -04007444/**
James Smart3621a712009-04-06 18:47:14 -04007445 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04007446 * @phba: Pointer to HBA context object.
7447 * @pring: Pointer to driver SLI ring object.
7448 * @tag: Buffer tag.
7449 *
7450 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7451 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7452 * iocb is posted to the response ring with the tag of the buffer.
7453 * This function searches the pring->postbufq list using the tag
7454 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7455 * iocb. If the buffer is found then lpfc_dmabuf object of the
7456 * buffer is returned to the caller else NULL is returned.
7457 * This function is called with no lock held.
7458 **/
James Smart76bb24e2007-10-27 13:38:00 -04007459struct lpfc_dmabuf *
7460lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7461 uint32_t tag)
7462{
7463 struct lpfc_dmabuf *mp, *next_mp;
7464 struct list_head *slp = &pring->postbufq;
7465
7466 /* Search postbufq, from the begining, looking for a match on tag */
7467 spin_lock_irq(&phba->hbalock);
7468 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7469 if (mp->buffer_tag == tag) {
7470 list_del_init(&mp->list);
7471 pring->postbufq_cnt--;
7472 spin_unlock_irq(&phba->hbalock);
7473 return mp;
7474 }
7475 }
7476
7477 spin_unlock_irq(&phba->hbalock);
7478 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04007479 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04007480 "ring %d Data x%lx x%p x%p x%x\n",
7481 pring->ringno, (unsigned long) tag,
7482 slp->next, slp->prev, pring->postbufq_cnt);
7483
7484 return NULL;
7485}
dea31012005-04-17 16:05:31 -05007486
James Smarte59058c2008-08-24 21:49:00 -04007487/**
James Smart3621a712009-04-06 18:47:14 -04007488 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04007489 * @phba: Pointer to HBA context object.
7490 * @pring: Pointer to driver SLI ring object.
7491 * @phys: DMA address of the buffer.
7492 *
7493 * This function searches the buffer list using the dma_address
7494 * of unsolicited event to find the driver's lpfc_dmabuf object
7495 * corresponding to the dma_address. The function returns the
7496 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7497 * This function is called by the ct and els unsolicited event
7498 * handlers to get the buffer associated with the unsolicited
7499 * event.
7500 *
7501 * This function is called with no lock held.
7502 **/
dea31012005-04-17 16:05:31 -05007503struct lpfc_dmabuf *
7504lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7505 dma_addr_t phys)
7506{
7507 struct lpfc_dmabuf *mp, *next_mp;
7508 struct list_head *slp = &pring->postbufq;
7509
7510 /* Search postbufq, from the begining, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05007511 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007512 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7513 if (mp->phys == phys) {
7514 list_del_init(&mp->list);
7515 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05007516 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007517 return mp;
7518 }
7519 }
7520
James Smart2e0fef82007-06-17 19:56:36 -05007521 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007522 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04007523 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05007524 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007525 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05007526 slp->next, slp->prev, pring->postbufq_cnt);
7527 return NULL;
7528}
7529
James Smarte59058c2008-08-24 21:49:00 -04007530/**
James Smart3621a712009-04-06 18:47:14 -04007531 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04007532 * @phba: Pointer to HBA context object.
7533 * @cmdiocb: Pointer to driver command iocb object.
7534 * @rspiocb: Pointer to driver response iocb object.
7535 *
7536 * This function is the completion handler for the abort iocbs for
7537 * ELS commands. This function is called from the ELS ring event
7538 * handler with no lock held. This function frees memory resources
7539 * associated with the abort iocb.
7540 **/
dea31012005-04-17 16:05:31 -05007541static void
James Smart2e0fef82007-06-17 19:56:36 -05007542lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7543 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05007544{
James Smart2e0fef82007-06-17 19:56:36 -05007545 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04007546 uint16_t abort_iotag, abort_context;
James Smart92d7f7b2007-06-17 19:56:38 -05007547 struct lpfc_iocbq *abort_iocb;
James Smart2680eea2007-04-25 09:52:55 -04007548 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7549
7550 abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04007551
7552 if (irsp->ulpStatus) {
7553 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7554 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7555
James Smart2e0fef82007-06-17 19:56:36 -05007556 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -04007557 if (phba->sli_rev < LPFC_SLI_REV4) {
7558 if (abort_iotag != 0 &&
7559 abort_iotag <= phba->sli.last_iotag)
7560 abort_iocb =
7561 phba->sli.iocbq_lookup[abort_iotag];
7562 } else
7563 /* For sli4 the abort_tag is the XRI,
7564 * so the abort routine puts the iotag of the iocb
7565 * being aborted in the context field of the abort
7566 * IOCB.
7567 */
7568 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -04007569
James Smart2680eea2007-04-25 09:52:55 -04007570 /*
James Smart58da1ff2008-04-07 10:15:56 -04007571 * If the iocb is not found in Firmware queue the iocb
7572 * might have completed already. Do not free it again.
7573 */
James Smart9b379602008-04-07 10:16:00 -04007574 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
James Smart45ed1192009-10-02 15:17:02 -04007575 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7576 spin_unlock_irq(&phba->hbalock);
7577 lpfc_sli_release_iocbq(phba, cmdiocb);
7578 return;
7579 }
7580 /* For SLI4 the ulpContext field for abort IOCB
7581 * holds the iotag of the IOCB being aborted so
7582 * the local abort_context needs to be reset to
7583 * match the aborted IOCBs ulpContext.
7584 */
7585 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7586 abort_context = abort_iocb->iocb.ulpContext;
James Smart58da1ff2008-04-07 10:15:56 -04007587 }
James Smart2a9bf3d2010-06-07 15:24:45 -04007588
7589 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
7590 "0327 Cannot abort els iocb %p "
7591 "with tag %x context %x, abort status %x, "
7592 "abort code %x\n",
7593 abort_iocb, abort_iotag, abort_context,
7594 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart58da1ff2008-04-07 10:15:56 -04007595 /*
James Smart2680eea2007-04-25 09:52:55 -04007596 * make sure we have the right iocbq before taking it
7597 * off the txcmplq and try to call completion routine.
7598 */
James Smart2e0fef82007-06-17 19:56:36 -05007599 if (!abort_iocb ||
7600 abort_iocb->iocb.ulpContext != abort_context ||
7601 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7602 spin_unlock_irq(&phba->hbalock);
James Smart341af102010-01-26 23:07:37 -05007603 else if (phba->sli_rev < LPFC_SLI_REV4) {
7604 /*
7605 * leave the SLI4 aborted command on the txcmplq
7606 * list and the command complete WCQE's XB bit
7607 * will tell whether the SGL (XRI) can be released
7608 * immediately or to the aborted SGL list for the
7609 * following abort XRI from the HBA.
7610 */
James Smart92d7f7b2007-06-17 19:56:38 -05007611 list_del_init(&abort_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04007612 if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) {
7613 abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
7614 pring->txcmplq_cnt--;
7615 }
James Smart2680eea2007-04-25 09:52:55 -04007616
James Smart0ff10d42008-01-11 01:52:36 -05007617 /* Firmware could still be in progress of DMAing
7618 * payload, so don't free data buffer till after
7619 * a hbeat.
7620 */
7621 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart92d7f7b2007-06-17 19:56:38 -05007622 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05007623 spin_unlock_irq(&phba->hbalock);
7624
James Smart92d7f7b2007-06-17 19:56:38 -05007625 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
James Smart341af102010-01-26 23:07:37 -05007626 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
James Smart92d7f7b2007-06-17 19:56:38 -05007627 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
James Smart49198b32010-04-06 15:04:33 -04007628 } else
7629 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04007630 }
7631
James Bottomley604a3e32005-10-29 10:28:33 -05007632 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05007633 return;
7634}
7635
James Smarte59058c2008-08-24 21:49:00 -04007636/**
James Smart3621a712009-04-06 18:47:14 -04007637 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04007638 * @phba: Pointer to HBA context object.
7639 * @cmdiocb: Pointer to driver command iocb object.
7640 * @rspiocb: Pointer to driver response iocb object.
7641 *
7642 * The function is called from SLI ring event handler with no
7643 * lock held. This function is the completion handler for ELS commands
7644 * which are aborted. The function frees memory resources used for
7645 * the aborted ELS commands.
7646 **/
James Smart92d7f7b2007-06-17 19:56:38 -05007647static void
7648lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7649 struct lpfc_iocbq *rspiocb)
7650{
7651 IOCB_t *irsp = &rspiocb->iocb;
7652
7653 /* ELS cmd tag <ulpIoTag> completes */
7654 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04007655 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007656 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007657 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05007658 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05007659 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7660 lpfc_ct_free_iocb(phba, cmdiocb);
7661 else
7662 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05007663 return;
7664}
7665
James Smarte59058c2008-08-24 21:49:00 -04007666/**
James Smart5af5eee2010-10-22 11:06:38 -04007667 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04007668 * @phba: Pointer to HBA context object.
7669 * @pring: Pointer to driver SLI ring object.
7670 * @cmdiocb: Pointer to driver command iocb object.
7671 *
James Smart5af5eee2010-10-22 11:06:38 -04007672 * This function issues an abort iocb for the provided command iocb down to
7673 * the port. Other than the case the outstanding command iocb is an abort
7674 * request, this function issues abort out unconditionally. This function is
7675 * called with hbalock held. The function returns 0 when it fails due to
7676 * memory allocation failure or when the command iocb is an abort request.
James Smarte59058c2008-08-24 21:49:00 -04007677 **/
James Smart5af5eee2010-10-22 11:06:38 -04007678static int
7679lpfc_sli_abort_iotag_issue(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05007680 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05007681{
James Smart2e0fef82007-06-17 19:56:36 -05007682 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007683 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05007684 IOCB_t *icmd = NULL;
7685 IOCB_t *iabt = NULL;
James Smart5af5eee2010-10-22 11:06:38 -04007686 int retval;
James Smart07951072007-04-25 09:51:38 -04007687
James Smart92d7f7b2007-06-17 19:56:38 -05007688 /*
7689 * There are certain command types we don't want to abort. And we
7690 * don't want to abort commands that are already in the process of
7691 * being aborted.
James Smart07951072007-04-25 09:51:38 -04007692 */
7693 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05007694 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05007695 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7696 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04007697 return 0;
7698
dea31012005-04-17 16:05:31 -05007699 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05007700 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007701 if (abtsiocbp == NULL)
7702 return 0;
dea31012005-04-17 16:05:31 -05007703
James Smart07951072007-04-25 09:51:38 -04007704 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -05007705 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -04007706 */
7707 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7708
dea31012005-04-17 16:05:31 -05007709 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04007710 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7711 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -04007712 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04007713 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -04007714 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7715 }
James Smartda0436e2009-05-22 14:51:39 -04007716 else
7717 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007718 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04007719 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05007720
James Smart5ffc2662009-11-18 15:39:44 -05007721 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7722 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05007723 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7724 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05007725
James Smart2e0fef82007-06-17 19:56:36 -05007726 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04007727 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7728 else
7729 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7730
7731 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04007732
James Smarte8b62012007-08-02 11:10:09 -04007733 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7734 "0339 Abort xri x%x, original iotag x%x, "
7735 "abort cmd iotag x%x\n",
James Smart2a9bf3d2010-06-07 15:24:45 -04007736 iabt->un.acxri.abortIoTag,
James Smarte8b62012007-08-02 11:10:09 -04007737 iabt->un.acxri.abortContextTag,
James Smart2a9bf3d2010-06-07 15:24:45 -04007738 abtsiocbp->iotag);
James Smartda0436e2009-05-22 14:51:39 -04007739 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
James Smart07951072007-04-25 09:51:38 -04007740
James Smartd7c255b2008-08-24 21:50:00 -04007741 if (retval)
7742 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart5af5eee2010-10-22 11:06:38 -04007743
7744 /*
7745 * Caller to this routine should check for IOCB_ERROR
7746 * and handle it properly. This routine no longer removes
7747 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7748 */
7749 return retval;
7750}
7751
7752/**
7753 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7754 * @phba: Pointer to HBA context object.
7755 * @pring: Pointer to driver SLI ring object.
7756 * @cmdiocb: Pointer to driver command iocb object.
7757 *
7758 * This function issues an abort iocb for the provided command iocb. In case
7759 * of unloading, the abort iocb will not be issued to commands on the ELS
7760 * ring. Instead, the callback function shall be changed to those commands
7761 * so that nothing happens when them finishes. This function is called with
7762 * hbalock held. The function returns 0 when the command iocb is an abort
7763 * request.
7764 **/
7765int
7766lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7767 struct lpfc_iocbq *cmdiocb)
7768{
7769 struct lpfc_vport *vport = cmdiocb->vport;
7770 int retval = IOCB_ERROR;
7771 IOCB_t *icmd = NULL;
7772
7773 /*
7774 * There are certain command types we don't want to abort. And we
7775 * don't want to abort commands that are already in the process of
7776 * being aborted.
7777 */
7778 icmd = &cmdiocb->iocb;
7779 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
7780 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7781 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
7782 return 0;
7783
7784 /*
7785 * If we're unloading, don't abort iocb on the ELS ring, but change
7786 * the callback so that nothing happens when it finishes.
7787 */
7788 if ((vport->load_flag & FC_UNLOADING) &&
7789 (pring->ringno == LPFC_ELS_RING)) {
7790 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7791 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7792 else
7793 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
7794 goto abort_iotag_exit;
7795 }
7796
7797 /* Now, we try to issue the abort to the cmdiocb out */
7798 retval = lpfc_sli_abort_iotag_issue(phba, pring, cmdiocb);
7799
James Smart07951072007-04-25 09:51:38 -04007800abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05007801 /*
7802 * Caller to this routine should check for IOCB_ERROR
7803 * and handle it properly. This routine no longer removes
7804 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04007805 */
James Smart2e0fef82007-06-17 19:56:36 -05007806 return retval;
dea31012005-04-17 16:05:31 -05007807}
7808
James Smarte59058c2008-08-24 21:49:00 -04007809/**
James Smart5af5eee2010-10-22 11:06:38 -04007810 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
7811 * @phba: Pointer to HBA context object.
7812 * @pring: Pointer to driver SLI ring object.
7813 *
7814 * This function aborts all iocbs in the given ring and frees all the iocb
7815 * objects in txq. This function issues abort iocbs unconditionally for all
7816 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
7817 * to complete before the return of this function. The caller is not required
7818 * to hold any locks.
7819 **/
7820static void
7821lpfc_sli_iocb_ring_abort(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
7822{
7823 LIST_HEAD(completions);
7824 struct lpfc_iocbq *iocb, *next_iocb;
7825
7826 if (pring->ringno == LPFC_ELS_RING)
7827 lpfc_fabric_abort_hba(phba);
7828
7829 spin_lock_irq(&phba->hbalock);
7830
7831 /* Take off all the iocbs on txq for cancelling */
7832 list_splice_init(&pring->txq, &completions);
7833 pring->txq_cnt = 0;
7834
7835 /* Next issue ABTS for everything on the txcmplq */
7836 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
7837 lpfc_sli_abort_iotag_issue(phba, pring, iocb);
7838
7839 spin_unlock_irq(&phba->hbalock);
7840
7841 /* Cancel all the IOCBs from the completions list */
7842 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
7843 IOERR_SLI_ABORTED);
7844}
7845
7846/**
7847 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
7848 * @phba: pointer to lpfc HBA data structure.
7849 *
7850 * This routine will abort all pending and outstanding iocbs to an HBA.
7851 **/
7852void
7853lpfc_sli_hba_iocb_abort(struct lpfc_hba *phba)
7854{
7855 struct lpfc_sli *psli = &phba->sli;
7856 struct lpfc_sli_ring *pring;
7857 int i;
7858
7859 for (i = 0; i < psli->num_rings; i++) {
7860 pring = &psli->ring[i];
7861 lpfc_sli_iocb_ring_abort(phba, pring);
7862 }
7863}
7864
7865/**
James Smart3621a712009-04-06 18:47:14 -04007866 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04007867 * @iocbq: Pointer to driver iocb object.
7868 * @vport: Pointer to driver virtual port object.
7869 * @tgt_id: SCSI ID of the target.
7870 * @lun_id: LUN ID of the scsi device.
7871 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7872 *
James Smart3621a712009-04-06 18:47:14 -04007873 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04007874 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7875 * 0 if the filtering criteria is met for the given iocb and will return
7876 * 1 if the filtering criteria is not met.
7877 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7878 * given iocb is for the SCSI device specified by vport, tgt_id and
7879 * lun_id parameter.
7880 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7881 * given iocb is for the SCSI target specified by vport and tgt_id
7882 * parameters.
7883 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7884 * given iocb is for the SCSI host associated with the given vport.
7885 * This function is called with no locks held.
7886 **/
dea31012005-04-17 16:05:31 -05007887static int
James Smart51ef4c22007-08-02 11:10:31 -04007888lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7889 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007890 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007891{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007892 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05007893 int rc = 1;
7894
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007895 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7896 return rc;
7897
James Smart51ef4c22007-08-02 11:10:31 -04007898 if (iocbq->vport != vport)
7899 return rc;
7900
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007901 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007902
James Smart495a7142008-06-14 22:52:59 -04007903 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05007904 return rc;
7905
7906 switch (ctx_cmd) {
7907 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04007908 if ((lpfc_cmd->rdata->pnode) &&
7909 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7910 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05007911 rc = 0;
7912 break;
7913 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04007914 if ((lpfc_cmd->rdata->pnode) &&
7915 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05007916 rc = 0;
7917 break;
dea31012005-04-17 16:05:31 -05007918 case LPFC_CTX_HOST:
7919 rc = 0;
7920 break;
7921 default:
7922 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07007923 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05007924 break;
7925 }
7926
7927 return rc;
7928}
7929
James Smarte59058c2008-08-24 21:49:00 -04007930/**
James Smart3621a712009-04-06 18:47:14 -04007931 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04007932 * @vport: Pointer to virtual port.
7933 * @tgt_id: SCSI ID of the target.
7934 * @lun_id: LUN ID of the scsi device.
7935 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7936 *
7937 * This function returns number of FCP commands pending for the vport.
7938 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7939 * commands pending on the vport associated with SCSI device specified
7940 * by tgt_id and lun_id parameters.
7941 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7942 * commands pending on the vport associated with SCSI target specified
7943 * by tgt_id parameter.
7944 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7945 * commands pending on the vport.
7946 * This function returns the number of iocbs which satisfy the filter.
7947 * This function is called without any lock held.
7948 **/
dea31012005-04-17 16:05:31 -05007949int
James Smart51ef4c22007-08-02 11:10:31 -04007950lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7951 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007952{
James Smart51ef4c22007-08-02 11:10:31 -04007953 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007954 struct lpfc_iocbq *iocbq;
7955 int sum, i;
dea31012005-04-17 16:05:31 -05007956
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007957 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7958 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007959
James Smart51ef4c22007-08-02 11:10:31 -04007960 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7961 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007962 sum++;
dea31012005-04-17 16:05:31 -05007963 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007964
dea31012005-04-17 16:05:31 -05007965 return sum;
7966}
7967
James Smarte59058c2008-08-24 21:49:00 -04007968/**
James Smart3621a712009-04-06 18:47:14 -04007969 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -04007970 * @phba: Pointer to HBA context object
7971 * @cmdiocb: Pointer to command iocb object.
7972 * @rspiocb: Pointer to response iocb object.
7973 *
7974 * This function is called when an aborted FCP iocb completes. This
7975 * function is called by the ring event handler with no lock held.
7976 * This function frees the iocb.
7977 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007978void
James Smart2e0fef82007-06-17 19:56:36 -05007979lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7980 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007981{
James Bottomley604a3e32005-10-29 10:28:33 -05007982 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007983 return;
7984}
7985
James Smarte59058c2008-08-24 21:49:00 -04007986/**
James Smart3621a712009-04-06 18:47:14 -04007987 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -04007988 * @vport: Pointer to virtual port.
7989 * @pring: Pointer to driver SLI ring object.
7990 * @tgt_id: SCSI ID of the target.
7991 * @lun_id: LUN ID of the scsi device.
7992 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7993 *
7994 * This function sends an abort command for every SCSI command
7995 * associated with the given virtual port pending on the ring
7996 * filtered by lpfc_sli_validate_fcp_iocb function.
7997 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7998 * FCP iocbs associated with lun specified by tgt_id and lun_id
7999 * parameters
8000 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
8001 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
8002 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
8003 * FCP iocbs associated with virtual port.
8004 * This function returns number of iocbs it failed to abort.
8005 * This function is called with no locks held.
8006 **/
dea31012005-04-17 16:05:31 -05008007int
James Smart51ef4c22007-08-02 11:10:31 -04008008lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
8009 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -05008010{
James Smart51ef4c22007-08-02 11:10:31 -04008011 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04008012 struct lpfc_iocbq *iocbq;
8013 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05008014 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05008015 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04008016 int i;
dea31012005-04-17 16:05:31 -05008017
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04008018 for (i = 1; i <= phba->sli.last_iotag; i++) {
8019 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05008020
James Smart51ef4c22007-08-02 11:10:31 -04008021 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -05008022 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05008023 continue;
8024
8025 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04008026 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05008027 if (abtsiocb == NULL) {
8028 errcnt++;
8029 continue;
8030 }
dea31012005-04-17 16:05:31 -05008031
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04008032 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05008033 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
8034 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04008035 if (phba->sli_rev == LPFC_SLI_REV4)
8036 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
8037 else
8038 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05008039 abtsiocb->iocb.ulpLe = 1;
8040 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smart2e0fef82007-06-17 19:56:36 -05008041 abtsiocb->vport = phba->pport;
dea31012005-04-17 16:05:31 -05008042
James Smart5ffc2662009-11-18 15:39:44 -05008043 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
8044 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05008045 if (iocbq->iocb_flag & LPFC_IO_FCP)
8046 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05008047
James Smart2e0fef82007-06-17 19:56:36 -05008048 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -05008049 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
8050 else
8051 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
8052
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04008053 /* Setup callback routine and issue the command. */
8054 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -04008055 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
8056 abtsiocb, 0);
dea31012005-04-17 16:05:31 -05008057 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05008058 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05008059 errcnt++;
8060 continue;
8061 }
8062 }
8063
8064 return errcnt;
8065}
8066
James Smarte59058c2008-08-24 21:49:00 -04008067/**
James Smart3621a712009-04-06 18:47:14 -04008068 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -04008069 * @phba: Pointer to HBA context object.
8070 * @cmdiocbq: Pointer to command iocb.
8071 * @rspiocbq: Pointer to response iocb.
8072 *
8073 * This function is the completion handler for iocbs issued using
8074 * lpfc_sli_issue_iocb_wait function. This function is called by the
8075 * ring event handler function without any lock held. This function
8076 * can be called from both worker thread context and interrupt
8077 * context. This function also can be called from other thread which
8078 * cleans up the SLI layer objects.
8079 * This function copy the contents of the response iocb to the
8080 * response iocb memory object provided by the caller of
8081 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
8082 * sleeps for the iocb completion.
8083 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008084static void
8085lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
8086 struct lpfc_iocbq *cmdiocbq,
8087 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05008088{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008089 wait_queue_head_t *pdone_q;
8090 unsigned long iflags;
James Smart0f65ff62010-02-26 14:14:23 -05008091 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05008092
James Smart2e0fef82007-06-17 19:56:36 -05008093 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008094 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
8095 if (cmdiocbq->context2 && rspiocbq)
8096 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
8097 &rspiocbq->iocb, sizeof(IOCB_t));
8098
James Smart0f65ff62010-02-26 14:14:23 -05008099 /* Set the exchange busy flag for task management commands */
8100 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
8101 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
8102 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
8103 cur_iocbq);
8104 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
8105 }
8106
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008107 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008108 if (pdone_q)
8109 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05008110 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -05008111 return;
8112}
8113
James Smarte59058c2008-08-24 21:49:00 -04008114/**
James Smartd11e31d2009-06-10 17:23:06 -04008115 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
8116 * @phba: Pointer to HBA context object..
8117 * @piocbq: Pointer to command iocb.
8118 * @flag: Flag to test.
8119 *
8120 * This routine grabs the hbalock and then test the iocb_flag to
8121 * see if the passed in flag is set.
8122 * Returns:
8123 * 1 if flag is set.
8124 * 0 if flag is not set.
8125 **/
8126static int
8127lpfc_chk_iocb_flg(struct lpfc_hba *phba,
8128 struct lpfc_iocbq *piocbq, uint32_t flag)
8129{
8130 unsigned long iflags;
8131 int ret;
8132
8133 spin_lock_irqsave(&phba->hbalock, iflags);
8134 ret = piocbq->iocb_flag & flag;
8135 spin_unlock_irqrestore(&phba->hbalock, iflags);
8136 return ret;
8137
8138}
8139
8140/**
James Smart3621a712009-04-06 18:47:14 -04008141 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -04008142 * @phba: Pointer to HBA context object..
8143 * @pring: Pointer to sli ring.
8144 * @piocb: Pointer to command iocb.
8145 * @prspiocbq: Pointer to response iocb.
8146 * @timeout: Timeout in number of seconds.
8147 *
8148 * This function issues the iocb to firmware and waits for the
8149 * iocb to complete. If the iocb command is not
8150 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
8151 * Caller should not free the iocb resources if this function
8152 * returns IOCB_TIMEDOUT.
8153 * The function waits for the iocb completion using an
8154 * non-interruptible wait.
8155 * This function will sleep while waiting for iocb completion.
8156 * So, this function should not be called from any context which
8157 * does not allow sleeping. Due to the same reason, this function
8158 * cannot be called with interrupt disabled.
8159 * This function assumes that the iocb completions occur while
8160 * this function sleep. So, this function cannot be called from
8161 * the thread which process iocb completion for this ring.
8162 * This function clears the iocb_flag of the iocb object before
8163 * issuing the iocb and the iocb completion handler sets this
8164 * flag and wakes this thread when the iocb completes.
8165 * The contents of the response iocb will be copied to prspiocbq
8166 * by the completion handler when the command completes.
8167 * This function returns IOCB_SUCCESS when success.
8168 * This function is called with no lock held.
8169 **/
dea31012005-04-17 16:05:31 -05008170int
James Smart2e0fef82007-06-17 19:56:36 -05008171lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -04008172 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -05008173 struct lpfc_iocbq *piocb,
8174 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008175 uint32_t timeout)
dea31012005-04-17 16:05:31 -05008176{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08008177 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008178 long timeleft, timeout_req = 0;
8179 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05008180 uint32_t creg_val;
James Smart2a9bf3d2010-06-07 15:24:45 -04008181 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
dea31012005-04-17 16:05:31 -05008182 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008183 * If the caller has provided a response iocbq buffer, then context2
8184 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05008185 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008186 if (prspiocbq) {
8187 if (piocb->context2)
8188 return IOCB_ERROR;
8189 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05008190 }
8191
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008192 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
8193 piocb->context_un.wait_queue = &done_q;
8194 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05008195
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05008196 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
8197 creg_val = readl(phba->HCregaddr);
8198 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
8199 writel(creg_val, phba->HCregaddr);
8200 readl(phba->HCregaddr); /* flush */
8201 }
8202
James Smart2a9bf3d2010-06-07 15:24:45 -04008203 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
8204 SLI_IOCB_RET_IOCB);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008205 if (retval == IOCB_SUCCESS) {
8206 timeout_req = timeout * HZ;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008207 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -04008208 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008209 timeout_req);
dea31012005-04-17 16:05:31 -05008210
James Smart7054a602007-04-25 09:52:34 -04008211 if (piocb->iocb_flag & LPFC_IO_WAKE) {
8212 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008213 "0331 IOCB wake signaled\n");
James Smart7054a602007-04-25 09:52:34 -04008214 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008215 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008216 "0338 IOCB wait timeout error - no "
8217 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008218 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04008219 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008220 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008221 "0330 IOCB wake NOT set, "
8222 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008223 timeout, (timeleft / jiffies));
8224 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05008225 }
James Smart2a9bf3d2010-06-07 15:24:45 -04008226 } else if (retval == IOCB_BUSY) {
8227 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8228 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
8229 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
8230 return retval;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008231 } else {
8232 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04008233 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04008234 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008235 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05008236 }
8237
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05008238 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
8239 creg_val = readl(phba->HCregaddr);
8240 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
8241 writel(creg_val, phba->HCregaddr);
8242 readl(phba->HCregaddr); /* flush */
8243 }
8244
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008245 if (prspiocbq)
8246 piocb->context2 = NULL;
8247
8248 piocb->context_un.wait_queue = NULL;
8249 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05008250 return retval;
8251}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04008252
James Smarte59058c2008-08-24 21:49:00 -04008253/**
James Smart3621a712009-04-06 18:47:14 -04008254 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -04008255 * @phba: Pointer to HBA context object.
8256 * @pmboxq: Pointer to driver mailbox object.
8257 * @timeout: Timeout in number of seconds.
8258 *
8259 * This function issues the mailbox to firmware and waits for the
8260 * mailbox command to complete. If the mailbox command is not
8261 * completed within timeout seconds, it returns MBX_TIMEOUT.
8262 * The function waits for the mailbox completion using an
8263 * interruptible wait. If the thread is woken up due to a
8264 * signal, MBX_TIMEOUT error is returned to the caller. Caller
8265 * should not free the mailbox resources, if this function returns
8266 * MBX_TIMEOUT.
8267 * This function will sleep while waiting for mailbox completion.
8268 * So, this function should not be called from any context which
8269 * does not allow sleeping. Due to the same reason, this function
8270 * cannot be called with interrupt disabled.
8271 * This function assumes that the mailbox completion occurs while
8272 * this function sleep. So, this function cannot be called from
8273 * the worker thread which processes mailbox completion.
8274 * This function is called in the context of HBA management
8275 * applications.
8276 * This function returns MBX_SUCCESS when successful.
8277 * This function is called with no lock held.
8278 **/
dea31012005-04-17 16:05:31 -05008279int
James Smart2e0fef82007-06-17 19:56:36 -05008280lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -05008281 uint32_t timeout)
8282{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08008283 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05008284 int retval;
James Smart858c9f62007-06-17 19:56:39 -05008285 unsigned long flag;
dea31012005-04-17 16:05:31 -05008286
8287 /* The caller must leave context1 empty. */
James Smart98c9ea52007-10-27 13:37:33 -04008288 if (pmboxq->context1)
James Smart2e0fef82007-06-17 19:56:36 -05008289 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05008290
James Smart495a7142008-06-14 22:52:59 -04008291 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -05008292 /* setup wake call as IOCB callback */
8293 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
8294 /* setup context field to pass wait_queue pointer to wake function */
8295 pmboxq->context1 = &done_q;
8296
dea31012005-04-17 16:05:31 -05008297 /* now issue the command */
8298 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
8299
8300 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04008301 wait_event_interruptible_timeout(done_q,
8302 pmboxq->mbox_flag & LPFC_MBX_WAKE,
8303 timeout * HZ);
8304
James Smart858c9f62007-06-17 19:56:39 -05008305 spin_lock_irqsave(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05008306 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04008307 /*
8308 * if LPFC_MBX_WAKE flag is set the mailbox is completed
8309 * else do not free the resources.
8310 */
James Smartd7c47992010-06-08 18:31:54 -04008311 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
dea31012005-04-17 16:05:31 -05008312 retval = MBX_SUCCESS;
James Smartd7c47992010-06-08 18:31:54 -04008313 lpfc_sli4_swap_str(phba, pmboxq);
8314 } else {
James Smart7054a602007-04-25 09:52:34 -04008315 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -05008316 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
8317 }
8318 spin_unlock_irqrestore(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05008319 }
8320
dea31012005-04-17 16:05:31 -05008321 return retval;
8322}
8323
James Smarte59058c2008-08-24 21:49:00 -04008324/**
James Smart3772a992009-05-22 14:50:54 -04008325 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -04008326 * @phba: Pointer to HBA context.
8327 *
James Smart3772a992009-05-22 14:50:54 -04008328 * This function is called to shutdown the driver's mailbox sub-system.
8329 * It first marks the mailbox sub-system is in a block state to prevent
8330 * the asynchronous mailbox command from issued off the pending mailbox
8331 * command queue. If the mailbox command sub-system shutdown is due to
8332 * HBA error conditions such as EEH or ERATT, this routine shall invoke
8333 * the mailbox sub-system flush routine to forcefully bring down the
8334 * mailbox sub-system. Otherwise, if it is due to normal condition (such
8335 * as with offline or HBA function reset), this routine will wait for the
8336 * outstanding mailbox command to complete before invoking the mailbox
8337 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -04008338 **/
James Smart3772a992009-05-22 14:50:54 -04008339void
8340lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
James Smartb4c02652006-07-06 15:50:43 -04008341{
James Smart3772a992009-05-22 14:50:54 -04008342 struct lpfc_sli *psli = &phba->sli;
8343 uint8_t actcmd = MBX_HEARTBEAT;
8344 unsigned long timeout;
8345
8346 spin_lock_irq(&phba->hbalock);
8347 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
8348 spin_unlock_irq(&phba->hbalock);
8349
8350 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
8351 spin_lock_irq(&phba->hbalock);
8352 if (phba->sli.mbox_active)
8353 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
8354 spin_unlock_irq(&phba->hbalock);
8355 /* Determine how long we might wait for the active mailbox
8356 * command to be gracefully completed by firmware.
8357 */
8358 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
8359 1000) + jiffies;
8360 while (phba->sli.mbox_active) {
8361 /* Check active mailbox complete status every 2ms */
8362 msleep(2);
8363 if (time_after(jiffies, timeout))
8364 /* Timeout, let the mailbox flush routine to
8365 * forcefully release active mailbox command
8366 */
8367 break;
8368 }
8369 }
8370 lpfc_sli_mbox_sys_flush(phba);
8371}
8372
8373/**
8374 * lpfc_sli_eratt_read - read sli-3 error attention events
8375 * @phba: Pointer to HBA context.
8376 *
8377 * This function is called to read the SLI3 device error attention registers
8378 * for possible error attention events. The caller must hold the hostlock
8379 * with spin_lock_irq().
8380 *
8381 * This fucntion returns 1 when there is Error Attention in the Host Attention
8382 * Register and returns 0 otherwise.
8383 **/
8384static int
8385lpfc_sli_eratt_read(struct lpfc_hba *phba)
8386{
James Smarted957682007-06-17 19:56:37 -05008387 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -04008388
James Smart3772a992009-05-22 14:50:54 -04008389 /* Read chip Host Attention (HA) register */
8390 ha_copy = readl(phba->HAregaddr);
8391 if (ha_copy & HA_ERATT) {
8392 /* Read host status register to retrieve error event */
8393 lpfc_sli_read_hs(phba);
James Smartb4c02652006-07-06 15:50:43 -04008394
James Smart3772a992009-05-22 14:50:54 -04008395 /* Check if there is a deferred error condition is active */
8396 if ((HS_FFER1 & phba->work_hs) &&
8397 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -04008398 HS_FFER6 | HS_FFER7 | HS_FFER8) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -04008399 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -04008400 /* Clear all interrupt enable conditions */
8401 writel(0, phba->HCregaddr);
8402 readl(phba->HCregaddr);
8403 }
8404
8405 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -04008406 phba->work_ha |= HA_ERATT;
8407 /* Indicate polling handles this ERATT */
8408 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04008409 return 1;
James Smartb4c02652006-07-06 15:50:43 -04008410 }
James Smart3772a992009-05-22 14:50:54 -04008411 return 0;
James Smartb4c02652006-07-06 15:50:43 -04008412}
8413
James Smarte59058c2008-08-24 21:49:00 -04008414/**
James Smartda0436e2009-05-22 14:51:39 -04008415 * lpfc_sli4_eratt_read - read sli-4 error attention events
8416 * @phba: Pointer to HBA context.
8417 *
8418 * This function is called to read the SLI4 device error attention registers
8419 * for possible error attention events. The caller must hold the hostlock
8420 * with spin_lock_irq().
8421 *
8422 * This fucntion returns 1 when there is Error Attention in the Host Attention
8423 * Register and returns 0 otherwise.
8424 **/
8425static int
8426lpfc_sli4_eratt_read(struct lpfc_hba *phba)
8427{
8428 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smart2fcee4b2010-12-15 17:57:46 -05008429 uint32_t if_type, portsmphr;
8430 struct lpfc_register portstat_reg;
James Smartda0436e2009-05-22 14:51:39 -04008431
James Smart2fcee4b2010-12-15 17:57:46 -05008432 /*
8433 * For now, use the SLI4 device internal unrecoverable error
James Smartda0436e2009-05-22 14:51:39 -04008434 * registers for error attention. This can be changed later.
8435 */
James Smart2fcee4b2010-12-15 17:57:46 -05008436 if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
8437 switch (if_type) {
8438 case LPFC_SLI_INTF_IF_TYPE_0:
8439 uerr_sta_lo = readl(phba->sli4_hba.u.if_type0.UERRLOregaddr);
8440 uerr_sta_hi = readl(phba->sli4_hba.u.if_type0.UERRHIregaddr);
8441 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
8442 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
8443 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8444 "1423 HBA Unrecoverable error: "
8445 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
8446 "ue_mask_lo_reg=0x%x, "
8447 "ue_mask_hi_reg=0x%x\n",
8448 uerr_sta_lo, uerr_sta_hi,
8449 phba->sli4_hba.ue_mask_lo,
8450 phba->sli4_hba.ue_mask_hi);
8451 phba->work_status[0] = uerr_sta_lo;
8452 phba->work_status[1] = uerr_sta_hi;
8453 phba->work_ha |= HA_ERATT;
8454 phba->hba_flag |= HBA_ERATT_HANDLED;
8455 return 1;
8456 }
8457 break;
8458 case LPFC_SLI_INTF_IF_TYPE_2:
8459 portstat_reg.word0 =
8460 readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
8461 portsmphr = readl(phba->sli4_hba.PSMPHRregaddr);
8462 if (bf_get(lpfc_sliport_status_err, &portstat_reg)) {
8463 phba->work_status[0] =
8464 readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
8465 phba->work_status[1] =
8466 readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
8467 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8468 "2885 Port Error Detected: "
8469 "port status reg 0x%x, "
8470 "port smphr reg 0x%x, "
8471 "error 1=0x%x, error 2=0x%x\n",
8472 portstat_reg.word0,
8473 portsmphr,
8474 phba->work_status[0],
8475 phba->work_status[1]);
8476 phba->work_ha |= HA_ERATT;
8477 phba->hba_flag |= HBA_ERATT_HANDLED;
8478 return 1;
8479 }
8480 break;
8481 case LPFC_SLI_INTF_IF_TYPE_1:
8482 default:
James Smarta747c9c2009-11-18 15:41:10 -05008483 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smart2fcee4b2010-12-15 17:57:46 -05008484 "2886 HBA Error Attention on unsupported "
8485 "if type %d.", if_type);
James Smarta747c9c2009-11-18 15:41:10 -05008486 return 1;
James Smartda0436e2009-05-22 14:51:39 -04008487 }
James Smart2fcee4b2010-12-15 17:57:46 -05008488
James Smartda0436e2009-05-22 14:51:39 -04008489 return 0;
8490}
8491
8492/**
James Smart3621a712009-04-06 18:47:14 -04008493 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -04008494 * @phba: Pointer to HBA context.
8495 *
James Smart3772a992009-05-22 14:50:54 -04008496 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -04008497 * error attention register bit for error attention events.
8498 *
8499 * This fucntion returns 1 when there is Error Attention in the Host Attention
8500 * Register and returns 0 otherwise.
8501 **/
8502int
8503lpfc_sli_check_eratt(struct lpfc_hba *phba)
8504{
8505 uint32_t ha_copy;
8506
8507 /* If somebody is waiting to handle an eratt, don't process it
8508 * here. The brdkill function will do this.
8509 */
8510 if (phba->link_flag & LS_IGNORE_ERATT)
8511 return 0;
8512
8513 /* Check if interrupt handler handles this ERATT */
8514 spin_lock_irq(&phba->hbalock);
8515 if (phba->hba_flag & HBA_ERATT_HANDLED) {
8516 /* Interrupt handler has handled ERATT */
8517 spin_unlock_irq(&phba->hbalock);
8518 return 0;
8519 }
8520
James Smarta257bf92009-04-06 18:48:10 -04008521 /*
8522 * If there is deferred error attention, do not check for error
8523 * attention
8524 */
8525 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8526 spin_unlock_irq(&phba->hbalock);
8527 return 0;
8528 }
8529
James Smart3772a992009-05-22 14:50:54 -04008530 /* If PCI channel is offline, don't process it */
8531 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -04008532 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04008533 return 0;
8534 }
8535
8536 switch (phba->sli_rev) {
8537 case LPFC_SLI_REV2:
8538 case LPFC_SLI_REV3:
8539 /* Read chip Host Attention (HA) register */
8540 ha_copy = lpfc_sli_eratt_read(phba);
8541 break;
James Smartda0436e2009-05-22 14:51:39 -04008542 case LPFC_SLI_REV4:
James Smart2fcee4b2010-12-15 17:57:46 -05008543 /* Read device Uncoverable Error (UERR) registers */
James Smartda0436e2009-05-22 14:51:39 -04008544 ha_copy = lpfc_sli4_eratt_read(phba);
8545 break;
James Smart3772a992009-05-22 14:50:54 -04008546 default:
8547 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8548 "0299 Invalid SLI revision (%d)\n",
8549 phba->sli_rev);
8550 ha_copy = 0;
8551 break;
James Smart93996272008-08-24 21:50:30 -04008552 }
8553 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04008554
8555 return ha_copy;
8556}
8557
8558/**
8559 * lpfc_intr_state_check - Check device state for interrupt handling
8560 * @phba: Pointer to HBA context.
8561 *
8562 * This inline routine checks whether a device or its PCI slot is in a state
8563 * that the interrupt should be handled.
8564 *
8565 * This function returns 0 if the device or the PCI slot is in a state that
8566 * interrupt should be handled, otherwise -EIO.
8567 */
8568static inline int
8569lpfc_intr_state_check(struct lpfc_hba *phba)
8570{
8571 /* If the pci channel is offline, ignore all the interrupts */
8572 if (unlikely(pci_channel_offline(phba->pcidev)))
8573 return -EIO;
8574
8575 /* Update device level interrupt statistics */
8576 phba->sli.slistat.sli_intr++;
8577
8578 /* Ignore all interrupts during initialization. */
8579 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8580 return -EIO;
8581
James Smart93996272008-08-24 21:50:30 -04008582 return 0;
8583}
8584
8585/**
James Smart3772a992009-05-22 14:50:54 -04008586 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -04008587 * @irq: Interrupt number.
8588 * @dev_id: The device context pointer.
8589 *
James Smart93996272008-08-24 21:50:30 -04008590 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008591 * service routine when device with SLI-3 interface spec is enabled with
8592 * MSI-X multi-message interrupt mode and there are slow-path events in
8593 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8594 * interrupt mode, this function is called as part of the device-level
8595 * interrupt handler. When the PCI slot is in error recovery or the HBA
8596 * is undergoing initialization, the interrupt handler will not process
8597 * the interrupt. The link attention and ELS ring attention events are
8598 * handled by the worker thread. The interrupt handler signals the worker
8599 * thread and returns for these events. This function is called without
8600 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -04008601 * structures.
8602 *
8603 * This function returns IRQ_HANDLED when interrupt is handled else it
8604 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -04008605 **/
dea31012005-04-17 16:05:31 -05008606irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008607lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -05008608{
James Smart2e0fef82007-06-17 19:56:36 -05008609 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -05008610 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05008611 uint32_t work_ha_copy;
8612 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008613 unsigned long iflag;
dea31012005-04-17 16:05:31 -05008614 uint32_t control;
8615
James Smart92d7f7b2007-06-17 19:56:38 -05008616 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -05008617 struct lpfc_vport *vport;
8618 struct lpfc_nodelist *ndlp;
8619 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -05008620 LPFC_MBOXQ_t *pmb;
8621 int rc;
8622
dea31012005-04-17 16:05:31 -05008623 /*
8624 * Get the driver's phba structure from the dev_id and
8625 * assume the HBA is not interrupting.
8626 */
James Smart93996272008-08-24 21:50:30 -04008627 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -05008628
8629 if (unlikely(!phba))
8630 return IRQ_NONE;
8631
dea31012005-04-17 16:05:31 -05008632 /*
James Smart93996272008-08-24 21:50:30 -04008633 * Stuff needs to be attented to when this function is invoked as an
8634 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008635 */
James Smart93996272008-08-24 21:50:30 -04008636 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008637 /* Check device state for handling interrupt */
8638 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008639 return IRQ_NONE;
8640 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -05008641 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart34b02dc2008-08-24 21:49:55 -04008642 ha_copy = readl(phba->HAregaddr);
James Smart93996272008-08-24 21:50:30 -04008643 /* If somebody is waiting to handle an eratt don't process it
8644 * here. The brdkill function will do this.
8645 */
8646 if (phba->link_flag & LS_IGNORE_ERATT)
8647 ha_copy &= ~HA_ERATT;
8648 /* Check the need for handling ERATT in interrupt handler */
8649 if (ha_copy & HA_ERATT) {
8650 if (phba->hba_flag & HBA_ERATT_HANDLED)
8651 /* ERATT polling has handled ERATT */
8652 ha_copy &= ~HA_ERATT;
8653 else
8654 /* Indicate interrupt handler handles ERATT */
8655 phba->hba_flag |= HBA_ERATT_HANDLED;
8656 }
James Smarta257bf92009-04-06 18:48:10 -04008657
8658 /*
8659 * If there is deferred error attention, do not check for any
8660 * interrupt.
8661 */
8662 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008663 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008664 return IRQ_NONE;
8665 }
8666
James Smart93996272008-08-24 21:50:30 -04008667 /* Clear up only attention source related to slow-path */
James Smarta747c9c2009-11-18 15:41:10 -05008668 hc_copy = readl(phba->HCregaddr);
8669 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
8670 HC_LAINT_ENA | HC_ERINT_ENA),
8671 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008672 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
8673 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05008674 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008675 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008676 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008677 } else
8678 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -05008679
dea31012005-04-17 16:05:31 -05008680 work_ha_copy = ha_copy & phba->work_ha_mask;
8681
James Smart93996272008-08-24 21:50:30 -04008682 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -05008683 if (work_ha_copy & HA_LATT) {
8684 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
8685 /*
8686 * Turn off Link Attention interrupts
8687 * until CLEAR_LA done
8688 */
James Smart5b75da22008-12-04 22:39:35 -05008689 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008690 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
8691 control = readl(phba->HCregaddr);
8692 control &= ~HC_LAINT_ENA;
8693 writel(control, phba->HCregaddr);
8694 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008695 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008696 }
8697 else
8698 work_ha_copy &= ~HA_LATT;
8699 }
8700
James Smart93996272008-08-24 21:50:30 -04008701 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -05008702 /*
8703 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8704 * the only slow ring.
8705 */
8706 status = (work_ha_copy &
8707 (HA_RXMASK << (4*LPFC_ELS_RING)));
8708 status >>= (4*LPFC_ELS_RING);
8709 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -05008710 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart858c9f62007-06-17 19:56:39 -05008711 control = readl(phba->HCregaddr);
James Smarta58cbd52007-08-02 11:09:43 -04008712
8713 lpfc_debugfs_slow_ring_trc(phba,
8714 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8715 control, status,
8716 (uint32_t)phba->sli.slistat.sli_intr);
8717
James Smart858c9f62007-06-17 19:56:39 -05008718 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -04008719 lpfc_debugfs_slow_ring_trc(phba,
8720 "ISR Disable ring:"
8721 "pwork:x%x hawork:x%x wait:x%x",
8722 phba->work_ha, work_ha_copy,
8723 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008724 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008725
James Smart858c9f62007-06-17 19:56:39 -05008726 control &=
8727 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -05008728 writel(control, phba->HCregaddr);
8729 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -05008730 }
James Smarta58cbd52007-08-02 11:09:43 -04008731 else {
8732 lpfc_debugfs_slow_ring_trc(phba,
8733 "ISR slow ring: pwork:"
8734 "x%x hawork:x%x wait:x%x",
8735 phba->work_ha, work_ha_copy,
8736 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008737 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008738 }
James Smart5b75da22008-12-04 22:39:35 -05008739 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008740 }
8741 }
James Smart5b75da22008-12-04 22:39:35 -05008742 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008743 if (work_ha_copy & HA_ERATT) {
James Smart93996272008-08-24 21:50:30 -04008744 lpfc_sli_read_hs(phba);
James Smarta257bf92009-04-06 18:48:10 -04008745 /*
8746 * Check if there is a deferred error condition
8747 * is active
8748 */
8749 if ((HS_FFER1 & phba->work_hs) &&
8750 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
James Smartdcf2a4e2010-09-29 11:18:53 -04008751 HS_FFER6 | HS_FFER7 | HS_FFER8) &
8752 phba->work_hs)) {
James Smarta257bf92009-04-06 18:48:10 -04008753 phba->hba_flag |= DEFER_ERATT;
8754 /* Clear all interrupt enable conditions */
8755 writel(0, phba->HCregaddr);
8756 readl(phba->HCregaddr);
8757 }
8758 }
8759
James Smart93996272008-08-24 21:50:30 -04008760 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -05008761 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04008762 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -04008763 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -05008764 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -05008765
8766 /* First check out the status word */
8767 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8768 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -05008769 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05008770 /*
8771 * Stray Mailbox Interrupt, mbxCommand <cmd>
8772 * mbxStatus <status>
8773 */
James Smart09372822008-01-11 01:52:54 -05008774 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -05008775 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008776 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -05008777 "Interrupt mbxCommand x%x "
8778 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04008779 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -05008780 pmbox->mbxCommand,
8781 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -05008782 /* clear mailbox attention bit */
8783 work_ha_copy &= ~HA_MBATT;
8784 } else {
James Smart97eab632008-04-07 10:16:05 -04008785 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -05008786 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -05008787 phba->last_completion_time = jiffies;
8788 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -05008789 if (pmb->mbox_cmpl) {
8790 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8791 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04008792 if (pmb->out_ext_byte_len &&
8793 pmb->context2)
8794 lpfc_sli_pcimem_bcopy(
8795 phba->mbox_ext,
8796 pmb->context2,
8797 pmb->out_ext_byte_len);
James Smart858c9f62007-06-17 19:56:39 -05008798 }
James Smart09372822008-01-11 01:52:54 -05008799 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8800 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8801
8802 lpfc_debugfs_disc_trc(vport,
8803 LPFC_DISC_TRC_MBOX_VPORT,
8804 "MBOX dflt rpi: : "
8805 "status:x%x rpi:x%x",
8806 (uint32_t)pmbox->mbxStatus,
8807 pmbox->un.varWords[0], 0);
8808
8809 if (!pmbox->mbxStatus) {
8810 mp = (struct lpfc_dmabuf *)
8811 (pmb->context1);
8812 ndlp = (struct lpfc_nodelist *)
8813 pmb->context2;
8814
8815 /* Reg_LOGIN of dflt RPI was
8816 * successful. new lets get
8817 * rid of the RPI using the
8818 * same mbox buffer.
8819 */
8820 lpfc_unreg_login(phba,
8821 vport->vpi,
8822 pmbox->un.varWords[0],
8823 pmb);
8824 pmb->mbox_cmpl =
8825 lpfc_mbx_cmpl_dflt_rpi;
8826 pmb->context1 = mp;
8827 pmb->context2 = ndlp;
8828 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -04008829 rc = lpfc_sli_issue_mbox(phba,
8830 pmb,
8831 MBX_NOWAIT);
8832 if (rc != MBX_BUSY)
8833 lpfc_printf_log(phba,
8834 KERN_ERR,
8835 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04008836 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -04008837 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -04008838 if (rc != MBX_NOT_FINISHED)
8839 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -05008840 }
8841 }
James Smart5b75da22008-12-04 22:39:35 -05008842 spin_lock_irqsave(
8843 &phba->pport->work_port_lock,
8844 iflag);
James Smart09372822008-01-11 01:52:54 -05008845 phba->pport->work_port_events &=
8846 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -05008847 spin_unlock_irqrestore(
8848 &phba->pport->work_port_lock,
8849 iflag);
James Smart09372822008-01-11 01:52:54 -05008850 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -05008851 }
James Smart97eab632008-04-07 10:16:05 -04008852 } else
James Smart5b75da22008-12-04 22:39:35 -05008853 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008854
James Smart92d7f7b2007-06-17 19:56:38 -05008855 if ((work_ha_copy & HA_MBATT) &&
8856 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -05008857send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -05008858 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -04008859 do {
8860 rc = lpfc_sli_issue_mbox(phba, NULL,
8861 MBX_NOWAIT);
8862 } while (rc == MBX_NOT_FINISHED);
8863 if (rc != MBX_SUCCESS)
8864 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8865 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -04008866 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -05008867 }
8868
James Smart5b75da22008-12-04 22:39:35 -05008869 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008870 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -05008871 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -04008872 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05008873 }
James Smart93996272008-08-24 21:50:30 -04008874 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -05008875
James Smart3772a992009-05-22 14:50:54 -04008876} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -04008877
8878/**
James Smart3772a992009-05-22 14:50:54 -04008879 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -04008880 * @irq: Interrupt number.
8881 * @dev_id: The device context pointer.
8882 *
8883 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008884 * service routine when device with SLI-3 interface spec is enabled with
8885 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8886 * ring event in the HBA. However, when the device is enabled with either
8887 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8888 * device-level interrupt handler. When the PCI slot is in error recovery
8889 * or the HBA is undergoing initialization, the interrupt handler will not
8890 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8891 * the intrrupt context. This function is called without any lock held.
8892 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008893 *
8894 * This function returns IRQ_HANDLED when interrupt is handled else it
8895 * returns IRQ_NONE.
8896 **/
8897irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008898lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008899{
8900 struct lpfc_hba *phba;
8901 uint32_t ha_copy;
8902 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008903 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -04008904
8905 /* Get the driver's phba structure from the dev_id and
8906 * assume the HBA is not interrupting.
8907 */
8908 phba = (struct lpfc_hba *) dev_id;
8909
8910 if (unlikely(!phba))
8911 return IRQ_NONE;
dea31012005-04-17 16:05:31 -05008912
8913 /*
James Smart93996272008-08-24 21:50:30 -04008914 * Stuff needs to be attented to when this function is invoked as an
8915 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008916 */
James Smart93996272008-08-24 21:50:30 -04008917 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008918 /* Check device state for handling interrupt */
8919 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008920 return IRQ_NONE;
8921 /* Need to read HA REG for FCP ring and other ring events */
8922 ha_copy = readl(phba->HAregaddr);
8923 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -05008924 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008925 /*
8926 * If there is deferred error attention, do not check for
8927 * any interrupt.
8928 */
8929 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008930 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008931 return IRQ_NONE;
8932 }
James Smart93996272008-08-24 21:50:30 -04008933 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8934 phba->HAregaddr);
8935 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008936 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008937 } else
8938 ha_copy = phba->ha_copy;
8939
8940 /*
8941 * Process all events on FCP ring. Take the optimized path for FCP IO.
8942 */
8943 ha_copy &= ~(phba->work_ha_mask);
8944
8945 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -05008946 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -05008947 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -05008948 lpfc_sli_handle_fast_ring_event(phba,
8949 &phba->sli.ring[LPFC_FCP_RING],
8950 status);
James Smarta4bc3372006-12-02 13:34:16 -05008951
8952 if (phba->cfg_multi_ring_support == 2) {
8953 /*
James Smart93996272008-08-24 21:50:30 -04008954 * Process all events on extra ring. Take the optimized path
8955 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -05008956 */
James Smart93996272008-08-24 21:50:30 -04008957 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -05008958 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -05008959 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -05008960 lpfc_sli_handle_fast_ring_event(phba,
8961 &phba->sli.ring[LPFC_EXTRA_RING],
8962 status);
8963 }
8964 }
dea31012005-04-17 16:05:31 -05008965 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04008966} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -05008967
James Smart93996272008-08-24 21:50:30 -04008968/**
James Smart3772a992009-05-22 14:50:54 -04008969 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -04008970 * @irq: Interrupt number.
8971 * @dev_id: The device context pointer.
8972 *
James Smart3772a992009-05-22 14:50:54 -04008973 * This function is the HBA device-level interrupt handler to device with
8974 * SLI-3 interface spec, called from the PCI layer when either MSI or
8975 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8976 * requires driver attention. This function invokes the slow-path interrupt
8977 * attention handling function and fast-path interrupt attention handling
8978 * function in turn to process the relevant HBA attention events. This
8979 * function is called without any lock held. It gets the hbalock to access
8980 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008981 *
8982 * This function returns IRQ_HANDLED when interrupt is handled, else it
8983 * returns IRQ_NONE.
8984 **/
8985irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008986lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008987{
8988 struct lpfc_hba *phba;
8989 irqreturn_t sp_irq_rc, fp_irq_rc;
8990 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -05008991 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -04008992
8993 /*
8994 * Get the driver's phba structure from the dev_id and
8995 * assume the HBA is not interrupting.
8996 */
8997 phba = (struct lpfc_hba *) dev_id;
8998
8999 if (unlikely(!phba))
9000 return IRQ_NONE;
9001
James Smart3772a992009-05-22 14:50:54 -04009002 /* Check device state for handling interrupt */
9003 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04009004 return IRQ_NONE;
9005
9006 spin_lock(&phba->hbalock);
9007 phba->ha_copy = readl(phba->HAregaddr);
9008 if (unlikely(!phba->ha_copy)) {
9009 spin_unlock(&phba->hbalock);
9010 return IRQ_NONE;
9011 } else if (phba->ha_copy & HA_ERATT) {
9012 if (phba->hba_flag & HBA_ERATT_HANDLED)
9013 /* ERATT polling has handled ERATT */
9014 phba->ha_copy &= ~HA_ERATT;
9015 else
9016 /* Indicate interrupt handler handles ERATT */
9017 phba->hba_flag |= HBA_ERATT_HANDLED;
9018 }
9019
James Smarta257bf92009-04-06 18:48:10 -04009020 /*
9021 * If there is deferred error attention, do not check for any interrupt.
9022 */
9023 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +02009024 spin_unlock(&phba->hbalock);
James Smarta257bf92009-04-06 18:48:10 -04009025 return IRQ_NONE;
9026 }
9027
James Smart93996272008-08-24 21:50:30 -04009028 /* Clear attention sources except link and error attentions */
James Smarta747c9c2009-11-18 15:41:10 -05009029 hc_copy = readl(phba->HCregaddr);
9030 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
9031 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
9032 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04009033 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05009034 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04009035 readl(phba->HAregaddr); /* flush */
9036 spin_unlock(&phba->hbalock);
9037
9038 /*
9039 * Invokes slow-path host attention interrupt handling as appropriate.
9040 */
9041
9042 /* status of events with mailbox and link attention */
9043 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
9044
9045 /* status of events with ELS ring */
9046 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
9047 status2 >>= (4*LPFC_ELS_RING);
9048
9049 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04009050 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04009051 else
9052 sp_irq_rc = IRQ_NONE;
9053
9054 /*
9055 * Invoke fast-path host attention interrupt handling as appropriate.
9056 */
9057
9058 /* status of events with FCP ring */
9059 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
9060 status1 >>= (4*LPFC_FCP_RING);
9061
9062 /* status of events with extra ring */
9063 if (phba->cfg_multi_ring_support == 2) {
9064 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
9065 status2 >>= (4*LPFC_EXTRA_RING);
9066 } else
9067 status2 = 0;
9068
9069 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04009070 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04009071 else
9072 fp_irq_rc = IRQ_NONE;
9073
9074 /* Return device-level interrupt handling status */
9075 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -04009076} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -04009077
9078/**
9079 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
9080 * @phba: pointer to lpfc hba data structure.
9081 *
9082 * This routine is invoked by the worker thread to process all the pending
9083 * SLI4 FCP abort XRI events.
9084 **/
9085void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
9086{
9087 struct lpfc_cq_event *cq_event;
9088
9089 /* First, declare the fcp xri abort event has been handled */
9090 spin_lock_irq(&phba->hbalock);
9091 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
9092 spin_unlock_irq(&phba->hbalock);
9093 /* Now, handle all the fcp xri abort events */
9094 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
9095 /* Get the first event from the head of the event queue */
9096 spin_lock_irq(&phba->hbalock);
9097 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
9098 cq_event, struct lpfc_cq_event, list);
9099 spin_unlock_irq(&phba->hbalock);
9100 /* Notify aborted XRI for FCP work queue */
9101 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
9102 /* Free the event processed back to the free pool */
9103 lpfc_sli4_cq_event_release(phba, cq_event);
9104 }
9105}
9106
9107/**
9108 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
9109 * @phba: pointer to lpfc hba data structure.
9110 *
9111 * This routine is invoked by the worker thread to process all the pending
9112 * SLI4 els abort xri events.
9113 **/
9114void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
9115{
9116 struct lpfc_cq_event *cq_event;
9117
9118 /* First, declare the els xri abort event has been handled */
9119 spin_lock_irq(&phba->hbalock);
9120 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
9121 spin_unlock_irq(&phba->hbalock);
9122 /* Now, handle all the els xri abort events */
9123 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
9124 /* Get the first event from the head of the event queue */
9125 spin_lock_irq(&phba->hbalock);
9126 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
9127 cq_event, struct lpfc_cq_event, list);
9128 spin_unlock_irq(&phba->hbalock);
9129 /* Notify aborted XRI for ELS work queue */
9130 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
9131 /* Free the event processed back to the free pool */
9132 lpfc_sli4_cq_event_release(phba, cq_event);
9133 }
9134}
9135
James Smart341af102010-01-26 23:07:37 -05009136/**
9137 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
9138 * @phba: pointer to lpfc hba data structure
9139 * @pIocbIn: pointer to the rspiocbq
9140 * @pIocbOut: pointer to the cmdiocbq
9141 * @wcqe: pointer to the complete wcqe
9142 *
9143 * This routine transfers the fields of a command iocbq to a response iocbq
9144 * by copying all the IOCB fields from command iocbq and transferring the
9145 * completion status information from the complete wcqe.
9146 **/
James Smart4f774512009-05-22 14:52:35 -04009147static void
James Smart341af102010-01-26 23:07:37 -05009148lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
9149 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -04009150 struct lpfc_iocbq *pIocbOut,
9151 struct lpfc_wcqe_complete *wcqe)
9152{
James Smart341af102010-01-26 23:07:37 -05009153 unsigned long iflags;
James Smart4f774512009-05-22 14:52:35 -04009154 size_t offset = offsetof(struct lpfc_iocbq, iocb);
9155
9156 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
9157 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -04009158 /* Map WCQE parameters into irspiocb parameters */
9159 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
9160 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
9161 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
9162 pIocbIn->iocb.un.fcpi.fcpi_parm =
9163 pIocbOut->iocb.un.fcpi.fcpi_parm -
9164 wcqe->total_data_placed;
9165 else
9166 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05009167 else {
James Smart4f774512009-05-22 14:52:35 -04009168 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05009169 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
9170 }
James Smart341af102010-01-26 23:07:37 -05009171
9172 /* Pick up HBA exchange busy condition */
9173 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
9174 spin_lock_irqsave(&phba->hbalock, iflags);
9175 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
9176 spin_unlock_irqrestore(&phba->hbalock, iflags);
9177 }
James Smart4f774512009-05-22 14:52:35 -04009178}
9179
9180/**
James Smart45ed1192009-10-02 15:17:02 -04009181 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
9182 * @phba: Pointer to HBA context object.
9183 * @wcqe: Pointer to work-queue completion queue entry.
9184 *
9185 * This routine handles an ELS work-queue completion event and construct
9186 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
9187 * discovery engine to handle.
9188 *
9189 * Return: Pointer to the receive IOCBQ, NULL otherwise.
9190 **/
9191static struct lpfc_iocbq *
9192lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
9193 struct lpfc_iocbq *irspiocbq)
9194{
9195 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
9196 struct lpfc_iocbq *cmdiocbq;
9197 struct lpfc_wcqe_complete *wcqe;
9198 unsigned long iflags;
9199
9200 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
9201 spin_lock_irqsave(&phba->hbalock, iflags);
9202 pring->stats.iocb_event++;
9203 /* Look up the ELS command IOCB and create pseudo response IOCB */
9204 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9205 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9206 spin_unlock_irqrestore(&phba->hbalock, iflags);
9207
9208 if (unlikely(!cmdiocbq)) {
9209 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9210 "0386 ELS complete with no corresponding "
9211 "cmdiocb: iotag (%d)\n",
9212 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9213 lpfc_sli_release_iocbq(phba, irspiocbq);
9214 return NULL;
9215 }
9216
9217 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05009218 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -04009219
9220 return irspiocbq;
9221}
9222
9223/**
James Smart04c68492009-05-22 14:52:52 -04009224 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
9225 * @phba: Pointer to HBA context object.
9226 * @cqe: Pointer to mailbox completion queue entry.
9227 *
9228 * This routine process a mailbox completion queue entry with asynchrous
9229 * event.
9230 *
9231 * Return: true if work posted to worker thread, otherwise false.
9232 **/
9233static bool
9234lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
9235{
9236 struct lpfc_cq_event *cq_event;
9237 unsigned long iflags;
9238
9239 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
9240 "0392 Async Event: word0:x%x, word1:x%x, "
9241 "word2:x%x, word3:x%x\n", mcqe->word0,
9242 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
9243
9244 /* Allocate a new internal CQ_EVENT entry */
9245 cq_event = lpfc_sli4_cq_event_alloc(phba);
9246 if (!cq_event) {
9247 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9248 "0394 Failed to allocate CQ_EVENT entry\n");
9249 return false;
9250 }
9251
9252 /* Move the CQE into an asynchronous event entry */
9253 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
9254 spin_lock_irqsave(&phba->hbalock, iflags);
9255 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
9256 /* Set the async event flag */
9257 phba->hba_flag |= ASYNC_EVENT;
9258 spin_unlock_irqrestore(&phba->hbalock, iflags);
9259
9260 return true;
9261}
9262
9263/**
9264 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
9265 * @phba: Pointer to HBA context object.
9266 * @cqe: Pointer to mailbox completion queue entry.
9267 *
9268 * This routine process a mailbox completion queue entry with mailbox
9269 * completion event.
9270 *
9271 * Return: true if work posted to worker thread, otherwise false.
9272 **/
9273static bool
9274lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
9275{
9276 uint32_t mcqe_status;
9277 MAILBOX_t *mbox, *pmbox;
9278 struct lpfc_mqe *mqe;
9279 struct lpfc_vport *vport;
9280 struct lpfc_nodelist *ndlp;
9281 struct lpfc_dmabuf *mp;
9282 unsigned long iflags;
9283 LPFC_MBOXQ_t *pmb;
9284 bool workposted = false;
9285 int rc;
9286
9287 /* If not a mailbox complete MCQE, out by checking mailbox consume */
9288 if (!bf_get(lpfc_trailer_completed, mcqe))
9289 goto out_no_mqe_complete;
9290
9291 /* Get the reference to the active mbox command */
9292 spin_lock_irqsave(&phba->hbalock, iflags);
9293 pmb = phba->sli.mbox_active;
9294 if (unlikely(!pmb)) {
9295 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
9296 "1832 No pending MBOX command to handle\n");
9297 spin_unlock_irqrestore(&phba->hbalock, iflags);
9298 goto out_no_mqe_complete;
9299 }
9300 spin_unlock_irqrestore(&phba->hbalock, iflags);
9301 mqe = &pmb->u.mqe;
9302 pmbox = (MAILBOX_t *)&pmb->u.mqe;
9303 mbox = phba->mbox;
9304 vport = pmb->vport;
9305
9306 /* Reset heartbeat timer */
9307 phba->last_completion_time = jiffies;
9308 del_timer(&phba->sli.mbox_tmo);
9309
9310 /* Move mbox data to caller's mailbox region, do endian swapping */
9311 if (pmb->mbox_cmpl && mbox)
9312 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
9313 /* Set the mailbox status with SLI4 range 0x4000 */
9314 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
9315 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
9316 bf_set(lpfc_mqe_status, mqe,
9317 (LPFC_MBX_ERROR_RANGE | mcqe_status));
9318
9319 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
9320 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
9321 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
9322 "MBOX dflt rpi: status:x%x rpi:x%x",
9323 mcqe_status,
9324 pmbox->un.varWords[0], 0);
9325 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
9326 mp = (struct lpfc_dmabuf *)(pmb->context1);
9327 ndlp = (struct lpfc_nodelist *)pmb->context2;
9328 /* Reg_LOGIN of dflt RPI was successful. Now lets get
9329 * RID of the PPI using the same mbox buffer.
9330 */
9331 lpfc_unreg_login(phba, vport->vpi,
9332 pmbox->un.varWords[0], pmb);
9333 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
9334 pmb->context1 = mp;
9335 pmb->context2 = ndlp;
9336 pmb->vport = vport;
9337 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
9338 if (rc != MBX_BUSY)
9339 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
9340 LOG_SLI, "0385 rc should "
9341 "have been MBX_BUSY\n");
9342 if (rc != MBX_NOT_FINISHED)
9343 goto send_current_mbox;
9344 }
9345 }
9346 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
9347 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
9348 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
9349
9350 /* There is mailbox completion work to do */
9351 spin_lock_irqsave(&phba->hbalock, iflags);
9352 __lpfc_mbox_cmpl_put(phba, pmb);
9353 phba->work_ha |= HA_MBATT;
9354 spin_unlock_irqrestore(&phba->hbalock, iflags);
9355 workposted = true;
9356
9357send_current_mbox:
9358 spin_lock_irqsave(&phba->hbalock, iflags);
9359 /* Release the mailbox command posting token */
9360 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
9361 /* Setting active mailbox pointer need to be in sync to flag clear */
9362 phba->sli.mbox_active = NULL;
9363 spin_unlock_irqrestore(&phba->hbalock, iflags);
9364 /* Wake up worker thread to post the next pending mailbox command */
9365 lpfc_worker_wake_up(phba);
9366out_no_mqe_complete:
9367 if (bf_get(lpfc_trailer_consumed, mcqe))
9368 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
9369 return workposted;
9370}
9371
9372/**
9373 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
9374 * @phba: Pointer to HBA context object.
9375 * @cqe: Pointer to mailbox completion queue entry.
9376 *
9377 * This routine process a mailbox completion queue entry, it invokes the
9378 * proper mailbox complete handling or asynchrous event handling routine
9379 * according to the MCQE's async bit.
9380 *
9381 * Return: true if work posted to worker thread, otherwise false.
9382 **/
9383static bool
9384lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
9385{
9386 struct lpfc_mcqe mcqe;
9387 bool workposted;
9388
9389 /* Copy the mailbox MCQE and convert endian order as needed */
9390 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
9391
9392 /* Invoke the proper event handling routine */
9393 if (!bf_get(lpfc_trailer_async, &mcqe))
9394 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
9395 else
9396 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
9397 return workposted;
9398}
9399
9400/**
James Smart4f774512009-05-22 14:52:35 -04009401 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
9402 * @phba: Pointer to HBA context object.
9403 * @wcqe: Pointer to work-queue completion queue entry.
9404 *
9405 * This routine handles an ELS work-queue completion event.
9406 *
9407 * Return: true if work posted to worker thread, otherwise false.
9408 **/
9409static bool
9410lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
9411 struct lpfc_wcqe_complete *wcqe)
9412{
James Smart4f774512009-05-22 14:52:35 -04009413 struct lpfc_iocbq *irspiocbq;
9414 unsigned long iflags;
James Smart2a9bf3d2010-06-07 15:24:45 -04009415 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
James Smart4f774512009-05-22 14:52:35 -04009416
James Smart45ed1192009-10-02 15:17:02 -04009417 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -04009418 irspiocbq = lpfc_sli_get_iocbq(phba);
9419 if (!irspiocbq) {
9420 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2a9bf3d2010-06-07 15:24:45 -04009421 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
9422 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
9423 pring->txq_cnt, phba->iocb_cnt,
9424 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
9425 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
James Smart45ed1192009-10-02 15:17:02 -04009426 return false;
James Smart4f774512009-05-22 14:52:35 -04009427 }
James Smart4f774512009-05-22 14:52:35 -04009428
James Smart45ed1192009-10-02 15:17:02 -04009429 /* Save off the slow-path queue event for work thread to process */
9430 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -04009431 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -04009432 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04009433 &phba->sli4_hba.sp_queue_event);
9434 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -04009435 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -04009436
James Smart45ed1192009-10-02 15:17:02 -04009437 return true;
James Smart4f774512009-05-22 14:52:35 -04009438}
9439
9440/**
9441 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
9442 * @phba: Pointer to HBA context object.
9443 * @wcqe: Pointer to work-queue completion queue entry.
9444 *
9445 * This routine handles slow-path WQ entry comsumed event by invoking the
9446 * proper WQ release routine to the slow-path WQ.
9447 **/
9448static void
9449lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
9450 struct lpfc_wcqe_release *wcqe)
9451{
9452 /* Check for the slow-path ELS work queue */
9453 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
9454 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
9455 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9456 else
9457 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9458 "2579 Slow-path wqe consume event carries "
9459 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
9460 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
9461 phba->sli4_hba.els_wq->queue_id);
9462}
9463
9464/**
9465 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
9466 * @phba: Pointer to HBA context object.
9467 * @cq: Pointer to a WQ completion queue.
9468 * @wcqe: Pointer to work-queue completion queue entry.
9469 *
9470 * This routine handles an XRI abort event.
9471 *
9472 * Return: true if work posted to worker thread, otherwise false.
9473 **/
9474static bool
9475lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
9476 struct lpfc_queue *cq,
9477 struct sli4_wcqe_xri_aborted *wcqe)
9478{
9479 bool workposted = false;
9480 struct lpfc_cq_event *cq_event;
9481 unsigned long iflags;
9482
9483 /* Allocate a new internal CQ_EVENT entry */
9484 cq_event = lpfc_sli4_cq_event_alloc(phba);
9485 if (!cq_event) {
9486 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9487 "0602 Failed to allocate CQ_EVENT entry\n");
9488 return false;
9489 }
9490
9491 /* Move the CQE into the proper xri abort event list */
9492 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
9493 switch (cq->subtype) {
9494 case LPFC_FCP:
9495 spin_lock_irqsave(&phba->hbalock, iflags);
9496 list_add_tail(&cq_event->list,
9497 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
9498 /* Set the fcp xri abort event flag */
9499 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
9500 spin_unlock_irqrestore(&phba->hbalock, iflags);
9501 workposted = true;
9502 break;
9503 case LPFC_ELS:
9504 spin_lock_irqsave(&phba->hbalock, iflags);
9505 list_add_tail(&cq_event->list,
9506 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
9507 /* Set the els xri abort event flag */
9508 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
9509 spin_unlock_irqrestore(&phba->hbalock, iflags);
9510 workposted = true;
9511 break;
9512 default:
9513 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9514 "0603 Invalid work queue CQE subtype (x%x)\n",
9515 cq->subtype);
9516 workposted = false;
9517 break;
9518 }
9519 return workposted;
9520}
9521
9522/**
James Smart4d9ab992009-10-02 15:16:39 -04009523 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -04009524 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -04009525 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04009526 *
James Smart4d9ab992009-10-02 15:16:39 -04009527 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04009528 *
9529 * Return: true if work posted to worker thread, otherwise false.
9530 **/
9531static bool
James Smart4d9ab992009-10-02 15:16:39 -04009532lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
9533{
9534 bool workposted = false;
9535 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
9536 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
9537 struct hbq_dmabuf *dma_buf;
9538 uint32_t status;
9539 unsigned long iflags;
9540
James Smart4d9ab992009-10-02 15:16:39 -04009541 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
9542 goto out;
9543
9544 status = bf_get(lpfc_rcqe_status, rcqe);
9545 switch (status) {
9546 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
9547 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9548 "2537 Receive Frame Truncated!!\n");
9549 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -05009550 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -04009551 spin_lock_irqsave(&phba->hbalock, iflags);
9552 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
9553 if (!dma_buf) {
9554 spin_unlock_irqrestore(&phba->hbalock, iflags);
9555 goto out;
9556 }
9557 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
9558 /* save off the frame for the word thread to process */
9559 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04009560 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -04009561 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -04009562 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -04009563 spin_unlock_irqrestore(&phba->hbalock, iflags);
9564 workposted = true;
9565 break;
9566 case FC_STATUS_INSUFF_BUF_NEED_BUF:
9567 case FC_STATUS_INSUFF_BUF_FRM_DISC:
9568 /* Post more buffers if possible */
9569 spin_lock_irqsave(&phba->hbalock, iflags);
9570 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
9571 spin_unlock_irqrestore(&phba->hbalock, iflags);
9572 workposted = true;
9573 break;
9574 }
9575out:
9576 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -04009577}
9578
9579/**
9580 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9581 * @phba: Pointer to HBA context object.
9582 * @cq: Pointer to the completion queue.
9583 * @wcqe: Pointer to a completion queue entry.
9584 *
9585 * This routine process a slow-path work-queue or recieve queue completion queue
9586 * entry.
9587 *
9588 * Return: true if work posted to worker thread, otherwise false.
9589 **/
9590static bool
9591lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -04009592 struct lpfc_cqe *cqe)
9593{
James Smart45ed1192009-10-02 15:17:02 -04009594 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -04009595 bool workposted = false;
9596
9597 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -04009598 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -04009599
9600 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -04009601 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -04009602 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -04009603 /* Process the WQ/RQ complete event */
James Smartbc739052010-08-04 16:11:18 -04009604 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009605 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009606 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009607 break;
9608 case CQE_CODE_RELEASE_WQE:
9609 /* Process the WQ release event */
9610 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009611 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009612 break;
9613 case CQE_CODE_XRI_ABORTED:
9614 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -04009615 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009616 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -04009617 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009618 break;
James Smart4d9ab992009-10-02 15:16:39 -04009619 case CQE_CODE_RECEIVE:
9620 /* Process the RQ event */
James Smartbc739052010-08-04 16:11:18 -04009621 phba->last_completion_time = jiffies;
James Smart4d9ab992009-10-02 15:16:39 -04009622 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009623 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -04009624 break;
James Smart4f774512009-05-22 14:52:35 -04009625 default:
9626 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9627 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -04009628 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -04009629 break;
9630 }
9631 return workposted;
9632}
9633
9634/**
James Smart4f774512009-05-22 14:52:35 -04009635 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9636 * @phba: Pointer to HBA context object.
9637 * @eqe: Pointer to fast-path event queue entry.
9638 *
9639 * This routine process a event queue entry from the slow-path event queue.
9640 * It will check the MajorCode and MinorCode to determine this is for a
9641 * completion event on a completion queue, if not, an error shall be logged
9642 * and just return. Otherwise, it will get to the corresponding completion
9643 * queue and process all the entries on that completion queue, rearm the
9644 * completion queue, and then return.
9645 *
9646 **/
9647static void
9648lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
9649{
9650 struct lpfc_queue *cq = NULL, *childq, *speq;
9651 struct lpfc_cqe *cqe;
9652 bool workposted = false;
9653 int ecount = 0;
9654 uint16_t cqid;
9655
James Smartcb5172e2010-03-15 11:25:07 -04009656 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
James Smart4f774512009-05-22 14:52:35 -04009657 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9658 "0359 Not a valid slow-path completion "
9659 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -04009660 bf_get_le32(lpfc_eqe_major_code, eqe),
9661 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -04009662 return;
9663 }
9664
9665 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -04009666 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -04009667
9668 /* Search for completion queue pointer matching this cqid */
9669 speq = phba->sli4_hba.sp_eq;
9670 list_for_each_entry(childq, &speq->child_list, list) {
9671 if (childq->queue_id == cqid) {
9672 cq = childq;
9673 break;
9674 }
9675 }
9676 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -04009677 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9678 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9679 "0365 Slow-path CQ identifier "
9680 "(%d) does not exist\n", cqid);
James Smart4f774512009-05-22 14:52:35 -04009681 return;
9682 }
9683
9684 /* Process all the entries to the CQ */
9685 switch (cq->type) {
9686 case LPFC_MCQ:
9687 while ((cqe = lpfc_sli4_cq_get(cq))) {
9688 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
9689 if (!(++ecount % LPFC_GET_QE_REL_INT))
9690 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9691 }
9692 break;
9693 case LPFC_WCQ:
9694 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart4d9ab992009-10-02 15:16:39 -04009695 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
James Smart4f774512009-05-22 14:52:35 -04009696 if (!(++ecount % LPFC_GET_QE_REL_INT))
9697 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9698 }
9699 break;
9700 default:
9701 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9702 "0370 Invalid completion queue type (%d)\n",
9703 cq->type);
9704 return;
9705 }
9706
9707 /* Catch the no cq entry condition, log an error */
9708 if (unlikely(ecount == 0))
9709 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9710 "0371 No entry from the CQ: identifier "
9711 "(x%x), type (%d)\n", cq->queue_id, cq->type);
9712
9713 /* In any case, flash and re-arm the RCQ */
9714 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9715
9716 /* wake up worker thread if there are works to be done */
9717 if (workposted)
9718 lpfc_worker_wake_up(phba);
9719}
9720
9721/**
9722 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9723 * @eqe: Pointer to fast-path completion queue entry.
9724 *
9725 * This routine process a fast-path work queue completion entry from fast-path
9726 * event queue for FCP command response completion.
9727 **/
9728static void
9729lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9730 struct lpfc_wcqe_complete *wcqe)
9731{
9732 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9733 struct lpfc_iocbq *cmdiocbq;
9734 struct lpfc_iocbq irspiocbq;
9735 unsigned long iflags;
9736
9737 spin_lock_irqsave(&phba->hbalock, iflags);
9738 pring->stats.iocb_event++;
9739 spin_unlock_irqrestore(&phba->hbalock, iflags);
9740
9741 /* Check for response status */
9742 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9743 /* If resource errors reported from HBA, reduce queue
9744 * depth of the SCSI device.
9745 */
9746 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9747 IOSTAT_LOCAL_REJECT) &&
9748 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9749 phba->lpfc_rampdown_queue_depth(phba);
9750 }
9751 /* Log the error status */
9752 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9753 "0373 FCP complete error: status=x%x, "
9754 "hw_status=x%x, total_data_specified=%d, "
9755 "parameter=x%x, word3=x%x\n",
9756 bf_get(lpfc_wcqe_c_status, wcqe),
9757 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9758 wcqe->total_data_placed, wcqe->parameter,
9759 wcqe->word3);
9760 }
9761
9762 /* Look up the FCP command IOCB and create pseudo response IOCB */
9763 spin_lock_irqsave(&phba->hbalock, iflags);
9764 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9765 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9766 spin_unlock_irqrestore(&phba->hbalock, iflags);
9767 if (unlikely(!cmdiocbq)) {
9768 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9769 "0374 FCP complete with no corresponding "
9770 "cmdiocb: iotag (%d)\n",
9771 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9772 return;
9773 }
9774 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9775 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9776 "0375 FCP cmdiocb not callback function "
9777 "iotag: (%d)\n",
9778 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9779 return;
9780 }
9781
9782 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05009783 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -04009784
James Smart0f65ff62010-02-26 14:14:23 -05009785 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
9786 spin_lock_irqsave(&phba->hbalock, iflags);
9787 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
9788 spin_unlock_irqrestore(&phba->hbalock, iflags);
9789 }
9790
James Smart4f774512009-05-22 14:52:35 -04009791 /* Pass the cmd_iocb and the rsp state to the upper layer */
9792 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9793}
9794
9795/**
9796 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9797 * @phba: Pointer to HBA context object.
9798 * @cq: Pointer to completion queue.
9799 * @wcqe: Pointer to work-queue completion queue entry.
9800 *
9801 * This routine handles an fast-path WQ entry comsumed event by invoking the
9802 * proper WQ release routine to the slow-path WQ.
9803 **/
9804static void
9805lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9806 struct lpfc_wcqe_release *wcqe)
9807{
9808 struct lpfc_queue *childwq;
9809 bool wqid_matched = false;
9810 uint16_t fcp_wqid;
9811
9812 /* Check for fast-path FCP work queue release */
9813 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9814 list_for_each_entry(childwq, &cq->child_list, list) {
9815 if (childwq->queue_id == fcp_wqid) {
9816 lpfc_sli4_wq_release(childwq,
9817 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9818 wqid_matched = true;
9819 break;
9820 }
9821 }
9822 /* Report warning log message if no match found */
9823 if (wqid_matched != true)
9824 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9825 "2580 Fast-path wqe consume event carries "
9826 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9827}
9828
9829/**
9830 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9831 * @cq: Pointer to the completion queue.
9832 * @eqe: Pointer to fast-path completion queue entry.
9833 *
9834 * This routine process a fast-path work queue completion entry from fast-path
9835 * event queue for FCP command response completion.
9836 **/
9837static int
9838lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9839 struct lpfc_cqe *cqe)
9840{
9841 struct lpfc_wcqe_release wcqe;
9842 bool workposted = false;
9843
9844 /* Copy the work queue CQE and convert endian order if needed */
9845 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9846
9847 /* Check and process for different type of WCQE and dispatch */
9848 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9849 case CQE_CODE_COMPL_WQE:
9850 /* Process the WQ complete event */
James Smart98fc5dd2010-06-07 15:24:29 -04009851 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009852 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9853 (struct lpfc_wcqe_complete *)&wcqe);
9854 break;
9855 case CQE_CODE_RELEASE_WQE:
9856 /* Process the WQ release event */
9857 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9858 (struct lpfc_wcqe_release *)&wcqe);
9859 break;
9860 case CQE_CODE_XRI_ABORTED:
9861 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -04009862 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009863 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9864 (struct sli4_wcqe_xri_aborted *)&wcqe);
9865 break;
9866 default:
9867 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9868 "0144 Not a valid WCQE code: x%x\n",
9869 bf_get(lpfc_wcqe_c_code, &wcqe));
9870 break;
9871 }
9872 return workposted;
9873}
9874
9875/**
9876 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9877 * @phba: Pointer to HBA context object.
9878 * @eqe: Pointer to fast-path event queue entry.
9879 *
9880 * This routine process a event queue entry from the fast-path event queue.
9881 * It will check the MajorCode and MinorCode to determine this is for a
9882 * completion event on a completion queue, if not, an error shall be logged
9883 * and just return. Otherwise, it will get to the corresponding completion
9884 * queue and process all the entries on the completion queue, rearm the
9885 * completion queue, and then return.
9886 **/
9887static void
9888lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9889 uint32_t fcp_cqidx)
9890{
9891 struct lpfc_queue *cq;
9892 struct lpfc_cqe *cqe;
9893 bool workposted = false;
9894 uint16_t cqid;
9895 int ecount = 0;
9896
James Smartcb5172e2010-03-15 11:25:07 -04009897 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
James Smart4f774512009-05-22 14:52:35 -04009898 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9899 "0366 Not a valid fast-path completion "
9900 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -04009901 bf_get_le32(lpfc_eqe_major_code, eqe),
9902 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -04009903 return;
9904 }
9905
9906 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9907 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -04009908 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9909 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9910 "0367 Fast-path completion queue "
9911 "does not exist\n");
James Smart4f774512009-05-22 14:52:35 -04009912 return;
9913 }
9914
9915 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -04009916 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -04009917 if (unlikely(cqid != cq->queue_id)) {
9918 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9919 "0368 Miss-matched fast-path completion "
9920 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9921 cqid, cq->queue_id);
9922 return;
9923 }
9924
9925 /* Process all the entries to the CQ */
9926 while ((cqe = lpfc_sli4_cq_get(cq))) {
9927 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9928 if (!(++ecount % LPFC_GET_QE_REL_INT))
9929 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9930 }
9931
9932 /* Catch the no cq entry condition */
9933 if (unlikely(ecount == 0))
9934 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9935 "0369 No entry from fast-path completion "
9936 "queue fcpcqid=%d\n", cq->queue_id);
9937
9938 /* In any case, flash and re-arm the CQ */
9939 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9940
9941 /* wake up worker thread if there are works to be done */
9942 if (workposted)
9943 lpfc_worker_wake_up(phba);
9944}
9945
9946static void
9947lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9948{
9949 struct lpfc_eqe *eqe;
9950
9951 /* walk all the EQ entries and drop on the floor */
9952 while ((eqe = lpfc_sli4_eq_get(eq)))
9953 ;
9954
9955 /* Clear and re-arm the EQ */
9956 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9957}
9958
9959/**
9960 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9961 * @irq: Interrupt number.
9962 * @dev_id: The device context pointer.
9963 *
9964 * This function is directly called from the PCI layer as an interrupt
9965 * service routine when device with SLI-4 interface spec is enabled with
9966 * MSI-X multi-message interrupt mode and there are slow-path events in
9967 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9968 * interrupt mode, this function is called as part of the device-level
9969 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9970 * undergoing initialization, the interrupt handler will not process the
9971 * interrupt. The link attention and ELS ring attention events are handled
9972 * by the worker thread. The interrupt handler signals the worker thread
9973 * and returns for these events. This function is called without any lock
9974 * held. It gets the hbalock to access and update SLI data structures.
9975 *
9976 * This function returns IRQ_HANDLED when interrupt is handled else it
9977 * returns IRQ_NONE.
9978 **/
9979irqreturn_t
9980lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9981{
9982 struct lpfc_hba *phba;
9983 struct lpfc_queue *speq;
9984 struct lpfc_eqe *eqe;
9985 unsigned long iflag;
9986 int ecount = 0;
9987
9988 /*
9989 * Get the driver's phba structure from the dev_id
9990 */
9991 phba = (struct lpfc_hba *)dev_id;
9992
9993 if (unlikely(!phba))
9994 return IRQ_NONE;
9995
9996 /* Get to the EQ struct associated with this vector */
9997 speq = phba->sli4_hba.sp_eq;
9998
9999 /* Check device state for handling interrupt */
10000 if (unlikely(lpfc_intr_state_check(phba))) {
10001 /* Check again for link_state with lock held */
10002 spin_lock_irqsave(&phba->hbalock, iflag);
10003 if (phba->link_state < LPFC_LINK_DOWN)
10004 /* Flush, clear interrupt, and rearm the EQ */
10005 lpfc_sli4_eq_flush(phba, speq);
10006 spin_unlock_irqrestore(&phba->hbalock, iflag);
10007 return IRQ_NONE;
10008 }
10009
10010 /*
10011 * Process all the event on FCP slow-path EQ
10012 */
10013 while ((eqe = lpfc_sli4_eq_get(speq))) {
10014 lpfc_sli4_sp_handle_eqe(phba, eqe);
10015 if (!(++ecount % LPFC_GET_QE_REL_INT))
10016 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
10017 }
10018
10019 /* Always clear and re-arm the slow-path EQ */
10020 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
10021
10022 /* Catch the no cq entry condition */
10023 if (unlikely(ecount == 0)) {
10024 if (phba->intr_type == MSIX)
10025 /* MSI-X treated interrupt served as no EQ share INT */
10026 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10027 "0357 MSI-X interrupt with no EQE\n");
10028 else
10029 /* Non MSI-X treated on interrupt as EQ share INT */
10030 return IRQ_NONE;
10031 }
10032
10033 return IRQ_HANDLED;
10034} /* lpfc_sli4_sp_intr_handler */
10035
10036/**
10037 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
10038 * @irq: Interrupt number.
10039 * @dev_id: The device context pointer.
10040 *
10041 * This function is directly called from the PCI layer as an interrupt
10042 * service routine when device with SLI-4 interface spec is enabled with
10043 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10044 * ring event in the HBA. However, when the device is enabled with either
10045 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10046 * device-level interrupt handler. When the PCI slot is in error recovery
10047 * or the HBA is undergoing initialization, the interrupt handler will not
10048 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10049 * the intrrupt context. This function is called without any lock held.
10050 * It gets the hbalock to access and update SLI data structures. Note that,
10051 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
10052 * equal to that of FCP CQ index.
10053 *
10054 * This function returns IRQ_HANDLED when interrupt is handled else it
10055 * returns IRQ_NONE.
10056 **/
10057irqreturn_t
10058lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
10059{
10060 struct lpfc_hba *phba;
10061 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
10062 struct lpfc_queue *fpeq;
10063 struct lpfc_eqe *eqe;
10064 unsigned long iflag;
10065 int ecount = 0;
10066 uint32_t fcp_eqidx;
10067
10068 /* Get the driver's phba structure from the dev_id */
10069 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
10070 phba = fcp_eq_hdl->phba;
10071 fcp_eqidx = fcp_eq_hdl->idx;
10072
10073 if (unlikely(!phba))
10074 return IRQ_NONE;
10075
10076 /* Get to the EQ struct associated with this vector */
10077 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
10078
10079 /* Check device state for handling interrupt */
10080 if (unlikely(lpfc_intr_state_check(phba))) {
10081 /* Check again for link_state with lock held */
10082 spin_lock_irqsave(&phba->hbalock, iflag);
10083 if (phba->link_state < LPFC_LINK_DOWN)
10084 /* Flush, clear interrupt, and rearm the EQ */
10085 lpfc_sli4_eq_flush(phba, fpeq);
10086 spin_unlock_irqrestore(&phba->hbalock, iflag);
10087 return IRQ_NONE;
10088 }
10089
10090 /*
10091 * Process all the event on FCP fast-path EQ
10092 */
10093 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
10094 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
10095 if (!(++ecount % LPFC_GET_QE_REL_INT))
10096 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
10097 }
10098
10099 /* Always clear and re-arm the fast-path EQ */
10100 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
10101
10102 if (unlikely(ecount == 0)) {
10103 if (phba->intr_type == MSIX)
10104 /* MSI-X treated interrupt served as no EQ share INT */
10105 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
10106 "0358 MSI-X interrupt with no EQE\n");
10107 else
10108 /* Non MSI-X treated on interrupt as EQ share INT */
10109 return IRQ_NONE;
10110 }
10111
10112 return IRQ_HANDLED;
10113} /* lpfc_sli4_fp_intr_handler */
10114
10115/**
10116 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
10117 * @irq: Interrupt number.
10118 * @dev_id: The device context pointer.
10119 *
10120 * This function is the device-level interrupt handler to device with SLI-4
10121 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
10122 * interrupt mode is enabled and there is an event in the HBA which requires
10123 * driver attention. This function invokes the slow-path interrupt attention
10124 * handling function and fast-path interrupt attention handling function in
10125 * turn to process the relevant HBA attention events. This function is called
10126 * without any lock held. It gets the hbalock to access and update SLI data
10127 * structures.
10128 *
10129 * This function returns IRQ_HANDLED when interrupt is handled, else it
10130 * returns IRQ_NONE.
10131 **/
10132irqreturn_t
10133lpfc_sli4_intr_handler(int irq, void *dev_id)
10134{
10135 struct lpfc_hba *phba;
10136 irqreturn_t sp_irq_rc, fp_irq_rc;
10137 bool fp_handled = false;
10138 uint32_t fcp_eqidx;
10139
10140 /* Get the driver's phba structure from the dev_id */
10141 phba = (struct lpfc_hba *)dev_id;
10142
10143 if (unlikely(!phba))
10144 return IRQ_NONE;
10145
10146 /*
10147 * Invokes slow-path host attention interrupt handling as appropriate.
10148 */
10149 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
10150
10151 /*
10152 * Invoke fast-path host attention interrupt handling as appropriate.
10153 */
10154 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
10155 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
10156 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
10157 if (fp_irq_rc == IRQ_HANDLED)
10158 fp_handled |= true;
10159 }
10160
10161 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
10162} /* lpfc_sli4_intr_handler */
10163
10164/**
10165 * lpfc_sli4_queue_free - free a queue structure and associated memory
10166 * @queue: The queue structure to free.
10167 *
Uwe Kleine-Königb5950762010-11-01 15:38:34 -040010168 * This function frees a queue structure and the DMAable memory used for
James Smart4f774512009-05-22 14:52:35 -040010169 * the host resident queue. This function must be called after destroying the
10170 * queue on the HBA.
10171 **/
10172void
10173lpfc_sli4_queue_free(struct lpfc_queue *queue)
10174{
10175 struct lpfc_dmabuf *dmabuf;
10176
10177 if (!queue)
10178 return;
10179
10180 while (!list_empty(&queue->page_list)) {
10181 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
10182 list);
James Smart49198b32010-04-06 15:04:33 -040010183 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
James Smart4f774512009-05-22 14:52:35 -040010184 dmabuf->virt, dmabuf->phys);
10185 kfree(dmabuf);
10186 }
10187 kfree(queue);
10188 return;
10189}
10190
10191/**
10192 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
10193 * @phba: The HBA that this queue is being created on.
10194 * @entry_size: The size of each queue entry for this queue.
10195 * @entry count: The number of entries that this queue will handle.
10196 *
10197 * This function allocates a queue structure and the DMAable memory used for
10198 * the host resident queue. This function must be called before creating the
10199 * queue on the HBA.
10200 **/
10201struct lpfc_queue *
10202lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
10203 uint32_t entry_count)
10204{
10205 struct lpfc_queue *queue;
10206 struct lpfc_dmabuf *dmabuf;
10207 int x, total_qe_count;
10208 void *dma_pointer;
James Smartcb5172e2010-03-15 11:25:07 -040010209 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart4f774512009-05-22 14:52:35 -040010210
James Smartcb5172e2010-03-15 11:25:07 -040010211 if (!phba->sli4_hba.pc_sli4_params.supported)
10212 hw_page_size = SLI4_PAGE_SIZE;
10213
James Smart4f774512009-05-22 14:52:35 -040010214 queue = kzalloc(sizeof(struct lpfc_queue) +
10215 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
10216 if (!queue)
10217 return NULL;
James Smartcb5172e2010-03-15 11:25:07 -040010218 queue->page_count = (ALIGN(entry_size * entry_count,
10219 hw_page_size))/hw_page_size;
James Smart4f774512009-05-22 14:52:35 -040010220 INIT_LIST_HEAD(&queue->list);
10221 INIT_LIST_HEAD(&queue->page_list);
10222 INIT_LIST_HEAD(&queue->child_list);
10223 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
10224 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
10225 if (!dmabuf)
10226 goto out_fail;
10227 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
James Smartcb5172e2010-03-15 11:25:07 -040010228 hw_page_size, &dmabuf->phys,
James Smart4f774512009-05-22 14:52:35 -040010229 GFP_KERNEL);
10230 if (!dmabuf->virt) {
10231 kfree(dmabuf);
10232 goto out_fail;
10233 }
James Smartcb5172e2010-03-15 11:25:07 -040010234 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010235 dmabuf->buffer_tag = x;
10236 list_add_tail(&dmabuf->list, &queue->page_list);
10237 /* initialize queue's entry array */
10238 dma_pointer = dmabuf->virt;
10239 for (; total_qe_count < entry_count &&
James Smartcb5172e2010-03-15 11:25:07 -040010240 dma_pointer < (hw_page_size + dmabuf->virt);
James Smart4f774512009-05-22 14:52:35 -040010241 total_qe_count++, dma_pointer += entry_size) {
10242 queue->qe[total_qe_count].address = dma_pointer;
10243 }
10244 }
10245 queue->entry_size = entry_size;
10246 queue->entry_count = entry_count;
10247 queue->phba = phba;
10248
10249 return queue;
10250out_fail:
10251 lpfc_sli4_queue_free(queue);
10252 return NULL;
10253}
10254
10255/**
10256 * lpfc_eq_create - Create an Event Queue on the HBA
10257 * @phba: HBA structure that indicates port to create a queue on.
10258 * @eq: The queue structure to use to create the event queue.
10259 * @imax: The maximum interrupt per second limit.
10260 *
10261 * This function creates an event queue, as detailed in @eq, on a port,
10262 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
10263 *
10264 * The @phba struct is used to send mailbox command to HBA. The @eq struct
10265 * is used to get the entry count and entry size that are necessary to
10266 * determine the number of pages to allocate and use for this queue. This
10267 * function will send the EQ_CREATE mailbox command to the HBA to setup the
10268 * event queue. This function is asynchronous and will wait for the mailbox
10269 * command to finish before continuing.
10270 *
10271 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040010272 * memory this function will return -ENOMEM. If the queue create mailbox command
10273 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040010274 **/
10275uint32_t
10276lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
10277{
10278 struct lpfc_mbx_eq_create *eq_create;
10279 LPFC_MBOXQ_t *mbox;
10280 int rc, length, status = 0;
10281 struct lpfc_dmabuf *dmabuf;
10282 uint32_t shdr_status, shdr_add_status;
10283 union lpfc_sli4_cfg_shdr *shdr;
10284 uint16_t dmult;
James Smart49198b32010-04-06 15:04:33 -040010285 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10286
10287 if (!phba->sli4_hba.pc_sli4_params.supported)
10288 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040010289
10290 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10291 if (!mbox)
10292 return -ENOMEM;
10293 length = (sizeof(struct lpfc_mbx_eq_create) -
10294 sizeof(struct lpfc_sli4_cfg_mhdr));
10295 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10296 LPFC_MBOX_OPCODE_EQ_CREATE,
10297 length, LPFC_SLI4_MBX_EMBED);
10298 eq_create = &mbox->u.mqe.un.eq_create;
10299 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
10300 eq->page_count);
10301 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
10302 LPFC_EQE_SIZE);
10303 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
10304 /* Calculate delay multiper from maximum interrupt per second */
10305 dmult = LPFC_DMULT_CONST/imax - 1;
10306 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
10307 dmult);
10308 switch (eq->entry_count) {
10309 default:
10310 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10311 "0360 Unsupported EQ count. (%d)\n",
10312 eq->entry_count);
10313 if (eq->entry_count < 256)
10314 return -EINVAL;
10315 /* otherwise default to smallest count (drop through) */
10316 case 256:
10317 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
10318 LPFC_EQ_CNT_256);
10319 break;
10320 case 512:
10321 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
10322 LPFC_EQ_CNT_512);
10323 break;
10324 case 1024:
10325 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
10326 LPFC_EQ_CNT_1024);
10327 break;
10328 case 2048:
10329 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
10330 LPFC_EQ_CNT_2048);
10331 break;
10332 case 4096:
10333 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
10334 LPFC_EQ_CNT_4096);
10335 break;
10336 }
10337 list_for_each_entry(dmabuf, &eq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010338 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010339 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10340 putPaddrLow(dmabuf->phys);
10341 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10342 putPaddrHigh(dmabuf->phys);
10343 }
10344 mbox->vport = phba->pport;
10345 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10346 mbox->context1 = NULL;
10347 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10348 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
10349 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10350 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10351 if (shdr_status || shdr_add_status || rc) {
10352 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10353 "2500 EQ_CREATE mailbox failed with "
10354 "status x%x add_status x%x, mbx status x%x\n",
10355 shdr_status, shdr_add_status, rc);
10356 status = -ENXIO;
10357 }
10358 eq->type = LPFC_EQ;
10359 eq->subtype = LPFC_NONE;
10360 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
10361 if (eq->queue_id == 0xFFFF)
10362 status = -ENXIO;
10363 eq->host_index = 0;
10364 eq->hba_index = 0;
10365
James Smart8fa38512009-07-19 10:01:03 -040010366 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010367 return status;
10368}
10369
10370/**
10371 * lpfc_cq_create - Create a Completion Queue on the HBA
10372 * @phba: HBA structure that indicates port to create a queue on.
10373 * @cq: The queue structure to use to create the completion queue.
10374 * @eq: The event queue to bind this completion queue to.
10375 *
10376 * This function creates a completion queue, as detailed in @wq, on a port,
10377 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
10378 *
10379 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10380 * is used to get the entry count and entry size that are necessary to
10381 * determine the number of pages to allocate and use for this queue. The @eq
10382 * is used to indicate which event queue to bind this completion queue to. This
10383 * function will send the CQ_CREATE mailbox command to the HBA to setup the
10384 * completion queue. This function is asynchronous and will wait for the mailbox
10385 * command to finish before continuing.
10386 *
10387 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040010388 * memory this function will return -ENOMEM. If the queue create mailbox command
10389 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040010390 **/
10391uint32_t
10392lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
10393 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
10394{
10395 struct lpfc_mbx_cq_create *cq_create;
10396 struct lpfc_dmabuf *dmabuf;
10397 LPFC_MBOXQ_t *mbox;
10398 int rc, length, status = 0;
10399 uint32_t shdr_status, shdr_add_status;
10400 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010401 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10402
10403 if (!phba->sli4_hba.pc_sli4_params.supported)
10404 hw_page_size = SLI4_PAGE_SIZE;
10405
James Smart4f774512009-05-22 14:52:35 -040010406
10407 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10408 if (!mbox)
10409 return -ENOMEM;
10410 length = (sizeof(struct lpfc_mbx_cq_create) -
10411 sizeof(struct lpfc_sli4_cfg_mhdr));
10412 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10413 LPFC_MBOX_OPCODE_CQ_CREATE,
10414 length, LPFC_SLI4_MBX_EMBED);
10415 cq_create = &mbox->u.mqe.un.cq_create;
10416 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
10417 cq->page_count);
10418 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
10419 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
10420 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
10421 switch (cq->entry_count) {
10422 default:
10423 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10424 "0361 Unsupported CQ count. (%d)\n",
10425 cq->entry_count);
10426 if (cq->entry_count < 256)
10427 return -EINVAL;
10428 /* otherwise default to smallest count (drop through) */
10429 case 256:
10430 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
10431 LPFC_CQ_CNT_256);
10432 break;
10433 case 512:
10434 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
10435 LPFC_CQ_CNT_512);
10436 break;
10437 case 1024:
10438 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
10439 LPFC_CQ_CNT_1024);
10440 break;
10441 }
10442 list_for_each_entry(dmabuf, &cq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010443 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010444 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10445 putPaddrLow(dmabuf->phys);
10446 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10447 putPaddrHigh(dmabuf->phys);
10448 }
10449 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10450
10451 /* The IOCTL status is embedded in the mailbox subheader. */
10452 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
10453 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10454 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10455 if (shdr_status || shdr_add_status || rc) {
10456 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10457 "2501 CQ_CREATE mailbox failed with "
10458 "status x%x add_status x%x, mbx status x%x\n",
10459 shdr_status, shdr_add_status, rc);
10460 status = -ENXIO;
10461 goto out;
10462 }
10463 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
10464 if (cq->queue_id == 0xFFFF) {
10465 status = -ENXIO;
10466 goto out;
10467 }
10468 /* link the cq onto the parent eq child list */
10469 list_add_tail(&cq->list, &eq->child_list);
10470 /* Set up completion queue's type and subtype */
10471 cq->type = type;
10472 cq->subtype = subtype;
10473 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
10474 cq->host_index = 0;
10475 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -040010476
James Smart8fa38512009-07-19 10:01:03 -040010477out:
10478 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010479 return status;
10480}
10481
10482/**
James Smartb19a0612010-04-06 14:48:51 -040010483 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
James Smart04c68492009-05-22 14:52:52 -040010484 * @phba: HBA structure that indicates port to create a queue on.
10485 * @mq: The queue structure to use to create the mailbox queue.
James Smartb19a0612010-04-06 14:48:51 -040010486 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
10487 * @cq: The completion queue to associate with this cq.
James Smart04c68492009-05-22 14:52:52 -040010488 *
James Smartb19a0612010-04-06 14:48:51 -040010489 * This function provides failback (fb) functionality when the
10490 * mq_create_ext fails on older FW generations. It's purpose is identical
10491 * to mq_create_ext otherwise.
James Smart04c68492009-05-22 14:52:52 -040010492 *
James Smartb19a0612010-04-06 14:48:51 -040010493 * This routine cannot fail as all attributes were previously accessed and
10494 * initialized in mq_create_ext.
James Smart04c68492009-05-22 14:52:52 -040010495 **/
James Smartb19a0612010-04-06 14:48:51 -040010496static void
10497lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
10498 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
James Smart04c68492009-05-22 14:52:52 -040010499{
10500 struct lpfc_mbx_mq_create *mq_create;
10501 struct lpfc_dmabuf *dmabuf;
James Smartb19a0612010-04-06 14:48:51 -040010502 int length;
James Smart04c68492009-05-22 14:52:52 -040010503
James Smart04c68492009-05-22 14:52:52 -040010504 length = (sizeof(struct lpfc_mbx_mq_create) -
10505 sizeof(struct lpfc_sli4_cfg_mhdr));
10506 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10507 LPFC_MBOX_OPCODE_MQ_CREATE,
10508 length, LPFC_SLI4_MBX_EMBED);
10509 mq_create = &mbox->u.mqe.un.mq_create;
10510 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
James Smartb19a0612010-04-06 14:48:51 -040010511 mq->page_count);
James Smart04c68492009-05-22 14:52:52 -040010512 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
James Smartb19a0612010-04-06 14:48:51 -040010513 cq->queue_id);
James Smart04c68492009-05-22 14:52:52 -040010514 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
10515 switch (mq->entry_count) {
James Smart04c68492009-05-22 14:52:52 -040010516 case 16:
10517 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
10518 LPFC_MQ_CNT_16);
10519 break;
10520 case 32:
10521 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
10522 LPFC_MQ_CNT_32);
10523 break;
10524 case 64:
10525 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
10526 LPFC_MQ_CNT_64);
10527 break;
10528 case 128:
10529 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
10530 LPFC_MQ_CNT_128);
10531 break;
10532 }
10533 list_for_each_entry(dmabuf, &mq->page_list, list) {
10534 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
James Smartb19a0612010-04-06 14:48:51 -040010535 putPaddrLow(dmabuf->phys);
James Smart04c68492009-05-22 14:52:52 -040010536 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smartb19a0612010-04-06 14:48:51 -040010537 putPaddrHigh(dmabuf->phys);
10538 }
10539}
10540
10541/**
10542 * lpfc_mq_create - Create a mailbox Queue on the HBA
10543 * @phba: HBA structure that indicates port to create a queue on.
10544 * @mq: The queue structure to use to create the mailbox queue.
10545 * @cq: The completion queue to associate with this cq.
10546 * @subtype: The queue's subtype.
10547 *
10548 * This function creates a mailbox queue, as detailed in @mq, on a port,
10549 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10550 *
10551 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10552 * is used to get the entry count and entry size that are necessary to
10553 * determine the number of pages to allocate and use for this queue. This
10554 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10555 * mailbox queue. This function is asynchronous and will wait for the mailbox
10556 * command to finish before continuing.
10557 *
10558 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040010559 * memory this function will return -ENOMEM. If the queue create mailbox command
10560 * fails this function will return -ENXIO.
James Smartb19a0612010-04-06 14:48:51 -040010561 **/
10562int32_t
10563lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
10564 struct lpfc_queue *cq, uint32_t subtype)
10565{
10566 struct lpfc_mbx_mq_create *mq_create;
10567 struct lpfc_mbx_mq_create_ext *mq_create_ext;
10568 struct lpfc_dmabuf *dmabuf;
10569 LPFC_MBOXQ_t *mbox;
10570 int rc, length, status = 0;
10571 uint32_t shdr_status, shdr_add_status;
10572 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010573 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smartb19a0612010-04-06 14:48:51 -040010574
James Smart49198b32010-04-06 15:04:33 -040010575 if (!phba->sli4_hba.pc_sli4_params.supported)
10576 hw_page_size = SLI4_PAGE_SIZE;
James Smartb19a0612010-04-06 14:48:51 -040010577
10578 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10579 if (!mbox)
10580 return -ENOMEM;
10581 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
10582 sizeof(struct lpfc_sli4_cfg_mhdr));
10583 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10584 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
10585 length, LPFC_SLI4_MBX_EMBED);
10586
10587 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
James Smart70f3c072010-12-15 17:57:33 -050010588 bf_set(lpfc_mbx_mq_create_ext_num_pages,
10589 &mq_create_ext->u.request, mq->page_count);
10590 bf_set(lpfc_mbx_mq_create_ext_async_evt_link,
10591 &mq_create_ext->u.request, 1);
10592 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip,
James Smartb19a0612010-04-06 14:48:51 -040010593 &mq_create_ext->u.request, 1);
10594 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
10595 &mq_create_ext->u.request, 1);
James Smart70f3c072010-12-15 17:57:33 -050010596 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc,
10597 &mq_create_ext->u.request, 1);
10598 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli,
10599 &mq_create_ext->u.request, 1);
10600 bf_set(lpfc_mq_context_cq_id,
10601 &mq_create_ext->u.request.context, cq->queue_id);
James Smartb19a0612010-04-06 14:48:51 -040010602 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
10603 switch (mq->entry_count) {
10604 default:
10605 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10606 "0362 Unsupported MQ count. (%d)\n",
10607 mq->entry_count);
10608 if (mq->entry_count < 16)
10609 return -EINVAL;
10610 /* otherwise default to smallest count (drop through) */
10611 case 16:
10612 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10613 LPFC_MQ_CNT_16);
10614 break;
10615 case 32:
10616 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10617 LPFC_MQ_CNT_32);
10618 break;
10619 case 64:
10620 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10621 LPFC_MQ_CNT_64);
10622 break;
10623 case 128:
10624 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10625 LPFC_MQ_CNT_128);
10626 break;
10627 }
10628 list_for_each_entry(dmabuf, &mq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010629 memset(dmabuf->virt, 0, hw_page_size);
James Smartb19a0612010-04-06 14:48:51 -040010630 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
10631 putPaddrLow(dmabuf->phys);
10632 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smart04c68492009-05-22 14:52:52 -040010633 putPaddrHigh(dmabuf->phys);
10634 }
10635 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smartb19a0612010-04-06 14:48:51 -040010636 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
10637 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10638 &mq_create_ext->u.response);
10639 if (rc != MBX_SUCCESS) {
10640 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10641 "2795 MQ_CREATE_EXT failed with "
10642 "status x%x. Failback to MQ_CREATE.\n",
10643 rc);
10644 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
10645 mq_create = &mbox->u.mqe.un.mq_create;
10646 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10647 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
10648 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10649 &mq_create->u.response);
10650 }
10651
James Smart04c68492009-05-22 14:52:52 -040010652 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart04c68492009-05-22 14:52:52 -040010653 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10654 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10655 if (shdr_status || shdr_add_status || rc) {
10656 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10657 "2502 MQ_CREATE mailbox failed with "
10658 "status x%x add_status x%x, mbx status x%x\n",
10659 shdr_status, shdr_add_status, rc);
10660 status = -ENXIO;
10661 goto out;
10662 }
James Smart04c68492009-05-22 14:52:52 -040010663 if (mq->queue_id == 0xFFFF) {
10664 status = -ENXIO;
10665 goto out;
10666 }
10667 mq->type = LPFC_MQ;
10668 mq->subtype = subtype;
10669 mq->host_index = 0;
10670 mq->hba_index = 0;
10671
10672 /* link the mq onto the parent cq child list */
10673 list_add_tail(&mq->list, &cq->child_list);
10674out:
James Smart8fa38512009-07-19 10:01:03 -040010675 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040010676 return status;
10677}
10678
10679/**
James Smart4f774512009-05-22 14:52:35 -040010680 * lpfc_wq_create - Create a Work Queue on the HBA
10681 * @phba: HBA structure that indicates port to create a queue on.
10682 * @wq: The queue structure to use to create the work queue.
10683 * @cq: The completion queue to bind this work queue to.
10684 * @subtype: The subtype of the work queue indicating its functionality.
10685 *
10686 * This function creates a work queue, as detailed in @wq, on a port, described
10687 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10688 *
10689 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10690 * is used to get the entry count and entry size that are necessary to
10691 * determine the number of pages to allocate and use for this queue. The @cq
10692 * is used to indicate which completion queue to bind this work queue to. This
10693 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10694 * work queue. This function is asynchronous and will wait for the mailbox
10695 * command to finish before continuing.
10696 *
10697 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040010698 * memory this function will return -ENOMEM. If the queue create mailbox command
10699 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040010700 **/
10701uint32_t
10702lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
10703 struct lpfc_queue *cq, uint32_t subtype)
10704{
10705 struct lpfc_mbx_wq_create *wq_create;
10706 struct lpfc_dmabuf *dmabuf;
10707 LPFC_MBOXQ_t *mbox;
10708 int rc, length, status = 0;
10709 uint32_t shdr_status, shdr_add_status;
10710 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010711 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10712
10713 if (!phba->sli4_hba.pc_sli4_params.supported)
10714 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040010715
10716 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10717 if (!mbox)
10718 return -ENOMEM;
10719 length = (sizeof(struct lpfc_mbx_wq_create) -
10720 sizeof(struct lpfc_sli4_cfg_mhdr));
10721 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10722 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
10723 length, LPFC_SLI4_MBX_EMBED);
10724 wq_create = &mbox->u.mqe.un.wq_create;
10725 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
10726 wq->page_count);
10727 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
10728 cq->queue_id);
10729 list_for_each_entry(dmabuf, &wq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010730 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010731 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10732 putPaddrLow(dmabuf->phys);
10733 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10734 putPaddrHigh(dmabuf->phys);
10735 }
10736 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10737 /* The IOCTL status is embedded in the mailbox subheader. */
10738 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
10739 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10740 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10741 if (shdr_status || shdr_add_status || rc) {
10742 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10743 "2503 WQ_CREATE mailbox failed with "
10744 "status x%x add_status x%x, mbx status x%x\n",
10745 shdr_status, shdr_add_status, rc);
10746 status = -ENXIO;
10747 goto out;
10748 }
10749 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
10750 if (wq->queue_id == 0xFFFF) {
10751 status = -ENXIO;
10752 goto out;
10753 }
10754 wq->type = LPFC_WQ;
10755 wq->subtype = subtype;
10756 wq->host_index = 0;
10757 wq->hba_index = 0;
10758
10759 /* link the wq onto the parent cq child list */
10760 list_add_tail(&wq->list, &cq->child_list);
10761out:
James Smart8fa38512009-07-19 10:01:03 -040010762 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010763 return status;
10764}
10765
10766/**
10767 * lpfc_rq_create - Create a Receive Queue on the HBA
10768 * @phba: HBA structure that indicates port to create a queue on.
10769 * @hrq: The queue structure to use to create the header receive queue.
10770 * @drq: The queue structure to use to create the data receive queue.
10771 * @cq: The completion queue to bind this work queue to.
10772 *
10773 * This function creates a receive buffer queue pair , as detailed in @hrq and
10774 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10775 * to the HBA.
10776 *
10777 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10778 * struct is used to get the entry count that is necessary to determine the
10779 * number of pages to use for this queue. The @cq is used to indicate which
10780 * completion queue to bind received buffers that are posted to these queues to.
10781 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10782 * receive queue pair. This function is asynchronous and will wait for the
10783 * mailbox command to finish before continuing.
10784 *
10785 * On success this function will return a zero. If unable to allocate enough
James Smartd439d282010-09-29 11:18:45 -040010786 * memory this function will return -ENOMEM. If the queue create mailbox command
10787 * fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040010788 **/
10789uint32_t
10790lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10791 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
10792{
10793 struct lpfc_mbx_rq_create *rq_create;
10794 struct lpfc_dmabuf *dmabuf;
10795 LPFC_MBOXQ_t *mbox;
10796 int rc, length, status = 0;
10797 uint32_t shdr_status, shdr_add_status;
10798 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010799 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10800
10801 if (!phba->sli4_hba.pc_sli4_params.supported)
10802 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040010803
10804 if (hrq->entry_count != drq->entry_count)
10805 return -EINVAL;
10806 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10807 if (!mbox)
10808 return -ENOMEM;
10809 length = (sizeof(struct lpfc_mbx_rq_create) -
10810 sizeof(struct lpfc_sli4_cfg_mhdr));
10811 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10812 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10813 length, LPFC_SLI4_MBX_EMBED);
10814 rq_create = &mbox->u.mqe.un.rq_create;
10815 switch (hrq->entry_count) {
10816 default:
10817 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10818 "2535 Unsupported RQ count. (%d)\n",
10819 hrq->entry_count);
10820 if (hrq->entry_count < 512)
10821 return -EINVAL;
10822 /* otherwise default to smallest count (drop through) */
10823 case 512:
10824 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10825 LPFC_RQ_RING_SIZE_512);
10826 break;
10827 case 1024:
10828 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10829 LPFC_RQ_RING_SIZE_1024);
10830 break;
10831 case 2048:
10832 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10833 LPFC_RQ_RING_SIZE_2048);
10834 break;
10835 case 4096:
10836 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10837 LPFC_RQ_RING_SIZE_4096);
10838 break;
10839 }
10840 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10841 cq->queue_id);
10842 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10843 hrq->page_count);
10844 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10845 LPFC_HDR_BUF_SIZE);
10846 list_for_each_entry(dmabuf, &hrq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010847 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010848 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10849 putPaddrLow(dmabuf->phys);
10850 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10851 putPaddrHigh(dmabuf->phys);
10852 }
10853 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10854 /* The IOCTL status is embedded in the mailbox subheader. */
10855 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10856 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10857 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10858 if (shdr_status || shdr_add_status || rc) {
10859 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10860 "2504 RQ_CREATE mailbox failed with "
10861 "status x%x add_status x%x, mbx status x%x\n",
10862 shdr_status, shdr_add_status, rc);
10863 status = -ENXIO;
10864 goto out;
10865 }
10866 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10867 if (hrq->queue_id == 0xFFFF) {
10868 status = -ENXIO;
10869 goto out;
10870 }
10871 hrq->type = LPFC_HRQ;
10872 hrq->subtype = subtype;
10873 hrq->host_index = 0;
10874 hrq->hba_index = 0;
10875
10876 /* now create the data queue */
10877 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10878 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10879 length, LPFC_SLI4_MBX_EMBED);
10880 switch (drq->entry_count) {
10881 default:
10882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10883 "2536 Unsupported RQ count. (%d)\n",
10884 drq->entry_count);
10885 if (drq->entry_count < 512)
10886 return -EINVAL;
10887 /* otherwise default to smallest count (drop through) */
10888 case 512:
10889 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10890 LPFC_RQ_RING_SIZE_512);
10891 break;
10892 case 1024:
10893 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10894 LPFC_RQ_RING_SIZE_1024);
10895 break;
10896 case 2048:
10897 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10898 LPFC_RQ_RING_SIZE_2048);
10899 break;
10900 case 4096:
10901 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10902 LPFC_RQ_RING_SIZE_4096);
10903 break;
10904 }
10905 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10906 cq->queue_id);
10907 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10908 drq->page_count);
10909 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10910 LPFC_DATA_BUF_SIZE);
10911 list_for_each_entry(dmabuf, &drq->page_list, list) {
10912 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10913 putPaddrLow(dmabuf->phys);
10914 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10915 putPaddrHigh(dmabuf->phys);
10916 }
10917 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10918 /* The IOCTL status is embedded in the mailbox subheader. */
10919 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10920 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10921 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10922 if (shdr_status || shdr_add_status || rc) {
10923 status = -ENXIO;
10924 goto out;
10925 }
10926 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10927 if (drq->queue_id == 0xFFFF) {
10928 status = -ENXIO;
10929 goto out;
10930 }
10931 drq->type = LPFC_DRQ;
10932 drq->subtype = subtype;
10933 drq->host_index = 0;
10934 drq->hba_index = 0;
10935
10936 /* link the header and data RQs onto the parent cq child list */
10937 list_add_tail(&hrq->list, &cq->child_list);
10938 list_add_tail(&drq->list, &cq->child_list);
10939
10940out:
James Smart8fa38512009-07-19 10:01:03 -040010941 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010942 return status;
10943}
10944
10945/**
10946 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10947 * @eq: The queue structure associated with the queue to destroy.
10948 *
10949 * This function destroys a queue, as detailed in @eq by sending an mailbox
10950 * command, specific to the type of queue, to the HBA.
10951 *
10952 * The @eq struct is used to get the queue ID of the queue to destroy.
10953 *
10954 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040010955 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040010956 **/
10957uint32_t
10958lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10959{
10960 LPFC_MBOXQ_t *mbox;
10961 int rc, length, status = 0;
10962 uint32_t shdr_status, shdr_add_status;
10963 union lpfc_sli4_cfg_shdr *shdr;
10964
10965 if (!eq)
10966 return -ENODEV;
10967 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10968 if (!mbox)
10969 return -ENOMEM;
10970 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10971 sizeof(struct lpfc_sli4_cfg_mhdr));
10972 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10973 LPFC_MBOX_OPCODE_EQ_DESTROY,
10974 length, LPFC_SLI4_MBX_EMBED);
10975 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10976 eq->queue_id);
10977 mbox->vport = eq->phba->pport;
10978 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10979
10980 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10981 /* The IOCTL status is embedded in the mailbox subheader. */
10982 shdr = (union lpfc_sli4_cfg_shdr *)
10983 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10984 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10985 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10986 if (shdr_status || shdr_add_status || rc) {
10987 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10988 "2505 EQ_DESTROY mailbox failed with "
10989 "status x%x add_status x%x, mbx status x%x\n",
10990 shdr_status, shdr_add_status, rc);
10991 status = -ENXIO;
10992 }
10993
10994 /* Remove eq from any list */
10995 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040010996 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010997 return status;
10998}
10999
11000/**
11001 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
11002 * @cq: The queue structure associated with the queue to destroy.
11003 *
11004 * This function destroys a queue, as detailed in @cq by sending an mailbox
11005 * command, specific to the type of queue, to the HBA.
11006 *
11007 * The @cq struct is used to get the queue ID of the queue to destroy.
11008 *
11009 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040011010 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040011011 **/
11012uint32_t
11013lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
11014{
11015 LPFC_MBOXQ_t *mbox;
11016 int rc, length, status = 0;
11017 uint32_t shdr_status, shdr_add_status;
11018 union lpfc_sli4_cfg_shdr *shdr;
11019
11020 if (!cq)
11021 return -ENODEV;
11022 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
11023 if (!mbox)
11024 return -ENOMEM;
11025 length = (sizeof(struct lpfc_mbx_cq_destroy) -
11026 sizeof(struct lpfc_sli4_cfg_mhdr));
11027 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
11028 LPFC_MBOX_OPCODE_CQ_DESTROY,
11029 length, LPFC_SLI4_MBX_EMBED);
11030 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
11031 cq->queue_id);
11032 mbox->vport = cq->phba->pport;
11033 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11034 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
11035 /* The IOCTL status is embedded in the mailbox subheader. */
11036 shdr = (union lpfc_sli4_cfg_shdr *)
11037 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
11038 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11039 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11040 if (shdr_status || shdr_add_status || rc) {
11041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11042 "2506 CQ_DESTROY mailbox failed with "
11043 "status x%x add_status x%x, mbx status x%x\n",
11044 shdr_status, shdr_add_status, rc);
11045 status = -ENXIO;
11046 }
11047 /* Remove cq from any list */
11048 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040011049 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040011050 return status;
11051}
11052
11053/**
James Smart04c68492009-05-22 14:52:52 -040011054 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
11055 * @qm: The queue structure associated with the queue to destroy.
11056 *
11057 * This function destroys a queue, as detailed in @mq by sending an mailbox
11058 * command, specific to the type of queue, to the HBA.
11059 *
11060 * The @mq struct is used to get the queue ID of the queue to destroy.
11061 *
11062 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040011063 * command fails this function will return -ENXIO.
James Smart04c68492009-05-22 14:52:52 -040011064 **/
11065uint32_t
11066lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
11067{
11068 LPFC_MBOXQ_t *mbox;
11069 int rc, length, status = 0;
11070 uint32_t shdr_status, shdr_add_status;
11071 union lpfc_sli4_cfg_shdr *shdr;
11072
11073 if (!mq)
11074 return -ENODEV;
11075 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
11076 if (!mbox)
11077 return -ENOMEM;
11078 length = (sizeof(struct lpfc_mbx_mq_destroy) -
11079 sizeof(struct lpfc_sli4_cfg_mhdr));
11080 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
11081 LPFC_MBOX_OPCODE_MQ_DESTROY,
11082 length, LPFC_SLI4_MBX_EMBED);
11083 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
11084 mq->queue_id);
11085 mbox->vport = mq->phba->pport;
11086 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11087 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
11088 /* The IOCTL status is embedded in the mailbox subheader. */
11089 shdr = (union lpfc_sli4_cfg_shdr *)
11090 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
11091 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11092 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11093 if (shdr_status || shdr_add_status || rc) {
11094 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11095 "2507 MQ_DESTROY mailbox failed with "
11096 "status x%x add_status x%x, mbx status x%x\n",
11097 shdr_status, shdr_add_status, rc);
11098 status = -ENXIO;
11099 }
11100 /* Remove mq from any list */
11101 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040011102 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040011103 return status;
11104}
11105
11106/**
James Smart4f774512009-05-22 14:52:35 -040011107 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
11108 * @wq: The queue structure associated with the queue to destroy.
11109 *
11110 * This function destroys a queue, as detailed in @wq by sending an mailbox
11111 * command, specific to the type of queue, to the HBA.
11112 *
11113 * The @wq struct is used to get the queue ID of the queue to destroy.
11114 *
11115 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040011116 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040011117 **/
11118uint32_t
11119lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
11120{
11121 LPFC_MBOXQ_t *mbox;
11122 int rc, length, status = 0;
11123 uint32_t shdr_status, shdr_add_status;
11124 union lpfc_sli4_cfg_shdr *shdr;
11125
11126 if (!wq)
11127 return -ENODEV;
11128 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
11129 if (!mbox)
11130 return -ENOMEM;
11131 length = (sizeof(struct lpfc_mbx_wq_destroy) -
11132 sizeof(struct lpfc_sli4_cfg_mhdr));
11133 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
11134 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
11135 length, LPFC_SLI4_MBX_EMBED);
11136 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
11137 wq->queue_id);
11138 mbox->vport = wq->phba->pport;
11139 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11140 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
11141 shdr = (union lpfc_sli4_cfg_shdr *)
11142 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
11143 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11144 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11145 if (shdr_status || shdr_add_status || rc) {
11146 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11147 "2508 WQ_DESTROY mailbox failed with "
11148 "status x%x add_status x%x, mbx status x%x\n",
11149 shdr_status, shdr_add_status, rc);
11150 status = -ENXIO;
11151 }
11152 /* Remove wq from any list */
11153 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040011154 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040011155 return status;
11156}
11157
11158/**
11159 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
11160 * @rq: The queue structure associated with the queue to destroy.
11161 *
11162 * This function destroys a queue, as detailed in @rq by sending an mailbox
11163 * command, specific to the type of queue, to the HBA.
11164 *
11165 * The @rq struct is used to get the queue ID of the queue to destroy.
11166 *
11167 * On success this function will return a zero. If the queue destroy mailbox
James Smartd439d282010-09-29 11:18:45 -040011168 * command fails this function will return -ENXIO.
James Smart4f774512009-05-22 14:52:35 -040011169 **/
11170uint32_t
11171lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
11172 struct lpfc_queue *drq)
11173{
11174 LPFC_MBOXQ_t *mbox;
11175 int rc, length, status = 0;
11176 uint32_t shdr_status, shdr_add_status;
11177 union lpfc_sli4_cfg_shdr *shdr;
11178
11179 if (!hrq || !drq)
11180 return -ENODEV;
11181 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
11182 if (!mbox)
11183 return -ENOMEM;
11184 length = (sizeof(struct lpfc_mbx_rq_destroy) -
James Smartfedd3b72011-02-16 12:39:24 -050011185 sizeof(struct lpfc_sli4_cfg_mhdr));
James Smart4f774512009-05-22 14:52:35 -040011186 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
11187 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
11188 length, LPFC_SLI4_MBX_EMBED);
11189 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
11190 hrq->queue_id);
11191 mbox->vport = hrq->phba->pport;
11192 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
11193 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
11194 /* The IOCTL status is embedded in the mailbox subheader. */
11195 shdr = (union lpfc_sli4_cfg_shdr *)
11196 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
11197 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11198 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11199 if (shdr_status || shdr_add_status || rc) {
11200 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11201 "2509 RQ_DESTROY mailbox failed with "
11202 "status x%x add_status x%x, mbx status x%x\n",
11203 shdr_status, shdr_add_status, rc);
11204 if (rc != MBX_TIMEOUT)
11205 mempool_free(mbox, hrq->phba->mbox_mem_pool);
11206 return -ENXIO;
11207 }
11208 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
11209 drq->queue_id);
11210 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
11211 shdr = (union lpfc_sli4_cfg_shdr *)
11212 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
11213 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11214 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11215 if (shdr_status || shdr_add_status || rc) {
11216 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11217 "2510 RQ_DESTROY mailbox failed with "
11218 "status x%x add_status x%x, mbx status x%x\n",
11219 shdr_status, shdr_add_status, rc);
11220 status = -ENXIO;
11221 }
11222 list_del_init(&hrq->list);
11223 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040011224 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040011225 return status;
11226}
11227
11228/**
11229 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
11230 * @phba: The virtual port for which this call being executed.
11231 * @pdma_phys_addr0: Physical address of the 1st SGL page.
11232 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
11233 * @xritag: the xritag that ties this io to the SGL pages.
11234 *
11235 * This routine will post the sgl pages for the IO that has the xritag
11236 * that is in the iocbq structure. The xritag is assigned during iocbq
11237 * creation and persists for as long as the driver is loaded.
11238 * if the caller has fewer than 256 scatter gather segments to map then
11239 * pdma_phys_addr1 should be 0.
11240 * If the caller needs to map more than 256 scatter gather segment then
11241 * pdma_phys_addr1 should be a valid physical address.
11242 * physical address for SGLs must be 64 byte aligned.
11243 * If you are going to map 2 SGL's then the first one must have 256 entries
11244 * the second sgl can have between 1 and 256 entries.
11245 *
11246 * Return codes:
11247 * 0 - Success
11248 * -ENXIO, -ENOMEM - Failure
11249 **/
11250int
11251lpfc_sli4_post_sgl(struct lpfc_hba *phba,
11252 dma_addr_t pdma_phys_addr0,
11253 dma_addr_t pdma_phys_addr1,
11254 uint16_t xritag)
11255{
11256 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
11257 LPFC_MBOXQ_t *mbox;
11258 int rc;
11259 uint32_t shdr_status, shdr_add_status;
11260 union lpfc_sli4_cfg_shdr *shdr;
11261
11262 if (xritag == NO_XRI) {
11263 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11264 "0364 Invalid param:\n");
11265 return -EINVAL;
11266 }
11267
11268 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11269 if (!mbox)
11270 return -ENOMEM;
11271
11272 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
11273 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
11274 sizeof(struct lpfc_mbx_post_sgl_pages) -
James Smartfedd3b72011-02-16 12:39:24 -050011275 sizeof(struct lpfc_sli4_cfg_mhdr), LPFC_SLI4_MBX_EMBED);
James Smart4f774512009-05-22 14:52:35 -040011276
11277 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
11278 &mbox->u.mqe.un.post_sgl_pages;
11279 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
11280 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
11281
11282 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
11283 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
11284 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
11285 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
11286
11287 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
11288 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
11289 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
11290 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
11291 if (!phba->sli4_hba.intr_enable)
11292 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11293 else
11294 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
11295 /* The IOCTL status is embedded in the mailbox subheader. */
11296 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
11297 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11298 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11299 if (rc != MBX_TIMEOUT)
11300 mempool_free(mbox, phba->mbox_mem_pool);
11301 if (shdr_status || shdr_add_status || rc) {
11302 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11303 "2511 POST_SGL mailbox failed with "
11304 "status x%x add_status x%x, mbx status x%x\n",
11305 shdr_status, shdr_add_status, rc);
11306 rc = -ENXIO;
11307 }
11308 return 0;
11309}
James Smart4f774512009-05-22 14:52:35 -040011310
11311/**
11312 * lpfc_sli4_next_xritag - Get an xritag for the io
11313 * @phba: Pointer to HBA context object.
11314 *
11315 * This function gets an xritag for the iocb. If there is no unused xritag
11316 * it will return 0xffff.
11317 * The function returns the allocated xritag if successful, else returns zero.
11318 * Zero is not a valid xritag.
11319 * The caller is not required to hold any lock.
11320 **/
11321uint16_t
11322lpfc_sli4_next_xritag(struct lpfc_hba *phba)
11323{
11324 uint16_t xritag;
11325
11326 spin_lock_irq(&phba->hbalock);
11327 xritag = phba->sli4_hba.next_xri;
11328 if ((xritag != (uint16_t) -1) && xritag <
11329 (phba->sli4_hba.max_cfg_param.max_xri
11330 + phba->sli4_hba.max_cfg_param.xri_base)) {
11331 phba->sli4_hba.next_xri++;
11332 phba->sli4_hba.max_cfg_param.xri_used++;
11333 spin_unlock_irq(&phba->hbalock);
11334 return xritag;
11335 }
11336 spin_unlock_irq(&phba->hbalock);
James Smart6a9c52c2009-10-02 15:16:51 -040011337 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smart4f774512009-05-22 14:52:35 -040011338 "2004 Failed to allocate XRI.last XRITAG is %d"
11339 " Max XRI is %d, Used XRI is %d\n",
11340 phba->sli4_hba.next_xri,
11341 phba->sli4_hba.max_cfg_param.max_xri,
11342 phba->sli4_hba.max_cfg_param.xri_used);
11343 return -1;
11344}
11345
11346/**
11347 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
11348 * @phba: pointer to lpfc hba data structure.
11349 *
11350 * This routine is invoked to post a block of driver's sgl pages to the
11351 * HBA using non-embedded mailbox command. No Lock is held. This routine
11352 * is only called when the driver is loading and after all IO has been
11353 * stopped.
11354 **/
11355int
11356lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
11357{
11358 struct lpfc_sglq *sglq_entry;
11359 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
11360 struct sgl_page_pairs *sgl_pg_pairs;
11361 void *viraddr;
11362 LPFC_MBOXQ_t *mbox;
11363 uint32_t reqlen, alloclen, pg_pairs;
11364 uint32_t mbox_tmo;
11365 uint16_t xritag_start = 0;
11366 int els_xri_cnt, rc = 0;
11367 uint32_t shdr_status, shdr_add_status;
11368 union lpfc_sli4_cfg_shdr *shdr;
11369
11370 /* The number of sgls to be posted */
11371 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
11372
11373 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
11374 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040011375 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040011376 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11377 "2559 Block sgl registration required DMA "
11378 "size (%d) great than a page\n", reqlen);
11379 return -ENOMEM;
11380 }
11381 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11382 if (!mbox) {
11383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11384 "2560 Failed to allocate mbox cmd memory\n");
11385 return -ENOMEM;
11386 }
11387
11388 /* Allocate DMA memory and set up the non-embedded mailbox command */
11389 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
11390 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
11391 LPFC_SLI4_MBX_NEMBED);
11392
11393 if (alloclen < reqlen) {
11394 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11395 "0285 Allocated DMA memory size (%d) is "
11396 "less than the requested DMA memory "
11397 "size (%d)\n", alloclen, reqlen);
11398 lpfc_sli4_mbox_cmd_free(phba, mbox);
11399 return -ENOMEM;
11400 }
James Smart4f774512009-05-22 14:52:35 -040011401 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040011402 viraddr = mbox->sge_array->addr[0];
11403
11404 /* Set up the SGL pages in the non-embedded DMA pages */
11405 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
11406 sgl_pg_pairs = &sgl->sgl_pg_pairs;
11407
11408 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
11409 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
11410 /* Set up the sge entry */
11411 sgl_pg_pairs->sgl_pg0_addr_lo =
11412 cpu_to_le32(putPaddrLow(sglq_entry->phys));
11413 sgl_pg_pairs->sgl_pg0_addr_hi =
11414 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
11415 sgl_pg_pairs->sgl_pg1_addr_lo =
11416 cpu_to_le32(putPaddrLow(0));
11417 sgl_pg_pairs->sgl_pg1_addr_hi =
11418 cpu_to_le32(putPaddrHigh(0));
11419 /* Keep the first xritag on the list */
11420 if (pg_pairs == 0)
11421 xritag_start = sglq_entry->sli4_xritag;
11422 sgl_pg_pairs++;
11423 }
11424 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart6a9c52c2009-10-02 15:16:51 -040011425 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
James Smart4f774512009-05-22 14:52:35 -040011426 /* Perform endian conversion if necessary */
11427 sgl->word0 = cpu_to_le32(sgl->word0);
11428
11429 if (!phba->sli4_hba.intr_enable)
11430 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11431 else {
11432 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11433 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
11434 }
11435 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
11436 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11437 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11438 if (rc != MBX_TIMEOUT)
11439 lpfc_sli4_mbox_cmd_free(phba, mbox);
11440 if (shdr_status || shdr_add_status || rc) {
11441 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11442 "2513 POST_SGL_BLOCK mailbox command failed "
11443 "status x%x add_status x%x mbx status x%x\n",
11444 shdr_status, shdr_add_status, rc);
11445 rc = -ENXIO;
11446 }
11447 return rc;
11448}
11449
11450/**
11451 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
11452 * @phba: pointer to lpfc hba data structure.
11453 * @sblist: pointer to scsi buffer list.
11454 * @count: number of scsi buffers on the list.
11455 *
11456 * This routine is invoked to post a block of @count scsi sgl pages from a
11457 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
11458 * No Lock is held.
11459 *
11460 **/
11461int
11462lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
11463 int cnt)
11464{
11465 struct lpfc_scsi_buf *psb;
11466 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
11467 struct sgl_page_pairs *sgl_pg_pairs;
11468 void *viraddr;
11469 LPFC_MBOXQ_t *mbox;
11470 uint32_t reqlen, alloclen, pg_pairs;
11471 uint32_t mbox_tmo;
11472 uint16_t xritag_start = 0;
11473 int rc = 0;
11474 uint32_t shdr_status, shdr_add_status;
11475 dma_addr_t pdma_phys_bpl1;
11476 union lpfc_sli4_cfg_shdr *shdr;
11477
11478 /* Calculate the requested length of the dma memory */
11479 reqlen = cnt * sizeof(struct sgl_page_pairs) +
11480 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040011481 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040011482 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
11483 "0217 Block sgl registration required DMA "
11484 "size (%d) great than a page\n", reqlen);
11485 return -ENOMEM;
11486 }
11487 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11488 if (!mbox) {
11489 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11490 "0283 Failed to allocate mbox cmd memory\n");
11491 return -ENOMEM;
11492 }
11493
11494 /* Allocate DMA memory and set up the non-embedded mailbox command */
11495 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
11496 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
11497 LPFC_SLI4_MBX_NEMBED);
11498
11499 if (alloclen < reqlen) {
11500 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11501 "2561 Allocated DMA memory size (%d) is "
11502 "less than the requested DMA memory "
11503 "size (%d)\n", alloclen, reqlen);
11504 lpfc_sli4_mbox_cmd_free(phba, mbox);
11505 return -ENOMEM;
11506 }
James Smart4f774512009-05-22 14:52:35 -040011507 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040011508 viraddr = mbox->sge_array->addr[0];
11509
11510 /* Set up the SGL pages in the non-embedded DMA pages */
11511 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
11512 sgl_pg_pairs = &sgl->sgl_pg_pairs;
11513
11514 pg_pairs = 0;
11515 list_for_each_entry(psb, sblist, list) {
11516 /* Set up the sge entry */
11517 sgl_pg_pairs->sgl_pg0_addr_lo =
11518 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
11519 sgl_pg_pairs->sgl_pg0_addr_hi =
11520 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
11521 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
11522 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
11523 else
11524 pdma_phys_bpl1 = 0;
11525 sgl_pg_pairs->sgl_pg1_addr_lo =
11526 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
11527 sgl_pg_pairs->sgl_pg1_addr_hi =
11528 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
11529 /* Keep the first xritag on the list */
11530 if (pg_pairs == 0)
11531 xritag_start = psb->cur_iocbq.sli4_xritag;
11532 sgl_pg_pairs++;
11533 pg_pairs++;
11534 }
11535 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
11536 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
11537 /* Perform endian conversion if necessary */
11538 sgl->word0 = cpu_to_le32(sgl->word0);
11539
11540 if (!phba->sli4_hba.intr_enable)
11541 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11542 else {
11543 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11544 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
11545 }
11546 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
11547 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11548 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11549 if (rc != MBX_TIMEOUT)
11550 lpfc_sli4_mbox_cmd_free(phba, mbox);
11551 if (shdr_status || shdr_add_status || rc) {
11552 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11553 "2564 POST_SGL_BLOCK mailbox command failed "
11554 "status x%x add_status x%x mbx status x%x\n",
11555 shdr_status, shdr_add_status, rc);
11556 rc = -ENXIO;
11557 }
11558 return rc;
11559}
11560
11561/**
11562 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11563 * @phba: pointer to lpfc_hba struct that the frame was received on
11564 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11565 *
11566 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11567 * valid type of frame that the LPFC driver will handle. This function will
11568 * return a zero if the frame is a valid frame or a non zero value when the
11569 * frame does not pass the check.
11570 **/
11571static int
11572lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
11573{
Tomas Henzl474ffb72010-12-22 16:52:40 +010011574 /* make rctl_names static to save stack space */
11575 static char *rctl_names[] = FC_RCTL_NAMES_INIT;
James Smart4f774512009-05-22 14:52:35 -040011576 char *type_names[] = FC_TYPE_NAMES_INIT;
11577 struct fc_vft_header *fc_vft_hdr;
11578
11579 switch (fc_hdr->fh_r_ctl) {
11580 case FC_RCTL_DD_UNCAT: /* uncategorized information */
11581 case FC_RCTL_DD_SOL_DATA: /* solicited data */
11582 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
11583 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
11584 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
11585 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
11586 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
11587 case FC_RCTL_DD_CMD_STATUS: /* command status */
11588 case FC_RCTL_ELS_REQ: /* extended link services request */
11589 case FC_RCTL_ELS_REP: /* extended link services reply */
11590 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
11591 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
11592 case FC_RCTL_BA_NOP: /* basic link service NOP */
11593 case FC_RCTL_BA_ABTS: /* basic link service abort */
11594 case FC_RCTL_BA_RMC: /* remove connection */
11595 case FC_RCTL_BA_ACC: /* basic accept */
11596 case FC_RCTL_BA_RJT: /* basic reject */
11597 case FC_RCTL_BA_PRMT:
11598 case FC_RCTL_ACK_1: /* acknowledge_1 */
11599 case FC_RCTL_ACK_0: /* acknowledge_0 */
11600 case FC_RCTL_P_RJT: /* port reject */
11601 case FC_RCTL_F_RJT: /* fabric reject */
11602 case FC_RCTL_P_BSY: /* port busy */
11603 case FC_RCTL_F_BSY: /* fabric busy to data frame */
11604 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
11605 case FC_RCTL_LCR: /* link credit reset */
11606 case FC_RCTL_END: /* end */
11607 break;
11608 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
11609 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11610 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
11611 return lpfc_fc_frame_check(phba, fc_hdr);
11612 default:
11613 goto drop;
11614 }
11615 switch (fc_hdr->fh_type) {
11616 case FC_TYPE_BLS:
11617 case FC_TYPE_ELS:
11618 case FC_TYPE_FCP:
11619 case FC_TYPE_CT:
11620 break;
11621 case FC_TYPE_IP:
11622 case FC_TYPE_ILS:
11623 default:
11624 goto drop;
11625 }
11626 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11627 "2538 Received frame rctl:%s type:%s\n",
11628 rctl_names[fc_hdr->fh_r_ctl],
11629 type_names[fc_hdr->fh_type]);
11630 return 0;
11631drop:
11632 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11633 "2539 Dropped frame rctl:%s type:%s\n",
11634 rctl_names[fc_hdr->fh_r_ctl],
11635 type_names[fc_hdr->fh_type]);
11636 return 1;
11637}
11638
11639/**
11640 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11641 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11642 *
11643 * This function processes the FC header to retrieve the VFI from the VF
11644 * header, if one exists. This function will return the VFI if one exists
11645 * or 0 if no VSAN Header exists.
11646 **/
11647static uint32_t
11648lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
11649{
11650 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11651
11652 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
11653 return 0;
11654 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
11655}
11656
11657/**
11658 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11659 * @phba: Pointer to the HBA structure to search for the vport on
11660 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11661 * @fcfi: The FC Fabric ID that the frame came from
11662 *
11663 * This function searches the @phba for a vport that matches the content of the
11664 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11665 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11666 * returns the matching vport pointer or NULL if unable to match frame to a
11667 * vport.
11668 **/
11669static struct lpfc_vport *
11670lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
11671 uint16_t fcfi)
11672{
11673 struct lpfc_vport **vports;
11674 struct lpfc_vport *vport = NULL;
11675 int i;
11676 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
11677 fc_hdr->fh_d_id[1] << 8 |
11678 fc_hdr->fh_d_id[2]);
11679
11680 vports = lpfc_create_vport_work_array(phba);
11681 if (vports != NULL)
11682 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
11683 if (phba->fcf.fcfi == fcfi &&
11684 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
11685 vports[i]->fc_myDID == did) {
11686 vport = vports[i];
11687 break;
11688 }
11689 }
11690 lpfc_destroy_vport_work_array(phba, vports);
11691 return vport;
11692}
11693
11694/**
James Smart45ed1192009-10-02 15:17:02 -040011695 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11696 * @vport: The vport to work on.
11697 *
11698 * This function updates the receive sequence time stamp for this vport. The
11699 * receive sequence time stamp indicates the time that the last frame of the
11700 * the sequence that has been idle for the longest amount of time was received.
11701 * the driver uses this time stamp to indicate if any received sequences have
11702 * timed out.
11703 **/
11704void
11705lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
11706{
11707 struct lpfc_dmabuf *h_buf;
11708 struct hbq_dmabuf *dmabuf = NULL;
11709
11710 /* get the oldest sequence on the rcv list */
11711 h_buf = list_get_first(&vport->rcv_buffer_list,
11712 struct lpfc_dmabuf, list);
11713 if (!h_buf)
11714 return;
11715 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11716 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
11717}
11718
11719/**
11720 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11721 * @vport: The vport that the received sequences were sent to.
11722 *
11723 * This function cleans up all outstanding received sequences. This is called
11724 * by the driver when a link event or user action invalidates all the received
11725 * sequences.
11726 **/
11727void
11728lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
11729{
11730 struct lpfc_dmabuf *h_buf, *hnext;
11731 struct lpfc_dmabuf *d_buf, *dnext;
11732 struct hbq_dmabuf *dmabuf = NULL;
11733
11734 /* start with the oldest sequence on the rcv list */
11735 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11736 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11737 list_del_init(&dmabuf->hbuf.list);
11738 list_for_each_entry_safe(d_buf, dnext,
11739 &dmabuf->dbuf.list, list) {
11740 list_del_init(&d_buf->list);
11741 lpfc_in_buf_free(vport->phba, d_buf);
11742 }
11743 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11744 }
11745}
11746
11747/**
11748 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11749 * @vport: The vport that the received sequences were sent to.
11750 *
11751 * This function determines whether any received sequences have timed out by
11752 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11753 * indicates that there is at least one timed out sequence this routine will
11754 * go through the received sequences one at a time from most inactive to most
11755 * active to determine which ones need to be cleaned up. Once it has determined
11756 * that a sequence needs to be cleaned up it will simply free up the resources
11757 * without sending an abort.
11758 **/
11759void
11760lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
11761{
11762 struct lpfc_dmabuf *h_buf, *hnext;
11763 struct lpfc_dmabuf *d_buf, *dnext;
11764 struct hbq_dmabuf *dmabuf = NULL;
11765 unsigned long timeout;
11766 int abort_count = 0;
11767
11768 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11769 vport->rcv_buffer_time_stamp);
11770 if (list_empty(&vport->rcv_buffer_list) ||
11771 time_before(jiffies, timeout))
11772 return;
11773 /* start with the oldest sequence on the rcv list */
11774 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11775 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11776 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11777 dmabuf->time_stamp);
11778 if (time_before(jiffies, timeout))
11779 break;
11780 abort_count++;
11781 list_del_init(&dmabuf->hbuf.list);
11782 list_for_each_entry_safe(d_buf, dnext,
11783 &dmabuf->dbuf.list, list) {
11784 list_del_init(&d_buf->list);
11785 lpfc_in_buf_free(vport->phba, d_buf);
11786 }
11787 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11788 }
11789 if (abort_count)
11790 lpfc_update_rcv_time_stamp(vport);
11791}
11792
11793/**
James Smart4f774512009-05-22 14:52:35 -040011794 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11795 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11796 *
11797 * This function searches through the existing incomplete sequences that have
11798 * been sent to this @vport. If the frame matches one of the incomplete
11799 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11800 * make up that sequence. If no sequence is found that matches this frame then
11801 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11802 * This function returns a pointer to the first dmabuf in the sequence list that
11803 * the frame was linked to.
11804 **/
11805static struct hbq_dmabuf *
11806lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11807{
11808 struct fc_frame_header *new_hdr;
11809 struct fc_frame_header *temp_hdr;
11810 struct lpfc_dmabuf *d_buf;
11811 struct lpfc_dmabuf *h_buf;
11812 struct hbq_dmabuf *seq_dmabuf = NULL;
11813 struct hbq_dmabuf *temp_dmabuf = NULL;
11814
James Smart4d9ab992009-10-02 15:16:39 -040011815 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011816 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011817 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11818 /* Use the hdr_buf to find the sequence that this frame belongs to */
11819 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11820 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11821 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11822 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11823 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11824 continue;
11825 /* found a pending sequence that matches this frame */
11826 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11827 break;
11828 }
11829 if (!seq_dmabuf) {
11830 /*
11831 * This indicates first frame received for this sequence.
11832 * Queue the buffer on the vport's rcv_buffer_list.
11833 */
11834 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040011835 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011836 return dmabuf;
11837 }
11838 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050011839 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11840 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040011841 list_del_init(&seq_dmabuf->hbuf.list);
11842 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11843 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011844 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011845 return dmabuf;
11846 }
James Smart45ed1192009-10-02 15:17:02 -040011847 /* move this sequence to the tail to indicate a young sequence */
11848 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11849 seq_dmabuf->time_stamp = jiffies;
11850 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050011851 if (list_empty(&seq_dmabuf->dbuf.list)) {
11852 temp_hdr = dmabuf->hbuf.virt;
11853 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11854 return seq_dmabuf;
11855 }
James Smart4f774512009-05-22 14:52:35 -040011856 /* find the correct place in the sequence to insert this frame */
11857 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11858 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11859 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11860 /*
11861 * If the frame's sequence count is greater than the frame on
11862 * the list then insert the frame right after this frame
11863 */
James Smarteeead812009-12-21 17:01:23 -050011864 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11865 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040011866 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11867 return seq_dmabuf;
11868 }
11869 }
11870 return NULL;
11871}
11872
11873/**
James Smart6669f9b2009-10-02 15:16:45 -040011874 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11875 * @vport: pointer to a vitural port
11876 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11877 *
11878 * This function tries to abort from the partially assembed sequence, described
11879 * by the information from basic abbort @dmabuf. It checks to see whether such
11880 * partially assembled sequence held by the driver. If so, it shall free up all
11881 * the frames from the partially assembled sequence.
11882 *
11883 * Return
11884 * true -- if there is matching partially assembled sequence present and all
11885 * the frames freed with the sequence;
11886 * false -- if there is no matching partially assembled sequence present so
11887 * nothing got aborted in the lower layer driver
11888 **/
11889static bool
11890lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11891 struct hbq_dmabuf *dmabuf)
11892{
11893 struct fc_frame_header *new_hdr;
11894 struct fc_frame_header *temp_hdr;
11895 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11896 struct hbq_dmabuf *seq_dmabuf = NULL;
11897
11898 /* Use the hdr_buf to find the sequence that matches this frame */
11899 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11900 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11901 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11902 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11903 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11904 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11905 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11906 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11907 continue;
11908 /* found a pending sequence that matches this frame */
11909 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11910 break;
11911 }
11912
11913 /* Free up all the frames from the partially assembled sequence */
11914 if (seq_dmabuf) {
11915 list_for_each_entry_safe(d_buf, n_buf,
11916 &seq_dmabuf->dbuf.list, list) {
11917 list_del_init(&d_buf->list);
11918 lpfc_in_buf_free(vport->phba, d_buf);
11919 }
11920 return true;
11921 }
11922 return false;
11923}
11924
11925/**
11926 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11927 * @phba: Pointer to HBA context object.
11928 * @cmd_iocbq: pointer to the command iocbq structure.
11929 * @rsp_iocbq: pointer to the response iocbq structure.
11930 *
11931 * This function handles the sequence abort accept iocb command complete
11932 * event. It properly releases the memory allocated to the sequence abort
11933 * accept iocb.
11934 **/
11935static void
11936lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11937 struct lpfc_iocbq *cmd_iocbq,
11938 struct lpfc_iocbq *rsp_iocbq)
11939{
11940 if (cmd_iocbq)
11941 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11942}
11943
11944/**
11945 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11946 * @phba: Pointer to HBA context object.
11947 * @fc_hdr: pointer to a FC frame header.
11948 *
11949 * This function sends a basic accept to a previous unsol sequence abort
11950 * event after aborting the sequence handling.
11951 **/
11952static void
11953lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11954 struct fc_frame_header *fc_hdr)
11955{
11956 struct lpfc_iocbq *ctiocb = NULL;
11957 struct lpfc_nodelist *ndlp;
James Smart5ffc2662009-11-18 15:39:44 -050011958 uint16_t oxid, rxid;
11959 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040011960 IOCB_t *icmd;
11961
11962 if (!lpfc_is_link_up(phba))
11963 return;
11964
11965 sid = sli4_sid_from_fc_hdr(fc_hdr);
11966 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050011967 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040011968
11969 ndlp = lpfc_findnode_did(phba->pport, sid);
11970 if (!ndlp) {
11971 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11972 "1268 Find ndlp returned NULL for oxid:x%x "
11973 "SID:x%x\n", oxid, sid);
11974 return;
11975 }
James Smart19ca7602010-11-20 23:11:55 -050011976 if (rxid >= phba->sli4_hba.max_cfg_param.xri_base
11977 && rxid <= (phba->sli4_hba.max_cfg_param.max_xri
11978 + phba->sli4_hba.max_cfg_param.xri_base))
11979 lpfc_set_rrq_active(phba, ndlp, rxid, oxid, 0);
James Smart6669f9b2009-10-02 15:16:45 -040011980
11981 /* Allocate buffer for acc iocb */
11982 ctiocb = lpfc_sli_get_iocbq(phba);
11983 if (!ctiocb)
11984 return;
11985
James Smart5ffc2662009-11-18 15:39:44 -050011986 /* Extract the F_CTL field from FC_HDR */
11987 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11988
James Smart6669f9b2009-10-02 15:16:45 -040011989 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040011990 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050011991 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040011992 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11993 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11994 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11995
11996 /* Fill in the rest of iocb fields */
11997 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11998 icmd->ulpBdeCount = 0;
11999 icmd->ulpLe = 1;
12000 icmd->ulpClass = CLASS3;
12001 icmd->ulpContext = ndlp->nlp_rpi;
James Smartbe858b62010-12-15 17:57:20 -050012002 ctiocb->context1 = ndlp;
James Smart6669f9b2009-10-02 15:16:45 -040012003
James Smart6669f9b2009-10-02 15:16:45 -040012004 ctiocb->iocb_cmpl = NULL;
12005 ctiocb->vport = phba->pport;
12006 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
12007
James Smart5ffc2662009-11-18 15:39:44 -050012008 if (fctl & FC_FC_EX_CTX) {
12009 /* ABTS sent by responder to CT exchange, construction
12010 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
12011 * field and RX_ID from ABTS for RX_ID field.
12012 */
12013 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
12014 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
12015 ctiocb->sli4_xritag = oxid;
12016 } else {
12017 /* ABTS sent by initiator to CT exchange, construction
12018 * of BA_ACC will need to allocate a new XRI as for the
12019 * XRI_TAG and RX_ID fields.
12020 */
12021 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
12022 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
12023 ctiocb->sli4_xritag = NO_XRI;
12024 }
12025 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
12026
James Smart6669f9b2009-10-02 15:16:45 -040012027 /* Xmit CT abts accept on exchange <xid> */
12028 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
12029 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
12030 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
12031 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
12032}
12033
12034/**
12035 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
12036 * @vport: Pointer to the vport on which this sequence was received
12037 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12038 *
12039 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
12040 * receive sequence is only partially assembed by the driver, it shall abort
12041 * the partially assembled frames for the sequence. Otherwise, if the
12042 * unsolicited receive sequence has been completely assembled and passed to
12043 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
12044 * unsolicited sequence has been aborted. After that, it will issue a basic
12045 * accept to accept the abort.
12046 **/
12047void
12048lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
12049 struct hbq_dmabuf *dmabuf)
12050{
12051 struct lpfc_hba *phba = vport->phba;
12052 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050012053 uint32_t fctl;
James Smart6669f9b2009-10-02 15:16:45 -040012054 bool abts_par;
12055
James Smart6669f9b2009-10-02 15:16:45 -040012056 /* Make a copy of fc_hdr before the dmabuf being released */
12057 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050012058 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040012059
James Smart5ffc2662009-11-18 15:39:44 -050012060 if (fctl & FC_FC_EX_CTX) {
12061 /*
12062 * ABTS sent by responder to exchange, just free the buffer
12063 */
James Smart6669f9b2009-10-02 15:16:45 -040012064 lpfc_in_buf_free(phba, &dmabuf->dbuf);
James Smart5ffc2662009-11-18 15:39:44 -050012065 } else {
12066 /*
12067 * ABTS sent by initiator to exchange, need to do cleanup
12068 */
12069 /* Try to abort partially assembled seq */
12070 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
12071
12072 /* Send abort to ULP if partially seq abort failed */
12073 if (abts_par == false)
12074 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
12075 else
12076 lpfc_in_buf_free(phba, &dmabuf->dbuf);
12077 }
James Smart6669f9b2009-10-02 15:16:45 -040012078 /* Send basic accept (BA_ACC) to the abort requester */
12079 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
12080}
12081
12082/**
James Smart4f774512009-05-22 14:52:35 -040012083 * lpfc_seq_complete - Indicates if a sequence is complete
12084 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12085 *
12086 * This function checks the sequence, starting with the frame described by
12087 * @dmabuf, to see if all the frames associated with this sequence are present.
12088 * the frames associated with this sequence are linked to the @dmabuf using the
12089 * dbuf list. This function looks for two major things. 1) That the first frame
12090 * has a sequence count of zero. 2) There is a frame with last frame of sequence
12091 * set. 3) That there are no holes in the sequence count. The function will
12092 * return 1 when the sequence is complete, otherwise it will return 0.
12093 **/
12094static int
12095lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
12096{
12097 struct fc_frame_header *hdr;
12098 struct lpfc_dmabuf *d_buf;
12099 struct hbq_dmabuf *seq_dmabuf;
12100 uint32_t fctl;
12101 int seq_count = 0;
12102
12103 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
12104 /* make sure first fame of sequence has a sequence count of zero */
12105 if (hdr->fh_seq_cnt != seq_count)
12106 return 0;
12107 fctl = (hdr->fh_f_ctl[0] << 16 |
12108 hdr->fh_f_ctl[1] << 8 |
12109 hdr->fh_f_ctl[2]);
12110 /* If last frame of sequence we can return success. */
12111 if (fctl & FC_FC_END_SEQ)
12112 return 1;
12113 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
12114 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
12115 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
12116 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050012117 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040012118 return 0;
12119 fctl = (hdr->fh_f_ctl[0] << 16 |
12120 hdr->fh_f_ctl[1] << 8 |
12121 hdr->fh_f_ctl[2]);
12122 /* If last frame of sequence we can return success. */
12123 if (fctl & FC_FC_END_SEQ)
12124 return 1;
12125 }
12126 return 0;
12127}
12128
12129/**
12130 * lpfc_prep_seq - Prep sequence for ULP processing
12131 * @vport: Pointer to the vport on which this sequence was received
12132 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12133 *
12134 * This function takes a sequence, described by a list of frames, and creates
12135 * a list of iocbq structures to describe the sequence. This iocbq list will be
12136 * used to issue to the generic unsolicited sequence handler. This routine
12137 * returns a pointer to the first iocbq in the list. If the function is unable
12138 * to allocate an iocbq then it throw out the received frames that were not
12139 * able to be described and return a pointer to the first iocbq. If unable to
12140 * allocate any iocbqs (including the first) this function will return NULL.
12141 **/
12142static struct lpfc_iocbq *
12143lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
12144{
12145 struct lpfc_dmabuf *d_buf, *n_buf;
12146 struct lpfc_iocbq *first_iocbq, *iocbq;
12147 struct fc_frame_header *fc_hdr;
12148 uint32_t sid;
James Smarteeead812009-12-21 17:01:23 -050012149 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040012150
12151 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
12152 /* remove from receive buffer list */
12153 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040012154 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040012155 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040012156 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart4f774512009-05-22 14:52:35 -040012157 /* Get an iocbq struct to fill in. */
12158 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
12159 if (first_iocbq) {
12160 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040012161 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040012162 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
12163 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
12164 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
12165 first_iocbq->iocb.unsli3.rcvsli3.vpi =
12166 vport->vpi + vport->phba->vpi_base;
12167 /* put the first buffer into the first IOCBq */
12168 first_iocbq->context2 = &seq_dmabuf->dbuf;
12169 first_iocbq->context3 = NULL;
12170 first_iocbq->iocb.ulpBdeCount = 1;
12171 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
12172 LPFC_DATA_BUF_SIZE;
12173 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart8fa38512009-07-19 10:01:03 -040012174 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040012175 bf_get(lpfc_rcqe_length,
12176 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040012177 }
12178 iocbq = first_iocbq;
12179 /*
12180 * Each IOCBq can have two Buffers assigned, so go through the list
12181 * of buffers for this sequence and save two buffers in each IOCBq
12182 */
12183 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
12184 if (!iocbq) {
12185 lpfc_in_buf_free(vport->phba, d_buf);
12186 continue;
12187 }
12188 if (!iocbq->context3) {
12189 iocbq->context3 = d_buf;
12190 iocbq->iocb.ulpBdeCount++;
James Smarteeead812009-12-21 17:01:23 -050012191 pbde = (struct ulp_bde64 *)
12192 &iocbq->iocb.unsli3.sli3Words[4];
12193 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040012194 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040012195 bf_get(lpfc_rcqe_length,
12196 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040012197 } else {
12198 iocbq = lpfc_sli_get_iocbq(vport->phba);
12199 if (!iocbq) {
12200 if (first_iocbq) {
12201 first_iocbq->iocb.ulpStatus =
12202 IOSTAT_FCP_RSP_ERROR;
12203 first_iocbq->iocb.un.ulpWord[4] =
12204 IOERR_NO_RESOURCES;
12205 }
12206 lpfc_in_buf_free(vport->phba, d_buf);
12207 continue;
12208 }
12209 iocbq->context2 = d_buf;
12210 iocbq->context3 = NULL;
12211 iocbq->iocb.ulpBdeCount = 1;
12212 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
12213 LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040012214 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040012215 bf_get(lpfc_rcqe_length,
12216 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040012217 iocbq->iocb.un.rcvels.remoteID = sid;
12218 list_add_tail(&iocbq->list, &first_iocbq->list);
12219 }
12220 }
12221 return first_iocbq;
12222}
12223
James Smart6669f9b2009-10-02 15:16:45 -040012224static void
12225lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
12226 struct hbq_dmabuf *seq_dmabuf)
12227{
12228 struct fc_frame_header *fc_hdr;
12229 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
12230 struct lpfc_hba *phba = vport->phba;
12231
12232 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
12233 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
12234 if (!iocbq) {
12235 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12236 "2707 Ring %d handler: Failed to allocate "
12237 "iocb Rctl x%x Type x%x received\n",
12238 LPFC_ELS_RING,
12239 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
12240 return;
12241 }
12242 if (!lpfc_complete_unsol_iocb(phba,
12243 &phba->sli.ring[LPFC_ELS_RING],
12244 iocbq, fc_hdr->fh_r_ctl,
12245 fc_hdr->fh_type))
12246 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
12247 "2540 Ring %d handler: unexpected Rctl "
12248 "x%x Type x%x received\n",
12249 LPFC_ELS_RING,
12250 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
12251
12252 /* Free iocb created in lpfc_prep_seq */
12253 list_for_each_entry_safe(curr_iocb, next_iocb,
12254 &iocbq->list, list) {
12255 list_del_init(&curr_iocb->list);
12256 lpfc_sli_release_iocbq(phba, curr_iocb);
12257 }
12258 lpfc_sli_release_iocbq(phba, iocbq);
12259}
12260
James Smart4f774512009-05-22 14:52:35 -040012261/**
12262 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
12263 * @phba: Pointer to HBA context object.
12264 *
12265 * This function is called with no lock held. This function processes all
12266 * the received buffers and gives it to upper layers when a received buffer
12267 * indicates that it is the final frame in the sequence. The interrupt
12268 * service routine processes received buffers at interrupt contexts and adds
12269 * received dma buffers to the rb_pend_list queue and signals the worker thread.
12270 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
12271 * appropriate receive function when the final frame in a sequence is received.
12272 **/
James Smart4d9ab992009-10-02 15:16:39 -040012273void
12274lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
12275 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040012276{
James Smart4d9ab992009-10-02 15:16:39 -040012277 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040012278 struct fc_frame_header *fc_hdr;
12279 struct lpfc_vport *vport;
12280 uint32_t fcfi;
James Smart4f774512009-05-22 14:52:35 -040012281
James Smart4f774512009-05-22 14:52:35 -040012282 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040012283 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
12284 /* check to see if this a valid type of frame */
12285 if (lpfc_fc_frame_check(phba, fc_hdr)) {
12286 lpfc_in_buf_free(phba, &dmabuf->dbuf);
12287 return;
12288 }
12289 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
12290 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
James Smartc8685952009-11-18 15:39:16 -050012291 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
James Smart4d9ab992009-10-02 15:16:39 -040012292 /* throw out the frame */
12293 lpfc_in_buf_free(phba, &dmabuf->dbuf);
12294 return;
12295 }
James Smart6669f9b2009-10-02 15:16:45 -040012296 /* Handle the basic abort sequence (BA_ABTS) event */
12297 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
12298 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
12299 return;
12300 }
12301
James Smart4d9ab992009-10-02 15:16:39 -040012302 /* Link this frame */
12303 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
12304 if (!seq_dmabuf) {
12305 /* unable to add frame to vport - throw it out */
12306 lpfc_in_buf_free(phba, &dmabuf->dbuf);
12307 return;
12308 }
12309 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050012310 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040012311 return;
James Smartdef9c7a2009-12-21 17:02:28 -050012312
James Smart6669f9b2009-10-02 15:16:45 -040012313 /* Send the complete sequence to the upper layer protocol */
12314 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040012315}
James Smart6fb120a2009-05-22 14:52:59 -040012316
12317/**
12318 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
12319 * @phba: pointer to lpfc hba data structure.
12320 *
12321 * This routine is invoked to post rpi header templates to the
12322 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040012323 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12324 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040012325 *
12326 * This routine does not require any locks. It's usage is expected
12327 * to be driver load or reset recovery when the driver is
12328 * sequential.
12329 *
12330 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020012331 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040012332 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040012333 * When this error occurs, the driver is not guaranteed
12334 * to have any rpi regions posted to the device and
12335 * must either attempt to repost the regions or take a
12336 * fatal error.
12337 **/
12338int
12339lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
12340{
12341 struct lpfc_rpi_hdr *rpi_page;
12342 uint32_t rc = 0;
12343
12344 /* Post all rpi memory regions to the port. */
12345 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
12346 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
12347 if (rc != MBX_SUCCESS) {
12348 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12349 "2008 Error %d posting all rpi "
12350 "headers\n", rc);
12351 rc = -EIO;
12352 break;
12353 }
12354 }
12355
12356 return rc;
12357}
12358
12359/**
12360 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
12361 * @phba: pointer to lpfc hba data structure.
12362 * @rpi_page: pointer to the rpi memory region.
12363 *
12364 * This routine is invoked to post a single rpi header to the
12365 * HBA consistent with the SLI-4 interface spec. This memory region
12366 * maps up to 64 rpi context regions.
12367 *
12368 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020012369 * 0 - successful
James Smartd439d282010-09-29 11:18:45 -040012370 * -ENOMEM - No available memory
12371 * -EIO - The mailbox failed to complete successfully.
James Smart6fb120a2009-05-22 14:52:59 -040012372 **/
12373int
12374lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
12375{
12376 LPFC_MBOXQ_t *mboxq;
12377 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
12378 uint32_t rc = 0;
12379 uint32_t mbox_tmo;
12380 uint32_t shdr_status, shdr_add_status;
12381 union lpfc_sli4_cfg_shdr *shdr;
12382
12383 /* The port is notified of the header region via a mailbox command. */
12384 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12385 if (!mboxq) {
12386 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12387 "2001 Unable to allocate memory for issuing "
12388 "SLI_CONFIG_SPECIAL mailbox command\n");
12389 return -ENOMEM;
12390 }
12391
12392 /* Post all rpi memory regions to the port. */
12393 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
12394 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
12395 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
12396 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
12397 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
James Smartfedd3b72011-02-16 12:39:24 -050012398 sizeof(struct lpfc_sli4_cfg_mhdr),
12399 LPFC_SLI4_MBX_EMBED);
James Smart6fb120a2009-05-22 14:52:59 -040012400 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
12401 hdr_tmpl, rpi_page->page_count);
12402 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
12403 rpi_page->start_rpi);
12404 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
12405 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040012406 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040012407 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
12408 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12409 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12410 if (rc != MBX_TIMEOUT)
12411 mempool_free(mboxq, phba->mbox_mem_pool);
12412 if (shdr_status || shdr_add_status || rc) {
12413 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12414 "2514 POST_RPI_HDR mailbox failed with "
12415 "status x%x add_status x%x, mbx status x%x\n",
12416 shdr_status, shdr_add_status, rc);
12417 rc = -ENXIO;
12418 }
12419 return rc;
12420}
12421
12422/**
12423 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
12424 * @phba: pointer to lpfc hba data structure.
12425 *
12426 * This routine is invoked to post rpi header templates to the
12427 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040012428 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12429 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040012430 *
12431 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020012432 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040012433 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
12434 **/
12435int
12436lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
12437{
12438 int rpi;
12439 uint16_t max_rpi, rpi_base, rpi_limit;
12440 uint16_t rpi_remaining;
12441 struct lpfc_rpi_hdr *rpi_hdr;
12442
12443 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
12444 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
12445 rpi_limit = phba->sli4_hba.next_rpi;
12446
12447 /*
12448 * The valid rpi range is not guaranteed to be zero-based. Start
12449 * the search at the rpi_base as reported by the port.
12450 */
12451 spin_lock_irq(&phba->hbalock);
12452 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
12453 if (rpi >= rpi_limit || rpi < rpi_base)
12454 rpi = LPFC_RPI_ALLOC_ERROR;
12455 else {
12456 set_bit(rpi, phba->sli4_hba.rpi_bmask);
12457 phba->sli4_hba.max_cfg_param.rpi_used++;
12458 phba->sli4_hba.rpi_count++;
12459 }
12460
12461 /*
12462 * Don't try to allocate more rpi header regions if the device limit
12463 * on available rpis max has been exhausted.
12464 */
12465 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
12466 (phba->sli4_hba.rpi_count >= max_rpi)) {
12467 spin_unlock_irq(&phba->hbalock);
12468 return rpi;
12469 }
12470
12471 /*
12472 * If the driver is running low on rpi resources, allocate another
12473 * page now. Note that the next_rpi value is used because
12474 * it represents how many are actually in use whereas max_rpi notes
12475 * how many are supported max by the device.
12476 */
12477 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
12478 phba->sli4_hba.rpi_count;
12479 spin_unlock_irq(&phba->hbalock);
12480 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
12481 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
12482 if (!rpi_hdr) {
12483 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12484 "2002 Error Could not grow rpi "
12485 "count\n");
12486 } else {
12487 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
12488 }
12489 }
12490
12491 return rpi;
12492}
12493
12494/**
12495 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12496 * @phba: pointer to lpfc hba data structure.
12497 *
12498 * This routine is invoked to release an rpi to the pool of
12499 * available rpis maintained by the driver.
12500 **/
12501void
James Smartd7c47992010-06-08 18:31:54 -040012502__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
12503{
12504 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
12505 phba->sli4_hba.rpi_count--;
12506 phba->sli4_hba.max_cfg_param.rpi_used--;
12507 }
12508}
12509
12510/**
12511 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12512 * @phba: pointer to lpfc hba data structure.
12513 *
12514 * This routine is invoked to release an rpi to the pool of
12515 * available rpis maintained by the driver.
12516 **/
12517void
James Smart6fb120a2009-05-22 14:52:59 -040012518lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
12519{
12520 spin_lock_irq(&phba->hbalock);
James Smartd7c47992010-06-08 18:31:54 -040012521 __lpfc_sli4_free_rpi(phba, rpi);
James Smart6fb120a2009-05-22 14:52:59 -040012522 spin_unlock_irq(&phba->hbalock);
12523}
12524
12525/**
12526 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
12527 * @phba: pointer to lpfc hba data structure.
12528 *
12529 * This routine is invoked to remove the memory region that
12530 * provided rpi via a bitmask.
12531 **/
12532void
12533lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
12534{
12535 kfree(phba->sli4_hba.rpi_bmask);
12536}
12537
12538/**
12539 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12540 * @phba: pointer to lpfc hba data structure.
12541 *
12542 * This routine is invoked to remove the memory region that
12543 * provided rpi via a bitmask.
12544 **/
12545int
12546lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
12547{
12548 LPFC_MBOXQ_t *mboxq;
12549 struct lpfc_hba *phba = ndlp->phba;
12550 int rc;
12551
12552 /* The port is notified of the header region via a mailbox command. */
12553 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12554 if (!mboxq)
12555 return -ENOMEM;
12556
12557 /* Post all rpi memory regions to the port. */
12558 lpfc_resume_rpi(mboxq, ndlp);
12559 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12560 if (rc == MBX_NOT_FINISHED) {
12561 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12562 "2010 Resume RPI Mailbox failed "
12563 "status %d, mbxStatus x%x\n", rc,
12564 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
12565 mempool_free(mboxq, phba->mbox_mem_pool);
12566 return -EIO;
12567 }
12568 return 0;
12569}
12570
12571/**
12572 * lpfc_sli4_init_vpi - Initialize a vpi with the port
James Smart76a95d72010-11-20 23:11:48 -050012573 * @vport: Pointer to the vport for which the vpi is being initialized
James Smart6fb120a2009-05-22 14:52:59 -040012574 *
James Smart76a95d72010-11-20 23:11:48 -050012575 * This routine is invoked to activate a vpi with the port.
James Smart6fb120a2009-05-22 14:52:59 -040012576 *
12577 * Returns:
12578 * 0 success
12579 * -Evalue otherwise
12580 **/
12581int
James Smart76a95d72010-11-20 23:11:48 -050012582lpfc_sli4_init_vpi(struct lpfc_vport *vport)
James Smart6fb120a2009-05-22 14:52:59 -040012583{
12584 LPFC_MBOXQ_t *mboxq;
12585 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040012586 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040012587 uint32_t mbox_tmo;
James Smart76a95d72010-11-20 23:11:48 -050012588 struct lpfc_hba *phba = vport->phba;
James Smart6fb120a2009-05-22 14:52:59 -040012589 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12590 if (!mboxq)
12591 return -ENOMEM;
James Smart76a95d72010-11-20 23:11:48 -050012592 lpfc_init_vpi(phba, mboxq, vport->vpi);
James Smart6fb120a2009-05-22 14:52:59 -040012593 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
12594 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040012595 if (rc != MBX_SUCCESS) {
James Smart76a95d72010-11-20 23:11:48 -050012596 lpfc_printf_vlog(vport, KERN_ERR, LOG_SLI,
James Smart6fb120a2009-05-22 14:52:59 -040012597 "2022 INIT VPI Mailbox failed "
12598 "status %d, mbxStatus x%x\n", rc,
12599 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040012600 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040012601 }
James Smart6a9c52c2009-10-02 15:16:51 -040012602 if (rc != MBX_TIMEOUT)
James Smart76a95d72010-11-20 23:11:48 -050012603 mempool_free(mboxq, vport->phba->mbox_mem_pool);
James Smart6a9c52c2009-10-02 15:16:51 -040012604
12605 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040012606}
12607
12608/**
12609 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12610 * @phba: pointer to lpfc hba data structure.
12611 * @mboxq: Pointer to mailbox object.
12612 *
12613 * This routine is invoked to manually add a single FCF record. The caller
12614 * must pass a completely initialized FCF_Record. This routine takes
12615 * care of the nonembedded mailbox operations.
12616 **/
12617static void
12618lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12619{
12620 void *virt_addr;
12621 union lpfc_sli4_cfg_shdr *shdr;
12622 uint32_t shdr_status, shdr_add_status;
12623
12624 virt_addr = mboxq->sge_array->addr[0];
12625 /* The IOCTL status is embedded in the mailbox subheader. */
12626 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
12627 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12628 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12629
12630 if ((shdr_status || shdr_add_status) &&
12631 (shdr_status != STATUS_FCF_IN_USE))
12632 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12633 "2558 ADD_FCF_RECORD mailbox failed with "
12634 "status x%x add_status x%x\n",
12635 shdr_status, shdr_add_status);
12636
12637 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12638}
12639
12640/**
12641 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12642 * @phba: pointer to lpfc hba data structure.
12643 * @fcf_record: pointer to the initialized fcf record to add.
12644 *
12645 * This routine is invoked to manually add a single FCF record. The caller
12646 * must pass a completely initialized FCF_Record. This routine takes
12647 * care of the nonembedded mailbox operations.
12648 **/
12649int
12650lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
12651{
12652 int rc = 0;
12653 LPFC_MBOXQ_t *mboxq;
12654 uint8_t *bytep;
12655 void *virt_addr;
12656 dma_addr_t phys_addr;
12657 struct lpfc_mbx_sge sge;
12658 uint32_t alloc_len, req_len;
12659 uint32_t fcfindex;
12660
12661 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12662 if (!mboxq) {
12663 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12664 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12665 return -ENOMEM;
12666 }
12667
12668 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
12669 sizeof(uint32_t);
12670
12671 /* Allocate DMA memory and set up the non-embedded mailbox command */
12672 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
12673 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
12674 req_len, LPFC_SLI4_MBX_NEMBED);
12675 if (alloc_len < req_len) {
12676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12677 "2523 Allocated DMA memory size (x%x) is "
12678 "less than the requested DMA memory "
12679 "size (x%x)\n", alloc_len, req_len);
12680 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12681 return -ENOMEM;
12682 }
12683
12684 /*
12685 * Get the first SGE entry from the non-embedded DMA memory. This
12686 * routine only uses a single SGE.
12687 */
12688 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
12689 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040012690 virt_addr = mboxq->sge_array->addr[0];
12691 /*
12692 * Configure the FCF record for FCFI 0. This is the driver's
12693 * hardcoded default and gets used in nonFIP mode.
12694 */
12695 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
12696 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
12697 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
12698
12699 /*
12700 * Copy the fcf_index and the FCF Record Data. The data starts after
12701 * the FCoE header plus word10. The data copy needs to be endian
12702 * correct.
12703 */
12704 bytep += sizeof(uint32_t);
12705 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
12706 mboxq->vport = phba->pport;
12707 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
12708 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12709 if (rc == MBX_NOT_FINISHED) {
12710 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12711 "2515 ADD_FCF_RECORD mailbox failed with "
12712 "status 0x%x\n", rc);
12713 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12714 rc = -EIO;
12715 } else
12716 rc = 0;
12717
12718 return rc;
12719}
12720
12721/**
12722 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12723 * @phba: pointer to lpfc hba data structure.
12724 * @fcf_record: pointer to the fcf record to write the default data.
12725 * @fcf_index: FCF table entry index.
12726 *
12727 * This routine is invoked to build the driver's default FCF record. The
12728 * values used are hardcoded. This routine handles memory initialization.
12729 *
12730 **/
12731void
12732lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
12733 struct fcf_record *fcf_record,
12734 uint16_t fcf_index)
12735{
12736 memset(fcf_record, 0, sizeof(struct fcf_record));
12737 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
12738 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
12739 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
12740 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
12741 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
12742 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
12743 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
12744 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
12745 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
12746 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
12747 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
12748 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
12749 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040012750 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040012751 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
12752 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
12753 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
12754 /* Set the VLAN bit map */
12755 if (phba->valid_vlan) {
12756 fcf_record->vlan_bitmap[phba->vlan_id / 8]
12757 = 1 << (phba->vlan_id % 8);
12758 }
12759}
12760
12761/**
James Smart0c9ab6f2010-02-26 14:15:57 -050012762 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
James Smart6fb120a2009-05-22 14:52:59 -040012763 * @phba: pointer to lpfc hba data structure.
12764 * @fcf_index: FCF table entry offset.
12765 *
James Smart0c9ab6f2010-02-26 14:15:57 -050012766 * This routine is invoked to scan the entire FCF table by reading FCF
12767 * record and processing it one at a time starting from the @fcf_index
12768 * for initial FCF discovery or fast FCF failover rediscovery.
12769 *
12770 * Return 0 if the mailbox command is submitted sucessfully, none 0
12771 * otherwise.
James Smart6fb120a2009-05-22 14:52:59 -040012772 **/
12773int
James Smart0c9ab6f2010-02-26 14:15:57 -050012774lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
James Smart6fb120a2009-05-22 14:52:59 -040012775{
12776 int rc = 0, error;
12777 LPFC_MBOXQ_t *mboxq;
James Smart6fb120a2009-05-22 14:52:59 -040012778
James Smart32b97932009-07-19 10:01:21 -040012779 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040012780 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12781 if (!mboxq) {
12782 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12783 "2000 Failed to allocate mbox for "
12784 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040012785 error = -ENOMEM;
James Smart0c9ab6f2010-02-26 14:15:57 -050012786 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040012787 }
James Smartecfd03c2010-02-12 14:41:27 -050012788 /* Construct the read FCF record mailbox command */
James Smart0c9ab6f2010-02-26 14:15:57 -050012789 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
James Smartecfd03c2010-02-12 14:41:27 -050012790 if (rc) {
12791 error = -EINVAL;
James Smart0c9ab6f2010-02-26 14:15:57 -050012792 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040012793 }
James Smartecfd03c2010-02-12 14:41:27 -050012794 /* Issue the mailbox command asynchronously */
James Smart6fb120a2009-05-22 14:52:59 -040012795 mboxq->vport = phba->pport;
James Smart0c9ab6f2010-02-26 14:15:57 -050012796 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
James Smarta93ff372010-10-22 11:06:08 -040012797
12798 spin_lock_irq(&phba->hbalock);
12799 phba->hba_flag |= FCF_TS_INPROG;
12800 spin_unlock_irq(&phba->hbalock);
12801
James Smart6fb120a2009-05-22 14:52:59 -040012802 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
James Smartecfd03c2010-02-12 14:41:27 -050012803 if (rc == MBX_NOT_FINISHED)
James Smart6fb120a2009-05-22 14:52:59 -040012804 error = -EIO;
James Smartecfd03c2010-02-12 14:41:27 -050012805 else {
James Smart38b92ef2010-08-04 16:11:39 -040012806 /* Reset eligible FCF count for new scan */
12807 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
James Smart999d8132010-03-15 11:24:56 -040012808 phba->fcf.eligible_fcf_cnt = 0;
James Smart6fb120a2009-05-22 14:52:59 -040012809 error = 0;
James Smart32b97932009-07-19 10:01:21 -040012810 }
James Smart0c9ab6f2010-02-26 14:15:57 -050012811fail_fcf_scan:
James Smart4d9ab992009-10-02 15:16:39 -040012812 if (error) {
12813 if (mboxq)
12814 lpfc_sli4_mbox_cmd_free(phba, mboxq);
James Smarta93ff372010-10-22 11:06:08 -040012815 /* FCF scan failed, clear FCF_TS_INPROG flag */
James Smart4d9ab992009-10-02 15:16:39 -040012816 spin_lock_irq(&phba->hbalock);
James Smarta93ff372010-10-22 11:06:08 -040012817 phba->hba_flag &= ~FCF_TS_INPROG;
James Smart4d9ab992009-10-02 15:16:39 -040012818 spin_unlock_irq(&phba->hbalock);
12819 }
James Smart6fb120a2009-05-22 14:52:59 -040012820 return error;
12821}
James Smarta0c87cb2009-07-19 10:01:10 -040012822
12823/**
James Smarta93ff372010-10-22 11:06:08 -040012824 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
James Smart0c9ab6f2010-02-26 14:15:57 -050012825 * @phba: pointer to lpfc hba data structure.
12826 * @fcf_index: FCF table entry offset.
12827 *
12828 * This routine is invoked to read an FCF record indicated by @fcf_index
James Smarta93ff372010-10-22 11:06:08 -040012829 * and to use it for FLOGI roundrobin FCF failover.
James Smart0c9ab6f2010-02-26 14:15:57 -050012830 *
12831 * Return 0 if the mailbox command is submitted sucessfully, none 0
12832 * otherwise.
12833 **/
12834int
12835lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12836{
12837 int rc = 0, error;
12838 LPFC_MBOXQ_t *mboxq;
12839
12840 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12841 if (!mboxq) {
12842 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12843 "2763 Failed to allocate mbox for "
12844 "READ_FCF cmd\n");
12845 error = -ENOMEM;
12846 goto fail_fcf_read;
12847 }
12848 /* Construct the read FCF record mailbox command */
12849 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12850 if (rc) {
12851 error = -EINVAL;
12852 goto fail_fcf_read;
12853 }
12854 /* Issue the mailbox command asynchronously */
12855 mboxq->vport = phba->pport;
12856 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
12857 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12858 if (rc == MBX_NOT_FINISHED)
12859 error = -EIO;
12860 else
12861 error = 0;
12862
12863fail_fcf_read:
12864 if (error && mboxq)
12865 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12866 return error;
12867}
12868
12869/**
12870 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12871 * @phba: pointer to lpfc hba data structure.
12872 * @fcf_index: FCF table entry offset.
12873 *
12874 * This routine is invoked to read an FCF record indicated by @fcf_index to
James Smarta93ff372010-10-22 11:06:08 -040012875 * determine whether it's eligible for FLOGI roundrobin failover list.
James Smart0c9ab6f2010-02-26 14:15:57 -050012876 *
12877 * Return 0 if the mailbox command is submitted sucessfully, none 0
12878 * otherwise.
12879 **/
12880int
12881lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12882{
12883 int rc = 0, error;
12884 LPFC_MBOXQ_t *mboxq;
12885
12886 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12887 if (!mboxq) {
12888 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12889 "2758 Failed to allocate mbox for "
12890 "READ_FCF cmd\n");
12891 error = -ENOMEM;
12892 goto fail_fcf_read;
12893 }
12894 /* Construct the read FCF record mailbox command */
12895 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12896 if (rc) {
12897 error = -EINVAL;
12898 goto fail_fcf_read;
12899 }
12900 /* Issue the mailbox command asynchronously */
12901 mboxq->vport = phba->pport;
12902 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
12903 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12904 if (rc == MBX_NOT_FINISHED)
12905 error = -EIO;
12906 else
12907 error = 0;
12908
12909fail_fcf_read:
12910 if (error && mboxq)
12911 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12912 return error;
12913}
12914
12915/**
12916 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12917 * @phba: pointer to lpfc hba data structure.
12918 *
12919 * This routine is to get the next eligible FCF record index in a round
12920 * robin fashion. If the next eligible FCF record index equals to the
James Smarta93ff372010-10-22 11:06:08 -040012921 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
James Smart0c9ab6f2010-02-26 14:15:57 -050012922 * shall be returned, otherwise, the next eligible FCF record's index
12923 * shall be returned.
12924 **/
12925uint16_t
12926lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
12927{
12928 uint16_t next_fcf_index;
12929
James Smart3804dc82010-07-14 15:31:37 -040012930 /* Search start from next bit of currently registered FCF index */
12931 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
12932 LPFC_SLI4_FCF_TBL_INDX_MAX;
James Smart0c9ab6f2010-02-26 14:15:57 -050012933 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12934 LPFC_SLI4_FCF_TBL_INDX_MAX,
James Smart3804dc82010-07-14 15:31:37 -040012935 next_fcf_index);
12936
James Smart0c9ab6f2010-02-26 14:15:57 -050012937 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12938 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
12939 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12940 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
James Smart0c9ab6f2010-02-26 14:15:57 -050012941
James Smart3804dc82010-07-14 15:31:37 -040012942 /* Check roundrobin failover list empty condition */
12943 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12944 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
12945 "2844 No roundrobin failover FCF available\n");
12946 return LPFC_FCOE_FCF_NEXT_NONE;
12947 }
12948
James Smart3804dc82010-07-14 15:31:37 -040012949 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040012950 "2845 Get next roundrobin failover FCF (x%x)\n",
12951 next_fcf_index);
12952
James Smart0c9ab6f2010-02-26 14:15:57 -050012953 return next_fcf_index;
12954}
12955
12956/**
12957 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12958 * @phba: pointer to lpfc hba data structure.
12959 *
12960 * This routine sets the FCF record index in to the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040012961 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050012962 * does not go beyond the range of the driver allocated bmask dimension
12963 * before setting the bit.
12964 *
12965 * Returns 0 if the index bit successfully set, otherwise, it returns
12966 * -EINVAL.
12967 **/
12968int
12969lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
12970{
12971 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12972 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040012973 "2610 FCF (x%x) reached driver's book "
12974 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050012975 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
12976 return -EINVAL;
12977 }
12978 /* Set the eligible FCF record index bmask */
12979 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
12980
James Smart3804dc82010-07-14 15:31:37 -040012981 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040012982 "2790 Set FCF (x%x) to roundrobin FCF failover "
James Smart3804dc82010-07-14 15:31:37 -040012983 "bmask\n", fcf_index);
12984
James Smart0c9ab6f2010-02-26 14:15:57 -050012985 return 0;
12986}
12987
12988/**
James Smart3804dc82010-07-14 15:31:37 -040012989 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
James Smart0c9ab6f2010-02-26 14:15:57 -050012990 * @phba: pointer to lpfc hba data structure.
12991 *
12992 * This routine clears the FCF record index from the eligible bmask for
James Smarta93ff372010-10-22 11:06:08 -040012993 * roundrobin failover search. It checks to make sure that the index
James Smart0c9ab6f2010-02-26 14:15:57 -050012994 * does not go beyond the range of the driver allocated bmask dimension
12995 * before clearing the bit.
12996 **/
12997void
12998lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
12999{
13000 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
13001 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040013002 "2762 FCF (x%x) reached driver's book "
13003 "keeping dimension:x%x\n",
James Smart0c9ab6f2010-02-26 14:15:57 -050013004 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
13005 return;
13006 }
13007 /* Clear the eligible FCF record index bmask */
13008 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
James Smart3804dc82010-07-14 15:31:37 -040013009
13010 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040013011 "2791 Clear FCF (x%x) from roundrobin failover "
James Smart3804dc82010-07-14 15:31:37 -040013012 "bmask\n", fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050013013}
13014
13015/**
James Smartecfd03c2010-02-12 14:41:27 -050013016 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
13017 * @phba: pointer to lpfc hba data structure.
13018 *
13019 * This routine is the completion routine for the rediscover FCF table mailbox
13020 * command. If the mailbox command returned failure, it will try to stop the
13021 * FCF rediscover wait timer.
13022 **/
13023void
13024lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
13025{
13026 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
13027 uint32_t shdr_status, shdr_add_status;
13028
13029 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
13030
13031 shdr_status = bf_get(lpfc_mbox_hdr_status,
13032 &redisc_fcf->header.cfg_shdr.response);
13033 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
13034 &redisc_fcf->header.cfg_shdr.response);
13035 if (shdr_status || shdr_add_status) {
James Smart0c9ab6f2010-02-26 14:15:57 -050013036 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smartecfd03c2010-02-12 14:41:27 -050013037 "2746 Requesting for FCF rediscovery failed "
13038 "status x%x add_status x%x\n",
13039 shdr_status, shdr_add_status);
James Smart0c9ab6f2010-02-26 14:15:57 -050013040 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
James Smartfc2b9892010-02-26 14:15:29 -050013041 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050013042 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050013043 spin_unlock_irq(&phba->hbalock);
13044 /*
13045 * CVL event triggered FCF rediscover request failed,
13046 * last resort to re-try current registered FCF entry.
13047 */
13048 lpfc_retry_pport_discovery(phba);
13049 } else {
13050 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050013051 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050013052 spin_unlock_irq(&phba->hbalock);
13053 /*
13054 * DEAD FCF event triggered FCF rediscover request
13055 * failed, last resort to fail over as a link down
13056 * to FCF registration.
13057 */
13058 lpfc_sli4_fcf_dead_failthrough(phba);
13059 }
James Smart0c9ab6f2010-02-26 14:15:57 -050013060 } else {
13061 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
James Smarta93ff372010-10-22 11:06:08 -040013062 "2775 Start FCF rediscover quiescent timer\n");
James Smartecfd03c2010-02-12 14:41:27 -050013063 /*
13064 * Start FCF rediscovery wait timer for pending FCF
13065 * before rescan FCF record table.
13066 */
13067 lpfc_fcf_redisc_wait_start_timer(phba);
James Smart0c9ab6f2010-02-26 14:15:57 -050013068 }
James Smartecfd03c2010-02-12 14:41:27 -050013069
13070 mempool_free(mbox, phba->mbox_mem_pool);
13071}
13072
13073/**
James Smart3804dc82010-07-14 15:31:37 -040013074 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
James Smartecfd03c2010-02-12 14:41:27 -050013075 * @phba: pointer to lpfc hba data structure.
13076 *
13077 * This routine is invoked to request for rediscovery of the entire FCF table
13078 * by the port.
13079 **/
13080int
13081lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
13082{
13083 LPFC_MBOXQ_t *mbox;
13084 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
13085 int rc, length;
13086
James Smart0c9ab6f2010-02-26 14:15:57 -050013087 /* Cancel retry delay timers to all vports before FCF rediscover */
13088 lpfc_cancel_all_vport_retry_delay_timer(phba);
13089
James Smartecfd03c2010-02-12 14:41:27 -050013090 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13091 if (!mbox) {
13092 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13093 "2745 Failed to allocate mbox for "
13094 "requesting FCF rediscover.\n");
13095 return -ENOMEM;
13096 }
13097
13098 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
13099 sizeof(struct lpfc_sli4_cfg_mhdr));
13100 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
13101 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
13102 length, LPFC_SLI4_MBX_EMBED);
13103
13104 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
13105 /* Set count to 0 for invalidating the entire FCF database */
13106 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
13107
13108 /* Issue the mailbox command asynchronously */
13109 mbox->vport = phba->pport;
13110 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
13111 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
13112
13113 if (rc == MBX_NOT_FINISHED) {
13114 mempool_free(mbox, phba->mbox_mem_pool);
13115 return -EIO;
13116 }
13117 return 0;
13118}
13119
13120/**
James Smartfc2b9892010-02-26 14:15:29 -050013121 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
13122 * @phba: pointer to lpfc hba data structure.
13123 *
13124 * This function is the failover routine as a last resort to the FCF DEAD
13125 * event when driver failed to perform fast FCF failover.
13126 **/
13127void
13128lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
13129{
13130 uint32_t link_state;
13131
13132 /*
13133 * Last resort as FCF DEAD event failover will treat this as
13134 * a link down, but save the link state because we don't want
13135 * it to be changed to Link Down unless it is already down.
13136 */
13137 link_state = phba->link_state;
13138 lpfc_linkdown(phba);
13139 phba->link_state = link_state;
13140
13141 /* Unregister FCF if no devices connected to it */
13142 lpfc_unregister_unused_fcf(phba);
13143}
13144
13145/**
James Smarta0c87cb2009-07-19 10:01:10 -040013146 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
13147 * @phba: pointer to lpfc hba data structure.
13148 *
13149 * This function read region 23 and parse TLV for port status to
13150 * decide if the user disaled the port. If the TLV indicates the
13151 * port is disabled, the hba_flag is set accordingly.
13152 **/
13153void
13154lpfc_sli_read_link_ste(struct lpfc_hba *phba)
13155{
13156 LPFC_MBOXQ_t *pmb = NULL;
13157 MAILBOX_t *mb;
13158 uint8_t *rgn23_data = NULL;
13159 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
13160 int rc;
13161
13162 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
13163 if (!pmb) {
13164 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13165 "2600 lpfc_sli_read_serdes_param failed to"
13166 " allocate mailbox memory\n");
13167 goto out;
13168 }
13169 mb = &pmb->u.mb;
13170
13171 /* Get adapter Region 23 data */
13172 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
13173 if (!rgn23_data)
13174 goto out;
13175
13176 do {
13177 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
13178 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
13179
13180 if (rc != MBX_SUCCESS) {
13181 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
13182 "2601 lpfc_sli_read_link_ste failed to"
13183 " read config region 23 rc 0x%x Status 0x%x\n",
13184 rc, mb->mbxStatus);
13185 mb->un.varDmp.word_cnt = 0;
13186 }
13187 /*
13188 * dump mem may return a zero when finished or we got a
13189 * mailbox error, either way we are done.
13190 */
13191 if (mb->un.varDmp.word_cnt == 0)
13192 break;
13193 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
13194 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
13195
13196 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
13197 rgn23_data + offset,
13198 mb->un.varDmp.word_cnt);
13199 offset += mb->un.varDmp.word_cnt;
13200 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
13201
13202 data_size = offset;
13203 offset = 0;
13204
13205 if (!data_size)
13206 goto out;
13207
13208 /* Check the region signature first */
13209 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
13210 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13211 "2619 Config region 23 has bad signature\n");
13212 goto out;
13213 }
13214 offset += 4;
13215
13216 /* Check the data structure version */
13217 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
13218 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
13219 "2620 Config region 23 has bad version\n");
13220 goto out;
13221 }
13222 offset += 4;
13223
13224 /* Parse TLV entries in the region */
13225 while (offset < data_size) {
13226 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
13227 break;
13228 /*
13229 * If the TLV is not driver specific TLV or driver id is
13230 * not linux driver id, skip the record.
13231 */
13232 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
13233 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
13234 (rgn23_data[offset + 3] != 0)) {
13235 offset += rgn23_data[offset + 1] * 4 + 4;
13236 continue;
13237 }
13238
13239 /* Driver found a driver specific TLV in the config region */
13240 sub_tlv_len = rgn23_data[offset + 1] * 4;
13241 offset += 4;
13242 tlv_offset = 0;
13243
13244 /*
13245 * Search for configured port state sub-TLV.
13246 */
13247 while ((offset < data_size) &&
13248 (tlv_offset < sub_tlv_len)) {
13249 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
13250 offset += 4;
13251 tlv_offset += 4;
13252 break;
13253 }
13254 if (rgn23_data[offset] != PORT_STE_TYPE) {
13255 offset += rgn23_data[offset + 1] * 4 + 4;
13256 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
13257 continue;
13258 }
13259
13260 /* This HBA contains PORT_STE configured */
13261 if (!rgn23_data[offset + 2])
13262 phba->hba_flag |= LINK_DISABLED;
13263
13264 goto out;
13265 }
13266 }
13267out:
13268 if (pmb)
13269 mempool_free(pmb, phba->mbox_mem_pool);
13270 kfree(rgn23_data);
13271 return;
13272}
James Smart695a8142010-01-26 23:08:03 -050013273
13274/**
13275 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
13276 * @vport: pointer to vport data structure.
13277 *
13278 * This function iterate through the mailboxq and clean up all REG_LOGIN
13279 * and REG_VPI mailbox commands associated with the vport. This function
13280 * is called when driver want to restart discovery of the vport due to
13281 * a Clear Virtual Link event.
13282 **/
13283void
13284lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
13285{
13286 struct lpfc_hba *phba = vport->phba;
13287 LPFC_MBOXQ_t *mb, *nextmb;
13288 struct lpfc_dmabuf *mp;
James Smart78730cf2010-04-06 15:06:30 -040013289 struct lpfc_nodelist *ndlp;
James Smartd439d282010-09-29 11:18:45 -040013290 struct lpfc_nodelist *act_mbx_ndlp = NULL;
James Smart589a52d2010-07-14 15:30:54 -040013291 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
James Smartd439d282010-09-29 11:18:45 -040013292 LIST_HEAD(mbox_cmd_list);
James Smart63e801c2010-11-20 23:14:19 -050013293 uint8_t restart_loop;
James Smart695a8142010-01-26 23:08:03 -050013294
James Smartd439d282010-09-29 11:18:45 -040013295 /* Clean up internally queued mailbox commands with the vport */
James Smart695a8142010-01-26 23:08:03 -050013296 spin_lock_irq(&phba->hbalock);
13297 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
13298 if (mb->vport != vport)
13299 continue;
13300
13301 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
13302 (mb->u.mb.mbxCommand != MBX_REG_VPI))
13303 continue;
13304
James Smartd439d282010-09-29 11:18:45 -040013305 list_del(&mb->list);
13306 list_add_tail(&mb->list, &mbox_cmd_list);
13307 }
13308 /* Clean up active mailbox command with the vport */
13309 mb = phba->sli.mbox_active;
13310 if (mb && (mb->vport == vport)) {
13311 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
13312 (mb->u.mb.mbxCommand == MBX_REG_VPI))
13313 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13314 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
13315 act_mbx_ndlp = (struct lpfc_nodelist *)mb->context2;
13316 /* Put reference count for delayed processing */
13317 act_mbx_ndlp = lpfc_nlp_get(act_mbx_ndlp);
13318 /* Unregister the RPI when mailbox complete */
13319 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
13320 }
13321 }
James Smart63e801c2010-11-20 23:14:19 -050013322 /* Cleanup any mailbox completions which are not yet processed */
13323 do {
13324 restart_loop = 0;
13325 list_for_each_entry(mb, &phba->sli.mboxq_cmpl, list) {
13326 /*
13327 * If this mailox is already processed or it is
13328 * for another vport ignore it.
13329 */
13330 if ((mb->vport != vport) ||
13331 (mb->mbox_flag & LPFC_MBX_IMED_UNREG))
13332 continue;
13333
13334 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
13335 (mb->u.mb.mbxCommand != MBX_REG_VPI))
13336 continue;
13337
13338 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
13339 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
13340 ndlp = (struct lpfc_nodelist *)mb->context2;
13341 /* Unregister the RPI when mailbox complete */
13342 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
13343 restart_loop = 1;
13344 spin_unlock_irq(&phba->hbalock);
13345 spin_lock(shost->host_lock);
13346 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
13347 spin_unlock(shost->host_lock);
13348 spin_lock_irq(&phba->hbalock);
13349 break;
13350 }
13351 }
13352 } while (restart_loop);
13353
James Smartd439d282010-09-29 11:18:45 -040013354 spin_unlock_irq(&phba->hbalock);
13355
13356 /* Release the cleaned-up mailbox commands */
13357 while (!list_empty(&mbox_cmd_list)) {
13358 list_remove_head(&mbox_cmd_list, mb, LPFC_MBOXQ_t, list);
James Smart695a8142010-01-26 23:08:03 -050013359 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
13360 mp = (struct lpfc_dmabuf *) (mb->context1);
13361 if (mp) {
13362 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
13363 kfree(mp);
13364 }
James Smart78730cf2010-04-06 15:06:30 -040013365 ndlp = (struct lpfc_nodelist *) mb->context2;
James Smartd439d282010-09-29 11:18:45 -040013366 mb->context2 = NULL;
James Smart78730cf2010-04-06 15:06:30 -040013367 if (ndlp) {
Dan Carpenterec21b3b2010-08-08 00:15:17 +020013368 spin_lock(shost->host_lock);
James Smart589a52d2010-07-14 15:30:54 -040013369 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
Dan Carpenterec21b3b2010-08-08 00:15:17 +020013370 spin_unlock(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040013371 lpfc_nlp_put(ndlp);
James Smart78730cf2010-04-06 15:06:30 -040013372 }
James Smart695a8142010-01-26 23:08:03 -050013373 }
James Smart695a8142010-01-26 23:08:03 -050013374 mempool_free(mb, phba->mbox_mem_pool);
13375 }
James Smartd439d282010-09-29 11:18:45 -040013376
13377 /* Release the ndlp with the cleaned-up active mailbox command */
13378 if (act_mbx_ndlp) {
13379 spin_lock(shost->host_lock);
13380 act_mbx_ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
13381 spin_unlock(shost->host_lock);
13382 lpfc_nlp_put(act_mbx_ndlp);
James Smart695a8142010-01-26 23:08:03 -050013383 }
James Smart695a8142010-01-26 23:08:03 -050013384}
13385
James Smart2a9bf3d2010-06-07 15:24:45 -040013386/**
13387 * lpfc_drain_txq - Drain the txq
13388 * @phba: Pointer to HBA context object.
13389 *
13390 * This function attempt to submit IOCBs on the txq
13391 * to the adapter. For SLI4 adapters, the txq contains
13392 * ELS IOCBs that have been deferred because the there
13393 * are no SGLs. This congestion can occur with large
13394 * vport counts during node discovery.
13395 **/
13396
13397uint32_t
13398lpfc_drain_txq(struct lpfc_hba *phba)
13399{
13400 LIST_HEAD(completions);
13401 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
13402 struct lpfc_iocbq *piocbq = 0;
13403 unsigned long iflags = 0;
13404 char *fail_msg = NULL;
13405 struct lpfc_sglq *sglq;
13406 union lpfc_wqe wqe;
13407
13408 spin_lock_irqsave(&phba->hbalock, iflags);
13409 if (pring->txq_cnt > pring->txq_max)
13410 pring->txq_max = pring->txq_cnt;
13411
13412 spin_unlock_irqrestore(&phba->hbalock, iflags);
13413
13414 while (pring->txq_cnt) {
13415 spin_lock_irqsave(&phba->hbalock, iflags);
13416
James Smart19ca7602010-11-20 23:11:55 -050013417 piocbq = lpfc_sli_ringtx_get(phba, pring);
13418 sglq = __lpfc_sli_get_sglq(phba, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040013419 if (!sglq) {
James Smart19ca7602010-11-20 23:11:55 -050013420 __lpfc_sli_ringtx_put(phba, pring, piocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -040013421 spin_unlock_irqrestore(&phba->hbalock, iflags);
13422 break;
13423 } else {
James Smart2a9bf3d2010-06-07 15:24:45 -040013424 if (!piocbq) {
13425 /* The txq_cnt out of sync. This should
13426 * never happen
13427 */
13428 sglq = __lpfc_clear_active_sglq(phba,
13429 sglq->sli4_xritag);
13430 spin_unlock_irqrestore(&phba->hbalock, iflags);
13431 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13432 "2823 txq empty and txq_cnt is %d\n ",
13433 pring->txq_cnt);
13434 break;
13435 }
13436 }
13437
13438 /* The xri and iocb resources secured,
13439 * attempt to issue request
13440 */
13441 piocbq->sli4_xritag = sglq->sli4_xritag;
13442 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
13443 fail_msg = "to convert bpl to sgl";
13444 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
13445 fail_msg = "to convert iocb to wqe";
13446 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
13447 fail_msg = " - Wq is full";
13448 else
13449 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
13450
13451 if (fail_msg) {
13452 /* Failed means we can't issue and need to cancel */
13453 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
13454 "2822 IOCB failed %s iotag 0x%x "
13455 "xri 0x%x\n",
13456 fail_msg,
13457 piocbq->iotag, piocbq->sli4_xritag);
13458 list_add_tail(&piocbq->list, &completions);
13459 }
13460 spin_unlock_irqrestore(&phba->hbalock, iflags);
13461 }
13462
James Smart2a9bf3d2010-06-07 15:24:45 -040013463 /* Cancel all the IOCBs that cannot be issued */
13464 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
13465 IOERR_SLI_ABORTED);
13466
13467 return pring->txq_cnt;
13468}