blob: fb8905f893f53ffcdd2cf71c79a5d04b87d9cd9c [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))
98 bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
99
100 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
101
102 /* Update the host index before invoking device */
103 host_index = q->host_index;
104 q->host_index = ((q->host_index + 1) % q->entry_count);
105
106 /* Ring Doorbell */
107 doorbell.word0 = 0;
108 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
109 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
110 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
111 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
112 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
113
114 return 0;
115}
116
117/**
118 * lpfc_sli4_wq_release - Updates internal hba index for WQ
119 * @q: The Work Queue to operate on.
120 * @index: The index to advance the hba index to.
121 *
122 * This routine will update the HBA index of a queue to reflect consumption of
123 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
124 * an entry the host calls this function to update the queue's internal
125 * pointers. This routine returns the number of entries that were consumed by
126 * the HBA.
127 **/
128static uint32_t
129lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
130{
131 uint32_t released = 0;
132
133 if (q->hba_index == index)
134 return 0;
135 do {
136 q->hba_index = ((q->hba_index + 1) % q->entry_count);
137 released++;
138 } while (q->hba_index != index);
139 return released;
140}
141
142/**
143 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
144 * @q: The Mailbox Queue to operate on.
145 * @wqe: The Mailbox Queue Entry to put on the Work queue.
146 *
147 * This routine will copy the contents of @mqe to the next available entry on
148 * the @q. This function will then ring the Work Queue Doorbell to signal the
149 * HBA to start processing the Work Queue Entry. This function returns 0 if
150 * successful. If no entries are available on @q then this function will return
151 * -ENOMEM.
152 * The caller is expected to hold the hbalock when calling this routine.
153 **/
154static uint32_t
155lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
156{
157 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
158 struct lpfc_register doorbell;
159 uint32_t host_index;
160
161 /* If the host has not yet processed the next entry then we are done */
162 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
163 return -ENOMEM;
164 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
165 /* Save off the mailbox pointer for completion */
166 q->phba->mbox = (MAILBOX_t *)temp_mqe;
167
168 /* Update the host index before invoking device */
169 host_index = q->host_index;
170 q->host_index = ((q->host_index + 1) % q->entry_count);
171
172 /* Ring Doorbell */
173 doorbell.word0 = 0;
174 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
175 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
176 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
177 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
178 return 0;
179}
180
181/**
182 * lpfc_sli4_mq_release - Updates internal hba index for MQ
183 * @q: The Mailbox Queue to operate on.
184 *
185 * This routine will update the HBA index of a queue to reflect consumption of
186 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
187 * an entry the host calls this function to update the queue's internal
188 * pointers. This routine returns the number of entries that were consumed by
189 * the HBA.
190 **/
191static uint32_t
192lpfc_sli4_mq_release(struct lpfc_queue *q)
193{
194 /* Clear the mailbox pointer for completion */
195 q->phba->mbox = NULL;
196 q->hba_index = ((q->hba_index + 1) % q->entry_count);
197 return 1;
198}
199
200/**
201 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
202 * @q: The Event Queue to get the first valid EQE from
203 *
204 * This routine will get the first valid Event Queue Entry from @q, update
205 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
206 * the Queue (no more work to do), or the Queue is full of EQEs that have been
207 * processed, but not popped back to the HBA then this routine will return NULL.
208 **/
209static struct lpfc_eqe *
210lpfc_sli4_eq_get(struct lpfc_queue *q)
211{
212 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
213
214 /* If the next EQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400215 if (!bf_get_le32(lpfc_eqe_valid, eqe))
James Smart4f774512009-05-22 14:52:35 -0400216 return NULL;
217 /* If the host has not yet processed the next entry then we are done */
218 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
219 return NULL;
220
221 q->hba_index = ((q->hba_index + 1) % q->entry_count);
222 return eqe;
223}
224
225/**
226 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
227 * @q: The Event Queue that the host has completed processing for.
228 * @arm: Indicates whether the host wants to arms this CQ.
229 *
230 * This routine will mark all Event Queue Entries on @q, from the last
231 * known completed entry to the last entry that was processed, as completed
232 * by clearing the valid bit for each completion queue entry. Then it will
233 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
234 * The internal host index in the @q will be updated by this routine to indicate
235 * that the host has finished processing the entries. The @arm parameter
236 * indicates that the queue should be rearmed when ringing the doorbell.
237 *
238 * This function will return the number of EQEs that were popped.
239 **/
240uint32_t
241lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
242{
243 uint32_t released = 0;
244 struct lpfc_eqe *temp_eqe;
245 struct lpfc_register doorbell;
246
247 /* while there are valid entries */
248 while (q->hba_index != q->host_index) {
249 temp_eqe = q->qe[q->host_index].eqe;
James Smartcb5172e2010-03-15 11:25:07 -0400250 bf_set_le32(lpfc_eqe_valid, temp_eqe, 0);
James Smart4f774512009-05-22 14:52:35 -0400251 released++;
252 q->host_index = ((q->host_index + 1) % q->entry_count);
253 }
254 if (unlikely(released == 0 && !arm))
255 return 0;
256
257 /* ring doorbell for number popped */
258 doorbell.word0 = 0;
259 if (arm) {
260 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
261 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
262 }
263 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
264 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
265 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
266 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
James Smarta747c9c2009-11-18 15:41:10 -0500267 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
268 if ((q->phba->intr_type == INTx) && (arm == LPFC_QUEUE_REARM))
269 readl(q->phba->sli4_hba.EQCQDBregaddr);
James Smart4f774512009-05-22 14:52:35 -0400270 return released;
271}
272
273/**
274 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
275 * @q: The Completion Queue to get the first valid CQE from
276 *
277 * This routine will get the first valid Completion Queue Entry from @q, update
278 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
279 * the Queue (no more work to do), or the Queue is full of CQEs that have been
280 * processed, but not popped back to the HBA then this routine will return NULL.
281 **/
282static struct lpfc_cqe *
283lpfc_sli4_cq_get(struct lpfc_queue *q)
284{
285 struct lpfc_cqe *cqe;
286
287 /* If the next CQE is not valid then we are done */
James Smartcb5172e2010-03-15 11:25:07 -0400288 if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
James Smart4f774512009-05-22 14:52:35 -0400289 return NULL;
290 /* If the host has not yet processed the next entry then we are done */
291 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
292 return NULL;
293
294 cqe = q->qe[q->hba_index].cqe;
295 q->hba_index = ((q->hba_index + 1) % q->entry_count);
296 return cqe;
297}
298
299/**
300 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
301 * @q: The Completion Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
303 *
304 * This routine will mark all Completion queue entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
311 *
312 * This function will return the number of CQEs that were released.
313 **/
314uint32_t
315lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
316{
317 uint32_t released = 0;
318 struct lpfc_cqe *temp_qe;
319 struct lpfc_register doorbell;
320
321 /* while there are valid entries */
322 while (q->hba_index != q->host_index) {
323 temp_qe = q->qe[q->host_index].cqe;
James Smartcb5172e2010-03-15 11:25:07 -0400324 bf_set_le32(lpfc_cqe_valid, temp_qe, 0);
James Smart4f774512009-05-22 14:52:35 -0400325 released++;
326 q->host_index = ((q->host_index + 1) % q->entry_count);
327 }
328 if (unlikely(released == 0 && !arm))
329 return 0;
330
331 /* ring doorbell for number popped */
332 doorbell.word0 = 0;
333 if (arm)
334 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
335 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
336 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
337 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
338 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
339 return released;
340}
341
342/**
343 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
344 * @q: The Header Receive Queue to operate on.
345 * @wqe: The Receive Queue Entry to put on the Receive queue.
346 *
347 * This routine will copy the contents of @wqe to the next available entry on
348 * the @q. This function will then ring the Receive Queue Doorbell to signal the
349 * HBA to start processing the Receive Queue Entry. This function returns the
350 * index that the rqe was copied to if successful. If no entries are available
351 * on @q then this function will return -ENOMEM.
352 * The caller is expected to hold the hbalock when calling this routine.
353 **/
354static int
355lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
356 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
357{
358 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
359 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
360 struct lpfc_register doorbell;
361 int put_index = hq->host_index;
362
363 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
364 return -EINVAL;
365 if (hq->host_index != dq->host_index)
366 return -EINVAL;
367 /* If the host has not yet processed the next entry then we are done */
368 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
369 return -EBUSY;
370 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
371 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
372
373 /* Update the host index to point to the next slot */
374 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
375 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
376
377 /* Ring The Header Receive Queue Doorbell */
378 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
379 doorbell.word0 = 0;
380 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
381 LPFC_RQ_POST_BATCH);
382 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
383 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
384 }
385 return put_index;
386}
387
388/**
389 * lpfc_sli4_rq_release - Updates internal hba index for RQ
390 * @q: The Header Receive Queue to operate on.
391 *
392 * This routine will update the HBA index of a queue to reflect consumption of
393 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
394 * consumed an entry the host calls this function to update the queue's
395 * internal pointers. This routine returns the number of entries that were
396 * consumed by the HBA.
397 **/
398static uint32_t
399lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
400{
401 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
402 return 0;
403 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
404 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
405 return 1;
406}
407
James Smarte59058c2008-08-24 21:49:00 -0400408/**
James Smart3621a712009-04-06 18:47:14 -0400409 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400410 * @phba: Pointer to HBA context object.
411 * @pring: Pointer to driver SLI ring object.
412 *
413 * This function returns pointer to next command iocb entry
414 * in the command ring. The caller must hold hbalock to prevent
415 * other threads consume the next command iocb.
416 * SLI-2/SLI-3 provide different sized iocbs.
417 **/
James Smarted957682007-06-17 19:56:37 -0500418static inline IOCB_t *
419lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
420{
421 return (IOCB_t *) (((char *) pring->cmdringaddr) +
422 pring->cmdidx * phba->iocb_cmd_size);
423}
424
James Smarte59058c2008-08-24 21:49:00 -0400425/**
James Smart3621a712009-04-06 18:47:14 -0400426 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400427 * @phba: Pointer to HBA context object.
428 * @pring: Pointer to driver SLI ring object.
429 *
430 * This function returns pointer to next response iocb entry
431 * in the response ring. The caller must hold hbalock to make sure
432 * that no other thread consume the next response iocb.
433 * SLI-2/SLI-3 provide different sized iocbs.
434 **/
James Smarted957682007-06-17 19:56:37 -0500435static inline IOCB_t *
436lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
437{
438 return (IOCB_t *) (((char *) pring->rspringaddr) +
439 pring->rspidx * phba->iocb_rsp_size);
440}
441
James Smarte59058c2008-08-24 21:49:00 -0400442/**
James Smart3621a712009-04-06 18:47:14 -0400443 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400444 * @phba: Pointer to HBA context object.
445 *
446 * This function is called with hbalock held. This function
447 * allocates a new driver iocb object from the iocb pool. If the
448 * allocation is successful, it returns pointer to the newly
449 * allocated iocb object else it returns NULL.
450 **/
James Smart2e0fef82007-06-17 19:56:36 -0500451static struct lpfc_iocbq *
452__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400453{
454 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
455 struct lpfc_iocbq * iocbq = NULL;
456
457 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400458
459 if (iocbq)
460 phba->iocb_cnt++;
461 if (phba->iocb_cnt > phba->iocb_max)
462 phba->iocb_max = phba->iocb_cnt;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400463 return iocbq;
464}
465
James Smarte59058c2008-08-24 21:49:00 -0400466/**
James Smartda0436e2009-05-22 14:51:39 -0400467 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
468 * @phba: Pointer to HBA context object.
469 * @xritag: XRI value.
470 *
471 * This function clears the sglq pointer from the array of acive
472 * sglq's. The xritag that is passed in is used to index into the
473 * array. Before the xritag can be used it needs to be adjusted
474 * by subtracting the xribase.
475 *
476 * Returns sglq ponter = success, NULL = Failure.
477 **/
478static struct lpfc_sglq *
479__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
480{
481 uint16_t adj_xri;
482 struct lpfc_sglq *sglq;
483 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
484 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
485 return NULL;
486 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
487 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
488 return sglq;
489}
490
491/**
492 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
493 * @phba: Pointer to HBA context object.
494 * @xritag: XRI value.
495 *
496 * This function returns the sglq pointer from the array of acive
497 * sglq's. The xritag that is passed in is used to index into the
498 * array. Before the xritag can be used it needs to be adjusted
499 * by subtracting the xribase.
500 *
501 * Returns sglq ponter = success, NULL = Failure.
502 **/
James Smart0f65ff62010-02-26 14:14:23 -0500503struct lpfc_sglq *
James Smartda0436e2009-05-22 14:51:39 -0400504__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
505{
506 uint16_t adj_xri;
507 struct lpfc_sglq *sglq;
508 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
509 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
510 return NULL;
511 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
512 return sglq;
513}
514
515/**
516 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
517 * @phba: Pointer to HBA context object.
518 *
519 * This function is called with hbalock held. This function
520 * Gets a new driver sglq object from the sglq list. If the
521 * list is not empty then it is successful, it returns pointer to the newly
522 * allocated sglq object else it returns NULL.
523 **/
524static struct lpfc_sglq *
525__lpfc_sli_get_sglq(struct lpfc_hba *phba)
526{
527 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
528 struct lpfc_sglq *sglq = NULL;
529 uint16_t adj_xri;
530 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
James Smart6a9c52c2009-10-02 15:16:51 -0400531 if (!sglq)
532 return NULL;
James Smartda0436e2009-05-22 14:51:39 -0400533 adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
534 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
James Smart0f65ff62010-02-26 14:14:23 -0500535 sglq->state = SGL_ALLOCATED;
James Smartda0436e2009-05-22 14:51:39 -0400536 return sglq;
537}
538
539/**
James Smart3621a712009-04-06 18:47:14 -0400540 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400541 * @phba: Pointer to HBA context object.
542 *
543 * This function is called with no lock held. This function
544 * allocates a new driver iocb object from the iocb pool. If the
545 * allocation is successful, it returns pointer to the newly
546 * allocated iocb object else it returns NULL.
547 **/
James Smart2e0fef82007-06-17 19:56:36 -0500548struct lpfc_iocbq *
549lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500550{
James Smart2e0fef82007-06-17 19:56:36 -0500551 struct lpfc_iocbq * iocbq = NULL;
552 unsigned long iflags;
553
554 spin_lock_irqsave(&phba->hbalock, iflags);
555 iocbq = __lpfc_sli_get_iocbq(phba);
556 spin_unlock_irqrestore(&phba->hbalock, iflags);
557 return iocbq;
558}
559
James Smarte59058c2008-08-24 21:49:00 -0400560/**
James Smart4f774512009-05-22 14:52:35 -0400561 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
562 * @phba: Pointer to HBA context object.
563 * @iocbq: Pointer to driver iocb object.
564 *
565 * This function is called with hbalock held to release driver
566 * iocb object to the iocb pool. The iotag in the iocb object
567 * does not change for each use of the iocb object. This function
568 * clears all other fields of the iocb object when it is freed.
569 * The sqlq structure that holds the xritag and phys and virtual
570 * mappings for the scatter gather list is retrieved from the
571 * active array of sglq. The get of the sglq pointer also clears
572 * the entry in the array. If the status of the IO indiactes that
573 * this IO was aborted then the sglq entry it put on the
574 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
575 * IO has good status or fails for any other reason then the sglq
576 * entry is added to the free list (lpfc_sgl_list).
577 **/
578static void
579__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
580{
581 struct lpfc_sglq *sglq;
582 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
James Smart2a9bf3d2010-06-07 15:24:45 -0400583 unsigned long iflag = 0;
584 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
James Smart4f774512009-05-22 14:52:35 -0400585
586 if (iocbq->sli4_xritag == NO_XRI)
587 sglq = NULL;
588 else
589 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
590 if (sglq) {
James Smart0f65ff62010-02-26 14:14:23 -0500591 if ((iocbq->iocb_flag & LPFC_EXCHANGE_BUSY) &&
592 (sglq->state != SGL_XRI_ABORTED)) {
James Smart4f774512009-05-22 14:52:35 -0400593 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
594 iflag);
595 list_add(&sglq->list,
596 &phba->sli4_hba.lpfc_abts_els_sgl_list);
597 spin_unlock_irqrestore(
598 &phba->sli4_hba.abts_sgl_list_lock, iflag);
James Smart0f65ff62010-02-26 14:14:23 -0500599 } else {
600 sglq->state = SGL_FREED;
James Smart4f774512009-05-22 14:52:35 -0400601 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
James Smart2a9bf3d2010-06-07 15:24:45 -0400602
603 /* Check if TXQ queue needs to be serviced */
James Smart589a52d2010-07-14 15:30:54 -0400604 if (pring->txq_cnt)
James Smart2a9bf3d2010-06-07 15:24:45 -0400605 lpfc_worker_wake_up(phba);
James Smart0f65ff62010-02-26 14:14:23 -0500606 }
James Smart4f774512009-05-22 14:52:35 -0400607 }
608
609
610 /*
611 * Clean all volatile data fields, preserve iotag and node struct.
612 */
613 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
614 iocbq->sli4_xritag = NO_XRI;
615 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
616}
617
James Smart2a9bf3d2010-06-07 15:24:45 -0400618
James Smart4f774512009-05-22 14:52:35 -0400619/**
James Smart3772a992009-05-22 14:50:54 -0400620 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
621 * @phba: Pointer to HBA context object.
622 * @iocbq: Pointer to driver iocb object.
623 *
624 * This function is called with hbalock held to release driver
625 * iocb object to the iocb pool. The iotag in the iocb object
626 * does not change for each use of the iocb object. This function
627 * clears all other fields of the iocb object when it is freed.
628 **/
629static void
630__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
631{
632 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
633
634 /*
635 * Clean all volatile data fields, preserve iotag and node struct.
636 */
637 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
638 iocbq->sli4_xritag = NO_XRI;
639 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
640}
641
642/**
James Smart3621a712009-04-06 18:47:14 -0400643 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400644 * @phba: Pointer to HBA context object.
645 * @iocbq: Pointer to driver iocb object.
646 *
647 * This function is called with hbalock held to release driver
648 * iocb object to the iocb pool. The iotag in the iocb object
649 * does not change for each use of the iocb object. This function
650 * clears all other fields of the iocb object when it is freed.
651 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +0100652static void
James Smart2e0fef82007-06-17 19:56:36 -0500653__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
654{
James Smart3772a992009-05-22 14:50:54 -0400655 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Smart2a9bf3d2010-06-07 15:24:45 -0400656 phba->iocb_cnt--;
James Bottomley604a3e32005-10-29 10:28:33 -0500657}
658
James Smarte59058c2008-08-24 21:49:00 -0400659/**
James Smart3621a712009-04-06 18:47:14 -0400660 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400661 * @phba: Pointer to HBA context object.
662 * @iocbq: Pointer to driver iocb object.
663 *
664 * This function is called with no lock held to release the iocb to
665 * iocb pool.
666 **/
James Smart2e0fef82007-06-17 19:56:36 -0500667void
668lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
669{
670 unsigned long iflags;
671
672 /*
673 * Clean all volatile data fields, preserve iotag and node struct.
674 */
675 spin_lock_irqsave(&phba->hbalock, iflags);
676 __lpfc_sli_release_iocbq(phba, iocbq);
677 spin_unlock_irqrestore(&phba->hbalock, iflags);
678}
679
James Smarte59058c2008-08-24 21:49:00 -0400680/**
James Smarta257bf92009-04-06 18:48:10 -0400681 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
682 * @phba: Pointer to HBA context object.
683 * @iocblist: List of IOCBs.
684 * @ulpstatus: ULP status in IOCB command field.
685 * @ulpWord4: ULP word-4 in IOCB command field.
686 *
687 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
688 * on the list by invoking the complete callback function associated with the
689 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
690 * fields.
691 **/
692void
693lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
694 uint32_t ulpstatus, uint32_t ulpWord4)
695{
696 struct lpfc_iocbq *piocb;
697
698 while (!list_empty(iocblist)) {
699 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
700
701 if (!piocb->iocb_cmpl)
702 lpfc_sli_release_iocbq(phba, piocb);
703 else {
704 piocb->iocb.ulpStatus = ulpstatus;
705 piocb->iocb.un.ulpWord[4] = ulpWord4;
706 (piocb->iocb_cmpl) (phba, piocb, piocb);
707 }
708 }
709 return;
710}
711
712/**
James Smart3621a712009-04-06 18:47:14 -0400713 * lpfc_sli_iocb_cmd_type - Get the iocb type
714 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -0400715 *
716 * This function is called by ring event handler function to get the iocb type.
717 * This function translates the iocb command to an iocb command type used to
718 * decide the final disposition of each completed IOCB.
719 * The function returns
720 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
721 * LPFC_SOL_IOCB if it is a solicited iocb completion
722 * LPFC_ABORT_IOCB if it is an abort iocb
723 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
724 *
725 * The caller is not required to hold any lock.
726 **/
dea31012005-04-17 16:05:31 -0500727static lpfc_iocb_type
728lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
729{
730 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
731
732 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
733 return 0;
734
735 switch (iocb_cmnd) {
736 case CMD_XMIT_SEQUENCE_CR:
737 case CMD_XMIT_SEQUENCE_CX:
738 case CMD_XMIT_BCAST_CN:
739 case CMD_XMIT_BCAST_CX:
740 case CMD_ELS_REQUEST_CR:
741 case CMD_ELS_REQUEST_CX:
742 case CMD_CREATE_XRI_CR:
743 case CMD_CREATE_XRI_CX:
744 case CMD_GET_RPI_CN:
745 case CMD_XMIT_ELS_RSP_CX:
746 case CMD_GET_RPI_CR:
747 case CMD_FCP_IWRITE_CR:
748 case CMD_FCP_IWRITE_CX:
749 case CMD_FCP_IREAD_CR:
750 case CMD_FCP_IREAD_CX:
751 case CMD_FCP_ICMND_CR:
752 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -0500753 case CMD_FCP_TSEND_CX:
754 case CMD_FCP_TRSP_CX:
755 case CMD_FCP_TRECEIVE_CX:
756 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -0500757 case CMD_ADAPTER_MSG:
758 case CMD_ADAPTER_DUMP:
759 case CMD_XMIT_SEQUENCE64_CR:
760 case CMD_XMIT_SEQUENCE64_CX:
761 case CMD_XMIT_BCAST64_CN:
762 case CMD_XMIT_BCAST64_CX:
763 case CMD_ELS_REQUEST64_CR:
764 case CMD_ELS_REQUEST64_CX:
765 case CMD_FCP_IWRITE64_CR:
766 case CMD_FCP_IWRITE64_CX:
767 case CMD_FCP_IREAD64_CR:
768 case CMD_FCP_IREAD64_CX:
769 case CMD_FCP_ICMND64_CR:
770 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -0500771 case CMD_FCP_TSEND64_CX:
772 case CMD_FCP_TRSP64_CX:
773 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -0500774 case CMD_GEN_REQUEST64_CR:
775 case CMD_GEN_REQUEST64_CX:
776 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -0400777 case DSSCMD_IWRITE64_CR:
778 case DSSCMD_IWRITE64_CX:
779 case DSSCMD_IREAD64_CR:
780 case DSSCMD_IREAD64_CX:
dea31012005-04-17 16:05:31 -0500781 type = LPFC_SOL_IOCB;
782 break;
783 case CMD_ABORT_XRI_CN:
784 case CMD_ABORT_XRI_CX:
785 case CMD_CLOSE_XRI_CN:
786 case CMD_CLOSE_XRI_CX:
787 case CMD_XRI_ABORTED_CX:
788 case CMD_ABORT_MXRI64_CN:
James Smart6669f9b2009-10-02 15:16:45 -0400789 case CMD_XMIT_BLS_RSP64_CX:
dea31012005-04-17 16:05:31 -0500790 type = LPFC_ABORT_IOCB;
791 break;
792 case CMD_RCV_SEQUENCE_CX:
793 case CMD_RCV_ELS_REQ_CX:
794 case CMD_RCV_SEQUENCE64_CX:
795 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -0400796 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -0500797 case CMD_IOCB_RCV_SEQ64_CX:
798 case CMD_IOCB_RCV_ELS64_CX:
799 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -0500800 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -0500801 type = LPFC_UNSOL_IOCB;
802 break;
James Smart3163f722008-02-08 18:50:25 -0500803 case CMD_IOCB_XMIT_MSEQ64_CR:
804 case CMD_IOCB_XMIT_MSEQ64_CX:
805 case CMD_IOCB_RCV_SEQ_LIST64_CX:
806 case CMD_IOCB_RCV_ELS_LIST64_CX:
807 case CMD_IOCB_CLOSE_EXTENDED_CN:
808 case CMD_IOCB_ABORT_EXTENDED_CN:
809 case CMD_IOCB_RET_HBQE64_CN:
810 case CMD_IOCB_FCP_IBIDIR64_CR:
811 case CMD_IOCB_FCP_IBIDIR64_CX:
812 case CMD_IOCB_FCP_ITASKMGT64_CX:
813 case CMD_IOCB_LOGENTRY_CN:
814 case CMD_IOCB_LOGENTRY_ASYNC_CN:
815 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700816 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -0500817 type = LPFC_UNKNOWN_IOCB;
818 break;
dea31012005-04-17 16:05:31 -0500819 default:
820 type = LPFC_UNKNOWN_IOCB;
821 break;
822 }
823
824 return type;
825}
826
James Smarte59058c2008-08-24 21:49:00 -0400827/**
James Smart3621a712009-04-06 18:47:14 -0400828 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -0400829 * @phba: Pointer to HBA context object.
830 *
831 * This function is called from SLI initialization code
832 * to configure every ring of the HBA's SLI interface. The
833 * caller is not required to hold any lock. This function issues
834 * a config_ring mailbox command for each ring.
835 * This function returns zero if successful else returns a negative
836 * error code.
837 **/
dea31012005-04-17 16:05:31 -0500838static int
James Smarted957682007-06-17 19:56:37 -0500839lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -0500840{
841 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -0500842 LPFC_MBOXQ_t *pmb;
843 MAILBOX_t *pmbox;
844 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -0500845
James Smarted957682007-06-17 19:56:37 -0500846 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
847 if (!pmb)
848 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -0400849 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -0500850 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -0500851 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -0500852 lpfc_config_ring(phba, i, pmb);
853 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
854 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -0500855 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -0400856 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -0500857 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
858 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400859 rc, pmbox->mbxCommand,
860 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -0500861 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -0500862 ret = -ENXIO;
863 break;
dea31012005-04-17 16:05:31 -0500864 }
865 }
James Smarted957682007-06-17 19:56:37 -0500866 mempool_free(pmb, phba->mbox_mem_pool);
867 return ret;
dea31012005-04-17 16:05:31 -0500868}
869
James Smarte59058c2008-08-24 21:49:00 -0400870/**
James Smart3621a712009-04-06 18:47:14 -0400871 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -0400872 * @phba: Pointer to HBA context object.
873 * @pring: Pointer to driver SLI ring object.
874 * @piocb: Pointer to the driver iocb object.
875 *
876 * This function is called with hbalock held. The function adds the
877 * new iocb to txcmplq of the given ring. This function always returns
878 * 0. If this function is called for ELS ring, this function checks if
879 * there is a vport associated with the ELS command. This function also
880 * starts els_tmofunc timer if this is an ELS command.
881 **/
dea31012005-04-17 16:05:31 -0500882static int
James Smart2e0fef82007-06-17 19:56:36 -0500883lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
884 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -0500885{
dea31012005-04-17 16:05:31 -0500886 list_add_tail(&piocb->list, &pring->txcmplq);
James Smart2a9bf3d2010-06-07 15:24:45 -0400887 piocb->iocb_flag |= LPFC_IO_ON_Q;
dea31012005-04-17 16:05:31 -0500888 pring->txcmplq_cnt++;
James Smart2a9bf3d2010-06-07 15:24:45 -0400889 if (pring->txcmplq_cnt > pring->txcmplq_max)
890 pring->txcmplq_max = pring->txcmplq_cnt;
891
James Smart92d7f7b2007-06-17 19:56:38 -0500892 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
893 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
894 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
895 if (!piocb->vport)
896 BUG();
897 else
898 mod_timer(&piocb->vport->els_tmofunc,
899 jiffies + HZ * (phba->fc_ratov << 1));
900 }
901
dea31012005-04-17 16:05:31 -0500902
James Smart2e0fef82007-06-17 19:56:36 -0500903 return 0;
dea31012005-04-17 16:05:31 -0500904}
905
James Smarte59058c2008-08-24 21:49:00 -0400906/**
James Smart3621a712009-04-06 18:47:14 -0400907 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -0400908 * @phba: Pointer to HBA context object.
909 * @pring: Pointer to driver SLI ring object.
910 *
911 * This function is called with hbalock held to get next
912 * iocb in txq of the given ring. If there is any iocb in
913 * the txq, the function returns first iocb in the list after
914 * removing the iocb from the list, else it returns NULL.
915 **/
James Smart2a9bf3d2010-06-07 15:24:45 -0400916struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -0500917lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -0500918{
dea31012005-04-17 16:05:31 -0500919 struct lpfc_iocbq *cmd_iocb;
920
James Smart858c9f62007-06-17 19:56:39 -0500921 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
922 if (cmd_iocb != NULL)
dea31012005-04-17 16:05:31 -0500923 pring->txq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -0500924 return cmd_iocb;
dea31012005-04-17 16:05:31 -0500925}
926
James Smarte59058c2008-08-24 21:49:00 -0400927/**
James Smart3621a712009-04-06 18:47:14 -0400928 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -0400929 * @phba: Pointer to HBA context object.
930 * @pring: Pointer to driver SLI ring object.
931 *
932 * This function is called with hbalock held and the caller must post the
933 * iocb without releasing the lock. If the caller releases the lock,
934 * iocb slot returned by the function is not guaranteed to be available.
935 * The function returns pointer to the next available iocb slot if there
936 * is available slot in the ring, else it returns NULL.
937 * If the get index of the ring is ahead of the put index, the function
938 * will post an error attention event to the worker thread to take the
939 * HBA to offline state.
940 **/
dea31012005-04-17 16:05:31 -0500941static IOCB_t *
942lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
943{
James Smart34b02dc2008-08-24 21:49:55 -0400944 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -0500945 uint32_t max_cmd_idx = pring->numCiocb;
dea31012005-04-17 16:05:31 -0500946 if ((pring->next_cmdidx == pring->cmdidx) &&
947 (++pring->next_cmdidx >= max_cmd_idx))
948 pring->next_cmdidx = 0;
949
950 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
951
952 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
953
954 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
955 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -0400956 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +0200957 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400958 pring->ringno,
dea31012005-04-17 16:05:31 -0500959 pring->local_getidx, max_cmd_idx);
960
James Smart2e0fef82007-06-17 19:56:36 -0500961 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -0500962 /*
963 * All error attention handlers are posted to
964 * worker thread
965 */
966 phba->work_ha |= HA_ERATT;
967 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -0500968
James Smart5e9d9b82008-06-14 22:52:53 -0400969 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -0500970
971 return NULL;
972 }
973
974 if (pring->local_getidx == pring->next_cmdidx)
975 return NULL;
976 }
977
James Smarted957682007-06-17 19:56:37 -0500978 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -0500979}
980
James Smarte59058c2008-08-24 21:49:00 -0400981/**
James Smart3621a712009-04-06 18:47:14 -0400982 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -0400983 * @phba: Pointer to HBA context object.
984 * @iocbq: Pointer to driver iocb object.
985 *
986 * This function gets an iotag for the iocb. If there is no unused iotag and
987 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
988 * array and assigns a new iotag.
989 * The function returns the allocated iotag if successful, else returns zero.
990 * Zero is not a valid iotag.
991 * The caller is not required to hold any lock.
992 **/
James Bottomley604a3e32005-10-29 10:28:33 -0500993uint16_t
James Smart2e0fef82007-06-17 19:56:36 -0500994lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -0500995{
James Smart2e0fef82007-06-17 19:56:36 -0500996 struct lpfc_iocbq **new_arr;
997 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -0500998 size_t new_len;
999 struct lpfc_sli *psli = &phba->sli;
1000 uint16_t iotag;
dea31012005-04-17 16:05:31 -05001001
James Smart2e0fef82007-06-17 19:56:36 -05001002 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001003 iotag = psli->last_iotag;
1004 if(++iotag < psli->iocbq_lookup_len) {
1005 psli->last_iotag = iotag;
1006 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001007 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001008 iocbq->iotag = iotag;
1009 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -05001010 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -05001011 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
1012 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -05001013 spin_unlock_irq(&phba->hbalock);
1014 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -05001015 GFP_KERNEL);
1016 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -05001017 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001018 old_arr = psli->iocbq_lookup;
1019 if (new_len <= psli->iocbq_lookup_len) {
1020 /* highly unprobable case */
1021 kfree(new_arr);
1022 iotag = psli->last_iotag;
1023 if(++iotag < psli->iocbq_lookup_len) {
1024 psli->last_iotag = iotag;
1025 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001026 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001027 iocbq->iotag = iotag;
1028 return iotag;
1029 }
James Smart2e0fef82007-06-17 19:56:36 -05001030 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001031 return 0;
1032 }
1033 if (psli->iocbq_lookup)
1034 memcpy(new_arr, old_arr,
1035 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001036 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001037 psli->iocbq_lookup = new_arr;
1038 psli->iocbq_lookup_len = new_len;
1039 psli->last_iotag = iotag;
1040 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001041 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001042 iocbq->iotag = iotag;
1043 kfree(old_arr);
1044 return iotag;
1045 }
James Smart8f6d98d2006-08-01 07:34:00 -04001046 } else
James Smart2e0fef82007-06-17 19:56:36 -05001047 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001048
James Smartbc739052010-08-04 16:11:18 -04001049 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001050 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1051 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001052
James Bottomley604a3e32005-10-29 10:28:33 -05001053 return 0;
dea31012005-04-17 16:05:31 -05001054}
1055
James Smarte59058c2008-08-24 21:49:00 -04001056/**
James Smart3621a712009-04-06 18:47:14 -04001057 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001058 * @phba: Pointer to HBA context object.
1059 * @pring: Pointer to driver SLI ring object.
1060 * @iocb: Pointer to iocb slot in the ring.
1061 * @nextiocb: Pointer to driver iocb object which need to be
1062 * posted to firmware.
1063 *
1064 * This function is called with hbalock held to post a new iocb to
1065 * the firmware. This function copies the new iocb to ring iocb slot and
1066 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1067 * a completion call back for this iocb else the function will free the
1068 * iocb object.
1069 **/
dea31012005-04-17 16:05:31 -05001070static void
1071lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1072 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1073{
1074 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001075 * Set up an iotag
dea31012005-04-17 16:05:31 -05001076 */
James Bottomley604a3e32005-10-29 10:28:33 -05001077 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001078
James Smarte2a0a9d2008-12-04 22:40:02 -05001079
James Smarta58cbd52007-08-02 11:09:43 -04001080 if (pring->ringno == LPFC_ELS_RING) {
1081 lpfc_debugfs_slow_ring_trc(phba,
1082 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1083 *(((uint32_t *) &nextiocb->iocb) + 4),
1084 *(((uint32_t *) &nextiocb->iocb) + 6),
1085 *(((uint32_t *) &nextiocb->iocb) + 7));
1086 }
1087
dea31012005-04-17 16:05:31 -05001088 /*
1089 * Issue iocb command to adapter
1090 */
James Smart92d7f7b2007-06-17 19:56:38 -05001091 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001092 wmb();
1093 pring->stats.iocb_cmd++;
1094
1095 /*
1096 * If there is no completion routine to call, we can release the
1097 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1098 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1099 */
1100 if (nextiocb->iocb_cmpl)
1101 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001102 else
James Smart2e0fef82007-06-17 19:56:36 -05001103 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001104
1105 /*
1106 * Let the HBA know what IOCB slot will be the next one the
1107 * driver will put a command into.
1108 */
1109 pring->cmdidx = pring->next_cmdidx;
James Smarted957682007-06-17 19:56:37 -05001110 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001111}
1112
James Smarte59058c2008-08-24 21:49:00 -04001113/**
James Smart3621a712009-04-06 18:47:14 -04001114 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001115 * @phba: Pointer to HBA context object.
1116 * @pring: Pointer to driver SLI ring object.
1117 *
1118 * The caller is not required to hold any lock for calling this function.
1119 * This function updates the chip attention bits for the ring to inform firmware
1120 * that there are pending work to be done for this ring and requests an
1121 * interrupt when there is space available in the ring. This function is
1122 * called when the driver is unable to post more iocbs to the ring due
1123 * to unavailability of space in the ring.
1124 **/
dea31012005-04-17 16:05:31 -05001125static void
James Smart2e0fef82007-06-17 19:56:36 -05001126lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001127{
1128 int ringno = pring->ringno;
1129
1130 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1131
1132 wmb();
1133
1134 /*
1135 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1136 * The HBA will tell us when an IOCB entry is available.
1137 */
1138 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1139 readl(phba->CAregaddr); /* flush */
1140
1141 pring->stats.iocb_cmd_full++;
1142}
1143
James Smarte59058c2008-08-24 21:49:00 -04001144/**
James Smart3621a712009-04-06 18:47:14 -04001145 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001146 * @phba: Pointer to HBA context object.
1147 * @pring: Pointer to driver SLI ring object.
1148 *
1149 * This function updates the chip attention register bit for the
1150 * given ring to inform HBA that there is more work to be done
1151 * in this ring. The caller is not required to hold any lock.
1152 **/
dea31012005-04-17 16:05:31 -05001153static void
James Smart2e0fef82007-06-17 19:56:36 -05001154lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001155{
1156 int ringno = pring->ringno;
1157
1158 /*
1159 * Tell the HBA that there is work to do in this ring.
1160 */
James Smart34b02dc2008-08-24 21:49:55 -04001161 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1162 wmb();
1163 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1164 readl(phba->CAregaddr); /* flush */
1165 }
dea31012005-04-17 16:05:31 -05001166}
1167
James Smarte59058c2008-08-24 21:49:00 -04001168/**
James Smart3621a712009-04-06 18:47:14 -04001169 * lpfc_sli_resume_iocb - Process iocbs in the txq
James Smarte59058c2008-08-24 21:49:00 -04001170 * @phba: Pointer to HBA context object.
1171 * @pring: Pointer to driver SLI ring object.
1172 *
1173 * This function is called with hbalock held to post pending iocbs
1174 * in the txq to the firmware. This function is called when driver
1175 * detects space available in the ring.
1176 **/
dea31012005-04-17 16:05:31 -05001177static void
James Smart2e0fef82007-06-17 19:56:36 -05001178lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001179{
1180 IOCB_t *iocb;
1181 struct lpfc_iocbq *nextiocb;
1182
1183 /*
1184 * Check to see if:
1185 * (a) there is anything on the txq to send
1186 * (b) link is up
1187 * (c) link attention events can be processed (fcp ring only)
1188 * (d) IOCB processing is not blocked by the outstanding mbox command.
1189 */
1190 if (pring->txq_cnt &&
James Smart2e0fef82007-06-17 19:56:36 -05001191 lpfc_is_link_up(phba) &&
dea31012005-04-17 16:05:31 -05001192 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001193 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001194
1195 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1196 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1197 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1198
1199 if (iocb)
1200 lpfc_sli_update_ring(phba, pring);
1201 else
1202 lpfc_sli_update_full_ring(phba, pring);
1203 }
1204
1205 return;
1206}
1207
James Smarte59058c2008-08-24 21:49:00 -04001208/**
James Smart3621a712009-04-06 18:47:14 -04001209 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001210 * @phba: Pointer to HBA context object.
1211 * @hbqno: HBQ number.
1212 *
1213 * This function is called with hbalock held to get the next
1214 * available slot for the given HBQ. If there is free slot
1215 * available for the HBQ it will return pointer to the next available
1216 * HBQ entry else it will return NULL.
1217 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001218static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001219lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1220{
1221 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1222
1223 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1224 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1225 hbqp->next_hbqPutIdx = 0;
1226
1227 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001228 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001229 uint32_t getidx = le32_to_cpu(raw_index);
1230
1231 hbqp->local_hbqGetIdx = getidx;
1232
1233 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1234 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001235 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001236 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001237 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001238 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001239 hbqp->entry_count);
1240
1241 phba->link_state = LPFC_HBA_ERROR;
1242 return NULL;
1243 }
1244
1245 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1246 return NULL;
1247 }
1248
James Smart51ef4c22007-08-02 11:10:31 -04001249 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1250 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001251}
1252
James Smarte59058c2008-08-24 21:49:00 -04001253/**
James Smart3621a712009-04-06 18:47:14 -04001254 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001255 * @phba: Pointer to HBA context object.
1256 *
1257 * This function is called with no lock held to free all the
1258 * hbq buffers while uninitializing the SLI interface. It also
1259 * frees the HBQ buffers returned by the firmware but not yet
1260 * processed by the upper layers.
1261 **/
James Smarted957682007-06-17 19:56:37 -05001262void
1263lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1264{
James Smart92d7f7b2007-06-17 19:56:38 -05001265 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1266 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001267 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001268 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001269 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001270
James Smart51ef4c22007-08-02 11:10:31 -04001271 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001272 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001273 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001274 for (i = 0; i < hbq_count; ++i) {
1275 list_for_each_entry_safe(dmabuf, next_dmabuf,
1276 &phba->hbqs[i].hbq_buffer_list, list) {
1277 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1278 list_del(&hbq_buf->dbuf.list);
1279 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1280 }
James Smarta8adb832007-10-27 13:37:53 -04001281 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001282 }
James Smart3163f722008-02-08 18:50:25 -05001283 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001284 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1285 list) {
James Smart3163f722008-02-08 18:50:25 -05001286 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1287 list_del(&hbq_buf->dbuf.list);
1288 if (hbq_buf->tag == -1) {
1289 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1290 (phba, hbq_buf);
1291 } else {
1292 hbqno = hbq_buf->tag >> 16;
1293 if (hbqno >= LPFC_MAX_HBQS)
1294 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1295 (phba, hbq_buf);
1296 else
1297 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1298 hbq_buf);
1299 }
1300 }
1301
1302 /* Mark the HBQs not in use */
1303 phba->hbq_in_use = 0;
1304 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001305}
1306
James Smarte59058c2008-08-24 21:49:00 -04001307/**
James Smart3621a712009-04-06 18:47:14 -04001308 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001309 * @phba: Pointer to HBA context object.
1310 * @hbqno: HBQ number.
1311 * @hbq_buf: Pointer to HBQ buffer.
1312 *
1313 * This function is called with the hbalock held to post a
1314 * hbq buffer to the firmware. If the function finds an empty
1315 * slot in the HBQ, it will post the buffer. The function will return
1316 * pointer to the hbq entry if it successfully post the buffer
1317 * else it will return NULL.
1318 **/
James Smart3772a992009-05-22 14:50:54 -04001319static int
James Smarted957682007-06-17 19:56:37 -05001320lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001321 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001322{
James Smart3772a992009-05-22 14:50:54 -04001323 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1324}
1325
1326/**
1327 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1328 * @phba: Pointer to HBA context object.
1329 * @hbqno: HBQ number.
1330 * @hbq_buf: Pointer to HBQ buffer.
1331 *
1332 * This function is called with the hbalock held to post a hbq buffer to the
1333 * firmware. If the function finds an empty slot in the HBQ, it will post the
1334 * buffer and place it on the hbq_buffer_list. The function will return zero if
1335 * it successfully post the buffer else it will return an error.
1336 **/
1337static int
1338lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1339 struct hbq_dmabuf *hbq_buf)
1340{
James Smarted957682007-06-17 19:56:37 -05001341 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001342 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001343
1344 /* Get next HBQ entry slot to use */
1345 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1346 if (hbqe) {
1347 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1348
James Smart92d7f7b2007-06-17 19:56:38 -05001349 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1350 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001351 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001352 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001353 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1354 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1355 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001356 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1357 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001358 /* flush */
James Smarted957682007-06-17 19:56:37 -05001359 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001360 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001361 return 0;
1362 } else
1363 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001364}
1365
James Smart4f774512009-05-22 14:52:35 -04001366/**
1367 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1368 * @phba: Pointer to HBA context object.
1369 * @hbqno: HBQ number.
1370 * @hbq_buf: Pointer to HBQ buffer.
1371 *
1372 * This function is called with the hbalock held to post an RQE to the SLI4
1373 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1374 * the hbq_buffer_list and return zero, otherwise it will return an error.
1375 **/
1376static int
1377lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1378 struct hbq_dmabuf *hbq_buf)
1379{
1380 int rc;
1381 struct lpfc_rqe hrqe;
1382 struct lpfc_rqe drqe;
1383
1384 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1385 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1386 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1387 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1388 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1389 &hrqe, &drqe);
1390 if (rc < 0)
1391 return rc;
1392 hbq_buf->tag = rc;
1393 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1394 return 0;
1395}
1396
James Smarte59058c2008-08-24 21:49:00 -04001397/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001398static struct lpfc_hbq_init lpfc_els_hbq = {
1399 .rn = 1,
James Smartdef9c7a2009-12-21 17:02:28 -05001400 .entry_count = 256,
James Smart92d7f7b2007-06-17 19:56:38 -05001401 .mask_count = 0,
1402 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001403 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001404 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001405 .init_count = 40,
1406 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001407};
James Smarted957682007-06-17 19:56:37 -05001408
James Smarte59058c2008-08-24 21:49:00 -04001409/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001410static struct lpfc_hbq_init lpfc_extra_hbq = {
1411 .rn = 1,
1412 .entry_count = 200,
1413 .mask_count = 0,
1414 .profile = 0,
1415 .ring_mask = (1 << LPFC_EXTRA_RING),
1416 .buffer_count = 0,
1417 .init_count = 0,
1418 .add_count = 5,
1419};
1420
James Smarte59058c2008-08-24 21:49:00 -04001421/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001422struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001423 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001424 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001425};
1426
James Smarte59058c2008-08-24 21:49:00 -04001427/**
James Smart3621a712009-04-06 18:47:14 -04001428 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001429 * @phba: Pointer to HBA context object.
1430 * @hbqno: HBQ number.
1431 * @count: Number of HBQ buffers to be posted.
1432 *
James Smartd7c255b2008-08-24 21:50:00 -04001433 * This function is called with no lock held to post more hbq buffers to the
1434 * given HBQ. The function returns the number of HBQ buffers successfully
1435 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001436 **/
James Smart311464e2007-08-02 11:10:37 -04001437static int
James Smart92d7f7b2007-06-17 19:56:38 -05001438lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1439{
James Smartd7c255b2008-08-24 21:50:00 -04001440 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001441 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001442 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001443 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001444 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001445 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001446
James Smartd7c255b2008-08-24 21:50:00 -04001447 if ((phba->hbqs[hbqno].buffer_count + count) >
1448 lpfc_hbq_defs[hbqno]->entry_count)
1449 count = lpfc_hbq_defs[hbqno]->entry_count -
1450 phba->hbqs[hbqno].buffer_count;
1451 if (!count)
1452 return 0;
1453 /* Allocate HBQ entries */
1454 for (i = 0; i < count; i++) {
1455 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1456 if (!hbq_buffer)
1457 break;
1458 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1459 }
James Smart3163f722008-02-08 18:50:25 -05001460 /* Check whether HBQ is still in use */
1461 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001462 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001463 goto err;
1464 while (!list_empty(&hbq_buf_list)) {
1465 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1466 dbuf.list);
1467 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1468 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001469 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001470 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001471 posted++;
1472 } else
James Smart51ef4c22007-08-02 11:10:31 -04001473 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001474 }
James Smart3163f722008-02-08 18:50:25 -05001475 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001476 return posted;
1477err:
1478 spin_unlock_irqrestore(&phba->hbalock, flags);
1479 while (!list_empty(&hbq_buf_list)) {
1480 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1481 dbuf.list);
1482 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1483 }
James Smart92d7f7b2007-06-17 19:56:38 -05001484 return 0;
James Smarted957682007-06-17 19:56:37 -05001485}
1486
James Smarte59058c2008-08-24 21:49:00 -04001487/**
James Smart3621a712009-04-06 18:47:14 -04001488 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001489 * @phba: Pointer to HBA context object.
1490 * @qno: HBQ number.
1491 *
1492 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001493 * is called with no lock held. The function returns the number of HBQ entries
1494 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001495 **/
James Smarted957682007-06-17 19:56:37 -05001496int
James Smart92d7f7b2007-06-17 19:56:38 -05001497lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001498{
James Smartdef9c7a2009-12-21 17:02:28 -05001499 if (phba->sli_rev == LPFC_SLI_REV4)
1500 return 0;
1501 else
1502 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1503 lpfc_hbq_defs[qno]->add_count);
James Smarted957682007-06-17 19:56:37 -05001504}
1505
James Smarte59058c2008-08-24 21:49:00 -04001506/**
James Smart3621a712009-04-06 18:47:14 -04001507 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001508 * @phba: Pointer to HBA context object.
1509 * @qno: HBQ queue number.
1510 *
1511 * This function is called from SLI initialization code path with
1512 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001513 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001514 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001515static int
James Smart92d7f7b2007-06-17 19:56:38 -05001516lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001517{
James Smartdef9c7a2009-12-21 17:02:28 -05001518 if (phba->sli_rev == LPFC_SLI_REV4)
1519 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1520 lpfc_hbq_defs[qno]->entry_count);
1521 else
1522 return lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1523 lpfc_hbq_defs[qno]->init_count);
James Smarted957682007-06-17 19:56:37 -05001524}
1525
James Smarte59058c2008-08-24 21:49:00 -04001526/**
James Smart3772a992009-05-22 14:50:54 -04001527 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1528 * @phba: Pointer to HBA context object.
1529 * @hbqno: HBQ number.
1530 *
1531 * This function removes the first hbq buffer on an hbq list and returns a
1532 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1533 **/
1534static struct hbq_dmabuf *
1535lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1536{
1537 struct lpfc_dmabuf *d_buf;
1538
1539 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1540 if (!d_buf)
1541 return NULL;
1542 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1543}
1544
1545/**
James Smart3621a712009-04-06 18:47:14 -04001546 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001547 * @phba: Pointer to HBA context object.
1548 * @tag: Tag of the hbq buffer.
1549 *
1550 * This function is called with hbalock held. This function searches
1551 * for the hbq buffer associated with the given tag in the hbq buffer
1552 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1553 * it returns NULL.
1554 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001555static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001556lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1557{
James Smart92d7f7b2007-06-17 19:56:38 -05001558 struct lpfc_dmabuf *d_buf;
1559 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001560 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001561
James Smart51ef4c22007-08-02 11:10:31 -04001562 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001563 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001564 return NULL;
1565
James Smart3772a992009-05-22 14:50:54 -04001566 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001567 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001568 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001569 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001570 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001571 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001572 }
1573 }
James Smart3772a992009-05-22 14:50:54 -04001574 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001575 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001576 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04001577 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05001578 return NULL;
James Smarted957682007-06-17 19:56:37 -05001579}
1580
James Smarte59058c2008-08-24 21:49:00 -04001581/**
James Smart3621a712009-04-06 18:47:14 -04001582 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001583 * @phba: Pointer to HBA context object.
1584 * @hbq_buffer: Pointer to HBQ buffer.
1585 *
1586 * This function is called with hbalock. This function gives back
1587 * the hbq buffer to firmware. If the HBQ does not have space to
1588 * post the buffer, it will free the buffer.
1589 **/
James Smarted957682007-06-17 19:56:37 -05001590void
James Smart51ef4c22007-08-02 11:10:31 -04001591lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05001592{
1593 uint32_t hbqno;
1594
James Smart51ef4c22007-08-02 11:10:31 -04001595 if (hbq_buffer) {
1596 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04001597 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04001598 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05001599 }
1600}
1601
James Smarte59058c2008-08-24 21:49:00 -04001602/**
James Smart3621a712009-04-06 18:47:14 -04001603 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04001604 * @mbxCommand: mailbox command code.
1605 *
1606 * This function is called by the mailbox event handler function to verify
1607 * that the completed mailbox command is a legitimate mailbox command. If the
1608 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1609 * and the mailbox event handler will take the HBA offline.
1610 **/
dea31012005-04-17 16:05:31 -05001611static int
1612lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1613{
1614 uint8_t ret;
1615
1616 switch (mbxCommand) {
1617 case MBX_LOAD_SM:
1618 case MBX_READ_NV:
1619 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04001620 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05001621 case MBX_RUN_BIU_DIAG:
1622 case MBX_INIT_LINK:
1623 case MBX_DOWN_LINK:
1624 case MBX_CONFIG_LINK:
1625 case MBX_CONFIG_RING:
1626 case MBX_RESET_RING:
1627 case MBX_READ_CONFIG:
1628 case MBX_READ_RCONFIG:
1629 case MBX_READ_SPARM:
1630 case MBX_READ_STATUS:
1631 case MBX_READ_RPI:
1632 case MBX_READ_XRI:
1633 case MBX_READ_REV:
1634 case MBX_READ_LNK_STAT:
1635 case MBX_REG_LOGIN:
1636 case MBX_UNREG_LOGIN:
1637 case MBX_READ_LA:
1638 case MBX_CLEAR_LA:
1639 case MBX_DUMP_MEMORY:
1640 case MBX_DUMP_CONTEXT:
1641 case MBX_RUN_DIAGS:
1642 case MBX_RESTART:
1643 case MBX_UPDATE_CFG:
1644 case MBX_DOWN_LOAD:
1645 case MBX_DEL_LD_ENTRY:
1646 case MBX_RUN_PROGRAM:
1647 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05001648 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05001649 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001650 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05001651 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001652 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05001653 case MBX_LOAD_AREA:
1654 case MBX_RUN_BIU_DIAG64:
1655 case MBX_CONFIG_PORT:
1656 case MBX_READ_SPARM64:
1657 case MBX_READ_RPI64:
1658 case MBX_REG_LOGIN64:
1659 case MBX_READ_LA64:
James Smart09372822008-01-11 01:52:54 -05001660 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05001661 case MBX_SET_DEBUG:
1662 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04001663 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05001664 case MBX_REG_VPI:
1665 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05001666 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04001667 case MBX_PORT_CAPABILITIES:
1668 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04001669 case MBX_SLI4_CONFIG:
1670 case MBX_SLI4_REQ_FTRS:
1671 case MBX_REG_FCFI:
1672 case MBX_UNREG_FCFI:
1673 case MBX_REG_VFI:
1674 case MBX_UNREG_VFI:
1675 case MBX_INIT_VPI:
1676 case MBX_INIT_VFI:
1677 case MBX_RESUME_RPI:
James Smartc7495932010-04-06 15:05:28 -04001678 case MBX_READ_EVENT_LOG_STATUS:
1679 case MBX_READ_EVENT_LOG:
dea31012005-04-17 16:05:31 -05001680 ret = mbxCommand;
1681 break;
1682 default:
1683 ret = MBX_SHUTDOWN;
1684 break;
1685 }
James Smart2e0fef82007-06-17 19:56:36 -05001686 return ret;
dea31012005-04-17 16:05:31 -05001687}
James Smarte59058c2008-08-24 21:49:00 -04001688
1689/**
James Smart3621a712009-04-06 18:47:14 -04001690 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001691 * @phba: Pointer to HBA context object.
1692 * @pmboxq: Pointer to mailbox command.
1693 *
1694 * This is completion handler function for mailbox commands issued from
1695 * lpfc_sli_issue_mbox_wait function. This function is called by the
1696 * mailbox event handler function with no lock held. This function
1697 * will wake up thread waiting on the wait queue pointed by context1
1698 * of the mailbox.
1699 **/
James Smart04c68492009-05-22 14:52:52 -04001700void
James Smart2e0fef82007-06-17 19:56:36 -05001701lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05001702{
1703 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05001704 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05001705
1706 /*
1707 * If pdone_q is empty, the driver thread gave up waiting and
1708 * continued running.
1709 */
James Smart7054a602007-04-25 09:52:34 -04001710 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05001711 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001712 pdone_q = (wait_queue_head_t *) pmboxq->context1;
1713 if (pdone_q)
1714 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05001715 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001716 return;
1717}
1718
James Smarte59058c2008-08-24 21:49:00 -04001719
1720/**
James Smart3621a712009-04-06 18:47:14 -04001721 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001722 * @phba: Pointer to HBA context object.
1723 * @pmb: Pointer to mailbox object.
1724 *
1725 * This function is the default mailbox completion handler. It
1726 * frees the memory resources associated with the completed mailbox
1727 * command. If the completed command is a REG_LOGIN mailbox command,
1728 * this function will issue a UREG_LOGIN to re-claim the RPI.
1729 **/
dea31012005-04-17 16:05:31 -05001730void
James Smart2e0fef82007-06-17 19:56:36 -05001731lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05001732{
1733 struct lpfc_dmabuf *mp;
James Smart04c68492009-05-22 14:52:52 -04001734 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04001735 int rc;
James Smart695a8142010-01-26 23:08:03 -05001736 struct lpfc_vport *vport = pmb->vport;
James Smart7054a602007-04-25 09:52:34 -04001737
dea31012005-04-17 16:05:31 -05001738 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04001739
dea31012005-04-17 16:05:31 -05001740 if (mp) {
1741 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1742 kfree(mp);
1743 }
James Smart7054a602007-04-25 09:52:34 -04001744
James Smart04c68492009-05-22 14:52:52 -04001745 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1746 (phba->sli_rev == LPFC_SLI_REV4))
1747 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1748
James Smart7054a602007-04-25 09:52:34 -04001749 /*
1750 * If a REG_LOGIN succeeded after node is destroyed or node
1751 * is in re-discovery driver need to cleanup the RPI.
1752 */
James Smart2e0fef82007-06-17 19:56:36 -05001753 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04001754 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1755 !pmb->u.mb.mbxStatus) {
1756 rpi = pmb->u.mb.un.varWords[0];
1757 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1758 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001759 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04001760 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1761 if (rc != MBX_NOT_FINISHED)
1762 return;
1763 }
1764
James Smart695a8142010-01-26 23:08:03 -05001765 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1766 if ((pmb->u.mb.mbxCommand == MBX_REG_VPI) &&
1767 !(phba->pport->load_flag & FC_UNLOADING) &&
1768 !pmb->u.mb.mbxStatus) {
1769 lpfc_unreg_vpi(phba, pmb->u.mb.un.varRegVpi.vpi, pmb);
1770 pmb->vport = vport;
1771 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
1772 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1773 if (rc != MBX_NOT_FINISHED)
1774 return;
1775 }
1776
James Smart04c68492009-05-22 14:52:52 -04001777 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1778 lpfc_sli4_mbox_cmd_free(phba, pmb);
1779 else
1780 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05001781}
1782
James Smarte59058c2008-08-24 21:49:00 -04001783/**
James Smart3621a712009-04-06 18:47:14 -04001784 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04001785 * @phba: Pointer to HBA context object.
1786 *
1787 * This function is called with no lock held. This function processes all
1788 * the completed mailbox commands and gives it to upper layers. The interrupt
1789 * service routine processes mailbox completion interrupt and adds completed
1790 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1791 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1792 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1793 * function returns the mailbox commands to the upper layer by calling the
1794 * completion handler function of each mailbox.
1795 **/
dea31012005-04-17 16:05:31 -05001796int
James Smart2e0fef82007-06-17 19:56:36 -05001797lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001798{
James Smart92d7f7b2007-06-17 19:56:38 -05001799 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05001800 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05001801 int rc;
1802 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05001803
1804 phba->sli.slistat.mbox_event++;
1805
James Smart92d7f7b2007-06-17 19:56:38 -05001806 /* Get all completed mailboxe buffers into the cmplq */
1807 spin_lock_irq(&phba->hbalock);
1808 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1809 spin_unlock_irq(&phba->hbalock);
1810
dea31012005-04-17 16:05:31 -05001811 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05001812 do {
1813 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1814 if (pmb == NULL)
1815 break;
1816
James Smart04c68492009-05-22 14:52:52 -04001817 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05001818
James Smart858c9f62007-06-17 19:56:39 -05001819 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1820 if (pmb->vport) {
1821 lpfc_debugfs_disc_trc(pmb->vport,
1822 LPFC_DISC_TRC_MBOX_VPORT,
1823 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1824 (uint32_t)pmbox->mbxCommand,
1825 pmbox->un.varWords[0],
1826 pmbox->un.varWords[1]);
1827 }
1828 else {
1829 lpfc_debugfs_disc_trc(phba->pport,
1830 LPFC_DISC_TRC_MBOX,
1831 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1832 (uint32_t)pmbox->mbxCommand,
1833 pmbox->un.varWords[0],
1834 pmbox->un.varWords[1]);
1835 }
1836 }
1837
dea31012005-04-17 16:05:31 -05001838 /*
1839 * It is a fatal error if unknown mbox command completion.
1840 */
1841 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1842 MBX_SHUTDOWN) {
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02001843 /* Unknown mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05001844 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001845 "(%d):0323 Unknown Mailbox command "
James Smart04c68492009-05-22 14:52:52 -04001846 "x%x (x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001847 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04001848 pmbox->mbxCommand,
1849 lpfc_sli4_mbox_opcode_get(phba, pmb));
James Smart2e0fef82007-06-17 19:56:36 -05001850 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001851 phba->work_hs = HS_FFER3;
1852 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05001853 continue;
dea31012005-04-17 16:05:31 -05001854 }
1855
dea31012005-04-17 16:05:31 -05001856 if (pmbox->mbxStatus) {
1857 phba->sli.slistat.mbox_stat_err++;
1858 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1859 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05001860 lpfc_printf_log(phba, KERN_INFO,
1861 LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001862 "(%d):0305 Mbox cmd cmpl "
James Smart92d7f7b2007-06-17 19:56:38 -05001863 "error - RETRYing Data: x%x "
James Smart04c68492009-05-22 14:52:52 -04001864 "(x%x) x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001865 pmb->vport ? pmb->vport->vpi :0,
1866 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001867 lpfc_sli4_mbox_opcode_get(phba,
1868 pmb),
James Smart92d7f7b2007-06-17 19:56:38 -05001869 pmbox->mbxStatus,
1870 pmbox->un.varWords[0],
1871 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05001872 pmbox->mbxStatus = 0;
1873 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05001874 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04001875 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05001876 continue;
dea31012005-04-17 16:05:31 -05001877 }
1878 }
1879
1880 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05001881 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smart04c68492009-05-22 14:52:52 -04001882 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
dea31012005-04-17 16:05:31 -05001883 "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 -05001884 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05001885 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001886 lpfc_sli4_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05001887 pmb->mbox_cmpl,
1888 *((uint32_t *) pmbox),
1889 pmbox->un.varWords[0],
1890 pmbox->un.varWords[1],
1891 pmbox->un.varWords[2],
1892 pmbox->un.varWords[3],
1893 pmbox->un.varWords[4],
1894 pmbox->un.varWords[5],
1895 pmbox->un.varWords[6],
1896 pmbox->un.varWords[7]);
1897
James Smart92d7f7b2007-06-17 19:56:38 -05001898 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05001899 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001900 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05001901 return 0;
dea31012005-04-17 16:05:31 -05001902}
James Smart92d7f7b2007-06-17 19:56:38 -05001903
James Smarte59058c2008-08-24 21:49:00 -04001904/**
James Smart3621a712009-04-06 18:47:14 -04001905 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04001906 * @phba: Pointer to HBA context object.
1907 * @pring: Pointer to driver SLI ring object.
1908 * @tag: buffer tag.
1909 *
1910 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1911 * is set in the tag the buffer is posted for a particular exchange,
1912 * the function will return the buffer without replacing the buffer.
1913 * If the buffer is for unsolicited ELS or CT traffic, this function
1914 * returns the buffer and also posts another buffer to the firmware.
1915 **/
James Smart76bb24e2007-10-27 13:38:00 -04001916static struct lpfc_dmabuf *
1917lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05001918 struct lpfc_sli_ring *pring,
1919 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04001920{
James Smart9f1e1b52008-12-04 22:39:40 -05001921 struct hbq_dmabuf *hbq_entry;
1922
James Smart76bb24e2007-10-27 13:38:00 -04001923 if (tag & QUE_BUFTAG_BIT)
1924 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05001925 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1926 if (!hbq_entry)
1927 return NULL;
1928 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04001929}
James Smart57127f12007-10-27 13:37:05 -04001930
James Smart3772a992009-05-22 14:50:54 -04001931/**
1932 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1933 * @phba: Pointer to HBA context object.
1934 * @pring: Pointer to driver SLI ring object.
1935 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1936 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1937 * @fch_type: the type for the first frame of the sequence.
1938 *
1939 * This function is called with no lock held. This function uses the r_ctl and
1940 * type of the received sequence to find the correct callback function to call
1941 * to process the sequence.
1942 **/
1943static int
1944lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1945 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1946 uint32_t fch_type)
1947{
1948 int i;
1949
1950 /* unSolicited Responses */
1951 if (pring->prt[0].profile) {
1952 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1953 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1954 saveq);
1955 return 1;
1956 }
1957 /* We must search, based on rctl / type
1958 for the right routine */
1959 for (i = 0; i < pring->num_mask; i++) {
1960 if ((pring->prt[i].rctl == fch_r_ctl) &&
1961 (pring->prt[i].type == fch_type)) {
1962 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1963 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1964 (phba, pring, saveq);
1965 return 1;
1966 }
1967 }
1968 return 0;
1969}
James Smarte59058c2008-08-24 21:49:00 -04001970
1971/**
James Smart3621a712009-04-06 18:47:14 -04001972 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04001973 * @phba: Pointer to HBA context object.
1974 * @pring: Pointer to driver SLI ring object.
1975 * @saveq: Pointer to the unsolicited iocb.
1976 *
1977 * This function is called with no lock held by the ring event handler
1978 * when there is an unsolicited iocb posted to the response ring by the
1979 * firmware. This function gets the buffer associated with the iocbs
1980 * and calls the event handler for the ring. This function handles both
1981 * qring buffers and hbq buffers.
1982 * When the function returns 1 the caller can free the iocb object otherwise
1983 * upper layer functions will free the iocb objects.
1984 **/
dea31012005-04-17 16:05:31 -05001985static int
1986lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1987 struct lpfc_iocbq *saveq)
1988{
1989 IOCB_t * irsp;
1990 WORD5 * w5p;
1991 uint32_t Rctl, Type;
James Smart3772a992009-05-22 14:50:54 -04001992 uint32_t match;
James Smart76bb24e2007-10-27 13:38:00 -04001993 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05001994 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05001995
1996 match = 0;
1997 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04001998
1999 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
2000 if (pring->lpfc_sli_rcv_async_status)
2001 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
2002 else
2003 lpfc_printf_log(phba,
2004 KERN_WARNING,
2005 LOG_SLI,
2006 "0316 Ring %d handler: unexpected "
2007 "ASYNC_STATUS iocb received evt_code "
2008 "0x%x\n",
2009 pring->ringno,
2010 irsp->un.asyncstat.evt_code);
2011 return 1;
2012 }
2013
James Smart3163f722008-02-08 18:50:25 -05002014 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
2015 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
2016 if (irsp->ulpBdeCount > 0) {
2017 dmzbuf = lpfc_sli_get_buff(phba, pring,
2018 irsp->un.ulpWord[3]);
2019 lpfc_in_buf_free(phba, dmzbuf);
2020 }
2021
2022 if (irsp->ulpBdeCount > 1) {
2023 dmzbuf = lpfc_sli_get_buff(phba, pring,
2024 irsp->unsli3.sli3Words[3]);
2025 lpfc_in_buf_free(phba, dmzbuf);
2026 }
2027
2028 if (irsp->ulpBdeCount > 2) {
2029 dmzbuf = lpfc_sli_get_buff(phba, pring,
2030 irsp->unsli3.sli3Words[7]);
2031 lpfc_in_buf_free(phba, dmzbuf);
2032 }
2033
2034 return 1;
2035 }
2036
James Smart92d7f7b2007-06-17 19:56:38 -05002037 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04002038 if (irsp->ulpBdeCount != 0) {
2039 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05002040 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002041 if (!saveq->context2)
2042 lpfc_printf_log(phba,
2043 KERN_ERR,
2044 LOG_SLI,
2045 "0341 Ring %d Cannot find buffer for "
2046 "an unsolicited iocb. tag 0x%x\n",
2047 pring->ringno,
2048 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002049 }
2050 if (irsp->ulpBdeCount == 2) {
2051 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002052 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002053 if (!saveq->context3)
2054 lpfc_printf_log(phba,
2055 KERN_ERR,
2056 LOG_SLI,
2057 "0342 Ring %d Cannot find buffer for an"
2058 " unsolicited iocb. tag 0x%x\n",
2059 pring->ringno,
2060 irsp->unsli3.sli3Words[7]);
2061 }
2062 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002063 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002064 if (irsp->ulpBdeCount != 0) {
2065 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2066 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002067 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002068 lpfc_printf_log(phba,
2069 KERN_ERR,
2070 LOG_SLI,
2071 "0343 Ring %d Cannot find "
2072 "buffer for an unsolicited iocb"
2073 ". tag 0x%x\n", pring->ringno,
2074 irsp->un.ulpWord[3]);
2075 }
2076 if (irsp->ulpBdeCount == 2) {
2077 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2078 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002079 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002080 lpfc_printf_log(phba,
2081 KERN_ERR,
2082 LOG_SLI,
2083 "0344 Ring %d Cannot find "
2084 "buffer for an unsolicited "
2085 "iocb. tag 0x%x\n",
2086 pring->ringno,
2087 irsp->unsli3.sli3Words[7]);
2088 }
2089 }
James Smart92d7f7b2007-06-17 19:56:38 -05002090 }
James Smart9c2face2008-01-11 01:53:18 -05002091 if (irsp->ulpBdeCount != 0 &&
2092 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2093 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2094 int found = 0;
2095
2096 /* search continue save q for same XRI */
2097 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2098 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2099 list_add_tail(&saveq->list, &iocbq->list);
2100 found = 1;
2101 break;
2102 }
2103 }
2104 if (!found)
2105 list_add_tail(&saveq->clist,
2106 &pring->iocb_continue_saveq);
2107 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2108 list_del_init(&iocbq->clist);
2109 saveq = iocbq;
2110 irsp = &(saveq->iocb);
2111 } else
2112 return 0;
2113 }
2114 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2115 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2116 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002117 Rctl = FC_RCTL_ELS_REQ;
2118 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002119 } else {
2120 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2121 Rctl = w5p->hcsw.Rctl;
2122 Type = w5p->hcsw.Type;
2123
2124 /* Firmware Workaround */
2125 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2126 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2127 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
James Smart6a9c52c2009-10-02 15:16:51 -04002128 Rctl = FC_RCTL_ELS_REQ;
2129 Type = FC_TYPE_ELS;
James Smart9c2face2008-01-11 01:53:18 -05002130 w5p->hcsw.Rctl = Rctl;
2131 w5p->hcsw.Type = Type;
2132 }
2133 }
James Smart92d7f7b2007-06-17 19:56:38 -05002134
James Smart3772a992009-05-22 14:50:54 -04002135 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002136 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002137 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002138 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002139 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002140
James Smart92d7f7b2007-06-17 19:56:38 -05002141 return 1;
dea31012005-04-17 16:05:31 -05002142}
2143
James Smarte59058c2008-08-24 21:49:00 -04002144/**
James Smart3621a712009-04-06 18:47:14 -04002145 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002146 * @phba: Pointer to HBA context object.
2147 * @pring: Pointer to driver SLI ring object.
2148 * @prspiocb: Pointer to response iocb object.
2149 *
2150 * This function looks up the iocb_lookup table to get the command iocb
2151 * corresponding to the given response iocb using the iotag of the
2152 * response iocb. This function is called with the hbalock held.
2153 * This function returns the command iocb object if it finds the command
2154 * iocb else returns NULL.
2155 **/
dea31012005-04-17 16:05:31 -05002156static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002157lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2158 struct lpfc_sli_ring *pring,
2159 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002160{
dea31012005-04-17 16:05:31 -05002161 struct lpfc_iocbq *cmd_iocb = NULL;
2162 uint16_t iotag;
2163
James Bottomley604a3e32005-10-29 10:28:33 -05002164 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002165
James Bottomley604a3e32005-10-29 10:28:33 -05002166 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2167 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002168 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002169 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2170 pring->txcmplq_cnt--;
2171 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2172 }
James Bottomley604a3e32005-10-29 10:28:33 -05002173 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002174 }
2175
dea31012005-04-17 16:05:31 -05002176 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002177 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002178 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002179 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002180 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002181 return NULL;
2182}
2183
James Smarte59058c2008-08-24 21:49:00 -04002184/**
James Smart3772a992009-05-22 14:50:54 -04002185 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2186 * @phba: Pointer to HBA context object.
2187 * @pring: Pointer to driver SLI ring object.
2188 * @iotag: IOCB tag.
2189 *
2190 * This function looks up the iocb_lookup table to get the command iocb
2191 * corresponding to the given iotag. This function is called with the
2192 * hbalock held.
2193 * This function returns the command iocb object if it finds the command
2194 * iocb else returns NULL.
2195 **/
2196static struct lpfc_iocbq *
2197lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2198 struct lpfc_sli_ring *pring, uint16_t iotag)
2199{
2200 struct lpfc_iocbq *cmd_iocb;
2201
2202 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2203 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2204 list_del_init(&cmd_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04002205 if (cmd_iocb->iocb_flag & LPFC_IO_ON_Q) {
2206 cmd_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
2207 pring->txcmplq_cnt--;
2208 }
James Smart3772a992009-05-22 14:50:54 -04002209 return cmd_iocb;
2210 }
2211
2212 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2213 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2214 iotag, phba->sli.last_iotag);
2215 return NULL;
2216}
2217
2218/**
James Smart3621a712009-04-06 18:47:14 -04002219 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002220 * @phba: Pointer to HBA context object.
2221 * @pring: Pointer to driver SLI ring object.
2222 * @saveq: Pointer to the response iocb to be processed.
2223 *
2224 * This function is called by the ring event handler for non-fcp
2225 * rings when there is a new response iocb in the response ring.
2226 * The caller is not required to hold any locks. This function
2227 * gets the command iocb associated with the response iocb and
2228 * calls the completion handler for the command iocb. If there
2229 * is no completion handler, the function will free the resources
2230 * associated with command iocb. If the response iocb is for
2231 * an already aborted command iocb, the status of the completion
2232 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2233 * This function always returns 1.
2234 **/
dea31012005-04-17 16:05:31 -05002235static int
James Smart2e0fef82007-06-17 19:56:36 -05002236lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002237 struct lpfc_iocbq *saveq)
2238{
James Smart2e0fef82007-06-17 19:56:36 -05002239 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002240 int rc = 1;
2241 unsigned long iflag;
2242
2243 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002244 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002245 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002246 spin_unlock_irqrestore(&phba->hbalock, iflag);
2247
dea31012005-04-17 16:05:31 -05002248 if (cmdiocbp) {
2249 if (cmdiocbp->iocb_cmpl) {
2250 /*
James Smartea2151b2008-09-07 11:52:10 -04002251 * If an ELS command failed send an event to mgmt
2252 * application.
2253 */
2254 if (saveq->iocb.ulpStatus &&
2255 (pring->ringno == LPFC_ELS_RING) &&
2256 (cmdiocbp->iocb.ulpCommand ==
2257 CMD_ELS_REQUEST64_CR))
2258 lpfc_send_els_failure_event(phba,
2259 cmdiocbp, saveq);
2260
2261 /*
dea31012005-04-17 16:05:31 -05002262 * Post all ELS completions to the worker thread.
2263 * All other are passed to the completion callback.
2264 */
2265 if (pring->ringno == LPFC_ELS_RING) {
James Smart341af102010-01-26 23:07:37 -05002266 if ((phba->sli_rev < LPFC_SLI_REV4) &&
2267 (cmdiocbp->iocb_flag &
2268 LPFC_DRIVER_ABORTED)) {
2269 spin_lock_irqsave(&phba->hbalock,
2270 iflag);
James Smart07951072007-04-25 09:51:38 -04002271 cmdiocbp->iocb_flag &=
2272 ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05002273 spin_unlock_irqrestore(&phba->hbalock,
2274 iflag);
James Smart07951072007-04-25 09:51:38 -04002275 saveq->iocb.ulpStatus =
2276 IOSTAT_LOCAL_REJECT;
2277 saveq->iocb.un.ulpWord[4] =
2278 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002279
2280 /* Firmware could still be in progress
2281 * of DMAing payload, so don't free data
2282 * buffer till after a hbeat.
2283 */
James Smart341af102010-01-26 23:07:37 -05002284 spin_lock_irqsave(&phba->hbalock,
2285 iflag);
James Smart0ff10d42008-01-11 01:52:36 -05002286 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart341af102010-01-26 23:07:37 -05002287 spin_unlock_irqrestore(&phba->hbalock,
2288 iflag);
2289 }
James Smart0f65ff62010-02-26 14:14:23 -05002290 if (phba->sli_rev == LPFC_SLI_REV4) {
2291 if (saveq->iocb_flag &
2292 LPFC_EXCHANGE_BUSY) {
2293 /* Set cmdiocb flag for the
2294 * exchange busy so sgl (xri)
2295 * will not be released until
2296 * the abort xri is received
2297 * from hba.
2298 */
2299 spin_lock_irqsave(
2300 &phba->hbalock, iflag);
2301 cmdiocbp->iocb_flag |=
2302 LPFC_EXCHANGE_BUSY;
2303 spin_unlock_irqrestore(
2304 &phba->hbalock, iflag);
2305 }
2306 if (cmdiocbp->iocb_flag &
2307 LPFC_DRIVER_ABORTED) {
2308 /*
2309 * Clear LPFC_DRIVER_ABORTED
2310 * bit in case it was driver
2311 * initiated abort.
2312 */
2313 spin_lock_irqsave(
2314 &phba->hbalock, iflag);
2315 cmdiocbp->iocb_flag &=
2316 ~LPFC_DRIVER_ABORTED;
2317 spin_unlock_irqrestore(
2318 &phba->hbalock, iflag);
2319 cmdiocbp->iocb.ulpStatus =
2320 IOSTAT_LOCAL_REJECT;
2321 cmdiocbp->iocb.un.ulpWord[4] =
2322 IOERR_ABORT_REQUESTED;
2323 /*
2324 * For SLI4, irsiocb contains
2325 * NO_XRI in sli_xritag, it
2326 * shall not affect releasing
2327 * sgl (xri) process.
2328 */
2329 saveq->iocb.ulpStatus =
2330 IOSTAT_LOCAL_REJECT;
2331 saveq->iocb.un.ulpWord[4] =
2332 IOERR_SLI_ABORTED;
2333 spin_lock_irqsave(
2334 &phba->hbalock, iflag);
2335 saveq->iocb_flag |=
2336 LPFC_DELAY_MEM_FREE;
2337 spin_unlock_irqrestore(
2338 &phba->hbalock, iflag);
2339 }
James Smart07951072007-04-25 09:51:38 -04002340 }
dea31012005-04-17 16:05:31 -05002341 }
James Smart2e0fef82007-06-17 19:56:36 -05002342 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002343 } else
2344 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002345 } else {
2346 /*
2347 * Unknown initiating command based on the response iotag.
2348 * This could be the case on the ELS ring because of
2349 * lpfc_els_abort().
2350 */
2351 if (pring->ringno != LPFC_ELS_RING) {
2352 /*
2353 * Ring <ringno> handler: unexpected completion IoTag
2354 * <IoTag>
2355 */
James Smarta257bf92009-04-06 18:48:10 -04002356 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002357 "0322 Ring %d handler: "
2358 "unexpected completion IoTag x%x "
2359 "Data: x%x x%x x%x x%x\n",
2360 pring->ringno,
2361 saveq->iocb.ulpIoTag,
2362 saveq->iocb.ulpStatus,
2363 saveq->iocb.un.ulpWord[4],
2364 saveq->iocb.ulpCommand,
2365 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002366 }
2367 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002368
dea31012005-04-17 16:05:31 -05002369 return rc;
2370}
2371
James Smarte59058c2008-08-24 21:49:00 -04002372/**
James Smart3621a712009-04-06 18:47:14 -04002373 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002374 * @phba: Pointer to HBA context object.
2375 * @pring: Pointer to driver SLI ring object.
2376 *
2377 * This function is called from the iocb ring event handlers when
2378 * put pointer is ahead of the get pointer for a ring. This function signal
2379 * an error attention condition to the worker thread and the worker
2380 * thread will transition the HBA to offline state.
2381 **/
James Smart2e0fef82007-06-17 19:56:36 -05002382static void
2383lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002384{
James Smart34b02dc2008-08-24 21:49:55 -04002385 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002386 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002387 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002388 * rsp ring <portRspMax>
2389 */
2390 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002391 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002392 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002393 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002394 pring->numRiocb);
2395
James Smart2e0fef82007-06-17 19:56:36 -05002396 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002397
2398 /*
2399 * All error attention handlers are posted to
2400 * worker thread
2401 */
2402 phba->work_ha |= HA_ERATT;
2403 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002404
James Smart5e9d9b82008-06-14 22:52:53 -04002405 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002406
2407 return;
2408}
2409
James Smarte59058c2008-08-24 21:49:00 -04002410/**
James Smart3621a712009-04-06 18:47:14 -04002411 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002412 * @ptr: Pointer to address of HBA context object.
2413 *
2414 * This function is invoked by the Error Attention polling timer when the
2415 * timer times out. It will check the SLI Error Attention register for
2416 * possible attention events. If so, it will post an Error Attention event
2417 * and wake up worker thread to process it. Otherwise, it will set up the
2418 * Error Attention polling timer for the next poll.
2419 **/
2420void lpfc_poll_eratt(unsigned long ptr)
2421{
2422 struct lpfc_hba *phba;
2423 uint32_t eratt = 0;
2424
2425 phba = (struct lpfc_hba *)ptr;
2426
2427 /* Check chip HA register for error event */
2428 eratt = lpfc_sli_check_eratt(phba);
2429
2430 if (eratt)
2431 /* Tell the worker thread there is work to do */
2432 lpfc_worker_wake_up(phba);
2433 else
2434 /* Restart the timer for next eratt poll */
2435 mod_timer(&phba->eratt_poll, jiffies +
2436 HZ * LPFC_ERATT_POLL_INTERVAL);
2437 return;
2438}
2439
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002440
James Smarte59058c2008-08-24 21:49:00 -04002441/**
James Smart3621a712009-04-06 18:47:14 -04002442 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002443 * @phba: Pointer to HBA context object.
2444 * @pring: Pointer to driver SLI ring object.
2445 * @mask: Host attention register mask for this ring.
2446 *
2447 * This function is called from the interrupt context when there is a ring
2448 * event for the fcp ring. The caller does not hold any lock.
2449 * The function processes each response iocb in the response ring until it
2450 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2451 * LE bit set. The function will call the completion handler of the command iocb
2452 * if the response iocb indicates a completion for a command iocb or it is
2453 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2454 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002455 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smart45ed1192009-10-02 15:17:02 -04002456 * to check it explicitly.
2457 */
2458int
James Smart2e0fef82007-06-17 19:56:36 -05002459lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2460 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002461{
James Smart34b02dc2008-08-24 21:49:55 -04002462 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002463 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002464 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002465 struct lpfc_iocbq *cmdiocbq = NULL;
2466 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002467 uint32_t status;
2468 uint32_t portRspPut, portRspMax;
2469 int rc = 1;
2470 lpfc_iocb_type type;
2471 unsigned long iflag;
2472 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002473
James Smart2e0fef82007-06-17 19:56:36 -05002474 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002475 pring->stats.iocb_event++;
2476
dea31012005-04-17 16:05:31 -05002477 /*
2478 * The next available response entry should never exceed the maximum
2479 * entries. If it does, treat it as an adapter hardware error.
2480 */
2481 portRspMax = pring->numRiocb;
2482 portRspPut = le32_to_cpu(pgp->rspPutInx);
2483 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002484 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002485 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002486 return 1;
2487 }
James Smart45ed1192009-10-02 15:17:02 -04002488 if (phba->fcp_ring_in_use) {
2489 spin_unlock_irqrestore(&phba->hbalock, iflag);
2490 return 1;
2491 } else
2492 phba->fcp_ring_in_use = 1;
dea31012005-04-17 16:05:31 -05002493
2494 rmb();
2495 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002496 /*
2497 * Fetch an entry off the ring and copy it into a local data
2498 * structure. The copy involves a byte-swap since the
2499 * network byte order and pci byte orders are different.
2500 */
James Smarted957682007-06-17 19:56:37 -05002501 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05002502 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002503
2504 if (++pring->rspidx >= portRspMax)
2505 pring->rspidx = 0;
2506
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002507 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2508 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05002509 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05002510 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002511 irsp = &rspiocbq.iocb;
2512
dea31012005-04-17 16:05:31 -05002513 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2514 pring->stats.iocb_rsp++;
2515 rsp_cmpl++;
2516
2517 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05002518 /*
2519 * If resource errors reported from HBA, reduce
2520 * queuedepths of the SCSI device.
2521 */
2522 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2523 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2524 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002525 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002526 spin_lock_irqsave(&phba->hbalock, iflag);
2527 }
2528
dea31012005-04-17 16:05:31 -05002529 /* Rsp ring <ringno> error: IOCB */
2530 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002531 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05002532 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002533 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05002534 irsp->un.ulpWord[0],
2535 irsp->un.ulpWord[1],
2536 irsp->un.ulpWord[2],
2537 irsp->un.ulpWord[3],
2538 irsp->un.ulpWord[4],
2539 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002540 *(uint32_t *)&irsp->un1,
2541 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05002542 }
2543
2544 switch (type) {
2545 case LPFC_ABORT_IOCB:
2546 case LPFC_SOL_IOCB:
2547 /*
2548 * Idle exchange closed via ABTS from port. No iocb
2549 * resources need to be recovered.
2550 */
2551 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002552 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002553 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04002554 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05002555 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04002556 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05002557 break;
2558 }
2559
James Bottomley604a3e32005-10-29 10:28:33 -05002560 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2561 &rspiocbq);
James Smart0f65ff62010-02-26 14:14:23 -05002562 if (unlikely(!cmdiocbq))
2563 break;
2564 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
2565 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
2566 if (cmdiocbq->iocb_cmpl) {
2567 spin_unlock_irqrestore(&phba->hbalock, iflag);
2568 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2569 &rspiocbq);
2570 spin_lock_irqsave(&phba->hbalock, iflag);
2571 }
dea31012005-04-17 16:05:31 -05002572 break;
James Smarta4bc3372006-12-02 13:34:16 -05002573 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05002574 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002575 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002576 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002577 break;
dea31012005-04-17 16:05:31 -05002578 default:
2579 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2580 char adaptermsg[LPFC_MAX_ADPTMSG];
2581 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2582 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2583 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002584 dev_warn(&((phba->pcidev)->dev),
2585 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05002586 phba->brd_no, adaptermsg);
2587 } else {
2588 /* Unknown IOCB command */
2589 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002590 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05002591 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002592 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05002593 irsp->ulpStatus,
2594 irsp->ulpIoTag,
2595 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05002596 }
2597 break;
2598 }
2599
2600 /*
2601 * The response IOCB has been processed. Update the ring
2602 * pointer in SLIM. If the port response put pointer has not
2603 * been updated, sync the pgp->rspPutInx and fetch the new port
2604 * response put pointer.
2605 */
James Smarted957682007-06-17 19:56:37 -05002606 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002607
2608 if (pring->rspidx == portRspPut)
2609 portRspPut = le32_to_cpu(pgp->rspPutInx);
2610 }
2611
2612 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2613 pring->stats.iocb_rsp_full++;
2614 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2615 writel(status, phba->CAregaddr);
2616 readl(phba->CAregaddr);
2617 }
2618 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2619 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2620 pring->stats.iocb_cmd_empty++;
2621
2622 /* Force update of the local copy of cmdGetInx */
2623 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2624 lpfc_sli_resume_iocb(phba, pring);
2625
2626 if ((pring->lpfc_sli_cmd_available))
2627 (pring->lpfc_sli_cmd_available) (phba, pring);
2628
2629 }
2630
James Smart45ed1192009-10-02 15:17:02 -04002631 phba->fcp_ring_in_use = 0;
James Smart2e0fef82007-06-17 19:56:36 -05002632 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002633 return rc;
2634}
2635
James Smarte59058c2008-08-24 21:49:00 -04002636/**
James Smart3772a992009-05-22 14:50:54 -04002637 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2638 * @phba: Pointer to HBA context object.
2639 * @pring: Pointer to driver SLI ring object.
2640 * @rspiocbp: Pointer to driver response IOCB object.
2641 *
2642 * This function is called from the worker thread when there is a slow-path
2643 * response IOCB to process. This function chains all the response iocbs until
2644 * seeing the iocb with the LE bit set. The function will call
2645 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2646 * completion of a command iocb. The function will call the
2647 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2648 * The function frees the resources or calls the completion handler if this
2649 * iocb is an abort completion. The function returns NULL when the response
2650 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2651 * this function shall chain the iocb on to the iocb_continueq and return the
2652 * response iocb passed in.
2653 **/
2654static struct lpfc_iocbq *
2655lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2656 struct lpfc_iocbq *rspiocbp)
2657{
2658 struct lpfc_iocbq *saveq;
2659 struct lpfc_iocbq *cmdiocbp;
2660 struct lpfc_iocbq *next_iocb;
2661 IOCB_t *irsp = NULL;
2662 uint32_t free_saveq;
2663 uint8_t iocb_cmd_type;
2664 lpfc_iocb_type type;
2665 unsigned long iflag;
2666 int rc;
2667
2668 spin_lock_irqsave(&phba->hbalock, iflag);
2669 /* First add the response iocb to the countinueq list */
2670 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2671 pring->iocb_continueq_cnt++;
2672
2673 /* Now, determine whetehr the list is completed for processing */
2674 irsp = &rspiocbp->iocb;
2675 if (irsp->ulpLe) {
2676 /*
2677 * By default, the driver expects to free all resources
2678 * associated with this iocb completion.
2679 */
2680 free_saveq = 1;
2681 saveq = list_get_first(&pring->iocb_continueq,
2682 struct lpfc_iocbq, list);
2683 irsp = &(saveq->iocb);
2684 list_del_init(&pring->iocb_continueq);
2685 pring->iocb_continueq_cnt = 0;
2686
2687 pring->stats.iocb_rsp++;
2688
2689 /*
2690 * If resource errors reported from HBA, reduce
2691 * queuedepths of the SCSI device.
2692 */
2693 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2694 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2695 spin_unlock_irqrestore(&phba->hbalock, iflag);
2696 phba->lpfc_rampdown_queue_depth(phba);
2697 spin_lock_irqsave(&phba->hbalock, iflag);
2698 }
2699
2700 if (irsp->ulpStatus) {
2701 /* Rsp ring <ringno> error: IOCB */
2702 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2703 "0328 Rsp Ring %d error: "
2704 "IOCB Data: "
2705 "x%x x%x x%x x%x "
2706 "x%x x%x x%x x%x "
2707 "x%x x%x x%x x%x "
2708 "x%x x%x x%x x%x\n",
2709 pring->ringno,
2710 irsp->un.ulpWord[0],
2711 irsp->un.ulpWord[1],
2712 irsp->un.ulpWord[2],
2713 irsp->un.ulpWord[3],
2714 irsp->un.ulpWord[4],
2715 irsp->un.ulpWord[5],
2716 *(((uint32_t *) irsp) + 6),
2717 *(((uint32_t *) irsp) + 7),
2718 *(((uint32_t *) irsp) + 8),
2719 *(((uint32_t *) irsp) + 9),
2720 *(((uint32_t *) irsp) + 10),
2721 *(((uint32_t *) irsp) + 11),
2722 *(((uint32_t *) irsp) + 12),
2723 *(((uint32_t *) irsp) + 13),
2724 *(((uint32_t *) irsp) + 14),
2725 *(((uint32_t *) irsp) + 15));
2726 }
2727
2728 /*
2729 * Fetch the IOCB command type and call the correct completion
2730 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2731 * get freed back to the lpfc_iocb_list by the discovery
2732 * kernel thread.
2733 */
2734 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2735 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2736 switch (type) {
2737 case LPFC_SOL_IOCB:
2738 spin_unlock_irqrestore(&phba->hbalock, iflag);
2739 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2740 spin_lock_irqsave(&phba->hbalock, iflag);
2741 break;
2742
2743 case LPFC_UNSOL_IOCB:
2744 spin_unlock_irqrestore(&phba->hbalock, iflag);
2745 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2746 spin_lock_irqsave(&phba->hbalock, iflag);
2747 if (!rc)
2748 free_saveq = 0;
2749 break;
2750
2751 case LPFC_ABORT_IOCB:
2752 cmdiocbp = NULL;
2753 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2754 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2755 saveq);
2756 if (cmdiocbp) {
2757 /* Call the specified completion routine */
2758 if (cmdiocbp->iocb_cmpl) {
2759 spin_unlock_irqrestore(&phba->hbalock,
2760 iflag);
2761 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2762 saveq);
2763 spin_lock_irqsave(&phba->hbalock,
2764 iflag);
2765 } else
2766 __lpfc_sli_release_iocbq(phba,
2767 cmdiocbp);
2768 }
2769 break;
2770
2771 case LPFC_UNKNOWN_IOCB:
2772 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2773 char adaptermsg[LPFC_MAX_ADPTMSG];
2774 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2775 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2776 MAX_MSG_DATA);
2777 dev_warn(&((phba->pcidev)->dev),
2778 "lpfc%d: %s\n",
2779 phba->brd_no, adaptermsg);
2780 } else {
2781 /* Unknown IOCB command */
2782 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2783 "0335 Unknown IOCB "
2784 "command Data: x%x "
2785 "x%x x%x x%x\n",
2786 irsp->ulpCommand,
2787 irsp->ulpStatus,
2788 irsp->ulpIoTag,
2789 irsp->ulpContext);
2790 }
2791 break;
2792 }
2793
2794 if (free_saveq) {
2795 list_for_each_entry_safe(rspiocbp, next_iocb,
2796 &saveq->list, list) {
2797 list_del(&rspiocbp->list);
2798 __lpfc_sli_release_iocbq(phba, rspiocbp);
2799 }
2800 __lpfc_sli_release_iocbq(phba, saveq);
2801 }
2802 rspiocbp = NULL;
2803 }
2804 spin_unlock_irqrestore(&phba->hbalock, iflag);
2805 return rspiocbp;
2806}
2807
2808/**
2809 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04002810 * @phba: Pointer to HBA context object.
2811 * @pring: Pointer to driver SLI ring object.
2812 * @mask: Host attention register mask for this ring.
2813 *
James Smart3772a992009-05-22 14:50:54 -04002814 * This routine wraps the actual slow_ring event process routine from the
2815 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04002816 **/
James Smart3772a992009-05-22 14:50:54 -04002817void
James Smart2e0fef82007-06-17 19:56:36 -05002818lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2819 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002820{
James Smart3772a992009-05-22 14:50:54 -04002821 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2822}
2823
2824/**
2825 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2826 * @phba: Pointer to HBA context object.
2827 * @pring: Pointer to driver SLI ring object.
2828 * @mask: Host attention register mask for this ring.
2829 *
2830 * This function is called from the worker thread when there is a ring event
2831 * for non-fcp rings. The caller does not hold any lock. The function will
2832 * remove each response iocb in the response ring and calls the handle
2833 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2834 **/
2835static void
2836lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2837 struct lpfc_sli_ring *pring, uint32_t mask)
2838{
James Smart34b02dc2008-08-24 21:49:55 -04002839 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05002840 IOCB_t *entry;
2841 IOCB_t *irsp = NULL;
2842 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05002843 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05002844 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04002845 uint32_t status;
dea31012005-04-17 16:05:31 -05002846
James Smart34b02dc2008-08-24 21:49:55 -04002847 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05002848 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002849 pring->stats.iocb_event++;
2850
dea31012005-04-17 16:05:31 -05002851 /*
2852 * The next available response entry should never exceed the maximum
2853 * entries. If it does, treat it as an adapter hardware error.
2854 */
2855 portRspMax = pring->numRiocb;
2856 portRspPut = le32_to_cpu(pgp->rspPutInx);
2857 if (portRspPut >= portRspMax) {
2858 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002859 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05002860 * rsp ring <portRspMax>
2861 */
James Smarted957682007-06-17 19:56:37 -05002862 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002863 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002864 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002865 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05002866
James Smart2e0fef82007-06-17 19:56:36 -05002867 phba->link_state = LPFC_HBA_ERROR;
2868 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002869
2870 phba->work_hs = HS_FFER3;
2871 lpfc_handle_eratt(phba);
2872
James Smart3772a992009-05-22 14:50:54 -04002873 return;
dea31012005-04-17 16:05:31 -05002874 }
2875
2876 rmb();
dea31012005-04-17 16:05:31 -05002877 while (pring->rspidx != portRspPut) {
2878 /*
2879 * Build a completion list and call the appropriate handler.
2880 * The process is to get the next available response iocb, get
2881 * a free iocb from the list, copy the response data into the
2882 * free iocb, insert to the continuation list, and update the
2883 * next response index to slim. This process makes response
2884 * iocb's in the ring available to DMA as fast as possible but
2885 * pays a penalty for a copy operation. Since the iocb is
2886 * only 32 bytes, this penalty is considered small relative to
2887 * the PCI reads for register values and a slim write. When
2888 * the ulpLe field is set, the entire Command has been
2889 * received.
2890 */
James Smarted957682007-06-17 19:56:37 -05002891 entry = lpfc_resp_iocb(phba, pring);
2892
James Smart858c9f62007-06-17 19:56:39 -05002893 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05002894 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05002895 if (rspiocbp == NULL) {
2896 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07002897 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05002898 break;
2899 }
2900
James Smarted957682007-06-17 19:56:37 -05002901 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2902 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05002903 irsp = &rspiocbp->iocb;
2904
2905 if (++pring->rspidx >= portRspMax)
2906 pring->rspidx = 0;
2907
James Smarta58cbd52007-08-02 11:09:43 -04002908 if (pring->ringno == LPFC_ELS_RING) {
2909 lpfc_debugfs_slow_ring_trc(phba,
2910 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2911 *(((uint32_t *) irsp) + 4),
2912 *(((uint32_t *) irsp) + 6),
2913 *(((uint32_t *) irsp) + 7));
2914 }
2915
James Smarted957682007-06-17 19:56:37 -05002916 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002917
James Smart3772a992009-05-22 14:50:54 -04002918 spin_unlock_irqrestore(&phba->hbalock, iflag);
2919 /* Handle the response IOCB */
2920 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2921 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002922
2923 /*
2924 * If the port response put pointer has not been updated, sync
2925 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2926 * response put pointer.
2927 */
2928 if (pring->rspidx == portRspPut) {
2929 portRspPut = le32_to_cpu(pgp->rspPutInx);
2930 }
2931 } /* while (pring->rspidx != portRspPut) */
2932
James Smart92d7f7b2007-06-17 19:56:38 -05002933 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05002934 /* At least one response entry has been freed */
2935 pring->stats.iocb_rsp_full++;
2936 /* SET RxRE_RSP in Chip Att register */
2937 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2938 writel(status, phba->CAregaddr);
2939 readl(phba->CAregaddr); /* flush */
2940 }
2941 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2942 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2943 pring->stats.iocb_cmd_empty++;
2944
2945 /* Force update of the local copy of cmdGetInx */
2946 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2947 lpfc_sli_resume_iocb(phba, pring);
2948
2949 if ((pring->lpfc_sli_cmd_available))
2950 (pring->lpfc_sli_cmd_available) (phba, pring);
2951
2952 }
2953
James Smart2e0fef82007-06-17 19:56:36 -05002954 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002955 return;
dea31012005-04-17 16:05:31 -05002956}
2957
James Smarte59058c2008-08-24 21:49:00 -04002958/**
James Smart4f774512009-05-22 14:52:35 -04002959 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2960 * @phba: Pointer to HBA context object.
2961 * @pring: Pointer to driver SLI ring object.
2962 * @mask: Host attention register mask for this ring.
2963 *
2964 * This function is called from the worker thread when there is a pending
2965 * ELS response iocb on the driver internal slow-path response iocb worker
2966 * queue. The caller does not hold any lock. The function will remove each
2967 * response iocb from the response worker queue and calls the handle
2968 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2969 **/
2970static void
2971lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
2972 struct lpfc_sli_ring *pring, uint32_t mask)
2973{
2974 struct lpfc_iocbq *irspiocbq;
James Smart4d9ab992009-10-02 15:16:39 -04002975 struct hbq_dmabuf *dmabuf;
2976 struct lpfc_cq_event *cq_event;
James Smart4f774512009-05-22 14:52:35 -04002977 unsigned long iflag;
2978
James Smart45ed1192009-10-02 15:17:02 -04002979 spin_lock_irqsave(&phba->hbalock, iflag);
2980 phba->hba_flag &= ~HBA_SP_QUEUE_EVT;
2981 spin_unlock_irqrestore(&phba->hbalock, iflag);
2982 while (!list_empty(&phba->sli4_hba.sp_queue_event)) {
James Smart4f774512009-05-22 14:52:35 -04002983 /* Get the response iocb from the head of work queue */
2984 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart45ed1192009-10-02 15:17:02 -04002985 list_remove_head(&phba->sli4_hba.sp_queue_event,
James Smart4d9ab992009-10-02 15:16:39 -04002986 cq_event, struct lpfc_cq_event, list);
James Smart4f774512009-05-22 14:52:35 -04002987 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart4d9ab992009-10-02 15:16:39 -04002988
2989 switch (bf_get(lpfc_wcqe_c_code, &cq_event->cqe.wcqe_cmpl)) {
2990 case CQE_CODE_COMPL_WQE:
2991 irspiocbq = container_of(cq_event, struct lpfc_iocbq,
2992 cq_event);
James Smart45ed1192009-10-02 15:17:02 -04002993 /* Translate ELS WCQE to response IOCBQ */
2994 irspiocbq = lpfc_sli4_els_wcqe_to_rspiocbq(phba,
2995 irspiocbq);
2996 if (irspiocbq)
2997 lpfc_sli_sp_handle_rspiocb(phba, pring,
2998 irspiocbq);
James Smart4d9ab992009-10-02 15:16:39 -04002999 break;
3000 case CQE_CODE_RECEIVE:
3001 dmabuf = container_of(cq_event, struct hbq_dmabuf,
3002 cq_event);
3003 lpfc_sli4_handle_received_buffer(phba, dmabuf);
3004 break;
3005 default:
3006 break;
3007 }
James Smart4f774512009-05-22 14:52:35 -04003008 }
3009}
3010
3011/**
James Smart3621a712009-04-06 18:47:14 -04003012 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003013 * @phba: Pointer to HBA context object.
3014 * @pring: Pointer to driver SLI ring object.
3015 *
3016 * This function aborts all iocbs in the given ring and frees all the iocb
3017 * objects in txq. This function issues an abort iocb for all the iocb commands
3018 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3019 * the return of this function. The caller is not required to hold any locks.
3020 **/
James Smart2e0fef82007-06-17 19:56:36 -05003021void
dea31012005-04-17 16:05:31 -05003022lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3023{
James Smart2534ba72007-04-25 09:52:20 -04003024 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003025 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003026
James Smart92d7f7b2007-06-17 19:56:38 -05003027 if (pring->ringno == LPFC_ELS_RING) {
3028 lpfc_fabric_abort_hba(phba);
3029 }
3030
dea31012005-04-17 16:05:31 -05003031 /* Error everything on txq and txcmplq
3032 * First do the txq.
3033 */
James Smart2e0fef82007-06-17 19:56:36 -05003034 spin_lock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003035 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05003036 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05003037
3038 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04003039 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3040 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3041
James Smart2e0fef82007-06-17 19:56:36 -05003042 spin_unlock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003043
James Smarta257bf92009-04-06 18:48:10 -04003044 /* Cancel all the IOCBs from the completions list */
3045 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3046 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003047}
3048
James Smarte59058c2008-08-24 21:49:00 -04003049/**
James Smart3621a712009-04-06 18:47:14 -04003050 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003051 * @phba: Pointer to HBA context object.
3052 *
3053 * This function flushes all iocbs in the fcp ring and frees all the iocb
3054 * objects in txq and txcmplq. This function will not issue abort iocbs
3055 * for all the iocb commands in txcmplq, they will just be returned with
3056 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3057 * slot has been permanently disabled.
3058 **/
3059void
3060lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3061{
3062 LIST_HEAD(txq);
3063 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003064 struct lpfc_sli *psli = &phba->sli;
3065 struct lpfc_sli_ring *pring;
3066
3067 /* Currently, only one fcp ring */
3068 pring = &psli->ring[psli->fcp_ring];
3069
3070 spin_lock_irq(&phba->hbalock);
3071 /* Retrieve everything on txq */
3072 list_splice_init(&pring->txq, &txq);
3073 pring->txq_cnt = 0;
3074
3075 /* Retrieve everything on the txcmplq */
3076 list_splice_init(&pring->txcmplq, &txcmplq);
3077 pring->txcmplq_cnt = 0;
3078 spin_unlock_irq(&phba->hbalock);
3079
3080 /* Flush the txq */
James Smarta257bf92009-04-06 18:48:10 -04003081 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3082 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003083
3084 /* Flush the txcmpq */
James Smarta257bf92009-04-06 18:48:10 -04003085 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3086 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003087}
3088
3089/**
James Smart3772a992009-05-22 14:50:54 -04003090 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003091 * @phba: Pointer to HBA context object.
3092 * @mask: Bit mask to be checked.
3093 *
3094 * This function reads the host status register and compares
3095 * with the provided bit mask to check if HBA completed
3096 * the restart. This function will wait in a loop for the
3097 * HBA to complete restart. If the HBA does not restart within
3098 * 15 iterations, the function will reset the HBA again. The
3099 * function returns 1 when HBA fail to restart otherwise returns
3100 * zero.
3101 **/
James Smart3772a992009-05-22 14:50:54 -04003102static int
3103lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003104{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003105 uint32_t status;
3106 int i = 0;
3107 int retval = 0;
dea31012005-04-17 16:05:31 -05003108
Jamie Wellnitz41415862006-02-28 19:25:27 -05003109 /* Read the HBA Host Status Register */
3110 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003111
Jamie Wellnitz41415862006-02-28 19:25:27 -05003112 /*
3113 * Check status register every 100ms for 5 retries, then every
3114 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3115 * every 2.5 sec for 4.
3116 * Break our of the loop if errors occurred during init.
3117 */
3118 while (((status & mask) != mask) &&
3119 !(status & HS_FFERM) &&
3120 i++ < 20) {
dea31012005-04-17 16:05:31 -05003121
Jamie Wellnitz41415862006-02-28 19:25:27 -05003122 if (i <= 5)
3123 msleep(10);
3124 else if (i <= 10)
3125 msleep(500);
3126 else
3127 msleep(2500);
dea31012005-04-17 16:05:31 -05003128
Jamie Wellnitz41415862006-02-28 19:25:27 -05003129 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003130 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003131 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003132 lpfc_sli_brdrestart(phba);
3133 }
3134 /* Read the HBA Host Status Register */
3135 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003136 }
dea31012005-04-17 16:05:31 -05003137
Jamie Wellnitz41415862006-02-28 19:25:27 -05003138 /* Check to see if any errors occurred during init */
3139 if ((status & HS_FFERM) || (i >= 20)) {
James Smarte40a02c2010-02-26 14:13:54 -05003140 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3141 "2751 Adapter failed to restart, "
3142 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3143 status,
3144 readl(phba->MBslimaddr + 0xa8),
3145 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003146 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003147 retval = 1;
3148 }
dea31012005-04-17 16:05:31 -05003149
Jamie Wellnitz41415862006-02-28 19:25:27 -05003150 return retval;
dea31012005-04-17 16:05:31 -05003151}
3152
James Smartda0436e2009-05-22 14:51:39 -04003153/**
3154 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3155 * @phba: Pointer to HBA context object.
3156 * @mask: Bit mask to be checked.
3157 *
3158 * This function checks the host status register to check if HBA is
3159 * ready. This function will wait in a loop for the HBA to be ready
3160 * If the HBA is not ready , the function will will reset the HBA PCI
3161 * function again. The function returns 1 when HBA fail to be ready
3162 * otherwise returns zero.
3163 **/
3164static int
3165lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3166{
3167 uint32_t status;
3168 int retval = 0;
3169
3170 /* Read the HBA Host Status Register */
3171 status = lpfc_sli4_post_status_check(phba);
3172
3173 if (status) {
3174 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3175 lpfc_sli_brdrestart(phba);
3176 status = lpfc_sli4_post_status_check(phba);
3177 }
3178
3179 /* Check to see if any errors occurred during init */
3180 if (status) {
3181 phba->link_state = LPFC_HBA_ERROR;
3182 retval = 1;
3183 } else
3184 phba->sli4_hba.intr_enable = 0;
3185
3186 return retval;
3187}
3188
3189/**
3190 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3191 * @phba: Pointer to HBA context object.
3192 * @mask: Bit mask to be checked.
3193 *
3194 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3195 * from the API jump table function pointer from the lpfc_hba struct.
3196 **/
3197int
3198lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3199{
3200 return phba->lpfc_sli_brdready(phba, mask);
3201}
3202
James Smart92908312006-03-07 15:04:13 -05003203#define BARRIER_TEST_PATTERN (0xdeadbeef)
3204
James Smarte59058c2008-08-24 21:49:00 -04003205/**
James Smart3621a712009-04-06 18:47:14 -04003206 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003207 * @phba: Pointer to HBA context object.
3208 *
3209 * This function is called before resetting an HBA. This
3210 * function requests HBA to quiesce DMAs before a reset.
3211 **/
James Smart2e0fef82007-06-17 19:56:36 -05003212void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003213{
James Smart65a29c12006-07-06 15:50:50 -04003214 uint32_t __iomem *resp_buf;
3215 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003216 volatile uint32_t mbox;
3217 uint32_t hc_copy;
3218 int i;
3219 uint8_t hdrtype;
3220
3221 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3222 if (hdrtype != 0x80 ||
3223 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3224 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3225 return;
3226
3227 /*
3228 * Tell the other part of the chip to suspend temporarily all
3229 * its DMA activity.
3230 */
James Smart65a29c12006-07-06 15:50:50 -04003231 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003232
3233 /* Disable the error attention */
3234 hc_copy = readl(phba->HCregaddr);
3235 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3236 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003237 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003238
3239 if (readl(phba->HAregaddr) & HA_ERATT) {
3240 /* Clear Chip error bit */
3241 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003242 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003243 }
3244
3245 mbox = 0;
3246 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3247 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3248
3249 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003250 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003251 writel(mbox, mbox_buf);
3252
3253 for (i = 0;
3254 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3255 mdelay(1);
3256
3257 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003258 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003259 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003260 goto restore_hc;
3261 else
3262 goto clear_errat;
3263 }
3264
3265 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3266 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3267 mdelay(1);
3268
3269clear_errat:
3270
3271 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3272 mdelay(1);
3273
3274 if (readl(phba->HAregaddr) & HA_ERATT) {
3275 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003276 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003277 }
3278
3279restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003280 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003281 writel(hc_copy, phba->HCregaddr);
3282 readl(phba->HCregaddr); /* flush */
3283}
3284
James Smarte59058c2008-08-24 21:49:00 -04003285/**
James Smart3621a712009-04-06 18:47:14 -04003286 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003287 * @phba: Pointer to HBA context object.
3288 *
3289 * This function issues a kill_board mailbox command and waits for
3290 * the error attention interrupt. This function is called for stopping
3291 * the firmware processing. The caller is not required to hold any
3292 * locks. This function calls lpfc_hba_down_post function to free
3293 * any pending commands after the kill. The function will return 1 when it
3294 * fails to kill the board else will return 0.
3295 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003296int
James Smart2e0fef82007-06-17 19:56:36 -05003297lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003298{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003299 struct lpfc_sli *psli;
3300 LPFC_MBOXQ_t *pmb;
3301 uint32_t status;
3302 uint32_t ha_copy;
3303 int retval;
3304 int i = 0;
3305
3306 psli = &phba->sli;
3307
3308 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003309 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003310 "0329 Kill HBA Data: x%x x%x\n",
3311 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003312
James Smart98c9ea52007-10-27 13:37:33 -04003313 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3314 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003315 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003316
3317 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003318 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003319 status = readl(phba->HCregaddr);
3320 status &= ~HC_ERINT_ENA;
3321 writel(status, phba->HCregaddr);
3322 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003323 phba->link_flag |= LS_IGNORE_ERATT;
3324 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003325
3326 lpfc_kill_board(phba, pmb);
3327 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3328 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3329
3330 if (retval != MBX_SUCCESS) {
3331 if (retval != MBX_BUSY)
3332 mempool_free(pmb, phba->mbox_mem_pool);
James Smarte40a02c2010-02-26 14:13:54 -05003333 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
3334 "2752 KILL_BOARD command failed retval %d\n",
3335 retval);
James Smart2e0fef82007-06-17 19:56:36 -05003336 spin_lock_irq(&phba->hbalock);
3337 phba->link_flag &= ~LS_IGNORE_ERATT;
3338 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003339 return 1;
3340 }
3341
James Smartf4b4c682009-05-22 14:53:12 -04003342 spin_lock_irq(&phba->hbalock);
3343 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3344 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003345
Jamie Wellnitz41415862006-02-28 19:25:27 -05003346 mempool_free(pmb, phba->mbox_mem_pool);
3347
3348 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3349 * attention every 100ms for 3 seconds. If we don't get ERATT after
3350 * 3 seconds we still set HBA_ERROR state because the status of the
3351 * board is now undefined.
3352 */
3353 ha_copy = readl(phba->HAregaddr);
3354
3355 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3356 mdelay(100);
3357 ha_copy = readl(phba->HAregaddr);
3358 }
3359
3360 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003361 if (ha_copy & HA_ERATT) {
3362 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003363 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003364 }
James Smart2e0fef82007-06-17 19:56:36 -05003365 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003366 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003367 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003368 phba->link_flag &= ~LS_IGNORE_ERATT;
3369 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003370
Jamie Wellnitz41415862006-02-28 19:25:27 -05003371 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003372 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003373
James Smart2e0fef82007-06-17 19:56:36 -05003374 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003375}
3376
James Smarte59058c2008-08-24 21:49:00 -04003377/**
James Smart3772a992009-05-22 14:50:54 -04003378 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003379 * @phba: Pointer to HBA context object.
3380 *
3381 * This function resets the HBA by writing HC_INITFF to the control
3382 * register. After the HBA resets, this function resets all the iocb ring
3383 * indices. This function disables PCI layer parity checking during
3384 * the reset.
3385 * This function returns 0 always.
3386 * The caller is not required to hold any locks.
3387 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003388int
James Smart2e0fef82007-06-17 19:56:36 -05003389lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003390{
3391 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05003392 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003393 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05003394 int i;
dea31012005-04-17 16:05:31 -05003395
Jamie Wellnitz41415862006-02-28 19:25:27 -05003396 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05003397
Jamie Wellnitz41415862006-02-28 19:25:27 -05003398 /* Reset HBA */
3399 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003400 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003401 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05003402
3403 /* perform board reset */
3404 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003405 phba->link_events = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003406 phba->pport->fc_myDID = 0;
3407 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05003408
Jamie Wellnitz41415862006-02-28 19:25:27 -05003409 /* Turn off parity checking and serr during the physical reset */
3410 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3411 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3412 (cfg_value &
3413 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3414
James Smart3772a992009-05-22 14:50:54 -04003415 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3416
Jamie Wellnitz41415862006-02-28 19:25:27 -05003417 /* Now toggle INITFF bit in the Host Control Register */
3418 writel(HC_INITFF, phba->HCregaddr);
3419 mdelay(1);
3420 readl(phba->HCregaddr); /* flush */
3421 writel(0, phba->HCregaddr);
3422 readl(phba->HCregaddr); /* flush */
3423
3424 /* Restore PCI cmd register */
3425 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05003426
3427 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05003428 for (i = 0; i < psli->num_rings; i++) {
3429 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05003430 pring->flag = 0;
3431 pring->rspidx = 0;
3432 pring->next_cmdidx = 0;
3433 pring->local_getidx = 0;
3434 pring->cmdidx = 0;
3435 pring->missbufcnt = 0;
3436 }
dea31012005-04-17 16:05:31 -05003437
James Smart2e0fef82007-06-17 19:56:36 -05003438 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003439 return 0;
3440}
3441
James Smarte59058c2008-08-24 21:49:00 -04003442/**
James Smartda0436e2009-05-22 14:51:39 -04003443 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3444 * @phba: Pointer to HBA context object.
3445 *
3446 * This function resets a SLI4 HBA. This function disables PCI layer parity
3447 * checking during resets the device. The caller is not required to hold
3448 * any locks.
3449 *
3450 * This function returns 0 always.
3451 **/
3452int
3453lpfc_sli4_brdreset(struct lpfc_hba *phba)
3454{
3455 struct lpfc_sli *psli = &phba->sli;
3456 uint16_t cfg_value;
3457 uint8_t qindx;
3458
3459 /* Reset HBA */
3460 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3461 "0295 Reset HBA Data: x%x x%x\n",
3462 phba->pport->port_state, psli->sli_flag);
3463
3464 /* perform board reset */
3465 phba->fc_eventTag = 0;
James Smart4d9ab992009-10-02 15:16:39 -04003466 phba->link_events = 0;
James Smartda0436e2009-05-22 14:51:39 -04003467 phba->pport->fc_myDID = 0;
3468 phba->pport->fc_prevDID = 0;
3469
3470 /* Turn off parity checking and serr during the physical reset */
3471 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3472 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3473 (cfg_value &
3474 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3475
3476 spin_lock_irq(&phba->hbalock);
3477 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3478 phba->fcf.fcf_flag = 0;
3479 /* Clean up the child queue list for the CQs */
3480 list_del_init(&phba->sli4_hba.mbx_wq->list);
3481 list_del_init(&phba->sli4_hba.els_wq->list);
3482 list_del_init(&phba->sli4_hba.hdr_rq->list);
3483 list_del_init(&phba->sli4_hba.dat_rq->list);
3484 list_del_init(&phba->sli4_hba.mbx_cq->list);
3485 list_del_init(&phba->sli4_hba.els_cq->list);
James Smartda0436e2009-05-22 14:51:39 -04003486 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3487 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3488 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3489 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3490 spin_unlock_irq(&phba->hbalock);
3491
3492 /* Now physically reset the device */
3493 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3494 "0389 Performing PCI function reset!\n");
3495 /* Perform FCoE PCI function reset */
3496 lpfc_pci_function_reset(phba);
3497
3498 return 0;
3499}
3500
3501/**
3502 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04003503 * @phba: Pointer to HBA context object.
3504 *
3505 * This function is called in the SLI initialization code path to
3506 * restart the HBA. The caller is not required to hold any lock.
3507 * This function writes MBX_RESTART mailbox command to the SLIM and
3508 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3509 * function to free any pending commands. The function enables
3510 * POST only during the first initialization. The function returns zero.
3511 * The function does not guarantee completion of MBX_RESTART mailbox
3512 * command before the return of this function.
3513 **/
James Smartda0436e2009-05-22 14:51:39 -04003514static int
3515lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003516{
3517 MAILBOX_t *mb;
3518 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003519 volatile uint32_t word0;
3520 void __iomem *to_slim;
James Smart0d878412009-10-02 15:16:56 -04003521 uint32_t hba_aer_enabled;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003522
James Smart2e0fef82007-06-17 19:56:36 -05003523 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003524
James Smart0d878412009-10-02 15:16:56 -04003525 /* Take PCIe device Advanced Error Reporting (AER) state */
3526 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3527
Jamie Wellnitz41415862006-02-28 19:25:27 -05003528 psli = &phba->sli;
3529
3530 /* Restart HBA */
3531 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003532 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003533 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003534
3535 word0 = 0;
3536 mb = (MAILBOX_t *) &word0;
3537 mb->mbxCommand = MBX_RESTART;
3538 mb->mbxHc = 1;
3539
James Smart92908312006-03-07 15:04:13 -05003540 lpfc_reset_barrier(phba);
3541
Jamie Wellnitz41415862006-02-28 19:25:27 -05003542 to_slim = phba->MBslimaddr;
3543 writel(*(uint32_t *) mb, to_slim);
3544 readl(to_slim); /* flush */
3545
3546 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05003547 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003548 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05003549 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05003550 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04003551 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003552 writel(*(uint32_t *) mb, to_slim);
3553 readl(to_slim); /* flush */
3554
3555 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003556 phba->pport->stopped = 0;
3557 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04003558 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003559 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003560
James Smart64ba8812006-08-02 15:24:34 -04003561 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3562 psli->stats_start = get_seconds();
3563
James Smarteaf15d52008-12-04 22:39:29 -05003564 /* Give the INITFF and Post time to settle. */
3565 mdelay(100);
dea31012005-04-17 16:05:31 -05003566
James Smart0d878412009-10-02 15:16:56 -04003567 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3568 if (hba_aer_enabled)
3569 pci_disable_pcie_error_reporting(phba->pcidev);
3570
Jamie Wellnitz41415862006-02-28 19:25:27 -05003571 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05003572
3573 return 0;
3574}
3575
James Smarte59058c2008-08-24 21:49:00 -04003576/**
James Smartda0436e2009-05-22 14:51:39 -04003577 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3578 * @phba: Pointer to HBA context object.
3579 *
3580 * This function is called in the SLI initialization code path to restart
3581 * a SLI4 HBA. The caller is not required to hold any lock.
3582 * At the end of the function, it calls lpfc_hba_down_post function to
3583 * free any pending commands.
3584 **/
3585static int
3586lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3587{
3588 struct lpfc_sli *psli = &phba->sli;
James Smart75baf692010-06-08 18:31:21 -04003589 uint32_t hba_aer_enabled;
James Smartda0436e2009-05-22 14:51:39 -04003590
3591 /* Restart HBA */
3592 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3593 "0296 Restart HBA Data: x%x x%x\n",
3594 phba->pport->port_state, psli->sli_flag);
3595
James Smart75baf692010-06-08 18:31:21 -04003596 /* Take PCIe device Advanced Error Reporting (AER) state */
3597 hba_aer_enabled = phba->hba_flag & HBA_AER_ENABLED;
3598
James Smartda0436e2009-05-22 14:51:39 -04003599 lpfc_sli4_brdreset(phba);
3600
3601 spin_lock_irq(&phba->hbalock);
3602 phba->pport->stopped = 0;
3603 phba->link_state = LPFC_INIT_START;
3604 phba->hba_flag = 0;
3605 spin_unlock_irq(&phba->hbalock);
3606
3607 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3608 psli->stats_start = get_seconds();
3609
James Smart75baf692010-06-08 18:31:21 -04003610 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3611 if (hba_aer_enabled)
3612 pci_disable_pcie_error_reporting(phba->pcidev);
3613
James Smartda0436e2009-05-22 14:51:39 -04003614 lpfc_hba_down_post(phba);
3615
3616 return 0;
3617}
3618
3619/**
3620 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3621 * @phba: Pointer to HBA context object.
3622 *
3623 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3624 * API jump table function pointer from the lpfc_hba struct.
3625**/
3626int
3627lpfc_sli_brdrestart(struct lpfc_hba *phba)
3628{
3629 return phba->lpfc_sli_brdrestart(phba);
3630}
3631
3632/**
James Smart3621a712009-04-06 18:47:14 -04003633 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04003634 * @phba: Pointer to HBA context object.
3635 *
3636 * This function is called after a HBA restart to wait for successful
3637 * restart of the HBA. Successful restart of the HBA is indicated by
3638 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3639 * iteration, the function will restart the HBA again. The function returns
3640 * zero if HBA successfully restarted else returns negative error code.
3641 **/
dea31012005-04-17 16:05:31 -05003642static int
3643lpfc_sli_chipset_init(struct lpfc_hba *phba)
3644{
3645 uint32_t status, i = 0;
3646
3647 /* Read the HBA Host Status Register */
3648 status = readl(phba->HSregaddr);
3649
3650 /* Check status register to see what current state is */
3651 i = 0;
3652 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3653
3654 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3655 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3656 * 4.
3657 */
3658 if (i++ >= 20) {
3659 /* Adapter failed to init, timeout, status reg
3660 <status> */
James Smarted957682007-06-17 19:56:37 -05003661 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003662 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003663 "timeout, status reg x%x, "
3664 "FW Data: A8 x%x AC x%x\n", status,
3665 readl(phba->MBslimaddr + 0xa8),
3666 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003667 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003668 return -ETIMEDOUT;
3669 }
3670
3671 /* Check to see if any errors occurred during init */
3672 if (status & HS_FFERM) {
3673 /* ERROR: During chipset initialization */
3674 /* Adapter failed to init, chipset, status reg
3675 <status> */
James Smarted957682007-06-17 19:56:37 -05003676 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003677 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003678 "chipset, status reg x%x, "
3679 "FW Data: A8 x%x AC x%x\n", status,
3680 readl(phba->MBslimaddr + 0xa8),
3681 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003682 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003683 return -EIO;
3684 }
3685
3686 if (i <= 5) {
3687 msleep(10);
3688 } else if (i <= 10) {
3689 msleep(500);
3690 } else {
3691 msleep(2500);
3692 }
3693
3694 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003695 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003696 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003697 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003698 }
3699 /* Read the HBA Host Status Register */
3700 status = readl(phba->HSregaddr);
3701 }
3702
3703 /* Check to see if any errors occurred during init */
3704 if (status & HS_FFERM) {
3705 /* ERROR: During chipset initialization */
3706 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05003707 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003708 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05003709 "status reg x%x, "
3710 "FW Data: A8 x%x AC x%x\n", status,
3711 readl(phba->MBslimaddr + 0xa8),
3712 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003713 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003714 return -EIO;
3715 }
3716
3717 /* Clear all interrupt enable conditions */
3718 writel(0, phba->HCregaddr);
3719 readl(phba->HCregaddr); /* flush */
3720
3721 /* setup host attn register */
3722 writel(0xffffffff, phba->HAregaddr);
3723 readl(phba->HAregaddr); /* flush */
3724 return 0;
3725}
3726
James Smarte59058c2008-08-24 21:49:00 -04003727/**
James Smart3621a712009-04-06 18:47:14 -04003728 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04003729 *
3730 * This function calculates and returns the number of HBQs required to be
3731 * configured.
3732 **/
James Smart78b2d852007-08-02 11:10:21 -04003733int
James Smarted957682007-06-17 19:56:37 -05003734lpfc_sli_hbq_count(void)
3735{
James Smart92d7f7b2007-06-17 19:56:38 -05003736 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05003737}
3738
James Smarte59058c2008-08-24 21:49:00 -04003739/**
James Smart3621a712009-04-06 18:47:14 -04003740 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003741 *
3742 * This function adds the number of hbq entries in every HBQ to get
3743 * the total number of hbq entries required for the HBA and returns
3744 * the total count.
3745 **/
James Smarted957682007-06-17 19:56:37 -05003746static int
3747lpfc_sli_hbq_entry_count(void)
3748{
3749 int hbq_count = lpfc_sli_hbq_count();
3750 int count = 0;
3751 int i;
3752
3753 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05003754 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05003755 return count;
3756}
3757
James Smarte59058c2008-08-24 21:49:00 -04003758/**
James Smart3621a712009-04-06 18:47:14 -04003759 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003760 *
3761 * This function calculates amount of memory required for all hbq entries
3762 * to be configured and returns the total memory required.
3763 **/
dea31012005-04-17 16:05:31 -05003764int
James Smarted957682007-06-17 19:56:37 -05003765lpfc_sli_hbq_size(void)
3766{
3767 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3768}
3769
James Smarte59058c2008-08-24 21:49:00 -04003770/**
James Smart3621a712009-04-06 18:47:14 -04003771 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04003772 * @phba: Pointer to HBA context object.
3773 *
3774 * This function is called during the SLI initialization to configure
3775 * all the HBQs and post buffers to the HBQ. The caller is not
3776 * required to hold any locks. This function will return zero if successful
3777 * else it will return negative error code.
3778 **/
James Smarted957682007-06-17 19:56:37 -05003779static int
3780lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3781{
3782 int hbq_count = lpfc_sli_hbq_count();
3783 LPFC_MBOXQ_t *pmb;
3784 MAILBOX_t *pmbox;
3785 uint32_t hbqno;
3786 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05003787
James Smart92d7f7b2007-06-17 19:56:38 -05003788 /* Get a Mailbox buffer to setup mailbox
3789 * commands for HBA initialization
3790 */
James Smarted957682007-06-17 19:56:37 -05003791 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3792
3793 if (!pmb)
3794 return -ENOMEM;
3795
James Smart04c68492009-05-22 14:52:52 -04003796 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05003797
3798 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3799 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05003800 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05003801
3802 hbq_entry_index = 0;
3803 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3804 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3805 phba->hbqs[hbqno].hbqPutIdx = 0;
3806 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3807 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05003808 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04003809 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3810 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05003811 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3812
3813 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3814 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3815 mbxStatus <status>, ring <num> */
3816
3817 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05003818 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003819 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05003820 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003821 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05003822 pmbox->mbxStatus, hbqno);
3823
3824 phba->link_state = LPFC_HBA_ERROR;
3825 mempool_free(pmb, phba->mbox_mem_pool);
James Smart6e7288d2010-06-07 15:23:35 -04003826 return -ENXIO;
James Smarted957682007-06-17 19:56:37 -05003827 }
3828 }
3829 phba->hbq_count = hbq_count;
3830
James Smarted957682007-06-17 19:56:37 -05003831 mempool_free(pmb, phba->mbox_mem_pool);
3832
James Smart92d7f7b2007-06-17 19:56:38 -05003833 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04003834 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3835 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05003836 return 0;
3837}
3838
James Smarte59058c2008-08-24 21:49:00 -04003839/**
James Smart4f774512009-05-22 14:52:35 -04003840 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3841 * @phba: Pointer to HBA context object.
3842 *
3843 * This function is called during the SLI initialization to configure
3844 * all the HBQs and post buffers to the HBQ. The caller is not
3845 * required to hold any locks. This function will return zero if successful
3846 * else it will return negative error code.
3847 **/
3848static int
3849lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3850{
3851 phba->hbq_in_use = 1;
3852 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3853 phba->hbq_count = 1;
3854 /* Initially populate or replenish the HBQs */
3855 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3856 return 0;
3857}
3858
3859/**
James Smart3621a712009-04-06 18:47:14 -04003860 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003861 * @phba: Pointer to HBA context object.
3862 * @sli_mode: sli mode - 2/3
3863 *
3864 * This function is called by the sli intialization code path
3865 * to issue config_port mailbox command. This function restarts the
3866 * HBA firmware and issues a config_port mailbox command to configure
3867 * the SLI interface in the sli mode specified by sli_mode
3868 * variable. The caller is not required to hold any locks.
3869 * The function returns 0 if successful, else returns negative error
3870 * code.
3871 **/
James Smart93996272008-08-24 21:50:30 -04003872int
3873lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05003874{
3875 LPFC_MBOXQ_t *pmb;
3876 uint32_t resetcount = 0, rc = 0, done = 0;
3877
3878 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3879 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05003880 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003881 return -ENOMEM;
3882 }
3883
James Smarted957682007-06-17 19:56:37 -05003884 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05003885 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05003886 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003887 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003888 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05003889 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003890 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003891 rc = lpfc_sli_chipset_init(phba);
3892 if (rc)
3893 break;
3894
James Smart2e0fef82007-06-17 19:56:36 -05003895 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003896 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003897 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05003898 resetcount++;
3899
James Smarted957682007-06-17 19:56:37 -05003900 /* Call pre CONFIG_PORT mailbox command initialization. A
3901 * value of 0 means the call was successful. Any other
3902 * nonzero value is a failure, but if ERESTART is returned,
3903 * the driver may reset the HBA and try again.
3904 */
dea31012005-04-17 16:05:31 -05003905 rc = lpfc_config_port_prep(phba);
3906 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05003907 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05003908 continue;
James Smart34b02dc2008-08-24 21:49:55 -04003909 } else if (rc)
dea31012005-04-17 16:05:31 -05003910 break;
James Smart2e0fef82007-06-17 19:56:36 -05003911 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05003912 lpfc_config_port(phba, pmb);
3913 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04003914 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3915 LPFC_SLI3_HBQ_ENABLED |
3916 LPFC_SLI3_CRP_ENABLED |
James Smartbc739052010-08-04 16:11:18 -04003917 LPFC_SLI3_BG_ENABLED |
3918 LPFC_SLI3_DSS_ENABLED);
James Smarted957682007-06-17 19:56:37 -05003919 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05003920 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003921 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05003922 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04003923 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05003924 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04003925 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003926 spin_unlock_irq(&phba->hbalock);
3927 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04003928 } else {
3929 /* Allow asynchronous mailbox command to go through */
3930 spin_lock_irq(&phba->hbalock);
3931 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3932 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05003933 done = 1;
James Smart04c68492009-05-22 14:52:52 -04003934 }
dea31012005-04-17 16:05:31 -05003935 }
James Smarted957682007-06-17 19:56:37 -05003936 if (!done) {
3937 rc = -EINVAL;
3938 goto do_prep_failed;
3939 }
James Smart04c68492009-05-22 14:52:52 -04003940 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3941 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04003942 rc = -ENXIO;
3943 goto do_prep_failed;
3944 }
James Smart04c68492009-05-22 14:52:52 -04003945 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04003946 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003947 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3948 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3949 phba->max_vpi : phba->max_vports;
3950
James Smart34b02dc2008-08-24 21:49:55 -04003951 } else
3952 phba->max_vpi = 0;
James Smartbc739052010-08-04 16:11:18 -04003953 phba->fips_level = 0;
3954 phba->fips_spec_rev = 0;
3955 if (pmb->u.mb.un.varCfgPort.gdss) {
James Smart04c68492009-05-22 14:52:52 -04003956 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
James Smartbc739052010-08-04 16:11:18 -04003957 phba->fips_level = pmb->u.mb.un.varCfgPort.fips_level;
3958 phba->fips_spec_rev = pmb->u.mb.un.varCfgPort.fips_rev;
3959 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3960 "2850 Security Crypto Active. FIPS x%d "
3961 "(Spec Rev: x%d)",
3962 phba->fips_level, phba->fips_spec_rev);
3963 }
3964 if (pmb->u.mb.un.varCfgPort.sec_err) {
3965 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3966 "2856 Config Port Security Crypto "
3967 "Error: x%x ",
3968 pmb->u.mb.un.varCfgPort.sec_err);
3969 }
James Smart04c68492009-05-22 14:52:52 -04003970 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04003971 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003972 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04003973 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart6e7288d2010-06-07 15:23:35 -04003974
3975 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
3976 phba->port_gp = phba->mbox->us.s3_pgp.port;
James Smarte2a0a9d2008-12-04 22:40:02 -05003977
3978 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04003979 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05003980 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3981 else
3982 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3983 "0443 Adapter did not grant "
3984 "BlockGuard\n");
3985 }
James Smart34b02dc2008-08-24 21:49:55 -04003986 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05003987 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04003988 phba->port_gp = phba->mbox->us.s2.port;
James Smartd7c255b2008-08-24 21:50:00 -04003989 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05003990 }
James Smart92d7f7b2007-06-17 19:56:38 -05003991do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05003992 mempool_free(pmb, phba->mbox_mem_pool);
3993 return rc;
3994}
3995
James Smarte59058c2008-08-24 21:49:00 -04003996
3997/**
James Smart3621a712009-04-06 18:47:14 -04003998 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04003999 * @phba: Pointer to HBA context object.
4000 *
4001 * This function is the main SLI intialization function. This function
4002 * is called by the HBA intialization code, HBA reset code and HBA
4003 * error attention handler code. Caller is not required to hold any
4004 * locks. This function issues config_port mailbox command to configure
4005 * the SLI, setup iocb rings and HBQ rings. In the end the function
4006 * calls the config_port_post function to issue init_link mailbox
4007 * command and to start the discovery. The function will return zero
4008 * if successful, else it will return negative error code.
4009 **/
James Smarted957682007-06-17 19:56:37 -05004010int
4011lpfc_sli_hba_setup(struct lpfc_hba *phba)
4012{
4013 uint32_t rc;
James Smart92d7f7b2007-06-17 19:56:38 -05004014 int mode = 3;
James Smarted957682007-06-17 19:56:37 -05004015
4016 switch (lpfc_sli_mode) {
4017 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004018 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004019 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004020 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004021 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04004022 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004023 break;
4024 }
James Smarted957682007-06-17 19:56:37 -05004025 mode = 2;
4026 break;
4027 case 0:
4028 case 3:
4029 break;
4030 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004031 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004032 "1819 Unrecognized lpfc_sli_mode "
4033 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004034
4035 break;
4036 }
4037
James Smart93996272008-08-24 21:50:30 -04004038 rc = lpfc_sli_config_port(phba, mode);
4039
James Smarted957682007-06-17 19:56:37 -05004040 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004041 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004042 "1820 Unable to select SLI-3. "
4043 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004044 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004045 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05004046 if (rc)
dea31012005-04-17 16:05:31 -05004047 goto lpfc_sli_hba_setup_error;
4048
James Smart0d878412009-10-02 15:16:56 -04004049 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4050 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4051 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4052 if (!rc) {
4053 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4054 "2709 This device supports "
4055 "Advanced Error Reporting (AER)\n");
4056 spin_lock_irq(&phba->hbalock);
4057 phba->hba_flag |= HBA_AER_ENABLED;
4058 spin_unlock_irq(&phba->hbalock);
4059 } else {
4060 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4061 "2708 This device does not support "
4062 "Advanced Error Reporting (AER)\n");
4063 phba->cfg_aer_support = 0;
4064 }
4065 }
4066
James Smarted957682007-06-17 19:56:37 -05004067 if (phba->sli_rev == 3) {
4068 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4069 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004070 } else {
4071 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4072 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004073 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004074 }
4075
4076 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004077 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4078 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004079 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004080
4081 if (rc)
4082 goto lpfc_sli_hba_setup_error;
4083
James Smart93996272008-08-24 21:50:30 -04004084 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004085 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4086 rc = lpfc_sli_hbq_setup(phba);
4087 if (rc)
4088 goto lpfc_sli_hba_setup_error;
4089 }
James Smart04c68492009-05-22 14:52:52 -04004090 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004091 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004092 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004093
4094 rc = lpfc_config_port_post(phba);
4095 if (rc)
4096 goto lpfc_sli_hba_setup_error;
4097
James Smarted957682007-06-17 19:56:37 -05004098 return rc;
4099
James Smart92d7f7b2007-06-17 19:56:38 -05004100lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004101 phba->link_state = LPFC_HBA_ERROR;
James Smarte40a02c2010-02-26 14:13:54 -05004102 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004103 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004104 return rc;
4105}
4106
James Smartda0436e2009-05-22 14:51:39 -04004107/**
4108 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4109 * @phba: Pointer to HBA context object.
4110 * @mboxq: mailbox pointer.
4111 * This function issue a dump mailbox command to read config region
4112 * 23 and parse the records in the region and populate driver
4113 * data structure.
4114 **/
4115static int
4116lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4117 LPFC_MBOXQ_t *mboxq)
4118{
4119 struct lpfc_dmabuf *mp;
4120 struct lpfc_mqe *mqe;
4121 uint32_t data_length;
4122 int rc;
4123
4124 /* Program the default value of vlan_id and fc_map */
4125 phba->valid_vlan = 0;
4126 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4127 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4128 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4129
4130 mqe = &mboxq->u.mqe;
4131 if (lpfc_dump_fcoe_param(phba, mboxq))
4132 return -ENOMEM;
4133
4134 mp = (struct lpfc_dmabuf *) mboxq->context1;
4135 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4136
4137 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4138 "(%d):2571 Mailbox cmd x%x Status x%x "
4139 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4140 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4141 "CQ: x%x x%x x%x x%x\n",
4142 mboxq->vport ? mboxq->vport->vpi : 0,
4143 bf_get(lpfc_mqe_command, mqe),
4144 bf_get(lpfc_mqe_status, mqe),
4145 mqe->un.mb_words[0], mqe->un.mb_words[1],
4146 mqe->un.mb_words[2], mqe->un.mb_words[3],
4147 mqe->un.mb_words[4], mqe->un.mb_words[5],
4148 mqe->un.mb_words[6], mqe->un.mb_words[7],
4149 mqe->un.mb_words[8], mqe->un.mb_words[9],
4150 mqe->un.mb_words[10], mqe->un.mb_words[11],
4151 mqe->un.mb_words[12], mqe->un.mb_words[13],
4152 mqe->un.mb_words[14], mqe->un.mb_words[15],
4153 mqe->un.mb_words[16], mqe->un.mb_words[50],
4154 mboxq->mcqe.word0,
4155 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4156 mboxq->mcqe.trailer);
4157
4158 if (rc) {
4159 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4160 kfree(mp);
4161 return -EIO;
4162 }
4163 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004164 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004165 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4166 kfree(mp);
James Smartda0436e2009-05-22 14:51:39 -04004167 return -EIO;
James Smartd11e31d2009-06-10 17:23:06 -04004168 }
James Smartda0436e2009-05-22 14:51:39 -04004169
4170 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4171 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4172 kfree(mp);
4173 return 0;
4174}
4175
4176/**
4177 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4178 * @phba: pointer to lpfc hba data structure.
4179 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4180 * @vpd: pointer to the memory to hold resulting port vpd data.
4181 * @vpd_size: On input, the number of bytes allocated to @vpd.
4182 * On output, the number of data bytes in @vpd.
4183 *
4184 * This routine executes a READ_REV SLI4 mailbox command. In
4185 * addition, this routine gets the port vpd data.
4186 *
4187 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -02004188 * 0 - successful
James Smartda0436e2009-05-22 14:51:39 -04004189 * ENOMEM - could not allocated memory.
4190 **/
4191static int
4192lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4193 uint8_t *vpd, uint32_t *vpd_size)
4194{
4195 int rc = 0;
4196 uint32_t dma_size;
4197 struct lpfc_dmabuf *dmabuf;
4198 struct lpfc_mqe *mqe;
4199
4200 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4201 if (!dmabuf)
4202 return -ENOMEM;
4203
4204 /*
4205 * Get a DMA buffer for the vpd data resulting from the READ_REV
4206 * mailbox command.
4207 */
4208 dma_size = *vpd_size;
4209 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4210 dma_size,
4211 &dmabuf->phys,
4212 GFP_KERNEL);
4213 if (!dmabuf->virt) {
4214 kfree(dmabuf);
4215 return -ENOMEM;
4216 }
4217 memset(dmabuf->virt, 0, dma_size);
4218
4219 /*
4220 * The SLI4 implementation of READ_REV conflicts at word1,
4221 * bits 31:16 and SLI4 adds vpd functionality not present
4222 * in SLI3. This code corrects the conflicts.
4223 */
4224 lpfc_read_rev(phba, mboxq);
4225 mqe = &mboxq->u.mqe;
4226 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4227 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4228 mqe->un.read_rev.word1 &= 0x0000FFFF;
4229 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4230 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4231
4232 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4233 if (rc) {
4234 dma_free_coherent(&phba->pcidev->dev, dma_size,
4235 dmabuf->virt, dmabuf->phys);
James Smartdef9c7a2009-12-21 17:02:28 -05004236 kfree(dmabuf);
James Smartda0436e2009-05-22 14:51:39 -04004237 return -EIO;
4238 }
4239
James Smartda0436e2009-05-22 14:51:39 -04004240 /*
4241 * The available vpd length cannot be bigger than the
4242 * DMA buffer passed to the port. Catch the less than
4243 * case and update the caller's size.
4244 */
4245 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4246 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4247
James Smartd7c47992010-06-08 18:31:54 -04004248 memcpy(vpd, dmabuf->virt, *vpd_size);
4249
James Smartda0436e2009-05-22 14:51:39 -04004250 dma_free_coherent(&phba->pcidev->dev, dma_size,
4251 dmabuf->virt, dmabuf->phys);
4252 kfree(dmabuf);
4253 return 0;
4254}
4255
4256/**
4257 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4258 * @phba: pointer to lpfc hba data structure.
4259 *
4260 * This routine is called to explicitly arm the SLI4 device's completion and
4261 * event queues
4262 **/
4263static void
4264lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4265{
4266 uint8_t fcp_eqidx;
4267
4268 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4269 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
James Smartda0436e2009-05-22 14:51:39 -04004270 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4271 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4272 LPFC_QUEUE_REARM);
4273 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4274 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4275 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4276 LPFC_QUEUE_REARM);
4277}
4278
4279/**
4280 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4281 * @phba: Pointer to HBA context object.
4282 *
4283 * This function is the main SLI4 device intialization PCI function. This
4284 * function is called by the HBA intialization code, HBA reset code and
4285 * HBA error attention handler code. Caller is not required to hold any
4286 * locks.
4287 **/
4288int
4289lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4290{
4291 int rc;
4292 LPFC_MBOXQ_t *mboxq;
4293 struct lpfc_mqe *mqe;
4294 uint8_t *vpd;
4295 uint32_t vpd_size;
4296 uint32_t ftr_rsp = 0;
4297 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4298 struct lpfc_vport *vport = phba->pport;
4299 struct lpfc_dmabuf *mp;
4300
4301 /* Perform a PCI function reset to start from clean */
4302 rc = lpfc_pci_function_reset(phba);
4303 if (unlikely(rc))
4304 return -ENODEV;
4305
4306 /* Check the HBA Host Status Register for readyness */
4307 rc = lpfc_sli4_post_status_check(phba);
4308 if (unlikely(rc))
4309 return -ENODEV;
4310 else {
4311 spin_lock_irq(&phba->hbalock);
4312 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4313 spin_unlock_irq(&phba->hbalock);
4314 }
4315
4316 /*
4317 * Allocate a single mailbox container for initializing the
4318 * port.
4319 */
4320 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4321 if (!mboxq)
4322 return -ENOMEM;
4323
4324 /*
4325 * Continue initialization with default values even if driver failed
4326 * to read FCoE param config regions
4327 */
4328 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4329 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
James Smarte4e74272009-07-19 10:01:38 -04004330 "2570 Failed to read FCoE parameters\n");
James Smartda0436e2009-05-22 14:51:39 -04004331
4332 /* Issue READ_REV to collect vpd and FW information. */
James Smart49198b32010-04-06 15:04:33 -04004333 vpd_size = SLI4_PAGE_SIZE;
James Smartda0436e2009-05-22 14:51:39 -04004334 vpd = kzalloc(vpd_size, GFP_KERNEL);
4335 if (!vpd) {
4336 rc = -ENOMEM;
4337 goto out_free_mbox;
4338 }
4339
4340 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4341 if (unlikely(rc))
4342 goto out_free_vpd;
4343
4344 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04004345 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4346 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4347 phba->hba_flag |= HBA_FCOE_SUPPORT;
James Smart45ed1192009-10-02 15:17:02 -04004348
4349 if (bf_get(lpfc_mbx_rd_rev_cee_ver, &mqe->un.read_rev) ==
4350 LPFC_DCBX_CEE_MODE)
4351 phba->hba_flag |= HBA_FIP_SUPPORT;
4352 else
4353 phba->hba_flag &= ~HBA_FIP_SUPPORT;
4354
James Smartf1126682009-06-10 17:22:44 -04004355 if (phba->sli_rev != LPFC_SLI_REV4 ||
4356 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
James Smartda0436e2009-05-22 14:51:39 -04004357 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4358 "0376 READ_REV Error. SLI Level %d "
4359 "FCoE enabled %d\n",
James Smartf1126682009-06-10 17:22:44 -04004360 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
James Smartda0436e2009-05-22 14:51:39 -04004361 rc = -EIO;
4362 goto out_free_vpd;
4363 }
James Smartda0436e2009-05-22 14:51:39 -04004364 /*
4365 * Evaluate the read rev and vpd data. Populate the driver
4366 * state with the results. If this routine fails, the failure
4367 * is not fatal as the driver will use generic values.
4368 */
4369 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4370 if (unlikely(!rc)) {
4371 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4372 "0377 Error %d parsing vpd. "
4373 "Using defaults.\n", rc);
4374 rc = 0;
4375 }
4376
James Smartf1126682009-06-10 17:22:44 -04004377 /* Save information as VPD data */
4378 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4379 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4380 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4381 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4382 &mqe->un.read_rev);
4383 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4384 &mqe->un.read_rev);
4385 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4386 &mqe->un.read_rev);
4387 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4388 &mqe->un.read_rev);
4389 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4390 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4391 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4392 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4393 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4394 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4395 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4396 "(%d):0380 READ_REV Status x%x "
4397 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4398 mboxq->vport ? mboxq->vport->vpi : 0,
4399 bf_get(lpfc_mqe_status, mqe),
4400 phba->vpd.rev.opFwName,
4401 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4402 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04004403
4404 /*
4405 * Discover the port's supported feature set and match it against the
4406 * hosts requests.
4407 */
4408 lpfc_request_features(phba, mboxq);
4409 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4410 if (unlikely(rc)) {
4411 rc = -EIO;
4412 goto out_free_vpd;
4413 }
4414
4415 /*
4416 * The port must support FCP initiator mode as this is the
4417 * only mode running in the host.
4418 */
4419 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4420 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4421 "0378 No support for fcpi mode.\n");
4422 ftr_rsp++;
4423 }
4424
4425 /*
4426 * If the port cannot support the host's requested features
4427 * then turn off the global config parameters to disable the
4428 * feature in the driver. This is not a fatal error.
4429 */
4430 if ((phba->cfg_enable_bg) &&
4431 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4432 ftr_rsp++;
4433
4434 if (phba->max_vpi && phba->cfg_enable_npiv &&
4435 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4436 ftr_rsp++;
4437
4438 if (ftr_rsp) {
4439 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4440 "0379 Feature Mismatch Data: x%08x %08x "
4441 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4442 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4443 phba->cfg_enable_npiv, phba->max_vpi);
4444 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4445 phba->cfg_enable_bg = 0;
4446 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4447 phba->cfg_enable_npiv = 0;
4448 }
4449
4450 /* These SLI3 features are assumed in SLI4 */
4451 spin_lock_irq(&phba->hbalock);
4452 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4453 spin_unlock_irq(&phba->hbalock);
4454
4455 /* Read the port's service parameters. */
James Smart9f1177a2010-02-26 14:12:57 -05004456 rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
4457 if (rc) {
4458 phba->link_state = LPFC_HBA_ERROR;
4459 rc = -ENOMEM;
4460 goto out_free_vpd;
4461 }
4462
James Smartda0436e2009-05-22 14:51:39 -04004463 mboxq->vport = vport;
4464 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4465 mp = (struct lpfc_dmabuf *) mboxq->context1;
4466 if (rc == MBX_SUCCESS) {
4467 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4468 rc = 0;
4469 }
4470
4471 /*
4472 * This memory was allocated by the lpfc_read_sparam routine. Release
4473 * it to the mbuf pool.
4474 */
4475 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4476 kfree(mp);
4477 mboxq->context1 = NULL;
4478 if (unlikely(rc)) {
4479 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4480 "0382 READ_SPARAM command failed "
4481 "status %d, mbxStatus x%x\n",
4482 rc, bf_get(lpfc_mqe_status, mqe));
4483 phba->link_state = LPFC_HBA_ERROR;
4484 rc = -EIO;
4485 goto out_free_vpd;
4486 }
4487
4488 if (phba->cfg_soft_wwnn)
4489 u64_to_wwn(phba->cfg_soft_wwnn,
4490 vport->fc_sparam.nodeName.u.wwn);
4491 if (phba->cfg_soft_wwpn)
4492 u64_to_wwn(phba->cfg_soft_wwpn,
4493 vport->fc_sparam.portName.u.wwn);
4494 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4495 sizeof(struct lpfc_name));
4496 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4497 sizeof(struct lpfc_name));
4498
4499 /* Update the fc_host data structures with new wwn. */
4500 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4501 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4502
4503 /* Register SGL pool to the device using non-embedded mailbox command */
4504 rc = lpfc_sli4_post_sgl_list(phba);
4505 if (unlikely(rc)) {
4506 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004507 "0582 Error %d during sgl post operation\n",
4508 rc);
James Smartda0436e2009-05-22 14:51:39 -04004509 rc = -ENODEV;
4510 goto out_free_vpd;
4511 }
4512
4513 /* Register SCSI SGL pool to the device */
4514 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4515 if (unlikely(rc)) {
4516 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
James Smart6a9c52c2009-10-02 15:16:51 -04004517 "0383 Error %d during scsi sgl post "
4518 "operation\n", rc);
James Smartda0436e2009-05-22 14:51:39 -04004519 /* Some Scsi buffers were moved to the abort scsi list */
4520 /* A pci function reset will repost them */
4521 rc = -ENODEV;
4522 goto out_free_vpd;
4523 }
4524
4525 /* Post the rpi header region to the device. */
4526 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4527 if (unlikely(rc)) {
4528 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4529 "0393 Error %d during rpi post operation\n",
4530 rc);
4531 rc = -ENODEV;
4532 goto out_free_vpd;
4533 }
James Smartda0436e2009-05-22 14:51:39 -04004534
4535 /* Set up all the queues to the device */
4536 rc = lpfc_sli4_queue_setup(phba);
4537 if (unlikely(rc)) {
4538 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4539 "0381 Error %d during queue setup.\n ", rc);
4540 goto out_stop_timers;
4541 }
4542
4543 /* Arm the CQs and then EQs on device */
4544 lpfc_sli4_arm_cqeq_intr(phba);
4545
4546 /* Indicate device interrupt mode */
4547 phba->sli4_hba.intr_enable = 1;
4548
4549 /* Allow asynchronous mailbox command to go through */
4550 spin_lock_irq(&phba->hbalock);
4551 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4552 spin_unlock_irq(&phba->hbalock);
4553
4554 /* Post receive buffers to the device */
4555 lpfc_sli4_rb_setup(phba);
4556
James Smartfc2b9892010-02-26 14:15:29 -05004557 /* Reset HBA FCF states after HBA reset */
4558 phba->fcf.fcf_flag = 0;
4559 phba->fcf.current_rec.flag = 0;
4560
James Smartda0436e2009-05-22 14:51:39 -04004561 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04004562 mod_timer(&vport->els_tmofunc,
4563 jiffies + HZ * (phba->fc_ratov * 2));
James Smartda0436e2009-05-22 14:51:39 -04004564
4565 /* Start heart beat timer */
4566 mod_timer(&phba->hb_tmofunc,
4567 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4568 phba->hb_outstanding = 0;
4569 phba->last_completion_time = jiffies;
4570
4571 /* Start error attention (ERATT) polling timer */
4572 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4573
James Smart75baf692010-06-08 18:31:21 -04004574 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4575 if (phba->cfg_aer_support == 1 && !(phba->hba_flag & HBA_AER_ENABLED)) {
4576 rc = pci_enable_pcie_error_reporting(phba->pcidev);
4577 if (!rc) {
4578 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4579 "2829 This device supports "
4580 "Advanced Error Reporting (AER)\n");
4581 spin_lock_irq(&phba->hbalock);
4582 phba->hba_flag |= HBA_AER_ENABLED;
4583 spin_unlock_irq(&phba->hbalock);
4584 } else {
4585 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
4586 "2830 This device does not support "
4587 "Advanced Error Reporting (AER)\n");
4588 phba->cfg_aer_support = 0;
4589 }
4590 }
4591
James Smartda0436e2009-05-22 14:51:39 -04004592 /*
4593 * The port is ready, set the host's link state to LINK_DOWN
4594 * in preparation for link interrupts.
4595 */
4596 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4597 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4598 lpfc_set_loopback_flag(phba);
4599 /* Change driver state to LPFC_LINK_DOWN right before init link */
4600 spin_lock_irq(&phba->hbalock);
4601 phba->link_state = LPFC_LINK_DOWN;
4602 spin_unlock_irq(&phba->hbalock);
4603 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4604 if (unlikely(rc != MBX_NOT_FINISHED)) {
4605 kfree(vpd);
4606 return 0;
4607 } else
4608 rc = -EIO;
4609
4610 /* Unset all the queues set up in this routine when error out */
4611 if (rc)
4612 lpfc_sli4_queue_unset(phba);
4613
4614out_stop_timers:
4615 if (rc)
4616 lpfc_stop_hba_timers(phba);
4617out_free_vpd:
4618 kfree(vpd);
4619out_free_mbox:
4620 mempool_free(mboxq, phba->mbox_mem_pool);
4621 return rc;
4622}
James Smarte59058c2008-08-24 21:49:00 -04004623
4624/**
James Smart3621a712009-04-06 18:47:14 -04004625 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04004626 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05004627 *
James Smarte59058c2008-08-24 21:49:00 -04004628 * This is the callback function for mailbox timer. The mailbox
4629 * timer is armed when a new mailbox command is issued and the timer
4630 * is deleted when the mailbox complete. The function is called by
4631 * the kernel timer code when a mailbox does not complete within
4632 * expected time. This function wakes up the worker thread to
4633 * process the mailbox timeout and returns. All the processing is
4634 * done by the worker thread function lpfc_mbox_timeout_handler.
4635 **/
dea31012005-04-17 16:05:31 -05004636void
4637lpfc_mbox_timeout(unsigned long ptr)
4638{
James Smart92d7f7b2007-06-17 19:56:38 -05004639 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05004640 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05004641 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05004642
James Smart2e0fef82007-06-17 19:56:36 -05004643 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05004644 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05004645 if (!tmo_posted)
4646 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4647 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4648
James Smart5e9d9b82008-06-14 22:52:53 -04004649 if (!tmo_posted)
4650 lpfc_worker_wake_up(phba);
4651 return;
dea31012005-04-17 16:05:31 -05004652}
4653
James Smarte59058c2008-08-24 21:49:00 -04004654
4655/**
James Smart3621a712009-04-06 18:47:14 -04004656 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04004657 * @phba: Pointer to HBA context object.
4658 *
4659 * This function is called from worker thread when a mailbox command times out.
4660 * The caller is not required to hold any locks. This function will reset the
4661 * HBA and recover all the pending commands.
4662 **/
dea31012005-04-17 16:05:31 -05004663void
4664lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4665{
James Smart2e0fef82007-06-17 19:56:36 -05004666 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04004667 MAILBOX_t *mb = &pmbox->u.mb;
James Smart1dcb58e2007-04-25 09:51:30 -04004668 struct lpfc_sli *psli = &phba->sli;
4669 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05004670
James Smarta257bf92009-04-06 18:48:10 -04004671 /* Check the pmbox pointer first. There is a race condition
4672 * between the mbox timeout handler getting executed in the
4673 * worklist and the mailbox actually completing. When this
4674 * race condition occurs, the mbox_active will be NULL.
4675 */
4676 spin_lock_irq(&phba->hbalock);
4677 if (pmbox == NULL) {
4678 lpfc_printf_log(phba, KERN_WARNING,
4679 LOG_MBOX | LOG_SLI,
4680 "0353 Active Mailbox cleared - mailbox timeout "
4681 "exiting\n");
4682 spin_unlock_irq(&phba->hbalock);
4683 return;
4684 }
4685
dea31012005-04-17 16:05:31 -05004686 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05004687 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004688 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004689 mb->mbxCommand,
4690 phba->pport->port_state,
4691 phba->sli.sli_flag,
4692 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04004693 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004694
James Smart1dcb58e2007-04-25 09:51:30 -04004695 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4696 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4697 * it to fail all oustanding SCSI IO.
4698 */
James Smart2e0fef82007-06-17 19:56:36 -05004699 spin_lock_irq(&phba->pport->work_port_lock);
4700 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4701 spin_unlock_irq(&phba->pport->work_port_lock);
4702 spin_lock_irq(&phba->hbalock);
4703 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04004704 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004705 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04004706
4707 pring = &psli->ring[psli->fcp_ring];
4708 lpfc_sli_abort_iocb_ring(phba, pring);
4709
4710 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04004711 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04004712
4713 /* Reset the HBA device */
4714 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05004715}
4716
James Smarte59058c2008-08-24 21:49:00 -04004717/**
James Smart3772a992009-05-22 14:50:54 -04004718 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04004719 * @phba: Pointer to HBA context object.
4720 * @pmbox: Pointer to mailbox object.
4721 * @flag: Flag indicating how the mailbox need to be processed.
4722 *
4723 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04004724 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4725 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04004726 * The mailbox command can be submitted in polling mode, in which case
4727 * this function will wait in a polling loop for the completion of the
4728 * mailbox.
4729 * If the mailbox is submitted in no_wait mode (not polling) the
4730 * function will submit the command and returns immediately without waiting
4731 * for the mailbox completion. The no_wait is supported only when HBA
4732 * is in SLI2/SLI3 mode - interrupts are enabled.
4733 * The SLI interface allows only one mailbox pending at a time. If the
4734 * mailbox is issued in polling mode and there is already a mailbox
4735 * pending, then the function will return an error. If the mailbox is issued
4736 * in NO_WAIT mode and there is a mailbox pending already, the function
4737 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4738 * The sli layer owns the mailbox object until the completion of mailbox
4739 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4740 * return codes the caller owns the mailbox command after the return of
4741 * the function.
4742 **/
James Smart3772a992009-05-22 14:50:54 -04004743static int
4744lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4745 uint32_t flag)
dea31012005-04-17 16:05:31 -05004746{
dea31012005-04-17 16:05:31 -05004747 MAILBOX_t *mb;
James Smart2e0fef82007-06-17 19:56:36 -05004748 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05004749 uint32_t status, evtctr;
4750 uint32_t ha_copy;
4751 int i;
James Smart09372822008-01-11 01:52:54 -05004752 unsigned long timeout;
dea31012005-04-17 16:05:31 -05004753 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04004754 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05004755 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04004756 int processing_queue = 0;
4757
4758 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4759 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04004760 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04004761 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04004762 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4763 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4764 return MBX_SUCCESS;
4765 }
James Smart58da1ff2008-04-07 10:15:56 -04004766 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04004767 pmbox = lpfc_mbox_get(phba);
4768 if (!pmbox) {
4769 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4770 return MBX_SUCCESS;
4771 }
4772 }
dea31012005-04-17 16:05:31 -05004773
James Smarted957682007-06-17 19:56:37 -05004774 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05004775 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05004776 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04004777 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05004778 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004779 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004780 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04004781 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05004782 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04004783 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05004784 }
4785 }
4786
Linas Vepstas8d63f372007-02-14 14:28:36 -06004787 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04004788 if (unlikely(pci_channel_offline(phba->pcidev))) {
4789 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4790 goto out_not_finished;
4791 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06004792
James Smarta257bf92009-04-06 18:48:10 -04004793 /* If HBA has a deferred error attention, fail the iocb. */
4794 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4795 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4796 goto out_not_finished;
4797 }
4798
dea31012005-04-17 16:05:31 -05004799 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05004800
James Smart3772a992009-05-22 14:50:54 -04004801 mb = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05004802 status = MBX_SUCCESS;
4803
James Smart2e0fef82007-06-17 19:56:36 -05004804 if (phba->link_state == LPFC_HBA_ERROR) {
4805 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004806
4807 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004808 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4809 "(%d):0311 Mailbox command x%x cannot "
4810 "issue Data: x%x x%x\n",
4811 pmbox->vport ? pmbox->vport->vpi : 0,
4812 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004813 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004814 }
4815
James Smart92908312006-03-07 15:04:13 -05004816 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4817 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
James Smart2e0fef82007-06-17 19:56:36 -05004818 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smart3772a992009-05-22 14:50:54 -04004819 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4820 "(%d):2528 Mailbox command x%x cannot "
4821 "issue Data: x%x x%x\n",
4822 pmbox->vport ? pmbox->vport->vpi : 0,
4823 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004824 goto out_not_finished;
James Smart92908312006-03-07 15:04:13 -05004825 }
4826
dea31012005-04-17 16:05:31 -05004827 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4828 /* Polling for a mbox command when another one is already active
4829 * is not allowed in SLI. Also, the driver must have established
4830 * SLI2 mode to queue and process multiple mbox commands.
4831 */
4832
4833 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05004834 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004835
4836 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004837 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4838 "(%d):2529 Mailbox command x%x "
4839 "cannot issue Data: x%x x%x\n",
4840 pmbox->vport ? pmbox->vport->vpi : 0,
4841 pmbox->u.mb.mbxCommand,
4842 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004843 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004844 }
4845
James Smart3772a992009-05-22 14:50:54 -04004846 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05004847 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004848 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004849 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4850 "(%d):2530 Mailbox command x%x "
4851 "cannot issue Data: x%x x%x\n",
4852 pmbox->vport ? pmbox->vport->vpi : 0,
4853 pmbox->u.mb.mbxCommand,
4854 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004855 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004856 }
4857
dea31012005-04-17 16:05:31 -05004858 /* Another mailbox command is still being processed, queue this
4859 * command to be processed later.
4860 */
4861 lpfc_mbox_put(phba, pmbox);
4862
4863 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05004864 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004865 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05004866 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004867 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4868 mb->mbxCommand, phba->pport->port_state,
4869 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004870
4871 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05004872 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004873
James Smart858c9f62007-06-17 19:56:39 -05004874 if (pmbox->vport) {
4875 lpfc_debugfs_disc_trc(pmbox->vport,
4876 LPFC_DISC_TRC_MBOX_VPORT,
4877 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4878 (uint32_t)mb->mbxCommand,
4879 mb->un.varWords[0], mb->un.varWords[1]);
4880 }
4881 else {
4882 lpfc_debugfs_disc_trc(phba->pport,
4883 LPFC_DISC_TRC_MBOX,
4884 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4885 (uint32_t)mb->mbxCommand,
4886 mb->un.varWords[0], mb->un.varWords[1]);
4887 }
4888
James Smart2e0fef82007-06-17 19:56:36 -05004889 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05004890 }
4891
dea31012005-04-17 16:05:31 -05004892 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4893
4894 /* If we are not polling, we MUST be in SLI2 mode */
4895 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04004896 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Jamie Wellnitz41415862006-02-28 19:25:27 -05004897 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05004898 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004899 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004900 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004901 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4902 "(%d):2531 Mailbox command x%x "
4903 "cannot issue Data: x%x x%x\n",
4904 pmbox->vport ? pmbox->vport->vpi : 0,
4905 pmbox->u.mb.mbxCommand,
4906 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004907 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004908 }
4909 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04004910 mod_timer(&psli->mbox_tmo, (jiffies +
4911 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
dea31012005-04-17 16:05:31 -05004912 }
4913
4914 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05004915 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004916 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004917 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004918 pmbox->vport ? pmbox->vport->vpi : 0,
James Smart92d7f7b2007-06-17 19:56:38 -05004919 mb->mbxCommand, phba->pport->port_state,
4920 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004921
James Smart858c9f62007-06-17 19:56:39 -05004922 if (mb->mbxCommand != MBX_HEARTBEAT) {
4923 if (pmbox->vport) {
4924 lpfc_debugfs_disc_trc(pmbox->vport,
4925 LPFC_DISC_TRC_MBOX_VPORT,
4926 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4927 (uint32_t)mb->mbxCommand,
4928 mb->un.varWords[0], mb->un.varWords[1]);
4929 }
4930 else {
4931 lpfc_debugfs_disc_trc(phba->pport,
4932 LPFC_DISC_TRC_MBOX,
4933 "MBOX Send: cmd:x%x mb:x%x x%x",
4934 (uint32_t)mb->mbxCommand,
4935 mb->un.varWords[0], mb->un.varWords[1]);
4936 }
4937 }
4938
dea31012005-04-17 16:05:31 -05004939 psli->slistat.mbox_cmd++;
4940 evtctr = psli->slistat.mbox_event;
4941
4942 /* next set own bit for the adapter and copy over command word */
4943 mb->mbxOwner = OWN_CHIP;
4944
James Smart3772a992009-05-22 14:50:54 -04004945 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
James Smart7a470272010-03-15 11:25:20 -04004946 /* Populate mbox extension offset word. */
4947 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len) {
4948 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
4949 = (uint8_t *)phba->mbox_ext
4950 - (uint8_t *)phba->mbox;
4951 }
4952
4953 /* Copy the mailbox extension data */
4954 if (pmbox->in_ext_byte_len && pmbox->context2) {
4955 lpfc_sli_pcimem_bcopy(pmbox->context2,
4956 (uint8_t *)phba->mbox_ext,
4957 pmbox->in_ext_byte_len);
4958 }
4959 /* Copy command data to host SLIM area */
James Smart34b02dc2008-08-24 21:49:55 -04004960 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004961 } else {
James Smart7a470272010-03-15 11:25:20 -04004962 /* Populate mbox extension offset word. */
4963 if (pmbox->in_ext_byte_len || pmbox->out_ext_byte_len)
4964 *(((uint32_t *)mb) + pmbox->mbox_offset_word)
4965 = MAILBOX_HBA_EXT_OFFSET;
4966
4967 /* Copy the mailbox extension data */
4968 if (pmbox->in_ext_byte_len && pmbox->context2) {
4969 lpfc_memcpy_to_slim(phba->MBslimaddr +
4970 MAILBOX_HBA_EXT_OFFSET,
4971 pmbox->context2, pmbox->in_ext_byte_len);
4972
4973 }
James Smart92908312006-03-07 15:04:13 -05004974 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05004975 /* copy command data into host mbox for cmpl */
James Smart34b02dc2008-08-24 21:49:55 -04004976 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004977 }
4978
4979 /* First copy mbox command data to HBA SLIM, skip past first
4980 word */
4981 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4982 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4983 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4984
4985 /* Next copy over first word, with mbxOwner set */
James Smart34b02dc2008-08-24 21:49:55 -04004986 ldata = *((uint32_t *)mb);
dea31012005-04-17 16:05:31 -05004987 to_slim = phba->MBslimaddr;
4988 writel(ldata, to_slim);
4989 readl(to_slim); /* flush */
4990
4991 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4992 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04004993 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05004994 }
4995 }
4996
4997 wmb();
dea31012005-04-17 16:05:31 -05004998
4999 switch (flag) {
5000 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05005001 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05005002 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05005003 /* Interrupt board to do it */
5004 writel(CA_MBATT, phba->CAregaddr);
5005 readl(phba->CAregaddr); /* flush */
5006 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05005007 break;
5008
5009 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05005010 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05005011 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05005012 /* Interrupt board to do it */
5013 writel(CA_MBATT, phba->CAregaddr);
5014 readl(phba->CAregaddr); /* flush */
5015
James Smart3772a992009-05-22 14:50:54 -04005016 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005017 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04005018 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05005019 word0 = le32_to_cpu(word0);
5020 } else {
5021 /* First read mbox status word */
5022 word0 = readl(phba->MBslimaddr);
5023 }
5024
5025 /* Read the HBA Host Attention Register */
5026 ha_copy = readl(phba->HAregaddr);
James Smart09372822008-01-11 01:52:54 -05005027 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
5028 mb->mbxCommand) *
5029 1000) + jiffies;
5030 i = 0;
dea31012005-04-17 16:05:31 -05005031 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05005032 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
5033 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05005034 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05005035 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05005036 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05005037 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05005038 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04005039 goto out_not_finished;
dea31012005-04-17 16:05:31 -05005040 }
5041
5042 /* Check if we took a mbox interrupt while we were
5043 polling */
5044 if (((word0 & OWN_CHIP) != OWN_CHIP)
5045 && (evtctr != psli->slistat.mbox_event))
5046 break;
5047
James Smart09372822008-01-11 01:52:54 -05005048 if (i++ > 10) {
5049 spin_unlock_irqrestore(&phba->hbalock,
5050 drvr_flag);
5051 msleep(1);
5052 spin_lock_irqsave(&phba->hbalock, drvr_flag);
5053 }
dea31012005-04-17 16:05:31 -05005054
James Smart3772a992009-05-22 14:50:54 -04005055 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005056 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04005057 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05005058 word0 = le32_to_cpu(word0);
5059 if (mb->mbxCommand == MBX_CONFIG_PORT) {
5060 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04005061 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05005062 /* Check real SLIM for any errors */
5063 slimword0 = readl(phba->MBslimaddr);
5064 slimmb = (MAILBOX_t *) & slimword0;
5065 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
5066 && slimmb->mbxStatus) {
5067 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04005068 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05005069 word0 = slimword0;
5070 }
5071 }
5072 } else {
5073 /* First copy command data */
5074 word0 = readl(phba->MBslimaddr);
5075 }
5076 /* Read the HBA Host Attention Register */
5077 ha_copy = readl(phba->HAregaddr);
5078 }
5079
James Smart3772a992009-05-22 14:50:54 -04005080 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005081 /* copy results back to user */
James Smart34b02dc2008-08-24 21:49:55 -04005082 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04005083 /* Copy the mailbox extension data */
5084 if (pmbox->out_ext_byte_len && pmbox->context2) {
5085 lpfc_sli_pcimem_bcopy(phba->mbox_ext,
5086 pmbox->context2,
5087 pmbox->out_ext_byte_len);
5088 }
dea31012005-04-17 16:05:31 -05005089 } else {
5090 /* First copy command data */
5091 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
5092 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04005093 /* Copy the mailbox extension data */
5094 if (pmbox->out_ext_byte_len && pmbox->context2) {
5095 lpfc_memcpy_from_slim(pmbox->context2,
5096 phba->MBslimaddr +
5097 MAILBOX_HBA_EXT_OFFSET,
5098 pmbox->out_ext_byte_len);
dea31012005-04-17 16:05:31 -05005099 }
5100 }
5101
5102 writel(HA_MBATT, phba->HAregaddr);
5103 readl(phba->HAregaddr); /* flush */
5104
5105 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5106 status = mb->mbxStatus;
5107 }
5108
James Smart2e0fef82007-06-17 19:56:36 -05005109 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5110 return status;
James Smart58da1ff2008-04-07 10:15:56 -04005111
5112out_not_finished:
5113 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04005114 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04005115 lpfc_mbox_cmpl_put(phba, pmbox);
5116 }
5117 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05005118}
5119
James Smarte59058c2008-08-24 21:49:00 -04005120/**
James Smartf1126682009-06-10 17:22:44 -04005121 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5122 * @phba: Pointer to HBA context object.
5123 *
5124 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5125 * the driver internal pending mailbox queue. It will then try to wait out the
5126 * possible outstanding mailbox command before return.
5127 *
5128 * Returns:
5129 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5130 * the outstanding mailbox command timed out.
5131 **/
5132static int
5133lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5134{
5135 struct lpfc_sli *psli = &phba->sli;
5136 uint8_t actcmd = MBX_HEARTBEAT;
5137 int rc = 0;
5138 unsigned long timeout;
5139
5140 /* Mark the asynchronous mailbox command posting as blocked */
5141 spin_lock_irq(&phba->hbalock);
5142 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5143 if (phba->sli.mbox_active)
5144 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5145 spin_unlock_irq(&phba->hbalock);
5146 /* Determine how long we might wait for the active mailbox
5147 * command to be gracefully completed by firmware.
5148 */
5149 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5150 jiffies;
5151 /* Wait for the outstnading mailbox command to complete */
5152 while (phba->sli.mbox_active) {
5153 /* Check active mailbox complete status every 2ms */
5154 msleep(2);
5155 if (time_after(jiffies, timeout)) {
5156 /* Timeout, marked the outstanding cmd not complete */
5157 rc = 1;
5158 break;
5159 }
5160 }
5161
5162 /* Can not cleanly block async mailbox command, fails it */
5163 if (rc) {
5164 spin_lock_irq(&phba->hbalock);
5165 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5166 spin_unlock_irq(&phba->hbalock);
5167 }
5168 return rc;
5169}
5170
5171/**
5172 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5173 * @phba: Pointer to HBA context object.
5174 *
5175 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5176 * commands from the driver internal pending mailbox queue. It makes sure
5177 * that there is no outstanding mailbox command before resuming posting
5178 * asynchronous mailbox commands. If, for any reason, there is outstanding
5179 * mailbox command, it will try to wait it out before resuming asynchronous
5180 * mailbox command posting.
5181 **/
5182static void
5183lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5184{
5185 struct lpfc_sli *psli = &phba->sli;
5186
5187 spin_lock_irq(&phba->hbalock);
5188 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5189 /* Asynchronous mailbox posting is not blocked, do nothing */
5190 spin_unlock_irq(&phba->hbalock);
5191 return;
5192 }
5193
5194 /* Outstanding synchronous mailbox command is guaranteed to be done,
5195 * successful or timeout, after timing-out the outstanding mailbox
5196 * command shall always be removed, so just unblock posting async
5197 * mailbox command and resume
5198 */
5199 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5200 spin_unlock_irq(&phba->hbalock);
5201
5202 /* wake up worker thread to post asynchronlous mailbox command */
5203 lpfc_worker_wake_up(phba);
5204}
5205
5206/**
James Smartda0436e2009-05-22 14:51:39 -04005207 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5208 * @phba: Pointer to HBA context object.
5209 * @mboxq: Pointer to mailbox object.
5210 *
5211 * The function posts a mailbox to the port. The mailbox is expected
5212 * to be comletely filled in and ready for the port to operate on it.
5213 * This routine executes a synchronous completion operation on the
5214 * mailbox by polling for its completion.
5215 *
5216 * The caller must not be holding any locks when calling this routine.
5217 *
5218 * Returns:
5219 * MBX_SUCCESS - mailbox posted successfully
5220 * Any of the MBX error values.
5221 **/
5222static int
5223lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5224{
5225 int rc = MBX_SUCCESS;
5226 unsigned long iflag;
5227 uint32_t db_ready;
5228 uint32_t mcqe_status;
5229 uint32_t mbx_cmnd;
5230 unsigned long timeout;
5231 struct lpfc_sli *psli = &phba->sli;
5232 struct lpfc_mqe *mb = &mboxq->u.mqe;
5233 struct lpfc_bmbx_create *mbox_rgn;
5234 struct dma_address *dma_address;
5235 struct lpfc_register bmbx_reg;
5236
5237 /*
5238 * Only one mailbox can be active to the bootstrap mailbox region
5239 * at a time and there is no queueing provided.
5240 */
5241 spin_lock_irqsave(&phba->hbalock, iflag);
5242 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5243 spin_unlock_irqrestore(&phba->hbalock, iflag);
5244 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5245 "(%d):2532 Mailbox command x%x (x%x) "
5246 "cannot issue Data: x%x x%x\n",
5247 mboxq->vport ? mboxq->vport->vpi : 0,
5248 mboxq->u.mb.mbxCommand,
5249 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5250 psli->sli_flag, MBX_POLL);
5251 return MBXERR_ERROR;
5252 }
5253 /* The server grabs the token and owns it until release */
5254 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5255 phba->sli.mbox_active = mboxq;
5256 spin_unlock_irqrestore(&phba->hbalock, iflag);
5257
5258 /*
5259 * Initialize the bootstrap memory region to avoid stale data areas
5260 * in the mailbox post. Then copy the caller's mailbox contents to
5261 * the bmbx mailbox region.
5262 */
5263 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5264 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5265 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5266 sizeof(struct lpfc_mqe));
5267
5268 /* Post the high mailbox dma address to the port and wait for ready. */
5269 dma_address = &phba->sli4_hba.bmbx.dma_address;
5270 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5271
5272 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5273 * 1000) + jiffies;
5274 do {
5275 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5276 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5277 if (!db_ready)
5278 msleep(2);
5279
5280 if (time_after(jiffies, timeout)) {
5281 rc = MBXERR_ERROR;
5282 goto exit;
5283 }
5284 } while (!db_ready);
5285
5286 /* Post the low mailbox dma address to the port. */
5287 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5288 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5289 * 1000) + jiffies;
5290 do {
5291 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5292 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5293 if (!db_ready)
5294 msleep(2);
5295
5296 if (time_after(jiffies, timeout)) {
5297 rc = MBXERR_ERROR;
5298 goto exit;
5299 }
5300 } while (!db_ready);
5301
5302 /*
5303 * Read the CQ to ensure the mailbox has completed.
5304 * If so, update the mailbox status so that the upper layers
5305 * can complete the request normally.
5306 */
5307 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5308 sizeof(struct lpfc_mqe));
5309 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5310 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5311 sizeof(struct lpfc_mcqe));
5312 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5313
5314 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5315 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5316 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5317 rc = MBXERR_ERROR;
James Smartd7c47992010-06-08 18:31:54 -04005318 } else
5319 lpfc_sli4_swap_str(phba, mboxq);
James Smartda0436e2009-05-22 14:51:39 -04005320
5321 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5322 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5323 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5324 " x%x x%x CQ: x%x x%x x%x x%x\n",
5325 mboxq->vport ? mboxq->vport->vpi : 0,
5326 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5327 bf_get(lpfc_mqe_status, mb),
5328 mb->un.mb_words[0], mb->un.mb_words[1],
5329 mb->un.mb_words[2], mb->un.mb_words[3],
5330 mb->un.mb_words[4], mb->un.mb_words[5],
5331 mb->un.mb_words[6], mb->un.mb_words[7],
5332 mb->un.mb_words[8], mb->un.mb_words[9],
5333 mb->un.mb_words[10], mb->un.mb_words[11],
5334 mb->un.mb_words[12], mboxq->mcqe.word0,
5335 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5336 mboxq->mcqe.trailer);
5337exit:
5338 /* We are holding the token, no needed for lock when release */
5339 spin_lock_irqsave(&phba->hbalock, iflag);
5340 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5341 phba->sli.mbox_active = NULL;
5342 spin_unlock_irqrestore(&phba->hbalock, iflag);
5343 return rc;
5344}
5345
5346/**
5347 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5348 * @phba: Pointer to HBA context object.
5349 * @pmbox: Pointer to mailbox object.
5350 * @flag: Flag indicating how the mailbox need to be processed.
5351 *
5352 * This function is called by discovery code and HBA management code to submit
5353 * a mailbox command to firmware with SLI-4 interface spec.
5354 *
5355 * Return codes the caller owns the mailbox command after the return of the
5356 * function.
5357 **/
5358static int
5359lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5360 uint32_t flag)
5361{
5362 struct lpfc_sli *psli = &phba->sli;
5363 unsigned long iflags;
5364 int rc;
5365
James Smart8fa38512009-07-19 10:01:03 -04005366 rc = lpfc_mbox_dev_check(phba);
5367 if (unlikely(rc)) {
5368 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5369 "(%d):2544 Mailbox command x%x (x%x) "
5370 "cannot issue Data: x%x x%x\n",
5371 mboxq->vport ? mboxq->vport->vpi : 0,
5372 mboxq->u.mb.mbxCommand,
5373 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5374 psli->sli_flag, flag);
5375 goto out_not_finished;
5376 }
5377
James Smartda0436e2009-05-22 14:51:39 -04005378 /* Detect polling mode and jump to a handler */
5379 if (!phba->sli4_hba.intr_enable) {
5380 if (flag == MBX_POLL)
5381 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5382 else
5383 rc = -EIO;
5384 if (rc != MBX_SUCCESS)
5385 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5386 "(%d):2541 Mailbox command x%x "
5387 "(x%x) cannot issue Data: x%x x%x\n",
5388 mboxq->vport ? mboxq->vport->vpi : 0,
5389 mboxq->u.mb.mbxCommand,
5390 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5391 psli->sli_flag, flag);
5392 return rc;
5393 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04005394 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5395 "(%d):2542 Try to issue mailbox command "
5396 "x%x (x%x) synchronously ahead of async"
5397 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04005398 mboxq->vport ? mboxq->vport->vpi : 0,
5399 mboxq->u.mb.mbxCommand,
5400 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5401 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04005402 /* Try to block the asynchronous mailbox posting */
5403 rc = lpfc_sli4_async_mbox_block(phba);
5404 if (!rc) {
5405 /* Successfully blocked, now issue sync mbox cmd */
5406 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5407 if (rc != MBX_SUCCESS)
5408 lpfc_printf_log(phba, KERN_ERR,
5409 LOG_MBOX | LOG_SLI,
5410 "(%d):2597 Mailbox command "
5411 "x%x (x%x) cannot issue "
5412 "Data: x%x x%x\n",
5413 mboxq->vport ?
5414 mboxq->vport->vpi : 0,
5415 mboxq->u.mb.mbxCommand,
5416 lpfc_sli4_mbox_opcode_get(phba,
5417 mboxq),
5418 psli->sli_flag, flag);
5419 /* Unblock the async mailbox posting afterward */
5420 lpfc_sli4_async_mbox_unblock(phba);
5421 }
5422 return rc;
James Smartda0436e2009-05-22 14:51:39 -04005423 }
5424
5425 /* Now, interrupt mode asynchrous mailbox command */
5426 rc = lpfc_mbox_cmd_check(phba, mboxq);
5427 if (rc) {
5428 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5429 "(%d):2543 Mailbox command x%x (x%x) "
5430 "cannot issue Data: x%x x%x\n",
5431 mboxq->vport ? mboxq->vport->vpi : 0,
5432 mboxq->u.mb.mbxCommand,
5433 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5434 psli->sli_flag, flag);
5435 goto out_not_finished;
5436 }
James Smartda0436e2009-05-22 14:51:39 -04005437
5438 /* Put the mailbox command to the driver internal FIFO */
5439 psli->slistat.mbox_busy++;
5440 spin_lock_irqsave(&phba->hbalock, iflags);
5441 lpfc_mbox_put(phba, mboxq);
5442 spin_unlock_irqrestore(&phba->hbalock, iflags);
5443 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5444 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5445 "x%x (x%x) x%x x%x x%x\n",
5446 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5447 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5448 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5449 phba->pport->port_state,
5450 psli->sli_flag, MBX_NOWAIT);
5451 /* Wake up worker thread to transport mailbox command from head */
5452 lpfc_worker_wake_up(phba);
5453
5454 return MBX_BUSY;
5455
5456out_not_finished:
5457 return MBX_NOT_FINISHED;
5458}
5459
5460/**
5461 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5462 * @phba: Pointer to HBA context object.
5463 *
5464 * This function is called by worker thread to send a mailbox command to
5465 * SLI4 HBA firmware.
5466 *
5467 **/
5468int
5469lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5470{
5471 struct lpfc_sli *psli = &phba->sli;
5472 LPFC_MBOXQ_t *mboxq;
5473 int rc = MBX_SUCCESS;
5474 unsigned long iflags;
5475 struct lpfc_mqe *mqe;
5476 uint32_t mbx_cmnd;
5477
5478 /* Check interrupt mode before post async mailbox command */
5479 if (unlikely(!phba->sli4_hba.intr_enable))
5480 return MBX_NOT_FINISHED;
5481
5482 /* Check for mailbox command service token */
5483 spin_lock_irqsave(&phba->hbalock, iflags);
5484 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5485 spin_unlock_irqrestore(&phba->hbalock, iflags);
5486 return MBX_NOT_FINISHED;
5487 }
5488 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5489 spin_unlock_irqrestore(&phba->hbalock, iflags);
5490 return MBX_NOT_FINISHED;
5491 }
5492 if (unlikely(phba->sli.mbox_active)) {
5493 spin_unlock_irqrestore(&phba->hbalock, iflags);
5494 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5495 "0384 There is pending active mailbox cmd\n");
5496 return MBX_NOT_FINISHED;
5497 }
5498 /* Take the mailbox command service token */
5499 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5500
5501 /* Get the next mailbox command from head of queue */
5502 mboxq = lpfc_mbox_get(phba);
5503
5504 /* If no more mailbox command waiting for post, we're done */
5505 if (!mboxq) {
5506 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5507 spin_unlock_irqrestore(&phba->hbalock, iflags);
5508 return MBX_SUCCESS;
5509 }
5510 phba->sli.mbox_active = mboxq;
5511 spin_unlock_irqrestore(&phba->hbalock, iflags);
5512
5513 /* Check device readiness for posting mailbox command */
5514 rc = lpfc_mbox_dev_check(phba);
5515 if (unlikely(rc))
5516 /* Driver clean routine will clean up pending mailbox */
5517 goto out_not_finished;
5518
5519 /* Prepare the mbox command to be posted */
5520 mqe = &mboxq->u.mqe;
5521 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5522
5523 /* Start timer for the mbox_tmo and log some mailbox post messages */
5524 mod_timer(&psli->mbox_tmo, (jiffies +
5525 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5526
5527 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5528 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5529 "x%x x%x\n",
5530 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5531 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5532 phba->pport->port_state, psli->sli_flag);
5533
5534 if (mbx_cmnd != MBX_HEARTBEAT) {
5535 if (mboxq->vport) {
5536 lpfc_debugfs_disc_trc(mboxq->vport,
5537 LPFC_DISC_TRC_MBOX_VPORT,
5538 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5539 mbx_cmnd, mqe->un.mb_words[0],
5540 mqe->un.mb_words[1]);
5541 } else {
5542 lpfc_debugfs_disc_trc(phba->pport,
5543 LPFC_DISC_TRC_MBOX,
5544 "MBOX Send: cmd:x%x mb:x%x x%x",
5545 mbx_cmnd, mqe->un.mb_words[0],
5546 mqe->un.mb_words[1]);
5547 }
5548 }
5549 psli->slistat.mbox_cmd++;
5550
5551 /* Post the mailbox command to the port */
5552 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5553 if (rc != MBX_SUCCESS) {
5554 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5555 "(%d):2533 Mailbox command x%x (x%x) "
5556 "cannot issue Data: x%x x%x\n",
5557 mboxq->vport ? mboxq->vport->vpi : 0,
5558 mboxq->u.mb.mbxCommand,
5559 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5560 psli->sli_flag, MBX_NOWAIT);
5561 goto out_not_finished;
5562 }
5563
5564 return rc;
5565
5566out_not_finished:
5567 spin_lock_irqsave(&phba->hbalock, iflags);
5568 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5569 __lpfc_mbox_cmpl_put(phba, mboxq);
5570 /* Release the token */
5571 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5572 phba->sli.mbox_active = NULL;
5573 spin_unlock_irqrestore(&phba->hbalock, iflags);
5574
5575 return MBX_NOT_FINISHED;
5576}
5577
5578/**
5579 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5580 * @phba: Pointer to HBA context object.
5581 * @pmbox: Pointer to mailbox object.
5582 * @flag: Flag indicating how the mailbox need to be processed.
5583 *
5584 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5585 * the API jump table function pointer from the lpfc_hba struct.
5586 *
5587 * Return codes the caller owns the mailbox command after the return of the
5588 * function.
5589 **/
5590int
5591lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5592{
5593 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5594}
5595
5596/**
5597 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5598 * @phba: The hba struct for which this call is being executed.
5599 * @dev_grp: The HBA PCI-Device group number.
5600 *
5601 * This routine sets up the mbox interface API function jump table in @phba
5602 * struct.
5603 * Returns: 0 - success, -ENODEV - failure.
5604 **/
5605int
5606lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5607{
5608
5609 switch (dev_grp) {
5610 case LPFC_PCI_DEV_LP:
5611 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5612 phba->lpfc_sli_handle_slow_ring_event =
5613 lpfc_sli_handle_slow_ring_event_s3;
5614 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5615 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5616 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5617 break;
5618 case LPFC_PCI_DEV_OC:
5619 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5620 phba->lpfc_sli_handle_slow_ring_event =
5621 lpfc_sli_handle_slow_ring_event_s4;
5622 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5623 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5624 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5625 break;
5626 default:
5627 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5628 "1420 Invalid HBA PCI-device group: 0x%x\n",
5629 dev_grp);
5630 return -ENODEV;
5631 break;
5632 }
5633 return 0;
5634}
5635
5636/**
James Smart3621a712009-04-06 18:47:14 -04005637 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04005638 * @phba: Pointer to HBA context object.
5639 * @pring: Pointer to driver SLI ring object.
5640 * @piocb: Pointer to address of newly added command iocb.
5641 *
5642 * This function is called with hbalock held to add a command
5643 * iocb to the txq when SLI layer cannot submit the command iocb
5644 * to the ring.
5645 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04005646void
James Smart92d7f7b2007-06-17 19:56:38 -05005647__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005648 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05005649{
5650 /* Insert the caller's iocb in the txq tail for later processing. */
5651 list_add_tail(&piocb->list, &pring->txq);
5652 pring->txq_cnt++;
dea31012005-04-17 16:05:31 -05005653}
5654
James Smarte59058c2008-08-24 21:49:00 -04005655/**
James Smart3621a712009-04-06 18:47:14 -04005656 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04005657 * @phba: Pointer to HBA context object.
5658 * @pring: Pointer to driver SLI ring object.
5659 * @piocb: Pointer to address of newly added command iocb.
5660 *
5661 * This function is called with hbalock held before a new
5662 * iocb is submitted to the firmware. This function checks
5663 * txq to flush the iocbs in txq to Firmware before
5664 * submitting new iocbs to the Firmware.
5665 * If there are iocbs in the txq which need to be submitted
5666 * to firmware, lpfc_sli_next_iocb returns the first element
5667 * of the txq after dequeuing it from txq.
5668 * If there is no iocb in the txq then the function will return
5669 * *piocb and *piocb is set to NULL. Caller needs to check
5670 * *piocb to find if there are more commands in the txq.
5671 **/
dea31012005-04-17 16:05:31 -05005672static struct lpfc_iocbq *
5673lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005674 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05005675{
5676 struct lpfc_iocbq * nextiocb;
5677
5678 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5679 if (!nextiocb) {
5680 nextiocb = *piocb;
5681 *piocb = NULL;
5682 }
5683
5684 return nextiocb;
5685}
5686
James Smarte59058c2008-08-24 21:49:00 -04005687/**
James Smart3772a992009-05-22 14:50:54 -04005688 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04005689 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04005690 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04005691 * @piocb: Pointer to command iocb.
5692 * @flag: Flag indicating if this command can be put into txq.
5693 *
James Smart3772a992009-05-22 14:50:54 -04005694 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5695 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5696 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5697 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5698 * this function allows only iocbs for posting buffers. This function finds
5699 * next available slot in the command ring and posts the command to the
5700 * available slot and writes the port attention register to request HBA start
5701 * processing new iocb. If there is no slot available in the ring and
5702 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5703 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04005704 *
James Smart3772a992009-05-22 14:50:54 -04005705 * This function is called with hbalock held. The function will return success
5706 * after it successfully submit the iocb to firmware or after adding to the
5707 * txq.
James Smarte59058c2008-08-24 21:49:00 -04005708 **/
James Smart98c9ea52007-10-27 13:37:33 -04005709static int
James Smart3772a992009-05-22 14:50:54 -04005710__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05005711 struct lpfc_iocbq *piocb, uint32_t flag)
5712{
5713 struct lpfc_iocbq *nextiocb;
5714 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04005715 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05005716
James Smart92d7f7b2007-06-17 19:56:38 -05005717 if (piocb->iocb_cmpl && (!piocb->vport) &&
5718 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5719 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5720 lpfc_printf_log(phba, KERN_ERR,
5721 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04005722 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05005723 piocb->iocb.ulpCommand);
5724 dump_stack();
5725 return IOCB_ERROR;
5726 }
5727
5728
Linas Vepstas8d63f372007-02-14 14:28:36 -06005729 /* If the PCI channel is in offline state, do not post iocbs. */
5730 if (unlikely(pci_channel_offline(phba->pcidev)))
5731 return IOCB_ERROR;
5732
James Smarta257bf92009-04-06 18:48:10 -04005733 /* If HBA has a deferred error attention, fail the iocb. */
5734 if (unlikely(phba->hba_flag & DEFER_ERATT))
5735 return IOCB_ERROR;
5736
dea31012005-04-17 16:05:31 -05005737 /*
5738 * We should never get an IOCB if we are in a < LINK_DOWN state
5739 */
James Smart2e0fef82007-06-17 19:56:36 -05005740 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05005741 return IOCB_ERROR;
5742
5743 /*
5744 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04005745 * outstanding event.
dea31012005-04-17 16:05:31 -05005746 */
James Smart0b727fe2007-10-27 13:37:25 -04005747 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05005748 goto iocb_busy;
5749
James Smart2e0fef82007-06-17 19:56:36 -05005750 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05005751 /*
James Smart2680eea2007-04-25 09:52:55 -04005752 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05005753 * can be issued if the link is not up.
5754 */
5755 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04005756 case CMD_GEN_REQUEST64_CR:
5757 case CMD_GEN_REQUEST64_CX:
5758 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5759 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
James Smart6a9c52c2009-10-02 15:16:51 -04005760 FC_RCTL_DD_UNSOL_CMD) ||
James Smart84774a42008-08-24 21:50:06 -04005761 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5762 MENLO_TRANSPORT_TYPE))
5763
5764 goto iocb_busy;
5765 break;
dea31012005-04-17 16:05:31 -05005766 case CMD_QUE_RING_BUF_CN:
5767 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05005768 /*
5769 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5770 * completion, iocb_cmpl MUST be 0.
5771 */
5772 if (piocb->iocb_cmpl)
5773 piocb->iocb_cmpl = NULL;
5774 /*FALLTHROUGH*/
5775 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04005776 case CMD_CLOSE_XRI_CN:
5777 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05005778 break;
5779 default:
5780 goto iocb_busy;
5781 }
5782
5783 /*
5784 * For FCP commands, we must be in a state where we can process link
5785 * attention events.
5786 */
5787 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05005788 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05005789 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05005790 }
dea31012005-04-17 16:05:31 -05005791
dea31012005-04-17 16:05:31 -05005792 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5793 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5794 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5795
5796 if (iocb)
5797 lpfc_sli_update_ring(phba, pring);
5798 else
5799 lpfc_sli_update_full_ring(phba, pring);
5800
5801 if (!piocb)
5802 return IOCB_SUCCESS;
5803
5804 goto out_busy;
5805
5806 iocb_busy:
5807 pring->stats.iocb_cmd_delay++;
5808
5809 out_busy:
5810
5811 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05005812 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05005813 return IOCB_SUCCESS;
5814 }
5815
5816 return IOCB_BUSY;
5817}
5818
James Smart3772a992009-05-22 14:50:54 -04005819/**
James Smart4f774512009-05-22 14:52:35 -04005820 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5821 * @phba: Pointer to HBA context object.
5822 * @piocb: Pointer to command iocb.
5823 * @sglq: Pointer to the scatter gather queue object.
5824 *
5825 * This routine converts the bpl or bde that is in the IOCB
5826 * to a sgl list for the sli4 hardware. The physical address
5827 * of the bpl/bde is converted back to a virtual address.
5828 * If the IOCB contains a BPL then the list of BDE's is
5829 * converted to sli4_sge's. If the IOCB contains a single
5830 * BDE then it is converted to a single sli_sge.
5831 * The IOCB is still in cpu endianess so the contents of
5832 * the bpl can be used without byte swapping.
5833 *
5834 * Returns valid XRI = Success, NO_XRI = Failure.
5835**/
5836static uint16_t
5837lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5838 struct lpfc_sglq *sglq)
5839{
5840 uint16_t xritag = NO_XRI;
5841 struct ulp_bde64 *bpl = NULL;
5842 struct ulp_bde64 bde;
5843 struct sli4_sge *sgl = NULL;
5844 IOCB_t *icmd;
5845 int numBdes = 0;
5846 int i = 0;
5847
5848 if (!piocbq || !sglq)
5849 return xritag;
5850
5851 sgl = (struct sli4_sge *)sglq->sgl;
5852 icmd = &piocbq->iocb;
5853 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5854 numBdes = icmd->un.genreq64.bdl.bdeSize /
5855 sizeof(struct ulp_bde64);
5856 /* The addrHigh and addrLow fields within the IOCB
5857 * have not been byteswapped yet so there is no
5858 * need to swap them back.
5859 */
5860 bpl = (struct ulp_bde64 *)
5861 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5862
5863 if (!bpl)
5864 return xritag;
5865
5866 for (i = 0; i < numBdes; i++) {
5867 /* Should already be byte swapped. */
James Smart28baac72010-02-12 14:42:03 -05005868 sgl->addr_hi = bpl->addrHigh;
5869 sgl->addr_lo = bpl->addrLow;
5870
James Smart4f774512009-05-22 14:52:35 -04005871 if ((i+1) == numBdes)
5872 bf_set(lpfc_sli4_sge_last, sgl, 1);
5873 else
5874 bf_set(lpfc_sli4_sge_last, sgl, 0);
5875 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05005876 /* swap the size field back to the cpu so we
5877 * can assign it to the sgl.
5878 */
5879 bde.tus.w = le32_to_cpu(bpl->tus.w);
5880 sgl->sge_len = cpu_to_le32(bde.tus.f.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04005881 bpl++;
5882 sgl++;
5883 }
5884 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5885 /* The addrHigh and addrLow fields of the BDE have not
5886 * been byteswapped yet so they need to be swapped
5887 * before putting them in the sgl.
5888 */
5889 sgl->addr_hi =
5890 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5891 sgl->addr_lo =
5892 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
James Smart4f774512009-05-22 14:52:35 -04005893 bf_set(lpfc_sli4_sge_last, sgl, 1);
5894 sgl->word2 = cpu_to_le32(sgl->word2);
James Smart28baac72010-02-12 14:42:03 -05005895 sgl->sge_len =
5896 cpu_to_le32(icmd->un.genreq64.bdl.bdeSize);
James Smart4f774512009-05-22 14:52:35 -04005897 }
5898 return sglq->sli4_xritag;
5899}
5900
5901/**
5902 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5903 * @phba: Pointer to HBA context object.
James Smart4f774512009-05-22 14:52:35 -04005904 *
5905 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
James Smart8fa38512009-07-19 10:01:03 -04005906 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5907 * held.
James Smart4f774512009-05-22 14:52:35 -04005908 *
5909 * Return: index into SLI4 fast-path FCP queue index.
5910 **/
5911static uint32_t
James Smart8fa38512009-07-19 10:01:03 -04005912lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -04005913{
James Smart8fa38512009-07-19 10:01:03 -04005914 ++phba->fcp_qidx;
5915 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5916 phba->fcp_qidx = 0;
James Smart4f774512009-05-22 14:52:35 -04005917
James Smart8fa38512009-07-19 10:01:03 -04005918 return phba->fcp_qidx;
James Smart4f774512009-05-22 14:52:35 -04005919}
5920
5921/**
5922 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5923 * @phba: Pointer to HBA context object.
5924 * @piocb: Pointer to command iocb.
5925 * @wqe: Pointer to the work queue entry.
5926 *
5927 * This routine converts the iocb command to its Work Queue Entry
5928 * equivalent. The wqe pointer should not have any fields set when
5929 * this routine is called because it will memcpy over them.
5930 * This routine does not set the CQ_ID or the WQEC bits in the
5931 * wqe.
5932 *
5933 * Returns: 0 = Success, IOCB_ERROR = Failure.
5934 **/
5935static int
5936lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5937 union lpfc_wqe *wqe)
5938{
James Smart5ffc2662009-11-18 15:39:44 -05005939 uint32_t xmit_len = 0, total_len = 0;
James Smart4f774512009-05-22 14:52:35 -04005940 uint8_t ct = 0;
5941 uint32_t fip;
5942 uint32_t abort_tag;
5943 uint8_t command_type = ELS_COMMAND_NON_FIP;
5944 uint8_t cmnd;
5945 uint16_t xritag;
5946 struct ulp_bde64 *bpl = NULL;
James Smartc8685952009-11-18 15:39:16 -05005947 uint32_t els_id = ELS_ID_DEFAULT;
James Smart5ffc2662009-11-18 15:39:44 -05005948 int numBdes, i;
5949 struct ulp_bde64 bde;
James Smart4f774512009-05-22 14:52:35 -04005950
James Smart45ed1192009-10-02 15:17:02 -04005951 fip = phba->hba_flag & HBA_FIP_SUPPORT;
James Smart4f774512009-05-22 14:52:35 -04005952 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04005953 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04005954 command_type = FCP_COMMAND;
James Smartc8685952009-11-18 15:39:16 -05005955 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK))
James Smart0c287582009-06-10 17:22:56 -04005956 command_type = ELS_COMMAND_FIP;
5957 else
5958 command_type = ELS_COMMAND_NON_FIP;
5959
James Smart4f774512009-05-22 14:52:35 -04005960 /* Some of the fields are in the right position already */
5961 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5962 abort_tag = (uint32_t) iocbq->iotag;
5963 xritag = iocbq->sli4_xritag;
5964 wqe->words[7] = 0; /* The ct field has moved so reset */
5965 /* words0-2 bpl convert bde */
5966 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
James Smart5ffc2662009-11-18 15:39:44 -05005967 numBdes = iocbq->iocb.un.genreq64.bdl.bdeSize /
5968 sizeof(struct ulp_bde64);
James Smart4f774512009-05-22 14:52:35 -04005969 bpl = (struct ulp_bde64 *)
5970 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5971 if (!bpl)
5972 return IOCB_ERROR;
5973
5974 /* Should already be byte swapped. */
5975 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5976 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5977 /* swap the size field back to the cpu so we
5978 * can assign it to the sgl.
5979 */
5980 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
James Smart5ffc2662009-11-18 15:39:44 -05005981 xmit_len = wqe->generic.bde.tus.f.bdeSize;
5982 total_len = 0;
5983 for (i = 0; i < numBdes; i++) {
5984 bde.tus.w = le32_to_cpu(bpl[i].tus.w);
5985 total_len += bde.tus.f.bdeSize;
5986 }
James Smart4f774512009-05-22 14:52:35 -04005987 } else
James Smart5ffc2662009-11-18 15:39:44 -05005988 xmit_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
James Smart4f774512009-05-22 14:52:35 -04005989
5990 iocbq->iocb.ulpIoTag = iocbq->iotag;
5991 cmnd = iocbq->iocb.ulpCommand;
5992
5993 switch (iocbq->iocb.ulpCommand) {
5994 case CMD_ELS_REQUEST64_CR:
5995 if (!iocbq->iocb.ulpLe) {
5996 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5997 "2007 Only Limited Edition cmd Format"
5998 " supported 0x%x\n",
5999 iocbq->iocb.ulpCommand);
6000 return IOCB_ERROR;
6001 }
James Smart5ffc2662009-11-18 15:39:44 -05006002 wqe->els_req.payload_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04006003 /* Els_reguest64 has a TMO */
6004 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
6005 iocbq->iocb.ulpTimeout);
6006 /* Need a VF for word 4 set the vf bit*/
6007 bf_set(els_req64_vf, &wqe->els_req, 0);
6008 /* And a VFID for word 12 */
6009 bf_set(els_req64_vfid, &wqe->els_req, 0);
6010 /*
6011 * Set ct field to 3, indicates that the context_tag field
6012 * contains the FCFI and remote N_Port_ID is
6013 * in word 5.
6014 */
6015
6016 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6017 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6018 iocbq->iocb.ulpContext);
6019
James Smart4f774512009-05-22 14:52:35 -04006020 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
6021 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
6022 /* CCP CCPE PV PRI in word10 were set in the memcpy */
James Smartc8685952009-11-18 15:39:16 -05006023
6024 if (command_type == ELS_COMMAND_FIP) {
6025 els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
6026 >> LPFC_FIP_ELS_ID_SHIFT);
6027 }
6028 bf_set(lpfc_wqe_gen_els_id, &wqe->generic, els_id);
6029
James Smart4f774512009-05-22 14:52:35 -04006030 break;
James Smart5ffc2662009-11-18 15:39:44 -05006031 case CMD_XMIT_SEQUENCE64_CX:
6032 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6033 iocbq->iocb.un.ulpWord[3]);
6034 wqe->generic.word3 = 0;
6035 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
James Smart5ffc2662009-11-18 15:39:44 -05006036 /* The entire sequence is transmitted for this IOCB */
6037 xmit_len = total_len;
6038 cmnd = CMD_XMIT_SEQUENCE64_CR;
James Smart4f774512009-05-22 14:52:35 -04006039 case CMD_XMIT_SEQUENCE64_CR:
6040 /* word3 iocb=io_tag32 wqe=payload_offset */
6041 /* payload offset used for multilpe outstanding
6042 * sequences on the same exchange
6043 */
6044 wqe->words[3] = 0;
6045 /* word4 relative_offset memcpy */
6046 /* word5 r_ctl/df_ctl memcpy */
6047 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
James Smart5ffc2662009-11-18 15:39:44 -05006048 wqe->xmit_sequence.xmit_len = xmit_len;
6049 command_type = OTHER_COMMAND;
James Smart4f774512009-05-22 14:52:35 -04006050 break;
6051 case CMD_XMIT_BCAST64_CN:
6052 /* word3 iocb=iotag32 wqe=payload_len */
6053 wqe->words[3] = 0; /* no definition for this in wqe */
6054 /* word4 iocb=rsvd wqe=rsvd */
6055 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6056 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6057 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6058 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6059 break;
6060 case CMD_FCP_IWRITE64_CR:
6061 command_type = FCP_COMMAND_DATA_OUT;
6062 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
6063 * confusing.
6064 * word3 is payload_len: byte offset to the sgl entry for the
6065 * fcp_command.
6066 * word4 is total xfer len, same as the IOCB->ulpParameter.
6067 * word5 is initial xfer len 0 = wait for xfer-ready
6068 */
6069
6070 /* Always wait for xfer-ready before sending data */
6071 wqe->fcp_iwrite.initial_xfer_len = 0;
6072 /* word 4 (xfer length) should have been set on the memcpy */
6073
6074 /* allow write to fall through to read */
6075 case CMD_FCP_IREAD64_CR:
6076 /* FCP_CMD is always the 1st sgl entry */
6077 wqe->fcp_iread.payload_len =
James Smart5ffc2662009-11-18 15:39:44 -05006078 xmit_len + sizeof(struct fcp_rsp);
James Smart4f774512009-05-22 14:52:35 -04006079
6080 /* word 4 (xfer length) should have been set on the memcpy */
6081
6082 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
6083 iocbq->iocb.ulpFCP2Rcvy);
6084 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
6085 /* The XC bit and the XS bit are similar. The driver never
6086 * tracked whether or not the exchange was previouslly open.
6087 * XC = Exchange create, 0 is create. 1 is already open.
6088 * XS = link cmd: 1 do not close the exchange after command.
6089 * XS = 0 close exchange when command completes.
6090 * The only time we would not set the XC bit is when the XS bit
6091 * is set and we are sending our 2nd or greater command on
6092 * this exchange.
6093 */
James Smart4f774512009-05-22 14:52:35 -04006094 /* Always open the exchange */
6095 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
6096
6097 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
6098 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
James Smartf1126682009-06-10 17:22:44 -04006099 break;
6100 case CMD_FCP_ICMND64_CR:
6101 /* Always open the exchange */
6102 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
6103
6104 wqe->words[4] = 0;
6105 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
6106 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
James Smart4f774512009-05-22 14:52:35 -04006107 break;
6108 case CMD_GEN_REQUEST64_CR:
6109 /* word3 command length is described as byte offset to the
6110 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6111 * sgl[0] = cmnd
6112 * sgl[1] = rsp.
6113 *
6114 */
James Smart5ffc2662009-11-18 15:39:44 -05006115 wqe->gen_req.command_len = xmit_len;
James Smart4f774512009-05-22 14:52:35 -04006116 /* Word4 parameter copied in the memcpy */
6117 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6118 /* word6 context tag copied in memcpy */
6119 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
6120 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6121 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6122 "2015 Invalid CT %x command 0x%x\n",
6123 ct, iocbq->iocb.ulpCommand);
6124 return IOCB_ERROR;
6125 }
6126 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6127 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6128 iocbq->iocb.ulpTimeout);
6129
6130 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6131 command_type = OTHER_COMMAND;
6132 break;
6133 case CMD_XMIT_ELS_RSP64_CX:
6134 /* words0-2 BDE memcpy */
6135 /* word3 iocb=iotag32 wqe=rsvd */
6136 wqe->words[3] = 0;
6137 /* word4 iocb=did wge=rsvd. */
6138 wqe->words[4] = 0;
6139 /* word5 iocb=rsvd wge=did */
6140 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6141 iocbq->iocb.un.elsreq64.remoteID);
6142
6143 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6144 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6145
6146 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6147 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6148 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6149 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6150 iocbq->vport->vpi + phba->vpi_base);
6151 command_type = OTHER_COMMAND;
6152 break;
6153 case CMD_CLOSE_XRI_CN:
6154 case CMD_ABORT_XRI_CN:
6155 case CMD_ABORT_XRI_CX:
6156 /* words 0-2 memcpy should be 0 rserved */
6157 /* port will send abts */
6158 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6159 /*
6160 * The link is down so the fw does not need to send abts
6161 * on the wire.
6162 */
6163 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6164 else
6165 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6166 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
James Smart4f774512009-05-22 14:52:35 -04006167 wqe->words[5] = 0;
6168 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6169 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6170 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
James Smart4f774512009-05-22 14:52:35 -04006171 /*
6172 * The abort handler will send us CMD_ABORT_XRI_CN or
6173 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6174 */
6175 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6176 cmnd = CMD_ABORT_XRI_CX;
6177 command_type = OTHER_COMMAND;
6178 xritag = 0;
6179 break;
James Smart6669f9b2009-10-02 15:16:45 -04006180 case CMD_XMIT_BLS_RSP64_CX:
6181 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6182 * we re-construct this WQE here based on information in
6183 * iocbq from scratch.
6184 */
6185 memset(wqe, 0, sizeof(union lpfc_wqe));
James Smart5ffc2662009-11-18 15:39:44 -05006186 /* OX_ID is invariable to who sent ABTS to CT exchange */
James Smart6669f9b2009-10-02 15:16:45 -04006187 bf_set(xmit_bls_rsp64_oxid, &wqe->xmit_bls_rsp,
James Smart5ffc2662009-11-18 15:39:44 -05006188 bf_get(lpfc_abts_oxid, &iocbq->iocb.un.bls_acc));
6189 if (bf_get(lpfc_abts_orig, &iocbq->iocb.un.bls_acc) ==
6190 LPFC_ABTS_UNSOL_INT) {
6191 /* ABTS sent by initiator to CT exchange, the
6192 * RX_ID field will be filled with the newly
6193 * allocated responder XRI.
6194 */
6195 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6196 iocbq->sli4_xritag);
6197 } else {
6198 /* ABTS sent by responder to CT exchange, the
6199 * RX_ID field will be filled with the responder
6200 * RX_ID from ABTS.
6201 */
6202 bf_set(xmit_bls_rsp64_rxid, &wqe->xmit_bls_rsp,
6203 bf_get(lpfc_abts_rxid, &iocbq->iocb.un.bls_acc));
6204 }
James Smart6669f9b2009-10-02 15:16:45 -04006205 bf_set(xmit_bls_rsp64_seqcnthi, &wqe->xmit_bls_rsp, 0xffff);
6206 bf_set(wqe_xmit_bls_pt, &wqe->xmit_bls_rsp.wqe_dest, 0x1);
6207 bf_set(wqe_ctxt_tag, &wqe->xmit_bls_rsp.wqe_com,
6208 iocbq->iocb.ulpContext);
6209 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6210 command_type = OTHER_COMMAND;
6211 break;
James Smart4f774512009-05-22 14:52:35 -04006212 case CMD_XRI_ABORTED_CX:
6213 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6214 /* words0-2 are all 0's no bde */
6215 /* word3 and word4 are rsvrd */
6216 wqe->words[3] = 0;
6217 wqe->words[4] = 0;
6218 /* word5 iocb=rsvd wge=did */
6219 /* There is no remote port id in the IOCB? */
6220 /* Let this fall through and fail */
6221 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6222 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6223 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6224 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6225 default:
6226 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6227 "2014 Invalid command 0x%x\n",
6228 iocbq->iocb.ulpCommand);
6229 return IOCB_ERROR;
6230 break;
6231
6232 }
6233 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6234 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6235 wqe->generic.abort_tag = abort_tag;
6236 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6237 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6238 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6239 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6240
6241 return 0;
6242}
6243
6244/**
6245 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6246 * @phba: Pointer to HBA context object.
6247 * @ring_number: SLI ring number to issue iocb on.
6248 * @piocb: Pointer to command iocb.
6249 * @flag: Flag indicating if this command can be put into txq.
6250 *
6251 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6252 * an iocb command to an HBA with SLI-4 interface spec.
6253 *
6254 * This function is called with hbalock held. The function will return success
6255 * after it successfully submit the iocb to firmware or after adding to the
6256 * txq.
6257 **/
6258static int
6259__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6260 struct lpfc_iocbq *piocb, uint32_t flag)
6261{
6262 struct lpfc_sglq *sglq;
James Smart4f774512009-05-22 14:52:35 -04006263 union lpfc_wqe wqe;
6264 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
James Smart4f774512009-05-22 14:52:35 -04006265
6266 if (piocb->sli4_xritag == NO_XRI) {
6267 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
James Smart6669f9b2009-10-02 15:16:45 -04006268 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
James Smart4f774512009-05-22 14:52:35 -04006269 sglq = NULL;
6270 else {
James Smart2a9bf3d2010-06-07 15:24:45 -04006271 if (pring->txq_cnt) {
6272 if (!(flag & SLI_IOCB_RET_IOCB)) {
6273 __lpfc_sli_ringtx_put(phba,
6274 pring, piocb);
6275 return IOCB_SUCCESS;
6276 } else {
6277 return IOCB_BUSY;
6278 }
6279 } else {
James Smart4f774512009-05-22 14:52:35 -04006280 sglq = __lpfc_sli_get_sglq(phba);
James Smart2a9bf3d2010-06-07 15:24:45 -04006281 if (!sglq) {
6282 if (!(flag & SLI_IOCB_RET_IOCB)) {
6283 __lpfc_sli_ringtx_put(phba,
6284 pring,
6285 piocb);
6286 return IOCB_SUCCESS;
6287 } else
6288 return IOCB_BUSY;
6289 }
6290 }
James Smart4f774512009-05-22 14:52:35 -04006291 }
6292 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6293 sglq = NULL; /* These IO's already have an XRI and
6294 * a mapped sgl.
6295 */
6296 } else {
6297 /* This is a continuation of a commandi,(CX) so this
6298 * sglq is on the active list
6299 */
6300 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6301 if (!sglq)
6302 return IOCB_ERROR;
6303 }
6304
6305 if (sglq) {
James Smart2a9bf3d2010-06-07 15:24:45 -04006306 piocb->sli4_xritag = sglq->sli4_xritag;
6307
6308 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocb, sglq))
James Smart4f774512009-05-22 14:52:35 -04006309 return IOCB_ERROR;
6310 }
6311
6312 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6313 return IOCB_ERROR;
6314
James Smart341af102010-01-26 23:07:37 -05006315 if ((piocb->iocb_flag & LPFC_IO_FCP) ||
6316 (piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
James Smart5ffc2662009-11-18 15:39:44 -05006317 /*
6318 * For FCP command IOCB, get a new WQ index to distribute
6319 * WQE across the WQsr. On the other hand, for abort IOCB,
6320 * it carries the same WQ index to the original command
6321 * IOCB.
6322 */
James Smart341af102010-01-26 23:07:37 -05006323 if (piocb->iocb_flag & LPFC_IO_FCP)
James Smart5ffc2662009-11-18 15:39:44 -05006324 piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
6325 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
6326 &wqe))
James Smart4f774512009-05-22 14:52:35 -04006327 return IOCB_ERROR;
6328 } else {
6329 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6330 return IOCB_ERROR;
6331 }
6332 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6333
6334 return 0;
6335}
6336
6337/**
James Smart3772a992009-05-22 14:50:54 -04006338 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6339 *
6340 * This routine wraps the actual lockless version for issusing IOCB function
6341 * pointer from the lpfc_hba struct.
6342 *
6343 * Return codes:
6344 * IOCB_ERROR - Error
6345 * IOCB_SUCCESS - Success
6346 * IOCB_BUSY - Busy
6347 **/
James Smart2a9bf3d2010-06-07 15:24:45 -04006348int
James Smart3772a992009-05-22 14:50:54 -04006349__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6350 struct lpfc_iocbq *piocb, uint32_t flag)
6351{
6352 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6353}
6354
6355/**
6356 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6357 * @phba: The hba struct for which this call is being executed.
6358 * @dev_grp: The HBA PCI-Device group number.
6359 *
6360 * This routine sets up the SLI interface API function jump table in @phba
6361 * struct.
6362 * Returns: 0 - success, -ENODEV - failure.
6363 **/
6364int
6365lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6366{
6367
6368 switch (dev_grp) {
6369 case LPFC_PCI_DEV_LP:
6370 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6371 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6372 break;
James Smart4f774512009-05-22 14:52:35 -04006373 case LPFC_PCI_DEV_OC:
6374 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6375 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6376 break;
James Smart3772a992009-05-22 14:50:54 -04006377 default:
6378 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6379 "1419 Invalid HBA PCI-device group: 0x%x\n",
6380 dev_grp);
6381 return -ENODEV;
6382 break;
6383 }
6384 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6385 return 0;
6386}
James Smart92d7f7b2007-06-17 19:56:38 -05006387
James Smarte59058c2008-08-24 21:49:00 -04006388/**
James Smart3621a712009-04-06 18:47:14 -04006389 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04006390 * @phba: Pointer to HBA context object.
6391 * @pring: Pointer to driver SLI ring object.
6392 * @piocb: Pointer to command iocb.
6393 * @flag: Flag indicating if this command can be put into txq.
6394 *
6395 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6396 * function. This function gets the hbalock and calls
6397 * __lpfc_sli_issue_iocb function and will return the error returned
6398 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6399 * functions which do not hold hbalock.
6400 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006401int
James Smart3772a992009-05-22 14:50:54 -04006402lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05006403 struct lpfc_iocbq *piocb, uint32_t flag)
6404{
6405 unsigned long iflags;
6406 int rc;
6407
6408 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart3772a992009-05-22 14:50:54 -04006409 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
James Smart92d7f7b2007-06-17 19:56:38 -05006410 spin_unlock_irqrestore(&phba->hbalock, iflags);
6411
6412 return rc;
6413}
6414
James Smarte59058c2008-08-24 21:49:00 -04006415/**
James Smart3621a712009-04-06 18:47:14 -04006416 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006417 * @phba: Pointer to HBA context object.
6418 *
6419 * This function is called while driver attaches with the
6420 * HBA to setup the extra ring. The extra ring is used
6421 * only when driver needs to support target mode functionality
6422 * or IP over FC functionalities.
6423 *
6424 * This function is called with no lock held.
6425 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006426static int
6427lpfc_extra_ring_setup( struct lpfc_hba *phba)
6428{
6429 struct lpfc_sli *psli;
6430 struct lpfc_sli_ring *pring;
6431
6432 psli = &phba->sli;
6433
6434 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05006435
6436 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006437 pring = &psli->ring[psli->fcp_ring];
6438 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6439 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6440 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6441 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6442
James Smarta4bc3372006-12-02 13:34:16 -05006443 /* and give them to the extra ring */
6444 pring = &psli->ring[psli->extra_ring];
6445
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006446 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6447 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6448 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6449 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6450
6451 /* Setup default profile for this ring */
6452 pring->iotag_max = 4096;
6453 pring->num_mask = 1;
6454 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05006455 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6456 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006457 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6458 return 0;
6459}
6460
James Smarte59058c2008-08-24 21:49:00 -04006461/**
James Smart3621a712009-04-06 18:47:14 -04006462 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04006463 * @phba: Pointer to HBA context object.
6464 * @pring: Pointer to driver SLI ring object.
6465 * @iocbq: Pointer to iocb object.
6466 *
6467 * This function is called by the slow ring event handler
6468 * function when there is an ASYNC event iocb in the ring.
6469 * This function is called with no lock held.
6470 * Currently this function handles only temperature related
6471 * ASYNC events. The function decodes the temperature sensor
6472 * event message and posts events for the management applications.
6473 **/
James Smart98c9ea52007-10-27 13:37:33 -04006474static void
James Smart57127f12007-10-27 13:37:05 -04006475lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6476 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6477{
6478 IOCB_t *icmd;
6479 uint16_t evt_code;
6480 uint16_t temp;
6481 struct temp_event temp_event_data;
6482 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04006483 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04006484
6485 icmd = &iocbq->iocb;
6486 evt_code = icmd->un.asyncstat.evt_code;
6487 temp = icmd->ulpContext;
6488
6489 if ((evt_code != ASYNC_TEMP_WARN) &&
6490 (evt_code != ASYNC_TEMP_SAFE)) {
James Smarta257bf92009-04-06 18:48:10 -04006491 iocb_w = (uint32_t *) icmd;
James Smart57127f12007-10-27 13:37:05 -04006492 lpfc_printf_log(phba,
6493 KERN_ERR,
6494 LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006495 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04006496 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04006497 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6498 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6499 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6500 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smart57127f12007-10-27 13:37:05 -04006501 pring->ringno,
James Smarta257bf92009-04-06 18:48:10 -04006502 icmd->un.asyncstat.evt_code,
6503 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6504 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6505 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6506 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6507
James Smart57127f12007-10-27 13:37:05 -04006508 return;
6509 }
6510 temp_event_data.data = (uint32_t)temp;
6511 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6512 if (evt_code == ASYNC_TEMP_WARN) {
6513 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6514 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006515 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006516 LOG_TEMP,
James Smart76bb24e2007-10-27 13:38:00 -04006517 "0347 Adapter is very hot, please take "
James Smart57127f12007-10-27 13:37:05 -04006518 "corrective action. temperature : %d Celsius\n",
6519 temp);
6520 }
6521 if (evt_code == ASYNC_TEMP_SAFE) {
6522 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6523 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006524 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006525 LOG_TEMP,
6526 "0340 Adapter temperature is OK now. "
6527 "temperature : %d Celsius\n",
6528 temp);
6529 }
6530
6531 /* Send temperature change event to applications */
6532 shost = lpfc_shost_from_vport(phba->pport);
6533 fc_host_post_vendor_event(shost, fc_get_event_number(),
6534 sizeof(temp_event_data), (char *) &temp_event_data,
James Smartddcc50f2008-12-04 22:38:46 -05006535 LPFC_NL_VENDOR_ID);
James Smart57127f12007-10-27 13:37:05 -04006536
6537}
6538
6539
James Smarte59058c2008-08-24 21:49:00 -04006540/**
James Smart3621a712009-04-06 18:47:14 -04006541 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006542 * @phba: Pointer to HBA context object.
6543 *
6544 * lpfc_sli_setup sets up rings of the SLI interface with
6545 * number of iocbs per ring and iotags. This function is
6546 * called while driver attach to the HBA and before the
6547 * interrupts are enabled. So there is no need for locking.
6548 *
6549 * This function always returns 0.
6550 **/
dea31012005-04-17 16:05:31 -05006551int
6552lpfc_sli_setup(struct lpfc_hba *phba)
6553{
James Smarted957682007-06-17 19:56:37 -05006554 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05006555 struct lpfc_sli *psli = &phba->sli;
6556 struct lpfc_sli_ring *pring;
6557
6558 psli->num_rings = MAX_CONFIGURED_RINGS;
6559 psli->sli_flag = 0;
6560 psli->fcp_ring = LPFC_FCP_RING;
6561 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05006562 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05006563
James Bottomley604a3e32005-10-29 10:28:33 -05006564 psli->iocbq_lookup = NULL;
6565 psli->iocbq_lookup_len = 0;
6566 psli->last_iotag = 0;
6567
dea31012005-04-17 16:05:31 -05006568 for (i = 0; i < psli->num_rings; i++) {
6569 pring = &psli->ring[i];
6570 switch (i) {
6571 case LPFC_FCP_RING: /* ring 0 - FCP */
6572 /* numCiocb and numRiocb are used in config_port */
6573 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6574 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6575 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6576 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6577 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6578 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006579 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006580 SLI3_IOCB_CMD_SIZE :
6581 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006582 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006583 SLI3_IOCB_RSP_SIZE :
6584 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006585 pring->iotag_ctr = 0;
6586 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05006587 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05006588 pring->fast_iotag = pring->iotag_max;
6589 pring->num_mask = 0;
6590 break;
James Smarta4bc3372006-12-02 13:34:16 -05006591 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05006592 /* numCiocb and numRiocb are used in config_port */
6593 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6594 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006595 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006596 SLI3_IOCB_CMD_SIZE :
6597 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006598 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006599 SLI3_IOCB_RSP_SIZE :
6600 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05006601 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05006602 pring->num_mask = 0;
6603 break;
6604 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6605 /* numCiocb and numRiocb are used in config_port */
6606 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6607 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006608 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006609 SLI3_IOCB_CMD_SIZE :
6610 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006611 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006612 SLI3_IOCB_RSP_SIZE :
6613 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006614 pring->fast_iotag = 0;
6615 pring->iotag_ctr = 0;
6616 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04006617 pring->lpfc_sli_rcv_async_status =
6618 lpfc_sli_async_event_handler;
James Smart6669f9b2009-10-02 15:16:45 -04006619 pring->num_mask = LPFC_MAX_RING_MASK;
dea31012005-04-17 16:05:31 -05006620 pring->prt[0].profile = 0; /* Mask 0 */
James Smart6a9c52c2009-10-02 15:16:51 -04006621 pring->prt[0].rctl = FC_RCTL_ELS_REQ;
6622 pring->prt[0].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05006623 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006624 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006625 pring->prt[1].profile = 0; /* Mask 1 */
James Smart6a9c52c2009-10-02 15:16:51 -04006626 pring->prt[1].rctl = FC_RCTL_ELS_REP;
6627 pring->prt[1].type = FC_TYPE_ELS;
dea31012005-04-17 16:05:31 -05006628 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006629 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006630 pring->prt[2].profile = 0; /* Mask 2 */
6631 /* NameServer Inquiry */
James Smart6a9c52c2009-10-02 15:16:51 -04006632 pring->prt[2].rctl = FC_RCTL_DD_UNSOL_CTL;
dea31012005-04-17 16:05:31 -05006633 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04006634 pring->prt[2].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05006635 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006636 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05006637 pring->prt[3].profile = 0; /* Mask 3 */
6638 /* NameServer response */
James Smart6a9c52c2009-10-02 15:16:51 -04006639 pring->prt[3].rctl = FC_RCTL_DD_SOL_CTL;
dea31012005-04-17 16:05:31 -05006640 /* NameServer */
James Smart6a9c52c2009-10-02 15:16:51 -04006641 pring->prt[3].type = FC_TYPE_CT;
dea31012005-04-17 16:05:31 -05006642 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006643 lpfc_ct_unsol_event;
James Smart6669f9b2009-10-02 15:16:45 -04006644 /* abort unsolicited sequence */
6645 pring->prt[4].profile = 0; /* Mask 4 */
6646 pring->prt[4].rctl = FC_RCTL_BA_ABTS;
6647 pring->prt[4].type = FC_TYPE_BLS;
6648 pring->prt[4].lpfc_sli_rcv_unsol_event =
6649 lpfc_sli4_ct_abort_unsol_event;
dea31012005-04-17 16:05:31 -05006650 break;
6651 }
James Smarted957682007-06-17 19:56:37 -05006652 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
James Smart92d7f7b2007-06-17 19:56:38 -05006653 (pring->numRiocb * pring->sizeRiocb);
dea31012005-04-17 16:05:31 -05006654 }
James Smarted957682007-06-17 19:56:37 -05006655 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05006656 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04006657 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6658 "SLI2 SLIM Data: x%x x%lx\n",
6659 phba->brd_no, totiocbsize,
6660 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05006661 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006662 if (phba->cfg_multi_ring_support == 2)
6663 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05006664
6665 return 0;
6666}
6667
James Smarte59058c2008-08-24 21:49:00 -04006668/**
James Smart3621a712009-04-06 18:47:14 -04006669 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04006670 * @phba: Pointer to HBA context object.
6671 *
6672 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6673 * ring. This function also initializes ring indices of each ring.
6674 * This function is called during the initialization of the SLI
6675 * interface of an HBA.
6676 * This function is called with no lock held and always returns
6677 * 1.
6678 **/
dea31012005-04-17 16:05:31 -05006679int
James Smart2e0fef82007-06-17 19:56:36 -05006680lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006681{
6682 struct lpfc_sli *psli;
6683 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05006684 int i;
dea31012005-04-17 16:05:31 -05006685
6686 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05006687 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006688 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05006689 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05006690 /* Initialize list headers for txq and txcmplq as double linked lists */
6691 for (i = 0; i < psli->num_rings; i++) {
6692 pring = &psli->ring[i];
6693 pring->ringno = i;
6694 pring->next_cmdidx = 0;
6695 pring->local_getidx = 0;
6696 pring->cmdidx = 0;
6697 INIT_LIST_HEAD(&pring->txq);
6698 INIT_LIST_HEAD(&pring->txcmplq);
6699 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05006700 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05006701 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05006702 }
James Smart2e0fef82007-06-17 19:56:36 -05006703 spin_unlock_irq(&phba->hbalock);
6704 return 1;
dea31012005-04-17 16:05:31 -05006705}
6706
James Smarte59058c2008-08-24 21:49:00 -04006707/**
James Smart04c68492009-05-22 14:52:52 -04006708 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6709 * @phba: Pointer to HBA context object.
6710 *
6711 * This routine flushes the mailbox command subsystem. It will unconditionally
6712 * flush all the mailbox commands in the three possible stages in the mailbox
6713 * command sub-system: pending mailbox command queue; the outstanding mailbox
6714 * command; and completed mailbox command queue. It is caller's responsibility
6715 * to make sure that the driver is in the proper state to flush the mailbox
6716 * command sub-system. Namely, the posting of mailbox commands into the
6717 * pending mailbox command queue from the various clients must be stopped;
6718 * either the HBA is in a state that it will never works on the outstanding
6719 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6720 * mailbox command has been completed.
6721 **/
6722static void
6723lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6724{
6725 LIST_HEAD(completions);
6726 struct lpfc_sli *psli = &phba->sli;
6727 LPFC_MBOXQ_t *pmb;
6728 unsigned long iflag;
6729
6730 /* Flush all the mailbox commands in the mbox system */
6731 spin_lock_irqsave(&phba->hbalock, iflag);
6732 /* The pending mailbox command queue */
6733 list_splice_init(&phba->sli.mboxq, &completions);
6734 /* The outstanding active mailbox command */
6735 if (psli->mbox_active) {
6736 list_add_tail(&psli->mbox_active->list, &completions);
6737 psli->mbox_active = NULL;
6738 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6739 }
6740 /* The completed mailbox command queue */
6741 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6742 spin_unlock_irqrestore(&phba->hbalock, iflag);
6743
6744 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6745 while (!list_empty(&completions)) {
6746 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6747 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6748 if (pmb->mbox_cmpl)
6749 pmb->mbox_cmpl(phba, pmb);
6750 }
6751}
6752
6753/**
James Smart3621a712009-04-06 18:47:14 -04006754 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04006755 * @vport: Pointer to virtual port object.
6756 *
6757 * lpfc_sli_host_down is called to clean up the resources
6758 * associated with a vport before destroying virtual
6759 * port data structures.
6760 * This function does following operations:
6761 * - Free discovery resources associated with this virtual
6762 * port.
6763 * - Free iocbs associated with this virtual port in
6764 * the txq.
6765 * - Send abort for all iocb commands associated with this
6766 * vport in txcmplq.
6767 *
6768 * This function is called with no lock held and always returns 1.
6769 **/
dea31012005-04-17 16:05:31 -05006770int
James Smart92d7f7b2007-06-17 19:56:38 -05006771lpfc_sli_host_down(struct lpfc_vport *vport)
6772{
James Smart858c9f62007-06-17 19:56:39 -05006773 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006774 struct lpfc_hba *phba = vport->phba;
6775 struct lpfc_sli *psli = &phba->sli;
6776 struct lpfc_sli_ring *pring;
6777 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05006778 int i;
6779 unsigned long flags = 0;
6780 uint16_t prev_pring_flag;
6781
6782 lpfc_cleanup_discovery_resources(vport);
6783
6784 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006785 for (i = 0; i < psli->num_rings; i++) {
6786 pring = &psli->ring[i];
6787 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04006788 /* Only slow rings */
6789 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006790 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006791 /* Set the lpfc data pending flag */
6792 set_bit(LPFC_DATA_READY, &phba->data_flags);
6793 }
James Smart92d7f7b2007-06-17 19:56:38 -05006794 /*
6795 * Error everything on the txq since these iocbs have not been
6796 * given to the FW yet.
6797 */
James Smart92d7f7b2007-06-17 19:56:38 -05006798 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6799 if (iocb->vport != vport)
6800 continue;
James Smart858c9f62007-06-17 19:56:39 -05006801 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006802 pring->txq_cnt--;
James Smart92d7f7b2007-06-17 19:56:38 -05006803 }
6804
6805 /* Next issue ABTS for everything on the txcmplq */
6806 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6807 list) {
6808 if (iocb->vport != vport)
6809 continue;
6810 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6811 }
6812
6813 pring->flag = prev_pring_flag;
6814 }
6815
6816 spin_unlock_irqrestore(&phba->hbalock, flags);
6817
James Smarta257bf92009-04-06 18:48:10 -04006818 /* Cancel all the IOCBs from the completions list */
6819 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6820 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05006821 return 1;
6822}
6823
James Smarte59058c2008-08-24 21:49:00 -04006824/**
James Smart3621a712009-04-06 18:47:14 -04006825 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04006826 * @phba: Pointer to HBA context object.
6827 *
6828 * This function cleans up all iocb, buffers, mailbox commands
6829 * while shutting down the HBA. This function is called with no
6830 * lock held and always returns 1.
6831 * This function does the following to cleanup driver resources:
6832 * - Free discovery resources for each virtual port
6833 * - Cleanup any pending fabric iocbs
6834 * - Iterate through the iocb txq and free each entry
6835 * in the list.
6836 * - Free up any buffer posted to the HBA
6837 * - Free mailbox commands in the mailbox queue.
6838 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006839int
James Smart2e0fef82007-06-17 19:56:36 -05006840lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006841{
James Smart2534ba72007-04-25 09:52:20 -04006842 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05006843 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006844 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05006845 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05006846 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04006847 int i;
6848
6849 /* Shutdown the mailbox command sub-system */
6850 lpfc_sli_mbox_sys_shutdown(phba);
dea31012005-04-17 16:05:31 -05006851
dea31012005-04-17 16:05:31 -05006852 lpfc_hba_down_prep(phba);
6853
James Smart92d7f7b2007-06-17 19:56:38 -05006854 lpfc_fabric_abort_hba(phba);
6855
James Smart2e0fef82007-06-17 19:56:36 -05006856 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006857 for (i = 0; i < psli->num_rings; i++) {
6858 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04006859 /* Only slow rings */
6860 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006861 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006862 /* Set the lpfc data pending flag */
6863 set_bit(LPFC_DATA_READY, &phba->data_flags);
6864 }
dea31012005-04-17 16:05:31 -05006865
6866 /*
6867 * Error everything on the txq since these iocbs have not been
6868 * given to the FW yet.
6869 */
James Smart2534ba72007-04-25 09:52:20 -04006870 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05006871 pring->txq_cnt = 0;
6872
dea31012005-04-17 16:05:31 -05006873 }
James Smart2e0fef82007-06-17 19:56:36 -05006874 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006875
James Smarta257bf92009-04-06 18:48:10 -04006876 /* Cancel all the IOCBs from the completions list */
6877 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6878 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04006879
James Smart0ff10d42008-01-11 01:52:36 -05006880 spin_lock_irqsave(&phba->hbalock, flags);
6881 list_splice_init(&phba->elsbuf, &completions);
6882 phba->elsbuf_cnt = 0;
6883 phba->elsbuf_prev_cnt = 0;
6884 spin_unlock_irqrestore(&phba->hbalock, flags);
6885
6886 while (!list_empty(&completions)) {
6887 list_remove_head(&completions, buf_ptr,
6888 struct lpfc_dmabuf, list);
6889 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6890 kfree(buf_ptr);
6891 }
6892
dea31012005-04-17 16:05:31 -05006893 /* Return any active mbox cmds */
6894 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05006895
James Smartda0436e2009-05-22 14:51:39 -04006896 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006897 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04006898 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006899
James Smartda0436e2009-05-22 14:51:39 -04006900 return 1;
6901}
James Smart92d7f7b2007-06-17 19:56:38 -05006902
James Smartda0436e2009-05-22 14:51:39 -04006903/**
6904 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6905 * @phba: Pointer to HBA context object.
6906 *
6907 * This function cleans up all queues, iocb, buffers, mailbox commands while
6908 * shutting down the SLI4 HBA FCoE function. This function is called with no
6909 * lock held and always returns 1.
6910 *
6911 * This function does the following to cleanup driver FCoE function resources:
6912 * - Free discovery resources for each virtual port
6913 * - Cleanup any pending fabric iocbs
6914 * - Iterate through the iocb txq and free each entry in the list.
6915 * - Free up any buffer posted to the HBA.
6916 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6917 * - Free mailbox commands in the mailbox queue.
6918 **/
6919int
6920lpfc_sli4_hba_down(struct lpfc_hba *phba)
6921{
6922 /* Stop the SLI4 device port */
6923 lpfc_stop_port(phba);
6924
6925 /* Tear down the queues in the HBA */
6926 lpfc_sli4_queue_unset(phba);
6927
6928 /* unregister default FCFI from the HBA */
6929 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6930
dea31012005-04-17 16:05:31 -05006931 return 1;
6932}
6933
James Smarte59058c2008-08-24 21:49:00 -04006934/**
James Smart3621a712009-04-06 18:47:14 -04006935 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04006936 * @srcp: Source memory pointer.
6937 * @destp: Destination memory pointer.
6938 * @cnt: Number of words required to be copied.
6939 *
6940 * This function is used for copying data between driver memory
6941 * and the SLI memory. This function also changes the endianness
6942 * of each word if native endianness is different from SLI
6943 * endianness. This function can be called with or without
6944 * lock.
6945 **/
dea31012005-04-17 16:05:31 -05006946void
6947lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6948{
6949 uint32_t *src = srcp;
6950 uint32_t *dest = destp;
6951 uint32_t ldata;
6952 int i;
6953
6954 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6955 ldata = *src;
6956 ldata = le32_to_cpu(ldata);
6957 *dest = ldata;
6958 src++;
6959 dest++;
6960 }
6961}
6962
James Smarte59058c2008-08-24 21:49:00 -04006963
6964/**
James Smarta0c87cb2009-07-19 10:01:10 -04006965 * lpfc_sli_bemem_bcopy - SLI memory copy function
6966 * @srcp: Source memory pointer.
6967 * @destp: Destination memory pointer.
6968 * @cnt: Number of words required to be copied.
6969 *
6970 * This function is used for copying data between a data structure
6971 * with big endian representation to local endianness.
6972 * This function can be called with or without lock.
6973 **/
6974void
6975lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6976{
6977 uint32_t *src = srcp;
6978 uint32_t *dest = destp;
6979 uint32_t ldata;
6980 int i;
6981
6982 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6983 ldata = *src;
6984 ldata = be32_to_cpu(ldata);
6985 *dest = ldata;
6986 src++;
6987 dest++;
6988 }
6989}
6990
6991/**
James Smart3621a712009-04-06 18:47:14 -04006992 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04006993 * @phba: Pointer to HBA context object.
6994 * @pring: Pointer to driver SLI ring object.
6995 * @mp: Pointer to driver buffer object.
6996 *
6997 * This function is called with no lock held.
6998 * It always return zero after adding the buffer to the postbufq
6999 * buffer list.
7000 **/
dea31012005-04-17 16:05:31 -05007001int
James Smart2e0fef82007-06-17 19:56:36 -05007002lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7003 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05007004{
7005 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7006 later */
James Smart2e0fef82007-06-17 19:56:36 -05007007 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007008 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05007009 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05007010 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007011 return 0;
7012}
7013
James Smarte59058c2008-08-24 21:49:00 -04007014/**
James Smart3621a712009-04-06 18:47:14 -04007015 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04007016 * @phba: Pointer to HBA context object.
7017 *
7018 * When HBQ is enabled, buffers are searched based on tags. This function
7019 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7020 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7021 * does not conflict with tags of buffer posted for unsolicited events.
7022 * The function returns the allocated tag. The function is called with
7023 * no locks held.
7024 **/
James Smart76bb24e2007-10-27 13:38:00 -04007025uint32_t
7026lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
7027{
7028 spin_lock_irq(&phba->hbalock);
7029 phba->buffer_tag_count++;
7030 /*
7031 * Always set the QUE_BUFTAG_BIT to distiguish between
7032 * a tag assigned by HBQ.
7033 */
7034 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
7035 spin_unlock_irq(&phba->hbalock);
7036 return phba->buffer_tag_count;
7037}
7038
James Smarte59058c2008-08-24 21:49:00 -04007039/**
James Smart3621a712009-04-06 18:47:14 -04007040 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04007041 * @phba: Pointer to HBA context object.
7042 * @pring: Pointer to driver SLI ring object.
7043 * @tag: Buffer tag.
7044 *
7045 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7046 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7047 * iocb is posted to the response ring with the tag of the buffer.
7048 * This function searches the pring->postbufq list using the tag
7049 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7050 * iocb. If the buffer is found then lpfc_dmabuf object of the
7051 * buffer is returned to the caller else NULL is returned.
7052 * This function is called with no lock held.
7053 **/
James Smart76bb24e2007-10-27 13:38:00 -04007054struct lpfc_dmabuf *
7055lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7056 uint32_t tag)
7057{
7058 struct lpfc_dmabuf *mp, *next_mp;
7059 struct list_head *slp = &pring->postbufq;
7060
7061 /* Search postbufq, from the begining, looking for a match on tag */
7062 spin_lock_irq(&phba->hbalock);
7063 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7064 if (mp->buffer_tag == tag) {
7065 list_del_init(&mp->list);
7066 pring->postbufq_cnt--;
7067 spin_unlock_irq(&phba->hbalock);
7068 return mp;
7069 }
7070 }
7071
7072 spin_unlock_irq(&phba->hbalock);
7073 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04007074 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04007075 "ring %d Data x%lx x%p x%p x%x\n",
7076 pring->ringno, (unsigned long) tag,
7077 slp->next, slp->prev, pring->postbufq_cnt);
7078
7079 return NULL;
7080}
dea31012005-04-17 16:05:31 -05007081
James Smarte59058c2008-08-24 21:49:00 -04007082/**
James Smart3621a712009-04-06 18:47:14 -04007083 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04007084 * @phba: Pointer to HBA context object.
7085 * @pring: Pointer to driver SLI ring object.
7086 * @phys: DMA address of the buffer.
7087 *
7088 * This function searches the buffer list using the dma_address
7089 * of unsolicited event to find the driver's lpfc_dmabuf object
7090 * corresponding to the dma_address. The function returns the
7091 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7092 * This function is called by the ct and els unsolicited event
7093 * handlers to get the buffer associated with the unsolicited
7094 * event.
7095 *
7096 * This function is called with no lock held.
7097 **/
dea31012005-04-17 16:05:31 -05007098struct lpfc_dmabuf *
7099lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7100 dma_addr_t phys)
7101{
7102 struct lpfc_dmabuf *mp, *next_mp;
7103 struct list_head *slp = &pring->postbufq;
7104
7105 /* Search postbufq, from the begining, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05007106 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007107 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
7108 if (mp->phys == phys) {
7109 list_del_init(&mp->list);
7110 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05007111 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007112 return mp;
7113 }
7114 }
7115
James Smart2e0fef82007-06-17 19:56:36 -05007116 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05007117 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04007118 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05007119 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007120 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05007121 slp->next, slp->prev, pring->postbufq_cnt);
7122 return NULL;
7123}
7124
James Smarte59058c2008-08-24 21:49:00 -04007125/**
James Smart3621a712009-04-06 18:47:14 -04007126 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04007127 * @phba: Pointer to HBA context object.
7128 * @cmdiocb: Pointer to driver command iocb object.
7129 * @rspiocb: Pointer to driver response iocb object.
7130 *
7131 * This function is the completion handler for the abort iocbs for
7132 * ELS commands. This function is called from the ELS ring event
7133 * handler with no lock held. This function frees memory resources
7134 * associated with the abort iocb.
7135 **/
dea31012005-04-17 16:05:31 -05007136static void
James Smart2e0fef82007-06-17 19:56:36 -05007137lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7138 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05007139{
James Smart2e0fef82007-06-17 19:56:36 -05007140 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04007141 uint16_t abort_iotag, abort_context;
James Smart92d7f7b2007-06-17 19:56:38 -05007142 struct lpfc_iocbq *abort_iocb;
James Smart2680eea2007-04-25 09:52:55 -04007143 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
7144
7145 abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04007146
7147 if (irsp->ulpStatus) {
7148 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
7149 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
7150
James Smart2e0fef82007-06-17 19:56:36 -05007151 spin_lock_irq(&phba->hbalock);
James Smart45ed1192009-10-02 15:17:02 -04007152 if (phba->sli_rev < LPFC_SLI_REV4) {
7153 if (abort_iotag != 0 &&
7154 abort_iotag <= phba->sli.last_iotag)
7155 abort_iocb =
7156 phba->sli.iocbq_lookup[abort_iotag];
7157 } else
7158 /* For sli4 the abort_tag is the XRI,
7159 * so the abort routine puts the iotag of the iocb
7160 * being aborted in the context field of the abort
7161 * IOCB.
7162 */
7163 abort_iocb = phba->sli.iocbq_lookup[abort_context];
James Smart2680eea2007-04-25 09:52:55 -04007164
James Smart2680eea2007-04-25 09:52:55 -04007165 /*
James Smart58da1ff2008-04-07 10:15:56 -04007166 * If the iocb is not found in Firmware queue the iocb
7167 * might have completed already. Do not free it again.
7168 */
James Smart9b379602008-04-07 10:16:00 -04007169 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
James Smart45ed1192009-10-02 15:17:02 -04007170 if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
7171 spin_unlock_irq(&phba->hbalock);
7172 lpfc_sli_release_iocbq(phba, cmdiocb);
7173 return;
7174 }
7175 /* For SLI4 the ulpContext field for abort IOCB
7176 * holds the iotag of the IOCB being aborted so
7177 * the local abort_context needs to be reset to
7178 * match the aborted IOCBs ulpContext.
7179 */
7180 if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
7181 abort_context = abort_iocb->iocb.ulpContext;
James Smart58da1ff2008-04-07 10:15:56 -04007182 }
James Smart2a9bf3d2010-06-07 15:24:45 -04007183
7184 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
7185 "0327 Cannot abort els iocb %p "
7186 "with tag %x context %x, abort status %x, "
7187 "abort code %x\n",
7188 abort_iocb, abort_iotag, abort_context,
7189 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart58da1ff2008-04-07 10:15:56 -04007190 /*
James Smart2680eea2007-04-25 09:52:55 -04007191 * make sure we have the right iocbq before taking it
7192 * off the txcmplq and try to call completion routine.
7193 */
James Smart2e0fef82007-06-17 19:56:36 -05007194 if (!abort_iocb ||
7195 abort_iocb->iocb.ulpContext != abort_context ||
7196 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7197 spin_unlock_irq(&phba->hbalock);
James Smart341af102010-01-26 23:07:37 -05007198 else if (phba->sli_rev < LPFC_SLI_REV4) {
7199 /*
7200 * leave the SLI4 aborted command on the txcmplq
7201 * list and the command complete WCQE's XB bit
7202 * will tell whether the SGL (XRI) can be released
7203 * immediately or to the aborted SGL list for the
7204 * following abort XRI from the HBA.
7205 */
James Smart92d7f7b2007-06-17 19:56:38 -05007206 list_del_init(&abort_iocb->list);
James Smart2a9bf3d2010-06-07 15:24:45 -04007207 if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) {
7208 abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
7209 pring->txcmplq_cnt--;
7210 }
James Smart2680eea2007-04-25 09:52:55 -04007211
James Smart0ff10d42008-01-11 01:52:36 -05007212 /* Firmware could still be in progress of DMAing
7213 * payload, so don't free data buffer till after
7214 * a hbeat.
7215 */
7216 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart92d7f7b2007-06-17 19:56:38 -05007217 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
James Smart341af102010-01-26 23:07:37 -05007218 spin_unlock_irq(&phba->hbalock);
7219
James Smart92d7f7b2007-06-17 19:56:38 -05007220 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
James Smart341af102010-01-26 23:07:37 -05007221 abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
James Smart92d7f7b2007-06-17 19:56:38 -05007222 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
James Smart49198b32010-04-06 15:04:33 -04007223 } else
7224 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04007225 }
7226
James Bottomley604a3e32005-10-29 10:28:33 -05007227 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05007228 return;
7229}
7230
James Smarte59058c2008-08-24 21:49:00 -04007231/**
James Smart3621a712009-04-06 18:47:14 -04007232 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04007233 * @phba: Pointer to HBA context object.
7234 * @cmdiocb: Pointer to driver command iocb object.
7235 * @rspiocb: Pointer to driver response iocb object.
7236 *
7237 * The function is called from SLI ring event handler with no
7238 * lock held. This function is the completion handler for ELS commands
7239 * which are aborted. The function frees memory resources used for
7240 * the aborted ELS commands.
7241 **/
James Smart92d7f7b2007-06-17 19:56:38 -05007242static void
7243lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7244 struct lpfc_iocbq *rspiocb)
7245{
7246 IOCB_t *irsp = &rspiocb->iocb;
7247
7248 /* ELS cmd tag <ulpIoTag> completes */
7249 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04007250 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007251 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007252 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05007253 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05007254 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7255 lpfc_ct_free_iocb(phba, cmdiocb);
7256 else
7257 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05007258 return;
7259}
7260
James Smarte59058c2008-08-24 21:49:00 -04007261/**
James Smart3621a712009-04-06 18:47:14 -04007262 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04007263 * @phba: Pointer to HBA context object.
7264 * @pring: Pointer to driver SLI ring object.
7265 * @cmdiocb: Pointer to driver command iocb object.
7266 *
7267 * This function issues an abort iocb for the provided command
7268 * iocb. This function is called with hbalock held.
7269 * The function returns 0 when it fails due to memory allocation
7270 * failure or when the command iocb is an abort request.
7271 **/
dea31012005-04-17 16:05:31 -05007272int
James Smart2e0fef82007-06-17 19:56:36 -05007273lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7274 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05007275{
James Smart2e0fef82007-06-17 19:56:36 -05007276 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007277 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05007278 IOCB_t *icmd = NULL;
7279 IOCB_t *iabt = NULL;
James Smart07951072007-04-25 09:51:38 -04007280 int retval = IOCB_ERROR;
7281
James Smart92d7f7b2007-06-17 19:56:38 -05007282 /*
7283 * There are certain command types we don't want to abort. And we
7284 * don't want to abort commands that are already in the process of
7285 * being aborted.
James Smart07951072007-04-25 09:51:38 -04007286 */
7287 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05007288 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05007289 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7290 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04007291 return 0;
7292
James Smart858c9f62007-06-17 19:56:39 -05007293 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7294 * callback so that nothing happens when it finishes.
James Smart07951072007-04-25 09:51:38 -04007295 */
James Smart858c9f62007-06-17 19:56:39 -05007296 if ((vport->load_flag & FC_UNLOADING) &&
7297 (pring->ringno == LPFC_ELS_RING)) {
James Smart92d7f7b2007-06-17 19:56:38 -05007298 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7299 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7300 else
7301 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
James Smart07951072007-04-25 09:51:38 -04007302 goto abort_iotag_exit;
James Smart92d7f7b2007-06-17 19:56:38 -05007303 }
dea31012005-04-17 16:05:31 -05007304
7305 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05007306 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007307 if (abtsiocbp == NULL)
7308 return 0;
dea31012005-04-17 16:05:31 -05007309
James Smart07951072007-04-25 09:51:38 -04007310 /* This signals the response to set the correct status
James Smart341af102010-01-26 23:07:37 -05007311 * before calling the completion handler
James Smart07951072007-04-25 09:51:38 -04007312 */
7313 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7314
dea31012005-04-17 16:05:31 -05007315 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04007316 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7317 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smart45ed1192009-10-02 15:17:02 -04007318 if (phba->sli_rev == LPFC_SLI_REV4) {
James Smartda0436e2009-05-22 14:51:39 -04007319 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
James Smart45ed1192009-10-02 15:17:02 -04007320 iabt->un.acxri.abortContextTag = cmdiocb->iotag;
7321 }
James Smartda0436e2009-05-22 14:51:39 -04007322 else
7323 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007324 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04007325 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05007326
James Smart5ffc2662009-11-18 15:39:44 -05007327 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7328 abtsiocbp->fcp_wqidx = cmdiocb->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05007329 if (cmdiocb->iocb_flag & LPFC_IO_FCP)
7330 abtsiocbp->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05007331
James Smart2e0fef82007-06-17 19:56:36 -05007332 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04007333 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7334 else
7335 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7336
7337 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04007338
James Smarte8b62012007-08-02 11:10:09 -04007339 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7340 "0339 Abort xri x%x, original iotag x%x, "
7341 "abort cmd iotag x%x\n",
James Smart2a9bf3d2010-06-07 15:24:45 -04007342 iabt->un.acxri.abortIoTag,
James Smarte8b62012007-08-02 11:10:09 -04007343 iabt->un.acxri.abortContextTag,
James Smart2a9bf3d2010-06-07 15:24:45 -04007344 abtsiocbp->iotag);
James Smartda0436e2009-05-22 14:51:39 -04007345 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
James Smart07951072007-04-25 09:51:38 -04007346
James Smartd7c255b2008-08-24 21:50:00 -04007347 if (retval)
7348 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart07951072007-04-25 09:51:38 -04007349abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05007350 /*
7351 * Caller to this routine should check for IOCB_ERROR
7352 * and handle it properly. This routine no longer removes
7353 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04007354 */
James Smart2e0fef82007-06-17 19:56:36 -05007355 return retval;
dea31012005-04-17 16:05:31 -05007356}
7357
James Smarte59058c2008-08-24 21:49:00 -04007358/**
James Smart3621a712009-04-06 18:47:14 -04007359 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04007360 * @iocbq: Pointer to driver iocb object.
7361 * @vport: Pointer to driver virtual port object.
7362 * @tgt_id: SCSI ID of the target.
7363 * @lun_id: LUN ID of the scsi device.
7364 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7365 *
James Smart3621a712009-04-06 18:47:14 -04007366 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04007367 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7368 * 0 if the filtering criteria is met for the given iocb and will return
7369 * 1 if the filtering criteria is not met.
7370 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7371 * given iocb is for the SCSI device specified by vport, tgt_id and
7372 * lun_id parameter.
7373 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7374 * given iocb is for the SCSI target specified by vport and tgt_id
7375 * parameters.
7376 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7377 * given iocb is for the SCSI host associated with the given vport.
7378 * This function is called with no locks held.
7379 **/
dea31012005-04-17 16:05:31 -05007380static int
James Smart51ef4c22007-08-02 11:10:31 -04007381lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7382 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007383 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007384{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007385 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05007386 int rc = 1;
7387
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007388 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7389 return rc;
7390
James Smart51ef4c22007-08-02 11:10:31 -04007391 if (iocbq->vport != vport)
7392 return rc;
7393
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007394 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007395
James Smart495a7142008-06-14 22:52:59 -04007396 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05007397 return rc;
7398
7399 switch (ctx_cmd) {
7400 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04007401 if ((lpfc_cmd->rdata->pnode) &&
7402 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7403 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05007404 rc = 0;
7405 break;
7406 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04007407 if ((lpfc_cmd->rdata->pnode) &&
7408 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05007409 rc = 0;
7410 break;
dea31012005-04-17 16:05:31 -05007411 case LPFC_CTX_HOST:
7412 rc = 0;
7413 break;
7414 default:
7415 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07007416 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05007417 break;
7418 }
7419
7420 return rc;
7421}
7422
James Smarte59058c2008-08-24 21:49:00 -04007423/**
James Smart3621a712009-04-06 18:47:14 -04007424 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04007425 * @vport: Pointer to virtual port.
7426 * @tgt_id: SCSI ID of the target.
7427 * @lun_id: LUN ID of the scsi device.
7428 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7429 *
7430 * This function returns number of FCP commands pending for the vport.
7431 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7432 * commands pending on the vport associated with SCSI device specified
7433 * by tgt_id and lun_id parameters.
7434 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7435 * commands pending on the vport associated with SCSI target specified
7436 * by tgt_id parameter.
7437 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7438 * commands pending on the vport.
7439 * This function returns the number of iocbs which satisfy the filter.
7440 * This function is called without any lock held.
7441 **/
dea31012005-04-17 16:05:31 -05007442int
James Smart51ef4c22007-08-02 11:10:31 -04007443lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7444 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007445{
James Smart51ef4c22007-08-02 11:10:31 -04007446 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007447 struct lpfc_iocbq *iocbq;
7448 int sum, i;
dea31012005-04-17 16:05:31 -05007449
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007450 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7451 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007452
James Smart51ef4c22007-08-02 11:10:31 -04007453 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7454 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007455 sum++;
dea31012005-04-17 16:05:31 -05007456 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007457
dea31012005-04-17 16:05:31 -05007458 return sum;
7459}
7460
James Smarte59058c2008-08-24 21:49:00 -04007461/**
James Smart3621a712009-04-06 18:47:14 -04007462 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -04007463 * @phba: Pointer to HBA context object
7464 * @cmdiocb: Pointer to command iocb object.
7465 * @rspiocb: Pointer to response iocb object.
7466 *
7467 * This function is called when an aborted FCP iocb completes. This
7468 * function is called by the ring event handler with no lock held.
7469 * This function frees the iocb.
7470 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007471void
James Smart2e0fef82007-06-17 19:56:36 -05007472lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7473 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007474{
James Bottomley604a3e32005-10-29 10:28:33 -05007475 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007476 return;
7477}
7478
James Smarte59058c2008-08-24 21:49:00 -04007479/**
James Smart3621a712009-04-06 18:47:14 -04007480 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -04007481 * @vport: Pointer to virtual port.
7482 * @pring: Pointer to driver SLI ring object.
7483 * @tgt_id: SCSI ID of the target.
7484 * @lun_id: LUN ID of the scsi device.
7485 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7486 *
7487 * This function sends an abort command for every SCSI command
7488 * associated with the given virtual port pending on the ring
7489 * filtered by lpfc_sli_validate_fcp_iocb function.
7490 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7491 * FCP iocbs associated with lun specified by tgt_id and lun_id
7492 * parameters
7493 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7494 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7495 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7496 * FCP iocbs associated with virtual port.
7497 * This function returns number of iocbs it failed to abort.
7498 * This function is called with no locks held.
7499 **/
dea31012005-04-17 16:05:31 -05007500int
James Smart51ef4c22007-08-02 11:10:31 -04007501lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7502 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -05007503{
James Smart51ef4c22007-08-02 11:10:31 -04007504 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007505 struct lpfc_iocbq *iocbq;
7506 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05007507 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05007508 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007509 int i;
dea31012005-04-17 16:05:31 -05007510
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007511 for (i = 1; i <= phba->sli.last_iotag; i++) {
7512 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007513
James Smart51ef4c22007-08-02 11:10:31 -04007514 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -05007515 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05007516 continue;
7517
7518 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007519 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007520 if (abtsiocb == NULL) {
7521 errcnt++;
7522 continue;
7523 }
dea31012005-04-17 16:05:31 -05007524
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007525 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05007526 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7527 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04007528 if (phba->sli_rev == LPFC_SLI_REV4)
7529 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7530 else
7531 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007532 abtsiocb->iocb.ulpLe = 1;
7533 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smart2e0fef82007-06-17 19:56:36 -05007534 abtsiocb->vport = phba->pport;
dea31012005-04-17 16:05:31 -05007535
James Smart5ffc2662009-11-18 15:39:44 -05007536 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7537 abtsiocb->fcp_wqidx = iocbq->fcp_wqidx;
James Smart341af102010-01-26 23:07:37 -05007538 if (iocbq->iocb_flag & LPFC_IO_FCP)
7539 abtsiocb->iocb_flag |= LPFC_USE_FCPWQIDX;
James Smart5ffc2662009-11-18 15:39:44 -05007540
James Smart2e0fef82007-06-17 19:56:36 -05007541 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -05007542 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7543 else
7544 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7545
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007546 /* Setup callback routine and issue the command. */
7547 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -04007548 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7549 abtsiocb, 0);
dea31012005-04-17 16:05:31 -05007550 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05007551 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05007552 errcnt++;
7553 continue;
7554 }
7555 }
7556
7557 return errcnt;
7558}
7559
James Smarte59058c2008-08-24 21:49:00 -04007560/**
James Smart3621a712009-04-06 18:47:14 -04007561 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -04007562 * @phba: Pointer to HBA context object.
7563 * @cmdiocbq: Pointer to command iocb.
7564 * @rspiocbq: Pointer to response iocb.
7565 *
7566 * This function is the completion handler for iocbs issued using
7567 * lpfc_sli_issue_iocb_wait function. This function is called by the
7568 * ring event handler function without any lock held. This function
7569 * can be called from both worker thread context and interrupt
7570 * context. This function also can be called from other thread which
7571 * cleans up the SLI layer objects.
7572 * This function copy the contents of the response iocb to the
7573 * response iocb memory object provided by the caller of
7574 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7575 * sleeps for the iocb completion.
7576 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007577static void
7578lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7579 struct lpfc_iocbq *cmdiocbq,
7580 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05007581{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007582 wait_queue_head_t *pdone_q;
7583 unsigned long iflags;
James Smart0f65ff62010-02-26 14:14:23 -05007584 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05007585
James Smart2e0fef82007-06-17 19:56:36 -05007586 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007587 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7588 if (cmdiocbq->context2 && rspiocbq)
7589 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7590 &rspiocbq->iocb, sizeof(IOCB_t));
7591
James Smart0f65ff62010-02-26 14:14:23 -05007592 /* Set the exchange busy flag for task management commands */
7593 if ((cmdiocbq->iocb_flag & LPFC_IO_FCP) &&
7594 !(cmdiocbq->iocb_flag & LPFC_IO_LIBDFC)) {
7595 lpfc_cmd = container_of(cmdiocbq, struct lpfc_scsi_buf,
7596 cur_iocbq);
7597 lpfc_cmd->exch_busy = rspiocbq->iocb_flag & LPFC_EXCHANGE_BUSY;
7598 }
7599
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007600 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007601 if (pdone_q)
7602 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05007603 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -05007604 return;
7605}
7606
James Smarte59058c2008-08-24 21:49:00 -04007607/**
James Smartd11e31d2009-06-10 17:23:06 -04007608 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7609 * @phba: Pointer to HBA context object..
7610 * @piocbq: Pointer to command iocb.
7611 * @flag: Flag to test.
7612 *
7613 * This routine grabs the hbalock and then test the iocb_flag to
7614 * see if the passed in flag is set.
7615 * Returns:
7616 * 1 if flag is set.
7617 * 0 if flag is not set.
7618 **/
7619static int
7620lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7621 struct lpfc_iocbq *piocbq, uint32_t flag)
7622{
7623 unsigned long iflags;
7624 int ret;
7625
7626 spin_lock_irqsave(&phba->hbalock, iflags);
7627 ret = piocbq->iocb_flag & flag;
7628 spin_unlock_irqrestore(&phba->hbalock, iflags);
7629 return ret;
7630
7631}
7632
7633/**
James Smart3621a712009-04-06 18:47:14 -04007634 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -04007635 * @phba: Pointer to HBA context object..
7636 * @pring: Pointer to sli ring.
7637 * @piocb: Pointer to command iocb.
7638 * @prspiocbq: Pointer to response iocb.
7639 * @timeout: Timeout in number of seconds.
7640 *
7641 * This function issues the iocb to firmware and waits for the
7642 * iocb to complete. If the iocb command is not
7643 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7644 * Caller should not free the iocb resources if this function
7645 * returns IOCB_TIMEDOUT.
7646 * The function waits for the iocb completion using an
7647 * non-interruptible wait.
7648 * This function will sleep while waiting for iocb completion.
7649 * So, this function should not be called from any context which
7650 * does not allow sleeping. Due to the same reason, this function
7651 * cannot be called with interrupt disabled.
7652 * This function assumes that the iocb completions occur while
7653 * this function sleep. So, this function cannot be called from
7654 * the thread which process iocb completion for this ring.
7655 * This function clears the iocb_flag of the iocb object before
7656 * issuing the iocb and the iocb completion handler sets this
7657 * flag and wakes this thread when the iocb completes.
7658 * The contents of the response iocb will be copied to prspiocbq
7659 * by the completion handler when the command completes.
7660 * This function returns IOCB_SUCCESS when success.
7661 * This function is called with no lock held.
7662 **/
dea31012005-04-17 16:05:31 -05007663int
James Smart2e0fef82007-06-17 19:56:36 -05007664lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -04007665 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -05007666 struct lpfc_iocbq *piocb,
7667 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007668 uint32_t timeout)
dea31012005-04-17 16:05:31 -05007669{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007670 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007671 long timeleft, timeout_req = 0;
7672 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007673 uint32_t creg_val;
James Smart2a9bf3d2010-06-07 15:24:45 -04007674 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
dea31012005-04-17 16:05:31 -05007675 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007676 * If the caller has provided a response iocbq buffer, then context2
7677 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05007678 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007679 if (prspiocbq) {
7680 if (piocb->context2)
7681 return IOCB_ERROR;
7682 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05007683 }
7684
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007685 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7686 piocb->context_un.wait_queue = &done_q;
7687 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05007688
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007689 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7690 creg_val = readl(phba->HCregaddr);
7691 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7692 writel(creg_val, phba->HCregaddr);
7693 readl(phba->HCregaddr); /* flush */
7694 }
7695
James Smart2a9bf3d2010-06-07 15:24:45 -04007696 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb,
7697 SLI_IOCB_RET_IOCB);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007698 if (retval == IOCB_SUCCESS) {
7699 timeout_req = timeout * HZ;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007700 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -04007701 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007702 timeout_req);
dea31012005-04-17 16:05:31 -05007703
James Smart7054a602007-04-25 09:52:34 -04007704 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7705 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007706 "0331 IOCB wake signaled\n");
James Smart7054a602007-04-25 09:52:34 -04007707 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007708 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007709 "0338 IOCB wait timeout error - no "
7710 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007711 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04007712 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007713 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007714 "0330 IOCB wake NOT set, "
7715 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007716 timeout, (timeleft / jiffies));
7717 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05007718 }
James Smart2a9bf3d2010-06-07 15:24:45 -04007719 } else if (retval == IOCB_BUSY) {
7720 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
7721 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
7722 phba->iocb_cnt, pring->txq_cnt, pring->txcmplq_cnt);
7723 return retval;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007724 } else {
7725 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04007726 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007727 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007728 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05007729 }
7730
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007731 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7732 creg_val = readl(phba->HCregaddr);
7733 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7734 writel(creg_val, phba->HCregaddr);
7735 readl(phba->HCregaddr); /* flush */
7736 }
7737
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007738 if (prspiocbq)
7739 piocb->context2 = NULL;
7740
7741 piocb->context_un.wait_queue = NULL;
7742 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05007743 return retval;
7744}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007745
James Smarte59058c2008-08-24 21:49:00 -04007746/**
James Smart3621a712009-04-06 18:47:14 -04007747 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -04007748 * @phba: Pointer to HBA context object.
7749 * @pmboxq: Pointer to driver mailbox object.
7750 * @timeout: Timeout in number of seconds.
7751 *
7752 * This function issues the mailbox to firmware and waits for the
7753 * mailbox command to complete. If the mailbox command is not
7754 * completed within timeout seconds, it returns MBX_TIMEOUT.
7755 * The function waits for the mailbox completion using an
7756 * interruptible wait. If the thread is woken up due to a
7757 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7758 * should not free the mailbox resources, if this function returns
7759 * MBX_TIMEOUT.
7760 * This function will sleep while waiting for mailbox completion.
7761 * So, this function should not be called from any context which
7762 * does not allow sleeping. Due to the same reason, this function
7763 * cannot be called with interrupt disabled.
7764 * This function assumes that the mailbox completion occurs while
7765 * this function sleep. So, this function cannot be called from
7766 * the worker thread which processes mailbox completion.
7767 * This function is called in the context of HBA management
7768 * applications.
7769 * This function returns MBX_SUCCESS when successful.
7770 * This function is called with no lock held.
7771 **/
dea31012005-04-17 16:05:31 -05007772int
James Smart2e0fef82007-06-17 19:56:36 -05007773lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -05007774 uint32_t timeout)
7775{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007776 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05007777 int retval;
James Smart858c9f62007-06-17 19:56:39 -05007778 unsigned long flag;
dea31012005-04-17 16:05:31 -05007779
7780 /* The caller must leave context1 empty. */
James Smart98c9ea52007-10-27 13:37:33 -04007781 if (pmboxq->context1)
James Smart2e0fef82007-06-17 19:56:36 -05007782 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05007783
James Smart495a7142008-06-14 22:52:59 -04007784 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -05007785 /* setup wake call as IOCB callback */
7786 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7787 /* setup context field to pass wait_queue pointer to wake function */
7788 pmboxq->context1 = &done_q;
7789
dea31012005-04-17 16:05:31 -05007790 /* now issue the command */
7791 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7792
7793 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04007794 wait_event_interruptible_timeout(done_q,
7795 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7796 timeout * HZ);
7797
James Smart858c9f62007-06-17 19:56:39 -05007798 spin_lock_irqsave(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007799 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04007800 /*
7801 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7802 * else do not free the resources.
7803 */
James Smartd7c47992010-06-08 18:31:54 -04007804 if (pmboxq->mbox_flag & LPFC_MBX_WAKE) {
dea31012005-04-17 16:05:31 -05007805 retval = MBX_SUCCESS;
James Smartd7c47992010-06-08 18:31:54 -04007806 lpfc_sli4_swap_str(phba, pmboxq);
7807 } else {
James Smart7054a602007-04-25 09:52:34 -04007808 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -05007809 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7810 }
7811 spin_unlock_irqrestore(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007812 }
7813
dea31012005-04-17 16:05:31 -05007814 return retval;
7815}
7816
James Smarte59058c2008-08-24 21:49:00 -04007817/**
James Smart3772a992009-05-22 14:50:54 -04007818 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -04007819 * @phba: Pointer to HBA context.
7820 *
James Smart3772a992009-05-22 14:50:54 -04007821 * This function is called to shutdown the driver's mailbox sub-system.
7822 * It first marks the mailbox sub-system is in a block state to prevent
7823 * the asynchronous mailbox command from issued off the pending mailbox
7824 * command queue. If the mailbox command sub-system shutdown is due to
7825 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7826 * the mailbox sub-system flush routine to forcefully bring down the
7827 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7828 * as with offline or HBA function reset), this routine will wait for the
7829 * outstanding mailbox command to complete before invoking the mailbox
7830 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -04007831 **/
James Smart3772a992009-05-22 14:50:54 -04007832void
7833lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
James Smartb4c02652006-07-06 15:50:43 -04007834{
James Smart3772a992009-05-22 14:50:54 -04007835 struct lpfc_sli *psli = &phba->sli;
7836 uint8_t actcmd = MBX_HEARTBEAT;
7837 unsigned long timeout;
7838
7839 spin_lock_irq(&phba->hbalock);
7840 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7841 spin_unlock_irq(&phba->hbalock);
7842
7843 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7844 spin_lock_irq(&phba->hbalock);
7845 if (phba->sli.mbox_active)
7846 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7847 spin_unlock_irq(&phba->hbalock);
7848 /* Determine how long we might wait for the active mailbox
7849 * command to be gracefully completed by firmware.
7850 */
7851 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7852 1000) + jiffies;
7853 while (phba->sli.mbox_active) {
7854 /* Check active mailbox complete status every 2ms */
7855 msleep(2);
7856 if (time_after(jiffies, timeout))
7857 /* Timeout, let the mailbox flush routine to
7858 * forcefully release active mailbox command
7859 */
7860 break;
7861 }
7862 }
7863 lpfc_sli_mbox_sys_flush(phba);
7864}
7865
7866/**
7867 * lpfc_sli_eratt_read - read sli-3 error attention events
7868 * @phba: Pointer to HBA context.
7869 *
7870 * This function is called to read the SLI3 device error attention registers
7871 * for possible error attention events. The caller must hold the hostlock
7872 * with spin_lock_irq().
7873 *
7874 * This fucntion returns 1 when there is Error Attention in the Host Attention
7875 * Register and returns 0 otherwise.
7876 **/
7877static int
7878lpfc_sli_eratt_read(struct lpfc_hba *phba)
7879{
James Smarted957682007-06-17 19:56:37 -05007880 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -04007881
James Smart3772a992009-05-22 14:50:54 -04007882 /* Read chip Host Attention (HA) register */
7883 ha_copy = readl(phba->HAregaddr);
7884 if (ha_copy & HA_ERATT) {
7885 /* Read host status register to retrieve error event */
7886 lpfc_sli_read_hs(phba);
James Smartb4c02652006-07-06 15:50:43 -04007887
James Smart3772a992009-05-22 14:50:54 -04007888 /* Check if there is a deferred error condition is active */
7889 if ((HS_FFER1 & phba->work_hs) &&
7890 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7891 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -04007892 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -04007893 /* Clear all interrupt enable conditions */
7894 writel(0, phba->HCregaddr);
7895 readl(phba->HCregaddr);
7896 }
7897
7898 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -04007899 phba->work_ha |= HA_ERATT;
7900 /* Indicate polling handles this ERATT */
7901 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04007902 return 1;
James Smartb4c02652006-07-06 15:50:43 -04007903 }
James Smart3772a992009-05-22 14:50:54 -04007904 return 0;
James Smartb4c02652006-07-06 15:50:43 -04007905}
7906
James Smarte59058c2008-08-24 21:49:00 -04007907/**
James Smartda0436e2009-05-22 14:51:39 -04007908 * lpfc_sli4_eratt_read - read sli-4 error attention events
7909 * @phba: Pointer to HBA context.
7910 *
7911 * This function is called to read the SLI4 device error attention registers
7912 * for possible error attention events. The caller must hold the hostlock
7913 * with spin_lock_irq().
7914 *
7915 * This fucntion returns 1 when there is Error Attention in the Host Attention
7916 * Register and returns 0 otherwise.
7917 **/
7918static int
7919lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7920{
7921 uint32_t uerr_sta_hi, uerr_sta_lo;
James Smartda0436e2009-05-22 14:51:39 -04007922
7923 /* For now, use the SLI4 device internal unrecoverable error
7924 * registers for error attention. This can be changed later.
7925 */
James Smarta747c9c2009-11-18 15:41:10 -05007926 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7927 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7928 if ((~phba->sli4_hba.ue_mask_lo & uerr_sta_lo) ||
7929 (~phba->sli4_hba.ue_mask_hi & uerr_sta_hi)) {
7930 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7931 "1423 HBA Unrecoverable error: "
7932 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7933 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7934 uerr_sta_lo, uerr_sta_hi,
7935 phba->sli4_hba.ue_mask_lo,
7936 phba->sli4_hba.ue_mask_hi);
7937 phba->work_status[0] = uerr_sta_lo;
7938 phba->work_status[1] = uerr_sta_hi;
7939 /* Set the driver HA work bitmap */
7940 phba->work_ha |= HA_ERATT;
7941 /* Indicate polling handles this ERATT */
7942 phba->hba_flag |= HBA_ERATT_HANDLED;
7943 return 1;
James Smartda0436e2009-05-22 14:51:39 -04007944 }
7945 return 0;
7946}
7947
7948/**
James Smart3621a712009-04-06 18:47:14 -04007949 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -04007950 * @phba: Pointer to HBA context.
7951 *
James Smart3772a992009-05-22 14:50:54 -04007952 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -04007953 * error attention register bit for error attention events.
7954 *
7955 * This fucntion returns 1 when there is Error Attention in the Host Attention
7956 * Register and returns 0 otherwise.
7957 **/
7958int
7959lpfc_sli_check_eratt(struct lpfc_hba *phba)
7960{
7961 uint32_t ha_copy;
7962
7963 /* If somebody is waiting to handle an eratt, don't process it
7964 * here. The brdkill function will do this.
7965 */
7966 if (phba->link_flag & LS_IGNORE_ERATT)
7967 return 0;
7968
7969 /* Check if interrupt handler handles this ERATT */
7970 spin_lock_irq(&phba->hbalock);
7971 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7972 /* Interrupt handler has handled ERATT */
7973 spin_unlock_irq(&phba->hbalock);
7974 return 0;
7975 }
7976
James Smarta257bf92009-04-06 18:48:10 -04007977 /*
7978 * If there is deferred error attention, do not check for error
7979 * attention
7980 */
7981 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7982 spin_unlock_irq(&phba->hbalock);
7983 return 0;
7984 }
7985
James Smart3772a992009-05-22 14:50:54 -04007986 /* If PCI channel is offline, don't process it */
7987 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -04007988 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04007989 return 0;
7990 }
7991
7992 switch (phba->sli_rev) {
7993 case LPFC_SLI_REV2:
7994 case LPFC_SLI_REV3:
7995 /* Read chip Host Attention (HA) register */
7996 ha_copy = lpfc_sli_eratt_read(phba);
7997 break;
James Smartda0436e2009-05-22 14:51:39 -04007998 case LPFC_SLI_REV4:
7999 /* Read devcie Uncoverable Error (UERR) registers */
8000 ha_copy = lpfc_sli4_eratt_read(phba);
8001 break;
James Smart3772a992009-05-22 14:50:54 -04008002 default:
8003 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
8004 "0299 Invalid SLI revision (%d)\n",
8005 phba->sli_rev);
8006 ha_copy = 0;
8007 break;
James Smart93996272008-08-24 21:50:30 -04008008 }
8009 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04008010
8011 return ha_copy;
8012}
8013
8014/**
8015 * lpfc_intr_state_check - Check device state for interrupt handling
8016 * @phba: Pointer to HBA context.
8017 *
8018 * This inline routine checks whether a device or its PCI slot is in a state
8019 * that the interrupt should be handled.
8020 *
8021 * This function returns 0 if the device or the PCI slot is in a state that
8022 * interrupt should be handled, otherwise -EIO.
8023 */
8024static inline int
8025lpfc_intr_state_check(struct lpfc_hba *phba)
8026{
8027 /* If the pci channel is offline, ignore all the interrupts */
8028 if (unlikely(pci_channel_offline(phba->pcidev)))
8029 return -EIO;
8030
8031 /* Update device level interrupt statistics */
8032 phba->sli.slistat.sli_intr++;
8033
8034 /* Ignore all interrupts during initialization. */
8035 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
8036 return -EIO;
8037
James Smart93996272008-08-24 21:50:30 -04008038 return 0;
8039}
8040
8041/**
James Smart3772a992009-05-22 14:50:54 -04008042 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -04008043 * @irq: Interrupt number.
8044 * @dev_id: The device context pointer.
8045 *
James Smart93996272008-08-24 21:50:30 -04008046 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008047 * service routine when device with SLI-3 interface spec is enabled with
8048 * MSI-X multi-message interrupt mode and there are slow-path events in
8049 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8050 * interrupt mode, this function is called as part of the device-level
8051 * interrupt handler. When the PCI slot is in error recovery or the HBA
8052 * is undergoing initialization, the interrupt handler will not process
8053 * the interrupt. The link attention and ELS ring attention events are
8054 * handled by the worker thread. The interrupt handler signals the worker
8055 * thread and returns for these events. This function is called without
8056 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -04008057 * structures.
8058 *
8059 * This function returns IRQ_HANDLED when interrupt is handled else it
8060 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -04008061 **/
dea31012005-04-17 16:05:31 -05008062irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008063lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -05008064{
James Smart2e0fef82007-06-17 19:56:36 -05008065 struct lpfc_hba *phba;
James Smarta747c9c2009-11-18 15:41:10 -05008066 uint32_t ha_copy, hc_copy;
dea31012005-04-17 16:05:31 -05008067 uint32_t work_ha_copy;
8068 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008069 unsigned long iflag;
dea31012005-04-17 16:05:31 -05008070 uint32_t control;
8071
James Smart92d7f7b2007-06-17 19:56:38 -05008072 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -05008073 struct lpfc_vport *vport;
8074 struct lpfc_nodelist *ndlp;
8075 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -05008076 LPFC_MBOXQ_t *pmb;
8077 int rc;
8078
dea31012005-04-17 16:05:31 -05008079 /*
8080 * Get the driver's phba structure from the dev_id and
8081 * assume the HBA is not interrupting.
8082 */
James Smart93996272008-08-24 21:50:30 -04008083 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -05008084
8085 if (unlikely(!phba))
8086 return IRQ_NONE;
8087
dea31012005-04-17 16:05:31 -05008088 /*
James Smart93996272008-08-24 21:50:30 -04008089 * Stuff needs to be attented to when this function is invoked as an
8090 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008091 */
James Smart93996272008-08-24 21:50:30 -04008092 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008093 /* Check device state for handling interrupt */
8094 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008095 return IRQ_NONE;
8096 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -05008097 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart34b02dc2008-08-24 21:49:55 -04008098 ha_copy = readl(phba->HAregaddr);
James Smart93996272008-08-24 21:50:30 -04008099 /* If somebody is waiting to handle an eratt don't process it
8100 * here. The brdkill function will do this.
8101 */
8102 if (phba->link_flag & LS_IGNORE_ERATT)
8103 ha_copy &= ~HA_ERATT;
8104 /* Check the need for handling ERATT in interrupt handler */
8105 if (ha_copy & HA_ERATT) {
8106 if (phba->hba_flag & HBA_ERATT_HANDLED)
8107 /* ERATT polling has handled ERATT */
8108 ha_copy &= ~HA_ERATT;
8109 else
8110 /* Indicate interrupt handler handles ERATT */
8111 phba->hba_flag |= HBA_ERATT_HANDLED;
8112 }
James Smarta257bf92009-04-06 18:48:10 -04008113
8114 /*
8115 * If there is deferred error attention, do not check for any
8116 * interrupt.
8117 */
8118 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008119 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008120 return IRQ_NONE;
8121 }
8122
James Smart93996272008-08-24 21:50:30 -04008123 /* Clear up only attention source related to slow-path */
James Smarta747c9c2009-11-18 15:41:10 -05008124 hc_copy = readl(phba->HCregaddr);
8125 writel(hc_copy & ~(HC_MBINT_ENA | HC_R2INT_ENA |
8126 HC_LAINT_ENA | HC_ERINT_ENA),
8127 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008128 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
8129 phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05008130 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008131 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008132 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008133 } else
8134 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -05008135
dea31012005-04-17 16:05:31 -05008136 work_ha_copy = ha_copy & phba->work_ha_mask;
8137
James Smart93996272008-08-24 21:50:30 -04008138 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -05008139 if (work_ha_copy & HA_LATT) {
8140 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
8141 /*
8142 * Turn off Link Attention interrupts
8143 * until CLEAR_LA done
8144 */
James Smart5b75da22008-12-04 22:39:35 -05008145 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008146 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
8147 control = readl(phba->HCregaddr);
8148 control &= ~HC_LAINT_ENA;
8149 writel(control, phba->HCregaddr);
8150 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008151 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008152 }
8153 else
8154 work_ha_copy &= ~HA_LATT;
8155 }
8156
James Smart93996272008-08-24 21:50:30 -04008157 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -05008158 /*
8159 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8160 * the only slow ring.
8161 */
8162 status = (work_ha_copy &
8163 (HA_RXMASK << (4*LPFC_ELS_RING)));
8164 status >>= (4*LPFC_ELS_RING);
8165 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -05008166 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart858c9f62007-06-17 19:56:39 -05008167 control = readl(phba->HCregaddr);
James Smarta58cbd52007-08-02 11:09:43 -04008168
8169 lpfc_debugfs_slow_ring_trc(phba,
8170 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8171 control, status,
8172 (uint32_t)phba->sli.slistat.sli_intr);
8173
James Smart858c9f62007-06-17 19:56:39 -05008174 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -04008175 lpfc_debugfs_slow_ring_trc(phba,
8176 "ISR Disable ring:"
8177 "pwork:x%x hawork:x%x wait:x%x",
8178 phba->work_ha, work_ha_copy,
8179 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008180 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008181
James Smart858c9f62007-06-17 19:56:39 -05008182 control &=
8183 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -05008184 writel(control, phba->HCregaddr);
8185 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -05008186 }
James Smarta58cbd52007-08-02 11:09:43 -04008187 else {
8188 lpfc_debugfs_slow_ring_trc(phba,
8189 "ISR slow ring: pwork:"
8190 "x%x hawork:x%x wait:x%x",
8191 phba->work_ha, work_ha_copy,
8192 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04008193 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04008194 }
James Smart5b75da22008-12-04 22:39:35 -05008195 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008196 }
8197 }
James Smart5b75da22008-12-04 22:39:35 -05008198 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008199 if (work_ha_copy & HA_ERATT) {
James Smart93996272008-08-24 21:50:30 -04008200 lpfc_sli_read_hs(phba);
James Smarta257bf92009-04-06 18:48:10 -04008201 /*
8202 * Check if there is a deferred error condition
8203 * is active
8204 */
8205 if ((HS_FFER1 & phba->work_hs) &&
8206 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
8207 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
8208 phba->hba_flag |= DEFER_ERATT;
8209 /* Clear all interrupt enable conditions */
8210 writel(0, phba->HCregaddr);
8211 readl(phba->HCregaddr);
8212 }
8213 }
8214
James Smart93996272008-08-24 21:50:30 -04008215 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -05008216 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04008217 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -04008218 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -05008219 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -05008220
8221 /* First check out the status word */
8222 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
8223 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -05008224 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05008225 /*
8226 * Stray Mailbox Interrupt, mbxCommand <cmd>
8227 * mbxStatus <status>
8228 */
James Smart09372822008-01-11 01:52:54 -05008229 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -05008230 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04008231 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -05008232 "Interrupt mbxCommand x%x "
8233 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04008234 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -05008235 pmbox->mbxCommand,
8236 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -05008237 /* clear mailbox attention bit */
8238 work_ha_copy &= ~HA_MBATT;
8239 } else {
James Smart97eab632008-04-07 10:16:05 -04008240 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -05008241 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -05008242 phba->last_completion_time = jiffies;
8243 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -05008244 if (pmb->mbox_cmpl) {
8245 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8246 MAILBOX_CMD_SIZE);
James Smart7a470272010-03-15 11:25:20 -04008247 if (pmb->out_ext_byte_len &&
8248 pmb->context2)
8249 lpfc_sli_pcimem_bcopy(
8250 phba->mbox_ext,
8251 pmb->context2,
8252 pmb->out_ext_byte_len);
James Smart858c9f62007-06-17 19:56:39 -05008253 }
James Smart09372822008-01-11 01:52:54 -05008254 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8255 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8256
8257 lpfc_debugfs_disc_trc(vport,
8258 LPFC_DISC_TRC_MBOX_VPORT,
8259 "MBOX dflt rpi: : "
8260 "status:x%x rpi:x%x",
8261 (uint32_t)pmbox->mbxStatus,
8262 pmbox->un.varWords[0], 0);
8263
8264 if (!pmbox->mbxStatus) {
8265 mp = (struct lpfc_dmabuf *)
8266 (pmb->context1);
8267 ndlp = (struct lpfc_nodelist *)
8268 pmb->context2;
8269
8270 /* Reg_LOGIN of dflt RPI was
8271 * successful. new lets get
8272 * rid of the RPI using the
8273 * same mbox buffer.
8274 */
8275 lpfc_unreg_login(phba,
8276 vport->vpi,
8277 pmbox->un.varWords[0],
8278 pmb);
8279 pmb->mbox_cmpl =
8280 lpfc_mbx_cmpl_dflt_rpi;
8281 pmb->context1 = mp;
8282 pmb->context2 = ndlp;
8283 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -04008284 rc = lpfc_sli_issue_mbox(phba,
8285 pmb,
8286 MBX_NOWAIT);
8287 if (rc != MBX_BUSY)
8288 lpfc_printf_log(phba,
8289 KERN_ERR,
8290 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04008291 "0350 rc should have"
James Smart6a9c52c2009-10-02 15:16:51 -04008292 "been MBX_BUSY\n");
James Smart3772a992009-05-22 14:50:54 -04008293 if (rc != MBX_NOT_FINISHED)
8294 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -05008295 }
8296 }
James Smart5b75da22008-12-04 22:39:35 -05008297 spin_lock_irqsave(
8298 &phba->pport->work_port_lock,
8299 iflag);
James Smart09372822008-01-11 01:52:54 -05008300 phba->pport->work_port_events &=
8301 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -05008302 spin_unlock_irqrestore(
8303 &phba->pport->work_port_lock,
8304 iflag);
James Smart09372822008-01-11 01:52:54 -05008305 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -05008306 }
James Smart97eab632008-04-07 10:16:05 -04008307 } else
James Smart5b75da22008-12-04 22:39:35 -05008308 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008309
James Smart92d7f7b2007-06-17 19:56:38 -05008310 if ((work_ha_copy & HA_MBATT) &&
8311 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -05008312send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -05008313 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -04008314 do {
8315 rc = lpfc_sli_issue_mbox(phba, NULL,
8316 MBX_NOWAIT);
8317 } while (rc == MBX_NOT_FINISHED);
8318 if (rc != MBX_SUCCESS)
8319 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8320 LOG_SLI, "0349 rc should be "
James Smart6a9c52c2009-10-02 15:16:51 -04008321 "MBX_SUCCESS\n");
James Smart92d7f7b2007-06-17 19:56:38 -05008322 }
8323
James Smart5b75da22008-12-04 22:39:35 -05008324 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008325 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -05008326 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -04008327 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05008328 }
James Smart93996272008-08-24 21:50:30 -04008329 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -05008330
James Smart3772a992009-05-22 14:50:54 -04008331} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -04008332
8333/**
James Smart3772a992009-05-22 14:50:54 -04008334 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -04008335 * @irq: Interrupt number.
8336 * @dev_id: The device context pointer.
8337 *
8338 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008339 * service routine when device with SLI-3 interface spec is enabled with
8340 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8341 * ring event in the HBA. However, when the device is enabled with either
8342 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8343 * device-level interrupt handler. When the PCI slot is in error recovery
8344 * or the HBA is undergoing initialization, the interrupt handler will not
8345 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8346 * the intrrupt context. This function is called without any lock held.
8347 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008348 *
8349 * This function returns IRQ_HANDLED when interrupt is handled else it
8350 * returns IRQ_NONE.
8351 **/
8352irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008353lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008354{
8355 struct lpfc_hba *phba;
8356 uint32_t ha_copy;
8357 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008358 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -04008359
8360 /* Get the driver's phba structure from the dev_id and
8361 * assume the HBA is not interrupting.
8362 */
8363 phba = (struct lpfc_hba *) dev_id;
8364
8365 if (unlikely(!phba))
8366 return IRQ_NONE;
dea31012005-04-17 16:05:31 -05008367
8368 /*
James Smart93996272008-08-24 21:50:30 -04008369 * Stuff needs to be attented to when this function is invoked as an
8370 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008371 */
James Smart93996272008-08-24 21:50:30 -04008372 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008373 /* Check device state for handling interrupt */
8374 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008375 return IRQ_NONE;
8376 /* Need to read HA REG for FCP ring and other ring events */
8377 ha_copy = readl(phba->HAregaddr);
8378 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -05008379 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008380 /*
8381 * If there is deferred error attention, do not check for
8382 * any interrupt.
8383 */
8384 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008385 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008386 return IRQ_NONE;
8387 }
James Smart93996272008-08-24 21:50:30 -04008388 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8389 phba->HAregaddr);
8390 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008391 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008392 } else
8393 ha_copy = phba->ha_copy;
8394
8395 /*
8396 * Process all events on FCP ring. Take the optimized path for FCP IO.
8397 */
8398 ha_copy &= ~(phba->work_ha_mask);
8399
8400 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -05008401 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -05008402 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -05008403 lpfc_sli_handle_fast_ring_event(phba,
8404 &phba->sli.ring[LPFC_FCP_RING],
8405 status);
James Smarta4bc3372006-12-02 13:34:16 -05008406
8407 if (phba->cfg_multi_ring_support == 2) {
8408 /*
James Smart93996272008-08-24 21:50:30 -04008409 * Process all events on extra ring. Take the optimized path
8410 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -05008411 */
James Smart93996272008-08-24 21:50:30 -04008412 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -05008413 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -05008414 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -05008415 lpfc_sli_handle_fast_ring_event(phba,
8416 &phba->sli.ring[LPFC_EXTRA_RING],
8417 status);
8418 }
8419 }
dea31012005-04-17 16:05:31 -05008420 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04008421} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -05008422
James Smart93996272008-08-24 21:50:30 -04008423/**
James Smart3772a992009-05-22 14:50:54 -04008424 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -04008425 * @irq: Interrupt number.
8426 * @dev_id: The device context pointer.
8427 *
James Smart3772a992009-05-22 14:50:54 -04008428 * This function is the HBA device-level interrupt handler to device with
8429 * SLI-3 interface spec, called from the PCI layer when either MSI or
8430 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8431 * requires driver attention. This function invokes the slow-path interrupt
8432 * attention handling function and fast-path interrupt attention handling
8433 * function in turn to process the relevant HBA attention events. This
8434 * function is called without any lock held. It gets the hbalock to access
8435 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008436 *
8437 * This function returns IRQ_HANDLED when interrupt is handled, else it
8438 * returns IRQ_NONE.
8439 **/
8440irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008441lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008442{
8443 struct lpfc_hba *phba;
8444 irqreturn_t sp_irq_rc, fp_irq_rc;
8445 unsigned long status1, status2;
James Smarta747c9c2009-11-18 15:41:10 -05008446 uint32_t hc_copy;
James Smart93996272008-08-24 21:50:30 -04008447
8448 /*
8449 * Get the driver's phba structure from the dev_id and
8450 * assume the HBA is not interrupting.
8451 */
8452 phba = (struct lpfc_hba *) dev_id;
8453
8454 if (unlikely(!phba))
8455 return IRQ_NONE;
8456
James Smart3772a992009-05-22 14:50:54 -04008457 /* Check device state for handling interrupt */
8458 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008459 return IRQ_NONE;
8460
8461 spin_lock(&phba->hbalock);
8462 phba->ha_copy = readl(phba->HAregaddr);
8463 if (unlikely(!phba->ha_copy)) {
8464 spin_unlock(&phba->hbalock);
8465 return IRQ_NONE;
8466 } else if (phba->ha_copy & HA_ERATT) {
8467 if (phba->hba_flag & HBA_ERATT_HANDLED)
8468 /* ERATT polling has handled ERATT */
8469 phba->ha_copy &= ~HA_ERATT;
8470 else
8471 /* Indicate interrupt handler handles ERATT */
8472 phba->hba_flag |= HBA_ERATT_HANDLED;
8473 }
8474
James Smarta257bf92009-04-06 18:48:10 -04008475 /*
8476 * If there is deferred error attention, do not check for any interrupt.
8477 */
8478 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8479 spin_unlock_irq(&phba->hbalock);
8480 return IRQ_NONE;
8481 }
8482
James Smart93996272008-08-24 21:50:30 -04008483 /* Clear attention sources except link and error attentions */
James Smarta747c9c2009-11-18 15:41:10 -05008484 hc_copy = readl(phba->HCregaddr);
8485 writel(hc_copy & ~(HC_MBINT_ENA | HC_R0INT_ENA | HC_R1INT_ENA
8486 | HC_R2INT_ENA | HC_LAINT_ENA | HC_ERINT_ENA),
8487 phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008488 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
James Smarta747c9c2009-11-18 15:41:10 -05008489 writel(hc_copy, phba->HCregaddr);
James Smart93996272008-08-24 21:50:30 -04008490 readl(phba->HAregaddr); /* flush */
8491 spin_unlock(&phba->hbalock);
8492
8493 /*
8494 * Invokes slow-path host attention interrupt handling as appropriate.
8495 */
8496
8497 /* status of events with mailbox and link attention */
8498 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8499
8500 /* status of events with ELS ring */
8501 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8502 status2 >>= (4*LPFC_ELS_RING);
8503
8504 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008505 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008506 else
8507 sp_irq_rc = IRQ_NONE;
8508
8509 /*
8510 * Invoke fast-path host attention interrupt handling as appropriate.
8511 */
8512
8513 /* status of events with FCP ring */
8514 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8515 status1 >>= (4*LPFC_FCP_RING);
8516
8517 /* status of events with extra ring */
8518 if (phba->cfg_multi_ring_support == 2) {
8519 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8520 status2 >>= (4*LPFC_EXTRA_RING);
8521 } else
8522 status2 = 0;
8523
8524 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008525 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008526 else
8527 fp_irq_rc = IRQ_NONE;
8528
8529 /* Return device-level interrupt handling status */
8530 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -04008531} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -04008532
8533/**
8534 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8535 * @phba: pointer to lpfc hba data structure.
8536 *
8537 * This routine is invoked by the worker thread to process all the pending
8538 * SLI4 FCP abort XRI events.
8539 **/
8540void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8541{
8542 struct lpfc_cq_event *cq_event;
8543
8544 /* First, declare the fcp xri abort event has been handled */
8545 spin_lock_irq(&phba->hbalock);
8546 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8547 spin_unlock_irq(&phba->hbalock);
8548 /* Now, handle all the fcp xri abort events */
8549 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8550 /* Get the first event from the head of the event queue */
8551 spin_lock_irq(&phba->hbalock);
8552 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8553 cq_event, struct lpfc_cq_event, list);
8554 spin_unlock_irq(&phba->hbalock);
8555 /* Notify aborted XRI for FCP work queue */
8556 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8557 /* Free the event processed back to the free pool */
8558 lpfc_sli4_cq_event_release(phba, cq_event);
8559 }
8560}
8561
8562/**
8563 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8564 * @phba: pointer to lpfc hba data structure.
8565 *
8566 * This routine is invoked by the worker thread to process all the pending
8567 * SLI4 els abort xri events.
8568 **/
8569void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8570{
8571 struct lpfc_cq_event *cq_event;
8572
8573 /* First, declare the els xri abort event has been handled */
8574 spin_lock_irq(&phba->hbalock);
8575 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8576 spin_unlock_irq(&phba->hbalock);
8577 /* Now, handle all the els xri abort events */
8578 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8579 /* Get the first event from the head of the event queue */
8580 spin_lock_irq(&phba->hbalock);
8581 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8582 cq_event, struct lpfc_cq_event, list);
8583 spin_unlock_irq(&phba->hbalock);
8584 /* Notify aborted XRI for ELS work queue */
8585 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8586 /* Free the event processed back to the free pool */
8587 lpfc_sli4_cq_event_release(phba, cq_event);
8588 }
8589}
8590
James Smart341af102010-01-26 23:07:37 -05008591/**
8592 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8593 * @phba: pointer to lpfc hba data structure
8594 * @pIocbIn: pointer to the rspiocbq
8595 * @pIocbOut: pointer to the cmdiocbq
8596 * @wcqe: pointer to the complete wcqe
8597 *
8598 * This routine transfers the fields of a command iocbq to a response iocbq
8599 * by copying all the IOCB fields from command iocbq and transferring the
8600 * completion status information from the complete wcqe.
8601 **/
James Smart4f774512009-05-22 14:52:35 -04008602static void
James Smart341af102010-01-26 23:07:37 -05008603lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
8604 struct lpfc_iocbq *pIocbIn,
James Smart4f774512009-05-22 14:52:35 -04008605 struct lpfc_iocbq *pIocbOut,
8606 struct lpfc_wcqe_complete *wcqe)
8607{
James Smart341af102010-01-26 23:07:37 -05008608 unsigned long iflags;
James Smart4f774512009-05-22 14:52:35 -04008609 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8610
8611 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8612 sizeof(struct lpfc_iocbq) - offset);
James Smart4f774512009-05-22 14:52:35 -04008613 /* Map WCQE parameters into irspiocb parameters */
8614 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8615 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8616 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8617 pIocbIn->iocb.un.fcpi.fcpi_parm =
8618 pIocbOut->iocb.un.fcpi.fcpi_parm -
8619 wcqe->total_data_placed;
8620 else
8621 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05008622 else {
James Smart4f774512009-05-22 14:52:35 -04008623 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
James Smart695a8142010-01-26 23:08:03 -05008624 pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
8625 }
James Smart341af102010-01-26 23:07:37 -05008626
8627 /* Pick up HBA exchange busy condition */
8628 if (bf_get(lpfc_wcqe_c_xb, wcqe)) {
8629 spin_lock_irqsave(&phba->hbalock, iflags);
8630 pIocbIn->iocb_flag |= LPFC_EXCHANGE_BUSY;
8631 spin_unlock_irqrestore(&phba->hbalock, iflags);
8632 }
James Smart4f774512009-05-22 14:52:35 -04008633}
8634
8635/**
James Smart45ed1192009-10-02 15:17:02 -04008636 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8637 * @phba: Pointer to HBA context object.
8638 * @wcqe: Pointer to work-queue completion queue entry.
8639 *
8640 * This routine handles an ELS work-queue completion event and construct
8641 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8642 * discovery engine to handle.
8643 *
8644 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8645 **/
8646static struct lpfc_iocbq *
8647lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
8648 struct lpfc_iocbq *irspiocbq)
8649{
8650 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8651 struct lpfc_iocbq *cmdiocbq;
8652 struct lpfc_wcqe_complete *wcqe;
8653 unsigned long iflags;
8654
8655 wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
8656 spin_lock_irqsave(&phba->hbalock, iflags);
8657 pring->stats.iocb_event++;
8658 /* Look up the ELS command IOCB and create pseudo response IOCB */
8659 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8660 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8661 spin_unlock_irqrestore(&phba->hbalock, iflags);
8662
8663 if (unlikely(!cmdiocbq)) {
8664 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8665 "0386 ELS complete with no corresponding "
8666 "cmdiocb: iotag (%d)\n",
8667 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8668 lpfc_sli_release_iocbq(phba, irspiocbq);
8669 return NULL;
8670 }
8671
8672 /* Fake the irspiocbq and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05008673 lpfc_sli4_iocb_param_transfer(phba, irspiocbq, cmdiocbq, wcqe);
James Smart45ed1192009-10-02 15:17:02 -04008674
8675 return irspiocbq;
8676}
8677
8678/**
James Smart04c68492009-05-22 14:52:52 -04008679 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8680 * @phba: Pointer to HBA context object.
8681 * @cqe: Pointer to mailbox completion queue entry.
8682 *
8683 * This routine process a mailbox completion queue entry with asynchrous
8684 * event.
8685 *
8686 * Return: true if work posted to worker thread, otherwise false.
8687 **/
8688static bool
8689lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8690{
8691 struct lpfc_cq_event *cq_event;
8692 unsigned long iflags;
8693
8694 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8695 "0392 Async Event: word0:x%x, word1:x%x, "
8696 "word2:x%x, word3:x%x\n", mcqe->word0,
8697 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8698
8699 /* Allocate a new internal CQ_EVENT entry */
8700 cq_event = lpfc_sli4_cq_event_alloc(phba);
8701 if (!cq_event) {
8702 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8703 "0394 Failed to allocate CQ_EVENT entry\n");
8704 return false;
8705 }
8706
8707 /* Move the CQE into an asynchronous event entry */
8708 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8709 spin_lock_irqsave(&phba->hbalock, iflags);
8710 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8711 /* Set the async event flag */
8712 phba->hba_flag |= ASYNC_EVENT;
8713 spin_unlock_irqrestore(&phba->hbalock, iflags);
8714
8715 return true;
8716}
8717
8718/**
8719 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8720 * @phba: Pointer to HBA context object.
8721 * @cqe: Pointer to mailbox completion queue entry.
8722 *
8723 * This routine process a mailbox completion queue entry with mailbox
8724 * completion event.
8725 *
8726 * Return: true if work posted to worker thread, otherwise false.
8727 **/
8728static bool
8729lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8730{
8731 uint32_t mcqe_status;
8732 MAILBOX_t *mbox, *pmbox;
8733 struct lpfc_mqe *mqe;
8734 struct lpfc_vport *vport;
8735 struct lpfc_nodelist *ndlp;
8736 struct lpfc_dmabuf *mp;
8737 unsigned long iflags;
8738 LPFC_MBOXQ_t *pmb;
8739 bool workposted = false;
8740 int rc;
8741
8742 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8743 if (!bf_get(lpfc_trailer_completed, mcqe))
8744 goto out_no_mqe_complete;
8745
8746 /* Get the reference to the active mbox command */
8747 spin_lock_irqsave(&phba->hbalock, iflags);
8748 pmb = phba->sli.mbox_active;
8749 if (unlikely(!pmb)) {
8750 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8751 "1832 No pending MBOX command to handle\n");
8752 spin_unlock_irqrestore(&phba->hbalock, iflags);
8753 goto out_no_mqe_complete;
8754 }
8755 spin_unlock_irqrestore(&phba->hbalock, iflags);
8756 mqe = &pmb->u.mqe;
8757 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8758 mbox = phba->mbox;
8759 vport = pmb->vport;
8760
8761 /* Reset heartbeat timer */
8762 phba->last_completion_time = jiffies;
8763 del_timer(&phba->sli.mbox_tmo);
8764
8765 /* Move mbox data to caller's mailbox region, do endian swapping */
8766 if (pmb->mbox_cmpl && mbox)
8767 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8768 /* Set the mailbox status with SLI4 range 0x4000 */
8769 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8770 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8771 bf_set(lpfc_mqe_status, mqe,
8772 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8773
8774 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8775 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8776 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8777 "MBOX dflt rpi: status:x%x rpi:x%x",
8778 mcqe_status,
8779 pmbox->un.varWords[0], 0);
8780 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8781 mp = (struct lpfc_dmabuf *)(pmb->context1);
8782 ndlp = (struct lpfc_nodelist *)pmb->context2;
8783 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8784 * RID of the PPI using the same mbox buffer.
8785 */
8786 lpfc_unreg_login(phba, vport->vpi,
8787 pmbox->un.varWords[0], pmb);
8788 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8789 pmb->context1 = mp;
8790 pmb->context2 = ndlp;
8791 pmb->vport = vport;
8792 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8793 if (rc != MBX_BUSY)
8794 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8795 LOG_SLI, "0385 rc should "
8796 "have been MBX_BUSY\n");
8797 if (rc != MBX_NOT_FINISHED)
8798 goto send_current_mbox;
8799 }
8800 }
8801 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8802 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8803 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8804
8805 /* There is mailbox completion work to do */
8806 spin_lock_irqsave(&phba->hbalock, iflags);
8807 __lpfc_mbox_cmpl_put(phba, pmb);
8808 phba->work_ha |= HA_MBATT;
8809 spin_unlock_irqrestore(&phba->hbalock, iflags);
8810 workposted = true;
8811
8812send_current_mbox:
8813 spin_lock_irqsave(&phba->hbalock, iflags);
8814 /* Release the mailbox command posting token */
8815 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8816 /* Setting active mailbox pointer need to be in sync to flag clear */
8817 phba->sli.mbox_active = NULL;
8818 spin_unlock_irqrestore(&phba->hbalock, iflags);
8819 /* Wake up worker thread to post the next pending mailbox command */
8820 lpfc_worker_wake_up(phba);
8821out_no_mqe_complete:
8822 if (bf_get(lpfc_trailer_consumed, mcqe))
8823 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8824 return workposted;
8825}
8826
8827/**
8828 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8829 * @phba: Pointer to HBA context object.
8830 * @cqe: Pointer to mailbox completion queue entry.
8831 *
8832 * This routine process a mailbox completion queue entry, it invokes the
8833 * proper mailbox complete handling or asynchrous event handling routine
8834 * according to the MCQE's async bit.
8835 *
8836 * Return: true if work posted to worker thread, otherwise false.
8837 **/
8838static bool
8839lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8840{
8841 struct lpfc_mcqe mcqe;
8842 bool workposted;
8843
8844 /* Copy the mailbox MCQE and convert endian order as needed */
8845 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8846
8847 /* Invoke the proper event handling routine */
8848 if (!bf_get(lpfc_trailer_async, &mcqe))
8849 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8850 else
8851 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8852 return workposted;
8853}
8854
8855/**
James Smart4f774512009-05-22 14:52:35 -04008856 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8857 * @phba: Pointer to HBA context object.
8858 * @wcqe: Pointer to work-queue completion queue entry.
8859 *
8860 * This routine handles an ELS work-queue completion event.
8861 *
8862 * Return: true if work posted to worker thread, otherwise false.
8863 **/
8864static bool
8865lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8866 struct lpfc_wcqe_complete *wcqe)
8867{
James Smart4f774512009-05-22 14:52:35 -04008868 struct lpfc_iocbq *irspiocbq;
8869 unsigned long iflags;
James Smart2a9bf3d2010-06-07 15:24:45 -04008870 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
James Smart4f774512009-05-22 14:52:35 -04008871
James Smart45ed1192009-10-02 15:17:02 -04008872 /* Get an irspiocbq for later ELS response processing use */
James Smart4f774512009-05-22 14:52:35 -04008873 irspiocbq = lpfc_sli_get_iocbq(phba);
8874 if (!irspiocbq) {
8875 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smart2a9bf3d2010-06-07 15:24:45 -04008876 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
8877 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
8878 pring->txq_cnt, phba->iocb_cnt,
8879 phba->sli.ring[LPFC_FCP_RING].txcmplq_cnt,
8880 phba->sli.ring[LPFC_ELS_RING].txcmplq_cnt);
James Smart45ed1192009-10-02 15:17:02 -04008881 return false;
James Smart4f774512009-05-22 14:52:35 -04008882 }
James Smart4f774512009-05-22 14:52:35 -04008883
James Smart45ed1192009-10-02 15:17:02 -04008884 /* Save off the slow-path queue event for work thread to process */
8885 memcpy(&irspiocbq->cq_event.cqe.wcqe_cmpl, wcqe, sizeof(*wcqe));
James Smart4f774512009-05-22 14:52:35 -04008886 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart4d9ab992009-10-02 15:16:39 -04008887 list_add_tail(&irspiocbq->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04008888 &phba->sli4_hba.sp_queue_event);
8889 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4f774512009-05-22 14:52:35 -04008890 spin_unlock_irqrestore(&phba->hbalock, iflags);
James Smart4f774512009-05-22 14:52:35 -04008891
James Smart45ed1192009-10-02 15:17:02 -04008892 return true;
James Smart4f774512009-05-22 14:52:35 -04008893}
8894
8895/**
8896 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8897 * @phba: Pointer to HBA context object.
8898 * @wcqe: Pointer to work-queue completion queue entry.
8899 *
8900 * This routine handles slow-path WQ entry comsumed event by invoking the
8901 * proper WQ release routine to the slow-path WQ.
8902 **/
8903static void
8904lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8905 struct lpfc_wcqe_release *wcqe)
8906{
8907 /* Check for the slow-path ELS work queue */
8908 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8909 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8910 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8911 else
8912 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8913 "2579 Slow-path wqe consume event carries "
8914 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8915 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8916 phba->sli4_hba.els_wq->queue_id);
8917}
8918
8919/**
8920 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8921 * @phba: Pointer to HBA context object.
8922 * @cq: Pointer to a WQ completion queue.
8923 * @wcqe: Pointer to work-queue completion queue entry.
8924 *
8925 * This routine handles an XRI abort event.
8926 *
8927 * Return: true if work posted to worker thread, otherwise false.
8928 **/
8929static bool
8930lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8931 struct lpfc_queue *cq,
8932 struct sli4_wcqe_xri_aborted *wcqe)
8933{
8934 bool workposted = false;
8935 struct lpfc_cq_event *cq_event;
8936 unsigned long iflags;
8937
8938 /* Allocate a new internal CQ_EVENT entry */
8939 cq_event = lpfc_sli4_cq_event_alloc(phba);
8940 if (!cq_event) {
8941 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8942 "0602 Failed to allocate CQ_EVENT entry\n");
8943 return false;
8944 }
8945
8946 /* Move the CQE into the proper xri abort event list */
8947 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8948 switch (cq->subtype) {
8949 case LPFC_FCP:
8950 spin_lock_irqsave(&phba->hbalock, iflags);
8951 list_add_tail(&cq_event->list,
8952 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8953 /* Set the fcp xri abort event flag */
8954 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8955 spin_unlock_irqrestore(&phba->hbalock, iflags);
8956 workposted = true;
8957 break;
8958 case LPFC_ELS:
8959 spin_lock_irqsave(&phba->hbalock, iflags);
8960 list_add_tail(&cq_event->list,
8961 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8962 /* Set the els xri abort event flag */
8963 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8964 spin_unlock_irqrestore(&phba->hbalock, iflags);
8965 workposted = true;
8966 break;
8967 default:
8968 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8969 "0603 Invalid work queue CQE subtype (x%x)\n",
8970 cq->subtype);
8971 workposted = false;
8972 break;
8973 }
8974 return workposted;
8975}
8976
8977/**
James Smart4d9ab992009-10-02 15:16:39 -04008978 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
James Smart4f774512009-05-22 14:52:35 -04008979 * @phba: Pointer to HBA context object.
James Smart4d9ab992009-10-02 15:16:39 -04008980 * @rcqe: Pointer to receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04008981 *
James Smart4d9ab992009-10-02 15:16:39 -04008982 * This routine process a receive-queue completion queue entry.
James Smart4f774512009-05-22 14:52:35 -04008983 *
8984 * Return: true if work posted to worker thread, otherwise false.
8985 **/
8986static bool
James Smart4d9ab992009-10-02 15:16:39 -04008987lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
8988{
8989 bool workposted = false;
8990 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8991 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8992 struct hbq_dmabuf *dma_buf;
8993 uint32_t status;
8994 unsigned long iflags;
8995
James Smart4d9ab992009-10-02 15:16:39 -04008996 if (bf_get(lpfc_rcqe_rq_id, rcqe) != hrq->queue_id)
8997 goto out;
8998
8999 status = bf_get(lpfc_rcqe_status, rcqe);
9000 switch (status) {
9001 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
9002 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9003 "2537 Receive Frame Truncated!!\n");
9004 case FC_STATUS_RQ_SUCCESS:
James Smart5ffc2662009-11-18 15:39:44 -05009005 lpfc_sli4_rq_release(hrq, drq);
James Smart4d9ab992009-10-02 15:16:39 -04009006 spin_lock_irqsave(&phba->hbalock, iflags);
9007 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
9008 if (!dma_buf) {
9009 spin_unlock_irqrestore(&phba->hbalock, iflags);
9010 goto out;
9011 }
9012 memcpy(&dma_buf->cq_event.cqe.rcqe_cmpl, rcqe, sizeof(*rcqe));
9013 /* save off the frame for the word thread to process */
9014 list_add_tail(&dma_buf->cq_event.list,
James Smart45ed1192009-10-02 15:17:02 -04009015 &phba->sli4_hba.sp_queue_event);
James Smart4d9ab992009-10-02 15:16:39 -04009016 /* Frame received */
James Smart45ed1192009-10-02 15:17:02 -04009017 phba->hba_flag |= HBA_SP_QUEUE_EVT;
James Smart4d9ab992009-10-02 15:16:39 -04009018 spin_unlock_irqrestore(&phba->hbalock, iflags);
9019 workposted = true;
9020 break;
9021 case FC_STATUS_INSUFF_BUF_NEED_BUF:
9022 case FC_STATUS_INSUFF_BUF_FRM_DISC:
9023 /* Post more buffers if possible */
9024 spin_lock_irqsave(&phba->hbalock, iflags);
9025 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
9026 spin_unlock_irqrestore(&phba->hbalock, iflags);
9027 workposted = true;
9028 break;
9029 }
9030out:
9031 return workposted;
James Smart4d9ab992009-10-02 15:16:39 -04009032}
9033
9034/**
9035 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9036 * @phba: Pointer to HBA context object.
9037 * @cq: Pointer to the completion queue.
9038 * @wcqe: Pointer to a completion queue entry.
9039 *
9040 * This routine process a slow-path work-queue or recieve queue completion queue
9041 * entry.
9042 *
9043 * Return: true if work posted to worker thread, otherwise false.
9044 **/
9045static bool
9046lpfc_sli4_sp_handle_cqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
James Smart4f774512009-05-22 14:52:35 -04009047 struct lpfc_cqe *cqe)
9048{
James Smart45ed1192009-10-02 15:17:02 -04009049 struct lpfc_cqe cqevt;
James Smart4f774512009-05-22 14:52:35 -04009050 bool workposted = false;
9051
9052 /* Copy the work queue CQE and convert endian order if needed */
James Smart45ed1192009-10-02 15:17:02 -04009053 lpfc_sli_pcimem_bcopy(cqe, &cqevt, sizeof(struct lpfc_cqe));
James Smart4f774512009-05-22 14:52:35 -04009054
9055 /* Check and process for different type of WCQE and dispatch */
James Smart45ed1192009-10-02 15:17:02 -04009056 switch (bf_get(lpfc_cqe_code, &cqevt)) {
James Smart4f774512009-05-22 14:52:35 -04009057 case CQE_CODE_COMPL_WQE:
James Smart45ed1192009-10-02 15:17:02 -04009058 /* Process the WQ/RQ complete event */
James Smartbc739052010-08-04 16:11:18 -04009059 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009060 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009061 (struct lpfc_wcqe_complete *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009062 break;
9063 case CQE_CODE_RELEASE_WQE:
9064 /* Process the WQ release event */
9065 lpfc_sli4_sp_handle_rel_wcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009066 (struct lpfc_wcqe_release *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009067 break;
9068 case CQE_CODE_XRI_ABORTED:
9069 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -04009070 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009071 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
James Smart45ed1192009-10-02 15:17:02 -04009072 (struct sli4_wcqe_xri_aborted *)&cqevt);
James Smart4f774512009-05-22 14:52:35 -04009073 break;
James Smart4d9ab992009-10-02 15:16:39 -04009074 case CQE_CODE_RECEIVE:
9075 /* Process the RQ event */
James Smartbc739052010-08-04 16:11:18 -04009076 phba->last_completion_time = jiffies;
James Smart4d9ab992009-10-02 15:16:39 -04009077 workposted = lpfc_sli4_sp_handle_rcqe(phba,
James Smart45ed1192009-10-02 15:17:02 -04009078 (struct lpfc_rcqe *)&cqevt);
James Smart4d9ab992009-10-02 15:16:39 -04009079 break;
James Smart4f774512009-05-22 14:52:35 -04009080 default:
9081 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9082 "0388 Not a valid WCQE code: x%x\n",
James Smart45ed1192009-10-02 15:17:02 -04009083 bf_get(lpfc_cqe_code, &cqevt));
James Smart4f774512009-05-22 14:52:35 -04009084 break;
9085 }
9086 return workposted;
9087}
9088
9089/**
James Smart4f774512009-05-22 14:52:35 -04009090 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9091 * @phba: Pointer to HBA context object.
9092 * @eqe: Pointer to fast-path event queue entry.
9093 *
9094 * This routine process a event queue entry from the slow-path event queue.
9095 * It will check the MajorCode and MinorCode to determine this is for a
9096 * completion event on a completion queue, if not, an error shall be logged
9097 * and just return. Otherwise, it will get to the corresponding completion
9098 * queue and process all the entries on that completion queue, rearm the
9099 * completion queue, and then return.
9100 *
9101 **/
9102static void
9103lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
9104{
9105 struct lpfc_queue *cq = NULL, *childq, *speq;
9106 struct lpfc_cqe *cqe;
9107 bool workposted = false;
9108 int ecount = 0;
9109 uint16_t cqid;
9110
James Smartcb5172e2010-03-15 11:25:07 -04009111 if (bf_get_le32(lpfc_eqe_major_code, eqe) != 0) {
James Smart4f774512009-05-22 14:52:35 -04009112 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9113 "0359 Not a valid slow-path completion "
9114 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -04009115 bf_get_le32(lpfc_eqe_major_code, eqe),
9116 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -04009117 return;
9118 }
9119
9120 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -04009121 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -04009122
9123 /* Search for completion queue pointer matching this cqid */
9124 speq = phba->sli4_hba.sp_eq;
9125 list_for_each_entry(childq, &speq->child_list, list) {
9126 if (childq->queue_id == cqid) {
9127 cq = childq;
9128 break;
9129 }
9130 }
9131 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -04009132 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9133 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9134 "0365 Slow-path CQ identifier "
9135 "(%d) does not exist\n", cqid);
James Smart4f774512009-05-22 14:52:35 -04009136 return;
9137 }
9138
9139 /* Process all the entries to the CQ */
9140 switch (cq->type) {
9141 case LPFC_MCQ:
9142 while ((cqe = lpfc_sli4_cq_get(cq))) {
9143 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
9144 if (!(++ecount % LPFC_GET_QE_REL_INT))
9145 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9146 }
9147 break;
9148 case LPFC_WCQ:
9149 while ((cqe = lpfc_sli4_cq_get(cq))) {
James Smart4d9ab992009-10-02 15:16:39 -04009150 workposted |= lpfc_sli4_sp_handle_cqe(phba, cq, cqe);
James Smart4f774512009-05-22 14:52:35 -04009151 if (!(++ecount % LPFC_GET_QE_REL_INT))
9152 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9153 }
9154 break;
9155 default:
9156 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9157 "0370 Invalid completion queue type (%d)\n",
9158 cq->type);
9159 return;
9160 }
9161
9162 /* Catch the no cq entry condition, log an error */
9163 if (unlikely(ecount == 0))
9164 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9165 "0371 No entry from the CQ: identifier "
9166 "(x%x), type (%d)\n", cq->queue_id, cq->type);
9167
9168 /* In any case, flash and re-arm the RCQ */
9169 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9170
9171 /* wake up worker thread if there are works to be done */
9172 if (workposted)
9173 lpfc_worker_wake_up(phba);
9174}
9175
9176/**
9177 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9178 * @eqe: Pointer to fast-path completion queue entry.
9179 *
9180 * This routine process a fast-path work queue completion entry from fast-path
9181 * event queue for FCP command response completion.
9182 **/
9183static void
9184lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
9185 struct lpfc_wcqe_complete *wcqe)
9186{
9187 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
9188 struct lpfc_iocbq *cmdiocbq;
9189 struct lpfc_iocbq irspiocbq;
9190 unsigned long iflags;
9191
9192 spin_lock_irqsave(&phba->hbalock, iflags);
9193 pring->stats.iocb_event++;
9194 spin_unlock_irqrestore(&phba->hbalock, iflags);
9195
9196 /* Check for response status */
9197 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
9198 /* If resource errors reported from HBA, reduce queue
9199 * depth of the SCSI device.
9200 */
9201 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
9202 IOSTAT_LOCAL_REJECT) &&
9203 (wcqe->parameter == IOERR_NO_RESOURCES)) {
9204 phba->lpfc_rampdown_queue_depth(phba);
9205 }
9206 /* Log the error status */
9207 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9208 "0373 FCP complete error: status=x%x, "
9209 "hw_status=x%x, total_data_specified=%d, "
9210 "parameter=x%x, word3=x%x\n",
9211 bf_get(lpfc_wcqe_c_status, wcqe),
9212 bf_get(lpfc_wcqe_c_hw_status, wcqe),
9213 wcqe->total_data_placed, wcqe->parameter,
9214 wcqe->word3);
9215 }
9216
9217 /* Look up the FCP command IOCB and create pseudo response IOCB */
9218 spin_lock_irqsave(&phba->hbalock, iflags);
9219 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
9220 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9221 spin_unlock_irqrestore(&phba->hbalock, iflags);
9222 if (unlikely(!cmdiocbq)) {
9223 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9224 "0374 FCP complete with no corresponding "
9225 "cmdiocb: iotag (%d)\n",
9226 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9227 return;
9228 }
9229 if (unlikely(!cmdiocbq->iocb_cmpl)) {
9230 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9231 "0375 FCP cmdiocb not callback function "
9232 "iotag: (%d)\n",
9233 bf_get(lpfc_wcqe_c_request_tag, wcqe));
9234 return;
9235 }
9236
9237 /* Fake the irspiocb and copy necessary response information */
James Smart341af102010-01-26 23:07:37 -05009238 lpfc_sli4_iocb_param_transfer(phba, &irspiocbq, cmdiocbq, wcqe);
James Smart4f774512009-05-22 14:52:35 -04009239
James Smart0f65ff62010-02-26 14:14:23 -05009240 if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED) {
9241 spin_lock_irqsave(&phba->hbalock, iflags);
9242 cmdiocbq->iocb_flag &= ~LPFC_DRIVER_ABORTED;
9243 spin_unlock_irqrestore(&phba->hbalock, iflags);
9244 }
9245
James Smart4f774512009-05-22 14:52:35 -04009246 /* Pass the cmd_iocb and the rsp state to the upper layer */
9247 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
9248}
9249
9250/**
9251 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9252 * @phba: Pointer to HBA context object.
9253 * @cq: Pointer to completion queue.
9254 * @wcqe: Pointer to work-queue completion queue entry.
9255 *
9256 * This routine handles an fast-path WQ entry comsumed event by invoking the
9257 * proper WQ release routine to the slow-path WQ.
9258 **/
9259static void
9260lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9261 struct lpfc_wcqe_release *wcqe)
9262{
9263 struct lpfc_queue *childwq;
9264 bool wqid_matched = false;
9265 uint16_t fcp_wqid;
9266
9267 /* Check for fast-path FCP work queue release */
9268 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
9269 list_for_each_entry(childwq, &cq->child_list, list) {
9270 if (childwq->queue_id == fcp_wqid) {
9271 lpfc_sli4_wq_release(childwq,
9272 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
9273 wqid_matched = true;
9274 break;
9275 }
9276 }
9277 /* Report warning log message if no match found */
9278 if (wqid_matched != true)
9279 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9280 "2580 Fast-path wqe consume event carries "
9281 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
9282}
9283
9284/**
9285 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9286 * @cq: Pointer to the completion queue.
9287 * @eqe: Pointer to fast-path completion queue entry.
9288 *
9289 * This routine process a fast-path work queue completion entry from fast-path
9290 * event queue for FCP command response completion.
9291 **/
9292static int
9293lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9294 struct lpfc_cqe *cqe)
9295{
9296 struct lpfc_wcqe_release wcqe;
9297 bool workposted = false;
9298
9299 /* Copy the work queue CQE and convert endian order if needed */
9300 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9301
9302 /* Check and process for different type of WCQE and dispatch */
9303 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9304 case CQE_CODE_COMPL_WQE:
9305 /* Process the WQ complete event */
James Smart98fc5dd2010-06-07 15:24:29 -04009306 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009307 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9308 (struct lpfc_wcqe_complete *)&wcqe);
9309 break;
9310 case CQE_CODE_RELEASE_WQE:
9311 /* Process the WQ release event */
9312 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9313 (struct lpfc_wcqe_release *)&wcqe);
9314 break;
9315 case CQE_CODE_XRI_ABORTED:
9316 /* Process the WQ XRI abort event */
James Smartbc739052010-08-04 16:11:18 -04009317 phba->last_completion_time = jiffies;
James Smart4f774512009-05-22 14:52:35 -04009318 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9319 (struct sli4_wcqe_xri_aborted *)&wcqe);
9320 break;
9321 default:
9322 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9323 "0144 Not a valid WCQE code: x%x\n",
9324 bf_get(lpfc_wcqe_c_code, &wcqe));
9325 break;
9326 }
9327 return workposted;
9328}
9329
9330/**
9331 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9332 * @phba: Pointer to HBA context object.
9333 * @eqe: Pointer to fast-path event queue entry.
9334 *
9335 * This routine process a event queue entry from the fast-path event queue.
9336 * It will check the MajorCode and MinorCode to determine this is for a
9337 * completion event on a completion queue, if not, an error shall be logged
9338 * and just return. Otherwise, it will get to the corresponding completion
9339 * queue and process all the entries on the completion queue, rearm the
9340 * completion queue, and then return.
9341 **/
9342static void
9343lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9344 uint32_t fcp_cqidx)
9345{
9346 struct lpfc_queue *cq;
9347 struct lpfc_cqe *cqe;
9348 bool workposted = false;
9349 uint16_t cqid;
9350 int ecount = 0;
9351
James Smartcb5172e2010-03-15 11:25:07 -04009352 if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
James Smart4f774512009-05-22 14:52:35 -04009353 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9354 "0366 Not a valid fast-path completion "
9355 "event: majorcode=x%x, minorcode=x%x\n",
James Smartcb5172e2010-03-15 11:25:07 -04009356 bf_get_le32(lpfc_eqe_major_code, eqe),
9357 bf_get_le32(lpfc_eqe_minor_code, eqe));
James Smart4f774512009-05-22 14:52:35 -04009358 return;
9359 }
9360
9361 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9362 if (unlikely(!cq)) {
James Smart75baf692010-06-08 18:31:21 -04009363 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
9364 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9365 "0367 Fast-path completion queue "
9366 "does not exist\n");
James Smart4f774512009-05-22 14:52:35 -04009367 return;
9368 }
9369
9370 /* Get the reference to the corresponding CQ */
James Smartcb5172e2010-03-15 11:25:07 -04009371 cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
James Smart4f774512009-05-22 14:52:35 -04009372 if (unlikely(cqid != cq->queue_id)) {
9373 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9374 "0368 Miss-matched fast-path completion "
9375 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9376 cqid, cq->queue_id);
9377 return;
9378 }
9379
9380 /* Process all the entries to the CQ */
9381 while ((cqe = lpfc_sli4_cq_get(cq))) {
9382 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9383 if (!(++ecount % LPFC_GET_QE_REL_INT))
9384 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9385 }
9386
9387 /* Catch the no cq entry condition */
9388 if (unlikely(ecount == 0))
9389 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9390 "0369 No entry from fast-path completion "
9391 "queue fcpcqid=%d\n", cq->queue_id);
9392
9393 /* In any case, flash and re-arm the CQ */
9394 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9395
9396 /* wake up worker thread if there are works to be done */
9397 if (workposted)
9398 lpfc_worker_wake_up(phba);
9399}
9400
9401static void
9402lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9403{
9404 struct lpfc_eqe *eqe;
9405
9406 /* walk all the EQ entries and drop on the floor */
9407 while ((eqe = lpfc_sli4_eq_get(eq)))
9408 ;
9409
9410 /* Clear and re-arm the EQ */
9411 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9412}
9413
9414/**
9415 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9416 * @irq: Interrupt number.
9417 * @dev_id: The device context pointer.
9418 *
9419 * This function is directly called from the PCI layer as an interrupt
9420 * service routine when device with SLI-4 interface spec is enabled with
9421 * MSI-X multi-message interrupt mode and there are slow-path events in
9422 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9423 * interrupt mode, this function is called as part of the device-level
9424 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9425 * undergoing initialization, the interrupt handler will not process the
9426 * interrupt. The link attention and ELS ring attention events are handled
9427 * by the worker thread. The interrupt handler signals the worker thread
9428 * and returns for these events. This function is called without any lock
9429 * held. It gets the hbalock to access and update SLI data structures.
9430 *
9431 * This function returns IRQ_HANDLED when interrupt is handled else it
9432 * returns IRQ_NONE.
9433 **/
9434irqreturn_t
9435lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9436{
9437 struct lpfc_hba *phba;
9438 struct lpfc_queue *speq;
9439 struct lpfc_eqe *eqe;
9440 unsigned long iflag;
9441 int ecount = 0;
9442
9443 /*
9444 * Get the driver's phba structure from the dev_id
9445 */
9446 phba = (struct lpfc_hba *)dev_id;
9447
9448 if (unlikely(!phba))
9449 return IRQ_NONE;
9450
9451 /* Get to the EQ struct associated with this vector */
9452 speq = phba->sli4_hba.sp_eq;
9453
9454 /* Check device state for handling interrupt */
9455 if (unlikely(lpfc_intr_state_check(phba))) {
9456 /* Check again for link_state with lock held */
9457 spin_lock_irqsave(&phba->hbalock, iflag);
9458 if (phba->link_state < LPFC_LINK_DOWN)
9459 /* Flush, clear interrupt, and rearm the EQ */
9460 lpfc_sli4_eq_flush(phba, speq);
9461 spin_unlock_irqrestore(&phba->hbalock, iflag);
9462 return IRQ_NONE;
9463 }
9464
9465 /*
9466 * Process all the event on FCP slow-path EQ
9467 */
9468 while ((eqe = lpfc_sli4_eq_get(speq))) {
9469 lpfc_sli4_sp_handle_eqe(phba, eqe);
9470 if (!(++ecount % LPFC_GET_QE_REL_INT))
9471 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9472 }
9473
9474 /* Always clear and re-arm the slow-path EQ */
9475 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9476
9477 /* Catch the no cq entry condition */
9478 if (unlikely(ecount == 0)) {
9479 if (phba->intr_type == MSIX)
9480 /* MSI-X treated interrupt served as no EQ share INT */
9481 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9482 "0357 MSI-X interrupt with no EQE\n");
9483 else
9484 /* Non MSI-X treated on interrupt as EQ share INT */
9485 return IRQ_NONE;
9486 }
9487
9488 return IRQ_HANDLED;
9489} /* lpfc_sli4_sp_intr_handler */
9490
9491/**
9492 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9493 * @irq: Interrupt number.
9494 * @dev_id: The device context pointer.
9495 *
9496 * This function is directly called from the PCI layer as an interrupt
9497 * service routine when device with SLI-4 interface spec is enabled with
9498 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9499 * ring event in the HBA. However, when the device is enabled with either
9500 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9501 * device-level interrupt handler. When the PCI slot is in error recovery
9502 * or the HBA is undergoing initialization, the interrupt handler will not
9503 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9504 * the intrrupt context. This function is called without any lock held.
9505 * It gets the hbalock to access and update SLI data structures. Note that,
9506 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9507 * equal to that of FCP CQ index.
9508 *
9509 * This function returns IRQ_HANDLED when interrupt is handled else it
9510 * returns IRQ_NONE.
9511 **/
9512irqreturn_t
9513lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9514{
9515 struct lpfc_hba *phba;
9516 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9517 struct lpfc_queue *fpeq;
9518 struct lpfc_eqe *eqe;
9519 unsigned long iflag;
9520 int ecount = 0;
9521 uint32_t fcp_eqidx;
9522
9523 /* Get the driver's phba structure from the dev_id */
9524 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9525 phba = fcp_eq_hdl->phba;
9526 fcp_eqidx = fcp_eq_hdl->idx;
9527
9528 if (unlikely(!phba))
9529 return IRQ_NONE;
9530
9531 /* Get to the EQ struct associated with this vector */
9532 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9533
9534 /* Check device state for handling interrupt */
9535 if (unlikely(lpfc_intr_state_check(phba))) {
9536 /* Check again for link_state with lock held */
9537 spin_lock_irqsave(&phba->hbalock, iflag);
9538 if (phba->link_state < LPFC_LINK_DOWN)
9539 /* Flush, clear interrupt, and rearm the EQ */
9540 lpfc_sli4_eq_flush(phba, fpeq);
9541 spin_unlock_irqrestore(&phba->hbalock, iflag);
9542 return IRQ_NONE;
9543 }
9544
9545 /*
9546 * Process all the event on FCP fast-path EQ
9547 */
9548 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9549 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9550 if (!(++ecount % LPFC_GET_QE_REL_INT))
9551 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9552 }
9553
9554 /* Always clear and re-arm the fast-path EQ */
9555 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9556
9557 if (unlikely(ecount == 0)) {
9558 if (phba->intr_type == MSIX)
9559 /* MSI-X treated interrupt served as no EQ share INT */
9560 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9561 "0358 MSI-X interrupt with no EQE\n");
9562 else
9563 /* Non MSI-X treated on interrupt as EQ share INT */
9564 return IRQ_NONE;
9565 }
9566
9567 return IRQ_HANDLED;
9568} /* lpfc_sli4_fp_intr_handler */
9569
9570/**
9571 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9572 * @irq: Interrupt number.
9573 * @dev_id: The device context pointer.
9574 *
9575 * This function is the device-level interrupt handler to device with SLI-4
9576 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9577 * interrupt mode is enabled and there is an event in the HBA which requires
9578 * driver attention. This function invokes the slow-path interrupt attention
9579 * handling function and fast-path interrupt attention handling function in
9580 * turn to process the relevant HBA attention events. This function is called
9581 * without any lock held. It gets the hbalock to access and update SLI data
9582 * structures.
9583 *
9584 * This function returns IRQ_HANDLED when interrupt is handled, else it
9585 * returns IRQ_NONE.
9586 **/
9587irqreturn_t
9588lpfc_sli4_intr_handler(int irq, void *dev_id)
9589{
9590 struct lpfc_hba *phba;
9591 irqreturn_t sp_irq_rc, fp_irq_rc;
9592 bool fp_handled = false;
9593 uint32_t fcp_eqidx;
9594
9595 /* Get the driver's phba structure from the dev_id */
9596 phba = (struct lpfc_hba *)dev_id;
9597
9598 if (unlikely(!phba))
9599 return IRQ_NONE;
9600
9601 /*
9602 * Invokes slow-path host attention interrupt handling as appropriate.
9603 */
9604 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9605
9606 /*
9607 * Invoke fast-path host attention interrupt handling as appropriate.
9608 */
9609 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9610 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9611 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9612 if (fp_irq_rc == IRQ_HANDLED)
9613 fp_handled |= true;
9614 }
9615
9616 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9617} /* lpfc_sli4_intr_handler */
9618
9619/**
9620 * lpfc_sli4_queue_free - free a queue structure and associated memory
9621 * @queue: The queue structure to free.
9622 *
9623 * This function frees a queue structure and the DMAable memeory used for
9624 * the host resident queue. This function must be called after destroying the
9625 * queue on the HBA.
9626 **/
9627void
9628lpfc_sli4_queue_free(struct lpfc_queue *queue)
9629{
9630 struct lpfc_dmabuf *dmabuf;
9631
9632 if (!queue)
9633 return;
9634
9635 while (!list_empty(&queue->page_list)) {
9636 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9637 list);
James Smart49198b32010-04-06 15:04:33 -04009638 dma_free_coherent(&queue->phba->pcidev->dev, SLI4_PAGE_SIZE,
James Smart4f774512009-05-22 14:52:35 -04009639 dmabuf->virt, dmabuf->phys);
9640 kfree(dmabuf);
9641 }
9642 kfree(queue);
9643 return;
9644}
9645
9646/**
9647 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9648 * @phba: The HBA that this queue is being created on.
9649 * @entry_size: The size of each queue entry for this queue.
9650 * @entry count: The number of entries that this queue will handle.
9651 *
9652 * This function allocates a queue structure and the DMAable memory used for
9653 * the host resident queue. This function must be called before creating the
9654 * queue on the HBA.
9655 **/
9656struct lpfc_queue *
9657lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9658 uint32_t entry_count)
9659{
9660 struct lpfc_queue *queue;
9661 struct lpfc_dmabuf *dmabuf;
9662 int x, total_qe_count;
9663 void *dma_pointer;
James Smartcb5172e2010-03-15 11:25:07 -04009664 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smart4f774512009-05-22 14:52:35 -04009665
James Smartcb5172e2010-03-15 11:25:07 -04009666 if (!phba->sli4_hba.pc_sli4_params.supported)
9667 hw_page_size = SLI4_PAGE_SIZE;
9668
James Smart4f774512009-05-22 14:52:35 -04009669 queue = kzalloc(sizeof(struct lpfc_queue) +
9670 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9671 if (!queue)
9672 return NULL;
James Smartcb5172e2010-03-15 11:25:07 -04009673 queue->page_count = (ALIGN(entry_size * entry_count,
9674 hw_page_size))/hw_page_size;
James Smart4f774512009-05-22 14:52:35 -04009675 INIT_LIST_HEAD(&queue->list);
9676 INIT_LIST_HEAD(&queue->page_list);
9677 INIT_LIST_HEAD(&queue->child_list);
9678 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9679 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9680 if (!dmabuf)
9681 goto out_fail;
9682 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
James Smartcb5172e2010-03-15 11:25:07 -04009683 hw_page_size, &dmabuf->phys,
James Smart4f774512009-05-22 14:52:35 -04009684 GFP_KERNEL);
9685 if (!dmabuf->virt) {
9686 kfree(dmabuf);
9687 goto out_fail;
9688 }
James Smartcb5172e2010-03-15 11:25:07 -04009689 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -04009690 dmabuf->buffer_tag = x;
9691 list_add_tail(&dmabuf->list, &queue->page_list);
9692 /* initialize queue's entry array */
9693 dma_pointer = dmabuf->virt;
9694 for (; total_qe_count < entry_count &&
James Smartcb5172e2010-03-15 11:25:07 -04009695 dma_pointer < (hw_page_size + dmabuf->virt);
James Smart4f774512009-05-22 14:52:35 -04009696 total_qe_count++, dma_pointer += entry_size) {
9697 queue->qe[total_qe_count].address = dma_pointer;
9698 }
9699 }
9700 queue->entry_size = entry_size;
9701 queue->entry_count = entry_count;
9702 queue->phba = phba;
9703
9704 return queue;
9705out_fail:
9706 lpfc_sli4_queue_free(queue);
9707 return NULL;
9708}
9709
9710/**
9711 * lpfc_eq_create - Create an Event Queue on the HBA
9712 * @phba: HBA structure that indicates port to create a queue on.
9713 * @eq: The queue structure to use to create the event queue.
9714 * @imax: The maximum interrupt per second limit.
9715 *
9716 * This function creates an event queue, as detailed in @eq, on a port,
9717 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9718 *
9719 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9720 * is used to get the entry count and entry size that are necessary to
9721 * determine the number of pages to allocate and use for this queue. This
9722 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9723 * event queue. This function is asynchronous and will wait for the mailbox
9724 * command to finish before continuing.
9725 *
9726 * On success this function will return a zero. If unable to allocate enough
9727 * memory this function will return ENOMEM. If the queue create mailbox command
9728 * fails this function will return ENXIO.
9729 **/
9730uint32_t
9731lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9732{
9733 struct lpfc_mbx_eq_create *eq_create;
9734 LPFC_MBOXQ_t *mbox;
9735 int rc, length, status = 0;
9736 struct lpfc_dmabuf *dmabuf;
9737 uint32_t shdr_status, shdr_add_status;
9738 union lpfc_sli4_cfg_shdr *shdr;
9739 uint16_t dmult;
James Smart49198b32010-04-06 15:04:33 -04009740 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
9741
9742 if (!phba->sli4_hba.pc_sli4_params.supported)
9743 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -04009744
9745 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9746 if (!mbox)
9747 return -ENOMEM;
9748 length = (sizeof(struct lpfc_mbx_eq_create) -
9749 sizeof(struct lpfc_sli4_cfg_mhdr));
9750 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9751 LPFC_MBOX_OPCODE_EQ_CREATE,
9752 length, LPFC_SLI4_MBX_EMBED);
9753 eq_create = &mbox->u.mqe.un.eq_create;
9754 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9755 eq->page_count);
9756 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9757 LPFC_EQE_SIZE);
9758 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9759 /* Calculate delay multiper from maximum interrupt per second */
9760 dmult = LPFC_DMULT_CONST/imax - 1;
9761 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9762 dmult);
9763 switch (eq->entry_count) {
9764 default:
9765 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9766 "0360 Unsupported EQ count. (%d)\n",
9767 eq->entry_count);
9768 if (eq->entry_count < 256)
9769 return -EINVAL;
9770 /* otherwise default to smallest count (drop through) */
9771 case 256:
9772 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9773 LPFC_EQ_CNT_256);
9774 break;
9775 case 512:
9776 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9777 LPFC_EQ_CNT_512);
9778 break;
9779 case 1024:
9780 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9781 LPFC_EQ_CNT_1024);
9782 break;
9783 case 2048:
9784 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9785 LPFC_EQ_CNT_2048);
9786 break;
9787 case 4096:
9788 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9789 LPFC_EQ_CNT_4096);
9790 break;
9791 }
9792 list_for_each_entry(dmabuf, &eq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -04009793 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -04009794 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9795 putPaddrLow(dmabuf->phys);
9796 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9797 putPaddrHigh(dmabuf->phys);
9798 }
9799 mbox->vport = phba->pport;
9800 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9801 mbox->context1 = NULL;
9802 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9803 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9804 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9805 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9806 if (shdr_status || shdr_add_status || rc) {
9807 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9808 "2500 EQ_CREATE mailbox failed with "
9809 "status x%x add_status x%x, mbx status x%x\n",
9810 shdr_status, shdr_add_status, rc);
9811 status = -ENXIO;
9812 }
9813 eq->type = LPFC_EQ;
9814 eq->subtype = LPFC_NONE;
9815 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9816 if (eq->queue_id == 0xFFFF)
9817 status = -ENXIO;
9818 eq->host_index = 0;
9819 eq->hba_index = 0;
9820
James Smart8fa38512009-07-19 10:01:03 -04009821 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009822 return status;
9823}
9824
9825/**
9826 * lpfc_cq_create - Create a Completion Queue on the HBA
9827 * @phba: HBA structure that indicates port to create a queue on.
9828 * @cq: The queue structure to use to create the completion queue.
9829 * @eq: The event queue to bind this completion queue to.
9830 *
9831 * This function creates a completion queue, as detailed in @wq, on a port,
9832 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9833 *
9834 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9835 * is used to get the entry count and entry size that are necessary to
9836 * determine the number of pages to allocate and use for this queue. The @eq
9837 * is used to indicate which event queue to bind this completion queue to. This
9838 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9839 * completion queue. This function is asynchronous and will wait for the mailbox
9840 * command to finish before continuing.
9841 *
9842 * On success this function will return a zero. If unable to allocate enough
9843 * memory this function will return ENOMEM. If the queue create mailbox command
9844 * fails this function will return ENXIO.
9845 **/
9846uint32_t
9847lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9848 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9849{
9850 struct lpfc_mbx_cq_create *cq_create;
9851 struct lpfc_dmabuf *dmabuf;
9852 LPFC_MBOXQ_t *mbox;
9853 int rc, length, status = 0;
9854 uint32_t shdr_status, shdr_add_status;
9855 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -04009856 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
9857
9858 if (!phba->sli4_hba.pc_sli4_params.supported)
9859 hw_page_size = SLI4_PAGE_SIZE;
9860
James Smart4f774512009-05-22 14:52:35 -04009861
9862 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9863 if (!mbox)
9864 return -ENOMEM;
9865 length = (sizeof(struct lpfc_mbx_cq_create) -
9866 sizeof(struct lpfc_sli4_cfg_mhdr));
9867 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9868 LPFC_MBOX_OPCODE_CQ_CREATE,
9869 length, LPFC_SLI4_MBX_EMBED);
9870 cq_create = &mbox->u.mqe.un.cq_create;
9871 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9872 cq->page_count);
9873 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9874 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9875 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9876 switch (cq->entry_count) {
9877 default:
9878 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9879 "0361 Unsupported CQ count. (%d)\n",
9880 cq->entry_count);
9881 if (cq->entry_count < 256)
9882 return -EINVAL;
9883 /* otherwise default to smallest count (drop through) */
9884 case 256:
9885 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9886 LPFC_CQ_CNT_256);
9887 break;
9888 case 512:
9889 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9890 LPFC_CQ_CNT_512);
9891 break;
9892 case 1024:
9893 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9894 LPFC_CQ_CNT_1024);
9895 break;
9896 }
9897 list_for_each_entry(dmabuf, &cq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -04009898 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -04009899 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9900 putPaddrLow(dmabuf->phys);
9901 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9902 putPaddrHigh(dmabuf->phys);
9903 }
9904 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9905
9906 /* The IOCTL status is embedded in the mailbox subheader. */
9907 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9908 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9909 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9910 if (shdr_status || shdr_add_status || rc) {
9911 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9912 "2501 CQ_CREATE mailbox failed with "
9913 "status x%x add_status x%x, mbx status x%x\n",
9914 shdr_status, shdr_add_status, rc);
9915 status = -ENXIO;
9916 goto out;
9917 }
9918 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9919 if (cq->queue_id == 0xFFFF) {
9920 status = -ENXIO;
9921 goto out;
9922 }
9923 /* link the cq onto the parent eq child list */
9924 list_add_tail(&cq->list, &eq->child_list);
9925 /* Set up completion queue's type and subtype */
9926 cq->type = type;
9927 cq->subtype = subtype;
9928 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9929 cq->host_index = 0;
9930 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -04009931
James Smart8fa38512009-07-19 10:01:03 -04009932out:
9933 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009934 return status;
9935}
9936
9937/**
James Smartb19a0612010-04-06 14:48:51 -04009938 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
James Smart04c68492009-05-22 14:52:52 -04009939 * @phba: HBA structure that indicates port to create a queue on.
9940 * @mq: The queue structure to use to create the mailbox queue.
James Smartb19a0612010-04-06 14:48:51 -04009941 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
9942 * @cq: The completion queue to associate with this cq.
James Smart04c68492009-05-22 14:52:52 -04009943 *
James Smartb19a0612010-04-06 14:48:51 -04009944 * This function provides failback (fb) functionality when the
9945 * mq_create_ext fails on older FW generations. It's purpose is identical
9946 * to mq_create_ext otherwise.
James Smart04c68492009-05-22 14:52:52 -04009947 *
James Smartb19a0612010-04-06 14:48:51 -04009948 * This routine cannot fail as all attributes were previously accessed and
9949 * initialized in mq_create_ext.
James Smart04c68492009-05-22 14:52:52 -04009950 **/
James Smartb19a0612010-04-06 14:48:51 -04009951static void
9952lpfc_mq_create_fb_init(struct lpfc_hba *phba, struct lpfc_queue *mq,
9953 LPFC_MBOXQ_t *mbox, struct lpfc_queue *cq)
James Smart04c68492009-05-22 14:52:52 -04009954{
9955 struct lpfc_mbx_mq_create *mq_create;
9956 struct lpfc_dmabuf *dmabuf;
James Smartb19a0612010-04-06 14:48:51 -04009957 int length;
James Smart04c68492009-05-22 14:52:52 -04009958
James Smart04c68492009-05-22 14:52:52 -04009959 length = (sizeof(struct lpfc_mbx_mq_create) -
9960 sizeof(struct lpfc_sli4_cfg_mhdr));
9961 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9962 LPFC_MBOX_OPCODE_MQ_CREATE,
9963 length, LPFC_SLI4_MBX_EMBED);
9964 mq_create = &mbox->u.mqe.un.mq_create;
9965 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
James Smartb19a0612010-04-06 14:48:51 -04009966 mq->page_count);
James Smart04c68492009-05-22 14:52:52 -04009967 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
James Smartb19a0612010-04-06 14:48:51 -04009968 cq->queue_id);
James Smart04c68492009-05-22 14:52:52 -04009969 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9970 switch (mq->entry_count) {
James Smart04c68492009-05-22 14:52:52 -04009971 case 16:
9972 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9973 LPFC_MQ_CNT_16);
9974 break;
9975 case 32:
9976 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9977 LPFC_MQ_CNT_32);
9978 break;
9979 case 64:
9980 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9981 LPFC_MQ_CNT_64);
9982 break;
9983 case 128:
9984 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9985 LPFC_MQ_CNT_128);
9986 break;
9987 }
9988 list_for_each_entry(dmabuf, &mq->page_list, list) {
9989 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
James Smartb19a0612010-04-06 14:48:51 -04009990 putPaddrLow(dmabuf->phys);
James Smart04c68492009-05-22 14:52:52 -04009991 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smartb19a0612010-04-06 14:48:51 -04009992 putPaddrHigh(dmabuf->phys);
9993 }
9994}
9995
9996/**
9997 * lpfc_mq_create - Create a mailbox Queue on the HBA
9998 * @phba: HBA structure that indicates port to create a queue on.
9999 * @mq: The queue structure to use to create the mailbox queue.
10000 * @cq: The completion queue to associate with this cq.
10001 * @subtype: The queue's subtype.
10002 *
10003 * This function creates a mailbox queue, as detailed in @mq, on a port,
10004 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10005 *
10006 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10007 * is used to get the entry count and entry size that are necessary to
10008 * determine the number of pages to allocate and use for this queue. This
10009 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10010 * mailbox queue. This function is asynchronous and will wait for the mailbox
10011 * command to finish before continuing.
10012 *
10013 * On success this function will return a zero. If unable to allocate enough
10014 * memory this function will return ENOMEM. If the queue create mailbox command
10015 * fails this function will return ENXIO.
10016 **/
10017int32_t
10018lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
10019 struct lpfc_queue *cq, uint32_t subtype)
10020{
10021 struct lpfc_mbx_mq_create *mq_create;
10022 struct lpfc_mbx_mq_create_ext *mq_create_ext;
10023 struct lpfc_dmabuf *dmabuf;
10024 LPFC_MBOXQ_t *mbox;
10025 int rc, length, status = 0;
10026 uint32_t shdr_status, shdr_add_status;
10027 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010028 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
James Smartb19a0612010-04-06 14:48:51 -040010029
James Smart49198b32010-04-06 15:04:33 -040010030 if (!phba->sli4_hba.pc_sli4_params.supported)
10031 hw_page_size = SLI4_PAGE_SIZE;
James Smartb19a0612010-04-06 14:48:51 -040010032
10033 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10034 if (!mbox)
10035 return -ENOMEM;
10036 length = (sizeof(struct lpfc_mbx_mq_create_ext) -
10037 sizeof(struct lpfc_sli4_cfg_mhdr));
10038 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10039 LPFC_MBOX_OPCODE_MQ_CREATE_EXT,
10040 length, LPFC_SLI4_MBX_EMBED);
10041
10042 mq_create_ext = &mbox->u.mqe.un.mq_create_ext;
10043 bf_set(lpfc_mbx_mq_create_ext_num_pages, &mq_create_ext->u.request,
10044 mq->page_count);
10045 bf_set(lpfc_mbx_mq_create_ext_async_evt_link, &mq_create_ext->u.request,
10046 1);
10047 bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste,
10048 &mq_create_ext->u.request, 1);
10049 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5,
10050 &mq_create_ext->u.request, 1);
10051 bf_set(lpfc_mq_context_cq_id, &mq_create_ext->u.request.context,
10052 cq->queue_id);
10053 bf_set(lpfc_mq_context_valid, &mq_create_ext->u.request.context, 1);
10054 switch (mq->entry_count) {
10055 default:
10056 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10057 "0362 Unsupported MQ count. (%d)\n",
10058 mq->entry_count);
10059 if (mq->entry_count < 16)
10060 return -EINVAL;
10061 /* otherwise default to smallest count (drop through) */
10062 case 16:
10063 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10064 LPFC_MQ_CNT_16);
10065 break;
10066 case 32:
10067 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10068 LPFC_MQ_CNT_32);
10069 break;
10070 case 64:
10071 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10072 LPFC_MQ_CNT_64);
10073 break;
10074 case 128:
10075 bf_set(lpfc_mq_context_count, &mq_create_ext->u.request.context,
10076 LPFC_MQ_CNT_128);
10077 break;
10078 }
10079 list_for_each_entry(dmabuf, &mq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010080 memset(dmabuf->virt, 0, hw_page_size);
James Smartb19a0612010-04-06 14:48:51 -040010081 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_lo =
10082 putPaddrLow(dmabuf->phys);
10083 mq_create_ext->u.request.page[dmabuf->buffer_tag].addr_hi =
James Smart04c68492009-05-22 14:52:52 -040010084 putPaddrHigh(dmabuf->phys);
10085 }
10086 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
James Smartb19a0612010-04-06 14:48:51 -040010087 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create_ext->header.cfg_shdr;
10088 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10089 &mq_create_ext->u.response);
10090 if (rc != MBX_SUCCESS) {
10091 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
10092 "2795 MQ_CREATE_EXT failed with "
10093 "status x%x. Failback to MQ_CREATE.\n",
10094 rc);
10095 lpfc_mq_create_fb_init(phba, mq, mbox, cq);
10096 mq_create = &mbox->u.mqe.un.mq_create;
10097 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10098 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
10099 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id,
10100 &mq_create->u.response);
10101 }
10102
James Smart04c68492009-05-22 14:52:52 -040010103 /* The IOCTL status is embedded in the mailbox subheader. */
James Smart04c68492009-05-22 14:52:52 -040010104 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10105 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10106 if (shdr_status || shdr_add_status || rc) {
10107 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10108 "2502 MQ_CREATE mailbox failed with "
10109 "status x%x add_status x%x, mbx status x%x\n",
10110 shdr_status, shdr_add_status, rc);
10111 status = -ENXIO;
10112 goto out;
10113 }
James Smart04c68492009-05-22 14:52:52 -040010114 if (mq->queue_id == 0xFFFF) {
10115 status = -ENXIO;
10116 goto out;
10117 }
10118 mq->type = LPFC_MQ;
10119 mq->subtype = subtype;
10120 mq->host_index = 0;
10121 mq->hba_index = 0;
10122
10123 /* link the mq onto the parent cq child list */
10124 list_add_tail(&mq->list, &cq->child_list);
10125out:
James Smart8fa38512009-07-19 10:01:03 -040010126 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040010127 return status;
10128}
10129
10130/**
James Smart4f774512009-05-22 14:52:35 -040010131 * lpfc_wq_create - Create a Work Queue on the HBA
10132 * @phba: HBA structure that indicates port to create a queue on.
10133 * @wq: The queue structure to use to create the work queue.
10134 * @cq: The completion queue to bind this work queue to.
10135 * @subtype: The subtype of the work queue indicating its functionality.
10136 *
10137 * This function creates a work queue, as detailed in @wq, on a port, described
10138 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10139 *
10140 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10141 * is used to get the entry count and entry size that are necessary to
10142 * determine the number of pages to allocate and use for this queue. The @cq
10143 * is used to indicate which completion queue to bind this work queue to. This
10144 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10145 * work queue. This function is asynchronous and will wait for the mailbox
10146 * command to finish before continuing.
10147 *
10148 * On success this function will return a zero. If unable to allocate enough
10149 * memory this function will return ENOMEM. If the queue create mailbox command
10150 * fails this function will return ENXIO.
10151 **/
10152uint32_t
10153lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
10154 struct lpfc_queue *cq, uint32_t subtype)
10155{
10156 struct lpfc_mbx_wq_create *wq_create;
10157 struct lpfc_dmabuf *dmabuf;
10158 LPFC_MBOXQ_t *mbox;
10159 int rc, length, status = 0;
10160 uint32_t shdr_status, shdr_add_status;
10161 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010162 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10163
10164 if (!phba->sli4_hba.pc_sli4_params.supported)
10165 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040010166
10167 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10168 if (!mbox)
10169 return -ENOMEM;
10170 length = (sizeof(struct lpfc_mbx_wq_create) -
10171 sizeof(struct lpfc_sli4_cfg_mhdr));
10172 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10173 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
10174 length, LPFC_SLI4_MBX_EMBED);
10175 wq_create = &mbox->u.mqe.un.wq_create;
10176 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
10177 wq->page_count);
10178 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
10179 cq->queue_id);
10180 list_for_each_entry(dmabuf, &wq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010181 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010182 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10183 putPaddrLow(dmabuf->phys);
10184 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10185 putPaddrHigh(dmabuf->phys);
10186 }
10187 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10188 /* The IOCTL status is embedded in the mailbox subheader. */
10189 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
10190 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10191 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10192 if (shdr_status || shdr_add_status || rc) {
10193 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10194 "2503 WQ_CREATE mailbox failed with "
10195 "status x%x add_status x%x, mbx status x%x\n",
10196 shdr_status, shdr_add_status, rc);
10197 status = -ENXIO;
10198 goto out;
10199 }
10200 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
10201 if (wq->queue_id == 0xFFFF) {
10202 status = -ENXIO;
10203 goto out;
10204 }
10205 wq->type = LPFC_WQ;
10206 wq->subtype = subtype;
10207 wq->host_index = 0;
10208 wq->hba_index = 0;
10209
10210 /* link the wq onto the parent cq child list */
10211 list_add_tail(&wq->list, &cq->child_list);
10212out:
James Smart8fa38512009-07-19 10:01:03 -040010213 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010214 return status;
10215}
10216
10217/**
10218 * lpfc_rq_create - Create a Receive Queue on the HBA
10219 * @phba: HBA structure that indicates port to create a queue on.
10220 * @hrq: The queue structure to use to create the header receive queue.
10221 * @drq: The queue structure to use to create the data receive queue.
10222 * @cq: The completion queue to bind this work queue to.
10223 *
10224 * This function creates a receive buffer queue pair , as detailed in @hrq and
10225 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10226 * to the HBA.
10227 *
10228 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10229 * struct is used to get the entry count that is necessary to determine the
10230 * number of pages to use for this queue. The @cq is used to indicate which
10231 * completion queue to bind received buffers that are posted to these queues to.
10232 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10233 * receive queue pair. This function is asynchronous and will wait for the
10234 * mailbox command to finish before continuing.
10235 *
10236 * On success this function will return a zero. If unable to allocate enough
10237 * memory this function will return ENOMEM. If the queue create mailbox command
10238 * fails this function will return ENXIO.
10239 **/
10240uint32_t
10241lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10242 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
10243{
10244 struct lpfc_mbx_rq_create *rq_create;
10245 struct lpfc_dmabuf *dmabuf;
10246 LPFC_MBOXQ_t *mbox;
10247 int rc, length, status = 0;
10248 uint32_t shdr_status, shdr_add_status;
10249 union lpfc_sli4_cfg_shdr *shdr;
James Smart49198b32010-04-06 15:04:33 -040010250 uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
10251
10252 if (!phba->sli4_hba.pc_sli4_params.supported)
10253 hw_page_size = SLI4_PAGE_SIZE;
James Smart4f774512009-05-22 14:52:35 -040010254
10255 if (hrq->entry_count != drq->entry_count)
10256 return -EINVAL;
10257 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10258 if (!mbox)
10259 return -ENOMEM;
10260 length = (sizeof(struct lpfc_mbx_rq_create) -
10261 sizeof(struct lpfc_sli4_cfg_mhdr));
10262 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10263 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10264 length, LPFC_SLI4_MBX_EMBED);
10265 rq_create = &mbox->u.mqe.un.rq_create;
10266 switch (hrq->entry_count) {
10267 default:
10268 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10269 "2535 Unsupported RQ count. (%d)\n",
10270 hrq->entry_count);
10271 if (hrq->entry_count < 512)
10272 return -EINVAL;
10273 /* otherwise default to smallest count (drop through) */
10274 case 512:
10275 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10276 LPFC_RQ_RING_SIZE_512);
10277 break;
10278 case 1024:
10279 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10280 LPFC_RQ_RING_SIZE_1024);
10281 break;
10282 case 2048:
10283 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10284 LPFC_RQ_RING_SIZE_2048);
10285 break;
10286 case 4096:
10287 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10288 LPFC_RQ_RING_SIZE_4096);
10289 break;
10290 }
10291 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10292 cq->queue_id);
10293 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10294 hrq->page_count);
10295 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10296 LPFC_HDR_BUF_SIZE);
10297 list_for_each_entry(dmabuf, &hrq->page_list, list) {
James Smart49198b32010-04-06 15:04:33 -040010298 memset(dmabuf->virt, 0, hw_page_size);
James Smart4f774512009-05-22 14:52:35 -040010299 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10300 putPaddrLow(dmabuf->phys);
10301 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10302 putPaddrHigh(dmabuf->phys);
10303 }
10304 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10305 /* The IOCTL status is embedded in the mailbox subheader. */
10306 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10307 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10308 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10309 if (shdr_status || shdr_add_status || rc) {
10310 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10311 "2504 RQ_CREATE mailbox failed with "
10312 "status x%x add_status x%x, mbx status x%x\n",
10313 shdr_status, shdr_add_status, rc);
10314 status = -ENXIO;
10315 goto out;
10316 }
10317 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10318 if (hrq->queue_id == 0xFFFF) {
10319 status = -ENXIO;
10320 goto out;
10321 }
10322 hrq->type = LPFC_HRQ;
10323 hrq->subtype = subtype;
10324 hrq->host_index = 0;
10325 hrq->hba_index = 0;
10326
10327 /* now create the data queue */
10328 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10329 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
10330 length, LPFC_SLI4_MBX_EMBED);
10331 switch (drq->entry_count) {
10332 default:
10333 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10334 "2536 Unsupported RQ count. (%d)\n",
10335 drq->entry_count);
10336 if (drq->entry_count < 512)
10337 return -EINVAL;
10338 /* otherwise default to smallest count (drop through) */
10339 case 512:
10340 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10341 LPFC_RQ_RING_SIZE_512);
10342 break;
10343 case 1024:
10344 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10345 LPFC_RQ_RING_SIZE_1024);
10346 break;
10347 case 2048:
10348 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10349 LPFC_RQ_RING_SIZE_2048);
10350 break;
10351 case 4096:
10352 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
10353 LPFC_RQ_RING_SIZE_4096);
10354 break;
10355 }
10356 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
10357 cq->queue_id);
10358 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
10359 drq->page_count);
10360 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
10361 LPFC_DATA_BUF_SIZE);
10362 list_for_each_entry(dmabuf, &drq->page_list, list) {
10363 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
10364 putPaddrLow(dmabuf->phys);
10365 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
10366 putPaddrHigh(dmabuf->phys);
10367 }
10368 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10369 /* The IOCTL status is embedded in the mailbox subheader. */
10370 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
10371 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10372 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10373 if (shdr_status || shdr_add_status || rc) {
10374 status = -ENXIO;
10375 goto out;
10376 }
10377 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
10378 if (drq->queue_id == 0xFFFF) {
10379 status = -ENXIO;
10380 goto out;
10381 }
10382 drq->type = LPFC_DRQ;
10383 drq->subtype = subtype;
10384 drq->host_index = 0;
10385 drq->hba_index = 0;
10386
10387 /* link the header and data RQs onto the parent cq child list */
10388 list_add_tail(&hrq->list, &cq->child_list);
10389 list_add_tail(&drq->list, &cq->child_list);
10390
10391out:
James Smart8fa38512009-07-19 10:01:03 -040010392 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010393 return status;
10394}
10395
10396/**
10397 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10398 * @eq: The queue structure associated with the queue to destroy.
10399 *
10400 * This function destroys a queue, as detailed in @eq by sending an mailbox
10401 * command, specific to the type of queue, to the HBA.
10402 *
10403 * The @eq struct is used to get the queue ID of the queue to destroy.
10404 *
10405 * On success this function will return a zero. If the queue destroy mailbox
10406 * command fails this function will return ENXIO.
10407 **/
10408uint32_t
10409lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10410{
10411 LPFC_MBOXQ_t *mbox;
10412 int rc, length, status = 0;
10413 uint32_t shdr_status, shdr_add_status;
10414 union lpfc_sli4_cfg_shdr *shdr;
10415
10416 if (!eq)
10417 return -ENODEV;
10418 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10419 if (!mbox)
10420 return -ENOMEM;
10421 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10422 sizeof(struct lpfc_sli4_cfg_mhdr));
10423 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10424 LPFC_MBOX_OPCODE_EQ_DESTROY,
10425 length, LPFC_SLI4_MBX_EMBED);
10426 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10427 eq->queue_id);
10428 mbox->vport = eq->phba->pport;
10429 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10430
10431 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10432 /* The IOCTL status is embedded in the mailbox subheader. */
10433 shdr = (union lpfc_sli4_cfg_shdr *)
10434 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10435 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10436 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10437 if (shdr_status || shdr_add_status || rc) {
10438 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10439 "2505 EQ_DESTROY mailbox failed with "
10440 "status x%x add_status x%x, mbx status x%x\n",
10441 shdr_status, shdr_add_status, rc);
10442 status = -ENXIO;
10443 }
10444
10445 /* Remove eq from any list */
10446 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040010447 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010448 return status;
10449}
10450
10451/**
10452 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10453 * @cq: The queue structure associated with the queue to destroy.
10454 *
10455 * This function destroys a queue, as detailed in @cq by sending an mailbox
10456 * command, specific to the type of queue, to the HBA.
10457 *
10458 * The @cq struct is used to get the queue ID of the queue to destroy.
10459 *
10460 * On success this function will return a zero. If the queue destroy mailbox
10461 * command fails this function will return ENXIO.
10462 **/
10463uint32_t
10464lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10465{
10466 LPFC_MBOXQ_t *mbox;
10467 int rc, length, status = 0;
10468 uint32_t shdr_status, shdr_add_status;
10469 union lpfc_sli4_cfg_shdr *shdr;
10470
10471 if (!cq)
10472 return -ENODEV;
10473 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10474 if (!mbox)
10475 return -ENOMEM;
10476 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10477 sizeof(struct lpfc_sli4_cfg_mhdr));
10478 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10479 LPFC_MBOX_OPCODE_CQ_DESTROY,
10480 length, LPFC_SLI4_MBX_EMBED);
10481 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10482 cq->queue_id);
10483 mbox->vport = cq->phba->pport;
10484 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10485 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10486 /* The IOCTL status is embedded in the mailbox subheader. */
10487 shdr = (union lpfc_sli4_cfg_shdr *)
10488 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10489 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10490 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10491 if (shdr_status || shdr_add_status || rc) {
10492 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10493 "2506 CQ_DESTROY mailbox failed with "
10494 "status x%x add_status x%x, mbx status x%x\n",
10495 shdr_status, shdr_add_status, rc);
10496 status = -ENXIO;
10497 }
10498 /* Remove cq from any list */
10499 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040010500 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010501 return status;
10502}
10503
10504/**
James Smart04c68492009-05-22 14:52:52 -040010505 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10506 * @qm: The queue structure associated with the queue to destroy.
10507 *
10508 * This function destroys a queue, as detailed in @mq by sending an mailbox
10509 * command, specific to the type of queue, to the HBA.
10510 *
10511 * The @mq struct is used to get the queue ID of the queue to destroy.
10512 *
10513 * On success this function will return a zero. If the queue destroy mailbox
10514 * command fails this function will return ENXIO.
10515 **/
10516uint32_t
10517lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10518{
10519 LPFC_MBOXQ_t *mbox;
10520 int rc, length, status = 0;
10521 uint32_t shdr_status, shdr_add_status;
10522 union lpfc_sli4_cfg_shdr *shdr;
10523
10524 if (!mq)
10525 return -ENODEV;
10526 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10527 if (!mbox)
10528 return -ENOMEM;
10529 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10530 sizeof(struct lpfc_sli4_cfg_mhdr));
10531 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10532 LPFC_MBOX_OPCODE_MQ_DESTROY,
10533 length, LPFC_SLI4_MBX_EMBED);
10534 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10535 mq->queue_id);
10536 mbox->vport = mq->phba->pport;
10537 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10538 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10539 /* The IOCTL status is embedded in the mailbox subheader. */
10540 shdr = (union lpfc_sli4_cfg_shdr *)
10541 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10542 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10543 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10544 if (shdr_status || shdr_add_status || rc) {
10545 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10546 "2507 MQ_DESTROY mailbox failed with "
10547 "status x%x add_status x%x, mbx status x%x\n",
10548 shdr_status, shdr_add_status, rc);
10549 status = -ENXIO;
10550 }
10551 /* Remove mq from any list */
10552 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040010553 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040010554 return status;
10555}
10556
10557/**
James Smart4f774512009-05-22 14:52:35 -040010558 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10559 * @wq: The queue structure associated with the queue to destroy.
10560 *
10561 * This function destroys a queue, as detailed in @wq by sending an mailbox
10562 * command, specific to the type of queue, to the HBA.
10563 *
10564 * The @wq struct is used to get the queue ID of the queue to destroy.
10565 *
10566 * On success this function will return a zero. If the queue destroy mailbox
10567 * command fails this function will return ENXIO.
10568 **/
10569uint32_t
10570lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10571{
10572 LPFC_MBOXQ_t *mbox;
10573 int rc, length, status = 0;
10574 uint32_t shdr_status, shdr_add_status;
10575 union lpfc_sli4_cfg_shdr *shdr;
10576
10577 if (!wq)
10578 return -ENODEV;
10579 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10580 if (!mbox)
10581 return -ENOMEM;
10582 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10583 sizeof(struct lpfc_sli4_cfg_mhdr));
10584 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10585 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10586 length, LPFC_SLI4_MBX_EMBED);
10587 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10588 wq->queue_id);
10589 mbox->vport = wq->phba->pport;
10590 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10591 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10592 shdr = (union lpfc_sli4_cfg_shdr *)
10593 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10594 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10595 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10596 if (shdr_status || shdr_add_status || rc) {
10597 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10598 "2508 WQ_DESTROY mailbox failed with "
10599 "status x%x add_status x%x, mbx status x%x\n",
10600 shdr_status, shdr_add_status, rc);
10601 status = -ENXIO;
10602 }
10603 /* Remove wq from any list */
10604 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040010605 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010606 return status;
10607}
10608
10609/**
10610 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10611 * @rq: The queue structure associated with the queue to destroy.
10612 *
10613 * This function destroys a queue, as detailed in @rq by sending an mailbox
10614 * command, specific to the type of queue, to the HBA.
10615 *
10616 * The @rq struct is used to get the queue ID of the queue to destroy.
10617 *
10618 * On success this function will return a zero. If the queue destroy mailbox
10619 * command fails this function will return ENXIO.
10620 **/
10621uint32_t
10622lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10623 struct lpfc_queue *drq)
10624{
10625 LPFC_MBOXQ_t *mbox;
10626 int rc, length, status = 0;
10627 uint32_t shdr_status, shdr_add_status;
10628 union lpfc_sli4_cfg_shdr *shdr;
10629
10630 if (!hrq || !drq)
10631 return -ENODEV;
10632 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10633 if (!mbox)
10634 return -ENOMEM;
10635 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10636 sizeof(struct mbox_header));
10637 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10638 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10639 length, LPFC_SLI4_MBX_EMBED);
10640 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10641 hrq->queue_id);
10642 mbox->vport = hrq->phba->pport;
10643 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10644 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10645 /* The IOCTL status is embedded in the mailbox subheader. */
10646 shdr = (union lpfc_sli4_cfg_shdr *)
10647 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10648 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10649 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10650 if (shdr_status || shdr_add_status || rc) {
10651 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10652 "2509 RQ_DESTROY mailbox failed with "
10653 "status x%x add_status x%x, mbx status x%x\n",
10654 shdr_status, shdr_add_status, rc);
10655 if (rc != MBX_TIMEOUT)
10656 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10657 return -ENXIO;
10658 }
10659 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10660 drq->queue_id);
10661 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10662 shdr = (union lpfc_sli4_cfg_shdr *)
10663 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10664 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10665 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10666 if (shdr_status || shdr_add_status || rc) {
10667 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10668 "2510 RQ_DESTROY mailbox failed with "
10669 "status x%x add_status x%x, mbx status x%x\n",
10670 shdr_status, shdr_add_status, rc);
10671 status = -ENXIO;
10672 }
10673 list_del_init(&hrq->list);
10674 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040010675 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010676 return status;
10677}
10678
10679/**
10680 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10681 * @phba: The virtual port for which this call being executed.
10682 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10683 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10684 * @xritag: the xritag that ties this io to the SGL pages.
10685 *
10686 * This routine will post the sgl pages for the IO that has the xritag
10687 * that is in the iocbq structure. The xritag is assigned during iocbq
10688 * creation and persists for as long as the driver is loaded.
10689 * if the caller has fewer than 256 scatter gather segments to map then
10690 * pdma_phys_addr1 should be 0.
10691 * If the caller needs to map more than 256 scatter gather segment then
10692 * pdma_phys_addr1 should be a valid physical address.
10693 * physical address for SGLs must be 64 byte aligned.
10694 * If you are going to map 2 SGL's then the first one must have 256 entries
10695 * the second sgl can have between 1 and 256 entries.
10696 *
10697 * Return codes:
10698 * 0 - Success
10699 * -ENXIO, -ENOMEM - Failure
10700 **/
10701int
10702lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10703 dma_addr_t pdma_phys_addr0,
10704 dma_addr_t pdma_phys_addr1,
10705 uint16_t xritag)
10706{
10707 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10708 LPFC_MBOXQ_t *mbox;
10709 int rc;
10710 uint32_t shdr_status, shdr_add_status;
10711 union lpfc_sli4_cfg_shdr *shdr;
10712
10713 if (xritag == NO_XRI) {
10714 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10715 "0364 Invalid param:\n");
10716 return -EINVAL;
10717 }
10718
10719 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10720 if (!mbox)
10721 return -ENOMEM;
10722
10723 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10724 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10725 sizeof(struct lpfc_mbx_post_sgl_pages) -
10726 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10727
10728 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10729 &mbox->u.mqe.un.post_sgl_pages;
10730 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10731 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10732
10733 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10734 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10735 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10736 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10737
10738 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10739 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10740 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10741 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10742 if (!phba->sli4_hba.intr_enable)
10743 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10744 else
10745 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10746 /* The IOCTL status is embedded in the mailbox subheader. */
10747 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10748 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10749 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10750 if (rc != MBX_TIMEOUT)
10751 mempool_free(mbox, phba->mbox_mem_pool);
10752 if (shdr_status || shdr_add_status || rc) {
10753 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10754 "2511 POST_SGL mailbox failed with "
10755 "status x%x add_status x%x, mbx status x%x\n",
10756 shdr_status, shdr_add_status, rc);
10757 rc = -ENXIO;
10758 }
10759 return 0;
10760}
10761/**
10762 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10763 * @phba: The virtual port for which this call being executed.
10764 *
10765 * This routine will remove all of the sgl pages registered with the hba.
10766 *
10767 * Return codes:
10768 * 0 - Success
10769 * -ENXIO, -ENOMEM - Failure
10770 **/
10771int
10772lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10773{
10774 LPFC_MBOXQ_t *mbox;
10775 int rc;
10776 uint32_t shdr_status, shdr_add_status;
10777 union lpfc_sli4_cfg_shdr *shdr;
10778
10779 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10780 if (!mbox)
10781 return -ENOMEM;
10782
10783 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10784 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10785 LPFC_SLI4_MBX_EMBED);
10786 if (!phba->sli4_hba.intr_enable)
10787 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10788 else
10789 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10790 /* The IOCTL status is embedded in the mailbox subheader. */
10791 shdr = (union lpfc_sli4_cfg_shdr *)
10792 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10793 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10794 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10795 if (rc != MBX_TIMEOUT)
10796 mempool_free(mbox, phba->mbox_mem_pool);
10797 if (shdr_status || shdr_add_status || rc) {
10798 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10799 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10800 "status x%x add_status x%x, mbx status x%x\n",
10801 shdr_status, shdr_add_status, rc);
10802 rc = -ENXIO;
10803 }
10804 return rc;
10805}
10806
10807/**
10808 * lpfc_sli4_next_xritag - Get an xritag for the io
10809 * @phba: Pointer to HBA context object.
10810 *
10811 * This function gets an xritag for the iocb. If there is no unused xritag
10812 * it will return 0xffff.
10813 * The function returns the allocated xritag if successful, else returns zero.
10814 * Zero is not a valid xritag.
10815 * The caller is not required to hold any lock.
10816 **/
10817uint16_t
10818lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10819{
10820 uint16_t xritag;
10821
10822 spin_lock_irq(&phba->hbalock);
10823 xritag = phba->sli4_hba.next_xri;
10824 if ((xritag != (uint16_t) -1) && xritag <
10825 (phba->sli4_hba.max_cfg_param.max_xri
10826 + phba->sli4_hba.max_cfg_param.xri_base)) {
10827 phba->sli4_hba.next_xri++;
10828 phba->sli4_hba.max_cfg_param.xri_used++;
10829 spin_unlock_irq(&phba->hbalock);
10830 return xritag;
10831 }
10832 spin_unlock_irq(&phba->hbalock);
James Smart6a9c52c2009-10-02 15:16:51 -040010833 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smart4f774512009-05-22 14:52:35 -040010834 "2004 Failed to allocate XRI.last XRITAG is %d"
10835 " Max XRI is %d, Used XRI is %d\n",
10836 phba->sli4_hba.next_xri,
10837 phba->sli4_hba.max_cfg_param.max_xri,
10838 phba->sli4_hba.max_cfg_param.xri_used);
10839 return -1;
10840}
10841
10842/**
10843 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10844 * @phba: pointer to lpfc hba data structure.
10845 *
10846 * This routine is invoked to post a block of driver's sgl pages to the
10847 * HBA using non-embedded mailbox command. No Lock is held. This routine
10848 * is only called when the driver is loading and after all IO has been
10849 * stopped.
10850 **/
10851int
10852lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10853{
10854 struct lpfc_sglq *sglq_entry;
10855 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10856 struct sgl_page_pairs *sgl_pg_pairs;
10857 void *viraddr;
10858 LPFC_MBOXQ_t *mbox;
10859 uint32_t reqlen, alloclen, pg_pairs;
10860 uint32_t mbox_tmo;
10861 uint16_t xritag_start = 0;
10862 int els_xri_cnt, rc = 0;
10863 uint32_t shdr_status, shdr_add_status;
10864 union lpfc_sli4_cfg_shdr *shdr;
10865
10866 /* The number of sgls to be posted */
10867 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10868
10869 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10870 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040010871 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040010872 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10873 "2559 Block sgl registration required DMA "
10874 "size (%d) great than a page\n", reqlen);
10875 return -ENOMEM;
10876 }
10877 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10878 if (!mbox) {
10879 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10880 "2560 Failed to allocate mbox cmd memory\n");
10881 return -ENOMEM;
10882 }
10883
10884 /* Allocate DMA memory and set up the non-embedded mailbox command */
10885 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10886 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10887 LPFC_SLI4_MBX_NEMBED);
10888
10889 if (alloclen < reqlen) {
10890 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10891 "0285 Allocated DMA memory size (%d) is "
10892 "less than the requested DMA memory "
10893 "size (%d)\n", alloclen, reqlen);
10894 lpfc_sli4_mbox_cmd_free(phba, mbox);
10895 return -ENOMEM;
10896 }
James Smart4f774512009-05-22 14:52:35 -040010897 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040010898 viraddr = mbox->sge_array->addr[0];
10899
10900 /* Set up the SGL pages in the non-embedded DMA pages */
10901 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10902 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10903
10904 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10905 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10906 /* Set up the sge entry */
10907 sgl_pg_pairs->sgl_pg0_addr_lo =
10908 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10909 sgl_pg_pairs->sgl_pg0_addr_hi =
10910 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10911 sgl_pg_pairs->sgl_pg1_addr_lo =
10912 cpu_to_le32(putPaddrLow(0));
10913 sgl_pg_pairs->sgl_pg1_addr_hi =
10914 cpu_to_le32(putPaddrHigh(0));
10915 /* Keep the first xritag on the list */
10916 if (pg_pairs == 0)
10917 xritag_start = sglq_entry->sli4_xritag;
10918 sgl_pg_pairs++;
10919 }
10920 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
James Smart6a9c52c2009-10-02 15:16:51 -040010921 bf_set(lpfc_post_sgl_pages_xricnt, sgl, els_xri_cnt);
James Smart4f774512009-05-22 14:52:35 -040010922 /* Perform endian conversion if necessary */
10923 sgl->word0 = cpu_to_le32(sgl->word0);
10924
10925 if (!phba->sli4_hba.intr_enable)
10926 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10927 else {
10928 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10929 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10930 }
10931 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10932 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10933 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10934 if (rc != MBX_TIMEOUT)
10935 lpfc_sli4_mbox_cmd_free(phba, mbox);
10936 if (shdr_status || shdr_add_status || rc) {
10937 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10938 "2513 POST_SGL_BLOCK mailbox command failed "
10939 "status x%x add_status x%x mbx status x%x\n",
10940 shdr_status, shdr_add_status, rc);
10941 rc = -ENXIO;
10942 }
10943 return rc;
10944}
10945
10946/**
10947 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10948 * @phba: pointer to lpfc hba data structure.
10949 * @sblist: pointer to scsi buffer list.
10950 * @count: number of scsi buffers on the list.
10951 *
10952 * This routine is invoked to post a block of @count scsi sgl pages from a
10953 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10954 * No Lock is held.
10955 *
10956 **/
10957int
10958lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10959 int cnt)
10960{
10961 struct lpfc_scsi_buf *psb;
10962 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10963 struct sgl_page_pairs *sgl_pg_pairs;
10964 void *viraddr;
10965 LPFC_MBOXQ_t *mbox;
10966 uint32_t reqlen, alloclen, pg_pairs;
10967 uint32_t mbox_tmo;
10968 uint16_t xritag_start = 0;
10969 int rc = 0;
10970 uint32_t shdr_status, shdr_add_status;
10971 dma_addr_t pdma_phys_bpl1;
10972 union lpfc_sli4_cfg_shdr *shdr;
10973
10974 /* Calculate the requested length of the dma memory */
10975 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10976 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
James Smart49198b32010-04-06 15:04:33 -040010977 if (reqlen > SLI4_PAGE_SIZE) {
James Smart4f774512009-05-22 14:52:35 -040010978 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10979 "0217 Block sgl registration required DMA "
10980 "size (%d) great than a page\n", reqlen);
10981 return -ENOMEM;
10982 }
10983 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10984 if (!mbox) {
10985 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10986 "0283 Failed to allocate mbox cmd memory\n");
10987 return -ENOMEM;
10988 }
10989
10990 /* Allocate DMA memory and set up the non-embedded mailbox command */
10991 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10992 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10993 LPFC_SLI4_MBX_NEMBED);
10994
10995 if (alloclen < reqlen) {
10996 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10997 "2561 Allocated DMA memory size (%d) is "
10998 "less than the requested DMA memory "
10999 "size (%d)\n", alloclen, reqlen);
11000 lpfc_sli4_mbox_cmd_free(phba, mbox);
11001 return -ENOMEM;
11002 }
James Smart4f774512009-05-22 14:52:35 -040011003 /* Get the first SGE entry from the non-embedded DMA memory */
James Smart4f774512009-05-22 14:52:35 -040011004 viraddr = mbox->sge_array->addr[0];
11005
11006 /* Set up the SGL pages in the non-embedded DMA pages */
11007 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
11008 sgl_pg_pairs = &sgl->sgl_pg_pairs;
11009
11010 pg_pairs = 0;
11011 list_for_each_entry(psb, sblist, list) {
11012 /* Set up the sge entry */
11013 sgl_pg_pairs->sgl_pg0_addr_lo =
11014 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
11015 sgl_pg_pairs->sgl_pg0_addr_hi =
11016 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
11017 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
11018 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
11019 else
11020 pdma_phys_bpl1 = 0;
11021 sgl_pg_pairs->sgl_pg1_addr_lo =
11022 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
11023 sgl_pg_pairs->sgl_pg1_addr_hi =
11024 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
11025 /* Keep the first xritag on the list */
11026 if (pg_pairs == 0)
11027 xritag_start = psb->cur_iocbq.sli4_xritag;
11028 sgl_pg_pairs++;
11029 pg_pairs++;
11030 }
11031 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
11032 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
11033 /* Perform endian conversion if necessary */
11034 sgl->word0 = cpu_to_le32(sgl->word0);
11035
11036 if (!phba->sli4_hba.intr_enable)
11037 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
11038 else {
11039 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11040 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
11041 }
11042 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
11043 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11044 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11045 if (rc != MBX_TIMEOUT)
11046 lpfc_sli4_mbox_cmd_free(phba, mbox);
11047 if (shdr_status || shdr_add_status || rc) {
11048 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11049 "2564 POST_SGL_BLOCK mailbox command failed "
11050 "status x%x add_status x%x mbx status x%x\n",
11051 shdr_status, shdr_add_status, rc);
11052 rc = -ENXIO;
11053 }
11054 return rc;
11055}
11056
11057/**
11058 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11059 * @phba: pointer to lpfc_hba struct that the frame was received on
11060 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11061 *
11062 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11063 * valid type of frame that the LPFC driver will handle. This function will
11064 * return a zero if the frame is a valid frame or a non zero value when the
11065 * frame does not pass the check.
11066 **/
11067static int
11068lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
11069{
11070 char *rctl_names[] = FC_RCTL_NAMES_INIT;
11071 char *type_names[] = FC_TYPE_NAMES_INIT;
11072 struct fc_vft_header *fc_vft_hdr;
11073
11074 switch (fc_hdr->fh_r_ctl) {
11075 case FC_RCTL_DD_UNCAT: /* uncategorized information */
11076 case FC_RCTL_DD_SOL_DATA: /* solicited data */
11077 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
11078 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
11079 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
11080 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
11081 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
11082 case FC_RCTL_DD_CMD_STATUS: /* command status */
11083 case FC_RCTL_ELS_REQ: /* extended link services request */
11084 case FC_RCTL_ELS_REP: /* extended link services reply */
11085 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
11086 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
11087 case FC_RCTL_BA_NOP: /* basic link service NOP */
11088 case FC_RCTL_BA_ABTS: /* basic link service abort */
11089 case FC_RCTL_BA_RMC: /* remove connection */
11090 case FC_RCTL_BA_ACC: /* basic accept */
11091 case FC_RCTL_BA_RJT: /* basic reject */
11092 case FC_RCTL_BA_PRMT:
11093 case FC_RCTL_ACK_1: /* acknowledge_1 */
11094 case FC_RCTL_ACK_0: /* acknowledge_0 */
11095 case FC_RCTL_P_RJT: /* port reject */
11096 case FC_RCTL_F_RJT: /* fabric reject */
11097 case FC_RCTL_P_BSY: /* port busy */
11098 case FC_RCTL_F_BSY: /* fabric busy to data frame */
11099 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
11100 case FC_RCTL_LCR: /* link credit reset */
11101 case FC_RCTL_END: /* end */
11102 break;
11103 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
11104 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11105 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
11106 return lpfc_fc_frame_check(phba, fc_hdr);
11107 default:
11108 goto drop;
11109 }
11110 switch (fc_hdr->fh_type) {
11111 case FC_TYPE_BLS:
11112 case FC_TYPE_ELS:
11113 case FC_TYPE_FCP:
11114 case FC_TYPE_CT:
11115 break;
11116 case FC_TYPE_IP:
11117 case FC_TYPE_ILS:
11118 default:
11119 goto drop;
11120 }
11121 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11122 "2538 Received frame rctl:%s type:%s\n",
11123 rctl_names[fc_hdr->fh_r_ctl],
11124 type_names[fc_hdr->fh_type]);
11125 return 0;
11126drop:
11127 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11128 "2539 Dropped frame rctl:%s type:%s\n",
11129 rctl_names[fc_hdr->fh_r_ctl],
11130 type_names[fc_hdr->fh_type]);
11131 return 1;
11132}
11133
11134/**
11135 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11136 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11137 *
11138 * This function processes the FC header to retrieve the VFI from the VF
11139 * header, if one exists. This function will return the VFI if one exists
11140 * or 0 if no VSAN Header exists.
11141 **/
11142static uint32_t
11143lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
11144{
11145 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
11146
11147 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
11148 return 0;
11149 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
11150}
11151
11152/**
11153 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11154 * @phba: Pointer to the HBA structure to search for the vport on
11155 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11156 * @fcfi: The FC Fabric ID that the frame came from
11157 *
11158 * This function searches the @phba for a vport that matches the content of the
11159 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11160 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11161 * returns the matching vport pointer or NULL if unable to match frame to a
11162 * vport.
11163 **/
11164static struct lpfc_vport *
11165lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
11166 uint16_t fcfi)
11167{
11168 struct lpfc_vport **vports;
11169 struct lpfc_vport *vport = NULL;
11170 int i;
11171 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
11172 fc_hdr->fh_d_id[1] << 8 |
11173 fc_hdr->fh_d_id[2]);
11174
11175 vports = lpfc_create_vport_work_array(phba);
11176 if (vports != NULL)
11177 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
11178 if (phba->fcf.fcfi == fcfi &&
11179 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
11180 vports[i]->fc_myDID == did) {
11181 vport = vports[i];
11182 break;
11183 }
11184 }
11185 lpfc_destroy_vport_work_array(phba, vports);
11186 return vport;
11187}
11188
11189/**
James Smart45ed1192009-10-02 15:17:02 -040011190 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11191 * @vport: The vport to work on.
11192 *
11193 * This function updates the receive sequence time stamp for this vport. The
11194 * receive sequence time stamp indicates the time that the last frame of the
11195 * the sequence that has been idle for the longest amount of time was received.
11196 * the driver uses this time stamp to indicate if any received sequences have
11197 * timed out.
11198 **/
11199void
11200lpfc_update_rcv_time_stamp(struct lpfc_vport *vport)
11201{
11202 struct lpfc_dmabuf *h_buf;
11203 struct hbq_dmabuf *dmabuf = NULL;
11204
11205 /* get the oldest sequence on the rcv list */
11206 h_buf = list_get_first(&vport->rcv_buffer_list,
11207 struct lpfc_dmabuf, list);
11208 if (!h_buf)
11209 return;
11210 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11211 vport->rcv_buffer_time_stamp = dmabuf->time_stamp;
11212}
11213
11214/**
11215 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11216 * @vport: The vport that the received sequences were sent to.
11217 *
11218 * This function cleans up all outstanding received sequences. This is called
11219 * by the driver when a link event or user action invalidates all the received
11220 * sequences.
11221 **/
11222void
11223lpfc_cleanup_rcv_buffers(struct lpfc_vport *vport)
11224{
11225 struct lpfc_dmabuf *h_buf, *hnext;
11226 struct lpfc_dmabuf *d_buf, *dnext;
11227 struct hbq_dmabuf *dmabuf = NULL;
11228
11229 /* start with the oldest sequence on the rcv list */
11230 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11231 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11232 list_del_init(&dmabuf->hbuf.list);
11233 list_for_each_entry_safe(d_buf, dnext,
11234 &dmabuf->dbuf.list, list) {
11235 list_del_init(&d_buf->list);
11236 lpfc_in_buf_free(vport->phba, d_buf);
11237 }
11238 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11239 }
11240}
11241
11242/**
11243 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11244 * @vport: The vport that the received sequences were sent to.
11245 *
11246 * This function determines whether any received sequences have timed out by
11247 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11248 * indicates that there is at least one timed out sequence this routine will
11249 * go through the received sequences one at a time from most inactive to most
11250 * active to determine which ones need to be cleaned up. Once it has determined
11251 * that a sequence needs to be cleaned up it will simply free up the resources
11252 * without sending an abort.
11253 **/
11254void
11255lpfc_rcv_seq_check_edtov(struct lpfc_vport *vport)
11256{
11257 struct lpfc_dmabuf *h_buf, *hnext;
11258 struct lpfc_dmabuf *d_buf, *dnext;
11259 struct hbq_dmabuf *dmabuf = NULL;
11260 unsigned long timeout;
11261 int abort_count = 0;
11262
11263 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11264 vport->rcv_buffer_time_stamp);
11265 if (list_empty(&vport->rcv_buffer_list) ||
11266 time_before(jiffies, timeout))
11267 return;
11268 /* start with the oldest sequence on the rcv list */
11269 list_for_each_entry_safe(h_buf, hnext, &vport->rcv_buffer_list, list) {
11270 dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11271 timeout = (msecs_to_jiffies(vport->phba->fc_edtov) +
11272 dmabuf->time_stamp);
11273 if (time_before(jiffies, timeout))
11274 break;
11275 abort_count++;
11276 list_del_init(&dmabuf->hbuf.list);
11277 list_for_each_entry_safe(d_buf, dnext,
11278 &dmabuf->dbuf.list, list) {
11279 list_del_init(&d_buf->list);
11280 lpfc_in_buf_free(vport->phba, d_buf);
11281 }
11282 lpfc_in_buf_free(vport->phba, &dmabuf->dbuf);
11283 }
11284 if (abort_count)
11285 lpfc_update_rcv_time_stamp(vport);
11286}
11287
11288/**
James Smart4f774512009-05-22 14:52:35 -040011289 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11290 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11291 *
11292 * This function searches through the existing incomplete sequences that have
11293 * been sent to this @vport. If the frame matches one of the incomplete
11294 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11295 * make up that sequence. If no sequence is found that matches this frame then
11296 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11297 * This function returns a pointer to the first dmabuf in the sequence list that
11298 * the frame was linked to.
11299 **/
11300static struct hbq_dmabuf *
11301lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
11302{
11303 struct fc_frame_header *new_hdr;
11304 struct fc_frame_header *temp_hdr;
11305 struct lpfc_dmabuf *d_buf;
11306 struct lpfc_dmabuf *h_buf;
11307 struct hbq_dmabuf *seq_dmabuf = NULL;
11308 struct hbq_dmabuf *temp_dmabuf = NULL;
11309
James Smart4d9ab992009-10-02 15:16:39 -040011310 INIT_LIST_HEAD(&dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011311 dmabuf->time_stamp = jiffies;
James Smart4f774512009-05-22 14:52:35 -040011312 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11313 /* Use the hdr_buf to find the sequence that this frame belongs to */
11314 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11315 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11316 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11317 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11318 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11319 continue;
11320 /* found a pending sequence that matches this frame */
11321 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11322 break;
11323 }
11324 if (!seq_dmabuf) {
11325 /*
11326 * This indicates first frame received for this sequence.
11327 * Queue the buffer on the vport's rcv_buffer_list.
11328 */
11329 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
James Smart45ed1192009-10-02 15:17:02 -040011330 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011331 return dmabuf;
11332 }
11333 temp_hdr = seq_dmabuf->hbuf.virt;
James Smarteeead812009-12-21 17:01:23 -050011334 if (be16_to_cpu(new_hdr->fh_seq_cnt) <
11335 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4d9ab992009-10-02 15:16:39 -040011336 list_del_init(&seq_dmabuf->hbuf.list);
11337 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
11338 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011339 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011340 return dmabuf;
11341 }
James Smart45ed1192009-10-02 15:17:02 -040011342 /* move this sequence to the tail to indicate a young sequence */
11343 list_move_tail(&seq_dmabuf->hbuf.list, &vport->rcv_buffer_list);
11344 seq_dmabuf->time_stamp = jiffies;
11345 lpfc_update_rcv_time_stamp(vport);
James Smarteeead812009-12-21 17:01:23 -050011346 if (list_empty(&seq_dmabuf->dbuf.list)) {
11347 temp_hdr = dmabuf->hbuf.virt;
11348 list_add_tail(&dmabuf->dbuf.list, &seq_dmabuf->dbuf.list);
11349 return seq_dmabuf;
11350 }
James Smart4f774512009-05-22 14:52:35 -040011351 /* find the correct place in the sequence to insert this frame */
11352 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
11353 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11354 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
11355 /*
11356 * If the frame's sequence count is greater than the frame on
11357 * the list then insert the frame right after this frame
11358 */
James Smarteeead812009-12-21 17:01:23 -050011359 if (be16_to_cpu(new_hdr->fh_seq_cnt) >
11360 be16_to_cpu(temp_hdr->fh_seq_cnt)) {
James Smart4f774512009-05-22 14:52:35 -040011361 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
11362 return seq_dmabuf;
11363 }
11364 }
11365 return NULL;
11366}
11367
11368/**
James Smart6669f9b2009-10-02 15:16:45 -040011369 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11370 * @vport: pointer to a vitural port
11371 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11372 *
11373 * This function tries to abort from the partially assembed sequence, described
11374 * by the information from basic abbort @dmabuf. It checks to see whether such
11375 * partially assembled sequence held by the driver. If so, it shall free up all
11376 * the frames from the partially assembled sequence.
11377 *
11378 * Return
11379 * true -- if there is matching partially assembled sequence present and all
11380 * the frames freed with the sequence;
11381 * false -- if there is no matching partially assembled sequence present so
11382 * nothing got aborted in the lower layer driver
11383 **/
11384static bool
11385lpfc_sli4_abort_partial_seq(struct lpfc_vport *vport,
11386 struct hbq_dmabuf *dmabuf)
11387{
11388 struct fc_frame_header *new_hdr;
11389 struct fc_frame_header *temp_hdr;
11390 struct lpfc_dmabuf *d_buf, *n_buf, *h_buf;
11391 struct hbq_dmabuf *seq_dmabuf = NULL;
11392
11393 /* Use the hdr_buf to find the sequence that matches this frame */
11394 INIT_LIST_HEAD(&dmabuf->dbuf.list);
11395 INIT_LIST_HEAD(&dmabuf->hbuf.list);
11396 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11397 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
11398 temp_hdr = (struct fc_frame_header *)h_buf->virt;
11399 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
11400 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
11401 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
11402 continue;
11403 /* found a pending sequence that matches this frame */
11404 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
11405 break;
11406 }
11407
11408 /* Free up all the frames from the partially assembled sequence */
11409 if (seq_dmabuf) {
11410 list_for_each_entry_safe(d_buf, n_buf,
11411 &seq_dmabuf->dbuf.list, list) {
11412 list_del_init(&d_buf->list);
11413 lpfc_in_buf_free(vport->phba, d_buf);
11414 }
11415 return true;
11416 }
11417 return false;
11418}
11419
11420/**
11421 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11422 * @phba: Pointer to HBA context object.
11423 * @cmd_iocbq: pointer to the command iocbq structure.
11424 * @rsp_iocbq: pointer to the response iocbq structure.
11425 *
11426 * This function handles the sequence abort accept iocb command complete
11427 * event. It properly releases the memory allocated to the sequence abort
11428 * accept iocb.
11429 **/
11430static void
11431lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba *phba,
11432 struct lpfc_iocbq *cmd_iocbq,
11433 struct lpfc_iocbq *rsp_iocbq)
11434{
11435 if (cmd_iocbq)
11436 lpfc_sli_release_iocbq(phba, cmd_iocbq);
11437}
11438
11439/**
11440 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11441 * @phba: Pointer to HBA context object.
11442 * @fc_hdr: pointer to a FC frame header.
11443 *
11444 * This function sends a basic accept to a previous unsol sequence abort
11445 * event after aborting the sequence handling.
11446 **/
11447static void
11448lpfc_sli4_seq_abort_acc(struct lpfc_hba *phba,
11449 struct fc_frame_header *fc_hdr)
11450{
11451 struct lpfc_iocbq *ctiocb = NULL;
11452 struct lpfc_nodelist *ndlp;
James Smart5ffc2662009-11-18 15:39:44 -050011453 uint16_t oxid, rxid;
11454 uint32_t sid, fctl;
James Smart6669f9b2009-10-02 15:16:45 -040011455 IOCB_t *icmd;
11456
11457 if (!lpfc_is_link_up(phba))
11458 return;
11459
11460 sid = sli4_sid_from_fc_hdr(fc_hdr);
11461 oxid = be16_to_cpu(fc_hdr->fh_ox_id);
James Smart5ffc2662009-11-18 15:39:44 -050011462 rxid = be16_to_cpu(fc_hdr->fh_rx_id);
James Smart6669f9b2009-10-02 15:16:45 -040011463
11464 ndlp = lpfc_findnode_did(phba->pport, sid);
11465 if (!ndlp) {
11466 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
11467 "1268 Find ndlp returned NULL for oxid:x%x "
11468 "SID:x%x\n", oxid, sid);
11469 return;
11470 }
11471
11472 /* Allocate buffer for acc iocb */
11473 ctiocb = lpfc_sli_get_iocbq(phba);
11474 if (!ctiocb)
11475 return;
11476
James Smart5ffc2662009-11-18 15:39:44 -050011477 /* Extract the F_CTL field from FC_HDR */
11478 fctl = sli4_fctl_from_fc_hdr(fc_hdr);
11479
James Smart6669f9b2009-10-02 15:16:45 -040011480 icmd = &ctiocb->iocb;
James Smart6669f9b2009-10-02 15:16:45 -040011481 icmd->un.xseq64.bdl.bdeSize = 0;
James Smart5ffc2662009-11-18 15:39:44 -050011482 icmd->un.xseq64.bdl.ulpIoTag32 = 0;
James Smart6669f9b2009-10-02 15:16:45 -040011483 icmd->un.xseq64.w5.hcsw.Dfctl = 0;
11484 icmd->un.xseq64.w5.hcsw.Rctl = FC_RCTL_BA_ACC;
11485 icmd->un.xseq64.w5.hcsw.Type = FC_TYPE_BLS;
11486
11487 /* Fill in the rest of iocb fields */
11488 icmd->ulpCommand = CMD_XMIT_BLS_RSP64_CX;
11489 icmd->ulpBdeCount = 0;
11490 icmd->ulpLe = 1;
11491 icmd->ulpClass = CLASS3;
11492 icmd->ulpContext = ndlp->nlp_rpi;
James Smart6669f9b2009-10-02 15:16:45 -040011493
James Smart6669f9b2009-10-02 15:16:45 -040011494 ctiocb->iocb_cmpl = NULL;
11495 ctiocb->vport = phba->pport;
11496 ctiocb->iocb_cmpl = lpfc_sli4_seq_abort_acc_cmpl;
11497
James Smart5ffc2662009-11-18 15:39:44 -050011498 if (fctl & FC_FC_EX_CTX) {
11499 /* ABTS sent by responder to CT exchange, construction
11500 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11501 * field and RX_ID from ABTS for RX_ID field.
11502 */
11503 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_RSP);
11504 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, rxid);
11505 ctiocb->sli4_xritag = oxid;
11506 } else {
11507 /* ABTS sent by initiator to CT exchange, construction
11508 * of BA_ACC will need to allocate a new XRI as for the
11509 * XRI_TAG and RX_ID fields.
11510 */
11511 bf_set(lpfc_abts_orig, &icmd->un.bls_acc, LPFC_ABTS_UNSOL_INT);
11512 bf_set(lpfc_abts_rxid, &icmd->un.bls_acc, NO_XRI);
11513 ctiocb->sli4_xritag = NO_XRI;
11514 }
11515 bf_set(lpfc_abts_oxid, &icmd->un.bls_acc, oxid);
11516
James Smart6669f9b2009-10-02 15:16:45 -040011517 /* Xmit CT abts accept on exchange <xid> */
11518 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
11519 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11520 CMD_XMIT_BLS_RSP64_CX, phba->link_state);
11521 lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, ctiocb, 0);
11522}
11523
11524/**
11525 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11526 * @vport: Pointer to the vport on which this sequence was received
11527 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11528 *
11529 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11530 * receive sequence is only partially assembed by the driver, it shall abort
11531 * the partially assembled frames for the sequence. Otherwise, if the
11532 * unsolicited receive sequence has been completely assembled and passed to
11533 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11534 * unsolicited sequence has been aborted. After that, it will issue a basic
11535 * accept to accept the abort.
11536 **/
11537void
11538lpfc_sli4_handle_unsol_abort(struct lpfc_vport *vport,
11539 struct hbq_dmabuf *dmabuf)
11540{
11541 struct lpfc_hba *phba = vport->phba;
11542 struct fc_frame_header fc_hdr;
James Smart5ffc2662009-11-18 15:39:44 -050011543 uint32_t fctl;
James Smart6669f9b2009-10-02 15:16:45 -040011544 bool abts_par;
11545
James Smart6669f9b2009-10-02 15:16:45 -040011546 /* Make a copy of fc_hdr before the dmabuf being released */
11547 memcpy(&fc_hdr, dmabuf->hbuf.virt, sizeof(struct fc_frame_header));
James Smart5ffc2662009-11-18 15:39:44 -050011548 fctl = sli4_fctl_from_fc_hdr(&fc_hdr);
James Smart6669f9b2009-10-02 15:16:45 -040011549
James Smart5ffc2662009-11-18 15:39:44 -050011550 if (fctl & FC_FC_EX_CTX) {
11551 /*
11552 * ABTS sent by responder to exchange, just free the buffer
11553 */
James Smart6669f9b2009-10-02 15:16:45 -040011554 lpfc_in_buf_free(phba, &dmabuf->dbuf);
James Smart5ffc2662009-11-18 15:39:44 -050011555 } else {
11556 /*
11557 * ABTS sent by initiator to exchange, need to do cleanup
11558 */
11559 /* Try to abort partially assembled seq */
11560 abts_par = lpfc_sli4_abort_partial_seq(vport, dmabuf);
11561
11562 /* Send abort to ULP if partially seq abort failed */
11563 if (abts_par == false)
11564 lpfc_sli4_send_seq_to_ulp(vport, dmabuf);
11565 else
11566 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11567 }
James Smart6669f9b2009-10-02 15:16:45 -040011568 /* Send basic accept (BA_ACC) to the abort requester */
11569 lpfc_sli4_seq_abort_acc(phba, &fc_hdr);
11570}
11571
11572/**
James Smart4f774512009-05-22 14:52:35 -040011573 * lpfc_seq_complete - Indicates if a sequence is complete
11574 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11575 *
11576 * This function checks the sequence, starting with the frame described by
11577 * @dmabuf, to see if all the frames associated with this sequence are present.
11578 * the frames associated with this sequence are linked to the @dmabuf using the
11579 * dbuf list. This function looks for two major things. 1) That the first frame
11580 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11581 * set. 3) That there are no holes in the sequence count. The function will
11582 * return 1 when the sequence is complete, otherwise it will return 0.
11583 **/
11584static int
11585lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
11586{
11587 struct fc_frame_header *hdr;
11588 struct lpfc_dmabuf *d_buf;
11589 struct hbq_dmabuf *seq_dmabuf;
11590 uint32_t fctl;
11591 int seq_count = 0;
11592
11593 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11594 /* make sure first fame of sequence has a sequence count of zero */
11595 if (hdr->fh_seq_cnt != seq_count)
11596 return 0;
11597 fctl = (hdr->fh_f_ctl[0] << 16 |
11598 hdr->fh_f_ctl[1] << 8 |
11599 hdr->fh_f_ctl[2]);
11600 /* If last frame of sequence we can return success. */
11601 if (fctl & FC_FC_END_SEQ)
11602 return 1;
11603 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
11604 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
11605 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11606 /* If there is a hole in the sequence count then fail. */
James Smarteeead812009-12-21 17:01:23 -050011607 if (++seq_count != be16_to_cpu(hdr->fh_seq_cnt))
James Smart4f774512009-05-22 14:52:35 -040011608 return 0;
11609 fctl = (hdr->fh_f_ctl[0] << 16 |
11610 hdr->fh_f_ctl[1] << 8 |
11611 hdr->fh_f_ctl[2]);
11612 /* If last frame of sequence we can return success. */
11613 if (fctl & FC_FC_END_SEQ)
11614 return 1;
11615 }
11616 return 0;
11617}
11618
11619/**
11620 * lpfc_prep_seq - Prep sequence for ULP processing
11621 * @vport: Pointer to the vport on which this sequence was received
11622 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11623 *
11624 * This function takes a sequence, described by a list of frames, and creates
11625 * a list of iocbq structures to describe the sequence. This iocbq list will be
11626 * used to issue to the generic unsolicited sequence handler. This routine
11627 * returns a pointer to the first iocbq in the list. If the function is unable
11628 * to allocate an iocbq then it throw out the received frames that were not
11629 * able to be described and return a pointer to the first iocbq. If unable to
11630 * allocate any iocbqs (including the first) this function will return NULL.
11631 **/
11632static struct lpfc_iocbq *
11633lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
11634{
11635 struct lpfc_dmabuf *d_buf, *n_buf;
11636 struct lpfc_iocbq *first_iocbq, *iocbq;
11637 struct fc_frame_header *fc_hdr;
11638 uint32_t sid;
James Smarteeead812009-12-21 17:01:23 -050011639 struct ulp_bde64 *pbde;
James Smart4f774512009-05-22 14:52:35 -040011640
11641 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11642 /* remove from receive buffer list */
11643 list_del_init(&seq_dmabuf->hbuf.list);
James Smart45ed1192009-10-02 15:17:02 -040011644 lpfc_update_rcv_time_stamp(vport);
James Smart4f774512009-05-22 14:52:35 -040011645 /* get the Remote Port's SID */
James Smart6669f9b2009-10-02 15:16:45 -040011646 sid = sli4_sid_from_fc_hdr(fc_hdr);
James Smart4f774512009-05-22 14:52:35 -040011647 /* Get an iocbq struct to fill in. */
11648 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
11649 if (first_iocbq) {
11650 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040011651 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040011652 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
11653 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
11654 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
11655 first_iocbq->iocb.unsli3.rcvsli3.vpi =
11656 vport->vpi + vport->phba->vpi_base;
11657 /* put the first buffer into the first IOCBq */
11658 first_iocbq->context2 = &seq_dmabuf->dbuf;
11659 first_iocbq->context3 = NULL;
11660 first_iocbq->iocb.ulpBdeCount = 1;
11661 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11662 LPFC_DATA_BUF_SIZE;
11663 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart8fa38512009-07-19 10:01:03 -040011664 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011665 bf_get(lpfc_rcqe_length,
11666 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011667 }
11668 iocbq = first_iocbq;
11669 /*
11670 * Each IOCBq can have two Buffers assigned, so go through the list
11671 * of buffers for this sequence and save two buffers in each IOCBq
11672 */
11673 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
11674 if (!iocbq) {
11675 lpfc_in_buf_free(vport->phba, d_buf);
11676 continue;
11677 }
11678 if (!iocbq->context3) {
11679 iocbq->context3 = d_buf;
11680 iocbq->iocb.ulpBdeCount++;
James Smarteeead812009-12-21 17:01:23 -050011681 pbde = (struct ulp_bde64 *)
11682 &iocbq->iocb.unsli3.sli3Words[4];
11683 pbde->tus.f.bdeSize = LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040011684 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011685 bf_get(lpfc_rcqe_length,
11686 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011687 } else {
11688 iocbq = lpfc_sli_get_iocbq(vport->phba);
11689 if (!iocbq) {
11690 if (first_iocbq) {
11691 first_iocbq->iocb.ulpStatus =
11692 IOSTAT_FCP_RSP_ERROR;
11693 first_iocbq->iocb.un.ulpWord[4] =
11694 IOERR_NO_RESOURCES;
11695 }
11696 lpfc_in_buf_free(vport->phba, d_buf);
11697 continue;
11698 }
11699 iocbq->context2 = d_buf;
11700 iocbq->context3 = NULL;
11701 iocbq->iocb.ulpBdeCount = 1;
11702 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
11703 LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040011704 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
James Smart4d9ab992009-10-02 15:16:39 -040011705 bf_get(lpfc_rcqe_length,
11706 &seq_dmabuf->cq_event.cqe.rcqe_cmpl);
James Smart4f774512009-05-22 14:52:35 -040011707 iocbq->iocb.un.rcvels.remoteID = sid;
11708 list_add_tail(&iocbq->list, &first_iocbq->list);
11709 }
11710 }
11711 return first_iocbq;
11712}
11713
James Smart6669f9b2009-10-02 15:16:45 -040011714static void
11715lpfc_sli4_send_seq_to_ulp(struct lpfc_vport *vport,
11716 struct hbq_dmabuf *seq_dmabuf)
11717{
11718 struct fc_frame_header *fc_hdr;
11719 struct lpfc_iocbq *iocbq, *curr_iocb, *next_iocb;
11720 struct lpfc_hba *phba = vport->phba;
11721
11722 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11723 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11724 if (!iocbq) {
11725 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11726 "2707 Ring %d handler: Failed to allocate "
11727 "iocb Rctl x%x Type x%x received\n",
11728 LPFC_ELS_RING,
11729 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11730 return;
11731 }
11732 if (!lpfc_complete_unsol_iocb(phba,
11733 &phba->sli.ring[LPFC_ELS_RING],
11734 iocbq, fc_hdr->fh_r_ctl,
11735 fc_hdr->fh_type))
11736 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11737 "2540 Ring %d handler: unexpected Rctl "
11738 "x%x Type x%x received\n",
11739 LPFC_ELS_RING,
11740 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11741
11742 /* Free iocb created in lpfc_prep_seq */
11743 list_for_each_entry_safe(curr_iocb, next_iocb,
11744 &iocbq->list, list) {
11745 list_del_init(&curr_iocb->list);
11746 lpfc_sli_release_iocbq(phba, curr_iocb);
11747 }
11748 lpfc_sli_release_iocbq(phba, iocbq);
11749}
11750
James Smart4f774512009-05-22 14:52:35 -040011751/**
11752 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11753 * @phba: Pointer to HBA context object.
11754 *
11755 * This function is called with no lock held. This function processes all
11756 * the received buffers and gives it to upper layers when a received buffer
11757 * indicates that it is the final frame in the sequence. The interrupt
11758 * service routine processes received buffers at interrupt contexts and adds
11759 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11760 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11761 * appropriate receive function when the final frame in a sequence is received.
11762 **/
James Smart4d9ab992009-10-02 15:16:39 -040011763void
11764lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba,
11765 struct hbq_dmabuf *dmabuf)
James Smart4f774512009-05-22 14:52:35 -040011766{
James Smart4d9ab992009-10-02 15:16:39 -040011767 struct hbq_dmabuf *seq_dmabuf;
James Smart4f774512009-05-22 14:52:35 -040011768 struct fc_frame_header *fc_hdr;
11769 struct lpfc_vport *vport;
11770 uint32_t fcfi;
James Smart4f774512009-05-22 14:52:35 -040011771
James Smart4f774512009-05-22 14:52:35 -040011772 /* Process each received buffer */
James Smart4d9ab992009-10-02 15:16:39 -040011773 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11774 /* check to see if this a valid type of frame */
11775 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11776 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11777 return;
11778 }
11779 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->cq_event.cqe.rcqe_cmpl);
11780 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
James Smartc8685952009-11-18 15:39:16 -050011781 if (!vport || !(vport->vpi_state & LPFC_VPI_REGISTERED)) {
James Smart4d9ab992009-10-02 15:16:39 -040011782 /* throw out the frame */
11783 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11784 return;
11785 }
James Smart6669f9b2009-10-02 15:16:45 -040011786 /* Handle the basic abort sequence (BA_ABTS) event */
11787 if (fc_hdr->fh_r_ctl == FC_RCTL_BA_ABTS) {
11788 lpfc_sli4_handle_unsol_abort(vport, dmabuf);
11789 return;
11790 }
11791
James Smart4d9ab992009-10-02 15:16:39 -040011792 /* Link this frame */
11793 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11794 if (!seq_dmabuf) {
11795 /* unable to add frame to vport - throw it out */
11796 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11797 return;
11798 }
11799 /* If not last frame in sequence continue processing frames. */
James Smartdef9c7a2009-12-21 17:02:28 -050011800 if (!lpfc_seq_complete(seq_dmabuf))
James Smart4d9ab992009-10-02 15:16:39 -040011801 return;
James Smartdef9c7a2009-12-21 17:02:28 -050011802
James Smart6669f9b2009-10-02 15:16:45 -040011803 /* Send the complete sequence to the upper layer protocol */
11804 lpfc_sli4_send_seq_to_ulp(vport, seq_dmabuf);
James Smart4f774512009-05-22 14:52:35 -040011805}
James Smart6fb120a2009-05-22 14:52:59 -040011806
11807/**
11808 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11809 * @phba: pointer to lpfc hba data structure.
11810 *
11811 * This routine is invoked to post rpi header templates to the
11812 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040011813 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11814 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040011815 *
11816 * This routine does not require any locks. It's usage is expected
11817 * to be driver load or reset recovery when the driver is
11818 * sequential.
11819 *
11820 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011821 * 0 - successful
James Smart6fb120a2009-05-22 14:52:59 -040011822 * EIO - The mailbox failed to complete successfully.
11823 * When this error occurs, the driver is not guaranteed
11824 * to have any rpi regions posted to the device and
11825 * must either attempt to repost the regions or take a
11826 * fatal error.
11827 **/
11828int
11829lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11830{
11831 struct lpfc_rpi_hdr *rpi_page;
11832 uint32_t rc = 0;
11833
11834 /* Post all rpi memory regions to the port. */
11835 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11836 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11837 if (rc != MBX_SUCCESS) {
11838 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11839 "2008 Error %d posting all rpi "
11840 "headers\n", rc);
11841 rc = -EIO;
11842 break;
11843 }
11844 }
11845
11846 return rc;
11847}
11848
11849/**
11850 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11851 * @phba: pointer to lpfc hba data structure.
11852 * @rpi_page: pointer to the rpi memory region.
11853 *
11854 * This routine is invoked to post a single rpi header to the
11855 * HBA consistent with the SLI-4 interface spec. This memory region
11856 * maps up to 64 rpi context regions.
11857 *
11858 * Return codes
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011859 * 0 - successful
James Smart6fb120a2009-05-22 14:52:59 -040011860 * ENOMEM - No available memory
11861 * EIO - The mailbox failed to complete successfully.
11862 **/
11863int
11864lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11865{
11866 LPFC_MBOXQ_t *mboxq;
11867 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11868 uint32_t rc = 0;
11869 uint32_t mbox_tmo;
11870 uint32_t shdr_status, shdr_add_status;
11871 union lpfc_sli4_cfg_shdr *shdr;
11872
11873 /* The port is notified of the header region via a mailbox command. */
11874 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11875 if (!mboxq) {
11876 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11877 "2001 Unable to allocate memory for issuing "
11878 "SLI_CONFIG_SPECIAL mailbox command\n");
11879 return -ENOMEM;
11880 }
11881
11882 /* Post all rpi memory regions to the port. */
11883 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11884 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11885 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11886 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11887 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11888 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11889 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11890 hdr_tmpl, rpi_page->page_count);
11891 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11892 rpi_page->start_rpi);
11893 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11894 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040011895 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040011896 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11897 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11898 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11899 if (rc != MBX_TIMEOUT)
11900 mempool_free(mboxq, phba->mbox_mem_pool);
11901 if (shdr_status || shdr_add_status || rc) {
11902 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11903 "2514 POST_RPI_HDR mailbox failed with "
11904 "status x%x add_status x%x, mbx status x%x\n",
11905 shdr_status, shdr_add_status, rc);
11906 rc = -ENXIO;
11907 }
11908 return rc;
11909}
11910
11911/**
11912 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11913 * @phba: pointer to lpfc hba data structure.
11914 *
11915 * This routine is invoked to post rpi header templates to the
11916 * HBA consistent with the SLI-4 interface spec. This routine
James Smart49198b32010-04-06 15:04:33 -040011917 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11918 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
James Smart6fb120a2009-05-22 14:52:59 -040011919 *
11920 * Returns
André Goddard Rosaaf901ca2009-11-14 13:09:05 -020011921 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
James Smart6fb120a2009-05-22 14:52:59 -040011922 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11923 **/
11924int
11925lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11926{
11927 int rpi;
11928 uint16_t max_rpi, rpi_base, rpi_limit;
11929 uint16_t rpi_remaining;
11930 struct lpfc_rpi_hdr *rpi_hdr;
11931
11932 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11933 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11934 rpi_limit = phba->sli4_hba.next_rpi;
11935
11936 /*
11937 * The valid rpi range is not guaranteed to be zero-based. Start
11938 * the search at the rpi_base as reported by the port.
11939 */
11940 spin_lock_irq(&phba->hbalock);
11941 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11942 if (rpi >= rpi_limit || rpi < rpi_base)
11943 rpi = LPFC_RPI_ALLOC_ERROR;
11944 else {
11945 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11946 phba->sli4_hba.max_cfg_param.rpi_used++;
11947 phba->sli4_hba.rpi_count++;
11948 }
11949
11950 /*
11951 * Don't try to allocate more rpi header regions if the device limit
11952 * on available rpis max has been exhausted.
11953 */
11954 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11955 (phba->sli4_hba.rpi_count >= max_rpi)) {
11956 spin_unlock_irq(&phba->hbalock);
11957 return rpi;
11958 }
11959
11960 /*
11961 * If the driver is running low on rpi resources, allocate another
11962 * page now. Note that the next_rpi value is used because
11963 * it represents how many are actually in use whereas max_rpi notes
11964 * how many are supported max by the device.
11965 */
11966 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11967 phba->sli4_hba.rpi_count;
11968 spin_unlock_irq(&phba->hbalock);
11969 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11970 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11971 if (!rpi_hdr) {
11972 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11973 "2002 Error Could not grow rpi "
11974 "count\n");
11975 } else {
11976 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11977 }
11978 }
11979
11980 return rpi;
11981}
11982
11983/**
11984 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11985 * @phba: pointer to lpfc hba data structure.
11986 *
11987 * This routine is invoked to release an rpi to the pool of
11988 * available rpis maintained by the driver.
11989 **/
11990void
James Smartd7c47992010-06-08 18:31:54 -040011991__lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11992{
11993 if (test_and_clear_bit(rpi, phba->sli4_hba.rpi_bmask)) {
11994 phba->sli4_hba.rpi_count--;
11995 phba->sli4_hba.max_cfg_param.rpi_used--;
11996 }
11997}
11998
11999/**
12000 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12001 * @phba: pointer to lpfc hba data structure.
12002 *
12003 * This routine is invoked to release an rpi to the pool of
12004 * available rpis maintained by the driver.
12005 **/
12006void
James Smart6fb120a2009-05-22 14:52:59 -040012007lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
12008{
12009 spin_lock_irq(&phba->hbalock);
James Smartd7c47992010-06-08 18:31:54 -040012010 __lpfc_sli4_free_rpi(phba, rpi);
James Smart6fb120a2009-05-22 14:52:59 -040012011 spin_unlock_irq(&phba->hbalock);
12012}
12013
12014/**
12015 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
12016 * @phba: pointer to lpfc hba data structure.
12017 *
12018 * This routine is invoked to remove the memory region that
12019 * provided rpi via a bitmask.
12020 **/
12021void
12022lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
12023{
12024 kfree(phba->sli4_hba.rpi_bmask);
12025}
12026
12027/**
12028 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12029 * @phba: pointer to lpfc hba data structure.
12030 *
12031 * This routine is invoked to remove the memory region that
12032 * provided rpi via a bitmask.
12033 **/
12034int
12035lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
12036{
12037 LPFC_MBOXQ_t *mboxq;
12038 struct lpfc_hba *phba = ndlp->phba;
12039 int rc;
12040
12041 /* The port is notified of the header region via a mailbox command. */
12042 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12043 if (!mboxq)
12044 return -ENOMEM;
12045
12046 /* Post all rpi memory regions to the port. */
12047 lpfc_resume_rpi(mboxq, ndlp);
12048 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12049 if (rc == MBX_NOT_FINISHED) {
12050 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12051 "2010 Resume RPI Mailbox failed "
12052 "status %d, mbxStatus x%x\n", rc,
12053 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
12054 mempool_free(mboxq, phba->mbox_mem_pool);
12055 return -EIO;
12056 }
12057 return 0;
12058}
12059
12060/**
12061 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12062 * @phba: pointer to lpfc hba data structure.
12063 * @vpi: vpi value to activate with the port.
12064 *
12065 * This routine is invoked to activate a vpi with the
12066 * port when the host intends to use vports with a
12067 * nonzero vpi.
12068 *
12069 * Returns:
12070 * 0 success
12071 * -Evalue otherwise
12072 **/
12073int
12074lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
12075{
12076 LPFC_MBOXQ_t *mboxq;
12077 int rc = 0;
James Smart6a9c52c2009-10-02 15:16:51 -040012078 int retval = MBX_SUCCESS;
James Smart6fb120a2009-05-22 14:52:59 -040012079 uint32_t mbox_tmo;
12080
12081 if (vpi == 0)
12082 return -EINVAL;
12083 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12084 if (!mboxq)
12085 return -ENOMEM;
James Smart1c6834a2009-07-19 10:01:26 -040012086 lpfc_init_vpi(phba, mboxq, vpi);
James Smart6fb120a2009-05-22 14:52:59 -040012087 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
12088 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
James Smart6fb120a2009-05-22 14:52:59 -040012089 if (rc != MBX_SUCCESS) {
12090 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12091 "2022 INIT VPI Mailbox failed "
12092 "status %d, mbxStatus x%x\n", rc,
12093 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
James Smart6a9c52c2009-10-02 15:16:51 -040012094 retval = -EIO;
James Smart6fb120a2009-05-22 14:52:59 -040012095 }
James Smart6a9c52c2009-10-02 15:16:51 -040012096 if (rc != MBX_TIMEOUT)
12097 mempool_free(mboxq, phba->mbox_mem_pool);
12098
12099 return retval;
James Smart6fb120a2009-05-22 14:52:59 -040012100}
12101
12102/**
12103 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12104 * @phba: pointer to lpfc hba data structure.
12105 * @mboxq: Pointer to mailbox object.
12106 *
12107 * This routine is invoked to manually add a single FCF record. The caller
12108 * must pass a completely initialized FCF_Record. This routine takes
12109 * care of the nonembedded mailbox operations.
12110 **/
12111static void
12112lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
12113{
12114 void *virt_addr;
12115 union lpfc_sli4_cfg_shdr *shdr;
12116 uint32_t shdr_status, shdr_add_status;
12117
12118 virt_addr = mboxq->sge_array->addr[0];
12119 /* The IOCTL status is embedded in the mailbox subheader. */
12120 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
12121 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
12122 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
12123
12124 if ((shdr_status || shdr_add_status) &&
12125 (shdr_status != STATUS_FCF_IN_USE))
12126 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12127 "2558 ADD_FCF_RECORD mailbox failed with "
12128 "status x%x add_status x%x\n",
12129 shdr_status, shdr_add_status);
12130
12131 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12132}
12133
12134/**
12135 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12136 * @phba: pointer to lpfc hba data structure.
12137 * @fcf_record: pointer to the initialized fcf record to add.
12138 *
12139 * This routine is invoked to manually add a single FCF record. The caller
12140 * must pass a completely initialized FCF_Record. This routine takes
12141 * care of the nonembedded mailbox operations.
12142 **/
12143int
12144lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
12145{
12146 int rc = 0;
12147 LPFC_MBOXQ_t *mboxq;
12148 uint8_t *bytep;
12149 void *virt_addr;
12150 dma_addr_t phys_addr;
12151 struct lpfc_mbx_sge sge;
12152 uint32_t alloc_len, req_len;
12153 uint32_t fcfindex;
12154
12155 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12156 if (!mboxq) {
12157 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12158 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12159 return -ENOMEM;
12160 }
12161
12162 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
12163 sizeof(uint32_t);
12164
12165 /* Allocate DMA memory and set up the non-embedded mailbox command */
12166 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
12167 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
12168 req_len, LPFC_SLI4_MBX_NEMBED);
12169 if (alloc_len < req_len) {
12170 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12171 "2523 Allocated DMA memory size (x%x) is "
12172 "less than the requested DMA memory "
12173 "size (x%x)\n", alloc_len, req_len);
12174 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12175 return -ENOMEM;
12176 }
12177
12178 /*
12179 * Get the first SGE entry from the non-embedded DMA memory. This
12180 * routine only uses a single SGE.
12181 */
12182 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
12183 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
James Smart6fb120a2009-05-22 14:52:59 -040012184 virt_addr = mboxq->sge_array->addr[0];
12185 /*
12186 * Configure the FCF record for FCFI 0. This is the driver's
12187 * hardcoded default and gets used in nonFIP mode.
12188 */
12189 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
12190 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
12191 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
12192
12193 /*
12194 * Copy the fcf_index and the FCF Record Data. The data starts after
12195 * the FCoE header plus word10. The data copy needs to be endian
12196 * correct.
12197 */
12198 bytep += sizeof(uint32_t);
12199 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
12200 mboxq->vport = phba->pport;
12201 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
12202 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12203 if (rc == MBX_NOT_FINISHED) {
12204 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12205 "2515 ADD_FCF_RECORD mailbox failed with "
12206 "status 0x%x\n", rc);
12207 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12208 rc = -EIO;
12209 } else
12210 rc = 0;
12211
12212 return rc;
12213}
12214
12215/**
12216 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12217 * @phba: pointer to lpfc hba data structure.
12218 * @fcf_record: pointer to the fcf record to write the default data.
12219 * @fcf_index: FCF table entry index.
12220 *
12221 * This routine is invoked to build the driver's default FCF record. The
12222 * values used are hardcoded. This routine handles memory initialization.
12223 *
12224 **/
12225void
12226lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
12227 struct fcf_record *fcf_record,
12228 uint16_t fcf_index)
12229{
12230 memset(fcf_record, 0, sizeof(struct fcf_record));
12231 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
12232 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
12233 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
12234 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
12235 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
12236 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
12237 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
12238 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
12239 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
12240 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
12241 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
12242 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
12243 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040012244 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040012245 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
12246 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
12247 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
12248 /* Set the VLAN bit map */
12249 if (phba->valid_vlan) {
12250 fcf_record->vlan_bitmap[phba->vlan_id / 8]
12251 = 1 << (phba->vlan_id % 8);
12252 }
12253}
12254
12255/**
James Smart0c9ab6f2010-02-26 14:15:57 -050012256 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
James Smart6fb120a2009-05-22 14:52:59 -040012257 * @phba: pointer to lpfc hba data structure.
12258 * @fcf_index: FCF table entry offset.
12259 *
James Smart0c9ab6f2010-02-26 14:15:57 -050012260 * This routine is invoked to scan the entire FCF table by reading FCF
12261 * record and processing it one at a time starting from the @fcf_index
12262 * for initial FCF discovery or fast FCF failover rediscovery.
12263 *
12264 * Return 0 if the mailbox command is submitted sucessfully, none 0
12265 * otherwise.
James Smart6fb120a2009-05-22 14:52:59 -040012266 **/
12267int
James Smart0c9ab6f2010-02-26 14:15:57 -050012268lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
James Smart6fb120a2009-05-22 14:52:59 -040012269{
12270 int rc = 0, error;
12271 LPFC_MBOXQ_t *mboxq;
James Smart6fb120a2009-05-22 14:52:59 -040012272
James Smart32b97932009-07-19 10:01:21 -040012273 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040012274 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12275 if (!mboxq) {
12276 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12277 "2000 Failed to allocate mbox for "
12278 "READ_FCF cmd\n");
James Smart4d9ab992009-10-02 15:16:39 -040012279 error = -ENOMEM;
James Smart0c9ab6f2010-02-26 14:15:57 -050012280 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040012281 }
James Smartecfd03c2010-02-12 14:41:27 -050012282 /* Construct the read FCF record mailbox command */
James Smart0c9ab6f2010-02-26 14:15:57 -050012283 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
James Smartecfd03c2010-02-12 14:41:27 -050012284 if (rc) {
12285 error = -EINVAL;
James Smart0c9ab6f2010-02-26 14:15:57 -050012286 goto fail_fcf_scan;
James Smart6fb120a2009-05-22 14:52:59 -040012287 }
James Smartecfd03c2010-02-12 14:41:27 -050012288 /* Issue the mailbox command asynchronously */
James Smart6fb120a2009-05-22 14:52:59 -040012289 mboxq->vport = phba->pport;
James Smart0c9ab6f2010-02-26 14:15:57 -050012290 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_scan_read_fcf_rec;
James Smart6fb120a2009-05-22 14:52:59 -040012291 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
James Smartecfd03c2010-02-12 14:41:27 -050012292 if (rc == MBX_NOT_FINISHED)
James Smart6fb120a2009-05-22 14:52:59 -040012293 error = -EIO;
James Smartecfd03c2010-02-12 14:41:27 -050012294 else {
James Smart32b97932009-07-19 10:01:21 -040012295 spin_lock_irq(&phba->hbalock);
12296 phba->hba_flag |= FCF_DISC_INPROGRESS;
12297 spin_unlock_irq(&phba->hbalock);
James Smart38b92ef2010-08-04 16:11:39 -040012298 /* Reset eligible FCF count for new scan */
12299 if (fcf_index == LPFC_FCOE_FCF_GET_FIRST)
James Smart999d8132010-03-15 11:24:56 -040012300 phba->fcf.eligible_fcf_cnt = 0;
James Smart6fb120a2009-05-22 14:52:59 -040012301 error = 0;
James Smart32b97932009-07-19 10:01:21 -040012302 }
James Smart0c9ab6f2010-02-26 14:15:57 -050012303fail_fcf_scan:
James Smart4d9ab992009-10-02 15:16:39 -040012304 if (error) {
12305 if (mboxq)
12306 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12307 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12308 spin_lock_irq(&phba->hbalock);
12309 phba->hba_flag &= ~FCF_DISC_INPROGRESS;
12310 spin_unlock_irq(&phba->hbalock);
12311 }
James Smart6fb120a2009-05-22 14:52:59 -040012312 return error;
12313}
James Smarta0c87cb2009-07-19 10:01:10 -040012314
12315/**
James Smart0c9ab6f2010-02-26 14:15:57 -050012316 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
12317 * @phba: pointer to lpfc hba data structure.
12318 * @fcf_index: FCF table entry offset.
12319 *
12320 * This routine is invoked to read an FCF record indicated by @fcf_index
12321 * and to use it for FLOGI round robin FCF failover.
12322 *
12323 * Return 0 if the mailbox command is submitted sucessfully, none 0
12324 * otherwise.
12325 **/
12326int
12327lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12328{
12329 int rc = 0, error;
12330 LPFC_MBOXQ_t *mboxq;
12331
12332 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12333 if (!mboxq) {
12334 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12335 "2763 Failed to allocate mbox for "
12336 "READ_FCF cmd\n");
12337 error = -ENOMEM;
12338 goto fail_fcf_read;
12339 }
12340 /* Construct the read FCF record mailbox command */
12341 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12342 if (rc) {
12343 error = -EINVAL;
12344 goto fail_fcf_read;
12345 }
12346 /* Issue the mailbox command asynchronously */
12347 mboxq->vport = phba->pport;
12348 mboxq->mbox_cmpl = lpfc_mbx_cmpl_fcf_rr_read_fcf_rec;
12349 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12350 if (rc == MBX_NOT_FINISHED)
12351 error = -EIO;
12352 else
12353 error = 0;
12354
12355fail_fcf_read:
12356 if (error && mboxq)
12357 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12358 return error;
12359}
12360
12361/**
12362 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12363 * @phba: pointer to lpfc hba data structure.
12364 * @fcf_index: FCF table entry offset.
12365 *
12366 * This routine is invoked to read an FCF record indicated by @fcf_index to
12367 * determine whether it's eligible for FLOGI round robin failover list.
12368 *
12369 * Return 0 if the mailbox command is submitted sucessfully, none 0
12370 * otherwise.
12371 **/
12372int
12373lpfc_sli4_read_fcf_rec(struct lpfc_hba *phba, uint16_t fcf_index)
12374{
12375 int rc = 0, error;
12376 LPFC_MBOXQ_t *mboxq;
12377
12378 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12379 if (!mboxq) {
12380 lpfc_printf_log(phba, KERN_ERR, LOG_FIP | LOG_INIT,
12381 "2758 Failed to allocate mbox for "
12382 "READ_FCF cmd\n");
12383 error = -ENOMEM;
12384 goto fail_fcf_read;
12385 }
12386 /* Construct the read FCF record mailbox command */
12387 rc = lpfc_sli4_mbx_read_fcf_rec(phba, mboxq, fcf_index);
12388 if (rc) {
12389 error = -EINVAL;
12390 goto fail_fcf_read;
12391 }
12392 /* Issue the mailbox command asynchronously */
12393 mboxq->vport = phba->pport;
12394 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_rec;
12395 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
12396 if (rc == MBX_NOT_FINISHED)
12397 error = -EIO;
12398 else
12399 error = 0;
12400
12401fail_fcf_read:
12402 if (error && mboxq)
12403 lpfc_sli4_mbox_cmd_free(phba, mboxq);
12404 return error;
12405}
12406
12407/**
12408 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12409 * @phba: pointer to lpfc hba data structure.
12410 *
12411 * This routine is to get the next eligible FCF record index in a round
12412 * robin fashion. If the next eligible FCF record index equals to the
12413 * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12414 * shall be returned, otherwise, the next eligible FCF record's index
12415 * shall be returned.
12416 **/
12417uint16_t
12418lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba *phba)
12419{
12420 uint16_t next_fcf_index;
12421
James Smart3804dc82010-07-14 15:31:37 -040012422 /* Search start from next bit of currently registered FCF index */
12423 next_fcf_index = (phba->fcf.current_rec.fcf_indx + 1) %
12424 LPFC_SLI4_FCF_TBL_INDX_MAX;
James Smart0c9ab6f2010-02-26 14:15:57 -050012425 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12426 LPFC_SLI4_FCF_TBL_INDX_MAX,
James Smart3804dc82010-07-14 15:31:37 -040012427 next_fcf_index);
12428
James Smart0c9ab6f2010-02-26 14:15:57 -050012429 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12430 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX)
12431 next_fcf_index = find_next_bit(phba->fcf.fcf_rr_bmask,
12432 LPFC_SLI4_FCF_TBL_INDX_MAX, 0);
James Smart0c9ab6f2010-02-26 14:15:57 -050012433
James Smart3804dc82010-07-14 15:31:37 -040012434 /* Check roundrobin failover list empty condition */
12435 if (next_fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12436 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
12437 "2844 No roundrobin failover FCF available\n");
12438 return LPFC_FCOE_FCF_NEXT_NONE;
12439 }
12440
12441 /* Check roundrobin failover index bmask stop condition */
12442 if (next_fcf_index == phba->fcf.fcf_rr_init_indx) {
12443 if (!(phba->fcf.fcf_flag & FCF_REDISC_RRU)) {
12444 lpfc_printf_log(phba, KERN_WARNING, LOG_FIP,
12445 "2847 Round robin failover FCF index "
12446 "search hit stop condition:x%x\n",
12447 next_fcf_index);
12448 return LPFC_FCOE_FCF_NEXT_NONE;
12449 }
12450 /* The roundrobin failover index bmask updated, start over */
12451 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12452 "2848 Round robin failover FCF index bmask "
12453 "updated, start over\n");
12454 spin_lock_irq(&phba->hbalock);
12455 phba->fcf.fcf_flag &= ~FCF_REDISC_RRU;
12456 spin_unlock_irq(&phba->hbalock);
12457 return phba->fcf.fcf_rr_init_indx;
12458 }
12459
12460 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12461 "2845 Get next round robin failover "
12462 "FCF index x%x\n", next_fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050012463 return next_fcf_index;
12464}
12465
12466/**
12467 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12468 * @phba: pointer to lpfc hba data structure.
12469 *
12470 * This routine sets the FCF record index in to the eligible bmask for
12471 * round robin failover search. It checks to make sure that the index
12472 * does not go beyond the range of the driver allocated bmask dimension
12473 * before setting the bit.
12474 *
12475 * Returns 0 if the index bit successfully set, otherwise, it returns
12476 * -EINVAL.
12477 **/
12478int
12479lpfc_sli4_fcf_rr_index_set(struct lpfc_hba *phba, uint16_t fcf_index)
12480{
12481 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12482 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
12483 "2610 HBA FCF index reached driver's "
12484 "book keeping dimension: fcf_index:%d, "
12485 "driver_bmask_max:%d\n",
12486 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
12487 return -EINVAL;
12488 }
12489 /* Set the eligible FCF record index bmask */
12490 set_bit(fcf_index, phba->fcf.fcf_rr_bmask);
12491
James Smart3804dc82010-07-14 15:31:37 -040012492 /* Set the roundrobin index bmask updated */
12493 spin_lock_irq(&phba->hbalock);
12494 phba->fcf.fcf_flag |= FCF_REDISC_RRU;
12495 spin_unlock_irq(&phba->hbalock);
12496
12497 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12498 "2790 Set FCF index x%x to round robin failover "
12499 "bmask\n", fcf_index);
12500
James Smart0c9ab6f2010-02-26 14:15:57 -050012501 return 0;
12502}
12503
12504/**
James Smart3804dc82010-07-14 15:31:37 -040012505 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
James Smart0c9ab6f2010-02-26 14:15:57 -050012506 * @phba: pointer to lpfc hba data structure.
12507 *
12508 * This routine clears the FCF record index from the eligible bmask for
12509 * round robin failover search. It checks to make sure that the index
12510 * does not go beyond the range of the driver allocated bmask dimension
12511 * before clearing the bit.
12512 **/
12513void
12514lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba *phba, uint16_t fcf_index)
12515{
12516 if (fcf_index >= LPFC_SLI4_FCF_TBL_INDX_MAX) {
12517 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
12518 "2762 HBA FCF index goes beyond driver's "
12519 "book keeping dimension: fcf_index:%d, "
12520 "driver_bmask_max:%d\n",
12521 fcf_index, LPFC_SLI4_FCF_TBL_INDX_MAX);
12522 return;
12523 }
12524 /* Clear the eligible FCF record index bmask */
12525 clear_bit(fcf_index, phba->fcf.fcf_rr_bmask);
James Smart3804dc82010-07-14 15:31:37 -040012526
12527 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12528 "2791 Clear FCF index x%x from round robin failover "
12529 "bmask\n", fcf_index);
James Smart0c9ab6f2010-02-26 14:15:57 -050012530}
12531
12532/**
James Smartecfd03c2010-02-12 14:41:27 -050012533 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12534 * @phba: pointer to lpfc hba data structure.
12535 *
12536 * This routine is the completion routine for the rediscover FCF table mailbox
12537 * command. If the mailbox command returned failure, it will try to stop the
12538 * FCF rediscover wait timer.
12539 **/
12540void
12541lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbox)
12542{
12543 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12544 uint32_t shdr_status, shdr_add_status;
12545
12546 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12547
12548 shdr_status = bf_get(lpfc_mbox_hdr_status,
12549 &redisc_fcf->header.cfg_shdr.response);
12550 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status,
12551 &redisc_fcf->header.cfg_shdr.response);
12552 if (shdr_status || shdr_add_status) {
James Smart0c9ab6f2010-02-26 14:15:57 -050012553 lpfc_printf_log(phba, KERN_ERR, LOG_FIP,
James Smartecfd03c2010-02-12 14:41:27 -050012554 "2746 Requesting for FCF rediscovery failed "
12555 "status x%x add_status x%x\n",
12556 shdr_status, shdr_add_status);
James Smart0c9ab6f2010-02-26 14:15:57 -050012557 if (phba->fcf.fcf_flag & FCF_ACVL_DISC) {
James Smartfc2b9892010-02-26 14:15:29 -050012558 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050012559 phba->fcf.fcf_flag &= ~FCF_ACVL_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050012560 spin_unlock_irq(&phba->hbalock);
12561 /*
12562 * CVL event triggered FCF rediscover request failed,
12563 * last resort to re-try current registered FCF entry.
12564 */
12565 lpfc_retry_pport_discovery(phba);
12566 } else {
12567 spin_lock_irq(&phba->hbalock);
James Smart0c9ab6f2010-02-26 14:15:57 -050012568 phba->fcf.fcf_flag &= ~FCF_DEAD_DISC;
James Smartfc2b9892010-02-26 14:15:29 -050012569 spin_unlock_irq(&phba->hbalock);
12570 /*
12571 * DEAD FCF event triggered FCF rediscover request
12572 * failed, last resort to fail over as a link down
12573 * to FCF registration.
12574 */
12575 lpfc_sli4_fcf_dead_failthrough(phba);
12576 }
James Smart0c9ab6f2010-02-26 14:15:57 -050012577 } else {
12578 lpfc_printf_log(phba, KERN_INFO, LOG_FIP,
12579 "2775 Start FCF rediscovery quiescent period "
12580 "wait timer before scaning FCF table\n");
James Smartecfd03c2010-02-12 14:41:27 -050012581 /*
12582 * Start FCF rediscovery wait timer for pending FCF
12583 * before rescan FCF record table.
12584 */
12585 lpfc_fcf_redisc_wait_start_timer(phba);
James Smart0c9ab6f2010-02-26 14:15:57 -050012586 }
James Smartecfd03c2010-02-12 14:41:27 -050012587
12588 mempool_free(mbox, phba->mbox_mem_pool);
12589}
12590
12591/**
James Smart3804dc82010-07-14 15:31:37 -040012592 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
James Smartecfd03c2010-02-12 14:41:27 -050012593 * @phba: pointer to lpfc hba data structure.
12594 *
12595 * This routine is invoked to request for rediscovery of the entire FCF table
12596 * by the port.
12597 **/
12598int
12599lpfc_sli4_redisc_fcf_table(struct lpfc_hba *phba)
12600{
12601 LPFC_MBOXQ_t *mbox;
12602 struct lpfc_mbx_redisc_fcf_tbl *redisc_fcf;
12603 int rc, length;
12604
James Smart0c9ab6f2010-02-26 14:15:57 -050012605 /* Cancel retry delay timers to all vports before FCF rediscover */
12606 lpfc_cancel_all_vport_retry_delay_timer(phba);
12607
James Smartecfd03c2010-02-12 14:41:27 -050012608 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12609 if (!mbox) {
12610 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12611 "2745 Failed to allocate mbox for "
12612 "requesting FCF rediscover.\n");
12613 return -ENOMEM;
12614 }
12615
12616 length = (sizeof(struct lpfc_mbx_redisc_fcf_tbl) -
12617 sizeof(struct lpfc_sli4_cfg_mhdr));
12618 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
12619 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF,
12620 length, LPFC_SLI4_MBX_EMBED);
12621
12622 redisc_fcf = &mbox->u.mqe.un.redisc_fcf_tbl;
12623 /* Set count to 0 for invalidating the entire FCF database */
12624 bf_set(lpfc_mbx_redisc_fcf_count, redisc_fcf, 0);
12625
12626 /* Issue the mailbox command asynchronously */
12627 mbox->vport = phba->pport;
12628 mbox->mbox_cmpl = lpfc_mbx_cmpl_redisc_fcf_table;
12629 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
12630
12631 if (rc == MBX_NOT_FINISHED) {
12632 mempool_free(mbox, phba->mbox_mem_pool);
12633 return -EIO;
12634 }
12635 return 0;
12636}
12637
12638/**
James Smartfc2b9892010-02-26 14:15:29 -050012639 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
12640 * @phba: pointer to lpfc hba data structure.
12641 *
12642 * This function is the failover routine as a last resort to the FCF DEAD
12643 * event when driver failed to perform fast FCF failover.
12644 **/
12645void
12646lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
12647{
12648 uint32_t link_state;
12649
12650 /*
12651 * Last resort as FCF DEAD event failover will treat this as
12652 * a link down, but save the link state because we don't want
12653 * it to be changed to Link Down unless it is already down.
12654 */
12655 link_state = phba->link_state;
12656 lpfc_linkdown(phba);
12657 phba->link_state = link_state;
12658
12659 /* Unregister FCF if no devices connected to it */
12660 lpfc_unregister_unused_fcf(phba);
12661}
12662
12663/**
James Smarta0c87cb2009-07-19 10:01:10 -040012664 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12665 * @phba: pointer to lpfc hba data structure.
12666 *
12667 * This function read region 23 and parse TLV for port status to
12668 * decide if the user disaled the port. If the TLV indicates the
12669 * port is disabled, the hba_flag is set accordingly.
12670 **/
12671void
12672lpfc_sli_read_link_ste(struct lpfc_hba *phba)
12673{
12674 LPFC_MBOXQ_t *pmb = NULL;
12675 MAILBOX_t *mb;
12676 uint8_t *rgn23_data = NULL;
12677 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
12678 int rc;
12679
12680 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
12681 if (!pmb) {
12682 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12683 "2600 lpfc_sli_read_serdes_param failed to"
12684 " allocate mailbox memory\n");
12685 goto out;
12686 }
12687 mb = &pmb->u.mb;
12688
12689 /* Get adapter Region 23 data */
12690 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
12691 if (!rgn23_data)
12692 goto out;
12693
12694 do {
12695 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
12696 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
12697
12698 if (rc != MBX_SUCCESS) {
12699 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
12700 "2601 lpfc_sli_read_link_ste failed to"
12701 " read config region 23 rc 0x%x Status 0x%x\n",
12702 rc, mb->mbxStatus);
12703 mb->un.varDmp.word_cnt = 0;
12704 }
12705 /*
12706 * dump mem may return a zero when finished or we got a
12707 * mailbox error, either way we are done.
12708 */
12709 if (mb->un.varDmp.word_cnt == 0)
12710 break;
12711 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
12712 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
12713
12714 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
12715 rgn23_data + offset,
12716 mb->un.varDmp.word_cnt);
12717 offset += mb->un.varDmp.word_cnt;
12718 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
12719
12720 data_size = offset;
12721 offset = 0;
12722
12723 if (!data_size)
12724 goto out;
12725
12726 /* Check the region signature first */
12727 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
12728 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12729 "2619 Config region 23 has bad signature\n");
12730 goto out;
12731 }
12732 offset += 4;
12733
12734 /* Check the data structure version */
12735 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
12736 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
12737 "2620 Config region 23 has bad version\n");
12738 goto out;
12739 }
12740 offset += 4;
12741
12742 /* Parse TLV entries in the region */
12743 while (offset < data_size) {
12744 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
12745 break;
12746 /*
12747 * If the TLV is not driver specific TLV or driver id is
12748 * not linux driver id, skip the record.
12749 */
12750 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
12751 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
12752 (rgn23_data[offset + 3] != 0)) {
12753 offset += rgn23_data[offset + 1] * 4 + 4;
12754 continue;
12755 }
12756
12757 /* Driver found a driver specific TLV in the config region */
12758 sub_tlv_len = rgn23_data[offset + 1] * 4;
12759 offset += 4;
12760 tlv_offset = 0;
12761
12762 /*
12763 * Search for configured port state sub-TLV.
12764 */
12765 while ((offset < data_size) &&
12766 (tlv_offset < sub_tlv_len)) {
12767 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
12768 offset += 4;
12769 tlv_offset += 4;
12770 break;
12771 }
12772 if (rgn23_data[offset] != PORT_STE_TYPE) {
12773 offset += rgn23_data[offset + 1] * 4 + 4;
12774 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
12775 continue;
12776 }
12777
12778 /* This HBA contains PORT_STE configured */
12779 if (!rgn23_data[offset + 2])
12780 phba->hba_flag |= LINK_DISABLED;
12781
12782 goto out;
12783 }
12784 }
12785out:
12786 if (pmb)
12787 mempool_free(pmb, phba->mbox_mem_pool);
12788 kfree(rgn23_data);
12789 return;
12790}
James Smart695a8142010-01-26 23:08:03 -050012791
12792/**
12793 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12794 * @vport: pointer to vport data structure.
12795 *
12796 * This function iterate through the mailboxq and clean up all REG_LOGIN
12797 * and REG_VPI mailbox commands associated with the vport. This function
12798 * is called when driver want to restart discovery of the vport due to
12799 * a Clear Virtual Link event.
12800 **/
12801void
12802lpfc_cleanup_pending_mbox(struct lpfc_vport *vport)
12803{
12804 struct lpfc_hba *phba = vport->phba;
12805 LPFC_MBOXQ_t *mb, *nextmb;
12806 struct lpfc_dmabuf *mp;
James Smart78730cf2010-04-06 15:06:30 -040012807 struct lpfc_nodelist *ndlp;
James Smart589a52d2010-07-14 15:30:54 -040012808 struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
James Smart695a8142010-01-26 23:08:03 -050012809
12810 spin_lock_irq(&phba->hbalock);
12811 list_for_each_entry_safe(mb, nextmb, &phba->sli.mboxq, list) {
12812 if (mb->vport != vport)
12813 continue;
12814
12815 if ((mb->u.mb.mbxCommand != MBX_REG_LOGIN64) &&
12816 (mb->u.mb.mbxCommand != MBX_REG_VPI))
12817 continue;
12818
12819 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
James Smartd7c47992010-06-08 18:31:54 -040012820 if (phba->sli_rev == LPFC_SLI_REV4)
12821 __lpfc_sli4_free_rpi(phba,
12822 mb->u.mb.un.varRegLogin.rpi);
James Smart695a8142010-01-26 23:08:03 -050012823 mp = (struct lpfc_dmabuf *) (mb->context1);
12824 if (mp) {
12825 __lpfc_mbuf_free(phba, mp->virt, mp->phys);
12826 kfree(mp);
12827 }
James Smart78730cf2010-04-06 15:06:30 -040012828 ndlp = (struct lpfc_nodelist *) mb->context2;
12829 if (ndlp) {
James Smart589a52d2010-07-14 15:30:54 -040012830 spin_lock_irq(shost->host_lock);
12831 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
12832 spin_unlock_irq(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040012833 lpfc_nlp_put(ndlp);
12834 mb->context2 = NULL;
12835 }
James Smart695a8142010-01-26 23:08:03 -050012836 }
12837 list_del(&mb->list);
12838 mempool_free(mb, phba->mbox_mem_pool);
12839 }
12840 mb = phba->sli.mbox_active;
12841 if (mb && (mb->vport == vport)) {
12842 if ((mb->u.mb.mbxCommand == MBX_REG_LOGIN64) ||
12843 (mb->u.mb.mbxCommand == MBX_REG_VPI))
12844 mb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart78730cf2010-04-06 15:06:30 -040012845 if (mb->u.mb.mbxCommand == MBX_REG_LOGIN64) {
12846 ndlp = (struct lpfc_nodelist *) mb->context2;
12847 if (ndlp) {
James Smart589a52d2010-07-14 15:30:54 -040012848 spin_lock_irq(shost->host_lock);
12849 ndlp->nlp_flag &= ~NLP_IGNR_REG_CMPL;
12850 spin_unlock_irq(shost->host_lock);
James Smart78730cf2010-04-06 15:06:30 -040012851 lpfc_nlp_put(ndlp);
12852 mb->context2 = NULL;
12853 }
12854 /* Unregister the RPI when mailbox complete */
12855 mb->mbox_flag |= LPFC_MBX_IMED_UNREG;
12856 }
James Smart695a8142010-01-26 23:08:03 -050012857 }
12858 spin_unlock_irq(&phba->hbalock);
12859}
12860
James Smart2a9bf3d2010-06-07 15:24:45 -040012861/**
12862 * lpfc_drain_txq - Drain the txq
12863 * @phba: Pointer to HBA context object.
12864 *
12865 * This function attempt to submit IOCBs on the txq
12866 * to the adapter. For SLI4 adapters, the txq contains
12867 * ELS IOCBs that have been deferred because the there
12868 * are no SGLs. This congestion can occur with large
12869 * vport counts during node discovery.
12870 **/
12871
12872uint32_t
12873lpfc_drain_txq(struct lpfc_hba *phba)
12874{
12875 LIST_HEAD(completions);
12876 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
12877 struct lpfc_iocbq *piocbq = 0;
12878 unsigned long iflags = 0;
12879 char *fail_msg = NULL;
12880 struct lpfc_sglq *sglq;
12881 union lpfc_wqe wqe;
12882
12883 spin_lock_irqsave(&phba->hbalock, iflags);
12884 if (pring->txq_cnt > pring->txq_max)
12885 pring->txq_max = pring->txq_cnt;
12886
12887 spin_unlock_irqrestore(&phba->hbalock, iflags);
12888
12889 while (pring->txq_cnt) {
12890 spin_lock_irqsave(&phba->hbalock, iflags);
12891
12892 sglq = __lpfc_sli_get_sglq(phba);
12893 if (!sglq) {
12894 spin_unlock_irqrestore(&phba->hbalock, iflags);
12895 break;
12896 } else {
12897 piocbq = lpfc_sli_ringtx_get(phba, pring);
12898 if (!piocbq) {
12899 /* The txq_cnt out of sync. This should
12900 * never happen
12901 */
12902 sglq = __lpfc_clear_active_sglq(phba,
12903 sglq->sli4_xritag);
12904 spin_unlock_irqrestore(&phba->hbalock, iflags);
12905 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12906 "2823 txq empty and txq_cnt is %d\n ",
12907 pring->txq_cnt);
12908 break;
12909 }
12910 }
12911
12912 /* The xri and iocb resources secured,
12913 * attempt to issue request
12914 */
12915 piocbq->sli4_xritag = sglq->sli4_xritag;
12916 if (NO_XRI == lpfc_sli4_bpl2sgl(phba, piocbq, sglq))
12917 fail_msg = "to convert bpl to sgl";
12918 else if (lpfc_sli4_iocb2wqe(phba, piocbq, &wqe))
12919 fail_msg = "to convert iocb to wqe";
12920 else if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
12921 fail_msg = " - Wq is full";
12922 else
12923 lpfc_sli_ringtxcmpl_put(phba, pring, piocbq);
12924
12925 if (fail_msg) {
12926 /* Failed means we can't issue and need to cancel */
12927 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
12928 "2822 IOCB failed %s iotag 0x%x "
12929 "xri 0x%x\n",
12930 fail_msg,
12931 piocbq->iotag, piocbq->sli4_xritag);
12932 list_add_tail(&piocbq->list, &completions);
12933 }
12934 spin_unlock_irqrestore(&phba->hbalock, iflags);
12935 }
12936
James Smart2a9bf3d2010-06-07 15:24:45 -040012937 /* Cancel all the IOCBs that cannot be issued */
12938 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
12939 IOERR_SLI_ABORTED);
12940
12941 return pring->txq_cnt;
12942}