blob: 43cbe336f1f8a5882bf928e1bb9f6d0e1ec2c8f2 [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>
26
James.Smart@Emulex.Com91886522005-08-10 15:03:09 -040027#include <scsi/scsi.h>
dea31012005-04-17 16:05:31 -050028#include <scsi/scsi_cmnd.h>
29#include <scsi/scsi_device.h>
30#include <scsi/scsi_host.h>
James.Smart@Emulex.Comf888ba32005-08-10 15:03:01 -040031#include <scsi/scsi_transport_fc.h>
James Smartda0436e2009-05-22 14:51:39 -040032#include <scsi/fc/fc_fs.h>
dea31012005-04-17 16:05:31 -050033
James Smartda0436e2009-05-22 14:51:39 -040034#include "lpfc_hw4.h"
dea31012005-04-17 16:05:31 -050035#include "lpfc_hw.h"
36#include "lpfc_sli.h"
James Smartda0436e2009-05-22 14:51:39 -040037#include "lpfc_sli4.h"
James Smartea2151b2008-09-07 11:52:10 -040038#include "lpfc_nl.h"
dea31012005-04-17 16:05:31 -050039#include "lpfc_disc.h"
40#include "lpfc_scsi.h"
41#include "lpfc.h"
42#include "lpfc_crtn.h"
43#include "lpfc_logmsg.h"
44#include "lpfc_compat.h"
James Smart858c9f62007-06-17 19:56:39 -050045#include "lpfc_debugfs.h"
James Smart04c68492009-05-22 14:52:52 -040046#include "lpfc_vport.h"
dea31012005-04-17 16:05:31 -050047
48/* There are only four IOCB completion types. */
49typedef enum _lpfc_iocb_type {
50 LPFC_UNKNOWN_IOCB,
51 LPFC_UNSOL_IOCB,
52 LPFC_SOL_IOCB,
53 LPFC_ABORT_IOCB
54} lpfc_iocb_type;
55
James Smart4f774512009-05-22 14:52:35 -040056
57/* Provide function prototypes local to this module. */
58static int lpfc_sli_issue_mbox_s4(struct lpfc_hba *, LPFC_MBOXQ_t *,
59 uint32_t);
60static int lpfc_sli4_read_rev(struct lpfc_hba *, LPFC_MBOXQ_t *,
61 uint8_t *, uint32_t *);
62
63static IOCB_t *
64lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
65{
66 return &iocbq->iocb;
67}
68
69/**
70 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
71 * @q: The Work Queue to operate on.
72 * @wqe: The work Queue Entry to put on the Work queue.
73 *
74 * This routine will copy the contents of @wqe to the next available entry on
75 * the @q. This function will then ring the Work Queue Doorbell to signal the
76 * HBA to start processing the Work Queue Entry. This function returns 0 if
77 * successful. If no entries are available on @q then this function will return
78 * -ENOMEM.
79 * The caller is expected to hold the hbalock when calling this routine.
80 **/
81static uint32_t
82lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
83{
84 union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
85 struct lpfc_register doorbell;
86 uint32_t host_index;
87
88 /* If the host has not yet processed the next entry then we are done */
89 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
90 return -ENOMEM;
91 /* set consumption flag every once in a while */
92 if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
93 bf_set(lpfc_wqe_gen_wqec, &wqe->generic, 1);
94
95 lpfc_sli_pcimem_bcopy(wqe, temp_wqe, q->entry_size);
96
97 /* Update the host index before invoking device */
98 host_index = q->host_index;
99 q->host_index = ((q->host_index + 1) % q->entry_count);
100
101 /* Ring Doorbell */
102 doorbell.word0 = 0;
103 bf_set(lpfc_wq_doorbell_num_posted, &doorbell, 1);
104 bf_set(lpfc_wq_doorbell_index, &doorbell, host_index);
105 bf_set(lpfc_wq_doorbell_id, &doorbell, q->queue_id);
106 writel(doorbell.word0, q->phba->sli4_hba.WQDBregaddr);
107 readl(q->phba->sli4_hba.WQDBregaddr); /* Flush */
108
109 return 0;
110}
111
112/**
113 * lpfc_sli4_wq_release - Updates internal hba index for WQ
114 * @q: The Work Queue to operate on.
115 * @index: The index to advance the hba index to.
116 *
117 * This routine will update the HBA index of a queue to reflect consumption of
118 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
119 * an entry the host calls this function to update the queue's internal
120 * pointers. This routine returns the number of entries that were consumed by
121 * the HBA.
122 **/
123static uint32_t
124lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
125{
126 uint32_t released = 0;
127
128 if (q->hba_index == index)
129 return 0;
130 do {
131 q->hba_index = ((q->hba_index + 1) % q->entry_count);
132 released++;
133 } while (q->hba_index != index);
134 return released;
135}
136
137/**
138 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
139 * @q: The Mailbox Queue to operate on.
140 * @wqe: The Mailbox Queue Entry to put on the Work queue.
141 *
142 * This routine will copy the contents of @mqe to the next available entry on
143 * the @q. This function will then ring the Work Queue Doorbell to signal the
144 * HBA to start processing the Work Queue Entry. This function returns 0 if
145 * successful. If no entries are available on @q then this function will return
146 * -ENOMEM.
147 * The caller is expected to hold the hbalock when calling this routine.
148 **/
149static uint32_t
150lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
151{
152 struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
153 struct lpfc_register doorbell;
154 uint32_t host_index;
155
156 /* If the host has not yet processed the next entry then we are done */
157 if (((q->host_index + 1) % q->entry_count) == q->hba_index)
158 return -ENOMEM;
159 lpfc_sli_pcimem_bcopy(mqe, temp_mqe, q->entry_size);
160 /* Save off the mailbox pointer for completion */
161 q->phba->mbox = (MAILBOX_t *)temp_mqe;
162
163 /* Update the host index before invoking device */
164 host_index = q->host_index;
165 q->host_index = ((q->host_index + 1) % q->entry_count);
166
167 /* Ring Doorbell */
168 doorbell.word0 = 0;
169 bf_set(lpfc_mq_doorbell_num_posted, &doorbell, 1);
170 bf_set(lpfc_mq_doorbell_id, &doorbell, q->queue_id);
171 writel(doorbell.word0, q->phba->sli4_hba.MQDBregaddr);
172 readl(q->phba->sli4_hba.MQDBregaddr); /* Flush */
173 return 0;
174}
175
176/**
177 * lpfc_sli4_mq_release - Updates internal hba index for MQ
178 * @q: The Mailbox Queue to operate on.
179 *
180 * This routine will update the HBA index of a queue to reflect consumption of
181 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
182 * an entry the host calls this function to update the queue's internal
183 * pointers. This routine returns the number of entries that were consumed by
184 * the HBA.
185 **/
186static uint32_t
187lpfc_sli4_mq_release(struct lpfc_queue *q)
188{
189 /* Clear the mailbox pointer for completion */
190 q->phba->mbox = NULL;
191 q->hba_index = ((q->hba_index + 1) % q->entry_count);
192 return 1;
193}
194
195/**
196 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
197 * @q: The Event Queue to get the first valid EQE from
198 *
199 * This routine will get the first valid Event Queue Entry from @q, update
200 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
201 * the Queue (no more work to do), or the Queue is full of EQEs that have been
202 * processed, but not popped back to the HBA then this routine will return NULL.
203 **/
204static struct lpfc_eqe *
205lpfc_sli4_eq_get(struct lpfc_queue *q)
206{
207 struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
208
209 /* If the next EQE is not valid then we are done */
210 if (!bf_get(lpfc_eqe_valid, eqe))
211 return NULL;
212 /* If the host has not yet processed the next entry then we are done */
213 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
214 return NULL;
215
216 q->hba_index = ((q->hba_index + 1) % q->entry_count);
217 return eqe;
218}
219
220/**
221 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
222 * @q: The Event Queue that the host has completed processing for.
223 * @arm: Indicates whether the host wants to arms this CQ.
224 *
225 * This routine will mark all Event Queue Entries on @q, from the last
226 * known completed entry to the last entry that was processed, as completed
227 * by clearing the valid bit for each completion queue entry. Then it will
228 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
229 * The internal host index in the @q will be updated by this routine to indicate
230 * that the host has finished processing the entries. The @arm parameter
231 * indicates that the queue should be rearmed when ringing the doorbell.
232 *
233 * This function will return the number of EQEs that were popped.
234 **/
235uint32_t
236lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
237{
238 uint32_t released = 0;
239 struct lpfc_eqe *temp_eqe;
240 struct lpfc_register doorbell;
241
242 /* while there are valid entries */
243 while (q->hba_index != q->host_index) {
244 temp_eqe = q->qe[q->host_index].eqe;
245 bf_set(lpfc_eqe_valid, temp_eqe, 0);
246 released++;
247 q->host_index = ((q->host_index + 1) % q->entry_count);
248 }
249 if (unlikely(released == 0 && !arm))
250 return 0;
251
252 /* ring doorbell for number popped */
253 doorbell.word0 = 0;
254 if (arm) {
255 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
256 bf_set(lpfc_eqcq_doorbell_eqci, &doorbell, 1);
257 }
258 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
259 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_EVENT);
260 bf_set(lpfc_eqcq_doorbell_eqid, &doorbell, q->queue_id);
261 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
262 return released;
263}
264
265/**
266 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
267 * @q: The Completion Queue to get the first valid CQE from
268 *
269 * This routine will get the first valid Completion Queue Entry from @q, update
270 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
271 * the Queue (no more work to do), or the Queue is full of CQEs that have been
272 * processed, but not popped back to the HBA then this routine will return NULL.
273 **/
274static struct lpfc_cqe *
275lpfc_sli4_cq_get(struct lpfc_queue *q)
276{
277 struct lpfc_cqe *cqe;
278
279 /* If the next CQE is not valid then we are done */
280 if (!bf_get(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
281 return NULL;
282 /* If the host has not yet processed the next entry then we are done */
283 if (((q->hba_index + 1) % q->entry_count) == q->host_index)
284 return NULL;
285
286 cqe = q->qe[q->hba_index].cqe;
287 q->hba_index = ((q->hba_index + 1) % q->entry_count);
288 return cqe;
289}
290
291/**
292 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
293 * @q: The Completion Queue that the host has completed processing for.
294 * @arm: Indicates whether the host wants to arms this CQ.
295 *
296 * This routine will mark all Completion queue entries on @q, from the last
297 * known completed entry to the last entry that was processed, as completed
298 * by clearing the valid bit for each completion queue entry. Then it will
299 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
300 * The internal host index in the @q will be updated by this routine to indicate
301 * that the host has finished processing the entries. The @arm parameter
302 * indicates that the queue should be rearmed when ringing the doorbell.
303 *
304 * This function will return the number of CQEs that were released.
305 **/
306uint32_t
307lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
308{
309 uint32_t released = 0;
310 struct lpfc_cqe *temp_qe;
311 struct lpfc_register doorbell;
312
313 /* while there are valid entries */
314 while (q->hba_index != q->host_index) {
315 temp_qe = q->qe[q->host_index].cqe;
316 bf_set(lpfc_cqe_valid, temp_qe, 0);
317 released++;
318 q->host_index = ((q->host_index + 1) % q->entry_count);
319 }
320 if (unlikely(released == 0 && !arm))
321 return 0;
322
323 /* ring doorbell for number popped */
324 doorbell.word0 = 0;
325 if (arm)
326 bf_set(lpfc_eqcq_doorbell_arm, &doorbell, 1);
327 bf_set(lpfc_eqcq_doorbell_num_released, &doorbell, released);
328 bf_set(lpfc_eqcq_doorbell_qt, &doorbell, LPFC_QUEUE_TYPE_COMPLETION);
329 bf_set(lpfc_eqcq_doorbell_cqid, &doorbell, q->queue_id);
330 writel(doorbell.word0, q->phba->sli4_hba.EQCQDBregaddr);
331 return released;
332}
333
334/**
335 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
336 * @q: The Header Receive Queue to operate on.
337 * @wqe: The Receive Queue Entry to put on the Receive queue.
338 *
339 * This routine will copy the contents of @wqe to the next available entry on
340 * the @q. This function will then ring the Receive Queue Doorbell to signal the
341 * HBA to start processing the Receive Queue Entry. This function returns the
342 * index that the rqe was copied to if successful. If no entries are available
343 * on @q then this function will return -ENOMEM.
344 * The caller is expected to hold the hbalock when calling this routine.
345 **/
346static int
347lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
348 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
349{
350 struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
351 struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
352 struct lpfc_register doorbell;
353 int put_index = hq->host_index;
354
355 if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
356 return -EINVAL;
357 if (hq->host_index != dq->host_index)
358 return -EINVAL;
359 /* If the host has not yet processed the next entry then we are done */
360 if (((hq->host_index + 1) % hq->entry_count) == hq->hba_index)
361 return -EBUSY;
362 lpfc_sli_pcimem_bcopy(hrqe, temp_hrqe, hq->entry_size);
363 lpfc_sli_pcimem_bcopy(drqe, temp_drqe, dq->entry_size);
364
365 /* Update the host index to point to the next slot */
366 hq->host_index = ((hq->host_index + 1) % hq->entry_count);
367 dq->host_index = ((dq->host_index + 1) % dq->entry_count);
368
369 /* Ring The Header Receive Queue Doorbell */
370 if (!(hq->host_index % LPFC_RQ_POST_BATCH)) {
371 doorbell.word0 = 0;
372 bf_set(lpfc_rq_doorbell_num_posted, &doorbell,
373 LPFC_RQ_POST_BATCH);
374 bf_set(lpfc_rq_doorbell_id, &doorbell, hq->queue_id);
375 writel(doorbell.word0, hq->phba->sli4_hba.RQDBregaddr);
376 }
377 return put_index;
378}
379
380/**
381 * lpfc_sli4_rq_release - Updates internal hba index for RQ
382 * @q: The Header Receive Queue to operate on.
383 *
384 * This routine will update the HBA index of a queue to reflect consumption of
385 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
386 * consumed an entry the host calls this function to update the queue's
387 * internal pointers. This routine returns the number of entries that were
388 * consumed by the HBA.
389 **/
390static uint32_t
391lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
392{
393 if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
394 return 0;
395 hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
396 dq->hba_index = ((dq->hba_index + 1) % dq->entry_count);
397 return 1;
398}
399
James Smarte59058c2008-08-24 21:49:00 -0400400/**
James Smart3621a712009-04-06 18:47:14 -0400401 * lpfc_cmd_iocb - Get next command iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400402 * @phba: Pointer to HBA context object.
403 * @pring: Pointer to driver SLI ring object.
404 *
405 * This function returns pointer to next command iocb entry
406 * in the command ring. The caller must hold hbalock to prevent
407 * other threads consume the next command iocb.
408 * SLI-2/SLI-3 provide different sized iocbs.
409 **/
James Smarted957682007-06-17 19:56:37 -0500410static inline IOCB_t *
411lpfc_cmd_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
412{
413 return (IOCB_t *) (((char *) pring->cmdringaddr) +
414 pring->cmdidx * phba->iocb_cmd_size);
415}
416
James Smarte59058c2008-08-24 21:49:00 -0400417/**
James Smart3621a712009-04-06 18:47:14 -0400418 * lpfc_resp_iocb - Get next response iocb entry in the ring
James Smarte59058c2008-08-24 21:49:00 -0400419 * @phba: Pointer to HBA context object.
420 * @pring: Pointer to driver SLI ring object.
421 *
422 * This function returns pointer to next response iocb entry
423 * in the response ring. The caller must hold hbalock to make sure
424 * that no other thread consume the next response iocb.
425 * SLI-2/SLI-3 provide different sized iocbs.
426 **/
James Smarted957682007-06-17 19:56:37 -0500427static inline IOCB_t *
428lpfc_resp_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
429{
430 return (IOCB_t *) (((char *) pring->rspringaddr) +
431 pring->rspidx * phba->iocb_rsp_size);
432}
433
James Smarte59058c2008-08-24 21:49:00 -0400434/**
James Smart3621a712009-04-06 18:47:14 -0400435 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400436 * @phba: Pointer to HBA context object.
437 *
438 * This function is called with hbalock held. This function
439 * allocates a new driver iocb object from the iocb pool. If the
440 * allocation is successful, it returns pointer to the newly
441 * allocated iocb object else it returns NULL.
442 **/
James Smart2e0fef82007-06-17 19:56:36 -0500443static struct lpfc_iocbq *
444__lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -0400445{
446 struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
447 struct lpfc_iocbq * iocbq = NULL;
448
449 list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
450 return iocbq;
451}
452
James Smarte59058c2008-08-24 21:49:00 -0400453/**
James Smartda0436e2009-05-22 14:51:39 -0400454 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
455 * @phba: Pointer to HBA context object.
456 * @xritag: XRI value.
457 *
458 * This function clears the sglq pointer from the array of acive
459 * sglq's. The xritag that is passed in is used to index into the
460 * array. Before the xritag can be used it needs to be adjusted
461 * by subtracting the xribase.
462 *
463 * Returns sglq ponter = success, NULL = Failure.
464 **/
465static struct lpfc_sglq *
466__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
467{
468 uint16_t adj_xri;
469 struct lpfc_sglq *sglq;
470 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
471 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
472 return NULL;
473 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
474 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = NULL;
475 return sglq;
476}
477
478/**
479 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
480 * @phba: Pointer to HBA context object.
481 * @xritag: XRI value.
482 *
483 * This function returns the sglq pointer from the array of acive
484 * sglq's. The xritag that is passed in is used to index into the
485 * array. Before the xritag can be used it needs to be adjusted
486 * by subtracting the xribase.
487 *
488 * Returns sglq ponter = success, NULL = Failure.
489 **/
490static struct lpfc_sglq *
491__lpfc_get_active_sglq(struct lpfc_hba *phba, uint16_t xritag)
492{
493 uint16_t adj_xri;
494 struct lpfc_sglq *sglq;
495 adj_xri = xritag - phba->sli4_hba.max_cfg_param.xri_base;
496 if (adj_xri > phba->sli4_hba.max_cfg_param.max_xri)
497 return NULL;
498 sglq = phba->sli4_hba.lpfc_sglq_active_list[adj_xri];
499 return sglq;
500}
501
502/**
503 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
504 * @phba: Pointer to HBA context object.
505 *
506 * This function is called with hbalock held. This function
507 * Gets a new driver sglq object from the sglq list. If the
508 * list is not empty then it is successful, it returns pointer to the newly
509 * allocated sglq object else it returns NULL.
510 **/
511static struct lpfc_sglq *
512__lpfc_sli_get_sglq(struct lpfc_hba *phba)
513{
514 struct list_head *lpfc_sgl_list = &phba->sli4_hba.lpfc_sgl_list;
515 struct lpfc_sglq *sglq = NULL;
516 uint16_t adj_xri;
517 list_remove_head(lpfc_sgl_list, sglq, struct lpfc_sglq, list);
518 adj_xri = sglq->sli4_xritag - phba->sli4_hba.max_cfg_param.xri_base;
519 phba->sli4_hba.lpfc_sglq_active_list[adj_xri] = sglq;
520 return sglq;
521}
522
523/**
James Smart3621a712009-04-06 18:47:14 -0400524 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400525 * @phba: Pointer to HBA context object.
526 *
527 * This function is called with no lock held. This function
528 * allocates a new driver iocb object from the iocb pool. If the
529 * allocation is successful, it returns pointer to the newly
530 * allocated iocb object else it returns NULL.
531 **/
James Smart2e0fef82007-06-17 19:56:36 -0500532struct lpfc_iocbq *
533lpfc_sli_get_iocbq(struct lpfc_hba *phba)
James Bottomley604a3e32005-10-29 10:28:33 -0500534{
James Smart2e0fef82007-06-17 19:56:36 -0500535 struct lpfc_iocbq * iocbq = NULL;
536 unsigned long iflags;
537
538 spin_lock_irqsave(&phba->hbalock, iflags);
539 iocbq = __lpfc_sli_get_iocbq(phba);
540 spin_unlock_irqrestore(&phba->hbalock, iflags);
541 return iocbq;
542}
543
James Smarte59058c2008-08-24 21:49:00 -0400544/**
James Smart4f774512009-05-22 14:52:35 -0400545 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
546 * @phba: Pointer to HBA context object.
547 * @iocbq: Pointer to driver iocb object.
548 *
549 * This function is called with hbalock held to release driver
550 * iocb object to the iocb pool. The iotag in the iocb object
551 * does not change for each use of the iocb object. This function
552 * clears all other fields of the iocb object when it is freed.
553 * The sqlq structure that holds the xritag and phys and virtual
554 * mappings for the scatter gather list is retrieved from the
555 * active array of sglq. The get of the sglq pointer also clears
556 * the entry in the array. If the status of the IO indiactes that
557 * this IO was aborted then the sglq entry it put on the
558 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
559 * IO has good status or fails for any other reason then the sglq
560 * entry is added to the free list (lpfc_sgl_list).
561 **/
562static void
563__lpfc_sli_release_iocbq_s4(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
564{
565 struct lpfc_sglq *sglq;
566 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
567 unsigned long iflag;
568
569 if (iocbq->sli4_xritag == NO_XRI)
570 sglq = NULL;
571 else
572 sglq = __lpfc_clear_active_sglq(phba, iocbq->sli4_xritag);
573 if (sglq) {
574 if (iocbq->iocb_flag & LPFC_DRIVER_ABORTED
575 || ((iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
576 && (iocbq->iocb.un.ulpWord[4]
577 == IOERR_SLI_ABORTED))) {
578 spin_lock_irqsave(&phba->sli4_hba.abts_sgl_list_lock,
579 iflag);
580 list_add(&sglq->list,
581 &phba->sli4_hba.lpfc_abts_els_sgl_list);
582 spin_unlock_irqrestore(
583 &phba->sli4_hba.abts_sgl_list_lock, iflag);
584 } else
585 list_add(&sglq->list, &phba->sli4_hba.lpfc_sgl_list);
586 }
587
588
589 /*
590 * Clean all volatile data fields, preserve iotag and node struct.
591 */
592 memset((char *)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
593 iocbq->sli4_xritag = NO_XRI;
594 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
595}
596
597/**
James Smart3772a992009-05-22 14:50:54 -0400598 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
599 * @phba: Pointer to HBA context object.
600 * @iocbq: Pointer to driver iocb object.
601 *
602 * This function is called with hbalock held to release driver
603 * iocb object to the iocb pool. The iotag in the iocb object
604 * does not change for each use of the iocb object. This function
605 * clears all other fields of the iocb object when it is freed.
606 **/
607static void
608__lpfc_sli_release_iocbq_s3(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
609{
610 size_t start_clean = offsetof(struct lpfc_iocbq, iocb);
611
612 /*
613 * Clean all volatile data fields, preserve iotag and node struct.
614 */
615 memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
616 iocbq->sli4_xritag = NO_XRI;
617 list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
618}
619
620/**
James Smart3621a712009-04-06 18:47:14 -0400621 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400622 * @phba: Pointer to HBA context object.
623 * @iocbq: Pointer to driver iocb object.
624 *
625 * This function is called with hbalock held to release driver
626 * iocb object to the iocb pool. The iotag in the iocb object
627 * does not change for each use of the iocb object. This function
628 * clears all other fields of the iocb object when it is freed.
629 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +0100630static void
James Smart2e0fef82007-06-17 19:56:36 -0500631__lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
632{
James Smart3772a992009-05-22 14:50:54 -0400633 phba->__lpfc_sli_release_iocbq(phba, iocbq);
James Bottomley604a3e32005-10-29 10:28:33 -0500634}
635
James Smarte59058c2008-08-24 21:49:00 -0400636/**
James Smart3621a712009-04-06 18:47:14 -0400637 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
James Smarte59058c2008-08-24 21:49:00 -0400638 * @phba: Pointer to HBA context object.
639 * @iocbq: Pointer to driver iocb object.
640 *
641 * This function is called with no lock held to release the iocb to
642 * iocb pool.
643 **/
James Smart2e0fef82007-06-17 19:56:36 -0500644void
645lpfc_sli_release_iocbq(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
646{
647 unsigned long iflags;
648
649 /*
650 * Clean all volatile data fields, preserve iotag and node struct.
651 */
652 spin_lock_irqsave(&phba->hbalock, iflags);
653 __lpfc_sli_release_iocbq(phba, iocbq);
654 spin_unlock_irqrestore(&phba->hbalock, iflags);
655}
656
James Smarte59058c2008-08-24 21:49:00 -0400657/**
James Smarta257bf92009-04-06 18:48:10 -0400658 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
659 * @phba: Pointer to HBA context object.
660 * @iocblist: List of IOCBs.
661 * @ulpstatus: ULP status in IOCB command field.
662 * @ulpWord4: ULP word-4 in IOCB command field.
663 *
664 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
665 * on the list by invoking the complete callback function associated with the
666 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
667 * fields.
668 **/
669void
670lpfc_sli_cancel_iocbs(struct lpfc_hba *phba, struct list_head *iocblist,
671 uint32_t ulpstatus, uint32_t ulpWord4)
672{
673 struct lpfc_iocbq *piocb;
674
675 while (!list_empty(iocblist)) {
676 list_remove_head(iocblist, piocb, struct lpfc_iocbq, list);
677
678 if (!piocb->iocb_cmpl)
679 lpfc_sli_release_iocbq(phba, piocb);
680 else {
681 piocb->iocb.ulpStatus = ulpstatus;
682 piocb->iocb.un.ulpWord[4] = ulpWord4;
683 (piocb->iocb_cmpl) (phba, piocb, piocb);
684 }
685 }
686 return;
687}
688
689/**
James Smart3621a712009-04-06 18:47:14 -0400690 * lpfc_sli_iocb_cmd_type - Get the iocb type
691 * @iocb_cmnd: iocb command code.
James Smarte59058c2008-08-24 21:49:00 -0400692 *
693 * This function is called by ring event handler function to get the iocb type.
694 * This function translates the iocb command to an iocb command type used to
695 * decide the final disposition of each completed IOCB.
696 * The function returns
697 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
698 * LPFC_SOL_IOCB if it is a solicited iocb completion
699 * LPFC_ABORT_IOCB if it is an abort iocb
700 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
701 *
702 * The caller is not required to hold any lock.
703 **/
dea31012005-04-17 16:05:31 -0500704static lpfc_iocb_type
705lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd)
706{
707 lpfc_iocb_type type = LPFC_UNKNOWN_IOCB;
708
709 if (iocb_cmnd > CMD_MAX_IOCB_CMD)
710 return 0;
711
712 switch (iocb_cmnd) {
713 case CMD_XMIT_SEQUENCE_CR:
714 case CMD_XMIT_SEQUENCE_CX:
715 case CMD_XMIT_BCAST_CN:
716 case CMD_XMIT_BCAST_CX:
717 case CMD_ELS_REQUEST_CR:
718 case CMD_ELS_REQUEST_CX:
719 case CMD_CREATE_XRI_CR:
720 case CMD_CREATE_XRI_CX:
721 case CMD_GET_RPI_CN:
722 case CMD_XMIT_ELS_RSP_CX:
723 case CMD_GET_RPI_CR:
724 case CMD_FCP_IWRITE_CR:
725 case CMD_FCP_IWRITE_CX:
726 case CMD_FCP_IREAD_CR:
727 case CMD_FCP_IREAD_CX:
728 case CMD_FCP_ICMND_CR:
729 case CMD_FCP_ICMND_CX:
James Smartf5603512006-12-02 13:35:43 -0500730 case CMD_FCP_TSEND_CX:
731 case CMD_FCP_TRSP_CX:
732 case CMD_FCP_TRECEIVE_CX:
733 case CMD_FCP_AUTO_TRSP_CX:
dea31012005-04-17 16:05:31 -0500734 case CMD_ADAPTER_MSG:
735 case CMD_ADAPTER_DUMP:
736 case CMD_XMIT_SEQUENCE64_CR:
737 case CMD_XMIT_SEQUENCE64_CX:
738 case CMD_XMIT_BCAST64_CN:
739 case CMD_XMIT_BCAST64_CX:
740 case CMD_ELS_REQUEST64_CR:
741 case CMD_ELS_REQUEST64_CX:
742 case CMD_FCP_IWRITE64_CR:
743 case CMD_FCP_IWRITE64_CX:
744 case CMD_FCP_IREAD64_CR:
745 case CMD_FCP_IREAD64_CX:
746 case CMD_FCP_ICMND64_CR:
747 case CMD_FCP_ICMND64_CX:
James Smartf5603512006-12-02 13:35:43 -0500748 case CMD_FCP_TSEND64_CX:
749 case CMD_FCP_TRSP64_CX:
750 case CMD_FCP_TRECEIVE64_CX:
dea31012005-04-17 16:05:31 -0500751 case CMD_GEN_REQUEST64_CR:
752 case CMD_GEN_REQUEST64_CX:
753 case CMD_XMIT_ELS_RSP64_CX:
James Smartda0436e2009-05-22 14:51:39 -0400754 case DSSCMD_IWRITE64_CR:
755 case DSSCMD_IWRITE64_CX:
756 case DSSCMD_IREAD64_CR:
757 case DSSCMD_IREAD64_CX:
758 case DSSCMD_INVALIDATE_DEK:
759 case DSSCMD_SET_KEK:
760 case DSSCMD_GET_KEK_ID:
761 case DSSCMD_GEN_XFER:
dea31012005-04-17 16:05:31 -0500762 type = LPFC_SOL_IOCB;
763 break;
764 case CMD_ABORT_XRI_CN:
765 case CMD_ABORT_XRI_CX:
766 case CMD_CLOSE_XRI_CN:
767 case CMD_CLOSE_XRI_CX:
768 case CMD_XRI_ABORTED_CX:
769 case CMD_ABORT_MXRI64_CN:
770 type = LPFC_ABORT_IOCB;
771 break;
772 case CMD_RCV_SEQUENCE_CX:
773 case CMD_RCV_ELS_REQ_CX:
774 case CMD_RCV_SEQUENCE64_CX:
775 case CMD_RCV_ELS_REQ64_CX:
James Smart57127f12007-10-27 13:37:05 -0400776 case CMD_ASYNC_STATUS:
James Smarted957682007-06-17 19:56:37 -0500777 case CMD_IOCB_RCV_SEQ64_CX:
778 case CMD_IOCB_RCV_ELS64_CX:
779 case CMD_IOCB_RCV_CONT64_CX:
James Smart3163f722008-02-08 18:50:25 -0500780 case CMD_IOCB_RET_XRI64_CX:
dea31012005-04-17 16:05:31 -0500781 type = LPFC_UNSOL_IOCB;
782 break;
James Smart3163f722008-02-08 18:50:25 -0500783 case CMD_IOCB_XMIT_MSEQ64_CR:
784 case CMD_IOCB_XMIT_MSEQ64_CX:
785 case CMD_IOCB_RCV_SEQ_LIST64_CX:
786 case CMD_IOCB_RCV_ELS_LIST64_CX:
787 case CMD_IOCB_CLOSE_EXTENDED_CN:
788 case CMD_IOCB_ABORT_EXTENDED_CN:
789 case CMD_IOCB_RET_HBQE64_CN:
790 case CMD_IOCB_FCP_IBIDIR64_CR:
791 case CMD_IOCB_FCP_IBIDIR64_CX:
792 case CMD_IOCB_FCP_ITASKMGT64_CX:
793 case CMD_IOCB_LOGENTRY_CN:
794 case CMD_IOCB_LOGENTRY_ASYNC_CN:
795 printk("%s - Unhandled SLI-3 Command x%x\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -0700796 __func__, iocb_cmnd);
James Smart3163f722008-02-08 18:50:25 -0500797 type = LPFC_UNKNOWN_IOCB;
798 break;
dea31012005-04-17 16:05:31 -0500799 default:
800 type = LPFC_UNKNOWN_IOCB;
801 break;
802 }
803
804 return type;
805}
806
James Smarte59058c2008-08-24 21:49:00 -0400807/**
James Smart3621a712009-04-06 18:47:14 -0400808 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
James Smarte59058c2008-08-24 21:49:00 -0400809 * @phba: Pointer to HBA context object.
810 *
811 * This function is called from SLI initialization code
812 * to configure every ring of the HBA's SLI interface. The
813 * caller is not required to hold any lock. This function issues
814 * a config_ring mailbox command for each ring.
815 * This function returns zero if successful else returns a negative
816 * error code.
817 **/
dea31012005-04-17 16:05:31 -0500818static int
James Smarted957682007-06-17 19:56:37 -0500819lpfc_sli_ring_map(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -0500820{
821 struct lpfc_sli *psli = &phba->sli;
James Smarted957682007-06-17 19:56:37 -0500822 LPFC_MBOXQ_t *pmb;
823 MAILBOX_t *pmbox;
824 int i, rc, ret = 0;
dea31012005-04-17 16:05:31 -0500825
James Smarted957682007-06-17 19:56:37 -0500826 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
827 if (!pmb)
828 return -ENOMEM;
James Smart04c68492009-05-22 14:52:52 -0400829 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -0500830 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -0500831 for (i = 0; i < psli->num_rings; i++) {
dea31012005-04-17 16:05:31 -0500832 lpfc_config_ring(phba, i, pmb);
833 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
834 if (rc != MBX_SUCCESS) {
James Smart92d7f7b2007-06-17 19:56:38 -0500835 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -0400836 "0446 Adapter failed to init (%d), "
dea31012005-04-17 16:05:31 -0500837 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
838 "ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400839 rc, pmbox->mbxCommand,
840 pmbox->mbxStatus, i);
James Smart2e0fef82007-06-17 19:56:36 -0500841 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -0500842 ret = -ENXIO;
843 break;
dea31012005-04-17 16:05:31 -0500844 }
845 }
James Smarted957682007-06-17 19:56:37 -0500846 mempool_free(pmb, phba->mbox_mem_pool);
847 return ret;
dea31012005-04-17 16:05:31 -0500848}
849
James Smarte59058c2008-08-24 21:49:00 -0400850/**
James Smart3621a712009-04-06 18:47:14 -0400851 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
James Smarte59058c2008-08-24 21:49:00 -0400852 * @phba: Pointer to HBA context object.
853 * @pring: Pointer to driver SLI ring object.
854 * @piocb: Pointer to the driver iocb object.
855 *
856 * This function is called with hbalock held. The function adds the
857 * new iocb to txcmplq of the given ring. This function always returns
858 * 0. If this function is called for ELS ring, this function checks if
859 * there is a vport associated with the ELS command. This function also
860 * starts els_tmofunc timer if this is an ELS command.
861 **/
dea31012005-04-17 16:05:31 -0500862static int
James Smart2e0fef82007-06-17 19:56:36 -0500863lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
864 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -0500865{
dea31012005-04-17 16:05:31 -0500866 list_add_tail(&piocb->list, &pring->txcmplq);
867 pring->txcmplq_cnt++;
James Smart92d7f7b2007-06-17 19:56:38 -0500868 if ((unlikely(pring->ringno == LPFC_ELS_RING)) &&
869 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
870 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
871 if (!piocb->vport)
872 BUG();
873 else
874 mod_timer(&piocb->vport->els_tmofunc,
875 jiffies + HZ * (phba->fc_ratov << 1));
876 }
877
dea31012005-04-17 16:05:31 -0500878
James Smart2e0fef82007-06-17 19:56:36 -0500879 return 0;
dea31012005-04-17 16:05:31 -0500880}
881
James Smarte59058c2008-08-24 21:49:00 -0400882/**
James Smart3621a712009-04-06 18:47:14 -0400883 * lpfc_sli_ringtx_get - Get first element of the txq
James Smarte59058c2008-08-24 21:49:00 -0400884 * @phba: Pointer to HBA context object.
885 * @pring: Pointer to driver SLI ring object.
886 *
887 * This function is called with hbalock held to get next
888 * iocb in txq of the given ring. If there is any iocb in
889 * the txq, the function returns first iocb in the list after
890 * removing the iocb from the list, else it returns NULL.
891 **/
dea31012005-04-17 16:05:31 -0500892static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -0500893lpfc_sli_ringtx_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -0500894{
dea31012005-04-17 16:05:31 -0500895 struct lpfc_iocbq *cmd_iocb;
896
James Smart858c9f62007-06-17 19:56:39 -0500897 list_remove_head((&pring->txq), cmd_iocb, struct lpfc_iocbq, list);
898 if (cmd_iocb != NULL)
dea31012005-04-17 16:05:31 -0500899 pring->txq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -0500900 return cmd_iocb;
dea31012005-04-17 16:05:31 -0500901}
902
James Smarte59058c2008-08-24 21:49:00 -0400903/**
James Smart3621a712009-04-06 18:47:14 -0400904 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
James Smarte59058c2008-08-24 21:49:00 -0400905 * @phba: Pointer to HBA context object.
906 * @pring: Pointer to driver SLI ring object.
907 *
908 * This function is called with hbalock held and the caller must post the
909 * iocb without releasing the lock. If the caller releases the lock,
910 * iocb slot returned by the function is not guaranteed to be available.
911 * The function returns pointer to the next available iocb slot if there
912 * is available slot in the ring, else it returns NULL.
913 * If the get index of the ring is ahead of the put index, the function
914 * will post an error attention event to the worker thread to take the
915 * HBA to offline state.
916 **/
dea31012005-04-17 16:05:31 -0500917static IOCB_t *
918lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
919{
James Smart34b02dc2008-08-24 21:49:55 -0400920 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -0500921 uint32_t max_cmd_idx = pring->numCiocb;
dea31012005-04-17 16:05:31 -0500922 if ((pring->next_cmdidx == pring->cmdidx) &&
923 (++pring->next_cmdidx >= max_cmd_idx))
924 pring->next_cmdidx = 0;
925
926 if (unlikely(pring->local_getidx == pring->next_cmdidx)) {
927
928 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
929
930 if (unlikely(pring->local_getidx >= max_cmd_idx)) {
931 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -0400932 "0315 Ring %d issue: portCmdGet %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +0200933 "is bigger than cmd ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -0400934 pring->ringno,
dea31012005-04-17 16:05:31 -0500935 pring->local_getidx, max_cmd_idx);
936
James Smart2e0fef82007-06-17 19:56:36 -0500937 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -0500938 /*
939 * All error attention handlers are posted to
940 * worker thread
941 */
942 phba->work_ha |= HA_ERATT;
943 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -0500944
James Smart5e9d9b82008-06-14 22:52:53 -0400945 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -0500946
947 return NULL;
948 }
949
950 if (pring->local_getidx == pring->next_cmdidx)
951 return NULL;
952 }
953
James Smarted957682007-06-17 19:56:37 -0500954 return lpfc_cmd_iocb(phba, pring);
dea31012005-04-17 16:05:31 -0500955}
956
James Smarte59058c2008-08-24 21:49:00 -0400957/**
James Smart3621a712009-04-06 18:47:14 -0400958 * lpfc_sli_next_iotag - Get an iotag for the iocb
James Smarte59058c2008-08-24 21:49:00 -0400959 * @phba: Pointer to HBA context object.
960 * @iocbq: Pointer to driver iocb object.
961 *
962 * This function gets an iotag for the iocb. If there is no unused iotag and
963 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
964 * array and assigns a new iotag.
965 * The function returns the allocated iotag if successful, else returns zero.
966 * Zero is not a valid iotag.
967 * The caller is not required to hold any lock.
968 **/
James Bottomley604a3e32005-10-29 10:28:33 -0500969uint16_t
James Smart2e0fef82007-06-17 19:56:36 -0500970lpfc_sli_next_iotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
dea31012005-04-17 16:05:31 -0500971{
James Smart2e0fef82007-06-17 19:56:36 -0500972 struct lpfc_iocbq **new_arr;
973 struct lpfc_iocbq **old_arr;
James Bottomley604a3e32005-10-29 10:28:33 -0500974 size_t new_len;
975 struct lpfc_sli *psli = &phba->sli;
976 uint16_t iotag;
dea31012005-04-17 16:05:31 -0500977
James Smart2e0fef82007-06-17 19:56:36 -0500978 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500979 iotag = psli->last_iotag;
980 if(++iotag < psli->iocbq_lookup_len) {
981 psli->last_iotag = iotag;
982 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -0500983 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500984 iocbq->iotag = iotag;
985 return iotag;
James Smart2e0fef82007-06-17 19:56:36 -0500986 } else if (psli->iocbq_lookup_len < (0xffff
James Bottomley604a3e32005-10-29 10:28:33 -0500987 - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
988 new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
James Smart2e0fef82007-06-17 19:56:36 -0500989 spin_unlock_irq(&phba->hbalock);
990 new_arr = kzalloc(new_len * sizeof (struct lpfc_iocbq *),
James Bottomley604a3e32005-10-29 10:28:33 -0500991 GFP_KERNEL);
992 if (new_arr) {
James Smart2e0fef82007-06-17 19:56:36 -0500993 spin_lock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -0500994 old_arr = psli->iocbq_lookup;
995 if (new_len <= psli->iocbq_lookup_len) {
996 /* highly unprobable case */
997 kfree(new_arr);
998 iotag = psli->last_iotag;
999 if(++iotag < psli->iocbq_lookup_len) {
1000 psli->last_iotag = iotag;
1001 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001002 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001003 iocbq->iotag = iotag;
1004 return iotag;
1005 }
James Smart2e0fef82007-06-17 19:56:36 -05001006 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001007 return 0;
1008 }
1009 if (psli->iocbq_lookup)
1010 memcpy(new_arr, old_arr,
1011 ((psli->last_iotag + 1) *
James Smart311464e2007-08-02 11:10:37 -04001012 sizeof (struct lpfc_iocbq *)));
James Bottomley604a3e32005-10-29 10:28:33 -05001013 psli->iocbq_lookup = new_arr;
1014 psli->iocbq_lookup_len = new_len;
1015 psli->last_iotag = iotag;
1016 psli->iocbq_lookup[iotag] = iocbq;
James Smart2e0fef82007-06-17 19:56:36 -05001017 spin_unlock_irq(&phba->hbalock);
James Bottomley604a3e32005-10-29 10:28:33 -05001018 iocbq->iotag = iotag;
1019 kfree(old_arr);
1020 return iotag;
1021 }
James Smart8f6d98d2006-08-01 07:34:00 -04001022 } else
James Smart2e0fef82007-06-17 19:56:36 -05001023 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05001024
James Bottomley604a3e32005-10-29 10:28:33 -05001025 lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001026 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1027 psli->last_iotag);
dea31012005-04-17 16:05:31 -05001028
James Bottomley604a3e32005-10-29 10:28:33 -05001029 return 0;
dea31012005-04-17 16:05:31 -05001030}
1031
James Smarte59058c2008-08-24 21:49:00 -04001032/**
James Smart3621a712009-04-06 18:47:14 -04001033 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
James Smarte59058c2008-08-24 21:49:00 -04001034 * @phba: Pointer to HBA context object.
1035 * @pring: Pointer to driver SLI ring object.
1036 * @iocb: Pointer to iocb slot in the ring.
1037 * @nextiocb: Pointer to driver iocb object which need to be
1038 * posted to firmware.
1039 *
1040 * This function is called with hbalock held to post a new iocb to
1041 * the firmware. This function copies the new iocb to ring iocb slot and
1042 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1043 * a completion call back for this iocb else the function will free the
1044 * iocb object.
1045 **/
dea31012005-04-17 16:05:31 -05001046static void
1047lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1048 IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
1049{
1050 /*
James Bottomley604a3e32005-10-29 10:28:33 -05001051 * Set up an iotag
dea31012005-04-17 16:05:31 -05001052 */
James Bottomley604a3e32005-10-29 10:28:33 -05001053 nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
dea31012005-04-17 16:05:31 -05001054
James Smarte2a0a9d2008-12-04 22:40:02 -05001055
James Smarta58cbd52007-08-02 11:09:43 -04001056 if (pring->ringno == LPFC_ELS_RING) {
1057 lpfc_debugfs_slow_ring_trc(phba,
1058 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1059 *(((uint32_t *) &nextiocb->iocb) + 4),
1060 *(((uint32_t *) &nextiocb->iocb) + 6),
1061 *(((uint32_t *) &nextiocb->iocb) + 7));
1062 }
1063
dea31012005-04-17 16:05:31 -05001064 /*
1065 * Issue iocb command to adapter
1066 */
James Smart92d7f7b2007-06-17 19:56:38 -05001067 lpfc_sli_pcimem_bcopy(&nextiocb->iocb, iocb, phba->iocb_cmd_size);
dea31012005-04-17 16:05:31 -05001068 wmb();
1069 pring->stats.iocb_cmd++;
1070
1071 /*
1072 * If there is no completion routine to call, we can release the
1073 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1074 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1075 */
1076 if (nextiocb->iocb_cmpl)
1077 lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
James Bottomley604a3e32005-10-29 10:28:33 -05001078 else
James Smart2e0fef82007-06-17 19:56:36 -05001079 __lpfc_sli_release_iocbq(phba, nextiocb);
dea31012005-04-17 16:05:31 -05001080
1081 /*
1082 * Let the HBA know what IOCB slot will be the next one the
1083 * driver will put a command into.
1084 */
1085 pring->cmdidx = pring->next_cmdidx;
James Smarted957682007-06-17 19:56:37 -05001086 writel(pring->cmdidx, &phba->host_gp[pring->ringno].cmdPutInx);
dea31012005-04-17 16:05:31 -05001087}
1088
James Smarte59058c2008-08-24 21:49:00 -04001089/**
James Smart3621a712009-04-06 18:47:14 -04001090 * lpfc_sli_update_full_ring - Update the chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001091 * @phba: Pointer to HBA context object.
1092 * @pring: Pointer to driver SLI ring object.
1093 *
1094 * The caller is not required to hold any lock for calling this function.
1095 * This function updates the chip attention bits for the ring to inform firmware
1096 * that there are pending work to be done for this ring and requests an
1097 * interrupt when there is space available in the ring. This function is
1098 * called when the driver is unable to post more iocbs to the ring due
1099 * to unavailability of space in the ring.
1100 **/
dea31012005-04-17 16:05:31 -05001101static void
James Smart2e0fef82007-06-17 19:56:36 -05001102lpfc_sli_update_full_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001103{
1104 int ringno = pring->ringno;
1105
1106 pring->flag |= LPFC_CALL_RING_AVAILABLE;
1107
1108 wmb();
1109
1110 /*
1111 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1112 * The HBA will tell us when an IOCB entry is available.
1113 */
1114 writel((CA_R0ATT|CA_R0CE_REQ) << (ringno*4), phba->CAregaddr);
1115 readl(phba->CAregaddr); /* flush */
1116
1117 pring->stats.iocb_cmd_full++;
1118}
1119
James Smarte59058c2008-08-24 21:49:00 -04001120/**
James Smart3621a712009-04-06 18:47:14 -04001121 * lpfc_sli_update_ring - Update chip attention register
James Smarte59058c2008-08-24 21:49:00 -04001122 * @phba: Pointer to HBA context object.
1123 * @pring: Pointer to driver SLI ring object.
1124 *
1125 * This function updates the chip attention register bit for the
1126 * given ring to inform HBA that there is more work to be done
1127 * in this ring. The caller is not required to hold any lock.
1128 **/
dea31012005-04-17 16:05:31 -05001129static void
James Smart2e0fef82007-06-17 19:56:36 -05001130lpfc_sli_update_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001131{
1132 int ringno = pring->ringno;
1133
1134 /*
1135 * Tell the HBA that there is work to do in this ring.
1136 */
James Smart34b02dc2008-08-24 21:49:55 -04001137 if (!(phba->sli3_options & LPFC_SLI3_CRP_ENABLED)) {
1138 wmb();
1139 writel(CA_R0ATT << (ringno * 4), phba->CAregaddr);
1140 readl(phba->CAregaddr); /* flush */
1141 }
dea31012005-04-17 16:05:31 -05001142}
1143
James Smarte59058c2008-08-24 21:49:00 -04001144/**
James Smart3621a712009-04-06 18:47:14 -04001145 * lpfc_sli_resume_iocb - Process iocbs in the txq
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 is called with hbalock held to post pending iocbs
1150 * in the txq to the firmware. This function is called when driver
1151 * detects space available in the ring.
1152 **/
dea31012005-04-17 16:05:31 -05001153static void
James Smart2e0fef82007-06-17 19:56:36 -05001154lpfc_sli_resume_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
dea31012005-04-17 16:05:31 -05001155{
1156 IOCB_t *iocb;
1157 struct lpfc_iocbq *nextiocb;
1158
1159 /*
1160 * Check to see if:
1161 * (a) there is anything on the txq to send
1162 * (b) link is up
1163 * (c) link attention events can be processed (fcp ring only)
1164 * (d) IOCB processing is not blocked by the outstanding mbox command.
1165 */
1166 if (pring->txq_cnt &&
James Smart2e0fef82007-06-17 19:56:36 -05001167 lpfc_is_link_up(phba) &&
dea31012005-04-17 16:05:31 -05001168 (pring->ringno != phba->sli.fcp_ring ||
James Smart0b727fe2007-10-27 13:37:25 -04001169 phba->sli.sli_flag & LPFC_PROCESS_LA)) {
dea31012005-04-17 16:05:31 -05001170
1171 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
1172 (nextiocb = lpfc_sli_ringtx_get(phba, pring)))
1173 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
1174
1175 if (iocb)
1176 lpfc_sli_update_ring(phba, pring);
1177 else
1178 lpfc_sli_update_full_ring(phba, pring);
1179 }
1180
1181 return;
1182}
1183
James Smarte59058c2008-08-24 21:49:00 -04001184/**
James Smart3621a712009-04-06 18:47:14 -04001185 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001186 * @phba: Pointer to HBA context object.
1187 * @hbqno: HBQ number.
1188 *
1189 * This function is called with hbalock held to get the next
1190 * available slot for the given HBQ. If there is free slot
1191 * available for the HBQ it will return pointer to the next available
1192 * HBQ entry else it will return NULL.
1193 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001194static struct lpfc_hbq_entry *
James Smarted957682007-06-17 19:56:37 -05001195lpfc_sli_next_hbq_slot(struct lpfc_hba *phba, uint32_t hbqno)
1196{
1197 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1198
1199 if (hbqp->next_hbqPutIdx == hbqp->hbqPutIdx &&
1200 ++hbqp->next_hbqPutIdx >= hbqp->entry_count)
1201 hbqp->next_hbqPutIdx = 0;
1202
1203 if (unlikely(hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)) {
James Smart92d7f7b2007-06-17 19:56:38 -05001204 uint32_t raw_index = phba->hbq_get[hbqno];
James Smarted957682007-06-17 19:56:37 -05001205 uint32_t getidx = le32_to_cpu(raw_index);
1206
1207 hbqp->local_hbqGetIdx = getidx;
1208
1209 if (unlikely(hbqp->local_hbqGetIdx >= hbqp->entry_count)) {
1210 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05001211 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001212 "1802 HBQ %d: local_hbqGetIdx "
James Smarted957682007-06-17 19:56:37 -05001213 "%u is > than hbqp->entry_count %u\n",
James Smarte8b62012007-08-02 11:10:09 -04001214 hbqno, hbqp->local_hbqGetIdx,
James Smarted957682007-06-17 19:56:37 -05001215 hbqp->entry_count);
1216
1217 phba->link_state = LPFC_HBA_ERROR;
1218 return NULL;
1219 }
1220
1221 if (hbqp->local_hbqGetIdx == hbqp->next_hbqPutIdx)
1222 return NULL;
1223 }
1224
James Smart51ef4c22007-08-02 11:10:31 -04001225 return (struct lpfc_hbq_entry *) phba->hbqs[hbqno].hbq_virt +
1226 hbqp->hbqPutIdx;
James Smarted957682007-06-17 19:56:37 -05001227}
1228
James Smarte59058c2008-08-24 21:49:00 -04001229/**
James Smart3621a712009-04-06 18:47:14 -04001230 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
James Smarte59058c2008-08-24 21:49:00 -04001231 * @phba: Pointer to HBA context object.
1232 *
1233 * This function is called with no lock held to free all the
1234 * hbq buffers while uninitializing the SLI interface. It also
1235 * frees the HBQ buffers returned by the firmware but not yet
1236 * processed by the upper layers.
1237 **/
James Smarted957682007-06-17 19:56:37 -05001238void
1239lpfc_sli_hbqbuf_free_all(struct lpfc_hba *phba)
1240{
James Smart92d7f7b2007-06-17 19:56:38 -05001241 struct lpfc_dmabuf *dmabuf, *next_dmabuf;
1242 struct hbq_dmabuf *hbq_buf;
James Smart3163f722008-02-08 18:50:25 -05001243 unsigned long flags;
James Smart51ef4c22007-08-02 11:10:31 -04001244 int i, hbq_count;
James Smart3163f722008-02-08 18:50:25 -05001245 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001246
James Smart51ef4c22007-08-02 11:10:31 -04001247 hbq_count = lpfc_sli_hbq_count();
James Smarted957682007-06-17 19:56:37 -05001248 /* Return all memory used by all HBQs */
James Smart3163f722008-02-08 18:50:25 -05001249 spin_lock_irqsave(&phba->hbalock, flags);
James Smart51ef4c22007-08-02 11:10:31 -04001250 for (i = 0; i < hbq_count; ++i) {
1251 list_for_each_entry_safe(dmabuf, next_dmabuf,
1252 &phba->hbqs[i].hbq_buffer_list, list) {
1253 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1254 list_del(&hbq_buf->dbuf.list);
1255 (phba->hbqs[i].hbq_free_buffer)(phba, hbq_buf);
1256 }
James Smarta8adb832007-10-27 13:37:53 -04001257 phba->hbqs[i].buffer_count = 0;
James Smarted957682007-06-17 19:56:37 -05001258 }
James Smart3163f722008-02-08 18:50:25 -05001259 /* Return all HBQ buffer that are in-fly */
James Smart3772a992009-05-22 14:50:54 -04001260 list_for_each_entry_safe(dmabuf, next_dmabuf, &phba->rb_pend_list,
1261 list) {
James Smart3163f722008-02-08 18:50:25 -05001262 hbq_buf = container_of(dmabuf, struct hbq_dmabuf, dbuf);
1263 list_del(&hbq_buf->dbuf.list);
1264 if (hbq_buf->tag == -1) {
1265 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1266 (phba, hbq_buf);
1267 } else {
1268 hbqno = hbq_buf->tag >> 16;
1269 if (hbqno >= LPFC_MAX_HBQS)
1270 (phba->hbqs[LPFC_ELS_HBQ].hbq_free_buffer)
1271 (phba, hbq_buf);
1272 else
1273 (phba->hbqs[hbqno].hbq_free_buffer)(phba,
1274 hbq_buf);
1275 }
1276 }
1277
1278 /* Mark the HBQs not in use */
1279 phba->hbq_in_use = 0;
1280 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smarted957682007-06-17 19:56:37 -05001281}
1282
James Smarte59058c2008-08-24 21:49:00 -04001283/**
James Smart3621a712009-04-06 18:47:14 -04001284 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001285 * @phba: Pointer to HBA context object.
1286 * @hbqno: HBQ number.
1287 * @hbq_buf: Pointer to HBQ buffer.
1288 *
1289 * This function is called with the hbalock held to post a
1290 * hbq buffer to the firmware. If the function finds an empty
1291 * slot in the HBQ, it will post the buffer. The function will return
1292 * pointer to the hbq entry if it successfully post the buffer
1293 * else it will return NULL.
1294 **/
James Smart3772a992009-05-22 14:50:54 -04001295static int
James Smarted957682007-06-17 19:56:37 -05001296lpfc_sli_hbq_to_firmware(struct lpfc_hba *phba, uint32_t hbqno,
James Smart92d7f7b2007-06-17 19:56:38 -05001297 struct hbq_dmabuf *hbq_buf)
James Smarted957682007-06-17 19:56:37 -05001298{
James Smart3772a992009-05-22 14:50:54 -04001299 return phba->lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buf);
1300}
1301
1302/**
1303 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1304 * @phba: Pointer to HBA context object.
1305 * @hbqno: HBQ number.
1306 * @hbq_buf: Pointer to HBQ buffer.
1307 *
1308 * This function is called with the hbalock held to post a hbq buffer to the
1309 * firmware. If the function finds an empty slot in the HBQ, it will post the
1310 * buffer and place it on the hbq_buffer_list. The function will return zero if
1311 * it successfully post the buffer else it will return an error.
1312 **/
1313static int
1314lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba *phba, uint32_t hbqno,
1315 struct hbq_dmabuf *hbq_buf)
1316{
James Smarted957682007-06-17 19:56:37 -05001317 struct lpfc_hbq_entry *hbqe;
James Smart92d7f7b2007-06-17 19:56:38 -05001318 dma_addr_t physaddr = hbq_buf->dbuf.phys;
James Smarted957682007-06-17 19:56:37 -05001319
1320 /* Get next HBQ entry slot to use */
1321 hbqe = lpfc_sli_next_hbq_slot(phba, hbqno);
1322 if (hbqe) {
1323 struct hbq_s *hbqp = &phba->hbqs[hbqno];
1324
James Smart92d7f7b2007-06-17 19:56:38 -05001325 hbqe->bde.addrHigh = le32_to_cpu(putPaddrHigh(physaddr));
1326 hbqe->bde.addrLow = le32_to_cpu(putPaddrLow(physaddr));
James Smart51ef4c22007-08-02 11:10:31 -04001327 hbqe->bde.tus.f.bdeSize = hbq_buf->size;
James Smarted957682007-06-17 19:56:37 -05001328 hbqe->bde.tus.f.bdeFlags = 0;
James Smart92d7f7b2007-06-17 19:56:38 -05001329 hbqe->bde.tus.w = le32_to_cpu(hbqe->bde.tus.w);
1330 hbqe->buffer_tag = le32_to_cpu(hbq_buf->tag);
1331 /* Sync SLIM */
James Smarted957682007-06-17 19:56:37 -05001332 hbqp->hbqPutIdx = hbqp->next_hbqPutIdx;
1333 writel(hbqp->hbqPutIdx, phba->hbq_put + hbqno);
James Smart92d7f7b2007-06-17 19:56:38 -05001334 /* flush */
James Smarted957682007-06-17 19:56:37 -05001335 readl(phba->hbq_put + hbqno);
James Smart51ef4c22007-08-02 11:10:31 -04001336 list_add_tail(&hbq_buf->dbuf.list, &hbqp->hbq_buffer_list);
James Smart3772a992009-05-22 14:50:54 -04001337 return 0;
1338 } else
1339 return -ENOMEM;
James Smarted957682007-06-17 19:56:37 -05001340}
1341
James Smart4f774512009-05-22 14:52:35 -04001342/**
1343 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1344 * @phba: Pointer to HBA context object.
1345 * @hbqno: HBQ number.
1346 * @hbq_buf: Pointer to HBQ buffer.
1347 *
1348 * This function is called with the hbalock held to post an RQE to the SLI4
1349 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1350 * the hbq_buffer_list and return zero, otherwise it will return an error.
1351 **/
1352static int
1353lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba *phba, uint32_t hbqno,
1354 struct hbq_dmabuf *hbq_buf)
1355{
1356 int rc;
1357 struct lpfc_rqe hrqe;
1358 struct lpfc_rqe drqe;
1359
1360 hrqe.address_lo = putPaddrLow(hbq_buf->hbuf.phys);
1361 hrqe.address_hi = putPaddrHigh(hbq_buf->hbuf.phys);
1362 drqe.address_lo = putPaddrLow(hbq_buf->dbuf.phys);
1363 drqe.address_hi = putPaddrHigh(hbq_buf->dbuf.phys);
1364 rc = lpfc_sli4_rq_put(phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq,
1365 &hrqe, &drqe);
1366 if (rc < 0)
1367 return rc;
1368 hbq_buf->tag = rc;
1369 list_add_tail(&hbq_buf->dbuf.list, &phba->hbqs[hbqno].hbq_buffer_list);
1370 return 0;
1371}
1372
James Smarte59058c2008-08-24 21:49:00 -04001373/* HBQ for ELS and CT traffic. */
James Smart92d7f7b2007-06-17 19:56:38 -05001374static struct lpfc_hbq_init lpfc_els_hbq = {
1375 .rn = 1,
1376 .entry_count = 200,
1377 .mask_count = 0,
1378 .profile = 0,
James Smart51ef4c22007-08-02 11:10:31 -04001379 .ring_mask = (1 << LPFC_ELS_RING),
James Smart92d7f7b2007-06-17 19:56:38 -05001380 .buffer_count = 0,
James Smarta257bf92009-04-06 18:48:10 -04001381 .init_count = 40,
1382 .add_count = 40,
James Smart92d7f7b2007-06-17 19:56:38 -05001383};
James Smarted957682007-06-17 19:56:37 -05001384
James Smarte59058c2008-08-24 21:49:00 -04001385/* HBQ for the extra ring if needed */
James Smart51ef4c22007-08-02 11:10:31 -04001386static struct lpfc_hbq_init lpfc_extra_hbq = {
1387 .rn = 1,
1388 .entry_count = 200,
1389 .mask_count = 0,
1390 .profile = 0,
1391 .ring_mask = (1 << LPFC_EXTRA_RING),
1392 .buffer_count = 0,
1393 .init_count = 0,
1394 .add_count = 5,
1395};
1396
James Smarte59058c2008-08-24 21:49:00 -04001397/* Array of HBQs */
James Smart78b2d852007-08-02 11:10:21 -04001398struct lpfc_hbq_init *lpfc_hbq_defs[] = {
James Smart92d7f7b2007-06-17 19:56:38 -05001399 &lpfc_els_hbq,
James Smart51ef4c22007-08-02 11:10:31 -04001400 &lpfc_extra_hbq,
James Smart92d7f7b2007-06-17 19:56:38 -05001401};
1402
James Smarte59058c2008-08-24 21:49:00 -04001403/**
James Smart3621a712009-04-06 18:47:14 -04001404 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
James Smarte59058c2008-08-24 21:49:00 -04001405 * @phba: Pointer to HBA context object.
1406 * @hbqno: HBQ number.
1407 * @count: Number of HBQ buffers to be posted.
1408 *
James Smartd7c255b2008-08-24 21:50:00 -04001409 * This function is called with no lock held to post more hbq buffers to the
1410 * given HBQ. The function returns the number of HBQ buffers successfully
1411 * posted.
James Smarte59058c2008-08-24 21:49:00 -04001412 **/
James Smart311464e2007-08-02 11:10:37 -04001413static int
James Smart92d7f7b2007-06-17 19:56:38 -05001414lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba *phba, uint32_t hbqno, uint32_t count)
1415{
James Smartd7c255b2008-08-24 21:50:00 -04001416 uint32_t i, posted = 0;
James Smart3163f722008-02-08 18:50:25 -05001417 unsigned long flags;
James Smart92d7f7b2007-06-17 19:56:38 -05001418 struct hbq_dmabuf *hbq_buffer;
James Smartd7c255b2008-08-24 21:50:00 -04001419 LIST_HEAD(hbq_buf_list);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001420 if (!phba->hbqs[hbqno].hbq_alloc_buffer)
James Smart51ef4c22007-08-02 11:10:31 -04001421 return 0;
James Smart51ef4c22007-08-02 11:10:31 -04001422
James Smartd7c255b2008-08-24 21:50:00 -04001423 if ((phba->hbqs[hbqno].buffer_count + count) >
1424 lpfc_hbq_defs[hbqno]->entry_count)
1425 count = lpfc_hbq_defs[hbqno]->entry_count -
1426 phba->hbqs[hbqno].buffer_count;
1427 if (!count)
1428 return 0;
1429 /* Allocate HBQ entries */
1430 for (i = 0; i < count; i++) {
1431 hbq_buffer = (phba->hbqs[hbqno].hbq_alloc_buffer)(phba);
1432 if (!hbq_buffer)
1433 break;
1434 list_add_tail(&hbq_buffer->dbuf.list, &hbq_buf_list);
1435 }
James Smart3163f722008-02-08 18:50:25 -05001436 /* Check whether HBQ is still in use */
1437 spin_lock_irqsave(&phba->hbalock, flags);
Matthew Wilcoxeafe1df2008-02-21 05:44:33 -07001438 if (!phba->hbq_in_use)
James Smartd7c255b2008-08-24 21:50:00 -04001439 goto err;
1440 while (!list_empty(&hbq_buf_list)) {
1441 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1442 dbuf.list);
1443 hbq_buffer->tag = (phba->hbqs[hbqno].buffer_count |
1444 (hbqno << 16));
James Smart3772a992009-05-22 14:50:54 -04001445 if (!lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer)) {
James Smarta8adb832007-10-27 13:37:53 -04001446 phba->hbqs[hbqno].buffer_count++;
James Smartd7c255b2008-08-24 21:50:00 -04001447 posted++;
1448 } else
James Smart51ef4c22007-08-02 11:10:31 -04001449 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smart92d7f7b2007-06-17 19:56:38 -05001450 }
James Smart3163f722008-02-08 18:50:25 -05001451 spin_unlock_irqrestore(&phba->hbalock, flags);
James Smartd7c255b2008-08-24 21:50:00 -04001452 return posted;
1453err:
1454 spin_unlock_irqrestore(&phba->hbalock, flags);
1455 while (!list_empty(&hbq_buf_list)) {
1456 list_remove_head(&hbq_buf_list, hbq_buffer, struct hbq_dmabuf,
1457 dbuf.list);
1458 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
1459 }
James Smart92d7f7b2007-06-17 19:56:38 -05001460 return 0;
James Smarted957682007-06-17 19:56:37 -05001461}
1462
James Smarte59058c2008-08-24 21:49:00 -04001463/**
James Smart3621a712009-04-06 18:47:14 -04001464 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
James Smarte59058c2008-08-24 21:49:00 -04001465 * @phba: Pointer to HBA context object.
1466 * @qno: HBQ number.
1467 *
1468 * This function posts more buffers to the HBQ. This function
James Smartd7c255b2008-08-24 21:50:00 -04001469 * is called with no lock held. The function returns the number of HBQ entries
1470 * successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001471 **/
James Smarted957682007-06-17 19:56:37 -05001472int
James Smart92d7f7b2007-06-17 19:56:38 -05001473lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001474{
James Smart92d7f7b2007-06-17 19:56:38 -05001475 return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1476 lpfc_hbq_defs[qno]->add_count));
James Smarted957682007-06-17 19:56:37 -05001477}
1478
James Smarte59058c2008-08-24 21:49:00 -04001479/**
James Smart3621a712009-04-06 18:47:14 -04001480 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
James Smarte59058c2008-08-24 21:49:00 -04001481 * @phba: Pointer to HBA context object.
1482 * @qno: HBQ queue number.
1483 *
1484 * This function is called from SLI initialization code path with
1485 * no lock held to post initial HBQ buffers to firmware. The
James Smartd7c255b2008-08-24 21:50:00 -04001486 * function returns the number of HBQ entries successfully allocated.
James Smarte59058c2008-08-24 21:49:00 -04001487 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001488static int
James Smart92d7f7b2007-06-17 19:56:38 -05001489lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba *phba, uint32_t qno)
James Smarted957682007-06-17 19:56:37 -05001490{
James Smart92d7f7b2007-06-17 19:56:38 -05001491 return(lpfc_sli_hbqbuf_fill_hbqs(phba, qno,
1492 lpfc_hbq_defs[qno]->init_count));
James Smarted957682007-06-17 19:56:37 -05001493}
1494
James Smarte59058c2008-08-24 21:49:00 -04001495/**
James Smart3772a992009-05-22 14:50:54 -04001496 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1497 * @phba: Pointer to HBA context object.
1498 * @hbqno: HBQ number.
1499 *
1500 * This function removes the first hbq buffer on an hbq list and returns a
1501 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1502 **/
1503static struct hbq_dmabuf *
1504lpfc_sli_hbqbuf_get(struct list_head *rb_list)
1505{
1506 struct lpfc_dmabuf *d_buf;
1507
1508 list_remove_head(rb_list, d_buf, struct lpfc_dmabuf, list);
1509 if (!d_buf)
1510 return NULL;
1511 return container_of(d_buf, struct hbq_dmabuf, dbuf);
1512}
1513
1514/**
James Smart3621a712009-04-06 18:47:14 -04001515 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
James Smarte59058c2008-08-24 21:49:00 -04001516 * @phba: Pointer to HBA context object.
1517 * @tag: Tag of the hbq buffer.
1518 *
1519 * This function is called with hbalock held. This function searches
1520 * for the hbq buffer associated with the given tag in the hbq buffer
1521 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1522 * it returns NULL.
1523 **/
Adrian Bunka6ababd2007-11-05 18:07:33 +01001524static struct hbq_dmabuf *
James Smarted957682007-06-17 19:56:37 -05001525lpfc_sli_hbqbuf_find(struct lpfc_hba *phba, uint32_t tag)
1526{
James Smart92d7f7b2007-06-17 19:56:38 -05001527 struct lpfc_dmabuf *d_buf;
1528 struct hbq_dmabuf *hbq_buf;
James Smart51ef4c22007-08-02 11:10:31 -04001529 uint32_t hbqno;
James Smarted957682007-06-17 19:56:37 -05001530
James Smart51ef4c22007-08-02 11:10:31 -04001531 hbqno = tag >> 16;
Jesper Juhla0a74e452007-08-09 20:47:15 +02001532 if (hbqno >= LPFC_MAX_HBQS)
James Smart51ef4c22007-08-02 11:10:31 -04001533 return NULL;
1534
James Smart3772a992009-05-22 14:50:54 -04001535 spin_lock_irq(&phba->hbalock);
James Smart51ef4c22007-08-02 11:10:31 -04001536 list_for_each_entry(d_buf, &phba->hbqs[hbqno].hbq_buffer_list, list) {
James Smart92d7f7b2007-06-17 19:56:38 -05001537 hbq_buf = container_of(d_buf, struct hbq_dmabuf, dbuf);
James Smart51ef4c22007-08-02 11:10:31 -04001538 if (hbq_buf->tag == tag) {
James Smart3772a992009-05-22 14:50:54 -04001539 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001540 return hbq_buf;
James Smarted957682007-06-17 19:56:37 -05001541 }
1542 }
James Smart3772a992009-05-22 14:50:54 -04001543 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05001544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04001545 "1803 Bad hbq tag. Data: x%x x%x\n",
James Smarta8adb832007-10-27 13:37:53 -04001546 tag, phba->hbqs[tag >> 16].buffer_count);
James Smart92d7f7b2007-06-17 19:56:38 -05001547 return NULL;
James Smarted957682007-06-17 19:56:37 -05001548}
1549
James Smarte59058c2008-08-24 21:49:00 -04001550/**
James Smart3621a712009-04-06 18:47:14 -04001551 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
James Smarte59058c2008-08-24 21:49:00 -04001552 * @phba: Pointer to HBA context object.
1553 * @hbq_buffer: Pointer to HBQ buffer.
1554 *
1555 * This function is called with hbalock. This function gives back
1556 * the hbq buffer to firmware. If the HBQ does not have space to
1557 * post the buffer, it will free the buffer.
1558 **/
James Smarted957682007-06-17 19:56:37 -05001559void
James Smart51ef4c22007-08-02 11:10:31 -04001560lpfc_sli_free_hbq(struct lpfc_hba *phba, struct hbq_dmabuf *hbq_buffer)
James Smarted957682007-06-17 19:56:37 -05001561{
1562 uint32_t hbqno;
1563
James Smart51ef4c22007-08-02 11:10:31 -04001564 if (hbq_buffer) {
1565 hbqno = hbq_buffer->tag >> 16;
James Smart3772a992009-05-22 14:50:54 -04001566 if (lpfc_sli_hbq_to_firmware(phba, hbqno, hbq_buffer))
James Smart51ef4c22007-08-02 11:10:31 -04001567 (phba->hbqs[hbqno].hbq_free_buffer)(phba, hbq_buffer);
James Smarted957682007-06-17 19:56:37 -05001568 }
1569}
1570
James Smarte59058c2008-08-24 21:49:00 -04001571/**
James Smart3621a712009-04-06 18:47:14 -04001572 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
James Smarte59058c2008-08-24 21:49:00 -04001573 * @mbxCommand: mailbox command code.
1574 *
1575 * This function is called by the mailbox event handler function to verify
1576 * that the completed mailbox command is a legitimate mailbox command. If the
1577 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1578 * and the mailbox event handler will take the HBA offline.
1579 **/
dea31012005-04-17 16:05:31 -05001580static int
1581lpfc_sli_chk_mbx_command(uint8_t mbxCommand)
1582{
1583 uint8_t ret;
1584
1585 switch (mbxCommand) {
1586 case MBX_LOAD_SM:
1587 case MBX_READ_NV:
1588 case MBX_WRITE_NV:
James Smarta8adb832007-10-27 13:37:53 -04001589 case MBX_WRITE_VPARMS:
dea31012005-04-17 16:05:31 -05001590 case MBX_RUN_BIU_DIAG:
1591 case MBX_INIT_LINK:
1592 case MBX_DOWN_LINK:
1593 case MBX_CONFIG_LINK:
1594 case MBX_CONFIG_RING:
1595 case MBX_RESET_RING:
1596 case MBX_READ_CONFIG:
1597 case MBX_READ_RCONFIG:
1598 case MBX_READ_SPARM:
1599 case MBX_READ_STATUS:
1600 case MBX_READ_RPI:
1601 case MBX_READ_XRI:
1602 case MBX_READ_REV:
1603 case MBX_READ_LNK_STAT:
1604 case MBX_REG_LOGIN:
1605 case MBX_UNREG_LOGIN:
1606 case MBX_READ_LA:
1607 case MBX_CLEAR_LA:
1608 case MBX_DUMP_MEMORY:
1609 case MBX_DUMP_CONTEXT:
1610 case MBX_RUN_DIAGS:
1611 case MBX_RESTART:
1612 case MBX_UPDATE_CFG:
1613 case MBX_DOWN_LOAD:
1614 case MBX_DEL_LD_ENTRY:
1615 case MBX_RUN_PROGRAM:
1616 case MBX_SET_MASK:
James Smart09372822008-01-11 01:52:54 -05001617 case MBX_SET_VARIABLE:
dea31012005-04-17 16:05:31 -05001618 case MBX_UNREG_D_ID:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001619 case MBX_KILL_BOARD:
dea31012005-04-17 16:05:31 -05001620 case MBX_CONFIG_FARP:
Jamie Wellnitz41415862006-02-28 19:25:27 -05001621 case MBX_BEACON:
dea31012005-04-17 16:05:31 -05001622 case MBX_LOAD_AREA:
1623 case MBX_RUN_BIU_DIAG64:
1624 case MBX_CONFIG_PORT:
1625 case MBX_READ_SPARM64:
1626 case MBX_READ_RPI64:
1627 case MBX_REG_LOGIN64:
1628 case MBX_READ_LA64:
James Smart09372822008-01-11 01:52:54 -05001629 case MBX_WRITE_WWN:
dea31012005-04-17 16:05:31 -05001630 case MBX_SET_DEBUG:
1631 case MBX_LOAD_EXP_ROM:
James Smart57127f12007-10-27 13:37:05 -04001632 case MBX_ASYNCEVT_ENABLE:
James Smart92d7f7b2007-06-17 19:56:38 -05001633 case MBX_REG_VPI:
1634 case MBX_UNREG_VPI:
James Smart858c9f62007-06-17 19:56:39 -05001635 case MBX_HEARTBEAT:
James Smart84774a42008-08-24 21:50:06 -04001636 case MBX_PORT_CAPABILITIES:
1637 case MBX_PORT_IOV_CONTROL:
James Smart04c68492009-05-22 14:52:52 -04001638 case MBX_SLI4_CONFIG:
1639 case MBX_SLI4_REQ_FTRS:
1640 case MBX_REG_FCFI:
1641 case MBX_UNREG_FCFI:
1642 case MBX_REG_VFI:
1643 case MBX_UNREG_VFI:
1644 case MBX_INIT_VPI:
1645 case MBX_INIT_VFI:
1646 case MBX_RESUME_RPI:
dea31012005-04-17 16:05:31 -05001647 ret = mbxCommand;
1648 break;
1649 default:
1650 ret = MBX_SHUTDOWN;
1651 break;
1652 }
James Smart2e0fef82007-06-17 19:56:36 -05001653 return ret;
dea31012005-04-17 16:05:31 -05001654}
James Smarte59058c2008-08-24 21:49:00 -04001655
1656/**
James Smart3621a712009-04-06 18:47:14 -04001657 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001658 * @phba: Pointer to HBA context object.
1659 * @pmboxq: Pointer to mailbox command.
1660 *
1661 * This is completion handler function for mailbox commands issued from
1662 * lpfc_sli_issue_mbox_wait function. This function is called by the
1663 * mailbox event handler function with no lock held. This function
1664 * will wake up thread waiting on the wait queue pointed by context1
1665 * of the mailbox.
1666 **/
James Smart04c68492009-05-22 14:52:52 -04001667void
James Smart2e0fef82007-06-17 19:56:36 -05001668lpfc_sli_wake_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
dea31012005-04-17 16:05:31 -05001669{
1670 wait_queue_head_t *pdone_q;
James Smart858c9f62007-06-17 19:56:39 -05001671 unsigned long drvr_flag;
dea31012005-04-17 16:05:31 -05001672
1673 /*
1674 * If pdone_q is empty, the driver thread gave up waiting and
1675 * continued running.
1676 */
James Smart7054a602007-04-25 09:52:34 -04001677 pmboxq->mbox_flag |= LPFC_MBX_WAKE;
James Smart858c9f62007-06-17 19:56:39 -05001678 spin_lock_irqsave(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001679 pdone_q = (wait_queue_head_t *) pmboxq->context1;
1680 if (pdone_q)
1681 wake_up_interruptible(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05001682 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05001683 return;
1684}
1685
James Smarte59058c2008-08-24 21:49:00 -04001686
1687/**
James Smart3621a712009-04-06 18:47:14 -04001688 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
James Smarte59058c2008-08-24 21:49:00 -04001689 * @phba: Pointer to HBA context object.
1690 * @pmb: Pointer to mailbox object.
1691 *
1692 * This function is the default mailbox completion handler. It
1693 * frees the memory resources associated with the completed mailbox
1694 * command. If the completed command is a REG_LOGIN mailbox command,
1695 * this function will issue a UREG_LOGIN to re-claim the RPI.
1696 **/
dea31012005-04-17 16:05:31 -05001697void
James Smart2e0fef82007-06-17 19:56:36 -05001698lpfc_sli_def_mbox_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
dea31012005-04-17 16:05:31 -05001699{
1700 struct lpfc_dmabuf *mp;
James Smart04c68492009-05-22 14:52:52 -04001701 uint16_t rpi, vpi;
James Smart7054a602007-04-25 09:52:34 -04001702 int rc;
1703
dea31012005-04-17 16:05:31 -05001704 mp = (struct lpfc_dmabuf *) (pmb->context1);
James Smart7054a602007-04-25 09:52:34 -04001705
dea31012005-04-17 16:05:31 -05001706 if (mp) {
1707 lpfc_mbuf_free(phba, mp->virt, mp->phys);
1708 kfree(mp);
1709 }
James Smart7054a602007-04-25 09:52:34 -04001710
James Smart04c68492009-05-22 14:52:52 -04001711 if ((pmb->u.mb.mbxCommand == MBX_UNREG_LOGIN) &&
1712 (phba->sli_rev == LPFC_SLI_REV4))
1713 lpfc_sli4_free_rpi(phba, pmb->u.mb.un.varUnregLogin.rpi);
1714
James Smart7054a602007-04-25 09:52:34 -04001715 /*
1716 * If a REG_LOGIN succeeded after node is destroyed or node
1717 * is in re-discovery driver need to cleanup the RPI.
1718 */
James Smart2e0fef82007-06-17 19:56:36 -05001719 if (!(phba->pport->load_flag & FC_UNLOADING) &&
James Smart04c68492009-05-22 14:52:52 -04001720 pmb->u.mb.mbxCommand == MBX_REG_LOGIN64 &&
1721 !pmb->u.mb.mbxStatus) {
1722 rpi = pmb->u.mb.un.varWords[0];
1723 vpi = pmb->u.mb.un.varRegLogin.vpi - phba->vpi_base;
1724 lpfc_unreg_login(phba, vpi, rpi, pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001725 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
James Smart7054a602007-04-25 09:52:34 -04001726 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
1727 if (rc != MBX_NOT_FINISHED)
1728 return;
1729 }
1730
James Smart04c68492009-05-22 14:52:52 -04001731 if (bf_get(lpfc_mqe_command, &pmb->u.mqe) == MBX_SLI4_CONFIG)
1732 lpfc_sli4_mbox_cmd_free(phba, pmb);
1733 else
1734 mempool_free(pmb, phba->mbox_mem_pool);
dea31012005-04-17 16:05:31 -05001735}
1736
James Smarte59058c2008-08-24 21:49:00 -04001737/**
James Smart3621a712009-04-06 18:47:14 -04001738 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
James Smarte59058c2008-08-24 21:49:00 -04001739 * @phba: Pointer to HBA context object.
1740 *
1741 * This function is called with no lock held. This function processes all
1742 * the completed mailbox commands and gives it to upper layers. The interrupt
1743 * service routine processes mailbox completion interrupt and adds completed
1744 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1745 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1746 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1747 * function returns the mailbox commands to the upper layer by calling the
1748 * completion handler function of each mailbox.
1749 **/
dea31012005-04-17 16:05:31 -05001750int
James Smart2e0fef82007-06-17 19:56:36 -05001751lpfc_sli_handle_mb_event(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05001752{
James Smart92d7f7b2007-06-17 19:56:38 -05001753 MAILBOX_t *pmbox;
dea31012005-04-17 16:05:31 -05001754 LPFC_MBOXQ_t *pmb;
James Smart92d7f7b2007-06-17 19:56:38 -05001755 int rc;
1756 LIST_HEAD(cmplq);
dea31012005-04-17 16:05:31 -05001757
1758 phba->sli.slistat.mbox_event++;
1759
James Smart92d7f7b2007-06-17 19:56:38 -05001760 /* Get all completed mailboxe buffers into the cmplq */
1761 spin_lock_irq(&phba->hbalock);
1762 list_splice_init(&phba->sli.mboxq_cmpl, &cmplq);
1763 spin_unlock_irq(&phba->hbalock);
1764
dea31012005-04-17 16:05:31 -05001765 /* Get a Mailbox buffer to setup mailbox commands for callback */
James Smart92d7f7b2007-06-17 19:56:38 -05001766 do {
1767 list_remove_head(&cmplq, pmb, LPFC_MBOXQ_t, list);
1768 if (pmb == NULL)
1769 break;
1770
James Smart04c68492009-05-22 14:52:52 -04001771 pmbox = &pmb->u.mb;
dea31012005-04-17 16:05:31 -05001772
James Smart858c9f62007-06-17 19:56:39 -05001773 if (pmbox->mbxCommand != MBX_HEARTBEAT) {
1774 if (pmb->vport) {
1775 lpfc_debugfs_disc_trc(pmb->vport,
1776 LPFC_DISC_TRC_MBOX_VPORT,
1777 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1778 (uint32_t)pmbox->mbxCommand,
1779 pmbox->un.varWords[0],
1780 pmbox->un.varWords[1]);
1781 }
1782 else {
1783 lpfc_debugfs_disc_trc(phba->pport,
1784 LPFC_DISC_TRC_MBOX,
1785 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1786 (uint32_t)pmbox->mbxCommand,
1787 pmbox->un.varWords[0],
1788 pmbox->un.varWords[1]);
1789 }
1790 }
1791
dea31012005-04-17 16:05:31 -05001792 /*
1793 * It is a fatal error if unknown mbox command completion.
1794 */
1795 if (lpfc_sli_chk_mbx_command(pmbox->mbxCommand) ==
1796 MBX_SHUTDOWN) {
dea31012005-04-17 16:05:31 -05001797 /* Unknow mailbox command compl */
James Smart92d7f7b2007-06-17 19:56:38 -05001798 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001799 "(%d):0323 Unknown Mailbox command "
James Smart04c68492009-05-22 14:52:52 -04001800 "x%x (x%x) Cmpl\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001801 pmb->vport ? pmb->vport->vpi : 0,
James Smart04c68492009-05-22 14:52:52 -04001802 pmbox->mbxCommand,
1803 lpfc_sli4_mbox_opcode_get(phba, pmb));
James Smart2e0fef82007-06-17 19:56:36 -05001804 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05001805 phba->work_hs = HS_FFER3;
1806 lpfc_handle_eratt(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05001807 continue;
dea31012005-04-17 16:05:31 -05001808 }
1809
dea31012005-04-17 16:05:31 -05001810 if (pmbox->mbxStatus) {
1811 phba->sli.slistat.mbox_stat_err++;
1812 if (pmbox->mbxStatus == MBXERR_NO_RESOURCES) {
1813 /* Mbox cmd cmpl error - RETRYing */
James Smart92d7f7b2007-06-17 19:56:38 -05001814 lpfc_printf_log(phba, KERN_INFO,
1815 LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04001816 "(%d):0305 Mbox cmd cmpl "
James Smart92d7f7b2007-06-17 19:56:38 -05001817 "error - RETRYing Data: x%x "
James Smart04c68492009-05-22 14:52:52 -04001818 "(x%x) x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05001819 pmb->vport ? pmb->vport->vpi :0,
1820 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001821 lpfc_sli4_mbox_opcode_get(phba,
1822 pmb),
James Smart92d7f7b2007-06-17 19:56:38 -05001823 pmbox->mbxStatus,
1824 pmbox->un.varWords[0],
1825 pmb->vport->port_state);
dea31012005-04-17 16:05:31 -05001826 pmbox->mbxStatus = 0;
1827 pmbox->mbxOwner = OWN_HOST;
dea31012005-04-17 16:05:31 -05001828 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
James Smart04c68492009-05-22 14:52:52 -04001829 if (rc != MBX_NOT_FINISHED)
James Smart92d7f7b2007-06-17 19:56:38 -05001830 continue;
dea31012005-04-17 16:05:31 -05001831 }
1832 }
1833
1834 /* Mailbox cmd <cmd> Cmpl <cmpl> */
James Smart92d7f7b2007-06-17 19:56:38 -05001835 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smart04c68492009-05-22 14:52:52 -04001836 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
dea31012005-04-17 16:05:31 -05001837 "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 -05001838 pmb->vport ? pmb->vport->vpi : 0,
dea31012005-04-17 16:05:31 -05001839 pmbox->mbxCommand,
James Smart04c68492009-05-22 14:52:52 -04001840 lpfc_sli4_mbox_opcode_get(phba, pmb),
dea31012005-04-17 16:05:31 -05001841 pmb->mbox_cmpl,
1842 *((uint32_t *) pmbox),
1843 pmbox->un.varWords[0],
1844 pmbox->un.varWords[1],
1845 pmbox->un.varWords[2],
1846 pmbox->un.varWords[3],
1847 pmbox->un.varWords[4],
1848 pmbox->un.varWords[5],
1849 pmbox->un.varWords[6],
1850 pmbox->un.varWords[7]);
1851
James Smart92d7f7b2007-06-17 19:56:38 -05001852 if (pmb->mbox_cmpl)
dea31012005-04-17 16:05:31 -05001853 pmb->mbox_cmpl(phba,pmb);
James Smart92d7f7b2007-06-17 19:56:38 -05001854 } while (1);
James Smart2e0fef82007-06-17 19:56:36 -05001855 return 0;
dea31012005-04-17 16:05:31 -05001856}
James Smart92d7f7b2007-06-17 19:56:38 -05001857
James Smarte59058c2008-08-24 21:49:00 -04001858/**
James Smart3621a712009-04-06 18:47:14 -04001859 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
James Smarte59058c2008-08-24 21:49:00 -04001860 * @phba: Pointer to HBA context object.
1861 * @pring: Pointer to driver SLI ring object.
1862 * @tag: buffer tag.
1863 *
1864 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1865 * is set in the tag the buffer is posted for a particular exchange,
1866 * the function will return the buffer without replacing the buffer.
1867 * If the buffer is for unsolicited ELS or CT traffic, this function
1868 * returns the buffer and also posts another buffer to the firmware.
1869 **/
James Smart76bb24e2007-10-27 13:38:00 -04001870static struct lpfc_dmabuf *
1871lpfc_sli_get_buff(struct lpfc_hba *phba,
James Smart9f1e1b52008-12-04 22:39:40 -05001872 struct lpfc_sli_ring *pring,
1873 uint32_t tag)
James Smart76bb24e2007-10-27 13:38:00 -04001874{
James Smart9f1e1b52008-12-04 22:39:40 -05001875 struct hbq_dmabuf *hbq_entry;
1876
James Smart76bb24e2007-10-27 13:38:00 -04001877 if (tag & QUE_BUFTAG_BIT)
1878 return lpfc_sli_ring_taggedbuf_get(phba, pring, tag);
James Smart9f1e1b52008-12-04 22:39:40 -05001879 hbq_entry = lpfc_sli_hbqbuf_find(phba, tag);
1880 if (!hbq_entry)
1881 return NULL;
1882 return &hbq_entry->dbuf;
James Smart76bb24e2007-10-27 13:38:00 -04001883}
James Smart57127f12007-10-27 13:37:05 -04001884
James Smart3772a992009-05-22 14:50:54 -04001885/**
1886 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1887 * @phba: Pointer to HBA context object.
1888 * @pring: Pointer to driver SLI ring object.
1889 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1890 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1891 * @fch_type: the type for the first frame of the sequence.
1892 *
1893 * This function is called with no lock held. This function uses the r_ctl and
1894 * type of the received sequence to find the correct callback function to call
1895 * to process the sequence.
1896 **/
1897static int
1898lpfc_complete_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1899 struct lpfc_iocbq *saveq, uint32_t fch_r_ctl,
1900 uint32_t fch_type)
1901{
1902 int i;
1903
1904 /* unSolicited Responses */
1905 if (pring->prt[0].profile) {
1906 if (pring->prt[0].lpfc_sli_rcv_unsol_event)
1907 (pring->prt[0].lpfc_sli_rcv_unsol_event) (phba, pring,
1908 saveq);
1909 return 1;
1910 }
1911 /* We must search, based on rctl / type
1912 for the right routine */
1913 for (i = 0; i < pring->num_mask; i++) {
1914 if ((pring->prt[i].rctl == fch_r_ctl) &&
1915 (pring->prt[i].type == fch_type)) {
1916 if (pring->prt[i].lpfc_sli_rcv_unsol_event)
1917 (pring->prt[i].lpfc_sli_rcv_unsol_event)
1918 (phba, pring, saveq);
1919 return 1;
1920 }
1921 }
1922 return 0;
1923}
James Smarte59058c2008-08-24 21:49:00 -04001924
1925/**
James Smart3621a712009-04-06 18:47:14 -04001926 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
James Smarte59058c2008-08-24 21:49:00 -04001927 * @phba: Pointer to HBA context object.
1928 * @pring: Pointer to driver SLI ring object.
1929 * @saveq: Pointer to the unsolicited iocb.
1930 *
1931 * This function is called with no lock held by the ring event handler
1932 * when there is an unsolicited iocb posted to the response ring by the
1933 * firmware. This function gets the buffer associated with the iocbs
1934 * and calls the event handler for the ring. This function handles both
1935 * qring buffers and hbq buffers.
1936 * When the function returns 1 the caller can free the iocb object otherwise
1937 * upper layer functions will free the iocb objects.
1938 **/
dea31012005-04-17 16:05:31 -05001939static int
1940lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
1941 struct lpfc_iocbq *saveq)
1942{
1943 IOCB_t * irsp;
1944 WORD5 * w5p;
1945 uint32_t Rctl, Type;
James Smart3772a992009-05-22 14:50:54 -04001946 uint32_t match;
James Smart76bb24e2007-10-27 13:38:00 -04001947 struct lpfc_iocbq *iocbq;
James Smart3163f722008-02-08 18:50:25 -05001948 struct lpfc_dmabuf *dmzbuf;
dea31012005-04-17 16:05:31 -05001949
1950 match = 0;
1951 irsp = &(saveq->iocb);
James Smart57127f12007-10-27 13:37:05 -04001952
1953 if (irsp->ulpCommand == CMD_ASYNC_STATUS) {
1954 if (pring->lpfc_sli_rcv_async_status)
1955 pring->lpfc_sli_rcv_async_status(phba, pring, saveq);
1956 else
1957 lpfc_printf_log(phba,
1958 KERN_WARNING,
1959 LOG_SLI,
1960 "0316 Ring %d handler: unexpected "
1961 "ASYNC_STATUS iocb received evt_code "
1962 "0x%x\n",
1963 pring->ringno,
1964 irsp->un.asyncstat.evt_code);
1965 return 1;
1966 }
1967
James Smart3163f722008-02-08 18:50:25 -05001968 if ((irsp->ulpCommand == CMD_IOCB_RET_XRI64_CX) &&
1969 (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED)) {
1970 if (irsp->ulpBdeCount > 0) {
1971 dmzbuf = lpfc_sli_get_buff(phba, pring,
1972 irsp->un.ulpWord[3]);
1973 lpfc_in_buf_free(phba, dmzbuf);
1974 }
1975
1976 if (irsp->ulpBdeCount > 1) {
1977 dmzbuf = lpfc_sli_get_buff(phba, pring,
1978 irsp->unsli3.sli3Words[3]);
1979 lpfc_in_buf_free(phba, dmzbuf);
1980 }
1981
1982 if (irsp->ulpBdeCount > 2) {
1983 dmzbuf = lpfc_sli_get_buff(phba, pring,
1984 irsp->unsli3.sli3Words[7]);
1985 lpfc_in_buf_free(phba, dmzbuf);
1986 }
1987
1988 return 1;
1989 }
1990
James Smart92d7f7b2007-06-17 19:56:38 -05001991 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
James Smart76bb24e2007-10-27 13:38:00 -04001992 if (irsp->ulpBdeCount != 0) {
1993 saveq->context2 = lpfc_sli_get_buff(phba, pring,
James Smart92d7f7b2007-06-17 19:56:38 -05001994 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04001995 if (!saveq->context2)
1996 lpfc_printf_log(phba,
1997 KERN_ERR,
1998 LOG_SLI,
1999 "0341 Ring %d Cannot find buffer for "
2000 "an unsolicited iocb. tag 0x%x\n",
2001 pring->ringno,
2002 irsp->un.ulpWord[3]);
James Smart76bb24e2007-10-27 13:38:00 -04002003 }
2004 if (irsp->ulpBdeCount == 2) {
2005 saveq->context3 = lpfc_sli_get_buff(phba, pring,
James Smart51ef4c22007-08-02 11:10:31 -04002006 irsp->unsli3.sli3Words[7]);
James Smart76bb24e2007-10-27 13:38:00 -04002007 if (!saveq->context3)
2008 lpfc_printf_log(phba,
2009 KERN_ERR,
2010 LOG_SLI,
2011 "0342 Ring %d Cannot find buffer for an"
2012 " unsolicited iocb. tag 0x%x\n",
2013 pring->ringno,
2014 irsp->unsli3.sli3Words[7]);
2015 }
2016 list_for_each_entry(iocbq, &saveq->list, list) {
James Smart76bb24e2007-10-27 13:38:00 -04002017 irsp = &(iocbq->iocb);
James Smart76bb24e2007-10-27 13:38:00 -04002018 if (irsp->ulpBdeCount != 0) {
2019 iocbq->context2 = lpfc_sli_get_buff(phba, pring,
2020 irsp->un.ulpWord[3]);
James Smart9c2face2008-01-11 01:53:18 -05002021 if (!iocbq->context2)
James Smart76bb24e2007-10-27 13:38:00 -04002022 lpfc_printf_log(phba,
2023 KERN_ERR,
2024 LOG_SLI,
2025 "0343 Ring %d Cannot find "
2026 "buffer for an unsolicited iocb"
2027 ". tag 0x%x\n", pring->ringno,
2028 irsp->un.ulpWord[3]);
2029 }
2030 if (irsp->ulpBdeCount == 2) {
2031 iocbq->context3 = lpfc_sli_get_buff(phba, pring,
2032 irsp->unsli3.sli3Words[7]);
James Smart9c2face2008-01-11 01:53:18 -05002033 if (!iocbq->context3)
James Smart76bb24e2007-10-27 13:38:00 -04002034 lpfc_printf_log(phba,
2035 KERN_ERR,
2036 LOG_SLI,
2037 "0344 Ring %d Cannot find "
2038 "buffer for an unsolicited "
2039 "iocb. tag 0x%x\n",
2040 pring->ringno,
2041 irsp->unsli3.sli3Words[7]);
2042 }
2043 }
James Smart92d7f7b2007-06-17 19:56:38 -05002044 }
James Smart9c2face2008-01-11 01:53:18 -05002045 if (irsp->ulpBdeCount != 0 &&
2046 (irsp->ulpCommand == CMD_IOCB_RCV_CONT64_CX ||
2047 irsp->ulpStatus == IOSTAT_INTERMED_RSP)) {
2048 int found = 0;
2049
2050 /* search continue save q for same XRI */
2051 list_for_each_entry(iocbq, &pring->iocb_continue_saveq, clist) {
2052 if (iocbq->iocb.ulpContext == saveq->iocb.ulpContext) {
2053 list_add_tail(&saveq->list, &iocbq->list);
2054 found = 1;
2055 break;
2056 }
2057 }
2058 if (!found)
2059 list_add_tail(&saveq->clist,
2060 &pring->iocb_continue_saveq);
2061 if (saveq->iocb.ulpStatus != IOSTAT_INTERMED_RSP) {
2062 list_del_init(&iocbq->clist);
2063 saveq = iocbq;
2064 irsp = &(saveq->iocb);
2065 } else
2066 return 0;
2067 }
2068 if ((irsp->ulpCommand == CMD_RCV_ELS_REQ64_CX) ||
2069 (irsp->ulpCommand == CMD_RCV_ELS_REQ_CX) ||
2070 (irsp->ulpCommand == CMD_IOCB_RCV_ELS64_CX)) {
2071 Rctl = FC_ELS_REQ;
2072 Type = FC_ELS_DATA;
2073 } else {
2074 w5p = (WORD5 *)&(saveq->iocb.un.ulpWord[5]);
2075 Rctl = w5p->hcsw.Rctl;
2076 Type = w5p->hcsw.Type;
2077
2078 /* Firmware Workaround */
2079 if ((Rctl == 0) && (pring->ringno == LPFC_ELS_RING) &&
2080 (irsp->ulpCommand == CMD_RCV_SEQUENCE64_CX ||
2081 irsp->ulpCommand == CMD_IOCB_RCV_SEQ64_CX)) {
2082 Rctl = FC_ELS_REQ;
2083 Type = FC_ELS_DATA;
2084 w5p->hcsw.Rctl = Rctl;
2085 w5p->hcsw.Type = Type;
2086 }
2087 }
James Smart92d7f7b2007-06-17 19:56:38 -05002088
James Smart3772a992009-05-22 14:50:54 -04002089 if (!lpfc_complete_unsol_iocb(phba, pring, saveq, Rctl, Type))
James Smart92d7f7b2007-06-17 19:56:38 -05002090 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002091 "0313 Ring %d handler: unexpected Rctl x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05002092 "Type x%x received\n",
James Smarte8b62012007-08-02 11:10:09 -04002093 pring->ringno, Rctl, Type);
James Smart3772a992009-05-22 14:50:54 -04002094
James Smart92d7f7b2007-06-17 19:56:38 -05002095 return 1;
dea31012005-04-17 16:05:31 -05002096}
2097
James Smarte59058c2008-08-24 21:49:00 -04002098/**
James Smart3621a712009-04-06 18:47:14 -04002099 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
James Smarte59058c2008-08-24 21:49:00 -04002100 * @phba: Pointer to HBA context object.
2101 * @pring: Pointer to driver SLI ring object.
2102 * @prspiocb: Pointer to response iocb object.
2103 *
2104 * This function looks up the iocb_lookup table to get the command iocb
2105 * corresponding to the given response iocb using the iotag of the
2106 * response iocb. This function is called with the hbalock held.
2107 * This function returns the command iocb object if it finds the command
2108 * iocb else returns NULL.
2109 **/
dea31012005-04-17 16:05:31 -05002110static struct lpfc_iocbq *
James Smart2e0fef82007-06-17 19:56:36 -05002111lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
2112 struct lpfc_sli_ring *pring,
2113 struct lpfc_iocbq *prspiocb)
dea31012005-04-17 16:05:31 -05002114{
dea31012005-04-17 16:05:31 -05002115 struct lpfc_iocbq *cmd_iocb = NULL;
2116 uint16_t iotag;
2117
James Bottomley604a3e32005-10-29 10:28:33 -05002118 iotag = prspiocb->iocb.ulpIoTag;
dea31012005-04-17 16:05:31 -05002119
James Bottomley604a3e32005-10-29 10:28:33 -05002120 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2121 cmd_iocb = phba->sli.iocbq_lookup[iotag];
James Smart92d7f7b2007-06-17 19:56:38 -05002122 list_del_init(&cmd_iocb->list);
James Bottomley604a3e32005-10-29 10:28:33 -05002123 pring->txcmplq_cnt--;
2124 return cmd_iocb;
dea31012005-04-17 16:05:31 -05002125 }
2126
dea31012005-04-17 16:05:31 -05002127 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002128 "0317 iotag x%x is out off "
James Bottomley604a3e32005-10-29 10:28:33 -05002129 "range: max iotag x%x wd0 x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002130 iotag, phba->sli.last_iotag,
James Bottomley604a3e32005-10-29 10:28:33 -05002131 *(((uint32_t *) &prspiocb->iocb) + 7));
dea31012005-04-17 16:05:31 -05002132 return NULL;
2133}
2134
James Smarte59058c2008-08-24 21:49:00 -04002135/**
James Smart3772a992009-05-22 14:50:54 -04002136 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2137 * @phba: Pointer to HBA context object.
2138 * @pring: Pointer to driver SLI ring object.
2139 * @iotag: IOCB tag.
2140 *
2141 * This function looks up the iocb_lookup table to get the command iocb
2142 * corresponding to the given iotag. This function is called with the
2143 * hbalock held.
2144 * This function returns the command iocb object if it finds the command
2145 * iocb else returns NULL.
2146 **/
2147static struct lpfc_iocbq *
2148lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
2149 struct lpfc_sli_ring *pring, uint16_t iotag)
2150{
2151 struct lpfc_iocbq *cmd_iocb;
2152
2153 if (iotag != 0 && iotag <= phba->sli.last_iotag) {
2154 cmd_iocb = phba->sli.iocbq_lookup[iotag];
2155 list_del_init(&cmd_iocb->list);
2156 pring->txcmplq_cnt--;
2157 return cmd_iocb;
2158 }
2159
2160 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2161 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2162 iotag, phba->sli.last_iotag);
2163 return NULL;
2164}
2165
2166/**
James Smart3621a712009-04-06 18:47:14 -04002167 * lpfc_sli_process_sol_iocb - process solicited iocb completion
James Smarte59058c2008-08-24 21:49:00 -04002168 * @phba: Pointer to HBA context object.
2169 * @pring: Pointer to driver SLI ring object.
2170 * @saveq: Pointer to the response iocb to be processed.
2171 *
2172 * This function is called by the ring event handler for non-fcp
2173 * rings when there is a new response iocb in the response ring.
2174 * The caller is not required to hold any locks. This function
2175 * gets the command iocb associated with the response iocb and
2176 * calls the completion handler for the command iocb. If there
2177 * is no completion handler, the function will free the resources
2178 * associated with command iocb. If the response iocb is for
2179 * an already aborted command iocb, the status of the completion
2180 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2181 * This function always returns 1.
2182 **/
dea31012005-04-17 16:05:31 -05002183static int
James Smart2e0fef82007-06-17 19:56:36 -05002184lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
dea31012005-04-17 16:05:31 -05002185 struct lpfc_iocbq *saveq)
2186{
James Smart2e0fef82007-06-17 19:56:36 -05002187 struct lpfc_iocbq *cmdiocbp;
dea31012005-04-17 16:05:31 -05002188 int rc = 1;
2189 unsigned long iflag;
2190
2191 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
James Smart2e0fef82007-06-17 19:56:36 -05002192 spin_lock_irqsave(&phba->hbalock, iflag);
James Bottomley604a3e32005-10-29 10:28:33 -05002193 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
James Smart2e0fef82007-06-17 19:56:36 -05002194 spin_unlock_irqrestore(&phba->hbalock, iflag);
2195
dea31012005-04-17 16:05:31 -05002196 if (cmdiocbp) {
2197 if (cmdiocbp->iocb_cmpl) {
2198 /*
James Smartea2151b2008-09-07 11:52:10 -04002199 * If an ELS command failed send an event to mgmt
2200 * application.
2201 */
2202 if (saveq->iocb.ulpStatus &&
2203 (pring->ringno == LPFC_ELS_RING) &&
2204 (cmdiocbp->iocb.ulpCommand ==
2205 CMD_ELS_REQUEST64_CR))
2206 lpfc_send_els_failure_event(phba,
2207 cmdiocbp, saveq);
2208
2209 /*
dea31012005-04-17 16:05:31 -05002210 * Post all ELS completions to the worker thread.
2211 * All other are passed to the completion callback.
2212 */
2213 if (pring->ringno == LPFC_ELS_RING) {
James Smart07951072007-04-25 09:51:38 -04002214 if (cmdiocbp->iocb_flag & LPFC_DRIVER_ABORTED) {
2215 cmdiocbp->iocb_flag &=
2216 ~LPFC_DRIVER_ABORTED;
2217 saveq->iocb.ulpStatus =
2218 IOSTAT_LOCAL_REJECT;
2219 saveq->iocb.un.ulpWord[4] =
2220 IOERR_SLI_ABORTED;
James Smart0ff10d42008-01-11 01:52:36 -05002221
2222 /* Firmware could still be in progress
2223 * of DMAing payload, so don't free data
2224 * buffer till after a hbeat.
2225 */
2226 saveq->iocb_flag |= LPFC_DELAY_MEM_FREE;
James Smart07951072007-04-25 09:51:38 -04002227 }
dea31012005-04-17 16:05:31 -05002228 }
James Smart2e0fef82007-06-17 19:56:36 -05002229 (cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
James Bottomley604a3e32005-10-29 10:28:33 -05002230 } else
2231 lpfc_sli_release_iocbq(phba, cmdiocbp);
dea31012005-04-17 16:05:31 -05002232 } else {
2233 /*
2234 * Unknown initiating command based on the response iotag.
2235 * This could be the case on the ELS ring because of
2236 * lpfc_els_abort().
2237 */
2238 if (pring->ringno != LPFC_ELS_RING) {
2239 /*
2240 * Ring <ringno> handler: unexpected completion IoTag
2241 * <IoTag>
2242 */
James Smarta257bf92009-04-06 18:48:10 -04002243 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002244 "0322 Ring %d handler: "
2245 "unexpected completion IoTag x%x "
2246 "Data: x%x x%x x%x x%x\n",
2247 pring->ringno,
2248 saveq->iocb.ulpIoTag,
2249 saveq->iocb.ulpStatus,
2250 saveq->iocb.un.ulpWord[4],
2251 saveq->iocb.ulpCommand,
2252 saveq->iocb.ulpContext);
dea31012005-04-17 16:05:31 -05002253 }
2254 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04002255
dea31012005-04-17 16:05:31 -05002256 return rc;
2257}
2258
James Smarte59058c2008-08-24 21:49:00 -04002259/**
James Smart3621a712009-04-06 18:47:14 -04002260 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
James Smarte59058c2008-08-24 21:49:00 -04002261 * @phba: Pointer to HBA context object.
2262 * @pring: Pointer to driver SLI ring object.
2263 *
2264 * This function is called from the iocb ring event handlers when
2265 * put pointer is ahead of the get pointer for a ring. This function signal
2266 * an error attention condition to the worker thread and the worker
2267 * thread will transition the HBA to offline state.
2268 **/
James Smart2e0fef82007-06-17 19:56:36 -05002269static void
2270lpfc_sli_rsp_pointers_error(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002271{
James Smart34b02dc2008-08-24 21:49:55 -04002272 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002273 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002274 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002275 * rsp ring <portRspMax>
2276 */
2277 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002278 "0312 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002279 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002280 pring->ringno, le32_to_cpu(pgp->rspPutInx),
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002281 pring->numRiocb);
2282
James Smart2e0fef82007-06-17 19:56:36 -05002283 phba->link_state = LPFC_HBA_ERROR;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002284
2285 /*
2286 * All error attention handlers are posted to
2287 * worker thread
2288 */
2289 phba->work_ha |= HA_ERATT;
2290 phba->work_hs = HS_FFER3;
James Smart92d7f7b2007-06-17 19:56:38 -05002291
James Smart5e9d9b82008-06-14 22:52:53 -04002292 lpfc_worker_wake_up(phba);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002293
2294 return;
2295}
2296
James Smarte59058c2008-08-24 21:49:00 -04002297/**
James Smart3621a712009-04-06 18:47:14 -04002298 * lpfc_poll_eratt - Error attention polling timer timeout handler
James Smart93996272008-08-24 21:50:30 -04002299 * @ptr: Pointer to address of HBA context object.
2300 *
2301 * This function is invoked by the Error Attention polling timer when the
2302 * timer times out. It will check the SLI Error Attention register for
2303 * possible attention events. If so, it will post an Error Attention event
2304 * and wake up worker thread to process it. Otherwise, it will set up the
2305 * Error Attention polling timer for the next poll.
2306 **/
2307void lpfc_poll_eratt(unsigned long ptr)
2308{
2309 struct lpfc_hba *phba;
2310 uint32_t eratt = 0;
2311
2312 phba = (struct lpfc_hba *)ptr;
2313
2314 /* Check chip HA register for error event */
2315 eratt = lpfc_sli_check_eratt(phba);
2316
2317 if (eratt)
2318 /* Tell the worker thread there is work to do */
2319 lpfc_worker_wake_up(phba);
2320 else
2321 /* Restart the timer for next eratt poll */
2322 mod_timer(&phba->eratt_poll, jiffies +
2323 HZ * LPFC_ERATT_POLL_INTERVAL);
2324 return;
2325}
2326
2327/**
James Smart3621a712009-04-06 18:47:14 -04002328 * lpfc_sli_poll_fcp_ring - Handle FCP ring completion in polling mode
James Smarte59058c2008-08-24 21:49:00 -04002329 * @phba: Pointer to HBA context object.
2330 *
2331 * This function is called from lpfc_queuecommand, lpfc_poll_timeout,
2332 * lpfc_abort_handler and lpfc_slave_configure when FCP_RING_POLLING
2333 * is enabled.
2334 *
2335 * The caller does not hold any lock.
2336 * The function processes each response iocb in the response ring until it
2337 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2338 * LE bit set. The function will call the completion handler of the command iocb
2339 * if the response iocb indicates a completion for a command iocb or it is
2340 * an abort completion.
2341 **/
James Smart2e0fef82007-06-17 19:56:36 -05002342void lpfc_sli_poll_fcp_ring(struct lpfc_hba *phba)
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002343{
James Smart2e0fef82007-06-17 19:56:36 -05002344 struct lpfc_sli *psli = &phba->sli;
2345 struct lpfc_sli_ring *pring = &psli->ring[LPFC_FCP_RING];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002346 IOCB_t *irsp = NULL;
2347 IOCB_t *entry = NULL;
2348 struct lpfc_iocbq *cmdiocbq = NULL;
2349 struct lpfc_iocbq rspiocbq;
James Smart34b02dc2008-08-24 21:49:55 -04002350 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002351 uint32_t status;
2352 uint32_t portRspPut, portRspMax;
2353 int type;
2354 uint32_t rsp_cmpl = 0;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002355 uint32_t ha_copy;
James Smart2e0fef82007-06-17 19:56:36 -05002356 unsigned long iflags;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002357
2358 pring->stats.iocb_event++;
2359
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002360 /*
2361 * The next available response entry should never exceed the maximum
2362 * entries. If it does, treat it as an adapter hardware error.
2363 */
2364 portRspMax = pring->numRiocb;
2365 portRspPut = le32_to_cpu(pgp->rspPutInx);
2366 if (unlikely(portRspPut >= portRspMax)) {
2367 lpfc_sli_rsp_pointers_error(phba, pring);
2368 return;
2369 }
2370
2371 rmb();
2372 while (pring->rspidx != portRspPut) {
James Smarted957682007-06-17 19:56:37 -05002373 entry = lpfc_resp_iocb(phba, pring);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002374 if (++pring->rspidx >= portRspMax)
2375 pring->rspidx = 0;
2376
2377 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2378 (uint32_t *) &rspiocbq.iocb,
James Smart92d7f7b2007-06-17 19:56:38 -05002379 phba->iocb_rsp_size);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002380 irsp = &rspiocbq.iocb;
2381 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2382 pring->stats.iocb_rsp++;
2383 rsp_cmpl++;
2384
2385 if (unlikely(irsp->ulpStatus)) {
2386 /* Rsp ring <ringno> error: IOCB */
2387 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002388 "0326 Rsp Ring %d error: IOCB Data: "
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002389 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002390 pring->ringno,
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002391 irsp->un.ulpWord[0],
2392 irsp->un.ulpWord[1],
2393 irsp->un.ulpWord[2],
2394 irsp->un.ulpWord[3],
2395 irsp->un.ulpWord[4],
2396 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002397 *(uint32_t *)&irsp->un1,
2398 *((uint32_t *)&irsp->un1 + 1));
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002399 }
2400
2401 switch (type) {
2402 case LPFC_ABORT_IOCB:
2403 case LPFC_SOL_IOCB:
2404 /*
2405 * Idle exchange closed via ABTS from port. No iocb
2406 * resources need to be recovered.
2407 */
2408 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002409 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002410 "0314 IOCB cmd 0x%x "
2411 "processed. Skipping "
2412 "completion",
James Smartdca94792006-08-01 07:34:08 -04002413 irsp->ulpCommand);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002414 break;
2415 }
2416
James Smart2e0fef82007-06-17 19:56:36 -05002417 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002418 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2419 &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002420 spin_unlock_irqrestore(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002421 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
2422 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2423 &rspiocbq);
2424 }
2425 break;
2426 default:
2427 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2428 char adaptermsg[LPFC_MAX_ADPTMSG];
2429 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2430 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2431 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002432 dev_warn(&((phba->pcidev)->dev),
2433 "lpfc%d: %s\n",
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002434 phba->brd_no, adaptermsg);
2435 } else {
2436 /* Unknown IOCB command */
2437 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002438 "0321 Unknown IOCB command "
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002439 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002440 type, irsp->ulpCommand,
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002441 irsp->ulpStatus,
2442 irsp->ulpIoTag,
2443 irsp->ulpContext);
2444 }
2445 break;
2446 }
2447
2448 /*
2449 * The response IOCB has been processed. Update the ring
2450 * pointer in SLIM. If the port response put pointer has not
2451 * been updated, sync the pgp->rspPutInx and fetch the new port
2452 * response put pointer.
2453 */
James Smarted957682007-06-17 19:56:37 -05002454 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002455
2456 if (pring->rspidx == portRspPut)
2457 portRspPut = le32_to_cpu(pgp->rspPutInx);
2458 }
2459
2460 ha_copy = readl(phba->HAregaddr);
2461 ha_copy >>= (LPFC_FCP_RING * 4);
2462
2463 if ((rsp_cmpl > 0) && (ha_copy & HA_R0RE_REQ)) {
James Smart2e0fef82007-06-17 19:56:36 -05002464 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002465 pring->stats.iocb_rsp_full++;
2466 status = ((CA_R0ATT | CA_R0RE_RSP) << (LPFC_FCP_RING * 4));
2467 writel(status, phba->CAregaddr);
2468 readl(phba->CAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05002469 spin_unlock_irqrestore(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002470 }
2471 if ((ha_copy & HA_R0CE_RSP) &&
2472 (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
James Smart2e0fef82007-06-17 19:56:36 -05002473 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002474 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2475 pring->stats.iocb_cmd_empty++;
2476
2477 /* Force update of the local copy of cmdGetInx */
2478 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2479 lpfc_sli_resume_iocb(phba, pring);
2480
2481 if ((pring->lpfc_sli_cmd_available))
2482 (pring->lpfc_sli_cmd_available) (phba, pring);
2483
James Smart2e0fef82007-06-17 19:56:36 -05002484 spin_unlock_irqrestore(&phba->hbalock, iflags);
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002485 }
2486
2487 return;
2488}
2489
James Smarte59058c2008-08-24 21:49:00 -04002490/**
James Smart3621a712009-04-06 18:47:14 -04002491 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
James Smarte59058c2008-08-24 21:49:00 -04002492 * @phba: Pointer to HBA context object.
2493 * @pring: Pointer to driver SLI ring object.
2494 * @mask: Host attention register mask for this ring.
2495 *
2496 * This function is called from the interrupt context when there is a ring
2497 * event for the fcp ring. The caller does not hold any lock.
2498 * The function processes each response iocb in the response ring until it
2499 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2500 * LE bit set. The function will call the completion handler of the command iocb
2501 * if the response iocb indicates a completion for a command iocb or it is
2502 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2503 * function if this is an unsolicited iocb.
dea31012005-04-17 16:05:31 -05002504 * This routine presumes LPFC_FCP_RING handling and doesn't bother
James Smarte59058c2008-08-24 21:49:00 -04002505 * to check it explicitly. This function always returns 1.
2506 **/
dea31012005-04-17 16:05:31 -05002507static int
James Smart2e0fef82007-06-17 19:56:36 -05002508lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
2509 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002510{
James Smart34b02dc2008-08-24 21:49:55 -04002511 struct lpfc_pgp *pgp = &phba->port_gp[pring->ringno];
dea31012005-04-17 16:05:31 -05002512 IOCB_t *irsp = NULL;
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002513 IOCB_t *entry = NULL;
dea31012005-04-17 16:05:31 -05002514 struct lpfc_iocbq *cmdiocbq = NULL;
2515 struct lpfc_iocbq rspiocbq;
dea31012005-04-17 16:05:31 -05002516 uint32_t status;
2517 uint32_t portRspPut, portRspMax;
2518 int rc = 1;
2519 lpfc_iocb_type type;
2520 unsigned long iflag;
2521 uint32_t rsp_cmpl = 0;
dea31012005-04-17 16:05:31 -05002522
James Smart2e0fef82007-06-17 19:56:36 -05002523 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002524 pring->stats.iocb_event++;
2525
dea31012005-04-17 16:05:31 -05002526 /*
2527 * The next available response entry should never exceed the maximum
2528 * entries. If it does, treat it as an adapter hardware error.
2529 */
2530 portRspMax = pring->numRiocb;
2531 portRspPut = le32_to_cpu(pgp->rspPutInx);
2532 if (unlikely(portRspPut >= portRspMax)) {
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002533 lpfc_sli_rsp_pointers_error(phba, pring);
James Smart2e0fef82007-06-17 19:56:36 -05002534 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002535 return 1;
2536 }
2537
2538 rmb();
2539 while (pring->rspidx != portRspPut) {
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002540 /*
2541 * Fetch an entry off the ring and copy it into a local data
2542 * structure. The copy involves a byte-swap since the
2543 * network byte order and pci byte orders are different.
2544 */
James Smarted957682007-06-17 19:56:37 -05002545 entry = lpfc_resp_iocb(phba, pring);
James Smart858c9f62007-06-17 19:56:39 -05002546 phba->last_completion_time = jiffies;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05002547
2548 if (++pring->rspidx >= portRspMax)
2549 pring->rspidx = 0;
2550
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002551 lpfc_sli_pcimem_bcopy((uint32_t *) entry,
2552 (uint32_t *) &rspiocbq.iocb,
James Smarted957682007-06-17 19:56:37 -05002553 phba->iocb_rsp_size);
James Smarta4bc3372006-12-02 13:34:16 -05002554 INIT_LIST_HEAD(&(rspiocbq.list));
James.Smart@Emulex.Com87f6eaf2005-06-25 10:34:13 -04002555 irsp = &rspiocbq.iocb;
2556
dea31012005-04-17 16:05:31 -05002557 type = lpfc_sli_iocb_cmd_type(irsp->ulpCommand & CMD_IOCB_MASK);
2558 pring->stats.iocb_rsp++;
2559 rsp_cmpl++;
2560
2561 if (unlikely(irsp->ulpStatus)) {
James Smart92d7f7b2007-06-17 19:56:38 -05002562 /*
2563 * If resource errors reported from HBA, reduce
2564 * queuedepths of the SCSI device.
2565 */
2566 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2567 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2568 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04002569 phba->lpfc_rampdown_queue_depth(phba);
James Smart92d7f7b2007-06-17 19:56:38 -05002570 spin_lock_irqsave(&phba->hbalock, iflag);
2571 }
2572
dea31012005-04-17 16:05:31 -05002573 /* Rsp ring <ringno> error: IOCB */
2574 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002575 "0336 Rsp Ring %d error: IOCB Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05002576 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002577 pring->ringno,
James Smart92d7f7b2007-06-17 19:56:38 -05002578 irsp->un.ulpWord[0],
2579 irsp->un.ulpWord[1],
2580 irsp->un.ulpWord[2],
2581 irsp->un.ulpWord[3],
2582 irsp->un.ulpWord[4],
2583 irsp->un.ulpWord[5],
James Smartd7c255b2008-08-24 21:50:00 -04002584 *(uint32_t *)&irsp->un1,
2585 *((uint32_t *)&irsp->un1 + 1));
dea31012005-04-17 16:05:31 -05002586 }
2587
2588 switch (type) {
2589 case LPFC_ABORT_IOCB:
2590 case LPFC_SOL_IOCB:
2591 /*
2592 * Idle exchange closed via ABTS from port. No iocb
2593 * resources need to be recovered.
2594 */
2595 if (unlikely(irsp->ulpCommand == CMD_XRI_ABORTED_CX)) {
James Smartdca94792006-08-01 07:34:08 -04002596 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002597 "0333 IOCB cmd 0x%x"
James Smartdca94792006-08-01 07:34:08 -04002598 " processed. Skipping"
James Smart92d7f7b2007-06-17 19:56:38 -05002599 " completion\n",
James Smartdca94792006-08-01 07:34:08 -04002600 irsp->ulpCommand);
dea31012005-04-17 16:05:31 -05002601 break;
2602 }
2603
James Bottomley604a3e32005-10-29 10:28:33 -05002604 cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
2605 &rspiocbq);
dea31012005-04-17 16:05:31 -05002606 if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
Jamie Wellnitzb8086082006-02-28 22:33:12 -05002607 if (phba->cfg_poll & ENABLE_FCP_RING_POLLING) {
2608 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2609 &rspiocbq);
2610 } else {
James Smart2e0fef82007-06-17 19:56:36 -05002611 spin_unlock_irqrestore(&phba->hbalock,
2612 iflag);
Jamie Wellnitzb8086082006-02-28 22:33:12 -05002613 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq,
2614 &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002615 spin_lock_irqsave(&phba->hbalock,
Jamie Wellnitzb8086082006-02-28 22:33:12 -05002616 iflag);
2617 }
dea31012005-04-17 16:05:31 -05002618 }
2619 break;
James Smarta4bc3372006-12-02 13:34:16 -05002620 case LPFC_UNSOL_IOCB:
James Smart2e0fef82007-06-17 19:56:36 -05002621 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002622 lpfc_sli_process_unsol_iocb(phba, pring, &rspiocbq);
James Smart2e0fef82007-06-17 19:56:36 -05002623 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta4bc3372006-12-02 13:34:16 -05002624 break;
dea31012005-04-17 16:05:31 -05002625 default:
2626 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2627 char adaptermsg[LPFC_MAX_ADPTMSG];
2628 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2629 memcpy(&adaptermsg[0], (uint8_t *) irsp,
2630 MAX_MSG_DATA);
Joe Perches898eb712007-10-18 03:06:30 -07002631 dev_warn(&((phba->pcidev)->dev),
2632 "lpfc%d: %s\n",
dea31012005-04-17 16:05:31 -05002633 phba->brd_no, adaptermsg);
2634 } else {
2635 /* Unknown IOCB command */
2636 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002637 "0334 Unknown IOCB command "
James Smart92d7f7b2007-06-17 19:56:38 -05002638 "Data: x%x, x%x x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04002639 type, irsp->ulpCommand,
James Smart92d7f7b2007-06-17 19:56:38 -05002640 irsp->ulpStatus,
2641 irsp->ulpIoTag,
2642 irsp->ulpContext);
dea31012005-04-17 16:05:31 -05002643 }
2644 break;
2645 }
2646
2647 /*
2648 * The response IOCB has been processed. Update the ring
2649 * pointer in SLIM. If the port response put pointer has not
2650 * been updated, sync the pgp->rspPutInx and fetch the new port
2651 * response put pointer.
2652 */
James Smarted957682007-06-17 19:56:37 -05002653 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002654
2655 if (pring->rspidx == portRspPut)
2656 portRspPut = le32_to_cpu(pgp->rspPutInx);
2657 }
2658
2659 if ((rsp_cmpl > 0) && (mask & HA_R0RE_REQ)) {
2660 pring->stats.iocb_rsp_full++;
2661 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2662 writel(status, phba->CAregaddr);
2663 readl(phba->CAregaddr);
2664 }
2665 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2666 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2667 pring->stats.iocb_cmd_empty++;
2668
2669 /* Force update of the local copy of cmdGetInx */
2670 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2671 lpfc_sli_resume_iocb(phba, pring);
2672
2673 if ((pring->lpfc_sli_cmd_available))
2674 (pring->lpfc_sli_cmd_available) (phba, pring);
2675
2676 }
2677
James Smart2e0fef82007-06-17 19:56:36 -05002678 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002679 return rc;
2680}
2681
James Smarte59058c2008-08-24 21:49:00 -04002682/**
James Smart3772a992009-05-22 14:50:54 -04002683 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2684 * @phba: Pointer to HBA context object.
2685 * @pring: Pointer to driver SLI ring object.
2686 * @rspiocbp: Pointer to driver response IOCB object.
2687 *
2688 * This function is called from the worker thread when there is a slow-path
2689 * response IOCB to process. This function chains all the response iocbs until
2690 * seeing the iocb with the LE bit set. The function will call
2691 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2692 * completion of a command iocb. The function will call the
2693 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2694 * The function frees the resources or calls the completion handler if this
2695 * iocb is an abort completion. The function returns NULL when the response
2696 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2697 * this function shall chain the iocb on to the iocb_continueq and return the
2698 * response iocb passed in.
2699 **/
2700static struct lpfc_iocbq *
2701lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
2702 struct lpfc_iocbq *rspiocbp)
2703{
2704 struct lpfc_iocbq *saveq;
2705 struct lpfc_iocbq *cmdiocbp;
2706 struct lpfc_iocbq *next_iocb;
2707 IOCB_t *irsp = NULL;
2708 uint32_t free_saveq;
2709 uint8_t iocb_cmd_type;
2710 lpfc_iocb_type type;
2711 unsigned long iflag;
2712 int rc;
2713
2714 spin_lock_irqsave(&phba->hbalock, iflag);
2715 /* First add the response iocb to the countinueq list */
2716 list_add_tail(&rspiocbp->list, &(pring->iocb_continueq));
2717 pring->iocb_continueq_cnt++;
2718
2719 /* Now, determine whetehr the list is completed for processing */
2720 irsp = &rspiocbp->iocb;
2721 if (irsp->ulpLe) {
2722 /*
2723 * By default, the driver expects to free all resources
2724 * associated with this iocb completion.
2725 */
2726 free_saveq = 1;
2727 saveq = list_get_first(&pring->iocb_continueq,
2728 struct lpfc_iocbq, list);
2729 irsp = &(saveq->iocb);
2730 list_del_init(&pring->iocb_continueq);
2731 pring->iocb_continueq_cnt = 0;
2732
2733 pring->stats.iocb_rsp++;
2734
2735 /*
2736 * If resource errors reported from HBA, reduce
2737 * queuedepths of the SCSI device.
2738 */
2739 if ((irsp->ulpStatus == IOSTAT_LOCAL_REJECT) &&
2740 (irsp->un.ulpWord[4] == IOERR_NO_RESOURCES)) {
2741 spin_unlock_irqrestore(&phba->hbalock, iflag);
2742 phba->lpfc_rampdown_queue_depth(phba);
2743 spin_lock_irqsave(&phba->hbalock, iflag);
2744 }
2745
2746 if (irsp->ulpStatus) {
2747 /* Rsp ring <ringno> error: IOCB */
2748 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
2749 "0328 Rsp Ring %d error: "
2750 "IOCB Data: "
2751 "x%x x%x x%x x%x "
2752 "x%x x%x x%x x%x "
2753 "x%x x%x x%x x%x "
2754 "x%x x%x x%x x%x\n",
2755 pring->ringno,
2756 irsp->un.ulpWord[0],
2757 irsp->un.ulpWord[1],
2758 irsp->un.ulpWord[2],
2759 irsp->un.ulpWord[3],
2760 irsp->un.ulpWord[4],
2761 irsp->un.ulpWord[5],
2762 *(((uint32_t *) irsp) + 6),
2763 *(((uint32_t *) irsp) + 7),
2764 *(((uint32_t *) irsp) + 8),
2765 *(((uint32_t *) irsp) + 9),
2766 *(((uint32_t *) irsp) + 10),
2767 *(((uint32_t *) irsp) + 11),
2768 *(((uint32_t *) irsp) + 12),
2769 *(((uint32_t *) irsp) + 13),
2770 *(((uint32_t *) irsp) + 14),
2771 *(((uint32_t *) irsp) + 15));
2772 }
2773
2774 /*
2775 * Fetch the IOCB command type and call the correct completion
2776 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2777 * get freed back to the lpfc_iocb_list by the discovery
2778 * kernel thread.
2779 */
2780 iocb_cmd_type = irsp->ulpCommand & CMD_IOCB_MASK;
2781 type = lpfc_sli_iocb_cmd_type(iocb_cmd_type);
2782 switch (type) {
2783 case LPFC_SOL_IOCB:
2784 spin_unlock_irqrestore(&phba->hbalock, iflag);
2785 rc = lpfc_sli_process_sol_iocb(phba, pring, saveq);
2786 spin_lock_irqsave(&phba->hbalock, iflag);
2787 break;
2788
2789 case LPFC_UNSOL_IOCB:
2790 spin_unlock_irqrestore(&phba->hbalock, iflag);
2791 rc = lpfc_sli_process_unsol_iocb(phba, pring, saveq);
2792 spin_lock_irqsave(&phba->hbalock, iflag);
2793 if (!rc)
2794 free_saveq = 0;
2795 break;
2796
2797 case LPFC_ABORT_IOCB:
2798 cmdiocbp = NULL;
2799 if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
2800 cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
2801 saveq);
2802 if (cmdiocbp) {
2803 /* Call the specified completion routine */
2804 if (cmdiocbp->iocb_cmpl) {
2805 spin_unlock_irqrestore(&phba->hbalock,
2806 iflag);
2807 (cmdiocbp->iocb_cmpl)(phba, cmdiocbp,
2808 saveq);
2809 spin_lock_irqsave(&phba->hbalock,
2810 iflag);
2811 } else
2812 __lpfc_sli_release_iocbq(phba,
2813 cmdiocbp);
2814 }
2815 break;
2816
2817 case LPFC_UNKNOWN_IOCB:
2818 if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
2819 char adaptermsg[LPFC_MAX_ADPTMSG];
2820 memset(adaptermsg, 0, LPFC_MAX_ADPTMSG);
2821 memcpy(&adaptermsg[0], (uint8_t *)irsp,
2822 MAX_MSG_DATA);
2823 dev_warn(&((phba->pcidev)->dev),
2824 "lpfc%d: %s\n",
2825 phba->brd_no, adaptermsg);
2826 } else {
2827 /* Unknown IOCB command */
2828 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
2829 "0335 Unknown IOCB "
2830 "command Data: x%x "
2831 "x%x x%x x%x\n",
2832 irsp->ulpCommand,
2833 irsp->ulpStatus,
2834 irsp->ulpIoTag,
2835 irsp->ulpContext);
2836 }
2837 break;
2838 }
2839
2840 if (free_saveq) {
2841 list_for_each_entry_safe(rspiocbp, next_iocb,
2842 &saveq->list, list) {
2843 list_del(&rspiocbp->list);
2844 __lpfc_sli_release_iocbq(phba, rspiocbp);
2845 }
2846 __lpfc_sli_release_iocbq(phba, saveq);
2847 }
2848 rspiocbp = NULL;
2849 }
2850 spin_unlock_irqrestore(&phba->hbalock, iflag);
2851 return rspiocbp;
2852}
2853
2854/**
2855 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
James Smarte59058c2008-08-24 21:49:00 -04002856 * @phba: Pointer to HBA context object.
2857 * @pring: Pointer to driver SLI ring object.
2858 * @mask: Host attention register mask for this ring.
2859 *
James Smart3772a992009-05-22 14:50:54 -04002860 * This routine wraps the actual slow_ring event process routine from the
2861 * API jump table function pointer from the lpfc_hba struct.
James Smarte59058c2008-08-24 21:49:00 -04002862 **/
James Smart3772a992009-05-22 14:50:54 -04002863void
James Smart2e0fef82007-06-17 19:56:36 -05002864lpfc_sli_handle_slow_ring_event(struct lpfc_hba *phba,
2865 struct lpfc_sli_ring *pring, uint32_t mask)
dea31012005-04-17 16:05:31 -05002866{
James Smart3772a992009-05-22 14:50:54 -04002867 phba->lpfc_sli_handle_slow_ring_event(phba, pring, mask);
2868}
2869
2870/**
2871 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2872 * @phba: Pointer to HBA context object.
2873 * @pring: Pointer to driver SLI ring object.
2874 * @mask: Host attention register mask for this ring.
2875 *
2876 * This function is called from the worker thread when there is a ring event
2877 * for non-fcp rings. The caller does not hold any lock. The function will
2878 * remove each response iocb in the response ring and calls the handle
2879 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2880 **/
2881static void
2882lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba *phba,
2883 struct lpfc_sli_ring *pring, uint32_t mask)
2884{
James Smart34b02dc2008-08-24 21:49:55 -04002885 struct lpfc_pgp *pgp;
dea31012005-04-17 16:05:31 -05002886 IOCB_t *entry;
2887 IOCB_t *irsp = NULL;
2888 struct lpfc_iocbq *rspiocbp = NULL;
dea31012005-04-17 16:05:31 -05002889 uint32_t portRspPut, portRspMax;
dea31012005-04-17 16:05:31 -05002890 unsigned long iflag;
James Smart3772a992009-05-22 14:50:54 -04002891 uint32_t status;
dea31012005-04-17 16:05:31 -05002892
James Smart34b02dc2008-08-24 21:49:55 -04002893 pgp = &phba->port_gp[pring->ringno];
James Smart2e0fef82007-06-17 19:56:36 -05002894 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002895 pring->stats.iocb_event++;
2896
dea31012005-04-17 16:05:31 -05002897 /*
2898 * The next available response entry should never exceed the maximum
2899 * entries. If it does, treat it as an adapter hardware error.
2900 */
2901 portRspMax = pring->numRiocb;
2902 portRspPut = le32_to_cpu(pgp->rspPutInx);
2903 if (portRspPut >= portRspMax) {
2904 /*
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002905 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
dea31012005-04-17 16:05:31 -05002906 * rsp ring <portRspMax>
2907 */
James Smarted957682007-06-17 19:56:37 -05002908 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04002909 "0303 Ring %d handler: portRspPut %d "
Frederik Schwarzer025dfda2008-10-16 19:02:37 +02002910 "is bigger than rsp ring %d\n",
James Smarte8b62012007-08-02 11:10:09 -04002911 pring->ringno, portRspPut, portRspMax);
dea31012005-04-17 16:05:31 -05002912
James Smart2e0fef82007-06-17 19:56:36 -05002913 phba->link_state = LPFC_HBA_ERROR;
2914 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002915
2916 phba->work_hs = HS_FFER3;
2917 lpfc_handle_eratt(phba);
2918
James Smart3772a992009-05-22 14:50:54 -04002919 return;
dea31012005-04-17 16:05:31 -05002920 }
2921
2922 rmb();
dea31012005-04-17 16:05:31 -05002923 while (pring->rspidx != portRspPut) {
2924 /*
2925 * Build a completion list and call the appropriate handler.
2926 * The process is to get the next available response iocb, get
2927 * a free iocb from the list, copy the response data into the
2928 * free iocb, insert to the continuation list, and update the
2929 * next response index to slim. This process makes response
2930 * iocb's in the ring available to DMA as fast as possible but
2931 * pays a penalty for a copy operation. Since the iocb is
2932 * only 32 bytes, this penalty is considered small relative to
2933 * the PCI reads for register values and a slim write. When
2934 * the ulpLe field is set, the entire Command has been
2935 * received.
2936 */
James Smarted957682007-06-17 19:56:37 -05002937 entry = lpfc_resp_iocb(phba, pring);
2938
James Smart858c9f62007-06-17 19:56:39 -05002939 phba->last_completion_time = jiffies;
James Smart2e0fef82007-06-17 19:56:36 -05002940 rspiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05002941 if (rspiocbp == NULL) {
2942 printk(KERN_ERR "%s: out of buffers! Failing "
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07002943 "completion.\n", __func__);
dea31012005-04-17 16:05:31 -05002944 break;
2945 }
2946
James Smarted957682007-06-17 19:56:37 -05002947 lpfc_sli_pcimem_bcopy(entry, &rspiocbp->iocb,
2948 phba->iocb_rsp_size);
dea31012005-04-17 16:05:31 -05002949 irsp = &rspiocbp->iocb;
2950
2951 if (++pring->rspidx >= portRspMax)
2952 pring->rspidx = 0;
2953
James Smarta58cbd52007-08-02 11:09:43 -04002954 if (pring->ringno == LPFC_ELS_RING) {
2955 lpfc_debugfs_slow_ring_trc(phba,
2956 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2957 *(((uint32_t *) irsp) + 4),
2958 *(((uint32_t *) irsp) + 6),
2959 *(((uint32_t *) irsp) + 7));
2960 }
2961
James Smarted957682007-06-17 19:56:37 -05002962 writel(pring->rspidx, &phba->host_gp[pring->ringno].rspGetInx);
dea31012005-04-17 16:05:31 -05002963
James Smart3772a992009-05-22 14:50:54 -04002964 spin_unlock_irqrestore(&phba->hbalock, iflag);
2965 /* Handle the response IOCB */
2966 rspiocbp = lpfc_sli_sp_handle_rspiocb(phba, pring, rspiocbp);
2967 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05002968
2969 /*
2970 * If the port response put pointer has not been updated, sync
2971 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2972 * response put pointer.
2973 */
2974 if (pring->rspidx == portRspPut) {
2975 portRspPut = le32_to_cpu(pgp->rspPutInx);
2976 }
2977 } /* while (pring->rspidx != portRspPut) */
2978
James Smart92d7f7b2007-06-17 19:56:38 -05002979 if ((rspiocbp != NULL) && (mask & HA_R0RE_REQ)) {
dea31012005-04-17 16:05:31 -05002980 /* At least one response entry has been freed */
2981 pring->stats.iocb_rsp_full++;
2982 /* SET RxRE_RSP in Chip Att register */
2983 status = ((CA_R0ATT | CA_R0RE_RSP) << (pring->ringno * 4));
2984 writel(status, phba->CAregaddr);
2985 readl(phba->CAregaddr); /* flush */
2986 }
2987 if ((mask & HA_R0CE_RSP) && (pring->flag & LPFC_CALL_RING_AVAILABLE)) {
2988 pring->flag &= ~LPFC_CALL_RING_AVAILABLE;
2989 pring->stats.iocb_cmd_empty++;
2990
2991 /* Force update of the local copy of cmdGetInx */
2992 pring->local_getidx = le32_to_cpu(pgp->cmdGetInx);
2993 lpfc_sli_resume_iocb(phba, pring);
2994
2995 if ((pring->lpfc_sli_cmd_available))
2996 (pring->lpfc_sli_cmd_available) (phba, pring);
2997
2998 }
2999
James Smart2e0fef82007-06-17 19:56:36 -05003000 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart3772a992009-05-22 14:50:54 -04003001 return;
dea31012005-04-17 16:05:31 -05003002}
3003
James Smarte59058c2008-08-24 21:49:00 -04003004/**
James Smart4f774512009-05-22 14:52:35 -04003005 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3006 * @phba: Pointer to HBA context object.
3007 * @pring: Pointer to driver SLI ring object.
3008 * @mask: Host attention register mask for this ring.
3009 *
3010 * This function is called from the worker thread when there is a pending
3011 * ELS response iocb on the driver internal slow-path response iocb worker
3012 * queue. The caller does not hold any lock. The function will remove each
3013 * response iocb from the response worker queue and calls the handle
3014 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3015 **/
3016static void
3017lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba *phba,
3018 struct lpfc_sli_ring *pring, uint32_t mask)
3019{
3020 struct lpfc_iocbq *irspiocbq;
3021 unsigned long iflag;
3022
3023 while (!list_empty(&phba->sli4_hba.sp_rspiocb_work_queue)) {
3024 /* Get the response iocb from the head of work queue */
3025 spin_lock_irqsave(&phba->hbalock, iflag);
3026 list_remove_head(&phba->sli4_hba.sp_rspiocb_work_queue,
3027 irspiocbq, struct lpfc_iocbq, list);
3028 spin_unlock_irqrestore(&phba->hbalock, iflag);
3029 /* Process the response iocb */
3030 lpfc_sli_sp_handle_rspiocb(phba, pring, irspiocbq);
3031 }
3032}
3033
3034/**
James Smart3621a712009-04-06 18:47:14 -04003035 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
James Smarte59058c2008-08-24 21:49:00 -04003036 * @phba: Pointer to HBA context object.
3037 * @pring: Pointer to driver SLI ring object.
3038 *
3039 * This function aborts all iocbs in the given ring and frees all the iocb
3040 * objects in txq. This function issues an abort iocb for all the iocb commands
3041 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3042 * the return of this function. The caller is not required to hold any locks.
3043 **/
James Smart2e0fef82007-06-17 19:56:36 -05003044void
dea31012005-04-17 16:05:31 -05003045lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
3046{
James Smart2534ba72007-04-25 09:52:20 -04003047 LIST_HEAD(completions);
dea31012005-04-17 16:05:31 -05003048 struct lpfc_iocbq *iocb, *next_iocb;
dea31012005-04-17 16:05:31 -05003049
James Smart92d7f7b2007-06-17 19:56:38 -05003050 if (pring->ringno == LPFC_ELS_RING) {
3051 lpfc_fabric_abort_hba(phba);
3052 }
3053
dea31012005-04-17 16:05:31 -05003054 /* Error everything on txq and txcmplq
3055 * First do the txq.
3056 */
James Smart2e0fef82007-06-17 19:56:36 -05003057 spin_lock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003058 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05003059 pring->txq_cnt = 0;
dea31012005-04-17 16:05:31 -05003060
3061 /* Next issue ABTS for everything on the txcmplq */
James Smart2534ba72007-04-25 09:52:20 -04003062 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list)
3063 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
3064
James Smart2e0fef82007-06-17 19:56:36 -05003065 spin_unlock_irq(&phba->hbalock);
James Smart2534ba72007-04-25 09:52:20 -04003066
James Smarta257bf92009-04-06 18:48:10 -04003067 /* Cancel all the IOCBs from the completions list */
3068 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
3069 IOERR_SLI_ABORTED);
dea31012005-04-17 16:05:31 -05003070}
3071
James Smarte59058c2008-08-24 21:49:00 -04003072/**
James Smart3621a712009-04-06 18:47:14 -04003073 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
James Smarta8e497d2008-08-24 21:50:11 -04003074 * @phba: Pointer to HBA context object.
3075 *
3076 * This function flushes all iocbs in the fcp ring and frees all the iocb
3077 * objects in txq and txcmplq. This function will not issue abort iocbs
3078 * for all the iocb commands in txcmplq, they will just be returned with
3079 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3080 * slot has been permanently disabled.
3081 **/
3082void
3083lpfc_sli_flush_fcp_rings(struct lpfc_hba *phba)
3084{
3085 LIST_HEAD(txq);
3086 LIST_HEAD(txcmplq);
James Smarta8e497d2008-08-24 21:50:11 -04003087 struct lpfc_sli *psli = &phba->sli;
3088 struct lpfc_sli_ring *pring;
3089
3090 /* Currently, only one fcp ring */
3091 pring = &psli->ring[psli->fcp_ring];
3092
3093 spin_lock_irq(&phba->hbalock);
3094 /* Retrieve everything on txq */
3095 list_splice_init(&pring->txq, &txq);
3096 pring->txq_cnt = 0;
3097
3098 /* Retrieve everything on the txcmplq */
3099 list_splice_init(&pring->txcmplq, &txcmplq);
3100 pring->txcmplq_cnt = 0;
3101 spin_unlock_irq(&phba->hbalock);
3102
3103 /* Flush the txq */
James Smarta257bf92009-04-06 18:48:10 -04003104 lpfc_sli_cancel_iocbs(phba, &txq, IOSTAT_LOCAL_REJECT,
3105 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003106
3107 /* Flush the txcmpq */
James Smarta257bf92009-04-06 18:48:10 -04003108 lpfc_sli_cancel_iocbs(phba, &txcmplq, IOSTAT_LOCAL_REJECT,
3109 IOERR_SLI_DOWN);
James Smarta8e497d2008-08-24 21:50:11 -04003110}
3111
3112/**
James Smart3772a992009-05-22 14:50:54 -04003113 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
James Smarte59058c2008-08-24 21:49:00 -04003114 * @phba: Pointer to HBA context object.
3115 * @mask: Bit mask to be checked.
3116 *
3117 * This function reads the host status register and compares
3118 * with the provided bit mask to check if HBA completed
3119 * the restart. This function will wait in a loop for the
3120 * HBA to complete restart. If the HBA does not restart within
3121 * 15 iterations, the function will reset the HBA again. The
3122 * function returns 1 when HBA fail to restart otherwise returns
3123 * zero.
3124 **/
James Smart3772a992009-05-22 14:50:54 -04003125static int
3126lpfc_sli_brdready_s3(struct lpfc_hba *phba, uint32_t mask)
dea31012005-04-17 16:05:31 -05003127{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003128 uint32_t status;
3129 int i = 0;
3130 int retval = 0;
dea31012005-04-17 16:05:31 -05003131
Jamie Wellnitz41415862006-02-28 19:25:27 -05003132 /* Read the HBA Host Status Register */
3133 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003134
Jamie Wellnitz41415862006-02-28 19:25:27 -05003135 /*
3136 * Check status register every 100ms for 5 retries, then every
3137 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3138 * every 2.5 sec for 4.
3139 * Break our of the loop if errors occurred during init.
3140 */
3141 while (((status & mask) != mask) &&
3142 !(status & HS_FFERM) &&
3143 i++ < 20) {
dea31012005-04-17 16:05:31 -05003144
Jamie Wellnitz41415862006-02-28 19:25:27 -05003145 if (i <= 5)
3146 msleep(10);
3147 else if (i <= 10)
3148 msleep(500);
3149 else
3150 msleep(2500);
dea31012005-04-17 16:05:31 -05003151
Jamie Wellnitz41415862006-02-28 19:25:27 -05003152 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003153 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003154 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003155 lpfc_sli_brdrestart(phba);
3156 }
3157 /* Read the HBA Host Status Register */
3158 status = readl(phba->HSregaddr);
dea31012005-04-17 16:05:31 -05003159 }
dea31012005-04-17 16:05:31 -05003160
Jamie Wellnitz41415862006-02-28 19:25:27 -05003161 /* Check to see if any errors occurred during init */
3162 if ((status & HS_FFERM) || (i >= 20)) {
James Smart2e0fef82007-06-17 19:56:36 -05003163 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003164 retval = 1;
3165 }
dea31012005-04-17 16:05:31 -05003166
Jamie Wellnitz41415862006-02-28 19:25:27 -05003167 return retval;
dea31012005-04-17 16:05:31 -05003168}
3169
James Smartda0436e2009-05-22 14:51:39 -04003170/**
3171 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3172 * @phba: Pointer to HBA context object.
3173 * @mask: Bit mask to be checked.
3174 *
3175 * This function checks the host status register to check if HBA is
3176 * ready. This function will wait in a loop for the HBA to be ready
3177 * If the HBA is not ready , the function will will reset the HBA PCI
3178 * function again. The function returns 1 when HBA fail to be ready
3179 * otherwise returns zero.
3180 **/
3181static int
3182lpfc_sli_brdready_s4(struct lpfc_hba *phba, uint32_t mask)
3183{
3184 uint32_t status;
3185 int retval = 0;
3186
3187 /* Read the HBA Host Status Register */
3188 status = lpfc_sli4_post_status_check(phba);
3189
3190 if (status) {
3191 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
3192 lpfc_sli_brdrestart(phba);
3193 status = lpfc_sli4_post_status_check(phba);
3194 }
3195
3196 /* Check to see if any errors occurred during init */
3197 if (status) {
3198 phba->link_state = LPFC_HBA_ERROR;
3199 retval = 1;
3200 } else
3201 phba->sli4_hba.intr_enable = 0;
3202
3203 return retval;
3204}
3205
3206/**
3207 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3208 * @phba: Pointer to HBA context object.
3209 * @mask: Bit mask to be checked.
3210 *
3211 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3212 * from the API jump table function pointer from the lpfc_hba struct.
3213 **/
3214int
3215lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
3216{
3217 return phba->lpfc_sli_brdready(phba, mask);
3218}
3219
James Smart92908312006-03-07 15:04:13 -05003220#define BARRIER_TEST_PATTERN (0xdeadbeef)
3221
James Smarte59058c2008-08-24 21:49:00 -04003222/**
James Smart3621a712009-04-06 18:47:14 -04003223 * lpfc_reset_barrier - Make HBA ready for HBA reset
James Smarte59058c2008-08-24 21:49:00 -04003224 * @phba: Pointer to HBA context object.
3225 *
3226 * This function is called before resetting an HBA. This
3227 * function requests HBA to quiesce DMAs before a reset.
3228 **/
James Smart2e0fef82007-06-17 19:56:36 -05003229void lpfc_reset_barrier(struct lpfc_hba *phba)
James Smart92908312006-03-07 15:04:13 -05003230{
James Smart65a29c12006-07-06 15:50:50 -04003231 uint32_t __iomem *resp_buf;
3232 uint32_t __iomem *mbox_buf;
James Smart92908312006-03-07 15:04:13 -05003233 volatile uint32_t mbox;
3234 uint32_t hc_copy;
3235 int i;
3236 uint8_t hdrtype;
3237
3238 pci_read_config_byte(phba->pcidev, PCI_HEADER_TYPE, &hdrtype);
3239 if (hdrtype != 0x80 ||
3240 (FC_JEDEC_ID(phba->vpd.rev.biuRev) != HELIOS_JEDEC_ID &&
3241 FC_JEDEC_ID(phba->vpd.rev.biuRev) != THOR_JEDEC_ID))
3242 return;
3243
3244 /*
3245 * Tell the other part of the chip to suspend temporarily all
3246 * its DMA activity.
3247 */
James Smart65a29c12006-07-06 15:50:50 -04003248 resp_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003249
3250 /* Disable the error attention */
3251 hc_copy = readl(phba->HCregaddr);
3252 writel((hc_copy & ~HC_ERINT_ENA), phba->HCregaddr);
3253 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003254 phba->link_flag |= LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003255
3256 if (readl(phba->HAregaddr) & HA_ERATT) {
3257 /* Clear Chip error bit */
3258 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003259 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003260 }
3261
3262 mbox = 0;
3263 ((MAILBOX_t *)&mbox)->mbxCommand = MBX_KILL_BOARD;
3264 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_CHIP;
3265
3266 writel(BARRIER_TEST_PATTERN, (resp_buf + 1));
James Smart65a29c12006-07-06 15:50:50 -04003267 mbox_buf = phba->MBslimaddr;
James Smart92908312006-03-07 15:04:13 -05003268 writel(mbox, mbox_buf);
3269
3270 for (i = 0;
3271 readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN) && i < 50; i++)
3272 mdelay(1);
3273
3274 if (readl(resp_buf + 1) != ~(BARRIER_TEST_PATTERN)) {
James Smartf4b4c682009-05-22 14:53:12 -04003275 if (phba->sli.sli_flag & LPFC_SLI_ACTIVE ||
James Smart2e0fef82007-06-17 19:56:36 -05003276 phba->pport->stopped)
James Smart92908312006-03-07 15:04:13 -05003277 goto restore_hc;
3278 else
3279 goto clear_errat;
3280 }
3281
3282 ((MAILBOX_t *)&mbox)->mbxOwner = OWN_HOST;
3283 for (i = 0; readl(resp_buf) != mbox && i < 500; i++)
3284 mdelay(1);
3285
3286clear_errat:
3287
3288 while (!(readl(phba->HAregaddr) & HA_ERATT) && ++i < 500)
3289 mdelay(1);
3290
3291 if (readl(phba->HAregaddr) & HA_ERATT) {
3292 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003293 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003294 }
3295
3296restore_hc:
James Smart2e0fef82007-06-17 19:56:36 -05003297 phba->link_flag &= ~LS_IGNORE_ERATT;
James Smart92908312006-03-07 15:04:13 -05003298 writel(hc_copy, phba->HCregaddr);
3299 readl(phba->HCregaddr); /* flush */
3300}
3301
James Smarte59058c2008-08-24 21:49:00 -04003302/**
James Smart3621a712009-04-06 18:47:14 -04003303 * lpfc_sli_brdkill - Issue a kill_board mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003304 * @phba: Pointer to HBA context object.
3305 *
3306 * This function issues a kill_board mailbox command and waits for
3307 * the error attention interrupt. This function is called for stopping
3308 * the firmware processing. The caller is not required to hold any
3309 * locks. This function calls lpfc_hba_down_post function to free
3310 * any pending commands after the kill. The function will return 1 when it
3311 * fails to kill the board else will return 0.
3312 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003313int
James Smart2e0fef82007-06-17 19:56:36 -05003314lpfc_sli_brdkill(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05003315{
Jamie Wellnitz41415862006-02-28 19:25:27 -05003316 struct lpfc_sli *psli;
3317 LPFC_MBOXQ_t *pmb;
3318 uint32_t status;
3319 uint32_t ha_copy;
3320 int retval;
3321 int i = 0;
3322
3323 psli = &phba->sli;
3324
3325 /* Kill HBA */
James Smarted957682007-06-17 19:56:37 -05003326 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003327 "0329 Kill HBA Data: x%x x%x\n",
3328 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003329
James Smart98c9ea52007-10-27 13:37:33 -04003330 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3331 if (!pmb)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003332 return 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003333
3334 /* Disable the error attention */
James Smart2e0fef82007-06-17 19:56:36 -05003335 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003336 status = readl(phba->HCregaddr);
3337 status &= ~HC_ERINT_ENA;
3338 writel(status, phba->HCregaddr);
3339 readl(phba->HCregaddr); /* flush */
James Smart2e0fef82007-06-17 19:56:36 -05003340 phba->link_flag |= LS_IGNORE_ERATT;
3341 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003342
3343 lpfc_kill_board(phba, pmb);
3344 pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
3345 retval = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
3346
3347 if (retval != MBX_SUCCESS) {
3348 if (retval != MBX_BUSY)
3349 mempool_free(pmb, phba->mbox_mem_pool);
James Smart2e0fef82007-06-17 19:56:36 -05003350 spin_lock_irq(&phba->hbalock);
3351 phba->link_flag &= ~LS_IGNORE_ERATT;
3352 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003353 return 1;
3354 }
3355
James Smartf4b4c682009-05-22 14:53:12 -04003356 spin_lock_irq(&phba->hbalock);
3357 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
3358 spin_unlock_irq(&phba->hbalock);
James Smart92908312006-03-07 15:04:13 -05003359
Jamie Wellnitz41415862006-02-28 19:25:27 -05003360 mempool_free(pmb, phba->mbox_mem_pool);
3361
3362 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3363 * attention every 100ms for 3 seconds. If we don't get ERATT after
3364 * 3 seconds we still set HBA_ERROR state because the status of the
3365 * board is now undefined.
3366 */
3367 ha_copy = readl(phba->HAregaddr);
3368
3369 while ((i++ < 30) && !(ha_copy & HA_ERATT)) {
3370 mdelay(100);
3371 ha_copy = readl(phba->HAregaddr);
3372 }
3373
3374 del_timer_sync(&psli->mbox_tmo);
James Smart92908312006-03-07 15:04:13 -05003375 if (ha_copy & HA_ERATT) {
3376 writel(HA_ERATT, phba->HAregaddr);
James Smart2e0fef82007-06-17 19:56:36 -05003377 phba->pport->stopped = 1;
James Smart92908312006-03-07 15:04:13 -05003378 }
James Smart2e0fef82007-06-17 19:56:36 -05003379 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003380 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart04c68492009-05-22 14:52:52 -04003381 psli->mbox_active = NULL;
James Smart2e0fef82007-06-17 19:56:36 -05003382 phba->link_flag &= ~LS_IGNORE_ERATT;
3383 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003384
Jamie Wellnitz41415862006-02-28 19:25:27 -05003385 lpfc_hba_down_post(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003386 phba->link_state = LPFC_HBA_ERROR;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003387
James Smart2e0fef82007-06-17 19:56:36 -05003388 return ha_copy & HA_ERATT ? 0 : 1;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003389}
3390
James Smarte59058c2008-08-24 21:49:00 -04003391/**
James Smart3772a992009-05-22 14:50:54 -04003392 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
James Smarte59058c2008-08-24 21:49:00 -04003393 * @phba: Pointer to HBA context object.
3394 *
3395 * This function resets the HBA by writing HC_INITFF to the control
3396 * register. After the HBA resets, this function resets all the iocb ring
3397 * indices. This function disables PCI layer parity checking during
3398 * the reset.
3399 * This function returns 0 always.
3400 * The caller is not required to hold any locks.
3401 **/
Jamie Wellnitz41415862006-02-28 19:25:27 -05003402int
James Smart2e0fef82007-06-17 19:56:36 -05003403lpfc_sli_brdreset(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003404{
3405 struct lpfc_sli *psli;
dea31012005-04-17 16:05:31 -05003406 struct lpfc_sli_ring *pring;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003407 uint16_t cfg_value;
dea31012005-04-17 16:05:31 -05003408 int i;
dea31012005-04-17 16:05:31 -05003409
Jamie Wellnitz41415862006-02-28 19:25:27 -05003410 psli = &phba->sli;
dea31012005-04-17 16:05:31 -05003411
Jamie Wellnitz41415862006-02-28 19:25:27 -05003412 /* Reset HBA */
3413 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003414 "0325 Reset HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003415 phba->pport->port_state, psli->sli_flag);
dea31012005-04-17 16:05:31 -05003416
3417 /* perform board reset */
3418 phba->fc_eventTag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003419 phba->pport->fc_myDID = 0;
3420 phba->pport->fc_prevDID = 0;
dea31012005-04-17 16:05:31 -05003421
Jamie Wellnitz41415862006-02-28 19:25:27 -05003422 /* Turn off parity checking and serr during the physical reset */
3423 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3424 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3425 (cfg_value &
3426 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3427
James Smart3772a992009-05-22 14:50:54 -04003428 psli->sli_flag &= ~(LPFC_SLI_ACTIVE | LPFC_PROCESS_LA);
3429
Jamie Wellnitz41415862006-02-28 19:25:27 -05003430 /* Now toggle INITFF bit in the Host Control Register */
3431 writel(HC_INITFF, phba->HCregaddr);
3432 mdelay(1);
3433 readl(phba->HCregaddr); /* flush */
3434 writel(0, phba->HCregaddr);
3435 readl(phba->HCregaddr); /* flush */
3436
3437 /* Restore PCI cmd register */
3438 pci_write_config_word(phba->pcidev, PCI_COMMAND, cfg_value);
dea31012005-04-17 16:05:31 -05003439
3440 /* Initialize relevant SLI info */
Jamie Wellnitz41415862006-02-28 19:25:27 -05003441 for (i = 0; i < psli->num_rings; i++) {
3442 pring = &psli->ring[i];
dea31012005-04-17 16:05:31 -05003443 pring->flag = 0;
3444 pring->rspidx = 0;
3445 pring->next_cmdidx = 0;
3446 pring->local_getidx = 0;
3447 pring->cmdidx = 0;
3448 pring->missbufcnt = 0;
3449 }
dea31012005-04-17 16:05:31 -05003450
James Smart2e0fef82007-06-17 19:56:36 -05003451 phba->link_state = LPFC_WARM_START;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003452 return 0;
3453}
3454
James Smarte59058c2008-08-24 21:49:00 -04003455/**
James Smartda0436e2009-05-22 14:51:39 -04003456 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3457 * @phba: Pointer to HBA context object.
3458 *
3459 * This function resets a SLI4 HBA. This function disables PCI layer parity
3460 * checking during resets the device. The caller is not required to hold
3461 * any locks.
3462 *
3463 * This function returns 0 always.
3464 **/
3465int
3466lpfc_sli4_brdreset(struct lpfc_hba *phba)
3467{
3468 struct lpfc_sli *psli = &phba->sli;
3469 uint16_t cfg_value;
3470 uint8_t qindx;
3471
3472 /* Reset HBA */
3473 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3474 "0295 Reset HBA Data: x%x x%x\n",
3475 phba->pport->port_state, psli->sli_flag);
3476
3477 /* perform board reset */
3478 phba->fc_eventTag = 0;
3479 phba->pport->fc_myDID = 0;
3480 phba->pport->fc_prevDID = 0;
3481
3482 /* Turn off parity checking and serr during the physical reset */
3483 pci_read_config_word(phba->pcidev, PCI_COMMAND, &cfg_value);
3484 pci_write_config_word(phba->pcidev, PCI_COMMAND,
3485 (cfg_value &
3486 ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
3487
3488 spin_lock_irq(&phba->hbalock);
3489 psli->sli_flag &= ~(LPFC_PROCESS_LA);
3490 phba->fcf.fcf_flag = 0;
3491 /* Clean up the child queue list for the CQs */
3492 list_del_init(&phba->sli4_hba.mbx_wq->list);
3493 list_del_init(&phba->sli4_hba.els_wq->list);
3494 list_del_init(&phba->sli4_hba.hdr_rq->list);
3495 list_del_init(&phba->sli4_hba.dat_rq->list);
3496 list_del_init(&phba->sli4_hba.mbx_cq->list);
3497 list_del_init(&phba->sli4_hba.els_cq->list);
3498 list_del_init(&phba->sli4_hba.rxq_cq->list);
3499 for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
3500 list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
3501 for (qindx = 0; qindx < phba->cfg_fcp_eq_count; qindx++)
3502 list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
3503 spin_unlock_irq(&phba->hbalock);
3504
3505 /* Now physically reset the device */
3506 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
3507 "0389 Performing PCI function reset!\n");
3508 /* Perform FCoE PCI function reset */
3509 lpfc_pci_function_reset(phba);
3510
3511 return 0;
3512}
3513
3514/**
3515 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
James Smarte59058c2008-08-24 21:49:00 -04003516 * @phba: Pointer to HBA context object.
3517 *
3518 * This function is called in the SLI initialization code path to
3519 * restart the HBA. The caller is not required to hold any lock.
3520 * This function writes MBX_RESTART mailbox command to the SLIM and
3521 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3522 * function to free any pending commands. The function enables
3523 * POST only during the first initialization. The function returns zero.
3524 * The function does not guarantee completion of MBX_RESTART mailbox
3525 * command before the return of this function.
3526 **/
James Smartda0436e2009-05-22 14:51:39 -04003527static int
3528lpfc_sli_brdrestart_s3(struct lpfc_hba *phba)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003529{
3530 MAILBOX_t *mb;
3531 struct lpfc_sli *psli;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003532 volatile uint32_t word0;
3533 void __iomem *to_slim;
3534
James Smart2e0fef82007-06-17 19:56:36 -05003535 spin_lock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003536
3537 psli = &phba->sli;
3538
3539 /* Restart HBA */
3540 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04003541 "0337 Restart HBA Data: x%x x%x\n",
James Smart2e0fef82007-06-17 19:56:36 -05003542 phba->pport->port_state, psli->sli_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003543
3544 word0 = 0;
3545 mb = (MAILBOX_t *) &word0;
3546 mb->mbxCommand = MBX_RESTART;
3547 mb->mbxHc = 1;
3548
James Smart92908312006-03-07 15:04:13 -05003549 lpfc_reset_barrier(phba);
3550
Jamie Wellnitz41415862006-02-28 19:25:27 -05003551 to_slim = phba->MBslimaddr;
3552 writel(*(uint32_t *) mb, to_slim);
3553 readl(to_slim); /* flush */
3554
3555 /* Only skip post after fc_ffinit is completed */
James Smarteaf15d52008-12-04 22:39:29 -05003556 if (phba->pport->port_state)
Jamie Wellnitz41415862006-02-28 19:25:27 -05003557 word0 = 1; /* This is really setting up word1 */
James Smarteaf15d52008-12-04 22:39:29 -05003558 else
Jamie Wellnitz41415862006-02-28 19:25:27 -05003559 word0 = 0; /* This is really setting up word1 */
James Smart65a29c12006-07-06 15:50:50 -04003560 to_slim = phba->MBslimaddr + sizeof (uint32_t);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003561 writel(*(uint32_t *) mb, to_slim);
3562 readl(to_slim); /* flush */
3563
3564 lpfc_sli_brdreset(phba);
James Smart2e0fef82007-06-17 19:56:36 -05003565 phba->pport->stopped = 0;
3566 phba->link_state = LPFC_INIT_START;
James Smartda0436e2009-05-22 14:51:39 -04003567 phba->hba_flag = 0;
James Smart2e0fef82007-06-17 19:56:36 -05003568 spin_unlock_irq(&phba->hbalock);
Jamie Wellnitz41415862006-02-28 19:25:27 -05003569
James Smart64ba8812006-08-02 15:24:34 -04003570 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3571 psli->stats_start = get_seconds();
3572
James Smarteaf15d52008-12-04 22:39:29 -05003573 /* Give the INITFF and Post time to settle. */
3574 mdelay(100);
dea31012005-04-17 16:05:31 -05003575
Jamie Wellnitz41415862006-02-28 19:25:27 -05003576 lpfc_hba_down_post(phba);
dea31012005-04-17 16:05:31 -05003577
3578 return 0;
3579}
3580
James Smarte59058c2008-08-24 21:49:00 -04003581/**
James Smartda0436e2009-05-22 14:51:39 -04003582 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3583 * @phba: Pointer to HBA context object.
3584 *
3585 * This function is called in the SLI initialization code path to restart
3586 * a SLI4 HBA. The caller is not required to hold any lock.
3587 * At the end of the function, it calls lpfc_hba_down_post function to
3588 * free any pending commands.
3589 **/
3590static int
3591lpfc_sli_brdrestart_s4(struct lpfc_hba *phba)
3592{
3593 struct lpfc_sli *psli = &phba->sli;
3594
3595
3596 /* Restart HBA */
3597 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
3598 "0296 Restart HBA Data: x%x x%x\n",
3599 phba->pport->port_state, psli->sli_flag);
3600
3601 lpfc_sli4_brdreset(phba);
3602
3603 spin_lock_irq(&phba->hbalock);
3604 phba->pport->stopped = 0;
3605 phba->link_state = LPFC_INIT_START;
3606 phba->hba_flag = 0;
3607 spin_unlock_irq(&phba->hbalock);
3608
3609 memset(&psli->lnk_stat_offsets, 0, sizeof(psli->lnk_stat_offsets));
3610 psli->stats_start = get_seconds();
3611
3612 lpfc_hba_down_post(phba);
3613
3614 return 0;
3615}
3616
3617/**
3618 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3619 * @phba: Pointer to HBA context object.
3620 *
3621 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3622 * API jump table function pointer from the lpfc_hba struct.
3623**/
3624int
3625lpfc_sli_brdrestart(struct lpfc_hba *phba)
3626{
3627 return phba->lpfc_sli_brdrestart(phba);
3628}
3629
3630/**
James Smart3621a712009-04-06 18:47:14 -04003631 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
James Smarte59058c2008-08-24 21:49:00 -04003632 * @phba: Pointer to HBA context object.
3633 *
3634 * This function is called after a HBA restart to wait for successful
3635 * restart of the HBA. Successful restart of the HBA is indicated by
3636 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3637 * iteration, the function will restart the HBA again. The function returns
3638 * zero if HBA successfully restarted else returns negative error code.
3639 **/
dea31012005-04-17 16:05:31 -05003640static int
3641lpfc_sli_chipset_init(struct lpfc_hba *phba)
3642{
3643 uint32_t status, i = 0;
3644
3645 /* Read the HBA Host Status Register */
3646 status = readl(phba->HSregaddr);
3647
3648 /* Check status register to see what current state is */
3649 i = 0;
3650 while ((status & (HS_FFRDY | HS_MBRDY)) != (HS_FFRDY | HS_MBRDY)) {
3651
3652 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3653 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3654 * 4.
3655 */
3656 if (i++ >= 20) {
3657 /* Adapter failed to init, timeout, status reg
3658 <status> */
James Smarted957682007-06-17 19:56:37 -05003659 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003660 "0436 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003661 "timeout, status reg x%x, "
3662 "FW Data: A8 x%x AC x%x\n", status,
3663 readl(phba->MBslimaddr + 0xa8),
3664 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003665 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003666 return -ETIMEDOUT;
3667 }
3668
3669 /* Check to see if any errors occurred during init */
3670 if (status & HS_FFERM) {
3671 /* ERROR: During chipset initialization */
3672 /* Adapter failed to init, chipset, status reg
3673 <status> */
James Smarted957682007-06-17 19:56:37 -05003674 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003675 "0437 Adapter failed to init, "
James Smart09372822008-01-11 01:52:54 -05003676 "chipset, status reg x%x, "
3677 "FW Data: A8 x%x AC x%x\n", status,
3678 readl(phba->MBslimaddr + 0xa8),
3679 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003680 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003681 return -EIO;
3682 }
3683
3684 if (i <= 5) {
3685 msleep(10);
3686 } else if (i <= 10) {
3687 msleep(500);
3688 } else {
3689 msleep(2500);
3690 }
3691
3692 if (i == 15) {
James Smart2e0fef82007-06-17 19:56:36 -05003693 /* Do post */
James Smart92d7f7b2007-06-17 19:56:38 -05003694 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003695 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003696 }
3697 /* Read the HBA Host Status Register */
3698 status = readl(phba->HSregaddr);
3699 }
3700
3701 /* Check to see if any errors occurred during init */
3702 if (status & HS_FFERM) {
3703 /* ERROR: During chipset initialization */
3704 /* Adapter failed to init, chipset, status reg <status> */
James Smarted957682007-06-17 19:56:37 -05003705 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003706 "0438 Adapter failed to init, chipset, "
James Smart09372822008-01-11 01:52:54 -05003707 "status reg x%x, "
3708 "FW Data: A8 x%x AC x%x\n", status,
3709 readl(phba->MBslimaddr + 0xa8),
3710 readl(phba->MBslimaddr + 0xac));
James Smart2e0fef82007-06-17 19:56:36 -05003711 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003712 return -EIO;
3713 }
3714
3715 /* Clear all interrupt enable conditions */
3716 writel(0, phba->HCregaddr);
3717 readl(phba->HCregaddr); /* flush */
3718
3719 /* setup host attn register */
3720 writel(0xffffffff, phba->HAregaddr);
3721 readl(phba->HAregaddr); /* flush */
3722 return 0;
3723}
3724
James Smarte59058c2008-08-24 21:49:00 -04003725/**
James Smart3621a712009-04-06 18:47:14 -04003726 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
James Smarte59058c2008-08-24 21:49:00 -04003727 *
3728 * This function calculates and returns the number of HBQs required to be
3729 * configured.
3730 **/
James Smart78b2d852007-08-02 11:10:21 -04003731int
James Smarted957682007-06-17 19:56:37 -05003732lpfc_sli_hbq_count(void)
3733{
James Smart92d7f7b2007-06-17 19:56:38 -05003734 return ARRAY_SIZE(lpfc_hbq_defs);
James Smarted957682007-06-17 19:56:37 -05003735}
3736
James Smarte59058c2008-08-24 21:49:00 -04003737/**
James Smart3621a712009-04-06 18:47:14 -04003738 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003739 *
3740 * This function adds the number of hbq entries in every HBQ to get
3741 * the total number of hbq entries required for the HBA and returns
3742 * the total count.
3743 **/
James Smarted957682007-06-17 19:56:37 -05003744static int
3745lpfc_sli_hbq_entry_count(void)
3746{
3747 int hbq_count = lpfc_sli_hbq_count();
3748 int count = 0;
3749 int i;
3750
3751 for (i = 0; i < hbq_count; ++i)
James Smart92d7f7b2007-06-17 19:56:38 -05003752 count += lpfc_hbq_defs[i]->entry_count;
James Smarted957682007-06-17 19:56:37 -05003753 return count;
3754}
3755
James Smarte59058c2008-08-24 21:49:00 -04003756/**
James Smart3621a712009-04-06 18:47:14 -04003757 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
James Smarte59058c2008-08-24 21:49:00 -04003758 *
3759 * This function calculates amount of memory required for all hbq entries
3760 * to be configured and returns the total memory required.
3761 **/
dea31012005-04-17 16:05:31 -05003762int
James Smarted957682007-06-17 19:56:37 -05003763lpfc_sli_hbq_size(void)
3764{
3765 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry);
3766}
3767
James Smarte59058c2008-08-24 21:49:00 -04003768/**
James Smart3621a712009-04-06 18:47:14 -04003769 * lpfc_sli_hbq_setup - configure and initialize HBQs
James Smarte59058c2008-08-24 21:49:00 -04003770 * @phba: Pointer to HBA context object.
3771 *
3772 * This function is called during the SLI initialization to configure
3773 * all the HBQs and post buffers to the HBQ. The caller is not
3774 * required to hold any locks. This function will return zero if successful
3775 * else it will return negative error code.
3776 **/
James Smarted957682007-06-17 19:56:37 -05003777static int
3778lpfc_sli_hbq_setup(struct lpfc_hba *phba)
3779{
3780 int hbq_count = lpfc_sli_hbq_count();
3781 LPFC_MBOXQ_t *pmb;
3782 MAILBOX_t *pmbox;
3783 uint32_t hbqno;
3784 uint32_t hbq_entry_index;
James Smarted957682007-06-17 19:56:37 -05003785
James Smart92d7f7b2007-06-17 19:56:38 -05003786 /* Get a Mailbox buffer to setup mailbox
3787 * commands for HBA initialization
3788 */
James Smarted957682007-06-17 19:56:37 -05003789 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3790
3791 if (!pmb)
3792 return -ENOMEM;
3793
James Smart04c68492009-05-22 14:52:52 -04003794 pmbox = &pmb->u.mb;
James Smarted957682007-06-17 19:56:37 -05003795
3796 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3797 phba->link_state = LPFC_INIT_MBX_CMDS;
James Smart3163f722008-02-08 18:50:25 -05003798 phba->hbq_in_use = 1;
James Smarted957682007-06-17 19:56:37 -05003799
3800 hbq_entry_index = 0;
3801 for (hbqno = 0; hbqno < hbq_count; ++hbqno) {
3802 phba->hbqs[hbqno].next_hbqPutIdx = 0;
3803 phba->hbqs[hbqno].hbqPutIdx = 0;
3804 phba->hbqs[hbqno].local_hbqGetIdx = 0;
3805 phba->hbqs[hbqno].entry_count =
James Smart92d7f7b2007-06-17 19:56:38 -05003806 lpfc_hbq_defs[hbqno]->entry_count;
James Smart51ef4c22007-08-02 11:10:31 -04003807 lpfc_config_hbq(phba, hbqno, lpfc_hbq_defs[hbqno],
3808 hbq_entry_index, pmb);
James Smarted957682007-06-17 19:56:37 -05003809 hbq_entry_index += phba->hbqs[hbqno].entry_count;
3810
3811 if (lpfc_sli_issue_mbox(phba, pmb, MBX_POLL) != MBX_SUCCESS) {
3812 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3813 mbxStatus <status>, ring <num> */
3814
3815 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05003816 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04003817 "1805 Adapter failed to init. "
James Smarted957682007-06-17 19:56:37 -05003818 "Data: x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04003819 pmbox->mbxCommand,
James Smarted957682007-06-17 19:56:37 -05003820 pmbox->mbxStatus, hbqno);
3821
3822 phba->link_state = LPFC_HBA_ERROR;
3823 mempool_free(pmb, phba->mbox_mem_pool);
James Smarted957682007-06-17 19:56:37 -05003824 return ENXIO;
3825 }
3826 }
3827 phba->hbq_count = hbq_count;
3828
James Smarted957682007-06-17 19:56:37 -05003829 mempool_free(pmb, phba->mbox_mem_pool);
3830
James Smart92d7f7b2007-06-17 19:56:38 -05003831 /* Initially populate or replenish the HBQs */
James Smartd7c255b2008-08-24 21:50:00 -04003832 for (hbqno = 0; hbqno < hbq_count; ++hbqno)
3833 lpfc_sli_hbqbuf_init_hbqs(phba, hbqno);
James Smarted957682007-06-17 19:56:37 -05003834 return 0;
3835}
3836
James Smarte59058c2008-08-24 21:49:00 -04003837/**
James Smart4f774512009-05-22 14:52:35 -04003838 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3839 * @phba: Pointer to HBA context object.
3840 *
3841 * This function is called during the SLI initialization to configure
3842 * all the HBQs and post buffers to the HBQ. The caller is not
3843 * required to hold any locks. This function will return zero if successful
3844 * else it will return negative error code.
3845 **/
3846static int
3847lpfc_sli4_rb_setup(struct lpfc_hba *phba)
3848{
3849 phba->hbq_in_use = 1;
3850 phba->hbqs[0].entry_count = lpfc_hbq_defs[0]->entry_count;
3851 phba->hbq_count = 1;
3852 /* Initially populate or replenish the HBQs */
3853 lpfc_sli_hbqbuf_init_hbqs(phba, 0);
3854 return 0;
3855}
3856
3857/**
James Smart3621a712009-04-06 18:47:14 -04003858 * lpfc_sli_config_port - Issue config port mailbox command
James Smarte59058c2008-08-24 21:49:00 -04003859 * @phba: Pointer to HBA context object.
3860 * @sli_mode: sli mode - 2/3
3861 *
3862 * This function is called by the sli intialization code path
3863 * to issue config_port mailbox command. This function restarts the
3864 * HBA firmware and issues a config_port mailbox command to configure
3865 * the SLI interface in the sli mode specified by sli_mode
3866 * variable. The caller is not required to hold any locks.
3867 * The function returns 0 if successful, else returns negative error
3868 * code.
3869 **/
James Smart93996272008-08-24 21:50:30 -04003870int
3871lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
dea31012005-04-17 16:05:31 -05003872{
3873 LPFC_MBOXQ_t *pmb;
3874 uint32_t resetcount = 0, rc = 0, done = 0;
3875
3876 pmb = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
3877 if (!pmb) {
James Smart2e0fef82007-06-17 19:56:36 -05003878 phba->link_state = LPFC_HBA_ERROR;
dea31012005-04-17 16:05:31 -05003879 return -ENOMEM;
3880 }
3881
James Smarted957682007-06-17 19:56:37 -05003882 phba->sli_rev = sli_mode;
dea31012005-04-17 16:05:31 -05003883 while (resetcount < 2 && !done) {
James Smart2e0fef82007-06-17 19:56:36 -05003884 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003885 phba->sli.sli_flag |= LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003886 spin_unlock_irq(&phba->hbalock);
James Smart92d7f7b2007-06-17 19:56:38 -05003887 phba->pport->port_state = LPFC_VPORT_UNKNOWN;
Jamie Wellnitz41415862006-02-28 19:25:27 -05003888 lpfc_sli_brdrestart(phba);
dea31012005-04-17 16:05:31 -05003889 rc = lpfc_sli_chipset_init(phba);
3890 if (rc)
3891 break;
3892
James Smart2e0fef82007-06-17 19:56:36 -05003893 spin_lock_irq(&phba->hbalock);
James Smart1c067a42006-08-01 07:33:52 -04003894 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003895 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05003896 resetcount++;
3897
James Smarted957682007-06-17 19:56:37 -05003898 /* Call pre CONFIG_PORT mailbox command initialization. A
3899 * value of 0 means the call was successful. Any other
3900 * nonzero value is a failure, but if ERESTART is returned,
3901 * the driver may reset the HBA and try again.
3902 */
dea31012005-04-17 16:05:31 -05003903 rc = lpfc_config_port_prep(phba);
3904 if (rc == -ERESTART) {
James Smarted957682007-06-17 19:56:37 -05003905 phba->link_state = LPFC_LINK_UNKNOWN;
dea31012005-04-17 16:05:31 -05003906 continue;
James Smart34b02dc2008-08-24 21:49:55 -04003907 } else if (rc)
dea31012005-04-17 16:05:31 -05003908 break;
James Smart2e0fef82007-06-17 19:56:36 -05003909 phba->link_state = LPFC_INIT_MBX_CMDS;
dea31012005-04-17 16:05:31 -05003910 lpfc_config_port(phba, pmb);
3911 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
James Smart34b02dc2008-08-24 21:49:55 -04003912 phba->sli3_options &= ~(LPFC_SLI3_NPIV_ENABLED |
3913 LPFC_SLI3_HBQ_ENABLED |
3914 LPFC_SLI3_CRP_ENABLED |
James Smarte2a0a9d2008-12-04 22:40:02 -05003915 LPFC_SLI3_INB_ENABLED |
3916 LPFC_SLI3_BG_ENABLED);
James Smarted957682007-06-17 19:56:37 -05003917 if (rc != MBX_SUCCESS) {
dea31012005-04-17 16:05:31 -05003918 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04003919 "0442 Adapter failed to init, mbxCmd x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05003920 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
James Smart04c68492009-05-22 14:52:52 -04003921 pmb->u.mb.mbxCommand, pmb->u.mb.mbxStatus, 0);
James Smart2e0fef82007-06-17 19:56:36 -05003922 spin_lock_irq(&phba->hbalock);
James Smart04c68492009-05-22 14:52:52 -04003923 phba->sli.sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05003924 spin_unlock_irq(&phba->hbalock);
3925 rc = -ENXIO;
James Smart04c68492009-05-22 14:52:52 -04003926 } else {
3927 /* Allow asynchronous mailbox command to go through */
3928 spin_lock_irq(&phba->hbalock);
3929 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
3930 spin_unlock_irq(&phba->hbalock);
James Smarted957682007-06-17 19:56:37 -05003931 done = 1;
James Smart04c68492009-05-22 14:52:52 -04003932 }
dea31012005-04-17 16:05:31 -05003933 }
James Smarted957682007-06-17 19:56:37 -05003934 if (!done) {
3935 rc = -EINVAL;
3936 goto do_prep_failed;
3937 }
James Smart04c68492009-05-22 14:52:52 -04003938 if (pmb->u.mb.un.varCfgPort.sli_mode == 3) {
3939 if (!pmb->u.mb.un.varCfgPort.cMA) {
James Smart34b02dc2008-08-24 21:49:55 -04003940 rc = -ENXIO;
3941 goto do_prep_failed;
3942 }
James Smart04c68492009-05-22 14:52:52 -04003943 if (phba->max_vpi && pmb->u.mb.un.varCfgPort.gmv) {
James Smart34b02dc2008-08-24 21:49:55 -04003944 phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003945 phba->max_vpi = pmb->u.mb.un.varCfgPort.max_vpi;
3946 phba->max_vports = (phba->max_vpi > phba->max_vports) ?
3947 phba->max_vpi : phba->max_vports;
3948
James Smart34b02dc2008-08-24 21:49:55 -04003949 } else
3950 phba->max_vpi = 0;
James Smart04c68492009-05-22 14:52:52 -04003951 if (pmb->u.mb.un.varCfgPort.gdss)
3952 phba->sli3_options |= LPFC_SLI3_DSS_ENABLED;
3953 if (pmb->u.mb.un.varCfgPort.gerbm)
James Smart34b02dc2008-08-24 21:49:55 -04003954 phba->sli3_options |= LPFC_SLI3_HBQ_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003955 if (pmb->u.mb.un.varCfgPort.gcrp)
James Smart34b02dc2008-08-24 21:49:55 -04003956 phba->sli3_options |= LPFC_SLI3_CRP_ENABLED;
James Smart04c68492009-05-22 14:52:52 -04003957 if (pmb->u.mb.un.varCfgPort.ginb) {
James Smart34b02dc2008-08-24 21:49:55 -04003958 phba->sli3_options |= LPFC_SLI3_INB_ENABLED;
James Smart8f34f4c2008-12-04 22:39:23 -05003959 phba->hbq_get = phba->mbox->us.s3_inb_pgp.hbq_get;
James Smart34b02dc2008-08-24 21:49:55 -04003960 phba->port_gp = phba->mbox->us.s3_inb_pgp.port;
3961 phba->inb_ha_copy = &phba->mbox->us.s3_inb_pgp.ha_copy;
3962 phba->inb_counter = &phba->mbox->us.s3_inb_pgp.counter;
3963 phba->inb_last_counter =
3964 phba->mbox->us.s3_inb_pgp.counter;
3965 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05003966 phba->hbq_get = phba->mbox->us.s3_pgp.hbq_get;
James Smart34b02dc2008-08-24 21:49:55 -04003967 phba->port_gp = phba->mbox->us.s3_pgp.port;
3968 phba->inb_ha_copy = NULL;
3969 phba->inb_counter = NULL;
3970 }
James Smarte2a0a9d2008-12-04 22:40:02 -05003971
3972 if (phba->cfg_enable_bg) {
James Smart04c68492009-05-22 14:52:52 -04003973 if (pmb->u.mb.un.varCfgPort.gbg)
James Smarte2a0a9d2008-12-04 22:40:02 -05003974 phba->sli3_options |= LPFC_SLI3_BG_ENABLED;
3975 else
3976 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
3977 "0443 Adapter did not grant "
3978 "BlockGuard\n");
3979 }
James Smart34b02dc2008-08-24 21:49:55 -04003980 } else {
James Smart8f34f4c2008-12-04 22:39:23 -05003981 phba->hbq_get = NULL;
James Smart34b02dc2008-08-24 21:49:55 -04003982 phba->port_gp = phba->mbox->us.s2.port;
3983 phba->inb_ha_copy = NULL;
3984 phba->inb_counter = NULL;
James Smartd7c255b2008-08-24 21:50:00 -04003985 phba->max_vpi = 0;
James Smarted957682007-06-17 19:56:37 -05003986 }
James Smart92d7f7b2007-06-17 19:56:38 -05003987do_prep_failed:
James Smarted957682007-06-17 19:56:37 -05003988 mempool_free(pmb, phba->mbox_mem_pool);
3989 return rc;
3990}
3991
James Smarte59058c2008-08-24 21:49:00 -04003992
3993/**
James Smart3621a712009-04-06 18:47:14 -04003994 * lpfc_sli_hba_setup - SLI intialization function
James Smarte59058c2008-08-24 21:49:00 -04003995 * @phba: Pointer to HBA context object.
3996 *
3997 * This function is the main SLI intialization function. This function
3998 * is called by the HBA intialization code, HBA reset code and HBA
3999 * error attention handler code. Caller is not required to hold any
4000 * locks. This function issues config_port mailbox command to configure
4001 * the SLI, setup iocb rings and HBQ rings. In the end the function
4002 * calls the config_port_post function to issue init_link mailbox
4003 * command and to start the discovery. The function will return zero
4004 * if successful, else it will return negative error code.
4005 **/
James Smarted957682007-06-17 19:56:37 -05004006int
4007lpfc_sli_hba_setup(struct lpfc_hba *phba)
4008{
4009 uint32_t rc;
James Smart92d7f7b2007-06-17 19:56:38 -05004010 int mode = 3;
James Smarted957682007-06-17 19:56:37 -05004011
4012 switch (lpfc_sli_mode) {
4013 case 2:
James Smart78b2d852007-08-02 11:10:21 -04004014 if (phba->cfg_enable_npiv) {
James Smart92d7f7b2007-06-17 19:56:38 -05004015 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004016 "1824 NPIV enabled: Override lpfc_sli_mode "
James Smart92d7f7b2007-06-17 19:56:38 -05004017 "parameter (%d) to auto (0).\n",
James Smarte8b62012007-08-02 11:10:09 -04004018 lpfc_sli_mode);
James Smart92d7f7b2007-06-17 19:56:38 -05004019 break;
4020 }
James Smarted957682007-06-17 19:56:37 -05004021 mode = 2;
4022 break;
4023 case 0:
4024 case 3:
4025 break;
4026 default:
James Smart92d7f7b2007-06-17 19:56:38 -05004027 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004028 "1819 Unrecognized lpfc_sli_mode "
4029 "parameter: %d.\n", lpfc_sli_mode);
James Smarted957682007-06-17 19:56:37 -05004030
4031 break;
4032 }
4033
James Smart93996272008-08-24 21:50:30 -04004034 rc = lpfc_sli_config_port(phba, mode);
4035
James Smarted957682007-06-17 19:56:37 -05004036 if (rc && lpfc_sli_mode == 3)
James Smart92d7f7b2007-06-17 19:56:38 -05004037 lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004038 "1820 Unable to select SLI-3. "
4039 "Not supported by adapter.\n");
James Smarted957682007-06-17 19:56:37 -05004040 if (rc && mode != 2)
James Smart93996272008-08-24 21:50:30 -04004041 rc = lpfc_sli_config_port(phba, 2);
James Smarted957682007-06-17 19:56:37 -05004042 if (rc)
dea31012005-04-17 16:05:31 -05004043 goto lpfc_sli_hba_setup_error;
4044
James Smarted957682007-06-17 19:56:37 -05004045 if (phba->sli_rev == 3) {
4046 phba->iocb_cmd_size = SLI3_IOCB_CMD_SIZE;
4047 phba->iocb_rsp_size = SLI3_IOCB_RSP_SIZE;
James Smarted957682007-06-17 19:56:37 -05004048 } else {
4049 phba->iocb_cmd_size = SLI2_IOCB_CMD_SIZE;
4050 phba->iocb_rsp_size = SLI2_IOCB_RSP_SIZE;
James Smart92d7f7b2007-06-17 19:56:38 -05004051 phba->sli3_options = 0;
James Smarted957682007-06-17 19:56:37 -05004052 }
4053
4054 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004055 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4056 phba->sli_rev, phba->max_vpi);
James Smarted957682007-06-17 19:56:37 -05004057 rc = lpfc_sli_ring_map(phba);
dea31012005-04-17 16:05:31 -05004058
4059 if (rc)
4060 goto lpfc_sli_hba_setup_error;
4061
James Smart93996272008-08-24 21:50:30 -04004062 /* Init HBQs */
James Smarted957682007-06-17 19:56:37 -05004063 if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
4064 rc = lpfc_sli_hbq_setup(phba);
4065 if (rc)
4066 goto lpfc_sli_hba_setup_error;
4067 }
James Smart04c68492009-05-22 14:52:52 -04004068 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004069 phba->sli.sli_flag |= LPFC_PROCESS_LA;
James Smart04c68492009-05-22 14:52:52 -04004070 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004071
4072 rc = lpfc_config_port_post(phba);
4073 if (rc)
4074 goto lpfc_sli_hba_setup_error;
4075
James Smarted957682007-06-17 19:56:37 -05004076 return rc;
4077
James Smart92d7f7b2007-06-17 19:56:38 -05004078lpfc_sli_hba_setup_error:
James Smart2e0fef82007-06-17 19:56:36 -05004079 phba->link_state = LPFC_HBA_ERROR;
James Smarted957682007-06-17 19:56:37 -05004080 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04004081 "0445 Firmware initialization failed\n");
dea31012005-04-17 16:05:31 -05004082 return rc;
4083}
4084
James Smartda0436e2009-05-22 14:51:39 -04004085/**
4086 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4087 * @phba: Pointer to HBA context object.
4088 * @mboxq: mailbox pointer.
4089 * This function issue a dump mailbox command to read config region
4090 * 23 and parse the records in the region and populate driver
4091 * data structure.
4092 **/
4093static int
4094lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
4095 LPFC_MBOXQ_t *mboxq)
4096{
4097 struct lpfc_dmabuf *mp;
4098 struct lpfc_mqe *mqe;
4099 uint32_t data_length;
4100 int rc;
4101
4102 /* Program the default value of vlan_id and fc_map */
4103 phba->valid_vlan = 0;
4104 phba->fc_map[0] = LPFC_FCOE_FCF_MAP0;
4105 phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
4106 phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
4107
4108 mqe = &mboxq->u.mqe;
4109 if (lpfc_dump_fcoe_param(phba, mboxq))
4110 return -ENOMEM;
4111
4112 mp = (struct lpfc_dmabuf *) mboxq->context1;
4113 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4114
4115 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4116 "(%d):2571 Mailbox cmd x%x Status x%x "
4117 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4118 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4119 "CQ: x%x x%x x%x x%x\n",
4120 mboxq->vport ? mboxq->vport->vpi : 0,
4121 bf_get(lpfc_mqe_command, mqe),
4122 bf_get(lpfc_mqe_status, mqe),
4123 mqe->un.mb_words[0], mqe->un.mb_words[1],
4124 mqe->un.mb_words[2], mqe->un.mb_words[3],
4125 mqe->un.mb_words[4], mqe->un.mb_words[5],
4126 mqe->un.mb_words[6], mqe->un.mb_words[7],
4127 mqe->un.mb_words[8], mqe->un.mb_words[9],
4128 mqe->un.mb_words[10], mqe->un.mb_words[11],
4129 mqe->un.mb_words[12], mqe->un.mb_words[13],
4130 mqe->un.mb_words[14], mqe->un.mb_words[15],
4131 mqe->un.mb_words[16], mqe->un.mb_words[50],
4132 mboxq->mcqe.word0,
4133 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
4134 mboxq->mcqe.trailer);
4135
4136 if (rc) {
4137 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4138 kfree(mp);
4139 return -EIO;
4140 }
4141 data_length = mqe->un.mb_words[5];
James Smarta0c87cb2009-07-19 10:01:10 -04004142 if (data_length > DMP_RGN23_SIZE) {
James Smartd11e31d2009-06-10 17:23:06 -04004143 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4144 kfree(mp);
James Smartda0436e2009-05-22 14:51:39 -04004145 return -EIO;
James Smartd11e31d2009-06-10 17:23:06 -04004146 }
James Smartda0436e2009-05-22 14:51:39 -04004147
4148 lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
4149 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4150 kfree(mp);
4151 return 0;
4152}
4153
4154/**
4155 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4156 * @phba: pointer to lpfc hba data structure.
4157 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4158 * @vpd: pointer to the memory to hold resulting port vpd data.
4159 * @vpd_size: On input, the number of bytes allocated to @vpd.
4160 * On output, the number of data bytes in @vpd.
4161 *
4162 * This routine executes a READ_REV SLI4 mailbox command. In
4163 * addition, this routine gets the port vpd data.
4164 *
4165 * Return codes
4166 * 0 - sucessful
4167 * ENOMEM - could not allocated memory.
4168 **/
4169static int
4170lpfc_sli4_read_rev(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
4171 uint8_t *vpd, uint32_t *vpd_size)
4172{
4173 int rc = 0;
4174 uint32_t dma_size;
4175 struct lpfc_dmabuf *dmabuf;
4176 struct lpfc_mqe *mqe;
4177
4178 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
4179 if (!dmabuf)
4180 return -ENOMEM;
4181
4182 /*
4183 * Get a DMA buffer for the vpd data resulting from the READ_REV
4184 * mailbox command.
4185 */
4186 dma_size = *vpd_size;
4187 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
4188 dma_size,
4189 &dmabuf->phys,
4190 GFP_KERNEL);
4191 if (!dmabuf->virt) {
4192 kfree(dmabuf);
4193 return -ENOMEM;
4194 }
4195 memset(dmabuf->virt, 0, dma_size);
4196
4197 /*
4198 * The SLI4 implementation of READ_REV conflicts at word1,
4199 * bits 31:16 and SLI4 adds vpd functionality not present
4200 * in SLI3. This code corrects the conflicts.
4201 */
4202 lpfc_read_rev(phba, mboxq);
4203 mqe = &mboxq->u.mqe;
4204 mqe->un.read_rev.vpd_paddr_high = putPaddrHigh(dmabuf->phys);
4205 mqe->un.read_rev.vpd_paddr_low = putPaddrLow(dmabuf->phys);
4206 mqe->un.read_rev.word1 &= 0x0000FFFF;
4207 bf_set(lpfc_mbx_rd_rev_vpd, &mqe->un.read_rev, 1);
4208 bf_set(lpfc_mbx_rd_rev_avail_len, &mqe->un.read_rev, dma_size);
4209
4210 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4211 if (rc) {
4212 dma_free_coherent(&phba->pcidev->dev, dma_size,
4213 dmabuf->virt, dmabuf->phys);
4214 return -EIO;
4215 }
4216
James Smartda0436e2009-05-22 14:51:39 -04004217 /*
4218 * The available vpd length cannot be bigger than the
4219 * DMA buffer passed to the port. Catch the less than
4220 * case and update the caller's size.
4221 */
4222 if (mqe->un.read_rev.avail_vpd_len < *vpd_size)
4223 *vpd_size = mqe->un.read_rev.avail_vpd_len;
4224
4225 lpfc_sli_pcimem_bcopy(dmabuf->virt, vpd, *vpd_size);
4226 dma_free_coherent(&phba->pcidev->dev, dma_size,
4227 dmabuf->virt, dmabuf->phys);
4228 kfree(dmabuf);
4229 return 0;
4230}
4231
4232/**
4233 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4234 * @phba: pointer to lpfc hba data structure.
4235 *
4236 * This routine is called to explicitly arm the SLI4 device's completion and
4237 * event queues
4238 **/
4239static void
4240lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
4241{
4242 uint8_t fcp_eqidx;
4243
4244 lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
4245 lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
4246 lpfc_sli4_cq_release(phba->sli4_hba.rxq_cq, LPFC_QUEUE_REARM);
4247 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4248 lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
4249 LPFC_QUEUE_REARM);
4250 lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
4251 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
4252 lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
4253 LPFC_QUEUE_REARM);
4254}
4255
4256/**
4257 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4258 * @phba: Pointer to HBA context object.
4259 *
4260 * This function is the main SLI4 device intialization PCI function. This
4261 * function is called by the HBA intialization code, HBA reset code and
4262 * HBA error attention handler code. Caller is not required to hold any
4263 * locks.
4264 **/
4265int
4266lpfc_sli4_hba_setup(struct lpfc_hba *phba)
4267{
4268 int rc;
4269 LPFC_MBOXQ_t *mboxq;
4270 struct lpfc_mqe *mqe;
4271 uint8_t *vpd;
4272 uint32_t vpd_size;
4273 uint32_t ftr_rsp = 0;
4274 struct Scsi_Host *shost = lpfc_shost_from_vport(phba->pport);
4275 struct lpfc_vport *vport = phba->pport;
4276 struct lpfc_dmabuf *mp;
4277
4278 /* Perform a PCI function reset to start from clean */
4279 rc = lpfc_pci_function_reset(phba);
4280 if (unlikely(rc))
4281 return -ENODEV;
4282
4283 /* Check the HBA Host Status Register for readyness */
4284 rc = lpfc_sli4_post_status_check(phba);
4285 if (unlikely(rc))
4286 return -ENODEV;
4287 else {
4288 spin_lock_irq(&phba->hbalock);
4289 phba->sli.sli_flag |= LPFC_SLI_ACTIVE;
4290 spin_unlock_irq(&phba->hbalock);
4291 }
4292
4293 /*
4294 * Allocate a single mailbox container for initializing the
4295 * port.
4296 */
4297 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
4298 if (!mboxq)
4299 return -ENOMEM;
4300
4301 /*
4302 * Continue initialization with default values even if driver failed
4303 * to read FCoE param config regions
4304 */
4305 if (lpfc_sli4_read_fcoe_params(phba, mboxq))
4306 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_INIT,
James Smarte4e74272009-07-19 10:01:38 -04004307 "2570 Failed to read FCoE parameters\n");
James Smartda0436e2009-05-22 14:51:39 -04004308
4309 /* Issue READ_REV to collect vpd and FW information. */
4310 vpd_size = PAGE_SIZE;
4311 vpd = kzalloc(vpd_size, GFP_KERNEL);
4312 if (!vpd) {
4313 rc = -ENOMEM;
4314 goto out_free_mbox;
4315 }
4316
4317 rc = lpfc_sli4_read_rev(phba, mboxq, vpd, &vpd_size);
4318 if (unlikely(rc))
4319 goto out_free_vpd;
4320
4321 mqe = &mboxq->u.mqe;
James Smartf1126682009-06-10 17:22:44 -04004322 phba->sli_rev = bf_get(lpfc_mbx_rd_rev_sli_lvl, &mqe->un.read_rev);
4323 if (bf_get(lpfc_mbx_rd_rev_fcoe, &mqe->un.read_rev))
4324 phba->hba_flag |= HBA_FCOE_SUPPORT;
4325 if (phba->sli_rev != LPFC_SLI_REV4 ||
4326 !(phba->hba_flag & HBA_FCOE_SUPPORT)) {
James Smartda0436e2009-05-22 14:51:39 -04004327 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4328 "0376 READ_REV Error. SLI Level %d "
4329 "FCoE enabled %d\n",
James Smartf1126682009-06-10 17:22:44 -04004330 phba->sli_rev, phba->hba_flag & HBA_FCOE_SUPPORT);
James Smartda0436e2009-05-22 14:51:39 -04004331 rc = -EIO;
4332 goto out_free_vpd;
4333 }
James Smartda0436e2009-05-22 14:51:39 -04004334 /*
4335 * Evaluate the read rev and vpd data. Populate the driver
4336 * state with the results. If this routine fails, the failure
4337 * is not fatal as the driver will use generic values.
4338 */
4339 rc = lpfc_parse_vpd(phba, vpd, vpd_size);
4340 if (unlikely(!rc)) {
4341 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4342 "0377 Error %d parsing vpd. "
4343 "Using defaults.\n", rc);
4344 rc = 0;
4345 }
4346
James Smartf1126682009-06-10 17:22:44 -04004347 /* Save information as VPD data */
4348 phba->vpd.rev.biuRev = mqe->un.read_rev.first_hw_rev;
4349 phba->vpd.rev.smRev = mqe->un.read_rev.second_hw_rev;
4350 phba->vpd.rev.endecRev = mqe->un.read_rev.third_hw_rev;
4351 phba->vpd.rev.fcphHigh = bf_get(lpfc_mbx_rd_rev_fcph_high,
4352 &mqe->un.read_rev);
4353 phba->vpd.rev.fcphLow = bf_get(lpfc_mbx_rd_rev_fcph_low,
4354 &mqe->un.read_rev);
4355 phba->vpd.rev.feaLevelHigh = bf_get(lpfc_mbx_rd_rev_ftr_lvl_high,
4356 &mqe->un.read_rev);
4357 phba->vpd.rev.feaLevelLow = bf_get(lpfc_mbx_rd_rev_ftr_lvl_low,
4358 &mqe->un.read_rev);
4359 phba->vpd.rev.sli1FwRev = mqe->un.read_rev.fw_id_rev;
4360 memcpy(phba->vpd.rev.sli1FwName, mqe->un.read_rev.fw_name, 16);
4361 phba->vpd.rev.sli2FwRev = mqe->un.read_rev.ulp_fw_id_rev;
4362 memcpy(phba->vpd.rev.sli2FwName, mqe->un.read_rev.ulp_fw_name, 16);
4363 phba->vpd.rev.opFwRev = mqe->un.read_rev.fw_id_rev;
4364 memcpy(phba->vpd.rev.opFwName, mqe->un.read_rev.fw_name, 16);
4365 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
4366 "(%d):0380 READ_REV Status x%x "
4367 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4368 mboxq->vport ? mboxq->vport->vpi : 0,
4369 bf_get(lpfc_mqe_status, mqe),
4370 phba->vpd.rev.opFwName,
4371 phba->vpd.rev.fcphHigh, phba->vpd.rev.fcphLow,
4372 phba->vpd.rev.feaLevelHigh, phba->vpd.rev.feaLevelLow);
James Smartda0436e2009-05-22 14:51:39 -04004373
4374 /*
4375 * Discover the port's supported feature set and match it against the
4376 * hosts requests.
4377 */
4378 lpfc_request_features(phba, mboxq);
4379 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4380 if (unlikely(rc)) {
4381 rc = -EIO;
4382 goto out_free_vpd;
4383 }
4384
4385 /*
4386 * The port must support FCP initiator mode as this is the
4387 * only mode running in the host.
4388 */
4389 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi, &mqe->un.req_ftrs))) {
4390 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4391 "0378 No support for fcpi mode.\n");
4392 ftr_rsp++;
4393 }
4394
4395 /*
4396 * If the port cannot support the host's requested features
4397 * then turn off the global config parameters to disable the
4398 * feature in the driver. This is not a fatal error.
4399 */
4400 if ((phba->cfg_enable_bg) &&
4401 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4402 ftr_rsp++;
4403
4404 if (phba->max_vpi && phba->cfg_enable_npiv &&
4405 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4406 ftr_rsp++;
4407
4408 if (ftr_rsp) {
4409 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4410 "0379 Feature Mismatch Data: x%08x %08x "
4411 "x%x x%x x%x\n", mqe->un.req_ftrs.word2,
4412 mqe->un.req_ftrs.word3, phba->cfg_enable_bg,
4413 phba->cfg_enable_npiv, phba->max_vpi);
4414 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif, &mqe->un.req_ftrs)))
4415 phba->cfg_enable_bg = 0;
4416 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv, &mqe->un.req_ftrs)))
4417 phba->cfg_enable_npiv = 0;
4418 }
4419
4420 /* These SLI3 features are assumed in SLI4 */
4421 spin_lock_irq(&phba->hbalock);
4422 phba->sli3_options |= (LPFC_SLI3_NPIV_ENABLED | LPFC_SLI3_HBQ_ENABLED);
4423 spin_unlock_irq(&phba->hbalock);
4424
4425 /* Read the port's service parameters. */
4426 lpfc_read_sparam(phba, mboxq, vport->vpi);
4427 mboxq->vport = vport;
4428 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
4429 mp = (struct lpfc_dmabuf *) mboxq->context1;
4430 if (rc == MBX_SUCCESS) {
4431 memcpy(&vport->fc_sparam, mp->virt, sizeof(struct serv_parm));
4432 rc = 0;
4433 }
4434
4435 /*
4436 * This memory was allocated by the lpfc_read_sparam routine. Release
4437 * it to the mbuf pool.
4438 */
4439 lpfc_mbuf_free(phba, mp->virt, mp->phys);
4440 kfree(mp);
4441 mboxq->context1 = NULL;
4442 if (unlikely(rc)) {
4443 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4444 "0382 READ_SPARAM command failed "
4445 "status %d, mbxStatus x%x\n",
4446 rc, bf_get(lpfc_mqe_status, mqe));
4447 phba->link_state = LPFC_HBA_ERROR;
4448 rc = -EIO;
4449 goto out_free_vpd;
4450 }
4451
4452 if (phba->cfg_soft_wwnn)
4453 u64_to_wwn(phba->cfg_soft_wwnn,
4454 vport->fc_sparam.nodeName.u.wwn);
4455 if (phba->cfg_soft_wwpn)
4456 u64_to_wwn(phba->cfg_soft_wwpn,
4457 vport->fc_sparam.portName.u.wwn);
4458 memcpy(&vport->fc_nodename, &vport->fc_sparam.nodeName,
4459 sizeof(struct lpfc_name));
4460 memcpy(&vport->fc_portname, &vport->fc_sparam.portName,
4461 sizeof(struct lpfc_name));
4462
4463 /* Update the fc_host data structures with new wwn. */
4464 fc_host_node_name(shost) = wwn_to_u64(vport->fc_nodename.u.wwn);
4465 fc_host_port_name(shost) = wwn_to_u64(vport->fc_portname.u.wwn);
4466
4467 /* Register SGL pool to the device using non-embedded mailbox command */
4468 rc = lpfc_sli4_post_sgl_list(phba);
4469 if (unlikely(rc)) {
4470 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4471 "0582 Error %d during sgl post operation", rc);
4472 rc = -ENODEV;
4473 goto out_free_vpd;
4474 }
4475
4476 /* Register SCSI SGL pool to the device */
4477 rc = lpfc_sli4_repost_scsi_sgl_list(phba);
4478 if (unlikely(rc)) {
4479 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
4480 "0383 Error %d during scsi sgl post opeation",
4481 rc);
4482 /* Some Scsi buffers were moved to the abort scsi list */
4483 /* A pci function reset will repost them */
4484 rc = -ENODEV;
4485 goto out_free_vpd;
4486 }
4487
4488 /* Post the rpi header region to the device. */
4489 rc = lpfc_sli4_post_all_rpi_hdrs(phba);
4490 if (unlikely(rc)) {
4491 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4492 "0393 Error %d during rpi post operation\n",
4493 rc);
4494 rc = -ENODEV;
4495 goto out_free_vpd;
4496 }
James Smart0c287582009-06-10 17:22:56 -04004497 if (phba->cfg_enable_fip)
4498 bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 1);
4499 else
4500 bf_set(lpfc_fip_flag, &phba->sli4_hba.sli4_flags, 0);
James Smartda0436e2009-05-22 14:51:39 -04004501
4502 /* Set up all the queues to the device */
4503 rc = lpfc_sli4_queue_setup(phba);
4504 if (unlikely(rc)) {
4505 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4506 "0381 Error %d during queue setup.\n ", rc);
4507 goto out_stop_timers;
4508 }
4509
4510 /* Arm the CQs and then EQs on device */
4511 lpfc_sli4_arm_cqeq_intr(phba);
4512
4513 /* Indicate device interrupt mode */
4514 phba->sli4_hba.intr_enable = 1;
4515
4516 /* Allow asynchronous mailbox command to go through */
4517 spin_lock_irq(&phba->hbalock);
4518 phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
4519 spin_unlock_irq(&phba->hbalock);
4520
4521 /* Post receive buffers to the device */
4522 lpfc_sli4_rb_setup(phba);
4523
4524 /* Start the ELS watchdog timer */
James Smart8fa38512009-07-19 10:01:03 -04004525 mod_timer(&vport->els_tmofunc,
4526 jiffies + HZ * (phba->fc_ratov * 2));
James Smartda0436e2009-05-22 14:51:39 -04004527
4528 /* Start heart beat timer */
4529 mod_timer(&phba->hb_tmofunc,
4530 jiffies + HZ * LPFC_HB_MBOX_INTERVAL);
4531 phba->hb_outstanding = 0;
4532 phba->last_completion_time = jiffies;
4533
4534 /* Start error attention (ERATT) polling timer */
4535 mod_timer(&phba->eratt_poll, jiffies + HZ * LPFC_ERATT_POLL_INTERVAL);
4536
4537 /*
4538 * The port is ready, set the host's link state to LINK_DOWN
4539 * in preparation for link interrupts.
4540 */
4541 lpfc_init_link(phba, mboxq, phba->cfg_topology, phba->cfg_link_speed);
4542 mboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
4543 lpfc_set_loopback_flag(phba);
4544 /* Change driver state to LPFC_LINK_DOWN right before init link */
4545 spin_lock_irq(&phba->hbalock);
4546 phba->link_state = LPFC_LINK_DOWN;
4547 spin_unlock_irq(&phba->hbalock);
4548 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
4549 if (unlikely(rc != MBX_NOT_FINISHED)) {
4550 kfree(vpd);
4551 return 0;
4552 } else
4553 rc = -EIO;
4554
4555 /* Unset all the queues set up in this routine when error out */
4556 if (rc)
4557 lpfc_sli4_queue_unset(phba);
4558
4559out_stop_timers:
4560 if (rc)
4561 lpfc_stop_hba_timers(phba);
4562out_free_vpd:
4563 kfree(vpd);
4564out_free_mbox:
4565 mempool_free(mboxq, phba->mbox_mem_pool);
4566 return rc;
4567}
James Smarte59058c2008-08-24 21:49:00 -04004568
4569/**
James Smart3621a712009-04-06 18:47:14 -04004570 * lpfc_mbox_timeout - Timeout call back function for mbox timer
James Smarte59058c2008-08-24 21:49:00 -04004571 * @ptr: context object - pointer to hba structure.
dea31012005-04-17 16:05:31 -05004572 *
James Smarte59058c2008-08-24 21:49:00 -04004573 * This is the callback function for mailbox timer. The mailbox
4574 * timer is armed when a new mailbox command is issued and the timer
4575 * is deleted when the mailbox complete. The function is called by
4576 * the kernel timer code when a mailbox does not complete within
4577 * expected time. This function wakes up the worker thread to
4578 * process the mailbox timeout and returns. All the processing is
4579 * done by the worker thread function lpfc_mbox_timeout_handler.
4580 **/
dea31012005-04-17 16:05:31 -05004581void
4582lpfc_mbox_timeout(unsigned long ptr)
4583{
James Smart92d7f7b2007-06-17 19:56:38 -05004584 struct lpfc_hba *phba = (struct lpfc_hba *) ptr;
dea31012005-04-17 16:05:31 -05004585 unsigned long iflag;
James Smart2e0fef82007-06-17 19:56:36 -05004586 uint32_t tmo_posted;
dea31012005-04-17 16:05:31 -05004587
James Smart2e0fef82007-06-17 19:56:36 -05004588 spin_lock_irqsave(&phba->pport->work_port_lock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05004589 tmo_posted = phba->pport->work_port_events & WORKER_MBOX_TMO;
James Smart2e0fef82007-06-17 19:56:36 -05004590 if (!tmo_posted)
4591 phba->pport->work_port_events |= WORKER_MBOX_TMO;
4592 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflag);
4593
James Smart5e9d9b82008-06-14 22:52:53 -04004594 if (!tmo_posted)
4595 lpfc_worker_wake_up(phba);
4596 return;
dea31012005-04-17 16:05:31 -05004597}
4598
James Smarte59058c2008-08-24 21:49:00 -04004599
4600/**
James Smart3621a712009-04-06 18:47:14 -04004601 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
James Smarte59058c2008-08-24 21:49:00 -04004602 * @phba: Pointer to HBA context object.
4603 *
4604 * This function is called from worker thread when a mailbox command times out.
4605 * The caller is not required to hold any locks. This function will reset the
4606 * HBA and recover all the pending commands.
4607 **/
dea31012005-04-17 16:05:31 -05004608void
4609lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
4610{
James Smart2e0fef82007-06-17 19:56:36 -05004611 LPFC_MBOXQ_t *pmbox = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04004612 MAILBOX_t *mb = &pmbox->u.mb;
James Smart1dcb58e2007-04-25 09:51:30 -04004613 struct lpfc_sli *psli = &phba->sli;
4614 struct lpfc_sli_ring *pring;
dea31012005-04-17 16:05:31 -05004615
James Smarta257bf92009-04-06 18:48:10 -04004616 /* Check the pmbox pointer first. There is a race condition
4617 * between the mbox timeout handler getting executed in the
4618 * worklist and the mailbox actually completing. When this
4619 * race condition occurs, the mbox_active will be NULL.
4620 */
4621 spin_lock_irq(&phba->hbalock);
4622 if (pmbox == NULL) {
4623 lpfc_printf_log(phba, KERN_WARNING,
4624 LOG_MBOX | LOG_SLI,
4625 "0353 Active Mailbox cleared - mailbox timeout "
4626 "exiting\n");
4627 spin_unlock_irq(&phba->hbalock);
4628 return;
4629 }
4630
dea31012005-04-17 16:05:31 -05004631 /* Mbox cmd <mbxCommand> timeout */
James Smarted957682007-06-17 19:56:37 -05004632 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004633 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004634 mb->mbxCommand,
4635 phba->pport->port_state,
4636 phba->sli.sli_flag,
4637 phba->sli.mbox_active);
James Smarta257bf92009-04-06 18:48:10 -04004638 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05004639
James Smart1dcb58e2007-04-25 09:51:30 -04004640 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4641 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4642 * it to fail all oustanding SCSI IO.
4643 */
James Smart2e0fef82007-06-17 19:56:36 -05004644 spin_lock_irq(&phba->pport->work_port_lock);
4645 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
4646 spin_unlock_irq(&phba->pport->work_port_lock);
4647 spin_lock_irq(&phba->hbalock);
4648 phba->link_state = LPFC_LINK_UNKNOWN;
James Smartf4b4c682009-05-22 14:53:12 -04004649 psli->sli_flag &= ~LPFC_SLI_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004650 spin_unlock_irq(&phba->hbalock);
James Smart1dcb58e2007-04-25 09:51:30 -04004651
4652 pring = &psli->ring[psli->fcp_ring];
4653 lpfc_sli_abort_iocb_ring(phba, pring);
4654
4655 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04004656 "0345 Resetting board due to mailbox timeout\n");
James Smart3772a992009-05-22 14:50:54 -04004657
4658 /* Reset the HBA device */
4659 lpfc_reset_hba(phba);
dea31012005-04-17 16:05:31 -05004660}
4661
James Smarte59058c2008-08-24 21:49:00 -04004662/**
James Smart3772a992009-05-22 14:50:54 -04004663 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
James Smarte59058c2008-08-24 21:49:00 -04004664 * @phba: Pointer to HBA context object.
4665 * @pmbox: Pointer to mailbox object.
4666 * @flag: Flag indicating how the mailbox need to be processed.
4667 *
4668 * This function is called by discovery code and HBA management code
James Smart3772a992009-05-22 14:50:54 -04004669 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4670 * function gets the hbalock to protect the data structures.
James Smarte59058c2008-08-24 21:49:00 -04004671 * The mailbox command can be submitted in polling mode, in which case
4672 * this function will wait in a polling loop for the completion of the
4673 * mailbox.
4674 * If the mailbox is submitted in no_wait mode (not polling) the
4675 * function will submit the command and returns immediately without waiting
4676 * for the mailbox completion. The no_wait is supported only when HBA
4677 * is in SLI2/SLI3 mode - interrupts are enabled.
4678 * The SLI interface allows only one mailbox pending at a time. If the
4679 * mailbox is issued in polling mode and there is already a mailbox
4680 * pending, then the function will return an error. If the mailbox is issued
4681 * in NO_WAIT mode and there is a mailbox pending already, the function
4682 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4683 * The sli layer owns the mailbox object until the completion of mailbox
4684 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4685 * return codes the caller owns the mailbox command after the return of
4686 * the function.
4687 **/
James Smart3772a992009-05-22 14:50:54 -04004688static int
4689lpfc_sli_issue_mbox_s3(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox,
4690 uint32_t flag)
dea31012005-04-17 16:05:31 -05004691{
dea31012005-04-17 16:05:31 -05004692 MAILBOX_t *mb;
James Smart2e0fef82007-06-17 19:56:36 -05004693 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05004694 uint32_t status, evtctr;
4695 uint32_t ha_copy;
4696 int i;
James Smart09372822008-01-11 01:52:54 -05004697 unsigned long timeout;
dea31012005-04-17 16:05:31 -05004698 unsigned long drvr_flag = 0;
James Smart34b02dc2008-08-24 21:49:55 -04004699 uint32_t word0, ldata;
dea31012005-04-17 16:05:31 -05004700 void __iomem *to_slim;
James Smart58da1ff2008-04-07 10:15:56 -04004701 int processing_queue = 0;
4702
4703 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4704 if (!pmbox) {
James Smart8568a4d2009-07-19 10:01:16 -04004705 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart58da1ff2008-04-07 10:15:56 -04004706 /* processing mbox queue from intr_handler */
James Smart3772a992009-05-22 14:50:54 -04004707 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
4708 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4709 return MBX_SUCCESS;
4710 }
James Smart58da1ff2008-04-07 10:15:56 -04004711 processing_queue = 1;
James Smart58da1ff2008-04-07 10:15:56 -04004712 pmbox = lpfc_mbox_get(phba);
4713 if (!pmbox) {
4714 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4715 return MBX_SUCCESS;
4716 }
4717 }
dea31012005-04-17 16:05:31 -05004718
James Smarted957682007-06-17 19:56:37 -05004719 if (pmbox->mbox_cmpl && pmbox->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
James Smart92d7f7b2007-06-17 19:56:38 -05004720 pmbox->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
James Smarted957682007-06-17 19:56:37 -05004721 if(!pmbox->vport) {
James Smart58da1ff2008-04-07 10:15:56 -04004722 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smarted957682007-06-17 19:56:37 -05004723 lpfc_printf_log(phba, KERN_ERR,
James Smart92d7f7b2007-06-17 19:56:38 -05004724 LOG_MBOX | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04004725 "1806 Mbox x%x failed. No vport\n",
James Smart3772a992009-05-22 14:50:54 -04004726 pmbox->u.mb.mbxCommand);
James Smarted957682007-06-17 19:56:37 -05004727 dump_stack();
James Smart58da1ff2008-04-07 10:15:56 -04004728 goto out_not_finished;
James Smarted957682007-06-17 19:56:37 -05004729 }
4730 }
4731
Linas Vepstas8d63f372007-02-14 14:28:36 -06004732 /* If the PCI channel is in offline state, do not post mbox. */
James Smart58da1ff2008-04-07 10:15:56 -04004733 if (unlikely(pci_channel_offline(phba->pcidev))) {
4734 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4735 goto out_not_finished;
4736 }
Linas Vepstas8d63f372007-02-14 14:28:36 -06004737
James Smarta257bf92009-04-06 18:48:10 -04004738 /* If HBA has a deferred error attention, fail the iocb. */
4739 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
4740 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
4741 goto out_not_finished;
4742 }
4743
dea31012005-04-17 16:05:31 -05004744 psli = &phba->sli;
James Smart92d7f7b2007-06-17 19:56:38 -05004745
James Smart3772a992009-05-22 14:50:54 -04004746 mb = &pmbox->u.mb;
dea31012005-04-17 16:05:31 -05004747 status = MBX_SUCCESS;
4748
James Smart2e0fef82007-06-17 19:56:36 -05004749 if (phba->link_state == LPFC_HBA_ERROR) {
4750 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
Jamie Wellnitz41415862006-02-28 19:25:27 -05004751
4752 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004753 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4754 "(%d):0311 Mailbox command x%x cannot "
4755 "issue Data: x%x x%x\n",
4756 pmbox->vport ? pmbox->vport->vpi : 0,
4757 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004758 goto out_not_finished;
Jamie Wellnitz41415862006-02-28 19:25:27 -05004759 }
4760
James Smart92908312006-03-07 15:04:13 -05004761 if (mb->mbxCommand != MBX_KILL_BOARD && flag & MBX_NOWAIT &&
4762 !(readl(phba->HCregaddr) & HC_MBINT_ENA)) {
James Smart2e0fef82007-06-17 19:56:36 -05004763 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
James Smart3772a992009-05-22 14:50:54 -04004764 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4765 "(%d):2528 Mailbox command x%x cannot "
4766 "issue Data: x%x x%x\n",
4767 pmbox->vport ? pmbox->vport->vpi : 0,
4768 pmbox->u.mb.mbxCommand, psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004769 goto out_not_finished;
James Smart92908312006-03-07 15:04:13 -05004770 }
4771
dea31012005-04-17 16:05:31 -05004772 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
4773 /* Polling for a mbox command when another one is already active
4774 * is not allowed in SLI. Also, the driver must have established
4775 * SLI2 mode to queue and process multiple mbox commands.
4776 */
4777
4778 if (flag & MBX_POLL) {
James Smart2e0fef82007-06-17 19:56:36 -05004779 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004780
4781 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004782 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4783 "(%d):2529 Mailbox command x%x "
4784 "cannot issue Data: x%x x%x\n",
4785 pmbox->vport ? pmbox->vport->vpi : 0,
4786 pmbox->u.mb.mbxCommand,
4787 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004788 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004789 }
4790
James Smart3772a992009-05-22 14:50:54 -04004791 if (!(psli->sli_flag & LPFC_SLI_ACTIVE)) {
James Smart2e0fef82007-06-17 19:56:36 -05004792 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004793 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004794 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4795 "(%d):2530 Mailbox command x%x "
4796 "cannot issue Data: x%x x%x\n",
4797 pmbox->vport ? pmbox->vport->vpi : 0,
4798 pmbox->u.mb.mbxCommand,
4799 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004800 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004801 }
4802
dea31012005-04-17 16:05:31 -05004803 /* Another mailbox command is still being processed, queue this
4804 * command to be processed later.
4805 */
4806 lpfc_mbox_put(phba, pmbox);
4807
4808 /* Mbox cmd issue - BUSY */
James Smarted957682007-06-17 19:56:37 -05004809 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004810 "(%d):0308 Mbox cmd issue - BUSY Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05004811 "x%x x%x x%x x%x\n",
James Smart92d7f7b2007-06-17 19:56:38 -05004812 pmbox->vport ? pmbox->vport->vpi : 0xffffff,
4813 mb->mbxCommand, phba->pport->port_state,
4814 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004815
4816 psli->slistat.mbox_busy++;
James Smart2e0fef82007-06-17 19:56:36 -05004817 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004818
James Smart858c9f62007-06-17 19:56:39 -05004819 if (pmbox->vport) {
4820 lpfc_debugfs_disc_trc(pmbox->vport,
4821 LPFC_DISC_TRC_MBOX_VPORT,
4822 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4823 (uint32_t)mb->mbxCommand,
4824 mb->un.varWords[0], mb->un.varWords[1]);
4825 }
4826 else {
4827 lpfc_debugfs_disc_trc(phba->pport,
4828 LPFC_DISC_TRC_MBOX,
4829 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4830 (uint32_t)mb->mbxCommand,
4831 mb->un.varWords[0], mb->un.varWords[1]);
4832 }
4833
James Smart2e0fef82007-06-17 19:56:36 -05004834 return MBX_BUSY;
dea31012005-04-17 16:05:31 -05004835 }
4836
dea31012005-04-17 16:05:31 -05004837 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
4838
4839 /* If we are not polling, we MUST be in SLI2 mode */
4840 if (flag != MBX_POLL) {
James Smart3772a992009-05-22 14:50:54 -04004841 if (!(psli->sli_flag & LPFC_SLI_ACTIVE) &&
Jamie Wellnitz41415862006-02-28 19:25:27 -05004842 (mb->mbxCommand != MBX_KILL_BOARD)) {
dea31012005-04-17 16:05:31 -05004843 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004844 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
dea31012005-04-17 16:05:31 -05004845 /* Mbox command <mbxCommand> cannot issue */
James Smart3772a992009-05-22 14:50:54 -04004846 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
4847 "(%d):2531 Mailbox command x%x "
4848 "cannot issue Data: x%x x%x\n",
4849 pmbox->vport ? pmbox->vport->vpi : 0,
4850 pmbox->u.mb.mbxCommand,
4851 psli->sli_flag, flag);
James Smart58da1ff2008-04-07 10:15:56 -04004852 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004853 }
4854 /* timeout active mbox command */
James Smarta309a6b2006-08-01 07:33:43 -04004855 mod_timer(&psli->mbox_tmo, (jiffies +
4856 (HZ * lpfc_mbox_tmo_val(phba, mb->mbxCommand))));
dea31012005-04-17 16:05:31 -05004857 }
4858
4859 /* Mailbox cmd <cmd> issue */
James Smarted957682007-06-17 19:56:37 -05004860 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04004861 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
James Smart92d7f7b2007-06-17 19:56:38 -05004862 "x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04004863 pmbox->vport ? pmbox->vport->vpi : 0,
James Smart92d7f7b2007-06-17 19:56:38 -05004864 mb->mbxCommand, phba->pport->port_state,
4865 psli->sli_flag, flag);
dea31012005-04-17 16:05:31 -05004866
James Smart858c9f62007-06-17 19:56:39 -05004867 if (mb->mbxCommand != MBX_HEARTBEAT) {
4868 if (pmbox->vport) {
4869 lpfc_debugfs_disc_trc(pmbox->vport,
4870 LPFC_DISC_TRC_MBOX_VPORT,
4871 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4872 (uint32_t)mb->mbxCommand,
4873 mb->un.varWords[0], mb->un.varWords[1]);
4874 }
4875 else {
4876 lpfc_debugfs_disc_trc(phba->pport,
4877 LPFC_DISC_TRC_MBOX,
4878 "MBOX Send: cmd:x%x mb:x%x x%x",
4879 (uint32_t)mb->mbxCommand,
4880 mb->un.varWords[0], mb->un.varWords[1]);
4881 }
4882 }
4883
dea31012005-04-17 16:05:31 -05004884 psli->slistat.mbox_cmd++;
4885 evtctr = psli->slistat.mbox_event;
4886
4887 /* next set own bit for the adapter and copy over command word */
4888 mb->mbxOwner = OWN_CHIP;
4889
James Smart3772a992009-05-22 14:50:54 -04004890 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004891 /* First copy command data to host SLIM area */
James Smart34b02dc2008-08-24 21:49:55 -04004892 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004893 } else {
James Smart92908312006-03-07 15:04:13 -05004894 if (mb->mbxCommand == MBX_CONFIG_PORT) {
dea31012005-04-17 16:05:31 -05004895 /* copy command data into host mbox for cmpl */
James Smart34b02dc2008-08-24 21:49:55 -04004896 lpfc_sli_pcimem_bcopy(mb, phba->mbox, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05004897 }
4898
4899 /* First copy mbox command data to HBA SLIM, skip past first
4900 word */
4901 to_slim = phba->MBslimaddr + sizeof (uint32_t);
4902 lpfc_memcpy_to_slim(to_slim, &mb->un.varWords[0],
4903 MAILBOX_CMD_SIZE - sizeof (uint32_t));
4904
4905 /* Next copy over first word, with mbxOwner set */
James Smart34b02dc2008-08-24 21:49:55 -04004906 ldata = *((uint32_t *)mb);
dea31012005-04-17 16:05:31 -05004907 to_slim = phba->MBslimaddr;
4908 writel(ldata, to_slim);
4909 readl(to_slim); /* flush */
4910
4911 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4912 /* switch over to host mailbox */
James Smart3772a992009-05-22 14:50:54 -04004913 psli->sli_flag |= LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05004914 }
4915 }
4916
4917 wmb();
dea31012005-04-17 16:05:31 -05004918
4919 switch (flag) {
4920 case MBX_NOWAIT:
James Smart09372822008-01-11 01:52:54 -05004921 /* Set up reference to mailbox command */
dea31012005-04-17 16:05:31 -05004922 psli->mbox_active = pmbox;
James Smart09372822008-01-11 01:52:54 -05004923 /* Interrupt board to do it */
4924 writel(CA_MBATT, phba->CAregaddr);
4925 readl(phba->CAregaddr); /* flush */
4926 /* Don't wait for it to finish, just return */
dea31012005-04-17 16:05:31 -05004927 break;
4928
4929 case MBX_POLL:
James Smart09372822008-01-11 01:52:54 -05004930 /* Set up null reference to mailbox command */
dea31012005-04-17 16:05:31 -05004931 psli->mbox_active = NULL;
James Smart09372822008-01-11 01:52:54 -05004932 /* Interrupt board to do it */
4933 writel(CA_MBATT, phba->CAregaddr);
4934 readl(phba->CAregaddr); /* flush */
4935
James Smart3772a992009-05-22 14:50:54 -04004936 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004937 /* First read mbox status word */
James Smart34b02dc2008-08-24 21:49:55 -04004938 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05004939 word0 = le32_to_cpu(word0);
4940 } else {
4941 /* First read mbox status word */
4942 word0 = readl(phba->MBslimaddr);
4943 }
4944
4945 /* Read the HBA Host Attention Register */
4946 ha_copy = readl(phba->HAregaddr);
James Smart09372822008-01-11 01:52:54 -05004947 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba,
4948 mb->mbxCommand) *
4949 1000) + jiffies;
4950 i = 0;
dea31012005-04-17 16:05:31 -05004951 /* Wait for command to complete */
Jamie Wellnitz41415862006-02-28 19:25:27 -05004952 while (((word0 & OWN_CHIP) == OWN_CHIP) ||
4953 (!(ha_copy & HA_MBATT) &&
James Smart2e0fef82007-06-17 19:56:36 -05004954 (phba->link_state > LPFC_WARM_START))) {
James Smart09372822008-01-11 01:52:54 -05004955 if (time_after(jiffies, timeout)) {
dea31012005-04-17 16:05:31 -05004956 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
James Smart2e0fef82007-06-17 19:56:36 -05004957 spin_unlock_irqrestore(&phba->hbalock,
dea31012005-04-17 16:05:31 -05004958 drvr_flag);
James Smart58da1ff2008-04-07 10:15:56 -04004959 goto out_not_finished;
dea31012005-04-17 16:05:31 -05004960 }
4961
4962 /* Check if we took a mbox interrupt while we were
4963 polling */
4964 if (((word0 & OWN_CHIP) != OWN_CHIP)
4965 && (evtctr != psli->slistat.mbox_event))
4966 break;
4967
James Smart09372822008-01-11 01:52:54 -05004968 if (i++ > 10) {
4969 spin_unlock_irqrestore(&phba->hbalock,
4970 drvr_flag);
4971 msleep(1);
4972 spin_lock_irqsave(&phba->hbalock, drvr_flag);
4973 }
dea31012005-04-17 16:05:31 -05004974
James Smart3772a992009-05-22 14:50:54 -04004975 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05004976 /* First copy command data */
James Smart34b02dc2008-08-24 21:49:55 -04004977 word0 = *((uint32_t *)phba->mbox);
dea31012005-04-17 16:05:31 -05004978 word0 = le32_to_cpu(word0);
4979 if (mb->mbxCommand == MBX_CONFIG_PORT) {
4980 MAILBOX_t *slimmb;
James Smart34b02dc2008-08-24 21:49:55 -04004981 uint32_t slimword0;
dea31012005-04-17 16:05:31 -05004982 /* Check real SLIM for any errors */
4983 slimword0 = readl(phba->MBslimaddr);
4984 slimmb = (MAILBOX_t *) & slimword0;
4985 if (((slimword0 & OWN_CHIP) != OWN_CHIP)
4986 && slimmb->mbxStatus) {
4987 psli->sli_flag &=
James Smart3772a992009-05-22 14:50:54 -04004988 ~LPFC_SLI_ACTIVE;
dea31012005-04-17 16:05:31 -05004989 word0 = slimword0;
4990 }
4991 }
4992 } else {
4993 /* First copy command data */
4994 word0 = readl(phba->MBslimaddr);
4995 }
4996 /* Read the HBA Host Attention Register */
4997 ha_copy = readl(phba->HAregaddr);
4998 }
4999
James Smart3772a992009-05-22 14:50:54 -04005000 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
dea31012005-04-17 16:05:31 -05005001 /* copy results back to user */
James Smart34b02dc2008-08-24 21:49:55 -04005002 lpfc_sli_pcimem_bcopy(phba->mbox, mb, MAILBOX_CMD_SIZE);
dea31012005-04-17 16:05:31 -05005003 } else {
5004 /* First copy command data */
5005 lpfc_memcpy_from_slim(mb, phba->MBslimaddr,
5006 MAILBOX_CMD_SIZE);
5007 if ((mb->mbxCommand == MBX_DUMP_MEMORY) &&
5008 pmbox->context2) {
James Smart92d7f7b2007-06-17 19:56:38 -05005009 lpfc_memcpy_from_slim((void *)pmbox->context2,
dea31012005-04-17 16:05:31 -05005010 phba->MBslimaddr + DMP_RSP_OFFSET,
5011 mb->un.varDmp.word_cnt);
5012 }
5013 }
5014
5015 writel(HA_MBATT, phba->HAregaddr);
5016 readl(phba->HAregaddr); /* flush */
5017
5018 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5019 status = mb->mbxStatus;
5020 }
5021
James Smart2e0fef82007-06-17 19:56:36 -05005022 spin_unlock_irqrestore(&phba->hbalock, drvr_flag);
5023 return status;
James Smart58da1ff2008-04-07 10:15:56 -04005024
5025out_not_finished:
5026 if (processing_queue) {
James Smartda0436e2009-05-22 14:51:39 -04005027 pmbox->u.mb.mbxStatus = MBX_NOT_FINISHED;
James Smart58da1ff2008-04-07 10:15:56 -04005028 lpfc_mbox_cmpl_put(phba, pmbox);
5029 }
5030 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05005031}
5032
James Smarte59058c2008-08-24 21:49:00 -04005033/**
James Smartf1126682009-06-10 17:22:44 -04005034 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5035 * @phba: Pointer to HBA context object.
5036 *
5037 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5038 * the driver internal pending mailbox queue. It will then try to wait out the
5039 * possible outstanding mailbox command before return.
5040 *
5041 * Returns:
5042 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5043 * the outstanding mailbox command timed out.
5044 **/
5045static int
5046lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
5047{
5048 struct lpfc_sli *psli = &phba->sli;
5049 uint8_t actcmd = MBX_HEARTBEAT;
5050 int rc = 0;
5051 unsigned long timeout;
5052
5053 /* Mark the asynchronous mailbox command posting as blocked */
5054 spin_lock_irq(&phba->hbalock);
5055 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
5056 if (phba->sli.mbox_active)
5057 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
5058 spin_unlock_irq(&phba->hbalock);
5059 /* Determine how long we might wait for the active mailbox
5060 * command to be gracefully completed by firmware.
5061 */
5062 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) * 1000) +
5063 jiffies;
5064 /* Wait for the outstnading mailbox command to complete */
5065 while (phba->sli.mbox_active) {
5066 /* Check active mailbox complete status every 2ms */
5067 msleep(2);
5068 if (time_after(jiffies, timeout)) {
5069 /* Timeout, marked the outstanding cmd not complete */
5070 rc = 1;
5071 break;
5072 }
5073 }
5074
5075 /* Can not cleanly block async mailbox command, fails it */
5076 if (rc) {
5077 spin_lock_irq(&phba->hbalock);
5078 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5079 spin_unlock_irq(&phba->hbalock);
5080 }
5081 return rc;
5082}
5083
5084/**
5085 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5086 * @phba: Pointer to HBA context object.
5087 *
5088 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5089 * commands from the driver internal pending mailbox queue. It makes sure
5090 * that there is no outstanding mailbox command before resuming posting
5091 * asynchronous mailbox commands. If, for any reason, there is outstanding
5092 * mailbox command, it will try to wait it out before resuming asynchronous
5093 * mailbox command posting.
5094 **/
5095static void
5096lpfc_sli4_async_mbox_unblock(struct lpfc_hba *phba)
5097{
5098 struct lpfc_sli *psli = &phba->sli;
5099
5100 spin_lock_irq(&phba->hbalock);
5101 if (!(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5102 /* Asynchronous mailbox posting is not blocked, do nothing */
5103 spin_unlock_irq(&phba->hbalock);
5104 return;
5105 }
5106
5107 /* Outstanding synchronous mailbox command is guaranteed to be done,
5108 * successful or timeout, after timing-out the outstanding mailbox
5109 * command shall always be removed, so just unblock posting async
5110 * mailbox command and resume
5111 */
5112 psli->sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
5113 spin_unlock_irq(&phba->hbalock);
5114
5115 /* wake up worker thread to post asynchronlous mailbox command */
5116 lpfc_worker_wake_up(phba);
5117}
5118
5119/**
James Smartda0436e2009-05-22 14:51:39 -04005120 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5121 * @phba: Pointer to HBA context object.
5122 * @mboxq: Pointer to mailbox object.
5123 *
5124 * The function posts a mailbox to the port. The mailbox is expected
5125 * to be comletely filled in and ready for the port to operate on it.
5126 * This routine executes a synchronous completion operation on the
5127 * mailbox by polling for its completion.
5128 *
5129 * The caller must not be holding any locks when calling this routine.
5130 *
5131 * Returns:
5132 * MBX_SUCCESS - mailbox posted successfully
5133 * Any of the MBX error values.
5134 **/
5135static int
5136lpfc_sli4_post_sync_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
5137{
5138 int rc = MBX_SUCCESS;
5139 unsigned long iflag;
5140 uint32_t db_ready;
5141 uint32_t mcqe_status;
5142 uint32_t mbx_cmnd;
5143 unsigned long timeout;
5144 struct lpfc_sli *psli = &phba->sli;
5145 struct lpfc_mqe *mb = &mboxq->u.mqe;
5146 struct lpfc_bmbx_create *mbox_rgn;
5147 struct dma_address *dma_address;
5148 struct lpfc_register bmbx_reg;
5149
5150 /*
5151 * Only one mailbox can be active to the bootstrap mailbox region
5152 * at a time and there is no queueing provided.
5153 */
5154 spin_lock_irqsave(&phba->hbalock, iflag);
5155 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5156 spin_unlock_irqrestore(&phba->hbalock, iflag);
5157 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5158 "(%d):2532 Mailbox command x%x (x%x) "
5159 "cannot issue Data: x%x x%x\n",
5160 mboxq->vport ? mboxq->vport->vpi : 0,
5161 mboxq->u.mb.mbxCommand,
5162 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5163 psli->sli_flag, MBX_POLL);
5164 return MBXERR_ERROR;
5165 }
5166 /* The server grabs the token and owns it until release */
5167 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5168 phba->sli.mbox_active = mboxq;
5169 spin_unlock_irqrestore(&phba->hbalock, iflag);
5170
5171 /*
5172 * Initialize the bootstrap memory region to avoid stale data areas
5173 * in the mailbox post. Then copy the caller's mailbox contents to
5174 * the bmbx mailbox region.
5175 */
5176 mbx_cmnd = bf_get(lpfc_mqe_command, mb);
5177 memset(phba->sli4_hba.bmbx.avirt, 0, sizeof(struct lpfc_bmbx_create));
5178 lpfc_sli_pcimem_bcopy(mb, phba->sli4_hba.bmbx.avirt,
5179 sizeof(struct lpfc_mqe));
5180
5181 /* Post the high mailbox dma address to the port and wait for ready. */
5182 dma_address = &phba->sli4_hba.bmbx.dma_address;
5183 writel(dma_address->addr_hi, phba->sli4_hba.BMBXregaddr);
5184
5185 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5186 * 1000) + jiffies;
5187 do {
5188 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5189 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5190 if (!db_ready)
5191 msleep(2);
5192
5193 if (time_after(jiffies, timeout)) {
5194 rc = MBXERR_ERROR;
5195 goto exit;
5196 }
5197 } while (!db_ready);
5198
5199 /* Post the low mailbox dma address to the port. */
5200 writel(dma_address->addr_lo, phba->sli4_hba.BMBXregaddr);
5201 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, mbx_cmnd)
5202 * 1000) + jiffies;
5203 do {
5204 bmbx_reg.word0 = readl(phba->sli4_hba.BMBXregaddr);
5205 db_ready = bf_get(lpfc_bmbx_rdy, &bmbx_reg);
5206 if (!db_ready)
5207 msleep(2);
5208
5209 if (time_after(jiffies, timeout)) {
5210 rc = MBXERR_ERROR;
5211 goto exit;
5212 }
5213 } while (!db_ready);
5214
5215 /*
5216 * Read the CQ to ensure the mailbox has completed.
5217 * If so, update the mailbox status so that the upper layers
5218 * can complete the request normally.
5219 */
5220 lpfc_sli_pcimem_bcopy(phba->sli4_hba.bmbx.avirt, mb,
5221 sizeof(struct lpfc_mqe));
5222 mbox_rgn = (struct lpfc_bmbx_create *) phba->sli4_hba.bmbx.avirt;
5223 lpfc_sli_pcimem_bcopy(&mbox_rgn->mcqe, &mboxq->mcqe,
5224 sizeof(struct lpfc_mcqe));
5225 mcqe_status = bf_get(lpfc_mcqe_status, &mbox_rgn->mcqe);
5226
5227 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5228 if (mcqe_status != MB_CQE_STATUS_SUCCESS) {
5229 bf_set(lpfc_mqe_status, mb, LPFC_MBX_ERROR_RANGE | mcqe_status);
5230 rc = MBXERR_ERROR;
5231 }
5232
5233 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5234 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5235 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5236 " x%x x%x CQ: x%x x%x x%x x%x\n",
5237 mboxq->vport ? mboxq->vport->vpi : 0,
5238 mbx_cmnd, lpfc_sli4_mbox_opcode_get(phba, mboxq),
5239 bf_get(lpfc_mqe_status, mb),
5240 mb->un.mb_words[0], mb->un.mb_words[1],
5241 mb->un.mb_words[2], mb->un.mb_words[3],
5242 mb->un.mb_words[4], mb->un.mb_words[5],
5243 mb->un.mb_words[6], mb->un.mb_words[7],
5244 mb->un.mb_words[8], mb->un.mb_words[9],
5245 mb->un.mb_words[10], mb->un.mb_words[11],
5246 mb->un.mb_words[12], mboxq->mcqe.word0,
5247 mboxq->mcqe.mcqe_tag0, mboxq->mcqe.mcqe_tag1,
5248 mboxq->mcqe.trailer);
5249exit:
5250 /* We are holding the token, no needed for lock when release */
5251 spin_lock_irqsave(&phba->hbalock, iflag);
5252 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5253 phba->sli.mbox_active = NULL;
5254 spin_unlock_irqrestore(&phba->hbalock, iflag);
5255 return rc;
5256}
5257
5258/**
5259 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5260 * @phba: Pointer to HBA context object.
5261 * @pmbox: Pointer to mailbox object.
5262 * @flag: Flag indicating how the mailbox need to be processed.
5263 *
5264 * This function is called by discovery code and HBA management code to submit
5265 * a mailbox command to firmware with SLI-4 interface spec.
5266 *
5267 * Return codes the caller owns the mailbox command after the return of the
5268 * function.
5269 **/
5270static int
5271lpfc_sli_issue_mbox_s4(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq,
5272 uint32_t flag)
5273{
5274 struct lpfc_sli *psli = &phba->sli;
5275 unsigned long iflags;
5276 int rc;
5277
James Smart8fa38512009-07-19 10:01:03 -04005278 rc = lpfc_mbox_dev_check(phba);
5279 if (unlikely(rc)) {
5280 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5281 "(%d):2544 Mailbox command x%x (x%x) "
5282 "cannot issue Data: x%x x%x\n",
5283 mboxq->vport ? mboxq->vport->vpi : 0,
5284 mboxq->u.mb.mbxCommand,
5285 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5286 psli->sli_flag, flag);
5287 goto out_not_finished;
5288 }
5289
James Smartda0436e2009-05-22 14:51:39 -04005290 /* Detect polling mode and jump to a handler */
5291 if (!phba->sli4_hba.intr_enable) {
5292 if (flag == MBX_POLL)
5293 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5294 else
5295 rc = -EIO;
5296 if (rc != MBX_SUCCESS)
5297 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5298 "(%d):2541 Mailbox command x%x "
5299 "(x%x) cannot issue Data: x%x x%x\n",
5300 mboxq->vport ? mboxq->vport->vpi : 0,
5301 mboxq->u.mb.mbxCommand,
5302 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5303 psli->sli_flag, flag);
5304 return rc;
5305 } else if (flag == MBX_POLL) {
James Smartf1126682009-06-10 17:22:44 -04005306 lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_SLI,
5307 "(%d):2542 Try to issue mailbox command "
5308 "x%x (x%x) synchronously ahead of async"
5309 "mailbox command queue: x%x x%x\n",
James Smartda0436e2009-05-22 14:51:39 -04005310 mboxq->vport ? mboxq->vport->vpi : 0,
5311 mboxq->u.mb.mbxCommand,
5312 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5313 psli->sli_flag, flag);
James Smartf1126682009-06-10 17:22:44 -04005314 /* Try to block the asynchronous mailbox posting */
5315 rc = lpfc_sli4_async_mbox_block(phba);
5316 if (!rc) {
5317 /* Successfully blocked, now issue sync mbox cmd */
5318 rc = lpfc_sli4_post_sync_mbox(phba, mboxq);
5319 if (rc != MBX_SUCCESS)
5320 lpfc_printf_log(phba, KERN_ERR,
5321 LOG_MBOX | LOG_SLI,
5322 "(%d):2597 Mailbox command "
5323 "x%x (x%x) cannot issue "
5324 "Data: x%x x%x\n",
5325 mboxq->vport ?
5326 mboxq->vport->vpi : 0,
5327 mboxq->u.mb.mbxCommand,
5328 lpfc_sli4_mbox_opcode_get(phba,
5329 mboxq),
5330 psli->sli_flag, flag);
5331 /* Unblock the async mailbox posting afterward */
5332 lpfc_sli4_async_mbox_unblock(phba);
5333 }
5334 return rc;
James Smartda0436e2009-05-22 14:51:39 -04005335 }
5336
5337 /* Now, interrupt mode asynchrous mailbox command */
5338 rc = lpfc_mbox_cmd_check(phba, mboxq);
5339 if (rc) {
5340 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5341 "(%d):2543 Mailbox command x%x (x%x) "
5342 "cannot issue Data: x%x x%x\n",
5343 mboxq->vport ? mboxq->vport->vpi : 0,
5344 mboxq->u.mb.mbxCommand,
5345 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5346 psli->sli_flag, flag);
5347 goto out_not_finished;
5348 }
James Smartda0436e2009-05-22 14:51:39 -04005349
5350 /* Put the mailbox command to the driver internal FIFO */
5351 psli->slistat.mbox_busy++;
5352 spin_lock_irqsave(&phba->hbalock, iflags);
5353 lpfc_mbox_put(phba, mboxq);
5354 spin_unlock_irqrestore(&phba->hbalock, iflags);
5355 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5356 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5357 "x%x (x%x) x%x x%x x%x\n",
5358 mboxq->vport ? mboxq->vport->vpi : 0xffffff,
5359 bf_get(lpfc_mqe_command, &mboxq->u.mqe),
5360 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5361 phba->pport->port_state,
5362 psli->sli_flag, MBX_NOWAIT);
5363 /* Wake up worker thread to transport mailbox command from head */
5364 lpfc_worker_wake_up(phba);
5365
5366 return MBX_BUSY;
5367
5368out_not_finished:
5369 return MBX_NOT_FINISHED;
5370}
5371
5372/**
5373 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5374 * @phba: Pointer to HBA context object.
5375 *
5376 * This function is called by worker thread to send a mailbox command to
5377 * SLI4 HBA firmware.
5378 *
5379 **/
5380int
5381lpfc_sli4_post_async_mbox(struct lpfc_hba *phba)
5382{
5383 struct lpfc_sli *psli = &phba->sli;
5384 LPFC_MBOXQ_t *mboxq;
5385 int rc = MBX_SUCCESS;
5386 unsigned long iflags;
5387 struct lpfc_mqe *mqe;
5388 uint32_t mbx_cmnd;
5389
5390 /* Check interrupt mode before post async mailbox command */
5391 if (unlikely(!phba->sli4_hba.intr_enable))
5392 return MBX_NOT_FINISHED;
5393
5394 /* Check for mailbox command service token */
5395 spin_lock_irqsave(&phba->hbalock, iflags);
5396 if (unlikely(psli->sli_flag & LPFC_SLI_ASYNC_MBX_BLK)) {
5397 spin_unlock_irqrestore(&phba->hbalock, iflags);
5398 return MBX_NOT_FINISHED;
5399 }
5400 if (psli->sli_flag & LPFC_SLI_MBOX_ACTIVE) {
5401 spin_unlock_irqrestore(&phba->hbalock, iflags);
5402 return MBX_NOT_FINISHED;
5403 }
5404 if (unlikely(phba->sli.mbox_active)) {
5405 spin_unlock_irqrestore(&phba->hbalock, iflags);
5406 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5407 "0384 There is pending active mailbox cmd\n");
5408 return MBX_NOT_FINISHED;
5409 }
5410 /* Take the mailbox command service token */
5411 psli->sli_flag |= LPFC_SLI_MBOX_ACTIVE;
5412
5413 /* Get the next mailbox command from head of queue */
5414 mboxq = lpfc_mbox_get(phba);
5415
5416 /* If no more mailbox command waiting for post, we're done */
5417 if (!mboxq) {
5418 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5419 spin_unlock_irqrestore(&phba->hbalock, iflags);
5420 return MBX_SUCCESS;
5421 }
5422 phba->sli.mbox_active = mboxq;
5423 spin_unlock_irqrestore(&phba->hbalock, iflags);
5424
5425 /* Check device readiness for posting mailbox command */
5426 rc = lpfc_mbox_dev_check(phba);
5427 if (unlikely(rc))
5428 /* Driver clean routine will clean up pending mailbox */
5429 goto out_not_finished;
5430
5431 /* Prepare the mbox command to be posted */
5432 mqe = &mboxq->u.mqe;
5433 mbx_cmnd = bf_get(lpfc_mqe_command, mqe);
5434
5435 /* Start timer for the mbox_tmo and log some mailbox post messages */
5436 mod_timer(&psli->mbox_tmo, (jiffies +
5437 (HZ * lpfc_mbox_tmo_val(phba, mbx_cmnd))));
5438
5439 lpfc_printf_log(phba, KERN_INFO, LOG_MBOX | LOG_SLI,
5440 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5441 "x%x x%x\n",
5442 mboxq->vport ? mboxq->vport->vpi : 0, mbx_cmnd,
5443 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5444 phba->pport->port_state, psli->sli_flag);
5445
5446 if (mbx_cmnd != MBX_HEARTBEAT) {
5447 if (mboxq->vport) {
5448 lpfc_debugfs_disc_trc(mboxq->vport,
5449 LPFC_DISC_TRC_MBOX_VPORT,
5450 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5451 mbx_cmnd, mqe->un.mb_words[0],
5452 mqe->un.mb_words[1]);
5453 } else {
5454 lpfc_debugfs_disc_trc(phba->pport,
5455 LPFC_DISC_TRC_MBOX,
5456 "MBOX Send: cmd:x%x mb:x%x x%x",
5457 mbx_cmnd, mqe->un.mb_words[0],
5458 mqe->un.mb_words[1]);
5459 }
5460 }
5461 psli->slistat.mbox_cmd++;
5462
5463 /* Post the mailbox command to the port */
5464 rc = lpfc_sli4_mq_put(phba->sli4_hba.mbx_wq, mqe);
5465 if (rc != MBX_SUCCESS) {
5466 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_SLI,
5467 "(%d):2533 Mailbox command x%x (x%x) "
5468 "cannot issue Data: x%x x%x\n",
5469 mboxq->vport ? mboxq->vport->vpi : 0,
5470 mboxq->u.mb.mbxCommand,
5471 lpfc_sli4_mbox_opcode_get(phba, mboxq),
5472 psli->sli_flag, MBX_NOWAIT);
5473 goto out_not_finished;
5474 }
5475
5476 return rc;
5477
5478out_not_finished:
5479 spin_lock_irqsave(&phba->hbalock, iflags);
5480 mboxq->u.mb.mbxStatus = MBX_NOT_FINISHED;
5481 __lpfc_mbox_cmpl_put(phba, mboxq);
5482 /* Release the token */
5483 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
5484 phba->sli.mbox_active = NULL;
5485 spin_unlock_irqrestore(&phba->hbalock, iflags);
5486
5487 return MBX_NOT_FINISHED;
5488}
5489
5490/**
5491 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5492 * @phba: Pointer to HBA context object.
5493 * @pmbox: Pointer to mailbox object.
5494 * @flag: Flag indicating how the mailbox need to be processed.
5495 *
5496 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5497 * the API jump table function pointer from the lpfc_hba struct.
5498 *
5499 * Return codes the caller owns the mailbox command after the return of the
5500 * function.
5501 **/
5502int
5503lpfc_sli_issue_mbox(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmbox, uint32_t flag)
5504{
5505 return phba->lpfc_sli_issue_mbox(phba, pmbox, flag);
5506}
5507
5508/**
5509 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5510 * @phba: The hba struct for which this call is being executed.
5511 * @dev_grp: The HBA PCI-Device group number.
5512 *
5513 * This routine sets up the mbox interface API function jump table in @phba
5514 * struct.
5515 * Returns: 0 - success, -ENODEV - failure.
5516 **/
5517int
5518lpfc_mbox_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
5519{
5520
5521 switch (dev_grp) {
5522 case LPFC_PCI_DEV_LP:
5523 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s3;
5524 phba->lpfc_sli_handle_slow_ring_event =
5525 lpfc_sli_handle_slow_ring_event_s3;
5526 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s3;
5527 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s3;
5528 phba->lpfc_sli_brdready = lpfc_sli_brdready_s3;
5529 break;
5530 case LPFC_PCI_DEV_OC:
5531 phba->lpfc_sli_issue_mbox = lpfc_sli_issue_mbox_s4;
5532 phba->lpfc_sli_handle_slow_ring_event =
5533 lpfc_sli_handle_slow_ring_event_s4;
5534 phba->lpfc_sli_hbq_to_firmware = lpfc_sli_hbq_to_firmware_s4;
5535 phba->lpfc_sli_brdrestart = lpfc_sli_brdrestart_s4;
5536 phba->lpfc_sli_brdready = lpfc_sli_brdready_s4;
5537 break;
5538 default:
5539 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
5540 "1420 Invalid HBA PCI-device group: 0x%x\n",
5541 dev_grp);
5542 return -ENODEV;
5543 break;
5544 }
5545 return 0;
5546}
5547
5548/**
James Smart3621a712009-04-06 18:47:14 -04005549 * __lpfc_sli_ringtx_put - Add an iocb to the txq
James Smarte59058c2008-08-24 21:49:00 -04005550 * @phba: Pointer to HBA context object.
5551 * @pring: Pointer to driver SLI ring object.
5552 * @piocb: Pointer to address of newly added command iocb.
5553 *
5554 * This function is called with hbalock held to add a command
5555 * iocb to the txq when SLI layer cannot submit the command iocb
5556 * to the ring.
5557 **/
James Smart858c9f62007-06-17 19:56:39 -05005558static void
James Smart92d7f7b2007-06-17 19:56:38 -05005559__lpfc_sli_ringtx_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005560 struct lpfc_iocbq *piocb)
dea31012005-04-17 16:05:31 -05005561{
5562 /* Insert the caller's iocb in the txq tail for later processing. */
5563 list_add_tail(&piocb->list, &pring->txq);
5564 pring->txq_cnt++;
dea31012005-04-17 16:05:31 -05005565}
5566
James Smarte59058c2008-08-24 21:49:00 -04005567/**
James Smart3621a712009-04-06 18:47:14 -04005568 * lpfc_sli_next_iocb - Get the next iocb in the txq
James Smarte59058c2008-08-24 21:49:00 -04005569 * @phba: Pointer to HBA context object.
5570 * @pring: Pointer to driver SLI ring object.
5571 * @piocb: Pointer to address of newly added command iocb.
5572 *
5573 * This function is called with hbalock held before a new
5574 * iocb is submitted to the firmware. This function checks
5575 * txq to flush the iocbs in txq to Firmware before
5576 * submitting new iocbs to the Firmware.
5577 * If there are iocbs in the txq which need to be submitted
5578 * to firmware, lpfc_sli_next_iocb returns the first element
5579 * of the txq after dequeuing it from txq.
5580 * If there is no iocb in the txq then the function will return
5581 * *piocb and *piocb is set to NULL. Caller needs to check
5582 * *piocb to find if there are more commands in the txq.
5583 **/
dea31012005-04-17 16:05:31 -05005584static struct lpfc_iocbq *
5585lpfc_sli_next_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
James Smart2e0fef82007-06-17 19:56:36 -05005586 struct lpfc_iocbq **piocb)
dea31012005-04-17 16:05:31 -05005587{
5588 struct lpfc_iocbq * nextiocb;
5589
5590 nextiocb = lpfc_sli_ringtx_get(phba, pring);
5591 if (!nextiocb) {
5592 nextiocb = *piocb;
5593 *piocb = NULL;
5594 }
5595
5596 return nextiocb;
5597}
5598
James Smarte59058c2008-08-24 21:49:00 -04005599/**
James Smart3772a992009-05-22 14:50:54 -04005600 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04005601 * @phba: Pointer to HBA context object.
James Smart3772a992009-05-22 14:50:54 -04005602 * @ring_number: SLI ring number to issue iocb on.
James Smarte59058c2008-08-24 21:49:00 -04005603 * @piocb: Pointer to command iocb.
5604 * @flag: Flag indicating if this command can be put into txq.
5605 *
James Smart3772a992009-05-22 14:50:54 -04005606 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5607 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5608 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5609 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5610 * this function allows only iocbs for posting buffers. This function finds
5611 * next available slot in the command ring and posts the command to the
5612 * available slot and writes the port attention register to request HBA start
5613 * processing new iocb. If there is no slot available in the ring and
5614 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5615 * the function returns IOCB_BUSY.
James Smarte59058c2008-08-24 21:49:00 -04005616 *
James Smart3772a992009-05-22 14:50:54 -04005617 * This function is called with hbalock held. The function will return success
5618 * after it successfully submit the iocb to firmware or after adding to the
5619 * txq.
James Smarte59058c2008-08-24 21:49:00 -04005620 **/
James Smart98c9ea52007-10-27 13:37:33 -04005621static int
James Smart3772a992009-05-22 14:50:54 -04005622__lpfc_sli_issue_iocb_s3(struct lpfc_hba *phba, uint32_t ring_number,
dea31012005-04-17 16:05:31 -05005623 struct lpfc_iocbq *piocb, uint32_t flag)
5624{
5625 struct lpfc_iocbq *nextiocb;
5626 IOCB_t *iocb;
James Smart3772a992009-05-22 14:50:54 -04005627 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
dea31012005-04-17 16:05:31 -05005628
James Smart92d7f7b2007-06-17 19:56:38 -05005629 if (piocb->iocb_cmpl && (!piocb->vport) &&
5630 (piocb->iocb.ulpCommand != CMD_ABORT_XRI_CN) &&
5631 (piocb->iocb.ulpCommand != CMD_CLOSE_XRI_CN)) {
5632 lpfc_printf_log(phba, KERN_ERR,
5633 LOG_SLI | LOG_VPORT,
James Smarte8b62012007-08-02 11:10:09 -04005634 "1807 IOCB x%x failed. No vport\n",
James Smart92d7f7b2007-06-17 19:56:38 -05005635 piocb->iocb.ulpCommand);
5636 dump_stack();
5637 return IOCB_ERROR;
5638 }
5639
5640
Linas Vepstas8d63f372007-02-14 14:28:36 -06005641 /* If the PCI channel is in offline state, do not post iocbs. */
5642 if (unlikely(pci_channel_offline(phba->pcidev)))
5643 return IOCB_ERROR;
5644
James Smarta257bf92009-04-06 18:48:10 -04005645 /* If HBA has a deferred error attention, fail the iocb. */
5646 if (unlikely(phba->hba_flag & DEFER_ERATT))
5647 return IOCB_ERROR;
5648
dea31012005-04-17 16:05:31 -05005649 /*
5650 * We should never get an IOCB if we are in a < LINK_DOWN state
5651 */
James Smart2e0fef82007-06-17 19:56:36 -05005652 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
dea31012005-04-17 16:05:31 -05005653 return IOCB_ERROR;
5654
5655 /*
5656 * Check to see if we are blocking IOCB processing because of a
James Smart0b727fe2007-10-27 13:37:25 -04005657 * outstanding event.
dea31012005-04-17 16:05:31 -05005658 */
James Smart0b727fe2007-10-27 13:37:25 -04005659 if (unlikely(pring->flag & LPFC_STOP_IOCB_EVENT))
dea31012005-04-17 16:05:31 -05005660 goto iocb_busy;
5661
James Smart2e0fef82007-06-17 19:56:36 -05005662 if (unlikely(phba->link_state == LPFC_LINK_DOWN)) {
dea31012005-04-17 16:05:31 -05005663 /*
James Smart2680eea2007-04-25 09:52:55 -04005664 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
dea31012005-04-17 16:05:31 -05005665 * can be issued if the link is not up.
5666 */
5667 switch (piocb->iocb.ulpCommand) {
James Smart84774a42008-08-24 21:50:06 -04005668 case CMD_GEN_REQUEST64_CR:
5669 case CMD_GEN_REQUEST64_CX:
5670 if (!(phba->sli.sli_flag & LPFC_MENLO_MAINT) ||
5671 (piocb->iocb.un.genreq64.w5.hcsw.Rctl !=
5672 FC_FCP_CMND) ||
5673 (piocb->iocb.un.genreq64.w5.hcsw.Type !=
5674 MENLO_TRANSPORT_TYPE))
5675
5676 goto iocb_busy;
5677 break;
dea31012005-04-17 16:05:31 -05005678 case CMD_QUE_RING_BUF_CN:
5679 case CMD_QUE_RING_BUF64_CN:
dea31012005-04-17 16:05:31 -05005680 /*
5681 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5682 * completion, iocb_cmpl MUST be 0.
5683 */
5684 if (piocb->iocb_cmpl)
5685 piocb->iocb_cmpl = NULL;
5686 /*FALLTHROUGH*/
5687 case CMD_CREATE_XRI_CR:
James Smart2680eea2007-04-25 09:52:55 -04005688 case CMD_CLOSE_XRI_CN:
5689 case CMD_CLOSE_XRI_CX:
dea31012005-04-17 16:05:31 -05005690 break;
5691 default:
5692 goto iocb_busy;
5693 }
5694
5695 /*
5696 * For FCP commands, we must be in a state where we can process link
5697 * attention events.
5698 */
5699 } else if (unlikely(pring->ringno == phba->sli.fcp_ring &&
James Smart92d7f7b2007-06-17 19:56:38 -05005700 !(phba->sli.sli_flag & LPFC_PROCESS_LA))) {
dea31012005-04-17 16:05:31 -05005701 goto iocb_busy;
James Smart92d7f7b2007-06-17 19:56:38 -05005702 }
dea31012005-04-17 16:05:31 -05005703
dea31012005-04-17 16:05:31 -05005704 while ((iocb = lpfc_sli_next_iocb_slot(phba, pring)) &&
5705 (nextiocb = lpfc_sli_next_iocb(phba, pring, &piocb)))
5706 lpfc_sli_submit_iocb(phba, pring, iocb, nextiocb);
5707
5708 if (iocb)
5709 lpfc_sli_update_ring(phba, pring);
5710 else
5711 lpfc_sli_update_full_ring(phba, pring);
5712
5713 if (!piocb)
5714 return IOCB_SUCCESS;
5715
5716 goto out_busy;
5717
5718 iocb_busy:
5719 pring->stats.iocb_cmd_delay++;
5720
5721 out_busy:
5722
5723 if (!(flag & SLI_IOCB_RET_IOCB)) {
James Smart92d7f7b2007-06-17 19:56:38 -05005724 __lpfc_sli_ringtx_put(phba, pring, piocb);
dea31012005-04-17 16:05:31 -05005725 return IOCB_SUCCESS;
5726 }
5727
5728 return IOCB_BUSY;
5729}
5730
James Smart3772a992009-05-22 14:50:54 -04005731/**
James Smart4f774512009-05-22 14:52:35 -04005732 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5733 * @phba: Pointer to HBA context object.
5734 * @piocb: Pointer to command iocb.
5735 * @sglq: Pointer to the scatter gather queue object.
5736 *
5737 * This routine converts the bpl or bde that is in the IOCB
5738 * to a sgl list for the sli4 hardware. The physical address
5739 * of the bpl/bde is converted back to a virtual address.
5740 * If the IOCB contains a BPL then the list of BDE's is
5741 * converted to sli4_sge's. If the IOCB contains a single
5742 * BDE then it is converted to a single sli_sge.
5743 * The IOCB is still in cpu endianess so the contents of
5744 * the bpl can be used without byte swapping.
5745 *
5746 * Returns valid XRI = Success, NO_XRI = Failure.
5747**/
5748static uint16_t
5749lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
5750 struct lpfc_sglq *sglq)
5751{
5752 uint16_t xritag = NO_XRI;
5753 struct ulp_bde64 *bpl = NULL;
5754 struct ulp_bde64 bde;
5755 struct sli4_sge *sgl = NULL;
5756 IOCB_t *icmd;
5757 int numBdes = 0;
5758 int i = 0;
5759
5760 if (!piocbq || !sglq)
5761 return xritag;
5762
5763 sgl = (struct sli4_sge *)sglq->sgl;
5764 icmd = &piocbq->iocb;
5765 if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5766 numBdes = icmd->un.genreq64.bdl.bdeSize /
5767 sizeof(struct ulp_bde64);
5768 /* The addrHigh and addrLow fields within the IOCB
5769 * have not been byteswapped yet so there is no
5770 * need to swap them back.
5771 */
5772 bpl = (struct ulp_bde64 *)
5773 ((struct lpfc_dmabuf *)piocbq->context3)->virt;
5774
5775 if (!bpl)
5776 return xritag;
5777
5778 for (i = 0; i < numBdes; i++) {
5779 /* Should already be byte swapped. */
5780 sgl->addr_hi = bpl->addrHigh;
5781 sgl->addr_lo = bpl->addrLow;
5782 /* swap the size field back to the cpu so we
5783 * can assign it to the sgl.
5784 */
5785 bde.tus.w = le32_to_cpu(bpl->tus.w);
5786 bf_set(lpfc_sli4_sge_len, sgl, bde.tus.f.bdeSize);
5787 if ((i+1) == numBdes)
5788 bf_set(lpfc_sli4_sge_last, sgl, 1);
5789 else
5790 bf_set(lpfc_sli4_sge_last, sgl, 0);
5791 sgl->word2 = cpu_to_le32(sgl->word2);
5792 sgl->word3 = cpu_to_le32(sgl->word3);
5793 bpl++;
5794 sgl++;
5795 }
5796 } else if (icmd->un.genreq64.bdl.bdeFlags == BUFF_TYPE_BDE_64) {
5797 /* The addrHigh and addrLow fields of the BDE have not
5798 * been byteswapped yet so they need to be swapped
5799 * before putting them in the sgl.
5800 */
5801 sgl->addr_hi =
5802 cpu_to_le32(icmd->un.genreq64.bdl.addrHigh);
5803 sgl->addr_lo =
5804 cpu_to_le32(icmd->un.genreq64.bdl.addrLow);
5805 bf_set(lpfc_sli4_sge_len, sgl,
5806 icmd->un.genreq64.bdl.bdeSize);
5807 bf_set(lpfc_sli4_sge_last, sgl, 1);
5808 sgl->word2 = cpu_to_le32(sgl->word2);
5809 sgl->word3 = cpu_to_le32(sgl->word3);
5810 }
5811 return sglq->sli4_xritag;
5812}
5813
5814/**
5815 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5816 * @phba: Pointer to HBA context object.
James Smart4f774512009-05-22 14:52:35 -04005817 *
5818 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
James Smart8fa38512009-07-19 10:01:03 -04005819 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5820 * held.
James Smart4f774512009-05-22 14:52:35 -04005821 *
5822 * Return: index into SLI4 fast-path FCP queue index.
5823 **/
5824static uint32_t
James Smart8fa38512009-07-19 10:01:03 -04005825lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba *phba)
James Smart4f774512009-05-22 14:52:35 -04005826{
James Smart8fa38512009-07-19 10:01:03 -04005827 ++phba->fcp_qidx;
5828 if (phba->fcp_qidx >= phba->cfg_fcp_wq_count)
5829 phba->fcp_qidx = 0;
James Smart4f774512009-05-22 14:52:35 -04005830
James Smart8fa38512009-07-19 10:01:03 -04005831 return phba->fcp_qidx;
James Smart4f774512009-05-22 14:52:35 -04005832}
5833
5834/**
5835 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5836 * @phba: Pointer to HBA context object.
5837 * @piocb: Pointer to command iocb.
5838 * @wqe: Pointer to the work queue entry.
5839 *
5840 * This routine converts the iocb command to its Work Queue Entry
5841 * equivalent. The wqe pointer should not have any fields set when
5842 * this routine is called because it will memcpy over them.
5843 * This routine does not set the CQ_ID or the WQEC bits in the
5844 * wqe.
5845 *
5846 * Returns: 0 = Success, IOCB_ERROR = Failure.
5847 **/
5848static int
5849lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
5850 union lpfc_wqe *wqe)
5851{
5852 uint32_t payload_len = 0;
5853 uint8_t ct = 0;
5854 uint32_t fip;
5855 uint32_t abort_tag;
5856 uint8_t command_type = ELS_COMMAND_NON_FIP;
5857 uint8_t cmnd;
5858 uint16_t xritag;
5859 struct ulp_bde64 *bpl = NULL;
5860
5861 fip = bf_get(lpfc_fip_flag, &phba->sli4_hba.sli4_flags);
5862 /* The fcp commands will set command type */
James Smart0c287582009-06-10 17:22:56 -04005863 if (iocbq->iocb_flag & LPFC_IO_FCP)
James Smart4f774512009-05-22 14:52:35 -04005864 command_type = FCP_COMMAND;
James Smart0c287582009-06-10 17:22:56 -04005865 else if (fip && (iocbq->iocb_flag & LPFC_FIP_ELS))
5866 command_type = ELS_COMMAND_FIP;
5867 else
5868 command_type = ELS_COMMAND_NON_FIP;
5869
James Smart4f774512009-05-22 14:52:35 -04005870 /* Some of the fields are in the right position already */
5871 memcpy(wqe, &iocbq->iocb, sizeof(union lpfc_wqe));
5872 abort_tag = (uint32_t) iocbq->iotag;
5873 xritag = iocbq->sli4_xritag;
5874 wqe->words[7] = 0; /* The ct field has moved so reset */
5875 /* words0-2 bpl convert bde */
5876 if (iocbq->iocb.un.genreq64.bdl.bdeFlags == BUFF_TYPE_BLP_64) {
5877 bpl = (struct ulp_bde64 *)
5878 ((struct lpfc_dmabuf *)iocbq->context3)->virt;
5879 if (!bpl)
5880 return IOCB_ERROR;
5881
5882 /* Should already be byte swapped. */
5883 wqe->generic.bde.addrHigh = le32_to_cpu(bpl->addrHigh);
5884 wqe->generic.bde.addrLow = le32_to_cpu(bpl->addrLow);
5885 /* swap the size field back to the cpu so we
5886 * can assign it to the sgl.
5887 */
5888 wqe->generic.bde.tus.w = le32_to_cpu(bpl->tus.w);
5889 payload_len = wqe->generic.bde.tus.f.bdeSize;
5890 } else
5891 payload_len = iocbq->iocb.un.fcpi64.bdl.bdeSize;
5892
5893 iocbq->iocb.ulpIoTag = iocbq->iotag;
5894 cmnd = iocbq->iocb.ulpCommand;
5895
5896 switch (iocbq->iocb.ulpCommand) {
5897 case CMD_ELS_REQUEST64_CR:
5898 if (!iocbq->iocb.ulpLe) {
5899 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
5900 "2007 Only Limited Edition cmd Format"
5901 " supported 0x%x\n",
5902 iocbq->iocb.ulpCommand);
5903 return IOCB_ERROR;
5904 }
5905 wqe->els_req.payload_len = payload_len;
5906 /* Els_reguest64 has a TMO */
5907 bf_set(wqe_tmo, &wqe->els_req.wqe_com,
5908 iocbq->iocb.ulpTimeout);
5909 /* Need a VF for word 4 set the vf bit*/
5910 bf_set(els_req64_vf, &wqe->els_req, 0);
5911 /* And a VFID for word 12 */
5912 bf_set(els_req64_vfid, &wqe->els_req, 0);
5913 /*
5914 * Set ct field to 3, indicates that the context_tag field
5915 * contains the FCFI and remote N_Port_ID is
5916 * in word 5.
5917 */
5918
5919 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
5920 bf_set(lpfc_wqe_gen_context, &wqe->generic,
5921 iocbq->iocb.ulpContext);
5922
James Smart4f774512009-05-22 14:52:35 -04005923 bf_set(lpfc_wqe_gen_ct, &wqe->generic, ct);
5924 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5925 /* CCP CCPE PV PRI in word10 were set in the memcpy */
5926 break;
5927 case CMD_XMIT_SEQUENCE64_CR:
5928 /* word3 iocb=io_tag32 wqe=payload_offset */
5929 /* payload offset used for multilpe outstanding
5930 * sequences on the same exchange
5931 */
5932 wqe->words[3] = 0;
5933 /* word4 relative_offset memcpy */
5934 /* word5 r_ctl/df_ctl memcpy */
5935 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
5936 wqe->xmit_sequence.xmit_len = payload_len;
5937 break;
5938 case CMD_XMIT_BCAST64_CN:
5939 /* word3 iocb=iotag32 wqe=payload_len */
5940 wqe->words[3] = 0; /* no definition for this in wqe */
5941 /* word4 iocb=rsvd wqe=rsvd */
5942 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
5943 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
5944 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
5945 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
5946 break;
5947 case CMD_FCP_IWRITE64_CR:
5948 command_type = FCP_COMMAND_DATA_OUT;
5949 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
5950 * confusing.
5951 * word3 is payload_len: byte offset to the sgl entry for the
5952 * fcp_command.
5953 * word4 is total xfer len, same as the IOCB->ulpParameter.
5954 * word5 is initial xfer len 0 = wait for xfer-ready
5955 */
5956
5957 /* Always wait for xfer-ready before sending data */
5958 wqe->fcp_iwrite.initial_xfer_len = 0;
5959 /* word 4 (xfer length) should have been set on the memcpy */
5960
5961 /* allow write to fall through to read */
5962 case CMD_FCP_IREAD64_CR:
5963 /* FCP_CMD is always the 1st sgl entry */
5964 wqe->fcp_iread.payload_len =
5965 payload_len + sizeof(struct fcp_rsp);
5966
5967 /* word 4 (xfer length) should have been set on the memcpy */
5968
5969 bf_set(lpfc_wqe_gen_erp, &wqe->generic,
5970 iocbq->iocb.ulpFCP2Rcvy);
5971 bf_set(lpfc_wqe_gen_lnk, &wqe->generic, iocbq->iocb.ulpXS);
5972 /* The XC bit and the XS bit are similar. The driver never
5973 * tracked whether or not the exchange was previouslly open.
5974 * XC = Exchange create, 0 is create. 1 is already open.
5975 * XS = link cmd: 1 do not close the exchange after command.
5976 * XS = 0 close exchange when command completes.
5977 * The only time we would not set the XC bit is when the XS bit
5978 * is set and we are sending our 2nd or greater command on
5979 * this exchange.
5980 */
James Smart4f774512009-05-22 14:52:35 -04005981 /* Always open the exchange */
5982 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5983
5984 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5985 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
James Smartf1126682009-06-10 17:22:44 -04005986 break;
5987 case CMD_FCP_ICMND64_CR:
5988 /* Always open the exchange */
5989 bf_set(wqe_xc, &wqe->fcp_iread.wqe_com, 0);
5990
5991 wqe->words[4] = 0;
5992 wqe->words[10] &= 0xffff0000; /* zero out ebde count */
5993 bf_set(lpfc_wqe_gen_pu, &wqe->generic, 0);
James Smart4f774512009-05-22 14:52:35 -04005994 break;
5995 case CMD_GEN_REQUEST64_CR:
5996 /* word3 command length is described as byte offset to the
5997 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
5998 * sgl[0] = cmnd
5999 * sgl[1] = rsp.
6000 *
6001 */
6002 wqe->gen_req.command_len = payload_len;
6003 /* Word4 parameter copied in the memcpy */
6004 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6005 /* word6 context tag copied in memcpy */
6006 if (iocbq->iocb.ulpCt_h || iocbq->iocb.ulpCt_l) {
6007 ct = ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l);
6008 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6009 "2015 Invalid CT %x command 0x%x\n",
6010 ct, iocbq->iocb.ulpCommand);
6011 return IOCB_ERROR;
6012 }
6013 bf_set(lpfc_wqe_gen_ct, &wqe->generic, 0);
6014 bf_set(wqe_tmo, &wqe->gen_req.wqe_com,
6015 iocbq->iocb.ulpTimeout);
6016
6017 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6018 command_type = OTHER_COMMAND;
6019 break;
6020 case CMD_XMIT_ELS_RSP64_CX:
6021 /* words0-2 BDE memcpy */
6022 /* word3 iocb=iotag32 wqe=rsvd */
6023 wqe->words[3] = 0;
6024 /* word4 iocb=did wge=rsvd. */
6025 wqe->words[4] = 0;
6026 /* word5 iocb=rsvd wge=did */
6027 bf_set(wqe_els_did, &wqe->xmit_els_rsp.wqe_dest,
6028 iocbq->iocb.un.elsreq64.remoteID);
6029
6030 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6031 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6032
6033 bf_set(lpfc_wqe_gen_pu, &wqe->generic, iocbq->iocb.ulpPU);
6034 bf_set(wqe_rcvoxid, &wqe->generic, iocbq->iocb.ulpContext);
6035 if (!iocbq->iocb.ulpCt_h && iocbq->iocb.ulpCt_l)
6036 bf_set(lpfc_wqe_gen_context, &wqe->generic,
6037 iocbq->vport->vpi + phba->vpi_base);
6038 command_type = OTHER_COMMAND;
6039 break;
6040 case CMD_CLOSE_XRI_CN:
6041 case CMD_ABORT_XRI_CN:
6042 case CMD_ABORT_XRI_CX:
6043 /* words 0-2 memcpy should be 0 rserved */
6044 /* port will send abts */
6045 if (iocbq->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6046 /*
6047 * The link is down so the fw does not need to send abts
6048 * on the wire.
6049 */
6050 bf_set(abort_cmd_ia, &wqe->abort_cmd, 1);
6051 else
6052 bf_set(abort_cmd_ia, &wqe->abort_cmd, 0);
6053 bf_set(abort_cmd_criteria, &wqe->abort_cmd, T_XRI_TAG);
6054 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
6055 wqe->words[5] = 0;
6056 bf_set(lpfc_wqe_gen_ct, &wqe->generic,
6057 ((iocbq->iocb.ulpCt_h << 1) | iocbq->iocb.ulpCt_l));
6058 abort_tag = iocbq->iocb.un.acxri.abortIoTag;
6059 wqe->generic.abort_tag = abort_tag;
6060 /*
6061 * The abort handler will send us CMD_ABORT_XRI_CN or
6062 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6063 */
6064 bf_set(lpfc_wqe_gen_command, &wqe->generic, CMD_ABORT_XRI_CX);
6065 cmnd = CMD_ABORT_XRI_CX;
6066 command_type = OTHER_COMMAND;
6067 xritag = 0;
6068 break;
6069 case CMD_XRI_ABORTED_CX:
6070 case CMD_CREATE_XRI_CR: /* Do we expect to use this? */
6071 /* words0-2 are all 0's no bde */
6072 /* word3 and word4 are rsvrd */
6073 wqe->words[3] = 0;
6074 wqe->words[4] = 0;
6075 /* word5 iocb=rsvd wge=did */
6076 /* There is no remote port id in the IOCB? */
6077 /* Let this fall through and fail */
6078 case CMD_IOCB_FCP_IBIDIR64_CR: /* bidirectional xfer */
6079 case CMD_FCP_TSEND64_CX: /* Target mode send xfer-ready */
6080 case CMD_FCP_TRSP64_CX: /* Target mode rcv */
6081 case CMD_FCP_AUTO_TRSP_CX: /* Auto target rsp */
6082 default:
6083 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
6084 "2014 Invalid command 0x%x\n",
6085 iocbq->iocb.ulpCommand);
6086 return IOCB_ERROR;
6087 break;
6088
6089 }
6090 bf_set(lpfc_wqe_gen_xri, &wqe->generic, xritag);
6091 bf_set(lpfc_wqe_gen_request_tag, &wqe->generic, iocbq->iotag);
6092 wqe->generic.abort_tag = abort_tag;
6093 bf_set(lpfc_wqe_gen_cmd_type, &wqe->generic, command_type);
6094 bf_set(lpfc_wqe_gen_command, &wqe->generic, cmnd);
6095 bf_set(lpfc_wqe_gen_class, &wqe->generic, iocbq->iocb.ulpClass);
6096 bf_set(lpfc_wqe_gen_cq_id, &wqe->generic, LPFC_WQE_CQ_ID_DEFAULT);
6097
6098 return 0;
6099}
6100
6101/**
6102 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6103 * @phba: Pointer to HBA context object.
6104 * @ring_number: SLI ring number to issue iocb on.
6105 * @piocb: Pointer to command iocb.
6106 * @flag: Flag indicating if this command can be put into txq.
6107 *
6108 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6109 * an iocb command to an HBA with SLI-4 interface spec.
6110 *
6111 * This function is called with hbalock held. The function will return success
6112 * after it successfully submit the iocb to firmware or after adding to the
6113 * txq.
6114 **/
6115static int
6116__lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
6117 struct lpfc_iocbq *piocb, uint32_t flag)
6118{
6119 struct lpfc_sglq *sglq;
6120 uint16_t xritag;
6121 union lpfc_wqe wqe;
6122 struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
6123 uint32_t fcp_wqidx;
6124
6125 if (piocb->sli4_xritag == NO_XRI) {
6126 if (piocb->iocb.ulpCommand == CMD_ABORT_XRI_CN ||
6127 piocb->iocb.ulpCommand == CMD_CLOSE_XRI_CN)
6128 sglq = NULL;
6129 else {
6130 sglq = __lpfc_sli_get_sglq(phba);
6131 if (!sglq)
6132 return IOCB_ERROR;
6133 piocb->sli4_xritag = sglq->sli4_xritag;
6134 }
6135 } else if (piocb->iocb_flag & LPFC_IO_FCP) {
6136 sglq = NULL; /* These IO's already have an XRI and
6137 * a mapped sgl.
6138 */
6139 } else {
6140 /* This is a continuation of a commandi,(CX) so this
6141 * sglq is on the active list
6142 */
6143 sglq = __lpfc_get_active_sglq(phba, piocb->sli4_xritag);
6144 if (!sglq)
6145 return IOCB_ERROR;
6146 }
6147
6148 if (sglq) {
6149 xritag = lpfc_sli4_bpl2sgl(phba, piocb, sglq);
6150 if (xritag != sglq->sli4_xritag)
6151 return IOCB_ERROR;
6152 }
6153
6154 if (lpfc_sli4_iocb2wqe(phba, piocb, &wqe))
6155 return IOCB_ERROR;
6156
6157 if (piocb->iocb_flag & LPFC_IO_FCP) {
James Smart8fa38512009-07-19 10:01:03 -04006158 fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
James Smart4f774512009-05-22 14:52:35 -04006159 if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[fcp_wqidx], &wqe))
6160 return IOCB_ERROR;
6161 } else {
6162 if (lpfc_sli4_wq_put(phba->sli4_hba.els_wq, &wqe))
6163 return IOCB_ERROR;
6164 }
6165 lpfc_sli_ringtxcmpl_put(phba, pring, piocb);
6166
6167 return 0;
6168}
6169
6170/**
James Smart3772a992009-05-22 14:50:54 -04006171 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6172 *
6173 * This routine wraps the actual lockless version for issusing IOCB function
6174 * pointer from the lpfc_hba struct.
6175 *
6176 * Return codes:
6177 * IOCB_ERROR - Error
6178 * IOCB_SUCCESS - Success
6179 * IOCB_BUSY - Busy
6180 **/
6181static inline int
6182__lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
6183 struct lpfc_iocbq *piocb, uint32_t flag)
6184{
6185 return phba->__lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
6186}
6187
6188/**
6189 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6190 * @phba: The hba struct for which this call is being executed.
6191 * @dev_grp: The HBA PCI-Device group number.
6192 *
6193 * This routine sets up the SLI interface API function jump table in @phba
6194 * struct.
6195 * Returns: 0 - success, -ENODEV - failure.
6196 **/
6197int
6198lpfc_sli_api_table_setup(struct lpfc_hba *phba, uint8_t dev_grp)
6199{
6200
6201 switch (dev_grp) {
6202 case LPFC_PCI_DEV_LP:
6203 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s3;
6204 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s3;
6205 break;
James Smart4f774512009-05-22 14:52:35 -04006206 case LPFC_PCI_DEV_OC:
6207 phba->__lpfc_sli_issue_iocb = __lpfc_sli_issue_iocb_s4;
6208 phba->__lpfc_sli_release_iocbq = __lpfc_sli_release_iocbq_s4;
6209 break;
James Smart3772a992009-05-22 14:50:54 -04006210 default:
6211 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
6212 "1419 Invalid HBA PCI-device group: 0x%x\n",
6213 dev_grp);
6214 return -ENODEV;
6215 break;
6216 }
6217 phba->lpfc_get_iocb_from_iocbq = lpfc_get_iocb_from_iocbq;
6218 return 0;
6219}
James Smart92d7f7b2007-06-17 19:56:38 -05006220
James Smarte59058c2008-08-24 21:49:00 -04006221/**
James Smart3621a712009-04-06 18:47:14 -04006222 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
James Smarte59058c2008-08-24 21:49:00 -04006223 * @phba: Pointer to HBA context object.
6224 * @pring: Pointer to driver SLI ring object.
6225 * @piocb: Pointer to command iocb.
6226 * @flag: Flag indicating if this command can be put into txq.
6227 *
6228 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6229 * function. This function gets the hbalock and calls
6230 * __lpfc_sli_issue_iocb function and will return the error returned
6231 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6232 * functions which do not hold hbalock.
6233 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006234int
James Smart3772a992009-05-22 14:50:54 -04006235lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
James Smart92d7f7b2007-06-17 19:56:38 -05006236 struct lpfc_iocbq *piocb, uint32_t flag)
6237{
6238 unsigned long iflags;
6239 int rc;
6240
6241 spin_lock_irqsave(&phba->hbalock, iflags);
James Smart3772a992009-05-22 14:50:54 -04006242 rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb, flag);
James Smart92d7f7b2007-06-17 19:56:38 -05006243 spin_unlock_irqrestore(&phba->hbalock, iflags);
6244
6245 return rc;
6246}
6247
James Smarte59058c2008-08-24 21:49:00 -04006248/**
James Smart3621a712009-04-06 18:47:14 -04006249 * lpfc_extra_ring_setup - Extra ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006250 * @phba: Pointer to HBA context object.
6251 *
6252 * This function is called while driver attaches with the
6253 * HBA to setup the extra ring. The extra ring is used
6254 * only when driver needs to support target mode functionality
6255 * or IP over FC functionalities.
6256 *
6257 * This function is called with no lock held.
6258 **/
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006259static int
6260lpfc_extra_ring_setup( struct lpfc_hba *phba)
6261{
6262 struct lpfc_sli *psli;
6263 struct lpfc_sli_ring *pring;
6264
6265 psli = &phba->sli;
6266
6267 /* Adjust cmd/rsp ring iocb entries more evenly */
James Smarta4bc3372006-12-02 13:34:16 -05006268
6269 /* Take some away from the FCP ring */
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006270 pring = &psli->ring[psli->fcp_ring];
6271 pring->numCiocb -= SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6272 pring->numRiocb -= SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6273 pring->numCiocb -= SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6274 pring->numRiocb -= SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6275
James Smarta4bc3372006-12-02 13:34:16 -05006276 /* and give them to the extra ring */
6277 pring = &psli->ring[psli->extra_ring];
6278
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006279 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6280 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6281 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6282 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
6283
6284 /* Setup default profile for this ring */
6285 pring->iotag_max = 4096;
6286 pring->num_mask = 1;
6287 pring->prt[0].profile = 0; /* Mask 0 */
James Smarta4bc3372006-12-02 13:34:16 -05006288 pring->prt[0].rctl = phba->cfg_multi_ring_rctl;
6289 pring->prt[0].type = phba->cfg_multi_ring_type;
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006290 pring->prt[0].lpfc_sli_rcv_unsol_event = NULL;
6291 return 0;
6292}
6293
James Smarte59058c2008-08-24 21:49:00 -04006294/**
James Smart3621a712009-04-06 18:47:14 -04006295 * lpfc_sli_async_event_handler - ASYNC iocb handler function
James Smarte59058c2008-08-24 21:49:00 -04006296 * @phba: Pointer to HBA context object.
6297 * @pring: Pointer to driver SLI ring object.
6298 * @iocbq: Pointer to iocb object.
6299 *
6300 * This function is called by the slow ring event handler
6301 * function when there is an ASYNC event iocb in the ring.
6302 * This function is called with no lock held.
6303 * Currently this function handles only temperature related
6304 * ASYNC events. The function decodes the temperature sensor
6305 * event message and posts events for the management applications.
6306 **/
James Smart98c9ea52007-10-27 13:37:33 -04006307static void
James Smart57127f12007-10-27 13:37:05 -04006308lpfc_sli_async_event_handler(struct lpfc_hba * phba,
6309 struct lpfc_sli_ring * pring, struct lpfc_iocbq * iocbq)
6310{
6311 IOCB_t *icmd;
6312 uint16_t evt_code;
6313 uint16_t temp;
6314 struct temp_event temp_event_data;
6315 struct Scsi_Host *shost;
James Smarta257bf92009-04-06 18:48:10 -04006316 uint32_t *iocb_w;
James Smart57127f12007-10-27 13:37:05 -04006317
6318 icmd = &iocbq->iocb;
6319 evt_code = icmd->un.asyncstat.evt_code;
6320 temp = icmd->ulpContext;
6321
6322 if ((evt_code != ASYNC_TEMP_WARN) &&
6323 (evt_code != ASYNC_TEMP_SAFE)) {
James Smarta257bf92009-04-06 18:48:10 -04006324 iocb_w = (uint32_t *) icmd;
James Smart57127f12007-10-27 13:37:05 -04006325 lpfc_printf_log(phba,
6326 KERN_ERR,
6327 LOG_SLI,
James Smart76bb24e2007-10-27 13:38:00 -04006328 "0346 Ring %d handler: unexpected ASYNC_STATUS"
James Smarte4e74272009-07-19 10:01:38 -04006329 " evt_code 0x%x\n"
James Smarta257bf92009-04-06 18:48:10 -04006330 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6331 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6332 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6333 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
James Smart57127f12007-10-27 13:37:05 -04006334 pring->ringno,
James Smarta257bf92009-04-06 18:48:10 -04006335 icmd->un.asyncstat.evt_code,
6336 iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
6337 iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
6338 iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
6339 iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
6340
James Smart57127f12007-10-27 13:37:05 -04006341 return;
6342 }
6343 temp_event_data.data = (uint32_t)temp;
6344 temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
6345 if (evt_code == ASYNC_TEMP_WARN) {
6346 temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
6347 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006348 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006349 LOG_TEMP,
James Smart76bb24e2007-10-27 13:38:00 -04006350 "0347 Adapter is very hot, please take "
James Smart57127f12007-10-27 13:37:05 -04006351 "corrective action. temperature : %d Celsius\n",
6352 temp);
6353 }
6354 if (evt_code == ASYNC_TEMP_SAFE) {
6355 temp_event_data.event_code = LPFC_NORMAL_TEMP;
6356 lpfc_printf_log(phba,
James Smart09372822008-01-11 01:52:54 -05006357 KERN_ERR,
James Smart57127f12007-10-27 13:37:05 -04006358 LOG_TEMP,
6359 "0340 Adapter temperature is OK now. "
6360 "temperature : %d Celsius\n",
6361 temp);
6362 }
6363
6364 /* Send temperature change event to applications */
6365 shost = lpfc_shost_from_vport(phba->pport);
6366 fc_host_post_vendor_event(shost, fc_get_event_number(),
6367 sizeof(temp_event_data), (char *) &temp_event_data,
James Smartddcc50f2008-12-04 22:38:46 -05006368 LPFC_NL_VENDOR_ID);
James Smart57127f12007-10-27 13:37:05 -04006369
6370}
6371
6372
James Smarte59058c2008-08-24 21:49:00 -04006373/**
James Smart3621a712009-04-06 18:47:14 -04006374 * lpfc_sli_setup - SLI ring setup function
James Smarte59058c2008-08-24 21:49:00 -04006375 * @phba: Pointer to HBA context object.
6376 *
6377 * lpfc_sli_setup sets up rings of the SLI interface with
6378 * number of iocbs per ring and iotags. This function is
6379 * called while driver attach to the HBA and before the
6380 * interrupts are enabled. So there is no need for locking.
6381 *
6382 * This function always returns 0.
6383 **/
dea31012005-04-17 16:05:31 -05006384int
6385lpfc_sli_setup(struct lpfc_hba *phba)
6386{
James Smarted957682007-06-17 19:56:37 -05006387 int i, totiocbsize = 0;
dea31012005-04-17 16:05:31 -05006388 struct lpfc_sli *psli = &phba->sli;
6389 struct lpfc_sli_ring *pring;
6390
6391 psli->num_rings = MAX_CONFIGURED_RINGS;
6392 psli->sli_flag = 0;
6393 psli->fcp_ring = LPFC_FCP_RING;
6394 psli->next_ring = LPFC_FCP_NEXT_RING;
James Smarta4bc3372006-12-02 13:34:16 -05006395 psli->extra_ring = LPFC_EXTRA_RING;
dea31012005-04-17 16:05:31 -05006396
James Bottomley604a3e32005-10-29 10:28:33 -05006397 psli->iocbq_lookup = NULL;
6398 psli->iocbq_lookup_len = 0;
6399 psli->last_iotag = 0;
6400
dea31012005-04-17 16:05:31 -05006401 for (i = 0; i < psli->num_rings; i++) {
6402 pring = &psli->ring[i];
6403 switch (i) {
6404 case LPFC_FCP_RING: /* ring 0 - FCP */
6405 /* numCiocb and numRiocb are used in config_port */
6406 pring->numCiocb = SLI2_IOCB_CMD_R0_ENTRIES;
6407 pring->numRiocb = SLI2_IOCB_RSP_R0_ENTRIES;
6408 pring->numCiocb += SLI2_IOCB_CMD_R1XTRA_ENTRIES;
6409 pring->numRiocb += SLI2_IOCB_RSP_R1XTRA_ENTRIES;
6410 pring->numCiocb += SLI2_IOCB_CMD_R3XTRA_ENTRIES;
6411 pring->numRiocb += SLI2_IOCB_RSP_R3XTRA_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006412 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006413 SLI3_IOCB_CMD_SIZE :
6414 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006415 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006416 SLI3_IOCB_RSP_SIZE :
6417 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006418 pring->iotag_ctr = 0;
6419 pring->iotag_max =
James Smart92d7f7b2007-06-17 19:56:38 -05006420 (phba->cfg_hba_queue_depth * 2);
dea31012005-04-17 16:05:31 -05006421 pring->fast_iotag = pring->iotag_max;
6422 pring->num_mask = 0;
6423 break;
James Smarta4bc3372006-12-02 13:34:16 -05006424 case LPFC_EXTRA_RING: /* ring 1 - EXTRA */
dea31012005-04-17 16:05:31 -05006425 /* numCiocb and numRiocb are used in config_port */
6426 pring->numCiocb = SLI2_IOCB_CMD_R1_ENTRIES;
6427 pring->numRiocb = SLI2_IOCB_RSP_R1_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006428 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006429 SLI3_IOCB_CMD_SIZE :
6430 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006431 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006432 SLI3_IOCB_RSP_SIZE :
6433 SLI2_IOCB_RSP_SIZE;
James Smart2e0fef82007-06-17 19:56:36 -05006434 pring->iotag_max = phba->cfg_hba_queue_depth;
dea31012005-04-17 16:05:31 -05006435 pring->num_mask = 0;
6436 break;
6437 case LPFC_ELS_RING: /* ring 2 - ELS / CT */
6438 /* numCiocb and numRiocb are used in config_port */
6439 pring->numCiocb = SLI2_IOCB_CMD_R2_ENTRIES;
6440 pring->numRiocb = SLI2_IOCB_RSP_R2_ENTRIES;
James Smarted957682007-06-17 19:56:37 -05006441 pring->sizeCiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006442 SLI3_IOCB_CMD_SIZE :
6443 SLI2_IOCB_CMD_SIZE;
James Smarted957682007-06-17 19:56:37 -05006444 pring->sizeRiocb = (phba->sli_rev == 3) ?
James Smart92d7f7b2007-06-17 19:56:38 -05006445 SLI3_IOCB_RSP_SIZE :
6446 SLI2_IOCB_RSP_SIZE;
dea31012005-04-17 16:05:31 -05006447 pring->fast_iotag = 0;
6448 pring->iotag_ctr = 0;
6449 pring->iotag_max = 4096;
James Smart57127f12007-10-27 13:37:05 -04006450 pring->lpfc_sli_rcv_async_status =
6451 lpfc_sli_async_event_handler;
dea31012005-04-17 16:05:31 -05006452 pring->num_mask = 4;
6453 pring->prt[0].profile = 0; /* Mask 0 */
6454 pring->prt[0].rctl = FC_ELS_REQ;
6455 pring->prt[0].type = FC_ELS_DATA;
6456 pring->prt[0].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006457 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006458 pring->prt[1].profile = 0; /* Mask 1 */
6459 pring->prt[1].rctl = FC_ELS_RSP;
6460 pring->prt[1].type = FC_ELS_DATA;
6461 pring->prt[1].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006462 lpfc_els_unsol_event;
dea31012005-04-17 16:05:31 -05006463 pring->prt[2].profile = 0; /* Mask 2 */
6464 /* NameServer Inquiry */
6465 pring->prt[2].rctl = FC_UNSOL_CTL;
6466 /* NameServer */
6467 pring->prt[2].type = FC_COMMON_TRANSPORT_ULP;
6468 pring->prt[2].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006469 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05006470 pring->prt[3].profile = 0; /* Mask 3 */
6471 /* NameServer response */
6472 pring->prt[3].rctl = FC_SOL_CTL;
6473 /* NameServer */
6474 pring->prt[3].type = FC_COMMON_TRANSPORT_ULP;
6475 pring->prt[3].lpfc_sli_rcv_unsol_event =
James Smart92d7f7b2007-06-17 19:56:38 -05006476 lpfc_ct_unsol_event;
dea31012005-04-17 16:05:31 -05006477 break;
6478 }
James Smarted957682007-06-17 19:56:37 -05006479 totiocbsize += (pring->numCiocb * pring->sizeCiocb) +
James Smart92d7f7b2007-06-17 19:56:38 -05006480 (pring->numRiocb * pring->sizeRiocb);
dea31012005-04-17 16:05:31 -05006481 }
James Smarted957682007-06-17 19:56:37 -05006482 if (totiocbsize > MAX_SLIM_IOCB_SIZE) {
dea31012005-04-17 16:05:31 -05006483 /* Too many cmd / rsp ring entries in SLI2 SLIM */
James Smarte8b62012007-08-02 11:10:09 -04006484 printk(KERN_ERR "%d:0462 Too many cmd / rsp ring entries in "
6485 "SLI2 SLIM Data: x%x x%lx\n",
6486 phba->brd_no, totiocbsize,
6487 (unsigned long) MAX_SLIM_IOCB_SIZE);
dea31012005-04-17 16:05:31 -05006488 }
Jamie Wellnitzcf5bf972006-02-28 22:33:08 -05006489 if (phba->cfg_multi_ring_support == 2)
6490 lpfc_extra_ring_setup(phba);
dea31012005-04-17 16:05:31 -05006491
6492 return 0;
6493}
6494
James Smarte59058c2008-08-24 21:49:00 -04006495/**
James Smart3621a712009-04-06 18:47:14 -04006496 * lpfc_sli_queue_setup - Queue initialization function
James Smarte59058c2008-08-24 21:49:00 -04006497 * @phba: Pointer to HBA context object.
6498 *
6499 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6500 * ring. This function also initializes ring indices of each ring.
6501 * This function is called during the initialization of the SLI
6502 * interface of an HBA.
6503 * This function is called with no lock held and always returns
6504 * 1.
6505 **/
dea31012005-04-17 16:05:31 -05006506int
James Smart2e0fef82007-06-17 19:56:36 -05006507lpfc_sli_queue_setup(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006508{
6509 struct lpfc_sli *psli;
6510 struct lpfc_sli_ring *pring;
James Bottomley604a3e32005-10-29 10:28:33 -05006511 int i;
dea31012005-04-17 16:05:31 -05006512
6513 psli = &phba->sli;
James Smart2e0fef82007-06-17 19:56:36 -05006514 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006515 INIT_LIST_HEAD(&psli->mboxq);
James Smart92d7f7b2007-06-17 19:56:38 -05006516 INIT_LIST_HEAD(&psli->mboxq_cmpl);
dea31012005-04-17 16:05:31 -05006517 /* Initialize list headers for txq and txcmplq as double linked lists */
6518 for (i = 0; i < psli->num_rings; i++) {
6519 pring = &psli->ring[i];
6520 pring->ringno = i;
6521 pring->next_cmdidx = 0;
6522 pring->local_getidx = 0;
6523 pring->cmdidx = 0;
6524 INIT_LIST_HEAD(&pring->txq);
6525 INIT_LIST_HEAD(&pring->txcmplq);
6526 INIT_LIST_HEAD(&pring->iocb_continueq);
James Smart9c2face2008-01-11 01:53:18 -05006527 INIT_LIST_HEAD(&pring->iocb_continue_saveq);
dea31012005-04-17 16:05:31 -05006528 INIT_LIST_HEAD(&pring->postbufq);
dea31012005-04-17 16:05:31 -05006529 }
James Smart2e0fef82007-06-17 19:56:36 -05006530 spin_unlock_irq(&phba->hbalock);
6531 return 1;
dea31012005-04-17 16:05:31 -05006532}
6533
James Smarte59058c2008-08-24 21:49:00 -04006534/**
James Smart04c68492009-05-22 14:52:52 -04006535 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6536 * @phba: Pointer to HBA context object.
6537 *
6538 * This routine flushes the mailbox command subsystem. It will unconditionally
6539 * flush all the mailbox commands in the three possible stages in the mailbox
6540 * command sub-system: pending mailbox command queue; the outstanding mailbox
6541 * command; and completed mailbox command queue. It is caller's responsibility
6542 * to make sure that the driver is in the proper state to flush the mailbox
6543 * command sub-system. Namely, the posting of mailbox commands into the
6544 * pending mailbox command queue from the various clients must be stopped;
6545 * either the HBA is in a state that it will never works on the outstanding
6546 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6547 * mailbox command has been completed.
6548 **/
6549static void
6550lpfc_sli_mbox_sys_flush(struct lpfc_hba *phba)
6551{
6552 LIST_HEAD(completions);
6553 struct lpfc_sli *psli = &phba->sli;
6554 LPFC_MBOXQ_t *pmb;
6555 unsigned long iflag;
6556
6557 /* Flush all the mailbox commands in the mbox system */
6558 spin_lock_irqsave(&phba->hbalock, iflag);
6559 /* The pending mailbox command queue */
6560 list_splice_init(&phba->sli.mboxq, &completions);
6561 /* The outstanding active mailbox command */
6562 if (psli->mbox_active) {
6563 list_add_tail(&psli->mbox_active->list, &completions);
6564 psli->mbox_active = NULL;
6565 psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
6566 }
6567 /* The completed mailbox command queue */
6568 list_splice_init(&phba->sli.mboxq_cmpl, &completions);
6569 spin_unlock_irqrestore(&phba->hbalock, iflag);
6570
6571 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6572 while (!list_empty(&completions)) {
6573 list_remove_head(&completions, pmb, LPFC_MBOXQ_t, list);
6574 pmb->u.mb.mbxStatus = MBX_NOT_FINISHED;
6575 if (pmb->mbox_cmpl)
6576 pmb->mbox_cmpl(phba, pmb);
6577 }
6578}
6579
6580/**
James Smart3621a712009-04-06 18:47:14 -04006581 * lpfc_sli_host_down - Vport cleanup function
James Smarte59058c2008-08-24 21:49:00 -04006582 * @vport: Pointer to virtual port object.
6583 *
6584 * lpfc_sli_host_down is called to clean up the resources
6585 * associated with a vport before destroying virtual
6586 * port data structures.
6587 * This function does following operations:
6588 * - Free discovery resources associated with this virtual
6589 * port.
6590 * - Free iocbs associated with this virtual port in
6591 * the txq.
6592 * - Send abort for all iocb commands associated with this
6593 * vport in txcmplq.
6594 *
6595 * This function is called with no lock held and always returns 1.
6596 **/
dea31012005-04-17 16:05:31 -05006597int
James Smart92d7f7b2007-06-17 19:56:38 -05006598lpfc_sli_host_down(struct lpfc_vport *vport)
6599{
James Smart858c9f62007-06-17 19:56:39 -05006600 LIST_HEAD(completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006601 struct lpfc_hba *phba = vport->phba;
6602 struct lpfc_sli *psli = &phba->sli;
6603 struct lpfc_sli_ring *pring;
6604 struct lpfc_iocbq *iocb, *next_iocb;
James Smart92d7f7b2007-06-17 19:56:38 -05006605 int i;
6606 unsigned long flags = 0;
6607 uint16_t prev_pring_flag;
6608
6609 lpfc_cleanup_discovery_resources(vport);
6610
6611 spin_lock_irqsave(&phba->hbalock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006612 for (i = 0; i < psli->num_rings; i++) {
6613 pring = &psli->ring[i];
6614 prev_pring_flag = pring->flag;
James Smart5e9d9b82008-06-14 22:52:53 -04006615 /* Only slow rings */
6616 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006617 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006618 /* Set the lpfc data pending flag */
6619 set_bit(LPFC_DATA_READY, &phba->data_flags);
6620 }
James Smart92d7f7b2007-06-17 19:56:38 -05006621 /*
6622 * Error everything on the txq since these iocbs have not been
6623 * given to the FW yet.
6624 */
James Smart92d7f7b2007-06-17 19:56:38 -05006625 list_for_each_entry_safe(iocb, next_iocb, &pring->txq, list) {
6626 if (iocb->vport != vport)
6627 continue;
James Smart858c9f62007-06-17 19:56:39 -05006628 list_move_tail(&iocb->list, &completions);
James Smart92d7f7b2007-06-17 19:56:38 -05006629 pring->txq_cnt--;
James Smart92d7f7b2007-06-17 19:56:38 -05006630 }
6631
6632 /* Next issue ABTS for everything on the txcmplq */
6633 list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq,
6634 list) {
6635 if (iocb->vport != vport)
6636 continue;
6637 lpfc_sli_issue_abort_iotag(phba, pring, iocb);
6638 }
6639
6640 pring->flag = prev_pring_flag;
6641 }
6642
6643 spin_unlock_irqrestore(&phba->hbalock, flags);
6644
James Smarta257bf92009-04-06 18:48:10 -04006645 /* Cancel all the IOCBs from the completions list */
6646 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6647 IOERR_SLI_DOWN);
James Smart92d7f7b2007-06-17 19:56:38 -05006648 return 1;
6649}
6650
James Smarte59058c2008-08-24 21:49:00 -04006651/**
James Smart3621a712009-04-06 18:47:14 -04006652 * lpfc_sli_hba_down - Resource cleanup function for the HBA
James Smarte59058c2008-08-24 21:49:00 -04006653 * @phba: Pointer to HBA context object.
6654 *
6655 * This function cleans up all iocb, buffers, mailbox commands
6656 * while shutting down the HBA. This function is called with no
6657 * lock held and always returns 1.
6658 * This function does the following to cleanup driver resources:
6659 * - Free discovery resources for each virtual port
6660 * - Cleanup any pending fabric iocbs
6661 * - Iterate through the iocb txq and free each entry
6662 * in the list.
6663 * - Free up any buffer posted to the HBA
6664 * - Free mailbox commands in the mailbox queue.
6665 **/
James Smart92d7f7b2007-06-17 19:56:38 -05006666int
James Smart2e0fef82007-06-17 19:56:36 -05006667lpfc_sli_hba_down(struct lpfc_hba *phba)
dea31012005-04-17 16:05:31 -05006668{
James Smart2534ba72007-04-25 09:52:20 -04006669 LIST_HEAD(completions);
James Smart2e0fef82007-06-17 19:56:36 -05006670 struct lpfc_sli *psli = &phba->sli;
dea31012005-04-17 16:05:31 -05006671 struct lpfc_sli_ring *pring;
James Smart0ff10d42008-01-11 01:52:36 -05006672 struct lpfc_dmabuf *buf_ptr;
dea31012005-04-17 16:05:31 -05006673 unsigned long flags = 0;
James Smart04c68492009-05-22 14:52:52 -04006674 int i;
6675
6676 /* Shutdown the mailbox command sub-system */
6677 lpfc_sli_mbox_sys_shutdown(phba);
dea31012005-04-17 16:05:31 -05006678
dea31012005-04-17 16:05:31 -05006679 lpfc_hba_down_prep(phba);
6680
James Smart92d7f7b2007-06-17 19:56:38 -05006681 lpfc_fabric_abort_hba(phba);
6682
James Smart2e0fef82007-06-17 19:56:36 -05006683 spin_lock_irqsave(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006684 for (i = 0; i < psli->num_rings; i++) {
6685 pring = &psli->ring[i];
James Smart5e9d9b82008-06-14 22:52:53 -04006686 /* Only slow rings */
6687 if (pring->ringno == LPFC_ELS_RING) {
James Smart858c9f62007-06-17 19:56:39 -05006688 pring->flag |= LPFC_DEFERRED_RING_EVENT;
James Smart5e9d9b82008-06-14 22:52:53 -04006689 /* Set the lpfc data pending flag */
6690 set_bit(LPFC_DATA_READY, &phba->data_flags);
6691 }
dea31012005-04-17 16:05:31 -05006692
6693 /*
6694 * Error everything on the txq since these iocbs have not been
6695 * given to the FW yet.
6696 */
James Smart2534ba72007-04-25 09:52:20 -04006697 list_splice_init(&pring->txq, &completions);
dea31012005-04-17 16:05:31 -05006698 pring->txq_cnt = 0;
6699
dea31012005-04-17 16:05:31 -05006700 }
James Smart2e0fef82007-06-17 19:56:36 -05006701 spin_unlock_irqrestore(&phba->hbalock, flags);
dea31012005-04-17 16:05:31 -05006702
James Smarta257bf92009-04-06 18:48:10 -04006703 /* Cancel all the IOCBs from the completions list */
6704 lpfc_sli_cancel_iocbs(phba, &completions, IOSTAT_LOCAL_REJECT,
6705 IOERR_SLI_DOWN);
James Smart2534ba72007-04-25 09:52:20 -04006706
James Smart0ff10d42008-01-11 01:52:36 -05006707 spin_lock_irqsave(&phba->hbalock, flags);
6708 list_splice_init(&phba->elsbuf, &completions);
6709 phba->elsbuf_cnt = 0;
6710 phba->elsbuf_prev_cnt = 0;
6711 spin_unlock_irqrestore(&phba->hbalock, flags);
6712
6713 while (!list_empty(&completions)) {
6714 list_remove_head(&completions, buf_ptr,
6715 struct lpfc_dmabuf, list);
6716 lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
6717 kfree(buf_ptr);
6718 }
6719
dea31012005-04-17 16:05:31 -05006720 /* Return any active mbox cmds */
6721 del_timer_sync(&psli->mbox_tmo);
James Smart92d7f7b2007-06-17 19:56:38 -05006722
James Smartda0436e2009-05-22 14:51:39 -04006723 spin_lock_irqsave(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006724 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
James Smartda0436e2009-05-22 14:51:39 -04006725 spin_unlock_irqrestore(&phba->pport->work_port_lock, flags);
James Smart92d7f7b2007-06-17 19:56:38 -05006726
James Smartda0436e2009-05-22 14:51:39 -04006727 return 1;
6728}
James Smart92d7f7b2007-06-17 19:56:38 -05006729
James Smartda0436e2009-05-22 14:51:39 -04006730/**
6731 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6732 * @phba: Pointer to HBA context object.
6733 *
6734 * This function cleans up all queues, iocb, buffers, mailbox commands while
6735 * shutting down the SLI4 HBA FCoE function. This function is called with no
6736 * lock held and always returns 1.
6737 *
6738 * This function does the following to cleanup driver FCoE function resources:
6739 * - Free discovery resources for each virtual port
6740 * - Cleanup any pending fabric iocbs
6741 * - Iterate through the iocb txq and free each entry in the list.
6742 * - Free up any buffer posted to the HBA.
6743 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6744 * - Free mailbox commands in the mailbox queue.
6745 **/
6746int
6747lpfc_sli4_hba_down(struct lpfc_hba *phba)
6748{
6749 /* Stop the SLI4 device port */
6750 lpfc_stop_port(phba);
6751
6752 /* Tear down the queues in the HBA */
6753 lpfc_sli4_queue_unset(phba);
6754
6755 /* unregister default FCFI from the HBA */
6756 lpfc_sli4_fcfi_unreg(phba, phba->fcf.fcfi);
6757
dea31012005-04-17 16:05:31 -05006758 return 1;
6759}
6760
James Smarte59058c2008-08-24 21:49:00 -04006761/**
James Smart3621a712009-04-06 18:47:14 -04006762 * lpfc_sli_pcimem_bcopy - SLI memory copy function
James Smarte59058c2008-08-24 21:49:00 -04006763 * @srcp: Source memory pointer.
6764 * @destp: Destination memory pointer.
6765 * @cnt: Number of words required to be copied.
6766 *
6767 * This function is used for copying data between driver memory
6768 * and the SLI memory. This function also changes the endianness
6769 * of each word if native endianness is different from SLI
6770 * endianness. This function can be called with or without
6771 * lock.
6772 **/
dea31012005-04-17 16:05:31 -05006773void
6774lpfc_sli_pcimem_bcopy(void *srcp, void *destp, uint32_t cnt)
6775{
6776 uint32_t *src = srcp;
6777 uint32_t *dest = destp;
6778 uint32_t ldata;
6779 int i;
6780
6781 for (i = 0; i < (int)cnt; i += sizeof (uint32_t)) {
6782 ldata = *src;
6783 ldata = le32_to_cpu(ldata);
6784 *dest = ldata;
6785 src++;
6786 dest++;
6787 }
6788}
6789
James Smarte59058c2008-08-24 21:49:00 -04006790
6791/**
James Smarta0c87cb2009-07-19 10:01:10 -04006792 * lpfc_sli_bemem_bcopy - SLI memory copy function
6793 * @srcp: Source memory pointer.
6794 * @destp: Destination memory pointer.
6795 * @cnt: Number of words required to be copied.
6796 *
6797 * This function is used for copying data between a data structure
6798 * with big endian representation to local endianness.
6799 * This function can be called with or without lock.
6800 **/
6801void
6802lpfc_sli_bemem_bcopy(void *srcp, void *destp, uint32_t cnt)
6803{
6804 uint32_t *src = srcp;
6805 uint32_t *dest = destp;
6806 uint32_t ldata;
6807 int i;
6808
6809 for (i = 0; i < (int)cnt; i += sizeof(uint32_t)) {
6810 ldata = *src;
6811 ldata = be32_to_cpu(ldata);
6812 *dest = ldata;
6813 src++;
6814 dest++;
6815 }
6816}
6817
6818/**
James Smart3621a712009-04-06 18:47:14 -04006819 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
James Smarte59058c2008-08-24 21:49:00 -04006820 * @phba: Pointer to HBA context object.
6821 * @pring: Pointer to driver SLI ring object.
6822 * @mp: Pointer to driver buffer object.
6823 *
6824 * This function is called with no lock held.
6825 * It always return zero after adding the buffer to the postbufq
6826 * buffer list.
6827 **/
dea31012005-04-17 16:05:31 -05006828int
James Smart2e0fef82007-06-17 19:56:36 -05006829lpfc_sli_ringpostbuf_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6830 struct lpfc_dmabuf *mp)
dea31012005-04-17 16:05:31 -05006831{
6832 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
6833 later */
James Smart2e0fef82007-06-17 19:56:36 -05006834 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006835 list_add_tail(&mp->list, &pring->postbufq);
dea31012005-04-17 16:05:31 -05006836 pring->postbufq_cnt++;
James Smart2e0fef82007-06-17 19:56:36 -05006837 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006838 return 0;
6839}
6840
James Smarte59058c2008-08-24 21:49:00 -04006841/**
James Smart3621a712009-04-06 18:47:14 -04006842 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
James Smarte59058c2008-08-24 21:49:00 -04006843 * @phba: Pointer to HBA context object.
6844 *
6845 * When HBQ is enabled, buffers are searched based on tags. This function
6846 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
6847 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
6848 * does not conflict with tags of buffer posted for unsolicited events.
6849 * The function returns the allocated tag. The function is called with
6850 * no locks held.
6851 **/
James Smart76bb24e2007-10-27 13:38:00 -04006852uint32_t
6853lpfc_sli_get_buffer_tag(struct lpfc_hba *phba)
6854{
6855 spin_lock_irq(&phba->hbalock);
6856 phba->buffer_tag_count++;
6857 /*
6858 * Always set the QUE_BUFTAG_BIT to distiguish between
6859 * a tag assigned by HBQ.
6860 */
6861 phba->buffer_tag_count |= QUE_BUFTAG_BIT;
6862 spin_unlock_irq(&phba->hbalock);
6863 return phba->buffer_tag_count;
6864}
6865
James Smarte59058c2008-08-24 21:49:00 -04006866/**
James Smart3621a712009-04-06 18:47:14 -04006867 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
James Smarte59058c2008-08-24 21:49:00 -04006868 * @phba: Pointer to HBA context object.
6869 * @pring: Pointer to driver SLI ring object.
6870 * @tag: Buffer tag.
6871 *
6872 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
6873 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
6874 * iocb is posted to the response ring with the tag of the buffer.
6875 * This function searches the pring->postbufq list using the tag
6876 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
6877 * iocb. If the buffer is found then lpfc_dmabuf object of the
6878 * buffer is returned to the caller else NULL is returned.
6879 * This function is called with no lock held.
6880 **/
James Smart76bb24e2007-10-27 13:38:00 -04006881struct lpfc_dmabuf *
6882lpfc_sli_ring_taggedbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6883 uint32_t tag)
6884{
6885 struct lpfc_dmabuf *mp, *next_mp;
6886 struct list_head *slp = &pring->postbufq;
6887
6888 /* Search postbufq, from the begining, looking for a match on tag */
6889 spin_lock_irq(&phba->hbalock);
6890 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6891 if (mp->buffer_tag == tag) {
6892 list_del_init(&mp->list);
6893 pring->postbufq_cnt--;
6894 spin_unlock_irq(&phba->hbalock);
6895 return mp;
6896 }
6897 }
6898
6899 spin_unlock_irq(&phba->hbalock);
6900 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smartd7c255b2008-08-24 21:50:00 -04006901 "0402 Cannot find virtual addr for buffer tag on "
James Smart76bb24e2007-10-27 13:38:00 -04006902 "ring %d Data x%lx x%p x%p x%x\n",
6903 pring->ringno, (unsigned long) tag,
6904 slp->next, slp->prev, pring->postbufq_cnt);
6905
6906 return NULL;
6907}
dea31012005-04-17 16:05:31 -05006908
James Smarte59058c2008-08-24 21:49:00 -04006909/**
James Smart3621a712009-04-06 18:47:14 -04006910 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
James Smarte59058c2008-08-24 21:49:00 -04006911 * @phba: Pointer to HBA context object.
6912 * @pring: Pointer to driver SLI ring object.
6913 * @phys: DMA address of the buffer.
6914 *
6915 * This function searches the buffer list using the dma_address
6916 * of unsolicited event to find the driver's lpfc_dmabuf object
6917 * corresponding to the dma_address. The function returns the
6918 * lpfc_dmabuf object if a buffer is found else it returns NULL.
6919 * This function is called by the ct and els unsolicited event
6920 * handlers to get the buffer associated with the unsolicited
6921 * event.
6922 *
6923 * This function is called with no lock held.
6924 **/
dea31012005-04-17 16:05:31 -05006925struct lpfc_dmabuf *
6926lpfc_sli_ringpostbuf_get(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
6927 dma_addr_t phys)
6928{
6929 struct lpfc_dmabuf *mp, *next_mp;
6930 struct list_head *slp = &pring->postbufq;
6931
6932 /* Search postbufq, from the begining, looking for a match on phys */
James Smart2e0fef82007-06-17 19:56:36 -05006933 spin_lock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006934 list_for_each_entry_safe(mp, next_mp, &pring->postbufq, list) {
6935 if (mp->phys == phys) {
6936 list_del_init(&mp->list);
6937 pring->postbufq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05006938 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006939 return mp;
6940 }
6941 }
6942
James Smart2e0fef82007-06-17 19:56:36 -05006943 spin_unlock_irq(&phba->hbalock);
dea31012005-04-17 16:05:31 -05006944 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
James Smarte8b62012007-08-02 11:10:09 -04006945 "0410 Cannot find virtual addr for mapped buf on "
dea31012005-04-17 16:05:31 -05006946 "ring %d Data x%llx x%p x%p x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04006947 pring->ringno, (unsigned long long)phys,
dea31012005-04-17 16:05:31 -05006948 slp->next, slp->prev, pring->postbufq_cnt);
6949 return NULL;
6950}
6951
James Smarte59058c2008-08-24 21:49:00 -04006952/**
James Smart3621a712009-04-06 18:47:14 -04006953 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
James Smarte59058c2008-08-24 21:49:00 -04006954 * @phba: Pointer to HBA context object.
6955 * @cmdiocb: Pointer to driver command iocb object.
6956 * @rspiocb: Pointer to driver response iocb object.
6957 *
6958 * This function is the completion handler for the abort iocbs for
6959 * ELS commands. This function is called from the ELS ring event
6960 * handler with no lock held. This function frees memory resources
6961 * associated with the abort iocb.
6962 **/
dea31012005-04-17 16:05:31 -05006963static void
James Smart2e0fef82007-06-17 19:56:36 -05006964lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
6965 struct lpfc_iocbq *rspiocb)
dea31012005-04-17 16:05:31 -05006966{
James Smart2e0fef82007-06-17 19:56:36 -05006967 IOCB_t *irsp = &rspiocb->iocb;
James Smart2680eea2007-04-25 09:52:55 -04006968 uint16_t abort_iotag, abort_context;
James Smart92d7f7b2007-06-17 19:56:38 -05006969 struct lpfc_iocbq *abort_iocb;
James Smart2680eea2007-04-25 09:52:55 -04006970 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
6971
6972 abort_iocb = NULL;
James Smart2680eea2007-04-25 09:52:55 -04006973
6974 if (irsp->ulpStatus) {
6975 abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
6976 abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
6977
James Smart2e0fef82007-06-17 19:56:36 -05006978 spin_lock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04006979 if (abort_iotag != 0 && abort_iotag <= phba->sli.last_iotag)
6980 abort_iocb = phba->sli.iocbq_lookup[abort_iotag];
6981
James Smart92d7f7b2007-06-17 19:56:38 -05006982 lpfc_printf_log(phba, KERN_INFO, LOG_ELS | LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04006983 "0327 Cannot abort els iocb %p "
James Smart92d7f7b2007-06-17 19:56:38 -05006984 "with tag %x context %x, abort status %x, "
6985 "abort code %x\n",
James Smarte8b62012007-08-02 11:10:09 -04006986 abort_iocb, abort_iotag, abort_context,
6987 irsp->ulpStatus, irsp->un.ulpWord[4]);
James Smart2680eea2007-04-25 09:52:55 -04006988
6989 /*
James Smart58da1ff2008-04-07 10:15:56 -04006990 * If the iocb is not found in Firmware queue the iocb
6991 * might have completed already. Do not free it again.
6992 */
James Smart9b379602008-04-07 10:16:00 -04006993 if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
James Smart58da1ff2008-04-07 10:15:56 -04006994 spin_unlock_irq(&phba->hbalock);
6995 lpfc_sli_release_iocbq(phba, cmdiocb);
6996 return;
6997 }
6998 /*
James Smart2680eea2007-04-25 09:52:55 -04006999 * make sure we have the right iocbq before taking it
7000 * off the txcmplq and try to call completion routine.
7001 */
James Smart2e0fef82007-06-17 19:56:36 -05007002 if (!abort_iocb ||
7003 abort_iocb->iocb.ulpContext != abort_context ||
7004 (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
7005 spin_unlock_irq(&phba->hbalock);
7006 else {
James Smart92d7f7b2007-06-17 19:56:38 -05007007 list_del_init(&abort_iocb->list);
James Smart2680eea2007-04-25 09:52:55 -04007008 pring->txcmplq_cnt--;
James Smart2e0fef82007-06-17 19:56:36 -05007009 spin_unlock_irq(&phba->hbalock);
James Smart2680eea2007-04-25 09:52:55 -04007010
James Smart0ff10d42008-01-11 01:52:36 -05007011 /* Firmware could still be in progress of DMAing
7012 * payload, so don't free data buffer till after
7013 * a hbeat.
7014 */
7015 abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
7016
James Smart92d7f7b2007-06-17 19:56:38 -05007017 abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
7018 abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
7019 abort_iocb->iocb.un.ulpWord[4] = IOERR_SLI_ABORTED;
7020 (abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
James Smart2680eea2007-04-25 09:52:55 -04007021 }
7022 }
7023
James Bottomley604a3e32005-10-29 10:28:33 -05007024 lpfc_sli_release_iocbq(phba, cmdiocb);
dea31012005-04-17 16:05:31 -05007025 return;
7026}
7027
James Smarte59058c2008-08-24 21:49:00 -04007028/**
James Smart3621a712009-04-06 18:47:14 -04007029 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
James Smarte59058c2008-08-24 21:49:00 -04007030 * @phba: Pointer to HBA context object.
7031 * @cmdiocb: Pointer to driver command iocb object.
7032 * @rspiocb: Pointer to driver response iocb object.
7033 *
7034 * The function is called from SLI ring event handler with no
7035 * lock held. This function is the completion handler for ELS commands
7036 * which are aborted. The function frees memory resources used for
7037 * the aborted ELS commands.
7038 **/
James Smart92d7f7b2007-06-17 19:56:38 -05007039static void
7040lpfc_ignore_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7041 struct lpfc_iocbq *rspiocb)
7042{
7043 IOCB_t *irsp = &rspiocb->iocb;
7044
7045 /* ELS cmd tag <ulpIoTag> completes */
7046 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
James Smartd7c255b2008-08-24 21:50:00 -04007047 "0139 Ignoring ELS cmd tag x%x completion Data: "
James Smart92d7f7b2007-06-17 19:56:38 -05007048 "x%x x%x x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007049 irsp->ulpIoTag, irsp->ulpStatus,
James Smart92d7f7b2007-06-17 19:56:38 -05007050 irsp->un.ulpWord[4], irsp->ulpTimeout);
James Smart858c9f62007-06-17 19:56:39 -05007051 if (cmdiocb->iocb.ulpCommand == CMD_GEN_REQUEST64_CR)
7052 lpfc_ct_free_iocb(phba, cmdiocb);
7053 else
7054 lpfc_els_free_iocb(phba, cmdiocb);
James Smart92d7f7b2007-06-17 19:56:38 -05007055 return;
7056}
7057
James Smarte59058c2008-08-24 21:49:00 -04007058/**
James Smart3621a712009-04-06 18:47:14 -04007059 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
James Smarte59058c2008-08-24 21:49:00 -04007060 * @phba: Pointer to HBA context object.
7061 * @pring: Pointer to driver SLI ring object.
7062 * @cmdiocb: Pointer to driver command iocb object.
7063 *
7064 * This function issues an abort iocb for the provided command
7065 * iocb. This function is called with hbalock held.
7066 * The function returns 0 when it fails due to memory allocation
7067 * failure or when the command iocb is an abort request.
7068 **/
dea31012005-04-17 16:05:31 -05007069int
James Smart2e0fef82007-06-17 19:56:36 -05007070lpfc_sli_issue_abort_iotag(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
7071 struct lpfc_iocbq *cmdiocb)
dea31012005-04-17 16:05:31 -05007072{
James Smart2e0fef82007-06-17 19:56:36 -05007073 struct lpfc_vport *vport = cmdiocb->vport;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007074 struct lpfc_iocbq *abtsiocbp;
dea31012005-04-17 16:05:31 -05007075 IOCB_t *icmd = NULL;
7076 IOCB_t *iabt = NULL;
James Smart07951072007-04-25 09:51:38 -04007077 int retval = IOCB_ERROR;
7078
James Smart92d7f7b2007-06-17 19:56:38 -05007079 /*
7080 * There are certain command types we don't want to abort. And we
7081 * don't want to abort commands that are already in the process of
7082 * being aborted.
James Smart07951072007-04-25 09:51:38 -04007083 */
7084 icmd = &cmdiocb->iocb;
James Smart2e0fef82007-06-17 19:56:36 -05007085 if (icmd->ulpCommand == CMD_ABORT_XRI_CN ||
James Smart92d7f7b2007-06-17 19:56:38 -05007086 icmd->ulpCommand == CMD_CLOSE_XRI_CN ||
7087 (cmdiocb->iocb_flag & LPFC_DRIVER_ABORTED) != 0)
James Smart07951072007-04-25 09:51:38 -04007088 return 0;
7089
James Smart858c9f62007-06-17 19:56:39 -05007090 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7091 * callback so that nothing happens when it finishes.
James Smart07951072007-04-25 09:51:38 -04007092 */
James Smart858c9f62007-06-17 19:56:39 -05007093 if ((vport->load_flag & FC_UNLOADING) &&
7094 (pring->ringno == LPFC_ELS_RING)) {
James Smart92d7f7b2007-06-17 19:56:38 -05007095 if (cmdiocb->iocb_flag & LPFC_IO_FABRIC)
7096 cmdiocb->fabric_iocb_cmpl = lpfc_ignore_els_cmpl;
7097 else
7098 cmdiocb->iocb_cmpl = lpfc_ignore_els_cmpl;
James Smart07951072007-04-25 09:51:38 -04007099 goto abort_iotag_exit;
James Smart92d7f7b2007-06-17 19:56:38 -05007100 }
dea31012005-04-17 16:05:31 -05007101
7102 /* issue ABTS for this IOCB based on iotag */
James Smart92d7f7b2007-06-17 19:56:38 -05007103 abtsiocbp = __lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007104 if (abtsiocbp == NULL)
7105 return 0;
dea31012005-04-17 16:05:31 -05007106
James Smart07951072007-04-25 09:51:38 -04007107 /* This signals the response to set the correct status
7108 * before calling the completion handler.
7109 */
7110 cmdiocb->iocb_flag |= LPFC_DRIVER_ABORTED;
7111
dea31012005-04-17 16:05:31 -05007112 iabt = &abtsiocbp->iocb;
James Smart07951072007-04-25 09:51:38 -04007113 iabt->un.acxri.abortType = ABORT_TYPE_ABTS;
7114 iabt->un.acxri.abortContextTag = icmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04007115 if (phba->sli_rev == LPFC_SLI_REV4)
7116 iabt->un.acxri.abortIoTag = cmdiocb->sli4_xritag;
7117 else
7118 iabt->un.acxri.abortIoTag = icmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007119 iabt->ulpLe = 1;
James Smart07951072007-04-25 09:51:38 -04007120 iabt->ulpClass = icmd->ulpClass;
dea31012005-04-17 16:05:31 -05007121
James Smart2e0fef82007-06-17 19:56:36 -05007122 if (phba->link_state >= LPFC_LINK_UP)
James Smart07951072007-04-25 09:51:38 -04007123 iabt->ulpCommand = CMD_ABORT_XRI_CN;
7124 else
7125 iabt->ulpCommand = CMD_CLOSE_XRI_CN;
7126
7127 abtsiocbp->iocb_cmpl = lpfc_sli_abort_els_cmpl;
James Smart5b8bd0c2007-04-25 09:52:49 -04007128
James Smarte8b62012007-08-02 11:10:09 -04007129 lpfc_printf_vlog(vport, KERN_INFO, LOG_SLI,
7130 "0339 Abort xri x%x, original iotag x%x, "
7131 "abort cmd iotag x%x\n",
7132 iabt->un.acxri.abortContextTag,
7133 iabt->un.acxri.abortIoTag, abtsiocbp->iotag);
James Smartda0436e2009-05-22 14:51:39 -04007134 retval = __lpfc_sli_issue_iocb(phba, pring->ringno, abtsiocbp, 0);
James Smart07951072007-04-25 09:51:38 -04007135
James Smartd7c255b2008-08-24 21:50:00 -04007136 if (retval)
7137 __lpfc_sli_release_iocbq(phba, abtsiocbp);
James Smart07951072007-04-25 09:51:38 -04007138abort_iotag_exit:
James Smart2e0fef82007-06-17 19:56:36 -05007139 /*
7140 * Caller to this routine should check for IOCB_ERROR
7141 * and handle it properly. This routine no longer removes
7142 * iocb off txcmplq and call compl in case of IOCB_ERROR.
James Smart07951072007-04-25 09:51:38 -04007143 */
James Smart2e0fef82007-06-17 19:56:36 -05007144 return retval;
dea31012005-04-17 16:05:31 -05007145}
7146
James Smarte59058c2008-08-24 21:49:00 -04007147/**
James Smart3621a712009-04-06 18:47:14 -04007148 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
James Smarte59058c2008-08-24 21:49:00 -04007149 * @iocbq: Pointer to driver iocb object.
7150 * @vport: Pointer to driver virtual port object.
7151 * @tgt_id: SCSI ID of the target.
7152 * @lun_id: LUN ID of the scsi device.
7153 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7154 *
James Smart3621a712009-04-06 18:47:14 -04007155 * This function acts as an iocb filter for functions which abort or count
James Smarte59058c2008-08-24 21:49:00 -04007156 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7157 * 0 if the filtering criteria is met for the given iocb and will return
7158 * 1 if the filtering criteria is not met.
7159 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7160 * given iocb is for the SCSI device specified by vport, tgt_id and
7161 * lun_id parameter.
7162 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7163 * given iocb is for the SCSI target specified by vport and tgt_id
7164 * parameters.
7165 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7166 * given iocb is for the SCSI host associated with the given vport.
7167 * This function is called with no locks held.
7168 **/
dea31012005-04-17 16:05:31 -05007169static int
James Smart51ef4c22007-08-02 11:10:31 -04007170lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, struct lpfc_vport *vport,
7171 uint16_t tgt_id, uint64_t lun_id,
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007172 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007173{
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007174 struct lpfc_scsi_buf *lpfc_cmd;
dea31012005-04-17 16:05:31 -05007175 int rc = 1;
7176
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007177 if (!(iocbq->iocb_flag & LPFC_IO_FCP))
7178 return rc;
7179
James Smart51ef4c22007-08-02 11:10:31 -04007180 if (iocbq->vport != vport)
7181 return rc;
7182
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007183 lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007184
James Smart495a7142008-06-14 22:52:59 -04007185 if (lpfc_cmd->pCmd == NULL)
dea31012005-04-17 16:05:31 -05007186 return rc;
7187
7188 switch (ctx_cmd) {
7189 case LPFC_CTX_LUN:
James Smart495a7142008-06-14 22:52:59 -04007190 if ((lpfc_cmd->rdata->pnode) &&
7191 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id) &&
7192 (scsilun_to_int(&lpfc_cmd->fcp_cmnd->fcp_lun) == lun_id))
dea31012005-04-17 16:05:31 -05007193 rc = 0;
7194 break;
7195 case LPFC_CTX_TGT:
James Smart495a7142008-06-14 22:52:59 -04007196 if ((lpfc_cmd->rdata->pnode) &&
7197 (lpfc_cmd->rdata->pnode->nlp_sid == tgt_id))
dea31012005-04-17 16:05:31 -05007198 rc = 0;
7199 break;
dea31012005-04-17 16:05:31 -05007200 case LPFC_CTX_HOST:
7201 rc = 0;
7202 break;
7203 default:
7204 printk(KERN_ERR "%s: Unknown context cmd type, value %d\n",
Harvey Harrisoncadbd4a2008-07-03 23:47:27 -07007205 __func__, ctx_cmd);
dea31012005-04-17 16:05:31 -05007206 break;
7207 }
7208
7209 return rc;
7210}
7211
James Smarte59058c2008-08-24 21:49:00 -04007212/**
James Smart3621a712009-04-06 18:47:14 -04007213 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
James Smarte59058c2008-08-24 21:49:00 -04007214 * @vport: Pointer to virtual port.
7215 * @tgt_id: SCSI ID of the target.
7216 * @lun_id: LUN ID of the scsi device.
7217 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7218 *
7219 * This function returns number of FCP commands pending for the vport.
7220 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7221 * commands pending on the vport associated with SCSI device specified
7222 * by tgt_id and lun_id parameters.
7223 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7224 * commands pending on the vport associated with SCSI target specified
7225 * by tgt_id parameter.
7226 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7227 * commands pending on the vport.
7228 * This function returns the number of iocbs which satisfy the filter.
7229 * This function is called without any lock held.
7230 **/
dea31012005-04-17 16:05:31 -05007231int
James Smart51ef4c22007-08-02 11:10:31 -04007232lpfc_sli_sum_iocb(struct lpfc_vport *vport, uint16_t tgt_id, uint64_t lun_id,
7233 lpfc_ctx_cmd ctx_cmd)
dea31012005-04-17 16:05:31 -05007234{
James Smart51ef4c22007-08-02 11:10:31 -04007235 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007236 struct lpfc_iocbq *iocbq;
7237 int sum, i;
dea31012005-04-17 16:05:31 -05007238
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007239 for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
7240 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007241
James Smart51ef4c22007-08-02 11:10:31 -04007242 if (lpfc_sli_validate_fcp_iocb (iocbq, vport, tgt_id, lun_id,
7243 ctx_cmd) == 0)
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007244 sum++;
dea31012005-04-17 16:05:31 -05007245 }
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007246
dea31012005-04-17 16:05:31 -05007247 return sum;
7248}
7249
James Smarte59058c2008-08-24 21:49:00 -04007250/**
James Smart3621a712009-04-06 18:47:14 -04007251 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
James Smarte59058c2008-08-24 21:49:00 -04007252 * @phba: Pointer to HBA context object
7253 * @cmdiocb: Pointer to command iocb object.
7254 * @rspiocb: Pointer to response iocb object.
7255 *
7256 * This function is called when an aborted FCP iocb completes. This
7257 * function is called by the ring event handler with no lock held.
7258 * This function frees the iocb.
7259 **/
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007260void
James Smart2e0fef82007-06-17 19:56:36 -05007261lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
7262 struct lpfc_iocbq *rspiocb)
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007263{
James Bottomley604a3e32005-10-29 10:28:33 -05007264 lpfc_sli_release_iocbq(phba, cmdiocb);
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007265 return;
7266}
7267
James Smarte59058c2008-08-24 21:49:00 -04007268/**
James Smart3621a712009-04-06 18:47:14 -04007269 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
James Smarte59058c2008-08-24 21:49:00 -04007270 * @vport: Pointer to virtual port.
7271 * @pring: Pointer to driver SLI ring object.
7272 * @tgt_id: SCSI ID of the target.
7273 * @lun_id: LUN ID of the scsi device.
7274 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7275 *
7276 * This function sends an abort command for every SCSI command
7277 * associated with the given virtual port pending on the ring
7278 * filtered by lpfc_sli_validate_fcp_iocb function.
7279 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7280 * FCP iocbs associated with lun specified by tgt_id and lun_id
7281 * parameters
7282 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7283 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7284 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7285 * FCP iocbs associated with virtual port.
7286 * This function returns number of iocbs it failed to abort.
7287 * This function is called with no locks held.
7288 **/
dea31012005-04-17 16:05:31 -05007289int
James Smart51ef4c22007-08-02 11:10:31 -04007290lpfc_sli_abort_iocb(struct lpfc_vport *vport, struct lpfc_sli_ring *pring,
7291 uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd abort_cmd)
dea31012005-04-17 16:05:31 -05007292{
James Smart51ef4c22007-08-02 11:10:31 -04007293 struct lpfc_hba *phba = vport->phba;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007294 struct lpfc_iocbq *iocbq;
7295 struct lpfc_iocbq *abtsiocb;
dea31012005-04-17 16:05:31 -05007296 IOCB_t *cmd = NULL;
dea31012005-04-17 16:05:31 -05007297 int errcnt = 0, ret_val = 0;
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007298 int i;
dea31012005-04-17 16:05:31 -05007299
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007300 for (i = 1; i <= phba->sli.last_iotag; i++) {
7301 iocbq = phba->sli.iocbq_lookup[i];
dea31012005-04-17 16:05:31 -05007302
James Smart51ef4c22007-08-02 11:10:31 -04007303 if (lpfc_sli_validate_fcp_iocb(iocbq, vport, tgt_id, lun_id,
James Smart2e0fef82007-06-17 19:56:36 -05007304 abort_cmd) != 0)
dea31012005-04-17 16:05:31 -05007305 continue;
7306
7307 /* issue ABTS for this IOCB based on iotag */
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007308 abtsiocb = lpfc_sli_get_iocbq(phba);
dea31012005-04-17 16:05:31 -05007309 if (abtsiocb == NULL) {
7310 errcnt++;
7311 continue;
7312 }
dea31012005-04-17 16:05:31 -05007313
James.Smart@Emulex.Com0bd4ca22005-10-28 20:30:02 -04007314 cmd = &iocbq->iocb;
dea31012005-04-17 16:05:31 -05007315 abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
7316 abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
James Smartda0436e2009-05-22 14:51:39 -04007317 if (phba->sli_rev == LPFC_SLI_REV4)
7318 abtsiocb->iocb.un.acxri.abortIoTag = iocbq->sli4_xritag;
7319 else
7320 abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
dea31012005-04-17 16:05:31 -05007321 abtsiocb->iocb.ulpLe = 1;
7322 abtsiocb->iocb.ulpClass = cmd->ulpClass;
James Smart2e0fef82007-06-17 19:56:36 -05007323 abtsiocb->vport = phba->pport;
dea31012005-04-17 16:05:31 -05007324
James Smart2e0fef82007-06-17 19:56:36 -05007325 if (lpfc_is_link_up(phba))
dea31012005-04-17 16:05:31 -05007326 abtsiocb->iocb.ulpCommand = CMD_ABORT_XRI_CN;
7327 else
7328 abtsiocb->iocb.ulpCommand = CMD_CLOSE_XRI_CN;
7329
James.Smart@Emulex.Com5eb95af2005-06-25 10:34:30 -04007330 /* Setup callback routine and issue the command. */
7331 abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
James Smartda0436e2009-05-22 14:51:39 -04007332 ret_val = lpfc_sli_issue_iocb(phba, pring->ringno,
7333 abtsiocb, 0);
dea31012005-04-17 16:05:31 -05007334 if (ret_val == IOCB_ERROR) {
James Bottomley604a3e32005-10-29 10:28:33 -05007335 lpfc_sli_release_iocbq(phba, abtsiocb);
dea31012005-04-17 16:05:31 -05007336 errcnt++;
7337 continue;
7338 }
7339 }
7340
7341 return errcnt;
7342}
7343
James Smarte59058c2008-08-24 21:49:00 -04007344/**
James Smart3621a712009-04-06 18:47:14 -04007345 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
James Smarte59058c2008-08-24 21:49:00 -04007346 * @phba: Pointer to HBA context object.
7347 * @cmdiocbq: Pointer to command iocb.
7348 * @rspiocbq: Pointer to response iocb.
7349 *
7350 * This function is the completion handler for iocbs issued using
7351 * lpfc_sli_issue_iocb_wait function. This function is called by the
7352 * ring event handler function without any lock held. This function
7353 * can be called from both worker thread context and interrupt
7354 * context. This function also can be called from other thread which
7355 * cleans up the SLI layer objects.
7356 * This function copy the contents of the response iocb to the
7357 * response iocb memory object provided by the caller of
7358 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7359 * sleeps for the iocb completion.
7360 **/
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007361static void
7362lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
7363 struct lpfc_iocbq *cmdiocbq,
7364 struct lpfc_iocbq *rspiocbq)
dea31012005-04-17 16:05:31 -05007365{
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007366 wait_queue_head_t *pdone_q;
7367 unsigned long iflags;
dea31012005-04-17 16:05:31 -05007368
James Smart2e0fef82007-06-17 19:56:36 -05007369 spin_lock_irqsave(&phba->hbalock, iflags);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007370 cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
7371 if (cmdiocbq->context2 && rspiocbq)
7372 memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
7373 &rspiocbq->iocb, sizeof(IOCB_t));
7374
7375 pdone_q = cmdiocbq->context_un.wait_queue;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007376 if (pdone_q)
7377 wake_up(pdone_q);
James Smart858c9f62007-06-17 19:56:39 -05007378 spin_unlock_irqrestore(&phba->hbalock, iflags);
dea31012005-04-17 16:05:31 -05007379 return;
7380}
7381
James Smarte59058c2008-08-24 21:49:00 -04007382/**
James Smartd11e31d2009-06-10 17:23:06 -04007383 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7384 * @phba: Pointer to HBA context object..
7385 * @piocbq: Pointer to command iocb.
7386 * @flag: Flag to test.
7387 *
7388 * This routine grabs the hbalock and then test the iocb_flag to
7389 * see if the passed in flag is set.
7390 * Returns:
7391 * 1 if flag is set.
7392 * 0 if flag is not set.
7393 **/
7394static int
7395lpfc_chk_iocb_flg(struct lpfc_hba *phba,
7396 struct lpfc_iocbq *piocbq, uint32_t flag)
7397{
7398 unsigned long iflags;
7399 int ret;
7400
7401 spin_lock_irqsave(&phba->hbalock, iflags);
7402 ret = piocbq->iocb_flag & flag;
7403 spin_unlock_irqrestore(&phba->hbalock, iflags);
7404 return ret;
7405
7406}
7407
7408/**
James Smart3621a712009-04-06 18:47:14 -04007409 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
James Smarte59058c2008-08-24 21:49:00 -04007410 * @phba: Pointer to HBA context object..
7411 * @pring: Pointer to sli ring.
7412 * @piocb: Pointer to command iocb.
7413 * @prspiocbq: Pointer to response iocb.
7414 * @timeout: Timeout in number of seconds.
7415 *
7416 * This function issues the iocb to firmware and waits for the
7417 * iocb to complete. If the iocb command is not
7418 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7419 * Caller should not free the iocb resources if this function
7420 * returns IOCB_TIMEDOUT.
7421 * The function waits for the iocb completion using an
7422 * non-interruptible wait.
7423 * This function will sleep while waiting for iocb completion.
7424 * So, this function should not be called from any context which
7425 * does not allow sleeping. Due to the same reason, this function
7426 * cannot be called with interrupt disabled.
7427 * This function assumes that the iocb completions occur while
7428 * this function sleep. So, this function cannot be called from
7429 * the thread which process iocb completion for this ring.
7430 * This function clears the iocb_flag of the iocb object before
7431 * issuing the iocb and the iocb completion handler sets this
7432 * flag and wakes this thread when the iocb completes.
7433 * The contents of the response iocb will be copied to prspiocbq
7434 * by the completion handler when the command completes.
7435 * This function returns IOCB_SUCCESS when success.
7436 * This function is called with no lock held.
7437 **/
dea31012005-04-17 16:05:31 -05007438int
James Smart2e0fef82007-06-17 19:56:36 -05007439lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
James Smartda0436e2009-05-22 14:51:39 -04007440 uint32_t ring_number,
James Smart2e0fef82007-06-17 19:56:36 -05007441 struct lpfc_iocbq *piocb,
7442 struct lpfc_iocbq *prspiocbq,
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007443 uint32_t timeout)
dea31012005-04-17 16:05:31 -05007444{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007445 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007446 long timeleft, timeout_req = 0;
7447 int retval = IOCB_SUCCESS;
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007448 uint32_t creg_val;
dea31012005-04-17 16:05:31 -05007449
7450 /*
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007451 * If the caller has provided a response iocbq buffer, then context2
7452 * is NULL or its an error.
dea31012005-04-17 16:05:31 -05007453 */
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007454 if (prspiocbq) {
7455 if (piocb->context2)
7456 return IOCB_ERROR;
7457 piocb->context2 = prspiocbq;
dea31012005-04-17 16:05:31 -05007458 }
7459
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007460 piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
7461 piocb->context_un.wait_queue = &done_q;
7462 piocb->iocb_flag &= ~LPFC_IO_WAKE;
dea31012005-04-17 16:05:31 -05007463
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007464 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7465 creg_val = readl(phba->HCregaddr);
7466 creg_val |= (HC_R0INT_ENA << LPFC_FCP_RING);
7467 writel(creg_val, phba->HCregaddr);
7468 readl(phba->HCregaddr); /* flush */
7469 }
7470
James Smartda0436e2009-05-22 14:51:39 -04007471 retval = lpfc_sli_issue_iocb(phba, ring_number, piocb, 0);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007472 if (retval == IOCB_SUCCESS) {
7473 timeout_req = timeout * HZ;
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007474 timeleft = wait_event_timeout(done_q,
James Smartd11e31d2009-06-10 17:23:06 -04007475 lpfc_chk_iocb_flg(phba, piocb, LPFC_IO_WAKE),
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007476 timeout_req);
dea31012005-04-17 16:05:31 -05007477
James Smart7054a602007-04-25 09:52:34 -04007478 if (piocb->iocb_flag & LPFC_IO_WAKE) {
7479 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007480 "0331 IOCB wake signaled\n");
James Smart7054a602007-04-25 09:52:34 -04007481 } else if (timeleft == 0) {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007482 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007483 "0338 IOCB wait timeout error - no "
7484 "wake response Data x%x\n", timeout);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007485 retval = IOCB_TIMEDOUT;
James Smart7054a602007-04-25 09:52:34 -04007486 } else {
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007487 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007488 "0330 IOCB wake NOT set, "
7489 "Data x%x x%lx\n",
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007490 timeout, (timeleft / jiffies));
7491 retval = IOCB_TIMEDOUT;
dea31012005-04-17 16:05:31 -05007492 }
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007493 } else {
7494 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04007495 "0332 IOCB wait issue failed, Data x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04007496 retval);
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007497 retval = IOCB_ERROR;
dea31012005-04-17 16:05:31 -05007498 }
7499
James.Smart@Emulex.Com875fbdf2005-11-29 16:32:13 -05007500 if (phba->cfg_poll & DISABLE_FCP_RING_INT) {
7501 creg_val = readl(phba->HCregaddr);
7502 creg_val &= ~(HC_R0INT_ENA << LPFC_FCP_RING);
7503 writel(creg_val, phba->HCregaddr);
7504 readl(phba->HCregaddr); /* flush */
7505 }
7506
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007507 if (prspiocbq)
7508 piocb->context2 = NULL;
7509
7510 piocb->context_un.wait_queue = NULL;
7511 piocb->iocb_cmpl = NULL;
dea31012005-04-17 16:05:31 -05007512 return retval;
7513}
James.Smart@Emulex.Com68876922005-10-28 20:29:47 -04007514
James Smarte59058c2008-08-24 21:49:00 -04007515/**
James Smart3621a712009-04-06 18:47:14 -04007516 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
James Smarte59058c2008-08-24 21:49:00 -04007517 * @phba: Pointer to HBA context object.
7518 * @pmboxq: Pointer to driver mailbox object.
7519 * @timeout: Timeout in number of seconds.
7520 *
7521 * This function issues the mailbox to firmware and waits for the
7522 * mailbox command to complete. If the mailbox command is not
7523 * completed within timeout seconds, it returns MBX_TIMEOUT.
7524 * The function waits for the mailbox completion using an
7525 * interruptible wait. If the thread is woken up due to a
7526 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7527 * should not free the mailbox resources, if this function returns
7528 * MBX_TIMEOUT.
7529 * This function will sleep while waiting for mailbox completion.
7530 * So, this function should not be called from any context which
7531 * does not allow sleeping. Due to the same reason, this function
7532 * cannot be called with interrupt disabled.
7533 * This function assumes that the mailbox completion occurs while
7534 * this function sleep. So, this function cannot be called from
7535 * the worker thread which processes mailbox completion.
7536 * This function is called in the context of HBA management
7537 * applications.
7538 * This function returns MBX_SUCCESS when successful.
7539 * This function is called with no lock held.
7540 **/
dea31012005-04-17 16:05:31 -05007541int
James Smart2e0fef82007-06-17 19:56:36 -05007542lpfc_sli_issue_mbox_wait(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq,
dea31012005-04-17 16:05:31 -05007543 uint32_t timeout)
7544{
Peter Zijlstra7259f0d2006-10-29 22:46:36 -08007545 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q);
dea31012005-04-17 16:05:31 -05007546 int retval;
James Smart858c9f62007-06-17 19:56:39 -05007547 unsigned long flag;
dea31012005-04-17 16:05:31 -05007548
7549 /* The caller must leave context1 empty. */
James Smart98c9ea52007-10-27 13:37:33 -04007550 if (pmboxq->context1)
James Smart2e0fef82007-06-17 19:56:36 -05007551 return MBX_NOT_FINISHED;
dea31012005-04-17 16:05:31 -05007552
James Smart495a7142008-06-14 22:52:59 -04007553 pmboxq->mbox_flag &= ~LPFC_MBX_WAKE;
dea31012005-04-17 16:05:31 -05007554 /* setup wake call as IOCB callback */
7555 pmboxq->mbox_cmpl = lpfc_sli_wake_mbox_wait;
7556 /* setup context field to pass wait_queue pointer to wake function */
7557 pmboxq->context1 = &done_q;
7558
dea31012005-04-17 16:05:31 -05007559 /* now issue the command */
7560 retval = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
7561
7562 if (retval == MBX_BUSY || retval == MBX_SUCCESS) {
James Smart7054a602007-04-25 09:52:34 -04007563 wait_event_interruptible_timeout(done_q,
7564 pmboxq->mbox_flag & LPFC_MBX_WAKE,
7565 timeout * HZ);
7566
James Smart858c9f62007-06-17 19:56:39 -05007567 spin_lock_irqsave(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007568 pmboxq->context1 = NULL;
James Smart7054a602007-04-25 09:52:34 -04007569 /*
7570 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7571 * else do not free the resources.
7572 */
7573 if (pmboxq->mbox_flag & LPFC_MBX_WAKE)
dea31012005-04-17 16:05:31 -05007574 retval = MBX_SUCCESS;
James Smart858c9f62007-06-17 19:56:39 -05007575 else {
James Smart7054a602007-04-25 09:52:34 -04007576 retval = MBX_TIMEOUT;
James Smart858c9f62007-06-17 19:56:39 -05007577 pmboxq->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
7578 }
7579 spin_unlock_irqrestore(&phba->hbalock, flag);
dea31012005-04-17 16:05:31 -05007580 }
7581
dea31012005-04-17 16:05:31 -05007582 return retval;
7583}
7584
James Smarte59058c2008-08-24 21:49:00 -04007585/**
James Smart3772a992009-05-22 14:50:54 -04007586 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
James Smarte59058c2008-08-24 21:49:00 -04007587 * @phba: Pointer to HBA context.
7588 *
James Smart3772a992009-05-22 14:50:54 -04007589 * This function is called to shutdown the driver's mailbox sub-system.
7590 * It first marks the mailbox sub-system is in a block state to prevent
7591 * the asynchronous mailbox command from issued off the pending mailbox
7592 * command queue. If the mailbox command sub-system shutdown is due to
7593 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7594 * the mailbox sub-system flush routine to forcefully bring down the
7595 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7596 * as with offline or HBA function reset), this routine will wait for the
7597 * outstanding mailbox command to complete before invoking the mailbox
7598 * sub-system flush routine to gracefully bring down mailbox sub-system.
James Smarte59058c2008-08-24 21:49:00 -04007599 **/
James Smart3772a992009-05-22 14:50:54 -04007600void
7601lpfc_sli_mbox_sys_shutdown(struct lpfc_hba *phba)
James Smartb4c02652006-07-06 15:50:43 -04007602{
James Smart3772a992009-05-22 14:50:54 -04007603 struct lpfc_sli *psli = &phba->sli;
7604 uint8_t actcmd = MBX_HEARTBEAT;
7605 unsigned long timeout;
7606
7607 spin_lock_irq(&phba->hbalock);
7608 psli->sli_flag |= LPFC_SLI_ASYNC_MBX_BLK;
7609 spin_unlock_irq(&phba->hbalock);
7610
7611 if (psli->sli_flag & LPFC_SLI_ACTIVE) {
7612 spin_lock_irq(&phba->hbalock);
7613 if (phba->sli.mbox_active)
7614 actcmd = phba->sli.mbox_active->u.mb.mbxCommand;
7615 spin_unlock_irq(&phba->hbalock);
7616 /* Determine how long we might wait for the active mailbox
7617 * command to be gracefully completed by firmware.
7618 */
7619 timeout = msecs_to_jiffies(lpfc_mbox_tmo_val(phba, actcmd) *
7620 1000) + jiffies;
7621 while (phba->sli.mbox_active) {
7622 /* Check active mailbox complete status every 2ms */
7623 msleep(2);
7624 if (time_after(jiffies, timeout))
7625 /* Timeout, let the mailbox flush routine to
7626 * forcefully release active mailbox command
7627 */
7628 break;
7629 }
7630 }
7631 lpfc_sli_mbox_sys_flush(phba);
7632}
7633
7634/**
7635 * lpfc_sli_eratt_read - read sli-3 error attention events
7636 * @phba: Pointer to HBA context.
7637 *
7638 * This function is called to read the SLI3 device error attention registers
7639 * for possible error attention events. The caller must hold the hostlock
7640 * with spin_lock_irq().
7641 *
7642 * This fucntion returns 1 when there is Error Attention in the Host Attention
7643 * Register and returns 0 otherwise.
7644 **/
7645static int
7646lpfc_sli_eratt_read(struct lpfc_hba *phba)
7647{
James Smarted957682007-06-17 19:56:37 -05007648 uint32_t ha_copy;
James Smartb4c02652006-07-06 15:50:43 -04007649
James Smart3772a992009-05-22 14:50:54 -04007650 /* Read chip Host Attention (HA) register */
7651 ha_copy = readl(phba->HAregaddr);
7652 if (ha_copy & HA_ERATT) {
7653 /* Read host status register to retrieve error event */
7654 lpfc_sli_read_hs(phba);
James Smartb4c02652006-07-06 15:50:43 -04007655
James Smart3772a992009-05-22 14:50:54 -04007656 /* Check if there is a deferred error condition is active */
7657 if ((HS_FFER1 & phba->work_hs) &&
7658 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7659 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
James Smart3772a992009-05-22 14:50:54 -04007660 phba->hba_flag |= DEFER_ERATT;
James Smart3772a992009-05-22 14:50:54 -04007661 /* Clear all interrupt enable conditions */
7662 writel(0, phba->HCregaddr);
7663 readl(phba->HCregaddr);
7664 }
7665
7666 /* Set the driver HA work bitmap */
James Smart3772a992009-05-22 14:50:54 -04007667 phba->work_ha |= HA_ERATT;
7668 /* Indicate polling handles this ERATT */
7669 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04007670 return 1;
James Smartb4c02652006-07-06 15:50:43 -04007671 }
James Smart3772a992009-05-22 14:50:54 -04007672 return 0;
James Smartb4c02652006-07-06 15:50:43 -04007673}
7674
James Smarte59058c2008-08-24 21:49:00 -04007675/**
James Smartda0436e2009-05-22 14:51:39 -04007676 * lpfc_sli4_eratt_read - read sli-4 error attention events
7677 * @phba: Pointer to HBA context.
7678 *
7679 * This function is called to read the SLI4 device error attention registers
7680 * for possible error attention events. The caller must hold the hostlock
7681 * with spin_lock_irq().
7682 *
7683 * This fucntion returns 1 when there is Error Attention in the Host Attention
7684 * Register and returns 0 otherwise.
7685 **/
7686static int
7687lpfc_sli4_eratt_read(struct lpfc_hba *phba)
7688{
7689 uint32_t uerr_sta_hi, uerr_sta_lo;
7690 uint32_t onlnreg0, onlnreg1;
7691
7692 /* For now, use the SLI4 device internal unrecoverable error
7693 * registers for error attention. This can be changed later.
7694 */
7695 onlnreg0 = readl(phba->sli4_hba.ONLINE0regaddr);
7696 onlnreg1 = readl(phba->sli4_hba.ONLINE1regaddr);
7697 if ((onlnreg0 != LPFC_ONLINE_NERR) || (onlnreg1 != LPFC_ONLINE_NERR)) {
7698 uerr_sta_lo = readl(phba->sli4_hba.UERRLOregaddr);
7699 uerr_sta_hi = readl(phba->sli4_hba.UERRHIregaddr);
7700 if (uerr_sta_lo || uerr_sta_hi) {
7701 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7702 "1423 HBA Unrecoverable error: "
7703 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7704 "online0_reg=0x%x, online1_reg=0x%x\n",
7705 uerr_sta_lo, uerr_sta_hi,
7706 onlnreg0, onlnreg1);
James Smartda0436e2009-05-22 14:51:39 -04007707 phba->work_status[0] = uerr_sta_lo;
7708 phba->work_status[1] = uerr_sta_hi;
James Smartda0436e2009-05-22 14:51:39 -04007709 /* Set the driver HA work bitmap */
7710 phba->work_ha |= HA_ERATT;
7711 /* Indicate polling handles this ERATT */
7712 phba->hba_flag |= HBA_ERATT_HANDLED;
James Smartda0436e2009-05-22 14:51:39 -04007713 return 1;
7714 }
7715 }
7716 return 0;
7717}
7718
7719/**
James Smart3621a712009-04-06 18:47:14 -04007720 * lpfc_sli_check_eratt - check error attention events
James Smart93996272008-08-24 21:50:30 -04007721 * @phba: Pointer to HBA context.
7722 *
James Smart3772a992009-05-22 14:50:54 -04007723 * This function is called from timer soft interrupt context to check HBA's
James Smart93996272008-08-24 21:50:30 -04007724 * error attention register bit for error attention events.
7725 *
7726 * This fucntion returns 1 when there is Error Attention in the Host Attention
7727 * Register and returns 0 otherwise.
7728 **/
7729int
7730lpfc_sli_check_eratt(struct lpfc_hba *phba)
7731{
7732 uint32_t ha_copy;
7733
7734 /* If somebody is waiting to handle an eratt, don't process it
7735 * here. The brdkill function will do this.
7736 */
7737 if (phba->link_flag & LS_IGNORE_ERATT)
7738 return 0;
7739
7740 /* Check if interrupt handler handles this ERATT */
7741 spin_lock_irq(&phba->hbalock);
7742 if (phba->hba_flag & HBA_ERATT_HANDLED) {
7743 /* Interrupt handler has handled ERATT */
7744 spin_unlock_irq(&phba->hbalock);
7745 return 0;
7746 }
7747
James Smarta257bf92009-04-06 18:48:10 -04007748 /*
7749 * If there is deferred error attention, do not check for error
7750 * attention
7751 */
7752 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
7753 spin_unlock_irq(&phba->hbalock);
7754 return 0;
7755 }
7756
James Smart3772a992009-05-22 14:50:54 -04007757 /* If PCI channel is offline, don't process it */
7758 if (unlikely(pci_channel_offline(phba->pcidev))) {
James Smart93996272008-08-24 21:50:30 -04007759 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04007760 return 0;
7761 }
7762
7763 switch (phba->sli_rev) {
7764 case LPFC_SLI_REV2:
7765 case LPFC_SLI_REV3:
7766 /* Read chip Host Attention (HA) register */
7767 ha_copy = lpfc_sli_eratt_read(phba);
7768 break;
James Smartda0436e2009-05-22 14:51:39 -04007769 case LPFC_SLI_REV4:
7770 /* Read devcie Uncoverable Error (UERR) registers */
7771 ha_copy = lpfc_sli4_eratt_read(phba);
7772 break;
James Smart3772a992009-05-22 14:50:54 -04007773 default:
7774 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
7775 "0299 Invalid SLI revision (%d)\n",
7776 phba->sli_rev);
7777 ha_copy = 0;
7778 break;
James Smart93996272008-08-24 21:50:30 -04007779 }
7780 spin_unlock_irq(&phba->hbalock);
James Smart3772a992009-05-22 14:50:54 -04007781
7782 return ha_copy;
7783}
7784
7785/**
7786 * lpfc_intr_state_check - Check device state for interrupt handling
7787 * @phba: Pointer to HBA context.
7788 *
7789 * This inline routine checks whether a device or its PCI slot is in a state
7790 * that the interrupt should be handled.
7791 *
7792 * This function returns 0 if the device or the PCI slot is in a state that
7793 * interrupt should be handled, otherwise -EIO.
7794 */
7795static inline int
7796lpfc_intr_state_check(struct lpfc_hba *phba)
7797{
7798 /* If the pci channel is offline, ignore all the interrupts */
7799 if (unlikely(pci_channel_offline(phba->pcidev)))
7800 return -EIO;
7801
7802 /* Update device level interrupt statistics */
7803 phba->sli.slistat.sli_intr++;
7804
7805 /* Ignore all interrupts during initialization. */
7806 if (unlikely(phba->link_state < LPFC_LINK_DOWN))
7807 return -EIO;
7808
James Smart93996272008-08-24 21:50:30 -04007809 return 0;
7810}
7811
7812/**
James Smart3772a992009-05-22 14:50:54 -04007813 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
James Smarte59058c2008-08-24 21:49:00 -04007814 * @irq: Interrupt number.
7815 * @dev_id: The device context pointer.
7816 *
James Smart93996272008-08-24 21:50:30 -04007817 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04007818 * service routine when device with SLI-3 interface spec is enabled with
7819 * MSI-X multi-message interrupt mode and there are slow-path events in
7820 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
7821 * interrupt mode, this function is called as part of the device-level
7822 * interrupt handler. When the PCI slot is in error recovery or the HBA
7823 * is undergoing initialization, the interrupt handler will not process
7824 * the interrupt. The link attention and ELS ring attention events are
7825 * handled by the worker thread. The interrupt handler signals the worker
7826 * thread and returns for these events. This function is called without
7827 * any lock held. It gets the hbalock to access and update SLI data
James Smart93996272008-08-24 21:50:30 -04007828 * structures.
7829 *
7830 * This function returns IRQ_HANDLED when interrupt is handled else it
7831 * returns IRQ_NONE.
James Smarte59058c2008-08-24 21:49:00 -04007832 **/
dea31012005-04-17 16:05:31 -05007833irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04007834lpfc_sli_sp_intr_handler(int irq, void *dev_id)
dea31012005-04-17 16:05:31 -05007835{
James Smart2e0fef82007-06-17 19:56:36 -05007836 struct lpfc_hba *phba;
dea31012005-04-17 16:05:31 -05007837 uint32_t ha_copy;
7838 uint32_t work_ha_copy;
7839 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05007840 unsigned long iflag;
dea31012005-04-17 16:05:31 -05007841 uint32_t control;
7842
James Smart92d7f7b2007-06-17 19:56:38 -05007843 MAILBOX_t *mbox, *pmbox;
James Smart858c9f62007-06-17 19:56:39 -05007844 struct lpfc_vport *vport;
7845 struct lpfc_nodelist *ndlp;
7846 struct lpfc_dmabuf *mp;
James Smart92d7f7b2007-06-17 19:56:38 -05007847 LPFC_MBOXQ_t *pmb;
7848 int rc;
7849
dea31012005-04-17 16:05:31 -05007850 /*
7851 * Get the driver's phba structure from the dev_id and
7852 * assume the HBA is not interrupting.
7853 */
James Smart93996272008-08-24 21:50:30 -04007854 phba = (struct lpfc_hba *)dev_id;
dea31012005-04-17 16:05:31 -05007855
7856 if (unlikely(!phba))
7857 return IRQ_NONE;
7858
dea31012005-04-17 16:05:31 -05007859 /*
James Smart93996272008-08-24 21:50:30 -04007860 * Stuff needs to be attented to when this function is invoked as an
7861 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05007862 */
James Smart93996272008-08-24 21:50:30 -04007863 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04007864 /* Check device state for handling interrupt */
7865 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04007866 return IRQ_NONE;
7867 /* Need to read HA REG for slow-path events */
James Smart5b75da22008-12-04 22:39:35 -05007868 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart34b02dc2008-08-24 21:49:55 -04007869 ha_copy = readl(phba->HAregaddr);
James Smart93996272008-08-24 21:50:30 -04007870 /* If somebody is waiting to handle an eratt don't process it
7871 * here. The brdkill function will do this.
7872 */
7873 if (phba->link_flag & LS_IGNORE_ERATT)
7874 ha_copy &= ~HA_ERATT;
7875 /* Check the need for handling ERATT in interrupt handler */
7876 if (ha_copy & HA_ERATT) {
7877 if (phba->hba_flag & HBA_ERATT_HANDLED)
7878 /* ERATT polling has handled ERATT */
7879 ha_copy &= ~HA_ERATT;
7880 else
7881 /* Indicate interrupt handler handles ERATT */
7882 phba->hba_flag |= HBA_ERATT_HANDLED;
7883 }
James Smarta257bf92009-04-06 18:48:10 -04007884
7885 /*
7886 * If there is deferred error attention, do not check for any
7887 * interrupt.
7888 */
7889 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04007890 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04007891 return IRQ_NONE;
7892 }
7893
James Smart93996272008-08-24 21:50:30 -04007894 /* Clear up only attention source related to slow-path */
7895 writel((ha_copy & (HA_MBATT | HA_R2_CLR_MSK)),
7896 phba->HAregaddr);
7897 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05007898 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04007899 } else
7900 ha_copy = phba->ha_copy;
dea31012005-04-17 16:05:31 -05007901
dea31012005-04-17 16:05:31 -05007902 work_ha_copy = ha_copy & phba->work_ha_mask;
7903
James Smart93996272008-08-24 21:50:30 -04007904 if (work_ha_copy) {
dea31012005-04-17 16:05:31 -05007905 if (work_ha_copy & HA_LATT) {
7906 if (phba->sli.sli_flag & LPFC_PROCESS_LA) {
7907 /*
7908 * Turn off Link Attention interrupts
7909 * until CLEAR_LA done
7910 */
James Smart5b75da22008-12-04 22:39:35 -05007911 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05007912 phba->sli.sli_flag &= ~LPFC_PROCESS_LA;
7913 control = readl(phba->HCregaddr);
7914 control &= ~HC_LAINT_ENA;
7915 writel(control, phba->HCregaddr);
7916 readl(phba->HCregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05007917 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05007918 }
7919 else
7920 work_ha_copy &= ~HA_LATT;
7921 }
7922
James Smart93996272008-08-24 21:50:30 -04007923 if (work_ha_copy & ~(HA_ERATT | HA_MBATT | HA_LATT)) {
James Smart858c9f62007-06-17 19:56:39 -05007924 /*
7925 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
7926 * the only slow ring.
7927 */
7928 status = (work_ha_copy &
7929 (HA_RXMASK << (4*LPFC_ELS_RING)));
7930 status >>= (4*LPFC_ELS_RING);
7931 if (status & HA_RXMASK) {
James Smart5b75da22008-12-04 22:39:35 -05007932 spin_lock_irqsave(&phba->hbalock, iflag);
James Smart858c9f62007-06-17 19:56:39 -05007933 control = readl(phba->HCregaddr);
James Smarta58cbd52007-08-02 11:09:43 -04007934
7935 lpfc_debugfs_slow_ring_trc(phba,
7936 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
7937 control, status,
7938 (uint32_t)phba->sli.slistat.sli_intr);
7939
James Smart858c9f62007-06-17 19:56:39 -05007940 if (control & (HC_R0INT_ENA << LPFC_ELS_RING)) {
James Smarta58cbd52007-08-02 11:09:43 -04007941 lpfc_debugfs_slow_ring_trc(phba,
7942 "ISR Disable ring:"
7943 "pwork:x%x hawork:x%x wait:x%x",
7944 phba->work_ha, work_ha_copy,
7945 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04007946 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04007947
James Smart858c9f62007-06-17 19:56:39 -05007948 control &=
7949 ~(HC_R0INT_ENA << LPFC_ELS_RING);
dea31012005-04-17 16:05:31 -05007950 writel(control, phba->HCregaddr);
7951 readl(phba->HCregaddr); /* flush */
dea31012005-04-17 16:05:31 -05007952 }
James Smarta58cbd52007-08-02 11:09:43 -04007953 else {
7954 lpfc_debugfs_slow_ring_trc(phba,
7955 "ISR slow ring: pwork:"
7956 "x%x hawork:x%x wait:x%x",
7957 phba->work_ha, work_ha_copy,
7958 (uint32_t)((unsigned long)
James Smart5e9d9b82008-06-14 22:52:53 -04007959 &phba->work_waitq));
James Smarta58cbd52007-08-02 11:09:43 -04007960 }
James Smart5b75da22008-12-04 22:39:35 -05007961 spin_unlock_irqrestore(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05007962 }
7963 }
James Smart5b75da22008-12-04 22:39:35 -05007964 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04007965 if (work_ha_copy & HA_ERATT) {
James Smart93996272008-08-24 21:50:30 -04007966 lpfc_sli_read_hs(phba);
James Smarta257bf92009-04-06 18:48:10 -04007967 /*
7968 * Check if there is a deferred error condition
7969 * is active
7970 */
7971 if ((HS_FFER1 & phba->work_hs) &&
7972 ((HS_FFER2 | HS_FFER3 | HS_FFER4 | HS_FFER5 |
7973 HS_FFER6 | HS_FFER7) & phba->work_hs)) {
7974 phba->hba_flag |= DEFER_ERATT;
7975 /* Clear all interrupt enable conditions */
7976 writel(0, phba->HCregaddr);
7977 readl(phba->HCregaddr);
7978 }
7979 }
7980
James Smart93996272008-08-24 21:50:30 -04007981 if ((work_ha_copy & HA_MBATT) && (phba->sli.mbox_active)) {
James Smart92d7f7b2007-06-17 19:56:38 -05007982 pmb = phba->sli.mbox_active;
James Smart04c68492009-05-22 14:52:52 -04007983 pmbox = &pmb->u.mb;
James Smart34b02dc2008-08-24 21:49:55 -04007984 mbox = phba->mbox;
James Smart858c9f62007-06-17 19:56:39 -05007985 vport = pmb->vport;
James Smart92d7f7b2007-06-17 19:56:38 -05007986
7987 /* First check out the status word */
7988 lpfc_sli_pcimem_bcopy(mbox, pmbox, sizeof(uint32_t));
7989 if (pmbox->mbxOwner != OWN_HOST) {
James Smart5b75da22008-12-04 22:39:35 -05007990 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart92d7f7b2007-06-17 19:56:38 -05007991 /*
7992 * Stray Mailbox Interrupt, mbxCommand <cmd>
7993 * mbxStatus <status>
7994 */
James Smart09372822008-01-11 01:52:54 -05007995 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
James Smart92d7f7b2007-06-17 19:56:38 -05007996 LOG_SLI,
James Smarte8b62012007-08-02 11:10:09 -04007997 "(%d):0304 Stray Mailbox "
James Smart92d7f7b2007-06-17 19:56:38 -05007998 "Interrupt mbxCommand x%x "
7999 "mbxStatus x%x\n",
James Smarte8b62012007-08-02 11:10:09 -04008000 (vport ? vport->vpi : 0),
James Smart92d7f7b2007-06-17 19:56:38 -05008001 pmbox->mbxCommand,
8002 pmbox->mbxStatus);
James Smart09372822008-01-11 01:52:54 -05008003 /* clear mailbox attention bit */
8004 work_ha_copy &= ~HA_MBATT;
8005 } else {
James Smart97eab632008-04-07 10:16:05 -04008006 phba->sli.mbox_active = NULL;
James Smart5b75da22008-12-04 22:39:35 -05008007 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart09372822008-01-11 01:52:54 -05008008 phba->last_completion_time = jiffies;
8009 del_timer(&phba->sli.mbox_tmo);
James Smart09372822008-01-11 01:52:54 -05008010 if (pmb->mbox_cmpl) {
8011 lpfc_sli_pcimem_bcopy(mbox, pmbox,
8012 MAILBOX_CMD_SIZE);
James Smart858c9f62007-06-17 19:56:39 -05008013 }
James Smart09372822008-01-11 01:52:54 -05008014 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8015 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8016
8017 lpfc_debugfs_disc_trc(vport,
8018 LPFC_DISC_TRC_MBOX_VPORT,
8019 "MBOX dflt rpi: : "
8020 "status:x%x rpi:x%x",
8021 (uint32_t)pmbox->mbxStatus,
8022 pmbox->un.varWords[0], 0);
8023
8024 if (!pmbox->mbxStatus) {
8025 mp = (struct lpfc_dmabuf *)
8026 (pmb->context1);
8027 ndlp = (struct lpfc_nodelist *)
8028 pmb->context2;
8029
8030 /* Reg_LOGIN of dflt RPI was
8031 * successful. new lets get
8032 * rid of the RPI using the
8033 * same mbox buffer.
8034 */
8035 lpfc_unreg_login(phba,
8036 vport->vpi,
8037 pmbox->un.varWords[0],
8038 pmb);
8039 pmb->mbox_cmpl =
8040 lpfc_mbx_cmpl_dflt_rpi;
8041 pmb->context1 = mp;
8042 pmb->context2 = ndlp;
8043 pmb->vport = vport;
James Smart58da1ff2008-04-07 10:15:56 -04008044 rc = lpfc_sli_issue_mbox(phba,
8045 pmb,
8046 MBX_NOWAIT);
8047 if (rc != MBX_BUSY)
8048 lpfc_printf_log(phba,
8049 KERN_ERR,
8050 LOG_MBOX | LOG_SLI,
James Smartd7c255b2008-08-24 21:50:00 -04008051 "0350 rc should have"
James Smart58da1ff2008-04-07 10:15:56 -04008052 "been MBX_BUSY");
James Smart3772a992009-05-22 14:50:54 -04008053 if (rc != MBX_NOT_FINISHED)
8054 goto send_current_mbox;
James Smart09372822008-01-11 01:52:54 -05008055 }
8056 }
James Smart5b75da22008-12-04 22:39:35 -05008057 spin_lock_irqsave(
8058 &phba->pport->work_port_lock,
8059 iflag);
James Smart09372822008-01-11 01:52:54 -05008060 phba->pport->work_port_events &=
8061 ~WORKER_MBOX_TMO;
James Smart5b75da22008-12-04 22:39:35 -05008062 spin_unlock_irqrestore(
8063 &phba->pport->work_port_lock,
8064 iflag);
James Smart09372822008-01-11 01:52:54 -05008065 lpfc_mbox_cmpl_put(phba, pmb);
James Smart858c9f62007-06-17 19:56:39 -05008066 }
James Smart97eab632008-04-07 10:16:05 -04008067 } else
James Smart5b75da22008-12-04 22:39:35 -05008068 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008069
James Smart92d7f7b2007-06-17 19:56:38 -05008070 if ((work_ha_copy & HA_MBATT) &&
8071 (phba->sli.mbox_active == NULL)) {
James Smart858c9f62007-06-17 19:56:39 -05008072send_current_mbox:
James Smart92d7f7b2007-06-17 19:56:38 -05008073 /* Process next mailbox command if there is one */
James Smart58da1ff2008-04-07 10:15:56 -04008074 do {
8075 rc = lpfc_sli_issue_mbox(phba, NULL,
8076 MBX_NOWAIT);
8077 } while (rc == MBX_NOT_FINISHED);
8078 if (rc != MBX_SUCCESS)
8079 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8080 LOG_SLI, "0349 rc should be "
8081 "MBX_SUCCESS");
James Smart92d7f7b2007-06-17 19:56:38 -05008082 }
8083
James Smart5b75da22008-12-04 22:39:35 -05008084 spin_lock_irqsave(&phba->hbalock, iflag);
dea31012005-04-17 16:05:31 -05008085 phba->work_ha |= work_ha_copy;
James Smart5b75da22008-12-04 22:39:35 -05008086 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart5e9d9b82008-06-14 22:52:53 -04008087 lpfc_worker_wake_up(phba);
dea31012005-04-17 16:05:31 -05008088 }
James Smart93996272008-08-24 21:50:30 -04008089 return IRQ_HANDLED;
dea31012005-04-17 16:05:31 -05008090
James Smart3772a992009-05-22 14:50:54 -04008091} /* lpfc_sli_sp_intr_handler */
James Smart93996272008-08-24 21:50:30 -04008092
8093/**
James Smart3772a992009-05-22 14:50:54 -04008094 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
James Smart93996272008-08-24 21:50:30 -04008095 * @irq: Interrupt number.
8096 * @dev_id: The device context pointer.
8097 *
8098 * This function is directly called from the PCI layer as an interrupt
James Smart3772a992009-05-22 14:50:54 -04008099 * service routine when device with SLI-3 interface spec is enabled with
8100 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8101 * ring event in the HBA. However, when the device is enabled with either
8102 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8103 * device-level interrupt handler. When the PCI slot is in error recovery
8104 * or the HBA is undergoing initialization, the interrupt handler will not
8105 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8106 * the intrrupt context. This function is called without any lock held.
8107 * It gets the hbalock to access and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008108 *
8109 * This function returns IRQ_HANDLED when interrupt is handled else it
8110 * returns IRQ_NONE.
8111 **/
8112irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008113lpfc_sli_fp_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008114{
8115 struct lpfc_hba *phba;
8116 uint32_t ha_copy;
8117 unsigned long status;
James Smart5b75da22008-12-04 22:39:35 -05008118 unsigned long iflag;
James Smart93996272008-08-24 21:50:30 -04008119
8120 /* Get the driver's phba structure from the dev_id and
8121 * assume the HBA is not interrupting.
8122 */
8123 phba = (struct lpfc_hba *) dev_id;
8124
8125 if (unlikely(!phba))
8126 return IRQ_NONE;
dea31012005-04-17 16:05:31 -05008127
8128 /*
James Smart93996272008-08-24 21:50:30 -04008129 * Stuff needs to be attented to when this function is invoked as an
8130 * individual interrupt handler in MSI-X multi-message interrupt mode
dea31012005-04-17 16:05:31 -05008131 */
James Smart93996272008-08-24 21:50:30 -04008132 if (phba->intr_type == MSIX) {
James Smart3772a992009-05-22 14:50:54 -04008133 /* Check device state for handling interrupt */
8134 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008135 return IRQ_NONE;
8136 /* Need to read HA REG for FCP ring and other ring events */
8137 ha_copy = readl(phba->HAregaddr);
8138 /* Clear up only attention source related to fast-path */
James Smart5b75da22008-12-04 22:39:35 -05008139 spin_lock_irqsave(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008140 /*
8141 * If there is deferred error attention, do not check for
8142 * any interrupt.
8143 */
8144 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
James Smart3772a992009-05-22 14:50:54 -04008145 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smarta257bf92009-04-06 18:48:10 -04008146 return IRQ_NONE;
8147 }
James Smart93996272008-08-24 21:50:30 -04008148 writel((ha_copy & (HA_R0_CLR_MSK | HA_R1_CLR_MSK)),
8149 phba->HAregaddr);
8150 readl(phba->HAregaddr); /* flush */
James Smart5b75da22008-12-04 22:39:35 -05008151 spin_unlock_irqrestore(&phba->hbalock, iflag);
James Smart93996272008-08-24 21:50:30 -04008152 } else
8153 ha_copy = phba->ha_copy;
8154
8155 /*
8156 * Process all events on FCP ring. Take the optimized path for FCP IO.
8157 */
8158 ha_copy &= ~(phba->work_ha_mask);
8159
8160 status = (ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
dea31012005-04-17 16:05:31 -05008161 status >>= (4*LPFC_FCP_RING);
James Smart858c9f62007-06-17 19:56:39 -05008162 if (status & HA_RXMASK)
dea31012005-04-17 16:05:31 -05008163 lpfc_sli_handle_fast_ring_event(phba,
8164 &phba->sli.ring[LPFC_FCP_RING],
8165 status);
James Smarta4bc3372006-12-02 13:34:16 -05008166
8167 if (phba->cfg_multi_ring_support == 2) {
8168 /*
James Smart93996272008-08-24 21:50:30 -04008169 * Process all events on extra ring. Take the optimized path
8170 * for extra ring IO.
James Smarta4bc3372006-12-02 13:34:16 -05008171 */
James Smart93996272008-08-24 21:50:30 -04008172 status = (ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
James Smarta4bc3372006-12-02 13:34:16 -05008173 status >>= (4*LPFC_EXTRA_RING);
James Smart858c9f62007-06-17 19:56:39 -05008174 if (status & HA_RXMASK) {
James Smarta4bc3372006-12-02 13:34:16 -05008175 lpfc_sli_handle_fast_ring_event(phba,
8176 &phba->sli.ring[LPFC_EXTRA_RING],
8177 status);
8178 }
8179 }
dea31012005-04-17 16:05:31 -05008180 return IRQ_HANDLED;
James Smart3772a992009-05-22 14:50:54 -04008181} /* lpfc_sli_fp_intr_handler */
dea31012005-04-17 16:05:31 -05008182
James Smart93996272008-08-24 21:50:30 -04008183/**
James Smart3772a992009-05-22 14:50:54 -04008184 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
James Smart93996272008-08-24 21:50:30 -04008185 * @irq: Interrupt number.
8186 * @dev_id: The device context pointer.
8187 *
James Smart3772a992009-05-22 14:50:54 -04008188 * This function is the HBA device-level interrupt handler to device with
8189 * SLI-3 interface spec, called from the PCI layer when either MSI or
8190 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8191 * requires driver attention. This function invokes the slow-path interrupt
8192 * attention handling function and fast-path interrupt attention handling
8193 * function in turn to process the relevant HBA attention events. This
8194 * function is called without any lock held. It gets the hbalock to access
8195 * and update SLI data structures.
James Smart93996272008-08-24 21:50:30 -04008196 *
8197 * This function returns IRQ_HANDLED when interrupt is handled, else it
8198 * returns IRQ_NONE.
8199 **/
8200irqreturn_t
James Smart3772a992009-05-22 14:50:54 -04008201lpfc_sli_intr_handler(int irq, void *dev_id)
James Smart93996272008-08-24 21:50:30 -04008202{
8203 struct lpfc_hba *phba;
8204 irqreturn_t sp_irq_rc, fp_irq_rc;
8205 unsigned long status1, status2;
8206
8207 /*
8208 * Get the driver's phba structure from the dev_id and
8209 * assume the HBA is not interrupting.
8210 */
8211 phba = (struct lpfc_hba *) dev_id;
8212
8213 if (unlikely(!phba))
8214 return IRQ_NONE;
8215
James Smart3772a992009-05-22 14:50:54 -04008216 /* Check device state for handling interrupt */
8217 if (lpfc_intr_state_check(phba))
James Smart93996272008-08-24 21:50:30 -04008218 return IRQ_NONE;
8219
8220 spin_lock(&phba->hbalock);
8221 phba->ha_copy = readl(phba->HAregaddr);
8222 if (unlikely(!phba->ha_copy)) {
8223 spin_unlock(&phba->hbalock);
8224 return IRQ_NONE;
8225 } else if (phba->ha_copy & HA_ERATT) {
8226 if (phba->hba_flag & HBA_ERATT_HANDLED)
8227 /* ERATT polling has handled ERATT */
8228 phba->ha_copy &= ~HA_ERATT;
8229 else
8230 /* Indicate interrupt handler handles ERATT */
8231 phba->hba_flag |= HBA_ERATT_HANDLED;
8232 }
8233
James Smarta257bf92009-04-06 18:48:10 -04008234 /*
8235 * If there is deferred error attention, do not check for any interrupt.
8236 */
8237 if (unlikely(phba->hba_flag & DEFER_ERATT)) {
8238 spin_unlock_irq(&phba->hbalock);
8239 return IRQ_NONE;
8240 }
8241
James Smart93996272008-08-24 21:50:30 -04008242 /* Clear attention sources except link and error attentions */
8243 writel((phba->ha_copy & ~(HA_LATT | HA_ERATT)), phba->HAregaddr);
8244 readl(phba->HAregaddr); /* flush */
8245 spin_unlock(&phba->hbalock);
8246
8247 /*
8248 * Invokes slow-path host attention interrupt handling as appropriate.
8249 */
8250
8251 /* status of events with mailbox and link attention */
8252 status1 = phba->ha_copy & (HA_MBATT | HA_LATT | HA_ERATT);
8253
8254 /* status of events with ELS ring */
8255 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_ELS_RING)));
8256 status2 >>= (4*LPFC_ELS_RING);
8257
8258 if (status1 || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008259 sp_irq_rc = lpfc_sli_sp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008260 else
8261 sp_irq_rc = IRQ_NONE;
8262
8263 /*
8264 * Invoke fast-path host attention interrupt handling as appropriate.
8265 */
8266
8267 /* status of events with FCP ring */
8268 status1 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_FCP_RING)));
8269 status1 >>= (4*LPFC_FCP_RING);
8270
8271 /* status of events with extra ring */
8272 if (phba->cfg_multi_ring_support == 2) {
8273 status2 = (phba->ha_copy & (HA_RXMASK << (4*LPFC_EXTRA_RING)));
8274 status2 >>= (4*LPFC_EXTRA_RING);
8275 } else
8276 status2 = 0;
8277
8278 if ((status1 & HA_RXMASK) || (status2 & HA_RXMASK))
James Smart3772a992009-05-22 14:50:54 -04008279 fp_irq_rc = lpfc_sli_fp_intr_handler(irq, dev_id);
James Smart93996272008-08-24 21:50:30 -04008280 else
8281 fp_irq_rc = IRQ_NONE;
8282
8283 /* Return device-level interrupt handling status */
8284 return (sp_irq_rc == IRQ_HANDLED) ? sp_irq_rc : fp_irq_rc;
James Smart3772a992009-05-22 14:50:54 -04008285} /* lpfc_sli_intr_handler */
James Smart4f774512009-05-22 14:52:35 -04008286
8287/**
8288 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8289 * @phba: pointer to lpfc hba data structure.
8290 *
8291 * This routine is invoked by the worker thread to process all the pending
8292 * SLI4 FCP abort XRI events.
8293 **/
8294void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba)
8295{
8296 struct lpfc_cq_event *cq_event;
8297
8298 /* First, declare the fcp xri abort event has been handled */
8299 spin_lock_irq(&phba->hbalock);
8300 phba->hba_flag &= ~FCP_XRI_ABORT_EVENT;
8301 spin_unlock_irq(&phba->hbalock);
8302 /* Now, handle all the fcp xri abort events */
8303 while (!list_empty(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue)) {
8304 /* Get the first event from the head of the event queue */
8305 spin_lock_irq(&phba->hbalock);
8306 list_remove_head(&phba->sli4_hba.sp_fcp_xri_aborted_work_queue,
8307 cq_event, struct lpfc_cq_event, list);
8308 spin_unlock_irq(&phba->hbalock);
8309 /* Notify aborted XRI for FCP work queue */
8310 lpfc_sli4_fcp_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8311 /* Free the event processed back to the free pool */
8312 lpfc_sli4_cq_event_release(phba, cq_event);
8313 }
8314}
8315
8316/**
8317 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8318 * @phba: pointer to lpfc hba data structure.
8319 *
8320 * This routine is invoked by the worker thread to process all the pending
8321 * SLI4 els abort xri events.
8322 **/
8323void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *phba)
8324{
8325 struct lpfc_cq_event *cq_event;
8326
8327 /* First, declare the els xri abort event has been handled */
8328 spin_lock_irq(&phba->hbalock);
8329 phba->hba_flag &= ~ELS_XRI_ABORT_EVENT;
8330 spin_unlock_irq(&phba->hbalock);
8331 /* Now, handle all the els xri abort events */
8332 while (!list_empty(&phba->sli4_hba.sp_els_xri_aborted_work_queue)) {
8333 /* Get the first event from the head of the event queue */
8334 spin_lock_irq(&phba->hbalock);
8335 list_remove_head(&phba->sli4_hba.sp_els_xri_aborted_work_queue,
8336 cq_event, struct lpfc_cq_event, list);
8337 spin_unlock_irq(&phba->hbalock);
8338 /* Notify aborted XRI for ELS work queue */
8339 lpfc_sli4_els_xri_aborted(phba, &cq_event->cqe.wcqe_axri);
8340 /* Free the event processed back to the free pool */
8341 lpfc_sli4_cq_event_release(phba, cq_event);
8342 }
8343}
8344
8345static void
8346lpfc_sli4_iocb_param_transfer(struct lpfc_iocbq *pIocbIn,
8347 struct lpfc_iocbq *pIocbOut,
8348 struct lpfc_wcqe_complete *wcqe)
8349{
8350 size_t offset = offsetof(struct lpfc_iocbq, iocb);
8351
8352 memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
8353 sizeof(struct lpfc_iocbq) - offset);
8354 memset(&pIocbIn->sli4_info, 0,
8355 sizeof(struct lpfc_sli4_rspiocb_info));
8356 /* Map WCQE parameters into irspiocb parameters */
8357 pIocbIn->iocb.ulpStatus = bf_get(lpfc_wcqe_c_status, wcqe);
8358 if (pIocbOut->iocb_flag & LPFC_IO_FCP)
8359 if (pIocbIn->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
8360 pIocbIn->iocb.un.fcpi.fcpi_parm =
8361 pIocbOut->iocb.un.fcpi.fcpi_parm -
8362 wcqe->total_data_placed;
8363 else
8364 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8365 else
8366 pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
8367 /* Load in additional WCQE parameters */
8368 pIocbIn->sli4_info.hw_status = bf_get(lpfc_wcqe_c_hw_status, wcqe);
8369 pIocbIn->sli4_info.bfield = 0;
8370 if (bf_get(lpfc_wcqe_c_xb, wcqe))
8371 pIocbIn->sli4_info.bfield |= LPFC_XB;
8372 if (bf_get(lpfc_wcqe_c_pv, wcqe)) {
8373 pIocbIn->sli4_info.bfield |= LPFC_PV;
8374 pIocbIn->sli4_info.priority =
8375 bf_get(lpfc_wcqe_c_priority, wcqe);
8376 }
8377}
8378
8379/**
James Smart04c68492009-05-22 14:52:52 -04008380 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8381 * @phba: Pointer to HBA context object.
8382 * @cqe: Pointer to mailbox completion queue entry.
8383 *
8384 * This routine process a mailbox completion queue entry with asynchrous
8385 * event.
8386 *
8387 * Return: true if work posted to worker thread, otherwise false.
8388 **/
8389static bool
8390lpfc_sli4_sp_handle_async_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8391{
8392 struct lpfc_cq_event *cq_event;
8393 unsigned long iflags;
8394
8395 lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
8396 "0392 Async Event: word0:x%x, word1:x%x, "
8397 "word2:x%x, word3:x%x\n", mcqe->word0,
8398 mcqe->mcqe_tag0, mcqe->mcqe_tag1, mcqe->trailer);
8399
8400 /* Allocate a new internal CQ_EVENT entry */
8401 cq_event = lpfc_sli4_cq_event_alloc(phba);
8402 if (!cq_event) {
8403 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8404 "0394 Failed to allocate CQ_EVENT entry\n");
8405 return false;
8406 }
8407
8408 /* Move the CQE into an asynchronous event entry */
8409 memcpy(&cq_event->cqe, mcqe, sizeof(struct lpfc_mcqe));
8410 spin_lock_irqsave(&phba->hbalock, iflags);
8411 list_add_tail(&cq_event->list, &phba->sli4_hba.sp_asynce_work_queue);
8412 /* Set the async event flag */
8413 phba->hba_flag |= ASYNC_EVENT;
8414 spin_unlock_irqrestore(&phba->hbalock, iflags);
8415
8416 return true;
8417}
8418
8419/**
8420 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8421 * @phba: Pointer to HBA context object.
8422 * @cqe: Pointer to mailbox completion queue entry.
8423 *
8424 * This routine process a mailbox completion queue entry with mailbox
8425 * completion event.
8426 *
8427 * Return: true if work posted to worker thread, otherwise false.
8428 **/
8429static bool
8430lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba *phba, struct lpfc_mcqe *mcqe)
8431{
8432 uint32_t mcqe_status;
8433 MAILBOX_t *mbox, *pmbox;
8434 struct lpfc_mqe *mqe;
8435 struct lpfc_vport *vport;
8436 struct lpfc_nodelist *ndlp;
8437 struct lpfc_dmabuf *mp;
8438 unsigned long iflags;
8439 LPFC_MBOXQ_t *pmb;
8440 bool workposted = false;
8441 int rc;
8442
8443 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8444 if (!bf_get(lpfc_trailer_completed, mcqe))
8445 goto out_no_mqe_complete;
8446
8447 /* Get the reference to the active mbox command */
8448 spin_lock_irqsave(&phba->hbalock, iflags);
8449 pmb = phba->sli.mbox_active;
8450 if (unlikely(!pmb)) {
8451 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
8452 "1832 No pending MBOX command to handle\n");
8453 spin_unlock_irqrestore(&phba->hbalock, iflags);
8454 goto out_no_mqe_complete;
8455 }
8456 spin_unlock_irqrestore(&phba->hbalock, iflags);
8457 mqe = &pmb->u.mqe;
8458 pmbox = (MAILBOX_t *)&pmb->u.mqe;
8459 mbox = phba->mbox;
8460 vport = pmb->vport;
8461
8462 /* Reset heartbeat timer */
8463 phba->last_completion_time = jiffies;
8464 del_timer(&phba->sli.mbox_tmo);
8465
8466 /* Move mbox data to caller's mailbox region, do endian swapping */
8467 if (pmb->mbox_cmpl && mbox)
8468 lpfc_sli_pcimem_bcopy(mbox, mqe, sizeof(struct lpfc_mqe));
8469 /* Set the mailbox status with SLI4 range 0x4000 */
8470 mcqe_status = bf_get(lpfc_mcqe_status, mcqe);
8471 if (mcqe_status != MB_CQE_STATUS_SUCCESS)
8472 bf_set(lpfc_mqe_status, mqe,
8473 (LPFC_MBX_ERROR_RANGE | mcqe_status));
8474
8475 if (pmb->mbox_flag & LPFC_MBX_IMED_UNREG) {
8476 pmb->mbox_flag &= ~LPFC_MBX_IMED_UNREG;
8477 lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_MBOX_VPORT,
8478 "MBOX dflt rpi: status:x%x rpi:x%x",
8479 mcqe_status,
8480 pmbox->un.varWords[0], 0);
8481 if (mcqe_status == MB_CQE_STATUS_SUCCESS) {
8482 mp = (struct lpfc_dmabuf *)(pmb->context1);
8483 ndlp = (struct lpfc_nodelist *)pmb->context2;
8484 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8485 * RID of the PPI using the same mbox buffer.
8486 */
8487 lpfc_unreg_login(phba, vport->vpi,
8488 pmbox->un.varWords[0], pmb);
8489 pmb->mbox_cmpl = lpfc_mbx_cmpl_dflt_rpi;
8490 pmb->context1 = mp;
8491 pmb->context2 = ndlp;
8492 pmb->vport = vport;
8493 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
8494 if (rc != MBX_BUSY)
8495 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX |
8496 LOG_SLI, "0385 rc should "
8497 "have been MBX_BUSY\n");
8498 if (rc != MBX_NOT_FINISHED)
8499 goto send_current_mbox;
8500 }
8501 }
8502 spin_lock_irqsave(&phba->pport->work_port_lock, iflags);
8503 phba->pport->work_port_events &= ~WORKER_MBOX_TMO;
8504 spin_unlock_irqrestore(&phba->pport->work_port_lock, iflags);
8505
8506 /* There is mailbox completion work to do */
8507 spin_lock_irqsave(&phba->hbalock, iflags);
8508 __lpfc_mbox_cmpl_put(phba, pmb);
8509 phba->work_ha |= HA_MBATT;
8510 spin_unlock_irqrestore(&phba->hbalock, iflags);
8511 workposted = true;
8512
8513send_current_mbox:
8514 spin_lock_irqsave(&phba->hbalock, iflags);
8515 /* Release the mailbox command posting token */
8516 phba->sli.sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
8517 /* Setting active mailbox pointer need to be in sync to flag clear */
8518 phba->sli.mbox_active = NULL;
8519 spin_unlock_irqrestore(&phba->hbalock, iflags);
8520 /* Wake up worker thread to post the next pending mailbox command */
8521 lpfc_worker_wake_up(phba);
8522out_no_mqe_complete:
8523 if (bf_get(lpfc_trailer_consumed, mcqe))
8524 lpfc_sli4_mq_release(phba->sli4_hba.mbx_wq);
8525 return workposted;
8526}
8527
8528/**
8529 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8530 * @phba: Pointer to HBA context object.
8531 * @cqe: Pointer to mailbox completion queue entry.
8532 *
8533 * This routine process a mailbox completion queue entry, it invokes the
8534 * proper mailbox complete handling or asynchrous event handling routine
8535 * according to the MCQE's async bit.
8536 *
8537 * Return: true if work posted to worker thread, otherwise false.
8538 **/
8539static bool
8540lpfc_sli4_sp_handle_mcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8541{
8542 struct lpfc_mcqe mcqe;
8543 bool workposted;
8544
8545 /* Copy the mailbox MCQE and convert endian order as needed */
8546 lpfc_sli_pcimem_bcopy(cqe, &mcqe, sizeof(struct lpfc_mcqe));
8547
8548 /* Invoke the proper event handling routine */
8549 if (!bf_get(lpfc_trailer_async, &mcqe))
8550 workposted = lpfc_sli4_sp_handle_mbox_event(phba, &mcqe);
8551 else
8552 workposted = lpfc_sli4_sp_handle_async_event(phba, &mcqe);
8553 return workposted;
8554}
8555
8556/**
James Smart4f774512009-05-22 14:52:35 -04008557 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8558 * @phba: Pointer to HBA context object.
8559 * @wcqe: Pointer to work-queue completion queue entry.
8560 *
8561 * This routine handles an ELS work-queue completion event.
8562 *
8563 * Return: true if work posted to worker thread, otherwise false.
8564 **/
8565static bool
8566lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba *phba,
8567 struct lpfc_wcqe_complete *wcqe)
8568{
8569 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
8570 struct lpfc_iocbq *cmdiocbq;
8571 struct lpfc_iocbq *irspiocbq;
8572 unsigned long iflags;
8573 bool workposted = false;
8574
8575 spin_lock_irqsave(&phba->hbalock, iflags);
8576 pring->stats.iocb_event++;
8577 /* Look up the ELS command IOCB and create pseudo response IOCB */
8578 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8579 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8580 spin_unlock_irqrestore(&phba->hbalock, iflags);
8581
8582 if (unlikely(!cmdiocbq)) {
8583 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8584 "0386 ELS complete with no corresponding "
8585 "cmdiocb: iotag (%d)\n",
8586 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8587 return workposted;
8588 }
8589
8590 /* Fake the irspiocbq and copy necessary response information */
8591 irspiocbq = lpfc_sli_get_iocbq(phba);
8592 if (!irspiocbq) {
8593 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8594 "0387 Failed to allocate an iocbq\n");
8595 return workposted;
8596 }
8597 lpfc_sli4_iocb_param_transfer(irspiocbq, cmdiocbq, wcqe);
8598
8599 /* Add the irspiocb to the response IOCB work list */
8600 spin_lock_irqsave(&phba->hbalock, iflags);
8601 list_add_tail(&irspiocbq->list, &phba->sli4_hba.sp_rspiocb_work_queue);
8602 /* Indicate ELS ring attention */
8603 phba->work_ha |= (HA_R0ATT << (4*LPFC_ELS_RING));
8604 spin_unlock_irqrestore(&phba->hbalock, iflags);
8605 workposted = true;
8606
8607 return workposted;
8608}
8609
8610/**
8611 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8612 * @phba: Pointer to HBA context object.
8613 * @wcqe: Pointer to work-queue completion queue entry.
8614 *
8615 * This routine handles slow-path WQ entry comsumed event by invoking the
8616 * proper WQ release routine to the slow-path WQ.
8617 **/
8618static void
8619lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
8620 struct lpfc_wcqe_release *wcqe)
8621{
8622 /* Check for the slow-path ELS work queue */
8623 if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
8624 lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
8625 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8626 else
8627 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8628 "2579 Slow-path wqe consume event carries "
8629 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8630 bf_get(lpfc_wcqe_r_wqe_index, wcqe),
8631 phba->sli4_hba.els_wq->queue_id);
8632}
8633
8634/**
8635 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8636 * @phba: Pointer to HBA context object.
8637 * @cq: Pointer to a WQ completion queue.
8638 * @wcqe: Pointer to work-queue completion queue entry.
8639 *
8640 * This routine handles an XRI abort event.
8641 *
8642 * Return: true if work posted to worker thread, otherwise false.
8643 **/
8644static bool
8645lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba,
8646 struct lpfc_queue *cq,
8647 struct sli4_wcqe_xri_aborted *wcqe)
8648{
8649 bool workposted = false;
8650 struct lpfc_cq_event *cq_event;
8651 unsigned long iflags;
8652
8653 /* Allocate a new internal CQ_EVENT entry */
8654 cq_event = lpfc_sli4_cq_event_alloc(phba);
8655 if (!cq_event) {
8656 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8657 "0602 Failed to allocate CQ_EVENT entry\n");
8658 return false;
8659 }
8660
8661 /* Move the CQE into the proper xri abort event list */
8662 memcpy(&cq_event->cqe, wcqe, sizeof(struct sli4_wcqe_xri_aborted));
8663 switch (cq->subtype) {
8664 case LPFC_FCP:
8665 spin_lock_irqsave(&phba->hbalock, iflags);
8666 list_add_tail(&cq_event->list,
8667 &phba->sli4_hba.sp_fcp_xri_aborted_work_queue);
8668 /* Set the fcp xri abort event flag */
8669 phba->hba_flag |= FCP_XRI_ABORT_EVENT;
8670 spin_unlock_irqrestore(&phba->hbalock, iflags);
8671 workposted = true;
8672 break;
8673 case LPFC_ELS:
8674 spin_lock_irqsave(&phba->hbalock, iflags);
8675 list_add_tail(&cq_event->list,
8676 &phba->sli4_hba.sp_els_xri_aborted_work_queue);
8677 /* Set the els xri abort event flag */
8678 phba->hba_flag |= ELS_XRI_ABORT_EVENT;
8679 spin_unlock_irqrestore(&phba->hbalock, iflags);
8680 workposted = true;
8681 break;
8682 default:
8683 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8684 "0603 Invalid work queue CQE subtype (x%x)\n",
8685 cq->subtype);
8686 workposted = false;
8687 break;
8688 }
8689 return workposted;
8690}
8691
8692/**
8693 * lpfc_sli4_sp_handle_wcqe - Process a work-queue completion queue entry
8694 * @phba: Pointer to HBA context object.
8695 * @cq: Pointer to the completion queue.
8696 * @wcqe: Pointer to a completion queue entry.
8697 *
8698 * This routine process a slow-path work-queue completion queue entry.
8699 *
8700 * Return: true if work posted to worker thread, otherwise false.
8701 **/
8702static bool
8703lpfc_sli4_sp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8704 struct lpfc_cqe *cqe)
8705{
8706 struct lpfc_wcqe_complete wcqe;
8707 bool workposted = false;
8708
8709 /* Copy the work queue CQE and convert endian order if needed */
8710 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
8711
8712 /* Check and process for different type of WCQE and dispatch */
8713 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
8714 case CQE_CODE_COMPL_WQE:
8715 /* Process the WQ complete event */
8716 workposted = lpfc_sli4_sp_handle_els_wcqe(phba,
8717 (struct lpfc_wcqe_complete *)&wcqe);
8718 break;
8719 case CQE_CODE_RELEASE_WQE:
8720 /* Process the WQ release event */
8721 lpfc_sli4_sp_handle_rel_wcqe(phba,
8722 (struct lpfc_wcqe_release *)&wcqe);
8723 break;
8724 case CQE_CODE_XRI_ABORTED:
8725 /* Process the WQ XRI abort event */
8726 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
8727 (struct sli4_wcqe_xri_aborted *)&wcqe);
8728 break;
8729 default:
8730 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8731 "0388 Not a valid WCQE code: x%x\n",
8732 bf_get(lpfc_wcqe_c_code, &wcqe));
8733 break;
8734 }
8735 return workposted;
8736}
8737
8738/**
8739 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8740 * @phba: Pointer to HBA context object.
8741 * @rcqe: Pointer to receive-queue completion queue entry.
8742 *
8743 * This routine process a receive-queue completion queue entry.
8744 *
8745 * Return: true if work posted to worker thread, otherwise false.
8746 **/
8747static bool
8748lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_cqe *cqe)
8749{
8750 struct lpfc_rcqe rcqe;
8751 bool workposted = false;
8752 struct lpfc_queue *hrq = phba->sli4_hba.hdr_rq;
8753 struct lpfc_queue *drq = phba->sli4_hba.dat_rq;
8754 struct hbq_dmabuf *dma_buf;
8755 uint32_t status;
8756 unsigned long iflags;
8757
8758 /* Copy the receive queue CQE and convert endian order if needed */
8759 lpfc_sli_pcimem_bcopy(cqe, &rcqe, sizeof(struct lpfc_rcqe));
8760 lpfc_sli4_rq_release(hrq, drq);
8761 if (bf_get(lpfc_rcqe_code, &rcqe) != CQE_CODE_RECEIVE)
8762 goto out;
8763 if (bf_get(lpfc_rcqe_rq_id, &rcqe) != hrq->queue_id)
8764 goto out;
8765
8766 status = bf_get(lpfc_rcqe_status, &rcqe);
8767 switch (status) {
8768 case FC_STATUS_RQ_BUF_LEN_EXCEEDED:
8769 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8770 "2537 Receive Frame Truncated!!\n");
8771 case FC_STATUS_RQ_SUCCESS:
8772 spin_lock_irqsave(&phba->hbalock, iflags);
8773 dma_buf = lpfc_sli_hbqbuf_get(&phba->hbqs[0].hbq_buffer_list);
8774 if (!dma_buf) {
8775 spin_unlock_irqrestore(&phba->hbalock, iflags);
8776 goto out;
8777 }
8778 memcpy(&dma_buf->rcqe, &rcqe, sizeof(rcqe));
8779 /* save off the frame for the word thread to process */
8780 list_add_tail(&dma_buf->dbuf.list, &phba->rb_pend_list);
8781 /* Frame received */
8782 phba->hba_flag |= HBA_RECEIVE_BUFFER;
8783 spin_unlock_irqrestore(&phba->hbalock, iflags);
8784 workposted = true;
8785 break;
8786 case FC_STATUS_INSUFF_BUF_NEED_BUF:
8787 case FC_STATUS_INSUFF_BUF_FRM_DISC:
8788 /* Post more buffers if possible */
8789 spin_lock_irqsave(&phba->hbalock, iflags);
8790 phba->hba_flag |= HBA_POST_RECEIVE_BUFFER;
8791 spin_unlock_irqrestore(&phba->hbalock, iflags);
8792 workposted = true;
8793 break;
8794 }
8795out:
8796 return workposted;
8797
8798}
8799
8800/**
8801 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
8802 * @phba: Pointer to HBA context object.
8803 * @eqe: Pointer to fast-path event queue entry.
8804 *
8805 * This routine process a event queue entry from the slow-path event queue.
8806 * It will check the MajorCode and MinorCode to determine this is for a
8807 * completion event on a completion queue, if not, an error shall be logged
8808 * and just return. Otherwise, it will get to the corresponding completion
8809 * queue and process all the entries on that completion queue, rearm the
8810 * completion queue, and then return.
8811 *
8812 **/
8813static void
8814lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
8815{
8816 struct lpfc_queue *cq = NULL, *childq, *speq;
8817 struct lpfc_cqe *cqe;
8818 bool workposted = false;
8819 int ecount = 0;
8820 uint16_t cqid;
8821
8822 if (bf_get(lpfc_eqe_major_code, eqe) != 0 ||
8823 bf_get(lpfc_eqe_minor_code, eqe) != 0) {
8824 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8825 "0359 Not a valid slow-path completion "
8826 "event: majorcode=x%x, minorcode=x%x\n",
8827 bf_get(lpfc_eqe_major_code, eqe),
8828 bf_get(lpfc_eqe_minor_code, eqe));
8829 return;
8830 }
8831
8832 /* Get the reference to the corresponding CQ */
8833 cqid = bf_get(lpfc_eqe_resource_id, eqe);
8834
8835 /* Search for completion queue pointer matching this cqid */
8836 speq = phba->sli4_hba.sp_eq;
8837 list_for_each_entry(childq, &speq->child_list, list) {
8838 if (childq->queue_id == cqid) {
8839 cq = childq;
8840 break;
8841 }
8842 }
8843 if (unlikely(!cq)) {
8844 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8845 "0365 Slow-path CQ identifier (%d) does "
8846 "not exist\n", cqid);
8847 return;
8848 }
8849
8850 /* Process all the entries to the CQ */
8851 switch (cq->type) {
8852 case LPFC_MCQ:
8853 while ((cqe = lpfc_sli4_cq_get(cq))) {
8854 workposted |= lpfc_sli4_sp_handle_mcqe(phba, cqe);
8855 if (!(++ecount % LPFC_GET_QE_REL_INT))
8856 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8857 }
8858 break;
8859 case LPFC_WCQ:
8860 while ((cqe = lpfc_sli4_cq_get(cq))) {
8861 workposted |= lpfc_sli4_sp_handle_wcqe(phba, cq, cqe);
8862 if (!(++ecount % LPFC_GET_QE_REL_INT))
8863 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8864 }
8865 break;
8866 case LPFC_RCQ:
8867 while ((cqe = lpfc_sli4_cq_get(cq))) {
8868 workposted |= lpfc_sli4_sp_handle_rcqe(phba, cqe);
8869 if (!(++ecount % LPFC_GET_QE_REL_INT))
8870 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
8871 }
8872 break;
8873 default:
8874 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8875 "0370 Invalid completion queue type (%d)\n",
8876 cq->type);
8877 return;
8878 }
8879
8880 /* Catch the no cq entry condition, log an error */
8881 if (unlikely(ecount == 0))
8882 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
8883 "0371 No entry from the CQ: identifier "
8884 "(x%x), type (%d)\n", cq->queue_id, cq->type);
8885
8886 /* In any case, flash and re-arm the RCQ */
8887 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
8888
8889 /* wake up worker thread if there are works to be done */
8890 if (workposted)
8891 lpfc_worker_wake_up(phba);
8892}
8893
8894/**
8895 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
8896 * @eqe: Pointer to fast-path completion queue entry.
8897 *
8898 * This routine process a fast-path work queue completion entry from fast-path
8899 * event queue for FCP command response completion.
8900 **/
8901static void
8902lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba,
8903 struct lpfc_wcqe_complete *wcqe)
8904{
8905 struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_FCP_RING];
8906 struct lpfc_iocbq *cmdiocbq;
8907 struct lpfc_iocbq irspiocbq;
8908 unsigned long iflags;
8909
8910 spin_lock_irqsave(&phba->hbalock, iflags);
8911 pring->stats.iocb_event++;
8912 spin_unlock_irqrestore(&phba->hbalock, iflags);
8913
8914 /* Check for response status */
8915 if (unlikely(bf_get(lpfc_wcqe_c_status, wcqe))) {
8916 /* If resource errors reported from HBA, reduce queue
8917 * depth of the SCSI device.
8918 */
8919 if ((bf_get(lpfc_wcqe_c_status, wcqe) ==
8920 IOSTAT_LOCAL_REJECT) &&
8921 (wcqe->parameter == IOERR_NO_RESOURCES)) {
8922 phba->lpfc_rampdown_queue_depth(phba);
8923 }
8924 /* Log the error status */
8925 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8926 "0373 FCP complete error: status=x%x, "
8927 "hw_status=x%x, total_data_specified=%d, "
8928 "parameter=x%x, word3=x%x\n",
8929 bf_get(lpfc_wcqe_c_status, wcqe),
8930 bf_get(lpfc_wcqe_c_hw_status, wcqe),
8931 wcqe->total_data_placed, wcqe->parameter,
8932 wcqe->word3);
8933 }
8934
8935 /* Look up the FCP command IOCB and create pseudo response IOCB */
8936 spin_lock_irqsave(&phba->hbalock, iflags);
8937 cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
8938 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8939 spin_unlock_irqrestore(&phba->hbalock, iflags);
8940 if (unlikely(!cmdiocbq)) {
8941 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8942 "0374 FCP complete with no corresponding "
8943 "cmdiocb: iotag (%d)\n",
8944 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8945 return;
8946 }
8947 if (unlikely(!cmdiocbq->iocb_cmpl)) {
8948 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8949 "0375 FCP cmdiocb not callback function "
8950 "iotag: (%d)\n",
8951 bf_get(lpfc_wcqe_c_request_tag, wcqe));
8952 return;
8953 }
8954
8955 /* Fake the irspiocb and copy necessary response information */
8956 lpfc_sli4_iocb_param_transfer(&irspiocbq, cmdiocbq, wcqe);
8957
8958 /* Pass the cmd_iocb and the rsp state to the upper layer */
8959 (cmdiocbq->iocb_cmpl)(phba, cmdiocbq, &irspiocbq);
8960}
8961
8962/**
8963 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
8964 * @phba: Pointer to HBA context object.
8965 * @cq: Pointer to completion queue.
8966 * @wcqe: Pointer to work-queue completion queue entry.
8967 *
8968 * This routine handles an fast-path WQ entry comsumed event by invoking the
8969 * proper WQ release routine to the slow-path WQ.
8970 **/
8971static void
8972lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
8973 struct lpfc_wcqe_release *wcqe)
8974{
8975 struct lpfc_queue *childwq;
8976 bool wqid_matched = false;
8977 uint16_t fcp_wqid;
8978
8979 /* Check for fast-path FCP work queue release */
8980 fcp_wqid = bf_get(lpfc_wcqe_r_wq_id, wcqe);
8981 list_for_each_entry(childwq, &cq->child_list, list) {
8982 if (childwq->queue_id == fcp_wqid) {
8983 lpfc_sli4_wq_release(childwq,
8984 bf_get(lpfc_wcqe_r_wqe_index, wcqe));
8985 wqid_matched = true;
8986 break;
8987 }
8988 }
8989 /* Report warning log message if no match found */
8990 if (wqid_matched != true)
8991 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
8992 "2580 Fast-path wqe consume event carries "
8993 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid);
8994}
8995
8996/**
8997 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
8998 * @cq: Pointer to the completion queue.
8999 * @eqe: Pointer to fast-path completion queue entry.
9000 *
9001 * This routine process a fast-path work queue completion entry from fast-path
9002 * event queue for FCP command response completion.
9003 **/
9004static int
9005lpfc_sli4_fp_handle_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
9006 struct lpfc_cqe *cqe)
9007{
9008 struct lpfc_wcqe_release wcqe;
9009 bool workposted = false;
9010
9011 /* Copy the work queue CQE and convert endian order if needed */
9012 lpfc_sli_pcimem_bcopy(cqe, &wcqe, sizeof(struct lpfc_cqe));
9013
9014 /* Check and process for different type of WCQE and dispatch */
9015 switch (bf_get(lpfc_wcqe_c_code, &wcqe)) {
9016 case CQE_CODE_COMPL_WQE:
9017 /* Process the WQ complete event */
9018 lpfc_sli4_fp_handle_fcp_wcqe(phba,
9019 (struct lpfc_wcqe_complete *)&wcqe);
9020 break;
9021 case CQE_CODE_RELEASE_WQE:
9022 /* Process the WQ release event */
9023 lpfc_sli4_fp_handle_rel_wcqe(phba, cq,
9024 (struct lpfc_wcqe_release *)&wcqe);
9025 break;
9026 case CQE_CODE_XRI_ABORTED:
9027 /* Process the WQ XRI abort event */
9028 workposted = lpfc_sli4_sp_handle_abort_xri_wcqe(phba, cq,
9029 (struct sli4_wcqe_xri_aborted *)&wcqe);
9030 break;
9031 default:
9032 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9033 "0144 Not a valid WCQE code: x%x\n",
9034 bf_get(lpfc_wcqe_c_code, &wcqe));
9035 break;
9036 }
9037 return workposted;
9038}
9039
9040/**
9041 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9042 * @phba: Pointer to HBA context object.
9043 * @eqe: Pointer to fast-path event queue entry.
9044 *
9045 * This routine process a event queue entry from the fast-path event queue.
9046 * It will check the MajorCode and MinorCode to determine this is for a
9047 * completion event on a completion queue, if not, an error shall be logged
9048 * and just return. Otherwise, it will get to the corresponding completion
9049 * queue and process all the entries on the completion queue, rearm the
9050 * completion queue, and then return.
9051 **/
9052static void
9053lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
9054 uint32_t fcp_cqidx)
9055{
9056 struct lpfc_queue *cq;
9057 struct lpfc_cqe *cqe;
9058 bool workposted = false;
9059 uint16_t cqid;
9060 int ecount = 0;
9061
9062 if (unlikely(bf_get(lpfc_eqe_major_code, eqe) != 0) ||
9063 unlikely(bf_get(lpfc_eqe_minor_code, eqe) != 0)) {
9064 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9065 "0366 Not a valid fast-path completion "
9066 "event: majorcode=x%x, minorcode=x%x\n",
9067 bf_get(lpfc_eqe_major_code, eqe),
9068 bf_get(lpfc_eqe_minor_code, eqe));
9069 return;
9070 }
9071
9072 cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
9073 if (unlikely(!cq)) {
9074 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9075 "0367 Fast-path completion queue does not "
9076 "exist\n");
9077 return;
9078 }
9079
9080 /* Get the reference to the corresponding CQ */
9081 cqid = bf_get(lpfc_eqe_resource_id, eqe);
9082 if (unlikely(cqid != cq->queue_id)) {
9083 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9084 "0368 Miss-matched fast-path completion "
9085 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9086 cqid, cq->queue_id);
9087 return;
9088 }
9089
9090 /* Process all the entries to the CQ */
9091 while ((cqe = lpfc_sli4_cq_get(cq))) {
9092 workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
9093 if (!(++ecount % LPFC_GET_QE_REL_INT))
9094 lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
9095 }
9096
9097 /* Catch the no cq entry condition */
9098 if (unlikely(ecount == 0))
9099 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9100 "0369 No entry from fast-path completion "
9101 "queue fcpcqid=%d\n", cq->queue_id);
9102
9103 /* In any case, flash and re-arm the CQ */
9104 lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
9105
9106 /* wake up worker thread if there are works to be done */
9107 if (workposted)
9108 lpfc_worker_wake_up(phba);
9109}
9110
9111static void
9112lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
9113{
9114 struct lpfc_eqe *eqe;
9115
9116 /* walk all the EQ entries and drop on the floor */
9117 while ((eqe = lpfc_sli4_eq_get(eq)))
9118 ;
9119
9120 /* Clear and re-arm the EQ */
9121 lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
9122}
9123
9124/**
9125 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9126 * @irq: Interrupt number.
9127 * @dev_id: The device context pointer.
9128 *
9129 * This function is directly called from the PCI layer as an interrupt
9130 * service routine when device with SLI-4 interface spec is enabled with
9131 * MSI-X multi-message interrupt mode and there are slow-path events in
9132 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9133 * interrupt mode, this function is called as part of the device-level
9134 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9135 * undergoing initialization, the interrupt handler will not process the
9136 * interrupt. The link attention and ELS ring attention events are handled
9137 * by the worker thread. The interrupt handler signals the worker thread
9138 * and returns for these events. This function is called without any lock
9139 * held. It gets the hbalock to access and update SLI data structures.
9140 *
9141 * This function returns IRQ_HANDLED when interrupt is handled else it
9142 * returns IRQ_NONE.
9143 **/
9144irqreturn_t
9145lpfc_sli4_sp_intr_handler(int irq, void *dev_id)
9146{
9147 struct lpfc_hba *phba;
9148 struct lpfc_queue *speq;
9149 struct lpfc_eqe *eqe;
9150 unsigned long iflag;
9151 int ecount = 0;
9152
9153 /*
9154 * Get the driver's phba structure from the dev_id
9155 */
9156 phba = (struct lpfc_hba *)dev_id;
9157
9158 if (unlikely(!phba))
9159 return IRQ_NONE;
9160
9161 /* Get to the EQ struct associated with this vector */
9162 speq = phba->sli4_hba.sp_eq;
9163
9164 /* Check device state for handling interrupt */
9165 if (unlikely(lpfc_intr_state_check(phba))) {
9166 /* Check again for link_state with lock held */
9167 spin_lock_irqsave(&phba->hbalock, iflag);
9168 if (phba->link_state < LPFC_LINK_DOWN)
9169 /* Flush, clear interrupt, and rearm the EQ */
9170 lpfc_sli4_eq_flush(phba, speq);
9171 spin_unlock_irqrestore(&phba->hbalock, iflag);
9172 return IRQ_NONE;
9173 }
9174
9175 /*
9176 * Process all the event on FCP slow-path EQ
9177 */
9178 while ((eqe = lpfc_sli4_eq_get(speq))) {
9179 lpfc_sli4_sp_handle_eqe(phba, eqe);
9180 if (!(++ecount % LPFC_GET_QE_REL_INT))
9181 lpfc_sli4_eq_release(speq, LPFC_QUEUE_NOARM);
9182 }
9183
9184 /* Always clear and re-arm the slow-path EQ */
9185 lpfc_sli4_eq_release(speq, LPFC_QUEUE_REARM);
9186
9187 /* Catch the no cq entry condition */
9188 if (unlikely(ecount == 0)) {
9189 if (phba->intr_type == MSIX)
9190 /* MSI-X treated interrupt served as no EQ share INT */
9191 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9192 "0357 MSI-X interrupt with no EQE\n");
9193 else
9194 /* Non MSI-X treated on interrupt as EQ share INT */
9195 return IRQ_NONE;
9196 }
9197
9198 return IRQ_HANDLED;
9199} /* lpfc_sli4_sp_intr_handler */
9200
9201/**
9202 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9203 * @irq: Interrupt number.
9204 * @dev_id: The device context pointer.
9205 *
9206 * This function is directly called from the PCI layer as an interrupt
9207 * service routine when device with SLI-4 interface spec is enabled with
9208 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9209 * ring event in the HBA. However, when the device is enabled with either
9210 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9211 * device-level interrupt handler. When the PCI slot is in error recovery
9212 * or the HBA is undergoing initialization, the interrupt handler will not
9213 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9214 * the intrrupt context. This function is called without any lock held.
9215 * It gets the hbalock to access and update SLI data structures. Note that,
9216 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9217 * equal to that of FCP CQ index.
9218 *
9219 * This function returns IRQ_HANDLED when interrupt is handled else it
9220 * returns IRQ_NONE.
9221 **/
9222irqreturn_t
9223lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
9224{
9225 struct lpfc_hba *phba;
9226 struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
9227 struct lpfc_queue *fpeq;
9228 struct lpfc_eqe *eqe;
9229 unsigned long iflag;
9230 int ecount = 0;
9231 uint32_t fcp_eqidx;
9232
9233 /* Get the driver's phba structure from the dev_id */
9234 fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
9235 phba = fcp_eq_hdl->phba;
9236 fcp_eqidx = fcp_eq_hdl->idx;
9237
9238 if (unlikely(!phba))
9239 return IRQ_NONE;
9240
9241 /* Get to the EQ struct associated with this vector */
9242 fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
9243
9244 /* Check device state for handling interrupt */
9245 if (unlikely(lpfc_intr_state_check(phba))) {
9246 /* Check again for link_state with lock held */
9247 spin_lock_irqsave(&phba->hbalock, iflag);
9248 if (phba->link_state < LPFC_LINK_DOWN)
9249 /* Flush, clear interrupt, and rearm the EQ */
9250 lpfc_sli4_eq_flush(phba, fpeq);
9251 spin_unlock_irqrestore(&phba->hbalock, iflag);
9252 return IRQ_NONE;
9253 }
9254
9255 /*
9256 * Process all the event on FCP fast-path EQ
9257 */
9258 while ((eqe = lpfc_sli4_eq_get(fpeq))) {
9259 lpfc_sli4_fp_handle_eqe(phba, eqe, fcp_eqidx);
9260 if (!(++ecount % LPFC_GET_QE_REL_INT))
9261 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_NOARM);
9262 }
9263
9264 /* Always clear and re-arm the fast-path EQ */
9265 lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
9266
9267 if (unlikely(ecount == 0)) {
9268 if (phba->intr_type == MSIX)
9269 /* MSI-X treated interrupt served as no EQ share INT */
9270 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
9271 "0358 MSI-X interrupt with no EQE\n");
9272 else
9273 /* Non MSI-X treated on interrupt as EQ share INT */
9274 return IRQ_NONE;
9275 }
9276
9277 return IRQ_HANDLED;
9278} /* lpfc_sli4_fp_intr_handler */
9279
9280/**
9281 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9282 * @irq: Interrupt number.
9283 * @dev_id: The device context pointer.
9284 *
9285 * This function is the device-level interrupt handler to device with SLI-4
9286 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9287 * interrupt mode is enabled and there is an event in the HBA which requires
9288 * driver attention. This function invokes the slow-path interrupt attention
9289 * handling function and fast-path interrupt attention handling function in
9290 * turn to process the relevant HBA attention events. This function is called
9291 * without any lock held. It gets the hbalock to access and update SLI data
9292 * structures.
9293 *
9294 * This function returns IRQ_HANDLED when interrupt is handled, else it
9295 * returns IRQ_NONE.
9296 **/
9297irqreturn_t
9298lpfc_sli4_intr_handler(int irq, void *dev_id)
9299{
9300 struct lpfc_hba *phba;
9301 irqreturn_t sp_irq_rc, fp_irq_rc;
9302 bool fp_handled = false;
9303 uint32_t fcp_eqidx;
9304
9305 /* Get the driver's phba structure from the dev_id */
9306 phba = (struct lpfc_hba *)dev_id;
9307
9308 if (unlikely(!phba))
9309 return IRQ_NONE;
9310
9311 /*
9312 * Invokes slow-path host attention interrupt handling as appropriate.
9313 */
9314 sp_irq_rc = lpfc_sli4_sp_intr_handler(irq, dev_id);
9315
9316 /*
9317 * Invoke fast-path host attention interrupt handling as appropriate.
9318 */
9319 for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
9320 fp_irq_rc = lpfc_sli4_fp_intr_handler(irq,
9321 &phba->sli4_hba.fcp_eq_hdl[fcp_eqidx]);
9322 if (fp_irq_rc == IRQ_HANDLED)
9323 fp_handled |= true;
9324 }
9325
9326 return (fp_handled == true) ? IRQ_HANDLED : sp_irq_rc;
9327} /* lpfc_sli4_intr_handler */
9328
9329/**
9330 * lpfc_sli4_queue_free - free a queue structure and associated memory
9331 * @queue: The queue structure to free.
9332 *
9333 * This function frees a queue structure and the DMAable memeory used for
9334 * the host resident queue. This function must be called after destroying the
9335 * queue on the HBA.
9336 **/
9337void
9338lpfc_sli4_queue_free(struct lpfc_queue *queue)
9339{
9340 struct lpfc_dmabuf *dmabuf;
9341
9342 if (!queue)
9343 return;
9344
9345 while (!list_empty(&queue->page_list)) {
9346 list_remove_head(&queue->page_list, dmabuf, struct lpfc_dmabuf,
9347 list);
9348 dma_free_coherent(&queue->phba->pcidev->dev, PAGE_SIZE,
9349 dmabuf->virt, dmabuf->phys);
9350 kfree(dmabuf);
9351 }
9352 kfree(queue);
9353 return;
9354}
9355
9356/**
9357 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9358 * @phba: The HBA that this queue is being created on.
9359 * @entry_size: The size of each queue entry for this queue.
9360 * @entry count: The number of entries that this queue will handle.
9361 *
9362 * This function allocates a queue structure and the DMAable memory used for
9363 * the host resident queue. This function must be called before creating the
9364 * queue on the HBA.
9365 **/
9366struct lpfc_queue *
9367lpfc_sli4_queue_alloc(struct lpfc_hba *phba, uint32_t entry_size,
9368 uint32_t entry_count)
9369{
9370 struct lpfc_queue *queue;
9371 struct lpfc_dmabuf *dmabuf;
9372 int x, total_qe_count;
9373 void *dma_pointer;
9374
9375
9376 queue = kzalloc(sizeof(struct lpfc_queue) +
9377 (sizeof(union sli4_qe) * entry_count), GFP_KERNEL);
9378 if (!queue)
9379 return NULL;
9380 queue->page_count = (PAGE_ALIGN(entry_size * entry_count))/PAGE_SIZE;
9381 INIT_LIST_HEAD(&queue->list);
9382 INIT_LIST_HEAD(&queue->page_list);
9383 INIT_LIST_HEAD(&queue->child_list);
9384 for (x = 0, total_qe_count = 0; x < queue->page_count; x++) {
9385 dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
9386 if (!dmabuf)
9387 goto out_fail;
9388 dmabuf->virt = dma_alloc_coherent(&phba->pcidev->dev,
9389 PAGE_SIZE, &dmabuf->phys,
9390 GFP_KERNEL);
9391 if (!dmabuf->virt) {
9392 kfree(dmabuf);
9393 goto out_fail;
9394 }
James Smartd11e31d2009-06-10 17:23:06 -04009395 memset(dmabuf->virt, 0, PAGE_SIZE);
James Smart4f774512009-05-22 14:52:35 -04009396 dmabuf->buffer_tag = x;
9397 list_add_tail(&dmabuf->list, &queue->page_list);
9398 /* initialize queue's entry array */
9399 dma_pointer = dmabuf->virt;
9400 for (; total_qe_count < entry_count &&
9401 dma_pointer < (PAGE_SIZE + dmabuf->virt);
9402 total_qe_count++, dma_pointer += entry_size) {
9403 queue->qe[total_qe_count].address = dma_pointer;
9404 }
9405 }
9406 queue->entry_size = entry_size;
9407 queue->entry_count = entry_count;
9408 queue->phba = phba;
9409
9410 return queue;
9411out_fail:
9412 lpfc_sli4_queue_free(queue);
9413 return NULL;
9414}
9415
9416/**
9417 * lpfc_eq_create - Create an Event Queue on the HBA
9418 * @phba: HBA structure that indicates port to create a queue on.
9419 * @eq: The queue structure to use to create the event queue.
9420 * @imax: The maximum interrupt per second limit.
9421 *
9422 * This function creates an event queue, as detailed in @eq, on a port,
9423 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9424 *
9425 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9426 * is used to get the entry count and entry size that are necessary to
9427 * determine the number of pages to allocate and use for this queue. This
9428 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9429 * event queue. This function is asynchronous and will wait for the mailbox
9430 * command to finish before continuing.
9431 *
9432 * On success this function will return a zero. If unable to allocate enough
9433 * memory this function will return ENOMEM. If the queue create mailbox command
9434 * fails this function will return ENXIO.
9435 **/
9436uint32_t
9437lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
9438{
9439 struct lpfc_mbx_eq_create *eq_create;
9440 LPFC_MBOXQ_t *mbox;
9441 int rc, length, status = 0;
9442 struct lpfc_dmabuf *dmabuf;
9443 uint32_t shdr_status, shdr_add_status;
9444 union lpfc_sli4_cfg_shdr *shdr;
9445 uint16_t dmult;
9446
9447 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9448 if (!mbox)
9449 return -ENOMEM;
9450 length = (sizeof(struct lpfc_mbx_eq_create) -
9451 sizeof(struct lpfc_sli4_cfg_mhdr));
9452 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9453 LPFC_MBOX_OPCODE_EQ_CREATE,
9454 length, LPFC_SLI4_MBX_EMBED);
9455 eq_create = &mbox->u.mqe.un.eq_create;
9456 bf_set(lpfc_mbx_eq_create_num_pages, &eq_create->u.request,
9457 eq->page_count);
9458 bf_set(lpfc_eq_context_size, &eq_create->u.request.context,
9459 LPFC_EQE_SIZE);
9460 bf_set(lpfc_eq_context_valid, &eq_create->u.request.context, 1);
9461 /* Calculate delay multiper from maximum interrupt per second */
9462 dmult = LPFC_DMULT_CONST/imax - 1;
9463 bf_set(lpfc_eq_context_delay_multi, &eq_create->u.request.context,
9464 dmult);
9465 switch (eq->entry_count) {
9466 default:
9467 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9468 "0360 Unsupported EQ count. (%d)\n",
9469 eq->entry_count);
9470 if (eq->entry_count < 256)
9471 return -EINVAL;
9472 /* otherwise default to smallest count (drop through) */
9473 case 256:
9474 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9475 LPFC_EQ_CNT_256);
9476 break;
9477 case 512:
9478 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9479 LPFC_EQ_CNT_512);
9480 break;
9481 case 1024:
9482 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9483 LPFC_EQ_CNT_1024);
9484 break;
9485 case 2048:
9486 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9487 LPFC_EQ_CNT_2048);
9488 break;
9489 case 4096:
9490 bf_set(lpfc_eq_context_count, &eq_create->u.request.context,
9491 LPFC_EQ_CNT_4096);
9492 break;
9493 }
9494 list_for_each_entry(dmabuf, &eq->page_list, list) {
9495 eq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9496 putPaddrLow(dmabuf->phys);
9497 eq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9498 putPaddrHigh(dmabuf->phys);
9499 }
9500 mbox->vport = phba->pport;
9501 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
9502 mbox->context1 = NULL;
9503 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9504 shdr = (union lpfc_sli4_cfg_shdr *) &eq_create->header.cfg_shdr;
9505 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9506 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9507 if (shdr_status || shdr_add_status || rc) {
9508 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9509 "2500 EQ_CREATE mailbox failed with "
9510 "status x%x add_status x%x, mbx status x%x\n",
9511 shdr_status, shdr_add_status, rc);
9512 status = -ENXIO;
9513 }
9514 eq->type = LPFC_EQ;
9515 eq->subtype = LPFC_NONE;
9516 eq->queue_id = bf_get(lpfc_mbx_eq_create_q_id, &eq_create->u.response);
9517 if (eq->queue_id == 0xFFFF)
9518 status = -ENXIO;
9519 eq->host_index = 0;
9520 eq->hba_index = 0;
9521
James Smart8fa38512009-07-19 10:01:03 -04009522 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009523 return status;
9524}
9525
9526/**
9527 * lpfc_cq_create - Create a Completion Queue on the HBA
9528 * @phba: HBA structure that indicates port to create a queue on.
9529 * @cq: The queue structure to use to create the completion queue.
9530 * @eq: The event queue to bind this completion queue to.
9531 *
9532 * This function creates a completion queue, as detailed in @wq, on a port,
9533 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9534 *
9535 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9536 * is used to get the entry count and entry size that are necessary to
9537 * determine the number of pages to allocate and use for this queue. The @eq
9538 * is used to indicate which event queue to bind this completion queue to. This
9539 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9540 * completion queue. This function is asynchronous and will wait for the mailbox
9541 * command to finish before continuing.
9542 *
9543 * On success this function will return a zero. If unable to allocate enough
9544 * memory this function will return ENOMEM. If the queue create mailbox command
9545 * fails this function will return ENXIO.
9546 **/
9547uint32_t
9548lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
9549 struct lpfc_queue *eq, uint32_t type, uint32_t subtype)
9550{
9551 struct lpfc_mbx_cq_create *cq_create;
9552 struct lpfc_dmabuf *dmabuf;
9553 LPFC_MBOXQ_t *mbox;
9554 int rc, length, status = 0;
9555 uint32_t shdr_status, shdr_add_status;
9556 union lpfc_sli4_cfg_shdr *shdr;
9557
9558 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9559 if (!mbox)
9560 return -ENOMEM;
9561 length = (sizeof(struct lpfc_mbx_cq_create) -
9562 sizeof(struct lpfc_sli4_cfg_mhdr));
9563 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9564 LPFC_MBOX_OPCODE_CQ_CREATE,
9565 length, LPFC_SLI4_MBX_EMBED);
9566 cq_create = &mbox->u.mqe.un.cq_create;
9567 bf_set(lpfc_mbx_cq_create_num_pages, &cq_create->u.request,
9568 cq->page_count);
9569 bf_set(lpfc_cq_context_event, &cq_create->u.request.context, 1);
9570 bf_set(lpfc_cq_context_valid, &cq_create->u.request.context, 1);
9571 bf_set(lpfc_cq_eq_id, &cq_create->u.request.context, eq->queue_id);
9572 switch (cq->entry_count) {
9573 default:
9574 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9575 "0361 Unsupported CQ count. (%d)\n",
9576 cq->entry_count);
9577 if (cq->entry_count < 256)
9578 return -EINVAL;
9579 /* otherwise default to smallest count (drop through) */
9580 case 256:
9581 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9582 LPFC_CQ_CNT_256);
9583 break;
9584 case 512:
9585 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9586 LPFC_CQ_CNT_512);
9587 break;
9588 case 1024:
9589 bf_set(lpfc_cq_context_count, &cq_create->u.request.context,
9590 LPFC_CQ_CNT_1024);
9591 break;
9592 }
9593 list_for_each_entry(dmabuf, &cq->page_list, list) {
9594 cq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9595 putPaddrLow(dmabuf->phys);
9596 cq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9597 putPaddrHigh(dmabuf->phys);
9598 }
9599 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9600
9601 /* The IOCTL status is embedded in the mailbox subheader. */
9602 shdr = (union lpfc_sli4_cfg_shdr *) &cq_create->header.cfg_shdr;
9603 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9604 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9605 if (shdr_status || shdr_add_status || rc) {
9606 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9607 "2501 CQ_CREATE mailbox failed with "
9608 "status x%x add_status x%x, mbx status x%x\n",
9609 shdr_status, shdr_add_status, rc);
9610 status = -ENXIO;
9611 goto out;
9612 }
9613 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9614 if (cq->queue_id == 0xFFFF) {
9615 status = -ENXIO;
9616 goto out;
9617 }
9618 /* link the cq onto the parent eq child list */
9619 list_add_tail(&cq->list, &eq->child_list);
9620 /* Set up completion queue's type and subtype */
9621 cq->type = type;
9622 cq->subtype = subtype;
9623 cq->queue_id = bf_get(lpfc_mbx_cq_create_q_id, &cq_create->u.response);
9624 cq->host_index = 0;
9625 cq->hba_index = 0;
James Smart4f774512009-05-22 14:52:35 -04009626
James Smart8fa38512009-07-19 10:01:03 -04009627out:
9628 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009629 return status;
9630}
9631
9632/**
James Smart04c68492009-05-22 14:52:52 -04009633 * lpfc_mq_create - Create a mailbox Queue on the HBA
9634 * @phba: HBA structure that indicates port to create a queue on.
9635 * @mq: The queue structure to use to create the mailbox queue.
9636 *
9637 * This function creates a mailbox queue, as detailed in @mq, on a port,
9638 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
9639 *
9640 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9641 * is used to get the entry count and entry size that are necessary to
9642 * determine the number of pages to allocate and use for this queue. This
9643 * function will send the MQ_CREATE mailbox command to the HBA to setup the
9644 * mailbox queue. This function is asynchronous and will wait for the mailbox
9645 * command to finish before continuing.
9646 *
9647 * On success this function will return a zero. If unable to allocate enough
9648 * memory this function will return ENOMEM. If the queue create mailbox command
9649 * fails this function will return ENXIO.
9650 **/
9651uint32_t
9652lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
9653 struct lpfc_queue *cq, uint32_t subtype)
9654{
9655 struct lpfc_mbx_mq_create *mq_create;
9656 struct lpfc_dmabuf *dmabuf;
9657 LPFC_MBOXQ_t *mbox;
9658 int rc, length, status = 0;
9659 uint32_t shdr_status, shdr_add_status;
9660 union lpfc_sli4_cfg_shdr *shdr;
9661
9662 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9663 if (!mbox)
9664 return -ENOMEM;
9665 length = (sizeof(struct lpfc_mbx_mq_create) -
9666 sizeof(struct lpfc_sli4_cfg_mhdr));
9667 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
9668 LPFC_MBOX_OPCODE_MQ_CREATE,
9669 length, LPFC_SLI4_MBX_EMBED);
9670 mq_create = &mbox->u.mqe.un.mq_create;
9671 bf_set(lpfc_mbx_mq_create_num_pages, &mq_create->u.request,
9672 mq->page_count);
9673 bf_set(lpfc_mq_context_cq_id, &mq_create->u.request.context,
9674 cq->queue_id);
9675 bf_set(lpfc_mq_context_valid, &mq_create->u.request.context, 1);
9676 switch (mq->entry_count) {
9677 default:
9678 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9679 "0362 Unsupported MQ count. (%d)\n",
9680 mq->entry_count);
9681 if (mq->entry_count < 16)
9682 return -EINVAL;
9683 /* otherwise default to smallest count (drop through) */
9684 case 16:
9685 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9686 LPFC_MQ_CNT_16);
9687 break;
9688 case 32:
9689 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9690 LPFC_MQ_CNT_32);
9691 break;
9692 case 64:
9693 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9694 LPFC_MQ_CNT_64);
9695 break;
9696 case 128:
9697 bf_set(lpfc_mq_context_count, &mq_create->u.request.context,
9698 LPFC_MQ_CNT_128);
9699 break;
9700 }
9701 list_for_each_entry(dmabuf, &mq->page_list, list) {
9702 mq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9703 putPaddrLow(dmabuf->phys);
9704 mq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9705 putPaddrHigh(dmabuf->phys);
9706 }
9707 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9708 /* The IOCTL status is embedded in the mailbox subheader. */
9709 shdr = (union lpfc_sli4_cfg_shdr *) &mq_create->header.cfg_shdr;
9710 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9711 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9712 if (shdr_status || shdr_add_status || rc) {
9713 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9714 "2502 MQ_CREATE mailbox failed with "
9715 "status x%x add_status x%x, mbx status x%x\n",
9716 shdr_status, shdr_add_status, rc);
9717 status = -ENXIO;
9718 goto out;
9719 }
9720 mq->queue_id = bf_get(lpfc_mbx_mq_create_q_id, &mq_create->u.response);
9721 if (mq->queue_id == 0xFFFF) {
9722 status = -ENXIO;
9723 goto out;
9724 }
9725 mq->type = LPFC_MQ;
9726 mq->subtype = subtype;
9727 mq->host_index = 0;
9728 mq->hba_index = 0;
9729
9730 /* link the mq onto the parent cq child list */
9731 list_add_tail(&mq->list, &cq->child_list);
9732out:
James Smart8fa38512009-07-19 10:01:03 -04009733 mempool_free(mbox, phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -04009734 return status;
9735}
9736
9737/**
James Smart4f774512009-05-22 14:52:35 -04009738 * lpfc_wq_create - Create a Work Queue on the HBA
9739 * @phba: HBA structure that indicates port to create a queue on.
9740 * @wq: The queue structure to use to create the work queue.
9741 * @cq: The completion queue to bind this work queue to.
9742 * @subtype: The subtype of the work queue indicating its functionality.
9743 *
9744 * This function creates a work queue, as detailed in @wq, on a port, described
9745 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
9746 *
9747 * The @phba struct is used to send mailbox command to HBA. The @wq struct
9748 * is used to get the entry count and entry size that are necessary to
9749 * determine the number of pages to allocate and use for this queue. The @cq
9750 * is used to indicate which completion queue to bind this work queue to. This
9751 * function will send the WQ_CREATE mailbox command to the HBA to setup the
9752 * work queue. This function is asynchronous and will wait for the mailbox
9753 * command to finish before continuing.
9754 *
9755 * On success this function will return a zero. If unable to allocate enough
9756 * memory this function will return ENOMEM. If the queue create mailbox command
9757 * fails this function will return ENXIO.
9758 **/
9759uint32_t
9760lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
9761 struct lpfc_queue *cq, uint32_t subtype)
9762{
9763 struct lpfc_mbx_wq_create *wq_create;
9764 struct lpfc_dmabuf *dmabuf;
9765 LPFC_MBOXQ_t *mbox;
9766 int rc, length, status = 0;
9767 uint32_t shdr_status, shdr_add_status;
9768 union lpfc_sli4_cfg_shdr *shdr;
9769
9770 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9771 if (!mbox)
9772 return -ENOMEM;
9773 length = (sizeof(struct lpfc_mbx_wq_create) -
9774 sizeof(struct lpfc_sli4_cfg_mhdr));
9775 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9776 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE,
9777 length, LPFC_SLI4_MBX_EMBED);
9778 wq_create = &mbox->u.mqe.un.wq_create;
9779 bf_set(lpfc_mbx_wq_create_num_pages, &wq_create->u.request,
9780 wq->page_count);
9781 bf_set(lpfc_mbx_wq_create_cq_id, &wq_create->u.request,
9782 cq->queue_id);
9783 list_for_each_entry(dmabuf, &wq->page_list, list) {
9784 wq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9785 putPaddrLow(dmabuf->phys);
9786 wq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9787 putPaddrHigh(dmabuf->phys);
9788 }
9789 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9790 /* The IOCTL status is embedded in the mailbox subheader. */
9791 shdr = (union lpfc_sli4_cfg_shdr *) &wq_create->header.cfg_shdr;
9792 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9793 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9794 if (shdr_status || shdr_add_status || rc) {
9795 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9796 "2503 WQ_CREATE mailbox failed with "
9797 "status x%x add_status x%x, mbx status x%x\n",
9798 shdr_status, shdr_add_status, rc);
9799 status = -ENXIO;
9800 goto out;
9801 }
9802 wq->queue_id = bf_get(lpfc_mbx_wq_create_q_id, &wq_create->u.response);
9803 if (wq->queue_id == 0xFFFF) {
9804 status = -ENXIO;
9805 goto out;
9806 }
9807 wq->type = LPFC_WQ;
9808 wq->subtype = subtype;
9809 wq->host_index = 0;
9810 wq->hba_index = 0;
9811
9812 /* link the wq onto the parent cq child list */
9813 list_add_tail(&wq->list, &cq->child_list);
9814out:
James Smart8fa38512009-07-19 10:01:03 -04009815 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009816 return status;
9817}
9818
9819/**
9820 * lpfc_rq_create - Create a Receive Queue on the HBA
9821 * @phba: HBA structure that indicates port to create a queue on.
9822 * @hrq: The queue structure to use to create the header receive queue.
9823 * @drq: The queue structure to use to create the data receive queue.
9824 * @cq: The completion queue to bind this work queue to.
9825 *
9826 * This function creates a receive buffer queue pair , as detailed in @hrq and
9827 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
9828 * to the HBA.
9829 *
9830 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
9831 * struct is used to get the entry count that is necessary to determine the
9832 * number of pages to use for this queue. The @cq is used to indicate which
9833 * completion queue to bind received buffers that are posted to these queues to.
9834 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
9835 * receive queue pair. This function is asynchronous and will wait for the
9836 * mailbox command to finish before continuing.
9837 *
9838 * On success this function will return a zero. If unable to allocate enough
9839 * memory this function will return ENOMEM. If the queue create mailbox command
9840 * fails this function will return ENXIO.
9841 **/
9842uint32_t
9843lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
9844 struct lpfc_queue *drq, struct lpfc_queue *cq, uint32_t subtype)
9845{
9846 struct lpfc_mbx_rq_create *rq_create;
9847 struct lpfc_dmabuf *dmabuf;
9848 LPFC_MBOXQ_t *mbox;
9849 int rc, length, status = 0;
9850 uint32_t shdr_status, shdr_add_status;
9851 union lpfc_sli4_cfg_shdr *shdr;
9852
9853 if (hrq->entry_count != drq->entry_count)
9854 return -EINVAL;
9855 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
9856 if (!mbox)
9857 return -ENOMEM;
9858 length = (sizeof(struct lpfc_mbx_rq_create) -
9859 sizeof(struct lpfc_sli4_cfg_mhdr));
9860 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9861 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9862 length, LPFC_SLI4_MBX_EMBED);
9863 rq_create = &mbox->u.mqe.un.rq_create;
9864 switch (hrq->entry_count) {
9865 default:
9866 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9867 "2535 Unsupported RQ count. (%d)\n",
9868 hrq->entry_count);
9869 if (hrq->entry_count < 512)
9870 return -EINVAL;
9871 /* otherwise default to smallest count (drop through) */
9872 case 512:
9873 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9874 LPFC_RQ_RING_SIZE_512);
9875 break;
9876 case 1024:
9877 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9878 LPFC_RQ_RING_SIZE_1024);
9879 break;
9880 case 2048:
9881 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9882 LPFC_RQ_RING_SIZE_2048);
9883 break;
9884 case 4096:
9885 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9886 LPFC_RQ_RING_SIZE_4096);
9887 break;
9888 }
9889 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9890 cq->queue_id);
9891 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
9892 hrq->page_count);
9893 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
9894 LPFC_HDR_BUF_SIZE);
9895 list_for_each_entry(dmabuf, &hrq->page_list, list) {
9896 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9897 putPaddrLow(dmabuf->phys);
9898 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9899 putPaddrHigh(dmabuf->phys);
9900 }
9901 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9902 /* The IOCTL status is embedded in the mailbox subheader. */
9903 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
9904 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9905 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9906 if (shdr_status || shdr_add_status || rc) {
9907 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
9908 "2504 RQ_CREATE mailbox failed with "
9909 "status x%x add_status x%x, mbx status x%x\n",
9910 shdr_status, shdr_add_status, rc);
9911 status = -ENXIO;
9912 goto out;
9913 }
9914 hrq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
9915 if (hrq->queue_id == 0xFFFF) {
9916 status = -ENXIO;
9917 goto out;
9918 }
9919 hrq->type = LPFC_HRQ;
9920 hrq->subtype = subtype;
9921 hrq->host_index = 0;
9922 hrq->hba_index = 0;
9923
9924 /* now create the data queue */
9925 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
9926 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE,
9927 length, LPFC_SLI4_MBX_EMBED);
9928 switch (drq->entry_count) {
9929 default:
9930 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
9931 "2536 Unsupported RQ count. (%d)\n",
9932 drq->entry_count);
9933 if (drq->entry_count < 512)
9934 return -EINVAL;
9935 /* otherwise default to smallest count (drop through) */
9936 case 512:
9937 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9938 LPFC_RQ_RING_SIZE_512);
9939 break;
9940 case 1024:
9941 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9942 LPFC_RQ_RING_SIZE_1024);
9943 break;
9944 case 2048:
9945 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9946 LPFC_RQ_RING_SIZE_2048);
9947 break;
9948 case 4096:
9949 bf_set(lpfc_rq_context_rq_size, &rq_create->u.request.context,
9950 LPFC_RQ_RING_SIZE_4096);
9951 break;
9952 }
9953 bf_set(lpfc_rq_context_cq_id, &rq_create->u.request.context,
9954 cq->queue_id);
9955 bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request,
9956 drq->page_count);
9957 bf_set(lpfc_rq_context_buf_size, &rq_create->u.request.context,
9958 LPFC_DATA_BUF_SIZE);
9959 list_for_each_entry(dmabuf, &drq->page_list, list) {
9960 rq_create->u.request.page[dmabuf->buffer_tag].addr_lo =
9961 putPaddrLow(dmabuf->phys);
9962 rq_create->u.request.page[dmabuf->buffer_tag].addr_hi =
9963 putPaddrHigh(dmabuf->phys);
9964 }
9965 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
9966 /* The IOCTL status is embedded in the mailbox subheader. */
9967 shdr = (union lpfc_sli4_cfg_shdr *) &rq_create->header.cfg_shdr;
9968 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
9969 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
9970 if (shdr_status || shdr_add_status || rc) {
9971 status = -ENXIO;
9972 goto out;
9973 }
9974 drq->queue_id = bf_get(lpfc_mbx_rq_create_q_id, &rq_create->u.response);
9975 if (drq->queue_id == 0xFFFF) {
9976 status = -ENXIO;
9977 goto out;
9978 }
9979 drq->type = LPFC_DRQ;
9980 drq->subtype = subtype;
9981 drq->host_index = 0;
9982 drq->hba_index = 0;
9983
9984 /* link the header and data RQs onto the parent cq child list */
9985 list_add_tail(&hrq->list, &cq->child_list);
9986 list_add_tail(&drq->list, &cq->child_list);
9987
9988out:
James Smart8fa38512009-07-19 10:01:03 -04009989 mempool_free(mbox, phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -04009990 return status;
9991}
9992
9993/**
9994 * lpfc_eq_destroy - Destroy an event Queue on the HBA
9995 * @eq: The queue structure associated with the queue to destroy.
9996 *
9997 * This function destroys a queue, as detailed in @eq by sending an mailbox
9998 * command, specific to the type of queue, to the HBA.
9999 *
10000 * The @eq struct is used to get the queue ID of the queue to destroy.
10001 *
10002 * On success this function will return a zero. If the queue destroy mailbox
10003 * command fails this function will return ENXIO.
10004 **/
10005uint32_t
10006lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
10007{
10008 LPFC_MBOXQ_t *mbox;
10009 int rc, length, status = 0;
10010 uint32_t shdr_status, shdr_add_status;
10011 union lpfc_sli4_cfg_shdr *shdr;
10012
10013 if (!eq)
10014 return -ENODEV;
10015 mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
10016 if (!mbox)
10017 return -ENOMEM;
10018 length = (sizeof(struct lpfc_mbx_eq_destroy) -
10019 sizeof(struct lpfc_sli4_cfg_mhdr));
10020 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10021 LPFC_MBOX_OPCODE_EQ_DESTROY,
10022 length, LPFC_SLI4_MBX_EMBED);
10023 bf_set(lpfc_mbx_eq_destroy_q_id, &mbox->u.mqe.un.eq_destroy.u.request,
10024 eq->queue_id);
10025 mbox->vport = eq->phba->pport;
10026 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10027
10028 rc = lpfc_sli_issue_mbox(eq->phba, mbox, MBX_POLL);
10029 /* The IOCTL status is embedded in the mailbox subheader. */
10030 shdr = (union lpfc_sli4_cfg_shdr *)
10031 &mbox->u.mqe.un.eq_destroy.header.cfg_shdr;
10032 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10033 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10034 if (shdr_status || shdr_add_status || rc) {
10035 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10036 "2505 EQ_DESTROY mailbox failed with "
10037 "status x%x add_status x%x, mbx status x%x\n",
10038 shdr_status, shdr_add_status, rc);
10039 status = -ENXIO;
10040 }
10041
10042 /* Remove eq from any list */
10043 list_del_init(&eq->list);
James Smart8fa38512009-07-19 10:01:03 -040010044 mempool_free(mbox, eq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010045 return status;
10046}
10047
10048/**
10049 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10050 * @cq: The queue structure associated with the queue to destroy.
10051 *
10052 * This function destroys a queue, as detailed in @cq by sending an mailbox
10053 * command, specific to the type of queue, to the HBA.
10054 *
10055 * The @cq struct is used to get the queue ID of the queue to destroy.
10056 *
10057 * On success this function will return a zero. If the queue destroy mailbox
10058 * command fails this function will return ENXIO.
10059 **/
10060uint32_t
10061lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
10062{
10063 LPFC_MBOXQ_t *mbox;
10064 int rc, length, status = 0;
10065 uint32_t shdr_status, shdr_add_status;
10066 union lpfc_sli4_cfg_shdr *shdr;
10067
10068 if (!cq)
10069 return -ENODEV;
10070 mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
10071 if (!mbox)
10072 return -ENOMEM;
10073 length = (sizeof(struct lpfc_mbx_cq_destroy) -
10074 sizeof(struct lpfc_sli4_cfg_mhdr));
10075 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10076 LPFC_MBOX_OPCODE_CQ_DESTROY,
10077 length, LPFC_SLI4_MBX_EMBED);
10078 bf_set(lpfc_mbx_cq_destroy_q_id, &mbox->u.mqe.un.cq_destroy.u.request,
10079 cq->queue_id);
10080 mbox->vport = cq->phba->pport;
10081 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10082 rc = lpfc_sli_issue_mbox(cq->phba, mbox, MBX_POLL);
10083 /* The IOCTL status is embedded in the mailbox subheader. */
10084 shdr = (union lpfc_sli4_cfg_shdr *)
10085 &mbox->u.mqe.un.wq_create.header.cfg_shdr;
10086 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10087 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10088 if (shdr_status || shdr_add_status || rc) {
10089 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10090 "2506 CQ_DESTROY mailbox failed with "
10091 "status x%x add_status x%x, mbx status x%x\n",
10092 shdr_status, shdr_add_status, rc);
10093 status = -ENXIO;
10094 }
10095 /* Remove cq from any list */
10096 list_del_init(&cq->list);
James Smart8fa38512009-07-19 10:01:03 -040010097 mempool_free(mbox, cq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010098 return status;
10099}
10100
10101/**
James Smart04c68492009-05-22 14:52:52 -040010102 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10103 * @qm: The queue structure associated with the queue to destroy.
10104 *
10105 * This function destroys a queue, as detailed in @mq by sending an mailbox
10106 * command, specific to the type of queue, to the HBA.
10107 *
10108 * The @mq struct is used to get the queue ID of the queue to destroy.
10109 *
10110 * On success this function will return a zero. If the queue destroy mailbox
10111 * command fails this function will return ENXIO.
10112 **/
10113uint32_t
10114lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
10115{
10116 LPFC_MBOXQ_t *mbox;
10117 int rc, length, status = 0;
10118 uint32_t shdr_status, shdr_add_status;
10119 union lpfc_sli4_cfg_shdr *shdr;
10120
10121 if (!mq)
10122 return -ENODEV;
10123 mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
10124 if (!mbox)
10125 return -ENOMEM;
10126 length = (sizeof(struct lpfc_mbx_mq_destroy) -
10127 sizeof(struct lpfc_sli4_cfg_mhdr));
10128 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_COMMON,
10129 LPFC_MBOX_OPCODE_MQ_DESTROY,
10130 length, LPFC_SLI4_MBX_EMBED);
10131 bf_set(lpfc_mbx_mq_destroy_q_id, &mbox->u.mqe.un.mq_destroy.u.request,
10132 mq->queue_id);
10133 mbox->vport = mq->phba->pport;
10134 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10135 rc = lpfc_sli_issue_mbox(mq->phba, mbox, MBX_POLL);
10136 /* The IOCTL status is embedded in the mailbox subheader. */
10137 shdr = (union lpfc_sli4_cfg_shdr *)
10138 &mbox->u.mqe.un.mq_destroy.header.cfg_shdr;
10139 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10140 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10141 if (shdr_status || shdr_add_status || rc) {
10142 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10143 "2507 MQ_DESTROY mailbox failed with "
10144 "status x%x add_status x%x, mbx status x%x\n",
10145 shdr_status, shdr_add_status, rc);
10146 status = -ENXIO;
10147 }
10148 /* Remove mq from any list */
10149 list_del_init(&mq->list);
James Smart8fa38512009-07-19 10:01:03 -040010150 mempool_free(mbox, mq->phba->mbox_mem_pool);
James Smart04c68492009-05-22 14:52:52 -040010151 return status;
10152}
10153
10154/**
James Smart4f774512009-05-22 14:52:35 -040010155 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10156 * @wq: The queue structure associated with the queue to destroy.
10157 *
10158 * This function destroys a queue, as detailed in @wq by sending an mailbox
10159 * command, specific to the type of queue, to the HBA.
10160 *
10161 * The @wq struct is used to get the queue ID of the queue to destroy.
10162 *
10163 * On success this function will return a zero. If the queue destroy mailbox
10164 * command fails this function will return ENXIO.
10165 **/
10166uint32_t
10167lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
10168{
10169 LPFC_MBOXQ_t *mbox;
10170 int rc, length, status = 0;
10171 uint32_t shdr_status, shdr_add_status;
10172 union lpfc_sli4_cfg_shdr *shdr;
10173
10174 if (!wq)
10175 return -ENODEV;
10176 mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
10177 if (!mbox)
10178 return -ENOMEM;
10179 length = (sizeof(struct lpfc_mbx_wq_destroy) -
10180 sizeof(struct lpfc_sli4_cfg_mhdr));
10181 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10182 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY,
10183 length, LPFC_SLI4_MBX_EMBED);
10184 bf_set(lpfc_mbx_wq_destroy_q_id, &mbox->u.mqe.un.wq_destroy.u.request,
10185 wq->queue_id);
10186 mbox->vport = wq->phba->pport;
10187 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10188 rc = lpfc_sli_issue_mbox(wq->phba, mbox, MBX_POLL);
10189 shdr = (union lpfc_sli4_cfg_shdr *)
10190 &mbox->u.mqe.un.wq_destroy.header.cfg_shdr;
10191 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10192 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10193 if (shdr_status || shdr_add_status || rc) {
10194 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10195 "2508 WQ_DESTROY mailbox failed with "
10196 "status x%x add_status x%x, mbx status x%x\n",
10197 shdr_status, shdr_add_status, rc);
10198 status = -ENXIO;
10199 }
10200 /* Remove wq from any list */
10201 list_del_init(&wq->list);
James Smart8fa38512009-07-19 10:01:03 -040010202 mempool_free(mbox, wq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010203 return status;
10204}
10205
10206/**
10207 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10208 * @rq: The queue structure associated with the queue to destroy.
10209 *
10210 * This function destroys a queue, as detailed in @rq by sending an mailbox
10211 * command, specific to the type of queue, to the HBA.
10212 *
10213 * The @rq struct is used to get the queue ID of the queue to destroy.
10214 *
10215 * On success this function will return a zero. If the queue destroy mailbox
10216 * command fails this function will return ENXIO.
10217 **/
10218uint32_t
10219lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
10220 struct lpfc_queue *drq)
10221{
10222 LPFC_MBOXQ_t *mbox;
10223 int rc, length, status = 0;
10224 uint32_t shdr_status, shdr_add_status;
10225 union lpfc_sli4_cfg_shdr *shdr;
10226
10227 if (!hrq || !drq)
10228 return -ENODEV;
10229 mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
10230 if (!mbox)
10231 return -ENOMEM;
10232 length = (sizeof(struct lpfc_mbx_rq_destroy) -
10233 sizeof(struct mbox_header));
10234 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10235 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY,
10236 length, LPFC_SLI4_MBX_EMBED);
10237 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10238 hrq->queue_id);
10239 mbox->vport = hrq->phba->pport;
10240 mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
10241 rc = lpfc_sli_issue_mbox(hrq->phba, mbox, MBX_POLL);
10242 /* The IOCTL status is embedded in the mailbox subheader. */
10243 shdr = (union lpfc_sli4_cfg_shdr *)
10244 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10245 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10246 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10247 if (shdr_status || shdr_add_status || rc) {
10248 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10249 "2509 RQ_DESTROY mailbox failed with "
10250 "status x%x add_status x%x, mbx status x%x\n",
10251 shdr_status, shdr_add_status, rc);
10252 if (rc != MBX_TIMEOUT)
10253 mempool_free(mbox, hrq->phba->mbox_mem_pool);
10254 return -ENXIO;
10255 }
10256 bf_set(lpfc_mbx_rq_destroy_q_id, &mbox->u.mqe.un.rq_destroy.u.request,
10257 drq->queue_id);
10258 rc = lpfc_sli_issue_mbox(drq->phba, mbox, MBX_POLL);
10259 shdr = (union lpfc_sli4_cfg_shdr *)
10260 &mbox->u.mqe.un.rq_destroy.header.cfg_shdr;
10261 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10262 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10263 if (shdr_status || shdr_add_status || rc) {
10264 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10265 "2510 RQ_DESTROY mailbox failed with "
10266 "status x%x add_status x%x, mbx status x%x\n",
10267 shdr_status, shdr_add_status, rc);
10268 status = -ENXIO;
10269 }
10270 list_del_init(&hrq->list);
10271 list_del_init(&drq->list);
James Smart8fa38512009-07-19 10:01:03 -040010272 mempool_free(mbox, hrq->phba->mbox_mem_pool);
James Smart4f774512009-05-22 14:52:35 -040010273 return status;
10274}
10275
10276/**
10277 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10278 * @phba: The virtual port for which this call being executed.
10279 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10280 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10281 * @xritag: the xritag that ties this io to the SGL pages.
10282 *
10283 * This routine will post the sgl pages for the IO that has the xritag
10284 * that is in the iocbq structure. The xritag is assigned during iocbq
10285 * creation and persists for as long as the driver is loaded.
10286 * if the caller has fewer than 256 scatter gather segments to map then
10287 * pdma_phys_addr1 should be 0.
10288 * If the caller needs to map more than 256 scatter gather segment then
10289 * pdma_phys_addr1 should be a valid physical address.
10290 * physical address for SGLs must be 64 byte aligned.
10291 * If you are going to map 2 SGL's then the first one must have 256 entries
10292 * the second sgl can have between 1 and 256 entries.
10293 *
10294 * Return codes:
10295 * 0 - Success
10296 * -ENXIO, -ENOMEM - Failure
10297 **/
10298int
10299lpfc_sli4_post_sgl(struct lpfc_hba *phba,
10300 dma_addr_t pdma_phys_addr0,
10301 dma_addr_t pdma_phys_addr1,
10302 uint16_t xritag)
10303{
10304 struct lpfc_mbx_post_sgl_pages *post_sgl_pages;
10305 LPFC_MBOXQ_t *mbox;
10306 int rc;
10307 uint32_t shdr_status, shdr_add_status;
10308 union lpfc_sli4_cfg_shdr *shdr;
10309
10310 if (xritag == NO_XRI) {
10311 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10312 "0364 Invalid param:\n");
10313 return -EINVAL;
10314 }
10315
10316 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10317 if (!mbox)
10318 return -ENOMEM;
10319
10320 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10321 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES,
10322 sizeof(struct lpfc_mbx_post_sgl_pages) -
10323 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
10324
10325 post_sgl_pages = (struct lpfc_mbx_post_sgl_pages *)
10326 &mbox->u.mqe.un.post_sgl_pages;
10327 bf_set(lpfc_post_sgl_pages_xri, post_sgl_pages, xritag);
10328 bf_set(lpfc_post_sgl_pages_xricnt, post_sgl_pages, 1);
10329
10330 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_lo =
10331 cpu_to_le32(putPaddrLow(pdma_phys_addr0));
10332 post_sgl_pages->sgl_pg_pairs[0].sgl_pg0_addr_hi =
10333 cpu_to_le32(putPaddrHigh(pdma_phys_addr0));
10334
10335 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_lo =
10336 cpu_to_le32(putPaddrLow(pdma_phys_addr1));
10337 post_sgl_pages->sgl_pg_pairs[0].sgl_pg1_addr_hi =
10338 cpu_to_le32(putPaddrHigh(pdma_phys_addr1));
10339 if (!phba->sli4_hba.intr_enable)
10340 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10341 else
10342 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10343 /* The IOCTL status is embedded in the mailbox subheader. */
10344 shdr = (union lpfc_sli4_cfg_shdr *) &post_sgl_pages->header.cfg_shdr;
10345 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10346 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10347 if (rc != MBX_TIMEOUT)
10348 mempool_free(mbox, phba->mbox_mem_pool);
10349 if (shdr_status || shdr_add_status || rc) {
10350 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10351 "2511 POST_SGL mailbox failed with "
10352 "status x%x add_status x%x, mbx status x%x\n",
10353 shdr_status, shdr_add_status, rc);
10354 rc = -ENXIO;
10355 }
10356 return 0;
10357}
10358/**
10359 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10360 * @phba: The virtual port for which this call being executed.
10361 *
10362 * This routine will remove all of the sgl pages registered with the hba.
10363 *
10364 * Return codes:
10365 * 0 - Success
10366 * -ENXIO, -ENOMEM - Failure
10367 **/
10368int
10369lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba *phba)
10370{
10371 LPFC_MBOXQ_t *mbox;
10372 int rc;
10373 uint32_t shdr_status, shdr_add_status;
10374 union lpfc_sli4_cfg_shdr *shdr;
10375
10376 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10377 if (!mbox)
10378 return -ENOMEM;
10379
10380 lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10381 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES, 0,
10382 LPFC_SLI4_MBX_EMBED);
10383 if (!phba->sli4_hba.intr_enable)
10384 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10385 else
10386 rc = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
10387 /* The IOCTL status is embedded in the mailbox subheader. */
10388 shdr = (union lpfc_sli4_cfg_shdr *)
10389 &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
10390 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10391 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10392 if (rc != MBX_TIMEOUT)
10393 mempool_free(mbox, phba->mbox_mem_pool);
10394 if (shdr_status || shdr_add_status || rc) {
10395 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10396 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10397 "status x%x add_status x%x, mbx status x%x\n",
10398 shdr_status, shdr_add_status, rc);
10399 rc = -ENXIO;
10400 }
10401 return rc;
10402}
10403
10404/**
10405 * lpfc_sli4_next_xritag - Get an xritag for the io
10406 * @phba: Pointer to HBA context object.
10407 *
10408 * This function gets an xritag for the iocb. If there is no unused xritag
10409 * it will return 0xffff.
10410 * The function returns the allocated xritag if successful, else returns zero.
10411 * Zero is not a valid xritag.
10412 * The caller is not required to hold any lock.
10413 **/
10414uint16_t
10415lpfc_sli4_next_xritag(struct lpfc_hba *phba)
10416{
10417 uint16_t xritag;
10418
10419 spin_lock_irq(&phba->hbalock);
10420 xritag = phba->sli4_hba.next_xri;
10421 if ((xritag != (uint16_t) -1) && xritag <
10422 (phba->sli4_hba.max_cfg_param.max_xri
10423 + phba->sli4_hba.max_cfg_param.xri_base)) {
10424 phba->sli4_hba.next_xri++;
10425 phba->sli4_hba.max_cfg_param.xri_used++;
10426 spin_unlock_irq(&phba->hbalock);
10427 return xritag;
10428 }
10429 spin_unlock_irq(&phba->hbalock);
10430
10431 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10432 "2004 Failed to allocate XRI.last XRITAG is %d"
10433 " Max XRI is %d, Used XRI is %d\n",
10434 phba->sli4_hba.next_xri,
10435 phba->sli4_hba.max_cfg_param.max_xri,
10436 phba->sli4_hba.max_cfg_param.xri_used);
10437 return -1;
10438}
10439
10440/**
10441 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10442 * @phba: pointer to lpfc hba data structure.
10443 *
10444 * This routine is invoked to post a block of driver's sgl pages to the
10445 * HBA using non-embedded mailbox command. No Lock is held. This routine
10446 * is only called when the driver is loading and after all IO has been
10447 * stopped.
10448 **/
10449int
10450lpfc_sli4_post_sgl_list(struct lpfc_hba *phba)
10451{
10452 struct lpfc_sglq *sglq_entry;
10453 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10454 struct sgl_page_pairs *sgl_pg_pairs;
10455 void *viraddr;
10456 LPFC_MBOXQ_t *mbox;
10457 uint32_t reqlen, alloclen, pg_pairs;
10458 uint32_t mbox_tmo;
10459 uint16_t xritag_start = 0;
10460 int els_xri_cnt, rc = 0;
10461 uint32_t shdr_status, shdr_add_status;
10462 union lpfc_sli4_cfg_shdr *shdr;
10463
10464 /* The number of sgls to be posted */
10465 els_xri_cnt = lpfc_sli4_get_els_iocb_cnt(phba);
10466
10467 reqlen = els_xri_cnt * sizeof(struct sgl_page_pairs) +
10468 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10469 if (reqlen > PAGE_SIZE) {
10470 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10471 "2559 Block sgl registration required DMA "
10472 "size (%d) great than a page\n", reqlen);
10473 return -ENOMEM;
10474 }
10475 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10476 if (!mbox) {
10477 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10478 "2560 Failed to allocate mbox cmd memory\n");
10479 return -ENOMEM;
10480 }
10481
10482 /* Allocate DMA memory and set up the non-embedded mailbox command */
10483 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10484 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10485 LPFC_SLI4_MBX_NEMBED);
10486
10487 if (alloclen < reqlen) {
10488 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10489 "0285 Allocated DMA memory size (%d) is "
10490 "less than the requested DMA memory "
10491 "size (%d)\n", alloclen, reqlen);
10492 lpfc_sli4_mbox_cmd_free(phba, mbox);
10493 return -ENOMEM;
10494 }
10495
10496 /* Get the first SGE entry from the non-embedded DMA memory */
10497 if (unlikely(!mbox->sge_array)) {
10498 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
10499 "2525 Failed to get the non-embedded SGE "
10500 "virtual address\n");
10501 lpfc_sli4_mbox_cmd_free(phba, mbox);
10502 return -ENOMEM;
10503 }
10504 viraddr = mbox->sge_array->addr[0];
10505
10506 /* Set up the SGL pages in the non-embedded DMA pages */
10507 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10508 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10509
10510 for (pg_pairs = 0; pg_pairs < els_xri_cnt; pg_pairs++) {
10511 sglq_entry = phba->sli4_hba.lpfc_els_sgl_array[pg_pairs];
10512 /* Set up the sge entry */
10513 sgl_pg_pairs->sgl_pg0_addr_lo =
10514 cpu_to_le32(putPaddrLow(sglq_entry->phys));
10515 sgl_pg_pairs->sgl_pg0_addr_hi =
10516 cpu_to_le32(putPaddrHigh(sglq_entry->phys));
10517 sgl_pg_pairs->sgl_pg1_addr_lo =
10518 cpu_to_le32(putPaddrLow(0));
10519 sgl_pg_pairs->sgl_pg1_addr_hi =
10520 cpu_to_le32(putPaddrHigh(0));
10521 /* Keep the first xritag on the list */
10522 if (pg_pairs == 0)
10523 xritag_start = sglq_entry->sli4_xritag;
10524 sgl_pg_pairs++;
10525 }
10526 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10527 pg_pairs = (pg_pairs > 0) ? (pg_pairs - 1) : pg_pairs;
10528 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10529 /* Perform endian conversion if necessary */
10530 sgl->word0 = cpu_to_le32(sgl->word0);
10531
10532 if (!phba->sli4_hba.intr_enable)
10533 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10534 else {
10535 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10536 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10537 }
10538 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10539 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10540 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10541 if (rc != MBX_TIMEOUT)
10542 lpfc_sli4_mbox_cmd_free(phba, mbox);
10543 if (shdr_status || shdr_add_status || rc) {
10544 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10545 "2513 POST_SGL_BLOCK mailbox command failed "
10546 "status x%x add_status x%x mbx status x%x\n",
10547 shdr_status, shdr_add_status, rc);
10548 rc = -ENXIO;
10549 }
10550 return rc;
10551}
10552
10553/**
10554 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10555 * @phba: pointer to lpfc hba data structure.
10556 * @sblist: pointer to scsi buffer list.
10557 * @count: number of scsi buffers on the list.
10558 *
10559 * This routine is invoked to post a block of @count scsi sgl pages from a
10560 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10561 * No Lock is held.
10562 *
10563 **/
10564int
10565lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *phba, struct list_head *sblist,
10566 int cnt)
10567{
10568 struct lpfc_scsi_buf *psb;
10569 struct lpfc_mbx_post_uembed_sgl_page1 *sgl;
10570 struct sgl_page_pairs *sgl_pg_pairs;
10571 void *viraddr;
10572 LPFC_MBOXQ_t *mbox;
10573 uint32_t reqlen, alloclen, pg_pairs;
10574 uint32_t mbox_tmo;
10575 uint16_t xritag_start = 0;
10576 int rc = 0;
10577 uint32_t shdr_status, shdr_add_status;
10578 dma_addr_t pdma_phys_bpl1;
10579 union lpfc_sli4_cfg_shdr *shdr;
10580
10581 /* Calculate the requested length of the dma memory */
10582 reqlen = cnt * sizeof(struct sgl_page_pairs) +
10583 sizeof(union lpfc_sli4_cfg_shdr) + sizeof(uint32_t);
10584 if (reqlen > PAGE_SIZE) {
10585 lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
10586 "0217 Block sgl registration required DMA "
10587 "size (%d) great than a page\n", reqlen);
10588 return -ENOMEM;
10589 }
10590 mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
10591 if (!mbox) {
10592 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10593 "0283 Failed to allocate mbox cmd memory\n");
10594 return -ENOMEM;
10595 }
10596
10597 /* Allocate DMA memory and set up the non-embedded mailbox command */
10598 alloclen = lpfc_sli4_config(phba, mbox, LPFC_MBOX_SUBSYSTEM_FCOE,
10599 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES, reqlen,
10600 LPFC_SLI4_MBX_NEMBED);
10601
10602 if (alloclen < reqlen) {
10603 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
10604 "2561 Allocated DMA memory size (%d) is "
10605 "less than the requested DMA memory "
10606 "size (%d)\n", alloclen, reqlen);
10607 lpfc_sli4_mbox_cmd_free(phba, mbox);
10608 return -ENOMEM;
10609 }
10610
10611 /* Get the first SGE entry from the non-embedded DMA memory */
10612 if (unlikely(!mbox->sge_array)) {
10613 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
10614 "2565 Failed to get the non-embedded SGE "
10615 "virtual address\n");
10616 lpfc_sli4_mbox_cmd_free(phba, mbox);
10617 return -ENOMEM;
10618 }
10619 viraddr = mbox->sge_array->addr[0];
10620
10621 /* Set up the SGL pages in the non-embedded DMA pages */
10622 sgl = (struct lpfc_mbx_post_uembed_sgl_page1 *)viraddr;
10623 sgl_pg_pairs = &sgl->sgl_pg_pairs;
10624
10625 pg_pairs = 0;
10626 list_for_each_entry(psb, sblist, list) {
10627 /* Set up the sge entry */
10628 sgl_pg_pairs->sgl_pg0_addr_lo =
10629 cpu_to_le32(putPaddrLow(psb->dma_phys_bpl));
10630 sgl_pg_pairs->sgl_pg0_addr_hi =
10631 cpu_to_le32(putPaddrHigh(psb->dma_phys_bpl));
10632 if (phba->cfg_sg_dma_buf_size > SGL_PAGE_SIZE)
10633 pdma_phys_bpl1 = psb->dma_phys_bpl + SGL_PAGE_SIZE;
10634 else
10635 pdma_phys_bpl1 = 0;
10636 sgl_pg_pairs->sgl_pg1_addr_lo =
10637 cpu_to_le32(putPaddrLow(pdma_phys_bpl1));
10638 sgl_pg_pairs->sgl_pg1_addr_hi =
10639 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1));
10640 /* Keep the first xritag on the list */
10641 if (pg_pairs == 0)
10642 xritag_start = psb->cur_iocbq.sli4_xritag;
10643 sgl_pg_pairs++;
10644 pg_pairs++;
10645 }
10646 bf_set(lpfc_post_sgl_pages_xri, sgl, xritag_start);
10647 bf_set(lpfc_post_sgl_pages_xricnt, sgl, pg_pairs);
10648 /* Perform endian conversion if necessary */
10649 sgl->word0 = cpu_to_le32(sgl->word0);
10650
10651 if (!phba->sli4_hba.intr_enable)
10652 rc = lpfc_sli_issue_mbox(phba, mbox, MBX_POLL);
10653 else {
10654 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
10655 rc = lpfc_sli_issue_mbox_wait(phba, mbox, mbox_tmo);
10656 }
10657 shdr = (union lpfc_sli4_cfg_shdr *) &sgl->cfg_shdr;
10658 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
10659 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
10660 if (rc != MBX_TIMEOUT)
10661 lpfc_sli4_mbox_cmd_free(phba, mbox);
10662 if (shdr_status || shdr_add_status || rc) {
10663 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
10664 "2564 POST_SGL_BLOCK mailbox command failed "
10665 "status x%x add_status x%x mbx status x%x\n",
10666 shdr_status, shdr_add_status, rc);
10667 rc = -ENXIO;
10668 }
10669 return rc;
10670}
10671
10672/**
10673 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
10674 * @phba: pointer to lpfc_hba struct that the frame was received on
10675 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10676 *
10677 * This function checks the fields in the @fc_hdr to see if the FC frame is a
10678 * valid type of frame that the LPFC driver will handle. This function will
10679 * return a zero if the frame is a valid frame or a non zero value when the
10680 * frame does not pass the check.
10681 **/
10682static int
10683lpfc_fc_frame_check(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr)
10684{
10685 char *rctl_names[] = FC_RCTL_NAMES_INIT;
10686 char *type_names[] = FC_TYPE_NAMES_INIT;
10687 struct fc_vft_header *fc_vft_hdr;
10688
10689 switch (fc_hdr->fh_r_ctl) {
10690 case FC_RCTL_DD_UNCAT: /* uncategorized information */
10691 case FC_RCTL_DD_SOL_DATA: /* solicited data */
10692 case FC_RCTL_DD_UNSOL_CTL: /* unsolicited control */
10693 case FC_RCTL_DD_SOL_CTL: /* solicited control or reply */
10694 case FC_RCTL_DD_UNSOL_DATA: /* unsolicited data */
10695 case FC_RCTL_DD_DATA_DESC: /* data descriptor */
10696 case FC_RCTL_DD_UNSOL_CMD: /* unsolicited command */
10697 case FC_RCTL_DD_CMD_STATUS: /* command status */
10698 case FC_RCTL_ELS_REQ: /* extended link services request */
10699 case FC_RCTL_ELS_REP: /* extended link services reply */
10700 case FC_RCTL_ELS4_REQ: /* FC-4 ELS request */
10701 case FC_RCTL_ELS4_REP: /* FC-4 ELS reply */
10702 case FC_RCTL_BA_NOP: /* basic link service NOP */
10703 case FC_RCTL_BA_ABTS: /* basic link service abort */
10704 case FC_RCTL_BA_RMC: /* remove connection */
10705 case FC_RCTL_BA_ACC: /* basic accept */
10706 case FC_RCTL_BA_RJT: /* basic reject */
10707 case FC_RCTL_BA_PRMT:
10708 case FC_RCTL_ACK_1: /* acknowledge_1 */
10709 case FC_RCTL_ACK_0: /* acknowledge_0 */
10710 case FC_RCTL_P_RJT: /* port reject */
10711 case FC_RCTL_F_RJT: /* fabric reject */
10712 case FC_RCTL_P_BSY: /* port busy */
10713 case FC_RCTL_F_BSY: /* fabric busy to data frame */
10714 case FC_RCTL_F_BSYL: /* fabric busy to link control frame */
10715 case FC_RCTL_LCR: /* link credit reset */
10716 case FC_RCTL_END: /* end */
10717 break;
10718 case FC_RCTL_VFTH: /* Virtual Fabric tagging Header */
10719 fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10720 fc_hdr = &((struct fc_frame_header *)fc_vft_hdr)[1];
10721 return lpfc_fc_frame_check(phba, fc_hdr);
10722 default:
10723 goto drop;
10724 }
10725 switch (fc_hdr->fh_type) {
10726 case FC_TYPE_BLS:
10727 case FC_TYPE_ELS:
10728 case FC_TYPE_FCP:
10729 case FC_TYPE_CT:
10730 break;
10731 case FC_TYPE_IP:
10732 case FC_TYPE_ILS:
10733 default:
10734 goto drop;
10735 }
10736 lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
10737 "2538 Received frame rctl:%s type:%s\n",
10738 rctl_names[fc_hdr->fh_r_ctl],
10739 type_names[fc_hdr->fh_type]);
10740 return 0;
10741drop:
10742 lpfc_printf_log(phba, KERN_WARNING, LOG_ELS,
10743 "2539 Dropped frame rctl:%s type:%s\n",
10744 rctl_names[fc_hdr->fh_r_ctl],
10745 type_names[fc_hdr->fh_type]);
10746 return 1;
10747}
10748
10749/**
10750 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
10751 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10752 *
10753 * This function processes the FC header to retrieve the VFI from the VF
10754 * header, if one exists. This function will return the VFI if one exists
10755 * or 0 if no VSAN Header exists.
10756 **/
10757static uint32_t
10758lpfc_fc_hdr_get_vfi(struct fc_frame_header *fc_hdr)
10759{
10760 struct fc_vft_header *fc_vft_hdr = (struct fc_vft_header *)fc_hdr;
10761
10762 if (fc_hdr->fh_r_ctl != FC_RCTL_VFTH)
10763 return 0;
10764 return bf_get(fc_vft_hdr_vf_id, fc_vft_hdr);
10765}
10766
10767/**
10768 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
10769 * @phba: Pointer to the HBA structure to search for the vport on
10770 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
10771 * @fcfi: The FC Fabric ID that the frame came from
10772 *
10773 * This function searches the @phba for a vport that matches the content of the
10774 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
10775 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
10776 * returns the matching vport pointer or NULL if unable to match frame to a
10777 * vport.
10778 **/
10779static struct lpfc_vport *
10780lpfc_fc_frame_to_vport(struct lpfc_hba *phba, struct fc_frame_header *fc_hdr,
10781 uint16_t fcfi)
10782{
10783 struct lpfc_vport **vports;
10784 struct lpfc_vport *vport = NULL;
10785 int i;
10786 uint32_t did = (fc_hdr->fh_d_id[0] << 16 |
10787 fc_hdr->fh_d_id[1] << 8 |
10788 fc_hdr->fh_d_id[2]);
10789
10790 vports = lpfc_create_vport_work_array(phba);
10791 if (vports != NULL)
10792 for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
10793 if (phba->fcf.fcfi == fcfi &&
10794 vports[i]->vfi == lpfc_fc_hdr_get_vfi(fc_hdr) &&
10795 vports[i]->fc_myDID == did) {
10796 vport = vports[i];
10797 break;
10798 }
10799 }
10800 lpfc_destroy_vport_work_array(phba, vports);
10801 return vport;
10802}
10803
10804/**
10805 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
10806 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
10807 *
10808 * This function searches through the existing incomplete sequences that have
10809 * been sent to this @vport. If the frame matches one of the incomplete
10810 * sequences then the dbuf in the @dmabuf is added to the list of frames that
10811 * make up that sequence. If no sequence is found that matches this frame then
10812 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
10813 * This function returns a pointer to the first dmabuf in the sequence list that
10814 * the frame was linked to.
10815 **/
10816static struct hbq_dmabuf *
10817lpfc_fc_frame_add(struct lpfc_vport *vport, struct hbq_dmabuf *dmabuf)
10818{
10819 struct fc_frame_header *new_hdr;
10820 struct fc_frame_header *temp_hdr;
10821 struct lpfc_dmabuf *d_buf;
10822 struct lpfc_dmabuf *h_buf;
10823 struct hbq_dmabuf *seq_dmabuf = NULL;
10824 struct hbq_dmabuf *temp_dmabuf = NULL;
10825
10826 new_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
10827 /* Use the hdr_buf to find the sequence that this frame belongs to */
10828 list_for_each_entry(h_buf, &vport->rcv_buffer_list, list) {
10829 temp_hdr = (struct fc_frame_header *)h_buf->virt;
10830 if ((temp_hdr->fh_seq_id != new_hdr->fh_seq_id) ||
10831 (temp_hdr->fh_ox_id != new_hdr->fh_ox_id) ||
10832 (memcmp(&temp_hdr->fh_s_id, &new_hdr->fh_s_id, 3)))
10833 continue;
10834 /* found a pending sequence that matches this frame */
10835 seq_dmabuf = container_of(h_buf, struct hbq_dmabuf, hbuf);
10836 break;
10837 }
10838 if (!seq_dmabuf) {
10839 /*
10840 * This indicates first frame received for this sequence.
10841 * Queue the buffer on the vport's rcv_buffer_list.
10842 */
10843 list_add_tail(&dmabuf->hbuf.list, &vport->rcv_buffer_list);
10844 return dmabuf;
10845 }
10846 temp_hdr = seq_dmabuf->hbuf.virt;
10847 if (new_hdr->fh_seq_cnt < temp_hdr->fh_seq_cnt) {
10848 list_add(&seq_dmabuf->dbuf.list, &dmabuf->dbuf.list);
10849 return dmabuf;
10850 }
10851 /* find the correct place in the sequence to insert this frame */
10852 list_for_each_entry_reverse(d_buf, &seq_dmabuf->dbuf.list, list) {
10853 temp_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
10854 temp_hdr = (struct fc_frame_header *)temp_dmabuf->hbuf.virt;
10855 /*
10856 * If the frame's sequence count is greater than the frame on
10857 * the list then insert the frame right after this frame
10858 */
10859 if (new_hdr->fh_seq_cnt > temp_hdr->fh_seq_cnt) {
10860 list_add(&dmabuf->dbuf.list, &temp_dmabuf->dbuf.list);
10861 return seq_dmabuf;
10862 }
10863 }
10864 return NULL;
10865}
10866
10867/**
10868 * lpfc_seq_complete - Indicates if a sequence is complete
10869 * @dmabuf: pointer to a dmabuf that describes the FC sequence
10870 *
10871 * This function checks the sequence, starting with the frame described by
10872 * @dmabuf, to see if all the frames associated with this sequence are present.
10873 * the frames associated with this sequence are linked to the @dmabuf using the
10874 * dbuf list. This function looks for two major things. 1) That the first frame
10875 * has a sequence count of zero. 2) There is a frame with last frame of sequence
10876 * set. 3) That there are no holes in the sequence count. The function will
10877 * return 1 when the sequence is complete, otherwise it will return 0.
10878 **/
10879static int
10880lpfc_seq_complete(struct hbq_dmabuf *dmabuf)
10881{
10882 struct fc_frame_header *hdr;
10883 struct lpfc_dmabuf *d_buf;
10884 struct hbq_dmabuf *seq_dmabuf;
10885 uint32_t fctl;
10886 int seq_count = 0;
10887
10888 hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
10889 /* make sure first fame of sequence has a sequence count of zero */
10890 if (hdr->fh_seq_cnt != seq_count)
10891 return 0;
10892 fctl = (hdr->fh_f_ctl[0] << 16 |
10893 hdr->fh_f_ctl[1] << 8 |
10894 hdr->fh_f_ctl[2]);
10895 /* If last frame of sequence we can return success. */
10896 if (fctl & FC_FC_END_SEQ)
10897 return 1;
10898 list_for_each_entry(d_buf, &dmabuf->dbuf.list, list) {
10899 seq_dmabuf = container_of(d_buf, struct hbq_dmabuf, dbuf);
10900 hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
10901 /* If there is a hole in the sequence count then fail. */
10902 if (++seq_count != hdr->fh_seq_cnt)
10903 return 0;
10904 fctl = (hdr->fh_f_ctl[0] << 16 |
10905 hdr->fh_f_ctl[1] << 8 |
10906 hdr->fh_f_ctl[2]);
10907 /* If last frame of sequence we can return success. */
10908 if (fctl & FC_FC_END_SEQ)
10909 return 1;
10910 }
10911 return 0;
10912}
10913
10914/**
10915 * lpfc_prep_seq - Prep sequence for ULP processing
10916 * @vport: Pointer to the vport on which this sequence was received
10917 * @dmabuf: pointer to a dmabuf that describes the FC sequence
10918 *
10919 * This function takes a sequence, described by a list of frames, and creates
10920 * a list of iocbq structures to describe the sequence. This iocbq list will be
10921 * used to issue to the generic unsolicited sequence handler. This routine
10922 * returns a pointer to the first iocbq in the list. If the function is unable
10923 * to allocate an iocbq then it throw out the received frames that were not
10924 * able to be described and return a pointer to the first iocbq. If unable to
10925 * allocate any iocbqs (including the first) this function will return NULL.
10926 **/
10927static struct lpfc_iocbq *
10928lpfc_prep_seq(struct lpfc_vport *vport, struct hbq_dmabuf *seq_dmabuf)
10929{
10930 struct lpfc_dmabuf *d_buf, *n_buf;
10931 struct lpfc_iocbq *first_iocbq, *iocbq;
10932 struct fc_frame_header *fc_hdr;
10933 uint32_t sid;
10934
10935 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
10936 /* remove from receive buffer list */
10937 list_del_init(&seq_dmabuf->hbuf.list);
10938 /* get the Remote Port's SID */
10939 sid = (fc_hdr->fh_s_id[0] << 16 |
10940 fc_hdr->fh_s_id[1] << 8 |
10941 fc_hdr->fh_s_id[2]);
10942 /* Get an iocbq struct to fill in. */
10943 first_iocbq = lpfc_sli_get_iocbq(vport->phba);
10944 if (first_iocbq) {
10945 /* Initialize the first IOCB. */
James Smart8fa38512009-07-19 10:01:03 -040010946 first_iocbq->iocb.unsli3.rcvsli3.acc_len = 0;
James Smart4f774512009-05-22 14:52:35 -040010947 first_iocbq->iocb.ulpStatus = IOSTAT_SUCCESS;
10948 first_iocbq->iocb.ulpCommand = CMD_IOCB_RCV_SEQ64_CX;
10949 first_iocbq->iocb.ulpContext = be16_to_cpu(fc_hdr->fh_ox_id);
10950 first_iocbq->iocb.unsli3.rcvsli3.vpi =
10951 vport->vpi + vport->phba->vpi_base;
10952 /* put the first buffer into the first IOCBq */
10953 first_iocbq->context2 = &seq_dmabuf->dbuf;
10954 first_iocbq->context3 = NULL;
10955 first_iocbq->iocb.ulpBdeCount = 1;
10956 first_iocbq->iocb.un.cont64[0].tus.f.bdeSize =
10957 LPFC_DATA_BUF_SIZE;
10958 first_iocbq->iocb.un.rcvels.remoteID = sid;
James Smart8fa38512009-07-19 10:01:03 -040010959 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
10960 bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
James Smart4f774512009-05-22 14:52:35 -040010961 }
10962 iocbq = first_iocbq;
10963 /*
10964 * Each IOCBq can have two Buffers assigned, so go through the list
10965 * of buffers for this sequence and save two buffers in each IOCBq
10966 */
10967 list_for_each_entry_safe(d_buf, n_buf, &seq_dmabuf->dbuf.list, list) {
10968 if (!iocbq) {
10969 lpfc_in_buf_free(vport->phba, d_buf);
10970 continue;
10971 }
10972 if (!iocbq->context3) {
10973 iocbq->context3 = d_buf;
10974 iocbq->iocb.ulpBdeCount++;
10975 iocbq->iocb.unsli3.rcvsli3.bde2.tus.f.bdeSize =
10976 LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040010977 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
10978 bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
James Smart4f774512009-05-22 14:52:35 -040010979 } else {
10980 iocbq = lpfc_sli_get_iocbq(vport->phba);
10981 if (!iocbq) {
10982 if (first_iocbq) {
10983 first_iocbq->iocb.ulpStatus =
10984 IOSTAT_FCP_RSP_ERROR;
10985 first_iocbq->iocb.un.ulpWord[4] =
10986 IOERR_NO_RESOURCES;
10987 }
10988 lpfc_in_buf_free(vport->phba, d_buf);
10989 continue;
10990 }
10991 iocbq->context2 = d_buf;
10992 iocbq->context3 = NULL;
10993 iocbq->iocb.ulpBdeCount = 1;
10994 iocbq->iocb.un.cont64[0].tus.f.bdeSize =
10995 LPFC_DATA_BUF_SIZE;
James Smart8fa38512009-07-19 10:01:03 -040010996 first_iocbq->iocb.unsli3.rcvsli3.acc_len +=
10997 bf_get(lpfc_rcqe_length, &seq_dmabuf->rcqe);
James Smart4f774512009-05-22 14:52:35 -040010998 iocbq->iocb.un.rcvels.remoteID = sid;
10999 list_add_tail(&iocbq->list, &first_iocbq->list);
11000 }
11001 }
11002 return first_iocbq;
11003}
11004
11005/**
11006 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11007 * @phba: Pointer to HBA context object.
11008 *
11009 * This function is called with no lock held. This function processes all
11010 * the received buffers and gives it to upper layers when a received buffer
11011 * indicates that it is the final frame in the sequence. The interrupt
11012 * service routine processes received buffers at interrupt contexts and adds
11013 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11014 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11015 * appropriate receive function when the final frame in a sequence is received.
11016 **/
11017int
11018lpfc_sli4_handle_received_buffer(struct lpfc_hba *phba)
11019{
11020 LIST_HEAD(cmplq);
11021 struct hbq_dmabuf *dmabuf, *seq_dmabuf;
11022 struct fc_frame_header *fc_hdr;
11023 struct lpfc_vport *vport;
11024 uint32_t fcfi;
11025 struct lpfc_iocbq *iocbq;
11026
11027 /* Clear hba flag and get all received buffers into the cmplq */
11028 spin_lock_irq(&phba->hbalock);
11029 phba->hba_flag &= ~HBA_RECEIVE_BUFFER;
11030 list_splice_init(&phba->rb_pend_list, &cmplq);
11031 spin_unlock_irq(&phba->hbalock);
11032
11033 /* Process each received buffer */
11034 while ((dmabuf = lpfc_sli_hbqbuf_get(&cmplq)) != NULL) {
11035 fc_hdr = (struct fc_frame_header *)dmabuf->hbuf.virt;
11036 /* check to see if this a valid type of frame */
11037 if (lpfc_fc_frame_check(phba, fc_hdr)) {
11038 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11039 continue;
11040 }
11041 fcfi = bf_get(lpfc_rcqe_fcf_id, &dmabuf->rcqe);
11042 vport = lpfc_fc_frame_to_vport(phba, fc_hdr, fcfi);
11043 if (!vport) {
11044 /* throw out the frame */
11045 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11046 continue;
11047 }
11048 /* Link this frame */
11049 seq_dmabuf = lpfc_fc_frame_add(vport, dmabuf);
11050 if (!seq_dmabuf) {
11051 /* unable to add frame to vport - throw it out */
11052 lpfc_in_buf_free(phba, &dmabuf->dbuf);
11053 continue;
11054 }
11055 /* If not last frame in sequence continue processing frames. */
11056 if (!lpfc_seq_complete(seq_dmabuf)) {
11057 /*
11058 * When saving off frames post a new one and mark this
11059 * frame to be freed when it is finished.
11060 **/
11061 lpfc_sli_hbqbuf_fill_hbqs(phba, LPFC_ELS_HBQ, 1);
11062 dmabuf->tag = -1;
11063 continue;
11064 }
11065 fc_hdr = (struct fc_frame_header *)seq_dmabuf->hbuf.virt;
11066 iocbq = lpfc_prep_seq(vport, seq_dmabuf);
11067 if (!lpfc_complete_unsol_iocb(phba,
11068 &phba->sli.ring[LPFC_ELS_RING],
11069 iocbq, fc_hdr->fh_r_ctl,
11070 fc_hdr->fh_type))
11071 lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
11072 "2540 Ring %d handler: unexpected Rctl "
11073 "x%x Type x%x received\n",
11074 LPFC_ELS_RING,
11075 fc_hdr->fh_r_ctl, fc_hdr->fh_type);
11076 };
11077 return 0;
11078}
James Smart6fb120a2009-05-22 14:52:59 -040011079
11080/**
11081 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11082 * @phba: pointer to lpfc hba data structure.
11083 *
11084 * This routine is invoked to post rpi header templates to the
11085 * HBA consistent with the SLI-4 interface spec. This routine
11086 * posts a PAGE_SIZE memory region to the port to hold up to
11087 * PAGE_SIZE modulo 64 rpi context headers.
11088 *
11089 * This routine does not require any locks. It's usage is expected
11090 * to be driver load or reset recovery when the driver is
11091 * sequential.
11092 *
11093 * Return codes
11094 * 0 - sucessful
11095 * EIO - The mailbox failed to complete successfully.
11096 * When this error occurs, the driver is not guaranteed
11097 * to have any rpi regions posted to the device and
11098 * must either attempt to repost the regions or take a
11099 * fatal error.
11100 **/
11101int
11102lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba *phba)
11103{
11104 struct lpfc_rpi_hdr *rpi_page;
11105 uint32_t rc = 0;
11106
11107 /* Post all rpi memory regions to the port. */
11108 list_for_each_entry(rpi_page, &phba->sli4_hba.lpfc_rpi_hdr_list, list) {
11109 rc = lpfc_sli4_post_rpi_hdr(phba, rpi_page);
11110 if (rc != MBX_SUCCESS) {
11111 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11112 "2008 Error %d posting all rpi "
11113 "headers\n", rc);
11114 rc = -EIO;
11115 break;
11116 }
11117 }
11118
11119 return rc;
11120}
11121
11122/**
11123 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11124 * @phba: pointer to lpfc hba data structure.
11125 * @rpi_page: pointer to the rpi memory region.
11126 *
11127 * This routine is invoked to post a single rpi header to the
11128 * HBA consistent with the SLI-4 interface spec. This memory region
11129 * maps up to 64 rpi context regions.
11130 *
11131 * Return codes
11132 * 0 - sucessful
11133 * ENOMEM - No available memory
11134 * EIO - The mailbox failed to complete successfully.
11135 **/
11136int
11137lpfc_sli4_post_rpi_hdr(struct lpfc_hba *phba, struct lpfc_rpi_hdr *rpi_page)
11138{
11139 LPFC_MBOXQ_t *mboxq;
11140 struct lpfc_mbx_post_hdr_tmpl *hdr_tmpl;
11141 uint32_t rc = 0;
11142 uint32_t mbox_tmo;
11143 uint32_t shdr_status, shdr_add_status;
11144 union lpfc_sli4_cfg_shdr *shdr;
11145
11146 /* The port is notified of the header region via a mailbox command. */
11147 mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11148 if (!mboxq) {
11149 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11150 "2001 Unable to allocate memory for issuing "
11151 "SLI_CONFIG_SPECIAL mailbox command\n");
11152 return -ENOMEM;
11153 }
11154
11155 /* Post all rpi memory regions to the port. */
11156 hdr_tmpl = &mboxq->u.mqe.un.hdr_tmpl;
11157 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_SLI4_CONFIG);
11158 lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11159 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE,
11160 sizeof(struct lpfc_mbx_post_hdr_tmpl) -
11161 sizeof(struct mbox_header), LPFC_SLI4_MBX_EMBED);
11162 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt,
11163 hdr_tmpl, rpi_page->page_count);
11164 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset, hdr_tmpl,
11165 rpi_page->start_rpi);
11166 hdr_tmpl->rpi_paddr_lo = putPaddrLow(rpi_page->dmabuf->phys);
11167 hdr_tmpl->rpi_paddr_hi = putPaddrHigh(rpi_page->dmabuf->phys);
James Smartf1126682009-06-10 17:22:44 -040011168 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
James Smart6fb120a2009-05-22 14:52:59 -040011169 shdr = (union lpfc_sli4_cfg_shdr *) &hdr_tmpl->header.cfg_shdr;
11170 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11171 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11172 if (rc != MBX_TIMEOUT)
11173 mempool_free(mboxq, phba->mbox_mem_pool);
11174 if (shdr_status || shdr_add_status || rc) {
11175 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11176 "2514 POST_RPI_HDR mailbox failed with "
11177 "status x%x add_status x%x, mbx status x%x\n",
11178 shdr_status, shdr_add_status, rc);
11179 rc = -ENXIO;
11180 }
11181 return rc;
11182}
11183
11184/**
11185 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11186 * @phba: pointer to lpfc hba data structure.
11187 *
11188 * This routine is invoked to post rpi header templates to the
11189 * HBA consistent with the SLI-4 interface spec. This routine
11190 * posts a PAGE_SIZE memory region to the port to hold up to
11191 * PAGE_SIZE modulo 64 rpi context headers.
11192 *
11193 * Returns
11194 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if sucessful
11195 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11196 **/
11197int
11198lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
11199{
11200 int rpi;
11201 uint16_t max_rpi, rpi_base, rpi_limit;
11202 uint16_t rpi_remaining;
11203 struct lpfc_rpi_hdr *rpi_hdr;
11204
11205 max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
11206 rpi_base = phba->sli4_hba.max_cfg_param.rpi_base;
11207 rpi_limit = phba->sli4_hba.next_rpi;
11208
11209 /*
11210 * The valid rpi range is not guaranteed to be zero-based. Start
11211 * the search at the rpi_base as reported by the port.
11212 */
11213 spin_lock_irq(&phba->hbalock);
11214 rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, rpi_base);
11215 if (rpi >= rpi_limit || rpi < rpi_base)
11216 rpi = LPFC_RPI_ALLOC_ERROR;
11217 else {
11218 set_bit(rpi, phba->sli4_hba.rpi_bmask);
11219 phba->sli4_hba.max_cfg_param.rpi_used++;
11220 phba->sli4_hba.rpi_count++;
11221 }
11222
11223 /*
11224 * Don't try to allocate more rpi header regions if the device limit
11225 * on available rpis max has been exhausted.
11226 */
11227 if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
11228 (phba->sli4_hba.rpi_count >= max_rpi)) {
11229 spin_unlock_irq(&phba->hbalock);
11230 return rpi;
11231 }
11232
11233 /*
11234 * If the driver is running low on rpi resources, allocate another
11235 * page now. Note that the next_rpi value is used because
11236 * it represents how many are actually in use whereas max_rpi notes
11237 * how many are supported max by the device.
11238 */
11239 rpi_remaining = phba->sli4_hba.next_rpi - rpi_base -
11240 phba->sli4_hba.rpi_count;
11241 spin_unlock_irq(&phba->hbalock);
11242 if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
11243 rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
11244 if (!rpi_hdr) {
11245 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11246 "2002 Error Could not grow rpi "
11247 "count\n");
11248 } else {
11249 lpfc_sli4_post_rpi_hdr(phba, rpi_hdr);
11250 }
11251 }
11252
11253 return rpi;
11254}
11255
11256/**
11257 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11258 * @phba: pointer to lpfc hba data structure.
11259 *
11260 * This routine is invoked to release an rpi to the pool of
11261 * available rpis maintained by the driver.
11262 **/
11263void
11264lpfc_sli4_free_rpi(struct lpfc_hba *phba, int rpi)
11265{
11266 spin_lock_irq(&phba->hbalock);
11267 clear_bit(rpi, phba->sli4_hba.rpi_bmask);
11268 phba->sli4_hba.rpi_count--;
11269 phba->sli4_hba.max_cfg_param.rpi_used--;
11270 spin_unlock_irq(&phba->hbalock);
11271}
11272
11273/**
11274 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11275 * @phba: pointer to lpfc hba data structure.
11276 *
11277 * This routine is invoked to remove the memory region that
11278 * provided rpi via a bitmask.
11279 **/
11280void
11281lpfc_sli4_remove_rpis(struct lpfc_hba *phba)
11282{
11283 kfree(phba->sli4_hba.rpi_bmask);
11284}
11285
11286/**
11287 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11288 * @phba: pointer to lpfc hba data structure.
11289 *
11290 * This routine is invoked to remove the memory region that
11291 * provided rpi via a bitmask.
11292 **/
11293int
11294lpfc_sli4_resume_rpi(struct lpfc_nodelist *ndlp)
11295{
11296 LPFC_MBOXQ_t *mboxq;
11297 struct lpfc_hba *phba = ndlp->phba;
11298 int rc;
11299
11300 /* The port is notified of the header region via a mailbox command. */
11301 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11302 if (!mboxq)
11303 return -ENOMEM;
11304
11305 /* Post all rpi memory regions to the port. */
11306 lpfc_resume_rpi(mboxq, ndlp);
11307 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11308 if (rc == MBX_NOT_FINISHED) {
11309 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11310 "2010 Resume RPI Mailbox failed "
11311 "status %d, mbxStatus x%x\n", rc,
11312 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11313 mempool_free(mboxq, phba->mbox_mem_pool);
11314 return -EIO;
11315 }
11316 return 0;
11317}
11318
11319/**
11320 * lpfc_sli4_init_vpi - Initialize a vpi with the port
11321 * @phba: pointer to lpfc hba data structure.
11322 * @vpi: vpi value to activate with the port.
11323 *
11324 * This routine is invoked to activate a vpi with the
11325 * port when the host intends to use vports with a
11326 * nonzero vpi.
11327 *
11328 * Returns:
11329 * 0 success
11330 * -Evalue otherwise
11331 **/
11332int
11333lpfc_sli4_init_vpi(struct lpfc_hba *phba, uint16_t vpi)
11334{
11335 LPFC_MBOXQ_t *mboxq;
11336 int rc = 0;
11337 uint32_t mbox_tmo;
11338
11339 if (vpi == 0)
11340 return -EINVAL;
11341 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11342 if (!mboxq)
11343 return -ENOMEM;
James Smart1c6834a2009-07-19 10:01:26 -040011344 lpfc_init_vpi(phba, mboxq, vpi);
James Smart6fb120a2009-05-22 14:52:59 -040011345 mbox_tmo = lpfc_mbox_tmo_val(phba, MBX_INIT_VPI);
11346 rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
11347 if (rc != MBX_TIMEOUT)
11348 mempool_free(mboxq, phba->mbox_mem_pool);
11349 if (rc != MBX_SUCCESS) {
11350 lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
11351 "2022 INIT VPI Mailbox failed "
11352 "status %d, mbxStatus x%x\n", rc,
11353 bf_get(lpfc_mqe_status, &mboxq->u.mqe));
11354 rc = -EIO;
11355 }
11356 return rc;
11357}
11358
11359/**
11360 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
11361 * @phba: pointer to lpfc hba data structure.
11362 * @mboxq: Pointer to mailbox object.
11363 *
11364 * This routine is invoked to manually add a single FCF record. The caller
11365 * must pass a completely initialized FCF_Record. This routine takes
11366 * care of the nonembedded mailbox operations.
11367 **/
11368static void
11369lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
11370{
11371 void *virt_addr;
11372 union lpfc_sli4_cfg_shdr *shdr;
11373 uint32_t shdr_status, shdr_add_status;
11374
11375 virt_addr = mboxq->sge_array->addr[0];
11376 /* The IOCTL status is embedded in the mailbox subheader. */
11377 shdr = (union lpfc_sli4_cfg_shdr *) virt_addr;
11378 shdr_status = bf_get(lpfc_mbox_hdr_status, &shdr->response);
11379 shdr_add_status = bf_get(lpfc_mbox_hdr_add_status, &shdr->response);
11380
11381 if ((shdr_status || shdr_add_status) &&
11382 (shdr_status != STATUS_FCF_IN_USE))
11383 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11384 "2558 ADD_FCF_RECORD mailbox failed with "
11385 "status x%x add_status x%x\n",
11386 shdr_status, shdr_add_status);
11387
11388 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11389}
11390
11391/**
11392 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
11393 * @phba: pointer to lpfc hba data structure.
11394 * @fcf_record: pointer to the initialized fcf record to add.
11395 *
11396 * This routine is invoked to manually add a single FCF record. The caller
11397 * must pass a completely initialized FCF_Record. This routine takes
11398 * care of the nonembedded mailbox operations.
11399 **/
11400int
11401lpfc_sli4_add_fcf_record(struct lpfc_hba *phba, struct fcf_record *fcf_record)
11402{
11403 int rc = 0;
11404 LPFC_MBOXQ_t *mboxq;
11405 uint8_t *bytep;
11406 void *virt_addr;
11407 dma_addr_t phys_addr;
11408 struct lpfc_mbx_sge sge;
11409 uint32_t alloc_len, req_len;
11410 uint32_t fcfindex;
11411
11412 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11413 if (!mboxq) {
11414 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11415 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
11416 return -ENOMEM;
11417 }
11418
11419 req_len = sizeof(struct fcf_record) + sizeof(union lpfc_sli4_cfg_shdr) +
11420 sizeof(uint32_t);
11421
11422 /* Allocate DMA memory and set up the non-embedded mailbox command */
11423 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11424 LPFC_MBOX_OPCODE_FCOE_ADD_FCF,
11425 req_len, LPFC_SLI4_MBX_NEMBED);
11426 if (alloc_len < req_len) {
11427 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11428 "2523 Allocated DMA memory size (x%x) is "
11429 "less than the requested DMA memory "
11430 "size (x%x)\n", alloc_len, req_len);
11431 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11432 return -ENOMEM;
11433 }
11434
11435 /*
11436 * Get the first SGE entry from the non-embedded DMA memory. This
11437 * routine only uses a single SGE.
11438 */
11439 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11440 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11441 if (unlikely(!mboxq->sge_array)) {
11442 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11443 "2526 Failed to get the non-embedded SGE "
11444 "virtual address\n");
11445 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11446 return -ENOMEM;
11447 }
11448 virt_addr = mboxq->sge_array->addr[0];
11449 /*
11450 * Configure the FCF record for FCFI 0. This is the driver's
11451 * hardcoded default and gets used in nonFIP mode.
11452 */
11453 fcfindex = bf_get(lpfc_fcf_record_fcf_index, fcf_record);
11454 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11455 lpfc_sli_pcimem_bcopy(&fcfindex, bytep, sizeof(uint32_t));
11456
11457 /*
11458 * Copy the fcf_index and the FCF Record Data. The data starts after
11459 * the FCoE header plus word10. The data copy needs to be endian
11460 * correct.
11461 */
11462 bytep += sizeof(uint32_t);
11463 lpfc_sli_pcimem_bcopy(fcf_record, bytep, sizeof(struct fcf_record));
11464 mboxq->vport = phba->pport;
11465 mboxq->mbox_cmpl = lpfc_mbx_cmpl_add_fcf_record;
11466 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11467 if (rc == MBX_NOT_FINISHED) {
11468 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11469 "2515 ADD_FCF_RECORD mailbox failed with "
11470 "status 0x%x\n", rc);
11471 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11472 rc = -EIO;
11473 } else
11474 rc = 0;
11475
11476 return rc;
11477}
11478
11479/**
11480 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
11481 * @phba: pointer to lpfc hba data structure.
11482 * @fcf_record: pointer to the fcf record to write the default data.
11483 * @fcf_index: FCF table entry index.
11484 *
11485 * This routine is invoked to build the driver's default FCF record. The
11486 * values used are hardcoded. This routine handles memory initialization.
11487 *
11488 **/
11489void
11490lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba *phba,
11491 struct fcf_record *fcf_record,
11492 uint16_t fcf_index)
11493{
11494 memset(fcf_record, 0, sizeof(struct fcf_record));
11495 fcf_record->max_rcv_size = LPFC_FCOE_MAX_RCV_SIZE;
11496 fcf_record->fka_adv_period = LPFC_FCOE_FKA_ADV_PER;
11497 fcf_record->fip_priority = LPFC_FCOE_FIP_PRIORITY;
11498 bf_set(lpfc_fcf_record_mac_0, fcf_record, phba->fc_map[0]);
11499 bf_set(lpfc_fcf_record_mac_1, fcf_record, phba->fc_map[1]);
11500 bf_set(lpfc_fcf_record_mac_2, fcf_record, phba->fc_map[2]);
11501 bf_set(lpfc_fcf_record_mac_3, fcf_record, LPFC_FCOE_FCF_MAC3);
11502 bf_set(lpfc_fcf_record_mac_4, fcf_record, LPFC_FCOE_FCF_MAC4);
11503 bf_set(lpfc_fcf_record_mac_5, fcf_record, LPFC_FCOE_FCF_MAC5);
11504 bf_set(lpfc_fcf_record_fc_map_0, fcf_record, phba->fc_map[0]);
11505 bf_set(lpfc_fcf_record_fc_map_1, fcf_record, phba->fc_map[1]);
11506 bf_set(lpfc_fcf_record_fc_map_2, fcf_record, phba->fc_map[2]);
11507 bf_set(lpfc_fcf_record_fcf_valid, fcf_record, 1);
James Smart0c287582009-06-10 17:22:56 -040011508 bf_set(lpfc_fcf_record_fcf_avail, fcf_record, 1);
James Smart6fb120a2009-05-22 14:52:59 -040011509 bf_set(lpfc_fcf_record_fcf_index, fcf_record, fcf_index);
11510 bf_set(lpfc_fcf_record_mac_addr_prov, fcf_record,
11511 LPFC_FCF_FPMA | LPFC_FCF_SPMA);
11512 /* Set the VLAN bit map */
11513 if (phba->valid_vlan) {
11514 fcf_record->vlan_bitmap[phba->vlan_id / 8]
11515 = 1 << (phba->vlan_id % 8);
11516 }
11517}
11518
11519/**
11520 * lpfc_sli4_read_fcf_record - Read the driver's default FCF Record.
11521 * @phba: pointer to lpfc hba data structure.
11522 * @fcf_index: FCF table entry offset.
11523 *
11524 * This routine is invoked to read up to @fcf_num of FCF record from the
11525 * device starting with the given @fcf_index.
11526 **/
11527int
11528lpfc_sli4_read_fcf_record(struct lpfc_hba *phba, uint16_t fcf_index)
11529{
11530 int rc = 0, error;
11531 LPFC_MBOXQ_t *mboxq;
11532 void *virt_addr;
11533 dma_addr_t phys_addr;
11534 uint8_t *bytep;
11535 struct lpfc_mbx_sge sge;
11536 uint32_t alloc_len, req_len;
11537 struct lpfc_mbx_read_fcf_tbl *read_fcf;
11538
James Smart32b97932009-07-19 10:01:21 -040011539 phba->fcoe_eventtag_at_fcf_scan = phba->fcoe_eventtag;
James Smart6fb120a2009-05-22 14:52:59 -040011540 mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11541 if (!mboxq) {
11542 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11543 "2000 Failed to allocate mbox for "
11544 "READ_FCF cmd\n");
11545 return -ENOMEM;
11546 }
11547
11548 req_len = sizeof(struct fcf_record) +
11549 sizeof(union lpfc_sli4_cfg_shdr) + 2 * sizeof(uint32_t);
11550
11551 /* Set up READ_FCF SLI4_CONFIG mailbox-ioctl command */
11552 alloc_len = lpfc_sli4_config(phba, mboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
11553 LPFC_MBOX_OPCODE_FCOE_READ_FCF_TABLE, req_len,
11554 LPFC_SLI4_MBX_NEMBED);
11555
11556 if (alloc_len < req_len) {
11557 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11558 "0291 Allocated DMA memory size (x%x) is "
11559 "less than the requested DMA memory "
11560 "size (x%x)\n", alloc_len, req_len);
11561 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11562 return -ENOMEM;
11563 }
11564
11565 /* Get the first SGE entry from the non-embedded DMA memory. This
11566 * routine only uses a single SGE.
11567 */
11568 lpfc_sli4_mbx_sge_get(mboxq, 0, &sge);
11569 phys_addr = getPaddr(sge.pa_hi, sge.pa_lo);
11570 if (unlikely(!mboxq->sge_array)) {
11571 lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
11572 "2527 Failed to get the non-embedded SGE "
11573 "virtual address\n");
11574 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11575 return -ENOMEM;
11576 }
11577 virt_addr = mboxq->sge_array->addr[0];
11578 read_fcf = (struct lpfc_mbx_read_fcf_tbl *)virt_addr;
11579
11580 /* Set up command fields */
11581 bf_set(lpfc_mbx_read_fcf_tbl_indx, &read_fcf->u.request, fcf_index);
11582 /* Perform necessary endian conversion */
11583 bytep = virt_addr + sizeof(union lpfc_sli4_cfg_shdr);
11584 lpfc_sli_pcimem_bcopy(bytep, bytep, sizeof(uint32_t));
11585 mboxq->vport = phba->pport;
11586 mboxq->mbox_cmpl = lpfc_mbx_cmpl_read_fcf_record;
11587 rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
11588 if (rc == MBX_NOT_FINISHED) {
11589 lpfc_sli4_mbox_cmd_free(phba, mboxq);
11590 error = -EIO;
James Smart32b97932009-07-19 10:01:21 -040011591 } else {
11592 spin_lock_irq(&phba->hbalock);
11593 phba->hba_flag |= FCF_DISC_INPROGRESS;
11594 spin_unlock_irq(&phba->hbalock);
James Smart6fb120a2009-05-22 14:52:59 -040011595 error = 0;
James Smart32b97932009-07-19 10:01:21 -040011596 }
James Smart6fb120a2009-05-22 14:52:59 -040011597 return error;
11598}
James Smarta0c87cb2009-07-19 10:01:10 -040011599
11600/**
11601 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
11602 * @phba: pointer to lpfc hba data structure.
11603 *
11604 * This function read region 23 and parse TLV for port status to
11605 * decide if the user disaled the port. If the TLV indicates the
11606 * port is disabled, the hba_flag is set accordingly.
11607 **/
11608void
11609lpfc_sli_read_link_ste(struct lpfc_hba *phba)
11610{
11611 LPFC_MBOXQ_t *pmb = NULL;
11612 MAILBOX_t *mb;
11613 uint8_t *rgn23_data = NULL;
11614 uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
11615 int rc;
11616
11617 pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
11618 if (!pmb) {
11619 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11620 "2600 lpfc_sli_read_serdes_param failed to"
11621 " allocate mailbox memory\n");
11622 goto out;
11623 }
11624 mb = &pmb->u.mb;
11625
11626 /* Get adapter Region 23 data */
11627 rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
11628 if (!rgn23_data)
11629 goto out;
11630
11631 do {
11632 lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
11633 rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
11634
11635 if (rc != MBX_SUCCESS) {
11636 lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
11637 "2601 lpfc_sli_read_link_ste failed to"
11638 " read config region 23 rc 0x%x Status 0x%x\n",
11639 rc, mb->mbxStatus);
11640 mb->un.varDmp.word_cnt = 0;
11641 }
11642 /*
11643 * dump mem may return a zero when finished or we got a
11644 * mailbox error, either way we are done.
11645 */
11646 if (mb->un.varDmp.word_cnt == 0)
11647 break;
11648 if (mb->un.varDmp.word_cnt > DMP_RGN23_SIZE - offset)
11649 mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
11650
11651 lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
11652 rgn23_data + offset,
11653 mb->un.varDmp.word_cnt);
11654 offset += mb->un.varDmp.word_cnt;
11655 } while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
11656
11657 data_size = offset;
11658 offset = 0;
11659
11660 if (!data_size)
11661 goto out;
11662
11663 /* Check the region signature first */
11664 if (memcmp(&rgn23_data[offset], LPFC_REGION23_SIGNATURE, 4)) {
11665 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11666 "2619 Config region 23 has bad signature\n");
11667 goto out;
11668 }
11669 offset += 4;
11670
11671 /* Check the data structure version */
11672 if (rgn23_data[offset] != LPFC_REGION23_VERSION) {
11673 lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
11674 "2620 Config region 23 has bad version\n");
11675 goto out;
11676 }
11677 offset += 4;
11678
11679 /* Parse TLV entries in the region */
11680 while (offset < data_size) {
11681 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC)
11682 break;
11683 /*
11684 * If the TLV is not driver specific TLV or driver id is
11685 * not linux driver id, skip the record.
11686 */
11687 if ((rgn23_data[offset] != DRIVER_SPECIFIC_TYPE) ||
11688 (rgn23_data[offset + 2] != LINUX_DRIVER_ID) ||
11689 (rgn23_data[offset + 3] != 0)) {
11690 offset += rgn23_data[offset + 1] * 4 + 4;
11691 continue;
11692 }
11693
11694 /* Driver found a driver specific TLV in the config region */
11695 sub_tlv_len = rgn23_data[offset + 1] * 4;
11696 offset += 4;
11697 tlv_offset = 0;
11698
11699 /*
11700 * Search for configured port state sub-TLV.
11701 */
11702 while ((offset < data_size) &&
11703 (tlv_offset < sub_tlv_len)) {
11704 if (rgn23_data[offset] == LPFC_REGION23_LAST_REC) {
11705 offset += 4;
11706 tlv_offset += 4;
11707 break;
11708 }
11709 if (rgn23_data[offset] != PORT_STE_TYPE) {
11710 offset += rgn23_data[offset + 1] * 4 + 4;
11711 tlv_offset += rgn23_data[offset + 1] * 4 + 4;
11712 continue;
11713 }
11714
11715 /* This HBA contains PORT_STE configured */
11716 if (!rgn23_data[offset + 2])
11717 phba->hba_flag |= LINK_DISABLED;
11718
11719 goto out;
11720 }
11721 }
11722out:
11723 if (pmb)
11724 mempool_free(pmb, phba->mbox_mem_pool);
11725 kfree(rgn23_data);
11726 return;
11727}