1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * 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. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type
{
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
62 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
69 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
75 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
76 * @q: The Work Queue to operate on.
77 * @wqe: The work Queue Entry to put on the Work queue.
79 * This routine will copy the contents of @wqe to the next available entry on
80 * the @q. This function will then ring the Work Queue Doorbell to signal the
81 * HBA to start processing the Work Queue Entry. This function returns 0 if
82 * successful. If no entries are available on @q then this function will return
84 * The caller is expected to hold the hbalock when calling this routine.
87 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
89 union lpfc_wqe
*temp_wqe
= q
->qe
[q
->host_index
].wqe
;
90 struct lpfc_register doorbell
;
93 /* If the host has not yet processed the next entry then we are done */
94 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
96 /* set consumption flag every once in a while */
97 if (!((q
->host_index
+ 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL
))
98 bf_set(lpfc_wqe_gen_wqec
, &wqe
->generic
, 1);
100 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
102 /* Update the host index before invoking device */
103 host_index
= q
->host_index
;
104 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
108 bf_set(lpfc_wq_doorbell_num_posted
, &doorbell
, 1);
109 bf_set(lpfc_wq_doorbell_index
, &doorbell
, host_index
);
110 bf_set(lpfc_wq_doorbell_id
, &doorbell
, q
->queue_id
);
111 writel(doorbell
.word0
, q
->phba
->sli4_hba
.WQDBregaddr
);
112 readl(q
->phba
->sli4_hba
.WQDBregaddr
); /* Flush */
118 * lpfc_sli4_wq_release - Updates internal hba index for WQ
119 * @q: The Work Queue to operate on.
120 * @index: The index to advance the hba index to.
122 * This routine will update the HBA index of a queue to reflect consumption of
123 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
124 * an entry the host calls this function to update the queue's internal
125 * pointers. This routine returns the number of entries that were consumed by
129 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
131 uint32_t released
= 0;
133 if (q
->hba_index
== index
)
136 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
138 } while (q
->hba_index
!= index
);
143 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
144 * @q: The Mailbox Queue to operate on.
145 * @wqe: The Mailbox Queue Entry to put on the Work queue.
147 * This routine will copy the contents of @mqe to the next available entry on
148 * the @q. This function will then ring the Work Queue Doorbell to signal the
149 * HBA to start processing the Work Queue Entry. This function returns 0 if
150 * successful. If no entries are available on @q then this function will return
152 * The caller is expected to hold the hbalock when calling this routine.
155 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
157 struct lpfc_mqe
*temp_mqe
= q
->qe
[q
->host_index
].mqe
;
158 struct lpfc_register doorbell
;
161 /* If the host has not yet processed the next entry then we are done */
162 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
164 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
165 /* Save off the mailbox pointer for completion */
166 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
168 /* Update the host index before invoking device */
169 host_index
= q
->host_index
;
170 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
174 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
175 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
176 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
177 readl(q
->phba
->sli4_hba
.MQDBregaddr
); /* Flush */
182 * lpfc_sli4_mq_release - Updates internal hba index for MQ
183 * @q: The Mailbox Queue to operate on.
185 * This routine will update the HBA index of a queue to reflect consumption of
186 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
187 * an entry the host calls this function to update the queue's internal
188 * pointers. This routine returns the number of entries that were consumed by
192 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
194 /* Clear the mailbox pointer for completion */
195 q
->phba
->mbox
= NULL
;
196 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
201 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
202 * @q: The Event Queue to get the first valid EQE from
204 * This routine will get the first valid Event Queue Entry from @q, update
205 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
206 * the Queue (no more work to do), or the Queue is full of EQEs that have been
207 * processed, but not popped back to the HBA then this routine will return NULL.
209 static struct lpfc_eqe
*
210 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
212 struct lpfc_eqe
*eqe
= q
->qe
[q
->hba_index
].eqe
;
214 /* If the next EQE is not valid then we are done */
215 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
217 /* If the host has not yet processed the next entry then we are done */
218 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
221 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
226 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
227 * @q: The Event Queue that the host has completed processing for.
228 * @arm: Indicates whether the host wants to arms this CQ.
230 * This routine will mark all Event Queue Entries on @q, from the last
231 * known completed entry to the last entry that was processed, as completed
232 * by clearing the valid bit for each completion queue entry. Then it will
233 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
234 * The internal host index in the @q will be updated by this routine to indicate
235 * that the host has finished processing the entries. The @arm parameter
236 * indicates that the queue should be rearmed when ringing the doorbell.
238 * This function will return the number of EQEs that were popped.
241 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
243 uint32_t released
= 0;
244 struct lpfc_eqe
*temp_eqe
;
245 struct lpfc_register doorbell
;
247 /* while there are valid entries */
248 while (q
->hba_index
!= q
->host_index
) {
249 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
250 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
252 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
254 if (unlikely(released
== 0 && !arm
))
257 /* ring doorbell for number popped */
260 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
261 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
263 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
264 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
265 bf_set(lpfc_eqcq_doorbell_eqid
, &doorbell
, q
->queue_id
);
266 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
267 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
268 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
269 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
274 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
275 * @q: The Completion Queue to get the first valid CQE from
277 * This routine will get the first valid Completion Queue Entry from @q, update
278 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
279 * the Queue (no more work to do), or the Queue is full of CQEs that have been
280 * processed, but not popped back to the HBA then this routine will return NULL.
282 static struct lpfc_cqe
*
283 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
285 struct lpfc_cqe
*cqe
;
287 /* If the next CQE is not valid then we are done */
288 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
290 /* If the host has not yet processed the next entry then we are done */
291 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
294 cqe
= q
->qe
[q
->hba_index
].cqe
;
295 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
300 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
301 * @q: The Completion Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
304 * This routine will mark all Completion queue entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
312 * This function will return the number of CQEs that were released.
315 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
317 uint32_t released
= 0;
318 struct lpfc_cqe
*temp_qe
;
319 struct lpfc_register doorbell
;
321 /* while there are valid entries */
322 while (q
->hba_index
!= q
->host_index
) {
323 temp_qe
= q
->qe
[q
->host_index
].cqe
;
324 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
326 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
328 if (unlikely(released
== 0 && !arm
))
331 /* ring doorbell for number popped */
334 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
335 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
336 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
337 bf_set(lpfc_eqcq_doorbell_cqid
, &doorbell
, q
->queue_id
);
338 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
343 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
344 * @q: The Header Receive Queue to operate on.
345 * @wqe: The Receive Queue Entry to put on the Receive queue.
347 * This routine will copy the contents of @wqe to the next available entry on
348 * the @q. This function will then ring the Receive Queue Doorbell to signal the
349 * HBA to start processing the Receive Queue Entry. This function returns the
350 * index that the rqe was copied to if successful. If no entries are available
351 * on @q then this function will return -ENOMEM.
352 * The caller is expected to hold the hbalock when calling this routine.
355 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
356 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
358 struct lpfc_rqe
*temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
359 struct lpfc_rqe
*temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
360 struct lpfc_register doorbell
;
361 int put_index
= hq
->host_index
;
363 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
365 if (hq
->host_index
!= dq
->host_index
)
367 /* If the host has not yet processed the next entry then we are done */
368 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
370 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
371 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
373 /* Update the host index to point to the next slot */
374 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
375 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
377 /* Ring The Header Receive Queue Doorbell */
378 if (!(hq
->host_index
% LPFC_RQ_POST_BATCH
)) {
380 bf_set(lpfc_rq_doorbell_num_posted
, &doorbell
,
382 bf_set(lpfc_rq_doorbell_id
, &doorbell
, hq
->queue_id
);
383 writel(doorbell
.word0
, hq
->phba
->sli4_hba
.RQDBregaddr
);
389 * lpfc_sli4_rq_release - Updates internal hba index for RQ
390 * @q: The Header Receive Queue to operate on.
392 * This routine will update the HBA index of a queue to reflect consumption of
393 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
394 * consumed an entry the host calls this function to update the queue's
395 * internal pointers. This routine returns the number of entries that were
396 * consumed by the HBA.
399 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
401 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
403 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
404 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
409 * lpfc_cmd_iocb - Get next command iocb entry in the ring
410 * @phba: Pointer to HBA context object.
411 * @pring: Pointer to driver SLI ring object.
413 * This function returns pointer to next command iocb entry
414 * in the command ring. The caller must hold hbalock to prevent
415 * other threads consume the next command iocb.
416 * SLI-2/SLI-3 provide different sized iocbs.
418 static inline IOCB_t
*
419 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
421 return (IOCB_t
*) (((char *) pring
->cmdringaddr
) +
422 pring
->cmdidx
* phba
->iocb_cmd_size
);
426 * lpfc_resp_iocb - Get next response iocb entry in the ring
427 * @phba: Pointer to HBA context object.
428 * @pring: Pointer to driver SLI ring object.
430 * This function returns pointer to next response iocb entry
431 * in the response ring. The caller must hold hbalock to make sure
432 * that no other thread consume the next response iocb.
433 * SLI-2/SLI-3 provide different sized iocbs.
435 static inline IOCB_t
*
436 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
438 return (IOCB_t
*) (((char *) pring
->rspringaddr
) +
439 pring
->rspidx
* phba
->iocb_rsp_size
);
443 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
444 * @phba: Pointer to HBA context object.
446 * This function is called with hbalock held. This function
447 * allocates a new driver iocb object from the iocb pool. If the
448 * allocation is successful, it returns pointer to the newly
449 * allocated iocb object else it returns NULL.
451 static struct lpfc_iocbq
*
452 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
454 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
455 struct lpfc_iocbq
* iocbq
= NULL
;
457 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
461 if (phba
->iocb_cnt
> phba
->iocb_max
)
462 phba
->iocb_max
= phba
->iocb_cnt
;
467 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
468 * @phba: Pointer to HBA context object.
469 * @xritag: XRI value.
471 * This function clears the sglq pointer from the array of acive
472 * sglq's. The xritag that is passed in is used to index into the
473 * array. Before the xritag can be used it needs to be adjusted
474 * by subtracting the xribase.
476 * Returns sglq ponter = success, NULL = Failure.
478 static struct lpfc_sglq
*
479 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
482 struct lpfc_sglq
*sglq
;
483 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
484 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
486 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
487 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = NULL
;
492 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
493 * @phba: Pointer to HBA context object.
494 * @xritag: XRI value.
496 * This function returns the sglq pointer from the array of acive
497 * sglq's. The xritag that is passed in is used to index into the
498 * array. Before the xritag can be used it needs to be adjusted
499 * by subtracting the xribase.
501 * Returns sglq ponter = success, NULL = Failure.
504 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
507 struct lpfc_sglq
*sglq
;
508 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
509 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
511 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
516 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
517 * @phba: Pointer to HBA context object.
519 * This function is called with hbalock held. This function
520 * Gets a new driver sglq object from the sglq list. If the
521 * list is not empty then it is successful, it returns pointer to the newly
522 * allocated sglq object else it returns NULL.
524 static struct lpfc_sglq
*
525 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
)
527 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
528 struct lpfc_sglq
*sglq
= NULL
;
530 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
533 adj_xri
= sglq
->sli4_xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
534 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = sglq
;
535 sglq
->state
= SGL_ALLOCATED
;
540 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
541 * @phba: Pointer to HBA context object.
543 * This function is called with no lock held. This function
544 * allocates a new driver iocb object from the iocb pool. If the
545 * allocation is successful, it returns pointer to the newly
546 * allocated iocb object else it returns NULL.
549 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
551 struct lpfc_iocbq
* iocbq
= NULL
;
552 unsigned long iflags
;
554 spin_lock_irqsave(&phba
->hbalock
, iflags
);
555 iocbq
= __lpfc_sli_get_iocbq(phba
);
556 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
561 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
562 * @phba: Pointer to HBA context object.
563 * @iocbq: Pointer to driver iocb object.
565 * This function is called with hbalock held to release driver
566 * iocb object to the iocb pool. The iotag in the iocb object
567 * does not change for each use of the iocb object. This function
568 * clears all other fields of the iocb object when it is freed.
569 * The sqlq structure that holds the xritag and phys and virtual
570 * mappings for the scatter gather list is retrieved from the
571 * active array of sglq. The get of the sglq pointer also clears
572 * the entry in the array. If the status of the IO indiactes that
573 * this IO was aborted then the sglq entry it put on the
574 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
575 * IO has good status or fails for any other reason then the sglq
576 * entry is added to the free list (lpfc_sgl_list).
579 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
581 struct lpfc_sglq
*sglq
;
582 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
583 unsigned long iflag
= 0;
584 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
586 if (iocbq
->sli4_xritag
== NO_XRI
)
589 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_xritag
);
591 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
592 (sglq
->state
!= SGL_XRI_ABORTED
)) {
593 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
595 list_add(&sglq
->list
,
596 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
597 spin_unlock_irqrestore(
598 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
600 sglq
->state
= SGL_FREED
;
601 list_add(&sglq
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
603 /* Check if TXQ queue needs to be serviced */
605 lpfc_worker_wake_up(phba
);
611 * Clean all volatile data fields, preserve iotag and node struct.
613 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
614 iocbq
->sli4_xritag
= NO_XRI
;
615 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
620 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
621 * @phba: Pointer to HBA context object.
622 * @iocbq: Pointer to driver iocb object.
624 * This function is called with hbalock held to release driver
625 * iocb object to the iocb pool. The iotag in the iocb object
626 * does not change for each use of the iocb object. This function
627 * clears all other fields of the iocb object when it is freed.
630 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
632 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
635 * Clean all volatile data fields, preserve iotag and node struct.
637 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
638 iocbq
->sli4_xritag
= NO_XRI
;
639 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
643 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
644 * @phba: Pointer to HBA context object.
645 * @iocbq: Pointer to driver iocb object.
647 * This function is called with hbalock held to release driver
648 * iocb object to the iocb pool. The iotag in the iocb object
649 * does not change for each use of the iocb object. This function
650 * clears all other fields of the iocb object when it is freed.
653 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
655 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
660 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
661 * @phba: Pointer to HBA context object.
662 * @iocbq: Pointer to driver iocb object.
664 * This function is called with no lock held to release the iocb to
668 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
670 unsigned long iflags
;
673 * Clean all volatile data fields, preserve iotag and node struct.
675 spin_lock_irqsave(&phba
->hbalock
, iflags
);
676 __lpfc_sli_release_iocbq(phba
, iocbq
);
677 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
681 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
682 * @phba: Pointer to HBA context object.
683 * @iocblist: List of IOCBs.
684 * @ulpstatus: ULP status in IOCB command field.
685 * @ulpWord4: ULP word-4 in IOCB command field.
687 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
688 * on the list by invoking the complete callback function associated with the
689 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
693 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
694 uint32_t ulpstatus
, uint32_t ulpWord4
)
696 struct lpfc_iocbq
*piocb
;
698 while (!list_empty(iocblist
)) {
699 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
701 if (!piocb
->iocb_cmpl
)
702 lpfc_sli_release_iocbq(phba
, piocb
);
704 piocb
->iocb
.ulpStatus
= ulpstatus
;
705 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
706 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
713 * lpfc_sli_iocb_cmd_type - Get the iocb type
714 * @iocb_cmnd: iocb command code.
716 * This function is called by ring event handler function to get the iocb type.
717 * This function translates the iocb command to an iocb command type used to
718 * decide the final disposition of each completed IOCB.
719 * The function returns
720 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
721 * LPFC_SOL_IOCB if it is a solicited iocb completion
722 * LPFC_ABORT_IOCB if it is an abort iocb
723 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
725 * The caller is not required to hold any lock.
727 static lpfc_iocb_type
728 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
730 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
732 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
736 case CMD_XMIT_SEQUENCE_CR
:
737 case CMD_XMIT_SEQUENCE_CX
:
738 case CMD_XMIT_BCAST_CN
:
739 case CMD_XMIT_BCAST_CX
:
740 case CMD_ELS_REQUEST_CR
:
741 case CMD_ELS_REQUEST_CX
:
742 case CMD_CREATE_XRI_CR
:
743 case CMD_CREATE_XRI_CX
:
745 case CMD_XMIT_ELS_RSP_CX
:
747 case CMD_FCP_IWRITE_CR
:
748 case CMD_FCP_IWRITE_CX
:
749 case CMD_FCP_IREAD_CR
:
750 case CMD_FCP_IREAD_CX
:
751 case CMD_FCP_ICMND_CR
:
752 case CMD_FCP_ICMND_CX
:
753 case CMD_FCP_TSEND_CX
:
754 case CMD_FCP_TRSP_CX
:
755 case CMD_FCP_TRECEIVE_CX
:
756 case CMD_FCP_AUTO_TRSP_CX
:
757 case CMD_ADAPTER_MSG
:
758 case CMD_ADAPTER_DUMP
:
759 case CMD_XMIT_SEQUENCE64_CR
:
760 case CMD_XMIT_SEQUENCE64_CX
:
761 case CMD_XMIT_BCAST64_CN
:
762 case CMD_XMIT_BCAST64_CX
:
763 case CMD_ELS_REQUEST64_CR
:
764 case CMD_ELS_REQUEST64_CX
:
765 case CMD_FCP_IWRITE64_CR
:
766 case CMD_FCP_IWRITE64_CX
:
767 case CMD_FCP_IREAD64_CR
:
768 case CMD_FCP_IREAD64_CX
:
769 case CMD_FCP_ICMND64_CR
:
770 case CMD_FCP_ICMND64_CX
:
771 case CMD_FCP_TSEND64_CX
:
772 case CMD_FCP_TRSP64_CX
:
773 case CMD_FCP_TRECEIVE64_CX
:
774 case CMD_GEN_REQUEST64_CR
:
775 case CMD_GEN_REQUEST64_CX
:
776 case CMD_XMIT_ELS_RSP64_CX
:
777 case DSSCMD_IWRITE64_CR
:
778 case DSSCMD_IWRITE64_CX
:
779 case DSSCMD_IREAD64_CR
:
780 case DSSCMD_IREAD64_CX
:
781 type
= LPFC_SOL_IOCB
;
783 case CMD_ABORT_XRI_CN
:
784 case CMD_ABORT_XRI_CX
:
785 case CMD_CLOSE_XRI_CN
:
786 case CMD_CLOSE_XRI_CX
:
787 case CMD_XRI_ABORTED_CX
:
788 case CMD_ABORT_MXRI64_CN
:
789 case CMD_XMIT_BLS_RSP64_CX
:
790 type
= LPFC_ABORT_IOCB
;
792 case CMD_RCV_SEQUENCE_CX
:
793 case CMD_RCV_ELS_REQ_CX
:
794 case CMD_RCV_SEQUENCE64_CX
:
795 case CMD_RCV_ELS_REQ64_CX
:
796 case CMD_ASYNC_STATUS
:
797 case CMD_IOCB_RCV_SEQ64_CX
:
798 case CMD_IOCB_RCV_ELS64_CX
:
799 case CMD_IOCB_RCV_CONT64_CX
:
800 case CMD_IOCB_RET_XRI64_CX
:
801 type
= LPFC_UNSOL_IOCB
;
803 case CMD_IOCB_XMIT_MSEQ64_CR
:
804 case CMD_IOCB_XMIT_MSEQ64_CX
:
805 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
806 case CMD_IOCB_RCV_ELS_LIST64_CX
:
807 case CMD_IOCB_CLOSE_EXTENDED_CN
:
808 case CMD_IOCB_ABORT_EXTENDED_CN
:
809 case CMD_IOCB_RET_HBQE64_CN
:
810 case CMD_IOCB_FCP_IBIDIR64_CR
:
811 case CMD_IOCB_FCP_IBIDIR64_CX
:
812 case CMD_IOCB_FCP_ITASKMGT64_CX
:
813 case CMD_IOCB_LOGENTRY_CN
:
814 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
815 printk("%s - Unhandled SLI-3 Command x%x\n",
816 __func__
, iocb_cmnd
);
817 type
= LPFC_UNKNOWN_IOCB
;
820 type
= LPFC_UNKNOWN_IOCB
;
828 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
829 * @phba: Pointer to HBA context object.
831 * This function is called from SLI initialization code
832 * to configure every ring of the HBA's SLI interface. The
833 * caller is not required to hold any lock. This function issues
834 * a config_ring mailbox command for each ring.
835 * This function returns zero if successful else returns a negative
839 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
841 struct lpfc_sli
*psli
= &phba
->sli
;
846 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
850 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
851 for (i
= 0; i
< psli
->num_rings
; i
++) {
852 lpfc_config_ring(phba
, i
, pmb
);
853 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
854 if (rc
!= MBX_SUCCESS
) {
855 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
856 "0446 Adapter failed to init (%d), "
857 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
859 rc
, pmbox
->mbxCommand
,
860 pmbox
->mbxStatus
, i
);
861 phba
->link_state
= LPFC_HBA_ERROR
;
866 mempool_free(pmb
, phba
->mbox_mem_pool
);
871 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
872 * @phba: Pointer to HBA context object.
873 * @pring: Pointer to driver SLI ring object.
874 * @piocb: Pointer to the driver iocb object.
876 * This function is called with hbalock held. The function adds the
877 * new iocb to txcmplq of the given ring. This function always returns
878 * 0. If this function is called for ELS ring, this function checks if
879 * there is a vport associated with the ELS command. This function also
880 * starts els_tmofunc timer if this is an ELS command.
883 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
884 struct lpfc_iocbq
*piocb
)
886 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
887 piocb
->iocb_flag
|= LPFC_IO_ON_Q
;
888 pring
->txcmplq_cnt
++;
889 if (pring
->txcmplq_cnt
> pring
->txcmplq_max
)
890 pring
->txcmplq_max
= pring
->txcmplq_cnt
;
892 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
893 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
894 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
898 mod_timer(&piocb
->vport
->els_tmofunc
,
899 jiffies
+ HZ
* (phba
->fc_ratov
<< 1));
907 * lpfc_sli_ringtx_get - Get first element of the txq
908 * @phba: Pointer to HBA context object.
909 * @pring: Pointer to driver SLI ring object.
911 * This function is called with hbalock held to get next
912 * iocb in txq of the given ring. If there is any iocb in
913 * the txq, the function returns first iocb in the list after
914 * removing the iocb from the list, else it returns NULL.
917 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
919 struct lpfc_iocbq
*cmd_iocb
;
921 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
922 if (cmd_iocb
!= NULL
)
928 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
929 * @phba: Pointer to HBA context object.
930 * @pring: Pointer to driver SLI ring object.
932 * This function is called with hbalock held and the caller must post the
933 * iocb without releasing the lock. If the caller releases the lock,
934 * iocb slot returned by the function is not guaranteed to be available.
935 * The function returns pointer to the next available iocb slot if there
936 * is available slot in the ring, else it returns NULL.
937 * If the get index of the ring is ahead of the put index, the function
938 * will post an error attention event to the worker thread to take the
939 * HBA to offline state.
942 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
944 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
945 uint32_t max_cmd_idx
= pring
->numCiocb
;
946 if ((pring
->next_cmdidx
== pring
->cmdidx
) &&
947 (++pring
->next_cmdidx
>= max_cmd_idx
))
948 pring
->next_cmdidx
= 0;
950 if (unlikely(pring
->local_getidx
== pring
->next_cmdidx
)) {
952 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
954 if (unlikely(pring
->local_getidx
>= max_cmd_idx
)) {
955 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
956 "0315 Ring %d issue: portCmdGet %d "
957 "is bigger than cmd ring %d\n",
959 pring
->local_getidx
, max_cmd_idx
);
961 phba
->link_state
= LPFC_HBA_ERROR
;
963 * All error attention handlers are posted to
966 phba
->work_ha
|= HA_ERATT
;
967 phba
->work_hs
= HS_FFER3
;
969 lpfc_worker_wake_up(phba
);
974 if (pring
->local_getidx
== pring
->next_cmdidx
)
978 return lpfc_cmd_iocb(phba
, pring
);
982 * lpfc_sli_next_iotag - Get an iotag for the iocb
983 * @phba: Pointer to HBA context object.
984 * @iocbq: Pointer to driver iocb object.
986 * This function gets an iotag for the iocb. If there is no unused iotag and
987 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
988 * array and assigns a new iotag.
989 * The function returns the allocated iotag if successful, else returns zero.
990 * Zero is not a valid iotag.
991 * The caller is not required to hold any lock.
994 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
996 struct lpfc_iocbq
**new_arr
;
997 struct lpfc_iocbq
**old_arr
;
999 struct lpfc_sli
*psli
= &phba
->sli
;
1002 spin_lock_irq(&phba
->hbalock
);
1003 iotag
= psli
->last_iotag
;
1004 if(++iotag
< psli
->iocbq_lookup_len
) {
1005 psli
->last_iotag
= iotag
;
1006 psli
->iocbq_lookup
[iotag
] = iocbq
;
1007 spin_unlock_irq(&phba
->hbalock
);
1008 iocbq
->iotag
= iotag
;
1010 } else if (psli
->iocbq_lookup_len
< (0xffff
1011 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1012 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1013 spin_unlock_irq(&phba
->hbalock
);
1014 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1017 spin_lock_irq(&phba
->hbalock
);
1018 old_arr
= psli
->iocbq_lookup
;
1019 if (new_len
<= psli
->iocbq_lookup_len
) {
1020 /* highly unprobable case */
1022 iotag
= psli
->last_iotag
;
1023 if(++iotag
< psli
->iocbq_lookup_len
) {
1024 psli
->last_iotag
= iotag
;
1025 psli
->iocbq_lookup
[iotag
] = iocbq
;
1026 spin_unlock_irq(&phba
->hbalock
);
1027 iocbq
->iotag
= iotag
;
1030 spin_unlock_irq(&phba
->hbalock
);
1033 if (psli
->iocbq_lookup
)
1034 memcpy(new_arr
, old_arr
,
1035 ((psli
->last_iotag
+ 1) *
1036 sizeof (struct lpfc_iocbq
*)));
1037 psli
->iocbq_lookup
= new_arr
;
1038 psli
->iocbq_lookup_len
= new_len
;
1039 psli
->last_iotag
= iotag
;
1040 psli
->iocbq_lookup
[iotag
] = iocbq
;
1041 spin_unlock_irq(&phba
->hbalock
);
1042 iocbq
->iotag
= iotag
;
1047 spin_unlock_irq(&phba
->hbalock
);
1049 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1050 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1057 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1058 * @phba: Pointer to HBA context object.
1059 * @pring: Pointer to driver SLI ring object.
1060 * @iocb: Pointer to iocb slot in the ring.
1061 * @nextiocb: Pointer to driver iocb object which need to be
1062 * posted to firmware.
1064 * This function is called with hbalock held to post a new iocb to
1065 * the firmware. This function copies the new iocb to ring iocb slot and
1066 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1067 * a completion call back for this iocb else the function will free the
1071 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1072 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1077 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1080 if (pring
->ringno
== LPFC_ELS_RING
) {
1081 lpfc_debugfs_slow_ring_trc(phba
,
1082 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1083 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1084 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1085 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1089 * Issue iocb command to adapter
1091 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1093 pring
->stats
.iocb_cmd
++;
1096 * If there is no completion routine to call, we can release the
1097 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1098 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1100 if (nextiocb
->iocb_cmpl
)
1101 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1103 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1106 * Let the HBA know what IOCB slot will be the next one the
1107 * driver will put a command into.
1109 pring
->cmdidx
= pring
->next_cmdidx
;
1110 writel(pring
->cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1114 * lpfc_sli_update_full_ring - Update the chip attention register
1115 * @phba: Pointer to HBA context object.
1116 * @pring: Pointer to driver SLI ring object.
1118 * The caller is not required to hold any lock for calling this function.
1119 * This function updates the chip attention bits for the ring to inform firmware
1120 * that there are pending work to be done for this ring and requests an
1121 * interrupt when there is space available in the ring. This function is
1122 * called when the driver is unable to post more iocbs to the ring due
1123 * to unavailability of space in the ring.
1126 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1128 int ringno
= pring
->ringno
;
1130 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1135 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1136 * The HBA will tell us when an IOCB entry is available.
1138 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1139 readl(phba
->CAregaddr
); /* flush */
1141 pring
->stats
.iocb_cmd_full
++;
1145 * lpfc_sli_update_ring - Update chip attention register
1146 * @phba: Pointer to HBA context object.
1147 * @pring: Pointer to driver SLI ring object.
1149 * This function updates the chip attention register bit for the
1150 * given ring to inform HBA that there is more work to be done
1151 * in this ring. The caller is not required to hold any lock.
1154 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1156 int ringno
= pring
->ringno
;
1159 * Tell the HBA that there is work to do in this ring.
1161 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1163 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1164 readl(phba
->CAregaddr
); /* flush */
1169 * lpfc_sli_resume_iocb - Process iocbs in the txq
1170 * @phba: Pointer to HBA context object.
1171 * @pring: Pointer to driver SLI ring object.
1173 * This function is called with hbalock held to post pending iocbs
1174 * in the txq to the firmware. This function is called when driver
1175 * detects space available in the ring.
1178 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1181 struct lpfc_iocbq
*nextiocb
;
1185 * (a) there is anything on the txq to send
1187 * (c) link attention events can be processed (fcp ring only)
1188 * (d) IOCB processing is not blocked by the outstanding mbox command.
1190 if (pring
->txq_cnt
&&
1191 lpfc_is_link_up(phba
) &&
1192 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1193 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1195 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1196 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1197 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1200 lpfc_sli_update_ring(phba
, pring
);
1202 lpfc_sli_update_full_ring(phba
, pring
);
1209 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1210 * @phba: Pointer to HBA context object.
1211 * @hbqno: HBQ number.
1213 * This function is called with hbalock held to get the next
1214 * available slot for the given HBQ. If there is free slot
1215 * available for the HBQ it will return pointer to the next available
1216 * HBQ entry else it will return NULL.
1218 static struct lpfc_hbq_entry
*
1219 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1221 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1223 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1224 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1225 hbqp
->next_hbqPutIdx
= 0;
1227 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1228 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1229 uint32_t getidx
= le32_to_cpu(raw_index
);
1231 hbqp
->local_hbqGetIdx
= getidx
;
1233 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1234 lpfc_printf_log(phba
, KERN_ERR
,
1235 LOG_SLI
| LOG_VPORT
,
1236 "1802 HBQ %d: local_hbqGetIdx "
1237 "%u is > than hbqp->entry_count %u\n",
1238 hbqno
, hbqp
->local_hbqGetIdx
,
1241 phba
->link_state
= LPFC_HBA_ERROR
;
1245 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1249 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1254 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1255 * @phba: Pointer to HBA context object.
1257 * This function is called with no lock held to free all the
1258 * hbq buffers while uninitializing the SLI interface. It also
1259 * frees the HBQ buffers returned by the firmware but not yet
1260 * processed by the upper layers.
1263 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1265 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1266 struct hbq_dmabuf
*hbq_buf
;
1267 unsigned long flags
;
1271 hbq_count
= lpfc_sli_hbq_count();
1272 /* Return all memory used by all HBQs */
1273 spin_lock_irqsave(&phba
->hbalock
, flags
);
1274 for (i
= 0; i
< hbq_count
; ++i
) {
1275 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1276 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1277 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1278 list_del(&hbq_buf
->dbuf
.list
);
1279 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1281 phba
->hbqs
[i
].buffer_count
= 0;
1283 /* Return all HBQ buffer that are in-fly */
1284 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1286 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1287 list_del(&hbq_buf
->dbuf
.list
);
1288 if (hbq_buf
->tag
== -1) {
1289 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1292 hbqno
= hbq_buf
->tag
>> 16;
1293 if (hbqno
>= LPFC_MAX_HBQS
)
1294 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1297 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1302 /* Mark the HBQs not in use */
1303 phba
->hbq_in_use
= 0;
1304 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1308 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1309 * @phba: Pointer to HBA context object.
1310 * @hbqno: HBQ number.
1311 * @hbq_buf: Pointer to HBQ buffer.
1313 * This function is called with the hbalock held to post a
1314 * hbq buffer to the firmware. If the function finds an empty
1315 * slot in the HBQ, it will post the buffer. The function will return
1316 * pointer to the hbq entry if it successfully post the buffer
1317 * else it will return NULL.
1320 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1321 struct hbq_dmabuf
*hbq_buf
)
1323 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1327 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1328 * @phba: Pointer to HBA context object.
1329 * @hbqno: HBQ number.
1330 * @hbq_buf: Pointer to HBQ buffer.
1332 * This function is called with the hbalock held to post a hbq buffer to the
1333 * firmware. If the function finds an empty slot in the HBQ, it will post the
1334 * buffer and place it on the hbq_buffer_list. The function will return zero if
1335 * it successfully post the buffer else it will return an error.
1338 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1339 struct hbq_dmabuf
*hbq_buf
)
1341 struct lpfc_hbq_entry
*hbqe
;
1342 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1344 /* Get next HBQ entry slot to use */
1345 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1347 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1349 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1350 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1351 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1352 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1353 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1354 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1356 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1357 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1359 readl(phba
->hbq_put
+ hbqno
);
1360 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1367 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1368 * @phba: Pointer to HBA context object.
1369 * @hbqno: HBQ number.
1370 * @hbq_buf: Pointer to HBQ buffer.
1372 * This function is called with the hbalock held to post an RQE to the SLI4
1373 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1374 * the hbq_buffer_list and return zero, otherwise it will return an error.
1377 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1378 struct hbq_dmabuf
*hbq_buf
)
1381 struct lpfc_rqe hrqe
;
1382 struct lpfc_rqe drqe
;
1384 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1385 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1386 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1387 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1388 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1393 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1397 /* HBQ for ELS and CT traffic. */
1398 static struct lpfc_hbq_init lpfc_els_hbq
= {
1403 .ring_mask
= (1 << LPFC_ELS_RING
),
1409 /* HBQ for the extra ring if needed */
1410 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1415 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1422 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1428 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1429 * @phba: Pointer to HBA context object.
1430 * @hbqno: HBQ number.
1431 * @count: Number of HBQ buffers to be posted.
1433 * This function is called with no lock held to post more hbq buffers to the
1434 * given HBQ. The function returns the number of HBQ buffers successfully
1438 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1440 uint32_t i
, posted
= 0;
1441 unsigned long flags
;
1442 struct hbq_dmabuf
*hbq_buffer
;
1443 LIST_HEAD(hbq_buf_list
);
1444 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1447 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1448 lpfc_hbq_defs
[hbqno
]->entry_count
)
1449 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1450 phba
->hbqs
[hbqno
].buffer_count
;
1453 /* Allocate HBQ entries */
1454 for (i
= 0; i
< count
; i
++) {
1455 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1458 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1460 /* Check whether HBQ is still in use */
1461 spin_lock_irqsave(&phba
->hbalock
, flags
);
1462 if (!phba
->hbq_in_use
)
1464 while (!list_empty(&hbq_buf_list
)) {
1465 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1467 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1469 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1470 phba
->hbqs
[hbqno
].buffer_count
++;
1473 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1475 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1478 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1479 while (!list_empty(&hbq_buf_list
)) {
1480 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1482 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1488 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1489 * @phba: Pointer to HBA context object.
1492 * This function posts more buffers to the HBQ. This function
1493 * is called with no lock held. The function returns the number of HBQ entries
1494 * successfully allocated.
1497 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1499 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1502 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1503 lpfc_hbq_defs
[qno
]->add_count
);
1507 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1508 * @phba: Pointer to HBA context object.
1509 * @qno: HBQ queue number.
1511 * This function is called from SLI initialization code path with
1512 * no lock held to post initial HBQ buffers to firmware. The
1513 * function returns the number of HBQ entries successfully allocated.
1516 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1518 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1519 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1520 lpfc_hbq_defs
[qno
]->entry_count
);
1522 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1523 lpfc_hbq_defs
[qno
]->init_count
);
1527 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1528 * @phba: Pointer to HBA context object.
1529 * @hbqno: HBQ number.
1531 * This function removes the first hbq buffer on an hbq list and returns a
1532 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1534 static struct hbq_dmabuf
*
1535 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1537 struct lpfc_dmabuf
*d_buf
;
1539 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1542 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1546 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1547 * @phba: Pointer to HBA context object.
1548 * @tag: Tag of the hbq buffer.
1550 * This function is called with hbalock held. This function searches
1551 * for the hbq buffer associated with the given tag in the hbq buffer
1552 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1555 static struct hbq_dmabuf
*
1556 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
1558 struct lpfc_dmabuf
*d_buf
;
1559 struct hbq_dmabuf
*hbq_buf
;
1563 if (hbqno
>= LPFC_MAX_HBQS
)
1566 spin_lock_irq(&phba
->hbalock
);
1567 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
1568 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1569 if (hbq_buf
->tag
== tag
) {
1570 spin_unlock_irq(&phba
->hbalock
);
1574 spin_unlock_irq(&phba
->hbalock
);
1575 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
1576 "1803 Bad hbq tag. Data: x%x x%x\n",
1577 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
1582 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1583 * @phba: Pointer to HBA context object.
1584 * @hbq_buffer: Pointer to HBQ buffer.
1586 * This function is called with hbalock. This function gives back
1587 * the hbq buffer to firmware. If the HBQ does not have space to
1588 * post the buffer, it will free the buffer.
1591 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
1596 hbqno
= hbq_buffer
->tag
>> 16;
1597 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
1598 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1603 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1604 * @mbxCommand: mailbox command code.
1606 * This function is called by the mailbox event handler function to verify
1607 * that the completed mailbox command is a legitimate mailbox command. If the
1608 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1609 * and the mailbox event handler will take the HBA offline.
1612 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
1616 switch (mbxCommand
) {
1620 case MBX_WRITE_VPARMS
:
1621 case MBX_RUN_BIU_DIAG
:
1624 case MBX_CONFIG_LINK
:
1625 case MBX_CONFIG_RING
:
1626 case MBX_RESET_RING
:
1627 case MBX_READ_CONFIG
:
1628 case MBX_READ_RCONFIG
:
1629 case MBX_READ_SPARM
:
1630 case MBX_READ_STATUS
:
1634 case MBX_READ_LNK_STAT
:
1636 case MBX_UNREG_LOGIN
:
1639 case MBX_DUMP_MEMORY
:
1640 case MBX_DUMP_CONTEXT
:
1643 case MBX_UPDATE_CFG
:
1645 case MBX_DEL_LD_ENTRY
:
1646 case MBX_RUN_PROGRAM
:
1648 case MBX_SET_VARIABLE
:
1649 case MBX_UNREG_D_ID
:
1650 case MBX_KILL_BOARD
:
1651 case MBX_CONFIG_FARP
:
1654 case MBX_RUN_BIU_DIAG64
:
1655 case MBX_CONFIG_PORT
:
1656 case MBX_READ_SPARM64
:
1657 case MBX_READ_RPI64
:
1658 case MBX_REG_LOGIN64
:
1662 case MBX_LOAD_EXP_ROM
:
1663 case MBX_ASYNCEVT_ENABLE
:
1667 case MBX_PORT_CAPABILITIES
:
1668 case MBX_PORT_IOV_CONTROL
:
1669 case MBX_SLI4_CONFIG
:
1670 case MBX_SLI4_REQ_FTRS
:
1672 case MBX_UNREG_FCFI
:
1677 case MBX_RESUME_RPI
:
1678 case MBX_READ_EVENT_LOG_STATUS
:
1679 case MBX_READ_EVENT_LOG
:
1680 case MBX_SECURITY_MGMT
:
1692 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
1693 * @phba: Pointer to HBA context object.
1694 * @pmboxq: Pointer to mailbox command.
1696 * This is completion handler function for mailbox commands issued from
1697 * lpfc_sli_issue_mbox_wait function. This function is called by the
1698 * mailbox event handler function with no lock held. This function
1699 * will wake up thread waiting on the wait queue pointed by context1
1703 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
1705 wait_queue_head_t
*pdone_q
;
1706 unsigned long drvr_flag
;
1709 * If pdone_q is empty, the driver thread gave up waiting and
1710 * continued running.
1712 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
1713 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
1714 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
1716 wake_up_interruptible(pdone_q
);
1717 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
1723 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
1724 * @phba: Pointer to HBA context object.
1725 * @pmb: Pointer to mailbox object.
1727 * This function is the default mailbox completion handler. It
1728 * frees the memory resources associated with the completed mailbox
1729 * command. If the completed command is a REG_LOGIN mailbox command,
1730 * this function will issue a UREG_LOGIN to re-claim the RPI.
1733 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1735 struct lpfc_vport
*vport
= pmb
->vport
;
1736 struct lpfc_dmabuf
*mp
;
1737 struct lpfc_nodelist
*ndlp
;
1741 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1744 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1748 if ((pmb
->u
.mb
.mbxCommand
== MBX_UNREG_LOGIN
) &&
1749 (phba
->sli_rev
== LPFC_SLI_REV4
))
1750 lpfc_sli4_free_rpi(phba
, pmb
->u
.mb
.un
.varUnregLogin
.rpi
);
1753 * If a REG_LOGIN succeeded after node is destroyed or node
1754 * is in re-discovery driver need to cleanup the RPI.
1756 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1757 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
1758 !pmb
->u
.mb
.mbxStatus
) {
1759 rpi
= pmb
->u
.mb
.un
.varWords
[0];
1760 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
- phba
->vpi_base
;
1761 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
1762 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1763 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1764 if (rc
!= MBX_NOT_FINISHED
)
1768 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1769 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
1770 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1771 !pmb
->u
.mb
.mbxStatus
) {
1772 lpfc_unreg_vpi(phba
, pmb
->u
.mb
.un
.varRegVpi
.vpi
, pmb
);
1774 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1775 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1776 if (rc
!= MBX_NOT_FINISHED
)
1780 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
1781 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
1783 pmb
->context2
= NULL
;
1786 /* Check security permission status on INIT_LINK mailbox command */
1787 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
1788 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
1789 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
1790 "2860 SLI authentication is required "
1791 "for INIT_LINK but has not done yet\n");
1793 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
1794 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
1796 mempool_free(pmb
, phba
->mbox_mem_pool
);
1800 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1801 * @phba: Pointer to HBA context object.
1803 * This function is called with no lock held. This function processes all
1804 * the completed mailbox commands and gives it to upper layers. The interrupt
1805 * service routine processes mailbox completion interrupt and adds completed
1806 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1807 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1808 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1809 * function returns the mailbox commands to the upper layer by calling the
1810 * completion handler function of each mailbox.
1813 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
1820 phba
->sli
.slistat
.mbox_event
++;
1822 /* Get all completed mailboxe buffers into the cmplq */
1823 spin_lock_irq(&phba
->hbalock
);
1824 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
1825 spin_unlock_irq(&phba
->hbalock
);
1827 /* Get a Mailbox buffer to setup mailbox commands for callback */
1829 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
1835 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
1837 lpfc_debugfs_disc_trc(pmb
->vport
,
1838 LPFC_DISC_TRC_MBOX_VPORT
,
1839 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1840 (uint32_t)pmbox
->mbxCommand
,
1841 pmbox
->un
.varWords
[0],
1842 pmbox
->un
.varWords
[1]);
1845 lpfc_debugfs_disc_trc(phba
->pport
,
1847 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1848 (uint32_t)pmbox
->mbxCommand
,
1849 pmbox
->un
.varWords
[0],
1850 pmbox
->un
.varWords
[1]);
1855 * It is a fatal error if unknown mbox command completion.
1857 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
1859 /* Unknown mailbox command compl */
1860 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
1861 "(%d):0323 Unknown Mailbox command "
1863 pmb
->vport
? pmb
->vport
->vpi
: 0,
1865 lpfc_sli4_mbox_opcode_get(phba
, pmb
));
1866 phba
->link_state
= LPFC_HBA_ERROR
;
1867 phba
->work_hs
= HS_FFER3
;
1868 lpfc_handle_eratt(phba
);
1872 if (pmbox
->mbxStatus
) {
1873 phba
->sli
.slistat
.mbox_stat_err
++;
1874 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
1875 /* Mbox cmd cmpl error - RETRYing */
1876 lpfc_printf_log(phba
, KERN_INFO
,
1878 "(%d):0305 Mbox cmd cmpl "
1879 "error - RETRYing Data: x%x "
1880 "(x%x) x%x x%x x%x\n",
1881 pmb
->vport
? pmb
->vport
->vpi
:0,
1883 lpfc_sli4_mbox_opcode_get(phba
,
1886 pmbox
->un
.varWords
[0],
1887 pmb
->vport
->port_state
);
1888 pmbox
->mbxStatus
= 0;
1889 pmbox
->mbxOwner
= OWN_HOST
;
1890 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1891 if (rc
!= MBX_NOT_FINISHED
)
1896 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1897 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
1898 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1899 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1900 pmb
->vport
? pmb
->vport
->vpi
: 0,
1902 lpfc_sli4_mbox_opcode_get(phba
, pmb
),
1904 *((uint32_t *) pmbox
),
1905 pmbox
->un
.varWords
[0],
1906 pmbox
->un
.varWords
[1],
1907 pmbox
->un
.varWords
[2],
1908 pmbox
->un
.varWords
[3],
1909 pmbox
->un
.varWords
[4],
1910 pmbox
->un
.varWords
[5],
1911 pmbox
->un
.varWords
[6],
1912 pmbox
->un
.varWords
[7]);
1915 pmb
->mbox_cmpl(phba
,pmb
);
1921 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1922 * @phba: Pointer to HBA context object.
1923 * @pring: Pointer to driver SLI ring object.
1926 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1927 * is set in the tag the buffer is posted for a particular exchange,
1928 * the function will return the buffer without replacing the buffer.
1929 * If the buffer is for unsolicited ELS or CT traffic, this function
1930 * returns the buffer and also posts another buffer to the firmware.
1932 static struct lpfc_dmabuf
*
1933 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
1934 struct lpfc_sli_ring
*pring
,
1937 struct hbq_dmabuf
*hbq_entry
;
1939 if (tag
& QUE_BUFTAG_BIT
)
1940 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
1941 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
1944 return &hbq_entry
->dbuf
;
1948 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1949 * @phba: Pointer to HBA context object.
1950 * @pring: Pointer to driver SLI ring object.
1951 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1952 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1953 * @fch_type: the type for the first frame of the sequence.
1955 * This function is called with no lock held. This function uses the r_ctl and
1956 * type of the received sequence to find the correct callback function to call
1957 * to process the sequence.
1960 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1961 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
1966 /* unSolicited Responses */
1967 if (pring
->prt
[0].profile
) {
1968 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
1969 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
1973 /* We must search, based on rctl / type
1974 for the right routine */
1975 for (i
= 0; i
< pring
->num_mask
; i
++) {
1976 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
1977 (pring
->prt
[i
].type
== fch_type
)) {
1978 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1979 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1980 (phba
, pring
, saveq
);
1988 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1989 * @phba: Pointer to HBA context object.
1990 * @pring: Pointer to driver SLI ring object.
1991 * @saveq: Pointer to the unsolicited iocb.
1993 * This function is called with no lock held by the ring event handler
1994 * when there is an unsolicited iocb posted to the response ring by the
1995 * firmware. This function gets the buffer associated with the iocbs
1996 * and calls the event handler for the ring. This function handles both
1997 * qring buffers and hbq buffers.
1998 * When the function returns 1 the caller can free the iocb object otherwise
1999 * upper layer functions will free the iocb objects.
2002 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2003 struct lpfc_iocbq
*saveq
)
2007 uint32_t Rctl
, Type
;
2009 struct lpfc_iocbq
*iocbq
;
2010 struct lpfc_dmabuf
*dmzbuf
;
2013 irsp
= &(saveq
->iocb
);
2015 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2016 if (pring
->lpfc_sli_rcv_async_status
)
2017 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2019 lpfc_printf_log(phba
,
2022 "0316 Ring %d handler: unexpected "
2023 "ASYNC_STATUS iocb received evt_code "
2026 irsp
->un
.asyncstat
.evt_code
);
2030 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2031 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2032 if (irsp
->ulpBdeCount
> 0) {
2033 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2034 irsp
->un
.ulpWord
[3]);
2035 lpfc_in_buf_free(phba
, dmzbuf
);
2038 if (irsp
->ulpBdeCount
> 1) {
2039 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2040 irsp
->unsli3
.sli3Words
[3]);
2041 lpfc_in_buf_free(phba
, dmzbuf
);
2044 if (irsp
->ulpBdeCount
> 2) {
2045 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2046 irsp
->unsli3
.sli3Words
[7]);
2047 lpfc_in_buf_free(phba
, dmzbuf
);
2053 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2054 if (irsp
->ulpBdeCount
!= 0) {
2055 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2056 irsp
->un
.ulpWord
[3]);
2057 if (!saveq
->context2
)
2058 lpfc_printf_log(phba
,
2061 "0341 Ring %d Cannot find buffer for "
2062 "an unsolicited iocb. tag 0x%x\n",
2064 irsp
->un
.ulpWord
[3]);
2066 if (irsp
->ulpBdeCount
== 2) {
2067 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2068 irsp
->unsli3
.sli3Words
[7]);
2069 if (!saveq
->context3
)
2070 lpfc_printf_log(phba
,
2073 "0342 Ring %d Cannot find buffer for an"
2074 " unsolicited iocb. tag 0x%x\n",
2076 irsp
->unsli3
.sli3Words
[7]);
2078 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2079 irsp
= &(iocbq
->iocb
);
2080 if (irsp
->ulpBdeCount
!= 0) {
2081 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2082 irsp
->un
.ulpWord
[3]);
2083 if (!iocbq
->context2
)
2084 lpfc_printf_log(phba
,
2087 "0343 Ring %d Cannot find "
2088 "buffer for an unsolicited iocb"
2089 ". tag 0x%x\n", pring
->ringno
,
2090 irsp
->un
.ulpWord
[3]);
2092 if (irsp
->ulpBdeCount
== 2) {
2093 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2094 irsp
->unsli3
.sli3Words
[7]);
2095 if (!iocbq
->context3
)
2096 lpfc_printf_log(phba
,
2099 "0344 Ring %d Cannot find "
2100 "buffer for an unsolicited "
2103 irsp
->unsli3
.sli3Words
[7]);
2107 if (irsp
->ulpBdeCount
!= 0 &&
2108 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2109 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2112 /* search continue save q for same XRI */
2113 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2114 if (iocbq
->iocb
.ulpContext
== saveq
->iocb
.ulpContext
) {
2115 list_add_tail(&saveq
->list
, &iocbq
->list
);
2121 list_add_tail(&saveq
->clist
,
2122 &pring
->iocb_continue_saveq
);
2123 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2124 list_del_init(&iocbq
->clist
);
2126 irsp
= &(saveq
->iocb
);
2130 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2131 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2132 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2133 Rctl
= FC_RCTL_ELS_REQ
;
2136 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2137 Rctl
= w5p
->hcsw
.Rctl
;
2138 Type
= w5p
->hcsw
.Type
;
2140 /* Firmware Workaround */
2141 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2142 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2143 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2144 Rctl
= FC_RCTL_ELS_REQ
;
2146 w5p
->hcsw
.Rctl
= Rctl
;
2147 w5p
->hcsw
.Type
= Type
;
2151 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2152 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2153 "0313 Ring %d handler: unexpected Rctl x%x "
2154 "Type x%x received\n",
2155 pring
->ringno
, Rctl
, Type
);
2161 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2162 * @phba: Pointer to HBA context object.
2163 * @pring: Pointer to driver SLI ring object.
2164 * @prspiocb: Pointer to response iocb object.
2166 * This function looks up the iocb_lookup table to get the command iocb
2167 * corresponding to the given response iocb using the iotag of the
2168 * response iocb. This function is called with the hbalock held.
2169 * This function returns the command iocb object if it finds the command
2170 * iocb else returns NULL.
2172 static struct lpfc_iocbq
*
2173 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2174 struct lpfc_sli_ring
*pring
,
2175 struct lpfc_iocbq
*prspiocb
)
2177 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2180 iotag
= prspiocb
->iocb
.ulpIoTag
;
2182 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2183 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2184 list_del_init(&cmd_iocb
->list
);
2185 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2186 pring
->txcmplq_cnt
--;
2187 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2192 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2193 "0317 iotag x%x is out off "
2194 "range: max iotag x%x wd0 x%x\n",
2195 iotag
, phba
->sli
.last_iotag
,
2196 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2201 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2202 * @phba: Pointer to HBA context object.
2203 * @pring: Pointer to driver SLI ring object.
2206 * This function looks up the iocb_lookup table to get the command iocb
2207 * corresponding to the given iotag. This function is called with the
2209 * This function returns the command iocb object if it finds the command
2210 * iocb else returns NULL.
2212 static struct lpfc_iocbq
*
2213 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2214 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2216 struct lpfc_iocbq
*cmd_iocb
;
2218 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2219 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2220 list_del_init(&cmd_iocb
->list
);
2221 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2222 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2223 pring
->txcmplq_cnt
--;
2228 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2229 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2230 iotag
, phba
->sli
.last_iotag
);
2235 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2236 * @phba: Pointer to HBA context object.
2237 * @pring: Pointer to driver SLI ring object.
2238 * @saveq: Pointer to the response iocb to be processed.
2240 * This function is called by the ring event handler for non-fcp
2241 * rings when there is a new response iocb in the response ring.
2242 * The caller is not required to hold any locks. This function
2243 * gets the command iocb associated with the response iocb and
2244 * calls the completion handler for the command iocb. If there
2245 * is no completion handler, the function will free the resources
2246 * associated with command iocb. If the response iocb is for
2247 * an already aborted command iocb, the status of the completion
2248 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2249 * This function always returns 1.
2252 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2253 struct lpfc_iocbq
*saveq
)
2255 struct lpfc_iocbq
*cmdiocbp
;
2257 unsigned long iflag
;
2259 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2260 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2261 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2262 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2265 if (cmdiocbp
->iocb_cmpl
) {
2267 * If an ELS command failed send an event to mgmt
2270 if (saveq
->iocb
.ulpStatus
&&
2271 (pring
->ringno
== LPFC_ELS_RING
) &&
2272 (cmdiocbp
->iocb
.ulpCommand
==
2273 CMD_ELS_REQUEST64_CR
))
2274 lpfc_send_els_failure_event(phba
,
2278 * Post all ELS completions to the worker thread.
2279 * All other are passed to the completion callback.
2281 if (pring
->ringno
== LPFC_ELS_RING
) {
2282 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2283 (cmdiocbp
->iocb_flag
&
2284 LPFC_DRIVER_ABORTED
)) {
2285 spin_lock_irqsave(&phba
->hbalock
,
2287 cmdiocbp
->iocb_flag
&=
2288 ~LPFC_DRIVER_ABORTED
;
2289 spin_unlock_irqrestore(&phba
->hbalock
,
2291 saveq
->iocb
.ulpStatus
=
2292 IOSTAT_LOCAL_REJECT
;
2293 saveq
->iocb
.un
.ulpWord
[4] =
2296 /* Firmware could still be in progress
2297 * of DMAing payload, so don't free data
2298 * buffer till after a hbeat.
2300 spin_lock_irqsave(&phba
->hbalock
,
2302 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2303 spin_unlock_irqrestore(&phba
->hbalock
,
2306 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2307 if (saveq
->iocb_flag
&
2308 LPFC_EXCHANGE_BUSY
) {
2309 /* Set cmdiocb flag for the
2310 * exchange busy so sgl (xri)
2311 * will not be released until
2312 * the abort xri is received
2316 &phba
->hbalock
, iflag
);
2317 cmdiocbp
->iocb_flag
|=
2319 spin_unlock_irqrestore(
2320 &phba
->hbalock
, iflag
);
2322 if (cmdiocbp
->iocb_flag
&
2323 LPFC_DRIVER_ABORTED
) {
2325 * Clear LPFC_DRIVER_ABORTED
2326 * bit in case it was driver
2330 &phba
->hbalock
, iflag
);
2331 cmdiocbp
->iocb_flag
&=
2332 ~LPFC_DRIVER_ABORTED
;
2333 spin_unlock_irqrestore(
2334 &phba
->hbalock
, iflag
);
2335 cmdiocbp
->iocb
.ulpStatus
=
2336 IOSTAT_LOCAL_REJECT
;
2337 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2338 IOERR_ABORT_REQUESTED
;
2340 * For SLI4, irsiocb contains
2341 * NO_XRI in sli_xritag, it
2342 * shall not affect releasing
2343 * sgl (xri) process.
2345 saveq
->iocb
.ulpStatus
=
2346 IOSTAT_LOCAL_REJECT
;
2347 saveq
->iocb
.un
.ulpWord
[4] =
2350 &phba
->hbalock
, iflag
);
2352 LPFC_DELAY_MEM_FREE
;
2353 spin_unlock_irqrestore(
2354 &phba
->hbalock
, iflag
);
2358 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2360 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2363 * Unknown initiating command based on the response iotag.
2364 * This could be the case on the ELS ring because of
2367 if (pring
->ringno
!= LPFC_ELS_RING
) {
2369 * Ring <ringno> handler: unexpected completion IoTag
2372 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2373 "0322 Ring %d handler: "
2374 "unexpected completion IoTag x%x "
2375 "Data: x%x x%x x%x x%x\n",
2377 saveq
->iocb
.ulpIoTag
,
2378 saveq
->iocb
.ulpStatus
,
2379 saveq
->iocb
.un
.ulpWord
[4],
2380 saveq
->iocb
.ulpCommand
,
2381 saveq
->iocb
.ulpContext
);
2389 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2390 * @phba: Pointer to HBA context object.
2391 * @pring: Pointer to driver SLI ring object.
2393 * This function is called from the iocb ring event handlers when
2394 * put pointer is ahead of the get pointer for a ring. This function signal
2395 * an error attention condition to the worker thread and the worker
2396 * thread will transition the HBA to offline state.
2399 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2401 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2403 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2404 * rsp ring <portRspMax>
2406 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2407 "0312 Ring %d handler: portRspPut %d "
2408 "is bigger than rsp ring %d\n",
2409 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2412 phba
->link_state
= LPFC_HBA_ERROR
;
2415 * All error attention handlers are posted to
2418 phba
->work_ha
|= HA_ERATT
;
2419 phba
->work_hs
= HS_FFER3
;
2421 lpfc_worker_wake_up(phba
);
2427 * lpfc_poll_eratt - Error attention polling timer timeout handler
2428 * @ptr: Pointer to address of HBA context object.
2430 * This function is invoked by the Error Attention polling timer when the
2431 * timer times out. It will check the SLI Error Attention register for
2432 * possible attention events. If so, it will post an Error Attention event
2433 * and wake up worker thread to process it. Otherwise, it will set up the
2434 * Error Attention polling timer for the next poll.
2436 void lpfc_poll_eratt(unsigned long ptr
)
2438 struct lpfc_hba
*phba
;
2441 phba
= (struct lpfc_hba
*)ptr
;
2443 /* Check chip HA register for error event */
2444 eratt
= lpfc_sli_check_eratt(phba
);
2447 /* Tell the worker thread there is work to do */
2448 lpfc_worker_wake_up(phba
);
2450 /* Restart the timer for next eratt poll */
2451 mod_timer(&phba
->eratt_poll
, jiffies
+
2452 HZ
* LPFC_ERATT_POLL_INTERVAL
);
2458 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2459 * @phba: Pointer to HBA context object.
2460 * @pring: Pointer to driver SLI ring object.
2461 * @mask: Host attention register mask for this ring.
2463 * This function is called from the interrupt context when there is a ring
2464 * event for the fcp ring. The caller does not hold any lock.
2465 * The function processes each response iocb in the response ring until it
2466 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2467 * LE bit set. The function will call the completion handler of the command iocb
2468 * if the response iocb indicates a completion for a command iocb or it is
2469 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2470 * function if this is an unsolicited iocb.
2471 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2472 * to check it explicitly.
2475 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2476 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2478 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2479 IOCB_t
*irsp
= NULL
;
2480 IOCB_t
*entry
= NULL
;
2481 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2482 struct lpfc_iocbq rspiocbq
;
2484 uint32_t portRspPut
, portRspMax
;
2486 lpfc_iocb_type type
;
2487 unsigned long iflag
;
2488 uint32_t rsp_cmpl
= 0;
2490 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2491 pring
->stats
.iocb_event
++;
2494 * The next available response entry should never exceed the maximum
2495 * entries. If it does, treat it as an adapter hardware error.
2497 portRspMax
= pring
->numRiocb
;
2498 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2499 if (unlikely(portRspPut
>= portRspMax
)) {
2500 lpfc_sli_rsp_pointers_error(phba
, pring
);
2501 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2504 if (phba
->fcp_ring_in_use
) {
2505 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2508 phba
->fcp_ring_in_use
= 1;
2511 while (pring
->rspidx
!= portRspPut
) {
2513 * Fetch an entry off the ring and copy it into a local data
2514 * structure. The copy involves a byte-swap since the
2515 * network byte order and pci byte orders are different.
2517 entry
= lpfc_resp_iocb(phba
, pring
);
2518 phba
->last_completion_time
= jiffies
;
2520 if (++pring
->rspidx
>= portRspMax
)
2523 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2524 (uint32_t *) &rspiocbq
.iocb
,
2525 phba
->iocb_rsp_size
);
2526 INIT_LIST_HEAD(&(rspiocbq
.list
));
2527 irsp
= &rspiocbq
.iocb
;
2529 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2530 pring
->stats
.iocb_rsp
++;
2533 if (unlikely(irsp
->ulpStatus
)) {
2535 * If resource errors reported from HBA, reduce
2536 * queuedepths of the SCSI device.
2538 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2539 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2540 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2541 phba
->lpfc_rampdown_queue_depth(phba
);
2542 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2545 /* Rsp ring <ringno> error: IOCB */
2546 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2547 "0336 Rsp Ring %d error: IOCB Data: "
2548 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2550 irsp
->un
.ulpWord
[0],
2551 irsp
->un
.ulpWord
[1],
2552 irsp
->un
.ulpWord
[2],
2553 irsp
->un
.ulpWord
[3],
2554 irsp
->un
.ulpWord
[4],
2555 irsp
->un
.ulpWord
[5],
2556 *(uint32_t *)&irsp
->un1
,
2557 *((uint32_t *)&irsp
->un1
+ 1));
2561 case LPFC_ABORT_IOCB
:
2564 * Idle exchange closed via ABTS from port. No iocb
2565 * resources need to be recovered.
2567 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
2568 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2569 "0333 IOCB cmd 0x%x"
2570 " processed. Skipping"
2576 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
2578 if (unlikely(!cmdiocbq
))
2580 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
2581 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
2582 if (cmdiocbq
->iocb_cmpl
) {
2583 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2584 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
2586 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2589 case LPFC_UNSOL_IOCB
:
2590 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2591 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
2592 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2595 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2596 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2597 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2598 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
2600 dev_warn(&((phba
->pcidev
)->dev
),
2602 phba
->brd_no
, adaptermsg
);
2604 /* Unknown IOCB command */
2605 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2606 "0334 Unknown IOCB command "
2607 "Data: x%x, x%x x%x x%x x%x\n",
2608 type
, irsp
->ulpCommand
,
2617 * The response IOCB has been processed. Update the ring
2618 * pointer in SLIM. If the port response put pointer has not
2619 * been updated, sync the pgp->rspPutInx and fetch the new port
2620 * response put pointer.
2622 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2624 if (pring
->rspidx
== portRspPut
)
2625 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2628 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
2629 pring
->stats
.iocb_rsp_full
++;
2630 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2631 writel(status
, phba
->CAregaddr
);
2632 readl(phba
->CAregaddr
);
2634 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2635 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2636 pring
->stats
.iocb_cmd_empty
++;
2638 /* Force update of the local copy of cmdGetInx */
2639 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2640 lpfc_sli_resume_iocb(phba
, pring
);
2642 if ((pring
->lpfc_sli_cmd_available
))
2643 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2647 phba
->fcp_ring_in_use
= 0;
2648 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2653 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2654 * @phba: Pointer to HBA context object.
2655 * @pring: Pointer to driver SLI ring object.
2656 * @rspiocbp: Pointer to driver response IOCB object.
2658 * This function is called from the worker thread when there is a slow-path
2659 * response IOCB to process. This function chains all the response iocbs until
2660 * seeing the iocb with the LE bit set. The function will call
2661 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2662 * completion of a command iocb. The function will call the
2663 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2664 * The function frees the resources or calls the completion handler if this
2665 * iocb is an abort completion. The function returns NULL when the response
2666 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2667 * this function shall chain the iocb on to the iocb_continueq and return the
2668 * response iocb passed in.
2670 static struct lpfc_iocbq
*
2671 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2672 struct lpfc_iocbq
*rspiocbp
)
2674 struct lpfc_iocbq
*saveq
;
2675 struct lpfc_iocbq
*cmdiocbp
;
2676 struct lpfc_iocbq
*next_iocb
;
2677 IOCB_t
*irsp
= NULL
;
2678 uint32_t free_saveq
;
2679 uint8_t iocb_cmd_type
;
2680 lpfc_iocb_type type
;
2681 unsigned long iflag
;
2684 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2685 /* First add the response iocb to the countinueq list */
2686 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
2687 pring
->iocb_continueq_cnt
++;
2689 /* Now, determine whetehr the list is completed for processing */
2690 irsp
= &rspiocbp
->iocb
;
2693 * By default, the driver expects to free all resources
2694 * associated with this iocb completion.
2697 saveq
= list_get_first(&pring
->iocb_continueq
,
2698 struct lpfc_iocbq
, list
);
2699 irsp
= &(saveq
->iocb
);
2700 list_del_init(&pring
->iocb_continueq
);
2701 pring
->iocb_continueq_cnt
= 0;
2703 pring
->stats
.iocb_rsp
++;
2706 * If resource errors reported from HBA, reduce
2707 * queuedepths of the SCSI device.
2709 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2710 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2711 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2712 phba
->lpfc_rampdown_queue_depth(phba
);
2713 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2716 if (irsp
->ulpStatus
) {
2717 /* Rsp ring <ringno> error: IOCB */
2718 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2719 "0328 Rsp Ring %d error: "
2724 "x%x x%x x%x x%x\n",
2726 irsp
->un
.ulpWord
[0],
2727 irsp
->un
.ulpWord
[1],
2728 irsp
->un
.ulpWord
[2],
2729 irsp
->un
.ulpWord
[3],
2730 irsp
->un
.ulpWord
[4],
2731 irsp
->un
.ulpWord
[5],
2732 *(((uint32_t *) irsp
) + 6),
2733 *(((uint32_t *) irsp
) + 7),
2734 *(((uint32_t *) irsp
) + 8),
2735 *(((uint32_t *) irsp
) + 9),
2736 *(((uint32_t *) irsp
) + 10),
2737 *(((uint32_t *) irsp
) + 11),
2738 *(((uint32_t *) irsp
) + 12),
2739 *(((uint32_t *) irsp
) + 13),
2740 *(((uint32_t *) irsp
) + 14),
2741 *(((uint32_t *) irsp
) + 15));
2745 * Fetch the IOCB command type and call the correct completion
2746 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2747 * get freed back to the lpfc_iocb_list by the discovery
2750 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
2751 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
2754 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2755 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
2756 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2759 case LPFC_UNSOL_IOCB
:
2760 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2761 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
2762 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2767 case LPFC_ABORT_IOCB
:
2769 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
2770 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
2773 /* Call the specified completion routine */
2774 if (cmdiocbp
->iocb_cmpl
) {
2775 spin_unlock_irqrestore(&phba
->hbalock
,
2777 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
2779 spin_lock_irqsave(&phba
->hbalock
,
2782 __lpfc_sli_release_iocbq(phba
,
2787 case LPFC_UNKNOWN_IOCB
:
2788 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2789 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2790 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2791 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
2793 dev_warn(&((phba
->pcidev
)->dev
),
2795 phba
->brd_no
, adaptermsg
);
2797 /* Unknown IOCB command */
2798 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2799 "0335 Unknown IOCB "
2800 "command Data: x%x "
2811 list_for_each_entry_safe(rspiocbp
, next_iocb
,
2812 &saveq
->list
, list
) {
2813 list_del(&rspiocbp
->list
);
2814 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
2816 __lpfc_sli_release_iocbq(phba
, saveq
);
2820 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2825 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2826 * @phba: Pointer to HBA context object.
2827 * @pring: Pointer to driver SLI ring object.
2828 * @mask: Host attention register mask for this ring.
2830 * This routine wraps the actual slow_ring event process routine from the
2831 * API jump table function pointer from the lpfc_hba struct.
2834 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
2835 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2837 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
2841 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2842 * @phba: Pointer to HBA context object.
2843 * @pring: Pointer to driver SLI ring object.
2844 * @mask: Host attention register mask for this ring.
2846 * This function is called from the worker thread when there is a ring event
2847 * for non-fcp rings. The caller does not hold any lock. The function will
2848 * remove each response iocb in the response ring and calls the handle
2849 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2852 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
2853 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2855 struct lpfc_pgp
*pgp
;
2857 IOCB_t
*irsp
= NULL
;
2858 struct lpfc_iocbq
*rspiocbp
= NULL
;
2859 uint32_t portRspPut
, portRspMax
;
2860 unsigned long iflag
;
2863 pgp
= &phba
->port_gp
[pring
->ringno
];
2864 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2865 pring
->stats
.iocb_event
++;
2868 * The next available response entry should never exceed the maximum
2869 * entries. If it does, treat it as an adapter hardware error.
2871 portRspMax
= pring
->numRiocb
;
2872 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2873 if (portRspPut
>= portRspMax
) {
2875 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2876 * rsp ring <portRspMax>
2878 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2879 "0303 Ring %d handler: portRspPut %d "
2880 "is bigger than rsp ring %d\n",
2881 pring
->ringno
, portRspPut
, portRspMax
);
2883 phba
->link_state
= LPFC_HBA_ERROR
;
2884 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2886 phba
->work_hs
= HS_FFER3
;
2887 lpfc_handle_eratt(phba
);
2893 while (pring
->rspidx
!= portRspPut
) {
2895 * Build a completion list and call the appropriate handler.
2896 * The process is to get the next available response iocb, get
2897 * a free iocb from the list, copy the response data into the
2898 * free iocb, insert to the continuation list, and update the
2899 * next response index to slim. This process makes response
2900 * iocb's in the ring available to DMA as fast as possible but
2901 * pays a penalty for a copy operation. Since the iocb is
2902 * only 32 bytes, this penalty is considered small relative to
2903 * the PCI reads for register values and a slim write. When
2904 * the ulpLe field is set, the entire Command has been
2907 entry
= lpfc_resp_iocb(phba
, pring
);
2909 phba
->last_completion_time
= jiffies
;
2910 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
2911 if (rspiocbp
== NULL
) {
2912 printk(KERN_ERR
"%s: out of buffers! Failing "
2913 "completion.\n", __func__
);
2917 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
2918 phba
->iocb_rsp_size
);
2919 irsp
= &rspiocbp
->iocb
;
2921 if (++pring
->rspidx
>= portRspMax
)
2924 if (pring
->ringno
== LPFC_ELS_RING
) {
2925 lpfc_debugfs_slow_ring_trc(phba
,
2926 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2927 *(((uint32_t *) irsp
) + 4),
2928 *(((uint32_t *) irsp
) + 6),
2929 *(((uint32_t *) irsp
) + 7));
2932 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2934 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2935 /* Handle the response IOCB */
2936 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
2937 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2940 * If the port response put pointer has not been updated, sync
2941 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2942 * response put pointer.
2944 if (pring
->rspidx
== portRspPut
) {
2945 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2947 } /* while (pring->rspidx != portRspPut) */
2949 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
2950 /* At least one response entry has been freed */
2951 pring
->stats
.iocb_rsp_full
++;
2952 /* SET RxRE_RSP in Chip Att register */
2953 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2954 writel(status
, phba
->CAregaddr
);
2955 readl(phba
->CAregaddr
); /* flush */
2957 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2958 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2959 pring
->stats
.iocb_cmd_empty
++;
2961 /* Force update of the local copy of cmdGetInx */
2962 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2963 lpfc_sli_resume_iocb(phba
, pring
);
2965 if ((pring
->lpfc_sli_cmd_available
))
2966 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2970 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2975 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2976 * @phba: Pointer to HBA context object.
2977 * @pring: Pointer to driver SLI ring object.
2978 * @mask: Host attention register mask for this ring.
2980 * This function is called from the worker thread when there is a pending
2981 * ELS response iocb on the driver internal slow-path response iocb worker
2982 * queue. The caller does not hold any lock. The function will remove each
2983 * response iocb from the response worker queue and calls the handle
2984 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2987 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
2988 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2990 struct lpfc_iocbq
*irspiocbq
;
2991 struct hbq_dmabuf
*dmabuf
;
2992 struct lpfc_cq_event
*cq_event
;
2993 unsigned long iflag
;
2995 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2996 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
2997 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2998 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
2999 /* Get the response iocb from the head of work queue */
3000 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3001 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3002 cq_event
, struct lpfc_cq_event
, list
);
3003 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3005 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3006 case CQE_CODE_COMPL_WQE
:
3007 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3009 /* Translate ELS WCQE to response IOCBQ */
3010 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3013 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3016 case CQE_CODE_RECEIVE
:
3017 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3019 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3028 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3029 * @phba: Pointer to HBA context object.
3030 * @pring: Pointer to driver SLI ring object.
3032 * This function aborts all iocbs in the given ring and frees all the iocb
3033 * objects in txq. This function issues an abort iocb for all the iocb commands
3034 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3035 * the return of this function. The caller is not required to hold any locks.
3038 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3040 LIST_HEAD(completions
);
3041 struct lpfc_iocbq
*iocb
, *next_iocb
;
3043 if (pring
->ringno
== LPFC_ELS_RING
) {
3044 lpfc_fabric_abort_hba(phba
);
3047 /* Error everything on txq and txcmplq
3050 spin_lock_irq(&phba
->hbalock
);
3051 list_splice_init(&pring
->txq
, &completions
);
3054 /* Next issue ABTS for everything on the txcmplq */
3055 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3056 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3058 spin_unlock_irq(&phba
->hbalock
);
3060 /* Cancel all the IOCBs from the completions list */
3061 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3066 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3067 * @phba: Pointer to HBA context object.
3069 * This function flushes all iocbs in the fcp ring and frees all the iocb
3070 * objects in txq and txcmplq. This function will not issue abort iocbs
3071 * for all the iocb commands in txcmplq, they will just be returned with
3072 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3073 * slot has been permanently disabled.
3076 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3080 struct lpfc_sli
*psli
= &phba
->sli
;
3081 struct lpfc_sli_ring
*pring
;
3083 /* Currently, only one fcp ring */
3084 pring
= &psli
->ring
[psli
->fcp_ring
];
3086 spin_lock_irq(&phba
->hbalock
);
3087 /* Retrieve everything on txq */
3088 list_splice_init(&pring
->txq
, &txq
);
3091 /* Retrieve everything on the txcmplq */
3092 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3093 pring
->txcmplq_cnt
= 0;
3094 spin_unlock_irq(&phba
->hbalock
);
3097 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3100 /* Flush the txcmpq */
3101 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3106 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3107 * @phba: Pointer to HBA context object.
3108 * @mask: Bit mask to be checked.
3110 * This function reads the host status register and compares
3111 * with the provided bit mask to check if HBA completed
3112 * the restart. This function will wait in a loop for the
3113 * HBA to complete restart. If the HBA does not restart within
3114 * 15 iterations, the function will reset the HBA again. The
3115 * function returns 1 when HBA fail to restart otherwise returns
3119 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3125 /* Read the HBA Host Status Register */
3126 status
= readl(phba
->HSregaddr
);
3129 * Check status register every 100ms for 5 retries, then every
3130 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3131 * every 2.5 sec for 4.
3132 * Break our of the loop if errors occurred during init.
3134 while (((status
& mask
) != mask
) &&
3135 !(status
& HS_FFERM
) &&
3147 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3148 lpfc_sli_brdrestart(phba
);
3150 /* Read the HBA Host Status Register */
3151 status
= readl(phba
->HSregaddr
);
3154 /* Check to see if any errors occurred during init */
3155 if ((status
& HS_FFERM
) || (i
>= 20)) {
3156 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3157 "2751 Adapter failed to restart, "
3158 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3160 readl(phba
->MBslimaddr
+ 0xa8),
3161 readl(phba
->MBslimaddr
+ 0xac));
3162 phba
->link_state
= LPFC_HBA_ERROR
;
3170 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3171 * @phba: Pointer to HBA context object.
3172 * @mask: Bit mask to be checked.
3174 * This function checks the host status register to check if HBA is
3175 * ready. This function will wait in a loop for the HBA to be ready
3176 * If the HBA is not ready , the function will will reset the HBA PCI
3177 * function again. The function returns 1 when HBA fail to be ready
3178 * otherwise returns zero.
3181 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3186 /* Read the HBA Host Status Register */
3187 status
= lpfc_sli4_post_status_check(phba
);
3190 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3191 lpfc_sli_brdrestart(phba
);
3192 status
= lpfc_sli4_post_status_check(phba
);
3195 /* Check to see if any errors occurred during init */
3197 phba
->link_state
= LPFC_HBA_ERROR
;
3200 phba
->sli4_hba
.intr_enable
= 0;
3206 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3207 * @phba: Pointer to HBA context object.
3208 * @mask: Bit mask to be checked.
3210 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3211 * from the API jump table function pointer from the lpfc_hba struct.
3214 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3216 return phba
->lpfc_sli_brdready(phba
, mask
);
3219 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3222 * lpfc_reset_barrier - Make HBA ready for HBA reset
3223 * @phba: Pointer to HBA context object.
3225 * This function is called before resetting an HBA. This
3226 * function requests HBA to quiesce DMAs before a reset.
3228 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3230 uint32_t __iomem
*resp_buf
;
3231 uint32_t __iomem
*mbox_buf
;
3232 volatile uint32_t mbox
;
3237 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3238 if (hdrtype
!= 0x80 ||
3239 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3240 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3244 * Tell the other part of the chip to suspend temporarily all
3247 resp_buf
= phba
->MBslimaddr
;
3249 /* Disable the error attention */
3250 hc_copy
= readl(phba
->HCregaddr
);
3251 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3252 readl(phba
->HCregaddr
); /* flush */
3253 phba
->link_flag
|= LS_IGNORE_ERATT
;
3255 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3256 /* Clear Chip error bit */
3257 writel(HA_ERATT
, phba
->HAregaddr
);
3258 phba
->pport
->stopped
= 1;
3262 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3263 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3265 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3266 mbox_buf
= phba
->MBslimaddr
;
3267 writel(mbox
, mbox_buf
);
3270 readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
) && i
< 50; i
++)
3273 if (readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
)) {
3274 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3275 phba
->pport
->stopped
)
3281 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3282 for (i
= 0; readl(resp_buf
) != mbox
&& i
< 500; i
++)
3287 while (!(readl(phba
->HAregaddr
) & HA_ERATT
) && ++i
< 500)
3290 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3291 writel(HA_ERATT
, phba
->HAregaddr
);
3292 phba
->pport
->stopped
= 1;
3296 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3297 writel(hc_copy
, phba
->HCregaddr
);
3298 readl(phba
->HCregaddr
); /* flush */
3302 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3303 * @phba: Pointer to HBA context object.
3305 * This function issues a kill_board mailbox command and waits for
3306 * the error attention interrupt. This function is called for stopping
3307 * the firmware processing. The caller is not required to hold any
3308 * locks. This function calls lpfc_hba_down_post function to free
3309 * any pending commands after the kill. The function will return 1 when it
3310 * fails to kill the board else will return 0.
3313 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3315 struct lpfc_sli
*psli
;
3325 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3326 "0329 Kill HBA Data: x%x x%x\n",
3327 phba
->pport
->port_state
, psli
->sli_flag
);
3329 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3333 /* Disable the error attention */
3334 spin_lock_irq(&phba
->hbalock
);
3335 status
= readl(phba
->HCregaddr
);
3336 status
&= ~HC_ERINT_ENA
;
3337 writel(status
, phba
->HCregaddr
);
3338 readl(phba
->HCregaddr
); /* flush */
3339 phba
->link_flag
|= LS_IGNORE_ERATT
;
3340 spin_unlock_irq(&phba
->hbalock
);
3342 lpfc_kill_board(phba
, pmb
);
3343 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3344 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3346 if (retval
!= MBX_SUCCESS
) {
3347 if (retval
!= MBX_BUSY
)
3348 mempool_free(pmb
, phba
->mbox_mem_pool
);
3349 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3350 "2752 KILL_BOARD command failed retval %d\n",
3352 spin_lock_irq(&phba
->hbalock
);
3353 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3354 spin_unlock_irq(&phba
->hbalock
);
3358 spin_lock_irq(&phba
->hbalock
);
3359 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3360 spin_unlock_irq(&phba
->hbalock
);
3362 mempool_free(pmb
, phba
->mbox_mem_pool
);
3364 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3365 * attention every 100ms for 3 seconds. If we don't get ERATT after
3366 * 3 seconds we still set HBA_ERROR state because the status of the
3367 * board is now undefined.
3369 ha_copy
= readl(phba
->HAregaddr
);
3371 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3373 ha_copy
= readl(phba
->HAregaddr
);
3376 del_timer_sync(&psli
->mbox_tmo
);
3377 if (ha_copy
& HA_ERATT
) {
3378 writel(HA_ERATT
, phba
->HAregaddr
);
3379 phba
->pport
->stopped
= 1;
3381 spin_lock_irq(&phba
->hbalock
);
3382 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3383 psli
->mbox_active
= NULL
;
3384 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3385 spin_unlock_irq(&phba
->hbalock
);
3387 lpfc_hba_down_post(phba
);
3388 phba
->link_state
= LPFC_HBA_ERROR
;
3390 return ha_copy
& HA_ERATT
? 0 : 1;
3394 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3395 * @phba: Pointer to HBA context object.
3397 * This function resets the HBA by writing HC_INITFF to the control
3398 * register. After the HBA resets, this function resets all the iocb ring
3399 * indices. This function disables PCI layer parity checking during
3401 * This function returns 0 always.
3402 * The caller is not required to hold any locks.
3405 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3407 struct lpfc_sli
*psli
;
3408 struct lpfc_sli_ring
*pring
;
3415 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3416 "0325 Reset HBA Data: x%x x%x\n",
3417 phba
->pport
->port_state
, psli
->sli_flag
);
3419 /* perform board reset */
3420 phba
->fc_eventTag
= 0;
3421 phba
->link_events
= 0;
3422 phba
->pport
->fc_myDID
= 0;
3423 phba
->pport
->fc_prevDID
= 0;
3425 /* Turn off parity checking and serr during the physical reset */
3426 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3427 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3429 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3431 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3433 /* Now toggle INITFF bit in the Host Control Register */
3434 writel(HC_INITFF
, phba
->HCregaddr
);
3436 readl(phba
->HCregaddr
); /* flush */
3437 writel(0, phba
->HCregaddr
);
3438 readl(phba
->HCregaddr
); /* flush */
3440 /* Restore PCI cmd register */
3441 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3443 /* Initialize relevant SLI info */
3444 for (i
= 0; i
< psli
->num_rings
; i
++) {
3445 pring
= &psli
->ring
[i
];
3448 pring
->next_cmdidx
= 0;
3449 pring
->local_getidx
= 0;
3451 pring
->missbufcnt
= 0;
3454 phba
->link_state
= LPFC_WARM_START
;
3459 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3460 * @phba: Pointer to HBA context object.
3462 * This function resets a SLI4 HBA. This function disables PCI layer parity
3463 * checking during resets the device. The caller is not required to hold
3466 * This function returns 0 always.
3469 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3471 struct lpfc_sli
*psli
= &phba
->sli
;
3476 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3477 "0295 Reset HBA Data: x%x x%x\n",
3478 phba
->pport
->port_state
, psli
->sli_flag
);
3480 /* perform board reset */
3481 phba
->fc_eventTag
= 0;
3482 phba
->link_events
= 0;
3483 phba
->pport
->fc_myDID
= 0;
3484 phba
->pport
->fc_prevDID
= 0;
3486 /* Turn off parity checking and serr during the physical reset */
3487 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3488 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3490 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3492 spin_lock_irq(&phba
->hbalock
);
3493 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3494 phba
->fcf
.fcf_flag
= 0;
3495 /* Clean up the child queue list for the CQs */
3496 list_del_init(&phba
->sli4_hba
.mbx_wq
->list
);
3497 list_del_init(&phba
->sli4_hba
.els_wq
->list
);
3498 list_del_init(&phba
->sli4_hba
.hdr_rq
->list
);
3499 list_del_init(&phba
->sli4_hba
.dat_rq
->list
);
3500 list_del_init(&phba
->sli4_hba
.mbx_cq
->list
);
3501 list_del_init(&phba
->sli4_hba
.els_cq
->list
);
3502 for (qindx
= 0; qindx
< phba
->cfg_fcp_wq_count
; qindx
++)
3503 list_del_init(&phba
->sli4_hba
.fcp_wq
[qindx
]->list
);
3504 for (qindx
= 0; qindx
< phba
->cfg_fcp_eq_count
; qindx
++)
3505 list_del_init(&phba
->sli4_hba
.fcp_cq
[qindx
]->list
);
3506 spin_unlock_irq(&phba
->hbalock
);
3508 /* Now physically reset the device */
3509 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3510 "0389 Performing PCI function reset!\n");
3511 /* Perform FCoE PCI function reset */
3512 lpfc_pci_function_reset(phba
);
3518 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3519 * @phba: Pointer to HBA context object.
3521 * This function is called in the SLI initialization code path to
3522 * restart the HBA. The caller is not required to hold any lock.
3523 * This function writes MBX_RESTART mailbox command to the SLIM and
3524 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3525 * function to free any pending commands. The function enables
3526 * POST only during the first initialization. The function returns zero.
3527 * The function does not guarantee completion of MBX_RESTART mailbox
3528 * command before the return of this function.
3531 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
3534 struct lpfc_sli
*psli
;
3535 volatile uint32_t word0
;
3536 void __iomem
*to_slim
;
3537 uint32_t hba_aer_enabled
;
3539 spin_lock_irq(&phba
->hbalock
);
3541 /* Take PCIe device Advanced Error Reporting (AER) state */
3542 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3547 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3548 "0337 Restart HBA Data: x%x x%x\n",
3549 phba
->pport
->port_state
, psli
->sli_flag
);
3552 mb
= (MAILBOX_t
*) &word0
;
3553 mb
->mbxCommand
= MBX_RESTART
;
3556 lpfc_reset_barrier(phba
);
3558 to_slim
= phba
->MBslimaddr
;
3559 writel(*(uint32_t *) mb
, to_slim
);
3560 readl(to_slim
); /* flush */
3562 /* Only skip post after fc_ffinit is completed */
3563 if (phba
->pport
->port_state
)
3564 word0
= 1; /* This is really setting up word1 */
3566 word0
= 0; /* This is really setting up word1 */
3567 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
3568 writel(*(uint32_t *) mb
, to_slim
);
3569 readl(to_slim
); /* flush */
3571 lpfc_sli_brdreset(phba
);
3572 phba
->pport
->stopped
= 0;
3573 phba
->link_state
= LPFC_INIT_START
;
3575 spin_unlock_irq(&phba
->hbalock
);
3577 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3578 psli
->stats_start
= get_seconds();
3580 /* Give the INITFF and Post time to settle. */
3583 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3584 if (hba_aer_enabled
)
3585 pci_disable_pcie_error_reporting(phba
->pcidev
);
3587 lpfc_hba_down_post(phba
);
3593 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3594 * @phba: Pointer to HBA context object.
3596 * This function is called in the SLI initialization code path to restart
3597 * a SLI4 HBA. The caller is not required to hold any lock.
3598 * At the end of the function, it calls lpfc_hba_down_post function to
3599 * free any pending commands.
3602 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
3604 struct lpfc_sli
*psli
= &phba
->sli
;
3605 uint32_t hba_aer_enabled
;
3608 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3609 "0296 Restart HBA Data: x%x x%x\n",
3610 phba
->pport
->port_state
, psli
->sli_flag
);
3612 /* Take PCIe device Advanced Error Reporting (AER) state */
3613 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3615 lpfc_sli4_brdreset(phba
);
3617 spin_lock_irq(&phba
->hbalock
);
3618 phba
->pport
->stopped
= 0;
3619 phba
->link_state
= LPFC_INIT_START
;
3621 spin_unlock_irq(&phba
->hbalock
);
3623 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3624 psli
->stats_start
= get_seconds();
3626 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3627 if (hba_aer_enabled
)
3628 pci_disable_pcie_error_reporting(phba
->pcidev
);
3630 lpfc_hba_down_post(phba
);
3636 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3637 * @phba: Pointer to HBA context object.
3639 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3640 * API jump table function pointer from the lpfc_hba struct.
3643 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
3645 return phba
->lpfc_sli_brdrestart(phba
);
3649 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3650 * @phba: Pointer to HBA context object.
3652 * This function is called after a HBA restart to wait for successful
3653 * restart of the HBA. Successful restart of the HBA is indicated by
3654 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3655 * iteration, the function will restart the HBA again. The function returns
3656 * zero if HBA successfully restarted else returns negative error code.
3659 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
3661 uint32_t status
, i
= 0;
3663 /* Read the HBA Host Status Register */
3664 status
= readl(phba
->HSregaddr
);
3666 /* Check status register to see what current state is */
3668 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
3670 /* Check every 10ms for 10 retries, then every 100ms for 90
3671 * retries, then every 1 sec for 50 retires for a total of
3672 * ~60 seconds before reset the board again and check every
3673 * 1 sec for 50 retries. The up to 60 seconds before the
3674 * board ready is required by the Falcon FIPS zeroization
3675 * complete, and any reset the board in between shall cause
3676 * restart of zeroization, further delay the board ready.
3679 /* Adapter failed to init, timeout, status reg
3681 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3682 "0436 Adapter failed to init, "
3683 "timeout, status reg x%x, "
3684 "FW Data: A8 x%x AC x%x\n", status
,
3685 readl(phba
->MBslimaddr
+ 0xa8),
3686 readl(phba
->MBslimaddr
+ 0xac));
3687 phba
->link_state
= LPFC_HBA_ERROR
;
3691 /* Check to see if any errors occurred during init */
3692 if (status
& HS_FFERM
) {
3693 /* ERROR: During chipset initialization */
3694 /* Adapter failed to init, chipset, status reg
3696 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3697 "0437 Adapter failed to init, "
3698 "chipset, status reg x%x, "
3699 "FW Data: A8 x%x AC x%x\n", status
,
3700 readl(phba
->MBslimaddr
+ 0xa8),
3701 readl(phba
->MBslimaddr
+ 0xac));
3702 phba
->link_state
= LPFC_HBA_ERROR
;
3715 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3716 lpfc_sli_brdrestart(phba
);
3718 /* Read the HBA Host Status Register */
3719 status
= readl(phba
->HSregaddr
);
3722 /* Check to see if any errors occurred during init */
3723 if (status
& HS_FFERM
) {
3724 /* ERROR: During chipset initialization */
3725 /* Adapter failed to init, chipset, status reg <status> */
3726 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3727 "0438 Adapter failed to init, chipset, "
3729 "FW Data: A8 x%x AC x%x\n", status
,
3730 readl(phba
->MBslimaddr
+ 0xa8),
3731 readl(phba
->MBslimaddr
+ 0xac));
3732 phba
->link_state
= LPFC_HBA_ERROR
;
3736 /* Clear all interrupt enable conditions */
3737 writel(0, phba
->HCregaddr
);
3738 readl(phba
->HCregaddr
); /* flush */
3740 /* setup host attn register */
3741 writel(0xffffffff, phba
->HAregaddr
);
3742 readl(phba
->HAregaddr
); /* flush */
3747 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3749 * This function calculates and returns the number of HBQs required to be
3753 lpfc_sli_hbq_count(void)
3755 return ARRAY_SIZE(lpfc_hbq_defs
);
3759 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3761 * This function adds the number of hbq entries in every HBQ to get
3762 * the total number of hbq entries required for the HBA and returns
3766 lpfc_sli_hbq_entry_count(void)
3768 int hbq_count
= lpfc_sli_hbq_count();
3772 for (i
= 0; i
< hbq_count
; ++i
)
3773 count
+= lpfc_hbq_defs
[i
]->entry_count
;
3778 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3780 * This function calculates amount of memory required for all hbq entries
3781 * to be configured and returns the total memory required.
3784 lpfc_sli_hbq_size(void)
3786 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
3790 * lpfc_sli_hbq_setup - configure and initialize HBQs
3791 * @phba: Pointer to HBA context object.
3793 * This function is called during the SLI initialization to configure
3794 * all the HBQs and post buffers to the HBQ. The caller is not
3795 * required to hold any locks. This function will return zero if successful
3796 * else it will return negative error code.
3799 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
3801 int hbq_count
= lpfc_sli_hbq_count();
3805 uint32_t hbq_entry_index
;
3807 /* Get a Mailbox buffer to setup mailbox
3808 * commands for HBA initialization
3810 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3817 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3818 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3819 phba
->hbq_in_use
= 1;
3821 hbq_entry_index
= 0;
3822 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
3823 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
3824 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
3825 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
3826 phba
->hbqs
[hbqno
].entry_count
=
3827 lpfc_hbq_defs
[hbqno
]->entry_count
;
3828 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
3829 hbq_entry_index
, pmb
);
3830 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
3832 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
3833 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3834 mbxStatus <status>, ring <num> */
3836 lpfc_printf_log(phba
, KERN_ERR
,
3837 LOG_SLI
| LOG_VPORT
,
3838 "1805 Adapter failed to init. "
3839 "Data: x%x x%x x%x\n",
3841 pmbox
->mbxStatus
, hbqno
);
3843 phba
->link_state
= LPFC_HBA_ERROR
;
3844 mempool_free(pmb
, phba
->mbox_mem_pool
);
3848 phba
->hbq_count
= hbq_count
;
3850 mempool_free(pmb
, phba
->mbox_mem_pool
);
3852 /* Initially populate or replenish the HBQs */
3853 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
3854 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
3859 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3860 * @phba: Pointer to HBA context object.
3862 * This function is called during the SLI initialization to configure
3863 * all the HBQs and post buffers to the HBQ. The caller is not
3864 * required to hold any locks. This function will return zero if successful
3865 * else it will return negative error code.
3868 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
3870 phba
->hbq_in_use
= 1;
3871 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
3872 phba
->hbq_count
= 1;
3873 /* Initially populate or replenish the HBQs */
3874 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
3879 * lpfc_sli_config_port - Issue config port mailbox command
3880 * @phba: Pointer to HBA context object.
3881 * @sli_mode: sli mode - 2/3
3883 * This function is called by the sli intialization code path
3884 * to issue config_port mailbox command. This function restarts the
3885 * HBA firmware and issues a config_port mailbox command to configure
3886 * the SLI interface in the sli mode specified by sli_mode
3887 * variable. The caller is not required to hold any locks.
3888 * The function returns 0 if successful, else returns negative error
3892 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
3895 uint32_t resetcount
= 0, rc
= 0, done
= 0;
3897 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3899 phba
->link_state
= LPFC_HBA_ERROR
;
3903 phba
->sli_rev
= sli_mode
;
3904 while (resetcount
< 2 && !done
) {
3905 spin_lock_irq(&phba
->hbalock
);
3906 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
3907 spin_unlock_irq(&phba
->hbalock
);
3908 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3909 lpfc_sli_brdrestart(phba
);
3910 rc
= lpfc_sli_chipset_init(phba
);
3914 spin_lock_irq(&phba
->hbalock
);
3915 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3916 spin_unlock_irq(&phba
->hbalock
);
3919 /* Call pre CONFIG_PORT mailbox command initialization. A
3920 * value of 0 means the call was successful. Any other
3921 * nonzero value is a failure, but if ERESTART is returned,
3922 * the driver may reset the HBA and try again.
3924 rc
= lpfc_config_port_prep(phba
);
3925 if (rc
== -ERESTART
) {
3926 phba
->link_state
= LPFC_LINK_UNKNOWN
;
3930 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3931 lpfc_config_port(phba
, pmb
);
3932 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
3933 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
3934 LPFC_SLI3_HBQ_ENABLED
|
3935 LPFC_SLI3_CRP_ENABLED
|
3936 LPFC_SLI3_BG_ENABLED
|
3937 LPFC_SLI3_DSS_ENABLED
);
3938 if (rc
!= MBX_SUCCESS
) {
3939 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3940 "0442 Adapter failed to init, mbxCmd x%x "
3941 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3942 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
3943 spin_lock_irq(&phba
->hbalock
);
3944 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
3945 spin_unlock_irq(&phba
->hbalock
);
3948 /* Allow asynchronous mailbox command to go through */
3949 spin_lock_irq(&phba
->hbalock
);
3950 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
3951 spin_unlock_irq(&phba
->hbalock
);
3957 goto do_prep_failed
;
3959 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
3960 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
3962 goto do_prep_failed
;
3964 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
3965 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3966 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
3967 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
3968 phba
->max_vpi
: phba
->max_vports
;
3972 phba
->fips_level
= 0;
3973 phba
->fips_spec_rev
= 0;
3974 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
3975 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
3976 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
3977 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
3978 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3979 "2850 Security Crypto Active. FIPS x%d "
3981 phba
->fips_level
, phba
->fips_spec_rev
);
3983 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
3984 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3985 "2856 Config Port Security Crypto "
3987 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
3989 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
3990 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
3991 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
3992 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
3994 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
3995 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
3997 if (phba
->cfg_enable_bg
) {
3998 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
3999 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4001 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4002 "0443 Adapter did not grant "
4006 phba
->hbq_get
= NULL
;
4007 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4011 mempool_free(pmb
, phba
->mbox_mem_pool
);
4017 * lpfc_sli_hba_setup - SLI intialization function
4018 * @phba: Pointer to HBA context object.
4020 * This function is the main SLI intialization function. This function
4021 * is called by the HBA intialization code, HBA reset code and HBA
4022 * error attention handler code. Caller is not required to hold any
4023 * locks. This function issues config_port mailbox command to configure
4024 * the SLI, setup iocb rings and HBQ rings. In the end the function
4025 * calls the config_port_post function to issue init_link mailbox
4026 * command and to start the discovery. The function will return zero
4027 * if successful, else it will return negative error code.
4030 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4035 switch (lpfc_sli_mode
) {
4037 if (phba
->cfg_enable_npiv
) {
4038 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4039 "1824 NPIV enabled: Override lpfc_sli_mode "
4040 "parameter (%d) to auto (0).\n",
4050 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4051 "1819 Unrecognized lpfc_sli_mode "
4052 "parameter: %d.\n", lpfc_sli_mode
);
4057 rc
= lpfc_sli_config_port(phba
, mode
);
4059 if (rc
&& lpfc_sli_mode
== 3)
4060 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4061 "1820 Unable to select SLI-3. "
4062 "Not supported by adapter.\n");
4063 if (rc
&& mode
!= 2)
4064 rc
= lpfc_sli_config_port(phba
, 2);
4066 goto lpfc_sli_hba_setup_error
;
4068 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4069 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4070 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4072 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4073 "2709 This device supports "
4074 "Advanced Error Reporting (AER)\n");
4075 spin_lock_irq(&phba
->hbalock
);
4076 phba
->hba_flag
|= HBA_AER_ENABLED
;
4077 spin_unlock_irq(&phba
->hbalock
);
4079 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4080 "2708 This device does not support "
4081 "Advanced Error Reporting (AER)\n");
4082 phba
->cfg_aer_support
= 0;
4086 if (phba
->sli_rev
== 3) {
4087 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4088 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4090 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4091 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4092 phba
->sli3_options
= 0;
4095 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4096 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4097 phba
->sli_rev
, phba
->max_vpi
);
4098 rc
= lpfc_sli_ring_map(phba
);
4101 goto lpfc_sli_hba_setup_error
;
4104 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4105 rc
= lpfc_sli_hbq_setup(phba
);
4107 goto lpfc_sli_hba_setup_error
;
4109 spin_lock_irq(&phba
->hbalock
);
4110 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4111 spin_unlock_irq(&phba
->hbalock
);
4113 rc
= lpfc_config_port_post(phba
);
4115 goto lpfc_sli_hba_setup_error
;
4119 lpfc_sli_hba_setup_error
:
4120 phba
->link_state
= LPFC_HBA_ERROR
;
4121 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4122 "0445 Firmware initialization failed\n");
4127 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4128 * @phba: Pointer to HBA context object.
4129 * @mboxq: mailbox pointer.
4130 * This function issue a dump mailbox command to read config region
4131 * 23 and parse the records in the region and populate driver
4135 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
,
4136 LPFC_MBOXQ_t
*mboxq
)
4138 struct lpfc_dmabuf
*mp
;
4139 struct lpfc_mqe
*mqe
;
4140 uint32_t data_length
;
4143 /* Program the default value of vlan_id and fc_map */
4144 phba
->valid_vlan
= 0;
4145 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4146 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4147 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4149 mqe
= &mboxq
->u
.mqe
;
4150 if (lpfc_dump_fcoe_param(phba
, mboxq
))
4153 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4154 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4156 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4157 "(%d):2571 Mailbox cmd x%x Status x%x "
4158 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4159 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4160 "CQ: x%x x%x x%x x%x\n",
4161 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4162 bf_get(lpfc_mqe_command
, mqe
),
4163 bf_get(lpfc_mqe_status
, mqe
),
4164 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4165 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4166 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4167 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4168 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4169 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4170 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4171 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4172 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4174 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4175 mboxq
->mcqe
.trailer
);
4178 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4182 data_length
= mqe
->un
.mb_words
[5];
4183 if (data_length
> DMP_RGN23_SIZE
) {
4184 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4189 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4190 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4196 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4197 * @phba: pointer to lpfc hba data structure.
4198 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4199 * @vpd: pointer to the memory to hold resulting port vpd data.
4200 * @vpd_size: On input, the number of bytes allocated to @vpd.
4201 * On output, the number of data bytes in @vpd.
4203 * This routine executes a READ_REV SLI4 mailbox command. In
4204 * addition, this routine gets the port vpd data.
4208 * -ENOMEM - could not allocated memory.
4211 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4212 uint8_t *vpd
, uint32_t *vpd_size
)
4216 struct lpfc_dmabuf
*dmabuf
;
4217 struct lpfc_mqe
*mqe
;
4219 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4224 * Get a DMA buffer for the vpd data resulting from the READ_REV
4227 dma_size
= *vpd_size
;
4228 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4232 if (!dmabuf
->virt
) {
4236 memset(dmabuf
->virt
, 0, dma_size
);
4239 * The SLI4 implementation of READ_REV conflicts at word1,
4240 * bits 31:16 and SLI4 adds vpd functionality not present
4241 * in SLI3. This code corrects the conflicts.
4243 lpfc_read_rev(phba
, mboxq
);
4244 mqe
= &mboxq
->u
.mqe
;
4245 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4246 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4247 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4248 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4249 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4251 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4253 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4254 dmabuf
->virt
, dmabuf
->phys
);
4260 * The available vpd length cannot be bigger than the
4261 * DMA buffer passed to the port. Catch the less than
4262 * case and update the caller's size.
4264 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4265 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4267 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4269 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4270 dmabuf
->virt
, dmabuf
->phys
);
4276 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4277 * @phba: pointer to lpfc hba data structure.
4279 * This routine is called to explicitly arm the SLI4 device's completion and
4283 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4287 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4288 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4289 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4290 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4292 lpfc_sli4_eq_release(phba
->sli4_hba
.sp_eq
, LPFC_QUEUE_REARM
);
4293 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4294 lpfc_sli4_eq_release(phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
4299 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4300 * @phba: Pointer to HBA context object.
4302 * This function is the main SLI4 device intialization PCI function. This
4303 * function is called by the HBA intialization code, HBA reset code and
4304 * HBA error attention handler code. Caller is not required to hold any
4308 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
4311 LPFC_MBOXQ_t
*mboxq
;
4312 struct lpfc_mqe
*mqe
;
4315 uint32_t ftr_rsp
= 0;
4316 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
4317 struct lpfc_vport
*vport
= phba
->pport
;
4318 struct lpfc_dmabuf
*mp
;
4320 /* Perform a PCI function reset to start from clean */
4321 rc
= lpfc_pci_function_reset(phba
);
4325 /* Check the HBA Host Status Register for readyness */
4326 rc
= lpfc_sli4_post_status_check(phba
);
4330 spin_lock_irq(&phba
->hbalock
);
4331 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
4332 spin_unlock_irq(&phba
->hbalock
);
4336 * Allocate a single mailbox container for initializing the
4339 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4344 * Continue initialization with default values even if driver failed
4345 * to read FCoE param config regions
4347 if (lpfc_sli4_read_fcoe_params(phba
, mboxq
))
4348 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
4349 "2570 Failed to read FCoE parameters\n");
4351 /* Issue READ_REV to collect vpd and FW information. */
4352 vpd_size
= SLI4_PAGE_SIZE
;
4353 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
4359 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
4363 mqe
= &mboxq
->u
.mqe
;
4364 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
4365 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
4366 phba
->hba_flag
|= HBA_FCOE_SUPPORT
;
4368 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
4370 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
4372 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
4374 if (phba
->sli_rev
!= LPFC_SLI_REV4
||
4375 !(phba
->hba_flag
& HBA_FCOE_SUPPORT
)) {
4376 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4377 "0376 READ_REV Error. SLI Level %d "
4378 "FCoE enabled %d\n",
4379 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_SUPPORT
);
4384 * Evaluate the read rev and vpd data. Populate the driver
4385 * state with the results. If this routine fails, the failure
4386 * is not fatal as the driver will use generic values.
4388 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
4389 if (unlikely(!rc
)) {
4390 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4391 "0377 Error %d parsing vpd. "
4392 "Using defaults.\n", rc
);
4396 /* Save information as VPD data */
4397 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
4398 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
4399 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
4400 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
4402 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
4404 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
4406 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
4408 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4409 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
4410 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
4411 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
4412 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4413 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
4414 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4415 "(%d):0380 READ_REV Status x%x "
4416 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4417 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4418 bf_get(lpfc_mqe_status
, mqe
),
4419 phba
->vpd
.rev
.opFwName
,
4420 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
4421 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
4424 * Discover the port's supported feature set and match it against the
4427 lpfc_request_features(phba
, mboxq
);
4428 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4435 * The port must support FCP initiator mode as this is the
4436 * only mode running in the host.
4438 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
4439 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4440 "0378 No support for fcpi mode.\n");
4445 * If the port cannot support the host's requested features
4446 * then turn off the global config parameters to disable the
4447 * feature in the driver. This is not a fatal error.
4449 if ((phba
->cfg_enable_bg
) &&
4450 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4453 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
4454 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4458 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4459 "0379 Feature Mismatch Data: x%08x %08x "
4460 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
4461 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
4462 phba
->cfg_enable_npiv
, phba
->max_vpi
);
4463 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4464 phba
->cfg_enable_bg
= 0;
4465 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4466 phba
->cfg_enable_npiv
= 0;
4469 /* These SLI3 features are assumed in SLI4 */
4470 spin_lock_irq(&phba
->hbalock
);
4471 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
4472 spin_unlock_irq(&phba
->hbalock
);
4474 /* Read the port's service parameters. */
4475 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
4477 phba
->link_state
= LPFC_HBA_ERROR
;
4482 mboxq
->vport
= vport
;
4483 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4484 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4485 if (rc
== MBX_SUCCESS
) {
4486 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
4491 * This memory was allocated by the lpfc_read_sparam routine. Release
4492 * it to the mbuf pool.
4494 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4496 mboxq
->context1
= NULL
;
4498 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4499 "0382 READ_SPARAM command failed "
4500 "status %d, mbxStatus x%x\n",
4501 rc
, bf_get(lpfc_mqe_status
, mqe
));
4502 phba
->link_state
= LPFC_HBA_ERROR
;
4507 if (phba
->cfg_soft_wwnn
)
4508 u64_to_wwn(phba
->cfg_soft_wwnn
,
4509 vport
->fc_sparam
.nodeName
.u
.wwn
);
4510 if (phba
->cfg_soft_wwpn
)
4511 u64_to_wwn(phba
->cfg_soft_wwpn
,
4512 vport
->fc_sparam
.portName
.u
.wwn
);
4513 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
4514 sizeof(struct lpfc_name
));
4515 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
4516 sizeof(struct lpfc_name
));
4518 /* Update the fc_host data structures with new wwn. */
4519 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
4520 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
4522 /* Register SGL pool to the device using non-embedded mailbox command */
4523 rc
= lpfc_sli4_post_sgl_list(phba
);
4525 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4526 "0582 Error %d during sgl post operation\n",
4532 /* Register SCSI SGL pool to the device */
4533 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
4535 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4536 "0383 Error %d during scsi sgl post "
4538 /* Some Scsi buffers were moved to the abort scsi list */
4539 /* A pci function reset will repost them */
4544 /* Post the rpi header region to the device. */
4545 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
4547 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4548 "0393 Error %d during rpi post operation\n",
4554 /* Set up all the queues to the device */
4555 rc
= lpfc_sli4_queue_setup(phba
);
4557 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4558 "0381 Error %d during queue setup.\n ", rc
);
4559 goto out_stop_timers
;
4562 /* Arm the CQs and then EQs on device */
4563 lpfc_sli4_arm_cqeq_intr(phba
);
4565 /* Indicate device interrupt mode */
4566 phba
->sli4_hba
.intr_enable
= 1;
4568 /* Allow asynchronous mailbox command to go through */
4569 spin_lock_irq(&phba
->hbalock
);
4570 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4571 spin_unlock_irq(&phba
->hbalock
);
4573 /* Post receive buffers to the device */
4574 lpfc_sli4_rb_setup(phba
);
4576 /* Reset HBA FCF states after HBA reset */
4577 phba
->fcf
.fcf_flag
= 0;
4578 phba
->fcf
.current_rec
.flag
= 0;
4580 /* Start the ELS watchdog timer */
4581 mod_timer(&vport
->els_tmofunc
,
4582 jiffies
+ HZ
* (phba
->fc_ratov
* 2));
4584 /* Start heart beat timer */
4585 mod_timer(&phba
->hb_tmofunc
,
4586 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
4587 phba
->hb_outstanding
= 0;
4588 phba
->last_completion_time
= jiffies
;
4590 /* Start error attention (ERATT) polling timer */
4591 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
4593 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4594 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4595 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4597 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4598 "2829 This device supports "
4599 "Advanced Error Reporting (AER)\n");
4600 spin_lock_irq(&phba
->hbalock
);
4601 phba
->hba_flag
|= HBA_AER_ENABLED
;
4602 spin_unlock_irq(&phba
->hbalock
);
4604 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4605 "2830 This device does not support "
4606 "Advanced Error Reporting (AER)\n");
4607 phba
->cfg_aer_support
= 0;
4612 * The port is ready, set the host's link state to LINK_DOWN
4613 * in preparation for link interrupts.
4615 lpfc_init_link(phba
, mboxq
, phba
->cfg_topology
, phba
->cfg_link_speed
);
4616 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4617 lpfc_set_loopback_flag(phba
);
4618 /* Change driver state to LPFC_LINK_DOWN right before init link */
4619 spin_lock_irq(&phba
->hbalock
);
4620 phba
->link_state
= LPFC_LINK_DOWN
;
4621 spin_unlock_irq(&phba
->hbalock
);
4622 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
4623 if (unlikely(rc
!= MBX_NOT_FINISHED
)) {
4629 /* Unset all the queues set up in this routine when error out */
4631 lpfc_sli4_queue_unset(phba
);
4635 lpfc_stop_hba_timers(phba
);
4639 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4644 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4645 * @ptr: context object - pointer to hba structure.
4647 * This is the callback function for mailbox timer. The mailbox
4648 * timer is armed when a new mailbox command is issued and the timer
4649 * is deleted when the mailbox complete. The function is called by
4650 * the kernel timer code when a mailbox does not complete within
4651 * expected time. This function wakes up the worker thread to
4652 * process the mailbox timeout and returns. All the processing is
4653 * done by the worker thread function lpfc_mbox_timeout_handler.
4656 lpfc_mbox_timeout(unsigned long ptr
)
4658 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
4659 unsigned long iflag
;
4660 uint32_t tmo_posted
;
4662 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
4663 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
4665 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
4666 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
4669 lpfc_worker_wake_up(phba
);
4675 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4676 * @phba: Pointer to HBA context object.
4678 * This function is called from worker thread when a mailbox command times out.
4679 * The caller is not required to hold any locks. This function will reset the
4680 * HBA and recover all the pending commands.
4683 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
4685 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
4686 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
4687 struct lpfc_sli
*psli
= &phba
->sli
;
4688 struct lpfc_sli_ring
*pring
;
4690 /* Check the pmbox pointer first. There is a race condition
4691 * between the mbox timeout handler getting executed in the
4692 * worklist and the mailbox actually completing. When this
4693 * race condition occurs, the mbox_active will be NULL.
4695 spin_lock_irq(&phba
->hbalock
);
4696 if (pmbox
== NULL
) {
4697 lpfc_printf_log(phba
, KERN_WARNING
,
4699 "0353 Active Mailbox cleared - mailbox timeout "
4701 spin_unlock_irq(&phba
->hbalock
);
4705 /* Mbox cmd <mbxCommand> timeout */
4706 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4707 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4709 phba
->pport
->port_state
,
4711 phba
->sli
.mbox_active
);
4712 spin_unlock_irq(&phba
->hbalock
);
4714 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4715 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4716 * it to fail all oustanding SCSI IO.
4718 spin_lock_irq(&phba
->pport
->work_port_lock
);
4719 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
4720 spin_unlock_irq(&phba
->pport
->work_port_lock
);
4721 spin_lock_irq(&phba
->hbalock
);
4722 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4723 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
4724 spin_unlock_irq(&phba
->hbalock
);
4726 pring
= &psli
->ring
[psli
->fcp_ring
];
4727 lpfc_sli_abort_iocb_ring(phba
, pring
);
4729 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4730 "0345 Resetting board due to mailbox timeout\n");
4732 /* Reset the HBA device */
4733 lpfc_reset_hba(phba
);
4737 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4738 * @phba: Pointer to HBA context object.
4739 * @pmbox: Pointer to mailbox object.
4740 * @flag: Flag indicating how the mailbox need to be processed.
4742 * This function is called by discovery code and HBA management code
4743 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4744 * function gets the hbalock to protect the data structures.
4745 * The mailbox command can be submitted in polling mode, in which case
4746 * this function will wait in a polling loop for the completion of the
4748 * If the mailbox is submitted in no_wait mode (not polling) the
4749 * function will submit the command and returns immediately without waiting
4750 * for the mailbox completion. The no_wait is supported only when HBA
4751 * is in SLI2/SLI3 mode - interrupts are enabled.
4752 * The SLI interface allows only one mailbox pending at a time. If the
4753 * mailbox is issued in polling mode and there is already a mailbox
4754 * pending, then the function will return an error. If the mailbox is issued
4755 * in NO_WAIT mode and there is a mailbox pending already, the function
4756 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4757 * The sli layer owns the mailbox object until the completion of mailbox
4758 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4759 * return codes the caller owns the mailbox command after the return of
4763 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
4767 struct lpfc_sli
*psli
= &phba
->sli
;
4768 uint32_t status
, evtctr
;
4771 unsigned long timeout
;
4772 unsigned long drvr_flag
= 0;
4773 uint32_t word0
, ldata
;
4774 void __iomem
*to_slim
;
4775 int processing_queue
= 0;
4777 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
4779 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4780 /* processing mbox queue from intr_handler */
4781 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
4782 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4785 processing_queue
= 1;
4786 pmbox
= lpfc_mbox_get(phba
);
4788 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4793 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
4794 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
4796 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4797 lpfc_printf_log(phba
, KERN_ERR
,
4798 LOG_MBOX
| LOG_VPORT
,
4799 "1806 Mbox x%x failed. No vport\n",
4800 pmbox
->u
.mb
.mbxCommand
);
4802 goto out_not_finished
;
4806 /* If the PCI channel is in offline state, do not post mbox. */
4807 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
4808 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4809 goto out_not_finished
;
4812 /* If HBA has a deferred error attention, fail the iocb. */
4813 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
4814 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4815 goto out_not_finished
;
4821 status
= MBX_SUCCESS
;
4823 if (phba
->link_state
== LPFC_HBA_ERROR
) {
4824 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4826 /* Mbox command <mbxCommand> cannot issue */
4827 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4828 "(%d):0311 Mailbox command x%x cannot "
4829 "issue Data: x%x x%x\n",
4830 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4831 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4832 goto out_not_finished
;
4835 if (mb
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
&&
4836 !(readl(phba
->HCregaddr
) & HC_MBINT_ENA
)) {
4837 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4838 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4839 "(%d):2528 Mailbox command x%x cannot "
4840 "issue Data: x%x x%x\n",
4841 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4842 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4843 goto out_not_finished
;
4846 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
4847 /* Polling for a mbox command when another one is already active
4848 * is not allowed in SLI. Also, the driver must have established
4849 * SLI2 mode to queue and process multiple mbox commands.
4852 if (flag
& MBX_POLL
) {
4853 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4855 /* Mbox command <mbxCommand> cannot issue */
4856 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4857 "(%d):2529 Mailbox command x%x "
4858 "cannot issue Data: x%x x%x\n",
4859 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4860 pmbox
->u
.mb
.mbxCommand
,
4861 psli
->sli_flag
, flag
);
4862 goto out_not_finished
;
4865 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
4866 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4867 /* Mbox command <mbxCommand> cannot issue */
4868 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4869 "(%d):2530 Mailbox command x%x "
4870 "cannot issue Data: x%x x%x\n",
4871 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4872 pmbox
->u
.mb
.mbxCommand
,
4873 psli
->sli_flag
, flag
);
4874 goto out_not_finished
;
4877 /* Another mailbox command is still being processed, queue this
4878 * command to be processed later.
4880 lpfc_mbox_put(phba
, pmbox
);
4882 /* Mbox cmd issue - BUSY */
4883 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4884 "(%d):0308 Mbox cmd issue - BUSY Data: "
4885 "x%x x%x x%x x%x\n",
4886 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
4887 mb
->mbxCommand
, phba
->pport
->port_state
,
4888 psli
->sli_flag
, flag
);
4890 psli
->slistat
.mbox_busy
++;
4891 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4894 lpfc_debugfs_disc_trc(pmbox
->vport
,
4895 LPFC_DISC_TRC_MBOX_VPORT
,
4896 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4897 (uint32_t)mb
->mbxCommand
,
4898 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4901 lpfc_debugfs_disc_trc(phba
->pport
,
4903 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4904 (uint32_t)mb
->mbxCommand
,
4905 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4911 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4913 /* If we are not polling, we MUST be in SLI2 mode */
4914 if (flag
!= MBX_POLL
) {
4915 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
4916 (mb
->mbxCommand
!= MBX_KILL_BOARD
)) {
4917 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4918 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4919 /* Mbox command <mbxCommand> cannot issue */
4920 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4921 "(%d):2531 Mailbox command x%x "
4922 "cannot issue Data: x%x x%x\n",
4923 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4924 pmbox
->u
.mb
.mbxCommand
,
4925 psli
->sli_flag
, flag
);
4926 goto out_not_finished
;
4928 /* timeout active mbox command */
4929 mod_timer(&psli
->mbox_tmo
, (jiffies
+
4930 (HZ
* lpfc_mbox_tmo_val(phba
, mb
->mbxCommand
))));
4933 /* Mailbox cmd <cmd> issue */
4934 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4935 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4937 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4938 mb
->mbxCommand
, phba
->pport
->port_state
,
4939 psli
->sli_flag
, flag
);
4941 if (mb
->mbxCommand
!= MBX_HEARTBEAT
) {
4943 lpfc_debugfs_disc_trc(pmbox
->vport
,
4944 LPFC_DISC_TRC_MBOX_VPORT
,
4945 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4946 (uint32_t)mb
->mbxCommand
,
4947 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4950 lpfc_debugfs_disc_trc(phba
->pport
,
4952 "MBOX Send: cmd:x%x mb:x%x x%x",
4953 (uint32_t)mb
->mbxCommand
,
4954 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4958 psli
->slistat
.mbox_cmd
++;
4959 evtctr
= psli
->slistat
.mbox_event
;
4961 /* next set own bit for the adapter and copy over command word */
4962 mb
->mbxOwner
= OWN_CHIP
;
4964 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
4965 /* Populate mbox extension offset word. */
4966 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
4967 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
4968 = (uint8_t *)phba
->mbox_ext
4969 - (uint8_t *)phba
->mbox
;
4972 /* Copy the mailbox extension data */
4973 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
4974 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
4975 (uint8_t *)phba
->mbox_ext
,
4976 pmbox
->in_ext_byte_len
);
4978 /* Copy command data to host SLIM area */
4979 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4981 /* Populate mbox extension offset word. */
4982 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
4983 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
4984 = MAILBOX_HBA_EXT_OFFSET
;
4986 /* Copy the mailbox extension data */
4987 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
4988 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
4989 MAILBOX_HBA_EXT_OFFSET
,
4990 pmbox
->context2
, pmbox
->in_ext_byte_len
);
4993 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4994 /* copy command data into host mbox for cmpl */
4995 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4998 /* First copy mbox command data to HBA SLIM, skip past first
5000 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
5001 lpfc_memcpy_to_slim(to_slim
, &mb
->un
.varWords
[0],
5002 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
5004 /* Next copy over first word, with mbxOwner set */
5005 ldata
= *((uint32_t *)mb
);
5006 to_slim
= phba
->MBslimaddr
;
5007 writel(ldata
, to_slim
);
5008 readl(to_slim
); /* flush */
5010 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5011 /* switch over to host mailbox */
5012 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
5020 /* Set up reference to mailbox command */
5021 psli
->mbox_active
= pmbox
;
5022 /* Interrupt board to do it */
5023 writel(CA_MBATT
, phba
->CAregaddr
);
5024 readl(phba
->CAregaddr
); /* flush */
5025 /* Don't wait for it to finish, just return */
5029 /* Set up null reference to mailbox command */
5030 psli
->mbox_active
= NULL
;
5031 /* Interrupt board to do it */
5032 writel(CA_MBATT
, phba
->CAregaddr
);
5033 readl(phba
->CAregaddr
); /* flush */
5035 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5036 /* First read mbox status word */
5037 word0
= *((uint32_t *)phba
->mbox
);
5038 word0
= le32_to_cpu(word0
);
5040 /* First read mbox status word */
5041 word0
= readl(phba
->MBslimaddr
);
5044 /* Read the HBA Host Attention Register */
5045 ha_copy
= readl(phba
->HAregaddr
);
5046 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
5050 /* Wait for command to complete */
5051 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
5052 (!(ha_copy
& HA_MBATT
) &&
5053 (phba
->link_state
> LPFC_WARM_START
))) {
5054 if (time_after(jiffies
, timeout
)) {
5055 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5056 spin_unlock_irqrestore(&phba
->hbalock
,
5058 goto out_not_finished
;
5061 /* Check if we took a mbox interrupt while we were
5063 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
5064 && (evtctr
!= psli
->slistat
.mbox_event
))
5068 spin_unlock_irqrestore(&phba
->hbalock
,
5071 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5074 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5075 /* First copy command data */
5076 word0
= *((uint32_t *)phba
->mbox
);
5077 word0
= le32_to_cpu(word0
);
5078 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5081 /* Check real SLIM for any errors */
5082 slimword0
= readl(phba
->MBslimaddr
);
5083 slimmb
= (MAILBOX_t
*) & slimword0
;
5084 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
5085 && slimmb
->mbxStatus
) {
5092 /* First copy command data */
5093 word0
= readl(phba
->MBslimaddr
);
5095 /* Read the HBA Host Attention Register */
5096 ha_copy
= readl(phba
->HAregaddr
);
5099 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5100 /* copy results back to user */
5101 lpfc_sli_pcimem_bcopy(phba
->mbox
, mb
, MAILBOX_CMD_SIZE
);
5102 /* Copy the mailbox extension data */
5103 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5104 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
5106 pmbox
->out_ext_byte_len
);
5109 /* First copy command data */
5110 lpfc_memcpy_from_slim(mb
, phba
->MBslimaddr
,
5112 /* Copy the mailbox extension data */
5113 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5114 lpfc_memcpy_from_slim(pmbox
->context2
,
5116 MAILBOX_HBA_EXT_OFFSET
,
5117 pmbox
->out_ext_byte_len
);
5121 writel(HA_MBATT
, phba
->HAregaddr
);
5122 readl(phba
->HAregaddr
); /* flush */
5124 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5125 status
= mb
->mbxStatus
;
5128 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5132 if (processing_queue
) {
5133 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5134 lpfc_mbox_cmpl_put(phba
, pmbox
);
5136 return MBX_NOT_FINISHED
;
5140 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5141 * @phba: Pointer to HBA context object.
5143 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5144 * the driver internal pending mailbox queue. It will then try to wait out the
5145 * possible outstanding mailbox command before return.
5148 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5149 * the outstanding mailbox command timed out.
5152 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
5154 struct lpfc_sli
*psli
= &phba
->sli
;
5155 uint8_t actcmd
= MBX_HEARTBEAT
;
5157 unsigned long timeout
;
5159 /* Mark the asynchronous mailbox command posting as blocked */
5160 spin_lock_irq(&phba
->hbalock
);
5161 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
5162 if (phba
->sli
.mbox_active
)
5163 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
5164 spin_unlock_irq(&phba
->hbalock
);
5165 /* Determine how long we might wait for the active mailbox
5166 * command to be gracefully completed by firmware.
5168 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
5170 /* Wait for the outstnading mailbox command to complete */
5171 while (phba
->sli
.mbox_active
) {
5172 /* Check active mailbox complete status every 2ms */
5174 if (time_after(jiffies
, timeout
)) {
5175 /* Timeout, marked the outstanding cmd not complete */
5181 /* Can not cleanly block async mailbox command, fails it */
5183 spin_lock_irq(&phba
->hbalock
);
5184 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5185 spin_unlock_irq(&phba
->hbalock
);
5191 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5192 * @phba: Pointer to HBA context object.
5194 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5195 * commands from the driver internal pending mailbox queue. It makes sure
5196 * that there is no outstanding mailbox command before resuming posting
5197 * asynchronous mailbox commands. If, for any reason, there is outstanding
5198 * mailbox command, it will try to wait it out before resuming asynchronous
5199 * mailbox command posting.
5202 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
5204 struct lpfc_sli
*psli
= &phba
->sli
;
5206 spin_lock_irq(&phba
->hbalock
);
5207 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5208 /* Asynchronous mailbox posting is not blocked, do nothing */
5209 spin_unlock_irq(&phba
->hbalock
);
5213 /* Outstanding synchronous mailbox command is guaranteed to be done,
5214 * successful or timeout, after timing-out the outstanding mailbox
5215 * command shall always be removed, so just unblock posting async
5216 * mailbox command and resume
5218 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5219 spin_unlock_irq(&phba
->hbalock
);
5221 /* wake up worker thread to post asynchronlous mailbox command */
5222 lpfc_worker_wake_up(phba
);
5226 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5227 * @phba: Pointer to HBA context object.
5228 * @mboxq: Pointer to mailbox object.
5230 * The function posts a mailbox to the port. The mailbox is expected
5231 * to be comletely filled in and ready for the port to operate on it.
5232 * This routine executes a synchronous completion operation on the
5233 * mailbox by polling for its completion.
5235 * The caller must not be holding any locks when calling this routine.
5238 * MBX_SUCCESS - mailbox posted successfully
5239 * Any of the MBX error values.
5242 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5244 int rc
= MBX_SUCCESS
;
5245 unsigned long iflag
;
5247 uint32_t mcqe_status
;
5249 unsigned long timeout
;
5250 struct lpfc_sli
*psli
= &phba
->sli
;
5251 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
5252 struct lpfc_bmbx_create
*mbox_rgn
;
5253 struct dma_address
*dma_address
;
5254 struct lpfc_register bmbx_reg
;
5257 * Only one mailbox can be active to the bootstrap mailbox region
5258 * at a time and there is no queueing provided.
5260 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5261 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5262 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5263 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5264 "(%d):2532 Mailbox command x%x (x%x) "
5265 "cannot issue Data: x%x x%x\n",
5266 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5267 mboxq
->u
.mb
.mbxCommand
,
5268 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5269 psli
->sli_flag
, MBX_POLL
);
5270 return MBXERR_ERROR
;
5272 /* The server grabs the token and owns it until release */
5273 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5274 phba
->sli
.mbox_active
= mboxq
;
5275 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5278 * Initialize the bootstrap memory region to avoid stale data areas
5279 * in the mailbox post. Then copy the caller's mailbox contents to
5280 * the bmbx mailbox region.
5282 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
5283 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
5284 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
5285 sizeof(struct lpfc_mqe
));
5287 /* Post the high mailbox dma address to the port and wait for ready. */
5288 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5289 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
5291 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5294 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5295 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5299 if (time_after(jiffies
, timeout
)) {
5303 } while (!db_ready
);
5305 /* Post the low mailbox dma address to the port. */
5306 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
5307 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5310 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5311 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5315 if (time_after(jiffies
, timeout
)) {
5319 } while (!db_ready
);
5322 * Read the CQ to ensure the mailbox has completed.
5323 * If so, update the mailbox status so that the upper layers
5324 * can complete the request normally.
5326 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
5327 sizeof(struct lpfc_mqe
));
5328 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
5329 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
5330 sizeof(struct lpfc_mcqe
));
5331 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
5333 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5334 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
5335 bf_set(lpfc_mqe_status
, mb
, LPFC_MBX_ERROR_RANGE
| mcqe_status
);
5338 lpfc_sli4_swap_str(phba
, mboxq
);
5340 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5341 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5342 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5343 " x%x x%x CQ: x%x x%x x%x x%x\n",
5344 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5345 mbx_cmnd
, lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5346 bf_get(lpfc_mqe_status
, mb
),
5347 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
5348 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
5349 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
5350 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
5351 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
5352 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
5353 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
5354 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
5355 mboxq
->mcqe
.trailer
);
5357 /* We are holding the token, no needed for lock when release */
5358 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5359 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5360 phba
->sli
.mbox_active
= NULL
;
5361 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5366 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5367 * @phba: Pointer to HBA context object.
5368 * @pmbox: Pointer to mailbox object.
5369 * @flag: Flag indicating how the mailbox need to be processed.
5371 * This function is called by discovery code and HBA management code to submit
5372 * a mailbox command to firmware with SLI-4 interface spec.
5374 * Return codes the caller owns the mailbox command after the return of the
5378 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
5381 struct lpfc_sli
*psli
= &phba
->sli
;
5382 unsigned long iflags
;
5385 rc
= lpfc_mbox_dev_check(phba
);
5387 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5388 "(%d):2544 Mailbox command x%x (x%x) "
5389 "cannot issue Data: x%x x%x\n",
5390 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5391 mboxq
->u
.mb
.mbxCommand
,
5392 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5393 psli
->sli_flag
, flag
);
5394 goto out_not_finished
;
5397 /* Detect polling mode and jump to a handler */
5398 if (!phba
->sli4_hba
.intr_enable
) {
5399 if (flag
== MBX_POLL
)
5400 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5403 if (rc
!= MBX_SUCCESS
)
5404 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5405 "(%d):2541 Mailbox command x%x "
5406 "(x%x) cannot issue Data: x%x x%x\n",
5407 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5408 mboxq
->u
.mb
.mbxCommand
,
5409 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5410 psli
->sli_flag
, flag
);
5412 } else if (flag
== MBX_POLL
) {
5413 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
5414 "(%d):2542 Try to issue mailbox command "
5415 "x%x (x%x) synchronously ahead of async"
5416 "mailbox command queue: x%x x%x\n",
5417 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5418 mboxq
->u
.mb
.mbxCommand
,
5419 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5420 psli
->sli_flag
, flag
);
5421 /* Try to block the asynchronous mailbox posting */
5422 rc
= lpfc_sli4_async_mbox_block(phba
);
5424 /* Successfully blocked, now issue sync mbox cmd */
5425 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5426 if (rc
!= MBX_SUCCESS
)
5427 lpfc_printf_log(phba
, KERN_ERR
,
5429 "(%d):2597 Mailbox command "
5430 "x%x (x%x) cannot issue "
5433 mboxq
->vport
->vpi
: 0,
5434 mboxq
->u
.mb
.mbxCommand
,
5435 lpfc_sli4_mbox_opcode_get(phba
,
5437 psli
->sli_flag
, flag
);
5438 /* Unblock the async mailbox posting afterward */
5439 lpfc_sli4_async_mbox_unblock(phba
);
5444 /* Now, interrupt mode asynchrous mailbox command */
5445 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
5447 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5448 "(%d):2543 Mailbox command x%x (x%x) "
5449 "cannot issue Data: x%x x%x\n",
5450 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5451 mboxq
->u
.mb
.mbxCommand
,
5452 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5453 psli
->sli_flag
, flag
);
5454 goto out_not_finished
;
5457 /* Put the mailbox command to the driver internal FIFO */
5458 psli
->slistat
.mbox_busy
++;
5459 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5460 lpfc_mbox_put(phba
, mboxq
);
5461 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5462 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5463 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5464 "x%x (x%x) x%x x%x x%x\n",
5465 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
5466 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5467 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5468 phba
->pport
->port_state
,
5469 psli
->sli_flag
, MBX_NOWAIT
);
5470 /* Wake up worker thread to transport mailbox command from head */
5471 lpfc_worker_wake_up(phba
);
5476 return MBX_NOT_FINISHED
;
5480 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5481 * @phba: Pointer to HBA context object.
5483 * This function is called by worker thread to send a mailbox command to
5484 * SLI4 HBA firmware.
5488 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
5490 struct lpfc_sli
*psli
= &phba
->sli
;
5491 LPFC_MBOXQ_t
*mboxq
;
5492 int rc
= MBX_SUCCESS
;
5493 unsigned long iflags
;
5494 struct lpfc_mqe
*mqe
;
5497 /* Check interrupt mode before post async mailbox command */
5498 if (unlikely(!phba
->sli4_hba
.intr_enable
))
5499 return MBX_NOT_FINISHED
;
5501 /* Check for mailbox command service token */
5502 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5503 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5504 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5505 return MBX_NOT_FINISHED
;
5507 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5508 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5509 return MBX_NOT_FINISHED
;
5511 if (unlikely(phba
->sli
.mbox_active
)) {
5512 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5513 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5514 "0384 There is pending active mailbox cmd\n");
5515 return MBX_NOT_FINISHED
;
5517 /* Take the mailbox command service token */
5518 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5520 /* Get the next mailbox command from head of queue */
5521 mboxq
= lpfc_mbox_get(phba
);
5523 /* If no more mailbox command waiting for post, we're done */
5525 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5526 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5529 phba
->sli
.mbox_active
= mboxq
;
5530 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5532 /* Check device readiness for posting mailbox command */
5533 rc
= lpfc_mbox_dev_check(phba
);
5535 /* Driver clean routine will clean up pending mailbox */
5536 goto out_not_finished
;
5538 /* Prepare the mbox command to be posted */
5539 mqe
= &mboxq
->u
.mqe
;
5540 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
5542 /* Start timer for the mbox_tmo and log some mailbox post messages */
5543 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5544 (HZ
* lpfc_mbox_tmo_val(phba
, mbx_cmnd
))));
5546 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5547 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5549 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
5550 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5551 phba
->pport
->port_state
, psli
->sli_flag
);
5553 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
5555 lpfc_debugfs_disc_trc(mboxq
->vport
,
5556 LPFC_DISC_TRC_MBOX_VPORT
,
5557 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5558 mbx_cmnd
, mqe
->un
.mb_words
[0],
5559 mqe
->un
.mb_words
[1]);
5561 lpfc_debugfs_disc_trc(phba
->pport
,
5563 "MBOX Send: cmd:x%x mb:x%x x%x",
5564 mbx_cmnd
, mqe
->un
.mb_words
[0],
5565 mqe
->un
.mb_words
[1]);
5568 psli
->slistat
.mbox_cmd
++;
5570 /* Post the mailbox command to the port */
5571 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
5572 if (rc
!= MBX_SUCCESS
) {
5573 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5574 "(%d):2533 Mailbox command x%x (x%x) "
5575 "cannot issue Data: x%x x%x\n",
5576 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5577 mboxq
->u
.mb
.mbxCommand
,
5578 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5579 psli
->sli_flag
, MBX_NOWAIT
);
5580 goto out_not_finished
;
5586 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5587 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5588 __lpfc_mbox_cmpl_put(phba
, mboxq
);
5589 /* Release the token */
5590 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5591 phba
->sli
.mbox_active
= NULL
;
5592 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5594 return MBX_NOT_FINISHED
;
5598 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5599 * @phba: Pointer to HBA context object.
5600 * @pmbox: Pointer to mailbox object.
5601 * @flag: Flag indicating how the mailbox need to be processed.
5603 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5604 * the API jump table function pointer from the lpfc_hba struct.
5606 * Return codes the caller owns the mailbox command after the return of the
5610 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
5612 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
5616 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5617 * @phba: The hba struct for which this call is being executed.
5618 * @dev_grp: The HBA PCI-Device group number.
5620 * This routine sets up the mbox interface API function jump table in @phba
5622 * Returns: 0 - success, -ENODEV - failure.
5625 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
5629 case LPFC_PCI_DEV_LP
:
5630 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
5631 phba
->lpfc_sli_handle_slow_ring_event
=
5632 lpfc_sli_handle_slow_ring_event_s3
;
5633 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
5634 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
5635 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
5637 case LPFC_PCI_DEV_OC
:
5638 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
5639 phba
->lpfc_sli_handle_slow_ring_event
=
5640 lpfc_sli_handle_slow_ring_event_s4
;
5641 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
5642 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
5643 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
5646 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5647 "1420 Invalid HBA PCI-device group: 0x%x\n",
5656 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5657 * @phba: Pointer to HBA context object.
5658 * @pring: Pointer to driver SLI ring object.
5659 * @piocb: Pointer to address of newly added command iocb.
5661 * This function is called with hbalock held to add a command
5662 * iocb to the txq when SLI layer cannot submit the command iocb
5666 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5667 struct lpfc_iocbq
*piocb
)
5669 /* Insert the caller's iocb in the txq tail for later processing. */
5670 list_add_tail(&piocb
->list
, &pring
->txq
);
5675 * lpfc_sli_next_iocb - Get the next iocb in the txq
5676 * @phba: Pointer to HBA context object.
5677 * @pring: Pointer to driver SLI ring object.
5678 * @piocb: Pointer to address of newly added command iocb.
5680 * This function is called with hbalock held before a new
5681 * iocb is submitted to the firmware. This function checks
5682 * txq to flush the iocbs in txq to Firmware before
5683 * submitting new iocbs to the Firmware.
5684 * If there are iocbs in the txq which need to be submitted
5685 * to firmware, lpfc_sli_next_iocb returns the first element
5686 * of the txq after dequeuing it from txq.
5687 * If there is no iocb in the txq then the function will return
5688 * *piocb and *piocb is set to NULL. Caller needs to check
5689 * *piocb to find if there are more commands in the txq.
5691 static struct lpfc_iocbq
*
5692 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5693 struct lpfc_iocbq
**piocb
)
5695 struct lpfc_iocbq
* nextiocb
;
5697 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
5707 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5708 * @phba: Pointer to HBA context object.
5709 * @ring_number: SLI ring number to issue iocb on.
5710 * @piocb: Pointer to command iocb.
5711 * @flag: Flag indicating if this command can be put into txq.
5713 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5714 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5715 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5716 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5717 * this function allows only iocbs for posting buffers. This function finds
5718 * next available slot in the command ring and posts the command to the
5719 * available slot and writes the port attention register to request HBA start
5720 * processing new iocb. If there is no slot available in the ring and
5721 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5722 * the function returns IOCB_BUSY.
5724 * This function is called with hbalock held. The function will return success
5725 * after it successfully submit the iocb to firmware or after adding to the
5729 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
5730 struct lpfc_iocbq
*piocb
, uint32_t flag
)
5732 struct lpfc_iocbq
*nextiocb
;
5734 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
5736 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
5737 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
5738 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
5739 lpfc_printf_log(phba
, KERN_ERR
,
5740 LOG_SLI
| LOG_VPORT
,
5741 "1807 IOCB x%x failed. No vport\n",
5742 piocb
->iocb
.ulpCommand
);
5748 /* If the PCI channel is in offline state, do not post iocbs. */
5749 if (unlikely(pci_channel_offline(phba
->pcidev
)))
5752 /* If HBA has a deferred error attention, fail the iocb. */
5753 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
5757 * We should never get an IOCB if we are in a < LINK_DOWN state
5759 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
5763 * Check to see if we are blocking IOCB processing because of a
5764 * outstanding event.
5766 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
5769 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
5771 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5772 * can be issued if the link is not up.
5774 switch (piocb
->iocb
.ulpCommand
) {
5775 case CMD_GEN_REQUEST64_CR
:
5776 case CMD_GEN_REQUEST64_CX
:
5777 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
5778 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
5779 FC_RCTL_DD_UNSOL_CMD
) ||
5780 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
5781 MENLO_TRANSPORT_TYPE
))
5785 case CMD_QUE_RING_BUF_CN
:
5786 case CMD_QUE_RING_BUF64_CN
:
5788 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5789 * completion, iocb_cmpl MUST be 0.
5791 if (piocb
->iocb_cmpl
)
5792 piocb
->iocb_cmpl
= NULL
;
5794 case CMD_CREATE_XRI_CR
:
5795 case CMD_CLOSE_XRI_CN
:
5796 case CMD_CLOSE_XRI_CX
:
5803 * For FCP commands, we must be in a state where we can process link
5806 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
5807 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
5811 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
5812 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
5813 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
5816 lpfc_sli_update_ring(phba
, pring
);
5818 lpfc_sli_update_full_ring(phba
, pring
);
5821 return IOCB_SUCCESS
;
5826 pring
->stats
.iocb_cmd_delay
++;
5830 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
5831 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
5832 return IOCB_SUCCESS
;
5839 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5840 * @phba: Pointer to HBA context object.
5841 * @piocb: Pointer to command iocb.
5842 * @sglq: Pointer to the scatter gather queue object.
5844 * This routine converts the bpl or bde that is in the IOCB
5845 * to a sgl list for the sli4 hardware. The physical address
5846 * of the bpl/bde is converted back to a virtual address.
5847 * If the IOCB contains a BPL then the list of BDE's is
5848 * converted to sli4_sge's. If the IOCB contains a single
5849 * BDE then it is converted to a single sli_sge.
5850 * The IOCB is still in cpu endianess so the contents of
5851 * the bpl can be used without byte swapping.
5853 * Returns valid XRI = Success, NO_XRI = Failure.
5856 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
5857 struct lpfc_sglq
*sglq
)
5859 uint16_t xritag
= NO_XRI
;
5860 struct ulp_bde64
*bpl
= NULL
;
5861 struct ulp_bde64 bde
;
5862 struct sli4_sge
*sgl
= NULL
;
5867 if (!piocbq
|| !sglq
)
5870 sgl
= (struct sli4_sge
*)sglq
->sgl
;
5871 icmd
= &piocbq
->iocb
;
5872 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5873 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
5874 sizeof(struct ulp_bde64
);
5875 /* The addrHigh and addrLow fields within the IOCB
5876 * have not been byteswapped yet so there is no
5877 * need to swap them back.
5879 bpl
= (struct ulp_bde64
*)
5880 ((struct lpfc_dmabuf
*)piocbq
->context3
)->virt
;
5885 for (i
= 0; i
< numBdes
; i
++) {
5886 /* Should already be byte swapped. */
5887 sgl
->addr_hi
= bpl
->addrHigh
;
5888 sgl
->addr_lo
= bpl
->addrLow
;
5890 if ((i
+1) == numBdes
)
5891 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5893 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
5894 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5895 /* swap the size field back to the cpu so we
5896 * can assign it to the sgl.
5898 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5899 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
5903 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
5904 /* The addrHigh and addrLow fields of the BDE have not
5905 * been byteswapped yet so they need to be swapped
5906 * before putting them in the sgl.
5909 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
5911 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
5912 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5913 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5915 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
5917 return sglq
->sli4_xritag
;
5921 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5922 * @phba: Pointer to HBA context object.
5924 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5925 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5928 * Return: index into SLI4 fast-path FCP queue index.
5931 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
5934 if (phba
->fcp_qidx
>= phba
->cfg_fcp_wq_count
)
5937 return phba
->fcp_qidx
;
5941 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5942 * @phba: Pointer to HBA context object.
5943 * @piocb: Pointer to command iocb.
5944 * @wqe: Pointer to the work queue entry.
5946 * This routine converts the iocb command to its Work Queue Entry
5947 * equivalent. The wqe pointer should not have any fields set when
5948 * this routine is called because it will memcpy over them.
5949 * This routine does not set the CQ_ID or the WQEC bits in the
5952 * Returns: 0 = Success, IOCB_ERROR = Failure.
5955 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
5956 union lpfc_wqe
*wqe
)
5958 uint32_t xmit_len
= 0, total_len
= 0;
5962 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
5965 uint16_t abrt_iotag
;
5966 struct lpfc_iocbq
*abrtiocbq
;
5967 struct ulp_bde64
*bpl
= NULL
;
5968 uint32_t els_id
= ELS_ID_DEFAULT
;
5970 struct ulp_bde64 bde
;
5972 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
5973 /* The fcp commands will set command type */
5974 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
5975 command_type
= FCP_COMMAND
;
5976 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
5977 command_type
= ELS_COMMAND_FIP
;
5979 command_type
= ELS_COMMAND_NON_FIP
;
5981 /* Some of the fields are in the right position already */
5982 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
5983 abort_tag
= (uint32_t) iocbq
->iotag
;
5984 xritag
= iocbq
->sli4_xritag
;
5985 wqe
->words
[7] = 0; /* The ct field has moved so reset */
5986 /* words0-2 bpl convert bde */
5987 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5988 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
5989 sizeof(struct ulp_bde64
);
5990 bpl
= (struct ulp_bde64
*)
5991 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
5995 /* Should already be byte swapped. */
5996 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
5997 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
5998 /* swap the size field back to the cpu so we
5999 * can assign it to the sgl.
6001 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
6002 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
6004 for (i
= 0; i
< numBdes
; i
++) {
6005 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
6006 total_len
+= bde
.tus
.f
.bdeSize
;
6009 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
6011 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
6012 cmnd
= iocbq
->iocb
.ulpCommand
;
6014 switch (iocbq
->iocb
.ulpCommand
) {
6015 case CMD_ELS_REQUEST64_CR
:
6016 if (!iocbq
->iocb
.ulpLe
) {
6017 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6018 "2007 Only Limited Edition cmd Format"
6019 " supported 0x%x\n",
6020 iocbq
->iocb
.ulpCommand
);
6023 wqe
->els_req
.payload_len
= xmit_len
;
6024 /* Els_reguest64 has a TMO */
6025 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
6026 iocbq
->iocb
.ulpTimeout
);
6027 /* Need a VF for word 4 set the vf bit*/
6028 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
6029 /* And a VFID for word 12 */
6030 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
6032 * Set ct field to 3, indicates that the context_tag field
6033 * contains the FCFI and remote N_Port_ID is
6037 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6038 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6039 iocbq
->iocb
.ulpContext
);
6041 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, ct
);
6042 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6043 /* CCP CCPE PV PRI in word10 were set in the memcpy */
6045 if (command_type
== ELS_COMMAND_FIP
) {
6046 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
6047 >> LPFC_FIP_ELS_ID_SHIFT
);
6049 bf_set(lpfc_wqe_gen_els_id
, &wqe
->generic
, els_id
);
6052 case CMD_XMIT_SEQUENCE64_CX
:
6053 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6054 iocbq
->iocb
.un
.ulpWord
[3]);
6055 wqe
->generic
.word3
= 0;
6056 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
6057 /* The entire sequence is transmitted for this IOCB */
6058 xmit_len
= total_len
;
6059 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
6060 case CMD_XMIT_SEQUENCE64_CR
:
6061 /* word3 iocb=io_tag32 wqe=payload_offset */
6062 /* payload offset used for multilpe outstanding
6063 * sequences on the same exchange
6066 /* word4 relative_offset memcpy */
6067 /* word5 r_ctl/df_ctl memcpy */
6068 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6069 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
6070 command_type
= OTHER_COMMAND
;
6072 case CMD_XMIT_BCAST64_CN
:
6073 /* word3 iocb=iotag32 wqe=payload_len */
6074 wqe
->words
[3] = 0; /* no definition for this in wqe */
6075 /* word4 iocb=rsvd wqe=rsvd */
6076 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6077 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6078 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6079 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6081 case CMD_FCP_IWRITE64_CR
:
6082 command_type
= FCP_COMMAND_DATA_OUT
;
6083 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
6085 * word3 is payload_len: byte offset to the sgl entry for the
6087 * word4 is total xfer len, same as the IOCB->ulpParameter.
6088 * word5 is initial xfer len 0 = wait for xfer-ready
6091 /* Always wait for xfer-ready before sending data */
6092 wqe
->fcp_iwrite
.initial_xfer_len
= 0;
6093 /* word 4 (xfer length) should have been set on the memcpy */
6095 /* allow write to fall through to read */
6096 case CMD_FCP_IREAD64_CR
:
6097 /* FCP_CMD is always the 1st sgl entry */
6098 wqe
->fcp_iread
.payload_len
=
6099 xmit_len
+ sizeof(struct fcp_rsp
);
6101 /* word 4 (xfer length) should have been set on the memcpy */
6103 bf_set(lpfc_wqe_gen_erp
, &wqe
->generic
,
6104 iocbq
->iocb
.ulpFCP2Rcvy
);
6105 bf_set(lpfc_wqe_gen_lnk
, &wqe
->generic
, iocbq
->iocb
.ulpXS
);
6106 /* The XC bit and the XS bit are similar. The driver never
6107 * tracked whether or not the exchange was previouslly open.
6108 * XC = Exchange create, 0 is create. 1 is already open.
6109 * XS = link cmd: 1 do not close the exchange after command.
6110 * XS = 0 close exchange when command completes.
6111 * The only time we would not set the XC bit is when the XS bit
6112 * is set and we are sending our 2nd or greater command on
6115 /* Always open the exchange */
6116 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6118 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6119 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6121 case CMD_FCP_ICMND64_CR
:
6122 /* Always open the exchange */
6123 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6126 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6127 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6129 case CMD_GEN_REQUEST64_CR
:
6130 /* word3 command length is described as byte offset to the
6131 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6136 wqe
->gen_req
.command_len
= xmit_len
;
6137 /* Word4 parameter copied in the memcpy */
6138 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6139 /* word6 context tag copied in memcpy */
6140 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
6141 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6142 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6143 "2015 Invalid CT %x command 0x%x\n",
6144 ct
, iocbq
->iocb
.ulpCommand
);
6147 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, 0);
6148 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
,
6149 iocbq
->iocb
.ulpTimeout
);
6151 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6152 command_type
= OTHER_COMMAND
;
6154 case CMD_XMIT_ELS_RSP64_CX
:
6155 /* words0-2 BDE memcpy */
6156 /* word3 iocb=iotag32 wqe=rsvd */
6158 /* word4 iocb=did wge=rsvd. */
6160 /* word5 iocb=rsvd wge=did */
6161 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
6162 iocbq
->iocb
.un
.elsreq64
.remoteID
);
6164 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6165 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6167 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6168 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
6169 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
6170 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6171 iocbq
->vport
->vpi
+ phba
->vpi_base
);
6172 command_type
= OTHER_COMMAND
;
6174 case CMD_CLOSE_XRI_CN
:
6175 case CMD_ABORT_XRI_CN
:
6176 case CMD_ABORT_XRI_CX
:
6177 /* words 0-2 memcpy should be 0 rserved */
6178 /* port will send abts */
6179 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
6180 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
6181 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
6182 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
6186 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
6188 * The link is down, or the command was ELS_FIP
6189 * so the fw does not need to send abts
6192 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
6194 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
6195 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
6197 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6198 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6199 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
6201 * The abort handler will send us CMD_ABORT_XRI_CN or
6202 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6204 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, CMD_ABORT_XRI_CX
);
6205 cmnd
= CMD_ABORT_XRI_CX
;
6206 command_type
= OTHER_COMMAND
;
6209 case CMD_XMIT_BLS_RSP64_CX
:
6210 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6211 * we re-construct this WQE here based on information in
6212 * iocbq from scratch.
6214 memset(wqe
, 0, sizeof(union lpfc_wqe
));
6215 /* OX_ID is invariable to who sent ABTS to CT exchange */
6216 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
6217 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_acc
));
6218 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_acc
) ==
6219 LPFC_ABTS_UNSOL_INT
) {
6220 /* ABTS sent by initiator to CT exchange, the
6221 * RX_ID field will be filled with the newly
6222 * allocated responder XRI.
6224 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6225 iocbq
->sli4_xritag
);
6227 /* ABTS sent by responder to CT exchange, the
6228 * RX_ID field will be filled with the responder
6231 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6232 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_acc
));
6234 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
6235 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
6236 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
6237 iocbq
->iocb
.ulpContext
);
6238 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6239 command_type
= OTHER_COMMAND
;
6241 case CMD_XRI_ABORTED_CX
:
6242 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
6243 /* words0-2 are all 0's no bde */
6244 /* word3 and word4 are rsvrd */
6247 /* word5 iocb=rsvd wge=did */
6248 /* There is no remote port id in the IOCB? */
6249 /* Let this fall through and fail */
6250 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
6251 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
6252 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
6253 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
6255 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6256 "2014 Invalid command 0x%x\n",
6257 iocbq
->iocb
.ulpCommand
);
6262 bf_set(lpfc_wqe_gen_xri
, &wqe
->generic
, xritag
);
6263 bf_set(lpfc_wqe_gen_request_tag
, &wqe
->generic
, iocbq
->iotag
);
6264 wqe
->generic
.abort_tag
= abort_tag
;
6265 bf_set(lpfc_wqe_gen_cmd_type
, &wqe
->generic
, command_type
);
6266 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, cmnd
);
6267 bf_set(lpfc_wqe_gen_class
, &wqe
->generic
, iocbq
->iocb
.ulpClass
);
6268 bf_set(lpfc_wqe_gen_cq_id
, &wqe
->generic
, LPFC_WQE_CQ_ID_DEFAULT
);
6274 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6275 * @phba: Pointer to HBA context object.
6276 * @ring_number: SLI ring number to issue iocb on.
6277 * @piocb: Pointer to command iocb.
6278 * @flag: Flag indicating if this command can be put into txq.
6280 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6281 * an iocb command to an HBA with SLI-4 interface spec.
6283 * This function is called with hbalock held. The function will return success
6284 * after it successfully submit the iocb to firmware or after adding to the
6288 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
6289 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6291 struct lpfc_sglq
*sglq
;
6293 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6295 if (piocb
->sli4_xritag
== NO_XRI
) {
6296 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6297 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6300 if (pring
->txq_cnt
) {
6301 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6302 __lpfc_sli_ringtx_put(phba
,
6304 return IOCB_SUCCESS
;
6309 sglq
= __lpfc_sli_get_sglq(phba
);
6311 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6312 __lpfc_sli_ringtx_put(phba
,
6315 return IOCB_SUCCESS
;
6321 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
6322 sglq
= NULL
; /* These IO's already have an XRI and
6326 /* This is a continuation of a commandi,(CX) so this
6327 * sglq is on the active list
6329 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_xritag
);
6335 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
6337 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
6341 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
6344 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
6345 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
6347 * For FCP command IOCB, get a new WQ index to distribute
6348 * WQE across the WQsr. On the other hand, for abort IOCB,
6349 * it carries the same WQ index to the original command
6352 if (piocb
->iocb_flag
& LPFC_IO_FCP
)
6353 piocb
->fcp_wqidx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
6354 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
6358 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
6361 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
6367 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6369 * This routine wraps the actual lockless version for issusing IOCB function
6370 * pointer from the lpfc_hba struct.
6373 * IOCB_ERROR - Error
6374 * IOCB_SUCCESS - Success
6378 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6379 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6381 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6385 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6386 * @phba: The hba struct for which this call is being executed.
6387 * @dev_grp: The HBA PCI-Device group number.
6389 * This routine sets up the SLI interface API function jump table in @phba
6391 * Returns: 0 - success, -ENODEV - failure.
6394 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6398 case LPFC_PCI_DEV_LP
:
6399 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
6400 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
6402 case LPFC_PCI_DEV_OC
:
6403 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
6404 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
6407 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6408 "1419 Invalid HBA PCI-device group: 0x%x\n",
6413 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
6418 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6419 * @phba: Pointer to HBA context object.
6420 * @pring: Pointer to driver SLI ring object.
6421 * @piocb: Pointer to command iocb.
6422 * @flag: Flag indicating if this command can be put into txq.
6424 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6425 * function. This function gets the hbalock and calls
6426 * __lpfc_sli_issue_iocb function and will return the error returned
6427 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6428 * functions which do not hold hbalock.
6431 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6432 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6434 unsigned long iflags
;
6437 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6438 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6439 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6445 * lpfc_extra_ring_setup - Extra ring setup function
6446 * @phba: Pointer to HBA context object.
6448 * This function is called while driver attaches with the
6449 * HBA to setup the extra ring. The extra ring is used
6450 * only when driver needs to support target mode functionality
6451 * or IP over FC functionalities.
6453 * This function is called with no lock held.
6456 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
6458 struct lpfc_sli
*psli
;
6459 struct lpfc_sli_ring
*pring
;
6463 /* Adjust cmd/rsp ring iocb entries more evenly */
6465 /* Take some away from the FCP ring */
6466 pring
= &psli
->ring
[psli
->fcp_ring
];
6467 pring
->numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6468 pring
->numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6469 pring
->numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6470 pring
->numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6472 /* and give them to the extra ring */
6473 pring
= &psli
->ring
[psli
->extra_ring
];
6475 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6476 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6477 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6478 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6480 /* Setup default profile for this ring */
6481 pring
->iotag_max
= 4096;
6482 pring
->num_mask
= 1;
6483 pring
->prt
[0].profile
= 0; /* Mask 0 */
6484 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
6485 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
6486 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
6491 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6492 * @phba: Pointer to HBA context object.
6493 * @pring: Pointer to driver SLI ring object.
6494 * @iocbq: Pointer to iocb object.
6496 * This function is called by the slow ring event handler
6497 * function when there is an ASYNC event iocb in the ring.
6498 * This function is called with no lock held.
6499 * Currently this function handles only temperature related
6500 * ASYNC events. The function decodes the temperature sensor
6501 * event message and posts events for the management applications.
6504 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
6505 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
6510 struct temp_event temp_event_data
;
6511 struct Scsi_Host
*shost
;
6514 icmd
= &iocbq
->iocb
;
6515 evt_code
= icmd
->un
.asyncstat
.evt_code
;
6516 temp
= icmd
->ulpContext
;
6518 if ((evt_code
!= ASYNC_TEMP_WARN
) &&
6519 (evt_code
!= ASYNC_TEMP_SAFE
)) {
6520 iocb_w
= (uint32_t *) icmd
;
6521 lpfc_printf_log(phba
,
6524 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6526 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6527 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6528 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6529 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6531 icmd
->un
.asyncstat
.evt_code
,
6532 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
6533 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
6534 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
6535 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
6539 temp_event_data
.data
= (uint32_t)temp
;
6540 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
6541 if (evt_code
== ASYNC_TEMP_WARN
) {
6542 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
6543 lpfc_printf_log(phba
,
6546 "0347 Adapter is very hot, please take "
6547 "corrective action. temperature : %d Celsius\n",
6550 if (evt_code
== ASYNC_TEMP_SAFE
) {
6551 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
6552 lpfc_printf_log(phba
,
6555 "0340 Adapter temperature is OK now. "
6556 "temperature : %d Celsius\n",
6560 /* Send temperature change event to applications */
6561 shost
= lpfc_shost_from_vport(phba
->pport
);
6562 fc_host_post_vendor_event(shost
, fc_get_event_number(),
6563 sizeof(temp_event_data
), (char *) &temp_event_data
,
6570 * lpfc_sli_setup - SLI ring setup function
6571 * @phba: Pointer to HBA context object.
6573 * lpfc_sli_setup sets up rings of the SLI interface with
6574 * number of iocbs per ring and iotags. This function is
6575 * called while driver attach to the HBA and before the
6576 * interrupts are enabled. So there is no need for locking.
6578 * This function always returns 0.
6581 lpfc_sli_setup(struct lpfc_hba
*phba
)
6583 int i
, totiocbsize
= 0;
6584 struct lpfc_sli
*psli
= &phba
->sli
;
6585 struct lpfc_sli_ring
*pring
;
6587 psli
->num_rings
= MAX_CONFIGURED_RINGS
;
6589 psli
->fcp_ring
= LPFC_FCP_RING
;
6590 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
6591 psli
->extra_ring
= LPFC_EXTRA_RING
;
6593 psli
->iocbq_lookup
= NULL
;
6594 psli
->iocbq_lookup_len
= 0;
6595 psli
->last_iotag
= 0;
6597 for (i
= 0; i
< psli
->num_rings
; i
++) {
6598 pring
= &psli
->ring
[i
];
6600 case LPFC_FCP_RING
: /* ring 0 - FCP */
6601 /* numCiocb and numRiocb are used in config_port */
6602 pring
->numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
6603 pring
->numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
6604 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6605 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6606 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6607 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6608 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6609 SLI3_IOCB_CMD_SIZE
:
6611 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6612 SLI3_IOCB_RSP_SIZE
:
6614 pring
->iotag_ctr
= 0;
6616 (phba
->cfg_hba_queue_depth
* 2);
6617 pring
->fast_iotag
= pring
->iotag_max
;
6618 pring
->num_mask
= 0;
6620 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
6621 /* numCiocb and numRiocb are used in config_port */
6622 pring
->numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
6623 pring
->numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
6624 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6625 SLI3_IOCB_CMD_SIZE
:
6627 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6628 SLI3_IOCB_RSP_SIZE
:
6630 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
6631 pring
->num_mask
= 0;
6633 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
6634 /* numCiocb and numRiocb are used in config_port */
6635 pring
->numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
6636 pring
->numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
6637 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6638 SLI3_IOCB_CMD_SIZE
:
6640 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6641 SLI3_IOCB_RSP_SIZE
:
6643 pring
->fast_iotag
= 0;
6644 pring
->iotag_ctr
= 0;
6645 pring
->iotag_max
= 4096;
6646 pring
->lpfc_sli_rcv_async_status
=
6647 lpfc_sli_async_event_handler
;
6648 pring
->num_mask
= LPFC_MAX_RING_MASK
;
6649 pring
->prt
[0].profile
= 0; /* Mask 0 */
6650 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
6651 pring
->prt
[0].type
= FC_TYPE_ELS
;
6652 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
6653 lpfc_els_unsol_event
;
6654 pring
->prt
[1].profile
= 0; /* Mask 1 */
6655 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
6656 pring
->prt
[1].type
= FC_TYPE_ELS
;
6657 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
6658 lpfc_els_unsol_event
;
6659 pring
->prt
[2].profile
= 0; /* Mask 2 */
6660 /* NameServer Inquiry */
6661 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
6663 pring
->prt
[2].type
= FC_TYPE_CT
;
6664 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
6665 lpfc_ct_unsol_event
;
6666 pring
->prt
[3].profile
= 0; /* Mask 3 */
6667 /* NameServer response */
6668 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
6670 pring
->prt
[3].type
= FC_TYPE_CT
;
6671 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
6672 lpfc_ct_unsol_event
;
6673 /* abort unsolicited sequence */
6674 pring
->prt
[4].profile
= 0; /* Mask 4 */
6675 pring
->prt
[4].rctl
= FC_RCTL_BA_ABTS
;
6676 pring
->prt
[4].type
= FC_TYPE_BLS
;
6677 pring
->prt
[4].lpfc_sli_rcv_unsol_event
=
6678 lpfc_sli4_ct_abort_unsol_event
;
6681 totiocbsize
+= (pring
->numCiocb
* pring
->sizeCiocb
) +
6682 (pring
->numRiocb
* pring
->sizeRiocb
);
6684 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
6685 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6686 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
6687 "SLI2 SLIM Data: x%x x%lx\n",
6688 phba
->brd_no
, totiocbsize
,
6689 (unsigned long) MAX_SLIM_IOCB_SIZE
);
6691 if (phba
->cfg_multi_ring_support
== 2)
6692 lpfc_extra_ring_setup(phba
);
6698 * lpfc_sli_queue_setup - Queue initialization function
6699 * @phba: Pointer to HBA context object.
6701 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6702 * ring. This function also initializes ring indices of each ring.
6703 * This function is called during the initialization of the SLI
6704 * interface of an HBA.
6705 * This function is called with no lock held and always returns
6709 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
6711 struct lpfc_sli
*psli
;
6712 struct lpfc_sli_ring
*pring
;
6716 spin_lock_irq(&phba
->hbalock
);
6717 INIT_LIST_HEAD(&psli
->mboxq
);
6718 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
6719 /* Initialize list headers for txq and txcmplq as double linked lists */
6720 for (i
= 0; i
< psli
->num_rings
; i
++) {
6721 pring
= &psli
->ring
[i
];
6723 pring
->next_cmdidx
= 0;
6724 pring
->local_getidx
= 0;
6726 INIT_LIST_HEAD(&pring
->txq
);
6727 INIT_LIST_HEAD(&pring
->txcmplq
);
6728 INIT_LIST_HEAD(&pring
->iocb_continueq
);
6729 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
6730 INIT_LIST_HEAD(&pring
->postbufq
);
6732 spin_unlock_irq(&phba
->hbalock
);
6737 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6738 * @phba: Pointer to HBA context object.
6740 * This routine flushes the mailbox command subsystem. It will unconditionally
6741 * flush all the mailbox commands in the three possible stages in the mailbox
6742 * command sub-system: pending mailbox command queue; the outstanding mailbox
6743 * command; and completed mailbox command queue. It is caller's responsibility
6744 * to make sure that the driver is in the proper state to flush the mailbox
6745 * command sub-system. Namely, the posting of mailbox commands into the
6746 * pending mailbox command queue from the various clients must be stopped;
6747 * either the HBA is in a state that it will never works on the outstanding
6748 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6749 * mailbox command has been completed.
6752 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
6754 LIST_HEAD(completions
);
6755 struct lpfc_sli
*psli
= &phba
->sli
;
6757 unsigned long iflag
;
6759 /* Flush all the mailbox commands in the mbox system */
6760 spin_lock_irqsave(&phba
->hbalock
, iflag
);
6761 /* The pending mailbox command queue */
6762 list_splice_init(&phba
->sli
.mboxq
, &completions
);
6763 /* The outstanding active mailbox command */
6764 if (psli
->mbox_active
) {
6765 list_add_tail(&psli
->mbox_active
->list
, &completions
);
6766 psli
->mbox_active
= NULL
;
6767 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6769 /* The completed mailbox command queue */
6770 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
6771 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
6773 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6774 while (!list_empty(&completions
)) {
6775 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
6776 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
6778 pmb
->mbox_cmpl(phba
, pmb
);
6783 * lpfc_sli_host_down - Vport cleanup function
6784 * @vport: Pointer to virtual port object.
6786 * lpfc_sli_host_down is called to clean up the resources
6787 * associated with a vport before destroying virtual
6788 * port data structures.
6789 * This function does following operations:
6790 * - Free discovery resources associated with this virtual
6792 * - Free iocbs associated with this virtual port in
6794 * - Send abort for all iocb commands associated with this
6797 * This function is called with no lock held and always returns 1.
6800 lpfc_sli_host_down(struct lpfc_vport
*vport
)
6802 LIST_HEAD(completions
);
6803 struct lpfc_hba
*phba
= vport
->phba
;
6804 struct lpfc_sli
*psli
= &phba
->sli
;
6805 struct lpfc_sli_ring
*pring
;
6806 struct lpfc_iocbq
*iocb
, *next_iocb
;
6808 unsigned long flags
= 0;
6809 uint16_t prev_pring_flag
;
6811 lpfc_cleanup_discovery_resources(vport
);
6813 spin_lock_irqsave(&phba
->hbalock
, flags
);
6814 for (i
= 0; i
< psli
->num_rings
; i
++) {
6815 pring
= &psli
->ring
[i
];
6816 prev_pring_flag
= pring
->flag
;
6817 /* Only slow rings */
6818 if (pring
->ringno
== LPFC_ELS_RING
) {
6819 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6820 /* Set the lpfc data pending flag */
6821 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6824 * Error everything on the txq since these iocbs have not been
6825 * given to the FW yet.
6827 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
6828 if (iocb
->vport
!= vport
)
6830 list_move_tail(&iocb
->list
, &completions
);
6834 /* Next issue ABTS for everything on the txcmplq */
6835 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
6837 if (iocb
->vport
!= vport
)
6839 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
6842 pring
->flag
= prev_pring_flag
;
6845 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6847 /* Cancel all the IOCBs from the completions list */
6848 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6854 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6855 * @phba: Pointer to HBA context object.
6857 * This function cleans up all iocb, buffers, mailbox commands
6858 * while shutting down the HBA. This function is called with no
6859 * lock held and always returns 1.
6860 * This function does the following to cleanup driver resources:
6861 * - Free discovery resources for each virtual port
6862 * - Cleanup any pending fabric iocbs
6863 * - Iterate through the iocb txq and free each entry
6865 * - Free up any buffer posted to the HBA
6866 * - Free mailbox commands in the mailbox queue.
6869 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
6871 LIST_HEAD(completions
);
6872 struct lpfc_sli
*psli
= &phba
->sli
;
6873 struct lpfc_sli_ring
*pring
;
6874 struct lpfc_dmabuf
*buf_ptr
;
6875 unsigned long flags
= 0;
6878 /* Shutdown the mailbox command sub-system */
6879 lpfc_sli_mbox_sys_shutdown(phba
);
6881 lpfc_hba_down_prep(phba
);
6883 lpfc_fabric_abort_hba(phba
);
6885 spin_lock_irqsave(&phba
->hbalock
, flags
);
6886 for (i
= 0; i
< psli
->num_rings
; i
++) {
6887 pring
= &psli
->ring
[i
];
6888 /* Only slow rings */
6889 if (pring
->ringno
== LPFC_ELS_RING
) {
6890 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6891 /* Set the lpfc data pending flag */
6892 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6896 * Error everything on the txq since these iocbs have not been
6897 * given to the FW yet.
6899 list_splice_init(&pring
->txq
, &completions
);
6903 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6905 /* Cancel all the IOCBs from the completions list */
6906 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6909 spin_lock_irqsave(&phba
->hbalock
, flags
);
6910 list_splice_init(&phba
->elsbuf
, &completions
);
6911 phba
->elsbuf_cnt
= 0;
6912 phba
->elsbuf_prev_cnt
= 0;
6913 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6915 while (!list_empty(&completions
)) {
6916 list_remove_head(&completions
, buf_ptr
,
6917 struct lpfc_dmabuf
, list
);
6918 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
6922 /* Return any active mbox cmds */
6923 del_timer_sync(&psli
->mbox_tmo
);
6925 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
6926 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6927 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
6933 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6934 * @srcp: Source memory pointer.
6935 * @destp: Destination memory pointer.
6936 * @cnt: Number of words required to be copied.
6938 * This function is used for copying data between driver memory
6939 * and the SLI memory. This function also changes the endianness
6940 * of each word if native endianness is different from SLI
6941 * endianness. This function can be called with or without
6945 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6947 uint32_t *src
= srcp
;
6948 uint32_t *dest
= destp
;
6952 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
6954 ldata
= le32_to_cpu(ldata
);
6963 * lpfc_sli_bemem_bcopy - SLI memory copy function
6964 * @srcp: Source memory pointer.
6965 * @destp: Destination memory pointer.
6966 * @cnt: Number of words required to be copied.
6968 * This function is used for copying data between a data structure
6969 * with big endian representation to local endianness.
6970 * This function can be called with or without lock.
6973 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6975 uint32_t *src
= srcp
;
6976 uint32_t *dest
= destp
;
6980 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
6982 ldata
= be32_to_cpu(ldata
);
6990 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6991 * @phba: Pointer to HBA context object.
6992 * @pring: Pointer to driver SLI ring object.
6993 * @mp: Pointer to driver buffer object.
6995 * This function is called with no lock held.
6996 * It always return zero after adding the buffer to the postbufq
7000 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7001 struct lpfc_dmabuf
*mp
)
7003 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7005 spin_lock_irq(&phba
->hbalock
);
7006 list_add_tail(&mp
->list
, &pring
->postbufq
);
7007 pring
->postbufq_cnt
++;
7008 spin_unlock_irq(&phba
->hbalock
);
7013 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
7014 * @phba: Pointer to HBA context object.
7016 * When HBQ is enabled, buffers are searched based on tags. This function
7017 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7018 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7019 * does not conflict with tags of buffer posted for unsolicited events.
7020 * The function returns the allocated tag. The function is called with
7024 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
7026 spin_lock_irq(&phba
->hbalock
);
7027 phba
->buffer_tag_count
++;
7029 * Always set the QUE_BUFTAG_BIT to distiguish between
7030 * a tag assigned by HBQ.
7032 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
7033 spin_unlock_irq(&phba
->hbalock
);
7034 return phba
->buffer_tag_count
;
7038 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
7039 * @phba: Pointer to HBA context object.
7040 * @pring: Pointer to driver SLI ring object.
7043 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7044 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7045 * iocb is posted to the response ring with the tag of the buffer.
7046 * This function searches the pring->postbufq list using the tag
7047 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7048 * iocb. If the buffer is found then lpfc_dmabuf object of the
7049 * buffer is returned to the caller else NULL is returned.
7050 * This function is called with no lock held.
7052 struct lpfc_dmabuf
*
7053 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7056 struct lpfc_dmabuf
*mp
, *next_mp
;
7057 struct list_head
*slp
= &pring
->postbufq
;
7059 /* Search postbufq, from the begining, looking for a match on tag */
7060 spin_lock_irq(&phba
->hbalock
);
7061 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7062 if (mp
->buffer_tag
== tag
) {
7063 list_del_init(&mp
->list
);
7064 pring
->postbufq_cnt
--;
7065 spin_unlock_irq(&phba
->hbalock
);
7070 spin_unlock_irq(&phba
->hbalock
);
7071 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7072 "0402 Cannot find virtual addr for buffer tag on "
7073 "ring %d Data x%lx x%p x%p x%x\n",
7074 pring
->ringno
, (unsigned long) tag
,
7075 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7081 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
7082 * @phba: Pointer to HBA context object.
7083 * @pring: Pointer to driver SLI ring object.
7084 * @phys: DMA address of the buffer.
7086 * This function searches the buffer list using the dma_address
7087 * of unsolicited event to find the driver's lpfc_dmabuf object
7088 * corresponding to the dma_address. The function returns the
7089 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7090 * This function is called by the ct and els unsolicited event
7091 * handlers to get the buffer associated with the unsolicited
7094 * This function is called with no lock held.
7096 struct lpfc_dmabuf
*
7097 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7100 struct lpfc_dmabuf
*mp
, *next_mp
;
7101 struct list_head
*slp
= &pring
->postbufq
;
7103 /* Search postbufq, from the begining, looking for a match on phys */
7104 spin_lock_irq(&phba
->hbalock
);
7105 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7106 if (mp
->phys
== phys
) {
7107 list_del_init(&mp
->list
);
7108 pring
->postbufq_cnt
--;
7109 spin_unlock_irq(&phba
->hbalock
);
7114 spin_unlock_irq(&phba
->hbalock
);
7115 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7116 "0410 Cannot find virtual addr for mapped buf on "
7117 "ring %d Data x%llx x%p x%p x%x\n",
7118 pring
->ringno
, (unsigned long long)phys
,
7119 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7124 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7125 * @phba: Pointer to HBA context object.
7126 * @cmdiocb: Pointer to driver command iocb object.
7127 * @rspiocb: Pointer to driver response iocb object.
7129 * This function is the completion handler for the abort iocbs for
7130 * ELS commands. This function is called from the ELS ring event
7131 * handler with no lock held. This function frees memory resources
7132 * associated with the abort iocb.
7135 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7136 struct lpfc_iocbq
*rspiocb
)
7138 IOCB_t
*irsp
= &rspiocb
->iocb
;
7139 uint16_t abort_iotag
, abort_context
;
7140 struct lpfc_iocbq
*abort_iocb
;
7141 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7145 if (irsp
->ulpStatus
) {
7146 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
7147 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
7149 spin_lock_irq(&phba
->hbalock
);
7150 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7151 if (abort_iotag
!= 0 &&
7152 abort_iotag
<= phba
->sli
.last_iotag
)
7154 phba
->sli
.iocbq_lookup
[abort_iotag
];
7156 /* For sli4 the abort_tag is the XRI,
7157 * so the abort routine puts the iotag of the iocb
7158 * being aborted in the context field of the abort
7161 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
7164 * If the iocb is not found in Firmware queue the iocb
7165 * might have completed already. Do not free it again.
7167 if (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) {
7168 if (irsp
->un
.ulpWord
[4] != IOERR_NO_XRI
) {
7169 spin_unlock_irq(&phba
->hbalock
);
7170 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7173 /* For SLI4 the ulpContext field for abort IOCB
7174 * holds the iotag of the IOCB being aborted so
7175 * the local abort_context needs to be reset to
7176 * match the aborted IOCBs ulpContext.
7178 if (abort_iocb
&& phba
->sli_rev
== LPFC_SLI_REV4
)
7179 abort_context
= abort_iocb
->iocb
.ulpContext
;
7182 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
7183 "0327 Cannot abort els iocb %p "
7184 "with tag %x context %x, abort status %x, "
7186 abort_iocb
, abort_iotag
, abort_context
,
7187 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7189 * make sure we have the right iocbq before taking it
7190 * off the txcmplq and try to call completion routine.
7193 abort_iocb
->iocb
.ulpContext
!= abort_context
||
7194 (abort_iocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) == 0)
7195 spin_unlock_irq(&phba
->hbalock
);
7196 else if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7198 * leave the SLI4 aborted command on the txcmplq
7199 * list and the command complete WCQE's XB bit
7200 * will tell whether the SGL (XRI) can be released
7201 * immediately or to the aborted SGL list for the
7202 * following abort XRI from the HBA.
7204 list_del_init(&abort_iocb
->list
);
7205 if (abort_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
7206 abort_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
7207 pring
->txcmplq_cnt
--;
7210 /* Firmware could still be in progress of DMAing
7211 * payload, so don't free data buffer till after
7214 abort_iocb
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
7215 abort_iocb
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
7216 spin_unlock_irq(&phba
->hbalock
);
7218 abort_iocb
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
7219 abort_iocb
->iocb
.un
.ulpWord
[4] = IOERR_ABORT_REQUESTED
;
7220 (abort_iocb
->iocb_cmpl
)(phba
, abort_iocb
, abort_iocb
);
7222 spin_unlock_irq(&phba
->hbalock
);
7225 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7230 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7231 * @phba: Pointer to HBA context object.
7232 * @cmdiocb: Pointer to driver command iocb object.
7233 * @rspiocb: Pointer to driver response iocb object.
7235 * The function is called from SLI ring event handler with no
7236 * lock held. This function is the completion handler for ELS commands
7237 * which are aborted. The function frees memory resources used for
7238 * the aborted ELS commands.
7241 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7242 struct lpfc_iocbq
*rspiocb
)
7244 IOCB_t
*irsp
= &rspiocb
->iocb
;
7246 /* ELS cmd tag <ulpIoTag> completes */
7247 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
7248 "0139 Ignoring ELS cmd tag x%x completion Data: "
7250 irsp
->ulpIoTag
, irsp
->ulpStatus
,
7251 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
7252 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
7253 lpfc_ct_free_iocb(phba
, cmdiocb
);
7255 lpfc_els_free_iocb(phba
, cmdiocb
);
7260 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7261 * @phba: Pointer to HBA context object.
7262 * @pring: Pointer to driver SLI ring object.
7263 * @cmdiocb: Pointer to driver command iocb object.
7265 * This function issues an abort iocb for the provided command
7266 * iocb. This function is called with hbalock held.
7267 * The function returns 0 when it fails due to memory allocation
7268 * failure or when the command iocb is an abort request.
7271 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7272 struct lpfc_iocbq
*cmdiocb
)
7274 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7275 struct lpfc_iocbq
*abtsiocbp
;
7276 IOCB_t
*icmd
= NULL
;
7277 IOCB_t
*iabt
= NULL
;
7278 int retval
= IOCB_ERROR
;
7281 * There are certain command types we don't want to abort. And we
7282 * don't want to abort commands that are already in the process of
7285 icmd
= &cmdiocb
->iocb
;
7286 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7287 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7288 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7291 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7292 * callback so that nothing happens when it finishes.
7294 if ((vport
->load_flag
& FC_UNLOADING
) &&
7295 (pring
->ringno
== LPFC_ELS_RING
)) {
7296 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
7297 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
7299 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
7300 goto abort_iotag_exit
;
7303 /* issue ABTS for this IOCB based on iotag */
7304 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
7305 if (abtsiocbp
== NULL
)
7308 /* This signals the response to set the correct status
7309 * before calling the completion handler
7311 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
7313 iabt
= &abtsiocbp
->iocb
;
7314 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7315 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
7316 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7317 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
7318 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
7321 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
7323 iabt
->ulpClass
= icmd
->ulpClass
;
7325 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7326 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
7327 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
7328 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7330 if (phba
->link_state
>= LPFC_LINK_UP
)
7331 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
7333 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
7335 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
7337 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
7338 "0339 Abort xri x%x, original iotag x%x, "
7339 "abort cmd iotag x%x\n",
7340 iabt
->un
.acxri
.abortIoTag
,
7341 iabt
->un
.acxri
.abortContextTag
,
7343 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
, abtsiocbp
, 0);
7346 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
7349 * Caller to this routine should check for IOCB_ERROR
7350 * and handle it properly. This routine no longer removes
7351 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7357 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7358 * @iocbq: Pointer to driver iocb object.
7359 * @vport: Pointer to driver virtual port object.
7360 * @tgt_id: SCSI ID of the target.
7361 * @lun_id: LUN ID of the scsi device.
7362 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7364 * This function acts as an iocb filter for functions which abort or count
7365 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7366 * 0 if the filtering criteria is met for the given iocb and will return
7367 * 1 if the filtering criteria is not met.
7368 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7369 * given iocb is for the SCSI device specified by vport, tgt_id and
7371 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7372 * given iocb is for the SCSI target specified by vport and tgt_id
7374 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7375 * given iocb is for the SCSI host associated with the given vport.
7376 * This function is called with no locks held.
7379 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
7380 uint16_t tgt_id
, uint64_t lun_id
,
7381 lpfc_ctx_cmd ctx_cmd
)
7383 struct lpfc_scsi_buf
*lpfc_cmd
;
7386 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
7389 if (iocbq
->vport
!= vport
)
7392 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
7394 if (lpfc_cmd
->pCmd
== NULL
)
7399 if ((lpfc_cmd
->rdata
->pnode
) &&
7400 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
7401 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
7405 if ((lpfc_cmd
->rdata
->pnode
) &&
7406 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
7413 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
7422 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7423 * @vport: Pointer to virtual port.
7424 * @tgt_id: SCSI ID of the target.
7425 * @lun_id: LUN ID of the scsi device.
7426 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7428 * This function returns number of FCP commands pending for the vport.
7429 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7430 * commands pending on the vport associated with SCSI device specified
7431 * by tgt_id and lun_id parameters.
7432 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7433 * commands pending on the vport associated with SCSI target specified
7434 * by tgt_id parameter.
7435 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7436 * commands pending on the vport.
7437 * This function returns the number of iocbs which satisfy the filter.
7438 * This function is called without any lock held.
7441 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
7442 lpfc_ctx_cmd ctx_cmd
)
7444 struct lpfc_hba
*phba
= vport
->phba
;
7445 struct lpfc_iocbq
*iocbq
;
7448 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
7449 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7451 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
7460 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7461 * @phba: Pointer to HBA context object
7462 * @cmdiocb: Pointer to command iocb object.
7463 * @rspiocb: Pointer to response iocb object.
7465 * This function is called when an aborted FCP iocb completes. This
7466 * function is called by the ring event handler with no lock held.
7467 * This function frees the iocb.
7470 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7471 struct lpfc_iocbq
*rspiocb
)
7473 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7478 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7479 * @vport: Pointer to virtual port.
7480 * @pring: Pointer to driver SLI ring object.
7481 * @tgt_id: SCSI ID of the target.
7482 * @lun_id: LUN ID of the scsi device.
7483 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7485 * This function sends an abort command for every SCSI command
7486 * associated with the given virtual port pending on the ring
7487 * filtered by lpfc_sli_validate_fcp_iocb function.
7488 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7489 * FCP iocbs associated with lun specified by tgt_id and lun_id
7491 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7492 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7493 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7494 * FCP iocbs associated with virtual port.
7495 * This function returns number of iocbs it failed to abort.
7496 * This function is called with no locks held.
7499 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
7500 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
7502 struct lpfc_hba
*phba
= vport
->phba
;
7503 struct lpfc_iocbq
*iocbq
;
7504 struct lpfc_iocbq
*abtsiocb
;
7506 int errcnt
= 0, ret_val
= 0;
7509 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
7510 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7512 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
7516 /* issue ABTS for this IOCB based on iotag */
7517 abtsiocb
= lpfc_sli_get_iocbq(phba
);
7518 if (abtsiocb
== NULL
) {
7524 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7525 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
7526 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7527 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
7529 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
7530 abtsiocb
->iocb
.ulpLe
= 1;
7531 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
7532 abtsiocb
->vport
= phba
->pport
;
7534 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7535 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
7536 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
7537 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7539 if (lpfc_is_link_up(phba
))
7540 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
7542 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
7544 /* Setup callback routine and issue the command. */
7545 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
7546 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
7548 if (ret_val
== IOCB_ERROR
) {
7549 lpfc_sli_release_iocbq(phba
, abtsiocb
);
7559 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7560 * @phba: Pointer to HBA context object.
7561 * @cmdiocbq: Pointer to command iocb.
7562 * @rspiocbq: Pointer to response iocb.
7564 * This function is the completion handler for iocbs issued using
7565 * lpfc_sli_issue_iocb_wait function. This function is called by the
7566 * ring event handler function without any lock held. This function
7567 * can be called from both worker thread context and interrupt
7568 * context. This function also can be called from other thread which
7569 * cleans up the SLI layer objects.
7570 * This function copy the contents of the response iocb to the
7571 * response iocb memory object provided by the caller of
7572 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7573 * sleeps for the iocb completion.
7576 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
7577 struct lpfc_iocbq
*cmdiocbq
,
7578 struct lpfc_iocbq
*rspiocbq
)
7580 wait_queue_head_t
*pdone_q
;
7581 unsigned long iflags
;
7582 struct lpfc_scsi_buf
*lpfc_cmd
;
7584 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7585 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
7586 if (cmdiocbq
->context2
&& rspiocbq
)
7587 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
7588 &rspiocbq
->iocb
, sizeof(IOCB_t
));
7590 /* Set the exchange busy flag for task management commands */
7591 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
7592 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
7593 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
7595 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
7598 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
7601 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7606 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7607 * @phba: Pointer to HBA context object..
7608 * @piocbq: Pointer to command iocb.
7609 * @flag: Flag to test.
7611 * This routine grabs the hbalock and then test the iocb_flag to
7612 * see if the passed in flag is set.
7615 * 0 if flag is not set.
7618 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
7619 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
7621 unsigned long iflags
;
7624 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7625 ret
= piocbq
->iocb_flag
& flag
;
7626 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7632 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7633 * @phba: Pointer to HBA context object..
7634 * @pring: Pointer to sli ring.
7635 * @piocb: Pointer to command iocb.
7636 * @prspiocbq: Pointer to response iocb.
7637 * @timeout: Timeout in number of seconds.
7639 * This function issues the iocb to firmware and waits for the
7640 * iocb to complete. If the iocb command is not
7641 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7642 * Caller should not free the iocb resources if this function
7643 * returns IOCB_TIMEDOUT.
7644 * The function waits for the iocb completion using an
7645 * non-interruptible wait.
7646 * This function will sleep while waiting for iocb completion.
7647 * So, this function should not be called from any context which
7648 * does not allow sleeping. Due to the same reason, this function
7649 * cannot be called with interrupt disabled.
7650 * This function assumes that the iocb completions occur while
7651 * this function sleep. So, this function cannot be called from
7652 * the thread which process iocb completion for this ring.
7653 * This function clears the iocb_flag of the iocb object before
7654 * issuing the iocb and the iocb completion handler sets this
7655 * flag and wakes this thread when the iocb completes.
7656 * The contents of the response iocb will be copied to prspiocbq
7657 * by the completion handler when the command completes.
7658 * This function returns IOCB_SUCCESS when success.
7659 * This function is called with no lock held.
7662 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
7663 uint32_t ring_number
,
7664 struct lpfc_iocbq
*piocb
,
7665 struct lpfc_iocbq
*prspiocbq
,
7668 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7669 long timeleft
, timeout_req
= 0;
7670 int retval
= IOCB_SUCCESS
;
7672 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7674 * If the caller has provided a response iocbq buffer, then context2
7675 * is NULL or its an error.
7678 if (piocb
->context2
)
7680 piocb
->context2
= prspiocbq
;
7683 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
7684 piocb
->context_un
.wait_queue
= &done_q
;
7685 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
7687 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7688 creg_val
= readl(phba
->HCregaddr
);
7689 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
7690 writel(creg_val
, phba
->HCregaddr
);
7691 readl(phba
->HCregaddr
); /* flush */
7694 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
7696 if (retval
== IOCB_SUCCESS
) {
7697 timeout_req
= timeout
* HZ
;
7698 timeleft
= wait_event_timeout(done_q
,
7699 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
7702 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
7703 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7704 "0331 IOCB wake signaled\n");
7705 } else if (timeleft
== 0) {
7706 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7707 "0338 IOCB wait timeout error - no "
7708 "wake response Data x%x\n", timeout
);
7709 retval
= IOCB_TIMEDOUT
;
7711 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7712 "0330 IOCB wake NOT set, "
7714 timeout
, (timeleft
/ jiffies
));
7715 retval
= IOCB_TIMEDOUT
;
7717 } else if (retval
== IOCB_BUSY
) {
7718 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7719 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
7720 phba
->iocb_cnt
, pring
->txq_cnt
, pring
->txcmplq_cnt
);
7723 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7724 "0332 IOCB wait issue failed, Data x%x\n",
7726 retval
= IOCB_ERROR
;
7729 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7730 creg_val
= readl(phba
->HCregaddr
);
7731 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
7732 writel(creg_val
, phba
->HCregaddr
);
7733 readl(phba
->HCregaddr
); /* flush */
7737 piocb
->context2
= NULL
;
7739 piocb
->context_un
.wait_queue
= NULL
;
7740 piocb
->iocb_cmpl
= NULL
;
7745 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7746 * @phba: Pointer to HBA context object.
7747 * @pmboxq: Pointer to driver mailbox object.
7748 * @timeout: Timeout in number of seconds.
7750 * This function issues the mailbox to firmware and waits for the
7751 * mailbox command to complete. If the mailbox command is not
7752 * completed within timeout seconds, it returns MBX_TIMEOUT.
7753 * The function waits for the mailbox completion using an
7754 * interruptible wait. If the thread is woken up due to a
7755 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7756 * should not free the mailbox resources, if this function returns
7758 * This function will sleep while waiting for mailbox completion.
7759 * So, this function should not be called from any context which
7760 * does not allow sleeping. Due to the same reason, this function
7761 * cannot be called with interrupt disabled.
7762 * This function assumes that the mailbox completion occurs while
7763 * this function sleep. So, this function cannot be called from
7764 * the worker thread which processes mailbox completion.
7765 * This function is called in the context of HBA management
7767 * This function returns MBX_SUCCESS when successful.
7768 * This function is called with no lock held.
7771 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
7774 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7778 /* The caller must leave context1 empty. */
7779 if (pmboxq
->context1
)
7780 return MBX_NOT_FINISHED
;
7782 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
7783 /* setup wake call as IOCB callback */
7784 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
7785 /* setup context field to pass wait_queue pointer to wake function */
7786 pmboxq
->context1
= &done_q
;
7788 /* now issue the command */
7789 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
7791 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
7792 wait_event_interruptible_timeout(done_q
,
7793 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
7796 spin_lock_irqsave(&phba
->hbalock
, flag
);
7797 pmboxq
->context1
= NULL
;
7799 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7800 * else do not free the resources.
7802 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
7803 retval
= MBX_SUCCESS
;
7804 lpfc_sli4_swap_str(phba
, pmboxq
);
7806 retval
= MBX_TIMEOUT
;
7807 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
7809 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
7816 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7817 * @phba: Pointer to HBA context.
7819 * This function is called to shutdown the driver's mailbox sub-system.
7820 * It first marks the mailbox sub-system is in a block state to prevent
7821 * the asynchronous mailbox command from issued off the pending mailbox
7822 * command queue. If the mailbox command sub-system shutdown is due to
7823 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7824 * the mailbox sub-system flush routine to forcefully bring down the
7825 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7826 * as with offline or HBA function reset), this routine will wait for the
7827 * outstanding mailbox command to complete before invoking the mailbox
7828 * sub-system flush routine to gracefully bring down mailbox sub-system.
7831 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
)
7833 struct lpfc_sli
*psli
= &phba
->sli
;
7834 uint8_t actcmd
= MBX_HEARTBEAT
;
7835 unsigned long timeout
;
7837 spin_lock_irq(&phba
->hbalock
);
7838 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7839 spin_unlock_irq(&phba
->hbalock
);
7841 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7842 spin_lock_irq(&phba
->hbalock
);
7843 if (phba
->sli
.mbox_active
)
7844 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
7845 spin_unlock_irq(&phba
->hbalock
);
7846 /* Determine how long we might wait for the active mailbox
7847 * command to be gracefully completed by firmware.
7849 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) *
7851 while (phba
->sli
.mbox_active
) {
7852 /* Check active mailbox complete status every 2ms */
7854 if (time_after(jiffies
, timeout
))
7855 /* Timeout, let the mailbox flush routine to
7856 * forcefully release active mailbox command
7861 lpfc_sli_mbox_sys_flush(phba
);
7865 * lpfc_sli_eratt_read - read sli-3 error attention events
7866 * @phba: Pointer to HBA context.
7868 * This function is called to read the SLI3 device error attention registers
7869 * for possible error attention events. The caller must hold the hostlock
7870 * with spin_lock_irq().
7872 * This fucntion returns 1 when there is Error Attention in the Host Attention
7873 * Register and returns 0 otherwise.
7876 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
7880 /* Read chip Host Attention (HA) register */
7881 ha_copy
= readl(phba
->HAregaddr
);
7882 if (ha_copy
& HA_ERATT
) {
7883 /* Read host status register to retrieve error event */
7884 lpfc_sli_read_hs(phba
);
7886 /* Check if there is a deferred error condition is active */
7887 if ((HS_FFER1
& phba
->work_hs
) &&
7888 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
7889 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
7890 phba
->hba_flag
|= DEFER_ERATT
;
7891 /* Clear all interrupt enable conditions */
7892 writel(0, phba
->HCregaddr
);
7893 readl(phba
->HCregaddr
);
7896 /* Set the driver HA work bitmap */
7897 phba
->work_ha
|= HA_ERATT
;
7898 /* Indicate polling handles this ERATT */
7899 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7906 * lpfc_sli4_eratt_read - read sli-4 error attention events
7907 * @phba: Pointer to HBA context.
7909 * This function is called to read the SLI4 device error attention registers
7910 * for possible error attention events. The caller must hold the hostlock
7911 * with spin_lock_irq().
7913 * This fucntion returns 1 when there is Error Attention in the Host Attention
7914 * Register and returns 0 otherwise.
7917 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
7919 uint32_t uerr_sta_hi
, uerr_sta_lo
;
7921 /* For now, use the SLI4 device internal unrecoverable error
7922 * registers for error attention. This can be changed later.
7924 uerr_sta_lo
= readl(phba
->sli4_hba
.UERRLOregaddr
);
7925 uerr_sta_hi
= readl(phba
->sli4_hba
.UERRHIregaddr
);
7926 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
7927 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
7928 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7929 "1423 HBA Unrecoverable error: "
7930 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7931 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7932 uerr_sta_lo
, uerr_sta_hi
,
7933 phba
->sli4_hba
.ue_mask_lo
,
7934 phba
->sli4_hba
.ue_mask_hi
);
7935 phba
->work_status
[0] = uerr_sta_lo
;
7936 phba
->work_status
[1] = uerr_sta_hi
;
7937 /* Set the driver HA work bitmap */
7938 phba
->work_ha
|= HA_ERATT
;
7939 /* Indicate polling handles this ERATT */
7940 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7947 * lpfc_sli_check_eratt - check error attention events
7948 * @phba: Pointer to HBA context.
7950 * This function is called from timer soft interrupt context to check HBA's
7951 * error attention register bit for error attention events.
7953 * This fucntion returns 1 when there is Error Attention in the Host Attention
7954 * Register and returns 0 otherwise.
7957 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
7961 /* If somebody is waiting to handle an eratt, don't process it
7962 * here. The brdkill function will do this.
7964 if (phba
->link_flag
& LS_IGNORE_ERATT
)
7967 /* Check if interrupt handler handles this ERATT */
7968 spin_lock_irq(&phba
->hbalock
);
7969 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
7970 /* Interrupt handler has handled ERATT */
7971 spin_unlock_irq(&phba
->hbalock
);
7976 * If there is deferred error attention, do not check for error
7979 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
7980 spin_unlock_irq(&phba
->hbalock
);
7984 /* If PCI channel is offline, don't process it */
7985 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
7986 spin_unlock_irq(&phba
->hbalock
);
7990 switch (phba
->sli_rev
) {
7993 /* Read chip Host Attention (HA) register */
7994 ha_copy
= lpfc_sli_eratt_read(phba
);
7997 /* Read devcie Uncoverable Error (UERR) registers */
7998 ha_copy
= lpfc_sli4_eratt_read(phba
);
8001 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8002 "0299 Invalid SLI revision (%d)\n",
8007 spin_unlock_irq(&phba
->hbalock
);
8013 * lpfc_intr_state_check - Check device state for interrupt handling
8014 * @phba: Pointer to HBA context.
8016 * This inline routine checks whether a device or its PCI slot is in a state
8017 * that the interrupt should be handled.
8019 * This function returns 0 if the device or the PCI slot is in a state that
8020 * interrupt should be handled, otherwise -EIO.
8023 lpfc_intr_state_check(struct lpfc_hba
*phba
)
8025 /* If the pci channel is offline, ignore all the interrupts */
8026 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8029 /* Update device level interrupt statistics */
8030 phba
->sli
.slistat
.sli_intr
++;
8032 /* Ignore all interrupts during initialization. */
8033 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8040 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
8041 * @irq: Interrupt number.
8042 * @dev_id: The device context pointer.
8044 * This function is directly called from the PCI layer as an interrupt
8045 * service routine when device with SLI-3 interface spec is enabled with
8046 * MSI-X multi-message interrupt mode and there are slow-path events in
8047 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8048 * interrupt mode, this function is called as part of the device-level
8049 * interrupt handler. When the PCI slot is in error recovery or the HBA
8050 * is undergoing initialization, the interrupt handler will not process
8051 * the interrupt. The link attention and ELS ring attention events are
8052 * handled by the worker thread. The interrupt handler signals the worker
8053 * thread and returns for these events. This function is called without
8054 * any lock held. It gets the hbalock to access and update SLI data
8057 * This function returns IRQ_HANDLED when interrupt is handled else it
8061 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
8063 struct lpfc_hba
*phba
;
8064 uint32_t ha_copy
, hc_copy
;
8065 uint32_t work_ha_copy
;
8066 unsigned long status
;
8067 unsigned long iflag
;
8070 MAILBOX_t
*mbox
, *pmbox
;
8071 struct lpfc_vport
*vport
;
8072 struct lpfc_nodelist
*ndlp
;
8073 struct lpfc_dmabuf
*mp
;
8078 * Get the driver's phba structure from the dev_id and
8079 * assume the HBA is not interrupting.
8081 phba
= (struct lpfc_hba
*)dev_id
;
8083 if (unlikely(!phba
))
8087 * Stuff needs to be attented to when this function is invoked as an
8088 * individual interrupt handler in MSI-X multi-message interrupt mode
8090 if (phba
->intr_type
== MSIX
) {
8091 /* Check device state for handling interrupt */
8092 if (lpfc_intr_state_check(phba
))
8094 /* Need to read HA REG for slow-path events */
8095 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8096 ha_copy
= readl(phba
->HAregaddr
);
8097 /* If somebody is waiting to handle an eratt don't process it
8098 * here. The brdkill function will do this.
8100 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8101 ha_copy
&= ~HA_ERATT
;
8102 /* Check the need for handling ERATT in interrupt handler */
8103 if (ha_copy
& HA_ERATT
) {
8104 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8105 /* ERATT polling has handled ERATT */
8106 ha_copy
&= ~HA_ERATT
;
8108 /* Indicate interrupt handler handles ERATT */
8109 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8113 * If there is deferred error attention, do not check for any
8116 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8117 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8121 /* Clear up only attention source related to slow-path */
8122 hc_copy
= readl(phba
->HCregaddr
);
8123 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
8124 HC_LAINT_ENA
| HC_ERINT_ENA
),
8126 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
8128 writel(hc_copy
, phba
->HCregaddr
);
8129 readl(phba
->HAregaddr
); /* flush */
8130 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8132 ha_copy
= phba
->ha_copy
;
8134 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
8137 if (work_ha_copy
& HA_LATT
) {
8138 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
8140 * Turn off Link Attention interrupts
8141 * until CLEAR_LA done
8143 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8144 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
8145 control
= readl(phba
->HCregaddr
);
8146 control
&= ~HC_LAINT_ENA
;
8147 writel(control
, phba
->HCregaddr
);
8148 readl(phba
->HCregaddr
); /* flush */
8149 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8152 work_ha_copy
&= ~HA_LATT
;
8155 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
8157 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8158 * the only slow ring.
8160 status
= (work_ha_copy
&
8161 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8162 status
>>= (4*LPFC_ELS_RING
);
8163 if (status
& HA_RXMASK
) {
8164 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8165 control
= readl(phba
->HCregaddr
);
8167 lpfc_debugfs_slow_ring_trc(phba
,
8168 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8170 (uint32_t)phba
->sli
.slistat
.sli_intr
);
8172 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
8173 lpfc_debugfs_slow_ring_trc(phba
,
8175 "pwork:x%x hawork:x%x wait:x%x",
8176 phba
->work_ha
, work_ha_copy
,
8177 (uint32_t)((unsigned long)
8178 &phba
->work_waitq
));
8181 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
8182 writel(control
, phba
->HCregaddr
);
8183 readl(phba
->HCregaddr
); /* flush */
8186 lpfc_debugfs_slow_ring_trc(phba
,
8187 "ISR slow ring: pwork:"
8188 "x%x hawork:x%x wait:x%x",
8189 phba
->work_ha
, work_ha_copy
,
8190 (uint32_t)((unsigned long)
8191 &phba
->work_waitq
));
8193 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8196 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8197 if (work_ha_copy
& HA_ERATT
) {
8198 lpfc_sli_read_hs(phba
);
8200 * Check if there is a deferred error condition
8203 if ((HS_FFER1
& phba
->work_hs
) &&
8204 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8205 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
8207 phba
->hba_flag
|= DEFER_ERATT
;
8208 /* Clear all interrupt enable conditions */
8209 writel(0, phba
->HCregaddr
);
8210 readl(phba
->HCregaddr
);
8214 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
8215 pmb
= phba
->sli
.mbox_active
;
8220 /* First check out the status word */
8221 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
8222 if (pmbox
->mbxOwner
!= OWN_HOST
) {
8223 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8225 * Stray Mailbox Interrupt, mbxCommand <cmd>
8226 * mbxStatus <status>
8228 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8230 "(%d):0304 Stray Mailbox "
8231 "Interrupt mbxCommand x%x "
8233 (vport
? vport
->vpi
: 0),
8236 /* clear mailbox attention bit */
8237 work_ha_copy
&= ~HA_MBATT
;
8239 phba
->sli
.mbox_active
= NULL
;
8240 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8241 phba
->last_completion_time
= jiffies
;
8242 del_timer(&phba
->sli
.mbox_tmo
);
8243 if (pmb
->mbox_cmpl
) {
8244 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
8246 if (pmb
->out_ext_byte_len
&&
8248 lpfc_sli_pcimem_bcopy(
8251 pmb
->out_ext_byte_len
);
8253 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8254 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8256 lpfc_debugfs_disc_trc(vport
,
8257 LPFC_DISC_TRC_MBOX_VPORT
,
8259 "status:x%x rpi:x%x",
8260 (uint32_t)pmbox
->mbxStatus
,
8261 pmbox
->un
.varWords
[0], 0);
8263 if (!pmbox
->mbxStatus
) {
8264 mp
= (struct lpfc_dmabuf
*)
8266 ndlp
= (struct lpfc_nodelist
*)
8269 /* Reg_LOGIN of dflt RPI was
8270 * successful. new lets get
8271 * rid of the RPI using the
8274 lpfc_unreg_login(phba
,
8276 pmbox
->un
.varWords
[0],
8279 lpfc_mbx_cmpl_dflt_rpi
;
8281 pmb
->context2
= ndlp
;
8283 rc
= lpfc_sli_issue_mbox(phba
,
8287 lpfc_printf_log(phba
,
8290 "0350 rc should have"
8292 if (rc
!= MBX_NOT_FINISHED
)
8293 goto send_current_mbox
;
8297 &phba
->pport
->work_port_lock
,
8299 phba
->pport
->work_port_events
&=
8301 spin_unlock_irqrestore(
8302 &phba
->pport
->work_port_lock
,
8304 lpfc_mbox_cmpl_put(phba
, pmb
);
8307 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8309 if ((work_ha_copy
& HA_MBATT
) &&
8310 (phba
->sli
.mbox_active
== NULL
)) {
8312 /* Process next mailbox command if there is one */
8314 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
8316 } while (rc
== MBX_NOT_FINISHED
);
8317 if (rc
!= MBX_SUCCESS
)
8318 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8319 LOG_SLI
, "0349 rc should be "
8323 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8324 phba
->work_ha
|= work_ha_copy
;
8325 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8326 lpfc_worker_wake_up(phba
);
8330 } /* lpfc_sli_sp_intr_handler */
8333 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8334 * @irq: Interrupt number.
8335 * @dev_id: The device context pointer.
8337 * This function is directly called from the PCI layer as an interrupt
8338 * service routine when device with SLI-3 interface spec is enabled with
8339 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8340 * ring event in the HBA. However, when the device is enabled with either
8341 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8342 * device-level interrupt handler. When the PCI slot is in error recovery
8343 * or the HBA is undergoing initialization, the interrupt handler will not
8344 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8345 * the intrrupt context. This function is called without any lock held.
8346 * It gets the hbalock to access and update SLI data structures.
8348 * This function returns IRQ_HANDLED when interrupt is handled else it
8352 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
8354 struct lpfc_hba
*phba
;
8356 unsigned long status
;
8357 unsigned long iflag
;
8359 /* Get the driver's phba structure from the dev_id and
8360 * assume the HBA is not interrupting.
8362 phba
= (struct lpfc_hba
*) dev_id
;
8364 if (unlikely(!phba
))
8368 * Stuff needs to be attented to when this function is invoked as an
8369 * individual interrupt handler in MSI-X multi-message interrupt mode
8371 if (phba
->intr_type
== MSIX
) {
8372 /* Check device state for handling interrupt */
8373 if (lpfc_intr_state_check(phba
))
8375 /* Need to read HA REG for FCP ring and other ring events */
8376 ha_copy
= readl(phba
->HAregaddr
);
8377 /* Clear up only attention source related to fast-path */
8378 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8380 * If there is deferred error attention, do not check for
8383 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8384 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8387 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
8389 readl(phba
->HAregaddr
); /* flush */
8390 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8392 ha_copy
= phba
->ha_copy
;
8395 * Process all events on FCP ring. Take the optimized path for FCP IO.
8397 ha_copy
&= ~(phba
->work_ha_mask
);
8399 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8400 status
>>= (4*LPFC_FCP_RING
);
8401 if (status
& HA_RXMASK
)
8402 lpfc_sli_handle_fast_ring_event(phba
,
8403 &phba
->sli
.ring
[LPFC_FCP_RING
],
8406 if (phba
->cfg_multi_ring_support
== 2) {
8408 * Process all events on extra ring. Take the optimized path
8409 * for extra ring IO.
8411 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8412 status
>>= (4*LPFC_EXTRA_RING
);
8413 if (status
& HA_RXMASK
) {
8414 lpfc_sli_handle_fast_ring_event(phba
,
8415 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
8420 } /* lpfc_sli_fp_intr_handler */
8423 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8424 * @irq: Interrupt number.
8425 * @dev_id: The device context pointer.
8427 * This function is the HBA device-level interrupt handler to device with
8428 * SLI-3 interface spec, called from the PCI layer when either MSI or
8429 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8430 * requires driver attention. This function invokes the slow-path interrupt
8431 * attention handling function and fast-path interrupt attention handling
8432 * function in turn to process the relevant HBA attention events. This
8433 * function is called without any lock held. It gets the hbalock to access
8434 * and update SLI data structures.
8436 * This function returns IRQ_HANDLED when interrupt is handled, else it
8440 lpfc_sli_intr_handler(int irq
, void *dev_id
)
8442 struct lpfc_hba
*phba
;
8443 irqreturn_t sp_irq_rc
, fp_irq_rc
;
8444 unsigned long status1
, status2
;
8448 * Get the driver's phba structure from the dev_id and
8449 * assume the HBA is not interrupting.
8451 phba
= (struct lpfc_hba
*) dev_id
;
8453 if (unlikely(!phba
))
8456 /* Check device state for handling interrupt */
8457 if (lpfc_intr_state_check(phba
))
8460 spin_lock(&phba
->hbalock
);
8461 phba
->ha_copy
= readl(phba
->HAregaddr
);
8462 if (unlikely(!phba
->ha_copy
)) {
8463 spin_unlock(&phba
->hbalock
);
8465 } else if (phba
->ha_copy
& HA_ERATT
) {
8466 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8467 /* ERATT polling has handled ERATT */
8468 phba
->ha_copy
&= ~HA_ERATT
;
8470 /* Indicate interrupt handler handles ERATT */
8471 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8475 * If there is deferred error attention, do not check for any interrupt.
8477 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8478 spin_unlock(&phba
->hbalock
);
8482 /* Clear attention sources except link and error attentions */
8483 hc_copy
= readl(phba
->HCregaddr
);
8484 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
8485 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
8487 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
8488 writel(hc_copy
, phba
->HCregaddr
);
8489 readl(phba
->HAregaddr
); /* flush */
8490 spin_unlock(&phba
->hbalock
);
8493 * Invokes slow-path host attention interrupt handling as appropriate.
8496 /* status of events with mailbox and link attention */
8497 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
8499 /* status of events with ELS ring */
8500 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8501 status2
>>= (4*LPFC_ELS_RING
);
8503 if (status1
|| (status2
& HA_RXMASK
))
8504 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
8506 sp_irq_rc
= IRQ_NONE
;
8509 * Invoke fast-path host attention interrupt handling as appropriate.
8512 /* status of events with FCP ring */
8513 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8514 status1
>>= (4*LPFC_FCP_RING
);
8516 /* status of events with extra ring */
8517 if (phba
->cfg_multi_ring_support
== 2) {
8518 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8519 status2
>>= (4*LPFC_EXTRA_RING
);
8523 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
8524 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
8526 fp_irq_rc
= IRQ_NONE
;
8528 /* Return device-level interrupt handling status */
8529 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
8530 } /* lpfc_sli_intr_handler */
8533 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8534 * @phba: pointer to lpfc hba data structure.
8536 * This routine is invoked by the worker thread to process all the pending
8537 * SLI4 FCP abort XRI events.
8539 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
8541 struct lpfc_cq_event
*cq_event
;
8543 /* First, declare the fcp xri abort event has been handled */
8544 spin_lock_irq(&phba
->hbalock
);
8545 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
8546 spin_unlock_irq(&phba
->hbalock
);
8547 /* Now, handle all the fcp xri abort events */
8548 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
8549 /* Get the first event from the head of the event queue */
8550 spin_lock_irq(&phba
->hbalock
);
8551 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
8552 cq_event
, struct lpfc_cq_event
, list
);
8553 spin_unlock_irq(&phba
->hbalock
);
8554 /* Notify aborted XRI for FCP work queue */
8555 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8556 /* Free the event processed back to the free pool */
8557 lpfc_sli4_cq_event_release(phba
, cq_event
);
8562 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8563 * @phba: pointer to lpfc hba data structure.
8565 * This routine is invoked by the worker thread to process all the pending
8566 * SLI4 els abort xri events.
8568 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
8570 struct lpfc_cq_event
*cq_event
;
8572 /* First, declare the els xri abort event has been handled */
8573 spin_lock_irq(&phba
->hbalock
);
8574 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
8575 spin_unlock_irq(&phba
->hbalock
);
8576 /* Now, handle all the els xri abort events */
8577 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
8578 /* Get the first event from the head of the event queue */
8579 spin_lock_irq(&phba
->hbalock
);
8580 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
8581 cq_event
, struct lpfc_cq_event
, list
);
8582 spin_unlock_irq(&phba
->hbalock
);
8583 /* Notify aborted XRI for ELS work queue */
8584 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8585 /* Free the event processed back to the free pool */
8586 lpfc_sli4_cq_event_release(phba
, cq_event
);
8591 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8592 * @phba: pointer to lpfc hba data structure
8593 * @pIocbIn: pointer to the rspiocbq
8594 * @pIocbOut: pointer to the cmdiocbq
8595 * @wcqe: pointer to the complete wcqe
8597 * This routine transfers the fields of a command iocbq to a response iocbq
8598 * by copying all the IOCB fields from command iocbq and transferring the
8599 * completion status information from the complete wcqe.
8602 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
8603 struct lpfc_iocbq
*pIocbIn
,
8604 struct lpfc_iocbq
*pIocbOut
,
8605 struct lpfc_wcqe_complete
*wcqe
)
8607 unsigned long iflags
;
8608 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
8610 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
8611 sizeof(struct lpfc_iocbq
) - offset
);
8612 /* Map WCQE parameters into irspiocb parameters */
8613 pIocbIn
->iocb
.ulpStatus
= bf_get(lpfc_wcqe_c_status
, wcqe
);
8614 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
8615 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
8616 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
8617 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
8618 wcqe
->total_data_placed
;
8620 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8622 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8623 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
8626 /* Pick up HBA exchange busy condition */
8627 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
8628 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8629 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
8630 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8635 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8636 * @phba: Pointer to HBA context object.
8637 * @wcqe: Pointer to work-queue completion queue entry.
8639 * This routine handles an ELS work-queue completion event and construct
8640 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8641 * discovery engine to handle.
8643 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8645 static struct lpfc_iocbq
*
8646 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
8647 struct lpfc_iocbq
*irspiocbq
)
8649 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8650 struct lpfc_iocbq
*cmdiocbq
;
8651 struct lpfc_wcqe_complete
*wcqe
;
8652 unsigned long iflags
;
8654 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
8655 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8656 pring
->stats
.iocb_event
++;
8657 /* Look up the ELS command IOCB and create pseudo response IOCB */
8658 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
8659 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8660 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8662 if (unlikely(!cmdiocbq
)) {
8663 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8664 "0386 ELS complete with no corresponding "
8665 "cmdiocb: iotag (%d)\n",
8666 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8667 lpfc_sli_release_iocbq(phba
, irspiocbq
);
8671 /* Fake the irspiocbq and copy necessary response information */
8672 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
8678 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8679 * @phba: Pointer to HBA context object.
8680 * @cqe: Pointer to mailbox completion queue entry.
8682 * This routine process a mailbox completion queue entry with asynchrous
8685 * Return: true if work posted to worker thread, otherwise false.
8688 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8690 struct lpfc_cq_event
*cq_event
;
8691 unsigned long iflags
;
8693 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8694 "0392 Async Event: word0:x%x, word1:x%x, "
8695 "word2:x%x, word3:x%x\n", mcqe
->word0
,
8696 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
8698 /* Allocate a new internal CQ_EVENT entry */
8699 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8701 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8702 "0394 Failed to allocate CQ_EVENT entry\n");
8706 /* Move the CQE into an asynchronous event entry */
8707 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
8708 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8709 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
8710 /* Set the async event flag */
8711 phba
->hba_flag
|= ASYNC_EVENT
;
8712 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8718 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8719 * @phba: Pointer to HBA context object.
8720 * @cqe: Pointer to mailbox completion queue entry.
8722 * This routine process a mailbox completion queue entry with mailbox
8725 * Return: true if work posted to worker thread, otherwise false.
8728 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8730 uint32_t mcqe_status
;
8731 MAILBOX_t
*mbox
, *pmbox
;
8732 struct lpfc_mqe
*mqe
;
8733 struct lpfc_vport
*vport
;
8734 struct lpfc_nodelist
*ndlp
;
8735 struct lpfc_dmabuf
*mp
;
8736 unsigned long iflags
;
8738 bool workposted
= false;
8741 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8742 if (!bf_get(lpfc_trailer_completed
, mcqe
))
8743 goto out_no_mqe_complete
;
8745 /* Get the reference to the active mbox command */
8746 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8747 pmb
= phba
->sli
.mbox_active
;
8748 if (unlikely(!pmb
)) {
8749 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
8750 "1832 No pending MBOX command to handle\n");
8751 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8752 goto out_no_mqe_complete
;
8754 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8756 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
8760 /* Reset heartbeat timer */
8761 phba
->last_completion_time
= jiffies
;
8762 del_timer(&phba
->sli
.mbox_tmo
);
8764 /* Move mbox data to caller's mailbox region, do endian swapping */
8765 if (pmb
->mbox_cmpl
&& mbox
)
8766 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
8767 /* Set the mailbox status with SLI4 range 0x4000 */
8768 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
8769 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
)
8770 bf_set(lpfc_mqe_status
, mqe
,
8771 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
8773 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8774 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8775 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
8776 "MBOX dflt rpi: status:x%x rpi:x%x",
8778 pmbox
->un
.varWords
[0], 0);
8779 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
8780 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
8781 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
8782 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8783 * RID of the PPI using the same mbox buffer.
8785 lpfc_unreg_login(phba
, vport
->vpi
,
8786 pmbox
->un
.varWords
[0], pmb
);
8787 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
8789 pmb
->context2
= ndlp
;
8791 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
8793 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8794 LOG_SLI
, "0385 rc should "
8795 "have been MBX_BUSY\n");
8796 if (rc
!= MBX_NOT_FINISHED
)
8797 goto send_current_mbox
;
8800 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8801 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
8802 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8804 /* There is mailbox completion work to do */
8805 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8806 __lpfc_mbox_cmpl_put(phba
, pmb
);
8807 phba
->work_ha
|= HA_MBATT
;
8808 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8812 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8813 /* Release the mailbox command posting token */
8814 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
8815 /* Setting active mailbox pointer need to be in sync to flag clear */
8816 phba
->sli
.mbox_active
= NULL
;
8817 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8818 /* Wake up worker thread to post the next pending mailbox command */
8819 lpfc_worker_wake_up(phba
);
8820 out_no_mqe_complete
:
8821 if (bf_get(lpfc_trailer_consumed
, mcqe
))
8822 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
8827 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8828 * @phba: Pointer to HBA context object.
8829 * @cqe: Pointer to mailbox completion queue entry.
8831 * This routine process a mailbox completion queue entry, it invokes the
8832 * proper mailbox complete handling or asynchrous event handling routine
8833 * according to the MCQE's async bit.
8835 * Return: true if work posted to worker thread, otherwise false.
8838 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
8840 struct lpfc_mcqe mcqe
;
8843 /* Copy the mailbox MCQE and convert endian order as needed */
8844 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
8846 /* Invoke the proper event handling routine */
8847 if (!bf_get(lpfc_trailer_async
, &mcqe
))
8848 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
8850 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
8855 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8856 * @phba: Pointer to HBA context object.
8857 * @wcqe: Pointer to work-queue completion queue entry.
8859 * This routine handles an ELS work-queue completion event.
8861 * Return: true if work posted to worker thread, otherwise false.
8864 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
,
8865 struct lpfc_wcqe_complete
*wcqe
)
8867 struct lpfc_iocbq
*irspiocbq
;
8868 unsigned long iflags
;
8869 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
8871 /* Get an irspiocbq for later ELS response processing use */
8872 irspiocbq
= lpfc_sli_get_iocbq(phba
);
8874 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8875 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
8876 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
8877 pring
->txq_cnt
, phba
->iocb_cnt
,
8878 phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq_cnt
,
8879 phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
);
8883 /* Save off the slow-path queue event for work thread to process */
8884 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
8885 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8886 list_add_tail(&irspiocbq
->cq_event
.list
,
8887 &phba
->sli4_hba
.sp_queue_event
);
8888 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
8889 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8895 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8896 * @phba: Pointer to HBA context object.
8897 * @wcqe: Pointer to work-queue completion queue entry.
8899 * This routine handles slow-path WQ entry comsumed event by invoking the
8900 * proper WQ release routine to the slow-path WQ.
8903 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
8904 struct lpfc_wcqe_release
*wcqe
)
8906 /* Check for the slow-path ELS work queue */
8907 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
8908 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
8909 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
8911 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8912 "2579 Slow-path wqe consume event carries "
8913 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8914 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
8915 phba
->sli4_hba
.els_wq
->queue_id
);
8919 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8920 * @phba: Pointer to HBA context object.
8921 * @cq: Pointer to a WQ completion queue.
8922 * @wcqe: Pointer to work-queue completion queue entry.
8924 * This routine handles an XRI abort event.
8926 * Return: true if work posted to worker thread, otherwise false.
8929 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
8930 struct lpfc_queue
*cq
,
8931 struct sli4_wcqe_xri_aborted
*wcqe
)
8933 bool workposted
= false;
8934 struct lpfc_cq_event
*cq_event
;
8935 unsigned long iflags
;
8937 /* Allocate a new internal CQ_EVENT entry */
8938 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8940 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8941 "0602 Failed to allocate CQ_EVENT entry\n");
8945 /* Move the CQE into the proper xri abort event list */
8946 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
8947 switch (cq
->subtype
) {
8949 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8950 list_add_tail(&cq_event
->list
,
8951 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
8952 /* Set the fcp xri abort event flag */
8953 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
8954 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8958 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8959 list_add_tail(&cq_event
->list
,
8960 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
8961 /* Set the els xri abort event flag */
8962 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
8963 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8967 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8968 "0603 Invalid work queue CQE subtype (x%x)\n",
8977 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8978 * @phba: Pointer to HBA context object.
8979 * @rcqe: Pointer to receive-queue completion queue entry.
8981 * This routine process a receive-queue completion queue entry.
8983 * Return: true if work posted to worker thread, otherwise false.
8986 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
8988 bool workposted
= false;
8989 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
8990 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
8991 struct hbq_dmabuf
*dma_buf
;
8993 unsigned long iflags
;
8995 if (bf_get(lpfc_rcqe_rq_id
, rcqe
) != hrq
->queue_id
)
8998 status
= bf_get(lpfc_rcqe_status
, rcqe
);
9000 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
9001 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9002 "2537 Receive Frame Truncated!!\n");
9003 case FC_STATUS_RQ_SUCCESS
:
9004 lpfc_sli4_rq_release(hrq
, drq
);
9005 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9006 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
9008 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9011 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
9012 /* save off the frame for the word thread to process */
9013 list_add_tail(&dma_buf
->cq_event
.list
,
9014 &phba
->sli4_hba
.sp_queue_event
);
9015 /* Frame received */
9016 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9017 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9020 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
9021 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
9022 /* Post more buffers if possible */
9023 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9024 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
9025 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9034 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9035 * @phba: Pointer to HBA context object.
9036 * @cq: Pointer to the completion queue.
9037 * @wcqe: Pointer to a completion queue entry.
9039 * This routine process a slow-path work-queue or recieve queue completion queue
9042 * Return: true if work posted to worker thread, otherwise false.
9045 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9046 struct lpfc_cqe
*cqe
)
9048 struct lpfc_cqe cqevt
;
9049 bool workposted
= false;
9051 /* Copy the work queue CQE and convert endian order if needed */
9052 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
9054 /* Check and process for different type of WCQE and dispatch */
9055 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
9056 case CQE_CODE_COMPL_WQE
:
9057 /* Process the WQ/RQ complete event */
9058 phba
->last_completion_time
= jiffies
;
9059 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
,
9060 (struct lpfc_wcqe_complete
*)&cqevt
);
9062 case CQE_CODE_RELEASE_WQE
:
9063 /* Process the WQ release event */
9064 lpfc_sli4_sp_handle_rel_wcqe(phba
,
9065 (struct lpfc_wcqe_release
*)&cqevt
);
9067 case CQE_CODE_XRI_ABORTED
:
9068 /* Process the WQ XRI abort event */
9069 phba
->last_completion_time
= jiffies
;
9070 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9071 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
9073 case CQE_CODE_RECEIVE
:
9074 /* Process the RQ event */
9075 phba
->last_completion_time
= jiffies
;
9076 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
9077 (struct lpfc_rcqe
*)&cqevt
);
9080 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9081 "0388 Not a valid WCQE code: x%x\n",
9082 bf_get(lpfc_cqe_code
, &cqevt
));
9089 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9090 * @phba: Pointer to HBA context object.
9091 * @eqe: Pointer to fast-path event queue entry.
9093 * This routine process a event queue entry from the slow-path event queue.
9094 * It will check the MajorCode and MinorCode to determine this is for a
9095 * completion event on a completion queue, if not, an error shall be logged
9096 * and just return. Otherwise, it will get to the corresponding completion
9097 * queue and process all the entries on that completion queue, rearm the
9098 * completion queue, and then return.
9102 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
9104 struct lpfc_queue
*cq
= NULL
, *childq
, *speq
;
9105 struct lpfc_cqe
*cqe
;
9106 bool workposted
= false;
9110 if (bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0) {
9111 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9112 "0359 Not a valid slow-path completion "
9113 "event: majorcode=x%x, minorcode=x%x\n",
9114 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9115 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9119 /* Get the reference to the corresponding CQ */
9120 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9122 /* Search for completion queue pointer matching this cqid */
9123 speq
= phba
->sli4_hba
.sp_eq
;
9124 list_for_each_entry(childq
, &speq
->child_list
, list
) {
9125 if (childq
->queue_id
== cqid
) {
9130 if (unlikely(!cq
)) {
9131 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9132 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9133 "0365 Slow-path CQ identifier "
9134 "(%d) does not exist\n", cqid
);
9138 /* Process all the entries to the CQ */
9141 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9142 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
9143 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9144 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9148 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9149 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
, cqe
);
9150 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9151 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9155 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9156 "0370 Invalid completion queue type (%d)\n",
9161 /* Catch the no cq entry condition, log an error */
9162 if (unlikely(ecount
== 0))
9163 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9164 "0371 No entry from the CQ: identifier "
9165 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
9167 /* In any case, flash and re-arm the RCQ */
9168 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9170 /* wake up worker thread if there are works to be done */
9172 lpfc_worker_wake_up(phba
);
9176 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9177 * @eqe: Pointer to fast-path completion queue entry.
9179 * This routine process a fast-path work queue completion entry from fast-path
9180 * event queue for FCP command response completion.
9183 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
,
9184 struct lpfc_wcqe_complete
*wcqe
)
9186 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9187 struct lpfc_iocbq
*cmdiocbq
;
9188 struct lpfc_iocbq irspiocbq
;
9189 unsigned long iflags
;
9191 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9192 pring
->stats
.iocb_event
++;
9193 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9195 /* Check for response status */
9196 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
9197 /* If resource errors reported from HBA, reduce queue
9198 * depth of the SCSI device.
9200 if ((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
9201 IOSTAT_LOCAL_REJECT
) &&
9202 (wcqe
->parameter
== IOERR_NO_RESOURCES
)) {
9203 phba
->lpfc_rampdown_queue_depth(phba
);
9205 /* Log the error status */
9206 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9207 "0373 FCP complete error: status=x%x, "
9208 "hw_status=x%x, total_data_specified=%d, "
9209 "parameter=x%x, word3=x%x\n",
9210 bf_get(lpfc_wcqe_c_status
, wcqe
),
9211 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
9212 wcqe
->total_data_placed
, wcqe
->parameter
,
9216 /* Look up the FCP command IOCB and create pseudo response IOCB */
9217 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9218 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9219 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9220 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9221 if (unlikely(!cmdiocbq
)) {
9222 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9223 "0374 FCP complete with no corresponding "
9224 "cmdiocb: iotag (%d)\n",
9225 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9228 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
9229 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9230 "0375 FCP cmdiocb not callback function "
9232 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9236 /* Fake the irspiocb and copy necessary response information */
9237 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
9239 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
9240 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9241 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
9242 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9245 /* Pass the cmd_iocb and the rsp state to the upper layer */
9246 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
9250 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9251 * @phba: Pointer to HBA context object.
9252 * @cq: Pointer to completion queue.
9253 * @wcqe: Pointer to work-queue completion queue entry.
9255 * This routine handles an fast-path WQ entry comsumed event by invoking the
9256 * proper WQ release routine to the slow-path WQ.
9259 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9260 struct lpfc_wcqe_release
*wcqe
)
9262 struct lpfc_queue
*childwq
;
9263 bool wqid_matched
= false;
9266 /* Check for fast-path FCP work queue release */
9267 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
9268 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
9269 if (childwq
->queue_id
== fcp_wqid
) {
9270 lpfc_sli4_wq_release(childwq
,
9271 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9272 wqid_matched
= true;
9276 /* Report warning log message if no match found */
9277 if (wqid_matched
!= true)
9278 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9279 "2580 Fast-path wqe consume event carries "
9280 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
9284 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9285 * @cq: Pointer to the completion queue.
9286 * @eqe: Pointer to fast-path completion queue entry.
9288 * This routine process a fast-path work queue completion entry from fast-path
9289 * event queue for FCP command response completion.
9292 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9293 struct lpfc_cqe
*cqe
)
9295 struct lpfc_wcqe_release wcqe
;
9296 bool workposted
= false;
9298 /* Copy the work queue CQE and convert endian order if needed */
9299 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
9301 /* Check and process for different type of WCQE and dispatch */
9302 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
9303 case CQE_CODE_COMPL_WQE
:
9304 /* Process the WQ complete event */
9305 phba
->last_completion_time
= jiffies
;
9306 lpfc_sli4_fp_handle_fcp_wcqe(phba
,
9307 (struct lpfc_wcqe_complete
*)&wcqe
);
9309 case CQE_CODE_RELEASE_WQE
:
9310 /* Process the WQ release event */
9311 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
9312 (struct lpfc_wcqe_release
*)&wcqe
);
9314 case CQE_CODE_XRI_ABORTED
:
9315 /* Process the WQ XRI abort event */
9316 phba
->last_completion_time
= jiffies
;
9317 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9318 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
9321 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9322 "0144 Not a valid WCQE code: x%x\n",
9323 bf_get(lpfc_wcqe_c_code
, &wcqe
));
9330 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9331 * @phba: Pointer to HBA context object.
9332 * @eqe: Pointer to fast-path event queue entry.
9334 * This routine process a event queue entry from the fast-path event queue.
9335 * It will check the MajorCode and MinorCode to determine this is for a
9336 * completion event on a completion queue, if not, an error shall be logged
9337 * and just return. Otherwise, it will get to the corresponding completion
9338 * queue and process all the entries on the completion queue, rearm the
9339 * completion queue, and then return.
9342 lpfc_sli4_fp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
9345 struct lpfc_queue
*cq
;
9346 struct lpfc_cqe
*cqe
;
9347 bool workposted
= false;
9351 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
9352 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9353 "0366 Not a valid fast-path completion "
9354 "event: majorcode=x%x, minorcode=x%x\n",
9355 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9356 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9360 cq
= phba
->sli4_hba
.fcp_cq
[fcp_cqidx
];
9361 if (unlikely(!cq
)) {
9362 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9363 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9364 "0367 Fast-path completion queue "
9365 "does not exist\n");
9369 /* Get the reference to the corresponding CQ */
9370 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9371 if (unlikely(cqid
!= cq
->queue_id
)) {
9372 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9373 "0368 Miss-matched fast-path completion "
9374 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9375 cqid
, cq
->queue_id
);
9379 /* Process all the entries to the CQ */
9380 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9381 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
9382 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9383 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9386 /* Catch the no cq entry condition */
9387 if (unlikely(ecount
== 0))
9388 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9389 "0369 No entry from fast-path completion "
9390 "queue fcpcqid=%d\n", cq
->queue_id
);
9392 /* In any case, flash and re-arm the CQ */
9393 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9395 /* wake up worker thread if there are works to be done */
9397 lpfc_worker_wake_up(phba
);
9401 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
9403 struct lpfc_eqe
*eqe
;
9405 /* walk all the EQ entries and drop on the floor */
9406 while ((eqe
= lpfc_sli4_eq_get(eq
)))
9409 /* Clear and re-arm the EQ */
9410 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
9414 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9415 * @irq: Interrupt number.
9416 * @dev_id: The device context pointer.
9418 * This function is directly called from the PCI layer as an interrupt
9419 * service routine when device with SLI-4 interface spec is enabled with
9420 * MSI-X multi-message interrupt mode and there are slow-path events in
9421 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9422 * interrupt mode, this function is called as part of the device-level
9423 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9424 * undergoing initialization, the interrupt handler will not process the
9425 * interrupt. The link attention and ELS ring attention events are handled
9426 * by the worker thread. The interrupt handler signals the worker thread
9427 * and returns for these events. This function is called without any lock
9428 * held. It gets the hbalock to access and update SLI data structures.
9430 * This function returns IRQ_HANDLED when interrupt is handled else it
9434 lpfc_sli4_sp_intr_handler(int irq
, void *dev_id
)
9436 struct lpfc_hba
*phba
;
9437 struct lpfc_queue
*speq
;
9438 struct lpfc_eqe
*eqe
;
9439 unsigned long iflag
;
9443 * Get the driver's phba structure from the dev_id
9445 phba
= (struct lpfc_hba
*)dev_id
;
9447 if (unlikely(!phba
))
9450 /* Get to the EQ struct associated with this vector */
9451 speq
= phba
->sli4_hba
.sp_eq
;
9453 /* Check device state for handling interrupt */
9454 if (unlikely(lpfc_intr_state_check(phba
))) {
9455 /* Check again for link_state with lock held */
9456 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9457 if (phba
->link_state
< LPFC_LINK_DOWN
)
9458 /* Flush, clear interrupt, and rearm the EQ */
9459 lpfc_sli4_eq_flush(phba
, speq
);
9460 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9465 * Process all the event on FCP slow-path EQ
9467 while ((eqe
= lpfc_sli4_eq_get(speq
))) {
9468 lpfc_sli4_sp_handle_eqe(phba
, eqe
);
9469 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9470 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_NOARM
);
9473 /* Always clear and re-arm the slow-path EQ */
9474 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_REARM
);
9476 /* Catch the no cq entry condition */
9477 if (unlikely(ecount
== 0)) {
9478 if (phba
->intr_type
== MSIX
)
9479 /* MSI-X treated interrupt served as no EQ share INT */
9480 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9481 "0357 MSI-X interrupt with no EQE\n");
9483 /* Non MSI-X treated on interrupt as EQ share INT */
9488 } /* lpfc_sli4_sp_intr_handler */
9491 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9492 * @irq: Interrupt number.
9493 * @dev_id: The device context pointer.
9495 * This function is directly called from the PCI layer as an interrupt
9496 * service routine when device with SLI-4 interface spec is enabled with
9497 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9498 * ring event in the HBA. However, when the device is enabled with either
9499 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9500 * device-level interrupt handler. When the PCI slot is in error recovery
9501 * or the HBA is undergoing initialization, the interrupt handler will not
9502 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9503 * the intrrupt context. This function is called without any lock held.
9504 * It gets the hbalock to access and update SLI data structures. Note that,
9505 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9506 * equal to that of FCP CQ index.
9508 * This function returns IRQ_HANDLED when interrupt is handled else it
9512 lpfc_sli4_fp_intr_handler(int irq
, void *dev_id
)
9514 struct lpfc_hba
*phba
;
9515 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
9516 struct lpfc_queue
*fpeq
;
9517 struct lpfc_eqe
*eqe
;
9518 unsigned long iflag
;
9522 /* Get the driver's phba structure from the dev_id */
9523 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
9524 phba
= fcp_eq_hdl
->phba
;
9525 fcp_eqidx
= fcp_eq_hdl
->idx
;
9527 if (unlikely(!phba
))
9530 /* Get to the EQ struct associated with this vector */
9531 fpeq
= phba
->sli4_hba
.fp_eq
[fcp_eqidx
];
9533 /* Check device state for handling interrupt */
9534 if (unlikely(lpfc_intr_state_check(phba
))) {
9535 /* Check again for link_state with lock held */
9536 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9537 if (phba
->link_state
< LPFC_LINK_DOWN
)
9538 /* Flush, clear interrupt, and rearm the EQ */
9539 lpfc_sli4_eq_flush(phba
, fpeq
);
9540 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9545 * Process all the event on FCP fast-path EQ
9547 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
9548 lpfc_sli4_fp_handle_eqe(phba
, eqe
, fcp_eqidx
);
9549 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9550 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
9553 /* Always clear and re-arm the fast-path EQ */
9554 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
9556 if (unlikely(ecount
== 0)) {
9557 if (phba
->intr_type
== MSIX
)
9558 /* MSI-X treated interrupt served as no EQ share INT */
9559 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9560 "0358 MSI-X interrupt with no EQE\n");
9562 /* Non MSI-X treated on interrupt as EQ share INT */
9567 } /* lpfc_sli4_fp_intr_handler */
9570 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9571 * @irq: Interrupt number.
9572 * @dev_id: The device context pointer.
9574 * This function is the device-level interrupt handler to device with SLI-4
9575 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9576 * interrupt mode is enabled and there is an event in the HBA which requires
9577 * driver attention. This function invokes the slow-path interrupt attention
9578 * handling function and fast-path interrupt attention handling function in
9579 * turn to process the relevant HBA attention events. This function is called
9580 * without any lock held. It gets the hbalock to access and update SLI data
9583 * This function returns IRQ_HANDLED when interrupt is handled, else it
9587 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
9589 struct lpfc_hba
*phba
;
9590 irqreturn_t sp_irq_rc
, fp_irq_rc
;
9591 bool fp_handled
= false;
9594 /* Get the driver's phba structure from the dev_id */
9595 phba
= (struct lpfc_hba
*)dev_id
;
9597 if (unlikely(!phba
))
9601 * Invokes slow-path host attention interrupt handling as appropriate.
9603 sp_irq_rc
= lpfc_sli4_sp_intr_handler(irq
, dev_id
);
9606 * Invoke fast-path host attention interrupt handling as appropriate.
9608 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
9609 fp_irq_rc
= lpfc_sli4_fp_intr_handler(irq
,
9610 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
9611 if (fp_irq_rc
== IRQ_HANDLED
)
9615 return (fp_handled
== true) ? IRQ_HANDLED
: sp_irq_rc
;
9616 } /* lpfc_sli4_intr_handler */
9619 * lpfc_sli4_queue_free - free a queue structure and associated memory
9620 * @queue: The queue structure to free.
9622 * This function frees a queue structure and the DMAable memeory used for
9623 * the host resident queue. This function must be called after destroying the
9627 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
9629 struct lpfc_dmabuf
*dmabuf
;
9634 while (!list_empty(&queue
->page_list
)) {
9635 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
9637 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
9638 dmabuf
->virt
, dmabuf
->phys
);
9646 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9647 * @phba: The HBA that this queue is being created on.
9648 * @entry_size: The size of each queue entry for this queue.
9649 * @entry count: The number of entries that this queue will handle.
9651 * This function allocates a queue structure and the DMAable memory used for
9652 * the host resident queue. This function must be called before creating the
9656 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
9657 uint32_t entry_count
)
9659 struct lpfc_queue
*queue
;
9660 struct lpfc_dmabuf
*dmabuf
;
9661 int x
, total_qe_count
;
9663 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9665 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9666 hw_page_size
= SLI4_PAGE_SIZE
;
9668 queue
= kzalloc(sizeof(struct lpfc_queue
) +
9669 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
9672 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
9673 hw_page_size
))/hw_page_size
;
9674 INIT_LIST_HEAD(&queue
->list
);
9675 INIT_LIST_HEAD(&queue
->page_list
);
9676 INIT_LIST_HEAD(&queue
->child_list
);
9677 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
9678 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
9681 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
9682 hw_page_size
, &dmabuf
->phys
,
9684 if (!dmabuf
->virt
) {
9688 memset(dmabuf
->virt
, 0, hw_page_size
);
9689 dmabuf
->buffer_tag
= x
;
9690 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
9691 /* initialize queue's entry array */
9692 dma_pointer
= dmabuf
->virt
;
9693 for (; total_qe_count
< entry_count
&&
9694 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
9695 total_qe_count
++, dma_pointer
+= entry_size
) {
9696 queue
->qe
[total_qe_count
].address
= dma_pointer
;
9699 queue
->entry_size
= entry_size
;
9700 queue
->entry_count
= entry_count
;
9705 lpfc_sli4_queue_free(queue
);
9710 * lpfc_eq_create - Create an Event Queue on the HBA
9711 * @phba: HBA structure that indicates port to create a queue on.
9712 * @eq: The queue structure to use to create the event queue.
9713 * @imax: The maximum interrupt per second limit.
9715 * This function creates an event queue, as detailed in @eq, on a port,
9716 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9718 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9719 * is used to get the entry count and entry size that are necessary to
9720 * determine the number of pages to allocate and use for this queue. This
9721 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9722 * event queue. This function is asynchronous and will wait for the mailbox
9723 * command to finish before continuing.
9725 * On success this function will return a zero. If unable to allocate enough
9726 * memory this function will return -ENOMEM. If the queue create mailbox command
9727 * fails this function will return -ENXIO.
9730 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint16_t imax
)
9732 struct lpfc_mbx_eq_create
*eq_create
;
9734 int rc
, length
, status
= 0;
9735 struct lpfc_dmabuf
*dmabuf
;
9736 uint32_t shdr_status
, shdr_add_status
;
9737 union lpfc_sli4_cfg_shdr
*shdr
;
9739 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9741 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9742 hw_page_size
= SLI4_PAGE_SIZE
;
9744 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9747 length
= (sizeof(struct lpfc_mbx_eq_create
) -
9748 sizeof(struct lpfc_sli4_cfg_mhdr
));
9749 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9750 LPFC_MBOX_OPCODE_EQ_CREATE
,
9751 length
, LPFC_SLI4_MBX_EMBED
);
9752 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
9753 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
9755 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
9757 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
9758 /* Calculate delay multiper from maximum interrupt per second */
9759 dmult
= LPFC_DMULT_CONST
/imax
- 1;
9760 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
9762 switch (eq
->entry_count
) {
9764 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9765 "0360 Unsupported EQ count. (%d)\n",
9767 if (eq
->entry_count
< 256)
9769 /* otherwise default to smallest count (drop through) */
9771 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9775 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9779 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9783 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9787 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9791 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
9792 memset(dmabuf
->virt
, 0, hw_page_size
);
9793 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9794 putPaddrLow(dmabuf
->phys
);
9795 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9796 putPaddrHigh(dmabuf
->phys
);
9798 mbox
->vport
= phba
->pport
;
9799 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
9800 mbox
->context1
= NULL
;
9801 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9802 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
9803 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9804 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9805 if (shdr_status
|| shdr_add_status
|| rc
) {
9806 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9807 "2500 EQ_CREATE mailbox failed with "
9808 "status x%x add_status x%x, mbx status x%x\n",
9809 shdr_status
, shdr_add_status
, rc
);
9813 eq
->subtype
= LPFC_NONE
;
9814 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
9815 if (eq
->queue_id
== 0xFFFF)
9820 mempool_free(mbox
, phba
->mbox_mem_pool
);
9825 * lpfc_cq_create - Create a Completion Queue on the HBA
9826 * @phba: HBA structure that indicates port to create a queue on.
9827 * @cq: The queue structure to use to create the completion queue.
9828 * @eq: The event queue to bind this completion queue to.
9830 * This function creates a completion queue, as detailed in @wq, on a port,
9831 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9833 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9834 * is used to get the entry count and entry size that are necessary to
9835 * determine the number of pages to allocate and use for this queue. The @eq
9836 * is used to indicate which event queue to bind this completion queue to. This
9837 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9838 * completion queue. This function is asynchronous and will wait for the mailbox
9839 * command to finish before continuing.
9841 * On success this function will return a zero. If unable to allocate enough
9842 * memory this function will return -ENOMEM. If the queue create mailbox command
9843 * fails this function will return -ENXIO.
9846 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9847 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
9849 struct lpfc_mbx_cq_create
*cq_create
;
9850 struct lpfc_dmabuf
*dmabuf
;
9852 int rc
, length
, status
= 0;
9853 uint32_t shdr_status
, shdr_add_status
;
9854 union lpfc_sli4_cfg_shdr
*shdr
;
9855 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9857 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9858 hw_page_size
= SLI4_PAGE_SIZE
;
9861 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9864 length
= (sizeof(struct lpfc_mbx_cq_create
) -
9865 sizeof(struct lpfc_sli4_cfg_mhdr
));
9866 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9867 LPFC_MBOX_OPCODE_CQ_CREATE
,
9868 length
, LPFC_SLI4_MBX_EMBED
);
9869 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
9870 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
9872 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
9873 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
9874 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
, eq
->queue_id
);
9875 switch (cq
->entry_count
) {
9877 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9878 "0361 Unsupported CQ count. (%d)\n",
9880 if (cq
->entry_count
< 256)
9882 /* otherwise default to smallest count (drop through) */
9884 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9888 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9892 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9896 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
9897 memset(dmabuf
->virt
, 0, hw_page_size
);
9898 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9899 putPaddrLow(dmabuf
->phys
);
9900 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9901 putPaddrHigh(dmabuf
->phys
);
9903 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9905 /* The IOCTL status is embedded in the mailbox subheader. */
9906 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
9907 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9908 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9909 if (shdr_status
|| shdr_add_status
|| rc
) {
9910 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9911 "2501 CQ_CREATE mailbox failed with "
9912 "status x%x add_status x%x, mbx status x%x\n",
9913 shdr_status
, shdr_add_status
, rc
);
9917 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9918 if (cq
->queue_id
== 0xFFFF) {
9922 /* link the cq onto the parent eq child list */
9923 list_add_tail(&cq
->list
, &eq
->child_list
);
9924 /* Set up completion queue's type and subtype */
9926 cq
->subtype
= subtype
;
9927 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9932 mempool_free(mbox
, phba
->mbox_mem_pool
);
9937 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
9938 * @phba: HBA structure that indicates port to create a queue on.
9939 * @mq: The queue structure to use to create the mailbox queue.
9940 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
9941 * @cq: The completion queue to associate with this cq.
9943 * This function provides failback (fb) functionality when the
9944 * mq_create_ext fails on older FW generations. It's purpose is identical
9945 * to mq_create_ext otherwise.
9947 * This routine cannot fail as all attributes were previously accessed and
9948 * initialized in mq_create_ext.
9951 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
9952 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
9954 struct lpfc_mbx_mq_create
*mq_create
;
9955 struct lpfc_dmabuf
*dmabuf
;
9958 length
= (sizeof(struct lpfc_mbx_mq_create
) -
9959 sizeof(struct lpfc_sli4_cfg_mhdr
));
9960 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9961 LPFC_MBOX_OPCODE_MQ_CREATE
,
9962 length
, LPFC_SLI4_MBX_EMBED
);
9963 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
9964 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
9966 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
9968 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
9969 switch (mq
->entry_count
) {
9971 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9975 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9979 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9983 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9987 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
9988 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9989 putPaddrLow(dmabuf
->phys
);
9990 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9991 putPaddrHigh(dmabuf
->phys
);
9996 * lpfc_mq_create - Create a mailbox Queue on the HBA
9997 * @phba: HBA structure that indicates port to create a queue on.
9998 * @mq: The queue structure to use to create the mailbox queue.
9999 * @cq: The completion queue to associate with this cq.
10000 * @subtype: The queue's subtype.
10002 * This function creates a mailbox queue, as detailed in @mq, on a port,
10003 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10005 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10006 * is used to get the entry count and entry size that are necessary to
10007 * determine the number of pages to allocate and use for this queue. This
10008 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10009 * mailbox queue. This function is asynchronous and will wait for the mailbox
10010 * command to finish before continuing.
10012 * On success this function will return a zero. If unable to allocate enough
10013 * memory this function will return -ENOMEM. If the queue create mailbox command
10014 * fails this function will return -ENXIO.
10017 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10018 struct lpfc_queue
*cq
, uint32_t subtype
)
10020 struct lpfc_mbx_mq_create
*mq_create
;
10021 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
10022 struct lpfc_dmabuf
*dmabuf
;
10023 LPFC_MBOXQ_t
*mbox
;
10024 int rc
, length
, status
= 0;
10025 uint32_t shdr_status
, shdr_add_status
;
10026 union lpfc_sli4_cfg_shdr
*shdr
;
10027 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10029 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10030 hw_page_size
= SLI4_PAGE_SIZE
;
10032 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10035 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
10036 sizeof(struct lpfc_sli4_cfg_mhdr
));
10037 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10038 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
10039 length
, LPFC_SLI4_MBX_EMBED
);
10041 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
10042 bf_set(lpfc_mbx_mq_create_ext_num_pages
, &mq_create_ext
->u
.request
,
10044 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
, &mq_create_ext
->u
.request
,
10046 bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste
,
10047 &mq_create_ext
->u
.request
, 1);
10048 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
10049 &mq_create_ext
->u
.request
, 1);
10050 bf_set(lpfc_mq_context_cq_id
, &mq_create_ext
->u
.request
.context
,
10052 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
10053 switch (mq
->entry_count
) {
10055 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10056 "0362 Unsupported MQ count. (%d)\n",
10058 if (mq
->entry_count
< 16)
10060 /* otherwise default to smallest count (drop through) */
10062 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10066 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10070 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10074 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10078 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10079 memset(dmabuf
->virt
, 0, hw_page_size
);
10080 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10081 putPaddrLow(dmabuf
->phys
);
10082 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10083 putPaddrHigh(dmabuf
->phys
);
10085 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10086 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
10087 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10088 &mq_create_ext
->u
.response
);
10089 if (rc
!= MBX_SUCCESS
) {
10090 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
10091 "2795 MQ_CREATE_EXT failed with "
10092 "status x%x. Failback to MQ_CREATE.\n",
10094 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
10095 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10096 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10097 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
10098 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10099 &mq_create
->u
.response
);
10102 /* The IOCTL status is embedded in the mailbox subheader. */
10103 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10104 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10105 if (shdr_status
|| shdr_add_status
|| rc
) {
10106 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10107 "2502 MQ_CREATE mailbox failed with "
10108 "status x%x add_status x%x, mbx status x%x\n",
10109 shdr_status
, shdr_add_status
, rc
);
10113 if (mq
->queue_id
== 0xFFFF) {
10117 mq
->type
= LPFC_MQ
;
10118 mq
->subtype
= subtype
;
10119 mq
->host_index
= 0;
10122 /* link the mq onto the parent cq child list */
10123 list_add_tail(&mq
->list
, &cq
->child_list
);
10125 mempool_free(mbox
, phba
->mbox_mem_pool
);
10130 * lpfc_wq_create - Create a Work Queue on the HBA
10131 * @phba: HBA structure that indicates port to create a queue on.
10132 * @wq: The queue structure to use to create the work queue.
10133 * @cq: The completion queue to bind this work queue to.
10134 * @subtype: The subtype of the work queue indicating its functionality.
10136 * This function creates a work queue, as detailed in @wq, on a port, described
10137 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10139 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10140 * is used to get the entry count and entry size that are necessary to
10141 * determine the number of pages to allocate and use for this queue. The @cq
10142 * is used to indicate which completion queue to bind this work queue to. This
10143 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10144 * work queue. This function is asynchronous and will wait for the mailbox
10145 * command to finish before continuing.
10147 * On success this function will return a zero. If unable to allocate enough
10148 * memory this function will return -ENOMEM. If the queue create mailbox command
10149 * fails this function will return -ENXIO.
10152 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
10153 struct lpfc_queue
*cq
, uint32_t subtype
)
10155 struct lpfc_mbx_wq_create
*wq_create
;
10156 struct lpfc_dmabuf
*dmabuf
;
10157 LPFC_MBOXQ_t
*mbox
;
10158 int rc
, length
, status
= 0;
10159 uint32_t shdr_status
, shdr_add_status
;
10160 union lpfc_sli4_cfg_shdr
*shdr
;
10161 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10163 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10164 hw_page_size
= SLI4_PAGE_SIZE
;
10166 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10169 length
= (sizeof(struct lpfc_mbx_wq_create
) -
10170 sizeof(struct lpfc_sli4_cfg_mhdr
));
10171 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10172 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
10173 length
, LPFC_SLI4_MBX_EMBED
);
10174 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
10175 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
10177 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
10179 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
10180 memset(dmabuf
->virt
, 0, hw_page_size
);
10181 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10182 putPaddrLow(dmabuf
->phys
);
10183 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10184 putPaddrHigh(dmabuf
->phys
);
10186 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10187 /* The IOCTL status is embedded in the mailbox subheader. */
10188 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
10189 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10190 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10191 if (shdr_status
|| shdr_add_status
|| rc
) {
10192 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10193 "2503 WQ_CREATE mailbox failed with "
10194 "status x%x add_status x%x, mbx status x%x\n",
10195 shdr_status
, shdr_add_status
, rc
);
10199 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
10200 if (wq
->queue_id
== 0xFFFF) {
10204 wq
->type
= LPFC_WQ
;
10205 wq
->subtype
= subtype
;
10206 wq
->host_index
= 0;
10209 /* link the wq onto the parent cq child list */
10210 list_add_tail(&wq
->list
, &cq
->child_list
);
10212 mempool_free(mbox
, phba
->mbox_mem_pool
);
10217 * lpfc_rq_create - Create a Receive Queue on the HBA
10218 * @phba: HBA structure that indicates port to create a queue on.
10219 * @hrq: The queue structure to use to create the header receive queue.
10220 * @drq: The queue structure to use to create the data receive queue.
10221 * @cq: The completion queue to bind this work queue to.
10223 * This function creates a receive buffer queue pair , as detailed in @hrq and
10224 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10227 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10228 * struct is used to get the entry count that is necessary to determine the
10229 * number of pages to use for this queue. The @cq is used to indicate which
10230 * completion queue to bind received buffers that are posted to these queues to.
10231 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10232 * receive queue pair. This function is asynchronous and will wait for the
10233 * mailbox command to finish before continuing.
10235 * On success this function will return a zero. If unable to allocate enough
10236 * memory this function will return -ENOMEM. If the queue create mailbox command
10237 * fails this function will return -ENXIO.
10240 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10241 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
10243 struct lpfc_mbx_rq_create
*rq_create
;
10244 struct lpfc_dmabuf
*dmabuf
;
10245 LPFC_MBOXQ_t
*mbox
;
10246 int rc
, length
, status
= 0;
10247 uint32_t shdr_status
, shdr_add_status
;
10248 union lpfc_sli4_cfg_shdr
*shdr
;
10249 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10251 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10252 hw_page_size
= SLI4_PAGE_SIZE
;
10254 if (hrq
->entry_count
!= drq
->entry_count
)
10256 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10259 length
= (sizeof(struct lpfc_mbx_rq_create
) -
10260 sizeof(struct lpfc_sli4_cfg_mhdr
));
10261 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10262 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10263 length
, LPFC_SLI4_MBX_EMBED
);
10264 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
10265 switch (hrq
->entry_count
) {
10267 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10268 "2535 Unsupported RQ count. (%d)\n",
10270 if (hrq
->entry_count
< 512)
10272 /* otherwise default to smallest count (drop through) */
10274 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10275 LPFC_RQ_RING_SIZE_512
);
10278 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10279 LPFC_RQ_RING_SIZE_1024
);
10282 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10283 LPFC_RQ_RING_SIZE_2048
);
10286 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10287 LPFC_RQ_RING_SIZE_4096
);
10290 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10292 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10294 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10295 LPFC_HDR_BUF_SIZE
);
10296 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
10297 memset(dmabuf
->virt
, 0, hw_page_size
);
10298 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10299 putPaddrLow(dmabuf
->phys
);
10300 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10301 putPaddrHigh(dmabuf
->phys
);
10303 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10304 /* The IOCTL status is embedded in the mailbox subheader. */
10305 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10306 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10307 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10308 if (shdr_status
|| shdr_add_status
|| rc
) {
10309 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10310 "2504 RQ_CREATE mailbox failed with "
10311 "status x%x add_status x%x, mbx status x%x\n",
10312 shdr_status
, shdr_add_status
, rc
);
10316 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10317 if (hrq
->queue_id
== 0xFFFF) {
10321 hrq
->type
= LPFC_HRQ
;
10322 hrq
->subtype
= subtype
;
10323 hrq
->host_index
= 0;
10324 hrq
->hba_index
= 0;
10326 /* now create the data queue */
10327 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10328 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10329 length
, LPFC_SLI4_MBX_EMBED
);
10330 switch (drq
->entry_count
) {
10332 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10333 "2536 Unsupported RQ count. (%d)\n",
10335 if (drq
->entry_count
< 512)
10337 /* otherwise default to smallest count (drop through) */
10339 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10340 LPFC_RQ_RING_SIZE_512
);
10343 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10344 LPFC_RQ_RING_SIZE_1024
);
10347 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10348 LPFC_RQ_RING_SIZE_2048
);
10351 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10352 LPFC_RQ_RING_SIZE_4096
);
10355 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10357 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10359 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10360 LPFC_DATA_BUF_SIZE
);
10361 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
10362 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10363 putPaddrLow(dmabuf
->phys
);
10364 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10365 putPaddrHigh(dmabuf
->phys
);
10367 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10368 /* The IOCTL status is embedded in the mailbox subheader. */
10369 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10370 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10371 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10372 if (shdr_status
|| shdr_add_status
|| rc
) {
10376 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10377 if (drq
->queue_id
== 0xFFFF) {
10381 drq
->type
= LPFC_DRQ
;
10382 drq
->subtype
= subtype
;
10383 drq
->host_index
= 0;
10384 drq
->hba_index
= 0;
10386 /* link the header and data RQs onto the parent cq child list */
10387 list_add_tail(&hrq
->list
, &cq
->child_list
);
10388 list_add_tail(&drq
->list
, &cq
->child_list
);
10391 mempool_free(mbox
, phba
->mbox_mem_pool
);
10396 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10397 * @eq: The queue structure associated with the queue to destroy.
10399 * This function destroys a queue, as detailed in @eq by sending an mailbox
10400 * command, specific to the type of queue, to the HBA.
10402 * The @eq struct is used to get the queue ID of the queue to destroy.
10404 * On success this function will return a zero. If the queue destroy mailbox
10405 * command fails this function will return -ENXIO.
10408 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
10410 LPFC_MBOXQ_t
*mbox
;
10411 int rc
, length
, status
= 0;
10412 uint32_t shdr_status
, shdr_add_status
;
10413 union lpfc_sli4_cfg_shdr
*shdr
;
10417 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10420 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
10421 sizeof(struct lpfc_sli4_cfg_mhdr
));
10422 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10423 LPFC_MBOX_OPCODE_EQ_DESTROY
,
10424 length
, LPFC_SLI4_MBX_EMBED
);
10425 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
10427 mbox
->vport
= eq
->phba
->pport
;
10428 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10430 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
10431 /* The IOCTL status is embedded in the mailbox subheader. */
10432 shdr
= (union lpfc_sli4_cfg_shdr
*)
10433 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
10434 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10435 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10436 if (shdr_status
|| shdr_add_status
|| rc
) {
10437 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10438 "2505 EQ_DESTROY mailbox failed with "
10439 "status x%x add_status x%x, mbx status x%x\n",
10440 shdr_status
, shdr_add_status
, rc
);
10444 /* Remove eq from any list */
10445 list_del_init(&eq
->list
);
10446 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
10451 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10452 * @cq: The queue structure associated with the queue to destroy.
10454 * This function destroys a queue, as detailed in @cq by sending an mailbox
10455 * command, specific to the type of queue, to the HBA.
10457 * The @cq struct is used to get the queue ID of the queue to destroy.
10459 * On success this function will return a zero. If the queue destroy mailbox
10460 * command fails this function will return -ENXIO.
10463 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
10465 LPFC_MBOXQ_t
*mbox
;
10466 int rc
, length
, status
= 0;
10467 uint32_t shdr_status
, shdr_add_status
;
10468 union lpfc_sli4_cfg_shdr
*shdr
;
10472 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10475 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
10476 sizeof(struct lpfc_sli4_cfg_mhdr
));
10477 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10478 LPFC_MBOX_OPCODE_CQ_DESTROY
,
10479 length
, LPFC_SLI4_MBX_EMBED
);
10480 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
10482 mbox
->vport
= cq
->phba
->pport
;
10483 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10484 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
10485 /* The IOCTL status is embedded in the mailbox subheader. */
10486 shdr
= (union lpfc_sli4_cfg_shdr
*)
10487 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
10488 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10489 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10490 if (shdr_status
|| shdr_add_status
|| rc
) {
10491 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10492 "2506 CQ_DESTROY mailbox failed with "
10493 "status x%x add_status x%x, mbx status x%x\n",
10494 shdr_status
, shdr_add_status
, rc
);
10497 /* Remove cq from any list */
10498 list_del_init(&cq
->list
);
10499 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
10504 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10505 * @qm: The queue structure associated with the queue to destroy.
10507 * This function destroys a queue, as detailed in @mq by sending an mailbox
10508 * command, specific to the type of queue, to the HBA.
10510 * The @mq struct is used to get the queue ID of the queue to destroy.
10512 * On success this function will return a zero. If the queue destroy mailbox
10513 * command fails this function will return -ENXIO.
10516 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
10518 LPFC_MBOXQ_t
*mbox
;
10519 int rc
, length
, status
= 0;
10520 uint32_t shdr_status
, shdr_add_status
;
10521 union lpfc_sli4_cfg_shdr
*shdr
;
10525 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10528 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
10529 sizeof(struct lpfc_sli4_cfg_mhdr
));
10530 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10531 LPFC_MBOX_OPCODE_MQ_DESTROY
,
10532 length
, LPFC_SLI4_MBX_EMBED
);
10533 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
10535 mbox
->vport
= mq
->phba
->pport
;
10536 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10537 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
10538 /* The IOCTL status is embedded in the mailbox subheader. */
10539 shdr
= (union lpfc_sli4_cfg_shdr
*)
10540 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
10541 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10542 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10543 if (shdr_status
|| shdr_add_status
|| rc
) {
10544 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10545 "2507 MQ_DESTROY mailbox failed with "
10546 "status x%x add_status x%x, mbx status x%x\n",
10547 shdr_status
, shdr_add_status
, rc
);
10550 /* Remove mq from any list */
10551 list_del_init(&mq
->list
);
10552 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
10557 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10558 * @wq: The queue structure associated with the queue to destroy.
10560 * This function destroys a queue, as detailed in @wq by sending an mailbox
10561 * command, specific to the type of queue, to the HBA.
10563 * The @wq struct is used to get the queue ID of the queue to destroy.
10565 * On success this function will return a zero. If the queue destroy mailbox
10566 * command fails this function will return -ENXIO.
10569 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
10571 LPFC_MBOXQ_t
*mbox
;
10572 int rc
, length
, status
= 0;
10573 uint32_t shdr_status
, shdr_add_status
;
10574 union lpfc_sli4_cfg_shdr
*shdr
;
10578 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10581 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
10582 sizeof(struct lpfc_sli4_cfg_mhdr
));
10583 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10584 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
10585 length
, LPFC_SLI4_MBX_EMBED
);
10586 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
10588 mbox
->vport
= wq
->phba
->pport
;
10589 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10590 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
10591 shdr
= (union lpfc_sli4_cfg_shdr
*)
10592 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
10593 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10594 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10595 if (shdr_status
|| shdr_add_status
|| rc
) {
10596 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10597 "2508 WQ_DESTROY mailbox failed with "
10598 "status x%x add_status x%x, mbx status x%x\n",
10599 shdr_status
, shdr_add_status
, rc
);
10602 /* Remove wq from any list */
10603 list_del_init(&wq
->list
);
10604 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
10609 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10610 * @rq: The queue structure associated with the queue to destroy.
10612 * This function destroys a queue, as detailed in @rq by sending an mailbox
10613 * command, specific to the type of queue, to the HBA.
10615 * The @rq struct is used to get the queue ID of the queue to destroy.
10617 * On success this function will return a zero. If the queue destroy mailbox
10618 * command fails this function will return -ENXIO.
10621 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10622 struct lpfc_queue
*drq
)
10624 LPFC_MBOXQ_t
*mbox
;
10625 int rc
, length
, status
= 0;
10626 uint32_t shdr_status
, shdr_add_status
;
10627 union lpfc_sli4_cfg_shdr
*shdr
;
10631 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10634 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
10635 sizeof(struct mbox_header
));
10636 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10637 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
10638 length
, LPFC_SLI4_MBX_EMBED
);
10639 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10641 mbox
->vport
= hrq
->phba
->pport
;
10642 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10643 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
10644 /* The IOCTL status is embedded in the mailbox subheader. */
10645 shdr
= (union lpfc_sli4_cfg_shdr
*)
10646 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10647 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10648 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10649 if (shdr_status
|| shdr_add_status
|| rc
) {
10650 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10651 "2509 RQ_DESTROY mailbox failed with "
10652 "status x%x add_status x%x, mbx status x%x\n",
10653 shdr_status
, shdr_add_status
, rc
);
10654 if (rc
!= MBX_TIMEOUT
)
10655 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10658 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10660 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
10661 shdr
= (union lpfc_sli4_cfg_shdr
*)
10662 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10663 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10664 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10665 if (shdr_status
|| shdr_add_status
|| rc
) {
10666 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10667 "2510 RQ_DESTROY mailbox failed with "
10668 "status x%x add_status x%x, mbx status x%x\n",
10669 shdr_status
, shdr_add_status
, rc
);
10672 list_del_init(&hrq
->list
);
10673 list_del_init(&drq
->list
);
10674 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10679 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10680 * @phba: The virtual port for which this call being executed.
10681 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10682 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10683 * @xritag: the xritag that ties this io to the SGL pages.
10685 * This routine will post the sgl pages for the IO that has the xritag
10686 * that is in the iocbq structure. The xritag is assigned during iocbq
10687 * creation and persists for as long as the driver is loaded.
10688 * if the caller has fewer than 256 scatter gather segments to map then
10689 * pdma_phys_addr1 should be 0.
10690 * If the caller needs to map more than 256 scatter gather segment then
10691 * pdma_phys_addr1 should be a valid physical address.
10692 * physical address for SGLs must be 64 byte aligned.
10693 * If you are going to map 2 SGL's then the first one must have 256 entries
10694 * the second sgl can have between 1 and 256 entries.
10698 * -ENXIO, -ENOMEM - Failure
10701 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
10702 dma_addr_t pdma_phys_addr0
,
10703 dma_addr_t pdma_phys_addr1
,
10706 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
10707 LPFC_MBOXQ_t
*mbox
;
10709 uint32_t shdr_status
, shdr_add_status
;
10710 union lpfc_sli4_cfg_shdr
*shdr
;
10712 if (xritag
== NO_XRI
) {
10713 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10714 "0364 Invalid param:\n");
10718 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10722 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10723 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
10724 sizeof(struct lpfc_mbx_post_sgl_pages
) -
10725 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
10727 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
10728 &mbox
->u
.mqe
.un
.post_sgl_pages
;
10729 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
10730 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
10732 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
10733 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
10734 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
10735 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
10737 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
10738 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
10739 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
10740 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
10741 if (!phba
->sli4_hba
.intr_enable
)
10742 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10744 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
10745 /* The IOCTL status is embedded in the mailbox subheader. */
10746 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
10747 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10748 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10749 if (rc
!= MBX_TIMEOUT
)
10750 mempool_free(mbox
, phba
->mbox_mem_pool
);
10751 if (shdr_status
|| shdr_add_status
|| rc
) {
10752 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10753 "2511 POST_SGL mailbox failed with "
10754 "status x%x add_status x%x, mbx status x%x\n",
10755 shdr_status
, shdr_add_status
, rc
);
10762 * lpfc_sli4_next_xritag - Get an xritag for the io
10763 * @phba: Pointer to HBA context object.
10765 * This function gets an xritag for the iocb. If there is no unused xritag
10766 * it will return 0xffff.
10767 * The function returns the allocated xritag if successful, else returns zero.
10768 * Zero is not a valid xritag.
10769 * The caller is not required to hold any lock.
10772 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
10776 spin_lock_irq(&phba
->hbalock
);
10777 xritag
= phba
->sli4_hba
.next_xri
;
10778 if ((xritag
!= (uint16_t) -1) && xritag
<
10779 (phba
->sli4_hba
.max_cfg_param
.max_xri
10780 + phba
->sli4_hba
.max_cfg_param
.xri_base
)) {
10781 phba
->sli4_hba
.next_xri
++;
10782 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
10783 spin_unlock_irq(&phba
->hbalock
);
10786 spin_unlock_irq(&phba
->hbalock
);
10787 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10788 "2004 Failed to allocate XRI.last XRITAG is %d"
10789 " Max XRI is %d, Used XRI is %d\n",
10790 phba
->sli4_hba
.next_xri
,
10791 phba
->sli4_hba
.max_cfg_param
.max_xri
,
10792 phba
->sli4_hba
.max_cfg_param
.xri_used
);
10797 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10798 * @phba: pointer to lpfc hba data structure.
10800 * This routine is invoked to post a block of driver's sgl pages to the
10801 * HBA using non-embedded mailbox command. No Lock is held. This routine
10802 * is only called when the driver is loading and after all IO has been
10806 lpfc_sli4_post_sgl_list(struct lpfc_hba
*phba
)
10808 struct lpfc_sglq
*sglq_entry
;
10809 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10810 struct sgl_page_pairs
*sgl_pg_pairs
;
10812 LPFC_MBOXQ_t
*mbox
;
10813 uint32_t reqlen
, alloclen
, pg_pairs
;
10815 uint16_t xritag_start
= 0;
10816 int els_xri_cnt
, rc
= 0;
10817 uint32_t shdr_status
, shdr_add_status
;
10818 union lpfc_sli4_cfg_shdr
*shdr
;
10820 /* The number of sgls to be posted */
10821 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
10823 reqlen
= els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
10824 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10825 if (reqlen
> SLI4_PAGE_SIZE
) {
10826 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10827 "2559 Block sgl registration required DMA "
10828 "size (%d) great than a page\n", reqlen
);
10831 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10833 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10834 "2560 Failed to allocate mbox cmd memory\n");
10838 /* Allocate DMA memory and set up the non-embedded mailbox command */
10839 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10840 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10841 LPFC_SLI4_MBX_NEMBED
);
10843 if (alloclen
< reqlen
) {
10844 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10845 "0285 Allocated DMA memory size (%d) is "
10846 "less than the requested DMA memory "
10847 "size (%d)\n", alloclen
, reqlen
);
10848 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10851 /* Get the first SGE entry from the non-embedded DMA memory */
10852 viraddr
= mbox
->sge_array
->addr
[0];
10854 /* Set up the SGL pages in the non-embedded DMA pages */
10855 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
10856 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
10858 for (pg_pairs
= 0; pg_pairs
< els_xri_cnt
; pg_pairs
++) {
10859 sglq_entry
= phba
->sli4_hba
.lpfc_els_sgl_array
[pg_pairs
];
10860 /* Set up the sge entry */
10861 sgl_pg_pairs
->sgl_pg0_addr_lo
=
10862 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
10863 sgl_pg_pairs
->sgl_pg0_addr_hi
=
10864 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
10865 sgl_pg_pairs
->sgl_pg1_addr_lo
=
10866 cpu_to_le32(putPaddrLow(0));
10867 sgl_pg_pairs
->sgl_pg1_addr_hi
=
10868 cpu_to_le32(putPaddrHigh(0));
10869 /* Keep the first xritag on the list */
10871 xritag_start
= sglq_entry
->sli4_xritag
;
10874 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
10875 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, els_xri_cnt
);
10876 /* Perform endian conversion if necessary */
10877 sgl
->word0
= cpu_to_le32(sgl
->word0
);
10879 if (!phba
->sli4_hba
.intr_enable
)
10880 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10882 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
10883 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
10885 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
10886 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10887 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10888 if (rc
!= MBX_TIMEOUT
)
10889 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10890 if (shdr_status
|| shdr_add_status
|| rc
) {
10891 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10892 "2513 POST_SGL_BLOCK mailbox command failed "
10893 "status x%x add_status x%x mbx status x%x\n",
10894 shdr_status
, shdr_add_status
, rc
);
10901 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10902 * @phba: pointer to lpfc hba data structure.
10903 * @sblist: pointer to scsi buffer list.
10904 * @count: number of scsi buffers on the list.
10906 * This routine is invoked to post a block of @count scsi sgl pages from a
10907 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10912 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
, struct list_head
*sblist
,
10915 struct lpfc_scsi_buf
*psb
;
10916 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10917 struct sgl_page_pairs
*sgl_pg_pairs
;
10919 LPFC_MBOXQ_t
*mbox
;
10920 uint32_t reqlen
, alloclen
, pg_pairs
;
10922 uint16_t xritag_start
= 0;
10924 uint32_t shdr_status
, shdr_add_status
;
10925 dma_addr_t pdma_phys_bpl1
;
10926 union lpfc_sli4_cfg_shdr
*shdr
;
10928 /* Calculate the requested length of the dma memory */
10929 reqlen
= cnt
* sizeof(struct sgl_page_pairs
) +
10930 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10931 if (reqlen
> SLI4_PAGE_SIZE
) {
10932 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10933 "0217 Block sgl registration required DMA "
10934 "size (%d) great than a page\n", reqlen
);
10937 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10939 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10940 "0283 Failed to allocate mbox cmd memory\n");
10944 /* Allocate DMA memory and set up the non-embedded mailbox command */
10945 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10946 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10947 LPFC_SLI4_MBX_NEMBED
);
10949 if (alloclen
< reqlen
) {
10950 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10951 "2561 Allocated DMA memory size (%d) is "
10952 "less than the requested DMA memory "
10953 "size (%d)\n", alloclen
, reqlen
);
10954 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10957 /* Get the first SGE entry from the non-embedded DMA memory */
10958 viraddr
= mbox
->sge_array
->addr
[0];
10960 /* Set up the SGL pages in the non-embedded DMA pages */
10961 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
10962 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
10965 list_for_each_entry(psb
, sblist
, list
) {
10966 /* Set up the sge entry */
10967 sgl_pg_pairs
->sgl_pg0_addr_lo
=
10968 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
10969 sgl_pg_pairs
->sgl_pg0_addr_hi
=
10970 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
10971 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
10972 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
10974 pdma_phys_bpl1
= 0;
10975 sgl_pg_pairs
->sgl_pg1_addr_lo
=
10976 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
10977 sgl_pg_pairs
->sgl_pg1_addr_hi
=
10978 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
10979 /* Keep the first xritag on the list */
10981 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
10985 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
10986 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
10987 /* Perform endian conversion if necessary */
10988 sgl
->word0
= cpu_to_le32(sgl
->word0
);
10990 if (!phba
->sli4_hba
.intr_enable
)
10991 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10993 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
10994 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
10996 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
10997 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10998 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10999 if (rc
!= MBX_TIMEOUT
)
11000 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11001 if (shdr_status
|| shdr_add_status
|| rc
) {
11002 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11003 "2564 POST_SGL_BLOCK mailbox command failed "
11004 "status x%x add_status x%x mbx status x%x\n",
11005 shdr_status
, shdr_add_status
, rc
);
11012 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11013 * @phba: pointer to lpfc_hba struct that the frame was received on
11014 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11016 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11017 * valid type of frame that the LPFC driver will handle. This function will
11018 * return a zero if the frame is a valid frame or a non zero value when the
11019 * frame does not pass the check.
11022 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
11024 char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
11025 char *type_names
[] = FC_TYPE_NAMES_INIT
;
11026 struct fc_vft_header
*fc_vft_hdr
;
11028 switch (fc_hdr
->fh_r_ctl
) {
11029 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
11030 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
11031 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
11032 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
11033 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
11034 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
11035 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
11036 case FC_RCTL_DD_CMD_STATUS
: /* command status */
11037 case FC_RCTL_ELS_REQ
: /* extended link services request */
11038 case FC_RCTL_ELS_REP
: /* extended link services reply */
11039 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
11040 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
11041 case FC_RCTL_BA_NOP
: /* basic link service NOP */
11042 case FC_RCTL_BA_ABTS
: /* basic link service abort */
11043 case FC_RCTL_BA_RMC
: /* remove connection */
11044 case FC_RCTL_BA_ACC
: /* basic accept */
11045 case FC_RCTL_BA_RJT
: /* basic reject */
11046 case FC_RCTL_BA_PRMT
:
11047 case FC_RCTL_ACK_1
: /* acknowledge_1 */
11048 case FC_RCTL_ACK_0
: /* acknowledge_0 */
11049 case FC_RCTL_P_RJT
: /* port reject */
11050 case FC_RCTL_F_RJT
: /* fabric reject */
11051 case FC_RCTL_P_BSY
: /* port busy */
11052 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
11053 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
11054 case FC_RCTL_LCR
: /* link credit reset */
11055 case FC_RCTL_END
: /* end */
11057 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
11058 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11059 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
11060 return lpfc_fc_frame_check(phba
, fc_hdr
);
11064 switch (fc_hdr
->fh_type
) {
11075 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11076 "2538 Received frame rctl:%s type:%s\n",
11077 rctl_names
[fc_hdr
->fh_r_ctl
],
11078 type_names
[fc_hdr
->fh_type
]);
11081 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11082 "2539 Dropped frame rctl:%s type:%s\n",
11083 rctl_names
[fc_hdr
->fh_r_ctl
],
11084 type_names
[fc_hdr
->fh_type
]);
11089 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11090 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11092 * This function processes the FC header to retrieve the VFI from the VF
11093 * header, if one exists. This function will return the VFI if one exists
11094 * or 0 if no VSAN Header exists.
11097 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
11099 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11101 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
11103 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
11107 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11108 * @phba: Pointer to the HBA structure to search for the vport on
11109 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11110 * @fcfi: The FC Fabric ID that the frame came from
11112 * This function searches the @phba for a vport that matches the content of the
11113 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11114 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11115 * returns the matching vport pointer or NULL if unable to match frame to a
11118 static struct lpfc_vport
*
11119 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
11122 struct lpfc_vport
**vports
;
11123 struct lpfc_vport
*vport
= NULL
;
11125 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
11126 fc_hdr
->fh_d_id
[1] << 8 |
11127 fc_hdr
->fh_d_id
[2]);
11129 vports
= lpfc_create_vport_work_array(phba
);
11130 if (vports
!= NULL
)
11131 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
11132 if (phba
->fcf
.fcfi
== fcfi
&&
11133 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
11134 vports
[i
]->fc_myDID
== did
) {
11139 lpfc_destroy_vport_work_array(phba
, vports
);
11144 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11145 * @vport: The vport to work on.
11147 * This function updates the receive sequence time stamp for this vport. The
11148 * receive sequence time stamp indicates the time that the last frame of the
11149 * the sequence that has been idle for the longest amount of time was received.
11150 * the driver uses this time stamp to indicate if any received sequences have
11154 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
11156 struct lpfc_dmabuf
*h_buf
;
11157 struct hbq_dmabuf
*dmabuf
= NULL
;
11159 /* get the oldest sequence on the rcv list */
11160 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
11161 struct lpfc_dmabuf
, list
);
11164 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11165 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
11169 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11170 * @vport: The vport that the received sequences were sent to.
11172 * This function cleans up all outstanding received sequences. This is called
11173 * by the driver when a link event or user action invalidates all the received
11177 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
11179 struct lpfc_dmabuf
*h_buf
, *hnext
;
11180 struct lpfc_dmabuf
*d_buf
, *dnext
;
11181 struct hbq_dmabuf
*dmabuf
= NULL
;
11183 /* start with the oldest sequence on the rcv list */
11184 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11185 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11186 list_del_init(&dmabuf
->hbuf
.list
);
11187 list_for_each_entry_safe(d_buf
, dnext
,
11188 &dmabuf
->dbuf
.list
, list
) {
11189 list_del_init(&d_buf
->list
);
11190 lpfc_in_buf_free(vport
->phba
, d_buf
);
11192 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11197 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11198 * @vport: The vport that the received sequences were sent to.
11200 * This function determines whether any received sequences have timed out by
11201 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11202 * indicates that there is at least one timed out sequence this routine will
11203 * go through the received sequences one at a time from most inactive to most
11204 * active to determine which ones need to be cleaned up. Once it has determined
11205 * that a sequence needs to be cleaned up it will simply free up the resources
11206 * without sending an abort.
11209 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
11211 struct lpfc_dmabuf
*h_buf
, *hnext
;
11212 struct lpfc_dmabuf
*d_buf
, *dnext
;
11213 struct hbq_dmabuf
*dmabuf
= NULL
;
11214 unsigned long timeout
;
11215 int abort_count
= 0;
11217 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11218 vport
->rcv_buffer_time_stamp
);
11219 if (list_empty(&vport
->rcv_buffer_list
) ||
11220 time_before(jiffies
, timeout
))
11222 /* start with the oldest sequence on the rcv list */
11223 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11224 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11225 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11226 dmabuf
->time_stamp
);
11227 if (time_before(jiffies
, timeout
))
11230 list_del_init(&dmabuf
->hbuf
.list
);
11231 list_for_each_entry_safe(d_buf
, dnext
,
11232 &dmabuf
->dbuf
.list
, list
) {
11233 list_del_init(&d_buf
->list
);
11234 lpfc_in_buf_free(vport
->phba
, d_buf
);
11236 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11239 lpfc_update_rcv_time_stamp(vport
);
11243 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11244 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11246 * This function searches through the existing incomplete sequences that have
11247 * been sent to this @vport. If the frame matches one of the incomplete
11248 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11249 * make up that sequence. If no sequence is found that matches this frame then
11250 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11251 * This function returns a pointer to the first dmabuf in the sequence list that
11252 * the frame was linked to.
11254 static struct hbq_dmabuf
*
11255 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
11257 struct fc_frame_header
*new_hdr
;
11258 struct fc_frame_header
*temp_hdr
;
11259 struct lpfc_dmabuf
*d_buf
;
11260 struct lpfc_dmabuf
*h_buf
;
11261 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11262 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
11264 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11265 dmabuf
->time_stamp
= jiffies
;
11266 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11267 /* Use the hdr_buf to find the sequence that this frame belongs to */
11268 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11269 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11270 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11271 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11272 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11274 /* found a pending sequence that matches this frame */
11275 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11280 * This indicates first frame received for this sequence.
11281 * Queue the buffer on the vport's rcv_buffer_list.
11283 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11284 lpfc_update_rcv_time_stamp(vport
);
11287 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
11288 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
11289 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11290 list_del_init(&seq_dmabuf
->hbuf
.list
);
11291 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11292 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11293 lpfc_update_rcv_time_stamp(vport
);
11296 /* move this sequence to the tail to indicate a young sequence */
11297 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11298 seq_dmabuf
->time_stamp
= jiffies
;
11299 lpfc_update_rcv_time_stamp(vport
);
11300 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
11301 temp_hdr
= dmabuf
->hbuf
.virt
;
11302 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11305 /* find the correct place in the sequence to insert this frame */
11306 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11307 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11308 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
11310 * If the frame's sequence count is greater than the frame on
11311 * the list then insert the frame right after this frame
11313 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
11314 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11315 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
11323 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11324 * @vport: pointer to a vitural port
11325 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11327 * This function tries to abort from the partially assembed sequence, described
11328 * by the information from basic abbort @dmabuf. It checks to see whether such
11329 * partially assembled sequence held by the driver. If so, it shall free up all
11330 * the frames from the partially assembled sequence.
11333 * true -- if there is matching partially assembled sequence present and all
11334 * the frames freed with the sequence;
11335 * false -- if there is no matching partially assembled sequence present so
11336 * nothing got aborted in the lower layer driver
11339 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
11340 struct hbq_dmabuf
*dmabuf
)
11342 struct fc_frame_header
*new_hdr
;
11343 struct fc_frame_header
*temp_hdr
;
11344 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
11345 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11347 /* Use the hdr_buf to find the sequence that matches this frame */
11348 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11349 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
11350 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11351 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11352 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11353 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11354 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11355 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11357 /* found a pending sequence that matches this frame */
11358 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11362 /* Free up all the frames from the partially assembled sequence */
11364 list_for_each_entry_safe(d_buf
, n_buf
,
11365 &seq_dmabuf
->dbuf
.list
, list
) {
11366 list_del_init(&d_buf
->list
);
11367 lpfc_in_buf_free(vport
->phba
, d_buf
);
11375 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11376 * @phba: Pointer to HBA context object.
11377 * @cmd_iocbq: pointer to the command iocbq structure.
11378 * @rsp_iocbq: pointer to the response iocbq structure.
11380 * This function handles the sequence abort accept iocb command complete
11381 * event. It properly releases the memory allocated to the sequence abort
11385 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba
*phba
,
11386 struct lpfc_iocbq
*cmd_iocbq
,
11387 struct lpfc_iocbq
*rsp_iocbq
)
11390 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
11394 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11395 * @phba: Pointer to HBA context object.
11396 * @fc_hdr: pointer to a FC frame header.
11398 * This function sends a basic accept to a previous unsol sequence abort
11399 * event after aborting the sequence handling.
11402 lpfc_sli4_seq_abort_acc(struct lpfc_hba
*phba
,
11403 struct fc_frame_header
*fc_hdr
)
11405 struct lpfc_iocbq
*ctiocb
= NULL
;
11406 struct lpfc_nodelist
*ndlp
;
11407 uint16_t oxid
, rxid
;
11408 uint32_t sid
, fctl
;
11411 if (!lpfc_is_link_up(phba
))
11414 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11415 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11416 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
11418 ndlp
= lpfc_findnode_did(phba
->pport
, sid
);
11420 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11421 "1268 Find ndlp returned NULL for oxid:x%x "
11422 "SID:x%x\n", oxid
, sid
);
11426 /* Allocate buffer for acc iocb */
11427 ctiocb
= lpfc_sli_get_iocbq(phba
);
11431 /* Extract the F_CTL field from FC_HDR */
11432 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
11434 icmd
= &ctiocb
->iocb
;
11435 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
11436 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
11437 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
11438 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
11439 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
11441 /* Fill in the rest of iocb fields */
11442 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
11443 icmd
->ulpBdeCount
= 0;
11445 icmd
->ulpClass
= CLASS3
;
11446 icmd
->ulpContext
= ndlp
->nlp_rpi
;
11448 ctiocb
->iocb_cmpl
= NULL
;
11449 ctiocb
->vport
= phba
->pport
;
11450 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_acc_cmpl
;
11452 if (fctl
& FC_FC_EX_CTX
) {
11453 /* ABTS sent by responder to CT exchange, construction
11454 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11455 * field and RX_ID from ABTS for RX_ID field.
11457 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_RSP
);
11458 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, rxid
);
11459 ctiocb
->sli4_xritag
= oxid
;
11461 /* ABTS sent by initiator to CT exchange, construction
11462 * of BA_ACC will need to allocate a new XRI as for the
11463 * XRI_TAG and RX_ID fields.
11465 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_INT
);
11466 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, NO_XRI
);
11467 ctiocb
->sli4_xritag
= NO_XRI
;
11469 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_acc
, oxid
);
11471 /* Xmit CT abts accept on exchange <xid> */
11472 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11473 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11474 CMD_XMIT_BLS_RSP64_CX
, phba
->link_state
);
11475 lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
11479 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11480 * @vport: Pointer to the vport on which this sequence was received
11481 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11483 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11484 * receive sequence is only partially assembed by the driver, it shall abort
11485 * the partially assembled frames for the sequence. Otherwise, if the
11486 * unsolicited receive sequence has been completely assembled and passed to
11487 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11488 * unsolicited sequence has been aborted. After that, it will issue a basic
11489 * accept to accept the abort.
11492 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
11493 struct hbq_dmabuf
*dmabuf
)
11495 struct lpfc_hba
*phba
= vport
->phba
;
11496 struct fc_frame_header fc_hdr
;
11500 /* Make a copy of fc_hdr before the dmabuf being released */
11501 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
11502 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
11504 if (fctl
& FC_FC_EX_CTX
) {
11506 * ABTS sent by responder to exchange, just free the buffer
11508 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11511 * ABTS sent by initiator to exchange, need to do cleanup
11513 /* Try to abort partially assembled seq */
11514 abts_par
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
11516 /* Send abort to ULP if partially seq abort failed */
11517 if (abts_par
== false)
11518 lpfc_sli4_send_seq_to_ulp(vport
, dmabuf
);
11520 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11522 /* Send basic accept (BA_ACC) to the abort requester */
11523 lpfc_sli4_seq_abort_acc(phba
, &fc_hdr
);
11527 * lpfc_seq_complete - Indicates if a sequence is complete
11528 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11530 * This function checks the sequence, starting with the frame described by
11531 * @dmabuf, to see if all the frames associated with this sequence are present.
11532 * the frames associated with this sequence are linked to the @dmabuf using the
11533 * dbuf list. This function looks for two major things. 1) That the first frame
11534 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11535 * set. 3) That there are no holes in the sequence count. The function will
11536 * return 1 when the sequence is complete, otherwise it will return 0.
11539 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
11541 struct fc_frame_header
*hdr
;
11542 struct lpfc_dmabuf
*d_buf
;
11543 struct hbq_dmabuf
*seq_dmabuf
;
11547 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11548 /* make sure first fame of sequence has a sequence count of zero */
11549 if (hdr
->fh_seq_cnt
!= seq_count
)
11551 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11552 hdr
->fh_f_ctl
[1] << 8 |
11554 /* If last frame of sequence we can return success. */
11555 if (fctl
& FC_FC_END_SEQ
)
11557 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
11558 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11559 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11560 /* If there is a hole in the sequence count then fail. */
11561 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
11563 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11564 hdr
->fh_f_ctl
[1] << 8 |
11566 /* If last frame of sequence we can return success. */
11567 if (fctl
& FC_FC_END_SEQ
)
11574 * lpfc_prep_seq - Prep sequence for ULP processing
11575 * @vport: Pointer to the vport on which this sequence was received
11576 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11578 * This function takes a sequence, described by a list of frames, and creates
11579 * a list of iocbq structures to describe the sequence. This iocbq list will be
11580 * used to issue to the generic unsolicited sequence handler. This routine
11581 * returns a pointer to the first iocbq in the list. If the function is unable
11582 * to allocate an iocbq then it throw out the received frames that were not
11583 * able to be described and return a pointer to the first iocbq. If unable to
11584 * allocate any iocbqs (including the first) this function will return NULL.
11586 static struct lpfc_iocbq
*
11587 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
11589 struct lpfc_dmabuf
*d_buf
, *n_buf
;
11590 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
11591 struct fc_frame_header
*fc_hdr
;
11593 struct ulp_bde64
*pbde
;
11595 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11596 /* remove from receive buffer list */
11597 list_del_init(&seq_dmabuf
->hbuf
.list
);
11598 lpfc_update_rcv_time_stamp(vport
);
11599 /* get the Remote Port's SID */
11600 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11601 /* Get an iocbq struct to fill in. */
11602 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11604 /* Initialize the first IOCB. */
11605 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
11606 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
11607 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
11608 first_iocbq
->iocb
.ulpContext
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11609 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
11610 vport
->vpi
+ vport
->phba
->vpi_base
;
11611 /* put the first buffer into the first IOCBq */
11612 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
11613 first_iocbq
->context3
= NULL
;
11614 first_iocbq
->iocb
.ulpBdeCount
= 1;
11615 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11616 LPFC_DATA_BUF_SIZE
;
11617 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11618 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11619 bf_get(lpfc_rcqe_length
,
11620 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11622 iocbq
= first_iocbq
;
11624 * Each IOCBq can have two Buffers assigned, so go through the list
11625 * of buffers for this sequence and save two buffers in each IOCBq
11627 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11629 lpfc_in_buf_free(vport
->phba
, d_buf
);
11632 if (!iocbq
->context3
) {
11633 iocbq
->context3
= d_buf
;
11634 iocbq
->iocb
.ulpBdeCount
++;
11635 pbde
= (struct ulp_bde64
*)
11636 &iocbq
->iocb
.unsli3
.sli3Words
[4];
11637 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
11638 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11639 bf_get(lpfc_rcqe_length
,
11640 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11642 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11645 first_iocbq
->iocb
.ulpStatus
=
11646 IOSTAT_FCP_RSP_ERROR
;
11647 first_iocbq
->iocb
.un
.ulpWord
[4] =
11648 IOERR_NO_RESOURCES
;
11650 lpfc_in_buf_free(vport
->phba
, d_buf
);
11653 iocbq
->context2
= d_buf
;
11654 iocbq
->context3
= NULL
;
11655 iocbq
->iocb
.ulpBdeCount
= 1;
11656 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11657 LPFC_DATA_BUF_SIZE
;
11658 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11659 bf_get(lpfc_rcqe_length
,
11660 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11661 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11662 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
11665 return first_iocbq
;
11669 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
11670 struct hbq_dmabuf
*seq_dmabuf
)
11672 struct fc_frame_header
*fc_hdr
;
11673 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
11674 struct lpfc_hba
*phba
= vport
->phba
;
11676 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11677 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
11679 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11680 "2707 Ring %d handler: Failed to allocate "
11681 "iocb Rctl x%x Type x%x received\n",
11683 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11686 if (!lpfc_complete_unsol_iocb(phba
,
11687 &phba
->sli
.ring
[LPFC_ELS_RING
],
11688 iocbq
, fc_hdr
->fh_r_ctl
,
11690 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11691 "2540 Ring %d handler: unexpected Rctl "
11692 "x%x Type x%x received\n",
11694 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11696 /* Free iocb created in lpfc_prep_seq */
11697 list_for_each_entry_safe(curr_iocb
, next_iocb
,
11698 &iocbq
->list
, list
) {
11699 list_del_init(&curr_iocb
->list
);
11700 lpfc_sli_release_iocbq(phba
, curr_iocb
);
11702 lpfc_sli_release_iocbq(phba
, iocbq
);
11706 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11707 * @phba: Pointer to HBA context object.
11709 * This function is called with no lock held. This function processes all
11710 * the received buffers and gives it to upper layers when a received buffer
11711 * indicates that it is the final frame in the sequence. The interrupt
11712 * service routine processes received buffers at interrupt contexts and adds
11713 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11714 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11715 * appropriate receive function when the final frame in a sequence is received.
11718 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
11719 struct hbq_dmabuf
*dmabuf
)
11721 struct hbq_dmabuf
*seq_dmabuf
;
11722 struct fc_frame_header
*fc_hdr
;
11723 struct lpfc_vport
*vport
;
11726 /* Process each received buffer */
11727 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11728 /* check to see if this a valid type of frame */
11729 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
11730 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11733 fcfi
= bf_get(lpfc_rcqe_fcf_id
, &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11734 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
11735 if (!vport
|| !(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
11736 /* throw out the frame */
11737 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11740 /* Handle the basic abort sequence (BA_ABTS) event */
11741 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
11742 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
11746 /* Link this frame */
11747 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
11749 /* unable to add frame to vport - throw it out */
11750 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11753 /* If not last frame in sequence continue processing frames. */
11754 if (!lpfc_seq_complete(seq_dmabuf
))
11757 /* Send the complete sequence to the upper layer protocol */
11758 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
11762 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11763 * @phba: pointer to lpfc hba data structure.
11765 * This routine is invoked to post rpi header templates to the
11766 * HBA consistent with the SLI-4 interface spec. This routine
11767 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11768 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11770 * This routine does not require any locks. It's usage is expected
11771 * to be driver load or reset recovery when the driver is
11776 * -EIO - The mailbox failed to complete successfully.
11777 * When this error occurs, the driver is not guaranteed
11778 * to have any rpi regions posted to the device and
11779 * must either attempt to repost the regions or take a
11783 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
11785 struct lpfc_rpi_hdr
*rpi_page
;
11788 /* Post all rpi memory regions to the port. */
11789 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
11790 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
11791 if (rc
!= MBX_SUCCESS
) {
11792 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11793 "2008 Error %d posting all rpi "
11804 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11805 * @phba: pointer to lpfc hba data structure.
11806 * @rpi_page: pointer to the rpi memory region.
11808 * This routine is invoked to post a single rpi header to the
11809 * HBA consistent with the SLI-4 interface spec. This memory region
11810 * maps up to 64 rpi context regions.
11814 * -ENOMEM - No available memory
11815 * -EIO - The mailbox failed to complete successfully.
11818 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
11820 LPFC_MBOXQ_t
*mboxq
;
11821 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
11824 uint32_t shdr_status
, shdr_add_status
;
11825 union lpfc_sli4_cfg_shdr
*shdr
;
11827 /* The port is notified of the header region via a mailbox command. */
11828 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11830 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11831 "2001 Unable to allocate memory for issuing "
11832 "SLI_CONFIG_SPECIAL mailbox command\n");
11836 /* Post all rpi memory regions to the port. */
11837 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
11838 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11839 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11840 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
11841 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
11842 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
11843 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
11844 hdr_tmpl
, rpi_page
->page_count
);
11845 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
11846 rpi_page
->start_rpi
);
11847 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
11848 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
11849 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
11850 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
11851 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11852 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11853 if (rc
!= MBX_TIMEOUT
)
11854 mempool_free(mboxq
, phba
->mbox_mem_pool
);
11855 if (shdr_status
|| shdr_add_status
|| rc
) {
11856 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11857 "2514 POST_RPI_HDR mailbox failed with "
11858 "status x%x add_status x%x, mbx status x%x\n",
11859 shdr_status
, shdr_add_status
, rc
);
11866 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11867 * @phba: pointer to lpfc hba data structure.
11869 * This routine is invoked to post rpi header templates to the
11870 * HBA consistent with the SLI-4 interface spec. This routine
11871 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11872 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11875 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11876 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11879 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
11882 uint16_t max_rpi
, rpi_base
, rpi_limit
;
11883 uint16_t rpi_remaining
;
11884 struct lpfc_rpi_hdr
*rpi_hdr
;
11886 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
11887 rpi_base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
11888 rpi_limit
= phba
->sli4_hba
.next_rpi
;
11891 * The valid rpi range is not guaranteed to be zero-based. Start
11892 * the search at the rpi_base as reported by the port.
11894 spin_lock_irq(&phba
->hbalock
);
11895 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, rpi_base
);
11896 if (rpi
>= rpi_limit
|| rpi
< rpi_base
)
11897 rpi
= LPFC_RPI_ALLOC_ERROR
;
11899 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
11900 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
11901 phba
->sli4_hba
.rpi_count
++;
11905 * Don't try to allocate more rpi header regions if the device limit
11906 * on available rpis max has been exhausted.
11908 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
11909 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
11910 spin_unlock_irq(&phba
->hbalock
);
11915 * If the driver is running low on rpi resources, allocate another
11916 * page now. Note that the next_rpi value is used because
11917 * it represents how many are actually in use whereas max_rpi notes
11918 * how many are supported max by the device.
11920 rpi_remaining
= phba
->sli4_hba
.next_rpi
- rpi_base
-
11921 phba
->sli4_hba
.rpi_count
;
11922 spin_unlock_irq(&phba
->hbalock
);
11923 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
11924 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
11926 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11927 "2002 Error Could not grow rpi "
11930 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
11938 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11939 * @phba: pointer to lpfc hba data structure.
11941 * This routine is invoked to release an rpi to the pool of
11942 * available rpis maintained by the driver.
11945 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
11947 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
11948 phba
->sli4_hba
.rpi_count
--;
11949 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
11954 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11955 * @phba: pointer to lpfc hba data structure.
11957 * This routine is invoked to release an rpi to the pool of
11958 * available rpis maintained by the driver.
11961 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
11963 spin_lock_irq(&phba
->hbalock
);
11964 __lpfc_sli4_free_rpi(phba
, rpi
);
11965 spin_unlock_irq(&phba
->hbalock
);
11969 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
11970 * @phba: pointer to lpfc hba data structure.
11972 * This routine is invoked to remove the memory region that
11973 * provided rpi via a bitmask.
11976 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
11978 kfree(phba
->sli4_hba
.rpi_bmask
);
11982 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
11983 * @phba: pointer to lpfc hba data structure.
11985 * This routine is invoked to remove the memory region that
11986 * provided rpi via a bitmask.
11989 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
)
11991 LPFC_MBOXQ_t
*mboxq
;
11992 struct lpfc_hba
*phba
= ndlp
->phba
;
11995 /* The port is notified of the header region via a mailbox command. */
11996 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12000 /* Post all rpi memory regions to the port. */
12001 lpfc_resume_rpi(mboxq
, ndlp
);
12002 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12003 if (rc
== MBX_NOT_FINISHED
) {
12004 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12005 "2010 Resume RPI Mailbox failed "
12006 "status %d, mbxStatus x%x\n", rc
,
12007 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12008 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12015 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12016 * @phba: pointer to lpfc hba data structure.
12017 * @vpi: vpi value to activate with the port.
12019 * This routine is invoked to activate a vpi with the
12020 * port when the host intends to use vports with a
12025 * -Evalue otherwise
12028 lpfc_sli4_init_vpi(struct lpfc_hba
*phba
, uint16_t vpi
)
12030 LPFC_MBOXQ_t
*mboxq
;
12032 int retval
= MBX_SUCCESS
;
12037 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12040 lpfc_init_vpi(phba
, mboxq
, vpi
);
12041 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_INIT_VPI
);
12042 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
12043 if (rc
!= MBX_SUCCESS
) {
12044 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12045 "2022 INIT VPI Mailbox failed "
12046 "status %d, mbxStatus x%x\n", rc
,
12047 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12050 if (rc
!= MBX_TIMEOUT
)
12051 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12057 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12058 * @phba: pointer to lpfc hba data structure.
12059 * @mboxq: Pointer to mailbox object.
12061 * This routine is invoked to manually add a single FCF record. The caller
12062 * must pass a completely initialized FCF_Record. This routine takes
12063 * care of the nonembedded mailbox operations.
12066 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
12069 union lpfc_sli4_cfg_shdr
*shdr
;
12070 uint32_t shdr_status
, shdr_add_status
;
12072 virt_addr
= mboxq
->sge_array
->addr
[0];
12073 /* The IOCTL status is embedded in the mailbox subheader. */
12074 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
12075 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12076 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12078 if ((shdr_status
|| shdr_add_status
) &&
12079 (shdr_status
!= STATUS_FCF_IN_USE
))
12080 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12081 "2558 ADD_FCF_RECORD mailbox failed with "
12082 "status x%x add_status x%x\n",
12083 shdr_status
, shdr_add_status
);
12085 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12089 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12090 * @phba: pointer to lpfc hba data structure.
12091 * @fcf_record: pointer to the initialized fcf record to add.
12093 * This routine is invoked to manually add a single FCF record. The caller
12094 * must pass a completely initialized FCF_Record. This routine takes
12095 * care of the nonembedded mailbox operations.
12098 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
12101 LPFC_MBOXQ_t
*mboxq
;
12104 dma_addr_t phys_addr
;
12105 struct lpfc_mbx_sge sge
;
12106 uint32_t alloc_len
, req_len
;
12109 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12111 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12112 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12116 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
12119 /* Allocate DMA memory and set up the non-embedded mailbox command */
12120 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12121 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
12122 req_len
, LPFC_SLI4_MBX_NEMBED
);
12123 if (alloc_len
< req_len
) {
12124 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12125 "2523 Allocated DMA memory size (x%x) is "
12126 "less than the requested DMA memory "
12127 "size (x%x)\n", alloc_len
, req_len
);
12128 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12133 * Get the first SGE entry from the non-embedded DMA memory. This
12134 * routine only uses a single SGE.
12136 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
12137 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
12138 virt_addr
= mboxq
->sge_array
->addr
[0];
12140 * Configure the FCF record for FCFI 0. This is the driver's
12141 * hardcoded default and gets used in nonFIP mode.
12143 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
12144 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
12145 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
12148 * Copy the fcf_index and the FCF Record Data. The data starts after
12149 * the FCoE header plus word10. The data copy needs to be endian
12152 bytep
+= sizeof(uint32_t);
12153 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
12154 mboxq
->vport
= phba
->pport
;
12155 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
12156 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12157 if (rc
== MBX_NOT_FINISHED
) {
12158 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12159 "2515 ADD_FCF_RECORD mailbox failed with "
12160 "status 0x%x\n", rc
);
12161 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12170 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12171 * @phba: pointer to lpfc hba data structure.
12172 * @fcf_record: pointer to the fcf record to write the default data.
12173 * @fcf_index: FCF table entry index.
12175 * This routine is invoked to build the driver's default FCF record. The
12176 * values used are hardcoded. This routine handles memory initialization.
12180 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
12181 struct fcf_record
*fcf_record
,
12182 uint16_t fcf_index
)
12184 memset(fcf_record
, 0, sizeof(struct fcf_record
));
12185 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
12186 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
12187 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
12188 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
12189 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
12190 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
12191 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
12192 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
12193 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
12194 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
12195 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
12196 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
12197 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
12198 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
12199 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
12200 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
12201 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
12202 /* Set the VLAN bit map */
12203 if (phba
->valid_vlan
) {
12204 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
12205 = 1 << (phba
->vlan_id
% 8);
12210 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12211 * @phba: pointer to lpfc hba data structure.
12212 * @fcf_index: FCF table entry offset.
12214 * This routine is invoked to scan the entire FCF table by reading FCF
12215 * record and processing it one at a time starting from the @fcf_index
12216 * for initial FCF discovery or fast FCF failover rediscovery.
12218 * Return 0 if the mailbox command is submitted sucessfully, none 0
12222 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12225 LPFC_MBOXQ_t
*mboxq
;
12227 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
12228 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12230 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12231 "2000 Failed to allocate mbox for "
12234 goto fail_fcf_scan
;
12236 /* Construct the read FCF record mailbox command */
12237 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12240 goto fail_fcf_scan
;
12242 /* Issue the mailbox command asynchronously */
12243 mboxq
->vport
= phba
->pport
;
12244 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
12245 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12246 if (rc
== MBX_NOT_FINISHED
)
12249 spin_lock_irq(&phba
->hbalock
);
12250 phba
->hba_flag
|= FCF_DISC_INPROGRESS
;
12251 spin_unlock_irq(&phba
->hbalock
);
12252 /* Reset eligible FCF count for new scan */
12253 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
12254 phba
->fcf
.eligible_fcf_cnt
= 0;
12260 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12261 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12262 spin_lock_irq(&phba
->hbalock
);
12263 phba
->hba_flag
&= ~FCF_DISC_INPROGRESS
;
12264 spin_unlock_irq(&phba
->hbalock
);
12270 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
12271 * @phba: pointer to lpfc hba data structure.
12272 * @fcf_index: FCF table entry offset.
12274 * This routine is invoked to read an FCF record indicated by @fcf_index
12275 * and to use it for FLOGI round robin FCF failover.
12277 * Return 0 if the mailbox command is submitted sucessfully, none 0
12281 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12284 LPFC_MBOXQ_t
*mboxq
;
12286 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12288 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12289 "2763 Failed to allocate mbox for "
12292 goto fail_fcf_read
;
12294 /* Construct the read FCF record mailbox command */
12295 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12298 goto fail_fcf_read
;
12300 /* Issue the mailbox command asynchronously */
12301 mboxq
->vport
= phba
->pport
;
12302 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
12303 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12304 if (rc
== MBX_NOT_FINISHED
)
12310 if (error
&& mboxq
)
12311 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12316 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12317 * @phba: pointer to lpfc hba data structure.
12318 * @fcf_index: FCF table entry offset.
12320 * This routine is invoked to read an FCF record indicated by @fcf_index to
12321 * determine whether it's eligible for FLOGI round robin failover list.
12323 * Return 0 if the mailbox command is submitted sucessfully, none 0
12327 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12330 LPFC_MBOXQ_t
*mboxq
;
12332 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12334 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12335 "2758 Failed to allocate mbox for "
12338 goto fail_fcf_read
;
12340 /* Construct the read FCF record mailbox command */
12341 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12344 goto fail_fcf_read
;
12346 /* Issue the mailbox command asynchronously */
12347 mboxq
->vport
= phba
->pport
;
12348 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
12349 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12350 if (rc
== MBX_NOT_FINISHED
)
12356 if (error
&& mboxq
)
12357 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12362 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12363 * @phba: pointer to lpfc hba data structure.
12365 * This routine is to get the next eligible FCF record index in a round
12366 * robin fashion. If the next eligible FCF record index equals to the
12367 * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12368 * shall be returned, otherwise, the next eligible FCF record's index
12369 * shall be returned.
12372 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
12374 uint16_t next_fcf_index
;
12376 /* Search start from next bit of currently registered FCF index */
12377 next_fcf_index
= (phba
->fcf
.current_rec
.fcf_indx
+ 1) %
12378 LPFC_SLI4_FCF_TBL_INDX_MAX
;
12379 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12380 LPFC_SLI4_FCF_TBL_INDX_MAX
,
12383 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12384 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
12385 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12386 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
12388 /* Check roundrobin failover list empty condition */
12389 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12390 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12391 "2844 No roundrobin failover FCF available\n");
12392 return LPFC_FCOE_FCF_NEXT_NONE
;
12395 /* Check roundrobin failover index bmask stop condition */
12396 if (next_fcf_index
== phba
->fcf
.fcf_rr_init_indx
) {
12397 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_RRU
)) {
12398 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12399 "2847 Round robin failover FCF index "
12400 "search hit stop condition:x%x\n",
12402 return LPFC_FCOE_FCF_NEXT_NONE
;
12404 /* The roundrobin failover index bmask updated, start over */
12405 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12406 "2848 Round robin failover FCF index bmask "
12407 "updated, start over\n");
12408 spin_lock_irq(&phba
->hbalock
);
12409 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_RRU
;
12410 spin_unlock_irq(&phba
->hbalock
);
12411 return phba
->fcf
.fcf_rr_init_indx
;
12414 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12415 "2845 Get next round robin failover "
12416 "FCF index x%x\n", next_fcf_index
);
12417 return next_fcf_index
;
12421 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12422 * @phba: pointer to lpfc hba data structure.
12424 * This routine sets the FCF record index in to the eligible bmask for
12425 * round robin failover search. It checks to make sure that the index
12426 * does not go beyond the range of the driver allocated bmask dimension
12427 * before setting the bit.
12429 * Returns 0 if the index bit successfully set, otherwise, it returns
12433 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12435 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12436 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12437 "2610 HBA FCF index reached driver's "
12438 "book keeping dimension: fcf_index:%d, "
12439 "driver_bmask_max:%d\n",
12440 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12443 /* Set the eligible FCF record index bmask */
12444 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12446 /* Set the roundrobin index bmask updated */
12447 spin_lock_irq(&phba
->hbalock
);
12448 phba
->fcf
.fcf_flag
|= FCF_REDISC_RRU
;
12449 spin_unlock_irq(&phba
->hbalock
);
12451 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12452 "2790 Set FCF index x%x to round robin failover "
12453 "bmask\n", fcf_index
);
12459 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
12460 * @phba: pointer to lpfc hba data structure.
12462 * This routine clears the FCF record index from the eligible bmask for
12463 * round robin failover search. It checks to make sure that the index
12464 * does not go beyond the range of the driver allocated bmask dimension
12465 * before clearing the bit.
12468 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12470 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12471 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12472 "2762 HBA FCF index goes beyond driver's "
12473 "book keeping dimension: fcf_index:%d, "
12474 "driver_bmask_max:%d\n",
12475 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12478 /* Clear the eligible FCF record index bmask */
12479 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12481 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12482 "2791 Clear FCF index x%x from round robin failover "
12483 "bmask\n", fcf_index
);
12487 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12488 * @phba: pointer to lpfc hba data structure.
12490 * This routine is the completion routine for the rediscover FCF table mailbox
12491 * command. If the mailbox command returned failure, it will try to stop the
12492 * FCF rediscover wait timer.
12495 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
12497 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12498 uint32_t shdr_status
, shdr_add_status
;
12500 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12502 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
12503 &redisc_fcf
->header
.cfg_shdr
.response
);
12504 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
12505 &redisc_fcf
->header
.cfg_shdr
.response
);
12506 if (shdr_status
|| shdr_add_status
) {
12507 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12508 "2746 Requesting for FCF rediscovery failed "
12509 "status x%x add_status x%x\n",
12510 shdr_status
, shdr_add_status
);
12511 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
12512 spin_lock_irq(&phba
->hbalock
);
12513 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
12514 spin_unlock_irq(&phba
->hbalock
);
12516 * CVL event triggered FCF rediscover request failed,
12517 * last resort to re-try current registered FCF entry.
12519 lpfc_retry_pport_discovery(phba
);
12521 spin_lock_irq(&phba
->hbalock
);
12522 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
12523 spin_unlock_irq(&phba
->hbalock
);
12525 * DEAD FCF event triggered FCF rediscover request
12526 * failed, last resort to fail over as a link down
12527 * to FCF registration.
12529 lpfc_sli4_fcf_dead_failthrough(phba
);
12532 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12533 "2775 Start FCF rediscovery quiescent period "
12534 "wait timer before scaning FCF table\n");
12536 * Start FCF rediscovery wait timer for pending FCF
12537 * before rescan FCF record table.
12539 lpfc_fcf_redisc_wait_start_timer(phba
);
12542 mempool_free(mbox
, phba
->mbox_mem_pool
);
12546 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
12547 * @phba: pointer to lpfc hba data structure.
12549 * This routine is invoked to request for rediscovery of the entire FCF table
12553 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
12555 LPFC_MBOXQ_t
*mbox
;
12556 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12559 /* Cancel retry delay timers to all vports before FCF rediscover */
12560 lpfc_cancel_all_vport_retry_delay_timer(phba
);
12562 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12564 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12565 "2745 Failed to allocate mbox for "
12566 "requesting FCF rediscover.\n");
12570 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
12571 sizeof(struct lpfc_sli4_cfg_mhdr
));
12572 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12573 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
12574 length
, LPFC_SLI4_MBX_EMBED
);
12576 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12577 /* Set count to 0 for invalidating the entire FCF database */
12578 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
12580 /* Issue the mailbox command asynchronously */
12581 mbox
->vport
= phba
->pport
;
12582 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
12583 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
12585 if (rc
== MBX_NOT_FINISHED
) {
12586 mempool_free(mbox
, phba
->mbox_mem_pool
);
12593 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
12594 * @phba: pointer to lpfc hba data structure.
12596 * This function is the failover routine as a last resort to the FCF DEAD
12597 * event when driver failed to perform fast FCF failover.
12600 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
12602 uint32_t link_state
;
12605 * Last resort as FCF DEAD event failover will treat this as
12606 * a link down, but save the link state because we don't want
12607 * it to be changed to Link Down unless it is already down.
12609 link_state
= phba
->link_state
;
12610 lpfc_linkdown(phba
);
12611 phba
->link_state
= link_state
;
12613 /* Unregister FCF if no devices connected to it */
12614 lpfc_unregister_unused_fcf(phba
);
12618 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12619 * @phba: pointer to lpfc hba data structure.
12621 * This function read region 23 and parse TLV for port status to
12622 * decide if the user disaled the port. If the TLV indicates the
12623 * port is disabled, the hba_flag is set accordingly.
12626 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
12628 LPFC_MBOXQ_t
*pmb
= NULL
;
12630 uint8_t *rgn23_data
= NULL
;
12631 uint32_t offset
= 0, data_size
, sub_tlv_len
, tlv_offset
;
12634 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12636 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12637 "2600 lpfc_sli_read_serdes_param failed to"
12638 " allocate mailbox memory\n");
12643 /* Get adapter Region 23 data */
12644 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
12649 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
12650 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
12652 if (rc
!= MBX_SUCCESS
) {
12653 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
12654 "2601 lpfc_sli_read_link_ste failed to"
12655 " read config region 23 rc 0x%x Status 0x%x\n",
12656 rc
, mb
->mbxStatus
);
12657 mb
->un
.varDmp
.word_cnt
= 0;
12660 * dump mem may return a zero when finished or we got a
12661 * mailbox error, either way we are done.
12663 if (mb
->un
.varDmp
.word_cnt
== 0)
12665 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
12666 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
12668 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
12669 rgn23_data
+ offset
,
12670 mb
->un
.varDmp
.word_cnt
);
12671 offset
+= mb
->un
.varDmp
.word_cnt
;
12672 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
12674 data_size
= offset
;
12680 /* Check the region signature first */
12681 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
12682 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12683 "2619 Config region 23 has bad signature\n");
12688 /* Check the data structure version */
12689 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
12690 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12691 "2620 Config region 23 has bad version\n");
12696 /* Parse TLV entries in the region */
12697 while (offset
< data_size
) {
12698 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
12701 * If the TLV is not driver specific TLV or driver id is
12702 * not linux driver id, skip the record.
12704 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
12705 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
12706 (rgn23_data
[offset
+ 3] != 0)) {
12707 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12711 /* Driver found a driver specific TLV in the config region */
12712 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
12717 * Search for configured port state sub-TLV.
12719 while ((offset
< data_size
) &&
12720 (tlv_offset
< sub_tlv_len
)) {
12721 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
12726 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
12727 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12728 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12732 /* This HBA contains PORT_STE configured */
12733 if (!rgn23_data
[offset
+ 2])
12734 phba
->hba_flag
|= LINK_DISABLED
;
12741 mempool_free(pmb
, phba
->mbox_mem_pool
);
12747 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12748 * @vport: pointer to vport data structure.
12750 * This function iterate through the mailboxq and clean up all REG_LOGIN
12751 * and REG_VPI mailbox commands associated with the vport. This function
12752 * is called when driver want to restart discovery of the vport due to
12753 * a Clear Virtual Link event.
12756 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
12758 struct lpfc_hba
*phba
= vport
->phba
;
12759 LPFC_MBOXQ_t
*mb
, *nextmb
;
12760 struct lpfc_dmabuf
*mp
;
12761 struct lpfc_nodelist
*ndlp
;
12762 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
12763 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
12764 LIST_HEAD(mbox_cmd_list
);
12766 /* Clean up internally queued mailbox commands with the vport */
12767 spin_lock_irq(&phba
->hbalock
);
12768 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
12769 if (mb
->vport
!= vport
)
12772 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
12773 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
12776 list_del(&mb
->list
);
12777 list_add_tail(&mb
->list
, &mbox_cmd_list
);
12779 /* Clean up active mailbox command with the vport */
12780 mb
= phba
->sli
.mbox_active
;
12781 if (mb
&& (mb
->vport
== vport
)) {
12782 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
12783 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
12784 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
12785 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
12786 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
12787 /* Put reference count for delayed processing */
12788 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
12789 /* Unregister the RPI when mailbox complete */
12790 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
12793 spin_unlock_irq(&phba
->hbalock
);
12795 /* Release the cleaned-up mailbox commands */
12796 while (!list_empty(&mbox_cmd_list
)) {
12797 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
12798 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
12799 if (phba
->sli_rev
== LPFC_SLI_REV4
)
12800 __lpfc_sli4_free_rpi(phba
,
12801 mb
->u
.mb
.un
.varRegLogin
.rpi
);
12802 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
12804 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
12807 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
12808 mb
->context2
= NULL
;
12810 spin_lock(shost
->host_lock
);
12811 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
12812 spin_unlock(shost
->host_lock
);
12813 lpfc_nlp_put(ndlp
);
12816 mempool_free(mb
, phba
->mbox_mem_pool
);
12819 /* Release the ndlp with the cleaned-up active mailbox command */
12820 if (act_mbx_ndlp
) {
12821 spin_lock(shost
->host_lock
);
12822 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
12823 spin_unlock(shost
->host_lock
);
12824 lpfc_nlp_put(act_mbx_ndlp
);
12829 * lpfc_drain_txq - Drain the txq
12830 * @phba: Pointer to HBA context object.
12832 * This function attempt to submit IOCBs on the txq
12833 * to the adapter. For SLI4 adapters, the txq contains
12834 * ELS IOCBs that have been deferred because the there
12835 * are no SGLs. This congestion can occur with large
12836 * vport counts during node discovery.
12840 lpfc_drain_txq(struct lpfc_hba
*phba
)
12842 LIST_HEAD(completions
);
12843 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
12844 struct lpfc_iocbq
*piocbq
= 0;
12845 unsigned long iflags
= 0;
12846 char *fail_msg
= NULL
;
12847 struct lpfc_sglq
*sglq
;
12848 union lpfc_wqe wqe
;
12850 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12851 if (pring
->txq_cnt
> pring
->txq_max
)
12852 pring
->txq_max
= pring
->txq_cnt
;
12854 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12856 while (pring
->txq_cnt
) {
12857 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12859 sglq
= __lpfc_sli_get_sglq(phba
);
12861 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12864 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
12866 /* The txq_cnt out of sync. This should
12869 sglq
= __lpfc_clear_active_sglq(phba
,
12870 sglq
->sli4_xritag
);
12871 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12872 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12873 "2823 txq empty and txq_cnt is %d\n ",
12879 /* The xri and iocb resources secured,
12880 * attempt to issue request
12882 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
12883 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
12884 fail_msg
= "to convert bpl to sgl";
12885 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
12886 fail_msg
= "to convert iocb to wqe";
12887 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
12888 fail_msg
= " - Wq is full";
12890 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
12893 /* Failed means we can't issue and need to cancel */
12894 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12895 "2822 IOCB failed %s iotag 0x%x "
12898 piocbq
->iotag
, piocbq
->sli4_xritag
);
12899 list_add_tail(&piocbq
->list
, &completions
);
12901 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12904 /* Cancel all the IOCBs that cannot be issued */
12905 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
12906 IOERR_SLI_ABORTED
);
12908 return pring
->txq_cnt
;