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
:
1690 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
1691 * @phba: Pointer to HBA context object.
1692 * @pmboxq: Pointer to mailbox command.
1694 * This is completion handler function for mailbox commands issued from
1695 * lpfc_sli_issue_mbox_wait function. This function is called by the
1696 * mailbox event handler function with no lock held. This function
1697 * will wake up thread waiting on the wait queue pointed by context1
1701 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
1703 wait_queue_head_t
*pdone_q
;
1704 unsigned long drvr_flag
;
1707 * If pdone_q is empty, the driver thread gave up waiting and
1708 * continued running.
1710 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
1711 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
1712 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
1714 wake_up_interruptible(pdone_q
);
1715 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
1721 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
1722 * @phba: Pointer to HBA context object.
1723 * @pmb: Pointer to mailbox object.
1725 * This function is the default mailbox completion handler. It
1726 * frees the memory resources associated with the completed mailbox
1727 * command. If the completed command is a REG_LOGIN mailbox command,
1728 * this function will issue a UREG_LOGIN to re-claim the RPI.
1731 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
1733 struct lpfc_dmabuf
*mp
;
1736 struct lpfc_vport
*vport
= pmb
->vport
;
1738 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
1741 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
1745 if ((pmb
->u
.mb
.mbxCommand
== MBX_UNREG_LOGIN
) &&
1746 (phba
->sli_rev
== LPFC_SLI_REV4
))
1747 lpfc_sli4_free_rpi(phba
, pmb
->u
.mb
.un
.varUnregLogin
.rpi
);
1750 * If a REG_LOGIN succeeded after node is destroyed or node
1751 * is in re-discovery driver need to cleanup the RPI.
1753 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1754 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
1755 !pmb
->u
.mb
.mbxStatus
) {
1756 rpi
= pmb
->u
.mb
.un
.varWords
[0];
1757 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
- phba
->vpi_base
;
1758 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
1759 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1760 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1761 if (rc
!= MBX_NOT_FINISHED
)
1765 /* Unreg VPI, if the REG_VPI succeed after VLink failure */
1766 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
1767 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
1768 !pmb
->u
.mb
.mbxStatus
) {
1769 lpfc_unreg_vpi(phba
, pmb
->u
.mb
.un
.varRegVpi
.vpi
, pmb
);
1771 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
1772 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1773 if (rc
!= MBX_NOT_FINISHED
)
1777 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
1778 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
1780 mempool_free(pmb
, phba
->mbox_mem_pool
);
1784 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
1785 * @phba: Pointer to HBA context object.
1787 * This function is called with no lock held. This function processes all
1788 * the completed mailbox commands and gives it to upper layers. The interrupt
1789 * service routine processes mailbox completion interrupt and adds completed
1790 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
1791 * Worker thread call lpfc_sli_handle_mb_event, which will return the
1792 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
1793 * function returns the mailbox commands to the upper layer by calling the
1794 * completion handler function of each mailbox.
1797 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
1804 phba
->sli
.slistat
.mbox_event
++;
1806 /* Get all completed mailboxe buffers into the cmplq */
1807 spin_lock_irq(&phba
->hbalock
);
1808 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
1809 spin_unlock_irq(&phba
->hbalock
);
1811 /* Get a Mailbox buffer to setup mailbox commands for callback */
1813 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
1819 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
1821 lpfc_debugfs_disc_trc(pmb
->vport
,
1822 LPFC_DISC_TRC_MBOX_VPORT
,
1823 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
1824 (uint32_t)pmbox
->mbxCommand
,
1825 pmbox
->un
.varWords
[0],
1826 pmbox
->un
.varWords
[1]);
1829 lpfc_debugfs_disc_trc(phba
->pport
,
1831 "MBOX cmpl: cmd:x%x mb:x%x x%x",
1832 (uint32_t)pmbox
->mbxCommand
,
1833 pmbox
->un
.varWords
[0],
1834 pmbox
->un
.varWords
[1]);
1839 * It is a fatal error if unknown mbox command completion.
1841 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
1843 /* Unknown mailbox command compl */
1844 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
1845 "(%d):0323 Unknown Mailbox command "
1847 pmb
->vport
? pmb
->vport
->vpi
: 0,
1849 lpfc_sli4_mbox_opcode_get(phba
, pmb
));
1850 phba
->link_state
= LPFC_HBA_ERROR
;
1851 phba
->work_hs
= HS_FFER3
;
1852 lpfc_handle_eratt(phba
);
1856 if (pmbox
->mbxStatus
) {
1857 phba
->sli
.slistat
.mbox_stat_err
++;
1858 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
1859 /* Mbox cmd cmpl error - RETRYing */
1860 lpfc_printf_log(phba
, KERN_INFO
,
1862 "(%d):0305 Mbox cmd cmpl "
1863 "error - RETRYing Data: x%x "
1864 "(x%x) x%x x%x x%x\n",
1865 pmb
->vport
? pmb
->vport
->vpi
:0,
1867 lpfc_sli4_mbox_opcode_get(phba
,
1870 pmbox
->un
.varWords
[0],
1871 pmb
->vport
->port_state
);
1872 pmbox
->mbxStatus
= 0;
1873 pmbox
->mbxOwner
= OWN_HOST
;
1874 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
1875 if (rc
!= MBX_NOT_FINISHED
)
1880 /* Mailbox cmd <cmd> Cmpl <cmpl> */
1881 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
1882 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
1883 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
1884 pmb
->vport
? pmb
->vport
->vpi
: 0,
1886 lpfc_sli4_mbox_opcode_get(phba
, pmb
),
1888 *((uint32_t *) pmbox
),
1889 pmbox
->un
.varWords
[0],
1890 pmbox
->un
.varWords
[1],
1891 pmbox
->un
.varWords
[2],
1892 pmbox
->un
.varWords
[3],
1893 pmbox
->un
.varWords
[4],
1894 pmbox
->un
.varWords
[5],
1895 pmbox
->un
.varWords
[6],
1896 pmbox
->un
.varWords
[7]);
1899 pmb
->mbox_cmpl(phba
,pmb
);
1905 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
1906 * @phba: Pointer to HBA context object.
1907 * @pring: Pointer to driver SLI ring object.
1910 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
1911 * is set in the tag the buffer is posted for a particular exchange,
1912 * the function will return the buffer without replacing the buffer.
1913 * If the buffer is for unsolicited ELS or CT traffic, this function
1914 * returns the buffer and also posts another buffer to the firmware.
1916 static struct lpfc_dmabuf
*
1917 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
1918 struct lpfc_sli_ring
*pring
,
1921 struct hbq_dmabuf
*hbq_entry
;
1923 if (tag
& QUE_BUFTAG_BIT
)
1924 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
1925 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
1928 return &hbq_entry
->dbuf
;
1932 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
1933 * @phba: Pointer to HBA context object.
1934 * @pring: Pointer to driver SLI ring object.
1935 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
1936 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
1937 * @fch_type: the type for the first frame of the sequence.
1939 * This function is called with no lock held. This function uses the r_ctl and
1940 * type of the received sequence to find the correct callback function to call
1941 * to process the sequence.
1944 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1945 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
1950 /* unSolicited Responses */
1951 if (pring
->prt
[0].profile
) {
1952 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
1953 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
1957 /* We must search, based on rctl / type
1958 for the right routine */
1959 for (i
= 0; i
< pring
->num_mask
; i
++) {
1960 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
1961 (pring
->prt
[i
].type
== fch_type
)) {
1962 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1963 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
1964 (phba
, pring
, saveq
);
1972 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
1973 * @phba: Pointer to HBA context object.
1974 * @pring: Pointer to driver SLI ring object.
1975 * @saveq: Pointer to the unsolicited iocb.
1977 * This function is called with no lock held by the ring event handler
1978 * when there is an unsolicited iocb posted to the response ring by the
1979 * firmware. This function gets the buffer associated with the iocbs
1980 * and calls the event handler for the ring. This function handles both
1981 * qring buffers and hbq buffers.
1982 * When the function returns 1 the caller can free the iocb object otherwise
1983 * upper layer functions will free the iocb objects.
1986 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1987 struct lpfc_iocbq
*saveq
)
1991 uint32_t Rctl
, Type
;
1993 struct lpfc_iocbq
*iocbq
;
1994 struct lpfc_dmabuf
*dmzbuf
;
1997 irsp
= &(saveq
->iocb
);
1999 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2000 if (pring
->lpfc_sli_rcv_async_status
)
2001 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2003 lpfc_printf_log(phba
,
2006 "0316 Ring %d handler: unexpected "
2007 "ASYNC_STATUS iocb received evt_code "
2010 irsp
->un
.asyncstat
.evt_code
);
2014 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2015 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2016 if (irsp
->ulpBdeCount
> 0) {
2017 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2018 irsp
->un
.ulpWord
[3]);
2019 lpfc_in_buf_free(phba
, dmzbuf
);
2022 if (irsp
->ulpBdeCount
> 1) {
2023 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2024 irsp
->unsli3
.sli3Words
[3]);
2025 lpfc_in_buf_free(phba
, dmzbuf
);
2028 if (irsp
->ulpBdeCount
> 2) {
2029 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2030 irsp
->unsli3
.sli3Words
[7]);
2031 lpfc_in_buf_free(phba
, dmzbuf
);
2037 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2038 if (irsp
->ulpBdeCount
!= 0) {
2039 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2040 irsp
->un
.ulpWord
[3]);
2041 if (!saveq
->context2
)
2042 lpfc_printf_log(phba
,
2045 "0341 Ring %d Cannot find buffer for "
2046 "an unsolicited iocb. tag 0x%x\n",
2048 irsp
->un
.ulpWord
[3]);
2050 if (irsp
->ulpBdeCount
== 2) {
2051 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2052 irsp
->unsli3
.sli3Words
[7]);
2053 if (!saveq
->context3
)
2054 lpfc_printf_log(phba
,
2057 "0342 Ring %d Cannot find buffer for an"
2058 " unsolicited iocb. tag 0x%x\n",
2060 irsp
->unsli3
.sli3Words
[7]);
2062 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2063 irsp
= &(iocbq
->iocb
);
2064 if (irsp
->ulpBdeCount
!= 0) {
2065 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2066 irsp
->un
.ulpWord
[3]);
2067 if (!iocbq
->context2
)
2068 lpfc_printf_log(phba
,
2071 "0343 Ring %d Cannot find "
2072 "buffer for an unsolicited iocb"
2073 ". tag 0x%x\n", pring
->ringno
,
2074 irsp
->un
.ulpWord
[3]);
2076 if (irsp
->ulpBdeCount
== 2) {
2077 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2078 irsp
->unsli3
.sli3Words
[7]);
2079 if (!iocbq
->context3
)
2080 lpfc_printf_log(phba
,
2083 "0344 Ring %d Cannot find "
2084 "buffer for an unsolicited "
2087 irsp
->unsli3
.sli3Words
[7]);
2091 if (irsp
->ulpBdeCount
!= 0 &&
2092 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2093 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2096 /* search continue save q for same XRI */
2097 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2098 if (iocbq
->iocb
.ulpContext
== saveq
->iocb
.ulpContext
) {
2099 list_add_tail(&saveq
->list
, &iocbq
->list
);
2105 list_add_tail(&saveq
->clist
,
2106 &pring
->iocb_continue_saveq
);
2107 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2108 list_del_init(&iocbq
->clist
);
2110 irsp
= &(saveq
->iocb
);
2114 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2115 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2116 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2117 Rctl
= FC_RCTL_ELS_REQ
;
2120 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2121 Rctl
= w5p
->hcsw
.Rctl
;
2122 Type
= w5p
->hcsw
.Type
;
2124 /* Firmware Workaround */
2125 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2126 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2127 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2128 Rctl
= FC_RCTL_ELS_REQ
;
2130 w5p
->hcsw
.Rctl
= Rctl
;
2131 w5p
->hcsw
.Type
= Type
;
2135 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2136 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2137 "0313 Ring %d handler: unexpected Rctl x%x "
2138 "Type x%x received\n",
2139 pring
->ringno
, Rctl
, Type
);
2145 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2146 * @phba: Pointer to HBA context object.
2147 * @pring: Pointer to driver SLI ring object.
2148 * @prspiocb: Pointer to response iocb object.
2150 * This function looks up the iocb_lookup table to get the command iocb
2151 * corresponding to the given response iocb using the iotag of the
2152 * response iocb. This function is called with the hbalock held.
2153 * This function returns the command iocb object if it finds the command
2154 * iocb else returns NULL.
2156 static struct lpfc_iocbq
*
2157 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2158 struct lpfc_sli_ring
*pring
,
2159 struct lpfc_iocbq
*prspiocb
)
2161 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2164 iotag
= prspiocb
->iocb
.ulpIoTag
;
2166 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2167 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2168 list_del_init(&cmd_iocb
->list
);
2169 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2170 pring
->txcmplq_cnt
--;
2171 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2176 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2177 "0317 iotag x%x is out off "
2178 "range: max iotag x%x wd0 x%x\n",
2179 iotag
, phba
->sli
.last_iotag
,
2180 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2185 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2186 * @phba: Pointer to HBA context object.
2187 * @pring: Pointer to driver SLI ring object.
2190 * This function looks up the iocb_lookup table to get the command iocb
2191 * corresponding to the given iotag. This function is called with the
2193 * This function returns the command iocb object if it finds the command
2194 * iocb else returns NULL.
2196 static struct lpfc_iocbq
*
2197 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2198 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2200 struct lpfc_iocbq
*cmd_iocb
;
2202 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2203 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2204 list_del_init(&cmd_iocb
->list
);
2205 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2206 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2207 pring
->txcmplq_cnt
--;
2212 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2213 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2214 iotag
, phba
->sli
.last_iotag
);
2219 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2220 * @phba: Pointer to HBA context object.
2221 * @pring: Pointer to driver SLI ring object.
2222 * @saveq: Pointer to the response iocb to be processed.
2224 * This function is called by the ring event handler for non-fcp
2225 * rings when there is a new response iocb in the response ring.
2226 * The caller is not required to hold any locks. This function
2227 * gets the command iocb associated with the response iocb and
2228 * calls the completion handler for the command iocb. If there
2229 * is no completion handler, the function will free the resources
2230 * associated with command iocb. If the response iocb is for
2231 * an already aborted command iocb, the status of the completion
2232 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2233 * This function always returns 1.
2236 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2237 struct lpfc_iocbq
*saveq
)
2239 struct lpfc_iocbq
*cmdiocbp
;
2241 unsigned long iflag
;
2243 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2244 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2245 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2246 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2249 if (cmdiocbp
->iocb_cmpl
) {
2251 * If an ELS command failed send an event to mgmt
2254 if (saveq
->iocb
.ulpStatus
&&
2255 (pring
->ringno
== LPFC_ELS_RING
) &&
2256 (cmdiocbp
->iocb
.ulpCommand
==
2257 CMD_ELS_REQUEST64_CR
))
2258 lpfc_send_els_failure_event(phba
,
2262 * Post all ELS completions to the worker thread.
2263 * All other are passed to the completion callback.
2265 if (pring
->ringno
== LPFC_ELS_RING
) {
2266 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2267 (cmdiocbp
->iocb_flag
&
2268 LPFC_DRIVER_ABORTED
)) {
2269 spin_lock_irqsave(&phba
->hbalock
,
2271 cmdiocbp
->iocb_flag
&=
2272 ~LPFC_DRIVER_ABORTED
;
2273 spin_unlock_irqrestore(&phba
->hbalock
,
2275 saveq
->iocb
.ulpStatus
=
2276 IOSTAT_LOCAL_REJECT
;
2277 saveq
->iocb
.un
.ulpWord
[4] =
2280 /* Firmware could still be in progress
2281 * of DMAing payload, so don't free data
2282 * buffer till after a hbeat.
2284 spin_lock_irqsave(&phba
->hbalock
,
2286 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2287 spin_unlock_irqrestore(&phba
->hbalock
,
2290 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2291 if (saveq
->iocb_flag
&
2292 LPFC_EXCHANGE_BUSY
) {
2293 /* Set cmdiocb flag for the
2294 * exchange busy so sgl (xri)
2295 * will not be released until
2296 * the abort xri is received
2300 &phba
->hbalock
, iflag
);
2301 cmdiocbp
->iocb_flag
|=
2303 spin_unlock_irqrestore(
2304 &phba
->hbalock
, iflag
);
2306 if (cmdiocbp
->iocb_flag
&
2307 LPFC_DRIVER_ABORTED
) {
2309 * Clear LPFC_DRIVER_ABORTED
2310 * bit in case it was driver
2314 &phba
->hbalock
, iflag
);
2315 cmdiocbp
->iocb_flag
&=
2316 ~LPFC_DRIVER_ABORTED
;
2317 spin_unlock_irqrestore(
2318 &phba
->hbalock
, iflag
);
2319 cmdiocbp
->iocb
.ulpStatus
=
2320 IOSTAT_LOCAL_REJECT
;
2321 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2322 IOERR_ABORT_REQUESTED
;
2324 * For SLI4, irsiocb contains
2325 * NO_XRI in sli_xritag, it
2326 * shall not affect releasing
2327 * sgl (xri) process.
2329 saveq
->iocb
.ulpStatus
=
2330 IOSTAT_LOCAL_REJECT
;
2331 saveq
->iocb
.un
.ulpWord
[4] =
2334 &phba
->hbalock
, iflag
);
2336 LPFC_DELAY_MEM_FREE
;
2337 spin_unlock_irqrestore(
2338 &phba
->hbalock
, iflag
);
2342 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2344 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2347 * Unknown initiating command based on the response iotag.
2348 * This could be the case on the ELS ring because of
2351 if (pring
->ringno
!= LPFC_ELS_RING
) {
2353 * Ring <ringno> handler: unexpected completion IoTag
2356 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2357 "0322 Ring %d handler: "
2358 "unexpected completion IoTag x%x "
2359 "Data: x%x x%x x%x x%x\n",
2361 saveq
->iocb
.ulpIoTag
,
2362 saveq
->iocb
.ulpStatus
,
2363 saveq
->iocb
.un
.ulpWord
[4],
2364 saveq
->iocb
.ulpCommand
,
2365 saveq
->iocb
.ulpContext
);
2373 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2374 * @phba: Pointer to HBA context object.
2375 * @pring: Pointer to driver SLI ring object.
2377 * This function is called from the iocb ring event handlers when
2378 * put pointer is ahead of the get pointer for a ring. This function signal
2379 * an error attention condition to the worker thread and the worker
2380 * thread will transition the HBA to offline state.
2383 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2385 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2387 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2388 * rsp ring <portRspMax>
2390 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2391 "0312 Ring %d handler: portRspPut %d "
2392 "is bigger than rsp ring %d\n",
2393 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2396 phba
->link_state
= LPFC_HBA_ERROR
;
2399 * All error attention handlers are posted to
2402 phba
->work_ha
|= HA_ERATT
;
2403 phba
->work_hs
= HS_FFER3
;
2405 lpfc_worker_wake_up(phba
);
2411 * lpfc_poll_eratt - Error attention polling timer timeout handler
2412 * @ptr: Pointer to address of HBA context object.
2414 * This function is invoked by the Error Attention polling timer when the
2415 * timer times out. It will check the SLI Error Attention register for
2416 * possible attention events. If so, it will post an Error Attention event
2417 * and wake up worker thread to process it. Otherwise, it will set up the
2418 * Error Attention polling timer for the next poll.
2420 void lpfc_poll_eratt(unsigned long ptr
)
2422 struct lpfc_hba
*phba
;
2425 phba
= (struct lpfc_hba
*)ptr
;
2427 /* Check chip HA register for error event */
2428 eratt
= lpfc_sli_check_eratt(phba
);
2431 /* Tell the worker thread there is work to do */
2432 lpfc_worker_wake_up(phba
);
2434 /* Restart the timer for next eratt poll */
2435 mod_timer(&phba
->eratt_poll
, jiffies
+
2436 HZ
* LPFC_ERATT_POLL_INTERVAL
);
2442 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2443 * @phba: Pointer to HBA context object.
2444 * @pring: Pointer to driver SLI ring object.
2445 * @mask: Host attention register mask for this ring.
2447 * This function is called from the interrupt context when there is a ring
2448 * event for the fcp ring. The caller does not hold any lock.
2449 * The function processes each response iocb in the response ring until it
2450 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2451 * LE bit set. The function will call the completion handler of the command iocb
2452 * if the response iocb indicates a completion for a command iocb or it is
2453 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2454 * function if this is an unsolicited iocb.
2455 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2456 * to check it explicitly.
2459 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2460 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2462 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2463 IOCB_t
*irsp
= NULL
;
2464 IOCB_t
*entry
= NULL
;
2465 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2466 struct lpfc_iocbq rspiocbq
;
2468 uint32_t portRspPut
, portRspMax
;
2470 lpfc_iocb_type type
;
2471 unsigned long iflag
;
2472 uint32_t rsp_cmpl
= 0;
2474 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2475 pring
->stats
.iocb_event
++;
2478 * The next available response entry should never exceed the maximum
2479 * entries. If it does, treat it as an adapter hardware error.
2481 portRspMax
= pring
->numRiocb
;
2482 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2483 if (unlikely(portRspPut
>= portRspMax
)) {
2484 lpfc_sli_rsp_pointers_error(phba
, pring
);
2485 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2488 if (phba
->fcp_ring_in_use
) {
2489 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2492 phba
->fcp_ring_in_use
= 1;
2495 while (pring
->rspidx
!= portRspPut
) {
2497 * Fetch an entry off the ring and copy it into a local data
2498 * structure. The copy involves a byte-swap since the
2499 * network byte order and pci byte orders are different.
2501 entry
= lpfc_resp_iocb(phba
, pring
);
2502 phba
->last_completion_time
= jiffies
;
2504 if (++pring
->rspidx
>= portRspMax
)
2507 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2508 (uint32_t *) &rspiocbq
.iocb
,
2509 phba
->iocb_rsp_size
);
2510 INIT_LIST_HEAD(&(rspiocbq
.list
));
2511 irsp
= &rspiocbq
.iocb
;
2513 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2514 pring
->stats
.iocb_rsp
++;
2517 if (unlikely(irsp
->ulpStatus
)) {
2519 * If resource errors reported from HBA, reduce
2520 * queuedepths of the SCSI device.
2522 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2523 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2524 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2525 phba
->lpfc_rampdown_queue_depth(phba
);
2526 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2529 /* Rsp ring <ringno> error: IOCB */
2530 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2531 "0336 Rsp Ring %d error: IOCB Data: "
2532 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2534 irsp
->un
.ulpWord
[0],
2535 irsp
->un
.ulpWord
[1],
2536 irsp
->un
.ulpWord
[2],
2537 irsp
->un
.ulpWord
[3],
2538 irsp
->un
.ulpWord
[4],
2539 irsp
->un
.ulpWord
[5],
2540 *(uint32_t *)&irsp
->un1
,
2541 *((uint32_t *)&irsp
->un1
+ 1));
2545 case LPFC_ABORT_IOCB
:
2548 * Idle exchange closed via ABTS from port. No iocb
2549 * resources need to be recovered.
2551 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
2552 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2553 "0333 IOCB cmd 0x%x"
2554 " processed. Skipping"
2560 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
2562 if (unlikely(!cmdiocbq
))
2564 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
2565 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
2566 if (cmdiocbq
->iocb_cmpl
) {
2567 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2568 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
2570 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2573 case LPFC_UNSOL_IOCB
:
2574 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2575 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
2576 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2579 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2580 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2581 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2582 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
2584 dev_warn(&((phba
->pcidev
)->dev
),
2586 phba
->brd_no
, adaptermsg
);
2588 /* Unknown IOCB command */
2589 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2590 "0334 Unknown IOCB command "
2591 "Data: x%x, x%x x%x x%x x%x\n",
2592 type
, irsp
->ulpCommand
,
2601 * The response IOCB has been processed. Update the ring
2602 * pointer in SLIM. If the port response put pointer has not
2603 * been updated, sync the pgp->rspPutInx and fetch the new port
2604 * response put pointer.
2606 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2608 if (pring
->rspidx
== portRspPut
)
2609 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2612 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
2613 pring
->stats
.iocb_rsp_full
++;
2614 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2615 writel(status
, phba
->CAregaddr
);
2616 readl(phba
->CAregaddr
);
2618 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2619 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2620 pring
->stats
.iocb_cmd_empty
++;
2622 /* Force update of the local copy of cmdGetInx */
2623 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2624 lpfc_sli_resume_iocb(phba
, pring
);
2626 if ((pring
->lpfc_sli_cmd_available
))
2627 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2631 phba
->fcp_ring_in_use
= 0;
2632 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2637 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
2638 * @phba: Pointer to HBA context object.
2639 * @pring: Pointer to driver SLI ring object.
2640 * @rspiocbp: Pointer to driver response IOCB object.
2642 * This function is called from the worker thread when there is a slow-path
2643 * response IOCB to process. This function chains all the response iocbs until
2644 * seeing the iocb with the LE bit set. The function will call
2645 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
2646 * completion of a command iocb. The function will call the
2647 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
2648 * The function frees the resources or calls the completion handler if this
2649 * iocb is an abort completion. The function returns NULL when the response
2650 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
2651 * this function shall chain the iocb on to the iocb_continueq and return the
2652 * response iocb passed in.
2654 static struct lpfc_iocbq
*
2655 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2656 struct lpfc_iocbq
*rspiocbp
)
2658 struct lpfc_iocbq
*saveq
;
2659 struct lpfc_iocbq
*cmdiocbp
;
2660 struct lpfc_iocbq
*next_iocb
;
2661 IOCB_t
*irsp
= NULL
;
2662 uint32_t free_saveq
;
2663 uint8_t iocb_cmd_type
;
2664 lpfc_iocb_type type
;
2665 unsigned long iflag
;
2668 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2669 /* First add the response iocb to the countinueq list */
2670 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
2671 pring
->iocb_continueq_cnt
++;
2673 /* Now, determine whetehr the list is completed for processing */
2674 irsp
= &rspiocbp
->iocb
;
2677 * By default, the driver expects to free all resources
2678 * associated with this iocb completion.
2681 saveq
= list_get_first(&pring
->iocb_continueq
,
2682 struct lpfc_iocbq
, list
);
2683 irsp
= &(saveq
->iocb
);
2684 list_del_init(&pring
->iocb_continueq
);
2685 pring
->iocb_continueq_cnt
= 0;
2687 pring
->stats
.iocb_rsp
++;
2690 * If resource errors reported from HBA, reduce
2691 * queuedepths of the SCSI device.
2693 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2694 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2695 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2696 phba
->lpfc_rampdown_queue_depth(phba
);
2697 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2700 if (irsp
->ulpStatus
) {
2701 /* Rsp ring <ringno> error: IOCB */
2702 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2703 "0328 Rsp Ring %d error: "
2708 "x%x x%x x%x x%x\n",
2710 irsp
->un
.ulpWord
[0],
2711 irsp
->un
.ulpWord
[1],
2712 irsp
->un
.ulpWord
[2],
2713 irsp
->un
.ulpWord
[3],
2714 irsp
->un
.ulpWord
[4],
2715 irsp
->un
.ulpWord
[5],
2716 *(((uint32_t *) irsp
) + 6),
2717 *(((uint32_t *) irsp
) + 7),
2718 *(((uint32_t *) irsp
) + 8),
2719 *(((uint32_t *) irsp
) + 9),
2720 *(((uint32_t *) irsp
) + 10),
2721 *(((uint32_t *) irsp
) + 11),
2722 *(((uint32_t *) irsp
) + 12),
2723 *(((uint32_t *) irsp
) + 13),
2724 *(((uint32_t *) irsp
) + 14),
2725 *(((uint32_t *) irsp
) + 15));
2729 * Fetch the IOCB command type and call the correct completion
2730 * routine. Solicited and Unsolicited IOCBs on the ELS ring
2731 * get freed back to the lpfc_iocb_list by the discovery
2734 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
2735 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
2738 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2739 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
2740 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2743 case LPFC_UNSOL_IOCB
:
2744 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2745 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
2746 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2751 case LPFC_ABORT_IOCB
:
2753 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
2754 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
2757 /* Call the specified completion routine */
2758 if (cmdiocbp
->iocb_cmpl
) {
2759 spin_unlock_irqrestore(&phba
->hbalock
,
2761 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
2763 spin_lock_irqsave(&phba
->hbalock
,
2766 __lpfc_sli_release_iocbq(phba
,
2771 case LPFC_UNKNOWN_IOCB
:
2772 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2773 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2774 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2775 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
2777 dev_warn(&((phba
->pcidev
)->dev
),
2779 phba
->brd_no
, adaptermsg
);
2781 /* Unknown IOCB command */
2782 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2783 "0335 Unknown IOCB "
2784 "command Data: x%x "
2795 list_for_each_entry_safe(rspiocbp
, next_iocb
,
2796 &saveq
->list
, list
) {
2797 list_del(&rspiocbp
->list
);
2798 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
2800 __lpfc_sli_release_iocbq(phba
, saveq
);
2804 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2809 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
2810 * @phba: Pointer to HBA context object.
2811 * @pring: Pointer to driver SLI ring object.
2812 * @mask: Host attention register mask for this ring.
2814 * This routine wraps the actual slow_ring event process routine from the
2815 * API jump table function pointer from the lpfc_hba struct.
2818 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
2819 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2821 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
2825 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
2826 * @phba: Pointer to HBA context object.
2827 * @pring: Pointer to driver SLI ring object.
2828 * @mask: Host attention register mask for this ring.
2830 * This function is called from the worker thread when there is a ring event
2831 * for non-fcp rings. The caller does not hold any lock. The function will
2832 * remove each response iocb in the response ring and calls the handle
2833 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2836 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
2837 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2839 struct lpfc_pgp
*pgp
;
2841 IOCB_t
*irsp
= NULL
;
2842 struct lpfc_iocbq
*rspiocbp
= NULL
;
2843 uint32_t portRspPut
, portRspMax
;
2844 unsigned long iflag
;
2847 pgp
= &phba
->port_gp
[pring
->ringno
];
2848 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2849 pring
->stats
.iocb_event
++;
2852 * The next available response entry should never exceed the maximum
2853 * entries. If it does, treat it as an adapter hardware error.
2855 portRspMax
= pring
->numRiocb
;
2856 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2857 if (portRspPut
>= portRspMax
) {
2859 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2860 * rsp ring <portRspMax>
2862 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2863 "0303 Ring %d handler: portRspPut %d "
2864 "is bigger than rsp ring %d\n",
2865 pring
->ringno
, portRspPut
, portRspMax
);
2867 phba
->link_state
= LPFC_HBA_ERROR
;
2868 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2870 phba
->work_hs
= HS_FFER3
;
2871 lpfc_handle_eratt(phba
);
2877 while (pring
->rspidx
!= portRspPut
) {
2879 * Build a completion list and call the appropriate handler.
2880 * The process is to get the next available response iocb, get
2881 * a free iocb from the list, copy the response data into the
2882 * free iocb, insert to the continuation list, and update the
2883 * next response index to slim. This process makes response
2884 * iocb's in the ring available to DMA as fast as possible but
2885 * pays a penalty for a copy operation. Since the iocb is
2886 * only 32 bytes, this penalty is considered small relative to
2887 * the PCI reads for register values and a slim write. When
2888 * the ulpLe field is set, the entire Command has been
2891 entry
= lpfc_resp_iocb(phba
, pring
);
2893 phba
->last_completion_time
= jiffies
;
2894 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
2895 if (rspiocbp
== NULL
) {
2896 printk(KERN_ERR
"%s: out of buffers! Failing "
2897 "completion.\n", __func__
);
2901 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
2902 phba
->iocb_rsp_size
);
2903 irsp
= &rspiocbp
->iocb
;
2905 if (++pring
->rspidx
>= portRspMax
)
2908 if (pring
->ringno
== LPFC_ELS_RING
) {
2909 lpfc_debugfs_slow_ring_trc(phba
,
2910 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
2911 *(((uint32_t *) irsp
) + 4),
2912 *(((uint32_t *) irsp
) + 6),
2913 *(((uint32_t *) irsp
) + 7));
2916 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2918 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2919 /* Handle the response IOCB */
2920 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
2921 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2924 * If the port response put pointer has not been updated, sync
2925 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
2926 * response put pointer.
2928 if (pring
->rspidx
== portRspPut
) {
2929 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2931 } /* while (pring->rspidx != portRspPut) */
2933 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
2934 /* At least one response entry has been freed */
2935 pring
->stats
.iocb_rsp_full
++;
2936 /* SET RxRE_RSP in Chip Att register */
2937 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2938 writel(status
, phba
->CAregaddr
);
2939 readl(phba
->CAregaddr
); /* flush */
2941 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
2942 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
2943 pring
->stats
.iocb_cmd_empty
++;
2945 /* Force update of the local copy of cmdGetInx */
2946 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
2947 lpfc_sli_resume_iocb(phba
, pring
);
2949 if ((pring
->lpfc_sli_cmd_available
))
2950 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
2954 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2959 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
2960 * @phba: Pointer to HBA context object.
2961 * @pring: Pointer to driver SLI ring object.
2962 * @mask: Host attention register mask for this ring.
2964 * This function is called from the worker thread when there is a pending
2965 * ELS response iocb on the driver internal slow-path response iocb worker
2966 * queue. The caller does not hold any lock. The function will remove each
2967 * response iocb from the response worker queue and calls the handle
2968 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
2971 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
2972 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2974 struct lpfc_iocbq
*irspiocbq
;
2975 struct hbq_dmabuf
*dmabuf
;
2976 struct lpfc_cq_event
*cq_event
;
2977 unsigned long iflag
;
2979 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2980 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
2981 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2982 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
2983 /* Get the response iocb from the head of work queue */
2984 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2985 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
2986 cq_event
, struct lpfc_cq_event
, list
);
2987 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2989 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
2990 case CQE_CODE_COMPL_WQE
:
2991 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
2993 /* Translate ELS WCQE to response IOCBQ */
2994 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
2997 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3000 case CQE_CODE_RECEIVE
:
3001 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3003 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3012 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3013 * @phba: Pointer to HBA context object.
3014 * @pring: Pointer to driver SLI ring object.
3016 * This function aborts all iocbs in the given ring and frees all the iocb
3017 * objects in txq. This function issues an abort iocb for all the iocb commands
3018 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3019 * the return of this function. The caller is not required to hold any locks.
3022 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3024 LIST_HEAD(completions
);
3025 struct lpfc_iocbq
*iocb
, *next_iocb
;
3027 if (pring
->ringno
== LPFC_ELS_RING
) {
3028 lpfc_fabric_abort_hba(phba
);
3031 /* Error everything on txq and txcmplq
3034 spin_lock_irq(&phba
->hbalock
);
3035 list_splice_init(&pring
->txq
, &completions
);
3038 /* Next issue ABTS for everything on the txcmplq */
3039 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3040 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3042 spin_unlock_irq(&phba
->hbalock
);
3044 /* Cancel all the IOCBs from the completions list */
3045 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3050 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3051 * @phba: Pointer to HBA context object.
3053 * This function flushes all iocbs in the fcp ring and frees all the iocb
3054 * objects in txq and txcmplq. This function will not issue abort iocbs
3055 * for all the iocb commands in txcmplq, they will just be returned with
3056 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3057 * slot has been permanently disabled.
3060 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3064 struct lpfc_sli
*psli
= &phba
->sli
;
3065 struct lpfc_sli_ring
*pring
;
3067 /* Currently, only one fcp ring */
3068 pring
= &psli
->ring
[psli
->fcp_ring
];
3070 spin_lock_irq(&phba
->hbalock
);
3071 /* Retrieve everything on txq */
3072 list_splice_init(&pring
->txq
, &txq
);
3075 /* Retrieve everything on the txcmplq */
3076 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3077 pring
->txcmplq_cnt
= 0;
3078 spin_unlock_irq(&phba
->hbalock
);
3081 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3084 /* Flush the txcmpq */
3085 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3090 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3091 * @phba: Pointer to HBA context object.
3092 * @mask: Bit mask to be checked.
3094 * This function reads the host status register and compares
3095 * with the provided bit mask to check if HBA completed
3096 * the restart. This function will wait in a loop for the
3097 * HBA to complete restart. If the HBA does not restart within
3098 * 15 iterations, the function will reset the HBA again. The
3099 * function returns 1 when HBA fail to restart otherwise returns
3103 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3109 /* Read the HBA Host Status Register */
3110 status
= readl(phba
->HSregaddr
);
3113 * Check status register every 100ms for 5 retries, then every
3114 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3115 * every 2.5 sec for 4.
3116 * Break our of the loop if errors occurred during init.
3118 while (((status
& mask
) != mask
) &&
3119 !(status
& HS_FFERM
) &&
3131 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3132 lpfc_sli_brdrestart(phba
);
3134 /* Read the HBA Host Status Register */
3135 status
= readl(phba
->HSregaddr
);
3138 /* Check to see if any errors occurred during init */
3139 if ((status
& HS_FFERM
) || (i
>= 20)) {
3140 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3141 "2751 Adapter failed to restart, "
3142 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3144 readl(phba
->MBslimaddr
+ 0xa8),
3145 readl(phba
->MBslimaddr
+ 0xac));
3146 phba
->link_state
= LPFC_HBA_ERROR
;
3154 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3155 * @phba: Pointer to HBA context object.
3156 * @mask: Bit mask to be checked.
3158 * This function checks the host status register to check if HBA is
3159 * ready. This function will wait in a loop for the HBA to be ready
3160 * If the HBA is not ready , the function will will reset the HBA PCI
3161 * function again. The function returns 1 when HBA fail to be ready
3162 * otherwise returns zero.
3165 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3170 /* Read the HBA Host Status Register */
3171 status
= lpfc_sli4_post_status_check(phba
);
3174 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3175 lpfc_sli_brdrestart(phba
);
3176 status
= lpfc_sli4_post_status_check(phba
);
3179 /* Check to see if any errors occurred during init */
3181 phba
->link_state
= LPFC_HBA_ERROR
;
3184 phba
->sli4_hba
.intr_enable
= 0;
3190 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3191 * @phba: Pointer to HBA context object.
3192 * @mask: Bit mask to be checked.
3194 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3195 * from the API jump table function pointer from the lpfc_hba struct.
3198 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3200 return phba
->lpfc_sli_brdready(phba
, mask
);
3203 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3206 * lpfc_reset_barrier - Make HBA ready for HBA reset
3207 * @phba: Pointer to HBA context object.
3209 * This function is called before resetting an HBA. This
3210 * function requests HBA to quiesce DMAs before a reset.
3212 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3214 uint32_t __iomem
*resp_buf
;
3215 uint32_t __iomem
*mbox_buf
;
3216 volatile uint32_t mbox
;
3221 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3222 if (hdrtype
!= 0x80 ||
3223 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3224 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3228 * Tell the other part of the chip to suspend temporarily all
3231 resp_buf
= phba
->MBslimaddr
;
3233 /* Disable the error attention */
3234 hc_copy
= readl(phba
->HCregaddr
);
3235 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3236 readl(phba
->HCregaddr
); /* flush */
3237 phba
->link_flag
|= LS_IGNORE_ERATT
;
3239 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3240 /* Clear Chip error bit */
3241 writel(HA_ERATT
, phba
->HAregaddr
);
3242 phba
->pport
->stopped
= 1;
3246 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3247 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3249 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3250 mbox_buf
= phba
->MBslimaddr
;
3251 writel(mbox
, mbox_buf
);
3254 readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
) && i
< 50; i
++)
3257 if (readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
)) {
3258 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3259 phba
->pport
->stopped
)
3265 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3266 for (i
= 0; readl(resp_buf
) != mbox
&& i
< 500; i
++)
3271 while (!(readl(phba
->HAregaddr
) & HA_ERATT
) && ++i
< 500)
3274 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3275 writel(HA_ERATT
, phba
->HAregaddr
);
3276 phba
->pport
->stopped
= 1;
3280 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3281 writel(hc_copy
, phba
->HCregaddr
);
3282 readl(phba
->HCregaddr
); /* flush */
3286 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3287 * @phba: Pointer to HBA context object.
3289 * This function issues a kill_board mailbox command and waits for
3290 * the error attention interrupt. This function is called for stopping
3291 * the firmware processing. The caller is not required to hold any
3292 * locks. This function calls lpfc_hba_down_post function to free
3293 * any pending commands after the kill. The function will return 1 when it
3294 * fails to kill the board else will return 0.
3297 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3299 struct lpfc_sli
*psli
;
3309 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3310 "0329 Kill HBA Data: x%x x%x\n",
3311 phba
->pport
->port_state
, psli
->sli_flag
);
3313 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3317 /* Disable the error attention */
3318 spin_lock_irq(&phba
->hbalock
);
3319 status
= readl(phba
->HCregaddr
);
3320 status
&= ~HC_ERINT_ENA
;
3321 writel(status
, phba
->HCregaddr
);
3322 readl(phba
->HCregaddr
); /* flush */
3323 phba
->link_flag
|= LS_IGNORE_ERATT
;
3324 spin_unlock_irq(&phba
->hbalock
);
3326 lpfc_kill_board(phba
, pmb
);
3327 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3328 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3330 if (retval
!= MBX_SUCCESS
) {
3331 if (retval
!= MBX_BUSY
)
3332 mempool_free(pmb
, phba
->mbox_mem_pool
);
3333 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3334 "2752 KILL_BOARD command failed retval %d\n",
3336 spin_lock_irq(&phba
->hbalock
);
3337 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3338 spin_unlock_irq(&phba
->hbalock
);
3342 spin_lock_irq(&phba
->hbalock
);
3343 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3344 spin_unlock_irq(&phba
->hbalock
);
3346 mempool_free(pmb
, phba
->mbox_mem_pool
);
3348 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3349 * attention every 100ms for 3 seconds. If we don't get ERATT after
3350 * 3 seconds we still set HBA_ERROR state because the status of the
3351 * board is now undefined.
3353 ha_copy
= readl(phba
->HAregaddr
);
3355 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3357 ha_copy
= readl(phba
->HAregaddr
);
3360 del_timer_sync(&psli
->mbox_tmo
);
3361 if (ha_copy
& HA_ERATT
) {
3362 writel(HA_ERATT
, phba
->HAregaddr
);
3363 phba
->pport
->stopped
= 1;
3365 spin_lock_irq(&phba
->hbalock
);
3366 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3367 psli
->mbox_active
= NULL
;
3368 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3369 spin_unlock_irq(&phba
->hbalock
);
3371 lpfc_hba_down_post(phba
);
3372 phba
->link_state
= LPFC_HBA_ERROR
;
3374 return ha_copy
& HA_ERATT
? 0 : 1;
3378 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3379 * @phba: Pointer to HBA context object.
3381 * This function resets the HBA by writing HC_INITFF to the control
3382 * register. After the HBA resets, this function resets all the iocb ring
3383 * indices. This function disables PCI layer parity checking during
3385 * This function returns 0 always.
3386 * The caller is not required to hold any locks.
3389 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3391 struct lpfc_sli
*psli
;
3392 struct lpfc_sli_ring
*pring
;
3399 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3400 "0325 Reset HBA Data: x%x x%x\n",
3401 phba
->pport
->port_state
, psli
->sli_flag
);
3403 /* perform board reset */
3404 phba
->fc_eventTag
= 0;
3405 phba
->link_events
= 0;
3406 phba
->pport
->fc_myDID
= 0;
3407 phba
->pport
->fc_prevDID
= 0;
3409 /* Turn off parity checking and serr during the physical reset */
3410 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3411 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3413 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3415 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3417 /* Now toggle INITFF bit in the Host Control Register */
3418 writel(HC_INITFF
, phba
->HCregaddr
);
3420 readl(phba
->HCregaddr
); /* flush */
3421 writel(0, phba
->HCregaddr
);
3422 readl(phba
->HCregaddr
); /* flush */
3424 /* Restore PCI cmd register */
3425 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3427 /* Initialize relevant SLI info */
3428 for (i
= 0; i
< psli
->num_rings
; i
++) {
3429 pring
= &psli
->ring
[i
];
3432 pring
->next_cmdidx
= 0;
3433 pring
->local_getidx
= 0;
3435 pring
->missbufcnt
= 0;
3438 phba
->link_state
= LPFC_WARM_START
;
3443 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3444 * @phba: Pointer to HBA context object.
3446 * This function resets a SLI4 HBA. This function disables PCI layer parity
3447 * checking during resets the device. The caller is not required to hold
3450 * This function returns 0 always.
3453 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3455 struct lpfc_sli
*psli
= &phba
->sli
;
3460 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3461 "0295 Reset HBA Data: x%x x%x\n",
3462 phba
->pport
->port_state
, psli
->sli_flag
);
3464 /* perform board reset */
3465 phba
->fc_eventTag
= 0;
3466 phba
->link_events
= 0;
3467 phba
->pport
->fc_myDID
= 0;
3468 phba
->pport
->fc_prevDID
= 0;
3470 /* Turn off parity checking and serr during the physical reset */
3471 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3472 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3474 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3476 spin_lock_irq(&phba
->hbalock
);
3477 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3478 phba
->fcf
.fcf_flag
= 0;
3479 /* Clean up the child queue list for the CQs */
3480 list_del_init(&phba
->sli4_hba
.mbx_wq
->list
);
3481 list_del_init(&phba
->sli4_hba
.els_wq
->list
);
3482 list_del_init(&phba
->sli4_hba
.hdr_rq
->list
);
3483 list_del_init(&phba
->sli4_hba
.dat_rq
->list
);
3484 list_del_init(&phba
->sli4_hba
.mbx_cq
->list
);
3485 list_del_init(&phba
->sli4_hba
.els_cq
->list
);
3486 for (qindx
= 0; qindx
< phba
->cfg_fcp_wq_count
; qindx
++)
3487 list_del_init(&phba
->sli4_hba
.fcp_wq
[qindx
]->list
);
3488 for (qindx
= 0; qindx
< phba
->cfg_fcp_eq_count
; qindx
++)
3489 list_del_init(&phba
->sli4_hba
.fcp_cq
[qindx
]->list
);
3490 spin_unlock_irq(&phba
->hbalock
);
3492 /* Now physically reset the device */
3493 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3494 "0389 Performing PCI function reset!\n");
3495 /* Perform FCoE PCI function reset */
3496 lpfc_pci_function_reset(phba
);
3502 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3503 * @phba: Pointer to HBA context object.
3505 * This function is called in the SLI initialization code path to
3506 * restart the HBA. The caller is not required to hold any lock.
3507 * This function writes MBX_RESTART mailbox command to the SLIM and
3508 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3509 * function to free any pending commands. The function enables
3510 * POST only during the first initialization. The function returns zero.
3511 * The function does not guarantee completion of MBX_RESTART mailbox
3512 * command before the return of this function.
3515 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
3518 struct lpfc_sli
*psli
;
3519 volatile uint32_t word0
;
3520 void __iomem
*to_slim
;
3521 uint32_t hba_aer_enabled
;
3523 spin_lock_irq(&phba
->hbalock
);
3525 /* Take PCIe device Advanced Error Reporting (AER) state */
3526 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3531 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3532 "0337 Restart HBA Data: x%x x%x\n",
3533 phba
->pport
->port_state
, psli
->sli_flag
);
3536 mb
= (MAILBOX_t
*) &word0
;
3537 mb
->mbxCommand
= MBX_RESTART
;
3540 lpfc_reset_barrier(phba
);
3542 to_slim
= phba
->MBslimaddr
;
3543 writel(*(uint32_t *) mb
, to_slim
);
3544 readl(to_slim
); /* flush */
3546 /* Only skip post after fc_ffinit is completed */
3547 if (phba
->pport
->port_state
)
3548 word0
= 1; /* This is really setting up word1 */
3550 word0
= 0; /* This is really setting up word1 */
3551 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
3552 writel(*(uint32_t *) mb
, to_slim
);
3553 readl(to_slim
); /* flush */
3555 lpfc_sli_brdreset(phba
);
3556 phba
->pport
->stopped
= 0;
3557 phba
->link_state
= LPFC_INIT_START
;
3559 spin_unlock_irq(&phba
->hbalock
);
3561 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3562 psli
->stats_start
= get_seconds();
3564 /* Give the INITFF and Post time to settle. */
3567 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3568 if (hba_aer_enabled
)
3569 pci_disable_pcie_error_reporting(phba
->pcidev
);
3571 lpfc_hba_down_post(phba
);
3577 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3578 * @phba: Pointer to HBA context object.
3580 * This function is called in the SLI initialization code path to restart
3581 * a SLI4 HBA. The caller is not required to hold any lock.
3582 * At the end of the function, it calls lpfc_hba_down_post function to
3583 * free any pending commands.
3586 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
3588 struct lpfc_sli
*psli
= &phba
->sli
;
3589 uint32_t hba_aer_enabled
;
3592 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3593 "0296 Restart HBA Data: x%x x%x\n",
3594 phba
->pport
->port_state
, psli
->sli_flag
);
3596 /* Take PCIe device Advanced Error Reporting (AER) state */
3597 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3599 lpfc_sli4_brdreset(phba
);
3601 spin_lock_irq(&phba
->hbalock
);
3602 phba
->pport
->stopped
= 0;
3603 phba
->link_state
= LPFC_INIT_START
;
3605 spin_unlock_irq(&phba
->hbalock
);
3607 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3608 psli
->stats_start
= get_seconds();
3610 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3611 if (hba_aer_enabled
)
3612 pci_disable_pcie_error_reporting(phba
->pcidev
);
3614 lpfc_hba_down_post(phba
);
3620 * lpfc_sli_brdrestart - Wrapper func for restarting hba
3621 * @phba: Pointer to HBA context object.
3623 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
3624 * API jump table function pointer from the lpfc_hba struct.
3627 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
3629 return phba
->lpfc_sli_brdrestart(phba
);
3633 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
3634 * @phba: Pointer to HBA context object.
3636 * This function is called after a HBA restart to wait for successful
3637 * restart of the HBA. Successful restart of the HBA is indicated by
3638 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
3639 * iteration, the function will restart the HBA again. The function returns
3640 * zero if HBA successfully restarted else returns negative error code.
3643 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
3645 uint32_t status
, i
= 0;
3647 /* Read the HBA Host Status Register */
3648 status
= readl(phba
->HSregaddr
);
3650 /* Check status register to see what current state is */
3652 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
3654 /* Check every 100ms for 5 retries, then every 500ms for 5, then
3655 * every 2.5 sec for 5, then reset board and every 2.5 sec for
3659 /* Adapter failed to init, timeout, status reg
3661 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3662 "0436 Adapter failed to init, "
3663 "timeout, status reg x%x, "
3664 "FW Data: A8 x%x AC x%x\n", status
,
3665 readl(phba
->MBslimaddr
+ 0xa8),
3666 readl(phba
->MBslimaddr
+ 0xac));
3667 phba
->link_state
= LPFC_HBA_ERROR
;
3671 /* Check to see if any errors occurred during init */
3672 if (status
& HS_FFERM
) {
3673 /* ERROR: During chipset initialization */
3674 /* Adapter failed to init, chipset, status reg
3676 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3677 "0437 Adapter failed to init, "
3678 "chipset, status reg x%x, "
3679 "FW Data: A8 x%x AC x%x\n", status
,
3680 readl(phba
->MBslimaddr
+ 0xa8),
3681 readl(phba
->MBslimaddr
+ 0xac));
3682 phba
->link_state
= LPFC_HBA_ERROR
;
3688 } else if (i
<= 10) {
3696 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3697 lpfc_sli_brdrestart(phba
);
3699 /* Read the HBA Host Status Register */
3700 status
= readl(phba
->HSregaddr
);
3703 /* Check to see if any errors occurred during init */
3704 if (status
& HS_FFERM
) {
3705 /* ERROR: During chipset initialization */
3706 /* Adapter failed to init, chipset, status reg <status> */
3707 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3708 "0438 Adapter failed to init, chipset, "
3710 "FW Data: A8 x%x AC x%x\n", status
,
3711 readl(phba
->MBslimaddr
+ 0xa8),
3712 readl(phba
->MBslimaddr
+ 0xac));
3713 phba
->link_state
= LPFC_HBA_ERROR
;
3717 /* Clear all interrupt enable conditions */
3718 writel(0, phba
->HCregaddr
);
3719 readl(phba
->HCregaddr
); /* flush */
3721 /* setup host attn register */
3722 writel(0xffffffff, phba
->HAregaddr
);
3723 readl(phba
->HAregaddr
); /* flush */
3728 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
3730 * This function calculates and returns the number of HBQs required to be
3734 lpfc_sli_hbq_count(void)
3736 return ARRAY_SIZE(lpfc_hbq_defs
);
3740 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
3742 * This function adds the number of hbq entries in every HBQ to get
3743 * the total number of hbq entries required for the HBA and returns
3747 lpfc_sli_hbq_entry_count(void)
3749 int hbq_count
= lpfc_sli_hbq_count();
3753 for (i
= 0; i
< hbq_count
; ++i
)
3754 count
+= lpfc_hbq_defs
[i
]->entry_count
;
3759 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
3761 * This function calculates amount of memory required for all hbq entries
3762 * to be configured and returns the total memory required.
3765 lpfc_sli_hbq_size(void)
3767 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
3771 * lpfc_sli_hbq_setup - configure and initialize HBQs
3772 * @phba: Pointer to HBA context object.
3774 * This function is called during the SLI initialization to configure
3775 * all the HBQs and post buffers to the HBQ. The caller is not
3776 * required to hold any locks. This function will return zero if successful
3777 * else it will return negative error code.
3780 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
3782 int hbq_count
= lpfc_sli_hbq_count();
3786 uint32_t hbq_entry_index
;
3788 /* Get a Mailbox buffer to setup mailbox
3789 * commands for HBA initialization
3791 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3798 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
3799 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3800 phba
->hbq_in_use
= 1;
3802 hbq_entry_index
= 0;
3803 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
3804 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
3805 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
3806 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
3807 phba
->hbqs
[hbqno
].entry_count
=
3808 lpfc_hbq_defs
[hbqno
]->entry_count
;
3809 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
3810 hbq_entry_index
, pmb
);
3811 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
3813 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
3814 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
3815 mbxStatus <status>, ring <num> */
3817 lpfc_printf_log(phba
, KERN_ERR
,
3818 LOG_SLI
| LOG_VPORT
,
3819 "1805 Adapter failed to init. "
3820 "Data: x%x x%x x%x\n",
3822 pmbox
->mbxStatus
, hbqno
);
3824 phba
->link_state
= LPFC_HBA_ERROR
;
3825 mempool_free(pmb
, phba
->mbox_mem_pool
);
3829 phba
->hbq_count
= hbq_count
;
3831 mempool_free(pmb
, phba
->mbox_mem_pool
);
3833 /* Initially populate or replenish the HBQs */
3834 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
3835 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
3840 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
3841 * @phba: Pointer to HBA context object.
3843 * This function is called during the SLI initialization to configure
3844 * all the HBQs and post buffers to the HBQ. The caller is not
3845 * required to hold any locks. This function will return zero if successful
3846 * else it will return negative error code.
3849 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
3851 phba
->hbq_in_use
= 1;
3852 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
3853 phba
->hbq_count
= 1;
3854 /* Initially populate or replenish the HBQs */
3855 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
3860 * lpfc_sli_config_port - Issue config port mailbox command
3861 * @phba: Pointer to HBA context object.
3862 * @sli_mode: sli mode - 2/3
3864 * This function is called by the sli intialization code path
3865 * to issue config_port mailbox command. This function restarts the
3866 * HBA firmware and issues a config_port mailbox command to configure
3867 * the SLI interface in the sli mode specified by sli_mode
3868 * variable. The caller is not required to hold any locks.
3869 * The function returns 0 if successful, else returns negative error
3873 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
3876 uint32_t resetcount
= 0, rc
= 0, done
= 0;
3878 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3880 phba
->link_state
= LPFC_HBA_ERROR
;
3884 phba
->sli_rev
= sli_mode
;
3885 while (resetcount
< 2 && !done
) {
3886 spin_lock_irq(&phba
->hbalock
);
3887 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
3888 spin_unlock_irq(&phba
->hbalock
);
3889 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3890 lpfc_sli_brdrestart(phba
);
3891 rc
= lpfc_sli_chipset_init(phba
);
3895 spin_lock_irq(&phba
->hbalock
);
3896 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3897 spin_unlock_irq(&phba
->hbalock
);
3900 /* Call pre CONFIG_PORT mailbox command initialization. A
3901 * value of 0 means the call was successful. Any other
3902 * nonzero value is a failure, but if ERESTART is returned,
3903 * the driver may reset the HBA and try again.
3905 rc
= lpfc_config_port_prep(phba
);
3906 if (rc
== -ERESTART
) {
3907 phba
->link_state
= LPFC_LINK_UNKNOWN
;
3911 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
3912 lpfc_config_port(phba
, pmb
);
3913 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
3914 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
3915 LPFC_SLI3_HBQ_ENABLED
|
3916 LPFC_SLI3_CRP_ENABLED
|
3917 LPFC_SLI3_BG_ENABLED
|
3918 LPFC_SLI3_DSS_ENABLED
);
3919 if (rc
!= MBX_SUCCESS
) {
3920 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3921 "0442 Adapter failed to init, mbxCmd x%x "
3922 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
3923 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
3924 spin_lock_irq(&phba
->hbalock
);
3925 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
3926 spin_unlock_irq(&phba
->hbalock
);
3929 /* Allow asynchronous mailbox command to go through */
3930 spin_lock_irq(&phba
->hbalock
);
3931 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
3932 spin_unlock_irq(&phba
->hbalock
);
3938 goto do_prep_failed
;
3940 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
3941 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
3943 goto do_prep_failed
;
3945 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
3946 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
3947 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
3948 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
3949 phba
->max_vpi
: phba
->max_vports
;
3953 phba
->fips_level
= 0;
3954 phba
->fips_spec_rev
= 0;
3955 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
3956 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
3957 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
3958 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
3959 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3960 "2850 Security Crypto Active. FIPS x%d "
3962 phba
->fips_level
, phba
->fips_spec_rev
);
3964 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
3965 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3966 "2856 Config Port Security Crypto "
3968 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
3970 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
3971 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
3972 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
3973 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
3975 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
3976 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
3978 if (phba
->cfg_enable_bg
) {
3979 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
3980 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
3982 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3983 "0443 Adapter did not grant "
3987 phba
->hbq_get
= NULL
;
3988 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
3992 mempool_free(pmb
, phba
->mbox_mem_pool
);
3998 * lpfc_sli_hba_setup - SLI intialization function
3999 * @phba: Pointer to HBA context object.
4001 * This function is the main SLI intialization function. This function
4002 * is called by the HBA intialization code, HBA reset code and HBA
4003 * error attention handler code. Caller is not required to hold any
4004 * locks. This function issues config_port mailbox command to configure
4005 * the SLI, setup iocb rings and HBQ rings. In the end the function
4006 * calls the config_port_post function to issue init_link mailbox
4007 * command and to start the discovery. The function will return zero
4008 * if successful, else it will return negative error code.
4011 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4016 switch (lpfc_sli_mode
) {
4018 if (phba
->cfg_enable_npiv
) {
4019 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4020 "1824 NPIV enabled: Override lpfc_sli_mode "
4021 "parameter (%d) to auto (0).\n",
4031 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4032 "1819 Unrecognized lpfc_sli_mode "
4033 "parameter: %d.\n", lpfc_sli_mode
);
4038 rc
= lpfc_sli_config_port(phba
, mode
);
4040 if (rc
&& lpfc_sli_mode
== 3)
4041 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4042 "1820 Unable to select SLI-3. "
4043 "Not supported by adapter.\n");
4044 if (rc
&& mode
!= 2)
4045 rc
= lpfc_sli_config_port(phba
, 2);
4047 goto lpfc_sli_hba_setup_error
;
4049 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4050 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4051 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4053 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4054 "2709 This device supports "
4055 "Advanced Error Reporting (AER)\n");
4056 spin_lock_irq(&phba
->hbalock
);
4057 phba
->hba_flag
|= HBA_AER_ENABLED
;
4058 spin_unlock_irq(&phba
->hbalock
);
4060 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4061 "2708 This device does not support "
4062 "Advanced Error Reporting (AER)\n");
4063 phba
->cfg_aer_support
= 0;
4067 if (phba
->sli_rev
== 3) {
4068 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4069 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4071 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4072 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4073 phba
->sli3_options
= 0;
4076 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4077 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4078 phba
->sli_rev
, phba
->max_vpi
);
4079 rc
= lpfc_sli_ring_map(phba
);
4082 goto lpfc_sli_hba_setup_error
;
4085 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4086 rc
= lpfc_sli_hbq_setup(phba
);
4088 goto lpfc_sli_hba_setup_error
;
4090 spin_lock_irq(&phba
->hbalock
);
4091 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4092 spin_unlock_irq(&phba
->hbalock
);
4094 rc
= lpfc_config_port_post(phba
);
4096 goto lpfc_sli_hba_setup_error
;
4100 lpfc_sli_hba_setup_error
:
4101 phba
->link_state
= LPFC_HBA_ERROR
;
4102 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4103 "0445 Firmware initialization failed\n");
4108 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4109 * @phba: Pointer to HBA context object.
4110 * @mboxq: mailbox pointer.
4111 * This function issue a dump mailbox command to read config region
4112 * 23 and parse the records in the region and populate driver
4116 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
,
4117 LPFC_MBOXQ_t
*mboxq
)
4119 struct lpfc_dmabuf
*mp
;
4120 struct lpfc_mqe
*mqe
;
4121 uint32_t data_length
;
4124 /* Program the default value of vlan_id and fc_map */
4125 phba
->valid_vlan
= 0;
4126 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4127 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4128 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4130 mqe
= &mboxq
->u
.mqe
;
4131 if (lpfc_dump_fcoe_param(phba
, mboxq
))
4134 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4135 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4137 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4138 "(%d):2571 Mailbox cmd x%x Status x%x "
4139 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4140 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4141 "CQ: x%x x%x x%x x%x\n",
4142 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4143 bf_get(lpfc_mqe_command
, mqe
),
4144 bf_get(lpfc_mqe_status
, mqe
),
4145 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4146 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4147 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4148 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4149 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4150 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4151 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4152 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4153 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4155 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4156 mboxq
->mcqe
.trailer
);
4159 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4163 data_length
= mqe
->un
.mb_words
[5];
4164 if (data_length
> DMP_RGN23_SIZE
) {
4165 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4170 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4171 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4177 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4178 * @phba: pointer to lpfc hba data structure.
4179 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4180 * @vpd: pointer to the memory to hold resulting port vpd data.
4181 * @vpd_size: On input, the number of bytes allocated to @vpd.
4182 * On output, the number of data bytes in @vpd.
4184 * This routine executes a READ_REV SLI4 mailbox command. In
4185 * addition, this routine gets the port vpd data.
4189 * ENOMEM - could not allocated memory.
4192 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4193 uint8_t *vpd
, uint32_t *vpd_size
)
4197 struct lpfc_dmabuf
*dmabuf
;
4198 struct lpfc_mqe
*mqe
;
4200 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4205 * Get a DMA buffer for the vpd data resulting from the READ_REV
4208 dma_size
= *vpd_size
;
4209 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4213 if (!dmabuf
->virt
) {
4217 memset(dmabuf
->virt
, 0, dma_size
);
4220 * The SLI4 implementation of READ_REV conflicts at word1,
4221 * bits 31:16 and SLI4 adds vpd functionality not present
4222 * in SLI3. This code corrects the conflicts.
4224 lpfc_read_rev(phba
, mboxq
);
4225 mqe
= &mboxq
->u
.mqe
;
4226 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4227 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4228 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4229 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4230 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4232 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4234 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4235 dmabuf
->virt
, dmabuf
->phys
);
4241 * The available vpd length cannot be bigger than the
4242 * DMA buffer passed to the port. Catch the less than
4243 * case and update the caller's size.
4245 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4246 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4248 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4250 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4251 dmabuf
->virt
, dmabuf
->phys
);
4257 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4258 * @phba: pointer to lpfc hba data structure.
4260 * This routine is called to explicitly arm the SLI4 device's completion and
4264 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4268 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4269 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4270 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4271 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4273 lpfc_sli4_eq_release(phba
->sli4_hba
.sp_eq
, LPFC_QUEUE_REARM
);
4274 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4275 lpfc_sli4_eq_release(phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
4280 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4281 * @phba: Pointer to HBA context object.
4283 * This function is the main SLI4 device intialization PCI function. This
4284 * function is called by the HBA intialization code, HBA reset code and
4285 * HBA error attention handler code. Caller is not required to hold any
4289 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
4292 LPFC_MBOXQ_t
*mboxq
;
4293 struct lpfc_mqe
*mqe
;
4296 uint32_t ftr_rsp
= 0;
4297 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
4298 struct lpfc_vport
*vport
= phba
->pport
;
4299 struct lpfc_dmabuf
*mp
;
4301 /* Perform a PCI function reset to start from clean */
4302 rc
= lpfc_pci_function_reset(phba
);
4306 /* Check the HBA Host Status Register for readyness */
4307 rc
= lpfc_sli4_post_status_check(phba
);
4311 spin_lock_irq(&phba
->hbalock
);
4312 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
4313 spin_unlock_irq(&phba
->hbalock
);
4317 * Allocate a single mailbox container for initializing the
4320 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4325 * Continue initialization with default values even if driver failed
4326 * to read FCoE param config regions
4328 if (lpfc_sli4_read_fcoe_params(phba
, mboxq
))
4329 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
4330 "2570 Failed to read FCoE parameters\n");
4332 /* Issue READ_REV to collect vpd and FW information. */
4333 vpd_size
= SLI4_PAGE_SIZE
;
4334 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
4340 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
4344 mqe
= &mboxq
->u
.mqe
;
4345 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
4346 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
4347 phba
->hba_flag
|= HBA_FCOE_SUPPORT
;
4349 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
4351 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
4353 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
4355 if (phba
->sli_rev
!= LPFC_SLI_REV4
||
4356 !(phba
->hba_flag
& HBA_FCOE_SUPPORT
)) {
4357 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4358 "0376 READ_REV Error. SLI Level %d "
4359 "FCoE enabled %d\n",
4360 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_SUPPORT
);
4365 * Evaluate the read rev and vpd data. Populate the driver
4366 * state with the results. If this routine fails, the failure
4367 * is not fatal as the driver will use generic values.
4369 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
4370 if (unlikely(!rc
)) {
4371 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4372 "0377 Error %d parsing vpd. "
4373 "Using defaults.\n", rc
);
4377 /* Save information as VPD data */
4378 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
4379 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
4380 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
4381 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
4383 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
4385 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
4387 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
4389 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4390 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
4391 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
4392 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
4393 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4394 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
4395 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4396 "(%d):0380 READ_REV Status x%x "
4397 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4398 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4399 bf_get(lpfc_mqe_status
, mqe
),
4400 phba
->vpd
.rev
.opFwName
,
4401 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
4402 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
4405 * Discover the port's supported feature set and match it against the
4408 lpfc_request_features(phba
, mboxq
);
4409 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4416 * The port must support FCP initiator mode as this is the
4417 * only mode running in the host.
4419 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
4420 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4421 "0378 No support for fcpi mode.\n");
4426 * If the port cannot support the host's requested features
4427 * then turn off the global config parameters to disable the
4428 * feature in the driver. This is not a fatal error.
4430 if ((phba
->cfg_enable_bg
) &&
4431 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4434 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
4435 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4439 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4440 "0379 Feature Mismatch Data: x%08x %08x "
4441 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
4442 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
4443 phba
->cfg_enable_npiv
, phba
->max_vpi
);
4444 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4445 phba
->cfg_enable_bg
= 0;
4446 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4447 phba
->cfg_enable_npiv
= 0;
4450 /* These SLI3 features are assumed in SLI4 */
4451 spin_lock_irq(&phba
->hbalock
);
4452 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
4453 spin_unlock_irq(&phba
->hbalock
);
4455 /* Read the port's service parameters. */
4456 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
4458 phba
->link_state
= LPFC_HBA_ERROR
;
4463 mboxq
->vport
= vport
;
4464 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4465 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4466 if (rc
== MBX_SUCCESS
) {
4467 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
4472 * This memory was allocated by the lpfc_read_sparam routine. Release
4473 * it to the mbuf pool.
4475 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4477 mboxq
->context1
= NULL
;
4479 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4480 "0382 READ_SPARAM command failed "
4481 "status %d, mbxStatus x%x\n",
4482 rc
, bf_get(lpfc_mqe_status
, mqe
));
4483 phba
->link_state
= LPFC_HBA_ERROR
;
4488 if (phba
->cfg_soft_wwnn
)
4489 u64_to_wwn(phba
->cfg_soft_wwnn
,
4490 vport
->fc_sparam
.nodeName
.u
.wwn
);
4491 if (phba
->cfg_soft_wwpn
)
4492 u64_to_wwn(phba
->cfg_soft_wwpn
,
4493 vport
->fc_sparam
.portName
.u
.wwn
);
4494 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
4495 sizeof(struct lpfc_name
));
4496 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
4497 sizeof(struct lpfc_name
));
4499 /* Update the fc_host data structures with new wwn. */
4500 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
4501 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
4503 /* Register SGL pool to the device using non-embedded mailbox command */
4504 rc
= lpfc_sli4_post_sgl_list(phba
);
4506 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4507 "0582 Error %d during sgl post operation\n",
4513 /* Register SCSI SGL pool to the device */
4514 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
4516 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4517 "0383 Error %d during scsi sgl post "
4519 /* Some Scsi buffers were moved to the abort scsi list */
4520 /* A pci function reset will repost them */
4525 /* Post the rpi header region to the device. */
4526 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
4528 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4529 "0393 Error %d during rpi post operation\n",
4535 /* Set up all the queues to the device */
4536 rc
= lpfc_sli4_queue_setup(phba
);
4538 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4539 "0381 Error %d during queue setup.\n ", rc
);
4540 goto out_stop_timers
;
4543 /* Arm the CQs and then EQs on device */
4544 lpfc_sli4_arm_cqeq_intr(phba
);
4546 /* Indicate device interrupt mode */
4547 phba
->sli4_hba
.intr_enable
= 1;
4549 /* Allow asynchronous mailbox command to go through */
4550 spin_lock_irq(&phba
->hbalock
);
4551 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4552 spin_unlock_irq(&phba
->hbalock
);
4554 /* Post receive buffers to the device */
4555 lpfc_sli4_rb_setup(phba
);
4557 /* Reset HBA FCF states after HBA reset */
4558 phba
->fcf
.fcf_flag
= 0;
4559 phba
->fcf
.current_rec
.flag
= 0;
4561 /* Start the ELS watchdog timer */
4562 mod_timer(&vport
->els_tmofunc
,
4563 jiffies
+ HZ
* (phba
->fc_ratov
* 2));
4565 /* Start heart beat timer */
4566 mod_timer(&phba
->hb_tmofunc
,
4567 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
4568 phba
->hb_outstanding
= 0;
4569 phba
->last_completion_time
= jiffies
;
4571 /* Start error attention (ERATT) polling timer */
4572 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
4574 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4575 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4576 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4578 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4579 "2829 This device supports "
4580 "Advanced Error Reporting (AER)\n");
4581 spin_lock_irq(&phba
->hbalock
);
4582 phba
->hba_flag
|= HBA_AER_ENABLED
;
4583 spin_unlock_irq(&phba
->hbalock
);
4585 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4586 "2830 This device does not support "
4587 "Advanced Error Reporting (AER)\n");
4588 phba
->cfg_aer_support
= 0;
4593 * The port is ready, set the host's link state to LINK_DOWN
4594 * in preparation for link interrupts.
4596 lpfc_init_link(phba
, mboxq
, phba
->cfg_topology
, phba
->cfg_link_speed
);
4597 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
4598 lpfc_set_loopback_flag(phba
);
4599 /* Change driver state to LPFC_LINK_DOWN right before init link */
4600 spin_lock_irq(&phba
->hbalock
);
4601 phba
->link_state
= LPFC_LINK_DOWN
;
4602 spin_unlock_irq(&phba
->hbalock
);
4603 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
4604 if (unlikely(rc
!= MBX_NOT_FINISHED
)) {
4610 /* Unset all the queues set up in this routine when error out */
4612 lpfc_sli4_queue_unset(phba
);
4616 lpfc_stop_hba_timers(phba
);
4620 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4625 * lpfc_mbox_timeout - Timeout call back function for mbox timer
4626 * @ptr: context object - pointer to hba structure.
4628 * This is the callback function for mailbox timer. The mailbox
4629 * timer is armed when a new mailbox command is issued and the timer
4630 * is deleted when the mailbox complete. The function is called by
4631 * the kernel timer code when a mailbox does not complete within
4632 * expected time. This function wakes up the worker thread to
4633 * process the mailbox timeout and returns. All the processing is
4634 * done by the worker thread function lpfc_mbox_timeout_handler.
4637 lpfc_mbox_timeout(unsigned long ptr
)
4639 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
4640 unsigned long iflag
;
4641 uint32_t tmo_posted
;
4643 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
4644 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
4646 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
4647 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
4650 lpfc_worker_wake_up(phba
);
4656 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
4657 * @phba: Pointer to HBA context object.
4659 * This function is called from worker thread when a mailbox command times out.
4660 * The caller is not required to hold any locks. This function will reset the
4661 * HBA and recover all the pending commands.
4664 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
4666 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
4667 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
4668 struct lpfc_sli
*psli
= &phba
->sli
;
4669 struct lpfc_sli_ring
*pring
;
4671 /* Check the pmbox pointer first. There is a race condition
4672 * between the mbox timeout handler getting executed in the
4673 * worklist and the mailbox actually completing. When this
4674 * race condition occurs, the mbox_active will be NULL.
4676 spin_lock_irq(&phba
->hbalock
);
4677 if (pmbox
== NULL
) {
4678 lpfc_printf_log(phba
, KERN_WARNING
,
4680 "0353 Active Mailbox cleared - mailbox timeout "
4682 spin_unlock_irq(&phba
->hbalock
);
4686 /* Mbox cmd <mbxCommand> timeout */
4687 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4688 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
4690 phba
->pport
->port_state
,
4692 phba
->sli
.mbox_active
);
4693 spin_unlock_irq(&phba
->hbalock
);
4695 /* Setting state unknown so lpfc_sli_abort_iocb_ring
4696 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
4697 * it to fail all oustanding SCSI IO.
4699 spin_lock_irq(&phba
->pport
->work_port_lock
);
4700 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
4701 spin_unlock_irq(&phba
->pport
->work_port_lock
);
4702 spin_lock_irq(&phba
->hbalock
);
4703 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4704 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
4705 spin_unlock_irq(&phba
->hbalock
);
4707 pring
= &psli
->ring
[psli
->fcp_ring
];
4708 lpfc_sli_abort_iocb_ring(phba
, pring
);
4710 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4711 "0345 Resetting board due to mailbox timeout\n");
4713 /* Reset the HBA device */
4714 lpfc_reset_hba(phba
);
4718 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
4719 * @phba: Pointer to HBA context object.
4720 * @pmbox: Pointer to mailbox object.
4721 * @flag: Flag indicating how the mailbox need to be processed.
4723 * This function is called by discovery code and HBA management code
4724 * to submit a mailbox command to firmware with SLI-3 interface spec. This
4725 * function gets the hbalock to protect the data structures.
4726 * The mailbox command can be submitted in polling mode, in which case
4727 * this function will wait in a polling loop for the completion of the
4729 * If the mailbox is submitted in no_wait mode (not polling) the
4730 * function will submit the command and returns immediately without waiting
4731 * for the mailbox completion. The no_wait is supported only when HBA
4732 * is in SLI2/SLI3 mode - interrupts are enabled.
4733 * The SLI interface allows only one mailbox pending at a time. If the
4734 * mailbox is issued in polling mode and there is already a mailbox
4735 * pending, then the function will return an error. If the mailbox is issued
4736 * in NO_WAIT mode and there is a mailbox pending already, the function
4737 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
4738 * The sli layer owns the mailbox object until the completion of mailbox
4739 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
4740 * return codes the caller owns the mailbox command after the return of
4744 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
4748 struct lpfc_sli
*psli
= &phba
->sli
;
4749 uint32_t status
, evtctr
;
4752 unsigned long timeout
;
4753 unsigned long drvr_flag
= 0;
4754 uint32_t word0
, ldata
;
4755 void __iomem
*to_slim
;
4756 int processing_queue
= 0;
4758 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
4760 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4761 /* processing mbox queue from intr_handler */
4762 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
4763 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4766 processing_queue
= 1;
4767 pmbox
= lpfc_mbox_get(phba
);
4769 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4774 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
4775 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
4777 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4778 lpfc_printf_log(phba
, KERN_ERR
,
4779 LOG_MBOX
| LOG_VPORT
,
4780 "1806 Mbox x%x failed. No vport\n",
4781 pmbox
->u
.mb
.mbxCommand
);
4783 goto out_not_finished
;
4787 /* If the PCI channel is in offline state, do not post mbox. */
4788 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
4789 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4790 goto out_not_finished
;
4793 /* If HBA has a deferred error attention, fail the iocb. */
4794 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
4795 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4796 goto out_not_finished
;
4802 status
= MBX_SUCCESS
;
4804 if (phba
->link_state
== LPFC_HBA_ERROR
) {
4805 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4807 /* Mbox command <mbxCommand> cannot issue */
4808 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4809 "(%d):0311 Mailbox command x%x cannot "
4810 "issue Data: x%x x%x\n",
4811 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4812 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4813 goto out_not_finished
;
4816 if (mb
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
&&
4817 !(readl(phba
->HCregaddr
) & HC_MBINT_ENA
)) {
4818 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4819 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4820 "(%d):2528 Mailbox command x%x cannot "
4821 "issue Data: x%x x%x\n",
4822 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4823 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
4824 goto out_not_finished
;
4827 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
4828 /* Polling for a mbox command when another one is already active
4829 * is not allowed in SLI. Also, the driver must have established
4830 * SLI2 mode to queue and process multiple mbox commands.
4833 if (flag
& MBX_POLL
) {
4834 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4836 /* Mbox command <mbxCommand> cannot issue */
4837 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4838 "(%d):2529 Mailbox command x%x "
4839 "cannot issue Data: x%x x%x\n",
4840 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4841 pmbox
->u
.mb
.mbxCommand
,
4842 psli
->sli_flag
, flag
);
4843 goto out_not_finished
;
4846 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
4847 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4848 /* Mbox command <mbxCommand> cannot issue */
4849 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4850 "(%d):2530 Mailbox command x%x "
4851 "cannot issue Data: x%x x%x\n",
4852 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4853 pmbox
->u
.mb
.mbxCommand
,
4854 psli
->sli_flag
, flag
);
4855 goto out_not_finished
;
4858 /* Another mailbox command is still being processed, queue this
4859 * command to be processed later.
4861 lpfc_mbox_put(phba
, pmbox
);
4863 /* Mbox cmd issue - BUSY */
4864 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4865 "(%d):0308 Mbox cmd issue - BUSY Data: "
4866 "x%x x%x x%x x%x\n",
4867 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
4868 mb
->mbxCommand
, phba
->pport
->port_state
,
4869 psli
->sli_flag
, flag
);
4871 psli
->slistat
.mbox_busy
++;
4872 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4875 lpfc_debugfs_disc_trc(pmbox
->vport
,
4876 LPFC_DISC_TRC_MBOX_VPORT
,
4877 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
4878 (uint32_t)mb
->mbxCommand
,
4879 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4882 lpfc_debugfs_disc_trc(phba
->pport
,
4884 "MBOX Bsy: cmd:x%x mb:x%x x%x",
4885 (uint32_t)mb
->mbxCommand
,
4886 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4892 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4894 /* If we are not polling, we MUST be in SLI2 mode */
4895 if (flag
!= MBX_POLL
) {
4896 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
4897 (mb
->mbxCommand
!= MBX_KILL_BOARD
)) {
4898 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4899 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
4900 /* Mbox command <mbxCommand> cannot issue */
4901 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4902 "(%d):2531 Mailbox command x%x "
4903 "cannot issue Data: x%x x%x\n",
4904 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4905 pmbox
->u
.mb
.mbxCommand
,
4906 psli
->sli_flag
, flag
);
4907 goto out_not_finished
;
4909 /* timeout active mbox command */
4910 mod_timer(&psli
->mbox_tmo
, (jiffies
+
4911 (HZ
* lpfc_mbox_tmo_val(phba
, mb
->mbxCommand
))));
4914 /* Mailbox cmd <cmd> issue */
4915 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4916 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
4918 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
4919 mb
->mbxCommand
, phba
->pport
->port_state
,
4920 psli
->sli_flag
, flag
);
4922 if (mb
->mbxCommand
!= MBX_HEARTBEAT
) {
4924 lpfc_debugfs_disc_trc(pmbox
->vport
,
4925 LPFC_DISC_TRC_MBOX_VPORT
,
4926 "MBOX Send vport: cmd:x%x mb:x%x x%x",
4927 (uint32_t)mb
->mbxCommand
,
4928 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4931 lpfc_debugfs_disc_trc(phba
->pport
,
4933 "MBOX Send: cmd:x%x mb:x%x x%x",
4934 (uint32_t)mb
->mbxCommand
,
4935 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
4939 psli
->slistat
.mbox_cmd
++;
4940 evtctr
= psli
->slistat
.mbox_event
;
4942 /* next set own bit for the adapter and copy over command word */
4943 mb
->mbxOwner
= OWN_CHIP
;
4945 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
4946 /* Populate mbox extension offset word. */
4947 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
4948 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
4949 = (uint8_t *)phba
->mbox_ext
4950 - (uint8_t *)phba
->mbox
;
4953 /* Copy the mailbox extension data */
4954 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
4955 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
4956 (uint8_t *)phba
->mbox_ext
,
4957 pmbox
->in_ext_byte_len
);
4959 /* Copy command data to host SLIM area */
4960 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4962 /* Populate mbox extension offset word. */
4963 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
4964 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
4965 = MAILBOX_HBA_EXT_OFFSET
;
4967 /* Copy the mailbox extension data */
4968 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
4969 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
4970 MAILBOX_HBA_EXT_OFFSET
,
4971 pmbox
->context2
, pmbox
->in_ext_byte_len
);
4974 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4975 /* copy command data into host mbox for cmpl */
4976 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
4979 /* First copy mbox command data to HBA SLIM, skip past first
4981 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
4982 lpfc_memcpy_to_slim(to_slim
, &mb
->un
.varWords
[0],
4983 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
4985 /* Next copy over first word, with mbxOwner set */
4986 ldata
= *((uint32_t *)mb
);
4987 to_slim
= phba
->MBslimaddr
;
4988 writel(ldata
, to_slim
);
4989 readl(to_slim
); /* flush */
4991 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
4992 /* switch over to host mailbox */
4993 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
5001 /* Set up reference to mailbox command */
5002 psli
->mbox_active
= pmbox
;
5003 /* Interrupt board to do it */
5004 writel(CA_MBATT
, phba
->CAregaddr
);
5005 readl(phba
->CAregaddr
); /* flush */
5006 /* Don't wait for it to finish, just return */
5010 /* Set up null reference to mailbox command */
5011 psli
->mbox_active
= NULL
;
5012 /* Interrupt board to do it */
5013 writel(CA_MBATT
, phba
->CAregaddr
);
5014 readl(phba
->CAregaddr
); /* flush */
5016 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5017 /* First read mbox status word */
5018 word0
= *((uint32_t *)phba
->mbox
);
5019 word0
= le32_to_cpu(word0
);
5021 /* First read mbox status word */
5022 word0
= readl(phba
->MBslimaddr
);
5025 /* Read the HBA Host Attention Register */
5026 ha_copy
= readl(phba
->HAregaddr
);
5027 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
5031 /* Wait for command to complete */
5032 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
5033 (!(ha_copy
& HA_MBATT
) &&
5034 (phba
->link_state
> LPFC_WARM_START
))) {
5035 if (time_after(jiffies
, timeout
)) {
5036 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5037 spin_unlock_irqrestore(&phba
->hbalock
,
5039 goto out_not_finished
;
5042 /* Check if we took a mbox interrupt while we were
5044 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
5045 && (evtctr
!= psli
->slistat
.mbox_event
))
5049 spin_unlock_irqrestore(&phba
->hbalock
,
5052 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5055 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5056 /* First copy command data */
5057 word0
= *((uint32_t *)phba
->mbox
);
5058 word0
= le32_to_cpu(word0
);
5059 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5062 /* Check real SLIM for any errors */
5063 slimword0
= readl(phba
->MBslimaddr
);
5064 slimmb
= (MAILBOX_t
*) & slimword0
;
5065 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
5066 && slimmb
->mbxStatus
) {
5073 /* First copy command data */
5074 word0
= readl(phba
->MBslimaddr
);
5076 /* Read the HBA Host Attention Register */
5077 ha_copy
= readl(phba
->HAregaddr
);
5080 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5081 /* copy results back to user */
5082 lpfc_sli_pcimem_bcopy(phba
->mbox
, mb
, MAILBOX_CMD_SIZE
);
5083 /* Copy the mailbox extension data */
5084 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5085 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
5087 pmbox
->out_ext_byte_len
);
5090 /* First copy command data */
5091 lpfc_memcpy_from_slim(mb
, phba
->MBslimaddr
,
5093 /* Copy the mailbox extension data */
5094 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5095 lpfc_memcpy_from_slim(pmbox
->context2
,
5097 MAILBOX_HBA_EXT_OFFSET
,
5098 pmbox
->out_ext_byte_len
);
5102 writel(HA_MBATT
, phba
->HAregaddr
);
5103 readl(phba
->HAregaddr
); /* flush */
5105 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5106 status
= mb
->mbxStatus
;
5109 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5113 if (processing_queue
) {
5114 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5115 lpfc_mbox_cmpl_put(phba
, pmbox
);
5117 return MBX_NOT_FINISHED
;
5121 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5122 * @phba: Pointer to HBA context object.
5124 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5125 * the driver internal pending mailbox queue. It will then try to wait out the
5126 * possible outstanding mailbox command before return.
5129 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5130 * the outstanding mailbox command timed out.
5133 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
5135 struct lpfc_sli
*psli
= &phba
->sli
;
5136 uint8_t actcmd
= MBX_HEARTBEAT
;
5138 unsigned long timeout
;
5140 /* Mark the asynchronous mailbox command posting as blocked */
5141 spin_lock_irq(&phba
->hbalock
);
5142 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
5143 if (phba
->sli
.mbox_active
)
5144 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
5145 spin_unlock_irq(&phba
->hbalock
);
5146 /* Determine how long we might wait for the active mailbox
5147 * command to be gracefully completed by firmware.
5149 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
5151 /* Wait for the outstnading mailbox command to complete */
5152 while (phba
->sli
.mbox_active
) {
5153 /* Check active mailbox complete status every 2ms */
5155 if (time_after(jiffies
, timeout
)) {
5156 /* Timeout, marked the outstanding cmd not complete */
5162 /* Can not cleanly block async mailbox command, fails it */
5164 spin_lock_irq(&phba
->hbalock
);
5165 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5166 spin_unlock_irq(&phba
->hbalock
);
5172 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5173 * @phba: Pointer to HBA context object.
5175 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5176 * commands from the driver internal pending mailbox queue. It makes sure
5177 * that there is no outstanding mailbox command before resuming posting
5178 * asynchronous mailbox commands. If, for any reason, there is outstanding
5179 * mailbox command, it will try to wait it out before resuming asynchronous
5180 * mailbox command posting.
5183 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
5185 struct lpfc_sli
*psli
= &phba
->sli
;
5187 spin_lock_irq(&phba
->hbalock
);
5188 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5189 /* Asynchronous mailbox posting is not blocked, do nothing */
5190 spin_unlock_irq(&phba
->hbalock
);
5194 /* Outstanding synchronous mailbox command is guaranteed to be done,
5195 * successful or timeout, after timing-out the outstanding mailbox
5196 * command shall always be removed, so just unblock posting async
5197 * mailbox command and resume
5199 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5200 spin_unlock_irq(&phba
->hbalock
);
5202 /* wake up worker thread to post asynchronlous mailbox command */
5203 lpfc_worker_wake_up(phba
);
5207 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5208 * @phba: Pointer to HBA context object.
5209 * @mboxq: Pointer to mailbox object.
5211 * The function posts a mailbox to the port. The mailbox is expected
5212 * to be comletely filled in and ready for the port to operate on it.
5213 * This routine executes a synchronous completion operation on the
5214 * mailbox by polling for its completion.
5216 * The caller must not be holding any locks when calling this routine.
5219 * MBX_SUCCESS - mailbox posted successfully
5220 * Any of the MBX error values.
5223 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5225 int rc
= MBX_SUCCESS
;
5226 unsigned long iflag
;
5228 uint32_t mcqe_status
;
5230 unsigned long timeout
;
5231 struct lpfc_sli
*psli
= &phba
->sli
;
5232 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
5233 struct lpfc_bmbx_create
*mbox_rgn
;
5234 struct dma_address
*dma_address
;
5235 struct lpfc_register bmbx_reg
;
5238 * Only one mailbox can be active to the bootstrap mailbox region
5239 * at a time and there is no queueing provided.
5241 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5242 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5243 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5244 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5245 "(%d):2532 Mailbox command x%x (x%x) "
5246 "cannot issue Data: x%x x%x\n",
5247 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5248 mboxq
->u
.mb
.mbxCommand
,
5249 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5250 psli
->sli_flag
, MBX_POLL
);
5251 return MBXERR_ERROR
;
5253 /* The server grabs the token and owns it until release */
5254 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5255 phba
->sli
.mbox_active
= mboxq
;
5256 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5259 * Initialize the bootstrap memory region to avoid stale data areas
5260 * in the mailbox post. Then copy the caller's mailbox contents to
5261 * the bmbx mailbox region.
5263 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
5264 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
5265 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
5266 sizeof(struct lpfc_mqe
));
5268 /* Post the high mailbox dma address to the port and wait for ready. */
5269 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5270 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
5272 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5275 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5276 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5280 if (time_after(jiffies
, timeout
)) {
5284 } while (!db_ready
);
5286 /* Post the low mailbox dma address to the port. */
5287 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
5288 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5291 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5292 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5296 if (time_after(jiffies
, timeout
)) {
5300 } while (!db_ready
);
5303 * Read the CQ to ensure the mailbox has completed.
5304 * If so, update the mailbox status so that the upper layers
5305 * can complete the request normally.
5307 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
5308 sizeof(struct lpfc_mqe
));
5309 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
5310 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
5311 sizeof(struct lpfc_mcqe
));
5312 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
5314 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5315 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
5316 bf_set(lpfc_mqe_status
, mb
, LPFC_MBX_ERROR_RANGE
| mcqe_status
);
5319 lpfc_sli4_swap_str(phba
, mboxq
);
5321 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5322 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5323 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5324 " x%x x%x CQ: x%x x%x x%x x%x\n",
5325 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5326 mbx_cmnd
, lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5327 bf_get(lpfc_mqe_status
, mb
),
5328 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
5329 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
5330 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
5331 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
5332 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
5333 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
5334 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
5335 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
5336 mboxq
->mcqe
.trailer
);
5338 /* We are holding the token, no needed for lock when release */
5339 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5340 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5341 phba
->sli
.mbox_active
= NULL
;
5342 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5347 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5348 * @phba: Pointer to HBA context object.
5349 * @pmbox: Pointer to mailbox object.
5350 * @flag: Flag indicating how the mailbox need to be processed.
5352 * This function is called by discovery code and HBA management code to submit
5353 * a mailbox command to firmware with SLI-4 interface spec.
5355 * Return codes the caller owns the mailbox command after the return of the
5359 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
5362 struct lpfc_sli
*psli
= &phba
->sli
;
5363 unsigned long iflags
;
5366 rc
= lpfc_mbox_dev_check(phba
);
5368 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5369 "(%d):2544 Mailbox command x%x (x%x) "
5370 "cannot issue Data: x%x x%x\n",
5371 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5372 mboxq
->u
.mb
.mbxCommand
,
5373 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5374 psli
->sli_flag
, flag
);
5375 goto out_not_finished
;
5378 /* Detect polling mode and jump to a handler */
5379 if (!phba
->sli4_hba
.intr_enable
) {
5380 if (flag
== MBX_POLL
)
5381 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5384 if (rc
!= MBX_SUCCESS
)
5385 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5386 "(%d):2541 Mailbox command x%x "
5387 "(x%x) cannot issue Data: x%x x%x\n",
5388 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5389 mboxq
->u
.mb
.mbxCommand
,
5390 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5391 psli
->sli_flag
, flag
);
5393 } else if (flag
== MBX_POLL
) {
5394 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
5395 "(%d):2542 Try to issue mailbox command "
5396 "x%x (x%x) synchronously ahead of async"
5397 "mailbox command queue: x%x x%x\n",
5398 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5399 mboxq
->u
.mb
.mbxCommand
,
5400 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5401 psli
->sli_flag
, flag
);
5402 /* Try to block the asynchronous mailbox posting */
5403 rc
= lpfc_sli4_async_mbox_block(phba
);
5405 /* Successfully blocked, now issue sync mbox cmd */
5406 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5407 if (rc
!= MBX_SUCCESS
)
5408 lpfc_printf_log(phba
, KERN_ERR
,
5410 "(%d):2597 Mailbox command "
5411 "x%x (x%x) cannot issue "
5414 mboxq
->vport
->vpi
: 0,
5415 mboxq
->u
.mb
.mbxCommand
,
5416 lpfc_sli4_mbox_opcode_get(phba
,
5418 psli
->sli_flag
, flag
);
5419 /* Unblock the async mailbox posting afterward */
5420 lpfc_sli4_async_mbox_unblock(phba
);
5425 /* Now, interrupt mode asynchrous mailbox command */
5426 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
5428 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5429 "(%d):2543 Mailbox command x%x (x%x) "
5430 "cannot issue Data: x%x x%x\n",
5431 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5432 mboxq
->u
.mb
.mbxCommand
,
5433 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5434 psli
->sli_flag
, flag
);
5435 goto out_not_finished
;
5438 /* Put the mailbox command to the driver internal FIFO */
5439 psli
->slistat
.mbox_busy
++;
5440 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5441 lpfc_mbox_put(phba
, mboxq
);
5442 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5443 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5444 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5445 "x%x (x%x) x%x x%x x%x\n",
5446 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
5447 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5448 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5449 phba
->pport
->port_state
,
5450 psli
->sli_flag
, MBX_NOWAIT
);
5451 /* Wake up worker thread to transport mailbox command from head */
5452 lpfc_worker_wake_up(phba
);
5457 return MBX_NOT_FINISHED
;
5461 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5462 * @phba: Pointer to HBA context object.
5464 * This function is called by worker thread to send a mailbox command to
5465 * SLI4 HBA firmware.
5469 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
5471 struct lpfc_sli
*psli
= &phba
->sli
;
5472 LPFC_MBOXQ_t
*mboxq
;
5473 int rc
= MBX_SUCCESS
;
5474 unsigned long iflags
;
5475 struct lpfc_mqe
*mqe
;
5478 /* Check interrupt mode before post async mailbox command */
5479 if (unlikely(!phba
->sli4_hba
.intr_enable
))
5480 return MBX_NOT_FINISHED
;
5482 /* Check for mailbox command service token */
5483 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5484 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5485 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5486 return MBX_NOT_FINISHED
;
5488 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5489 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5490 return MBX_NOT_FINISHED
;
5492 if (unlikely(phba
->sli
.mbox_active
)) {
5493 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5494 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5495 "0384 There is pending active mailbox cmd\n");
5496 return MBX_NOT_FINISHED
;
5498 /* Take the mailbox command service token */
5499 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5501 /* Get the next mailbox command from head of queue */
5502 mboxq
= lpfc_mbox_get(phba
);
5504 /* If no more mailbox command waiting for post, we're done */
5506 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5507 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5510 phba
->sli
.mbox_active
= mboxq
;
5511 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5513 /* Check device readiness for posting mailbox command */
5514 rc
= lpfc_mbox_dev_check(phba
);
5516 /* Driver clean routine will clean up pending mailbox */
5517 goto out_not_finished
;
5519 /* Prepare the mbox command to be posted */
5520 mqe
= &mboxq
->u
.mqe
;
5521 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
5523 /* Start timer for the mbox_tmo and log some mailbox post messages */
5524 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5525 (HZ
* lpfc_mbox_tmo_val(phba
, mbx_cmnd
))));
5527 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5528 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5530 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
5531 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5532 phba
->pport
->port_state
, psli
->sli_flag
);
5534 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
5536 lpfc_debugfs_disc_trc(mboxq
->vport
,
5537 LPFC_DISC_TRC_MBOX_VPORT
,
5538 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5539 mbx_cmnd
, mqe
->un
.mb_words
[0],
5540 mqe
->un
.mb_words
[1]);
5542 lpfc_debugfs_disc_trc(phba
->pport
,
5544 "MBOX Send: cmd:x%x mb:x%x x%x",
5545 mbx_cmnd
, mqe
->un
.mb_words
[0],
5546 mqe
->un
.mb_words
[1]);
5549 psli
->slistat
.mbox_cmd
++;
5551 /* Post the mailbox command to the port */
5552 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
5553 if (rc
!= MBX_SUCCESS
) {
5554 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5555 "(%d):2533 Mailbox command x%x (x%x) "
5556 "cannot issue Data: x%x x%x\n",
5557 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5558 mboxq
->u
.mb
.mbxCommand
,
5559 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5560 psli
->sli_flag
, MBX_NOWAIT
);
5561 goto out_not_finished
;
5567 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5568 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5569 __lpfc_mbox_cmpl_put(phba
, mboxq
);
5570 /* Release the token */
5571 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5572 phba
->sli
.mbox_active
= NULL
;
5573 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5575 return MBX_NOT_FINISHED
;
5579 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5580 * @phba: Pointer to HBA context object.
5581 * @pmbox: Pointer to mailbox object.
5582 * @flag: Flag indicating how the mailbox need to be processed.
5584 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5585 * the API jump table function pointer from the lpfc_hba struct.
5587 * Return codes the caller owns the mailbox command after the return of the
5591 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
5593 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
5597 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5598 * @phba: The hba struct for which this call is being executed.
5599 * @dev_grp: The HBA PCI-Device group number.
5601 * This routine sets up the mbox interface API function jump table in @phba
5603 * Returns: 0 - success, -ENODEV - failure.
5606 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
5610 case LPFC_PCI_DEV_LP
:
5611 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
5612 phba
->lpfc_sli_handle_slow_ring_event
=
5613 lpfc_sli_handle_slow_ring_event_s3
;
5614 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
5615 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
5616 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
5618 case LPFC_PCI_DEV_OC
:
5619 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
5620 phba
->lpfc_sli_handle_slow_ring_event
=
5621 lpfc_sli_handle_slow_ring_event_s4
;
5622 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
5623 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
5624 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
5627 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5628 "1420 Invalid HBA PCI-device group: 0x%x\n",
5637 * __lpfc_sli_ringtx_put - Add an iocb to the txq
5638 * @phba: Pointer to HBA context object.
5639 * @pring: Pointer to driver SLI ring object.
5640 * @piocb: Pointer to address of newly added command iocb.
5642 * This function is called with hbalock held to add a command
5643 * iocb to the txq when SLI layer cannot submit the command iocb
5647 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5648 struct lpfc_iocbq
*piocb
)
5650 /* Insert the caller's iocb in the txq tail for later processing. */
5651 list_add_tail(&piocb
->list
, &pring
->txq
);
5656 * lpfc_sli_next_iocb - Get the next iocb in 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 before a new
5662 * iocb is submitted to the firmware. This function checks
5663 * txq to flush the iocbs in txq to Firmware before
5664 * submitting new iocbs to the Firmware.
5665 * If there are iocbs in the txq which need to be submitted
5666 * to firmware, lpfc_sli_next_iocb returns the first element
5667 * of the txq after dequeuing it from txq.
5668 * If there is no iocb in the txq then the function will return
5669 * *piocb and *piocb is set to NULL. Caller needs to check
5670 * *piocb to find if there are more commands in the txq.
5672 static struct lpfc_iocbq
*
5673 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
5674 struct lpfc_iocbq
**piocb
)
5676 struct lpfc_iocbq
* nextiocb
;
5678 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
5688 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
5689 * @phba: Pointer to HBA context object.
5690 * @ring_number: SLI ring number to issue iocb on.
5691 * @piocb: Pointer to command iocb.
5692 * @flag: Flag indicating if this command can be put into txq.
5694 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
5695 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
5696 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
5697 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
5698 * this function allows only iocbs for posting buffers. This function finds
5699 * next available slot in the command ring and posts the command to the
5700 * available slot and writes the port attention register to request HBA start
5701 * processing new iocb. If there is no slot available in the ring and
5702 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
5703 * the function returns IOCB_BUSY.
5705 * This function is called with hbalock held. The function will return success
5706 * after it successfully submit the iocb to firmware or after adding to the
5710 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
5711 struct lpfc_iocbq
*piocb
, uint32_t flag
)
5713 struct lpfc_iocbq
*nextiocb
;
5715 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
5717 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
5718 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
5719 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
5720 lpfc_printf_log(phba
, KERN_ERR
,
5721 LOG_SLI
| LOG_VPORT
,
5722 "1807 IOCB x%x failed. No vport\n",
5723 piocb
->iocb
.ulpCommand
);
5729 /* If the PCI channel is in offline state, do not post iocbs. */
5730 if (unlikely(pci_channel_offline(phba
->pcidev
)))
5733 /* If HBA has a deferred error attention, fail the iocb. */
5734 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
5738 * We should never get an IOCB if we are in a < LINK_DOWN state
5740 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
5744 * Check to see if we are blocking IOCB processing because of a
5745 * outstanding event.
5747 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
5750 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
5752 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
5753 * can be issued if the link is not up.
5755 switch (piocb
->iocb
.ulpCommand
) {
5756 case CMD_GEN_REQUEST64_CR
:
5757 case CMD_GEN_REQUEST64_CX
:
5758 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
5759 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
5760 FC_RCTL_DD_UNSOL_CMD
) ||
5761 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
5762 MENLO_TRANSPORT_TYPE
))
5766 case CMD_QUE_RING_BUF_CN
:
5767 case CMD_QUE_RING_BUF64_CN
:
5769 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
5770 * completion, iocb_cmpl MUST be 0.
5772 if (piocb
->iocb_cmpl
)
5773 piocb
->iocb_cmpl
= NULL
;
5775 case CMD_CREATE_XRI_CR
:
5776 case CMD_CLOSE_XRI_CN
:
5777 case CMD_CLOSE_XRI_CX
:
5784 * For FCP commands, we must be in a state where we can process link
5787 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
5788 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
5792 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
5793 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
5794 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
5797 lpfc_sli_update_ring(phba
, pring
);
5799 lpfc_sli_update_full_ring(phba
, pring
);
5802 return IOCB_SUCCESS
;
5807 pring
->stats
.iocb_cmd_delay
++;
5811 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
5812 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
5813 return IOCB_SUCCESS
;
5820 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
5821 * @phba: Pointer to HBA context object.
5822 * @piocb: Pointer to command iocb.
5823 * @sglq: Pointer to the scatter gather queue object.
5825 * This routine converts the bpl or bde that is in the IOCB
5826 * to a sgl list for the sli4 hardware. The physical address
5827 * of the bpl/bde is converted back to a virtual address.
5828 * If the IOCB contains a BPL then the list of BDE's is
5829 * converted to sli4_sge's. If the IOCB contains a single
5830 * BDE then it is converted to a single sli_sge.
5831 * The IOCB is still in cpu endianess so the contents of
5832 * the bpl can be used without byte swapping.
5834 * Returns valid XRI = Success, NO_XRI = Failure.
5837 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
5838 struct lpfc_sglq
*sglq
)
5840 uint16_t xritag
= NO_XRI
;
5841 struct ulp_bde64
*bpl
= NULL
;
5842 struct ulp_bde64 bde
;
5843 struct sli4_sge
*sgl
= NULL
;
5848 if (!piocbq
|| !sglq
)
5851 sgl
= (struct sli4_sge
*)sglq
->sgl
;
5852 icmd
= &piocbq
->iocb
;
5853 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5854 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
5855 sizeof(struct ulp_bde64
);
5856 /* The addrHigh and addrLow fields within the IOCB
5857 * have not been byteswapped yet so there is no
5858 * need to swap them back.
5860 bpl
= (struct ulp_bde64
*)
5861 ((struct lpfc_dmabuf
*)piocbq
->context3
)->virt
;
5866 for (i
= 0; i
< numBdes
; i
++) {
5867 /* Should already be byte swapped. */
5868 sgl
->addr_hi
= bpl
->addrHigh
;
5869 sgl
->addr_lo
= bpl
->addrLow
;
5871 if ((i
+1) == numBdes
)
5872 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5874 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
5875 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5876 /* swap the size field back to the cpu so we
5877 * can assign it to the sgl.
5879 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5880 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
5884 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
5885 /* The addrHigh and addrLow fields of the BDE have not
5886 * been byteswapped yet so they need to be swapped
5887 * before putting them in the sgl.
5890 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
5892 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
5893 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
5894 sgl
->word2
= cpu_to_le32(sgl
->word2
);
5896 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
5898 return sglq
->sli4_xritag
;
5902 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
5903 * @phba: Pointer to HBA context object.
5905 * This routine performs a round robin SCSI command to SLI4 FCP WQ index
5906 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
5909 * Return: index into SLI4 fast-path FCP queue index.
5912 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
5915 if (phba
->fcp_qidx
>= phba
->cfg_fcp_wq_count
)
5918 return phba
->fcp_qidx
;
5922 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
5923 * @phba: Pointer to HBA context object.
5924 * @piocb: Pointer to command iocb.
5925 * @wqe: Pointer to the work queue entry.
5927 * This routine converts the iocb command to its Work Queue Entry
5928 * equivalent. The wqe pointer should not have any fields set when
5929 * this routine is called because it will memcpy over them.
5930 * This routine does not set the CQ_ID or the WQEC bits in the
5933 * Returns: 0 = Success, IOCB_ERROR = Failure.
5936 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
5937 union lpfc_wqe
*wqe
)
5939 uint32_t xmit_len
= 0, total_len
= 0;
5943 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
5946 struct ulp_bde64
*bpl
= NULL
;
5947 uint32_t els_id
= ELS_ID_DEFAULT
;
5949 struct ulp_bde64 bde
;
5951 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
5952 /* The fcp commands will set command type */
5953 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
5954 command_type
= FCP_COMMAND
;
5955 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
5956 command_type
= ELS_COMMAND_FIP
;
5958 command_type
= ELS_COMMAND_NON_FIP
;
5960 /* Some of the fields are in the right position already */
5961 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
5962 abort_tag
= (uint32_t) iocbq
->iotag
;
5963 xritag
= iocbq
->sli4_xritag
;
5964 wqe
->words
[7] = 0; /* The ct field has moved so reset */
5965 /* words0-2 bpl convert bde */
5966 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
5967 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
5968 sizeof(struct ulp_bde64
);
5969 bpl
= (struct ulp_bde64
*)
5970 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
5974 /* Should already be byte swapped. */
5975 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
5976 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
5977 /* swap the size field back to the cpu so we
5978 * can assign it to the sgl.
5980 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
5981 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
5983 for (i
= 0; i
< numBdes
; i
++) {
5984 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
5985 total_len
+= bde
.tus
.f
.bdeSize
;
5988 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
5990 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
5991 cmnd
= iocbq
->iocb
.ulpCommand
;
5993 switch (iocbq
->iocb
.ulpCommand
) {
5994 case CMD_ELS_REQUEST64_CR
:
5995 if (!iocbq
->iocb
.ulpLe
) {
5996 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5997 "2007 Only Limited Edition cmd Format"
5998 " supported 0x%x\n",
5999 iocbq
->iocb
.ulpCommand
);
6002 wqe
->els_req
.payload_len
= xmit_len
;
6003 /* Els_reguest64 has a TMO */
6004 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
6005 iocbq
->iocb
.ulpTimeout
);
6006 /* Need a VF for word 4 set the vf bit*/
6007 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
6008 /* And a VFID for word 12 */
6009 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
6011 * Set ct field to 3, indicates that the context_tag field
6012 * contains the FCFI and remote N_Port_ID is
6016 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6017 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6018 iocbq
->iocb
.ulpContext
);
6020 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, ct
);
6021 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6022 /* CCP CCPE PV PRI in word10 were set in the memcpy */
6024 if (command_type
== ELS_COMMAND_FIP
) {
6025 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
6026 >> LPFC_FIP_ELS_ID_SHIFT
);
6028 bf_set(lpfc_wqe_gen_els_id
, &wqe
->generic
, els_id
);
6031 case CMD_XMIT_SEQUENCE64_CX
:
6032 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6033 iocbq
->iocb
.un
.ulpWord
[3]);
6034 wqe
->generic
.word3
= 0;
6035 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
6036 /* The entire sequence is transmitted for this IOCB */
6037 xmit_len
= total_len
;
6038 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
6039 case CMD_XMIT_SEQUENCE64_CR
:
6040 /* word3 iocb=io_tag32 wqe=payload_offset */
6041 /* payload offset used for multilpe outstanding
6042 * sequences on the same exchange
6045 /* word4 relative_offset memcpy */
6046 /* word5 r_ctl/df_ctl memcpy */
6047 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6048 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
6049 command_type
= OTHER_COMMAND
;
6051 case CMD_XMIT_BCAST64_CN
:
6052 /* word3 iocb=iotag32 wqe=payload_len */
6053 wqe
->words
[3] = 0; /* no definition for this in wqe */
6054 /* word4 iocb=rsvd wqe=rsvd */
6055 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6056 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6057 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6058 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6060 case CMD_FCP_IWRITE64_CR
:
6061 command_type
= FCP_COMMAND_DATA_OUT
;
6062 /* The struct for wqe fcp_iwrite has 3 fields that are somewhat
6064 * word3 is payload_len: byte offset to the sgl entry for the
6066 * word4 is total xfer len, same as the IOCB->ulpParameter.
6067 * word5 is initial xfer len 0 = wait for xfer-ready
6070 /* Always wait for xfer-ready before sending data */
6071 wqe
->fcp_iwrite
.initial_xfer_len
= 0;
6072 /* word 4 (xfer length) should have been set on the memcpy */
6074 /* allow write to fall through to read */
6075 case CMD_FCP_IREAD64_CR
:
6076 /* FCP_CMD is always the 1st sgl entry */
6077 wqe
->fcp_iread
.payload_len
=
6078 xmit_len
+ sizeof(struct fcp_rsp
);
6080 /* word 4 (xfer length) should have been set on the memcpy */
6082 bf_set(lpfc_wqe_gen_erp
, &wqe
->generic
,
6083 iocbq
->iocb
.ulpFCP2Rcvy
);
6084 bf_set(lpfc_wqe_gen_lnk
, &wqe
->generic
, iocbq
->iocb
.ulpXS
);
6085 /* The XC bit and the XS bit are similar. The driver never
6086 * tracked whether or not the exchange was previouslly open.
6087 * XC = Exchange create, 0 is create. 1 is already open.
6088 * XS = link cmd: 1 do not close the exchange after command.
6089 * XS = 0 close exchange when command completes.
6090 * The only time we would not set the XC bit is when the XS bit
6091 * is set and we are sending our 2nd or greater command on
6094 /* Always open the exchange */
6095 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6097 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6098 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6100 case CMD_FCP_ICMND64_CR
:
6101 /* Always open the exchange */
6102 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6105 wqe
->words
[10] &= 0xffff0000; /* zero out ebde count */
6106 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, 0);
6108 case CMD_GEN_REQUEST64_CR
:
6109 /* word3 command length is described as byte offset to the
6110 * rsp_data. Would always be 16, sizeof(struct sli4_sge)
6115 wqe
->gen_req
.command_len
= xmit_len
;
6116 /* Word4 parameter copied in the memcpy */
6117 /* Word5 [rctl, type, df_ctl, la] copied in memcpy */
6118 /* word6 context tag copied in memcpy */
6119 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
6120 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6121 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6122 "2015 Invalid CT %x command 0x%x\n",
6123 ct
, iocbq
->iocb
.ulpCommand
);
6126 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
, 0);
6127 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
,
6128 iocbq
->iocb
.ulpTimeout
);
6130 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6131 command_type
= OTHER_COMMAND
;
6133 case CMD_XMIT_ELS_RSP64_CX
:
6134 /* words0-2 BDE memcpy */
6135 /* word3 iocb=iotag32 wqe=rsvd */
6137 /* word4 iocb=did wge=rsvd. */
6139 /* word5 iocb=rsvd wge=did */
6140 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
6141 iocbq
->iocb
.un
.elsreq64
.remoteID
);
6143 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6144 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6146 bf_set(lpfc_wqe_gen_pu
, &wqe
->generic
, iocbq
->iocb
.ulpPU
);
6147 bf_set(wqe_rcvoxid
, &wqe
->generic
, iocbq
->iocb
.ulpContext
);
6148 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
6149 bf_set(lpfc_wqe_gen_context
, &wqe
->generic
,
6150 iocbq
->vport
->vpi
+ phba
->vpi_base
);
6151 command_type
= OTHER_COMMAND
;
6153 case CMD_CLOSE_XRI_CN
:
6154 case CMD_ABORT_XRI_CN
:
6155 case CMD_ABORT_XRI_CX
:
6156 /* words 0-2 memcpy should be 0 rserved */
6157 /* port will send abts */
6158 if (iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6160 * The link is down so the fw does not need to send abts
6163 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
6165 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
6166 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
6168 bf_set(lpfc_wqe_gen_ct
, &wqe
->generic
,
6169 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6170 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
6172 * The abort handler will send us CMD_ABORT_XRI_CN or
6173 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6175 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, CMD_ABORT_XRI_CX
);
6176 cmnd
= CMD_ABORT_XRI_CX
;
6177 command_type
= OTHER_COMMAND
;
6180 case CMD_XMIT_BLS_RSP64_CX
:
6181 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6182 * we re-construct this WQE here based on information in
6183 * iocbq from scratch.
6185 memset(wqe
, 0, sizeof(union lpfc_wqe
));
6186 /* OX_ID is invariable to who sent ABTS to CT exchange */
6187 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
6188 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_acc
));
6189 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_acc
) ==
6190 LPFC_ABTS_UNSOL_INT
) {
6191 /* ABTS sent by initiator to CT exchange, the
6192 * RX_ID field will be filled with the newly
6193 * allocated responder XRI.
6195 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6196 iocbq
->sli4_xritag
);
6198 /* ABTS sent by responder to CT exchange, the
6199 * RX_ID field will be filled with the responder
6202 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6203 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_acc
));
6205 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
6206 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
6207 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
6208 iocbq
->iocb
.ulpContext
);
6209 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6210 command_type
= OTHER_COMMAND
;
6212 case CMD_XRI_ABORTED_CX
:
6213 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
6214 /* words0-2 are all 0's no bde */
6215 /* word3 and word4 are rsvrd */
6218 /* word5 iocb=rsvd wge=did */
6219 /* There is no remote port id in the IOCB? */
6220 /* Let this fall through and fail */
6221 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
6222 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
6223 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
6224 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
6226 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6227 "2014 Invalid command 0x%x\n",
6228 iocbq
->iocb
.ulpCommand
);
6233 bf_set(lpfc_wqe_gen_xri
, &wqe
->generic
, xritag
);
6234 bf_set(lpfc_wqe_gen_request_tag
, &wqe
->generic
, iocbq
->iotag
);
6235 wqe
->generic
.abort_tag
= abort_tag
;
6236 bf_set(lpfc_wqe_gen_cmd_type
, &wqe
->generic
, command_type
);
6237 bf_set(lpfc_wqe_gen_command
, &wqe
->generic
, cmnd
);
6238 bf_set(lpfc_wqe_gen_class
, &wqe
->generic
, iocbq
->iocb
.ulpClass
);
6239 bf_set(lpfc_wqe_gen_cq_id
, &wqe
->generic
, LPFC_WQE_CQ_ID_DEFAULT
);
6245 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6246 * @phba: Pointer to HBA context object.
6247 * @ring_number: SLI ring number to issue iocb on.
6248 * @piocb: Pointer to command iocb.
6249 * @flag: Flag indicating if this command can be put into txq.
6251 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6252 * an iocb command to an HBA with SLI-4 interface spec.
6254 * This function is called with hbalock held. The function will return success
6255 * after it successfully submit the iocb to firmware or after adding to the
6259 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
6260 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6262 struct lpfc_sglq
*sglq
;
6264 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6266 if (piocb
->sli4_xritag
== NO_XRI
) {
6267 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6268 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6271 if (pring
->txq_cnt
) {
6272 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6273 __lpfc_sli_ringtx_put(phba
,
6275 return IOCB_SUCCESS
;
6280 sglq
= __lpfc_sli_get_sglq(phba
);
6282 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6283 __lpfc_sli_ringtx_put(phba
,
6286 return IOCB_SUCCESS
;
6292 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
6293 sglq
= NULL
; /* These IO's already have an XRI and
6297 /* This is a continuation of a commandi,(CX) so this
6298 * sglq is on the active list
6300 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_xritag
);
6306 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
6308 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
6312 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
6315 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
6316 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
6318 * For FCP command IOCB, get a new WQ index to distribute
6319 * WQE across the WQsr. On the other hand, for abort IOCB,
6320 * it carries the same WQ index to the original command
6323 if (piocb
->iocb_flag
& LPFC_IO_FCP
)
6324 piocb
->fcp_wqidx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
6325 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
6329 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
6332 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
6338 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6340 * This routine wraps the actual lockless version for issusing IOCB function
6341 * pointer from the lpfc_hba struct.
6344 * IOCB_ERROR - Error
6345 * IOCB_SUCCESS - Success
6349 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6350 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6352 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6356 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6357 * @phba: The hba struct for which this call is being executed.
6358 * @dev_grp: The HBA PCI-Device group number.
6360 * This routine sets up the SLI interface API function jump table in @phba
6362 * Returns: 0 - success, -ENODEV - failure.
6365 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6369 case LPFC_PCI_DEV_LP
:
6370 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
6371 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
6373 case LPFC_PCI_DEV_OC
:
6374 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
6375 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
6378 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6379 "1419 Invalid HBA PCI-device group: 0x%x\n",
6384 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
6389 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6390 * @phba: Pointer to HBA context object.
6391 * @pring: Pointer to driver SLI ring object.
6392 * @piocb: Pointer to command iocb.
6393 * @flag: Flag indicating if this command can be put into txq.
6395 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6396 * function. This function gets the hbalock and calls
6397 * __lpfc_sli_issue_iocb function and will return the error returned
6398 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6399 * functions which do not hold hbalock.
6402 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6403 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6405 unsigned long iflags
;
6408 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6409 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6410 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6416 * lpfc_extra_ring_setup - Extra ring setup function
6417 * @phba: Pointer to HBA context object.
6419 * This function is called while driver attaches with the
6420 * HBA to setup the extra ring. The extra ring is used
6421 * only when driver needs to support target mode functionality
6422 * or IP over FC functionalities.
6424 * This function is called with no lock held.
6427 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
6429 struct lpfc_sli
*psli
;
6430 struct lpfc_sli_ring
*pring
;
6434 /* Adjust cmd/rsp ring iocb entries more evenly */
6436 /* Take some away from the FCP ring */
6437 pring
= &psli
->ring
[psli
->fcp_ring
];
6438 pring
->numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6439 pring
->numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6440 pring
->numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6441 pring
->numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6443 /* and give them to the extra ring */
6444 pring
= &psli
->ring
[psli
->extra_ring
];
6446 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6447 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6448 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6449 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6451 /* Setup default profile for this ring */
6452 pring
->iotag_max
= 4096;
6453 pring
->num_mask
= 1;
6454 pring
->prt
[0].profile
= 0; /* Mask 0 */
6455 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
6456 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
6457 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
6462 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6463 * @phba: Pointer to HBA context object.
6464 * @pring: Pointer to driver SLI ring object.
6465 * @iocbq: Pointer to iocb object.
6467 * This function is called by the slow ring event handler
6468 * function when there is an ASYNC event iocb in the ring.
6469 * This function is called with no lock held.
6470 * Currently this function handles only temperature related
6471 * ASYNC events. The function decodes the temperature sensor
6472 * event message and posts events for the management applications.
6475 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
6476 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
6481 struct temp_event temp_event_data
;
6482 struct Scsi_Host
*shost
;
6485 icmd
= &iocbq
->iocb
;
6486 evt_code
= icmd
->un
.asyncstat
.evt_code
;
6487 temp
= icmd
->ulpContext
;
6489 if ((evt_code
!= ASYNC_TEMP_WARN
) &&
6490 (evt_code
!= ASYNC_TEMP_SAFE
)) {
6491 iocb_w
= (uint32_t *) icmd
;
6492 lpfc_printf_log(phba
,
6495 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6497 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6498 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6499 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6500 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6502 icmd
->un
.asyncstat
.evt_code
,
6503 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
6504 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
6505 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
6506 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
6510 temp_event_data
.data
= (uint32_t)temp
;
6511 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
6512 if (evt_code
== ASYNC_TEMP_WARN
) {
6513 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
6514 lpfc_printf_log(phba
,
6517 "0347 Adapter is very hot, please take "
6518 "corrective action. temperature : %d Celsius\n",
6521 if (evt_code
== ASYNC_TEMP_SAFE
) {
6522 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
6523 lpfc_printf_log(phba
,
6526 "0340 Adapter temperature is OK now. "
6527 "temperature : %d Celsius\n",
6531 /* Send temperature change event to applications */
6532 shost
= lpfc_shost_from_vport(phba
->pport
);
6533 fc_host_post_vendor_event(shost
, fc_get_event_number(),
6534 sizeof(temp_event_data
), (char *) &temp_event_data
,
6541 * lpfc_sli_setup - SLI ring setup function
6542 * @phba: Pointer to HBA context object.
6544 * lpfc_sli_setup sets up rings of the SLI interface with
6545 * number of iocbs per ring and iotags. This function is
6546 * called while driver attach to the HBA and before the
6547 * interrupts are enabled. So there is no need for locking.
6549 * This function always returns 0.
6552 lpfc_sli_setup(struct lpfc_hba
*phba
)
6554 int i
, totiocbsize
= 0;
6555 struct lpfc_sli
*psli
= &phba
->sli
;
6556 struct lpfc_sli_ring
*pring
;
6558 psli
->num_rings
= MAX_CONFIGURED_RINGS
;
6560 psli
->fcp_ring
= LPFC_FCP_RING
;
6561 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
6562 psli
->extra_ring
= LPFC_EXTRA_RING
;
6564 psli
->iocbq_lookup
= NULL
;
6565 psli
->iocbq_lookup_len
= 0;
6566 psli
->last_iotag
= 0;
6568 for (i
= 0; i
< psli
->num_rings
; i
++) {
6569 pring
= &psli
->ring
[i
];
6571 case LPFC_FCP_RING
: /* ring 0 - FCP */
6572 /* numCiocb and numRiocb are used in config_port */
6573 pring
->numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
6574 pring
->numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
6575 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6576 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6577 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6578 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6579 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6580 SLI3_IOCB_CMD_SIZE
:
6582 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6583 SLI3_IOCB_RSP_SIZE
:
6585 pring
->iotag_ctr
= 0;
6587 (phba
->cfg_hba_queue_depth
* 2);
6588 pring
->fast_iotag
= pring
->iotag_max
;
6589 pring
->num_mask
= 0;
6591 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
6592 /* numCiocb and numRiocb are used in config_port */
6593 pring
->numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
6594 pring
->numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
6595 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
6596 SLI3_IOCB_CMD_SIZE
:
6598 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
6599 SLI3_IOCB_RSP_SIZE
:
6601 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
6602 pring
->num_mask
= 0;
6604 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
6605 /* numCiocb and numRiocb are used in config_port */
6606 pring
->numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
6607 pring
->numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
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
->fast_iotag
= 0;
6615 pring
->iotag_ctr
= 0;
6616 pring
->iotag_max
= 4096;
6617 pring
->lpfc_sli_rcv_async_status
=
6618 lpfc_sli_async_event_handler
;
6619 pring
->num_mask
= LPFC_MAX_RING_MASK
;
6620 pring
->prt
[0].profile
= 0; /* Mask 0 */
6621 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
6622 pring
->prt
[0].type
= FC_TYPE_ELS
;
6623 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
6624 lpfc_els_unsol_event
;
6625 pring
->prt
[1].profile
= 0; /* Mask 1 */
6626 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
6627 pring
->prt
[1].type
= FC_TYPE_ELS
;
6628 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
6629 lpfc_els_unsol_event
;
6630 pring
->prt
[2].profile
= 0; /* Mask 2 */
6631 /* NameServer Inquiry */
6632 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
6634 pring
->prt
[2].type
= FC_TYPE_CT
;
6635 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
6636 lpfc_ct_unsol_event
;
6637 pring
->prt
[3].profile
= 0; /* Mask 3 */
6638 /* NameServer response */
6639 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
6641 pring
->prt
[3].type
= FC_TYPE_CT
;
6642 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
6643 lpfc_ct_unsol_event
;
6644 /* abort unsolicited sequence */
6645 pring
->prt
[4].profile
= 0; /* Mask 4 */
6646 pring
->prt
[4].rctl
= FC_RCTL_BA_ABTS
;
6647 pring
->prt
[4].type
= FC_TYPE_BLS
;
6648 pring
->prt
[4].lpfc_sli_rcv_unsol_event
=
6649 lpfc_sli4_ct_abort_unsol_event
;
6652 totiocbsize
+= (pring
->numCiocb
* pring
->sizeCiocb
) +
6653 (pring
->numRiocb
* pring
->sizeRiocb
);
6655 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
6656 /* Too many cmd / rsp ring entries in SLI2 SLIM */
6657 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
6658 "SLI2 SLIM Data: x%x x%lx\n",
6659 phba
->brd_no
, totiocbsize
,
6660 (unsigned long) MAX_SLIM_IOCB_SIZE
);
6662 if (phba
->cfg_multi_ring_support
== 2)
6663 lpfc_extra_ring_setup(phba
);
6669 * lpfc_sli_queue_setup - Queue initialization function
6670 * @phba: Pointer to HBA context object.
6672 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
6673 * ring. This function also initializes ring indices of each ring.
6674 * This function is called during the initialization of the SLI
6675 * interface of an HBA.
6676 * This function is called with no lock held and always returns
6680 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
6682 struct lpfc_sli
*psli
;
6683 struct lpfc_sli_ring
*pring
;
6687 spin_lock_irq(&phba
->hbalock
);
6688 INIT_LIST_HEAD(&psli
->mboxq
);
6689 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
6690 /* Initialize list headers for txq and txcmplq as double linked lists */
6691 for (i
= 0; i
< psli
->num_rings
; i
++) {
6692 pring
= &psli
->ring
[i
];
6694 pring
->next_cmdidx
= 0;
6695 pring
->local_getidx
= 0;
6697 INIT_LIST_HEAD(&pring
->txq
);
6698 INIT_LIST_HEAD(&pring
->txcmplq
);
6699 INIT_LIST_HEAD(&pring
->iocb_continueq
);
6700 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
6701 INIT_LIST_HEAD(&pring
->postbufq
);
6703 spin_unlock_irq(&phba
->hbalock
);
6708 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
6709 * @phba: Pointer to HBA context object.
6711 * This routine flushes the mailbox command subsystem. It will unconditionally
6712 * flush all the mailbox commands in the three possible stages in the mailbox
6713 * command sub-system: pending mailbox command queue; the outstanding mailbox
6714 * command; and completed mailbox command queue. It is caller's responsibility
6715 * to make sure that the driver is in the proper state to flush the mailbox
6716 * command sub-system. Namely, the posting of mailbox commands into the
6717 * pending mailbox command queue from the various clients must be stopped;
6718 * either the HBA is in a state that it will never works on the outstanding
6719 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
6720 * mailbox command has been completed.
6723 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
6725 LIST_HEAD(completions
);
6726 struct lpfc_sli
*psli
= &phba
->sli
;
6728 unsigned long iflag
;
6730 /* Flush all the mailbox commands in the mbox system */
6731 spin_lock_irqsave(&phba
->hbalock
, iflag
);
6732 /* The pending mailbox command queue */
6733 list_splice_init(&phba
->sli
.mboxq
, &completions
);
6734 /* The outstanding active mailbox command */
6735 if (psli
->mbox_active
) {
6736 list_add_tail(&psli
->mbox_active
->list
, &completions
);
6737 psli
->mbox_active
= NULL
;
6738 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6740 /* The completed mailbox command queue */
6741 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
6742 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
6744 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
6745 while (!list_empty(&completions
)) {
6746 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
6747 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
6749 pmb
->mbox_cmpl(phba
, pmb
);
6754 * lpfc_sli_host_down - Vport cleanup function
6755 * @vport: Pointer to virtual port object.
6757 * lpfc_sli_host_down is called to clean up the resources
6758 * associated with a vport before destroying virtual
6759 * port data structures.
6760 * This function does following operations:
6761 * - Free discovery resources associated with this virtual
6763 * - Free iocbs associated with this virtual port in
6765 * - Send abort for all iocb commands associated with this
6768 * This function is called with no lock held and always returns 1.
6771 lpfc_sli_host_down(struct lpfc_vport
*vport
)
6773 LIST_HEAD(completions
);
6774 struct lpfc_hba
*phba
= vport
->phba
;
6775 struct lpfc_sli
*psli
= &phba
->sli
;
6776 struct lpfc_sli_ring
*pring
;
6777 struct lpfc_iocbq
*iocb
, *next_iocb
;
6779 unsigned long flags
= 0;
6780 uint16_t prev_pring_flag
;
6782 lpfc_cleanup_discovery_resources(vport
);
6784 spin_lock_irqsave(&phba
->hbalock
, flags
);
6785 for (i
= 0; i
< psli
->num_rings
; i
++) {
6786 pring
= &psli
->ring
[i
];
6787 prev_pring_flag
= pring
->flag
;
6788 /* Only slow rings */
6789 if (pring
->ringno
== LPFC_ELS_RING
) {
6790 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6791 /* Set the lpfc data pending flag */
6792 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6795 * Error everything on the txq since these iocbs have not been
6796 * given to the FW yet.
6798 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
6799 if (iocb
->vport
!= vport
)
6801 list_move_tail(&iocb
->list
, &completions
);
6805 /* Next issue ABTS for everything on the txcmplq */
6806 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
6808 if (iocb
->vport
!= vport
)
6810 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
6813 pring
->flag
= prev_pring_flag
;
6816 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6818 /* Cancel all the IOCBs from the completions list */
6819 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6825 * lpfc_sli_hba_down - Resource cleanup function for the HBA
6826 * @phba: Pointer to HBA context object.
6828 * This function cleans up all iocb, buffers, mailbox commands
6829 * while shutting down the HBA. This function is called with no
6830 * lock held and always returns 1.
6831 * This function does the following to cleanup driver resources:
6832 * - Free discovery resources for each virtual port
6833 * - Cleanup any pending fabric iocbs
6834 * - Iterate through the iocb txq and free each entry
6836 * - Free up any buffer posted to the HBA
6837 * - Free mailbox commands in the mailbox queue.
6840 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
6842 LIST_HEAD(completions
);
6843 struct lpfc_sli
*psli
= &phba
->sli
;
6844 struct lpfc_sli_ring
*pring
;
6845 struct lpfc_dmabuf
*buf_ptr
;
6846 unsigned long flags
= 0;
6849 /* Shutdown the mailbox command sub-system */
6850 lpfc_sli_mbox_sys_shutdown(phba
);
6852 lpfc_hba_down_prep(phba
);
6854 lpfc_fabric_abort_hba(phba
);
6856 spin_lock_irqsave(&phba
->hbalock
, flags
);
6857 for (i
= 0; i
< psli
->num_rings
; i
++) {
6858 pring
= &psli
->ring
[i
];
6859 /* Only slow rings */
6860 if (pring
->ringno
== LPFC_ELS_RING
) {
6861 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
6862 /* Set the lpfc data pending flag */
6863 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
6867 * Error everything on the txq since these iocbs have not been
6868 * given to the FW yet.
6870 list_splice_init(&pring
->txq
, &completions
);
6874 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6876 /* Cancel all the IOCBs from the completions list */
6877 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
6880 spin_lock_irqsave(&phba
->hbalock
, flags
);
6881 list_splice_init(&phba
->elsbuf
, &completions
);
6882 phba
->elsbuf_cnt
= 0;
6883 phba
->elsbuf_prev_cnt
= 0;
6884 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
6886 while (!list_empty(&completions
)) {
6887 list_remove_head(&completions
, buf_ptr
,
6888 struct lpfc_dmabuf
, list
);
6889 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
6893 /* Return any active mbox cmds */
6894 del_timer_sync(&psli
->mbox_tmo
);
6896 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
6897 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6898 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
6904 * lpfc_sli4_hba_down - PCI function resource cleanup for the SLI4 HBA
6905 * @phba: Pointer to HBA context object.
6907 * This function cleans up all queues, iocb, buffers, mailbox commands while
6908 * shutting down the SLI4 HBA FCoE function. This function is called with no
6909 * lock held and always returns 1.
6911 * This function does the following to cleanup driver FCoE function resources:
6912 * - Free discovery resources for each virtual port
6913 * - Cleanup any pending fabric iocbs
6914 * - Iterate through the iocb txq and free each entry in the list.
6915 * - Free up any buffer posted to the HBA.
6916 * - Clean up all the queue entries: WQ, RQ, MQ, EQ, CQ, etc.
6917 * - Free mailbox commands in the mailbox queue.
6920 lpfc_sli4_hba_down(struct lpfc_hba
*phba
)
6922 /* Stop the SLI4 device port */
6923 lpfc_stop_port(phba
);
6925 /* Tear down the queues in the HBA */
6926 lpfc_sli4_queue_unset(phba
);
6928 /* unregister default FCFI from the HBA */
6929 lpfc_sli4_fcfi_unreg(phba
, phba
->fcf
.fcfi
);
6935 * lpfc_sli_pcimem_bcopy - SLI memory copy function
6936 * @srcp: Source memory pointer.
6937 * @destp: Destination memory pointer.
6938 * @cnt: Number of words required to be copied.
6940 * This function is used for copying data between driver memory
6941 * and the SLI memory. This function also changes the endianness
6942 * of each word if native endianness is different from SLI
6943 * endianness. This function can be called with or without
6947 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6949 uint32_t *src
= srcp
;
6950 uint32_t *dest
= destp
;
6954 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
6956 ldata
= le32_to_cpu(ldata
);
6965 * lpfc_sli_bemem_bcopy - SLI memory copy function
6966 * @srcp: Source memory pointer.
6967 * @destp: Destination memory pointer.
6968 * @cnt: Number of words required to be copied.
6970 * This function is used for copying data between a data structure
6971 * with big endian representation to local endianness.
6972 * This function can be called with or without lock.
6975 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
6977 uint32_t *src
= srcp
;
6978 uint32_t *dest
= destp
;
6982 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
6984 ldata
= be32_to_cpu(ldata
);
6992 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
6993 * @phba: Pointer to HBA context object.
6994 * @pring: Pointer to driver SLI ring object.
6995 * @mp: Pointer to driver buffer object.
6997 * This function is called with no lock held.
6998 * It always return zero after adding the buffer to the postbufq
7002 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7003 struct lpfc_dmabuf
*mp
)
7005 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7007 spin_lock_irq(&phba
->hbalock
);
7008 list_add_tail(&mp
->list
, &pring
->postbufq
);
7009 pring
->postbufq_cnt
++;
7010 spin_unlock_irq(&phba
->hbalock
);
7015 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
7016 * @phba: Pointer to HBA context object.
7018 * When HBQ is enabled, buffers are searched based on tags. This function
7019 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7020 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7021 * does not conflict with tags of buffer posted for unsolicited events.
7022 * The function returns the allocated tag. The function is called with
7026 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
7028 spin_lock_irq(&phba
->hbalock
);
7029 phba
->buffer_tag_count
++;
7031 * Always set the QUE_BUFTAG_BIT to distiguish between
7032 * a tag assigned by HBQ.
7034 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
7035 spin_unlock_irq(&phba
->hbalock
);
7036 return phba
->buffer_tag_count
;
7040 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
7041 * @phba: Pointer to HBA context object.
7042 * @pring: Pointer to driver SLI ring object.
7045 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7046 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7047 * iocb is posted to the response ring with the tag of the buffer.
7048 * This function searches the pring->postbufq list using the tag
7049 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7050 * iocb. If the buffer is found then lpfc_dmabuf object of the
7051 * buffer is returned to the caller else NULL is returned.
7052 * This function is called with no lock held.
7054 struct lpfc_dmabuf
*
7055 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7058 struct lpfc_dmabuf
*mp
, *next_mp
;
7059 struct list_head
*slp
= &pring
->postbufq
;
7061 /* Search postbufq, from the begining, looking for a match on tag */
7062 spin_lock_irq(&phba
->hbalock
);
7063 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7064 if (mp
->buffer_tag
== tag
) {
7065 list_del_init(&mp
->list
);
7066 pring
->postbufq_cnt
--;
7067 spin_unlock_irq(&phba
->hbalock
);
7072 spin_unlock_irq(&phba
->hbalock
);
7073 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7074 "0402 Cannot find virtual addr for buffer tag on "
7075 "ring %d Data x%lx x%p x%p x%x\n",
7076 pring
->ringno
, (unsigned long) tag
,
7077 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7083 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
7084 * @phba: Pointer to HBA context object.
7085 * @pring: Pointer to driver SLI ring object.
7086 * @phys: DMA address of the buffer.
7088 * This function searches the buffer list using the dma_address
7089 * of unsolicited event to find the driver's lpfc_dmabuf object
7090 * corresponding to the dma_address. The function returns the
7091 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7092 * This function is called by the ct and els unsolicited event
7093 * handlers to get the buffer associated with the unsolicited
7096 * This function is called with no lock held.
7098 struct lpfc_dmabuf
*
7099 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7102 struct lpfc_dmabuf
*mp
, *next_mp
;
7103 struct list_head
*slp
= &pring
->postbufq
;
7105 /* Search postbufq, from the begining, looking for a match on phys */
7106 spin_lock_irq(&phba
->hbalock
);
7107 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7108 if (mp
->phys
== phys
) {
7109 list_del_init(&mp
->list
);
7110 pring
->postbufq_cnt
--;
7111 spin_unlock_irq(&phba
->hbalock
);
7116 spin_unlock_irq(&phba
->hbalock
);
7117 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7118 "0410 Cannot find virtual addr for mapped buf on "
7119 "ring %d Data x%llx x%p x%p x%x\n",
7120 pring
->ringno
, (unsigned long long)phys
,
7121 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7126 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7127 * @phba: Pointer to HBA context object.
7128 * @cmdiocb: Pointer to driver command iocb object.
7129 * @rspiocb: Pointer to driver response iocb object.
7131 * This function is the completion handler for the abort iocbs for
7132 * ELS commands. This function is called from the ELS ring event
7133 * handler with no lock held. This function frees memory resources
7134 * associated with the abort iocb.
7137 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7138 struct lpfc_iocbq
*rspiocb
)
7140 IOCB_t
*irsp
= &rspiocb
->iocb
;
7141 uint16_t abort_iotag
, abort_context
;
7142 struct lpfc_iocbq
*abort_iocb
;
7143 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7147 if (irsp
->ulpStatus
) {
7148 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
7149 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
7151 spin_lock_irq(&phba
->hbalock
);
7152 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7153 if (abort_iotag
!= 0 &&
7154 abort_iotag
<= phba
->sli
.last_iotag
)
7156 phba
->sli
.iocbq_lookup
[abort_iotag
];
7158 /* For sli4 the abort_tag is the XRI,
7159 * so the abort routine puts the iotag of the iocb
7160 * being aborted in the context field of the abort
7163 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
7166 * If the iocb is not found in Firmware queue the iocb
7167 * might have completed already. Do not free it again.
7169 if (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) {
7170 if (irsp
->un
.ulpWord
[4] != IOERR_NO_XRI
) {
7171 spin_unlock_irq(&phba
->hbalock
);
7172 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7175 /* For SLI4 the ulpContext field for abort IOCB
7176 * holds the iotag of the IOCB being aborted so
7177 * the local abort_context needs to be reset to
7178 * match the aborted IOCBs ulpContext.
7180 if (abort_iocb
&& phba
->sli_rev
== LPFC_SLI_REV4
)
7181 abort_context
= abort_iocb
->iocb
.ulpContext
;
7184 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
7185 "0327 Cannot abort els iocb %p "
7186 "with tag %x context %x, abort status %x, "
7188 abort_iocb
, abort_iotag
, abort_context
,
7189 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7191 * make sure we have the right iocbq before taking it
7192 * off the txcmplq and try to call completion routine.
7195 abort_iocb
->iocb
.ulpContext
!= abort_context
||
7196 (abort_iocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) == 0)
7197 spin_unlock_irq(&phba
->hbalock
);
7198 else if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7200 * leave the SLI4 aborted command on the txcmplq
7201 * list and the command complete WCQE's XB bit
7202 * will tell whether the SGL (XRI) can be released
7203 * immediately or to the aborted SGL list for the
7204 * following abort XRI from the HBA.
7206 list_del_init(&abort_iocb
->list
);
7207 if (abort_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
7208 abort_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
7209 pring
->txcmplq_cnt
--;
7212 /* Firmware could still be in progress of DMAing
7213 * payload, so don't free data buffer till after
7216 abort_iocb
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
7217 abort_iocb
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
7218 spin_unlock_irq(&phba
->hbalock
);
7220 abort_iocb
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
7221 abort_iocb
->iocb
.un
.ulpWord
[4] = IOERR_ABORT_REQUESTED
;
7222 (abort_iocb
->iocb_cmpl
)(phba
, abort_iocb
, abort_iocb
);
7224 spin_unlock_irq(&phba
->hbalock
);
7227 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7232 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7233 * @phba: Pointer to HBA context object.
7234 * @cmdiocb: Pointer to driver command iocb object.
7235 * @rspiocb: Pointer to driver response iocb object.
7237 * The function is called from SLI ring event handler with no
7238 * lock held. This function is the completion handler for ELS commands
7239 * which are aborted. The function frees memory resources used for
7240 * the aborted ELS commands.
7243 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7244 struct lpfc_iocbq
*rspiocb
)
7246 IOCB_t
*irsp
= &rspiocb
->iocb
;
7248 /* ELS cmd tag <ulpIoTag> completes */
7249 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
7250 "0139 Ignoring ELS cmd tag x%x completion Data: "
7252 irsp
->ulpIoTag
, irsp
->ulpStatus
,
7253 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
7254 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
7255 lpfc_ct_free_iocb(phba
, cmdiocb
);
7257 lpfc_els_free_iocb(phba
, cmdiocb
);
7262 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7263 * @phba: Pointer to HBA context object.
7264 * @pring: Pointer to driver SLI ring object.
7265 * @cmdiocb: Pointer to driver command iocb object.
7267 * This function issues an abort iocb for the provided command
7268 * iocb. This function is called with hbalock held.
7269 * The function returns 0 when it fails due to memory allocation
7270 * failure or when the command iocb is an abort request.
7273 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7274 struct lpfc_iocbq
*cmdiocb
)
7276 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7277 struct lpfc_iocbq
*abtsiocbp
;
7278 IOCB_t
*icmd
= NULL
;
7279 IOCB_t
*iabt
= NULL
;
7280 int retval
= IOCB_ERROR
;
7283 * There are certain command types we don't want to abort. And we
7284 * don't want to abort commands that are already in the process of
7287 icmd
= &cmdiocb
->iocb
;
7288 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7289 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7290 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7293 /* If we're unloading, don't abort iocb on the ELS ring, but change the
7294 * callback so that nothing happens when it finishes.
7296 if ((vport
->load_flag
& FC_UNLOADING
) &&
7297 (pring
->ringno
== LPFC_ELS_RING
)) {
7298 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
7299 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
7301 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
7302 goto abort_iotag_exit
;
7305 /* issue ABTS for this IOCB based on iotag */
7306 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
7307 if (abtsiocbp
== NULL
)
7310 /* This signals the response to set the correct status
7311 * before calling the completion handler
7313 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
7315 iabt
= &abtsiocbp
->iocb
;
7316 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7317 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
7318 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7319 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
7320 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
7323 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
7325 iabt
->ulpClass
= icmd
->ulpClass
;
7327 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7328 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
7329 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
7330 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7332 if (phba
->link_state
>= LPFC_LINK_UP
)
7333 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
7335 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
7337 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
7339 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
7340 "0339 Abort xri x%x, original iotag x%x, "
7341 "abort cmd iotag x%x\n",
7342 iabt
->un
.acxri
.abortIoTag
,
7343 iabt
->un
.acxri
.abortContextTag
,
7345 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
, abtsiocbp
, 0);
7348 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
7351 * Caller to this routine should check for IOCB_ERROR
7352 * and handle it properly. This routine no longer removes
7353 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7359 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7360 * @iocbq: Pointer to driver iocb object.
7361 * @vport: Pointer to driver virtual port object.
7362 * @tgt_id: SCSI ID of the target.
7363 * @lun_id: LUN ID of the scsi device.
7364 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7366 * This function acts as an iocb filter for functions which abort or count
7367 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7368 * 0 if the filtering criteria is met for the given iocb and will return
7369 * 1 if the filtering criteria is not met.
7370 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7371 * given iocb is for the SCSI device specified by vport, tgt_id and
7373 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7374 * given iocb is for the SCSI target specified by vport and tgt_id
7376 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7377 * given iocb is for the SCSI host associated with the given vport.
7378 * This function is called with no locks held.
7381 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
7382 uint16_t tgt_id
, uint64_t lun_id
,
7383 lpfc_ctx_cmd ctx_cmd
)
7385 struct lpfc_scsi_buf
*lpfc_cmd
;
7388 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
7391 if (iocbq
->vport
!= vport
)
7394 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
7396 if (lpfc_cmd
->pCmd
== NULL
)
7401 if ((lpfc_cmd
->rdata
->pnode
) &&
7402 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
7403 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
7407 if ((lpfc_cmd
->rdata
->pnode
) &&
7408 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
7415 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
7424 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7425 * @vport: Pointer to virtual port.
7426 * @tgt_id: SCSI ID of the target.
7427 * @lun_id: LUN ID of the scsi device.
7428 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7430 * This function returns number of FCP commands pending for the vport.
7431 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7432 * commands pending on the vport associated with SCSI device specified
7433 * by tgt_id and lun_id parameters.
7434 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7435 * commands pending on the vport associated with SCSI target specified
7436 * by tgt_id parameter.
7437 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7438 * commands pending on the vport.
7439 * This function returns the number of iocbs which satisfy the filter.
7440 * This function is called without any lock held.
7443 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
7444 lpfc_ctx_cmd ctx_cmd
)
7446 struct lpfc_hba
*phba
= vport
->phba
;
7447 struct lpfc_iocbq
*iocbq
;
7450 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
7451 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7453 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
7462 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7463 * @phba: Pointer to HBA context object
7464 * @cmdiocb: Pointer to command iocb object.
7465 * @rspiocb: Pointer to response iocb object.
7467 * This function is called when an aborted FCP iocb completes. This
7468 * function is called by the ring event handler with no lock held.
7469 * This function frees the iocb.
7472 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7473 struct lpfc_iocbq
*rspiocb
)
7475 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7480 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7481 * @vport: Pointer to virtual port.
7482 * @pring: Pointer to driver SLI ring object.
7483 * @tgt_id: SCSI ID of the target.
7484 * @lun_id: LUN ID of the scsi device.
7485 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7487 * This function sends an abort command for every SCSI command
7488 * associated with the given virtual port pending on the ring
7489 * filtered by lpfc_sli_validate_fcp_iocb function.
7490 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
7491 * FCP iocbs associated with lun specified by tgt_id and lun_id
7493 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
7494 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
7495 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
7496 * FCP iocbs associated with virtual port.
7497 * This function returns number of iocbs it failed to abort.
7498 * This function is called with no locks held.
7501 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
7502 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
7504 struct lpfc_hba
*phba
= vport
->phba
;
7505 struct lpfc_iocbq
*iocbq
;
7506 struct lpfc_iocbq
*abtsiocb
;
7508 int errcnt
= 0, ret_val
= 0;
7511 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
7512 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7514 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
7518 /* issue ABTS for this IOCB based on iotag */
7519 abtsiocb
= lpfc_sli_get_iocbq(phba
);
7520 if (abtsiocb
== NULL
) {
7526 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7527 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
7528 if (phba
->sli_rev
== LPFC_SLI_REV4
)
7529 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
7531 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
7532 abtsiocb
->iocb
.ulpLe
= 1;
7533 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
7534 abtsiocb
->vport
= phba
->pport
;
7536 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7537 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
7538 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
7539 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7541 if (lpfc_is_link_up(phba
))
7542 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
7544 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
7546 /* Setup callback routine and issue the command. */
7547 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
7548 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
7550 if (ret_val
== IOCB_ERROR
) {
7551 lpfc_sli_release_iocbq(phba
, abtsiocb
);
7561 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
7562 * @phba: Pointer to HBA context object.
7563 * @cmdiocbq: Pointer to command iocb.
7564 * @rspiocbq: Pointer to response iocb.
7566 * This function is the completion handler for iocbs issued using
7567 * lpfc_sli_issue_iocb_wait function. This function is called by the
7568 * ring event handler function without any lock held. This function
7569 * can be called from both worker thread context and interrupt
7570 * context. This function also can be called from other thread which
7571 * cleans up the SLI layer objects.
7572 * This function copy the contents of the response iocb to the
7573 * response iocb memory object provided by the caller of
7574 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
7575 * sleeps for the iocb completion.
7578 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
7579 struct lpfc_iocbq
*cmdiocbq
,
7580 struct lpfc_iocbq
*rspiocbq
)
7582 wait_queue_head_t
*pdone_q
;
7583 unsigned long iflags
;
7584 struct lpfc_scsi_buf
*lpfc_cmd
;
7586 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7587 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
7588 if (cmdiocbq
->context2
&& rspiocbq
)
7589 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
7590 &rspiocbq
->iocb
, sizeof(IOCB_t
));
7592 /* Set the exchange busy flag for task management commands */
7593 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
7594 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
7595 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
7597 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
7600 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
7603 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7608 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
7609 * @phba: Pointer to HBA context object..
7610 * @piocbq: Pointer to command iocb.
7611 * @flag: Flag to test.
7613 * This routine grabs the hbalock and then test the iocb_flag to
7614 * see if the passed in flag is set.
7617 * 0 if flag is not set.
7620 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
7621 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
7623 unsigned long iflags
;
7626 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7627 ret
= piocbq
->iocb_flag
& flag
;
7628 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7634 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
7635 * @phba: Pointer to HBA context object..
7636 * @pring: Pointer to sli ring.
7637 * @piocb: Pointer to command iocb.
7638 * @prspiocbq: Pointer to response iocb.
7639 * @timeout: Timeout in number of seconds.
7641 * This function issues the iocb to firmware and waits for the
7642 * iocb to complete. If the iocb command is not
7643 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
7644 * Caller should not free the iocb resources if this function
7645 * returns IOCB_TIMEDOUT.
7646 * The function waits for the iocb completion using an
7647 * non-interruptible wait.
7648 * This function will sleep while waiting for iocb completion.
7649 * So, this function should not be called from any context which
7650 * does not allow sleeping. Due to the same reason, this function
7651 * cannot be called with interrupt disabled.
7652 * This function assumes that the iocb completions occur while
7653 * this function sleep. So, this function cannot be called from
7654 * the thread which process iocb completion for this ring.
7655 * This function clears the iocb_flag of the iocb object before
7656 * issuing the iocb and the iocb completion handler sets this
7657 * flag and wakes this thread when the iocb completes.
7658 * The contents of the response iocb will be copied to prspiocbq
7659 * by the completion handler when the command completes.
7660 * This function returns IOCB_SUCCESS when success.
7661 * This function is called with no lock held.
7664 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
7665 uint32_t ring_number
,
7666 struct lpfc_iocbq
*piocb
,
7667 struct lpfc_iocbq
*prspiocbq
,
7670 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7671 long timeleft
, timeout_req
= 0;
7672 int retval
= IOCB_SUCCESS
;
7674 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7676 * If the caller has provided a response iocbq buffer, then context2
7677 * is NULL or its an error.
7680 if (piocb
->context2
)
7682 piocb
->context2
= prspiocbq
;
7685 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
7686 piocb
->context_un
.wait_queue
= &done_q
;
7687 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
7689 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7690 creg_val
= readl(phba
->HCregaddr
);
7691 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
7692 writel(creg_val
, phba
->HCregaddr
);
7693 readl(phba
->HCregaddr
); /* flush */
7696 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
7698 if (retval
== IOCB_SUCCESS
) {
7699 timeout_req
= timeout
* HZ
;
7700 timeleft
= wait_event_timeout(done_q
,
7701 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
7704 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
7705 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7706 "0331 IOCB wake signaled\n");
7707 } else if (timeleft
== 0) {
7708 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7709 "0338 IOCB wait timeout error - no "
7710 "wake response Data x%x\n", timeout
);
7711 retval
= IOCB_TIMEDOUT
;
7713 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
7714 "0330 IOCB wake NOT set, "
7716 timeout
, (timeleft
/ jiffies
));
7717 retval
= IOCB_TIMEDOUT
;
7719 } else if (retval
== IOCB_BUSY
) {
7720 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7721 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
7722 phba
->iocb_cnt
, pring
->txq_cnt
, pring
->txcmplq_cnt
);
7725 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
7726 "0332 IOCB wait issue failed, Data x%x\n",
7728 retval
= IOCB_ERROR
;
7731 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
7732 creg_val
= readl(phba
->HCregaddr
);
7733 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
7734 writel(creg_val
, phba
->HCregaddr
);
7735 readl(phba
->HCregaddr
); /* flush */
7739 piocb
->context2
= NULL
;
7741 piocb
->context_un
.wait_queue
= NULL
;
7742 piocb
->iocb_cmpl
= NULL
;
7747 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
7748 * @phba: Pointer to HBA context object.
7749 * @pmboxq: Pointer to driver mailbox object.
7750 * @timeout: Timeout in number of seconds.
7752 * This function issues the mailbox to firmware and waits for the
7753 * mailbox command to complete. If the mailbox command is not
7754 * completed within timeout seconds, it returns MBX_TIMEOUT.
7755 * The function waits for the mailbox completion using an
7756 * interruptible wait. If the thread is woken up due to a
7757 * signal, MBX_TIMEOUT error is returned to the caller. Caller
7758 * should not free the mailbox resources, if this function returns
7760 * This function will sleep while waiting for mailbox completion.
7761 * So, this function should not be called from any context which
7762 * does not allow sleeping. Due to the same reason, this function
7763 * cannot be called with interrupt disabled.
7764 * This function assumes that the mailbox completion occurs while
7765 * this function sleep. So, this function cannot be called from
7766 * the worker thread which processes mailbox completion.
7767 * This function is called in the context of HBA management
7769 * This function returns MBX_SUCCESS when successful.
7770 * This function is called with no lock held.
7773 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
7776 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
7780 /* The caller must leave context1 empty. */
7781 if (pmboxq
->context1
)
7782 return MBX_NOT_FINISHED
;
7784 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
7785 /* setup wake call as IOCB callback */
7786 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
7787 /* setup context field to pass wait_queue pointer to wake function */
7788 pmboxq
->context1
= &done_q
;
7790 /* now issue the command */
7791 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
7793 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
7794 wait_event_interruptible_timeout(done_q
,
7795 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
7798 spin_lock_irqsave(&phba
->hbalock
, flag
);
7799 pmboxq
->context1
= NULL
;
7801 * if LPFC_MBX_WAKE flag is set the mailbox is completed
7802 * else do not free the resources.
7804 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
7805 retval
= MBX_SUCCESS
;
7806 lpfc_sli4_swap_str(phba
, pmboxq
);
7808 retval
= MBX_TIMEOUT
;
7809 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
7811 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
7818 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
7819 * @phba: Pointer to HBA context.
7821 * This function is called to shutdown the driver's mailbox sub-system.
7822 * It first marks the mailbox sub-system is in a block state to prevent
7823 * the asynchronous mailbox command from issued off the pending mailbox
7824 * command queue. If the mailbox command sub-system shutdown is due to
7825 * HBA error conditions such as EEH or ERATT, this routine shall invoke
7826 * the mailbox sub-system flush routine to forcefully bring down the
7827 * mailbox sub-system. Otherwise, if it is due to normal condition (such
7828 * as with offline or HBA function reset), this routine will wait for the
7829 * outstanding mailbox command to complete before invoking the mailbox
7830 * sub-system flush routine to gracefully bring down mailbox sub-system.
7833 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
)
7835 struct lpfc_sli
*psli
= &phba
->sli
;
7836 uint8_t actcmd
= MBX_HEARTBEAT
;
7837 unsigned long timeout
;
7839 spin_lock_irq(&phba
->hbalock
);
7840 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7841 spin_unlock_irq(&phba
->hbalock
);
7843 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7844 spin_lock_irq(&phba
->hbalock
);
7845 if (phba
->sli
.mbox_active
)
7846 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
7847 spin_unlock_irq(&phba
->hbalock
);
7848 /* Determine how long we might wait for the active mailbox
7849 * command to be gracefully completed by firmware.
7851 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) *
7853 while (phba
->sli
.mbox_active
) {
7854 /* Check active mailbox complete status every 2ms */
7856 if (time_after(jiffies
, timeout
))
7857 /* Timeout, let the mailbox flush routine to
7858 * forcefully release active mailbox command
7863 lpfc_sli_mbox_sys_flush(phba
);
7867 * lpfc_sli_eratt_read - read sli-3 error attention events
7868 * @phba: Pointer to HBA context.
7870 * This function is called to read the SLI3 device error attention registers
7871 * for possible error attention events. The caller must hold the hostlock
7872 * with spin_lock_irq().
7874 * This fucntion returns 1 when there is Error Attention in the Host Attention
7875 * Register and returns 0 otherwise.
7878 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
7882 /* Read chip Host Attention (HA) register */
7883 ha_copy
= readl(phba
->HAregaddr
);
7884 if (ha_copy
& HA_ERATT
) {
7885 /* Read host status register to retrieve error event */
7886 lpfc_sli_read_hs(phba
);
7888 /* Check if there is a deferred error condition is active */
7889 if ((HS_FFER1
& phba
->work_hs
) &&
7890 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
7891 HS_FFER6
| HS_FFER7
) & phba
->work_hs
)) {
7892 phba
->hba_flag
|= DEFER_ERATT
;
7893 /* Clear all interrupt enable conditions */
7894 writel(0, phba
->HCregaddr
);
7895 readl(phba
->HCregaddr
);
7898 /* Set the driver HA work bitmap */
7899 phba
->work_ha
|= HA_ERATT
;
7900 /* Indicate polling handles this ERATT */
7901 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7908 * lpfc_sli4_eratt_read - read sli-4 error attention events
7909 * @phba: Pointer to HBA context.
7911 * This function is called to read the SLI4 device error attention registers
7912 * for possible error attention events. The caller must hold the hostlock
7913 * with spin_lock_irq().
7915 * This fucntion returns 1 when there is Error Attention in the Host Attention
7916 * Register and returns 0 otherwise.
7919 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
7921 uint32_t uerr_sta_hi
, uerr_sta_lo
;
7923 /* For now, use the SLI4 device internal unrecoverable error
7924 * registers for error attention. This can be changed later.
7926 uerr_sta_lo
= readl(phba
->sli4_hba
.UERRLOregaddr
);
7927 uerr_sta_hi
= readl(phba
->sli4_hba
.UERRHIregaddr
);
7928 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
7929 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
7930 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7931 "1423 HBA Unrecoverable error: "
7932 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
7933 "ue_mask_lo_reg=0x%x, ue_mask_hi_reg=0x%x\n",
7934 uerr_sta_lo
, uerr_sta_hi
,
7935 phba
->sli4_hba
.ue_mask_lo
,
7936 phba
->sli4_hba
.ue_mask_hi
);
7937 phba
->work_status
[0] = uerr_sta_lo
;
7938 phba
->work_status
[1] = uerr_sta_hi
;
7939 /* Set the driver HA work bitmap */
7940 phba
->work_ha
|= HA_ERATT
;
7941 /* Indicate polling handles this ERATT */
7942 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
7949 * lpfc_sli_check_eratt - check error attention events
7950 * @phba: Pointer to HBA context.
7952 * This function is called from timer soft interrupt context to check HBA's
7953 * error attention register bit for error attention events.
7955 * This fucntion returns 1 when there is Error Attention in the Host Attention
7956 * Register and returns 0 otherwise.
7959 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
7963 /* If somebody is waiting to handle an eratt, don't process it
7964 * here. The brdkill function will do this.
7966 if (phba
->link_flag
& LS_IGNORE_ERATT
)
7969 /* Check if interrupt handler handles this ERATT */
7970 spin_lock_irq(&phba
->hbalock
);
7971 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
7972 /* Interrupt handler has handled ERATT */
7973 spin_unlock_irq(&phba
->hbalock
);
7978 * If there is deferred error attention, do not check for error
7981 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
7982 spin_unlock_irq(&phba
->hbalock
);
7986 /* If PCI channel is offline, don't process it */
7987 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
7988 spin_unlock_irq(&phba
->hbalock
);
7992 switch (phba
->sli_rev
) {
7995 /* Read chip Host Attention (HA) register */
7996 ha_copy
= lpfc_sli_eratt_read(phba
);
7999 /* Read devcie Uncoverable Error (UERR) registers */
8000 ha_copy
= lpfc_sli4_eratt_read(phba
);
8003 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8004 "0299 Invalid SLI revision (%d)\n",
8009 spin_unlock_irq(&phba
->hbalock
);
8015 * lpfc_intr_state_check - Check device state for interrupt handling
8016 * @phba: Pointer to HBA context.
8018 * This inline routine checks whether a device or its PCI slot is in a state
8019 * that the interrupt should be handled.
8021 * This function returns 0 if the device or the PCI slot is in a state that
8022 * interrupt should be handled, otherwise -EIO.
8025 lpfc_intr_state_check(struct lpfc_hba
*phba
)
8027 /* If the pci channel is offline, ignore all the interrupts */
8028 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8031 /* Update device level interrupt statistics */
8032 phba
->sli
.slistat
.sli_intr
++;
8034 /* Ignore all interrupts during initialization. */
8035 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8042 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
8043 * @irq: Interrupt number.
8044 * @dev_id: The device context pointer.
8046 * This function is directly called from the PCI layer as an interrupt
8047 * service routine when device with SLI-3 interface spec is enabled with
8048 * MSI-X multi-message interrupt mode and there are slow-path events in
8049 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8050 * interrupt mode, this function is called as part of the device-level
8051 * interrupt handler. When the PCI slot is in error recovery or the HBA
8052 * is undergoing initialization, the interrupt handler will not process
8053 * the interrupt. The link attention and ELS ring attention events are
8054 * handled by the worker thread. The interrupt handler signals the worker
8055 * thread and returns for these events. This function is called without
8056 * any lock held. It gets the hbalock to access and update SLI data
8059 * This function returns IRQ_HANDLED when interrupt is handled else it
8063 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
8065 struct lpfc_hba
*phba
;
8066 uint32_t ha_copy
, hc_copy
;
8067 uint32_t work_ha_copy
;
8068 unsigned long status
;
8069 unsigned long iflag
;
8072 MAILBOX_t
*mbox
, *pmbox
;
8073 struct lpfc_vport
*vport
;
8074 struct lpfc_nodelist
*ndlp
;
8075 struct lpfc_dmabuf
*mp
;
8080 * Get the driver's phba structure from the dev_id and
8081 * assume the HBA is not interrupting.
8083 phba
= (struct lpfc_hba
*)dev_id
;
8085 if (unlikely(!phba
))
8089 * Stuff needs to be attented to when this function is invoked as an
8090 * individual interrupt handler in MSI-X multi-message interrupt mode
8092 if (phba
->intr_type
== MSIX
) {
8093 /* Check device state for handling interrupt */
8094 if (lpfc_intr_state_check(phba
))
8096 /* Need to read HA REG for slow-path events */
8097 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8098 ha_copy
= readl(phba
->HAregaddr
);
8099 /* If somebody is waiting to handle an eratt don't process it
8100 * here. The brdkill function will do this.
8102 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8103 ha_copy
&= ~HA_ERATT
;
8104 /* Check the need for handling ERATT in interrupt handler */
8105 if (ha_copy
& HA_ERATT
) {
8106 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8107 /* ERATT polling has handled ERATT */
8108 ha_copy
&= ~HA_ERATT
;
8110 /* Indicate interrupt handler handles ERATT */
8111 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8115 * If there is deferred error attention, do not check for any
8118 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8119 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8123 /* Clear up only attention source related to slow-path */
8124 hc_copy
= readl(phba
->HCregaddr
);
8125 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
8126 HC_LAINT_ENA
| HC_ERINT_ENA
),
8128 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
8130 writel(hc_copy
, phba
->HCregaddr
);
8131 readl(phba
->HAregaddr
); /* flush */
8132 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8134 ha_copy
= phba
->ha_copy
;
8136 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
8139 if (work_ha_copy
& HA_LATT
) {
8140 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
8142 * Turn off Link Attention interrupts
8143 * until CLEAR_LA done
8145 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8146 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
8147 control
= readl(phba
->HCregaddr
);
8148 control
&= ~HC_LAINT_ENA
;
8149 writel(control
, phba
->HCregaddr
);
8150 readl(phba
->HCregaddr
); /* flush */
8151 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8154 work_ha_copy
&= ~HA_LATT
;
8157 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
8159 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8160 * the only slow ring.
8162 status
= (work_ha_copy
&
8163 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8164 status
>>= (4*LPFC_ELS_RING
);
8165 if (status
& HA_RXMASK
) {
8166 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8167 control
= readl(phba
->HCregaddr
);
8169 lpfc_debugfs_slow_ring_trc(phba
,
8170 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8172 (uint32_t)phba
->sli
.slistat
.sli_intr
);
8174 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
8175 lpfc_debugfs_slow_ring_trc(phba
,
8177 "pwork:x%x hawork:x%x wait:x%x",
8178 phba
->work_ha
, work_ha_copy
,
8179 (uint32_t)((unsigned long)
8180 &phba
->work_waitq
));
8183 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
8184 writel(control
, phba
->HCregaddr
);
8185 readl(phba
->HCregaddr
); /* flush */
8188 lpfc_debugfs_slow_ring_trc(phba
,
8189 "ISR slow ring: pwork:"
8190 "x%x hawork:x%x wait:x%x",
8191 phba
->work_ha
, work_ha_copy
,
8192 (uint32_t)((unsigned long)
8193 &phba
->work_waitq
));
8195 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8198 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8199 if (work_ha_copy
& HA_ERATT
) {
8200 lpfc_sli_read_hs(phba
);
8202 * Check if there is a deferred error condition
8205 if ((HS_FFER1
& phba
->work_hs
) &&
8206 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8207 HS_FFER6
| HS_FFER7
) & phba
->work_hs
)) {
8208 phba
->hba_flag
|= DEFER_ERATT
;
8209 /* Clear all interrupt enable conditions */
8210 writel(0, phba
->HCregaddr
);
8211 readl(phba
->HCregaddr
);
8215 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
8216 pmb
= phba
->sli
.mbox_active
;
8221 /* First check out the status word */
8222 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
8223 if (pmbox
->mbxOwner
!= OWN_HOST
) {
8224 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8226 * Stray Mailbox Interrupt, mbxCommand <cmd>
8227 * mbxStatus <status>
8229 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8231 "(%d):0304 Stray Mailbox "
8232 "Interrupt mbxCommand x%x "
8234 (vport
? vport
->vpi
: 0),
8237 /* clear mailbox attention bit */
8238 work_ha_copy
&= ~HA_MBATT
;
8240 phba
->sli
.mbox_active
= NULL
;
8241 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8242 phba
->last_completion_time
= jiffies
;
8243 del_timer(&phba
->sli
.mbox_tmo
);
8244 if (pmb
->mbox_cmpl
) {
8245 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
8247 if (pmb
->out_ext_byte_len
&&
8249 lpfc_sli_pcimem_bcopy(
8252 pmb
->out_ext_byte_len
);
8254 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8255 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8257 lpfc_debugfs_disc_trc(vport
,
8258 LPFC_DISC_TRC_MBOX_VPORT
,
8260 "status:x%x rpi:x%x",
8261 (uint32_t)pmbox
->mbxStatus
,
8262 pmbox
->un
.varWords
[0], 0);
8264 if (!pmbox
->mbxStatus
) {
8265 mp
= (struct lpfc_dmabuf
*)
8267 ndlp
= (struct lpfc_nodelist
*)
8270 /* Reg_LOGIN of dflt RPI was
8271 * successful. new lets get
8272 * rid of the RPI using the
8275 lpfc_unreg_login(phba
,
8277 pmbox
->un
.varWords
[0],
8280 lpfc_mbx_cmpl_dflt_rpi
;
8282 pmb
->context2
= ndlp
;
8284 rc
= lpfc_sli_issue_mbox(phba
,
8288 lpfc_printf_log(phba
,
8291 "0350 rc should have"
8293 if (rc
!= MBX_NOT_FINISHED
)
8294 goto send_current_mbox
;
8298 &phba
->pport
->work_port_lock
,
8300 phba
->pport
->work_port_events
&=
8302 spin_unlock_irqrestore(
8303 &phba
->pport
->work_port_lock
,
8305 lpfc_mbox_cmpl_put(phba
, pmb
);
8308 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8310 if ((work_ha_copy
& HA_MBATT
) &&
8311 (phba
->sli
.mbox_active
== NULL
)) {
8313 /* Process next mailbox command if there is one */
8315 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
8317 } while (rc
== MBX_NOT_FINISHED
);
8318 if (rc
!= MBX_SUCCESS
)
8319 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8320 LOG_SLI
, "0349 rc should be "
8324 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8325 phba
->work_ha
|= work_ha_copy
;
8326 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8327 lpfc_worker_wake_up(phba
);
8331 } /* lpfc_sli_sp_intr_handler */
8334 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8335 * @irq: Interrupt number.
8336 * @dev_id: The device context pointer.
8338 * This function is directly called from the PCI layer as an interrupt
8339 * service routine when device with SLI-3 interface spec is enabled with
8340 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8341 * ring event in the HBA. However, when the device is enabled with either
8342 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8343 * device-level interrupt handler. When the PCI slot is in error recovery
8344 * or the HBA is undergoing initialization, the interrupt handler will not
8345 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8346 * the intrrupt context. This function is called without any lock held.
8347 * It gets the hbalock to access and update SLI data structures.
8349 * This function returns IRQ_HANDLED when interrupt is handled else it
8353 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
8355 struct lpfc_hba
*phba
;
8357 unsigned long status
;
8358 unsigned long iflag
;
8360 /* Get the driver's phba structure from the dev_id and
8361 * assume the HBA is not interrupting.
8363 phba
= (struct lpfc_hba
*) dev_id
;
8365 if (unlikely(!phba
))
8369 * Stuff needs to be attented to when this function is invoked as an
8370 * individual interrupt handler in MSI-X multi-message interrupt mode
8372 if (phba
->intr_type
== MSIX
) {
8373 /* Check device state for handling interrupt */
8374 if (lpfc_intr_state_check(phba
))
8376 /* Need to read HA REG for FCP ring and other ring events */
8377 ha_copy
= readl(phba
->HAregaddr
);
8378 /* Clear up only attention source related to fast-path */
8379 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8381 * If there is deferred error attention, do not check for
8384 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8385 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8388 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
8390 readl(phba
->HAregaddr
); /* flush */
8391 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8393 ha_copy
= phba
->ha_copy
;
8396 * Process all events on FCP ring. Take the optimized path for FCP IO.
8398 ha_copy
&= ~(phba
->work_ha_mask
);
8400 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8401 status
>>= (4*LPFC_FCP_RING
);
8402 if (status
& HA_RXMASK
)
8403 lpfc_sli_handle_fast_ring_event(phba
,
8404 &phba
->sli
.ring
[LPFC_FCP_RING
],
8407 if (phba
->cfg_multi_ring_support
== 2) {
8409 * Process all events on extra ring. Take the optimized path
8410 * for extra ring IO.
8412 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8413 status
>>= (4*LPFC_EXTRA_RING
);
8414 if (status
& HA_RXMASK
) {
8415 lpfc_sli_handle_fast_ring_event(phba
,
8416 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
8421 } /* lpfc_sli_fp_intr_handler */
8424 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8425 * @irq: Interrupt number.
8426 * @dev_id: The device context pointer.
8428 * This function is the HBA device-level interrupt handler to device with
8429 * SLI-3 interface spec, called from the PCI layer when either MSI or
8430 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8431 * requires driver attention. This function invokes the slow-path interrupt
8432 * attention handling function and fast-path interrupt attention handling
8433 * function in turn to process the relevant HBA attention events. This
8434 * function is called without any lock held. It gets the hbalock to access
8435 * and update SLI data structures.
8437 * This function returns IRQ_HANDLED when interrupt is handled, else it
8441 lpfc_sli_intr_handler(int irq
, void *dev_id
)
8443 struct lpfc_hba
*phba
;
8444 irqreturn_t sp_irq_rc
, fp_irq_rc
;
8445 unsigned long status1
, status2
;
8449 * Get the driver's phba structure from the dev_id and
8450 * assume the HBA is not interrupting.
8452 phba
= (struct lpfc_hba
*) dev_id
;
8454 if (unlikely(!phba
))
8457 /* Check device state for handling interrupt */
8458 if (lpfc_intr_state_check(phba
))
8461 spin_lock(&phba
->hbalock
);
8462 phba
->ha_copy
= readl(phba
->HAregaddr
);
8463 if (unlikely(!phba
->ha_copy
)) {
8464 spin_unlock(&phba
->hbalock
);
8466 } else if (phba
->ha_copy
& HA_ERATT
) {
8467 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8468 /* ERATT polling has handled ERATT */
8469 phba
->ha_copy
&= ~HA_ERATT
;
8471 /* Indicate interrupt handler handles ERATT */
8472 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8476 * If there is deferred error attention, do not check for any interrupt.
8478 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8479 spin_unlock_irq(&phba
->hbalock
);
8483 /* Clear attention sources except link and error attentions */
8484 hc_copy
= readl(phba
->HCregaddr
);
8485 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
8486 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
8488 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
8489 writel(hc_copy
, phba
->HCregaddr
);
8490 readl(phba
->HAregaddr
); /* flush */
8491 spin_unlock(&phba
->hbalock
);
8494 * Invokes slow-path host attention interrupt handling as appropriate.
8497 /* status of events with mailbox and link attention */
8498 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
8500 /* status of events with ELS ring */
8501 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8502 status2
>>= (4*LPFC_ELS_RING
);
8504 if (status1
|| (status2
& HA_RXMASK
))
8505 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
8507 sp_irq_rc
= IRQ_NONE
;
8510 * Invoke fast-path host attention interrupt handling as appropriate.
8513 /* status of events with FCP ring */
8514 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8515 status1
>>= (4*LPFC_FCP_RING
);
8517 /* status of events with extra ring */
8518 if (phba
->cfg_multi_ring_support
== 2) {
8519 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8520 status2
>>= (4*LPFC_EXTRA_RING
);
8524 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
8525 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
8527 fp_irq_rc
= IRQ_NONE
;
8529 /* Return device-level interrupt handling status */
8530 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
8531 } /* lpfc_sli_intr_handler */
8534 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
8535 * @phba: pointer to lpfc hba data structure.
8537 * This routine is invoked by the worker thread to process all the pending
8538 * SLI4 FCP abort XRI events.
8540 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
8542 struct lpfc_cq_event
*cq_event
;
8544 /* First, declare the fcp xri abort event has been handled */
8545 spin_lock_irq(&phba
->hbalock
);
8546 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
8547 spin_unlock_irq(&phba
->hbalock
);
8548 /* Now, handle all the fcp xri abort events */
8549 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
8550 /* Get the first event from the head of the event queue */
8551 spin_lock_irq(&phba
->hbalock
);
8552 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
8553 cq_event
, struct lpfc_cq_event
, list
);
8554 spin_unlock_irq(&phba
->hbalock
);
8555 /* Notify aborted XRI for FCP work queue */
8556 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8557 /* Free the event processed back to the free pool */
8558 lpfc_sli4_cq_event_release(phba
, cq_event
);
8563 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
8564 * @phba: pointer to lpfc hba data structure.
8566 * This routine is invoked by the worker thread to process all the pending
8567 * SLI4 els abort xri events.
8569 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
8571 struct lpfc_cq_event
*cq_event
;
8573 /* First, declare the els xri abort event has been handled */
8574 spin_lock_irq(&phba
->hbalock
);
8575 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
8576 spin_unlock_irq(&phba
->hbalock
);
8577 /* Now, handle all the els xri abort events */
8578 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
8579 /* Get the first event from the head of the event queue */
8580 spin_lock_irq(&phba
->hbalock
);
8581 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
8582 cq_event
, struct lpfc_cq_event
, list
);
8583 spin_unlock_irq(&phba
->hbalock
);
8584 /* Notify aborted XRI for ELS work queue */
8585 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
8586 /* Free the event processed back to the free pool */
8587 lpfc_sli4_cq_event_release(phba
, cq_event
);
8592 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
8593 * @phba: pointer to lpfc hba data structure
8594 * @pIocbIn: pointer to the rspiocbq
8595 * @pIocbOut: pointer to the cmdiocbq
8596 * @wcqe: pointer to the complete wcqe
8598 * This routine transfers the fields of a command iocbq to a response iocbq
8599 * by copying all the IOCB fields from command iocbq and transferring the
8600 * completion status information from the complete wcqe.
8603 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
8604 struct lpfc_iocbq
*pIocbIn
,
8605 struct lpfc_iocbq
*pIocbOut
,
8606 struct lpfc_wcqe_complete
*wcqe
)
8608 unsigned long iflags
;
8609 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
8611 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
8612 sizeof(struct lpfc_iocbq
) - offset
);
8613 /* Map WCQE parameters into irspiocb parameters */
8614 pIocbIn
->iocb
.ulpStatus
= bf_get(lpfc_wcqe_c_status
, wcqe
);
8615 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
8616 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
8617 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
8618 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
8619 wcqe
->total_data_placed
;
8621 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8623 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
8624 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
8627 /* Pick up HBA exchange busy condition */
8628 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
8629 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8630 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
8631 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8636 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
8637 * @phba: Pointer to HBA context object.
8638 * @wcqe: Pointer to work-queue completion queue entry.
8640 * This routine handles an ELS work-queue completion event and construct
8641 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
8642 * discovery engine to handle.
8644 * Return: Pointer to the receive IOCBQ, NULL otherwise.
8646 static struct lpfc_iocbq
*
8647 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
8648 struct lpfc_iocbq
*irspiocbq
)
8650 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8651 struct lpfc_iocbq
*cmdiocbq
;
8652 struct lpfc_wcqe_complete
*wcqe
;
8653 unsigned long iflags
;
8655 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
8656 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8657 pring
->stats
.iocb_event
++;
8658 /* Look up the ELS command IOCB and create pseudo response IOCB */
8659 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
8660 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8661 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8663 if (unlikely(!cmdiocbq
)) {
8664 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8665 "0386 ELS complete with no corresponding "
8666 "cmdiocb: iotag (%d)\n",
8667 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
8668 lpfc_sli_release_iocbq(phba
, irspiocbq
);
8672 /* Fake the irspiocbq and copy necessary response information */
8673 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
8679 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
8680 * @phba: Pointer to HBA context object.
8681 * @cqe: Pointer to mailbox completion queue entry.
8683 * This routine process a mailbox completion queue entry with asynchrous
8686 * Return: true if work posted to worker thread, otherwise false.
8689 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8691 struct lpfc_cq_event
*cq_event
;
8692 unsigned long iflags
;
8694 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8695 "0392 Async Event: word0:x%x, word1:x%x, "
8696 "word2:x%x, word3:x%x\n", mcqe
->word0
,
8697 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
8699 /* Allocate a new internal CQ_EVENT entry */
8700 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8702 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8703 "0394 Failed to allocate CQ_EVENT entry\n");
8707 /* Move the CQE into an asynchronous event entry */
8708 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
8709 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8710 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
8711 /* Set the async event flag */
8712 phba
->hba_flag
|= ASYNC_EVENT
;
8713 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8719 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
8720 * @phba: Pointer to HBA context object.
8721 * @cqe: Pointer to mailbox completion queue entry.
8723 * This routine process a mailbox completion queue entry with mailbox
8726 * Return: true if work posted to worker thread, otherwise false.
8729 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
8731 uint32_t mcqe_status
;
8732 MAILBOX_t
*mbox
, *pmbox
;
8733 struct lpfc_mqe
*mqe
;
8734 struct lpfc_vport
*vport
;
8735 struct lpfc_nodelist
*ndlp
;
8736 struct lpfc_dmabuf
*mp
;
8737 unsigned long iflags
;
8739 bool workposted
= false;
8742 /* If not a mailbox complete MCQE, out by checking mailbox consume */
8743 if (!bf_get(lpfc_trailer_completed
, mcqe
))
8744 goto out_no_mqe_complete
;
8746 /* Get the reference to the active mbox command */
8747 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8748 pmb
= phba
->sli
.mbox_active
;
8749 if (unlikely(!pmb
)) {
8750 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
8751 "1832 No pending MBOX command to handle\n");
8752 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8753 goto out_no_mqe_complete
;
8755 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8757 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
8761 /* Reset heartbeat timer */
8762 phba
->last_completion_time
= jiffies
;
8763 del_timer(&phba
->sli
.mbox_tmo
);
8765 /* Move mbox data to caller's mailbox region, do endian swapping */
8766 if (pmb
->mbox_cmpl
&& mbox
)
8767 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
8768 /* Set the mailbox status with SLI4 range 0x4000 */
8769 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
8770 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
)
8771 bf_set(lpfc_mqe_status
, mqe
,
8772 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
8774 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8775 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8776 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
8777 "MBOX dflt rpi: status:x%x rpi:x%x",
8779 pmbox
->un
.varWords
[0], 0);
8780 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
8781 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
8782 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
8783 /* Reg_LOGIN of dflt RPI was successful. Now lets get
8784 * RID of the PPI using the same mbox buffer.
8786 lpfc_unreg_login(phba
, vport
->vpi
,
8787 pmbox
->un
.varWords
[0], pmb
);
8788 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
8790 pmb
->context2
= ndlp
;
8792 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
8794 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8795 LOG_SLI
, "0385 rc should "
8796 "have been MBX_BUSY\n");
8797 if (rc
!= MBX_NOT_FINISHED
)
8798 goto send_current_mbox
;
8801 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
8802 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
8803 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
8805 /* There is mailbox completion work to do */
8806 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8807 __lpfc_mbox_cmpl_put(phba
, pmb
);
8808 phba
->work_ha
|= HA_MBATT
;
8809 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8813 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8814 /* Release the mailbox command posting token */
8815 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
8816 /* Setting active mailbox pointer need to be in sync to flag clear */
8817 phba
->sli
.mbox_active
= NULL
;
8818 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8819 /* Wake up worker thread to post the next pending mailbox command */
8820 lpfc_worker_wake_up(phba
);
8821 out_no_mqe_complete
:
8822 if (bf_get(lpfc_trailer_consumed
, mcqe
))
8823 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
8828 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
8829 * @phba: Pointer to HBA context object.
8830 * @cqe: Pointer to mailbox completion queue entry.
8832 * This routine process a mailbox completion queue entry, it invokes the
8833 * proper mailbox complete handling or asynchrous event handling routine
8834 * according to the MCQE's async bit.
8836 * Return: true if work posted to worker thread, otherwise false.
8839 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
8841 struct lpfc_mcqe mcqe
;
8844 /* Copy the mailbox MCQE and convert endian order as needed */
8845 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
8847 /* Invoke the proper event handling routine */
8848 if (!bf_get(lpfc_trailer_async
, &mcqe
))
8849 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
8851 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
8856 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
8857 * @phba: Pointer to HBA context object.
8858 * @wcqe: Pointer to work-queue completion queue entry.
8860 * This routine handles an ELS work-queue completion event.
8862 * Return: true if work posted to worker thread, otherwise false.
8865 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
,
8866 struct lpfc_wcqe_complete
*wcqe
)
8868 struct lpfc_iocbq
*irspiocbq
;
8869 unsigned long iflags
;
8870 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
8872 /* Get an irspiocbq for later ELS response processing use */
8873 irspiocbq
= lpfc_sli_get_iocbq(phba
);
8875 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8876 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
8877 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
8878 pring
->txq_cnt
, phba
->iocb_cnt
,
8879 phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq_cnt
,
8880 phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
);
8884 /* Save off the slow-path queue event for work thread to process */
8885 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
8886 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8887 list_add_tail(&irspiocbq
->cq_event
.list
,
8888 &phba
->sli4_hba
.sp_queue_event
);
8889 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
8890 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8896 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
8897 * @phba: Pointer to HBA context object.
8898 * @wcqe: Pointer to work-queue completion queue entry.
8900 * This routine handles slow-path WQ entry comsumed event by invoking the
8901 * proper WQ release routine to the slow-path WQ.
8904 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
8905 struct lpfc_wcqe_release
*wcqe
)
8907 /* Check for the slow-path ELS work queue */
8908 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
8909 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
8910 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
8912 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8913 "2579 Slow-path wqe consume event carries "
8914 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
8915 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
8916 phba
->sli4_hba
.els_wq
->queue_id
);
8920 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
8921 * @phba: Pointer to HBA context object.
8922 * @cq: Pointer to a WQ completion queue.
8923 * @wcqe: Pointer to work-queue completion queue entry.
8925 * This routine handles an XRI abort event.
8927 * Return: true if work posted to worker thread, otherwise false.
8930 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
8931 struct lpfc_queue
*cq
,
8932 struct sli4_wcqe_xri_aborted
*wcqe
)
8934 bool workposted
= false;
8935 struct lpfc_cq_event
*cq_event
;
8936 unsigned long iflags
;
8938 /* Allocate a new internal CQ_EVENT entry */
8939 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
8941 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8942 "0602 Failed to allocate CQ_EVENT entry\n");
8946 /* Move the CQE into the proper xri abort event list */
8947 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
8948 switch (cq
->subtype
) {
8950 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8951 list_add_tail(&cq_event
->list
,
8952 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
8953 /* Set the fcp xri abort event flag */
8954 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
8955 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8959 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8960 list_add_tail(&cq_event
->list
,
8961 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
8962 /* Set the els xri abort event flag */
8963 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
8964 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8968 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8969 "0603 Invalid work queue CQE subtype (x%x)\n",
8978 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
8979 * @phba: Pointer to HBA context object.
8980 * @rcqe: Pointer to receive-queue completion queue entry.
8982 * This routine process a receive-queue completion queue entry.
8984 * Return: true if work posted to worker thread, otherwise false.
8987 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
8989 bool workposted
= false;
8990 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
8991 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
8992 struct hbq_dmabuf
*dma_buf
;
8994 unsigned long iflags
;
8996 if (bf_get(lpfc_rcqe_rq_id
, rcqe
) != hrq
->queue_id
)
8999 status
= bf_get(lpfc_rcqe_status
, rcqe
);
9001 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
9002 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9003 "2537 Receive Frame Truncated!!\n");
9004 case FC_STATUS_RQ_SUCCESS
:
9005 lpfc_sli4_rq_release(hrq
, drq
);
9006 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9007 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
9009 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9012 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
9013 /* save off the frame for the word thread to process */
9014 list_add_tail(&dma_buf
->cq_event
.list
,
9015 &phba
->sli4_hba
.sp_queue_event
);
9016 /* Frame received */
9017 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9018 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9021 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
9022 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
9023 /* Post more buffers if possible */
9024 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9025 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
9026 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9035 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9036 * @phba: Pointer to HBA context object.
9037 * @cq: Pointer to the completion queue.
9038 * @wcqe: Pointer to a completion queue entry.
9040 * This routine process a slow-path work-queue or recieve queue completion queue
9043 * Return: true if work posted to worker thread, otherwise false.
9046 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9047 struct lpfc_cqe
*cqe
)
9049 struct lpfc_cqe cqevt
;
9050 bool workposted
= false;
9052 /* Copy the work queue CQE and convert endian order if needed */
9053 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
9055 /* Check and process for different type of WCQE and dispatch */
9056 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
9057 case CQE_CODE_COMPL_WQE
:
9058 /* Process the WQ/RQ complete event */
9059 phba
->last_completion_time
= jiffies
;
9060 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
,
9061 (struct lpfc_wcqe_complete
*)&cqevt
);
9063 case CQE_CODE_RELEASE_WQE
:
9064 /* Process the WQ release event */
9065 lpfc_sli4_sp_handle_rel_wcqe(phba
,
9066 (struct lpfc_wcqe_release
*)&cqevt
);
9068 case CQE_CODE_XRI_ABORTED
:
9069 /* Process the WQ XRI abort event */
9070 phba
->last_completion_time
= jiffies
;
9071 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9072 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
9074 case CQE_CODE_RECEIVE
:
9075 /* Process the RQ event */
9076 phba
->last_completion_time
= jiffies
;
9077 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
9078 (struct lpfc_rcqe
*)&cqevt
);
9081 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9082 "0388 Not a valid WCQE code: x%x\n",
9083 bf_get(lpfc_cqe_code
, &cqevt
));
9090 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9091 * @phba: Pointer to HBA context object.
9092 * @eqe: Pointer to fast-path event queue entry.
9094 * This routine process a event queue entry from the slow-path event queue.
9095 * It will check the MajorCode and MinorCode to determine this is for a
9096 * completion event on a completion queue, if not, an error shall be logged
9097 * and just return. Otherwise, it will get to the corresponding completion
9098 * queue and process all the entries on that completion queue, rearm the
9099 * completion queue, and then return.
9103 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
9105 struct lpfc_queue
*cq
= NULL
, *childq
, *speq
;
9106 struct lpfc_cqe
*cqe
;
9107 bool workposted
= false;
9111 if (bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0) {
9112 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9113 "0359 Not a valid slow-path completion "
9114 "event: majorcode=x%x, minorcode=x%x\n",
9115 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9116 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9120 /* Get the reference to the corresponding CQ */
9121 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9123 /* Search for completion queue pointer matching this cqid */
9124 speq
= phba
->sli4_hba
.sp_eq
;
9125 list_for_each_entry(childq
, &speq
->child_list
, list
) {
9126 if (childq
->queue_id
== cqid
) {
9131 if (unlikely(!cq
)) {
9132 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9133 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9134 "0365 Slow-path CQ identifier "
9135 "(%d) does not exist\n", cqid
);
9139 /* Process all the entries to the CQ */
9142 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9143 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
9144 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9145 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9149 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9150 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
, cqe
);
9151 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9152 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9156 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9157 "0370 Invalid completion queue type (%d)\n",
9162 /* Catch the no cq entry condition, log an error */
9163 if (unlikely(ecount
== 0))
9164 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9165 "0371 No entry from the CQ: identifier "
9166 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
9168 /* In any case, flash and re-arm the RCQ */
9169 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9171 /* wake up worker thread if there are works to be done */
9173 lpfc_worker_wake_up(phba
);
9177 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9178 * @eqe: Pointer to fast-path completion queue entry.
9180 * This routine process a fast-path work queue completion entry from fast-path
9181 * event queue for FCP command response completion.
9184 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
,
9185 struct lpfc_wcqe_complete
*wcqe
)
9187 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9188 struct lpfc_iocbq
*cmdiocbq
;
9189 struct lpfc_iocbq irspiocbq
;
9190 unsigned long iflags
;
9192 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9193 pring
->stats
.iocb_event
++;
9194 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9196 /* Check for response status */
9197 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
9198 /* If resource errors reported from HBA, reduce queue
9199 * depth of the SCSI device.
9201 if ((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
9202 IOSTAT_LOCAL_REJECT
) &&
9203 (wcqe
->parameter
== IOERR_NO_RESOURCES
)) {
9204 phba
->lpfc_rampdown_queue_depth(phba
);
9206 /* Log the error status */
9207 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9208 "0373 FCP complete error: status=x%x, "
9209 "hw_status=x%x, total_data_specified=%d, "
9210 "parameter=x%x, word3=x%x\n",
9211 bf_get(lpfc_wcqe_c_status
, wcqe
),
9212 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
9213 wcqe
->total_data_placed
, wcqe
->parameter
,
9217 /* Look up the FCP command IOCB and create pseudo response IOCB */
9218 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9219 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9220 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9221 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9222 if (unlikely(!cmdiocbq
)) {
9223 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9224 "0374 FCP complete with no corresponding "
9225 "cmdiocb: iotag (%d)\n",
9226 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9229 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
9230 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9231 "0375 FCP cmdiocb not callback function "
9233 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9237 /* Fake the irspiocb and copy necessary response information */
9238 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
9240 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
9241 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9242 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
9243 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9246 /* Pass the cmd_iocb and the rsp state to the upper layer */
9247 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
9251 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9252 * @phba: Pointer to HBA context object.
9253 * @cq: Pointer to completion queue.
9254 * @wcqe: Pointer to work-queue completion queue entry.
9256 * This routine handles an fast-path WQ entry comsumed event by invoking the
9257 * proper WQ release routine to the slow-path WQ.
9260 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9261 struct lpfc_wcqe_release
*wcqe
)
9263 struct lpfc_queue
*childwq
;
9264 bool wqid_matched
= false;
9267 /* Check for fast-path FCP work queue release */
9268 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
9269 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
9270 if (childwq
->queue_id
== fcp_wqid
) {
9271 lpfc_sli4_wq_release(childwq
,
9272 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9273 wqid_matched
= true;
9277 /* Report warning log message if no match found */
9278 if (wqid_matched
!= true)
9279 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9280 "2580 Fast-path wqe consume event carries "
9281 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
9285 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9286 * @cq: Pointer to the completion queue.
9287 * @eqe: Pointer to fast-path completion queue entry.
9289 * This routine process a fast-path work queue completion entry from fast-path
9290 * event queue for FCP command response completion.
9293 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9294 struct lpfc_cqe
*cqe
)
9296 struct lpfc_wcqe_release wcqe
;
9297 bool workposted
= false;
9299 /* Copy the work queue CQE and convert endian order if needed */
9300 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
9302 /* Check and process for different type of WCQE and dispatch */
9303 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
9304 case CQE_CODE_COMPL_WQE
:
9305 /* Process the WQ complete event */
9306 phba
->last_completion_time
= jiffies
;
9307 lpfc_sli4_fp_handle_fcp_wcqe(phba
,
9308 (struct lpfc_wcqe_complete
*)&wcqe
);
9310 case CQE_CODE_RELEASE_WQE
:
9311 /* Process the WQ release event */
9312 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
9313 (struct lpfc_wcqe_release
*)&wcqe
);
9315 case CQE_CODE_XRI_ABORTED
:
9316 /* Process the WQ XRI abort event */
9317 phba
->last_completion_time
= jiffies
;
9318 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9319 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
9322 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9323 "0144 Not a valid WCQE code: x%x\n",
9324 bf_get(lpfc_wcqe_c_code
, &wcqe
));
9331 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9332 * @phba: Pointer to HBA context object.
9333 * @eqe: Pointer to fast-path event queue entry.
9335 * This routine process a event queue entry from the fast-path event queue.
9336 * It will check the MajorCode and MinorCode to determine this is for a
9337 * completion event on a completion queue, if not, an error shall be logged
9338 * and just return. Otherwise, it will get to the corresponding completion
9339 * queue and process all the entries on the completion queue, rearm the
9340 * completion queue, and then return.
9343 lpfc_sli4_fp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
9346 struct lpfc_queue
*cq
;
9347 struct lpfc_cqe
*cqe
;
9348 bool workposted
= false;
9352 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
9353 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9354 "0366 Not a valid fast-path completion "
9355 "event: majorcode=x%x, minorcode=x%x\n",
9356 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9357 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9361 cq
= phba
->sli4_hba
.fcp_cq
[fcp_cqidx
];
9362 if (unlikely(!cq
)) {
9363 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9364 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9365 "0367 Fast-path completion queue "
9366 "does not exist\n");
9370 /* Get the reference to the corresponding CQ */
9371 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9372 if (unlikely(cqid
!= cq
->queue_id
)) {
9373 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9374 "0368 Miss-matched fast-path completion "
9375 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9376 cqid
, cq
->queue_id
);
9380 /* Process all the entries to the CQ */
9381 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9382 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
9383 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9384 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9387 /* Catch the no cq entry condition */
9388 if (unlikely(ecount
== 0))
9389 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9390 "0369 No entry from fast-path completion "
9391 "queue fcpcqid=%d\n", cq
->queue_id
);
9393 /* In any case, flash and re-arm the CQ */
9394 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9396 /* wake up worker thread if there are works to be done */
9398 lpfc_worker_wake_up(phba
);
9402 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
9404 struct lpfc_eqe
*eqe
;
9406 /* walk all the EQ entries and drop on the floor */
9407 while ((eqe
= lpfc_sli4_eq_get(eq
)))
9410 /* Clear and re-arm the EQ */
9411 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
9415 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9416 * @irq: Interrupt number.
9417 * @dev_id: The device context pointer.
9419 * This function is directly called from the PCI layer as an interrupt
9420 * service routine when device with SLI-4 interface spec is enabled with
9421 * MSI-X multi-message interrupt mode and there are slow-path events in
9422 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9423 * interrupt mode, this function is called as part of the device-level
9424 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9425 * undergoing initialization, the interrupt handler will not process the
9426 * interrupt. The link attention and ELS ring attention events are handled
9427 * by the worker thread. The interrupt handler signals the worker thread
9428 * and returns for these events. This function is called without any lock
9429 * held. It gets the hbalock to access and update SLI data structures.
9431 * This function returns IRQ_HANDLED when interrupt is handled else it
9435 lpfc_sli4_sp_intr_handler(int irq
, void *dev_id
)
9437 struct lpfc_hba
*phba
;
9438 struct lpfc_queue
*speq
;
9439 struct lpfc_eqe
*eqe
;
9440 unsigned long iflag
;
9444 * Get the driver's phba structure from the dev_id
9446 phba
= (struct lpfc_hba
*)dev_id
;
9448 if (unlikely(!phba
))
9451 /* Get to the EQ struct associated with this vector */
9452 speq
= phba
->sli4_hba
.sp_eq
;
9454 /* Check device state for handling interrupt */
9455 if (unlikely(lpfc_intr_state_check(phba
))) {
9456 /* Check again for link_state with lock held */
9457 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9458 if (phba
->link_state
< LPFC_LINK_DOWN
)
9459 /* Flush, clear interrupt, and rearm the EQ */
9460 lpfc_sli4_eq_flush(phba
, speq
);
9461 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9466 * Process all the event on FCP slow-path EQ
9468 while ((eqe
= lpfc_sli4_eq_get(speq
))) {
9469 lpfc_sli4_sp_handle_eqe(phba
, eqe
);
9470 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9471 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_NOARM
);
9474 /* Always clear and re-arm the slow-path EQ */
9475 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_REARM
);
9477 /* Catch the no cq entry condition */
9478 if (unlikely(ecount
== 0)) {
9479 if (phba
->intr_type
== MSIX
)
9480 /* MSI-X treated interrupt served as no EQ share INT */
9481 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9482 "0357 MSI-X interrupt with no EQE\n");
9484 /* Non MSI-X treated on interrupt as EQ share INT */
9489 } /* lpfc_sli4_sp_intr_handler */
9492 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
9493 * @irq: Interrupt number.
9494 * @dev_id: The device context pointer.
9496 * This function is directly called from the PCI layer as an interrupt
9497 * service routine when device with SLI-4 interface spec is enabled with
9498 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
9499 * ring event in the HBA. However, when the device is enabled with either
9500 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
9501 * device-level interrupt handler. When the PCI slot is in error recovery
9502 * or the HBA is undergoing initialization, the interrupt handler will not
9503 * process the interrupt. The SCSI FCP fast-path ring event are handled in
9504 * the intrrupt context. This function is called without any lock held.
9505 * It gets the hbalock to access and update SLI data structures. Note that,
9506 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
9507 * equal to that of FCP CQ index.
9509 * This function returns IRQ_HANDLED when interrupt is handled else it
9513 lpfc_sli4_fp_intr_handler(int irq
, void *dev_id
)
9515 struct lpfc_hba
*phba
;
9516 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
9517 struct lpfc_queue
*fpeq
;
9518 struct lpfc_eqe
*eqe
;
9519 unsigned long iflag
;
9523 /* Get the driver's phba structure from the dev_id */
9524 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
9525 phba
= fcp_eq_hdl
->phba
;
9526 fcp_eqidx
= fcp_eq_hdl
->idx
;
9528 if (unlikely(!phba
))
9531 /* Get to the EQ struct associated with this vector */
9532 fpeq
= phba
->sli4_hba
.fp_eq
[fcp_eqidx
];
9534 /* Check device state for handling interrupt */
9535 if (unlikely(lpfc_intr_state_check(phba
))) {
9536 /* Check again for link_state with lock held */
9537 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9538 if (phba
->link_state
< LPFC_LINK_DOWN
)
9539 /* Flush, clear interrupt, and rearm the EQ */
9540 lpfc_sli4_eq_flush(phba
, fpeq
);
9541 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9546 * Process all the event on FCP fast-path EQ
9548 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
9549 lpfc_sli4_fp_handle_eqe(phba
, eqe
, fcp_eqidx
);
9550 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9551 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
9554 /* Always clear and re-arm the fast-path EQ */
9555 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
9557 if (unlikely(ecount
== 0)) {
9558 if (phba
->intr_type
== MSIX
)
9559 /* MSI-X treated interrupt served as no EQ share INT */
9560 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9561 "0358 MSI-X interrupt with no EQE\n");
9563 /* Non MSI-X treated on interrupt as EQ share INT */
9568 } /* lpfc_sli4_fp_intr_handler */
9571 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
9572 * @irq: Interrupt number.
9573 * @dev_id: The device context pointer.
9575 * This function is the device-level interrupt handler to device with SLI-4
9576 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
9577 * interrupt mode is enabled and there is an event in the HBA which requires
9578 * driver attention. This function invokes the slow-path interrupt attention
9579 * handling function and fast-path interrupt attention handling function in
9580 * turn to process the relevant HBA attention events. This function is called
9581 * without any lock held. It gets the hbalock to access and update SLI data
9584 * This function returns IRQ_HANDLED when interrupt is handled, else it
9588 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
9590 struct lpfc_hba
*phba
;
9591 irqreturn_t sp_irq_rc
, fp_irq_rc
;
9592 bool fp_handled
= false;
9595 /* Get the driver's phba structure from the dev_id */
9596 phba
= (struct lpfc_hba
*)dev_id
;
9598 if (unlikely(!phba
))
9602 * Invokes slow-path host attention interrupt handling as appropriate.
9604 sp_irq_rc
= lpfc_sli4_sp_intr_handler(irq
, dev_id
);
9607 * Invoke fast-path host attention interrupt handling as appropriate.
9609 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
9610 fp_irq_rc
= lpfc_sli4_fp_intr_handler(irq
,
9611 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
9612 if (fp_irq_rc
== IRQ_HANDLED
)
9616 return (fp_handled
== true) ? IRQ_HANDLED
: sp_irq_rc
;
9617 } /* lpfc_sli4_intr_handler */
9620 * lpfc_sli4_queue_free - free a queue structure and associated memory
9621 * @queue: The queue structure to free.
9623 * This function frees a queue structure and the DMAable memeory used for
9624 * the host resident queue. This function must be called after destroying the
9628 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
9630 struct lpfc_dmabuf
*dmabuf
;
9635 while (!list_empty(&queue
->page_list
)) {
9636 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
9638 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
9639 dmabuf
->virt
, dmabuf
->phys
);
9647 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
9648 * @phba: The HBA that this queue is being created on.
9649 * @entry_size: The size of each queue entry for this queue.
9650 * @entry count: The number of entries that this queue will handle.
9652 * This function allocates a queue structure and the DMAable memory used for
9653 * the host resident queue. This function must be called before creating the
9657 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
9658 uint32_t entry_count
)
9660 struct lpfc_queue
*queue
;
9661 struct lpfc_dmabuf
*dmabuf
;
9662 int x
, total_qe_count
;
9664 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9666 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9667 hw_page_size
= SLI4_PAGE_SIZE
;
9669 queue
= kzalloc(sizeof(struct lpfc_queue
) +
9670 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
9673 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
9674 hw_page_size
))/hw_page_size
;
9675 INIT_LIST_HEAD(&queue
->list
);
9676 INIT_LIST_HEAD(&queue
->page_list
);
9677 INIT_LIST_HEAD(&queue
->child_list
);
9678 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
9679 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
9682 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
9683 hw_page_size
, &dmabuf
->phys
,
9685 if (!dmabuf
->virt
) {
9689 memset(dmabuf
->virt
, 0, hw_page_size
);
9690 dmabuf
->buffer_tag
= x
;
9691 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
9692 /* initialize queue's entry array */
9693 dma_pointer
= dmabuf
->virt
;
9694 for (; total_qe_count
< entry_count
&&
9695 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
9696 total_qe_count
++, dma_pointer
+= entry_size
) {
9697 queue
->qe
[total_qe_count
].address
= dma_pointer
;
9700 queue
->entry_size
= entry_size
;
9701 queue
->entry_count
= entry_count
;
9706 lpfc_sli4_queue_free(queue
);
9711 * lpfc_eq_create - Create an Event Queue on the HBA
9712 * @phba: HBA structure that indicates port to create a queue on.
9713 * @eq: The queue structure to use to create the event queue.
9714 * @imax: The maximum interrupt per second limit.
9716 * This function creates an event queue, as detailed in @eq, on a port,
9717 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
9719 * The @phba struct is used to send mailbox command to HBA. The @eq struct
9720 * is used to get the entry count and entry size that are necessary to
9721 * determine the number of pages to allocate and use for this queue. This
9722 * function will send the EQ_CREATE mailbox command to the HBA to setup the
9723 * event queue. This function is asynchronous and will wait for the mailbox
9724 * command to finish before continuing.
9726 * On success this function will return a zero. If unable to allocate enough
9727 * memory this function will return ENOMEM. If the queue create mailbox command
9728 * fails this function will return ENXIO.
9731 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint16_t imax
)
9733 struct lpfc_mbx_eq_create
*eq_create
;
9735 int rc
, length
, status
= 0;
9736 struct lpfc_dmabuf
*dmabuf
;
9737 uint32_t shdr_status
, shdr_add_status
;
9738 union lpfc_sli4_cfg_shdr
*shdr
;
9740 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9742 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9743 hw_page_size
= SLI4_PAGE_SIZE
;
9745 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9748 length
= (sizeof(struct lpfc_mbx_eq_create
) -
9749 sizeof(struct lpfc_sli4_cfg_mhdr
));
9750 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9751 LPFC_MBOX_OPCODE_EQ_CREATE
,
9752 length
, LPFC_SLI4_MBX_EMBED
);
9753 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
9754 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
9756 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
9758 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
9759 /* Calculate delay multiper from maximum interrupt per second */
9760 dmult
= LPFC_DMULT_CONST
/imax
- 1;
9761 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
9763 switch (eq
->entry_count
) {
9765 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9766 "0360 Unsupported EQ count. (%d)\n",
9768 if (eq
->entry_count
< 256)
9770 /* otherwise default to smallest count (drop through) */
9772 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9776 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9780 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9784 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9788 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
9792 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
9793 memset(dmabuf
->virt
, 0, hw_page_size
);
9794 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9795 putPaddrLow(dmabuf
->phys
);
9796 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9797 putPaddrHigh(dmabuf
->phys
);
9799 mbox
->vport
= phba
->pport
;
9800 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
9801 mbox
->context1
= NULL
;
9802 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9803 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
9804 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9805 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9806 if (shdr_status
|| shdr_add_status
|| rc
) {
9807 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9808 "2500 EQ_CREATE mailbox failed with "
9809 "status x%x add_status x%x, mbx status x%x\n",
9810 shdr_status
, shdr_add_status
, rc
);
9814 eq
->subtype
= LPFC_NONE
;
9815 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
9816 if (eq
->queue_id
== 0xFFFF)
9821 mempool_free(mbox
, phba
->mbox_mem_pool
);
9826 * lpfc_cq_create - Create a Completion Queue on the HBA
9827 * @phba: HBA structure that indicates port to create a queue on.
9828 * @cq: The queue structure to use to create the completion queue.
9829 * @eq: The event queue to bind this completion queue to.
9831 * This function creates a completion queue, as detailed in @wq, on a port,
9832 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
9834 * The @phba struct is used to send mailbox command to HBA. The @cq struct
9835 * is used to get the entry count and entry size that are necessary to
9836 * determine the number of pages to allocate and use for this queue. The @eq
9837 * is used to indicate which event queue to bind this completion queue to. This
9838 * function will send the CQ_CREATE mailbox command to the HBA to setup the
9839 * completion queue. This function is asynchronous and will wait for the mailbox
9840 * command to finish before continuing.
9842 * On success this function will return a zero. If unable to allocate enough
9843 * memory this function will return ENOMEM. If the queue create mailbox command
9844 * fails this function will return ENXIO.
9847 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9848 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
9850 struct lpfc_mbx_cq_create
*cq_create
;
9851 struct lpfc_dmabuf
*dmabuf
;
9853 int rc
, length
, status
= 0;
9854 uint32_t shdr_status
, shdr_add_status
;
9855 union lpfc_sli4_cfg_shdr
*shdr
;
9856 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
9858 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
9859 hw_page_size
= SLI4_PAGE_SIZE
;
9862 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
9865 length
= (sizeof(struct lpfc_mbx_cq_create
) -
9866 sizeof(struct lpfc_sli4_cfg_mhdr
));
9867 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9868 LPFC_MBOX_OPCODE_CQ_CREATE
,
9869 length
, LPFC_SLI4_MBX_EMBED
);
9870 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
9871 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
9873 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
9874 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
9875 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
, eq
->queue_id
);
9876 switch (cq
->entry_count
) {
9878 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9879 "0361 Unsupported CQ count. (%d)\n",
9881 if (cq
->entry_count
< 256)
9883 /* otherwise default to smallest count (drop through) */
9885 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9889 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9893 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
9897 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
9898 memset(dmabuf
->virt
, 0, hw_page_size
);
9899 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9900 putPaddrLow(dmabuf
->phys
);
9901 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9902 putPaddrHigh(dmabuf
->phys
);
9904 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
9906 /* The IOCTL status is embedded in the mailbox subheader. */
9907 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
9908 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
9909 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
9910 if (shdr_status
|| shdr_add_status
|| rc
) {
9911 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9912 "2501 CQ_CREATE mailbox failed with "
9913 "status x%x add_status x%x, mbx status x%x\n",
9914 shdr_status
, shdr_add_status
, rc
);
9918 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9919 if (cq
->queue_id
== 0xFFFF) {
9923 /* link the cq onto the parent eq child list */
9924 list_add_tail(&cq
->list
, &eq
->child_list
);
9925 /* Set up completion queue's type and subtype */
9927 cq
->subtype
= subtype
;
9928 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
9933 mempool_free(mbox
, phba
->mbox_mem_pool
);
9938 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
9939 * @phba: HBA structure that indicates port to create a queue on.
9940 * @mq: The queue structure to use to create the mailbox queue.
9941 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
9942 * @cq: The completion queue to associate with this cq.
9944 * This function provides failback (fb) functionality when the
9945 * mq_create_ext fails on older FW generations. It's purpose is identical
9946 * to mq_create_ext otherwise.
9948 * This routine cannot fail as all attributes were previously accessed and
9949 * initialized in mq_create_ext.
9952 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
9953 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
9955 struct lpfc_mbx_mq_create
*mq_create
;
9956 struct lpfc_dmabuf
*dmabuf
;
9959 length
= (sizeof(struct lpfc_mbx_mq_create
) -
9960 sizeof(struct lpfc_sli4_cfg_mhdr
));
9961 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
9962 LPFC_MBOX_OPCODE_MQ_CREATE
,
9963 length
, LPFC_SLI4_MBX_EMBED
);
9964 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
9965 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
9967 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
9969 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
9970 switch (mq
->entry_count
) {
9972 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9976 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9980 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9984 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
9988 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
9989 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
9990 putPaddrLow(dmabuf
->phys
);
9991 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
9992 putPaddrHigh(dmabuf
->phys
);
9997 * lpfc_mq_create - Create a mailbox Queue on the HBA
9998 * @phba: HBA structure that indicates port to create a queue on.
9999 * @mq: The queue structure to use to create the mailbox queue.
10000 * @cq: The completion queue to associate with this cq.
10001 * @subtype: The queue's subtype.
10003 * This function creates a mailbox queue, as detailed in @mq, on a port,
10004 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10006 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10007 * is used to get the entry count and entry size that are necessary to
10008 * determine the number of pages to allocate and use for this queue. This
10009 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10010 * mailbox queue. This function is asynchronous and will wait for the mailbox
10011 * command to finish before continuing.
10013 * On success this function will return a zero. If unable to allocate enough
10014 * memory this function will return ENOMEM. If the queue create mailbox command
10015 * fails this function will return ENXIO.
10018 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10019 struct lpfc_queue
*cq
, uint32_t subtype
)
10021 struct lpfc_mbx_mq_create
*mq_create
;
10022 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
10023 struct lpfc_dmabuf
*dmabuf
;
10024 LPFC_MBOXQ_t
*mbox
;
10025 int rc
, length
, status
= 0;
10026 uint32_t shdr_status
, shdr_add_status
;
10027 union lpfc_sli4_cfg_shdr
*shdr
;
10028 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10030 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10031 hw_page_size
= SLI4_PAGE_SIZE
;
10033 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10036 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
10037 sizeof(struct lpfc_sli4_cfg_mhdr
));
10038 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10039 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
10040 length
, LPFC_SLI4_MBX_EMBED
);
10042 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
10043 bf_set(lpfc_mbx_mq_create_ext_num_pages
, &mq_create_ext
->u
.request
,
10045 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
, &mq_create_ext
->u
.request
,
10047 bf_set(lpfc_mbx_mq_create_ext_async_evt_fcfste
,
10048 &mq_create_ext
->u
.request
, 1);
10049 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
10050 &mq_create_ext
->u
.request
, 1);
10051 bf_set(lpfc_mq_context_cq_id
, &mq_create_ext
->u
.request
.context
,
10053 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
10054 switch (mq
->entry_count
) {
10056 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10057 "0362 Unsupported MQ count. (%d)\n",
10059 if (mq
->entry_count
< 16)
10061 /* otherwise default to smallest count (drop through) */
10063 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10067 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10071 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10075 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10079 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10080 memset(dmabuf
->virt
, 0, hw_page_size
);
10081 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10082 putPaddrLow(dmabuf
->phys
);
10083 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10084 putPaddrHigh(dmabuf
->phys
);
10086 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10087 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
10088 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10089 &mq_create_ext
->u
.response
);
10090 if (rc
!= MBX_SUCCESS
) {
10091 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
10092 "2795 MQ_CREATE_EXT failed with "
10093 "status x%x. Failback to MQ_CREATE.\n",
10095 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
10096 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10097 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10098 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
10099 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10100 &mq_create
->u
.response
);
10103 /* The IOCTL status is embedded in the mailbox subheader. */
10104 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10105 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10106 if (shdr_status
|| shdr_add_status
|| rc
) {
10107 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10108 "2502 MQ_CREATE mailbox failed with "
10109 "status x%x add_status x%x, mbx status x%x\n",
10110 shdr_status
, shdr_add_status
, rc
);
10114 if (mq
->queue_id
== 0xFFFF) {
10118 mq
->type
= LPFC_MQ
;
10119 mq
->subtype
= subtype
;
10120 mq
->host_index
= 0;
10123 /* link the mq onto the parent cq child list */
10124 list_add_tail(&mq
->list
, &cq
->child_list
);
10126 mempool_free(mbox
, phba
->mbox_mem_pool
);
10131 * lpfc_wq_create - Create a Work Queue on the HBA
10132 * @phba: HBA structure that indicates port to create a queue on.
10133 * @wq: The queue structure to use to create the work queue.
10134 * @cq: The completion queue to bind this work queue to.
10135 * @subtype: The subtype of the work queue indicating its functionality.
10137 * This function creates a work queue, as detailed in @wq, on a port, described
10138 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10140 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10141 * is used to get the entry count and entry size that are necessary to
10142 * determine the number of pages to allocate and use for this queue. The @cq
10143 * is used to indicate which completion queue to bind this work queue to. This
10144 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10145 * work queue. This function is asynchronous and will wait for the mailbox
10146 * command to finish before continuing.
10148 * On success this function will return a zero. If unable to allocate enough
10149 * memory this function will return ENOMEM. If the queue create mailbox command
10150 * fails this function will return ENXIO.
10153 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
10154 struct lpfc_queue
*cq
, uint32_t subtype
)
10156 struct lpfc_mbx_wq_create
*wq_create
;
10157 struct lpfc_dmabuf
*dmabuf
;
10158 LPFC_MBOXQ_t
*mbox
;
10159 int rc
, length
, status
= 0;
10160 uint32_t shdr_status
, shdr_add_status
;
10161 union lpfc_sli4_cfg_shdr
*shdr
;
10162 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10164 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10165 hw_page_size
= SLI4_PAGE_SIZE
;
10167 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10170 length
= (sizeof(struct lpfc_mbx_wq_create
) -
10171 sizeof(struct lpfc_sli4_cfg_mhdr
));
10172 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10173 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
10174 length
, LPFC_SLI4_MBX_EMBED
);
10175 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
10176 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
10178 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
10180 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
10181 memset(dmabuf
->virt
, 0, hw_page_size
);
10182 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10183 putPaddrLow(dmabuf
->phys
);
10184 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10185 putPaddrHigh(dmabuf
->phys
);
10187 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10188 /* The IOCTL status is embedded in the mailbox subheader. */
10189 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
10190 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10191 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10192 if (shdr_status
|| shdr_add_status
|| rc
) {
10193 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10194 "2503 WQ_CREATE mailbox failed with "
10195 "status x%x add_status x%x, mbx status x%x\n",
10196 shdr_status
, shdr_add_status
, rc
);
10200 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
10201 if (wq
->queue_id
== 0xFFFF) {
10205 wq
->type
= LPFC_WQ
;
10206 wq
->subtype
= subtype
;
10207 wq
->host_index
= 0;
10210 /* link the wq onto the parent cq child list */
10211 list_add_tail(&wq
->list
, &cq
->child_list
);
10213 mempool_free(mbox
, phba
->mbox_mem_pool
);
10218 * lpfc_rq_create - Create a Receive Queue on the HBA
10219 * @phba: HBA structure that indicates port to create a queue on.
10220 * @hrq: The queue structure to use to create the header receive queue.
10221 * @drq: The queue structure to use to create the data receive queue.
10222 * @cq: The completion queue to bind this work queue to.
10224 * This function creates a receive buffer queue pair , as detailed in @hrq and
10225 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10228 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10229 * struct is used to get the entry count that is necessary to determine the
10230 * number of pages to use for this queue. The @cq is used to indicate which
10231 * completion queue to bind received buffers that are posted to these queues to.
10232 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10233 * receive queue pair. This function is asynchronous and will wait for the
10234 * mailbox command to finish before continuing.
10236 * On success this function will return a zero. If unable to allocate enough
10237 * memory this function will return ENOMEM. If the queue create mailbox command
10238 * fails this function will return ENXIO.
10241 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10242 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
10244 struct lpfc_mbx_rq_create
*rq_create
;
10245 struct lpfc_dmabuf
*dmabuf
;
10246 LPFC_MBOXQ_t
*mbox
;
10247 int rc
, length
, status
= 0;
10248 uint32_t shdr_status
, shdr_add_status
;
10249 union lpfc_sli4_cfg_shdr
*shdr
;
10250 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10252 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10253 hw_page_size
= SLI4_PAGE_SIZE
;
10255 if (hrq
->entry_count
!= drq
->entry_count
)
10257 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10260 length
= (sizeof(struct lpfc_mbx_rq_create
) -
10261 sizeof(struct lpfc_sli4_cfg_mhdr
));
10262 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10263 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10264 length
, LPFC_SLI4_MBX_EMBED
);
10265 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
10266 switch (hrq
->entry_count
) {
10268 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10269 "2535 Unsupported RQ count. (%d)\n",
10271 if (hrq
->entry_count
< 512)
10273 /* otherwise default to smallest count (drop through) */
10275 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10276 LPFC_RQ_RING_SIZE_512
);
10279 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10280 LPFC_RQ_RING_SIZE_1024
);
10283 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10284 LPFC_RQ_RING_SIZE_2048
);
10287 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10288 LPFC_RQ_RING_SIZE_4096
);
10291 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10293 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10295 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10296 LPFC_HDR_BUF_SIZE
);
10297 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
10298 memset(dmabuf
->virt
, 0, hw_page_size
);
10299 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10300 putPaddrLow(dmabuf
->phys
);
10301 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10302 putPaddrHigh(dmabuf
->phys
);
10304 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10305 /* The IOCTL status is embedded in the mailbox subheader. */
10306 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10307 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10308 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10309 if (shdr_status
|| shdr_add_status
|| rc
) {
10310 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10311 "2504 RQ_CREATE mailbox failed with "
10312 "status x%x add_status x%x, mbx status x%x\n",
10313 shdr_status
, shdr_add_status
, rc
);
10317 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10318 if (hrq
->queue_id
== 0xFFFF) {
10322 hrq
->type
= LPFC_HRQ
;
10323 hrq
->subtype
= subtype
;
10324 hrq
->host_index
= 0;
10325 hrq
->hba_index
= 0;
10327 /* now create the data queue */
10328 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10329 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10330 length
, LPFC_SLI4_MBX_EMBED
);
10331 switch (drq
->entry_count
) {
10333 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10334 "2536 Unsupported RQ count. (%d)\n",
10336 if (drq
->entry_count
< 512)
10338 /* otherwise default to smallest count (drop through) */
10340 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10341 LPFC_RQ_RING_SIZE_512
);
10344 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10345 LPFC_RQ_RING_SIZE_1024
);
10348 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10349 LPFC_RQ_RING_SIZE_2048
);
10352 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10353 LPFC_RQ_RING_SIZE_4096
);
10356 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10358 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10360 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10361 LPFC_DATA_BUF_SIZE
);
10362 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
10363 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10364 putPaddrLow(dmabuf
->phys
);
10365 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10366 putPaddrHigh(dmabuf
->phys
);
10368 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10369 /* The IOCTL status is embedded in the mailbox subheader. */
10370 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10371 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10372 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10373 if (shdr_status
|| shdr_add_status
|| rc
) {
10377 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10378 if (drq
->queue_id
== 0xFFFF) {
10382 drq
->type
= LPFC_DRQ
;
10383 drq
->subtype
= subtype
;
10384 drq
->host_index
= 0;
10385 drq
->hba_index
= 0;
10387 /* link the header and data RQs onto the parent cq child list */
10388 list_add_tail(&hrq
->list
, &cq
->child_list
);
10389 list_add_tail(&drq
->list
, &cq
->child_list
);
10392 mempool_free(mbox
, phba
->mbox_mem_pool
);
10397 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10398 * @eq: The queue structure associated with the queue to destroy.
10400 * This function destroys a queue, as detailed in @eq by sending an mailbox
10401 * command, specific to the type of queue, to the HBA.
10403 * The @eq struct is used to get the queue ID of the queue to destroy.
10405 * On success this function will return a zero. If the queue destroy mailbox
10406 * command fails this function will return ENXIO.
10409 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
10411 LPFC_MBOXQ_t
*mbox
;
10412 int rc
, length
, status
= 0;
10413 uint32_t shdr_status
, shdr_add_status
;
10414 union lpfc_sli4_cfg_shdr
*shdr
;
10418 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10421 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
10422 sizeof(struct lpfc_sli4_cfg_mhdr
));
10423 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10424 LPFC_MBOX_OPCODE_EQ_DESTROY
,
10425 length
, LPFC_SLI4_MBX_EMBED
);
10426 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
10428 mbox
->vport
= eq
->phba
->pport
;
10429 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10431 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
10432 /* The IOCTL status is embedded in the mailbox subheader. */
10433 shdr
= (union lpfc_sli4_cfg_shdr
*)
10434 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
10435 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10436 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10437 if (shdr_status
|| shdr_add_status
|| rc
) {
10438 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10439 "2505 EQ_DESTROY mailbox failed with "
10440 "status x%x add_status x%x, mbx status x%x\n",
10441 shdr_status
, shdr_add_status
, rc
);
10445 /* Remove eq from any list */
10446 list_del_init(&eq
->list
);
10447 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
10452 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
10453 * @cq: The queue structure associated with the queue to destroy.
10455 * This function destroys a queue, as detailed in @cq by sending an mailbox
10456 * command, specific to the type of queue, to the HBA.
10458 * The @cq struct is used to get the queue ID of the queue to destroy.
10460 * On success this function will return a zero. If the queue destroy mailbox
10461 * command fails this function will return ENXIO.
10464 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
10466 LPFC_MBOXQ_t
*mbox
;
10467 int rc
, length
, status
= 0;
10468 uint32_t shdr_status
, shdr_add_status
;
10469 union lpfc_sli4_cfg_shdr
*shdr
;
10473 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10476 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
10477 sizeof(struct lpfc_sli4_cfg_mhdr
));
10478 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10479 LPFC_MBOX_OPCODE_CQ_DESTROY
,
10480 length
, LPFC_SLI4_MBX_EMBED
);
10481 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
10483 mbox
->vport
= cq
->phba
->pport
;
10484 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10485 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
10486 /* The IOCTL status is embedded in the mailbox subheader. */
10487 shdr
= (union lpfc_sli4_cfg_shdr
*)
10488 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
10489 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10490 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10491 if (shdr_status
|| shdr_add_status
|| rc
) {
10492 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10493 "2506 CQ_DESTROY mailbox failed with "
10494 "status x%x add_status x%x, mbx status x%x\n",
10495 shdr_status
, shdr_add_status
, rc
);
10498 /* Remove cq from any list */
10499 list_del_init(&cq
->list
);
10500 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
10505 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
10506 * @qm: The queue structure associated with the queue to destroy.
10508 * This function destroys a queue, as detailed in @mq by sending an mailbox
10509 * command, specific to the type of queue, to the HBA.
10511 * The @mq struct is used to get the queue ID of the queue to destroy.
10513 * On success this function will return a zero. If the queue destroy mailbox
10514 * command fails this function will return ENXIO.
10517 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
10519 LPFC_MBOXQ_t
*mbox
;
10520 int rc
, length
, status
= 0;
10521 uint32_t shdr_status
, shdr_add_status
;
10522 union lpfc_sli4_cfg_shdr
*shdr
;
10526 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10529 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
10530 sizeof(struct lpfc_sli4_cfg_mhdr
));
10531 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10532 LPFC_MBOX_OPCODE_MQ_DESTROY
,
10533 length
, LPFC_SLI4_MBX_EMBED
);
10534 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
10536 mbox
->vport
= mq
->phba
->pport
;
10537 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10538 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
10539 /* The IOCTL status is embedded in the mailbox subheader. */
10540 shdr
= (union lpfc_sli4_cfg_shdr
*)
10541 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
10542 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10543 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10544 if (shdr_status
|| shdr_add_status
|| rc
) {
10545 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10546 "2507 MQ_DESTROY mailbox failed with "
10547 "status x%x add_status x%x, mbx status x%x\n",
10548 shdr_status
, shdr_add_status
, rc
);
10551 /* Remove mq from any list */
10552 list_del_init(&mq
->list
);
10553 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
10558 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
10559 * @wq: The queue structure associated with the queue to destroy.
10561 * This function destroys a queue, as detailed in @wq by sending an mailbox
10562 * command, specific to the type of queue, to the HBA.
10564 * The @wq struct is used to get the queue ID of the queue to destroy.
10566 * On success this function will return a zero. If the queue destroy mailbox
10567 * command fails this function will return ENXIO.
10570 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
10572 LPFC_MBOXQ_t
*mbox
;
10573 int rc
, length
, status
= 0;
10574 uint32_t shdr_status
, shdr_add_status
;
10575 union lpfc_sli4_cfg_shdr
*shdr
;
10579 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10582 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
10583 sizeof(struct lpfc_sli4_cfg_mhdr
));
10584 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10585 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
10586 length
, LPFC_SLI4_MBX_EMBED
);
10587 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
10589 mbox
->vport
= wq
->phba
->pport
;
10590 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10591 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
10592 shdr
= (union lpfc_sli4_cfg_shdr
*)
10593 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
10594 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10595 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10596 if (shdr_status
|| shdr_add_status
|| rc
) {
10597 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10598 "2508 WQ_DESTROY mailbox failed with "
10599 "status x%x add_status x%x, mbx status x%x\n",
10600 shdr_status
, shdr_add_status
, rc
);
10603 /* Remove wq from any list */
10604 list_del_init(&wq
->list
);
10605 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
10610 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
10611 * @rq: The queue structure associated with the queue to destroy.
10613 * This function destroys a queue, as detailed in @rq by sending an mailbox
10614 * command, specific to the type of queue, to the HBA.
10616 * The @rq struct is used to get the queue ID of the queue to destroy.
10618 * On success this function will return a zero. If the queue destroy mailbox
10619 * command fails this function will return ENXIO.
10622 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10623 struct lpfc_queue
*drq
)
10625 LPFC_MBOXQ_t
*mbox
;
10626 int rc
, length
, status
= 0;
10627 uint32_t shdr_status
, shdr_add_status
;
10628 union lpfc_sli4_cfg_shdr
*shdr
;
10632 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10635 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
10636 sizeof(struct mbox_header
));
10637 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10638 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
10639 length
, LPFC_SLI4_MBX_EMBED
);
10640 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10642 mbox
->vport
= hrq
->phba
->pport
;
10643 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10644 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
10645 /* The IOCTL status is embedded in the mailbox subheader. */
10646 shdr
= (union lpfc_sli4_cfg_shdr
*)
10647 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10648 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10649 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10650 if (shdr_status
|| shdr_add_status
|| rc
) {
10651 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10652 "2509 RQ_DESTROY mailbox failed with "
10653 "status x%x add_status x%x, mbx status x%x\n",
10654 shdr_status
, shdr_add_status
, rc
);
10655 if (rc
!= MBX_TIMEOUT
)
10656 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10659 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
10661 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
10662 shdr
= (union lpfc_sli4_cfg_shdr
*)
10663 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
10664 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10665 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10666 if (shdr_status
|| shdr_add_status
|| rc
) {
10667 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10668 "2510 RQ_DESTROY mailbox failed with "
10669 "status x%x add_status x%x, mbx status x%x\n",
10670 shdr_status
, shdr_add_status
, rc
);
10673 list_del_init(&hrq
->list
);
10674 list_del_init(&drq
->list
);
10675 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
10680 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
10681 * @phba: The virtual port for which this call being executed.
10682 * @pdma_phys_addr0: Physical address of the 1st SGL page.
10683 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
10684 * @xritag: the xritag that ties this io to the SGL pages.
10686 * This routine will post the sgl pages for the IO that has the xritag
10687 * that is in the iocbq structure. The xritag is assigned during iocbq
10688 * creation and persists for as long as the driver is loaded.
10689 * if the caller has fewer than 256 scatter gather segments to map then
10690 * pdma_phys_addr1 should be 0.
10691 * If the caller needs to map more than 256 scatter gather segment then
10692 * pdma_phys_addr1 should be a valid physical address.
10693 * physical address for SGLs must be 64 byte aligned.
10694 * If you are going to map 2 SGL's then the first one must have 256 entries
10695 * the second sgl can have between 1 and 256 entries.
10699 * -ENXIO, -ENOMEM - Failure
10702 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
10703 dma_addr_t pdma_phys_addr0
,
10704 dma_addr_t pdma_phys_addr1
,
10707 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
10708 LPFC_MBOXQ_t
*mbox
;
10710 uint32_t shdr_status
, shdr_add_status
;
10711 union lpfc_sli4_cfg_shdr
*shdr
;
10713 if (xritag
== NO_XRI
) {
10714 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10715 "0364 Invalid param:\n");
10719 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10723 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10724 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
10725 sizeof(struct lpfc_mbx_post_sgl_pages
) -
10726 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
10728 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
10729 &mbox
->u
.mqe
.un
.post_sgl_pages
;
10730 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
10731 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
10733 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
10734 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
10735 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
10736 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
10738 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
10739 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
10740 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
10741 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
10742 if (!phba
->sli4_hba
.intr_enable
)
10743 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10745 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
10746 /* The IOCTL status is embedded in the mailbox subheader. */
10747 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
10748 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10749 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10750 if (rc
!= MBX_TIMEOUT
)
10751 mempool_free(mbox
, phba
->mbox_mem_pool
);
10752 if (shdr_status
|| shdr_add_status
|| rc
) {
10753 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10754 "2511 POST_SGL mailbox failed with "
10755 "status x%x add_status x%x, mbx status x%x\n",
10756 shdr_status
, shdr_add_status
, rc
);
10762 * lpfc_sli4_remove_all_sgl_pages - Post scatter gather list for an XRI to HBA
10763 * @phba: The virtual port for which this call being executed.
10765 * This routine will remove all of the sgl pages registered with the hba.
10769 * -ENXIO, -ENOMEM - Failure
10772 lpfc_sli4_remove_all_sgl_pages(struct lpfc_hba
*phba
)
10774 LPFC_MBOXQ_t
*mbox
;
10776 uint32_t shdr_status
, shdr_add_status
;
10777 union lpfc_sli4_cfg_shdr
*shdr
;
10779 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10783 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10784 LPFC_MBOX_OPCODE_FCOE_REMOVE_SGL_PAGES
, 0,
10785 LPFC_SLI4_MBX_EMBED
);
10786 if (!phba
->sli4_hba
.intr_enable
)
10787 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10789 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
10790 /* The IOCTL status is embedded in the mailbox subheader. */
10791 shdr
= (union lpfc_sli4_cfg_shdr
*)
10792 &mbox
->u
.mqe
.un
.sli4_config
.header
.cfg_shdr
;
10793 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10794 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10795 if (rc
!= MBX_TIMEOUT
)
10796 mempool_free(mbox
, phba
->mbox_mem_pool
);
10797 if (shdr_status
|| shdr_add_status
|| rc
) {
10798 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10799 "2512 REMOVE_ALL_SGL_PAGES mailbox failed with "
10800 "status x%x add_status x%x, mbx status x%x\n",
10801 shdr_status
, shdr_add_status
, rc
);
10808 * lpfc_sli4_next_xritag - Get an xritag for the io
10809 * @phba: Pointer to HBA context object.
10811 * This function gets an xritag for the iocb. If there is no unused xritag
10812 * it will return 0xffff.
10813 * The function returns the allocated xritag if successful, else returns zero.
10814 * Zero is not a valid xritag.
10815 * The caller is not required to hold any lock.
10818 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
10822 spin_lock_irq(&phba
->hbalock
);
10823 xritag
= phba
->sli4_hba
.next_xri
;
10824 if ((xritag
!= (uint16_t) -1) && xritag
<
10825 (phba
->sli4_hba
.max_cfg_param
.max_xri
10826 + phba
->sli4_hba
.max_cfg_param
.xri_base
)) {
10827 phba
->sli4_hba
.next_xri
++;
10828 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
10829 spin_unlock_irq(&phba
->hbalock
);
10832 spin_unlock_irq(&phba
->hbalock
);
10833 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10834 "2004 Failed to allocate XRI.last XRITAG is %d"
10835 " Max XRI is %d, Used XRI is %d\n",
10836 phba
->sli4_hba
.next_xri
,
10837 phba
->sli4_hba
.max_cfg_param
.max_xri
,
10838 phba
->sli4_hba
.max_cfg_param
.xri_used
);
10843 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
10844 * @phba: pointer to lpfc hba data structure.
10846 * This routine is invoked to post a block of driver's sgl pages to the
10847 * HBA using non-embedded mailbox command. No Lock is held. This routine
10848 * is only called when the driver is loading and after all IO has been
10852 lpfc_sli4_post_sgl_list(struct lpfc_hba
*phba
)
10854 struct lpfc_sglq
*sglq_entry
;
10855 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10856 struct sgl_page_pairs
*sgl_pg_pairs
;
10858 LPFC_MBOXQ_t
*mbox
;
10859 uint32_t reqlen
, alloclen
, pg_pairs
;
10861 uint16_t xritag_start
= 0;
10862 int els_xri_cnt
, rc
= 0;
10863 uint32_t shdr_status
, shdr_add_status
;
10864 union lpfc_sli4_cfg_shdr
*shdr
;
10866 /* The number of sgls to be posted */
10867 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
10869 reqlen
= els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
10870 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10871 if (reqlen
> SLI4_PAGE_SIZE
) {
10872 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10873 "2559 Block sgl registration required DMA "
10874 "size (%d) great than a page\n", reqlen
);
10877 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10879 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10880 "2560 Failed to allocate mbox cmd memory\n");
10884 /* Allocate DMA memory and set up the non-embedded mailbox command */
10885 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10886 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10887 LPFC_SLI4_MBX_NEMBED
);
10889 if (alloclen
< reqlen
) {
10890 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10891 "0285 Allocated DMA memory size (%d) is "
10892 "less than the requested DMA memory "
10893 "size (%d)\n", alloclen
, reqlen
);
10894 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10897 /* Get the first SGE entry from the non-embedded DMA memory */
10898 viraddr
= mbox
->sge_array
->addr
[0];
10900 /* Set up the SGL pages in the non-embedded DMA pages */
10901 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
10902 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
10904 for (pg_pairs
= 0; pg_pairs
< els_xri_cnt
; pg_pairs
++) {
10905 sglq_entry
= phba
->sli4_hba
.lpfc_els_sgl_array
[pg_pairs
];
10906 /* Set up the sge entry */
10907 sgl_pg_pairs
->sgl_pg0_addr_lo
=
10908 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
10909 sgl_pg_pairs
->sgl_pg0_addr_hi
=
10910 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
10911 sgl_pg_pairs
->sgl_pg1_addr_lo
=
10912 cpu_to_le32(putPaddrLow(0));
10913 sgl_pg_pairs
->sgl_pg1_addr_hi
=
10914 cpu_to_le32(putPaddrHigh(0));
10915 /* Keep the first xritag on the list */
10917 xritag_start
= sglq_entry
->sli4_xritag
;
10920 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
10921 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, els_xri_cnt
);
10922 /* Perform endian conversion if necessary */
10923 sgl
->word0
= cpu_to_le32(sgl
->word0
);
10925 if (!phba
->sli4_hba
.intr_enable
)
10926 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10928 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
10929 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
10931 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
10932 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10933 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10934 if (rc
!= MBX_TIMEOUT
)
10935 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
10936 if (shdr_status
|| shdr_add_status
|| rc
) {
10937 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10938 "2513 POST_SGL_BLOCK mailbox command failed "
10939 "status x%x add_status x%x mbx status x%x\n",
10940 shdr_status
, shdr_add_status
, rc
);
10947 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
10948 * @phba: pointer to lpfc hba data structure.
10949 * @sblist: pointer to scsi buffer list.
10950 * @count: number of scsi buffers on the list.
10952 * This routine is invoked to post a block of @count scsi sgl pages from a
10953 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
10958 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
, struct list_head
*sblist
,
10961 struct lpfc_scsi_buf
*psb
;
10962 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
10963 struct sgl_page_pairs
*sgl_pg_pairs
;
10965 LPFC_MBOXQ_t
*mbox
;
10966 uint32_t reqlen
, alloclen
, pg_pairs
;
10968 uint16_t xritag_start
= 0;
10970 uint32_t shdr_status
, shdr_add_status
;
10971 dma_addr_t pdma_phys_bpl1
;
10972 union lpfc_sli4_cfg_shdr
*shdr
;
10974 /* Calculate the requested length of the dma memory */
10975 reqlen
= cnt
* sizeof(struct sgl_page_pairs
) +
10976 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
10977 if (reqlen
> SLI4_PAGE_SIZE
) {
10978 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
10979 "0217 Block sgl registration required DMA "
10980 "size (%d) great than a page\n", reqlen
);
10983 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10985 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10986 "0283 Failed to allocate mbox cmd memory\n");
10990 /* Allocate DMA memory and set up the non-embedded mailbox command */
10991 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10992 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
10993 LPFC_SLI4_MBX_NEMBED
);
10995 if (alloclen
< reqlen
) {
10996 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10997 "2561 Allocated DMA memory size (%d) is "
10998 "less than the requested DMA memory "
10999 "size (%d)\n", alloclen
, reqlen
);
11000 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11003 /* Get the first SGE entry from the non-embedded DMA memory */
11004 viraddr
= mbox
->sge_array
->addr
[0];
11006 /* Set up the SGL pages in the non-embedded DMA pages */
11007 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
11008 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
11011 list_for_each_entry(psb
, sblist
, list
) {
11012 /* Set up the sge entry */
11013 sgl_pg_pairs
->sgl_pg0_addr_lo
=
11014 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
11015 sgl_pg_pairs
->sgl_pg0_addr_hi
=
11016 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
11017 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
11018 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
11020 pdma_phys_bpl1
= 0;
11021 sgl_pg_pairs
->sgl_pg1_addr_lo
=
11022 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
11023 sgl_pg_pairs
->sgl_pg1_addr_hi
=
11024 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
11025 /* Keep the first xritag on the list */
11027 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
11031 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
11032 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
11033 /* Perform endian conversion if necessary */
11034 sgl
->word0
= cpu_to_le32(sgl
->word0
);
11036 if (!phba
->sli4_hba
.intr_enable
)
11037 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11039 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11040 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
11042 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
11043 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11044 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11045 if (rc
!= MBX_TIMEOUT
)
11046 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11047 if (shdr_status
|| shdr_add_status
|| rc
) {
11048 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11049 "2564 POST_SGL_BLOCK mailbox command failed "
11050 "status x%x add_status x%x mbx status x%x\n",
11051 shdr_status
, shdr_add_status
, rc
);
11058 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11059 * @phba: pointer to lpfc_hba struct that the frame was received on
11060 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11062 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11063 * valid type of frame that the LPFC driver will handle. This function will
11064 * return a zero if the frame is a valid frame or a non zero value when the
11065 * frame does not pass the check.
11068 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
11070 char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
11071 char *type_names
[] = FC_TYPE_NAMES_INIT
;
11072 struct fc_vft_header
*fc_vft_hdr
;
11074 switch (fc_hdr
->fh_r_ctl
) {
11075 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
11076 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
11077 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
11078 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
11079 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
11080 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
11081 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
11082 case FC_RCTL_DD_CMD_STATUS
: /* command status */
11083 case FC_RCTL_ELS_REQ
: /* extended link services request */
11084 case FC_RCTL_ELS_REP
: /* extended link services reply */
11085 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
11086 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
11087 case FC_RCTL_BA_NOP
: /* basic link service NOP */
11088 case FC_RCTL_BA_ABTS
: /* basic link service abort */
11089 case FC_RCTL_BA_RMC
: /* remove connection */
11090 case FC_RCTL_BA_ACC
: /* basic accept */
11091 case FC_RCTL_BA_RJT
: /* basic reject */
11092 case FC_RCTL_BA_PRMT
:
11093 case FC_RCTL_ACK_1
: /* acknowledge_1 */
11094 case FC_RCTL_ACK_0
: /* acknowledge_0 */
11095 case FC_RCTL_P_RJT
: /* port reject */
11096 case FC_RCTL_F_RJT
: /* fabric reject */
11097 case FC_RCTL_P_BSY
: /* port busy */
11098 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
11099 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
11100 case FC_RCTL_LCR
: /* link credit reset */
11101 case FC_RCTL_END
: /* end */
11103 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
11104 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11105 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
11106 return lpfc_fc_frame_check(phba
, fc_hdr
);
11110 switch (fc_hdr
->fh_type
) {
11121 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11122 "2538 Received frame rctl:%s type:%s\n",
11123 rctl_names
[fc_hdr
->fh_r_ctl
],
11124 type_names
[fc_hdr
->fh_type
]);
11127 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11128 "2539 Dropped frame rctl:%s type:%s\n",
11129 rctl_names
[fc_hdr
->fh_r_ctl
],
11130 type_names
[fc_hdr
->fh_type
]);
11135 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11136 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11138 * This function processes the FC header to retrieve the VFI from the VF
11139 * header, if one exists. This function will return the VFI if one exists
11140 * or 0 if no VSAN Header exists.
11143 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
11145 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11147 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
11149 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
11153 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11154 * @phba: Pointer to the HBA structure to search for the vport on
11155 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11156 * @fcfi: The FC Fabric ID that the frame came from
11158 * This function searches the @phba for a vport that matches the content of the
11159 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11160 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11161 * returns the matching vport pointer or NULL if unable to match frame to a
11164 static struct lpfc_vport
*
11165 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
11168 struct lpfc_vport
**vports
;
11169 struct lpfc_vport
*vport
= NULL
;
11171 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
11172 fc_hdr
->fh_d_id
[1] << 8 |
11173 fc_hdr
->fh_d_id
[2]);
11175 vports
= lpfc_create_vport_work_array(phba
);
11176 if (vports
!= NULL
)
11177 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
11178 if (phba
->fcf
.fcfi
== fcfi
&&
11179 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
11180 vports
[i
]->fc_myDID
== did
) {
11185 lpfc_destroy_vport_work_array(phba
, vports
);
11190 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11191 * @vport: The vport to work on.
11193 * This function updates the receive sequence time stamp for this vport. The
11194 * receive sequence time stamp indicates the time that the last frame of the
11195 * the sequence that has been idle for the longest amount of time was received.
11196 * the driver uses this time stamp to indicate if any received sequences have
11200 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
11202 struct lpfc_dmabuf
*h_buf
;
11203 struct hbq_dmabuf
*dmabuf
= NULL
;
11205 /* get the oldest sequence on the rcv list */
11206 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
11207 struct lpfc_dmabuf
, list
);
11210 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11211 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
11215 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11216 * @vport: The vport that the received sequences were sent to.
11218 * This function cleans up all outstanding received sequences. This is called
11219 * by the driver when a link event or user action invalidates all the received
11223 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
11225 struct lpfc_dmabuf
*h_buf
, *hnext
;
11226 struct lpfc_dmabuf
*d_buf
, *dnext
;
11227 struct hbq_dmabuf
*dmabuf
= NULL
;
11229 /* start with the oldest sequence on the rcv list */
11230 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11231 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11232 list_del_init(&dmabuf
->hbuf
.list
);
11233 list_for_each_entry_safe(d_buf
, dnext
,
11234 &dmabuf
->dbuf
.list
, list
) {
11235 list_del_init(&d_buf
->list
);
11236 lpfc_in_buf_free(vport
->phba
, d_buf
);
11238 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11243 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11244 * @vport: The vport that the received sequences were sent to.
11246 * This function determines whether any received sequences have timed out by
11247 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11248 * indicates that there is at least one timed out sequence this routine will
11249 * go through the received sequences one at a time from most inactive to most
11250 * active to determine which ones need to be cleaned up. Once it has determined
11251 * that a sequence needs to be cleaned up it will simply free up the resources
11252 * without sending an abort.
11255 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
11257 struct lpfc_dmabuf
*h_buf
, *hnext
;
11258 struct lpfc_dmabuf
*d_buf
, *dnext
;
11259 struct hbq_dmabuf
*dmabuf
= NULL
;
11260 unsigned long timeout
;
11261 int abort_count
= 0;
11263 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11264 vport
->rcv_buffer_time_stamp
);
11265 if (list_empty(&vport
->rcv_buffer_list
) ||
11266 time_before(jiffies
, timeout
))
11268 /* start with the oldest sequence on the rcv list */
11269 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11270 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11271 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11272 dmabuf
->time_stamp
);
11273 if (time_before(jiffies
, timeout
))
11276 list_del_init(&dmabuf
->hbuf
.list
);
11277 list_for_each_entry_safe(d_buf
, dnext
,
11278 &dmabuf
->dbuf
.list
, list
) {
11279 list_del_init(&d_buf
->list
);
11280 lpfc_in_buf_free(vport
->phba
, d_buf
);
11282 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11285 lpfc_update_rcv_time_stamp(vport
);
11289 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11290 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11292 * This function searches through the existing incomplete sequences that have
11293 * been sent to this @vport. If the frame matches one of the incomplete
11294 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11295 * make up that sequence. If no sequence is found that matches this frame then
11296 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11297 * This function returns a pointer to the first dmabuf in the sequence list that
11298 * the frame was linked to.
11300 static struct hbq_dmabuf
*
11301 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
11303 struct fc_frame_header
*new_hdr
;
11304 struct fc_frame_header
*temp_hdr
;
11305 struct lpfc_dmabuf
*d_buf
;
11306 struct lpfc_dmabuf
*h_buf
;
11307 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11308 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
11310 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11311 dmabuf
->time_stamp
= jiffies
;
11312 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11313 /* Use the hdr_buf to find the sequence that this frame belongs to */
11314 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11315 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11316 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11317 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11318 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11320 /* found a pending sequence that matches this frame */
11321 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11326 * This indicates first frame received for this sequence.
11327 * Queue the buffer on the vport's rcv_buffer_list.
11329 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11330 lpfc_update_rcv_time_stamp(vport
);
11333 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
11334 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
11335 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11336 list_del_init(&seq_dmabuf
->hbuf
.list
);
11337 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11338 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11339 lpfc_update_rcv_time_stamp(vport
);
11342 /* move this sequence to the tail to indicate a young sequence */
11343 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11344 seq_dmabuf
->time_stamp
= jiffies
;
11345 lpfc_update_rcv_time_stamp(vport
);
11346 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
11347 temp_hdr
= dmabuf
->hbuf
.virt
;
11348 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11351 /* find the correct place in the sequence to insert this frame */
11352 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11353 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11354 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
11356 * If the frame's sequence count is greater than the frame on
11357 * the list then insert the frame right after this frame
11359 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
11360 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11361 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
11369 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11370 * @vport: pointer to a vitural port
11371 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11373 * This function tries to abort from the partially assembed sequence, described
11374 * by the information from basic abbort @dmabuf. It checks to see whether such
11375 * partially assembled sequence held by the driver. If so, it shall free up all
11376 * the frames from the partially assembled sequence.
11379 * true -- if there is matching partially assembled sequence present and all
11380 * the frames freed with the sequence;
11381 * false -- if there is no matching partially assembled sequence present so
11382 * nothing got aborted in the lower layer driver
11385 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
11386 struct hbq_dmabuf
*dmabuf
)
11388 struct fc_frame_header
*new_hdr
;
11389 struct fc_frame_header
*temp_hdr
;
11390 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
11391 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11393 /* Use the hdr_buf to find the sequence that matches this frame */
11394 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11395 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
11396 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11397 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11398 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11399 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11400 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11401 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11403 /* found a pending sequence that matches this frame */
11404 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11408 /* Free up all the frames from the partially assembled sequence */
11410 list_for_each_entry_safe(d_buf
, n_buf
,
11411 &seq_dmabuf
->dbuf
.list
, list
) {
11412 list_del_init(&d_buf
->list
);
11413 lpfc_in_buf_free(vport
->phba
, d_buf
);
11421 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11422 * @phba: Pointer to HBA context object.
11423 * @cmd_iocbq: pointer to the command iocbq structure.
11424 * @rsp_iocbq: pointer to the response iocbq structure.
11426 * This function handles the sequence abort accept iocb command complete
11427 * event. It properly releases the memory allocated to the sequence abort
11431 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba
*phba
,
11432 struct lpfc_iocbq
*cmd_iocbq
,
11433 struct lpfc_iocbq
*rsp_iocbq
)
11436 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
11440 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11441 * @phba: Pointer to HBA context object.
11442 * @fc_hdr: pointer to a FC frame header.
11444 * This function sends a basic accept to a previous unsol sequence abort
11445 * event after aborting the sequence handling.
11448 lpfc_sli4_seq_abort_acc(struct lpfc_hba
*phba
,
11449 struct fc_frame_header
*fc_hdr
)
11451 struct lpfc_iocbq
*ctiocb
= NULL
;
11452 struct lpfc_nodelist
*ndlp
;
11453 uint16_t oxid
, rxid
;
11454 uint32_t sid
, fctl
;
11457 if (!lpfc_is_link_up(phba
))
11460 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11461 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11462 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
11464 ndlp
= lpfc_findnode_did(phba
->pport
, sid
);
11466 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11467 "1268 Find ndlp returned NULL for oxid:x%x "
11468 "SID:x%x\n", oxid
, sid
);
11472 /* Allocate buffer for acc iocb */
11473 ctiocb
= lpfc_sli_get_iocbq(phba
);
11477 /* Extract the F_CTL field from FC_HDR */
11478 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
11480 icmd
= &ctiocb
->iocb
;
11481 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
11482 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
11483 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
11484 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
11485 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
11487 /* Fill in the rest of iocb fields */
11488 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
11489 icmd
->ulpBdeCount
= 0;
11491 icmd
->ulpClass
= CLASS3
;
11492 icmd
->ulpContext
= ndlp
->nlp_rpi
;
11494 ctiocb
->iocb_cmpl
= NULL
;
11495 ctiocb
->vport
= phba
->pport
;
11496 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_acc_cmpl
;
11498 if (fctl
& FC_FC_EX_CTX
) {
11499 /* ABTS sent by responder to CT exchange, construction
11500 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
11501 * field and RX_ID from ABTS for RX_ID field.
11503 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_RSP
);
11504 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, rxid
);
11505 ctiocb
->sli4_xritag
= oxid
;
11507 /* ABTS sent by initiator to CT exchange, construction
11508 * of BA_ACC will need to allocate a new XRI as for the
11509 * XRI_TAG and RX_ID fields.
11511 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_INT
);
11512 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, NO_XRI
);
11513 ctiocb
->sli4_xritag
= NO_XRI
;
11515 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_acc
, oxid
);
11517 /* Xmit CT abts accept on exchange <xid> */
11518 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11519 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
11520 CMD_XMIT_BLS_RSP64_CX
, phba
->link_state
);
11521 lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
11525 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
11526 * @vport: Pointer to the vport on which this sequence was received
11527 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11529 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
11530 * receive sequence is only partially assembed by the driver, it shall abort
11531 * the partially assembled frames for the sequence. Otherwise, if the
11532 * unsolicited receive sequence has been completely assembled and passed to
11533 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
11534 * unsolicited sequence has been aborted. After that, it will issue a basic
11535 * accept to accept the abort.
11538 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
11539 struct hbq_dmabuf
*dmabuf
)
11541 struct lpfc_hba
*phba
= vport
->phba
;
11542 struct fc_frame_header fc_hdr
;
11546 /* Make a copy of fc_hdr before the dmabuf being released */
11547 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
11548 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
11550 if (fctl
& FC_FC_EX_CTX
) {
11552 * ABTS sent by responder to exchange, just free the buffer
11554 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11557 * ABTS sent by initiator to exchange, need to do cleanup
11559 /* Try to abort partially assembled seq */
11560 abts_par
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
11562 /* Send abort to ULP if partially seq abort failed */
11563 if (abts_par
== false)
11564 lpfc_sli4_send_seq_to_ulp(vport
, dmabuf
);
11566 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11568 /* Send basic accept (BA_ACC) to the abort requester */
11569 lpfc_sli4_seq_abort_acc(phba
, &fc_hdr
);
11573 * lpfc_seq_complete - Indicates if a sequence is complete
11574 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11576 * This function checks the sequence, starting with the frame described by
11577 * @dmabuf, to see if all the frames associated with this sequence are present.
11578 * the frames associated with this sequence are linked to the @dmabuf using the
11579 * dbuf list. This function looks for two major things. 1) That the first frame
11580 * has a sequence count of zero. 2) There is a frame with last frame of sequence
11581 * set. 3) That there are no holes in the sequence count. The function will
11582 * return 1 when the sequence is complete, otherwise it will return 0.
11585 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
11587 struct fc_frame_header
*hdr
;
11588 struct lpfc_dmabuf
*d_buf
;
11589 struct hbq_dmabuf
*seq_dmabuf
;
11593 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11594 /* make sure first fame of sequence has a sequence count of zero */
11595 if (hdr
->fh_seq_cnt
!= seq_count
)
11597 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11598 hdr
->fh_f_ctl
[1] << 8 |
11600 /* If last frame of sequence we can return success. */
11601 if (fctl
& FC_FC_END_SEQ
)
11603 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
11604 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11605 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11606 /* If there is a hole in the sequence count then fail. */
11607 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
11609 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
11610 hdr
->fh_f_ctl
[1] << 8 |
11612 /* If last frame of sequence we can return success. */
11613 if (fctl
& FC_FC_END_SEQ
)
11620 * lpfc_prep_seq - Prep sequence for ULP processing
11621 * @vport: Pointer to the vport on which this sequence was received
11622 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11624 * This function takes a sequence, described by a list of frames, and creates
11625 * a list of iocbq structures to describe the sequence. This iocbq list will be
11626 * used to issue to the generic unsolicited sequence handler. This routine
11627 * returns a pointer to the first iocbq in the list. If the function is unable
11628 * to allocate an iocbq then it throw out the received frames that were not
11629 * able to be described and return a pointer to the first iocbq. If unable to
11630 * allocate any iocbqs (including the first) this function will return NULL.
11632 static struct lpfc_iocbq
*
11633 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
11635 struct lpfc_dmabuf
*d_buf
, *n_buf
;
11636 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
11637 struct fc_frame_header
*fc_hdr
;
11639 struct ulp_bde64
*pbde
;
11641 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11642 /* remove from receive buffer list */
11643 list_del_init(&seq_dmabuf
->hbuf
.list
);
11644 lpfc_update_rcv_time_stamp(vport
);
11645 /* get the Remote Port's SID */
11646 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11647 /* Get an iocbq struct to fill in. */
11648 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11650 /* Initialize the first IOCB. */
11651 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
11652 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
11653 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
11654 first_iocbq
->iocb
.ulpContext
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11655 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
11656 vport
->vpi
+ vport
->phba
->vpi_base
;
11657 /* put the first buffer into the first IOCBq */
11658 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
11659 first_iocbq
->context3
= NULL
;
11660 first_iocbq
->iocb
.ulpBdeCount
= 1;
11661 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11662 LPFC_DATA_BUF_SIZE
;
11663 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11664 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11665 bf_get(lpfc_rcqe_length
,
11666 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11668 iocbq
= first_iocbq
;
11670 * Each IOCBq can have two Buffers assigned, so go through the list
11671 * of buffers for this sequence and save two buffers in each IOCBq
11673 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11675 lpfc_in_buf_free(vport
->phba
, d_buf
);
11678 if (!iocbq
->context3
) {
11679 iocbq
->context3
= d_buf
;
11680 iocbq
->iocb
.ulpBdeCount
++;
11681 pbde
= (struct ulp_bde64
*)
11682 &iocbq
->iocb
.unsli3
.sli3Words
[4];
11683 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
11684 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11685 bf_get(lpfc_rcqe_length
,
11686 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11688 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
11691 first_iocbq
->iocb
.ulpStatus
=
11692 IOSTAT_FCP_RSP_ERROR
;
11693 first_iocbq
->iocb
.un
.ulpWord
[4] =
11694 IOERR_NO_RESOURCES
;
11696 lpfc_in_buf_free(vport
->phba
, d_buf
);
11699 iocbq
->context2
= d_buf
;
11700 iocbq
->context3
= NULL
;
11701 iocbq
->iocb
.ulpBdeCount
= 1;
11702 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
11703 LPFC_DATA_BUF_SIZE
;
11704 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
11705 bf_get(lpfc_rcqe_length
,
11706 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11707 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
11708 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
11711 return first_iocbq
;
11715 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
11716 struct hbq_dmabuf
*seq_dmabuf
)
11718 struct fc_frame_header
*fc_hdr
;
11719 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
11720 struct lpfc_hba
*phba
= vport
->phba
;
11722 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
11723 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
11725 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11726 "2707 Ring %d handler: Failed to allocate "
11727 "iocb Rctl x%x Type x%x received\n",
11729 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11732 if (!lpfc_complete_unsol_iocb(phba
,
11733 &phba
->sli
.ring
[LPFC_ELS_RING
],
11734 iocbq
, fc_hdr
->fh_r_ctl
,
11736 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11737 "2540 Ring %d handler: unexpected Rctl "
11738 "x%x Type x%x received\n",
11740 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
11742 /* Free iocb created in lpfc_prep_seq */
11743 list_for_each_entry_safe(curr_iocb
, next_iocb
,
11744 &iocbq
->list
, list
) {
11745 list_del_init(&curr_iocb
->list
);
11746 lpfc_sli_release_iocbq(phba
, curr_iocb
);
11748 lpfc_sli_release_iocbq(phba
, iocbq
);
11752 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
11753 * @phba: Pointer to HBA context object.
11755 * This function is called with no lock held. This function processes all
11756 * the received buffers and gives it to upper layers when a received buffer
11757 * indicates that it is the final frame in the sequence. The interrupt
11758 * service routine processes received buffers at interrupt contexts and adds
11759 * received dma buffers to the rb_pend_list queue and signals the worker thread.
11760 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
11761 * appropriate receive function when the final frame in a sequence is received.
11764 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
11765 struct hbq_dmabuf
*dmabuf
)
11767 struct hbq_dmabuf
*seq_dmabuf
;
11768 struct fc_frame_header
*fc_hdr
;
11769 struct lpfc_vport
*vport
;
11772 /* Process each received buffer */
11773 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11774 /* check to see if this a valid type of frame */
11775 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
11776 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11779 fcfi
= bf_get(lpfc_rcqe_fcf_id
, &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
11780 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
11781 if (!vport
|| !(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
11782 /* throw out the frame */
11783 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11786 /* Handle the basic abort sequence (BA_ABTS) event */
11787 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
11788 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
11792 /* Link this frame */
11793 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
11795 /* unable to add frame to vport - throw it out */
11796 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
11799 /* If not last frame in sequence continue processing frames. */
11800 if (!lpfc_seq_complete(seq_dmabuf
))
11803 /* Send the complete sequence to the upper layer protocol */
11804 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
11808 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
11809 * @phba: pointer to lpfc hba data structure.
11811 * This routine is invoked to post rpi header templates to the
11812 * HBA consistent with the SLI-4 interface spec. This routine
11813 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11814 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11816 * This routine does not require any locks. It's usage is expected
11817 * to be driver load or reset recovery when the driver is
11822 * EIO - The mailbox failed to complete successfully.
11823 * When this error occurs, the driver is not guaranteed
11824 * to have any rpi regions posted to the device and
11825 * must either attempt to repost the regions or take a
11829 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
11831 struct lpfc_rpi_hdr
*rpi_page
;
11834 /* Post all rpi memory regions to the port. */
11835 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
11836 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
11837 if (rc
!= MBX_SUCCESS
) {
11838 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11839 "2008 Error %d posting all rpi "
11850 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
11851 * @phba: pointer to lpfc hba data structure.
11852 * @rpi_page: pointer to the rpi memory region.
11854 * This routine is invoked to post a single rpi header to the
11855 * HBA consistent with the SLI-4 interface spec. This memory region
11856 * maps up to 64 rpi context regions.
11860 * ENOMEM - No available memory
11861 * EIO - The mailbox failed to complete successfully.
11864 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
11866 LPFC_MBOXQ_t
*mboxq
;
11867 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
11870 uint32_t shdr_status
, shdr_add_status
;
11871 union lpfc_sli4_cfg_shdr
*shdr
;
11873 /* The port is notified of the header region via a mailbox command. */
11874 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11876 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11877 "2001 Unable to allocate memory for issuing "
11878 "SLI_CONFIG_SPECIAL mailbox command\n");
11882 /* Post all rpi memory regions to the port. */
11883 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
11884 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11885 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11886 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
11887 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
11888 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
11889 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
11890 hdr_tmpl
, rpi_page
->page_count
);
11891 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
11892 rpi_page
->start_rpi
);
11893 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
11894 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
11895 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
11896 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
11897 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11898 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11899 if (rc
!= MBX_TIMEOUT
)
11900 mempool_free(mboxq
, phba
->mbox_mem_pool
);
11901 if (shdr_status
|| shdr_add_status
|| rc
) {
11902 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11903 "2514 POST_RPI_HDR mailbox failed with "
11904 "status x%x add_status x%x, mbx status x%x\n",
11905 shdr_status
, shdr_add_status
, rc
);
11912 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
11913 * @phba: pointer to lpfc hba data structure.
11915 * This routine is invoked to post rpi header templates to the
11916 * HBA consistent with the SLI-4 interface spec. This routine
11917 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
11918 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
11921 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
11922 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
11925 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
11928 uint16_t max_rpi
, rpi_base
, rpi_limit
;
11929 uint16_t rpi_remaining
;
11930 struct lpfc_rpi_hdr
*rpi_hdr
;
11932 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
11933 rpi_base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
11934 rpi_limit
= phba
->sli4_hba
.next_rpi
;
11937 * The valid rpi range is not guaranteed to be zero-based. Start
11938 * the search at the rpi_base as reported by the port.
11940 spin_lock_irq(&phba
->hbalock
);
11941 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, rpi_base
);
11942 if (rpi
>= rpi_limit
|| rpi
< rpi_base
)
11943 rpi
= LPFC_RPI_ALLOC_ERROR
;
11945 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
11946 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
11947 phba
->sli4_hba
.rpi_count
++;
11951 * Don't try to allocate more rpi header regions if the device limit
11952 * on available rpis max has been exhausted.
11954 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
11955 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
11956 spin_unlock_irq(&phba
->hbalock
);
11961 * If the driver is running low on rpi resources, allocate another
11962 * page now. Note that the next_rpi value is used because
11963 * it represents how many are actually in use whereas max_rpi notes
11964 * how many are supported max by the device.
11966 rpi_remaining
= phba
->sli4_hba
.next_rpi
- rpi_base
-
11967 phba
->sli4_hba
.rpi_count
;
11968 spin_unlock_irq(&phba
->hbalock
);
11969 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
11970 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
11972 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11973 "2002 Error Could not grow rpi "
11976 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
11984 * lpfc_sli4_free_rpi - Release an rpi for reuse.
11985 * @phba: pointer to lpfc hba data structure.
11987 * This routine is invoked to release an rpi to the pool of
11988 * available rpis maintained by the driver.
11991 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
11993 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
11994 phba
->sli4_hba
.rpi_count
--;
11995 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
12000 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12001 * @phba: pointer to lpfc hba data structure.
12003 * This routine is invoked to release an rpi to the pool of
12004 * available rpis maintained by the driver.
12007 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
12009 spin_lock_irq(&phba
->hbalock
);
12010 __lpfc_sli4_free_rpi(phba
, rpi
);
12011 spin_unlock_irq(&phba
->hbalock
);
12015 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
12016 * @phba: pointer to lpfc hba data structure.
12018 * This routine is invoked to remove the memory region that
12019 * provided rpi via a bitmask.
12022 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
12024 kfree(phba
->sli4_hba
.rpi_bmask
);
12028 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12029 * @phba: pointer to lpfc hba data structure.
12031 * This routine is invoked to remove the memory region that
12032 * provided rpi via a bitmask.
12035 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
)
12037 LPFC_MBOXQ_t
*mboxq
;
12038 struct lpfc_hba
*phba
= ndlp
->phba
;
12041 /* The port is notified of the header region via a mailbox command. */
12042 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12046 /* Post all rpi memory regions to the port. */
12047 lpfc_resume_rpi(mboxq
, ndlp
);
12048 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12049 if (rc
== MBX_NOT_FINISHED
) {
12050 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12051 "2010 Resume RPI Mailbox failed "
12052 "status %d, mbxStatus x%x\n", rc
,
12053 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12054 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12061 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12062 * @phba: pointer to lpfc hba data structure.
12063 * @vpi: vpi value to activate with the port.
12065 * This routine is invoked to activate a vpi with the
12066 * port when the host intends to use vports with a
12071 * -Evalue otherwise
12074 lpfc_sli4_init_vpi(struct lpfc_hba
*phba
, uint16_t vpi
)
12076 LPFC_MBOXQ_t
*mboxq
;
12078 int retval
= MBX_SUCCESS
;
12083 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12086 lpfc_init_vpi(phba
, mboxq
, vpi
);
12087 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_INIT_VPI
);
12088 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
12089 if (rc
!= MBX_SUCCESS
) {
12090 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12091 "2022 INIT VPI Mailbox failed "
12092 "status %d, mbxStatus x%x\n", rc
,
12093 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12096 if (rc
!= MBX_TIMEOUT
)
12097 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12103 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12104 * @phba: pointer to lpfc hba data structure.
12105 * @mboxq: Pointer to mailbox object.
12107 * This routine is invoked to manually add a single FCF record. The caller
12108 * must pass a completely initialized FCF_Record. This routine takes
12109 * care of the nonembedded mailbox operations.
12112 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
12115 union lpfc_sli4_cfg_shdr
*shdr
;
12116 uint32_t shdr_status
, shdr_add_status
;
12118 virt_addr
= mboxq
->sge_array
->addr
[0];
12119 /* The IOCTL status is embedded in the mailbox subheader. */
12120 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
12121 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12122 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12124 if ((shdr_status
|| shdr_add_status
) &&
12125 (shdr_status
!= STATUS_FCF_IN_USE
))
12126 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12127 "2558 ADD_FCF_RECORD mailbox failed with "
12128 "status x%x add_status x%x\n",
12129 shdr_status
, shdr_add_status
);
12131 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12135 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12136 * @phba: pointer to lpfc hba data structure.
12137 * @fcf_record: pointer to the initialized fcf record to add.
12139 * This routine is invoked to manually add a single FCF record. The caller
12140 * must pass a completely initialized FCF_Record. This routine takes
12141 * care of the nonembedded mailbox operations.
12144 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
12147 LPFC_MBOXQ_t
*mboxq
;
12150 dma_addr_t phys_addr
;
12151 struct lpfc_mbx_sge sge
;
12152 uint32_t alloc_len
, req_len
;
12155 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12157 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12158 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12162 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
12165 /* Allocate DMA memory and set up the non-embedded mailbox command */
12166 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12167 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
12168 req_len
, LPFC_SLI4_MBX_NEMBED
);
12169 if (alloc_len
< req_len
) {
12170 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12171 "2523 Allocated DMA memory size (x%x) is "
12172 "less than the requested DMA memory "
12173 "size (x%x)\n", alloc_len
, req_len
);
12174 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12179 * Get the first SGE entry from the non-embedded DMA memory. This
12180 * routine only uses a single SGE.
12182 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
12183 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
12184 virt_addr
= mboxq
->sge_array
->addr
[0];
12186 * Configure the FCF record for FCFI 0. This is the driver's
12187 * hardcoded default and gets used in nonFIP mode.
12189 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
12190 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
12191 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
12194 * Copy the fcf_index and the FCF Record Data. The data starts after
12195 * the FCoE header plus word10. The data copy needs to be endian
12198 bytep
+= sizeof(uint32_t);
12199 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
12200 mboxq
->vport
= phba
->pport
;
12201 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
12202 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12203 if (rc
== MBX_NOT_FINISHED
) {
12204 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12205 "2515 ADD_FCF_RECORD mailbox failed with "
12206 "status 0x%x\n", rc
);
12207 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12216 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12217 * @phba: pointer to lpfc hba data structure.
12218 * @fcf_record: pointer to the fcf record to write the default data.
12219 * @fcf_index: FCF table entry index.
12221 * This routine is invoked to build the driver's default FCF record. The
12222 * values used are hardcoded. This routine handles memory initialization.
12226 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
12227 struct fcf_record
*fcf_record
,
12228 uint16_t fcf_index
)
12230 memset(fcf_record
, 0, sizeof(struct fcf_record
));
12231 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
12232 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
12233 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
12234 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
12235 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
12236 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
12237 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
12238 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
12239 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
12240 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
12241 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
12242 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
12243 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
12244 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
12245 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
12246 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
12247 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
12248 /* Set the VLAN bit map */
12249 if (phba
->valid_vlan
) {
12250 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
12251 = 1 << (phba
->vlan_id
% 8);
12256 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12257 * @phba: pointer to lpfc hba data structure.
12258 * @fcf_index: FCF table entry offset.
12260 * This routine is invoked to scan the entire FCF table by reading FCF
12261 * record and processing it one at a time starting from the @fcf_index
12262 * for initial FCF discovery or fast FCF failover rediscovery.
12264 * Return 0 if the mailbox command is submitted sucessfully, none 0
12268 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12271 LPFC_MBOXQ_t
*mboxq
;
12273 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
12274 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12276 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12277 "2000 Failed to allocate mbox for "
12280 goto fail_fcf_scan
;
12282 /* Construct the read FCF record mailbox command */
12283 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12286 goto fail_fcf_scan
;
12288 /* Issue the mailbox command asynchronously */
12289 mboxq
->vport
= phba
->pport
;
12290 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
12291 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12292 if (rc
== MBX_NOT_FINISHED
)
12295 spin_lock_irq(&phba
->hbalock
);
12296 phba
->hba_flag
|= FCF_DISC_INPROGRESS
;
12297 spin_unlock_irq(&phba
->hbalock
);
12298 /* Reset eligible FCF count for new scan */
12299 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
12300 phba
->fcf
.eligible_fcf_cnt
= 0;
12306 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12307 /* FCF scan failed, clear FCF_DISC_INPROGRESS flag */
12308 spin_lock_irq(&phba
->hbalock
);
12309 phba
->hba_flag
&= ~FCF_DISC_INPROGRESS
;
12310 spin_unlock_irq(&phba
->hbalock
);
12316 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for round robin fcf.
12317 * @phba: pointer to lpfc hba data structure.
12318 * @fcf_index: FCF table entry offset.
12320 * This routine is invoked to read an FCF record indicated by @fcf_index
12321 * and to use it for FLOGI round robin FCF failover.
12323 * Return 0 if the mailbox command is submitted sucessfully, none 0
12327 lpfc_sli4_fcf_rr_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 "2763 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_fcf_rr_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_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12363 * @phba: pointer to lpfc hba data structure.
12364 * @fcf_index: FCF table entry offset.
12366 * This routine is invoked to read an FCF record indicated by @fcf_index to
12367 * determine whether it's eligible for FLOGI round robin failover list.
12369 * Return 0 if the mailbox command is submitted sucessfully, none 0
12373 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12376 LPFC_MBOXQ_t
*mboxq
;
12378 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12380 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12381 "2758 Failed to allocate mbox for "
12384 goto fail_fcf_read
;
12386 /* Construct the read FCF record mailbox command */
12387 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12390 goto fail_fcf_read
;
12392 /* Issue the mailbox command asynchronously */
12393 mboxq
->vport
= phba
->pport
;
12394 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
12395 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12396 if (rc
== MBX_NOT_FINISHED
)
12402 if (error
&& mboxq
)
12403 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12408 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12409 * @phba: pointer to lpfc hba data structure.
12411 * This routine is to get the next eligible FCF record index in a round
12412 * robin fashion. If the next eligible FCF record index equals to the
12413 * initial round robin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12414 * shall be returned, otherwise, the next eligible FCF record's index
12415 * shall be returned.
12418 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
12420 uint16_t next_fcf_index
;
12422 /* Search start from next bit of currently registered FCF index */
12423 next_fcf_index
= (phba
->fcf
.current_rec
.fcf_indx
+ 1) %
12424 LPFC_SLI4_FCF_TBL_INDX_MAX
;
12425 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12426 LPFC_SLI4_FCF_TBL_INDX_MAX
,
12429 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12430 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
12431 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12432 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
12434 /* Check roundrobin failover list empty condition */
12435 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12436 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12437 "2844 No roundrobin failover FCF available\n");
12438 return LPFC_FCOE_FCF_NEXT_NONE
;
12441 /* Check roundrobin failover index bmask stop condition */
12442 if (next_fcf_index
== phba
->fcf
.fcf_rr_init_indx
) {
12443 if (!(phba
->fcf
.fcf_flag
& FCF_REDISC_RRU
)) {
12444 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12445 "2847 Round robin failover FCF index "
12446 "search hit stop condition:x%x\n",
12448 return LPFC_FCOE_FCF_NEXT_NONE
;
12450 /* The roundrobin failover index bmask updated, start over */
12451 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12452 "2848 Round robin failover FCF index bmask "
12453 "updated, start over\n");
12454 spin_lock_irq(&phba
->hbalock
);
12455 phba
->fcf
.fcf_flag
&= ~FCF_REDISC_RRU
;
12456 spin_unlock_irq(&phba
->hbalock
);
12457 return phba
->fcf
.fcf_rr_init_indx
;
12460 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12461 "2845 Get next round robin failover "
12462 "FCF index x%x\n", next_fcf_index
);
12463 return next_fcf_index
;
12467 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12468 * @phba: pointer to lpfc hba data structure.
12470 * This routine sets the FCF record index in to the eligible bmask for
12471 * round robin failover search. It checks to make sure that the index
12472 * does not go beyond the range of the driver allocated bmask dimension
12473 * before setting the bit.
12475 * Returns 0 if the index bit successfully set, otherwise, it returns
12479 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12481 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12482 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12483 "2610 HBA FCF index reached driver's "
12484 "book keeping dimension: fcf_index:%d, "
12485 "driver_bmask_max:%d\n",
12486 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12489 /* Set the eligible FCF record index bmask */
12490 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12492 /* Set the roundrobin index bmask updated */
12493 spin_lock_irq(&phba
->hbalock
);
12494 phba
->fcf
.fcf_flag
|= FCF_REDISC_RRU
;
12495 spin_unlock_irq(&phba
->hbalock
);
12497 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12498 "2790 Set FCF index x%x to round robin failover "
12499 "bmask\n", fcf_index
);
12505 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
12506 * @phba: pointer to lpfc hba data structure.
12508 * This routine clears the FCF record index from the eligible bmask for
12509 * round robin failover search. It checks to make sure that the index
12510 * does not go beyond the range of the driver allocated bmask dimension
12511 * before clearing the bit.
12514 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12516 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12517 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12518 "2762 HBA FCF index goes beyond driver's "
12519 "book keeping dimension: fcf_index:%d, "
12520 "driver_bmask_max:%d\n",
12521 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12524 /* Clear the eligible FCF record index bmask */
12525 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12527 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12528 "2791 Clear FCF index x%x from round robin failover "
12529 "bmask\n", fcf_index
);
12533 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
12534 * @phba: pointer to lpfc hba data structure.
12536 * This routine is the completion routine for the rediscover FCF table mailbox
12537 * command. If the mailbox command returned failure, it will try to stop the
12538 * FCF rediscover wait timer.
12541 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
12543 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12544 uint32_t shdr_status
, shdr_add_status
;
12546 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12548 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
12549 &redisc_fcf
->header
.cfg_shdr
.response
);
12550 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
12551 &redisc_fcf
->header
.cfg_shdr
.response
);
12552 if (shdr_status
|| shdr_add_status
) {
12553 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12554 "2746 Requesting for FCF rediscovery failed "
12555 "status x%x add_status x%x\n",
12556 shdr_status
, shdr_add_status
);
12557 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
12558 spin_lock_irq(&phba
->hbalock
);
12559 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
12560 spin_unlock_irq(&phba
->hbalock
);
12562 * CVL event triggered FCF rediscover request failed,
12563 * last resort to re-try current registered FCF entry.
12565 lpfc_retry_pport_discovery(phba
);
12567 spin_lock_irq(&phba
->hbalock
);
12568 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
12569 spin_unlock_irq(&phba
->hbalock
);
12571 * DEAD FCF event triggered FCF rediscover request
12572 * failed, last resort to fail over as a link down
12573 * to FCF registration.
12575 lpfc_sli4_fcf_dead_failthrough(phba
);
12578 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12579 "2775 Start FCF rediscovery quiescent period "
12580 "wait timer before scaning FCF table\n");
12582 * Start FCF rediscovery wait timer for pending FCF
12583 * before rescan FCF record table.
12585 lpfc_fcf_redisc_wait_start_timer(phba
);
12588 mempool_free(mbox
, phba
->mbox_mem_pool
);
12592 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
12593 * @phba: pointer to lpfc hba data structure.
12595 * This routine is invoked to request for rediscovery of the entire FCF table
12599 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
12601 LPFC_MBOXQ_t
*mbox
;
12602 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
12605 /* Cancel retry delay timers to all vports before FCF rediscover */
12606 lpfc_cancel_all_vport_retry_delay_timer(phba
);
12608 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12610 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12611 "2745 Failed to allocate mbox for "
12612 "requesting FCF rediscover.\n");
12616 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
12617 sizeof(struct lpfc_sli4_cfg_mhdr
));
12618 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12619 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
12620 length
, LPFC_SLI4_MBX_EMBED
);
12622 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
12623 /* Set count to 0 for invalidating the entire FCF database */
12624 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
12626 /* Issue the mailbox command asynchronously */
12627 mbox
->vport
= phba
->pport
;
12628 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
12629 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
12631 if (rc
== MBX_NOT_FINISHED
) {
12632 mempool_free(mbox
, phba
->mbox_mem_pool
);
12639 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
12640 * @phba: pointer to lpfc hba data structure.
12642 * This function is the failover routine as a last resort to the FCF DEAD
12643 * event when driver failed to perform fast FCF failover.
12646 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
12648 uint32_t link_state
;
12651 * Last resort as FCF DEAD event failover will treat this as
12652 * a link down, but save the link state because we don't want
12653 * it to be changed to Link Down unless it is already down.
12655 link_state
= phba
->link_state
;
12656 lpfc_linkdown(phba
);
12657 phba
->link_state
= link_state
;
12659 /* Unregister FCF if no devices connected to it */
12660 lpfc_unregister_unused_fcf(phba
);
12664 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
12665 * @phba: pointer to lpfc hba data structure.
12667 * This function read region 23 and parse TLV for port status to
12668 * decide if the user disaled the port. If the TLV indicates the
12669 * port is disabled, the hba_flag is set accordingly.
12672 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
12674 LPFC_MBOXQ_t
*pmb
= NULL
;
12676 uint8_t *rgn23_data
= NULL
;
12677 uint32_t offset
= 0, data_size
, sub_tlv_len
, tlv_offset
;
12680 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12682 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12683 "2600 lpfc_sli_read_serdes_param failed to"
12684 " allocate mailbox memory\n");
12689 /* Get adapter Region 23 data */
12690 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
12695 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
12696 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
12698 if (rc
!= MBX_SUCCESS
) {
12699 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
12700 "2601 lpfc_sli_read_link_ste failed to"
12701 " read config region 23 rc 0x%x Status 0x%x\n",
12702 rc
, mb
->mbxStatus
);
12703 mb
->un
.varDmp
.word_cnt
= 0;
12706 * dump mem may return a zero when finished or we got a
12707 * mailbox error, either way we are done.
12709 if (mb
->un
.varDmp
.word_cnt
== 0)
12711 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
12712 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
12714 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
12715 rgn23_data
+ offset
,
12716 mb
->un
.varDmp
.word_cnt
);
12717 offset
+= mb
->un
.varDmp
.word_cnt
;
12718 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
12720 data_size
= offset
;
12726 /* Check the region signature first */
12727 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
12728 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12729 "2619 Config region 23 has bad signature\n");
12734 /* Check the data structure version */
12735 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
12736 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12737 "2620 Config region 23 has bad version\n");
12742 /* Parse TLV entries in the region */
12743 while (offset
< data_size
) {
12744 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
12747 * If the TLV is not driver specific TLV or driver id is
12748 * not linux driver id, skip the record.
12750 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
12751 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
12752 (rgn23_data
[offset
+ 3] != 0)) {
12753 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12757 /* Driver found a driver specific TLV in the config region */
12758 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
12763 * Search for configured port state sub-TLV.
12765 while ((offset
< data_size
) &&
12766 (tlv_offset
< sub_tlv_len
)) {
12767 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
12772 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
12773 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12774 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
12778 /* This HBA contains PORT_STE configured */
12779 if (!rgn23_data
[offset
+ 2])
12780 phba
->hba_flag
|= LINK_DISABLED
;
12787 mempool_free(pmb
, phba
->mbox_mem_pool
);
12793 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
12794 * @vport: pointer to vport data structure.
12796 * This function iterate through the mailboxq and clean up all REG_LOGIN
12797 * and REG_VPI mailbox commands associated with the vport. This function
12798 * is called when driver want to restart discovery of the vport due to
12799 * a Clear Virtual Link event.
12802 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
12804 struct lpfc_hba
*phba
= vport
->phba
;
12805 LPFC_MBOXQ_t
*mb
, *nextmb
;
12806 struct lpfc_dmabuf
*mp
;
12807 struct lpfc_nodelist
*ndlp
;
12808 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
12810 spin_lock_irq(&phba
->hbalock
);
12811 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
12812 if (mb
->vport
!= vport
)
12815 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
12816 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
12819 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
12820 if (phba
->sli_rev
== LPFC_SLI_REV4
)
12821 __lpfc_sli4_free_rpi(phba
,
12822 mb
->u
.mb
.un
.varRegLogin
.rpi
);
12823 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
12825 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
12828 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
12830 spin_lock_irq(shost
->host_lock
);
12831 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
12832 spin_unlock_irq(shost
->host_lock
);
12833 lpfc_nlp_put(ndlp
);
12834 mb
->context2
= NULL
;
12837 list_del(&mb
->list
);
12838 mempool_free(mb
, phba
->mbox_mem_pool
);
12840 mb
= phba
->sli
.mbox_active
;
12841 if (mb
&& (mb
->vport
== vport
)) {
12842 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
12843 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
12844 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
12845 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
12846 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
12848 spin_lock_irq(shost
->host_lock
);
12849 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
12850 spin_unlock_irq(shost
->host_lock
);
12851 lpfc_nlp_put(ndlp
);
12852 mb
->context2
= NULL
;
12854 /* Unregister the RPI when mailbox complete */
12855 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
12858 spin_unlock_irq(&phba
->hbalock
);
12862 * lpfc_drain_txq - Drain the txq
12863 * @phba: Pointer to HBA context object.
12865 * This function attempt to submit IOCBs on the txq
12866 * to the adapter. For SLI4 adapters, the txq contains
12867 * ELS IOCBs that have been deferred because the there
12868 * are no SGLs. This congestion can occur with large
12869 * vport counts during node discovery.
12873 lpfc_drain_txq(struct lpfc_hba
*phba
)
12875 LIST_HEAD(completions
);
12876 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
12877 struct lpfc_iocbq
*piocbq
= 0;
12878 unsigned long iflags
= 0;
12879 char *fail_msg
= NULL
;
12880 struct lpfc_sglq
*sglq
;
12881 union lpfc_wqe wqe
;
12883 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12884 if (pring
->txq_cnt
> pring
->txq_max
)
12885 pring
->txq_max
= pring
->txq_cnt
;
12887 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12889 while (pring
->txq_cnt
) {
12890 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12892 sglq
= __lpfc_sli_get_sglq(phba
);
12894 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12897 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
12899 /* The txq_cnt out of sync. This should
12902 sglq
= __lpfc_clear_active_sglq(phba
,
12903 sglq
->sli4_xritag
);
12904 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12905 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12906 "2823 txq empty and txq_cnt is %d\n ",
12912 /* The xri and iocb resources secured,
12913 * attempt to issue request
12915 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
12916 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
12917 fail_msg
= "to convert bpl to sgl";
12918 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
12919 fail_msg
= "to convert iocb to wqe";
12920 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
12921 fail_msg
= " - Wq is full";
12923 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
12926 /* Failed means we can't issue and need to cancel */
12927 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12928 "2822 IOCB failed %s iotag 0x%x "
12931 piocbq
->iotag
, piocbq
->sli4_xritag
);
12932 list_add_tail(&piocbq
->list
, &completions
);
12934 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12937 /* Cancel all the IOCBs that cannot be issued */
12938 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
12939 IOERR_SLI_ABORTED
);
12941 return pring
->txq_cnt
;