1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2013 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
*,
68 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*, struct lpfc_queue
*,
70 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*, struct list_head
*,
72 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*, struct lpfc_eqe
*,
76 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
82 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
83 * @q: The Work Queue to operate on.
84 * @wqe: The work Queue Entry to put on the Work queue.
86 * This routine will copy the contents of @wqe to the next available entry on
87 * the @q. This function will then ring the Work Queue Doorbell to signal the
88 * HBA to start processing the Work Queue Entry. This function returns 0 if
89 * successful. If no entries are available on @q then this function will return
91 * The caller is expected to hold the hbalock when calling this routine.
94 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
96 union lpfc_wqe
*temp_wqe
;
97 struct lpfc_register doorbell
;
101 /* sanity check on queue memory */
104 temp_wqe
= q
->qe
[q
->host_index
].wqe
;
106 /* If the host has not yet processed the next entry then we are done */
107 idx
= ((q
->host_index
+ 1) % q
->entry_count
);
108 if (idx
== q
->hba_index
) {
113 /* set consumption flag every once in a while */
114 if (!((q
->host_index
+ 1) % q
->entry_repost
))
115 bf_set(wqe_wqec
, &wqe
->generic
.wqe_com
, 1);
116 if (q
->phba
->sli3_options
& LPFC_SLI4_PHWQ_ENABLED
)
117 bf_set(wqe_wqid
, &wqe
->generic
.wqe_com
, q
->queue_id
);
118 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
120 /* Update the host index before invoking device */
121 host_index
= q
->host_index
;
127 if (q
->db_format
== LPFC_DB_LIST_FORMAT
) {
128 bf_set(lpfc_wq_db_list_fm_num_posted
, &doorbell
, 1);
129 bf_set(lpfc_wq_db_list_fm_index
, &doorbell
, host_index
);
130 bf_set(lpfc_wq_db_list_fm_id
, &doorbell
, q
->queue_id
);
131 } else if (q
->db_format
== LPFC_DB_RING_FORMAT
) {
132 bf_set(lpfc_wq_db_ring_fm_num_posted
, &doorbell
, 1);
133 bf_set(lpfc_wq_db_ring_fm_id
, &doorbell
, q
->queue_id
);
137 writel(doorbell
.word0
, q
->db_regaddr
);
143 * lpfc_sli4_wq_release - Updates internal hba index for WQ
144 * @q: The Work Queue to operate on.
145 * @index: The index to advance the hba index to.
147 * This routine will update the HBA index of a queue to reflect consumption of
148 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
149 * an entry the host calls this function to update the queue's internal
150 * pointers. This routine returns the number of entries that were consumed by
154 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
156 uint32_t released
= 0;
158 /* sanity check on queue memory */
162 if (q
->hba_index
== index
)
165 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
167 } while (q
->hba_index
!= index
);
172 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
173 * @q: The Mailbox Queue to operate on.
174 * @wqe: The Mailbox Queue Entry to put on the Work queue.
176 * This routine will copy the contents of @mqe to the next available entry on
177 * the @q. This function will then ring the Work Queue Doorbell to signal the
178 * HBA to start processing the Work Queue Entry. This function returns 0 if
179 * successful. If no entries are available on @q then this function will return
181 * The caller is expected to hold the hbalock when calling this routine.
184 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
186 struct lpfc_mqe
*temp_mqe
;
187 struct lpfc_register doorbell
;
190 /* sanity check on queue memory */
193 temp_mqe
= q
->qe
[q
->host_index
].mqe
;
195 /* If the host has not yet processed the next entry then we are done */
196 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
198 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
199 /* Save off the mailbox pointer for completion */
200 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
202 /* Update the host index before invoking device */
203 host_index
= q
->host_index
;
204 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
208 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
209 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
210 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
215 * lpfc_sli4_mq_release - Updates internal hba index for MQ
216 * @q: The Mailbox Queue to operate on.
218 * This routine will update the HBA index of a queue to reflect consumption of
219 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
220 * an entry the host calls this function to update the queue's internal
221 * pointers. This routine returns the number of entries that were consumed by
225 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
227 /* sanity check on queue memory */
231 /* Clear the mailbox pointer for completion */
232 q
->phba
->mbox
= NULL
;
233 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
238 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
239 * @q: The Event Queue to get the first valid EQE from
241 * This routine will get the first valid Event Queue Entry from @q, update
242 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
243 * the Queue (no more work to do), or the Queue is full of EQEs that have been
244 * processed, but not popped back to the HBA then this routine will return NULL.
246 static struct lpfc_eqe
*
247 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
249 struct lpfc_eqe
*eqe
;
252 /* sanity check on queue memory */
255 eqe
= q
->qe
[q
->hba_index
].eqe
;
257 /* If the next EQE is not valid then we are done */
258 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
260 /* If the host has not yet processed the next entry then we are done */
261 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
262 if (idx
== q
->host_index
)
270 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
271 * @q: The Event Queue to disable interrupts
275 lpfc_sli4_eq_clr_intr(struct lpfc_queue
*q
)
277 struct lpfc_register doorbell
;
280 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
281 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
282 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
283 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
284 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
285 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
289 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
290 * @q: The Event Queue that the host has completed processing for.
291 * @arm: Indicates whether the host wants to arms this CQ.
293 * This routine will mark all Event Queue Entries on @q, from the last
294 * known completed entry to the last entry that was processed, as completed
295 * by clearing the valid bit for each completion queue entry. Then it will
296 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
297 * The internal host index in the @q will be updated by this routine to indicate
298 * that the host has finished processing the entries. The @arm parameter
299 * indicates that the queue should be rearmed when ringing the doorbell.
301 * This function will return the number of EQEs that were popped.
304 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
306 uint32_t released
= 0;
307 struct lpfc_eqe
*temp_eqe
;
308 struct lpfc_register doorbell
;
310 /* sanity check on queue memory */
314 /* while there are valid entries */
315 while (q
->hba_index
!= q
->host_index
) {
316 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
317 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
319 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
321 if (unlikely(released
== 0 && !arm
))
324 /* ring doorbell for number popped */
327 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
328 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
330 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
331 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
332 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
333 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
334 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
335 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
336 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
337 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
338 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
343 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
344 * @q: The Completion Queue to get the first valid CQE from
346 * This routine will get the first valid Completion Queue Entry from @q, update
347 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
348 * the Queue (no more work to do), or the Queue is full of CQEs that have been
349 * processed, but not popped back to the HBA then this routine will return NULL.
351 static struct lpfc_cqe
*
352 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
354 struct lpfc_cqe
*cqe
;
357 /* sanity check on queue memory */
361 /* If the next CQE is not valid then we are done */
362 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
364 /* If the host has not yet processed the next entry then we are done */
365 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
366 if (idx
== q
->host_index
)
369 cqe
= q
->qe
[q
->hba_index
].cqe
;
375 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
376 * @q: The Completion Queue that the host has completed processing for.
377 * @arm: Indicates whether the host wants to arms this CQ.
379 * This routine will mark all Completion queue entries on @q, from the last
380 * known completed entry to the last entry that was processed, as completed
381 * by clearing the valid bit for each completion queue entry. Then it will
382 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
383 * The internal host index in the @q will be updated by this routine to indicate
384 * that the host has finished processing the entries. The @arm parameter
385 * indicates that the queue should be rearmed when ringing the doorbell.
387 * This function will return the number of CQEs that were released.
390 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
392 uint32_t released
= 0;
393 struct lpfc_cqe
*temp_qe
;
394 struct lpfc_register doorbell
;
396 /* sanity check on queue memory */
399 /* while there are valid entries */
400 while (q
->hba_index
!= q
->host_index
) {
401 temp_qe
= q
->qe
[q
->host_index
].cqe
;
402 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
404 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
406 if (unlikely(released
== 0 && !arm
))
409 /* ring doorbell for number popped */
412 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
413 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
414 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
415 bf_set(lpfc_eqcq_doorbell_cqid_hi
, &doorbell
,
416 (q
->queue_id
>> LPFC_CQID_HI_FIELD_SHIFT
));
417 bf_set(lpfc_eqcq_doorbell_cqid_lo
, &doorbell
, q
->queue_id
);
418 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
423 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
424 * @q: The Header Receive Queue to operate on.
425 * @wqe: The Receive Queue Entry to put on the Receive queue.
427 * This routine will copy the contents of @wqe to the next available entry on
428 * the @q. This function will then ring the Receive Queue Doorbell to signal the
429 * HBA to start processing the Receive Queue Entry. This function returns the
430 * index that the rqe was copied to if successful. If no entries are available
431 * on @q then this function will return -ENOMEM.
432 * The caller is expected to hold the hbalock when calling this routine.
435 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
436 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
438 struct lpfc_rqe
*temp_hrqe
;
439 struct lpfc_rqe
*temp_drqe
;
440 struct lpfc_register doorbell
;
443 /* sanity check on queue memory */
444 if (unlikely(!hq
) || unlikely(!dq
))
446 put_index
= hq
->host_index
;
447 temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
448 temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
450 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
452 if (hq
->host_index
!= dq
->host_index
)
454 /* If the host has not yet processed the next entry then we are done */
455 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
457 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
458 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
460 /* Update the host index to point to the next slot */
461 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
462 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
464 /* Ring The Header Receive Queue Doorbell */
465 if (!(hq
->host_index
% hq
->entry_repost
)) {
467 if (hq
->db_format
== LPFC_DB_RING_FORMAT
) {
468 bf_set(lpfc_rq_db_ring_fm_num_posted
, &doorbell
,
470 bf_set(lpfc_rq_db_ring_fm_id
, &doorbell
, hq
->queue_id
);
471 } else if (hq
->db_format
== LPFC_DB_LIST_FORMAT
) {
472 bf_set(lpfc_rq_db_list_fm_num_posted
, &doorbell
,
474 bf_set(lpfc_rq_db_list_fm_index
, &doorbell
,
476 bf_set(lpfc_rq_db_list_fm_id
, &doorbell
, hq
->queue_id
);
480 writel(doorbell
.word0
, hq
->db_regaddr
);
486 * lpfc_sli4_rq_release - Updates internal hba index for RQ
487 * @q: The Header Receive Queue to operate on.
489 * This routine will update the HBA index of a queue to reflect consumption of
490 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
491 * consumed an entry the host calls this function to update the queue's
492 * internal pointers. This routine returns the number of entries that were
493 * consumed by the HBA.
496 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
498 /* sanity check on queue memory */
499 if (unlikely(!hq
) || unlikely(!dq
))
502 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
504 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
505 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
510 * lpfc_cmd_iocb - Get next command iocb entry in the ring
511 * @phba: Pointer to HBA context object.
512 * @pring: Pointer to driver SLI ring object.
514 * This function returns pointer to next command iocb entry
515 * in the command ring. The caller must hold hbalock to prevent
516 * other threads consume the next command iocb.
517 * SLI-2/SLI-3 provide different sized iocbs.
519 static inline IOCB_t
*
520 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
522 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.cmdringaddr
) +
523 pring
->sli
.sli3
.cmdidx
* phba
->iocb_cmd_size
);
527 * lpfc_resp_iocb - Get next response iocb entry in the ring
528 * @phba: Pointer to HBA context object.
529 * @pring: Pointer to driver SLI ring object.
531 * This function returns pointer to next response iocb entry
532 * in the response ring. The caller must hold hbalock to make sure
533 * that no other thread consume the next response iocb.
534 * SLI-2/SLI-3 provide different sized iocbs.
536 static inline IOCB_t
*
537 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
539 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.rspringaddr
) +
540 pring
->sli
.sli3
.rspidx
* phba
->iocb_rsp_size
);
544 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
545 * @phba: Pointer to HBA context object.
547 * This function is called with hbalock held. This function
548 * allocates a new driver iocb object from the iocb pool. If the
549 * allocation is successful, it returns pointer to the newly
550 * allocated iocb object else it returns NULL.
553 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
555 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
556 struct lpfc_iocbq
* iocbq
= NULL
;
558 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
561 if (phba
->iocb_cnt
> phba
->iocb_max
)
562 phba
->iocb_max
= phba
->iocb_cnt
;
567 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
568 * @phba: Pointer to HBA context object.
569 * @xritag: XRI value.
571 * This function clears the sglq pointer from the array of acive
572 * sglq's. The xritag that is passed in is used to index into the
573 * array. Before the xritag can be used it needs to be adjusted
574 * by subtracting the xribase.
576 * Returns sglq ponter = success, NULL = Failure.
578 static struct lpfc_sglq
*
579 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
581 struct lpfc_sglq
*sglq
;
583 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
584 phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
] = NULL
;
589 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
590 * @phba: Pointer to HBA context object.
591 * @xritag: XRI value.
593 * This function returns the sglq pointer from the array of acive
594 * sglq's. The xritag that is passed in is used to index into the
595 * array. Before the xritag can be used it needs to be adjusted
596 * by subtracting the xribase.
598 * Returns sglq ponter = success, NULL = Failure.
601 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
603 struct lpfc_sglq
*sglq
;
605 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
610 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
611 * @phba: Pointer to HBA context object.
612 * @xritag: xri used in this exchange.
613 * @rrq: The RRQ to be cleared.
617 lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
619 struct lpfc_node_rrq
*rrq
)
621 struct lpfc_nodelist
*ndlp
= NULL
;
623 if ((rrq
->vport
) && NLP_CHK_NODE_ACT(rrq
->ndlp
))
624 ndlp
= lpfc_findnode_did(rrq
->vport
, rrq
->nlp_DID
);
626 /* The target DID could have been swapped (cable swap)
627 * we should use the ndlp from the findnode if it is
630 if ((!ndlp
) && rrq
->ndlp
)
636 if (test_and_clear_bit(xritag
, ndlp
->active_rrqs
.xri_bitmap
)) {
639 rrq
->rrq_stop_time
= 0;
642 mempool_free(rrq
, phba
->rrq_pool
);
646 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
647 * @phba: Pointer to HBA context object.
649 * This function is called with hbalock held. This function
650 * Checks if stop_time (ratov from setting rrq active) has
651 * been reached, if it has and the send_rrq flag is set then
652 * it will call lpfc_send_rrq. If the send_rrq flag is not set
653 * then it will just call the routine to clear the rrq and
654 * free the rrq resource.
655 * The timer is set to the next rrq that is going to expire before
656 * leaving the routine.
660 lpfc_handle_rrq_active(struct lpfc_hba
*phba
)
662 struct lpfc_node_rrq
*rrq
;
663 struct lpfc_node_rrq
*nextrrq
;
664 unsigned long next_time
;
665 unsigned long iflags
;
668 spin_lock_irqsave(&phba
->hbalock
, iflags
);
669 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
670 next_time
= jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
671 list_for_each_entry_safe(rrq
, nextrrq
,
672 &phba
->active_rrq_list
, list
) {
673 if (time_after(jiffies
, rrq
->rrq_stop_time
))
674 list_move(&rrq
->list
, &send_rrq
);
675 else if (time_before(rrq
->rrq_stop_time
, next_time
))
676 next_time
= rrq
->rrq_stop_time
;
678 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
679 if (!list_empty(&phba
->active_rrq_list
))
680 mod_timer(&phba
->rrq_tmr
, next_time
);
681 list_for_each_entry_safe(rrq
, nextrrq
, &send_rrq
, list
) {
682 list_del(&rrq
->list
);
684 /* this call will free the rrq */
685 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
686 else if (lpfc_send_rrq(phba
, rrq
)) {
687 /* if we send the rrq then the completion handler
688 * will clear the bit in the xribitmap.
690 lpfc_clr_rrq_active(phba
, rrq
->xritag
,
697 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
698 * @vport: Pointer to vport context object.
699 * @xri: The xri used in the exchange.
700 * @did: The targets DID for this exchange.
702 * returns NULL = rrq not found in the phba->active_rrq_list.
703 * rrq = rrq for this xri and target.
705 struct lpfc_node_rrq
*
706 lpfc_get_active_rrq(struct lpfc_vport
*vport
, uint16_t xri
, uint32_t did
)
708 struct lpfc_hba
*phba
= vport
->phba
;
709 struct lpfc_node_rrq
*rrq
;
710 struct lpfc_node_rrq
*nextrrq
;
711 unsigned long iflags
;
713 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
715 spin_lock_irqsave(&phba
->hbalock
, iflags
);
716 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
717 if (rrq
->vport
== vport
&& rrq
->xritag
== xri
&&
718 rrq
->nlp_DID
== did
){
719 list_del(&rrq
->list
);
720 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
724 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
729 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
730 * @vport: Pointer to vport context object.
731 * @ndlp: Pointer to the lpfc_node_list structure.
732 * If ndlp is NULL Remove all active RRQs for this vport from the
733 * phba->active_rrq_list and clear the rrq.
734 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
737 lpfc_cleanup_vports_rrqs(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
740 struct lpfc_hba
*phba
= vport
->phba
;
741 struct lpfc_node_rrq
*rrq
;
742 struct lpfc_node_rrq
*nextrrq
;
743 unsigned long iflags
;
746 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
749 lpfc_sli4_vport_delete_els_xri_aborted(vport
);
750 lpfc_sli4_vport_delete_fcp_xri_aborted(vport
);
752 spin_lock_irqsave(&phba
->hbalock
, iflags
);
753 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
)
754 if ((rrq
->vport
== vport
) && (!ndlp
|| rrq
->ndlp
== ndlp
))
755 list_move(&rrq
->list
, &rrq_list
);
756 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
758 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
759 list_del(&rrq
->list
);
760 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
765 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
766 * @phba: Pointer to HBA context object.
768 * Remove all rrqs from the phba->active_rrq_list and free them by
769 * calling __lpfc_clr_active_rrq
773 lpfc_cleanup_wt_rrqs(struct lpfc_hba
*phba
)
775 struct lpfc_node_rrq
*rrq
;
776 struct lpfc_node_rrq
*nextrrq
;
777 unsigned long next_time
;
778 unsigned long iflags
;
781 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
783 spin_lock_irqsave(&phba
->hbalock
, iflags
);
784 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
785 next_time
= jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
* 2));
786 list_splice_init(&phba
->active_rrq_list
, &rrq_list
);
787 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
789 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
790 list_del(&rrq
->list
);
791 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
793 if (!list_empty(&phba
->active_rrq_list
))
794 mod_timer(&phba
->rrq_tmr
, next_time
);
799 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
800 * @phba: Pointer to HBA context object.
801 * @ndlp: Targets nodelist pointer for this exchange.
802 * @xritag the xri in the bitmap to test.
804 * This function is called with hbalock held. This function
805 * returns 0 = rrq not active for this xri
806 * 1 = rrq is valid for this xri.
809 lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
814 if (test_bit(xritag
, ndlp
->active_rrqs
.xri_bitmap
))
821 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
822 * @phba: Pointer to HBA context object.
823 * @ndlp: nodelist pointer for this target.
824 * @xritag: xri used in this exchange.
825 * @rxid: Remote Exchange ID.
826 * @send_rrq: Flag used to determine if we should send rrq els cmd.
828 * This function takes the hbalock.
829 * The active bit is always set in the active rrq xri_bitmap even
830 * if there is no slot avaiable for the other rrq information.
832 * returns 0 rrq actived for this xri
833 * < 0 No memory or invalid ndlp.
836 lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
837 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
839 unsigned long iflags
;
840 struct lpfc_node_rrq
*rrq
;
846 if (!phba
->cfg_enable_rrq
)
849 spin_lock_irqsave(&phba
->hbalock
, iflags
);
850 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
851 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
856 * set the active bit even if there is no mem available.
858 if (NLP_CHK_FREE_REQ(ndlp
))
861 if (ndlp
->vport
&& (ndlp
->vport
->load_flag
& FC_UNLOADING
))
864 if (test_and_set_bit(xritag
, ndlp
->active_rrqs
.xri_bitmap
))
867 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
868 rrq
= mempool_alloc(phba
->rrq_pool
, GFP_KERNEL
);
870 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
871 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
872 " DID:0x%x Send:%d\n",
873 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
876 if (phba
->cfg_enable_rrq
== 1)
877 rrq
->send_rrq
= send_rrq
;
880 rrq
->xritag
= xritag
;
881 rrq
->rrq_stop_time
= jiffies
+
882 msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
884 rrq
->nlp_DID
= ndlp
->nlp_DID
;
885 rrq
->vport
= ndlp
->vport
;
887 spin_lock_irqsave(&phba
->hbalock
, iflags
);
888 empty
= list_empty(&phba
->active_rrq_list
);
889 list_add_tail(&rrq
->list
, &phba
->active_rrq_list
);
890 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
892 lpfc_worker_wake_up(phba
);
893 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
896 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
897 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
898 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
899 " DID:0x%x Send:%d\n",
900 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
905 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
906 * @phba: Pointer to HBA context object.
907 * @piocb: Pointer to the iocbq.
909 * This function is called with hbalock held. This function
910 * gets a new driver sglq object from the sglq list. If the
911 * list is not empty then it is successful, it returns pointer to the newly
912 * allocated sglq object else it returns NULL.
914 static struct lpfc_sglq
*
915 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
)
917 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
918 struct lpfc_sglq
*sglq
= NULL
;
919 struct lpfc_sglq
*start_sglq
= NULL
;
920 struct lpfc_scsi_buf
*lpfc_cmd
;
921 struct lpfc_nodelist
*ndlp
;
924 if (piocbq
->iocb_flag
& LPFC_IO_FCP
) {
925 lpfc_cmd
= (struct lpfc_scsi_buf
*) piocbq
->context1
;
926 ndlp
= lpfc_cmd
->rdata
->pnode
;
927 } else if ((piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) &&
928 !(piocbq
->iocb_flag
& LPFC_IO_LIBDFC
))
929 ndlp
= piocbq
->context_un
.ndlp
;
930 else if (piocbq
->iocb_flag
& LPFC_IO_LIBDFC
)
931 ndlp
= piocbq
->context_un
.ndlp
;
933 ndlp
= piocbq
->context1
;
935 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
940 if (lpfc_test_rrq_active(phba
, ndlp
, sglq
->sli4_lxritag
)) {
941 /* This xri has an rrq outstanding for this DID.
942 * put it back in the list and get another xri.
944 list_add_tail(&sglq
->list
, lpfc_sgl_list
);
946 list_remove_head(lpfc_sgl_list
, sglq
,
947 struct lpfc_sglq
, list
);
948 if (sglq
== start_sglq
) {
956 phba
->sli4_hba
.lpfc_sglq_active_list
[sglq
->sli4_lxritag
] = sglq
;
957 sglq
->state
= SGL_ALLOCATED
;
963 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
964 * @phba: Pointer to HBA context object.
966 * This function is called with no lock held. This function
967 * allocates a new driver iocb object from the iocb pool. If the
968 * allocation is successful, it returns pointer to the newly
969 * allocated iocb object else it returns NULL.
972 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
974 struct lpfc_iocbq
* iocbq
= NULL
;
975 unsigned long iflags
;
977 spin_lock_irqsave(&phba
->hbalock
, iflags
);
978 iocbq
= __lpfc_sli_get_iocbq(phba
);
979 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
984 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
985 * @phba: Pointer to HBA context object.
986 * @iocbq: Pointer to driver iocb object.
988 * This function is called with hbalock held to release driver
989 * iocb object to the iocb pool. The iotag in the iocb object
990 * does not change for each use of the iocb object. This function
991 * clears all other fields of the iocb object when it is freed.
992 * The sqlq structure that holds the xritag and phys and virtual
993 * mappings for the scatter gather list is retrieved from the
994 * active array of sglq. The get of the sglq pointer also clears
995 * the entry in the array. If the status of the IO indiactes that
996 * this IO was aborted then the sglq entry it put on the
997 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
998 * IO has good status or fails for any other reason then the sglq
999 * entry is added to the free list (lpfc_sgl_list).
1002 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1004 struct lpfc_sglq
*sglq
;
1005 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1006 unsigned long iflag
= 0;
1007 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1009 if (iocbq
->sli4_xritag
== NO_XRI
)
1012 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_lxritag
);
1016 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
1017 (sglq
->state
!= SGL_XRI_ABORTED
)) {
1018 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
1020 list_add(&sglq
->list
,
1021 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
1022 spin_unlock_irqrestore(
1023 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
1025 sglq
->state
= SGL_FREED
;
1027 list_add_tail(&sglq
->list
,
1028 &phba
->sli4_hba
.lpfc_sgl_list
);
1030 /* Check if TXQ queue needs to be serviced */
1031 if (!list_empty(&pring
->txq
))
1032 lpfc_worker_wake_up(phba
);
1038 * Clean all volatile data fields, preserve iotag and node struct.
1040 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1041 iocbq
->sli4_lxritag
= NO_XRI
;
1042 iocbq
->sli4_xritag
= NO_XRI
;
1043 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1048 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1049 * @phba: Pointer to HBA context object.
1050 * @iocbq: Pointer to driver iocb object.
1052 * This function is called with hbalock held to release driver
1053 * iocb object to the iocb pool. The iotag in the iocb object
1054 * does not change for each use of the iocb object. This function
1055 * clears all other fields of the iocb object when it is freed.
1058 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1060 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1064 * Clean all volatile data fields, preserve iotag and node struct.
1066 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1067 iocbq
->sli4_xritag
= NO_XRI
;
1068 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1072 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1073 * @phba: Pointer to HBA context object.
1074 * @iocbq: Pointer to driver iocb object.
1076 * This function is called with hbalock held to release driver
1077 * iocb object to the iocb pool. The iotag in the iocb object
1078 * does not change for each use of the iocb object. This function
1079 * clears all other fields of the iocb object when it is freed.
1082 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1084 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
1089 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1090 * @phba: Pointer to HBA context object.
1091 * @iocbq: Pointer to driver iocb object.
1093 * This function is called with no lock held to release the iocb to
1097 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1099 unsigned long iflags
;
1102 * Clean all volatile data fields, preserve iotag and node struct.
1104 spin_lock_irqsave(&phba
->hbalock
, iflags
);
1105 __lpfc_sli_release_iocbq(phba
, iocbq
);
1106 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
1110 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1111 * @phba: Pointer to HBA context object.
1112 * @iocblist: List of IOCBs.
1113 * @ulpstatus: ULP status in IOCB command field.
1114 * @ulpWord4: ULP word-4 in IOCB command field.
1116 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1117 * on the list by invoking the complete callback function associated with the
1118 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1122 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
1123 uint32_t ulpstatus
, uint32_t ulpWord4
)
1125 struct lpfc_iocbq
*piocb
;
1127 while (!list_empty(iocblist
)) {
1128 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
1129 if (!piocb
->iocb_cmpl
)
1130 lpfc_sli_release_iocbq(phba
, piocb
);
1132 piocb
->iocb
.ulpStatus
= ulpstatus
;
1133 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
1134 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
1141 * lpfc_sli_iocb_cmd_type - Get the iocb type
1142 * @iocb_cmnd: iocb command code.
1144 * This function is called by ring event handler function to get the iocb type.
1145 * This function translates the iocb command to an iocb command type used to
1146 * decide the final disposition of each completed IOCB.
1147 * The function returns
1148 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1149 * LPFC_SOL_IOCB if it is a solicited iocb completion
1150 * LPFC_ABORT_IOCB if it is an abort iocb
1151 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1153 * The caller is not required to hold any lock.
1155 static lpfc_iocb_type
1156 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
1158 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
1160 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
1163 switch (iocb_cmnd
) {
1164 case CMD_XMIT_SEQUENCE_CR
:
1165 case CMD_XMIT_SEQUENCE_CX
:
1166 case CMD_XMIT_BCAST_CN
:
1167 case CMD_XMIT_BCAST_CX
:
1168 case CMD_ELS_REQUEST_CR
:
1169 case CMD_ELS_REQUEST_CX
:
1170 case CMD_CREATE_XRI_CR
:
1171 case CMD_CREATE_XRI_CX
:
1172 case CMD_GET_RPI_CN
:
1173 case CMD_XMIT_ELS_RSP_CX
:
1174 case CMD_GET_RPI_CR
:
1175 case CMD_FCP_IWRITE_CR
:
1176 case CMD_FCP_IWRITE_CX
:
1177 case CMD_FCP_IREAD_CR
:
1178 case CMD_FCP_IREAD_CX
:
1179 case CMD_FCP_ICMND_CR
:
1180 case CMD_FCP_ICMND_CX
:
1181 case CMD_FCP_TSEND_CX
:
1182 case CMD_FCP_TRSP_CX
:
1183 case CMD_FCP_TRECEIVE_CX
:
1184 case CMD_FCP_AUTO_TRSP_CX
:
1185 case CMD_ADAPTER_MSG
:
1186 case CMD_ADAPTER_DUMP
:
1187 case CMD_XMIT_SEQUENCE64_CR
:
1188 case CMD_XMIT_SEQUENCE64_CX
:
1189 case CMD_XMIT_BCAST64_CN
:
1190 case CMD_XMIT_BCAST64_CX
:
1191 case CMD_ELS_REQUEST64_CR
:
1192 case CMD_ELS_REQUEST64_CX
:
1193 case CMD_FCP_IWRITE64_CR
:
1194 case CMD_FCP_IWRITE64_CX
:
1195 case CMD_FCP_IREAD64_CR
:
1196 case CMD_FCP_IREAD64_CX
:
1197 case CMD_FCP_ICMND64_CR
:
1198 case CMD_FCP_ICMND64_CX
:
1199 case CMD_FCP_TSEND64_CX
:
1200 case CMD_FCP_TRSP64_CX
:
1201 case CMD_FCP_TRECEIVE64_CX
:
1202 case CMD_GEN_REQUEST64_CR
:
1203 case CMD_GEN_REQUEST64_CX
:
1204 case CMD_XMIT_ELS_RSP64_CX
:
1205 case DSSCMD_IWRITE64_CR
:
1206 case DSSCMD_IWRITE64_CX
:
1207 case DSSCMD_IREAD64_CR
:
1208 case DSSCMD_IREAD64_CX
:
1209 type
= LPFC_SOL_IOCB
;
1211 case CMD_ABORT_XRI_CN
:
1212 case CMD_ABORT_XRI_CX
:
1213 case CMD_CLOSE_XRI_CN
:
1214 case CMD_CLOSE_XRI_CX
:
1215 case CMD_XRI_ABORTED_CX
:
1216 case CMD_ABORT_MXRI64_CN
:
1217 case CMD_XMIT_BLS_RSP64_CX
:
1218 type
= LPFC_ABORT_IOCB
;
1220 case CMD_RCV_SEQUENCE_CX
:
1221 case CMD_RCV_ELS_REQ_CX
:
1222 case CMD_RCV_SEQUENCE64_CX
:
1223 case CMD_RCV_ELS_REQ64_CX
:
1224 case CMD_ASYNC_STATUS
:
1225 case CMD_IOCB_RCV_SEQ64_CX
:
1226 case CMD_IOCB_RCV_ELS64_CX
:
1227 case CMD_IOCB_RCV_CONT64_CX
:
1228 case CMD_IOCB_RET_XRI64_CX
:
1229 type
= LPFC_UNSOL_IOCB
;
1231 case CMD_IOCB_XMIT_MSEQ64_CR
:
1232 case CMD_IOCB_XMIT_MSEQ64_CX
:
1233 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
1234 case CMD_IOCB_RCV_ELS_LIST64_CX
:
1235 case CMD_IOCB_CLOSE_EXTENDED_CN
:
1236 case CMD_IOCB_ABORT_EXTENDED_CN
:
1237 case CMD_IOCB_RET_HBQE64_CN
:
1238 case CMD_IOCB_FCP_IBIDIR64_CR
:
1239 case CMD_IOCB_FCP_IBIDIR64_CX
:
1240 case CMD_IOCB_FCP_ITASKMGT64_CX
:
1241 case CMD_IOCB_LOGENTRY_CN
:
1242 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
1243 printk("%s - Unhandled SLI-3 Command x%x\n",
1244 __func__
, iocb_cmnd
);
1245 type
= LPFC_UNKNOWN_IOCB
;
1248 type
= LPFC_UNKNOWN_IOCB
;
1256 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1257 * @phba: Pointer to HBA context object.
1259 * This function is called from SLI initialization code
1260 * to configure every ring of the HBA's SLI interface. The
1261 * caller is not required to hold any lock. This function issues
1262 * a config_ring mailbox command for each ring.
1263 * This function returns zero if successful else returns a negative
1267 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
1269 struct lpfc_sli
*psli
= &phba
->sli
;
1274 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1278 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
1279 for (i
= 0; i
< psli
->num_rings
; i
++) {
1280 lpfc_config_ring(phba
, i
, pmb
);
1281 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
1282 if (rc
!= MBX_SUCCESS
) {
1283 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1284 "0446 Adapter failed to init (%d), "
1285 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1287 rc
, pmbox
->mbxCommand
,
1288 pmbox
->mbxStatus
, i
);
1289 phba
->link_state
= LPFC_HBA_ERROR
;
1294 mempool_free(pmb
, phba
->mbox_mem_pool
);
1299 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1300 * @phba: Pointer to HBA context object.
1301 * @pring: Pointer to driver SLI ring object.
1302 * @piocb: Pointer to the driver iocb object.
1304 * This function is called with hbalock held. The function adds the
1305 * new iocb to txcmplq of the given ring. This function always returns
1306 * 0. If this function is called for ELS ring, this function checks if
1307 * there is a vport associated with the ELS command. This function also
1308 * starts els_tmofunc timer if this is an ELS command.
1311 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1312 struct lpfc_iocbq
*piocb
)
1314 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
1315 piocb
->iocb_flag
|= LPFC_IO_ON_TXCMPLQ
;
1317 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
1318 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
1319 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
1323 mod_timer(&piocb
->vport
->els_tmofunc
,
1325 msecs_to_jiffies(1000 * (phba
->fc_ratov
<< 1)));
1333 * lpfc_sli_ringtx_get - Get first element of the txq
1334 * @phba: Pointer to HBA context object.
1335 * @pring: Pointer to driver SLI ring object.
1337 * This function is called with hbalock held to get next
1338 * iocb in txq of the given ring. If there is any iocb in
1339 * the txq, the function returns first iocb in the list after
1340 * removing the iocb from the list, else it returns NULL.
1343 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1345 struct lpfc_iocbq
*cmd_iocb
;
1347 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
1352 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1353 * @phba: Pointer to HBA context object.
1354 * @pring: Pointer to driver SLI ring object.
1356 * This function is called with hbalock held and the caller must post the
1357 * iocb without releasing the lock. If the caller releases the lock,
1358 * iocb slot returned by the function is not guaranteed to be available.
1359 * The function returns pointer to the next available iocb slot if there
1360 * is available slot in the ring, else it returns NULL.
1361 * If the get index of the ring is ahead of the put index, the function
1362 * will post an error attention event to the worker thread to take the
1363 * HBA to offline state.
1366 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1368 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
1369 uint32_t max_cmd_idx
= pring
->sli
.sli3
.numCiocb
;
1370 if ((pring
->sli
.sli3
.next_cmdidx
== pring
->sli
.sli3
.cmdidx
) &&
1371 (++pring
->sli
.sli3
.next_cmdidx
>= max_cmd_idx
))
1372 pring
->sli
.sli3
.next_cmdidx
= 0;
1374 if (unlikely(pring
->sli
.sli3
.local_getidx
==
1375 pring
->sli
.sli3
.next_cmdidx
)) {
1377 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
1379 if (unlikely(pring
->sli
.sli3
.local_getidx
>= max_cmd_idx
)) {
1380 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
1381 "0315 Ring %d issue: portCmdGet %d "
1382 "is bigger than cmd ring %d\n",
1384 pring
->sli
.sli3
.local_getidx
,
1387 phba
->link_state
= LPFC_HBA_ERROR
;
1389 * All error attention handlers are posted to
1392 phba
->work_ha
|= HA_ERATT
;
1393 phba
->work_hs
= HS_FFER3
;
1395 lpfc_worker_wake_up(phba
);
1400 if (pring
->sli
.sli3
.local_getidx
== pring
->sli
.sli3
.next_cmdidx
)
1404 return lpfc_cmd_iocb(phba
, pring
);
1408 * lpfc_sli_next_iotag - Get an iotag for the iocb
1409 * @phba: Pointer to HBA context object.
1410 * @iocbq: Pointer to driver iocb object.
1412 * This function gets an iotag for the iocb. If there is no unused iotag and
1413 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1414 * array and assigns a new iotag.
1415 * The function returns the allocated iotag if successful, else returns zero.
1416 * Zero is not a valid iotag.
1417 * The caller is not required to hold any lock.
1420 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1422 struct lpfc_iocbq
**new_arr
;
1423 struct lpfc_iocbq
**old_arr
;
1425 struct lpfc_sli
*psli
= &phba
->sli
;
1428 spin_lock_irq(&phba
->hbalock
);
1429 iotag
= psli
->last_iotag
;
1430 if(++iotag
< psli
->iocbq_lookup_len
) {
1431 psli
->last_iotag
= iotag
;
1432 psli
->iocbq_lookup
[iotag
] = iocbq
;
1433 spin_unlock_irq(&phba
->hbalock
);
1434 iocbq
->iotag
= iotag
;
1436 } else if (psli
->iocbq_lookup_len
< (0xffff
1437 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1438 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1439 spin_unlock_irq(&phba
->hbalock
);
1440 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1443 spin_lock_irq(&phba
->hbalock
);
1444 old_arr
= psli
->iocbq_lookup
;
1445 if (new_len
<= psli
->iocbq_lookup_len
) {
1446 /* highly unprobable case */
1448 iotag
= psli
->last_iotag
;
1449 if(++iotag
< psli
->iocbq_lookup_len
) {
1450 psli
->last_iotag
= iotag
;
1451 psli
->iocbq_lookup
[iotag
] = iocbq
;
1452 spin_unlock_irq(&phba
->hbalock
);
1453 iocbq
->iotag
= iotag
;
1456 spin_unlock_irq(&phba
->hbalock
);
1459 if (psli
->iocbq_lookup
)
1460 memcpy(new_arr
, old_arr
,
1461 ((psli
->last_iotag
+ 1) *
1462 sizeof (struct lpfc_iocbq
*)));
1463 psli
->iocbq_lookup
= new_arr
;
1464 psli
->iocbq_lookup_len
= new_len
;
1465 psli
->last_iotag
= iotag
;
1466 psli
->iocbq_lookup
[iotag
] = iocbq
;
1467 spin_unlock_irq(&phba
->hbalock
);
1468 iocbq
->iotag
= iotag
;
1473 spin_unlock_irq(&phba
->hbalock
);
1475 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1476 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1483 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1484 * @phba: Pointer to HBA context object.
1485 * @pring: Pointer to driver SLI ring object.
1486 * @iocb: Pointer to iocb slot in the ring.
1487 * @nextiocb: Pointer to driver iocb object which need to be
1488 * posted to firmware.
1490 * This function is called with hbalock held to post a new iocb to
1491 * the firmware. This function copies the new iocb to ring iocb slot and
1492 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1493 * a completion call back for this iocb else the function will free the
1497 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1498 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1503 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1506 if (pring
->ringno
== LPFC_ELS_RING
) {
1507 lpfc_debugfs_slow_ring_trc(phba
,
1508 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1509 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1510 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1511 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1515 * Issue iocb command to adapter
1517 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1519 pring
->stats
.iocb_cmd
++;
1522 * If there is no completion routine to call, we can release the
1523 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1524 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1526 if (nextiocb
->iocb_cmpl
)
1527 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1529 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1532 * Let the HBA know what IOCB slot will be the next one the
1533 * driver will put a command into.
1535 pring
->sli
.sli3
.cmdidx
= pring
->sli
.sli3
.next_cmdidx
;
1536 writel(pring
->sli
.sli3
.cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1540 * lpfc_sli_update_full_ring - Update the chip attention register
1541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1544 * The caller is not required to hold any lock for calling this function.
1545 * This function updates the chip attention bits for the ring to inform firmware
1546 * that there are pending work to be done for this ring and requests an
1547 * interrupt when there is space available in the ring. This function is
1548 * called when the driver is unable to post more iocbs to the ring due
1549 * to unavailability of space in the ring.
1552 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1554 int ringno
= pring
->ringno
;
1556 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1561 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1562 * The HBA will tell us when an IOCB entry is available.
1564 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1565 readl(phba
->CAregaddr
); /* flush */
1567 pring
->stats
.iocb_cmd_full
++;
1571 * lpfc_sli_update_ring - Update chip attention register
1572 * @phba: Pointer to HBA context object.
1573 * @pring: Pointer to driver SLI ring object.
1575 * This function updates the chip attention register bit for the
1576 * given ring to inform HBA that there is more work to be done
1577 * in this ring. The caller is not required to hold any lock.
1580 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1582 int ringno
= pring
->ringno
;
1585 * Tell the HBA that there is work to do in this ring.
1587 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1589 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1590 readl(phba
->CAregaddr
); /* flush */
1595 * lpfc_sli_resume_iocb - Process iocbs in the txq
1596 * @phba: Pointer to HBA context object.
1597 * @pring: Pointer to driver SLI ring object.
1599 * This function is called with hbalock held to post pending iocbs
1600 * in the txq to the firmware. This function is called when driver
1601 * detects space available in the ring.
1604 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1607 struct lpfc_iocbq
*nextiocb
;
1611 * (a) there is anything on the txq to send
1613 * (c) link attention events can be processed (fcp ring only)
1614 * (d) IOCB processing is not blocked by the outstanding mbox command.
1617 if (lpfc_is_link_up(phba
) &&
1618 (!list_empty(&pring
->txq
)) &&
1619 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1620 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1622 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1623 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1624 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1627 lpfc_sli_update_ring(phba
, pring
);
1629 lpfc_sli_update_full_ring(phba
, pring
);
1636 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1637 * @phba: Pointer to HBA context object.
1638 * @hbqno: HBQ number.
1640 * This function is called with hbalock held to get the next
1641 * available slot for the given HBQ. If there is free slot
1642 * available for the HBQ it will return pointer to the next available
1643 * HBQ entry else it will return NULL.
1645 static struct lpfc_hbq_entry
*
1646 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1648 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1650 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1651 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1652 hbqp
->next_hbqPutIdx
= 0;
1654 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1655 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1656 uint32_t getidx
= le32_to_cpu(raw_index
);
1658 hbqp
->local_hbqGetIdx
= getidx
;
1660 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1661 lpfc_printf_log(phba
, KERN_ERR
,
1662 LOG_SLI
| LOG_VPORT
,
1663 "1802 HBQ %d: local_hbqGetIdx "
1664 "%u is > than hbqp->entry_count %u\n",
1665 hbqno
, hbqp
->local_hbqGetIdx
,
1668 phba
->link_state
= LPFC_HBA_ERROR
;
1672 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1676 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1681 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1682 * @phba: Pointer to HBA context object.
1684 * This function is called with no lock held to free all the
1685 * hbq buffers while uninitializing the SLI interface. It also
1686 * frees the HBQ buffers returned by the firmware but not yet
1687 * processed by the upper layers.
1690 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1692 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1693 struct hbq_dmabuf
*hbq_buf
;
1694 unsigned long flags
;
1698 hbq_count
= lpfc_sli_hbq_count();
1699 /* Return all memory used by all HBQs */
1700 spin_lock_irqsave(&phba
->hbalock
, flags
);
1701 for (i
= 0; i
< hbq_count
; ++i
) {
1702 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1703 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1704 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1705 list_del(&hbq_buf
->dbuf
.list
);
1706 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1708 phba
->hbqs
[i
].buffer_count
= 0;
1710 /* Return all HBQ buffer that are in-fly */
1711 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1713 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1714 list_del(&hbq_buf
->dbuf
.list
);
1715 if (hbq_buf
->tag
== -1) {
1716 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1719 hbqno
= hbq_buf
->tag
>> 16;
1720 if (hbqno
>= LPFC_MAX_HBQS
)
1721 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1724 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1729 /* Mark the HBQs not in use */
1730 phba
->hbq_in_use
= 0;
1731 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1735 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1736 * @phba: Pointer to HBA context object.
1737 * @hbqno: HBQ number.
1738 * @hbq_buf: Pointer to HBQ buffer.
1740 * This function is called with the hbalock held to post a
1741 * hbq buffer to the firmware. If the function finds an empty
1742 * slot in the HBQ, it will post the buffer. The function will return
1743 * pointer to the hbq entry if it successfully post the buffer
1744 * else it will return NULL.
1747 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1748 struct hbq_dmabuf
*hbq_buf
)
1750 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1754 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1755 * @phba: Pointer to HBA context object.
1756 * @hbqno: HBQ number.
1757 * @hbq_buf: Pointer to HBQ buffer.
1759 * This function is called with the hbalock held to post a hbq buffer to the
1760 * firmware. If the function finds an empty slot in the HBQ, it will post the
1761 * buffer and place it on the hbq_buffer_list. The function will return zero if
1762 * it successfully post the buffer else it will return an error.
1765 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1766 struct hbq_dmabuf
*hbq_buf
)
1768 struct lpfc_hbq_entry
*hbqe
;
1769 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1771 /* Get next HBQ entry slot to use */
1772 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1774 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1776 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1777 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1778 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1779 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1780 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1781 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1783 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1784 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1786 readl(phba
->hbq_put
+ hbqno
);
1787 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1794 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1795 * @phba: Pointer to HBA context object.
1796 * @hbqno: HBQ number.
1797 * @hbq_buf: Pointer to HBQ buffer.
1799 * This function is called with the hbalock held to post an RQE to the SLI4
1800 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1801 * the hbq_buffer_list and return zero, otherwise it will return an error.
1804 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1805 struct hbq_dmabuf
*hbq_buf
)
1808 struct lpfc_rqe hrqe
;
1809 struct lpfc_rqe drqe
;
1811 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1812 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1813 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1814 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1815 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1820 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1824 /* HBQ for ELS and CT traffic. */
1825 static struct lpfc_hbq_init lpfc_els_hbq
= {
1830 .ring_mask
= (1 << LPFC_ELS_RING
),
1836 /* HBQ for the extra ring if needed */
1837 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1842 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1849 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1855 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1856 * @phba: Pointer to HBA context object.
1857 * @hbqno: HBQ number.
1858 * @count: Number of HBQ buffers to be posted.
1860 * This function is called with no lock held to post more hbq buffers to the
1861 * given HBQ. The function returns the number of HBQ buffers successfully
1865 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1867 uint32_t i
, posted
= 0;
1868 unsigned long flags
;
1869 struct hbq_dmabuf
*hbq_buffer
;
1870 LIST_HEAD(hbq_buf_list
);
1871 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1874 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1875 lpfc_hbq_defs
[hbqno
]->entry_count
)
1876 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1877 phba
->hbqs
[hbqno
].buffer_count
;
1880 /* Allocate HBQ entries */
1881 for (i
= 0; i
< count
; i
++) {
1882 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1885 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1887 /* Check whether HBQ is still in use */
1888 spin_lock_irqsave(&phba
->hbalock
, flags
);
1889 if (!phba
->hbq_in_use
)
1891 while (!list_empty(&hbq_buf_list
)) {
1892 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1894 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1896 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1897 phba
->hbqs
[hbqno
].buffer_count
++;
1900 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1902 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1905 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1906 while (!list_empty(&hbq_buf_list
)) {
1907 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1909 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1915 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1916 * @phba: Pointer to HBA context object.
1919 * This function posts more buffers to the HBQ. This function
1920 * is called with no lock held. The function returns the number of HBQ entries
1921 * successfully allocated.
1924 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1926 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1929 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1930 lpfc_hbq_defs
[qno
]->add_count
);
1934 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1935 * @phba: Pointer to HBA context object.
1936 * @qno: HBQ queue number.
1938 * This function is called from SLI initialization code path with
1939 * no lock held to post initial HBQ buffers to firmware. The
1940 * function returns the number of HBQ entries successfully allocated.
1943 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1945 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1946 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1947 lpfc_hbq_defs
[qno
]->entry_count
);
1949 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1950 lpfc_hbq_defs
[qno
]->init_count
);
1954 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1955 * @phba: Pointer to HBA context object.
1956 * @hbqno: HBQ number.
1958 * This function removes the first hbq buffer on an hbq list and returns a
1959 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1961 static struct hbq_dmabuf
*
1962 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1964 struct lpfc_dmabuf
*d_buf
;
1966 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1969 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1973 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1974 * @phba: Pointer to HBA context object.
1975 * @tag: Tag of the hbq buffer.
1977 * This function is called with hbalock held. This function searches
1978 * for the hbq buffer associated with the given tag in the hbq buffer
1979 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1982 static struct hbq_dmabuf
*
1983 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
1985 struct lpfc_dmabuf
*d_buf
;
1986 struct hbq_dmabuf
*hbq_buf
;
1990 if (hbqno
>= LPFC_MAX_HBQS
)
1993 spin_lock_irq(&phba
->hbalock
);
1994 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
1995 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1996 if (hbq_buf
->tag
== tag
) {
1997 spin_unlock_irq(&phba
->hbalock
);
2001 spin_unlock_irq(&phba
->hbalock
);
2002 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
2003 "1803 Bad hbq tag. Data: x%x x%x\n",
2004 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
2009 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2010 * @phba: Pointer to HBA context object.
2011 * @hbq_buffer: Pointer to HBQ buffer.
2013 * This function is called with hbalock. This function gives back
2014 * the hbq buffer to firmware. If the HBQ does not have space to
2015 * post the buffer, it will free the buffer.
2018 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
2023 hbqno
= hbq_buffer
->tag
>> 16;
2024 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
2025 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
2030 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2031 * @mbxCommand: mailbox command code.
2033 * This function is called by the mailbox event handler function to verify
2034 * that the completed mailbox command is a legitimate mailbox command. If the
2035 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2036 * and the mailbox event handler will take the HBA offline.
2039 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
2043 switch (mbxCommand
) {
2047 case MBX_WRITE_VPARMS
:
2048 case MBX_RUN_BIU_DIAG
:
2051 case MBX_CONFIG_LINK
:
2052 case MBX_CONFIG_RING
:
2053 case MBX_RESET_RING
:
2054 case MBX_READ_CONFIG
:
2055 case MBX_READ_RCONFIG
:
2056 case MBX_READ_SPARM
:
2057 case MBX_READ_STATUS
:
2061 case MBX_READ_LNK_STAT
:
2063 case MBX_UNREG_LOGIN
:
2065 case MBX_DUMP_MEMORY
:
2066 case MBX_DUMP_CONTEXT
:
2069 case MBX_UPDATE_CFG
:
2071 case MBX_DEL_LD_ENTRY
:
2072 case MBX_RUN_PROGRAM
:
2074 case MBX_SET_VARIABLE
:
2075 case MBX_UNREG_D_ID
:
2076 case MBX_KILL_BOARD
:
2077 case MBX_CONFIG_FARP
:
2080 case MBX_RUN_BIU_DIAG64
:
2081 case MBX_CONFIG_PORT
:
2082 case MBX_READ_SPARM64
:
2083 case MBX_READ_RPI64
:
2084 case MBX_REG_LOGIN64
:
2085 case MBX_READ_TOPOLOGY
:
2088 case MBX_LOAD_EXP_ROM
:
2089 case MBX_ASYNCEVT_ENABLE
:
2093 case MBX_PORT_CAPABILITIES
:
2094 case MBX_PORT_IOV_CONTROL
:
2095 case MBX_SLI4_CONFIG
:
2096 case MBX_SLI4_REQ_FTRS
:
2098 case MBX_UNREG_FCFI
:
2103 case MBX_RESUME_RPI
:
2104 case MBX_READ_EVENT_LOG_STATUS
:
2105 case MBX_READ_EVENT_LOG
:
2106 case MBX_SECURITY_MGMT
:
2108 case MBX_ACCESS_VDATA
:
2119 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2120 * @phba: Pointer to HBA context object.
2121 * @pmboxq: Pointer to mailbox command.
2123 * This is completion handler function for mailbox commands issued from
2124 * lpfc_sli_issue_mbox_wait function. This function is called by the
2125 * mailbox event handler function with no lock held. This function
2126 * will wake up thread waiting on the wait queue pointed by context1
2130 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
2132 wait_queue_head_t
*pdone_q
;
2133 unsigned long drvr_flag
;
2136 * If pdone_q is empty, the driver thread gave up waiting and
2137 * continued running.
2139 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
2140 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
2141 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
2143 wake_up_interruptible(pdone_q
);
2144 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
2150 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2151 * @phba: Pointer to HBA context object.
2152 * @pmb: Pointer to mailbox object.
2154 * This function is the default mailbox completion handler. It
2155 * frees the memory resources associated with the completed mailbox
2156 * command. If the completed command is a REG_LOGIN mailbox command,
2157 * this function will issue a UREG_LOGIN to re-claim the RPI.
2160 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2162 struct lpfc_vport
*vport
= pmb
->vport
;
2163 struct lpfc_dmabuf
*mp
;
2164 struct lpfc_nodelist
*ndlp
;
2165 struct Scsi_Host
*shost
;
2169 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2172 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2177 * If a REG_LOGIN succeeded after node is destroyed or node
2178 * is in re-discovery driver need to cleanup the RPI.
2180 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2181 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
2182 !pmb
->u
.mb
.mbxStatus
) {
2183 rpi
= pmb
->u
.mb
.un
.varWords
[0];
2184 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
;
2185 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
2186 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2187 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2188 if (rc
!= MBX_NOT_FINISHED
)
2192 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
2193 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2194 !pmb
->u
.mb
.mbxStatus
) {
2195 shost
= lpfc_shost_from_vport(vport
);
2196 spin_lock_irq(shost
->host_lock
);
2197 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2198 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2199 spin_unlock_irq(shost
->host_lock
);
2202 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
2203 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
2205 pmb
->context2
= NULL
;
2208 /* Check security permission status on INIT_LINK mailbox command */
2209 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
2210 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
2211 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2212 "2860 SLI authentication is required "
2213 "for INIT_LINK but has not done yet\n");
2215 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
2216 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
2218 mempool_free(pmb
, phba
->mbox_mem_pool
);
2222 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2223 * @phba: Pointer to HBA context object.
2225 * This function is called with no lock held. This function processes all
2226 * the completed mailbox commands and gives it to upper layers. The interrupt
2227 * service routine processes mailbox completion interrupt and adds completed
2228 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2229 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2230 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2231 * function returns the mailbox commands to the upper layer by calling the
2232 * completion handler function of each mailbox.
2235 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
2242 phba
->sli
.slistat
.mbox_event
++;
2244 /* Get all completed mailboxe buffers into the cmplq */
2245 spin_lock_irq(&phba
->hbalock
);
2246 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
2247 spin_unlock_irq(&phba
->hbalock
);
2249 /* Get a Mailbox buffer to setup mailbox commands for callback */
2251 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
2257 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
2259 lpfc_debugfs_disc_trc(pmb
->vport
,
2260 LPFC_DISC_TRC_MBOX_VPORT
,
2261 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2262 (uint32_t)pmbox
->mbxCommand
,
2263 pmbox
->un
.varWords
[0],
2264 pmbox
->un
.varWords
[1]);
2267 lpfc_debugfs_disc_trc(phba
->pport
,
2269 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2270 (uint32_t)pmbox
->mbxCommand
,
2271 pmbox
->un
.varWords
[0],
2272 pmbox
->un
.varWords
[1]);
2277 * It is a fatal error if unknown mbox command completion.
2279 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
2281 /* Unknown mailbox command compl */
2282 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2283 "(%d):0323 Unknown Mailbox command "
2284 "x%x (x%x/x%x) Cmpl\n",
2285 pmb
->vport
? pmb
->vport
->vpi
: 0,
2287 lpfc_sli_config_mbox_subsys_get(phba
,
2289 lpfc_sli_config_mbox_opcode_get(phba
,
2291 phba
->link_state
= LPFC_HBA_ERROR
;
2292 phba
->work_hs
= HS_FFER3
;
2293 lpfc_handle_eratt(phba
);
2297 if (pmbox
->mbxStatus
) {
2298 phba
->sli
.slistat
.mbox_stat_err
++;
2299 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
2300 /* Mbox cmd cmpl error - RETRYing */
2301 lpfc_printf_log(phba
, KERN_INFO
,
2303 "(%d):0305 Mbox cmd cmpl "
2304 "error - RETRYing Data: x%x "
2305 "(x%x/x%x) x%x x%x x%x\n",
2306 pmb
->vport
? pmb
->vport
->vpi
: 0,
2308 lpfc_sli_config_mbox_subsys_get(phba
,
2310 lpfc_sli_config_mbox_opcode_get(phba
,
2313 pmbox
->un
.varWords
[0],
2314 pmb
->vport
->port_state
);
2315 pmbox
->mbxStatus
= 0;
2316 pmbox
->mbxOwner
= OWN_HOST
;
2317 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2318 if (rc
!= MBX_NOT_FINISHED
)
2323 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2324 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
2325 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2326 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2328 pmb
->vport
? pmb
->vport
->vpi
: 0,
2330 lpfc_sli_config_mbox_subsys_get(phba
, pmb
),
2331 lpfc_sli_config_mbox_opcode_get(phba
, pmb
),
2333 *((uint32_t *) pmbox
),
2334 pmbox
->un
.varWords
[0],
2335 pmbox
->un
.varWords
[1],
2336 pmbox
->un
.varWords
[2],
2337 pmbox
->un
.varWords
[3],
2338 pmbox
->un
.varWords
[4],
2339 pmbox
->un
.varWords
[5],
2340 pmbox
->un
.varWords
[6],
2341 pmbox
->un
.varWords
[7],
2342 pmbox
->un
.varWords
[8],
2343 pmbox
->un
.varWords
[9],
2344 pmbox
->un
.varWords
[10]);
2347 pmb
->mbox_cmpl(phba
,pmb
);
2353 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2354 * @phba: Pointer to HBA context object.
2355 * @pring: Pointer to driver SLI ring object.
2358 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2359 * is set in the tag the buffer is posted for a particular exchange,
2360 * the function will return the buffer without replacing the buffer.
2361 * If the buffer is for unsolicited ELS or CT traffic, this function
2362 * returns the buffer and also posts another buffer to the firmware.
2364 static struct lpfc_dmabuf
*
2365 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
2366 struct lpfc_sli_ring
*pring
,
2369 struct hbq_dmabuf
*hbq_entry
;
2371 if (tag
& QUE_BUFTAG_BIT
)
2372 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
2373 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
2376 return &hbq_entry
->dbuf
;
2380 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2381 * @phba: Pointer to HBA context object.
2382 * @pring: Pointer to driver SLI ring object.
2383 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2384 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2385 * @fch_type: the type for the first frame of the sequence.
2387 * This function is called with no lock held. This function uses the r_ctl and
2388 * type of the received sequence to find the correct callback function to call
2389 * to process the sequence.
2392 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2393 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
2398 /* unSolicited Responses */
2399 if (pring
->prt
[0].profile
) {
2400 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
2401 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
2405 /* We must search, based on rctl / type
2406 for the right routine */
2407 for (i
= 0; i
< pring
->num_mask
; i
++) {
2408 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
2409 (pring
->prt
[i
].type
== fch_type
)) {
2410 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2411 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2412 (phba
, pring
, saveq
);
2420 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2421 * @phba: Pointer to HBA context object.
2422 * @pring: Pointer to driver SLI ring object.
2423 * @saveq: Pointer to the unsolicited iocb.
2425 * This function is called with no lock held by the ring event handler
2426 * when there is an unsolicited iocb posted to the response ring by the
2427 * firmware. This function gets the buffer associated with the iocbs
2428 * and calls the event handler for the ring. This function handles both
2429 * qring buffers and hbq buffers.
2430 * When the function returns 1 the caller can free the iocb object otherwise
2431 * upper layer functions will free the iocb objects.
2434 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2435 struct lpfc_iocbq
*saveq
)
2439 uint32_t Rctl
, Type
;
2441 struct lpfc_iocbq
*iocbq
;
2442 struct lpfc_dmabuf
*dmzbuf
;
2445 irsp
= &(saveq
->iocb
);
2447 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2448 if (pring
->lpfc_sli_rcv_async_status
)
2449 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2451 lpfc_printf_log(phba
,
2454 "0316 Ring %d handler: unexpected "
2455 "ASYNC_STATUS iocb received evt_code "
2458 irsp
->un
.asyncstat
.evt_code
);
2462 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2463 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2464 if (irsp
->ulpBdeCount
> 0) {
2465 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2466 irsp
->un
.ulpWord
[3]);
2467 lpfc_in_buf_free(phba
, dmzbuf
);
2470 if (irsp
->ulpBdeCount
> 1) {
2471 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2472 irsp
->unsli3
.sli3Words
[3]);
2473 lpfc_in_buf_free(phba
, dmzbuf
);
2476 if (irsp
->ulpBdeCount
> 2) {
2477 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2478 irsp
->unsli3
.sli3Words
[7]);
2479 lpfc_in_buf_free(phba
, dmzbuf
);
2485 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2486 if (irsp
->ulpBdeCount
!= 0) {
2487 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2488 irsp
->un
.ulpWord
[3]);
2489 if (!saveq
->context2
)
2490 lpfc_printf_log(phba
,
2493 "0341 Ring %d Cannot find buffer for "
2494 "an unsolicited iocb. tag 0x%x\n",
2496 irsp
->un
.ulpWord
[3]);
2498 if (irsp
->ulpBdeCount
== 2) {
2499 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2500 irsp
->unsli3
.sli3Words
[7]);
2501 if (!saveq
->context3
)
2502 lpfc_printf_log(phba
,
2505 "0342 Ring %d Cannot find buffer for an"
2506 " unsolicited iocb. tag 0x%x\n",
2508 irsp
->unsli3
.sli3Words
[7]);
2510 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2511 irsp
= &(iocbq
->iocb
);
2512 if (irsp
->ulpBdeCount
!= 0) {
2513 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2514 irsp
->un
.ulpWord
[3]);
2515 if (!iocbq
->context2
)
2516 lpfc_printf_log(phba
,
2519 "0343 Ring %d Cannot find "
2520 "buffer for an unsolicited iocb"
2521 ". tag 0x%x\n", pring
->ringno
,
2522 irsp
->un
.ulpWord
[3]);
2524 if (irsp
->ulpBdeCount
== 2) {
2525 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2526 irsp
->unsli3
.sli3Words
[7]);
2527 if (!iocbq
->context3
)
2528 lpfc_printf_log(phba
,
2531 "0344 Ring %d Cannot find "
2532 "buffer for an unsolicited "
2535 irsp
->unsli3
.sli3Words
[7]);
2539 if (irsp
->ulpBdeCount
!= 0 &&
2540 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2541 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2544 /* search continue save q for same XRI */
2545 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2546 if (iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
==
2547 saveq
->iocb
.unsli3
.rcvsli3
.ox_id
) {
2548 list_add_tail(&saveq
->list
, &iocbq
->list
);
2554 list_add_tail(&saveq
->clist
,
2555 &pring
->iocb_continue_saveq
);
2556 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2557 list_del_init(&iocbq
->clist
);
2559 irsp
= &(saveq
->iocb
);
2563 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2564 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2565 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2566 Rctl
= FC_RCTL_ELS_REQ
;
2569 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2570 Rctl
= w5p
->hcsw
.Rctl
;
2571 Type
= w5p
->hcsw
.Type
;
2573 /* Firmware Workaround */
2574 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2575 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2576 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2577 Rctl
= FC_RCTL_ELS_REQ
;
2579 w5p
->hcsw
.Rctl
= Rctl
;
2580 w5p
->hcsw
.Type
= Type
;
2584 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2585 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2586 "0313 Ring %d handler: unexpected Rctl x%x "
2587 "Type x%x received\n",
2588 pring
->ringno
, Rctl
, Type
);
2594 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2595 * @phba: Pointer to HBA context object.
2596 * @pring: Pointer to driver SLI ring object.
2597 * @prspiocb: Pointer to response iocb object.
2599 * This function looks up the iocb_lookup table to get the command iocb
2600 * corresponding to the given response iocb using the iotag of the
2601 * response iocb. This function is called with the hbalock held.
2602 * This function returns the command iocb object if it finds the command
2603 * iocb else returns NULL.
2605 static struct lpfc_iocbq
*
2606 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2607 struct lpfc_sli_ring
*pring
,
2608 struct lpfc_iocbq
*prspiocb
)
2610 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2613 iotag
= prspiocb
->iocb
.ulpIoTag
;
2615 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2616 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2617 list_del_init(&cmd_iocb
->list
);
2618 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2619 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2624 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2625 "0317 iotag x%x is out off "
2626 "range: max iotag x%x wd0 x%x\n",
2627 iotag
, phba
->sli
.last_iotag
,
2628 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2633 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2634 * @phba: Pointer to HBA context object.
2635 * @pring: Pointer to driver SLI ring object.
2638 * This function looks up the iocb_lookup table to get the command iocb
2639 * corresponding to the given iotag. This function is called with the
2641 * This function returns the command iocb object if it finds the command
2642 * iocb else returns NULL.
2644 static struct lpfc_iocbq
*
2645 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2646 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2648 struct lpfc_iocbq
*cmd_iocb
;
2650 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2651 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2652 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2653 /* remove from txcmpl queue list */
2654 list_del_init(&cmd_iocb
->list
);
2655 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2659 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2660 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2661 iotag
, phba
->sli
.last_iotag
);
2666 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2667 * @phba: Pointer to HBA context object.
2668 * @pring: Pointer to driver SLI ring object.
2669 * @saveq: Pointer to the response iocb to be processed.
2671 * This function is called by the ring event handler for non-fcp
2672 * rings when there is a new response iocb in the response ring.
2673 * The caller is not required to hold any locks. This function
2674 * gets the command iocb associated with the response iocb and
2675 * calls the completion handler for the command iocb. If there
2676 * is no completion handler, the function will free the resources
2677 * associated with command iocb. If the response iocb is for
2678 * an already aborted command iocb, the status of the completion
2679 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2680 * This function always returns 1.
2683 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2684 struct lpfc_iocbq
*saveq
)
2686 struct lpfc_iocbq
*cmdiocbp
;
2688 unsigned long iflag
;
2690 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2691 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2692 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2693 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2696 if (cmdiocbp
->iocb_cmpl
) {
2698 * If an ELS command failed send an event to mgmt
2701 if (saveq
->iocb
.ulpStatus
&&
2702 (pring
->ringno
== LPFC_ELS_RING
) &&
2703 (cmdiocbp
->iocb
.ulpCommand
==
2704 CMD_ELS_REQUEST64_CR
))
2705 lpfc_send_els_failure_event(phba
,
2709 * Post all ELS completions to the worker thread.
2710 * All other are passed to the completion callback.
2712 if (pring
->ringno
== LPFC_ELS_RING
) {
2713 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2714 (cmdiocbp
->iocb_flag
&
2715 LPFC_DRIVER_ABORTED
)) {
2716 spin_lock_irqsave(&phba
->hbalock
,
2718 cmdiocbp
->iocb_flag
&=
2719 ~LPFC_DRIVER_ABORTED
;
2720 spin_unlock_irqrestore(&phba
->hbalock
,
2722 saveq
->iocb
.ulpStatus
=
2723 IOSTAT_LOCAL_REJECT
;
2724 saveq
->iocb
.un
.ulpWord
[4] =
2727 /* Firmware could still be in progress
2728 * of DMAing payload, so don't free data
2729 * buffer till after a hbeat.
2731 spin_lock_irqsave(&phba
->hbalock
,
2733 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2734 spin_unlock_irqrestore(&phba
->hbalock
,
2737 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2738 if (saveq
->iocb_flag
&
2739 LPFC_EXCHANGE_BUSY
) {
2740 /* Set cmdiocb flag for the
2741 * exchange busy so sgl (xri)
2742 * will not be released until
2743 * the abort xri is received
2747 &phba
->hbalock
, iflag
);
2748 cmdiocbp
->iocb_flag
|=
2750 spin_unlock_irqrestore(
2751 &phba
->hbalock
, iflag
);
2753 if (cmdiocbp
->iocb_flag
&
2754 LPFC_DRIVER_ABORTED
) {
2756 * Clear LPFC_DRIVER_ABORTED
2757 * bit in case it was driver
2761 &phba
->hbalock
, iflag
);
2762 cmdiocbp
->iocb_flag
&=
2763 ~LPFC_DRIVER_ABORTED
;
2764 spin_unlock_irqrestore(
2765 &phba
->hbalock
, iflag
);
2766 cmdiocbp
->iocb
.ulpStatus
=
2767 IOSTAT_LOCAL_REJECT
;
2768 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2769 IOERR_ABORT_REQUESTED
;
2771 * For SLI4, irsiocb contains
2772 * NO_XRI in sli_xritag, it
2773 * shall not affect releasing
2774 * sgl (xri) process.
2776 saveq
->iocb
.ulpStatus
=
2777 IOSTAT_LOCAL_REJECT
;
2778 saveq
->iocb
.un
.ulpWord
[4] =
2781 &phba
->hbalock
, iflag
);
2783 LPFC_DELAY_MEM_FREE
;
2784 spin_unlock_irqrestore(
2785 &phba
->hbalock
, iflag
);
2789 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2791 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2794 * Unknown initiating command based on the response iotag.
2795 * This could be the case on the ELS ring because of
2798 if (pring
->ringno
!= LPFC_ELS_RING
) {
2800 * Ring <ringno> handler: unexpected completion IoTag
2803 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2804 "0322 Ring %d handler: "
2805 "unexpected completion IoTag x%x "
2806 "Data: x%x x%x x%x x%x\n",
2808 saveq
->iocb
.ulpIoTag
,
2809 saveq
->iocb
.ulpStatus
,
2810 saveq
->iocb
.un
.ulpWord
[4],
2811 saveq
->iocb
.ulpCommand
,
2812 saveq
->iocb
.ulpContext
);
2820 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2821 * @phba: Pointer to HBA context object.
2822 * @pring: Pointer to driver SLI ring object.
2824 * This function is called from the iocb ring event handlers when
2825 * put pointer is ahead of the get pointer for a ring. This function signal
2826 * an error attention condition to the worker thread and the worker
2827 * thread will transition the HBA to offline state.
2830 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2832 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2834 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2835 * rsp ring <portRspMax>
2837 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2838 "0312 Ring %d handler: portRspPut %d "
2839 "is bigger than rsp ring %d\n",
2840 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2841 pring
->sli
.sli3
.numRiocb
);
2843 phba
->link_state
= LPFC_HBA_ERROR
;
2846 * All error attention handlers are posted to
2849 phba
->work_ha
|= HA_ERATT
;
2850 phba
->work_hs
= HS_FFER3
;
2852 lpfc_worker_wake_up(phba
);
2858 * lpfc_poll_eratt - Error attention polling timer timeout handler
2859 * @ptr: Pointer to address of HBA context object.
2861 * This function is invoked by the Error Attention polling timer when the
2862 * timer times out. It will check the SLI Error Attention register for
2863 * possible attention events. If so, it will post an Error Attention event
2864 * and wake up worker thread to process it. Otherwise, it will set up the
2865 * Error Attention polling timer for the next poll.
2867 void lpfc_poll_eratt(unsigned long ptr
)
2869 struct lpfc_hba
*phba
;
2870 uint32_t eratt
= 0, rem
;
2871 uint64_t sli_intr
, cnt
;
2873 phba
= (struct lpfc_hba
*)ptr
;
2875 /* Here we will also keep track of interrupts per sec of the hba */
2876 sli_intr
= phba
->sli
.slistat
.sli_intr
;
2878 if (phba
->sli
.slistat
.sli_prev_intr
> sli_intr
)
2879 cnt
= (((uint64_t)(-1) - phba
->sli
.slistat
.sli_prev_intr
) +
2882 cnt
= (sli_intr
- phba
->sli
.slistat
.sli_prev_intr
);
2884 /* 64-bit integer division not supporte on 32-bit x86 - use do_div */
2885 rem
= do_div(cnt
, LPFC_ERATT_POLL_INTERVAL
);
2886 phba
->sli
.slistat
.sli_ips
= cnt
;
2888 phba
->sli
.slistat
.sli_prev_intr
= sli_intr
;
2890 /* Check chip HA register for error event */
2891 eratt
= lpfc_sli_check_eratt(phba
);
2894 /* Tell the worker thread there is work to do */
2895 lpfc_worker_wake_up(phba
);
2897 /* Restart the timer for next eratt poll */
2898 mod_timer(&phba
->eratt_poll
,
2900 msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL
));
2906 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2907 * @phba: Pointer to HBA context object.
2908 * @pring: Pointer to driver SLI ring object.
2909 * @mask: Host attention register mask for this ring.
2911 * This function is called from the interrupt context when there is a ring
2912 * event for the fcp ring. The caller does not hold any lock.
2913 * The function processes each response iocb in the response ring until it
2914 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2915 * LE bit set. The function will call the completion handler of the command iocb
2916 * if the response iocb indicates a completion for a command iocb or it is
2917 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2918 * function if this is an unsolicited iocb.
2919 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2920 * to check it explicitly.
2923 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2924 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2926 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2927 IOCB_t
*irsp
= NULL
;
2928 IOCB_t
*entry
= NULL
;
2929 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2930 struct lpfc_iocbq rspiocbq
;
2932 uint32_t portRspPut
, portRspMax
;
2934 lpfc_iocb_type type
;
2935 unsigned long iflag
;
2936 uint32_t rsp_cmpl
= 0;
2938 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2939 pring
->stats
.iocb_event
++;
2942 * The next available response entry should never exceed the maximum
2943 * entries. If it does, treat it as an adapter hardware error.
2945 portRspMax
= pring
->sli
.sli3
.numRiocb
;
2946 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2947 if (unlikely(portRspPut
>= portRspMax
)) {
2948 lpfc_sli_rsp_pointers_error(phba
, pring
);
2949 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2952 if (phba
->fcp_ring_in_use
) {
2953 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2956 phba
->fcp_ring_in_use
= 1;
2959 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
2961 * Fetch an entry off the ring and copy it into a local data
2962 * structure. The copy involves a byte-swap since the
2963 * network byte order and pci byte orders are different.
2965 entry
= lpfc_resp_iocb(phba
, pring
);
2966 phba
->last_completion_time
= jiffies
;
2968 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
2969 pring
->sli
.sli3
.rspidx
= 0;
2971 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2972 (uint32_t *) &rspiocbq
.iocb
,
2973 phba
->iocb_rsp_size
);
2974 INIT_LIST_HEAD(&(rspiocbq
.list
));
2975 irsp
= &rspiocbq
.iocb
;
2977 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2978 pring
->stats
.iocb_rsp
++;
2981 if (unlikely(irsp
->ulpStatus
)) {
2983 * If resource errors reported from HBA, reduce
2984 * queuedepths of the SCSI device.
2986 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2987 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
2988 IOERR_NO_RESOURCES
)) {
2989 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2990 phba
->lpfc_rampdown_queue_depth(phba
);
2991 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2994 /* Rsp ring <ringno> error: IOCB */
2995 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2996 "0336 Rsp Ring %d error: IOCB Data: "
2997 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2999 irsp
->un
.ulpWord
[0],
3000 irsp
->un
.ulpWord
[1],
3001 irsp
->un
.ulpWord
[2],
3002 irsp
->un
.ulpWord
[3],
3003 irsp
->un
.ulpWord
[4],
3004 irsp
->un
.ulpWord
[5],
3005 *(uint32_t *)&irsp
->un1
,
3006 *((uint32_t *)&irsp
->un1
+ 1));
3010 case LPFC_ABORT_IOCB
:
3013 * Idle exchange closed via ABTS from port. No iocb
3014 * resources need to be recovered.
3016 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
3017 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3018 "0333 IOCB cmd 0x%x"
3019 " processed. Skipping"
3025 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
3027 if (unlikely(!cmdiocbq
))
3029 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
3030 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
3031 if (cmdiocbq
->iocb_cmpl
) {
3032 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3033 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
3035 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3038 case LPFC_UNSOL_IOCB
:
3039 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3040 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
3041 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3044 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3045 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3046 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3047 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
3049 dev_warn(&((phba
->pcidev
)->dev
),
3051 phba
->brd_no
, adaptermsg
);
3053 /* Unknown IOCB command */
3054 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3055 "0334 Unknown IOCB command "
3056 "Data: x%x, x%x x%x x%x x%x\n",
3057 type
, irsp
->ulpCommand
,
3066 * The response IOCB has been processed. Update the ring
3067 * pointer in SLIM. If the port response put pointer has not
3068 * been updated, sync the pgp->rspPutInx and fetch the new port
3069 * response put pointer.
3071 writel(pring
->sli
.sli3
.rspidx
,
3072 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3074 if (pring
->sli
.sli3
.rspidx
== portRspPut
)
3075 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3078 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
3079 pring
->stats
.iocb_rsp_full
++;
3080 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3081 writel(status
, phba
->CAregaddr
);
3082 readl(phba
->CAregaddr
);
3084 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3085 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3086 pring
->stats
.iocb_cmd_empty
++;
3088 /* Force update of the local copy of cmdGetInx */
3089 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3090 lpfc_sli_resume_iocb(phba
, pring
);
3092 if ((pring
->lpfc_sli_cmd_available
))
3093 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3097 phba
->fcp_ring_in_use
= 0;
3098 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3103 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3104 * @phba: Pointer to HBA context object.
3105 * @pring: Pointer to driver SLI ring object.
3106 * @rspiocbp: Pointer to driver response IOCB object.
3108 * This function is called from the worker thread when there is a slow-path
3109 * response IOCB to process. This function chains all the response iocbs until
3110 * seeing the iocb with the LE bit set. The function will call
3111 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3112 * completion of a command iocb. The function will call the
3113 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3114 * The function frees the resources or calls the completion handler if this
3115 * iocb is an abort completion. The function returns NULL when the response
3116 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3117 * this function shall chain the iocb on to the iocb_continueq and return the
3118 * response iocb passed in.
3120 static struct lpfc_iocbq
*
3121 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
3122 struct lpfc_iocbq
*rspiocbp
)
3124 struct lpfc_iocbq
*saveq
;
3125 struct lpfc_iocbq
*cmdiocbp
;
3126 struct lpfc_iocbq
*next_iocb
;
3127 IOCB_t
*irsp
= NULL
;
3128 uint32_t free_saveq
;
3129 uint8_t iocb_cmd_type
;
3130 lpfc_iocb_type type
;
3131 unsigned long iflag
;
3134 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3135 /* First add the response iocb to the countinueq list */
3136 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
3137 pring
->iocb_continueq_cnt
++;
3139 /* Now, determine whether the list is completed for processing */
3140 irsp
= &rspiocbp
->iocb
;
3143 * By default, the driver expects to free all resources
3144 * associated with this iocb completion.
3147 saveq
= list_get_first(&pring
->iocb_continueq
,
3148 struct lpfc_iocbq
, list
);
3149 irsp
= &(saveq
->iocb
);
3150 list_del_init(&pring
->iocb_continueq
);
3151 pring
->iocb_continueq_cnt
= 0;
3153 pring
->stats
.iocb_rsp
++;
3156 * If resource errors reported from HBA, reduce
3157 * queuedepths of the SCSI device.
3159 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3160 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
3161 IOERR_NO_RESOURCES
)) {
3162 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3163 phba
->lpfc_rampdown_queue_depth(phba
);
3164 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3167 if (irsp
->ulpStatus
) {
3168 /* Rsp ring <ringno> error: IOCB */
3169 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3170 "0328 Rsp Ring %d error: "
3175 "x%x x%x x%x x%x\n",
3177 irsp
->un
.ulpWord
[0],
3178 irsp
->un
.ulpWord
[1],
3179 irsp
->un
.ulpWord
[2],
3180 irsp
->un
.ulpWord
[3],
3181 irsp
->un
.ulpWord
[4],
3182 irsp
->un
.ulpWord
[5],
3183 *(((uint32_t *) irsp
) + 6),
3184 *(((uint32_t *) irsp
) + 7),
3185 *(((uint32_t *) irsp
) + 8),
3186 *(((uint32_t *) irsp
) + 9),
3187 *(((uint32_t *) irsp
) + 10),
3188 *(((uint32_t *) irsp
) + 11),
3189 *(((uint32_t *) irsp
) + 12),
3190 *(((uint32_t *) irsp
) + 13),
3191 *(((uint32_t *) irsp
) + 14),
3192 *(((uint32_t *) irsp
) + 15));
3196 * Fetch the IOCB command type and call the correct completion
3197 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3198 * get freed back to the lpfc_iocb_list by the discovery
3201 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
3202 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
3205 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3206 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
3207 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3210 case LPFC_UNSOL_IOCB
:
3211 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3212 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
3213 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3218 case LPFC_ABORT_IOCB
:
3220 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
3221 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
3224 /* Call the specified completion routine */
3225 if (cmdiocbp
->iocb_cmpl
) {
3226 spin_unlock_irqrestore(&phba
->hbalock
,
3228 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
3230 spin_lock_irqsave(&phba
->hbalock
,
3233 __lpfc_sli_release_iocbq(phba
,
3238 case LPFC_UNKNOWN_IOCB
:
3239 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3240 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3241 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3242 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
3244 dev_warn(&((phba
->pcidev
)->dev
),
3246 phba
->brd_no
, adaptermsg
);
3248 /* Unknown IOCB command */
3249 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3250 "0335 Unknown IOCB "
3251 "command Data: x%x "
3262 list_for_each_entry_safe(rspiocbp
, next_iocb
,
3263 &saveq
->list
, list
) {
3264 list_del_init(&rspiocbp
->list
);
3265 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
3267 __lpfc_sli_release_iocbq(phba
, saveq
);
3271 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3276 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3277 * @phba: Pointer to HBA context object.
3278 * @pring: Pointer to driver SLI ring object.
3279 * @mask: Host attention register mask for this ring.
3281 * This routine wraps the actual slow_ring event process routine from the
3282 * API jump table function pointer from the lpfc_hba struct.
3285 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
3286 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3288 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
3292 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3293 * @phba: Pointer to HBA context object.
3294 * @pring: Pointer to driver SLI ring object.
3295 * @mask: Host attention register mask for this ring.
3297 * This function is called from the worker thread when there is a ring event
3298 * for non-fcp rings. The caller does not hold any lock. The function will
3299 * remove each response iocb in the response ring and calls the handle
3300 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3303 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
3304 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3306 struct lpfc_pgp
*pgp
;
3308 IOCB_t
*irsp
= NULL
;
3309 struct lpfc_iocbq
*rspiocbp
= NULL
;
3310 uint32_t portRspPut
, portRspMax
;
3311 unsigned long iflag
;
3314 pgp
= &phba
->port_gp
[pring
->ringno
];
3315 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3316 pring
->stats
.iocb_event
++;
3319 * The next available response entry should never exceed the maximum
3320 * entries. If it does, treat it as an adapter hardware error.
3322 portRspMax
= pring
->sli
.sli3
.numRiocb
;
3323 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3324 if (portRspPut
>= portRspMax
) {
3326 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3327 * rsp ring <portRspMax>
3329 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3330 "0303 Ring %d handler: portRspPut %d "
3331 "is bigger than rsp ring %d\n",
3332 pring
->ringno
, portRspPut
, portRspMax
);
3334 phba
->link_state
= LPFC_HBA_ERROR
;
3335 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3337 phba
->work_hs
= HS_FFER3
;
3338 lpfc_handle_eratt(phba
);
3344 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
3346 * Build a completion list and call the appropriate handler.
3347 * The process is to get the next available response iocb, get
3348 * a free iocb from the list, copy the response data into the
3349 * free iocb, insert to the continuation list, and update the
3350 * next response index to slim. This process makes response
3351 * iocb's in the ring available to DMA as fast as possible but
3352 * pays a penalty for a copy operation. Since the iocb is
3353 * only 32 bytes, this penalty is considered small relative to
3354 * the PCI reads for register values and a slim write. When
3355 * the ulpLe field is set, the entire Command has been
3358 entry
= lpfc_resp_iocb(phba
, pring
);
3360 phba
->last_completion_time
= jiffies
;
3361 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
3362 if (rspiocbp
== NULL
) {
3363 printk(KERN_ERR
"%s: out of buffers! Failing "
3364 "completion.\n", __func__
);
3368 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
3369 phba
->iocb_rsp_size
);
3370 irsp
= &rspiocbp
->iocb
;
3372 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
3373 pring
->sli
.sli3
.rspidx
= 0;
3375 if (pring
->ringno
== LPFC_ELS_RING
) {
3376 lpfc_debugfs_slow_ring_trc(phba
,
3377 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3378 *(((uint32_t *) irsp
) + 4),
3379 *(((uint32_t *) irsp
) + 6),
3380 *(((uint32_t *) irsp
) + 7));
3383 writel(pring
->sli
.sli3
.rspidx
,
3384 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3386 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3387 /* Handle the response IOCB */
3388 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
3389 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3392 * If the port response put pointer has not been updated, sync
3393 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3394 * response put pointer.
3396 if (pring
->sli
.sli3
.rspidx
== portRspPut
) {
3397 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3399 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3401 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
3402 /* At least one response entry has been freed */
3403 pring
->stats
.iocb_rsp_full
++;
3404 /* SET RxRE_RSP in Chip Att register */
3405 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3406 writel(status
, phba
->CAregaddr
);
3407 readl(phba
->CAregaddr
); /* flush */
3409 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3410 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3411 pring
->stats
.iocb_cmd_empty
++;
3413 /* Force update of the local copy of cmdGetInx */
3414 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3415 lpfc_sli_resume_iocb(phba
, pring
);
3417 if ((pring
->lpfc_sli_cmd_available
))
3418 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3422 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3427 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3428 * @phba: Pointer to HBA context object.
3429 * @pring: Pointer to driver SLI ring object.
3430 * @mask: Host attention register mask for this ring.
3432 * This function is called from the worker thread when there is a pending
3433 * ELS response iocb on the driver internal slow-path response iocb worker
3434 * queue. The caller does not hold any lock. The function will remove each
3435 * response iocb from the response worker queue and calls the handle
3436 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3439 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
3440 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3442 struct lpfc_iocbq
*irspiocbq
;
3443 struct hbq_dmabuf
*dmabuf
;
3444 struct lpfc_cq_event
*cq_event
;
3445 unsigned long iflag
;
3447 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3448 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
3449 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3450 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
3451 /* Get the response iocb from the head of work queue */
3452 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3453 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3454 cq_event
, struct lpfc_cq_event
, list
);
3455 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3457 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3458 case CQE_CODE_COMPL_WQE
:
3459 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3461 /* Translate ELS WCQE to response IOCBQ */
3462 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3465 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3468 case CQE_CODE_RECEIVE
:
3469 case CQE_CODE_RECEIVE_V1
:
3470 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3472 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3481 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3482 * @phba: Pointer to HBA context object.
3483 * @pring: Pointer to driver SLI ring object.
3485 * This function aborts all iocbs in the given ring and frees all the iocb
3486 * objects in txq. This function issues an abort iocb for all the iocb commands
3487 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3488 * the return of this function. The caller is not required to hold any locks.
3491 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3493 LIST_HEAD(completions
);
3494 struct lpfc_iocbq
*iocb
, *next_iocb
;
3496 if (pring
->ringno
== LPFC_ELS_RING
) {
3497 lpfc_fabric_abort_hba(phba
);
3500 /* Error everything on txq and txcmplq
3503 spin_lock_irq(&phba
->hbalock
);
3504 list_splice_init(&pring
->txq
, &completions
);
3506 /* Next issue ABTS for everything on the txcmplq */
3507 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3508 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3510 spin_unlock_irq(&phba
->hbalock
);
3512 /* Cancel all the IOCBs from the completions list */
3513 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3518 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3519 * @phba: Pointer to HBA context object.
3521 * This function flushes all iocbs in the fcp ring and frees all the iocb
3522 * objects in txq and txcmplq. This function will not issue abort iocbs
3523 * for all the iocb commands in txcmplq, they will just be returned with
3524 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3525 * slot has been permanently disabled.
3528 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3532 struct lpfc_sli
*psli
= &phba
->sli
;
3533 struct lpfc_sli_ring
*pring
;
3535 /* Currently, only one fcp ring */
3536 pring
= &psli
->ring
[psli
->fcp_ring
];
3538 spin_lock_irq(&phba
->hbalock
);
3539 /* Retrieve everything on txq */
3540 list_splice_init(&pring
->txq
, &txq
);
3542 /* Retrieve everything on the txcmplq */
3543 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3545 /* Indicate the I/O queues are flushed */
3546 phba
->hba_flag
|= HBA_FCP_IOQ_FLUSH
;
3547 spin_unlock_irq(&phba
->hbalock
);
3550 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3553 /* Flush the txcmpq */
3554 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3559 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3560 * @phba: Pointer to HBA context object.
3561 * @mask: Bit mask to be checked.
3563 * This function reads the host status register and compares
3564 * with the provided bit mask to check if HBA completed
3565 * the restart. This function will wait in a loop for the
3566 * HBA to complete restart. If the HBA does not restart within
3567 * 15 iterations, the function will reset the HBA again. The
3568 * function returns 1 when HBA fail to restart otherwise returns
3572 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3578 /* Read the HBA Host Status Register */
3579 if (lpfc_readl(phba
->HSregaddr
, &status
))
3583 * Check status register every 100ms for 5 retries, then every
3584 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3585 * every 2.5 sec for 4.
3586 * Break our of the loop if errors occurred during init.
3588 while (((status
& mask
) != mask
) &&
3589 !(status
& HS_FFERM
) &&
3601 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3602 lpfc_sli_brdrestart(phba
);
3604 /* Read the HBA Host Status Register */
3605 if (lpfc_readl(phba
->HSregaddr
, &status
)) {
3611 /* Check to see if any errors occurred during init */
3612 if ((status
& HS_FFERM
) || (i
>= 20)) {
3613 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3614 "2751 Adapter failed to restart, "
3615 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3617 readl(phba
->MBslimaddr
+ 0xa8),
3618 readl(phba
->MBslimaddr
+ 0xac));
3619 phba
->link_state
= LPFC_HBA_ERROR
;
3627 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3628 * @phba: Pointer to HBA context object.
3629 * @mask: Bit mask to be checked.
3631 * This function checks the host status register to check if HBA is
3632 * ready. This function will wait in a loop for the HBA to be ready
3633 * If the HBA is not ready , the function will will reset the HBA PCI
3634 * function again. The function returns 1 when HBA fail to be ready
3635 * otherwise returns zero.
3638 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3643 /* Read the HBA Host Status Register */
3644 status
= lpfc_sli4_post_status_check(phba
);
3647 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3648 lpfc_sli_brdrestart(phba
);
3649 status
= lpfc_sli4_post_status_check(phba
);
3652 /* Check to see if any errors occurred during init */
3654 phba
->link_state
= LPFC_HBA_ERROR
;
3657 phba
->sli4_hba
.intr_enable
= 0;
3663 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3664 * @phba: Pointer to HBA context object.
3665 * @mask: Bit mask to be checked.
3667 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3668 * from the API jump table function pointer from the lpfc_hba struct.
3671 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3673 return phba
->lpfc_sli_brdready(phba
, mask
);
3676 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3679 * lpfc_reset_barrier - Make HBA ready for HBA reset
3680 * @phba: Pointer to HBA context object.
3682 * This function is called before resetting an HBA. This function is called
3683 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3685 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3687 uint32_t __iomem
*resp_buf
;
3688 uint32_t __iomem
*mbox_buf
;
3689 volatile uint32_t mbox
;
3690 uint32_t hc_copy
, ha_copy
, resp_data
;
3694 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3695 if (hdrtype
!= 0x80 ||
3696 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3697 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3701 * Tell the other part of the chip to suspend temporarily all
3704 resp_buf
= phba
->MBslimaddr
;
3706 /* Disable the error attention */
3707 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
3709 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3710 readl(phba
->HCregaddr
); /* flush */
3711 phba
->link_flag
|= LS_IGNORE_ERATT
;
3713 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3715 if (ha_copy
& HA_ERATT
) {
3716 /* Clear Chip error bit */
3717 writel(HA_ERATT
, phba
->HAregaddr
);
3718 phba
->pport
->stopped
= 1;
3722 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3723 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3725 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3726 mbox_buf
= phba
->MBslimaddr
;
3727 writel(mbox
, mbox_buf
);
3729 for (i
= 0; i
< 50; i
++) {
3730 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3732 if (resp_data
!= ~(BARRIER_TEST_PATTERN
))
3738 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3740 if (resp_data
!= ~(BARRIER_TEST_PATTERN
)) {
3741 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3742 phba
->pport
->stopped
)
3748 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3750 for (i
= 0; i
< 500; i
++) {
3751 if (lpfc_readl(resp_buf
, &resp_data
))
3753 if (resp_data
!= mbox
)
3762 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3764 if (!(ha_copy
& HA_ERATT
))
3770 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3771 writel(HA_ERATT
, phba
->HAregaddr
);
3772 phba
->pport
->stopped
= 1;
3776 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3777 writel(hc_copy
, phba
->HCregaddr
);
3778 readl(phba
->HCregaddr
); /* flush */
3782 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3783 * @phba: Pointer to HBA context object.
3785 * This function issues a kill_board mailbox command and waits for
3786 * the error attention interrupt. This function is called for stopping
3787 * the firmware processing. The caller is not required to hold any
3788 * locks. This function calls lpfc_hba_down_post function to free
3789 * any pending commands after the kill. The function will return 1 when it
3790 * fails to kill the board else will return 0.
3793 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3795 struct lpfc_sli
*psli
;
3805 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3806 "0329 Kill HBA Data: x%x x%x\n",
3807 phba
->pport
->port_state
, psli
->sli_flag
);
3809 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3813 /* Disable the error attention */
3814 spin_lock_irq(&phba
->hbalock
);
3815 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
3816 spin_unlock_irq(&phba
->hbalock
);
3817 mempool_free(pmb
, phba
->mbox_mem_pool
);
3820 status
&= ~HC_ERINT_ENA
;
3821 writel(status
, phba
->HCregaddr
);
3822 readl(phba
->HCregaddr
); /* flush */
3823 phba
->link_flag
|= LS_IGNORE_ERATT
;
3824 spin_unlock_irq(&phba
->hbalock
);
3826 lpfc_kill_board(phba
, pmb
);
3827 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3828 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3830 if (retval
!= MBX_SUCCESS
) {
3831 if (retval
!= MBX_BUSY
)
3832 mempool_free(pmb
, phba
->mbox_mem_pool
);
3833 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3834 "2752 KILL_BOARD command failed retval %d\n",
3836 spin_lock_irq(&phba
->hbalock
);
3837 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3838 spin_unlock_irq(&phba
->hbalock
);
3842 spin_lock_irq(&phba
->hbalock
);
3843 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3844 spin_unlock_irq(&phba
->hbalock
);
3846 mempool_free(pmb
, phba
->mbox_mem_pool
);
3848 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3849 * attention every 100ms for 3 seconds. If we don't get ERATT after
3850 * 3 seconds we still set HBA_ERROR state because the status of the
3851 * board is now undefined.
3853 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3855 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3857 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3861 del_timer_sync(&psli
->mbox_tmo
);
3862 if (ha_copy
& HA_ERATT
) {
3863 writel(HA_ERATT
, phba
->HAregaddr
);
3864 phba
->pport
->stopped
= 1;
3866 spin_lock_irq(&phba
->hbalock
);
3867 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3868 psli
->mbox_active
= NULL
;
3869 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3870 spin_unlock_irq(&phba
->hbalock
);
3872 lpfc_hba_down_post(phba
);
3873 phba
->link_state
= LPFC_HBA_ERROR
;
3875 return ha_copy
& HA_ERATT
? 0 : 1;
3879 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3880 * @phba: Pointer to HBA context object.
3882 * This function resets the HBA by writing HC_INITFF to the control
3883 * register. After the HBA resets, this function resets all the iocb ring
3884 * indices. This function disables PCI layer parity checking during
3886 * This function returns 0 always.
3887 * The caller is not required to hold any locks.
3890 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3892 struct lpfc_sli
*psli
;
3893 struct lpfc_sli_ring
*pring
;
3900 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3901 "0325 Reset HBA Data: x%x x%x\n",
3902 phba
->pport
->port_state
, psli
->sli_flag
);
3904 /* perform board reset */
3905 phba
->fc_eventTag
= 0;
3906 phba
->link_events
= 0;
3907 phba
->pport
->fc_myDID
= 0;
3908 phba
->pport
->fc_prevDID
= 0;
3910 /* Turn off parity checking and serr during the physical reset */
3911 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3912 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3914 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3916 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3918 /* Now toggle INITFF bit in the Host Control Register */
3919 writel(HC_INITFF
, phba
->HCregaddr
);
3921 readl(phba
->HCregaddr
); /* flush */
3922 writel(0, phba
->HCregaddr
);
3923 readl(phba
->HCregaddr
); /* flush */
3925 /* Restore PCI cmd register */
3926 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3928 /* Initialize relevant SLI info */
3929 for (i
= 0; i
< psli
->num_rings
; i
++) {
3930 pring
= &psli
->ring
[i
];
3932 pring
->sli
.sli3
.rspidx
= 0;
3933 pring
->sli
.sli3
.next_cmdidx
= 0;
3934 pring
->sli
.sli3
.local_getidx
= 0;
3935 pring
->sli
.sli3
.cmdidx
= 0;
3936 pring
->missbufcnt
= 0;
3939 phba
->link_state
= LPFC_WARM_START
;
3944 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3945 * @phba: Pointer to HBA context object.
3947 * This function resets a SLI4 HBA. This function disables PCI layer parity
3948 * checking during resets the device. The caller is not required to hold
3951 * This function returns 0 always.
3954 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3956 struct lpfc_sli
*psli
= &phba
->sli
;
3961 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3962 "0295 Reset HBA Data: x%x x%x\n",
3963 phba
->pport
->port_state
, psli
->sli_flag
);
3965 /* perform board reset */
3966 phba
->fc_eventTag
= 0;
3967 phba
->link_events
= 0;
3968 phba
->pport
->fc_myDID
= 0;
3969 phba
->pport
->fc_prevDID
= 0;
3971 spin_lock_irq(&phba
->hbalock
);
3972 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3973 phba
->fcf
.fcf_flag
= 0;
3974 spin_unlock_irq(&phba
->hbalock
);
3976 /* Now physically reset the device */
3977 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3978 "0389 Performing PCI function reset!\n");
3980 /* Turn off parity checking and serr during the physical reset */
3981 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3982 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, (cfg_value
&
3983 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3985 /* Perform FCoE PCI function reset before freeing queue memory */
3986 rc
= lpfc_pci_function_reset(phba
);
3987 lpfc_sli4_queue_destroy(phba
);
3989 /* Restore PCI cmd register */
3990 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3996 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3997 * @phba: Pointer to HBA context object.
3999 * This function is called in the SLI initialization code path to
4000 * restart the HBA. The caller is not required to hold any lock.
4001 * This function writes MBX_RESTART mailbox command to the SLIM and
4002 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4003 * function to free any pending commands. The function enables
4004 * POST only during the first initialization. The function returns zero.
4005 * The function does not guarantee completion of MBX_RESTART mailbox
4006 * command before the return of this function.
4009 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
4012 struct lpfc_sli
*psli
;
4013 volatile uint32_t word0
;
4014 void __iomem
*to_slim
;
4015 uint32_t hba_aer_enabled
;
4017 spin_lock_irq(&phba
->hbalock
);
4019 /* Take PCIe device Advanced Error Reporting (AER) state */
4020 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4025 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4026 "0337 Restart HBA Data: x%x x%x\n",
4027 phba
->pport
->port_state
, psli
->sli_flag
);
4030 mb
= (MAILBOX_t
*) &word0
;
4031 mb
->mbxCommand
= MBX_RESTART
;
4034 lpfc_reset_barrier(phba
);
4036 to_slim
= phba
->MBslimaddr
;
4037 writel(*(uint32_t *) mb
, to_slim
);
4038 readl(to_slim
); /* flush */
4040 /* Only skip post after fc_ffinit is completed */
4041 if (phba
->pport
->port_state
)
4042 word0
= 1; /* This is really setting up word1 */
4044 word0
= 0; /* This is really setting up word1 */
4045 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
4046 writel(*(uint32_t *) mb
, to_slim
);
4047 readl(to_slim
); /* flush */
4049 lpfc_sli_brdreset(phba
);
4050 phba
->pport
->stopped
= 0;
4051 phba
->link_state
= LPFC_INIT_START
;
4053 spin_unlock_irq(&phba
->hbalock
);
4055 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4056 psli
->stats_start
= get_seconds();
4058 /* Give the INITFF and Post time to settle. */
4061 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4062 if (hba_aer_enabled
)
4063 pci_disable_pcie_error_reporting(phba
->pcidev
);
4065 lpfc_hba_down_post(phba
);
4071 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4072 * @phba: Pointer to HBA context object.
4074 * This function is called in the SLI initialization code path to restart
4075 * a SLI4 HBA. The caller is not required to hold any lock.
4076 * At the end of the function, it calls lpfc_hba_down_post function to
4077 * free any pending commands.
4080 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
4082 struct lpfc_sli
*psli
= &phba
->sli
;
4083 uint32_t hba_aer_enabled
;
4087 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4088 "0296 Restart HBA Data: x%x x%x\n",
4089 phba
->pport
->port_state
, psli
->sli_flag
);
4091 /* Take PCIe device Advanced Error Reporting (AER) state */
4092 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4094 rc
= lpfc_sli4_brdreset(phba
);
4096 spin_lock_irq(&phba
->hbalock
);
4097 phba
->pport
->stopped
= 0;
4098 phba
->link_state
= LPFC_INIT_START
;
4100 spin_unlock_irq(&phba
->hbalock
);
4102 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4103 psli
->stats_start
= get_seconds();
4105 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4106 if (hba_aer_enabled
)
4107 pci_disable_pcie_error_reporting(phba
->pcidev
);
4109 lpfc_hba_down_post(phba
);
4115 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4116 * @phba: Pointer to HBA context object.
4118 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4119 * API jump table function pointer from the lpfc_hba struct.
4122 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
4124 return phba
->lpfc_sli_brdrestart(phba
);
4128 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4129 * @phba: Pointer to HBA context object.
4131 * This function is called after a HBA restart to wait for successful
4132 * restart of the HBA. Successful restart of the HBA is indicated by
4133 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4134 * iteration, the function will restart the HBA again. The function returns
4135 * zero if HBA successfully restarted else returns negative error code.
4138 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
4140 uint32_t status
, i
= 0;
4142 /* Read the HBA Host Status Register */
4143 if (lpfc_readl(phba
->HSregaddr
, &status
))
4146 /* Check status register to see what current state is */
4148 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
4150 /* Check every 10ms for 10 retries, then every 100ms for 90
4151 * retries, then every 1 sec for 50 retires for a total of
4152 * ~60 seconds before reset the board again and check every
4153 * 1 sec for 50 retries. The up to 60 seconds before the
4154 * board ready is required by the Falcon FIPS zeroization
4155 * complete, and any reset the board in between shall cause
4156 * restart of zeroization, further delay the board ready.
4159 /* Adapter failed to init, timeout, status reg
4161 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4162 "0436 Adapter failed to init, "
4163 "timeout, status reg x%x, "
4164 "FW Data: A8 x%x AC x%x\n", status
,
4165 readl(phba
->MBslimaddr
+ 0xa8),
4166 readl(phba
->MBslimaddr
+ 0xac));
4167 phba
->link_state
= LPFC_HBA_ERROR
;
4171 /* Check to see if any errors occurred during init */
4172 if (status
& HS_FFERM
) {
4173 /* ERROR: During chipset initialization */
4174 /* Adapter failed to init, chipset, status reg
4176 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4177 "0437 Adapter failed to init, "
4178 "chipset, status reg x%x, "
4179 "FW Data: A8 x%x AC x%x\n", status
,
4180 readl(phba
->MBslimaddr
+ 0xa8),
4181 readl(phba
->MBslimaddr
+ 0xac));
4182 phba
->link_state
= LPFC_HBA_ERROR
;
4195 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4196 lpfc_sli_brdrestart(phba
);
4198 /* Read the HBA Host Status Register */
4199 if (lpfc_readl(phba
->HSregaddr
, &status
))
4203 /* Check to see if any errors occurred during init */
4204 if (status
& HS_FFERM
) {
4205 /* ERROR: During chipset initialization */
4206 /* Adapter failed to init, chipset, status reg <status> */
4207 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4208 "0438 Adapter failed to init, chipset, "
4210 "FW Data: A8 x%x AC x%x\n", status
,
4211 readl(phba
->MBslimaddr
+ 0xa8),
4212 readl(phba
->MBslimaddr
+ 0xac));
4213 phba
->link_state
= LPFC_HBA_ERROR
;
4217 /* Clear all interrupt enable conditions */
4218 writel(0, phba
->HCregaddr
);
4219 readl(phba
->HCregaddr
); /* flush */
4221 /* setup host attn register */
4222 writel(0xffffffff, phba
->HAregaddr
);
4223 readl(phba
->HAregaddr
); /* flush */
4228 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4230 * This function calculates and returns the number of HBQs required to be
4234 lpfc_sli_hbq_count(void)
4236 return ARRAY_SIZE(lpfc_hbq_defs
);
4240 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4242 * This function adds the number of hbq entries in every HBQ to get
4243 * the total number of hbq entries required for the HBA and returns
4247 lpfc_sli_hbq_entry_count(void)
4249 int hbq_count
= lpfc_sli_hbq_count();
4253 for (i
= 0; i
< hbq_count
; ++i
)
4254 count
+= lpfc_hbq_defs
[i
]->entry_count
;
4259 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4261 * This function calculates amount of memory required for all hbq entries
4262 * to be configured and returns the total memory required.
4265 lpfc_sli_hbq_size(void)
4267 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
4271 * lpfc_sli_hbq_setup - configure and initialize HBQs
4272 * @phba: Pointer to HBA context object.
4274 * This function is called during the SLI initialization to configure
4275 * all the HBQs and post buffers to the HBQ. The caller is not
4276 * required to hold any locks. This function will return zero if successful
4277 * else it will return negative error code.
4280 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
4282 int hbq_count
= lpfc_sli_hbq_count();
4286 uint32_t hbq_entry_index
;
4288 /* Get a Mailbox buffer to setup mailbox
4289 * commands for HBA initialization
4291 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4298 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4299 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4300 phba
->hbq_in_use
= 1;
4302 hbq_entry_index
= 0;
4303 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
4304 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
4305 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
4306 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
4307 phba
->hbqs
[hbqno
].entry_count
=
4308 lpfc_hbq_defs
[hbqno
]->entry_count
;
4309 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
4310 hbq_entry_index
, pmb
);
4311 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
4313 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
4314 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4315 mbxStatus <status>, ring <num> */
4317 lpfc_printf_log(phba
, KERN_ERR
,
4318 LOG_SLI
| LOG_VPORT
,
4319 "1805 Adapter failed to init. "
4320 "Data: x%x x%x x%x\n",
4322 pmbox
->mbxStatus
, hbqno
);
4324 phba
->link_state
= LPFC_HBA_ERROR
;
4325 mempool_free(pmb
, phba
->mbox_mem_pool
);
4329 phba
->hbq_count
= hbq_count
;
4331 mempool_free(pmb
, phba
->mbox_mem_pool
);
4333 /* Initially populate or replenish the HBQs */
4334 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
4335 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
4340 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4341 * @phba: Pointer to HBA context object.
4343 * This function is called during the SLI initialization to configure
4344 * all the HBQs and post buffers to the HBQ. The caller is not
4345 * required to hold any locks. This function will return zero if successful
4346 * else it will return negative error code.
4349 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
4351 phba
->hbq_in_use
= 1;
4352 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
4353 phba
->hbq_count
= 1;
4354 /* Initially populate or replenish the HBQs */
4355 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
4360 * lpfc_sli_config_port - Issue config port mailbox command
4361 * @phba: Pointer to HBA context object.
4362 * @sli_mode: sli mode - 2/3
4364 * This function is called by the sli intialization code path
4365 * to issue config_port mailbox command. This function restarts the
4366 * HBA firmware and issues a config_port mailbox command to configure
4367 * the SLI interface in the sli mode specified by sli_mode
4368 * variable. The caller is not required to hold any locks.
4369 * The function returns 0 if successful, else returns negative error
4373 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
4376 uint32_t resetcount
= 0, rc
= 0, done
= 0;
4378 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4380 phba
->link_state
= LPFC_HBA_ERROR
;
4384 phba
->sli_rev
= sli_mode
;
4385 while (resetcount
< 2 && !done
) {
4386 spin_lock_irq(&phba
->hbalock
);
4387 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4388 spin_unlock_irq(&phba
->hbalock
);
4389 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4390 lpfc_sli_brdrestart(phba
);
4391 rc
= lpfc_sli_chipset_init(phba
);
4395 spin_lock_irq(&phba
->hbalock
);
4396 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4397 spin_unlock_irq(&phba
->hbalock
);
4400 /* Call pre CONFIG_PORT mailbox command initialization. A
4401 * value of 0 means the call was successful. Any other
4402 * nonzero value is a failure, but if ERESTART is returned,
4403 * the driver may reset the HBA and try again.
4405 rc
= lpfc_config_port_prep(phba
);
4406 if (rc
== -ERESTART
) {
4407 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4412 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4413 lpfc_config_port(phba
, pmb
);
4414 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
4415 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
4416 LPFC_SLI3_HBQ_ENABLED
|
4417 LPFC_SLI3_CRP_ENABLED
|
4418 LPFC_SLI3_BG_ENABLED
|
4419 LPFC_SLI3_DSS_ENABLED
);
4420 if (rc
!= MBX_SUCCESS
) {
4421 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4422 "0442 Adapter failed to init, mbxCmd x%x "
4423 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4424 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
4425 spin_lock_irq(&phba
->hbalock
);
4426 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
4427 spin_unlock_irq(&phba
->hbalock
);
4430 /* Allow asynchronous mailbox command to go through */
4431 spin_lock_irq(&phba
->hbalock
);
4432 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4433 spin_unlock_irq(&phba
->hbalock
);
4436 if ((pmb
->u
.mb
.un
.varCfgPort
.casabt
== 1) &&
4437 (pmb
->u
.mb
.un
.varCfgPort
.gasabt
== 0))
4438 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4439 "3110 Port did not grant ASABT\n");
4444 goto do_prep_failed
;
4446 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
4447 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
4449 goto do_prep_failed
;
4451 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
4452 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
4453 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
4454 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
4455 phba
->max_vpi
: phba
->max_vports
;
4459 phba
->fips_level
= 0;
4460 phba
->fips_spec_rev
= 0;
4461 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
4462 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
4463 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
4464 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
4465 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4466 "2850 Security Crypto Active. FIPS x%d "
4468 phba
->fips_level
, phba
->fips_spec_rev
);
4470 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
4471 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4472 "2856 Config Port Security Crypto "
4474 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
4476 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
4477 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
4478 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
4479 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
4481 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
4482 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
4484 if (phba
->cfg_enable_bg
) {
4485 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
4486 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4488 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4489 "0443 Adapter did not grant "
4493 phba
->hbq_get
= NULL
;
4494 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4498 mempool_free(pmb
, phba
->mbox_mem_pool
);
4504 * lpfc_sli_hba_setup - SLI intialization function
4505 * @phba: Pointer to HBA context object.
4507 * This function is the main SLI intialization function. This function
4508 * is called by the HBA intialization code, HBA reset code and HBA
4509 * error attention handler code. Caller is not required to hold any
4510 * locks. This function issues config_port mailbox command to configure
4511 * the SLI, setup iocb rings and HBQ rings. In the end the function
4512 * calls the config_port_post function to issue init_link mailbox
4513 * command and to start the discovery. The function will return zero
4514 * if successful, else it will return negative error code.
4517 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4523 switch (lpfc_sli_mode
) {
4525 if (phba
->cfg_enable_npiv
) {
4526 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4527 "1824 NPIV enabled: Override lpfc_sli_mode "
4528 "parameter (%d) to auto (0).\n",
4538 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4539 "1819 Unrecognized lpfc_sli_mode "
4540 "parameter: %d.\n", lpfc_sli_mode
);
4545 rc
= lpfc_sli_config_port(phba
, mode
);
4547 if (rc
&& lpfc_sli_mode
== 3)
4548 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4549 "1820 Unable to select SLI-3. "
4550 "Not supported by adapter.\n");
4551 if (rc
&& mode
!= 2)
4552 rc
= lpfc_sli_config_port(phba
, 2);
4554 goto lpfc_sli_hba_setup_error
;
4556 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4557 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4558 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4560 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4561 "2709 This device supports "
4562 "Advanced Error Reporting (AER)\n");
4563 spin_lock_irq(&phba
->hbalock
);
4564 phba
->hba_flag
|= HBA_AER_ENABLED
;
4565 spin_unlock_irq(&phba
->hbalock
);
4567 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4568 "2708 This device does not support "
4569 "Advanced Error Reporting (AER): %d\n",
4571 phba
->cfg_aer_support
= 0;
4575 if (phba
->sli_rev
== 3) {
4576 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4577 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4579 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4580 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4581 phba
->sli3_options
= 0;
4584 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4585 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4586 phba
->sli_rev
, phba
->max_vpi
);
4587 rc
= lpfc_sli_ring_map(phba
);
4590 goto lpfc_sli_hba_setup_error
;
4592 /* Initialize VPIs. */
4593 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
4595 * The VPI bitmask and physical ID array are allocated
4596 * and initialized once only - at driver load. A port
4597 * reset doesn't need to reinitialize this memory.
4599 if ((phba
->vpi_bmask
== NULL
) && (phba
->vpi_ids
== NULL
)) {
4600 longs
= (phba
->max_vpi
+ BITS_PER_LONG
) / BITS_PER_LONG
;
4601 phba
->vpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4603 if (!phba
->vpi_bmask
) {
4605 goto lpfc_sli_hba_setup_error
;
4608 phba
->vpi_ids
= kzalloc(
4609 (phba
->max_vpi
+1) * sizeof(uint16_t),
4611 if (!phba
->vpi_ids
) {
4612 kfree(phba
->vpi_bmask
);
4614 goto lpfc_sli_hba_setup_error
;
4616 for (i
= 0; i
< phba
->max_vpi
; i
++)
4617 phba
->vpi_ids
[i
] = i
;
4622 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4623 rc
= lpfc_sli_hbq_setup(phba
);
4625 goto lpfc_sli_hba_setup_error
;
4627 spin_lock_irq(&phba
->hbalock
);
4628 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4629 spin_unlock_irq(&phba
->hbalock
);
4631 rc
= lpfc_config_port_post(phba
);
4633 goto lpfc_sli_hba_setup_error
;
4637 lpfc_sli_hba_setup_error
:
4638 phba
->link_state
= LPFC_HBA_ERROR
;
4639 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4640 "0445 Firmware initialization failed\n");
4645 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4646 * @phba: Pointer to HBA context object.
4647 * @mboxq: mailbox pointer.
4648 * This function issue a dump mailbox command to read config region
4649 * 23 and parse the records in the region and populate driver
4653 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
)
4655 LPFC_MBOXQ_t
*mboxq
;
4656 struct lpfc_dmabuf
*mp
;
4657 struct lpfc_mqe
*mqe
;
4658 uint32_t data_length
;
4661 /* Program the default value of vlan_id and fc_map */
4662 phba
->valid_vlan
= 0;
4663 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4664 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4665 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4667 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4671 mqe
= &mboxq
->u
.mqe
;
4672 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
)) {
4674 goto out_free_mboxq
;
4677 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4678 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4680 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4681 "(%d):2571 Mailbox cmd x%x Status x%x "
4682 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4683 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4684 "CQ: x%x x%x x%x x%x\n",
4685 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4686 bf_get(lpfc_mqe_command
, mqe
),
4687 bf_get(lpfc_mqe_status
, mqe
),
4688 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4689 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4690 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4691 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4692 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4693 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4694 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4695 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4696 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4698 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4699 mboxq
->mcqe
.trailer
);
4702 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4705 goto out_free_mboxq
;
4707 data_length
= mqe
->un
.mb_words
[5];
4708 if (data_length
> DMP_RGN23_SIZE
) {
4709 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4712 goto out_free_mboxq
;
4715 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4716 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4721 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4726 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4727 * @phba: pointer to lpfc hba data structure.
4728 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4729 * @vpd: pointer to the memory to hold resulting port vpd data.
4730 * @vpd_size: On input, the number of bytes allocated to @vpd.
4731 * On output, the number of data bytes in @vpd.
4733 * This routine executes a READ_REV SLI4 mailbox command. In
4734 * addition, this routine gets the port vpd data.
4738 * -ENOMEM - could not allocated memory.
4741 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4742 uint8_t *vpd
, uint32_t *vpd_size
)
4746 struct lpfc_dmabuf
*dmabuf
;
4747 struct lpfc_mqe
*mqe
;
4749 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4754 * Get a DMA buffer for the vpd data resulting from the READ_REV
4757 dma_size
= *vpd_size
;
4758 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4762 if (!dmabuf
->virt
) {
4766 memset(dmabuf
->virt
, 0, dma_size
);
4769 * The SLI4 implementation of READ_REV conflicts at word1,
4770 * bits 31:16 and SLI4 adds vpd functionality not present
4771 * in SLI3. This code corrects the conflicts.
4773 lpfc_read_rev(phba
, mboxq
);
4774 mqe
= &mboxq
->u
.mqe
;
4775 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4776 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4777 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4778 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4779 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4781 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4783 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4784 dmabuf
->virt
, dmabuf
->phys
);
4790 * The available vpd length cannot be bigger than the
4791 * DMA buffer passed to the port. Catch the less than
4792 * case and update the caller's size.
4794 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4795 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4797 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4799 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4800 dmabuf
->virt
, dmabuf
->phys
);
4806 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4807 * @phba: pointer to lpfc hba data structure.
4809 * This routine retrieves SLI4 device physical port name this PCI function
4814 * otherwise - failed to retrieve physical port name
4817 lpfc_sli4_retrieve_pport_name(struct lpfc_hba
*phba
)
4819 LPFC_MBOXQ_t
*mboxq
;
4820 struct lpfc_mbx_get_cntl_attributes
*mbx_cntl_attr
;
4821 struct lpfc_controller_attribute
*cntl_attr
;
4822 struct lpfc_mbx_get_port_name
*get_port_name
;
4823 void *virtaddr
= NULL
;
4824 uint32_t alloclen
, reqlen
;
4825 uint32_t shdr_status
, shdr_add_status
;
4826 union lpfc_sli4_cfg_shdr
*shdr
;
4827 char cport_name
= 0;
4830 /* We assume nothing at this point */
4831 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4832 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_NON
;
4834 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4837 /* obtain link type and link number via READ_CONFIG */
4838 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4839 lpfc_sli4_read_config(phba
);
4840 if (phba
->sli4_hba
.lnk_info
.lnk_dv
== LPFC_LNK_DAT_VAL
)
4841 goto retrieve_ppname
;
4843 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4844 reqlen
= sizeof(struct lpfc_mbx_get_cntl_attributes
);
4845 alloclen
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
4846 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES
, reqlen
,
4847 LPFC_SLI4_MBX_NEMBED
);
4848 if (alloclen
< reqlen
) {
4849 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4850 "3084 Allocated DMA memory size (%d) is "
4851 "less than the requested DMA memory size "
4852 "(%d)\n", alloclen
, reqlen
);
4854 goto out_free_mboxq
;
4856 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4857 virtaddr
= mboxq
->sge_array
->addr
[0];
4858 mbx_cntl_attr
= (struct lpfc_mbx_get_cntl_attributes
*)virtaddr
;
4859 shdr
= &mbx_cntl_attr
->cfg_shdr
;
4860 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
4861 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
4862 if (shdr_status
|| shdr_add_status
|| rc
) {
4863 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
4864 "3085 Mailbox x%x (x%x/x%x) failed, "
4865 "rc:x%x, status:x%x, add_status:x%x\n",
4866 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
4867 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
4868 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
4869 rc
, shdr_status
, shdr_add_status
);
4871 goto out_free_mboxq
;
4873 cntl_attr
= &mbx_cntl_attr
->cntl_attr
;
4874 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_VAL
;
4875 phba
->sli4_hba
.lnk_info
.lnk_tp
=
4876 bf_get(lpfc_cntl_attr_lnk_type
, cntl_attr
);
4877 phba
->sli4_hba
.lnk_info
.lnk_no
=
4878 bf_get(lpfc_cntl_attr_lnk_numb
, cntl_attr
);
4879 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4880 "3086 lnk_type:%d, lnk_numb:%d\n",
4881 phba
->sli4_hba
.lnk_info
.lnk_tp
,
4882 phba
->sli4_hba
.lnk_info
.lnk_no
);
4885 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
4886 LPFC_MBOX_OPCODE_GET_PORT_NAME
,
4887 sizeof(struct lpfc_mbx_get_port_name
) -
4888 sizeof(struct lpfc_sli4_cfg_mhdr
),
4889 LPFC_SLI4_MBX_EMBED
);
4890 get_port_name
= &mboxq
->u
.mqe
.un
.get_port_name
;
4891 shdr
= (union lpfc_sli4_cfg_shdr
*)&get_port_name
->header
.cfg_shdr
;
4892 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
, LPFC_OPCODE_VERSION_1
);
4893 bf_set(lpfc_mbx_get_port_name_lnk_type
, &get_port_name
->u
.request
,
4894 phba
->sli4_hba
.lnk_info
.lnk_tp
);
4895 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4896 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
4897 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
4898 if (shdr_status
|| shdr_add_status
|| rc
) {
4899 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
4900 "3087 Mailbox x%x (x%x/x%x) failed: "
4901 "rc:x%x, status:x%x, add_status:x%x\n",
4902 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
4903 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
4904 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
4905 rc
, shdr_status
, shdr_add_status
);
4907 goto out_free_mboxq
;
4909 switch (phba
->sli4_hba
.lnk_info
.lnk_no
) {
4910 case LPFC_LINK_NUMBER_0
:
4911 cport_name
= bf_get(lpfc_mbx_get_port_name_name0
,
4912 &get_port_name
->u
.response
);
4913 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
4915 case LPFC_LINK_NUMBER_1
:
4916 cport_name
= bf_get(lpfc_mbx_get_port_name_name1
,
4917 &get_port_name
->u
.response
);
4918 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
4920 case LPFC_LINK_NUMBER_2
:
4921 cport_name
= bf_get(lpfc_mbx_get_port_name_name2
,
4922 &get_port_name
->u
.response
);
4923 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
4925 case LPFC_LINK_NUMBER_3
:
4926 cport_name
= bf_get(lpfc_mbx_get_port_name_name3
,
4927 &get_port_name
->u
.response
);
4928 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
4934 if (phba
->sli4_hba
.pport_name_sta
== LPFC_SLI4_PPNAME_GET
) {
4935 phba
->Port
[0] = cport_name
;
4936 phba
->Port
[1] = '\0';
4937 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4938 "3091 SLI get port name: %s\n", phba
->Port
);
4942 if (rc
!= MBX_TIMEOUT
) {
4943 if (bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
) == MBX_SLI4_CONFIG
)
4944 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
4946 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4952 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4953 * @phba: pointer to lpfc hba data structure.
4955 * This routine is called to explicitly arm the SLI4 device's completion and
4959 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4963 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4964 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4966 if (phba
->sli4_hba
.fcp_cq
) {
4968 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4970 } while (++fcp_eqidx
< phba
->cfg_fcp_io_channel
);
4972 if (phba
->sli4_hba
.hba_eq
) {
4973 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
4975 lpfc_sli4_eq_release(phba
->sli4_hba
.hba_eq
[fcp_eqidx
],
4981 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
4982 * @phba: Pointer to HBA context object.
4983 * @type: The resource extent type.
4984 * @extnt_count: buffer to hold port available extent count.
4985 * @extnt_size: buffer to hold element count per extent.
4987 * This function calls the port and retrievs the number of available
4988 * extents and their size for a particular extent type.
4990 * Returns: 0 if successful. Nonzero otherwise.
4993 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
,
4994 uint16_t *extnt_count
, uint16_t *extnt_size
)
4999 struct lpfc_mbx_get_rsrc_extent_info
*rsrc_info
;
5002 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5006 /* Find out how many extents are available for this resource type */
5007 length
= (sizeof(struct lpfc_mbx_get_rsrc_extent_info
) -
5008 sizeof(struct lpfc_sli4_cfg_mhdr
));
5009 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5010 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO
,
5011 length
, LPFC_SLI4_MBX_EMBED
);
5013 /* Send an extents count of 0 - the GET doesn't use it. */
5014 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5015 LPFC_SLI4_MBX_EMBED
);
5021 if (!phba
->sli4_hba
.intr_enable
)
5022 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5024 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5025 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5032 rsrc_info
= &mbox
->u
.mqe
.un
.rsrc_extent_info
;
5033 if (bf_get(lpfc_mbox_hdr_status
,
5034 &rsrc_info
->header
.cfg_shdr
.response
)) {
5035 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5036 "2930 Failed to get resource extents "
5037 "Status 0x%x Add'l Status 0x%x\n",
5038 bf_get(lpfc_mbox_hdr_status
,
5039 &rsrc_info
->header
.cfg_shdr
.response
),
5040 bf_get(lpfc_mbox_hdr_add_status
,
5041 &rsrc_info
->header
.cfg_shdr
.response
));
5046 *extnt_count
= bf_get(lpfc_mbx_get_rsrc_extent_info_cnt
,
5048 *extnt_size
= bf_get(lpfc_mbx_get_rsrc_extent_info_size
,
5051 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5052 "3162 Retrieved extents type-%d from port: count:%d, "
5053 "size:%d\n", type
, *extnt_count
, *extnt_size
);
5056 mempool_free(mbox
, phba
->mbox_mem_pool
);
5061 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5062 * @phba: Pointer to HBA context object.
5063 * @type: The extent type to check.
5065 * This function reads the current available extents from the port and checks
5066 * if the extent count or extent size has changed since the last access.
5067 * Callers use this routine post port reset to understand if there is a
5068 * extent reprovisioning requirement.
5071 * -Error: error indicates problem.
5072 * 1: Extent count or size has changed.
5076 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
)
5078 uint16_t curr_ext_cnt
, rsrc_ext_cnt
;
5079 uint16_t size_diff
, rsrc_ext_size
;
5081 struct lpfc_rsrc_blks
*rsrc_entry
;
5082 struct list_head
*rsrc_blk_list
= NULL
;
5086 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5093 case LPFC_RSC_TYPE_FCOE_RPI
:
5094 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5096 case LPFC_RSC_TYPE_FCOE_VPI
:
5097 rsrc_blk_list
= &phba
->lpfc_vpi_blk_list
;
5099 case LPFC_RSC_TYPE_FCOE_XRI
:
5100 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5102 case LPFC_RSC_TYPE_FCOE_VFI
:
5103 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5109 list_for_each_entry(rsrc_entry
, rsrc_blk_list
, list
) {
5111 if (rsrc_entry
->rsrc_size
!= rsrc_ext_size
)
5115 if (curr_ext_cnt
!= rsrc_ext_cnt
|| size_diff
!= 0)
5122 * lpfc_sli4_cfg_post_extnts -
5123 * @phba: Pointer to HBA context object.
5124 * @extnt_cnt - number of available extents.
5125 * @type - the extent type (rpi, xri, vfi, vpi).
5126 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5127 * @mbox - pointer to the caller's allocated mailbox structure.
5129 * This function executes the extents allocation request. It also
5130 * takes care of the amount of memory needed to allocate or get the
5131 * allocated extents. It is the caller's responsibility to evaluate
5135 * -Error: Error value describes the condition found.
5139 lpfc_sli4_cfg_post_extnts(struct lpfc_hba
*phba
, uint16_t extnt_cnt
,
5140 uint16_t type
, bool *emb
, LPFC_MBOXQ_t
*mbox
)
5145 uint32_t alloc_len
, mbox_tmo
;
5147 /* Calculate the total requested length of the dma memory */
5148 req_len
= extnt_cnt
* sizeof(uint16_t);
5151 * Calculate the size of an embedded mailbox. The uint32_t
5152 * accounts for extents-specific word.
5154 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
5158 * Presume the allocation and response will fit into an embedded
5159 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5161 *emb
= LPFC_SLI4_MBX_EMBED
;
5162 if (req_len
> emb_len
) {
5163 req_len
= extnt_cnt
* sizeof(uint16_t) +
5164 sizeof(union lpfc_sli4_cfg_shdr
) +
5166 *emb
= LPFC_SLI4_MBX_NEMBED
;
5169 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5170 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT
,
5172 if (alloc_len
< req_len
) {
5173 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5174 "2982 Allocated DMA memory size (x%x) is "
5175 "less than the requested DMA memory "
5176 "size (x%x)\n", alloc_len
, req_len
);
5179 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, extnt_cnt
, type
, *emb
);
5183 if (!phba
->sli4_hba
.intr_enable
)
5184 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5186 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5187 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5196 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5197 * @phba: Pointer to HBA context object.
5198 * @type: The resource extent type to allocate.
5200 * This function allocates the number of elements for the specified
5204 lpfc_sli4_alloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5207 uint16_t rsrc_id_cnt
, rsrc_cnt
, rsrc_size
;
5208 uint16_t rsrc_id
, rsrc_start
, j
, k
;
5211 unsigned long longs
;
5212 unsigned long *bmask
;
5213 struct lpfc_rsrc_blks
*rsrc_blks
;
5216 struct lpfc_id_range
*id_array
= NULL
;
5217 void *virtaddr
= NULL
;
5218 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
5219 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
5220 struct list_head
*ext_blk_list
;
5222 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5228 if ((rsrc_cnt
== 0) || (rsrc_size
== 0)) {
5229 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5230 "3009 No available Resource Extents "
5231 "for resource type 0x%x: Count: 0x%x, "
5232 "Size 0x%x\n", type
, rsrc_cnt
,
5237 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_INIT
| LOG_SLI
,
5238 "2903 Post resource extents type-0x%x: "
5239 "count:%d, size %d\n", type
, rsrc_cnt
, rsrc_size
);
5241 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5245 rc
= lpfc_sli4_cfg_post_extnts(phba
, rsrc_cnt
, type
, &emb
, mbox
);
5252 * Figure out where the response is located. Then get local pointers
5253 * to the response data. The port does not guarantee to respond to
5254 * all extents counts request so update the local variable with the
5255 * allocated count from the port.
5257 if (emb
== LPFC_SLI4_MBX_EMBED
) {
5258 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
5259 id_array
= &rsrc_ext
->u
.rsp
.id
[0];
5260 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
5262 virtaddr
= mbox
->sge_array
->addr
[0];
5263 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
5264 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
5265 id_array
= &n_rsrc
->id
;
5268 longs
= ((rsrc_cnt
* rsrc_size
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5269 rsrc_id_cnt
= rsrc_cnt
* rsrc_size
;
5272 * Based on the resource size and count, correct the base and max
5275 length
= sizeof(struct lpfc_rsrc_blks
);
5277 case LPFC_RSC_TYPE_FCOE_RPI
:
5278 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5279 sizeof(unsigned long),
5281 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5285 phba
->sli4_hba
.rpi_ids
= kzalloc(rsrc_id_cnt
*
5288 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5289 kfree(phba
->sli4_hba
.rpi_bmask
);
5295 * The next_rpi was initialized with the maximum available
5296 * count but the port may allocate a smaller number. Catch
5297 * that case and update the next_rpi.
5299 phba
->sli4_hba
.next_rpi
= rsrc_id_cnt
;
5301 /* Initialize local ptrs for common extent processing later. */
5302 bmask
= phba
->sli4_hba
.rpi_bmask
;
5303 ids
= phba
->sli4_hba
.rpi_ids
;
5304 ext_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5306 case LPFC_RSC_TYPE_FCOE_VPI
:
5307 phba
->vpi_bmask
= kzalloc(longs
*
5308 sizeof(unsigned long),
5310 if (unlikely(!phba
->vpi_bmask
)) {
5314 phba
->vpi_ids
= kzalloc(rsrc_id_cnt
*
5317 if (unlikely(!phba
->vpi_ids
)) {
5318 kfree(phba
->vpi_bmask
);
5323 /* Initialize local ptrs for common extent processing later. */
5324 bmask
= phba
->vpi_bmask
;
5325 ids
= phba
->vpi_ids
;
5326 ext_blk_list
= &phba
->lpfc_vpi_blk_list
;
5328 case LPFC_RSC_TYPE_FCOE_XRI
:
5329 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5330 sizeof(unsigned long),
5332 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5336 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5337 phba
->sli4_hba
.xri_ids
= kzalloc(rsrc_id_cnt
*
5340 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5341 kfree(phba
->sli4_hba
.xri_bmask
);
5346 /* Initialize local ptrs for common extent processing later. */
5347 bmask
= phba
->sli4_hba
.xri_bmask
;
5348 ids
= phba
->sli4_hba
.xri_ids
;
5349 ext_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5351 case LPFC_RSC_TYPE_FCOE_VFI
:
5352 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5353 sizeof(unsigned long),
5355 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5359 phba
->sli4_hba
.vfi_ids
= kzalloc(rsrc_id_cnt
*
5362 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5363 kfree(phba
->sli4_hba
.vfi_bmask
);
5368 /* Initialize local ptrs for common extent processing later. */
5369 bmask
= phba
->sli4_hba
.vfi_bmask
;
5370 ids
= phba
->sli4_hba
.vfi_ids
;
5371 ext_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5374 /* Unsupported Opcode. Fail call. */
5378 ext_blk_list
= NULL
;
5383 * Complete initializing the extent configuration with the
5384 * allocated ids assigned to this function. The bitmask serves
5385 * as an index into the array and manages the available ids. The
5386 * array just stores the ids communicated to the port via the wqes.
5388 for (i
= 0, j
= 0, k
= 0; i
< rsrc_cnt
; i
++) {
5390 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_0
,
5393 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_1
,
5396 rsrc_blks
= kzalloc(length
, GFP_KERNEL
);
5397 if (unlikely(!rsrc_blks
)) {
5403 rsrc_blks
->rsrc_start
= rsrc_id
;
5404 rsrc_blks
->rsrc_size
= rsrc_size
;
5405 list_add_tail(&rsrc_blks
->list
, ext_blk_list
);
5406 rsrc_start
= rsrc_id
;
5407 if ((type
== LPFC_RSC_TYPE_FCOE_XRI
) && (j
== 0))
5408 phba
->sli4_hba
.scsi_xri_start
= rsrc_start
+
5409 lpfc_sli4_get_els_iocb_cnt(phba
);
5411 while (rsrc_id
< (rsrc_start
+ rsrc_size
)) {
5416 /* Entire word processed. Get next word.*/
5421 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
5426 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5427 * @phba: Pointer to HBA context object.
5428 * @type: the extent's type.
5430 * This function deallocates all extents of a particular resource type.
5431 * SLI4 does not allow for deallocating a particular extent range. It
5432 * is the caller's responsibility to release all kernel memory resources.
5435 lpfc_sli4_dealloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5438 uint32_t length
, mbox_tmo
= 0;
5440 struct lpfc_mbx_dealloc_rsrc_extents
*dealloc_rsrc
;
5441 struct lpfc_rsrc_blks
*rsrc_blk
, *rsrc_blk_next
;
5443 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5448 * This function sends an embedded mailbox because it only sends the
5449 * the resource type. All extents of this type are released by the
5452 length
= (sizeof(struct lpfc_mbx_dealloc_rsrc_extents
) -
5453 sizeof(struct lpfc_sli4_cfg_mhdr
));
5454 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5455 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT
,
5456 length
, LPFC_SLI4_MBX_EMBED
);
5458 /* Send an extents count of 0 - the dealloc doesn't use it. */
5459 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5460 LPFC_SLI4_MBX_EMBED
);
5465 if (!phba
->sli4_hba
.intr_enable
)
5466 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5468 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5469 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5476 dealloc_rsrc
= &mbox
->u
.mqe
.un
.dealloc_rsrc_extents
;
5477 if (bf_get(lpfc_mbox_hdr_status
,
5478 &dealloc_rsrc
->header
.cfg_shdr
.response
)) {
5479 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5480 "2919 Failed to release resource extents "
5481 "for type %d - Status 0x%x Add'l Status 0x%x. "
5482 "Resource memory not released.\n",
5484 bf_get(lpfc_mbox_hdr_status
,
5485 &dealloc_rsrc
->header
.cfg_shdr
.response
),
5486 bf_get(lpfc_mbox_hdr_add_status
,
5487 &dealloc_rsrc
->header
.cfg_shdr
.response
));
5492 /* Release kernel memory resources for the specific type. */
5494 case LPFC_RSC_TYPE_FCOE_VPI
:
5495 kfree(phba
->vpi_bmask
);
5496 kfree(phba
->vpi_ids
);
5497 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5498 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5499 &phba
->lpfc_vpi_blk_list
, list
) {
5500 list_del_init(&rsrc_blk
->list
);
5503 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5505 case LPFC_RSC_TYPE_FCOE_XRI
:
5506 kfree(phba
->sli4_hba
.xri_bmask
);
5507 kfree(phba
->sli4_hba
.xri_ids
);
5508 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5509 &phba
->sli4_hba
.lpfc_xri_blk_list
, list
) {
5510 list_del_init(&rsrc_blk
->list
);
5514 case LPFC_RSC_TYPE_FCOE_VFI
:
5515 kfree(phba
->sli4_hba
.vfi_bmask
);
5516 kfree(phba
->sli4_hba
.vfi_ids
);
5517 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5518 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5519 &phba
->sli4_hba
.lpfc_vfi_blk_list
, list
) {
5520 list_del_init(&rsrc_blk
->list
);
5524 case LPFC_RSC_TYPE_FCOE_RPI
:
5525 /* RPI bitmask and physical id array are cleaned up earlier. */
5526 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5527 &phba
->sli4_hba
.lpfc_rpi_blk_list
, list
) {
5528 list_del_init(&rsrc_blk
->list
);
5536 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5539 mempool_free(mbox
, phba
->mbox_mem_pool
);
5544 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5545 * @phba: Pointer to HBA context object.
5547 * This function allocates all SLI4 resource identifiers.
5550 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba
*phba
)
5552 int i
, rc
, error
= 0;
5553 uint16_t count
, base
;
5554 unsigned long longs
;
5556 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5557 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5558 if (phba
->sli4_hba
.extents_in_use
) {
5560 * The port supports resource extents. The XRI, VPI, VFI, RPI
5561 * resource extent count must be read and allocated before
5562 * provisioning the resource id arrays.
5564 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5565 LPFC_IDX_RSRC_RDY
) {
5567 * Extent-based resources are set - the driver could
5568 * be in a port reset. Figure out if any corrective
5569 * actions need to be taken.
5571 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5572 LPFC_RSC_TYPE_FCOE_VFI
);
5575 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5576 LPFC_RSC_TYPE_FCOE_VPI
);
5579 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5580 LPFC_RSC_TYPE_FCOE_XRI
);
5583 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5584 LPFC_RSC_TYPE_FCOE_RPI
);
5589 * It's possible that the number of resources
5590 * provided to this port instance changed between
5591 * resets. Detect this condition and reallocate
5592 * resources. Otherwise, there is no action.
5595 lpfc_printf_log(phba
, KERN_INFO
,
5596 LOG_MBOX
| LOG_INIT
,
5597 "2931 Detected extent resource "
5598 "change. Reallocating all "
5600 rc
= lpfc_sli4_dealloc_extent(phba
,
5601 LPFC_RSC_TYPE_FCOE_VFI
);
5602 rc
= lpfc_sli4_dealloc_extent(phba
,
5603 LPFC_RSC_TYPE_FCOE_VPI
);
5604 rc
= lpfc_sli4_dealloc_extent(phba
,
5605 LPFC_RSC_TYPE_FCOE_XRI
);
5606 rc
= lpfc_sli4_dealloc_extent(phba
,
5607 LPFC_RSC_TYPE_FCOE_RPI
);
5612 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5616 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5620 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5624 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5627 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5632 * The port does not support resource extents. The XRI, VPI,
5633 * VFI, RPI resource ids were determined from READ_CONFIG.
5634 * Just allocate the bitmasks and provision the resource id
5635 * arrays. If a port reset is active, the resources don't
5636 * need any action - just exit.
5638 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5639 LPFC_IDX_RSRC_RDY
) {
5640 lpfc_sli4_dealloc_resource_identifiers(phba
);
5641 lpfc_sli4_remove_rpis(phba
);
5644 count
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5646 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5647 "3279 Invalid provisioning of "
5652 base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5653 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5654 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5655 sizeof(unsigned long),
5657 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5661 phba
->sli4_hba
.rpi_ids
= kzalloc(count
*
5664 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5666 goto free_rpi_bmask
;
5669 for (i
= 0; i
< count
; i
++)
5670 phba
->sli4_hba
.rpi_ids
[i
] = base
+ i
;
5673 count
= phba
->sli4_hba
.max_cfg_param
.max_vpi
;
5675 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5676 "3280 Invalid provisioning of "
5681 base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5682 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5683 phba
->vpi_bmask
= kzalloc(longs
*
5684 sizeof(unsigned long),
5686 if (unlikely(!phba
->vpi_bmask
)) {
5690 phba
->vpi_ids
= kzalloc(count
*
5693 if (unlikely(!phba
->vpi_ids
)) {
5695 goto free_vpi_bmask
;
5698 for (i
= 0; i
< count
; i
++)
5699 phba
->vpi_ids
[i
] = base
+ i
;
5702 count
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
5704 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5705 "3281 Invalid provisioning of "
5710 base
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5711 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5712 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5713 sizeof(unsigned long),
5715 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5719 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5720 phba
->sli4_hba
.xri_ids
= kzalloc(count
*
5723 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5725 goto free_xri_bmask
;
5728 for (i
= 0; i
< count
; i
++)
5729 phba
->sli4_hba
.xri_ids
[i
] = base
+ i
;
5732 count
= phba
->sli4_hba
.max_cfg_param
.max_vfi
;
5734 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5735 "3282 Invalid provisioning of "
5740 base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5741 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5742 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5743 sizeof(unsigned long),
5745 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5749 phba
->sli4_hba
.vfi_ids
= kzalloc(count
*
5752 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5754 goto free_vfi_bmask
;
5757 for (i
= 0; i
< count
; i
++)
5758 phba
->sli4_hba
.vfi_ids
[i
] = base
+ i
;
5761 * Mark all resources ready. An HBA reset doesn't need
5762 * to reset the initialization.
5764 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5770 kfree(phba
->sli4_hba
.vfi_bmask
);
5772 kfree(phba
->sli4_hba
.xri_ids
);
5774 kfree(phba
->sli4_hba
.xri_bmask
);
5776 kfree(phba
->vpi_ids
);
5778 kfree(phba
->vpi_bmask
);
5780 kfree(phba
->sli4_hba
.rpi_ids
);
5782 kfree(phba
->sli4_hba
.rpi_bmask
);
5788 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5789 * @phba: Pointer to HBA context object.
5791 * This function allocates the number of elements for the specified
5795 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba
*phba
)
5797 if (phba
->sli4_hba
.extents_in_use
) {
5798 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5799 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5800 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5801 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5803 kfree(phba
->vpi_bmask
);
5804 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5805 kfree(phba
->vpi_ids
);
5806 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5807 kfree(phba
->sli4_hba
.xri_bmask
);
5808 kfree(phba
->sli4_hba
.xri_ids
);
5809 kfree(phba
->sli4_hba
.vfi_bmask
);
5810 kfree(phba
->sli4_hba
.vfi_ids
);
5811 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5812 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5819 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
5820 * @phba: Pointer to HBA context object.
5821 * @type: The resource extent type.
5822 * @extnt_count: buffer to hold port extent count response
5823 * @extnt_size: buffer to hold port extent size response.
5825 * This function calls the port to read the host allocated extents
5826 * for a particular type.
5829 lpfc_sli4_get_allocated_extnts(struct lpfc_hba
*phba
, uint16_t type
,
5830 uint16_t *extnt_cnt
, uint16_t *extnt_size
)
5834 uint16_t curr_blks
= 0;
5835 uint32_t req_len
, emb_len
;
5836 uint32_t alloc_len
, mbox_tmo
;
5837 struct list_head
*blk_list_head
;
5838 struct lpfc_rsrc_blks
*rsrc_blk
;
5840 void *virtaddr
= NULL
;
5841 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
5842 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
5843 union lpfc_sli4_cfg_shdr
*shdr
;
5846 case LPFC_RSC_TYPE_FCOE_VPI
:
5847 blk_list_head
= &phba
->lpfc_vpi_blk_list
;
5849 case LPFC_RSC_TYPE_FCOE_XRI
:
5850 blk_list_head
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5852 case LPFC_RSC_TYPE_FCOE_VFI
:
5853 blk_list_head
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5855 case LPFC_RSC_TYPE_FCOE_RPI
:
5856 blk_list_head
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5862 /* Count the number of extents currently allocatd for this type. */
5863 list_for_each_entry(rsrc_blk
, blk_list_head
, list
) {
5864 if (curr_blks
== 0) {
5866 * The GET_ALLOCATED mailbox does not return the size,
5867 * just the count. The size should be just the size
5868 * stored in the current allocated block and all sizes
5869 * for an extent type are the same so set the return
5872 *extnt_size
= rsrc_blk
->rsrc_size
;
5877 /* Calculate the total requested length of the dma memory. */
5878 req_len
= curr_blks
* sizeof(uint16_t);
5881 * Calculate the size of an embedded mailbox. The uint32_t
5882 * accounts for extents-specific word.
5884 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
5888 * Presume the allocation and response will fit into an embedded
5889 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5891 emb
= LPFC_SLI4_MBX_EMBED
;
5893 if (req_len
> emb_len
) {
5894 req_len
= curr_blks
* sizeof(uint16_t) +
5895 sizeof(union lpfc_sli4_cfg_shdr
) +
5897 emb
= LPFC_SLI4_MBX_NEMBED
;
5900 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5903 memset(mbox
, 0, sizeof(LPFC_MBOXQ_t
));
5905 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5906 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT
,
5908 if (alloc_len
< req_len
) {
5909 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5910 "2983 Allocated DMA memory size (x%x) is "
5911 "less than the requested DMA memory "
5912 "size (x%x)\n", alloc_len
, req_len
);
5916 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, curr_blks
, type
, emb
);
5922 if (!phba
->sli4_hba
.intr_enable
)
5923 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5925 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5926 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5935 * Figure out where the response is located. Then get local pointers
5936 * to the response data. The port does not guarantee to respond to
5937 * all extents counts request so update the local variable with the
5938 * allocated count from the port.
5940 if (emb
== LPFC_SLI4_MBX_EMBED
) {
5941 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
5942 shdr
= &rsrc_ext
->header
.cfg_shdr
;
5943 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
5945 virtaddr
= mbox
->sge_array
->addr
[0];
5946 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
5947 shdr
= &n_rsrc
->cfg_shdr
;
5948 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
5951 if (bf_get(lpfc_mbox_hdr_status
, &shdr
->response
)) {
5952 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5953 "2984 Failed to read allocated resources "
5954 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
5956 bf_get(lpfc_mbox_hdr_status
, &shdr
->response
),
5957 bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
));
5962 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
5967 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
5968 * @phba: pointer to lpfc hba data structure.
5970 * This routine walks the list of els buffers that have been allocated and
5971 * repost them to the port by using SGL block post. This is needed after a
5972 * pci_function_reset/warm_start or start. It attempts to construct blocks
5973 * of els buffer sgls which contains contiguous xris and uses the non-embedded
5974 * SGL block post mailbox commands to post them to the port. For single els
5975 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
5976 * mailbox command for posting.
5978 * Returns: 0 = success, non-zero failure.
5981 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba
*phba
)
5983 struct lpfc_sglq
*sglq_entry
= NULL
;
5984 struct lpfc_sglq
*sglq_entry_next
= NULL
;
5985 struct lpfc_sglq
*sglq_entry_first
= NULL
;
5986 int status
, total_cnt
, post_cnt
= 0, num_posted
= 0, block_cnt
= 0;
5987 int last_xritag
= NO_XRI
;
5988 LIST_HEAD(prep_sgl_list
);
5989 LIST_HEAD(blck_sgl_list
);
5990 LIST_HEAD(allc_sgl_list
);
5991 LIST_HEAD(post_sgl_list
);
5992 LIST_HEAD(free_sgl_list
);
5994 spin_lock_irq(&phba
->hbalock
);
5995 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &allc_sgl_list
);
5996 spin_unlock_irq(&phba
->hbalock
);
5998 total_cnt
= phba
->sli4_hba
.els_xri_cnt
;
5999 list_for_each_entry_safe(sglq_entry
, sglq_entry_next
,
6000 &allc_sgl_list
, list
) {
6001 list_del_init(&sglq_entry
->list
);
6003 if ((last_xritag
!= NO_XRI
) &&
6004 (sglq_entry
->sli4_xritag
!= last_xritag
+ 1)) {
6005 /* a hole in xri block, form a sgl posting block */
6006 list_splice_init(&prep_sgl_list
, &blck_sgl_list
);
6007 post_cnt
= block_cnt
- 1;
6008 /* prepare list for next posting block */
6009 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6012 /* prepare list for next posting block */
6013 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6014 /* enough sgls for non-embed sgl mbox command */
6015 if (block_cnt
== LPFC_NEMBED_MBOX_SGL_CNT
) {
6016 list_splice_init(&prep_sgl_list
,
6018 post_cnt
= block_cnt
;
6024 /* keep track of last sgl's xritag */
6025 last_xritag
= sglq_entry
->sli4_xritag
;
6027 /* end of repost sgl list condition for els buffers */
6028 if (num_posted
== phba
->sli4_hba
.els_xri_cnt
) {
6029 if (post_cnt
== 0) {
6030 list_splice_init(&prep_sgl_list
,
6032 post_cnt
= block_cnt
;
6033 } else if (block_cnt
== 1) {
6034 status
= lpfc_sli4_post_sgl(phba
,
6035 sglq_entry
->phys
, 0,
6036 sglq_entry
->sli4_xritag
);
6038 /* successful, put sgl to posted list */
6039 list_add_tail(&sglq_entry
->list
,
6042 /* Failure, put sgl to free list */
6043 lpfc_printf_log(phba
, KERN_WARNING
,
6045 "3159 Failed to post els "
6046 "sgl, xritag:x%x\n",
6047 sglq_entry
->sli4_xritag
);
6048 list_add_tail(&sglq_entry
->list
,
6055 /* continue until a nembed page worth of sgls */
6059 /* post the els buffer list sgls as a block */
6060 status
= lpfc_sli4_post_els_sgl_list(phba
, &blck_sgl_list
,
6064 /* success, put sgl list to posted sgl list */
6065 list_splice_init(&blck_sgl_list
, &post_sgl_list
);
6067 /* Failure, put sgl list to free sgl list */
6068 sglq_entry_first
= list_first_entry(&blck_sgl_list
,
6071 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
6072 "3160 Failed to post els sgl-list, "
6074 sglq_entry_first
->sli4_xritag
,
6075 (sglq_entry_first
->sli4_xritag
+
6077 list_splice_init(&blck_sgl_list
, &free_sgl_list
);
6078 total_cnt
-= post_cnt
;
6081 /* don't reset xirtag due to hole in xri block */
6083 last_xritag
= NO_XRI
;
6085 /* reset els sgl post count for next round of posting */
6088 /* update the number of XRIs posted for ELS */
6089 phba
->sli4_hba
.els_xri_cnt
= total_cnt
;
6091 /* free the els sgls failed to post */
6092 lpfc_free_sgl_list(phba
, &free_sgl_list
);
6094 /* push els sgls posted to the availble list */
6095 if (!list_empty(&post_sgl_list
)) {
6096 spin_lock_irq(&phba
->hbalock
);
6097 list_splice_init(&post_sgl_list
,
6098 &phba
->sli4_hba
.lpfc_sgl_list
);
6099 spin_unlock_irq(&phba
->hbalock
);
6101 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6102 "3161 Failure to post els sgl to port.\n");
6109 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6110 * @phba: Pointer to HBA context object.
6112 * This function is the main SLI4 device intialization PCI function. This
6113 * function is called by the HBA intialization code, HBA reset code and
6114 * HBA error attention handler code. Caller is not required to hold any
6118 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
6121 LPFC_MBOXQ_t
*mboxq
;
6122 struct lpfc_mqe
*mqe
;
6125 uint32_t ftr_rsp
= 0;
6126 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
6127 struct lpfc_vport
*vport
= phba
->pport
;
6128 struct lpfc_dmabuf
*mp
;
6130 /* Perform a PCI function reset to start from clean */
6131 rc
= lpfc_pci_function_reset(phba
);
6135 /* Check the HBA Host Status Register for readyness */
6136 rc
= lpfc_sli4_post_status_check(phba
);
6140 spin_lock_irq(&phba
->hbalock
);
6141 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
6142 spin_unlock_irq(&phba
->hbalock
);
6146 * Allocate a single mailbox container for initializing the
6149 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6153 /* Issue READ_REV to collect vpd and FW information. */
6154 vpd_size
= SLI4_PAGE_SIZE
;
6155 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
6161 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
6166 mqe
= &mboxq
->u
.mqe
;
6167 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
6168 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
6169 phba
->hba_flag
|= HBA_FCOE_MODE
;
6171 phba
->hba_flag
&= ~HBA_FCOE_MODE
;
6173 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
6175 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
6177 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
6179 phba
->hba_flag
&= ~HBA_FCP_IOQ_FLUSH
;
6181 if (phba
->sli_rev
!= LPFC_SLI_REV4
) {
6182 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6183 "0376 READ_REV Error. SLI Level %d "
6184 "FCoE enabled %d\n",
6185 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_MODE
);
6192 * Continue initialization with default values even if driver failed
6193 * to read FCoE param config regions, only read parameters if the
6196 if (phba
->hba_flag
& HBA_FCOE_MODE
&&
6197 lpfc_sli4_read_fcoe_params(phba
))
6198 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_INIT
,
6199 "2570 Failed to read FCoE parameters\n");
6202 * Retrieve sli4 device physical port name, failure of doing it
6203 * is considered as non-fatal.
6205 rc
= lpfc_sli4_retrieve_pport_name(phba
);
6207 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6208 "3080 Successful retrieving SLI4 device "
6209 "physical port name: %s.\n", phba
->Port
);
6212 * Evaluate the read rev and vpd data. Populate the driver
6213 * state with the results. If this routine fails, the failure
6214 * is not fatal as the driver will use generic values.
6216 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
6217 if (unlikely(!rc
)) {
6218 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6219 "0377 Error %d parsing vpd. "
6220 "Using defaults.\n", rc
);
6225 /* Save information as VPD data */
6226 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
6227 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
6228 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
6229 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
6231 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
6233 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
6235 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
6237 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6238 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
6239 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
6240 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
6241 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6242 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
6243 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6244 "(%d):0380 READ_REV Status x%x "
6245 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6246 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
6247 bf_get(lpfc_mqe_status
, mqe
),
6248 phba
->vpd
.rev
.opFwName
,
6249 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
6250 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
6253 * Discover the port's supported feature set and match it against the
6256 lpfc_request_features(phba
, mboxq
);
6257 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6264 * The port must support FCP initiator mode as this is the
6265 * only mode running in the host.
6267 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
6268 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6269 "0378 No support for fcpi mode.\n");
6272 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh
, &mqe
->un
.req_ftrs
))
6273 phba
->sli3_options
|= LPFC_SLI4_PERFH_ENABLED
;
6275 phba
->sli3_options
&= ~LPFC_SLI4_PERFH_ENABLED
;
6277 * If the port cannot support the host's requested features
6278 * then turn off the global config parameters to disable the
6279 * feature in the driver. This is not a fatal error.
6281 phba
->sli3_options
&= ~LPFC_SLI3_BG_ENABLED
;
6282 if (phba
->cfg_enable_bg
) {
6283 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
))
6284 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
6289 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
6290 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6294 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6295 "0379 Feature Mismatch Data: x%08x %08x "
6296 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
6297 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
6298 phba
->cfg_enable_npiv
, phba
->max_vpi
);
6299 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
6300 phba
->cfg_enable_bg
= 0;
6301 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6302 phba
->cfg_enable_npiv
= 0;
6305 /* These SLI3 features are assumed in SLI4 */
6306 spin_lock_irq(&phba
->hbalock
);
6307 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
6308 spin_unlock_irq(&phba
->hbalock
);
6311 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6312 * calls depends on these resources to complete port setup.
6314 rc
= lpfc_sli4_alloc_resource_identifiers(phba
);
6316 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6317 "2920 Failed to alloc Resource IDs "
6322 /* Read the port's service parameters. */
6323 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
6325 phba
->link_state
= LPFC_HBA_ERROR
;
6330 mboxq
->vport
= vport
;
6331 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6332 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
6333 if (rc
== MBX_SUCCESS
) {
6334 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
6339 * This memory was allocated by the lpfc_read_sparam routine. Release
6340 * it to the mbuf pool.
6342 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
6344 mboxq
->context1
= NULL
;
6346 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6347 "0382 READ_SPARAM command failed "
6348 "status %d, mbxStatus x%x\n",
6349 rc
, bf_get(lpfc_mqe_status
, mqe
));
6350 phba
->link_state
= LPFC_HBA_ERROR
;
6355 lpfc_update_vport_wwn(vport
);
6357 /* Update the fc_host data structures with new wwn. */
6358 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
6359 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
6361 /* update host els and scsi xri-sgl sizes and mappings */
6362 rc
= lpfc_sli4_xri_sgl_update(phba
);
6364 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6365 "1400 Failed to update xri-sgl size and "
6366 "mapping: %d\n", rc
);
6370 /* register the els sgl pool to the port */
6371 rc
= lpfc_sli4_repost_els_sgl_list(phba
);
6373 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6374 "0582 Error %d during els sgl post "
6380 /* register the allocated scsi sgl pool to the port */
6381 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
6383 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6384 "0383 Error %d during scsi sgl post "
6386 /* Some Scsi buffers were moved to the abort scsi list */
6387 /* A pci function reset will repost them */
6392 /* Post the rpi header region to the device. */
6393 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
6395 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6396 "0393 Error %d during rpi post operation\n",
6401 lpfc_sli4_node_prep(phba
);
6403 /* Create all the SLI4 queues */
6404 rc
= lpfc_sli4_queue_create(phba
);
6406 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6407 "3089 Failed to allocate queues\n");
6409 goto out_stop_timers
;
6411 /* Set up all the queues to the device */
6412 rc
= lpfc_sli4_queue_setup(phba
);
6414 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6415 "0381 Error %d during queue setup.\n ", rc
);
6416 goto out_destroy_queue
;
6419 /* Arm the CQs and then EQs on device */
6420 lpfc_sli4_arm_cqeq_intr(phba
);
6422 /* Indicate device interrupt mode */
6423 phba
->sli4_hba
.intr_enable
= 1;
6425 /* Allow asynchronous mailbox command to go through */
6426 spin_lock_irq(&phba
->hbalock
);
6427 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
6428 spin_unlock_irq(&phba
->hbalock
);
6430 /* Post receive buffers to the device */
6431 lpfc_sli4_rb_setup(phba
);
6433 /* Reset HBA FCF states after HBA reset */
6434 phba
->fcf
.fcf_flag
= 0;
6435 phba
->fcf
.current_rec
.flag
= 0;
6437 /* Start the ELS watchdog timer */
6438 mod_timer(&vport
->els_tmofunc
,
6439 jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
* 2)));
6441 /* Start heart beat timer */
6442 mod_timer(&phba
->hb_tmofunc
,
6443 jiffies
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
6444 phba
->hb_outstanding
= 0;
6445 phba
->last_completion_time
= jiffies
;
6447 /* Start error attention (ERATT) polling timer */
6448 mod_timer(&phba
->eratt_poll
,
6449 jiffies
+ msecs_to_jiffies(1000 * LPFC_ERATT_POLL_INTERVAL
));
6451 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6452 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
6453 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
6455 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6456 "2829 This device supports "
6457 "Advanced Error Reporting (AER)\n");
6458 spin_lock_irq(&phba
->hbalock
);
6459 phba
->hba_flag
|= HBA_AER_ENABLED
;
6460 spin_unlock_irq(&phba
->hbalock
);
6462 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6463 "2830 This device does not support "
6464 "Advanced Error Reporting (AER)\n");
6465 phba
->cfg_aer_support
= 0;
6470 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
6472 * The FC Port needs to register FCFI (index 0)
6474 lpfc_reg_fcfi(phba
, mboxq
);
6475 mboxq
->vport
= phba
->pport
;
6476 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6477 if (rc
!= MBX_SUCCESS
)
6478 goto out_unset_queue
;
6480 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
,
6481 &mboxq
->u
.mqe
.un
.reg_fcfi
);
6483 /* Check if the port is configured to be disabled */
6484 lpfc_sli_read_link_ste(phba
);
6488 * The port is ready, set the host's link state to LINK_DOWN
6489 * in preparation for link interrupts.
6491 spin_lock_irq(&phba
->hbalock
);
6492 phba
->link_state
= LPFC_LINK_DOWN
;
6493 spin_unlock_irq(&phba
->hbalock
);
6494 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) &&
6495 (phba
->hba_flag
& LINK_DISABLED
)) {
6496 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6497 "3103 Adapter Link is disabled.\n");
6498 lpfc_down_link(phba
, mboxq
);
6499 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6500 if (rc
!= MBX_SUCCESS
) {
6501 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6502 "3104 Adapter failed to issue "
6503 "DOWN_LINK mbox cmd, rc:x%x\n", rc
);
6504 goto out_unset_queue
;
6506 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
6507 /* don't perform init_link on SLI4 FC port loopback test */
6508 if (!(phba
->link_flag
& LS_LOOPBACK_MODE
)) {
6509 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
6511 goto out_unset_queue
;
6514 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6517 /* Unset all the queues set up in this routine when error out */
6518 lpfc_sli4_queue_unset(phba
);
6520 lpfc_sli4_queue_destroy(phba
);
6522 lpfc_stop_hba_timers(phba
);
6524 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6529 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6530 * @ptr: context object - pointer to hba structure.
6532 * This is the callback function for mailbox timer. The mailbox
6533 * timer is armed when a new mailbox command is issued and the timer
6534 * is deleted when the mailbox complete. The function is called by
6535 * the kernel timer code when a mailbox does not complete within
6536 * expected time. This function wakes up the worker thread to
6537 * process the mailbox timeout and returns. All the processing is
6538 * done by the worker thread function lpfc_mbox_timeout_handler.
6541 lpfc_mbox_timeout(unsigned long ptr
)
6543 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
6544 unsigned long iflag
;
6545 uint32_t tmo_posted
;
6547 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
6548 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
6550 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
6551 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
6554 lpfc_worker_wake_up(phba
);
6560 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6561 * @phba: Pointer to HBA context object.
6563 * This function is called from worker thread when a mailbox command times out.
6564 * The caller is not required to hold any locks. This function will reset the
6565 * HBA and recover all the pending commands.
6568 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
6570 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
6571 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
6572 struct lpfc_sli
*psli
= &phba
->sli
;
6573 struct lpfc_sli_ring
*pring
;
6575 /* Check the pmbox pointer first. There is a race condition
6576 * between the mbox timeout handler getting executed in the
6577 * worklist and the mailbox actually completing. When this
6578 * race condition occurs, the mbox_active will be NULL.
6580 spin_lock_irq(&phba
->hbalock
);
6581 if (pmbox
== NULL
) {
6582 lpfc_printf_log(phba
, KERN_WARNING
,
6584 "0353 Active Mailbox cleared - mailbox timeout "
6586 spin_unlock_irq(&phba
->hbalock
);
6590 /* Mbox cmd <mbxCommand> timeout */
6591 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6592 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6594 phba
->pport
->port_state
,
6596 phba
->sli
.mbox_active
);
6597 spin_unlock_irq(&phba
->hbalock
);
6599 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6600 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6601 * it to fail all outstanding SCSI IO.
6603 spin_lock_irq(&phba
->pport
->work_port_lock
);
6604 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6605 spin_unlock_irq(&phba
->pport
->work_port_lock
);
6606 spin_lock_irq(&phba
->hbalock
);
6607 phba
->link_state
= LPFC_LINK_UNKNOWN
;
6608 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
6609 spin_unlock_irq(&phba
->hbalock
);
6611 pring
= &psli
->ring
[psli
->fcp_ring
];
6612 lpfc_sli_abort_iocb_ring(phba
, pring
);
6614 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6615 "0345 Resetting board due to mailbox timeout\n");
6617 /* Reset the HBA device */
6618 lpfc_reset_hba(phba
);
6622 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6623 * @phba: Pointer to HBA context object.
6624 * @pmbox: Pointer to mailbox object.
6625 * @flag: Flag indicating how the mailbox need to be processed.
6627 * This function is called by discovery code and HBA management code
6628 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6629 * function gets the hbalock to protect the data structures.
6630 * The mailbox command can be submitted in polling mode, in which case
6631 * this function will wait in a polling loop for the completion of the
6633 * If the mailbox is submitted in no_wait mode (not polling) the
6634 * function will submit the command and returns immediately without waiting
6635 * for the mailbox completion. The no_wait is supported only when HBA
6636 * is in SLI2/SLI3 mode - interrupts are enabled.
6637 * The SLI interface allows only one mailbox pending at a time. If the
6638 * mailbox is issued in polling mode and there is already a mailbox
6639 * pending, then the function will return an error. If the mailbox is issued
6640 * in NO_WAIT mode and there is a mailbox pending already, the function
6641 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6642 * The sli layer owns the mailbox object until the completion of mailbox
6643 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6644 * return codes the caller owns the mailbox command after the return of
6648 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
6652 struct lpfc_sli
*psli
= &phba
->sli
;
6653 uint32_t status
, evtctr
;
6654 uint32_t ha_copy
, hc_copy
;
6656 unsigned long timeout
;
6657 unsigned long drvr_flag
= 0;
6658 uint32_t word0
, ldata
;
6659 void __iomem
*to_slim
;
6660 int processing_queue
= 0;
6662 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
6664 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6665 /* processing mbox queue from intr_handler */
6666 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
6667 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6670 processing_queue
= 1;
6671 pmbox
= lpfc_mbox_get(phba
);
6673 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6678 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
6679 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
6681 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6682 lpfc_printf_log(phba
, KERN_ERR
,
6683 LOG_MBOX
| LOG_VPORT
,
6684 "1806 Mbox x%x failed. No vport\n",
6685 pmbox
->u
.mb
.mbxCommand
);
6687 goto out_not_finished
;
6691 /* If the PCI channel is in offline state, do not post mbox. */
6692 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
6693 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6694 goto out_not_finished
;
6697 /* If HBA has a deferred error attention, fail the iocb. */
6698 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
6699 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6700 goto out_not_finished
;
6706 status
= MBX_SUCCESS
;
6708 if (phba
->link_state
== LPFC_HBA_ERROR
) {
6709 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6711 /* Mbox command <mbxCommand> cannot issue */
6712 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6713 "(%d):0311 Mailbox command x%x cannot "
6714 "issue Data: x%x x%x\n",
6715 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6716 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
6717 goto out_not_finished
;
6720 if (mbx
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
) {
6721 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
) ||
6722 !(hc_copy
& HC_MBINT_ENA
)) {
6723 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6724 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6725 "(%d):2528 Mailbox command x%x cannot "
6726 "issue Data: x%x x%x\n",
6727 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6728 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
6729 goto out_not_finished
;
6733 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
6734 /* Polling for a mbox command when another one is already active
6735 * is not allowed in SLI. Also, the driver must have established
6736 * SLI2 mode to queue and process multiple mbox commands.
6739 if (flag
& MBX_POLL
) {
6740 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6742 /* Mbox command <mbxCommand> cannot issue */
6743 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6744 "(%d):2529 Mailbox command x%x "
6745 "cannot issue Data: x%x x%x\n",
6746 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6747 pmbox
->u
.mb
.mbxCommand
,
6748 psli
->sli_flag
, flag
);
6749 goto out_not_finished
;
6752 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
6753 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6754 /* Mbox command <mbxCommand> cannot issue */
6755 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6756 "(%d):2530 Mailbox command x%x "
6757 "cannot issue Data: x%x x%x\n",
6758 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6759 pmbox
->u
.mb
.mbxCommand
,
6760 psli
->sli_flag
, flag
);
6761 goto out_not_finished
;
6764 /* Another mailbox command is still being processed, queue this
6765 * command to be processed later.
6767 lpfc_mbox_put(phba
, pmbox
);
6769 /* Mbox cmd issue - BUSY */
6770 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6771 "(%d):0308 Mbox cmd issue - BUSY Data: "
6772 "x%x x%x x%x x%x\n",
6773 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
6774 mbx
->mbxCommand
, phba
->pport
->port_state
,
6775 psli
->sli_flag
, flag
);
6777 psli
->slistat
.mbox_busy
++;
6778 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6781 lpfc_debugfs_disc_trc(pmbox
->vport
,
6782 LPFC_DISC_TRC_MBOX_VPORT
,
6783 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
6784 (uint32_t)mbx
->mbxCommand
,
6785 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
6788 lpfc_debugfs_disc_trc(phba
->pport
,
6790 "MBOX Bsy: cmd:x%x mb:x%x x%x",
6791 (uint32_t)mbx
->mbxCommand
,
6792 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
6798 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
6800 /* If we are not polling, we MUST be in SLI2 mode */
6801 if (flag
!= MBX_POLL
) {
6802 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
6803 (mbx
->mbxCommand
!= MBX_KILL_BOARD
)) {
6804 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6805 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6806 /* Mbox command <mbxCommand> cannot issue */
6807 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6808 "(%d):2531 Mailbox command x%x "
6809 "cannot issue Data: x%x x%x\n",
6810 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6811 pmbox
->u
.mb
.mbxCommand
,
6812 psli
->sli_flag
, flag
);
6813 goto out_not_finished
;
6815 /* timeout active mbox command */
6816 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
6818 mod_timer(&psli
->mbox_tmo
, jiffies
+ timeout
);
6821 /* Mailbox cmd <cmd> issue */
6822 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6823 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
6825 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
6826 mbx
->mbxCommand
, phba
->pport
->port_state
,
6827 psli
->sli_flag
, flag
);
6829 if (mbx
->mbxCommand
!= MBX_HEARTBEAT
) {
6831 lpfc_debugfs_disc_trc(pmbox
->vport
,
6832 LPFC_DISC_TRC_MBOX_VPORT
,
6833 "MBOX Send vport: cmd:x%x mb:x%x x%x",
6834 (uint32_t)mbx
->mbxCommand
,
6835 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
6838 lpfc_debugfs_disc_trc(phba
->pport
,
6840 "MBOX Send: cmd:x%x mb:x%x x%x",
6841 (uint32_t)mbx
->mbxCommand
,
6842 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
6846 psli
->slistat
.mbox_cmd
++;
6847 evtctr
= psli
->slistat
.mbox_event
;
6849 /* next set own bit for the adapter and copy over command word */
6850 mbx
->mbxOwner
= OWN_CHIP
;
6852 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
6853 /* Populate mbox extension offset word. */
6854 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
6855 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
6856 = (uint8_t *)phba
->mbox_ext
6857 - (uint8_t *)phba
->mbox
;
6860 /* Copy the mailbox extension data */
6861 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
6862 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
6863 (uint8_t *)phba
->mbox_ext
,
6864 pmbox
->in_ext_byte_len
);
6866 /* Copy command data to host SLIM area */
6867 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
6869 /* Populate mbox extension offset word. */
6870 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
6871 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
6872 = MAILBOX_HBA_EXT_OFFSET
;
6874 /* Copy the mailbox extension data */
6875 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
6876 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
6877 MAILBOX_HBA_EXT_OFFSET
,
6878 pmbox
->context2
, pmbox
->in_ext_byte_len
);
6881 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
6882 /* copy command data into host mbox for cmpl */
6883 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
6886 /* First copy mbox command data to HBA SLIM, skip past first
6888 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
6889 lpfc_memcpy_to_slim(to_slim
, &mbx
->un
.varWords
[0],
6890 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
6892 /* Next copy over first word, with mbxOwner set */
6893 ldata
= *((uint32_t *)mbx
);
6894 to_slim
= phba
->MBslimaddr
;
6895 writel(ldata
, to_slim
);
6896 readl(to_slim
); /* flush */
6898 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
6899 /* switch over to host mailbox */
6900 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
6908 /* Set up reference to mailbox command */
6909 psli
->mbox_active
= pmbox
;
6910 /* Interrupt board to do it */
6911 writel(CA_MBATT
, phba
->CAregaddr
);
6912 readl(phba
->CAregaddr
); /* flush */
6913 /* Don't wait for it to finish, just return */
6917 /* Set up null reference to mailbox command */
6918 psli
->mbox_active
= NULL
;
6919 /* Interrupt board to do it */
6920 writel(CA_MBATT
, phba
->CAregaddr
);
6921 readl(phba
->CAregaddr
); /* flush */
6923 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
6924 /* First read mbox status word */
6925 word0
= *((uint32_t *)phba
->mbox
);
6926 word0
= le32_to_cpu(word0
);
6928 /* First read mbox status word */
6929 if (lpfc_readl(phba
->MBslimaddr
, &word0
)) {
6930 spin_unlock_irqrestore(&phba
->hbalock
,
6932 goto out_not_finished
;
6936 /* Read the HBA Host Attention Register */
6937 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
6938 spin_unlock_irqrestore(&phba
->hbalock
,
6940 goto out_not_finished
;
6942 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
6945 /* Wait for command to complete */
6946 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
6947 (!(ha_copy
& HA_MBATT
) &&
6948 (phba
->link_state
> LPFC_WARM_START
))) {
6949 if (time_after(jiffies
, timeout
)) {
6950 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6951 spin_unlock_irqrestore(&phba
->hbalock
,
6953 goto out_not_finished
;
6956 /* Check if we took a mbox interrupt while we were
6958 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
6959 && (evtctr
!= psli
->slistat
.mbox_event
))
6963 spin_unlock_irqrestore(&phba
->hbalock
,
6966 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
6969 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
6970 /* First copy command data */
6971 word0
= *((uint32_t *)phba
->mbox
);
6972 word0
= le32_to_cpu(word0
);
6973 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
6976 /* Check real SLIM for any errors */
6977 slimword0
= readl(phba
->MBslimaddr
);
6978 slimmb
= (MAILBOX_t
*) & slimword0
;
6979 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
6980 && slimmb
->mbxStatus
) {
6987 /* First copy command data */
6988 word0
= readl(phba
->MBslimaddr
);
6990 /* Read the HBA Host Attention Register */
6991 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
6992 spin_unlock_irqrestore(&phba
->hbalock
,
6994 goto out_not_finished
;
6998 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
6999 /* copy results back to user */
7000 lpfc_sli_pcimem_bcopy(phba
->mbox
, mbx
, MAILBOX_CMD_SIZE
);
7001 /* Copy the mailbox extension data */
7002 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7003 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
7005 pmbox
->out_ext_byte_len
);
7008 /* First copy command data */
7009 lpfc_memcpy_from_slim(mbx
, phba
->MBslimaddr
,
7011 /* Copy the mailbox extension data */
7012 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7013 lpfc_memcpy_from_slim(pmbox
->context2
,
7015 MAILBOX_HBA_EXT_OFFSET
,
7016 pmbox
->out_ext_byte_len
);
7020 writel(HA_MBATT
, phba
->HAregaddr
);
7021 readl(phba
->HAregaddr
); /* flush */
7023 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7024 status
= mbx
->mbxStatus
;
7027 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7031 if (processing_queue
) {
7032 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7033 lpfc_mbox_cmpl_put(phba
, pmbox
);
7035 return MBX_NOT_FINISHED
;
7039 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7040 * @phba: Pointer to HBA context object.
7042 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7043 * the driver internal pending mailbox queue. It will then try to wait out the
7044 * possible outstanding mailbox command before return.
7047 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7048 * the outstanding mailbox command timed out.
7051 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
7053 struct lpfc_sli
*psli
= &phba
->sli
;
7055 unsigned long timeout
= 0;
7057 /* Mark the asynchronous mailbox command posting as blocked */
7058 spin_lock_irq(&phba
->hbalock
);
7059 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7060 /* Determine how long we might wait for the active mailbox
7061 * command to be gracefully completed by firmware.
7063 if (phba
->sli
.mbox_active
)
7064 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
7065 phba
->sli
.mbox_active
) *
7067 spin_unlock_irq(&phba
->hbalock
);
7069 /* Wait for the outstnading mailbox command to complete */
7070 while (phba
->sli
.mbox_active
) {
7071 /* Check active mailbox complete status every 2ms */
7073 if (time_after(jiffies
, timeout
)) {
7074 /* Timeout, marked the outstanding cmd not complete */
7080 /* Can not cleanly block async mailbox command, fails it */
7082 spin_lock_irq(&phba
->hbalock
);
7083 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7084 spin_unlock_irq(&phba
->hbalock
);
7090 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7091 * @phba: Pointer to HBA context object.
7093 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7094 * commands from the driver internal pending mailbox queue. It makes sure
7095 * that there is no outstanding mailbox command before resuming posting
7096 * asynchronous mailbox commands. If, for any reason, there is outstanding
7097 * mailbox command, it will try to wait it out before resuming asynchronous
7098 * mailbox command posting.
7101 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
7103 struct lpfc_sli
*psli
= &phba
->sli
;
7105 spin_lock_irq(&phba
->hbalock
);
7106 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7107 /* Asynchronous mailbox posting is not blocked, do nothing */
7108 spin_unlock_irq(&phba
->hbalock
);
7112 /* Outstanding synchronous mailbox command is guaranteed to be done,
7113 * successful or timeout, after timing-out the outstanding mailbox
7114 * command shall always be removed, so just unblock posting async
7115 * mailbox command and resume
7117 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7118 spin_unlock_irq(&phba
->hbalock
);
7120 /* wake up worker thread to post asynchronlous mailbox command */
7121 lpfc_worker_wake_up(phba
);
7125 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7126 * @phba: Pointer to HBA context object.
7127 * @mboxq: Pointer to mailbox object.
7129 * The function waits for the bootstrap mailbox register ready bit from
7130 * port for twice the regular mailbox command timeout value.
7132 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7133 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7136 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7139 unsigned long timeout
;
7140 struct lpfc_register bmbx_reg
;
7142 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mboxq
)
7146 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
7147 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
7151 if (time_after(jiffies
, timeout
))
7152 return MBXERR_ERROR
;
7153 } while (!db_ready
);
7159 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7160 * @phba: Pointer to HBA context object.
7161 * @mboxq: Pointer to mailbox object.
7163 * The function posts a mailbox to the port. The mailbox is expected
7164 * to be comletely filled in and ready for the port to operate on it.
7165 * This routine executes a synchronous completion operation on the
7166 * mailbox by polling for its completion.
7168 * The caller must not be holding any locks when calling this routine.
7171 * MBX_SUCCESS - mailbox posted successfully
7172 * Any of the MBX error values.
7175 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7177 int rc
= MBX_SUCCESS
;
7178 unsigned long iflag
;
7179 uint32_t mcqe_status
;
7181 struct lpfc_sli
*psli
= &phba
->sli
;
7182 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
7183 struct lpfc_bmbx_create
*mbox_rgn
;
7184 struct dma_address
*dma_address
;
7187 * Only one mailbox can be active to the bootstrap mailbox region
7188 * at a time and there is no queueing provided.
7190 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7191 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7192 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7193 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7194 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7195 "cannot issue Data: x%x x%x\n",
7196 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7197 mboxq
->u
.mb
.mbxCommand
,
7198 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7199 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7200 psli
->sli_flag
, MBX_POLL
);
7201 return MBXERR_ERROR
;
7203 /* The server grabs the token and owns it until release */
7204 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7205 phba
->sli
.mbox_active
= mboxq
;
7206 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7208 /* wait for bootstrap mbox register for readyness */
7209 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7214 * Initialize the bootstrap memory region to avoid stale data areas
7215 * in the mailbox post. Then copy the caller's mailbox contents to
7216 * the bmbx mailbox region.
7218 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
7219 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
7220 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
7221 sizeof(struct lpfc_mqe
));
7223 /* Post the high mailbox dma address to the port and wait for ready. */
7224 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
7225 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
7227 /* wait for bootstrap mbox register for hi-address write done */
7228 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7232 /* Post the low mailbox dma address to the port. */
7233 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
7235 /* wait for bootstrap mbox register for low address write done */
7236 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7241 * Read the CQ to ensure the mailbox has completed.
7242 * If so, update the mailbox status so that the upper layers
7243 * can complete the request normally.
7245 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
7246 sizeof(struct lpfc_mqe
));
7247 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
7248 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
7249 sizeof(struct lpfc_mcqe
));
7250 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
7252 * When the CQE status indicates a failure and the mailbox status
7253 * indicates success then copy the CQE status into the mailbox status
7254 * (and prefix it with x4000).
7256 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
7257 if (bf_get(lpfc_mqe_status
, mb
) == MBX_SUCCESS
)
7258 bf_set(lpfc_mqe_status
, mb
,
7259 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
7262 lpfc_sli4_swap_str(phba
, mboxq
);
7264 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7265 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7266 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7267 " x%x x%x CQ: x%x x%x x%x x%x\n",
7268 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7269 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7270 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7271 bf_get(lpfc_mqe_status
, mb
),
7272 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
7273 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
7274 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
7275 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
7276 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
7277 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
7278 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
7279 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
7280 mboxq
->mcqe
.trailer
);
7282 /* We are holding the token, no needed for lock when release */
7283 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7284 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7285 phba
->sli
.mbox_active
= NULL
;
7286 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7291 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7292 * @phba: Pointer to HBA context object.
7293 * @pmbox: Pointer to mailbox object.
7294 * @flag: Flag indicating how the mailbox need to be processed.
7296 * This function is called by discovery code and HBA management code to submit
7297 * a mailbox command to firmware with SLI-4 interface spec.
7299 * Return codes the caller owns the mailbox command after the return of the
7303 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
7306 struct lpfc_sli
*psli
= &phba
->sli
;
7307 unsigned long iflags
;
7310 /* dump from issue mailbox command if setup */
7311 lpfc_idiag_mbxacc_dump_issue_mbox(phba
, &mboxq
->u
.mb
);
7313 rc
= lpfc_mbox_dev_check(phba
);
7315 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7316 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7317 "cannot issue Data: x%x x%x\n",
7318 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7319 mboxq
->u
.mb
.mbxCommand
,
7320 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7321 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7322 psli
->sli_flag
, flag
);
7323 goto out_not_finished
;
7326 /* Detect polling mode and jump to a handler */
7327 if (!phba
->sli4_hba
.intr_enable
) {
7328 if (flag
== MBX_POLL
)
7329 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7332 if (rc
!= MBX_SUCCESS
)
7333 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7334 "(%d):2541 Mailbox command x%x "
7335 "(x%x/x%x) failure: "
7336 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7338 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7339 mboxq
->u
.mb
.mbxCommand
,
7340 lpfc_sli_config_mbox_subsys_get(phba
,
7342 lpfc_sli_config_mbox_opcode_get(phba
,
7344 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7345 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7346 bf_get(lpfc_mcqe_ext_status
,
7348 psli
->sli_flag
, flag
);
7350 } else if (flag
== MBX_POLL
) {
7351 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7352 "(%d):2542 Try to issue mailbox command "
7353 "x%x (x%x/x%x) synchronously ahead of async"
7354 "mailbox command queue: x%x x%x\n",
7355 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7356 mboxq
->u
.mb
.mbxCommand
,
7357 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7358 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7359 psli
->sli_flag
, flag
);
7360 /* Try to block the asynchronous mailbox posting */
7361 rc
= lpfc_sli4_async_mbox_block(phba
);
7363 /* Successfully blocked, now issue sync mbox cmd */
7364 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7365 if (rc
!= MBX_SUCCESS
)
7366 lpfc_printf_log(phba
, KERN_WARNING
,
7368 "(%d):2597 Sync Mailbox command "
7369 "x%x (x%x/x%x) failure: "
7370 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7372 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7373 mboxq
->u
.mb
.mbxCommand
,
7374 lpfc_sli_config_mbox_subsys_get(phba
,
7376 lpfc_sli_config_mbox_opcode_get(phba
,
7378 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7379 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7380 bf_get(lpfc_mcqe_ext_status
,
7382 psli
->sli_flag
, flag
);
7383 /* Unblock the async mailbox posting afterward */
7384 lpfc_sli4_async_mbox_unblock(phba
);
7389 /* Now, interrupt mode asynchrous mailbox command */
7390 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
7392 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7393 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7394 "cannot issue Data: x%x x%x\n",
7395 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7396 mboxq
->u
.mb
.mbxCommand
,
7397 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7398 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7399 psli
->sli_flag
, flag
);
7400 goto out_not_finished
;
7403 /* Put the mailbox command to the driver internal FIFO */
7404 psli
->slistat
.mbox_busy
++;
7405 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7406 lpfc_mbox_put(phba
, mboxq
);
7407 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7408 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7409 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7410 "x%x (x%x/x%x) x%x x%x x%x\n",
7411 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
7412 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
7413 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7414 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7415 phba
->pport
->port_state
,
7416 psli
->sli_flag
, MBX_NOWAIT
);
7417 /* Wake up worker thread to transport mailbox command from head */
7418 lpfc_worker_wake_up(phba
);
7423 return MBX_NOT_FINISHED
;
7427 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7428 * @phba: Pointer to HBA context object.
7430 * This function is called by worker thread to send a mailbox command to
7431 * SLI4 HBA firmware.
7435 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
7437 struct lpfc_sli
*psli
= &phba
->sli
;
7438 LPFC_MBOXQ_t
*mboxq
;
7439 int rc
= MBX_SUCCESS
;
7440 unsigned long iflags
;
7441 struct lpfc_mqe
*mqe
;
7444 /* Check interrupt mode before post async mailbox command */
7445 if (unlikely(!phba
->sli4_hba
.intr_enable
))
7446 return MBX_NOT_FINISHED
;
7448 /* Check for mailbox command service token */
7449 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7450 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7451 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7452 return MBX_NOT_FINISHED
;
7454 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7455 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7456 return MBX_NOT_FINISHED
;
7458 if (unlikely(phba
->sli
.mbox_active
)) {
7459 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7460 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7461 "0384 There is pending active mailbox cmd\n");
7462 return MBX_NOT_FINISHED
;
7464 /* Take the mailbox command service token */
7465 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7467 /* Get the next mailbox command from head of queue */
7468 mboxq
= lpfc_mbox_get(phba
);
7470 /* If no more mailbox command waiting for post, we're done */
7472 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7473 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7476 phba
->sli
.mbox_active
= mboxq
;
7477 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7479 /* Check device readiness for posting mailbox command */
7480 rc
= lpfc_mbox_dev_check(phba
);
7482 /* Driver clean routine will clean up pending mailbox */
7483 goto out_not_finished
;
7485 /* Prepare the mbox command to be posted */
7486 mqe
= &mboxq
->u
.mqe
;
7487 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
7489 /* Start timer for the mbox_tmo and log some mailbox post messages */
7490 mod_timer(&psli
->mbox_tmo
, (jiffies
+
7491 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba
, mboxq
))));
7493 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7494 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7496 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7497 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7498 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7499 phba
->pport
->port_state
, psli
->sli_flag
);
7501 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
7503 lpfc_debugfs_disc_trc(mboxq
->vport
,
7504 LPFC_DISC_TRC_MBOX_VPORT
,
7505 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7506 mbx_cmnd
, mqe
->un
.mb_words
[0],
7507 mqe
->un
.mb_words
[1]);
7509 lpfc_debugfs_disc_trc(phba
->pport
,
7511 "MBOX Send: cmd:x%x mb:x%x x%x",
7512 mbx_cmnd
, mqe
->un
.mb_words
[0],
7513 mqe
->un
.mb_words
[1]);
7516 psli
->slistat
.mbox_cmd
++;
7518 /* Post the mailbox command to the port */
7519 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
7520 if (rc
!= MBX_SUCCESS
) {
7521 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7522 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7523 "cannot issue Data: x%x x%x\n",
7524 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7525 mboxq
->u
.mb
.mbxCommand
,
7526 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7527 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7528 psli
->sli_flag
, MBX_NOWAIT
);
7529 goto out_not_finished
;
7535 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7536 if (phba
->sli
.mbox_active
) {
7537 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7538 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7539 /* Release the token */
7540 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7541 phba
->sli
.mbox_active
= NULL
;
7543 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7545 return MBX_NOT_FINISHED
;
7549 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7550 * @phba: Pointer to HBA context object.
7551 * @pmbox: Pointer to mailbox object.
7552 * @flag: Flag indicating how the mailbox need to be processed.
7554 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7555 * the API jump table function pointer from the lpfc_hba struct.
7557 * Return codes the caller owns the mailbox command after the return of the
7561 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
7563 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
7567 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7568 * @phba: The hba struct for which this call is being executed.
7569 * @dev_grp: The HBA PCI-Device group number.
7571 * This routine sets up the mbox interface API function jump table in @phba
7573 * Returns: 0 - success, -ENODEV - failure.
7576 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
7580 case LPFC_PCI_DEV_LP
:
7581 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
7582 phba
->lpfc_sli_handle_slow_ring_event
=
7583 lpfc_sli_handle_slow_ring_event_s3
;
7584 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
7585 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
7586 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
7588 case LPFC_PCI_DEV_OC
:
7589 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
7590 phba
->lpfc_sli_handle_slow_ring_event
=
7591 lpfc_sli_handle_slow_ring_event_s4
;
7592 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
7593 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
7594 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
7597 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7598 "1420 Invalid HBA PCI-device group: 0x%x\n",
7607 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7608 * @phba: Pointer to HBA context object.
7609 * @pring: Pointer to driver SLI ring object.
7610 * @piocb: Pointer to address of newly added command iocb.
7612 * This function is called with hbalock held to add a command
7613 * iocb to the txq when SLI layer cannot submit the command iocb
7617 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7618 struct lpfc_iocbq
*piocb
)
7620 /* Insert the caller's iocb in the txq tail for later processing. */
7621 list_add_tail(&piocb
->list
, &pring
->txq
);
7625 * lpfc_sli_next_iocb - Get the next iocb in the txq
7626 * @phba: Pointer to HBA context object.
7627 * @pring: Pointer to driver SLI ring object.
7628 * @piocb: Pointer to address of newly added command iocb.
7630 * This function is called with hbalock held before a new
7631 * iocb is submitted to the firmware. This function checks
7632 * txq to flush the iocbs in txq to Firmware before
7633 * submitting new iocbs to the Firmware.
7634 * If there are iocbs in the txq which need to be submitted
7635 * to firmware, lpfc_sli_next_iocb returns the first element
7636 * of the txq after dequeuing it from txq.
7637 * If there is no iocb in the txq then the function will return
7638 * *piocb and *piocb is set to NULL. Caller needs to check
7639 * *piocb to find if there are more commands in the txq.
7641 static struct lpfc_iocbq
*
7642 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7643 struct lpfc_iocbq
**piocb
)
7645 struct lpfc_iocbq
* nextiocb
;
7647 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
7657 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7658 * @phba: Pointer to HBA context object.
7659 * @ring_number: SLI ring number to issue iocb on.
7660 * @piocb: Pointer to command iocb.
7661 * @flag: Flag indicating if this command can be put into txq.
7663 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7664 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
7665 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
7666 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
7667 * this function allows only iocbs for posting buffers. This function finds
7668 * next available slot in the command ring and posts the command to the
7669 * available slot and writes the port attention register to request HBA start
7670 * processing new iocb. If there is no slot available in the ring and
7671 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
7672 * the function returns IOCB_BUSY.
7674 * This function is called with hbalock held. The function will return success
7675 * after it successfully submit the iocb to firmware or after adding to the
7679 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
7680 struct lpfc_iocbq
*piocb
, uint32_t flag
)
7682 struct lpfc_iocbq
*nextiocb
;
7684 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
7686 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
7687 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
7688 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
7689 lpfc_printf_log(phba
, KERN_ERR
,
7690 LOG_SLI
| LOG_VPORT
,
7691 "1807 IOCB x%x failed. No vport\n",
7692 piocb
->iocb
.ulpCommand
);
7698 /* If the PCI channel is in offline state, do not post iocbs. */
7699 if (unlikely(pci_channel_offline(phba
->pcidev
)))
7702 /* If HBA has a deferred error attention, fail the iocb. */
7703 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
7707 * We should never get an IOCB if we are in a < LINK_DOWN state
7709 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
7713 * Check to see if we are blocking IOCB processing because of a
7714 * outstanding event.
7716 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
7719 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
7721 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
7722 * can be issued if the link is not up.
7724 switch (piocb
->iocb
.ulpCommand
) {
7725 case CMD_GEN_REQUEST64_CR
:
7726 case CMD_GEN_REQUEST64_CX
:
7727 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
7728 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
7729 FC_RCTL_DD_UNSOL_CMD
) ||
7730 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
7731 MENLO_TRANSPORT_TYPE
))
7735 case CMD_QUE_RING_BUF_CN
:
7736 case CMD_QUE_RING_BUF64_CN
:
7738 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
7739 * completion, iocb_cmpl MUST be 0.
7741 if (piocb
->iocb_cmpl
)
7742 piocb
->iocb_cmpl
= NULL
;
7744 case CMD_CREATE_XRI_CR
:
7745 case CMD_CLOSE_XRI_CN
:
7746 case CMD_CLOSE_XRI_CX
:
7753 * For FCP commands, we must be in a state where we can process link
7756 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
7757 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
7761 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
7762 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
7763 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
7766 lpfc_sli_update_ring(phba
, pring
);
7768 lpfc_sli_update_full_ring(phba
, pring
);
7771 return IOCB_SUCCESS
;
7776 pring
->stats
.iocb_cmd_delay
++;
7780 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
7781 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
7782 return IOCB_SUCCESS
;
7789 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
7790 * @phba: Pointer to HBA context object.
7791 * @piocb: Pointer to command iocb.
7792 * @sglq: Pointer to the scatter gather queue object.
7794 * This routine converts the bpl or bde that is in the IOCB
7795 * to a sgl list for the sli4 hardware. The physical address
7796 * of the bpl/bde is converted back to a virtual address.
7797 * If the IOCB contains a BPL then the list of BDE's is
7798 * converted to sli4_sge's. If the IOCB contains a single
7799 * BDE then it is converted to a single sli_sge.
7800 * The IOCB is still in cpu endianess so the contents of
7801 * the bpl can be used without byte swapping.
7803 * Returns valid XRI = Success, NO_XRI = Failure.
7806 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
7807 struct lpfc_sglq
*sglq
)
7809 uint16_t xritag
= NO_XRI
;
7810 struct ulp_bde64
*bpl
= NULL
;
7811 struct ulp_bde64 bde
;
7812 struct sli4_sge
*sgl
= NULL
;
7813 struct lpfc_dmabuf
*dmabuf
;
7817 uint32_t offset
= 0; /* accumulated offset in the sg request list */
7818 int inbound
= 0; /* number of sg reply entries inbound from firmware */
7820 if (!piocbq
|| !sglq
)
7823 sgl
= (struct sli4_sge
*)sglq
->sgl
;
7824 icmd
= &piocbq
->iocb
;
7825 if (icmd
->ulpCommand
== CMD_XMIT_BLS_RSP64_CX
)
7826 return sglq
->sli4_xritag
;
7827 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
7828 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
7829 sizeof(struct ulp_bde64
);
7830 /* The addrHigh and addrLow fields within the IOCB
7831 * have not been byteswapped yet so there is no
7832 * need to swap them back.
7834 if (piocbq
->context3
)
7835 dmabuf
= (struct lpfc_dmabuf
*)piocbq
->context3
;
7839 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
7843 for (i
= 0; i
< numBdes
; i
++) {
7844 /* Should already be byte swapped. */
7845 sgl
->addr_hi
= bpl
->addrHigh
;
7846 sgl
->addr_lo
= bpl
->addrLow
;
7848 sgl
->word2
= le32_to_cpu(sgl
->word2
);
7849 if ((i
+1) == numBdes
)
7850 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
7852 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
7853 /* swap the size field back to the cpu so we
7854 * can assign it to the sgl.
7856 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
7857 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
7858 /* The offsets in the sgl need to be accumulated
7859 * separately for the request and reply lists.
7860 * The request is always first, the reply follows.
7862 if (piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) {
7863 /* add up the reply sg entries */
7864 if (bpl
->tus
.f
.bdeFlags
== BUFF_TYPE_BDE_64I
)
7866 /* first inbound? reset the offset */
7869 bf_set(lpfc_sli4_sge_offset
, sgl
, offset
);
7870 bf_set(lpfc_sli4_sge_type
, sgl
,
7871 LPFC_SGE_TYPE_DATA
);
7872 offset
+= bde
.tus
.f
.bdeSize
;
7874 sgl
->word2
= cpu_to_le32(sgl
->word2
);
7878 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
7879 /* The addrHigh and addrLow fields of the BDE have not
7880 * been byteswapped yet so they need to be swapped
7881 * before putting them in the sgl.
7884 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
7886 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
7887 sgl
->word2
= le32_to_cpu(sgl
->word2
);
7888 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
7889 sgl
->word2
= cpu_to_le32(sgl
->word2
);
7891 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
7893 return sglq
->sli4_xritag
;
7897 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
7898 * @phba: Pointer to HBA context object.
7900 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
7901 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
7904 * Return: index into SLI4 fast-path FCP queue index.
7906 static inline uint32_t
7907 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
7909 struct lpfc_vector_map_info
*cpup
;
7912 if (phba
->cfg_fcp_io_sched
== LPFC_FCP_SCHED_BY_CPU
) {
7913 cpu
= smp_processor_id();
7914 if (cpu
< phba
->sli4_hba
.num_present_cpu
) {
7915 cpup
= phba
->sli4_hba
.cpu_map
;
7917 return cpup
->channel_id
;
7921 chann
= atomic_add_return(1, &phba
->fcp_qidx
);
7922 chann
= (chann
% phba
->cfg_fcp_io_channel
);
7927 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
7928 * @phba: Pointer to HBA context object.
7929 * @piocb: Pointer to command iocb.
7930 * @wqe: Pointer to the work queue entry.
7932 * This routine converts the iocb command to its Work Queue Entry
7933 * equivalent. The wqe pointer should not have any fields set when
7934 * this routine is called because it will memcpy over them.
7935 * This routine does not set the CQ_ID or the WQEC bits in the
7938 * Returns: 0 = Success, IOCB_ERROR = Failure.
7941 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
7942 union lpfc_wqe
*wqe
)
7944 uint32_t xmit_len
= 0, total_len
= 0;
7948 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
7951 uint16_t abrt_iotag
;
7952 struct lpfc_iocbq
*abrtiocbq
;
7953 struct ulp_bde64
*bpl
= NULL
;
7954 uint32_t els_id
= LPFC_ELS_ID_DEFAULT
;
7956 struct ulp_bde64 bde
;
7957 struct lpfc_nodelist
*ndlp
;
7961 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
7962 /* The fcp commands will set command type */
7963 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
7964 command_type
= FCP_COMMAND
;
7965 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
7966 command_type
= ELS_COMMAND_FIP
;
7968 command_type
= ELS_COMMAND_NON_FIP
;
7970 /* Some of the fields are in the right position already */
7971 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
7972 abort_tag
= (uint32_t) iocbq
->iotag
;
7973 xritag
= iocbq
->sli4_xritag
;
7974 wqe
->generic
.wqe_com
.word7
= 0; /* The ct field has moved so reset */
7975 /* words0-2 bpl convert bde */
7976 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
7977 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
7978 sizeof(struct ulp_bde64
);
7979 bpl
= (struct ulp_bde64
*)
7980 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
7984 /* Should already be byte swapped. */
7985 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
7986 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
7987 /* swap the size field back to the cpu so we
7988 * can assign it to the sgl.
7990 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
7991 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
7993 for (i
= 0; i
< numBdes
; i
++) {
7994 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
7995 total_len
+= bde
.tus
.f
.bdeSize
;
7998 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
8000 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
8001 cmnd
= iocbq
->iocb
.ulpCommand
;
8003 switch (iocbq
->iocb
.ulpCommand
) {
8004 case CMD_ELS_REQUEST64_CR
:
8005 if (iocbq
->iocb_flag
& LPFC_IO_LIBDFC
)
8006 ndlp
= iocbq
->context_un
.ndlp
;
8008 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8009 if (!iocbq
->iocb
.ulpLe
) {
8010 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8011 "2007 Only Limited Edition cmd Format"
8012 " supported 0x%x\n",
8013 iocbq
->iocb
.ulpCommand
);
8017 wqe
->els_req
.payload_len
= xmit_len
;
8018 /* Els_reguest64 has a TMO */
8019 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
8020 iocbq
->iocb
.ulpTimeout
);
8021 /* Need a VF for word 4 set the vf bit*/
8022 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
8023 /* And a VFID for word 12 */
8024 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
8025 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8026 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8027 iocbq
->iocb
.ulpContext
);
8028 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, ct
);
8029 bf_set(wqe_pu
, &wqe
->els_req
.wqe_com
, 0);
8030 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8031 if (command_type
== ELS_COMMAND_FIP
)
8032 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
8033 >> LPFC_FIP_ELS_ID_SHIFT
);
8034 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8035 iocbq
->context2
)->virt
);
8036 if_type
= bf_get(lpfc_sli_intf_if_type
,
8037 &phba
->sli4_hba
.sli_intf
);
8038 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8039 if (pcmd
&& (*pcmd
== ELS_CMD_FLOGI
||
8040 *pcmd
== ELS_CMD_SCR
||
8041 *pcmd
== ELS_CMD_FDISC
||
8042 *pcmd
== ELS_CMD_LOGO
||
8043 *pcmd
== ELS_CMD_PLOGI
)) {
8044 bf_set(els_req64_sp
, &wqe
->els_req
, 1);
8045 bf_set(els_req64_sid
, &wqe
->els_req
,
8046 iocbq
->vport
->fc_myDID
);
8047 if ((*pcmd
== ELS_CMD_FLOGI
) &&
8048 !(phba
->fc_topology
==
8049 LPFC_TOPOLOGY_LOOP
))
8050 bf_set(els_req64_sid
, &wqe
->els_req
, 0);
8051 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 1);
8052 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8053 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8054 } else if (pcmd
&& iocbq
->context1
) {
8055 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 0);
8056 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8057 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8060 bf_set(wqe_temp_rpi
, &wqe
->els_req
.wqe_com
,
8061 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8062 bf_set(wqe_els_id
, &wqe
->els_req
.wqe_com
, els_id
);
8063 bf_set(wqe_dbde
, &wqe
->els_req
.wqe_com
, 1);
8064 bf_set(wqe_iod
, &wqe
->els_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8065 bf_set(wqe_qosd
, &wqe
->els_req
.wqe_com
, 1);
8066 bf_set(wqe_lenloc
, &wqe
->els_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8067 bf_set(wqe_ebde_cnt
, &wqe
->els_req
.wqe_com
, 0);
8069 case CMD_XMIT_SEQUENCE64_CX
:
8070 bf_set(wqe_ctxt_tag
, &wqe
->xmit_sequence
.wqe_com
,
8071 iocbq
->iocb
.un
.ulpWord
[3]);
8072 bf_set(wqe_rcvoxid
, &wqe
->xmit_sequence
.wqe_com
,
8073 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8074 /* The entire sequence is transmitted for this IOCB */
8075 xmit_len
= total_len
;
8076 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
8077 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
8078 bf_set(wqe_xo
, &wqe
->xmit_sequence
.wge_ctl
, 1);
8079 case CMD_XMIT_SEQUENCE64_CR
:
8080 /* word3 iocb=io_tag32 wqe=reserved */
8081 wqe
->xmit_sequence
.rsvd3
= 0;
8082 /* word4 relative_offset memcpy */
8083 /* word5 r_ctl/df_ctl memcpy */
8084 bf_set(wqe_pu
, &wqe
->xmit_sequence
.wqe_com
, 0);
8085 bf_set(wqe_dbde
, &wqe
->xmit_sequence
.wqe_com
, 1);
8086 bf_set(wqe_iod
, &wqe
->xmit_sequence
.wqe_com
,
8087 LPFC_WQE_IOD_WRITE
);
8088 bf_set(wqe_lenloc
, &wqe
->xmit_sequence
.wqe_com
,
8089 LPFC_WQE_LENLOC_WORD12
);
8090 bf_set(wqe_ebde_cnt
, &wqe
->xmit_sequence
.wqe_com
, 0);
8091 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
8092 command_type
= OTHER_COMMAND
;
8094 case CMD_XMIT_BCAST64_CN
:
8095 /* word3 iocb=iotag32 wqe=seq_payload_len */
8096 wqe
->xmit_bcast64
.seq_payload_len
= xmit_len
;
8097 /* word4 iocb=rsvd wqe=rsvd */
8098 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8099 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8100 bf_set(wqe_ct
, &wqe
->xmit_bcast64
.wqe_com
,
8101 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8102 bf_set(wqe_dbde
, &wqe
->xmit_bcast64
.wqe_com
, 1);
8103 bf_set(wqe_iod
, &wqe
->xmit_bcast64
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8104 bf_set(wqe_lenloc
, &wqe
->xmit_bcast64
.wqe_com
,
8105 LPFC_WQE_LENLOC_WORD3
);
8106 bf_set(wqe_ebde_cnt
, &wqe
->xmit_bcast64
.wqe_com
, 0);
8108 case CMD_FCP_IWRITE64_CR
:
8109 command_type
= FCP_COMMAND_DATA_OUT
;
8110 /* word3 iocb=iotag wqe=payload_offset_len */
8111 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8112 wqe
->fcp_iwrite
.payload_offset_len
=
8113 xmit_len
+ sizeof(struct fcp_rsp
);
8114 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8115 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8116 bf_set(wqe_erp
, &wqe
->fcp_iwrite
.wqe_com
,
8117 iocbq
->iocb
.ulpFCP2Rcvy
);
8118 bf_set(wqe_lnk
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpXS
);
8119 /* Always open the exchange */
8120 bf_set(wqe_xc
, &wqe
->fcp_iwrite
.wqe_com
, 0);
8121 bf_set(wqe_iod
, &wqe
->fcp_iwrite
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8122 bf_set(wqe_lenloc
, &wqe
->fcp_iwrite
.wqe_com
,
8123 LPFC_WQE_LENLOC_WORD4
);
8124 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iwrite
.wqe_com
, 0);
8125 bf_set(wqe_pu
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpPU
);
8126 bf_set(wqe_dbde
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8128 case CMD_FCP_IREAD64_CR
:
8129 /* word3 iocb=iotag wqe=payload_offset_len */
8130 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8131 wqe
->fcp_iread
.payload_offset_len
=
8132 xmit_len
+ sizeof(struct fcp_rsp
);
8133 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8134 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8135 bf_set(wqe_erp
, &wqe
->fcp_iread
.wqe_com
,
8136 iocbq
->iocb
.ulpFCP2Rcvy
);
8137 bf_set(wqe_lnk
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpXS
);
8138 /* Always open the exchange */
8139 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
8140 bf_set(wqe_iod
, &wqe
->fcp_iread
.wqe_com
, LPFC_WQE_IOD_READ
);
8141 bf_set(wqe_lenloc
, &wqe
->fcp_iread
.wqe_com
,
8142 LPFC_WQE_LENLOC_WORD4
);
8143 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iread
.wqe_com
, 0);
8144 bf_set(wqe_pu
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpPU
);
8145 bf_set(wqe_dbde
, &wqe
->fcp_iread
.wqe_com
, 1);
8147 case CMD_FCP_ICMND64_CR
:
8148 /* word3 iocb=IO_TAG wqe=reserved */
8149 wqe
->fcp_icmd
.rsrvd3
= 0;
8150 bf_set(wqe_pu
, &wqe
->fcp_icmd
.wqe_com
, 0);
8151 /* Always open the exchange */
8152 bf_set(wqe_xc
, &wqe
->fcp_icmd
.wqe_com
, 0);
8153 bf_set(wqe_dbde
, &wqe
->fcp_icmd
.wqe_com
, 1);
8154 bf_set(wqe_iod
, &wqe
->fcp_icmd
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8155 bf_set(wqe_qosd
, &wqe
->fcp_icmd
.wqe_com
, 1);
8156 bf_set(wqe_lenloc
, &wqe
->fcp_icmd
.wqe_com
,
8157 LPFC_WQE_LENLOC_NONE
);
8158 bf_set(wqe_ebde_cnt
, &wqe
->fcp_icmd
.wqe_com
, 0);
8159 bf_set(wqe_erp
, &wqe
->fcp_icmd
.wqe_com
,
8160 iocbq
->iocb
.ulpFCP2Rcvy
);
8162 case CMD_GEN_REQUEST64_CR
:
8163 /* For this command calculate the xmit length of the
8167 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
8168 sizeof(struct ulp_bde64
);
8169 for (i
= 0; i
< numBdes
; i
++) {
8170 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
8171 if (bde
.tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
8173 xmit_len
+= bde
.tus
.f
.bdeSize
;
8175 /* word3 iocb=IO_TAG wqe=request_payload_len */
8176 wqe
->gen_req
.request_payload_len
= xmit_len
;
8177 /* word4 iocb=parameter wqe=relative_offset memcpy */
8178 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8179 /* word6 context tag copied in memcpy */
8180 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
8181 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8182 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8183 "2015 Invalid CT %x command 0x%x\n",
8184 ct
, iocbq
->iocb
.ulpCommand
);
8187 bf_set(wqe_ct
, &wqe
->gen_req
.wqe_com
, 0);
8188 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpTimeout
);
8189 bf_set(wqe_pu
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpPU
);
8190 bf_set(wqe_dbde
, &wqe
->gen_req
.wqe_com
, 1);
8191 bf_set(wqe_iod
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8192 bf_set(wqe_qosd
, &wqe
->gen_req
.wqe_com
, 1);
8193 bf_set(wqe_lenloc
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8194 bf_set(wqe_ebde_cnt
, &wqe
->gen_req
.wqe_com
, 0);
8195 command_type
= OTHER_COMMAND
;
8197 case CMD_XMIT_ELS_RSP64_CX
:
8198 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8199 /* words0-2 BDE memcpy */
8200 /* word3 iocb=iotag32 wqe=response_payload_len */
8201 wqe
->xmit_els_rsp
.response_payload_len
= xmit_len
;
8203 wqe
->xmit_els_rsp
.word4
= 0;
8204 /* word5 iocb=rsvd wge=did */
8205 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
8206 iocbq
->iocb
.un
.xseq64
.xmit_els_remoteID
);
8208 if_type
= bf_get(lpfc_sli_intf_if_type
,
8209 &phba
->sli4_hba
.sli_intf
);
8210 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8211 if (iocbq
->vport
->fc_flag
& FC_PT2PT
) {
8212 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8213 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8214 iocbq
->vport
->fc_myDID
);
8215 if (iocbq
->vport
->fc_myDID
== Fabric_DID
) {
8217 &wqe
->xmit_els_rsp
.wqe_dest
, 0);
8221 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
,
8222 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8223 bf_set(wqe_pu
, &wqe
->xmit_els_rsp
.wqe_com
, iocbq
->iocb
.ulpPU
);
8224 bf_set(wqe_rcvoxid
, &wqe
->xmit_els_rsp
.wqe_com
,
8225 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8226 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
8227 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8228 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8229 bf_set(wqe_dbde
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8230 bf_set(wqe_iod
, &wqe
->xmit_els_rsp
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8231 bf_set(wqe_qosd
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8232 bf_set(wqe_lenloc
, &wqe
->xmit_els_rsp
.wqe_com
,
8233 LPFC_WQE_LENLOC_WORD3
);
8234 bf_set(wqe_ebde_cnt
, &wqe
->xmit_els_rsp
.wqe_com
, 0);
8235 bf_set(wqe_rsp_temp_rpi
, &wqe
->xmit_els_rsp
,
8236 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8237 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8238 iocbq
->context2
)->virt
);
8239 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8240 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8241 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8242 iocbq
->vport
->fc_myDID
);
8243 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8244 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8245 phba
->vpi_ids
[phba
->pport
->vpi
]);
8247 command_type
= OTHER_COMMAND
;
8249 case CMD_CLOSE_XRI_CN
:
8250 case CMD_ABORT_XRI_CN
:
8251 case CMD_ABORT_XRI_CX
:
8252 /* words 0-2 memcpy should be 0 rserved */
8253 /* port will send abts */
8254 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
8255 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
8256 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
8257 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
8261 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
8263 * The link is down, or the command was ELS_FIP
8264 * so the fw does not need to send abts
8267 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
8269 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
8270 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
8271 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8272 wqe
->abort_cmd
.rsrvd5
= 0;
8273 bf_set(wqe_ct
, &wqe
->abort_cmd
.wqe_com
,
8274 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8275 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
8277 * The abort handler will send us CMD_ABORT_XRI_CN or
8278 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8280 bf_set(wqe_cmnd
, &wqe
->abort_cmd
.wqe_com
, CMD_ABORT_XRI_CX
);
8281 bf_set(wqe_qosd
, &wqe
->abort_cmd
.wqe_com
, 1);
8282 bf_set(wqe_lenloc
, &wqe
->abort_cmd
.wqe_com
,
8283 LPFC_WQE_LENLOC_NONE
);
8284 cmnd
= CMD_ABORT_XRI_CX
;
8285 command_type
= OTHER_COMMAND
;
8288 case CMD_XMIT_BLS_RSP64_CX
:
8289 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8290 /* As BLS ABTS RSP WQE is very different from other WQEs,
8291 * we re-construct this WQE here based on information in
8292 * iocbq from scratch.
8294 memset(wqe
, 0, sizeof(union lpfc_wqe
));
8295 /* OX_ID is invariable to who sent ABTS to CT exchange */
8296 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
8297 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_rsp
));
8298 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_rsp
) ==
8299 LPFC_ABTS_UNSOL_INT
) {
8300 /* ABTS sent by initiator to CT exchange, the
8301 * RX_ID field will be filled with the newly
8302 * allocated responder XRI.
8304 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8305 iocbq
->sli4_xritag
);
8307 /* ABTS sent by responder to CT exchange, the
8308 * RX_ID field will be filled with the responder
8311 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8312 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_rsp
));
8314 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
8315 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
8318 bf_set(wqe_els_did
, &wqe
->xmit_bls_rsp
.wqe_dest
,
8320 bf_set(xmit_bls_rsp64_temprpi
, &wqe
->xmit_bls_rsp
,
8321 iocbq
->iocb
.ulpContext
);
8322 bf_set(wqe_ct
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8323 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
8324 phba
->vpi_ids
[phba
->pport
->vpi
]);
8325 bf_set(wqe_qosd
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8326 bf_set(wqe_lenloc
, &wqe
->xmit_bls_rsp
.wqe_com
,
8327 LPFC_WQE_LENLOC_NONE
);
8328 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8329 command_type
= OTHER_COMMAND
;
8330 if (iocbq
->iocb
.un
.xseq64
.w5
.hcsw
.Rctl
== FC_RCTL_BA_RJT
) {
8331 bf_set(xmit_bls_rsp64_rjt_vspec
, &wqe
->xmit_bls_rsp
,
8332 bf_get(lpfc_vndr_code
, &iocbq
->iocb
.un
.bls_rsp
));
8333 bf_set(xmit_bls_rsp64_rjt_expc
, &wqe
->xmit_bls_rsp
,
8334 bf_get(lpfc_rsn_expln
, &iocbq
->iocb
.un
.bls_rsp
));
8335 bf_set(xmit_bls_rsp64_rjt_rsnc
, &wqe
->xmit_bls_rsp
,
8336 bf_get(lpfc_rsn_code
, &iocbq
->iocb
.un
.bls_rsp
));
8340 case CMD_XRI_ABORTED_CX
:
8341 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
8342 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
8343 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
8344 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
8345 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
8347 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8348 "2014 Invalid command 0x%x\n",
8349 iocbq
->iocb
.ulpCommand
);
8354 if (iocbq
->iocb_flag
& LPFC_IO_DIF_PASS
)
8355 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_PASSTHRU
);
8356 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_STRIP
)
8357 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_STRIP
);
8358 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_INSERT
)
8359 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_INSERT
);
8360 iocbq
->iocb_flag
&= ~(LPFC_IO_DIF_PASS
| LPFC_IO_DIF_STRIP
|
8361 LPFC_IO_DIF_INSERT
);
8362 bf_set(wqe_xri_tag
, &wqe
->generic
.wqe_com
, xritag
);
8363 bf_set(wqe_reqtag
, &wqe
->generic
.wqe_com
, iocbq
->iotag
);
8364 wqe
->generic
.wqe_com
.abort_tag
= abort_tag
;
8365 bf_set(wqe_cmd_type
, &wqe
->generic
.wqe_com
, command_type
);
8366 bf_set(wqe_cmnd
, &wqe
->generic
.wqe_com
, cmnd
);
8367 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, iocbq
->iocb
.ulpClass
);
8368 bf_set(wqe_cqid
, &wqe
->generic
.wqe_com
, LPFC_WQE_CQ_ID_DEFAULT
);
8373 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8374 * @phba: Pointer to HBA context object.
8375 * @ring_number: SLI ring number to issue iocb on.
8376 * @piocb: Pointer to command iocb.
8377 * @flag: Flag indicating if this command can be put into txq.
8379 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8380 * an iocb command to an HBA with SLI-4 interface spec.
8382 * This function is called with hbalock held. The function will return success
8383 * after it successfully submit the iocb to firmware or after adding to the
8387 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
8388 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8390 struct lpfc_sglq
*sglq
;
8392 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
8394 if (piocb
->sli4_xritag
== NO_XRI
) {
8395 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
8396 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
8399 if (!list_empty(&pring
->txq
)) {
8400 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8401 __lpfc_sli_ringtx_put(phba
,
8403 return IOCB_SUCCESS
;
8408 sglq
= __lpfc_sli_get_sglq(phba
, piocb
);
8410 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8411 __lpfc_sli_ringtx_put(phba
,
8414 return IOCB_SUCCESS
;
8420 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
8421 /* These IO's already have an XRI and a mapped sgl. */
8425 * This is a continuation of a commandi,(CX) so this
8426 * sglq is on the active list
8428 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_lxritag
);
8434 piocb
->sli4_lxritag
= sglq
->sli4_lxritag
;
8435 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
8436 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
8440 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
8443 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
8444 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
8445 if (unlikely(!phba
->sli4_hba
.fcp_wq
))
8447 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
8451 if (unlikely(!phba
->sli4_hba
.els_wq
))
8453 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
8456 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
8462 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8464 * This routine wraps the actual lockless version for issusing IOCB function
8465 * pointer from the lpfc_hba struct.
8468 * IOCB_ERROR - Error
8469 * IOCB_SUCCESS - Success
8473 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
8474 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8476 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
8480 * lpfc_sli_api_table_setup - Set up sli api function jump table
8481 * @phba: The hba struct for which this call is being executed.
8482 * @dev_grp: The HBA PCI-Device group number.
8484 * This routine sets up the SLI interface API function jump table in @phba
8486 * Returns: 0 - success, -ENODEV - failure.
8489 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
8493 case LPFC_PCI_DEV_LP
:
8494 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
8495 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
8497 case LPFC_PCI_DEV_OC
:
8498 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
8499 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
8502 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8503 "1419 Invalid HBA PCI-device group: 0x%x\n",
8508 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
8513 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
8514 * @phba: Pointer to HBA context object.
8515 * @pring: Pointer to driver SLI ring object.
8516 * @piocb: Pointer to command iocb.
8517 * @flag: Flag indicating if this command can be put into txq.
8519 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
8520 * function. This function gets the hbalock and calls
8521 * __lpfc_sli_issue_iocb function and will return the error returned
8522 * by __lpfc_sli_issue_iocb function. This wrapper is used by
8523 * functions which do not hold hbalock.
8526 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
8527 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8529 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
8530 struct lpfc_sli_ring
*pring
;
8531 struct lpfc_queue
*fpeq
;
8532 struct lpfc_eqe
*eqe
;
8533 unsigned long iflags
;
8536 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
8537 if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
8538 if (unlikely(!phba
->sli4_hba
.fcp_wq
))
8540 idx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
8541 piocb
->fcp_wqidx
= idx
;
8542 ring_number
= MAX_SLI3_CONFIGURED_RINGS
+ idx
;
8544 pring
= &phba
->sli
.ring
[ring_number
];
8545 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
8546 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
8548 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
8550 if (lpfc_fcp_look_ahead
) {
8551 fcp_eq_hdl
= &phba
->sli4_hba
.fcp_eq_hdl
[idx
];
8553 if (atomic_dec_and_test(&fcp_eq_hdl
->
8556 /* Get associated EQ with this index */
8557 fpeq
= phba
->sli4_hba
.hba_eq
[idx
];
8559 /* Turn off interrupts from this EQ */
8560 lpfc_sli4_eq_clr_intr(fpeq
);
8563 * Process all the events on FCP EQ
8565 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
8566 lpfc_sli4_hba_handle_eqe(phba
,
8568 fpeq
->EQ_processed
++;
8571 /* Always clear and re-arm the EQ */
8572 lpfc_sli4_eq_release(fpeq
,
8575 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
8578 pring
= &phba
->sli
.ring
[ring_number
];
8579 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
8580 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
8582 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
8586 /* For now, SLI2/3 will still use hbalock */
8587 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8588 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
8589 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8595 * lpfc_extra_ring_setup - Extra ring setup function
8596 * @phba: Pointer to HBA context object.
8598 * This function is called while driver attaches with the
8599 * HBA to setup the extra ring. The extra ring is used
8600 * only when driver needs to support target mode functionality
8601 * or IP over FC functionalities.
8603 * This function is called with no lock held.
8606 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
8608 struct lpfc_sli
*psli
;
8609 struct lpfc_sli_ring
*pring
;
8613 /* Adjust cmd/rsp ring iocb entries more evenly */
8615 /* Take some away from the FCP ring */
8616 pring
= &psli
->ring
[psli
->fcp_ring
];
8617 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
8618 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
8619 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
8620 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
8622 /* and give them to the extra ring */
8623 pring
= &psli
->ring
[psli
->extra_ring
];
8625 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
8626 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
8627 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
8628 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
8630 /* Setup default profile for this ring */
8631 pring
->iotag_max
= 4096;
8632 pring
->num_mask
= 1;
8633 pring
->prt
[0].profile
= 0; /* Mask 0 */
8634 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
8635 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
8636 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
8640 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
8641 * @phba: Pointer to HBA context object.
8642 * @iocbq: Pointer to iocb object.
8644 * The async_event handler calls this routine when it receives
8645 * an ASYNC_STATUS_CN event from the port. The port generates
8646 * this event when an Abort Sequence request to an rport fails
8647 * twice in succession. The abort could be originated by the
8648 * driver or by the port. The ABTS could have been for an ELS
8649 * or FCP IO. The port only generates this event when an ABTS
8650 * fails to complete after one retry.
8653 lpfc_sli_abts_err_handler(struct lpfc_hba
*phba
,
8654 struct lpfc_iocbq
*iocbq
)
8656 struct lpfc_nodelist
*ndlp
= NULL
;
8657 uint16_t rpi
= 0, vpi
= 0;
8658 struct lpfc_vport
*vport
= NULL
;
8660 /* The rpi in the ulpContext is vport-sensitive. */
8661 vpi
= iocbq
->iocb
.un
.asyncstat
.sub_ctxt_tag
;
8662 rpi
= iocbq
->iocb
.ulpContext
;
8664 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8665 "3092 Port generated ABTS async event "
8666 "on vpi %d rpi %d status 0x%x\n",
8667 vpi
, rpi
, iocbq
->iocb
.ulpStatus
);
8669 vport
= lpfc_find_vport_by_vpid(phba
, vpi
);
8672 ndlp
= lpfc_findnode_rpi(vport
, rpi
);
8673 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
8676 if (iocbq
->iocb
.ulpStatus
== IOSTAT_LOCAL_REJECT
)
8677 lpfc_sli_abts_recover_port(vport
, ndlp
);
8681 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8682 "3095 Event Context not found, no "
8683 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
8684 iocbq
->iocb
.ulpContext
, iocbq
->iocb
.ulpStatus
,
8688 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
8689 * @phba: pointer to HBA context object.
8690 * @ndlp: nodelist pointer for the impacted rport.
8691 * @axri: pointer to the wcqe containing the failed exchange.
8693 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
8694 * port. The port generates this event when an abort exchange request to an
8695 * rport fails twice in succession with no reply. The abort could be originated
8696 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
8699 lpfc_sli4_abts_err_handler(struct lpfc_hba
*phba
,
8700 struct lpfc_nodelist
*ndlp
,
8701 struct sli4_wcqe_xri_aborted
*axri
)
8703 struct lpfc_vport
*vport
;
8704 uint32_t ext_status
= 0;
8706 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
8707 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8708 "3115 Node Context not found, driver "
8709 "ignoring abts err event\n");
8713 vport
= ndlp
->vport
;
8714 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
8715 "3116 Port generated FCP XRI ABORT event on "
8716 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
8717 ndlp
->vport
->vpi
, phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
],
8718 bf_get(lpfc_wcqe_xa_xri
, axri
),
8719 bf_get(lpfc_wcqe_xa_status
, axri
),
8723 * Catch the ABTS protocol failure case. Older OCe FW releases returned
8724 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
8725 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
8727 ext_status
= axri
->parameter
& IOERR_PARAM_MASK
;
8728 if ((bf_get(lpfc_wcqe_xa_status
, axri
) == IOSTAT_LOCAL_REJECT
) &&
8729 ((ext_status
== IOERR_SEQUENCE_TIMEOUT
) || (ext_status
== 0)))
8730 lpfc_sli_abts_recover_port(vport
, ndlp
);
8734 * lpfc_sli_async_event_handler - ASYNC iocb handler function
8735 * @phba: Pointer to HBA context object.
8736 * @pring: Pointer to driver SLI ring object.
8737 * @iocbq: Pointer to iocb object.
8739 * This function is called by the slow ring event handler
8740 * function when there is an ASYNC event iocb in the ring.
8741 * This function is called with no lock held.
8742 * Currently this function handles only temperature related
8743 * ASYNC events. The function decodes the temperature sensor
8744 * event message and posts events for the management applications.
8747 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
8748 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
8752 struct temp_event temp_event_data
;
8753 struct Scsi_Host
*shost
;
8756 icmd
= &iocbq
->iocb
;
8757 evt_code
= icmd
->un
.asyncstat
.evt_code
;
8760 case ASYNC_TEMP_WARN
:
8761 case ASYNC_TEMP_SAFE
:
8762 temp_event_data
.data
= (uint32_t) icmd
->ulpContext
;
8763 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
8764 if (evt_code
== ASYNC_TEMP_WARN
) {
8765 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
8766 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
8767 "0347 Adapter is very hot, please take "
8768 "corrective action. temperature : %d Celsius\n",
8769 (uint32_t) icmd
->ulpContext
);
8771 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
8772 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
8773 "0340 Adapter temperature is OK now. "
8774 "temperature : %d Celsius\n",
8775 (uint32_t) icmd
->ulpContext
);
8778 /* Send temperature change event to applications */
8779 shost
= lpfc_shost_from_vport(phba
->pport
);
8780 fc_host_post_vendor_event(shost
, fc_get_event_number(),
8781 sizeof(temp_event_data
), (char *) &temp_event_data
,
8784 case ASYNC_STATUS_CN
:
8785 lpfc_sli_abts_err_handler(phba
, iocbq
);
8788 iocb_w
= (uint32_t *) icmd
;
8789 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8790 "0346 Ring %d handler: unexpected ASYNC_STATUS"
8792 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
8793 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
8794 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
8795 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
8796 pring
->ringno
, icmd
->un
.asyncstat
.evt_code
,
8797 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
8798 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
8799 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
8800 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
8808 * lpfc_sli_setup - SLI ring setup function
8809 * @phba: Pointer to HBA context object.
8811 * lpfc_sli_setup sets up rings of the SLI interface with
8812 * number of iocbs per ring and iotags. This function is
8813 * called while driver attach to the HBA and before the
8814 * interrupts are enabled. So there is no need for locking.
8816 * This function always returns 0.
8819 lpfc_sli_setup(struct lpfc_hba
*phba
)
8821 int i
, totiocbsize
= 0;
8822 struct lpfc_sli
*psli
= &phba
->sli
;
8823 struct lpfc_sli_ring
*pring
;
8825 psli
->num_rings
= MAX_SLI3_CONFIGURED_RINGS
;
8826 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8827 psli
->num_rings
+= phba
->cfg_fcp_io_channel
;
8829 psli
->fcp_ring
= LPFC_FCP_RING
;
8830 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
8831 psli
->extra_ring
= LPFC_EXTRA_RING
;
8833 psli
->iocbq_lookup
= NULL
;
8834 psli
->iocbq_lookup_len
= 0;
8835 psli
->last_iotag
= 0;
8837 for (i
= 0; i
< psli
->num_rings
; i
++) {
8838 pring
= &psli
->ring
[i
];
8840 case LPFC_FCP_RING
: /* ring 0 - FCP */
8841 /* numCiocb and numRiocb are used in config_port */
8842 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
8843 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
8844 pring
->sli
.sli3
.numCiocb
+=
8845 SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
8846 pring
->sli
.sli3
.numRiocb
+=
8847 SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
8848 pring
->sli
.sli3
.numCiocb
+=
8849 SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
8850 pring
->sli
.sli3
.numRiocb
+=
8851 SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
8852 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
8853 SLI3_IOCB_CMD_SIZE
:
8855 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
8856 SLI3_IOCB_RSP_SIZE
:
8858 pring
->iotag_ctr
= 0;
8860 (phba
->cfg_hba_queue_depth
* 2);
8861 pring
->fast_iotag
= pring
->iotag_max
;
8862 pring
->num_mask
= 0;
8864 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
8865 /* numCiocb and numRiocb are used in config_port */
8866 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
8867 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
8868 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
8869 SLI3_IOCB_CMD_SIZE
:
8871 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
8872 SLI3_IOCB_RSP_SIZE
:
8874 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
8875 pring
->num_mask
= 0;
8877 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
8878 /* numCiocb and numRiocb are used in config_port */
8879 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
8880 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
8881 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
8882 SLI3_IOCB_CMD_SIZE
:
8884 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
8885 SLI3_IOCB_RSP_SIZE
:
8887 pring
->fast_iotag
= 0;
8888 pring
->iotag_ctr
= 0;
8889 pring
->iotag_max
= 4096;
8890 pring
->lpfc_sli_rcv_async_status
=
8891 lpfc_sli_async_event_handler
;
8892 pring
->num_mask
= LPFC_MAX_RING_MASK
;
8893 pring
->prt
[0].profile
= 0; /* Mask 0 */
8894 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
8895 pring
->prt
[0].type
= FC_TYPE_ELS
;
8896 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
8897 lpfc_els_unsol_event
;
8898 pring
->prt
[1].profile
= 0; /* Mask 1 */
8899 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
8900 pring
->prt
[1].type
= FC_TYPE_ELS
;
8901 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
8902 lpfc_els_unsol_event
;
8903 pring
->prt
[2].profile
= 0; /* Mask 2 */
8904 /* NameServer Inquiry */
8905 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
8907 pring
->prt
[2].type
= FC_TYPE_CT
;
8908 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
8909 lpfc_ct_unsol_event
;
8910 pring
->prt
[3].profile
= 0; /* Mask 3 */
8911 /* NameServer response */
8912 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
8914 pring
->prt
[3].type
= FC_TYPE_CT
;
8915 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
8916 lpfc_ct_unsol_event
;
8919 totiocbsize
+= (pring
->sli
.sli3
.numCiocb
*
8920 pring
->sli
.sli3
.sizeCiocb
) +
8921 (pring
->sli
.sli3
.numRiocb
* pring
->sli
.sli3
.sizeRiocb
);
8923 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
8924 /* Too many cmd / rsp ring entries in SLI2 SLIM */
8925 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
8926 "SLI2 SLIM Data: x%x x%lx\n",
8927 phba
->brd_no
, totiocbsize
,
8928 (unsigned long) MAX_SLIM_IOCB_SIZE
);
8930 if (phba
->cfg_multi_ring_support
== 2)
8931 lpfc_extra_ring_setup(phba
);
8937 * lpfc_sli_queue_setup - Queue initialization function
8938 * @phba: Pointer to HBA context object.
8940 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
8941 * ring. This function also initializes ring indices of each ring.
8942 * This function is called during the initialization of the SLI
8943 * interface of an HBA.
8944 * This function is called with no lock held and always returns
8948 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
8950 struct lpfc_sli
*psli
;
8951 struct lpfc_sli_ring
*pring
;
8955 spin_lock_irq(&phba
->hbalock
);
8956 INIT_LIST_HEAD(&psli
->mboxq
);
8957 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
8958 /* Initialize list headers for txq and txcmplq as double linked lists */
8959 for (i
= 0; i
< psli
->num_rings
; i
++) {
8960 pring
= &psli
->ring
[i
];
8962 pring
->sli
.sli3
.next_cmdidx
= 0;
8963 pring
->sli
.sli3
.local_getidx
= 0;
8964 pring
->sli
.sli3
.cmdidx
= 0;
8965 INIT_LIST_HEAD(&pring
->txq
);
8966 INIT_LIST_HEAD(&pring
->txcmplq
);
8967 INIT_LIST_HEAD(&pring
->iocb_continueq
);
8968 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
8969 INIT_LIST_HEAD(&pring
->postbufq
);
8970 spin_lock_init(&pring
->ring_lock
);
8972 spin_unlock_irq(&phba
->hbalock
);
8977 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
8978 * @phba: Pointer to HBA context object.
8980 * This routine flushes the mailbox command subsystem. It will unconditionally
8981 * flush all the mailbox commands in the three possible stages in the mailbox
8982 * command sub-system: pending mailbox command queue; the outstanding mailbox
8983 * command; and completed mailbox command queue. It is caller's responsibility
8984 * to make sure that the driver is in the proper state to flush the mailbox
8985 * command sub-system. Namely, the posting of mailbox commands into the
8986 * pending mailbox command queue from the various clients must be stopped;
8987 * either the HBA is in a state that it will never works on the outstanding
8988 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
8989 * mailbox command has been completed.
8992 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
8994 LIST_HEAD(completions
);
8995 struct lpfc_sli
*psli
= &phba
->sli
;
8997 unsigned long iflag
;
8999 /* Flush all the mailbox commands in the mbox system */
9000 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9001 /* The pending mailbox command queue */
9002 list_splice_init(&phba
->sli
.mboxq
, &completions
);
9003 /* The outstanding active mailbox command */
9004 if (psli
->mbox_active
) {
9005 list_add_tail(&psli
->mbox_active
->list
, &completions
);
9006 psli
->mbox_active
= NULL
;
9007 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
9009 /* The completed mailbox command queue */
9010 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
9011 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9013 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9014 while (!list_empty(&completions
)) {
9015 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
9016 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
9018 pmb
->mbox_cmpl(phba
, pmb
);
9023 * lpfc_sli_host_down - Vport cleanup function
9024 * @vport: Pointer to virtual port object.
9026 * lpfc_sli_host_down is called to clean up the resources
9027 * associated with a vport before destroying virtual
9028 * port data structures.
9029 * This function does following operations:
9030 * - Free discovery resources associated with this virtual
9032 * - Free iocbs associated with this virtual port in
9034 * - Send abort for all iocb commands associated with this
9037 * This function is called with no lock held and always returns 1.
9040 lpfc_sli_host_down(struct lpfc_vport
*vport
)
9042 LIST_HEAD(completions
);
9043 struct lpfc_hba
*phba
= vport
->phba
;
9044 struct lpfc_sli
*psli
= &phba
->sli
;
9045 struct lpfc_sli_ring
*pring
;
9046 struct lpfc_iocbq
*iocb
, *next_iocb
;
9048 unsigned long flags
= 0;
9049 uint16_t prev_pring_flag
;
9051 lpfc_cleanup_discovery_resources(vport
);
9053 spin_lock_irqsave(&phba
->hbalock
, flags
);
9054 for (i
= 0; i
< psli
->num_rings
; i
++) {
9055 pring
= &psli
->ring
[i
];
9056 prev_pring_flag
= pring
->flag
;
9057 /* Only slow rings */
9058 if (pring
->ringno
== LPFC_ELS_RING
) {
9059 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9060 /* Set the lpfc data pending flag */
9061 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9064 * Error everything on the txq since these iocbs have not been
9065 * given to the FW yet.
9067 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
9068 if (iocb
->vport
!= vport
)
9070 list_move_tail(&iocb
->list
, &completions
);
9073 /* Next issue ABTS for everything on the txcmplq */
9074 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
9076 if (iocb
->vport
!= vport
)
9078 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
9081 pring
->flag
= prev_pring_flag
;
9084 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9086 /* Cancel all the IOCBs from the completions list */
9087 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9093 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9094 * @phba: Pointer to HBA context object.
9096 * This function cleans up all iocb, buffers, mailbox commands
9097 * while shutting down the HBA. This function is called with no
9098 * lock held and always returns 1.
9099 * This function does the following to cleanup driver resources:
9100 * - Free discovery resources for each virtual port
9101 * - Cleanup any pending fabric iocbs
9102 * - Iterate through the iocb txq and free each entry
9104 * - Free up any buffer posted to the HBA
9105 * - Free mailbox commands in the mailbox queue.
9108 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
9110 LIST_HEAD(completions
);
9111 struct lpfc_sli
*psli
= &phba
->sli
;
9112 struct lpfc_sli_ring
*pring
;
9113 struct lpfc_dmabuf
*buf_ptr
;
9114 unsigned long flags
= 0;
9117 /* Shutdown the mailbox command sub-system */
9118 lpfc_sli_mbox_sys_shutdown(phba
, LPFC_MBX_WAIT
);
9120 lpfc_hba_down_prep(phba
);
9122 lpfc_fabric_abort_hba(phba
);
9124 spin_lock_irqsave(&phba
->hbalock
, flags
);
9125 for (i
= 0; i
< psli
->num_rings
; i
++) {
9126 pring
= &psli
->ring
[i
];
9127 /* Only slow rings */
9128 if (pring
->ringno
== LPFC_ELS_RING
) {
9129 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9130 /* Set the lpfc data pending flag */
9131 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9135 * Error everything on the txq since these iocbs have not been
9136 * given to the FW yet.
9138 list_splice_init(&pring
->txq
, &completions
);
9140 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9142 /* Cancel all the IOCBs from the completions list */
9143 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9146 spin_lock_irqsave(&phba
->hbalock
, flags
);
9147 list_splice_init(&phba
->elsbuf
, &completions
);
9148 phba
->elsbuf_cnt
= 0;
9149 phba
->elsbuf_prev_cnt
= 0;
9150 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9152 while (!list_empty(&completions
)) {
9153 list_remove_head(&completions
, buf_ptr
,
9154 struct lpfc_dmabuf
, list
);
9155 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
9159 /* Return any active mbox cmds */
9160 del_timer_sync(&psli
->mbox_tmo
);
9162 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
9163 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
9164 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
9170 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9171 * @srcp: Source memory pointer.
9172 * @destp: Destination memory pointer.
9173 * @cnt: Number of words required to be copied.
9175 * This function is used for copying data between driver memory
9176 * and the SLI memory. This function also changes the endianness
9177 * of each word if native endianness is different from SLI
9178 * endianness. This function can be called with or without
9182 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9184 uint32_t *src
= srcp
;
9185 uint32_t *dest
= destp
;
9189 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
9191 ldata
= le32_to_cpu(ldata
);
9200 * lpfc_sli_bemem_bcopy - SLI memory copy function
9201 * @srcp: Source memory pointer.
9202 * @destp: Destination memory pointer.
9203 * @cnt: Number of words required to be copied.
9205 * This function is used for copying data between a data structure
9206 * with big endian representation to local endianness.
9207 * This function can be called with or without lock.
9210 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9212 uint32_t *src
= srcp
;
9213 uint32_t *dest
= destp
;
9217 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
9219 ldata
= be32_to_cpu(ldata
);
9227 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9228 * @phba: Pointer to HBA context object.
9229 * @pring: Pointer to driver SLI ring object.
9230 * @mp: Pointer to driver buffer object.
9232 * This function is called with no lock held.
9233 * It always return zero after adding the buffer to the postbufq
9237 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9238 struct lpfc_dmabuf
*mp
)
9240 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9242 spin_lock_irq(&phba
->hbalock
);
9243 list_add_tail(&mp
->list
, &pring
->postbufq
);
9244 pring
->postbufq_cnt
++;
9245 spin_unlock_irq(&phba
->hbalock
);
9250 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9251 * @phba: Pointer to HBA context object.
9253 * When HBQ is enabled, buffers are searched based on tags. This function
9254 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9255 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9256 * does not conflict with tags of buffer posted for unsolicited events.
9257 * The function returns the allocated tag. The function is called with
9261 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
9263 spin_lock_irq(&phba
->hbalock
);
9264 phba
->buffer_tag_count
++;
9266 * Always set the QUE_BUFTAG_BIT to distiguish between
9267 * a tag assigned by HBQ.
9269 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
9270 spin_unlock_irq(&phba
->hbalock
);
9271 return phba
->buffer_tag_count
;
9275 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9276 * @phba: Pointer to HBA context object.
9277 * @pring: Pointer to driver SLI ring object.
9280 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9281 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9282 * iocb is posted to the response ring with the tag of the buffer.
9283 * This function searches the pring->postbufq list using the tag
9284 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9285 * iocb. If the buffer is found then lpfc_dmabuf object of the
9286 * buffer is returned to the caller else NULL is returned.
9287 * This function is called with no lock held.
9289 struct lpfc_dmabuf
*
9290 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9293 struct lpfc_dmabuf
*mp
, *next_mp
;
9294 struct list_head
*slp
= &pring
->postbufq
;
9296 /* Search postbufq, from the beginning, looking for a match on tag */
9297 spin_lock_irq(&phba
->hbalock
);
9298 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9299 if (mp
->buffer_tag
== tag
) {
9300 list_del_init(&mp
->list
);
9301 pring
->postbufq_cnt
--;
9302 spin_unlock_irq(&phba
->hbalock
);
9307 spin_unlock_irq(&phba
->hbalock
);
9308 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9309 "0402 Cannot find virtual addr for buffer tag on "
9310 "ring %d Data x%lx x%p x%p x%x\n",
9311 pring
->ringno
, (unsigned long) tag
,
9312 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9318 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9319 * @phba: Pointer to HBA context object.
9320 * @pring: Pointer to driver SLI ring object.
9321 * @phys: DMA address of the buffer.
9323 * This function searches the buffer list using the dma_address
9324 * of unsolicited event to find the driver's lpfc_dmabuf object
9325 * corresponding to the dma_address. The function returns the
9326 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9327 * This function is called by the ct and els unsolicited event
9328 * handlers to get the buffer associated with the unsolicited
9331 * This function is called with no lock held.
9333 struct lpfc_dmabuf
*
9334 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9337 struct lpfc_dmabuf
*mp
, *next_mp
;
9338 struct list_head
*slp
= &pring
->postbufq
;
9340 /* Search postbufq, from the beginning, looking for a match on phys */
9341 spin_lock_irq(&phba
->hbalock
);
9342 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9343 if (mp
->phys
== phys
) {
9344 list_del_init(&mp
->list
);
9345 pring
->postbufq_cnt
--;
9346 spin_unlock_irq(&phba
->hbalock
);
9351 spin_unlock_irq(&phba
->hbalock
);
9352 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9353 "0410 Cannot find virtual addr for mapped buf on "
9354 "ring %d Data x%llx x%p x%p x%x\n",
9355 pring
->ringno
, (unsigned long long)phys
,
9356 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9361 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9362 * @phba: Pointer to HBA context object.
9363 * @cmdiocb: Pointer to driver command iocb object.
9364 * @rspiocb: Pointer to driver response iocb object.
9366 * This function is the completion handler for the abort iocbs for
9367 * ELS commands. This function is called from the ELS ring event
9368 * handler with no lock held. This function frees memory resources
9369 * associated with the abort iocb.
9372 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9373 struct lpfc_iocbq
*rspiocb
)
9375 IOCB_t
*irsp
= &rspiocb
->iocb
;
9376 uint16_t abort_iotag
, abort_context
;
9377 struct lpfc_iocbq
*abort_iocb
= NULL
;
9379 if (irsp
->ulpStatus
) {
9382 * Assume that the port already completed and returned, or
9383 * will return the iocb. Just Log the message.
9385 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
9386 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
9388 spin_lock_irq(&phba
->hbalock
);
9389 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
9390 if (abort_iotag
!= 0 &&
9391 abort_iotag
<= phba
->sli
.last_iotag
)
9393 phba
->sli
.iocbq_lookup
[abort_iotag
];
9395 /* For sli4 the abort_tag is the XRI,
9396 * so the abort routine puts the iotag of the iocb
9397 * being aborted in the context field of the abort
9400 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
9402 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
9403 "0327 Cannot abort els iocb %p "
9404 "with tag %x context %x, abort status %x, "
9406 abort_iocb
, abort_iotag
, abort_context
,
9407 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
9409 spin_unlock_irq(&phba
->hbalock
);
9411 lpfc_sli_release_iocbq(phba
, cmdiocb
);
9416 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9417 * @phba: Pointer to HBA context object.
9418 * @cmdiocb: Pointer to driver command iocb object.
9419 * @rspiocb: Pointer to driver response iocb object.
9421 * The function is called from SLI ring event handler with no
9422 * lock held. This function is the completion handler for ELS commands
9423 * which are aborted. The function frees memory resources used for
9424 * the aborted ELS commands.
9427 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9428 struct lpfc_iocbq
*rspiocb
)
9430 IOCB_t
*irsp
= &rspiocb
->iocb
;
9432 /* ELS cmd tag <ulpIoTag> completes */
9433 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
9434 "0139 Ignoring ELS cmd tag x%x completion Data: "
9436 irsp
->ulpIoTag
, irsp
->ulpStatus
,
9437 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
9438 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
9439 lpfc_ct_free_iocb(phba
, cmdiocb
);
9441 lpfc_els_free_iocb(phba
, cmdiocb
);
9446 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9447 * @phba: Pointer to HBA context object.
9448 * @pring: Pointer to driver SLI ring object.
9449 * @cmdiocb: Pointer to driver command iocb object.
9451 * This function issues an abort iocb for the provided command iocb down to
9452 * the port. Other than the case the outstanding command iocb is an abort
9453 * request, this function issues abort out unconditionally. This function is
9454 * called with hbalock held. The function returns 0 when it fails due to
9455 * memory allocation failure or when the command iocb is an abort request.
9458 lpfc_sli_abort_iotag_issue(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9459 struct lpfc_iocbq
*cmdiocb
)
9461 struct lpfc_vport
*vport
= cmdiocb
->vport
;
9462 struct lpfc_iocbq
*abtsiocbp
;
9463 IOCB_t
*icmd
= NULL
;
9464 IOCB_t
*iabt
= NULL
;
9466 unsigned long iflags
;
9469 * There are certain command types we don't want to abort. And we
9470 * don't want to abort commands that are already in the process of
9473 icmd
= &cmdiocb
->iocb
;
9474 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
9475 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
9476 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
9479 /* issue ABTS for this IOCB based on iotag */
9480 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
9481 if (abtsiocbp
== NULL
)
9484 /* This signals the response to set the correct status
9485 * before calling the completion handler
9487 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
9489 iabt
= &abtsiocbp
->iocb
;
9490 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
9491 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
9492 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9493 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
9494 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
9497 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
9499 iabt
->ulpClass
= icmd
->ulpClass
;
9501 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9502 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
9503 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
9504 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
9506 if (phba
->link_state
>= LPFC_LINK_UP
)
9507 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
9509 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
9511 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
9513 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
9514 "0339 Abort xri x%x, original iotag x%x, "
9515 "abort cmd iotag x%x\n",
9516 iabt
->un
.acxri
.abortIoTag
,
9517 iabt
->un
.acxri
.abortContextTag
,
9520 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9521 /* Note: both hbalock and ring_lock need to be set here */
9522 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
9523 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
9525 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
9527 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
9532 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
9535 * Caller to this routine should check for IOCB_ERROR
9536 * and handle it properly. This routine no longer removes
9537 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9543 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
9544 * @phba: Pointer to HBA context object.
9545 * @pring: Pointer to driver SLI ring object.
9546 * @cmdiocb: Pointer to driver command iocb object.
9548 * This function issues an abort iocb for the provided command iocb. In case
9549 * of unloading, the abort iocb will not be issued to commands on the ELS
9550 * ring. Instead, the callback function shall be changed to those commands
9551 * so that nothing happens when them finishes. This function is called with
9552 * hbalock held. The function returns 0 when the command iocb is an abort
9556 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9557 struct lpfc_iocbq
*cmdiocb
)
9559 struct lpfc_vport
*vport
= cmdiocb
->vport
;
9560 int retval
= IOCB_ERROR
;
9561 IOCB_t
*icmd
= NULL
;
9564 * There are certain command types we don't want to abort. And we
9565 * don't want to abort commands that are already in the process of
9568 icmd
= &cmdiocb
->iocb
;
9569 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
9570 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
9571 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
9575 * If we're unloading, don't abort iocb on the ELS ring, but change
9576 * the callback so that nothing happens when it finishes.
9578 if ((vport
->load_flag
& FC_UNLOADING
) &&
9579 (pring
->ringno
== LPFC_ELS_RING
)) {
9580 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
9581 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
9583 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
9584 goto abort_iotag_exit
;
9587 /* Now, we try to issue the abort to the cmdiocb out */
9588 retval
= lpfc_sli_abort_iotag_issue(phba
, pring
, cmdiocb
);
9592 * Caller to this routine should check for IOCB_ERROR
9593 * and handle it properly. This routine no longer removes
9594 * iocb off txcmplq and call compl in case of IOCB_ERROR.
9600 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
9601 * @phba: Pointer to HBA context object.
9602 * @pring: Pointer to driver SLI ring object.
9604 * This function aborts all iocbs in the given ring and frees all the iocb
9605 * objects in txq. This function issues abort iocbs unconditionally for all
9606 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
9607 * to complete before the return of this function. The caller is not required
9608 * to hold any locks.
9611 lpfc_sli_iocb_ring_abort(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
9613 LIST_HEAD(completions
);
9614 struct lpfc_iocbq
*iocb
, *next_iocb
;
9616 if (pring
->ringno
== LPFC_ELS_RING
)
9617 lpfc_fabric_abort_hba(phba
);
9619 spin_lock_irq(&phba
->hbalock
);
9621 /* Take off all the iocbs on txq for cancelling */
9622 list_splice_init(&pring
->txq
, &completions
);
9625 /* Next issue ABTS for everything on the txcmplq */
9626 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
9627 lpfc_sli_abort_iotag_issue(phba
, pring
, iocb
);
9629 spin_unlock_irq(&phba
->hbalock
);
9631 /* Cancel all the IOCBs from the completions list */
9632 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9637 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
9638 * @phba: pointer to lpfc HBA data structure.
9640 * This routine will abort all pending and outstanding iocbs to an HBA.
9643 lpfc_sli_hba_iocb_abort(struct lpfc_hba
*phba
)
9645 struct lpfc_sli
*psli
= &phba
->sli
;
9646 struct lpfc_sli_ring
*pring
;
9649 for (i
= 0; i
< psli
->num_rings
; i
++) {
9650 pring
= &psli
->ring
[i
];
9651 lpfc_sli_iocb_ring_abort(phba
, pring
);
9656 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
9657 * @iocbq: Pointer to driver iocb object.
9658 * @vport: Pointer to driver virtual port object.
9659 * @tgt_id: SCSI ID of the target.
9660 * @lun_id: LUN ID of the scsi device.
9661 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
9663 * This function acts as an iocb filter for functions which abort or count
9664 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
9665 * 0 if the filtering criteria is met for the given iocb and will return
9666 * 1 if the filtering criteria is not met.
9667 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
9668 * given iocb is for the SCSI device specified by vport, tgt_id and
9670 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
9671 * given iocb is for the SCSI target specified by vport and tgt_id
9673 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
9674 * given iocb is for the SCSI host associated with the given vport.
9675 * This function is called with no locks held.
9678 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
9679 uint16_t tgt_id
, uint64_t lun_id
,
9680 lpfc_ctx_cmd ctx_cmd
)
9682 struct lpfc_scsi_buf
*lpfc_cmd
;
9685 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
9688 if (iocbq
->vport
!= vport
)
9691 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
9693 if (lpfc_cmd
->pCmd
== NULL
)
9698 if ((lpfc_cmd
->rdata
->pnode
) &&
9699 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
9700 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
9704 if ((lpfc_cmd
->rdata
->pnode
) &&
9705 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
9712 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
9721 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
9722 * @vport: Pointer to virtual port.
9723 * @tgt_id: SCSI ID of the target.
9724 * @lun_id: LUN ID of the scsi device.
9725 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9727 * This function returns number of FCP commands pending for the vport.
9728 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
9729 * commands pending on the vport associated with SCSI device specified
9730 * by tgt_id and lun_id parameters.
9731 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
9732 * commands pending on the vport associated with SCSI target specified
9733 * by tgt_id parameter.
9734 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
9735 * commands pending on the vport.
9736 * This function returns the number of iocbs which satisfy the filter.
9737 * This function is called without any lock held.
9740 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
9741 lpfc_ctx_cmd ctx_cmd
)
9743 struct lpfc_hba
*phba
= vport
->phba
;
9744 struct lpfc_iocbq
*iocbq
;
9747 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
9748 iocbq
= phba
->sli
.iocbq_lookup
[i
];
9750 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
9759 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
9760 * @phba: Pointer to HBA context object
9761 * @cmdiocb: Pointer to command iocb object.
9762 * @rspiocb: Pointer to response iocb object.
9764 * This function is called when an aborted FCP iocb completes. This
9765 * function is called by the ring event handler with no lock held.
9766 * This function frees the iocb.
9769 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9770 struct lpfc_iocbq
*rspiocb
)
9772 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9773 "3096 ABORT_XRI_CN completing on rpi x%x "
9774 "original iotag x%x, abort cmd iotag x%x "
9775 "status 0x%x, reason 0x%x\n",
9776 cmdiocb
->iocb
.un
.acxri
.abortContextTag
,
9777 cmdiocb
->iocb
.un
.acxri
.abortIoTag
,
9778 cmdiocb
->iotag
, rspiocb
->iocb
.ulpStatus
,
9779 rspiocb
->iocb
.un
.ulpWord
[4]);
9780 lpfc_sli_release_iocbq(phba
, cmdiocb
);
9785 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
9786 * @vport: Pointer to virtual port.
9787 * @pring: Pointer to driver SLI ring object.
9788 * @tgt_id: SCSI ID of the target.
9789 * @lun_id: LUN ID of the scsi device.
9790 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
9792 * This function sends an abort command for every SCSI command
9793 * associated with the given virtual port pending on the ring
9794 * filtered by lpfc_sli_validate_fcp_iocb function.
9795 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
9796 * FCP iocbs associated with lun specified by tgt_id and lun_id
9798 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
9799 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
9800 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
9801 * FCP iocbs associated with virtual port.
9802 * This function returns number of iocbs it failed to abort.
9803 * This function is called with no locks held.
9806 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
9807 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
9809 struct lpfc_hba
*phba
= vport
->phba
;
9810 struct lpfc_iocbq
*iocbq
;
9811 struct lpfc_iocbq
*abtsiocb
;
9813 int errcnt
= 0, ret_val
= 0;
9816 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
9817 iocbq
= phba
->sli
.iocbq_lookup
[i
];
9819 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
9823 /* issue ABTS for this IOCB based on iotag */
9824 abtsiocb
= lpfc_sli_get_iocbq(phba
);
9825 if (abtsiocb
== NULL
) {
9831 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
9832 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
9833 if (phba
->sli_rev
== LPFC_SLI_REV4
)
9834 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
9836 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
9837 abtsiocb
->iocb
.ulpLe
= 1;
9838 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
9839 abtsiocb
->vport
= phba
->pport
;
9841 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9842 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
9843 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
9844 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
9846 if (lpfc_is_link_up(phba
))
9847 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
9849 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
9851 /* Setup callback routine and issue the command. */
9852 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
9853 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
9855 if (ret_val
== IOCB_ERROR
) {
9856 lpfc_sli_release_iocbq(phba
, abtsiocb
);
9866 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
9867 * @phba: Pointer to HBA context object.
9868 * @cmdiocbq: Pointer to command iocb.
9869 * @rspiocbq: Pointer to response iocb.
9871 * This function is the completion handler for iocbs issued using
9872 * lpfc_sli_issue_iocb_wait function. This function is called by the
9873 * ring event handler function without any lock held. This function
9874 * can be called from both worker thread context and interrupt
9875 * context. This function also can be called from other thread which
9876 * cleans up the SLI layer objects.
9877 * This function copy the contents of the response iocb to the
9878 * response iocb memory object provided by the caller of
9879 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
9880 * sleeps for the iocb completion.
9883 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
9884 struct lpfc_iocbq
*cmdiocbq
,
9885 struct lpfc_iocbq
*rspiocbq
)
9887 wait_queue_head_t
*pdone_q
;
9888 unsigned long iflags
;
9889 struct lpfc_scsi_buf
*lpfc_cmd
;
9891 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9892 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
9893 if (cmdiocbq
->context2
&& rspiocbq
)
9894 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
9895 &rspiocbq
->iocb
, sizeof(IOCB_t
));
9897 /* Set the exchange busy flag for task management commands */
9898 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
9899 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
9900 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
9902 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
9905 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
9908 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9913 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
9914 * @phba: Pointer to HBA context object..
9915 * @piocbq: Pointer to command iocb.
9916 * @flag: Flag to test.
9918 * This routine grabs the hbalock and then test the iocb_flag to
9919 * see if the passed in flag is set.
9922 * 0 if flag is not set.
9925 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
9926 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
9928 unsigned long iflags
;
9931 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9932 ret
= piocbq
->iocb_flag
& flag
;
9933 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9939 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
9940 * @phba: Pointer to HBA context object..
9941 * @pring: Pointer to sli ring.
9942 * @piocb: Pointer to command iocb.
9943 * @prspiocbq: Pointer to response iocb.
9944 * @timeout: Timeout in number of seconds.
9946 * This function issues the iocb to firmware and waits for the
9947 * iocb to complete. If the iocb command is not
9948 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
9949 * Caller should not free the iocb resources if this function
9950 * returns IOCB_TIMEDOUT.
9951 * The function waits for the iocb completion using an
9952 * non-interruptible wait.
9953 * This function will sleep while waiting for iocb completion.
9954 * So, this function should not be called from any context which
9955 * does not allow sleeping. Due to the same reason, this function
9956 * cannot be called with interrupt disabled.
9957 * This function assumes that the iocb completions occur while
9958 * this function sleep. So, this function cannot be called from
9959 * the thread which process iocb completion for this ring.
9960 * This function clears the iocb_flag of the iocb object before
9961 * issuing the iocb and the iocb completion handler sets this
9962 * flag and wakes this thread when the iocb completes.
9963 * The contents of the response iocb will be copied to prspiocbq
9964 * by the completion handler when the command completes.
9965 * This function returns IOCB_SUCCESS when success.
9966 * This function is called with no lock held.
9969 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
9970 uint32_t ring_number
,
9971 struct lpfc_iocbq
*piocb
,
9972 struct lpfc_iocbq
*prspiocbq
,
9975 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
9976 long timeleft
, timeout_req
= 0;
9977 int retval
= IOCB_SUCCESS
;
9979 struct lpfc_iocbq
*iocb
;
9981 int txcmplq_cnt
= 0;
9982 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9984 * If the caller has provided a response iocbq buffer, then context2
9985 * is NULL or its an error.
9988 if (piocb
->context2
)
9990 piocb
->context2
= prspiocbq
;
9993 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
9994 piocb
->context_un
.wait_queue
= &done_q
;
9995 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
9997 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
9998 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10000 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
10001 writel(creg_val
, phba
->HCregaddr
);
10002 readl(phba
->HCregaddr
); /* flush */
10005 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
10006 SLI_IOCB_RET_IOCB
);
10007 if (retval
== IOCB_SUCCESS
) {
10008 timeout_req
= msecs_to_jiffies(timeout
* 1000);
10009 timeleft
= wait_event_timeout(done_q
,
10010 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
10013 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
10014 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10015 "0331 IOCB wake signaled\n");
10016 } else if (timeleft
== 0) {
10017 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10018 "0338 IOCB wait timeout error - no "
10019 "wake response Data x%x\n", timeout
);
10020 retval
= IOCB_TIMEDOUT
;
10022 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10023 "0330 IOCB wake NOT set, "
10025 timeout
, (timeleft
/ jiffies
));
10026 retval
= IOCB_TIMEDOUT
;
10028 } else if (retval
== IOCB_BUSY
) {
10029 if (phba
->cfg_log_verbose
& LOG_SLI
) {
10030 list_for_each_entry(iocb
, &pring
->txq
, list
) {
10033 list_for_each_entry(iocb
, &pring
->txcmplq
, list
) {
10036 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10037 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10038 phba
->iocb_cnt
, txq_cnt
, txcmplq_cnt
);
10042 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10043 "0332 IOCB wait issue failed, Data x%x\n",
10045 retval
= IOCB_ERROR
;
10048 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
10049 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10051 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
10052 writel(creg_val
, phba
->HCregaddr
);
10053 readl(phba
->HCregaddr
); /* flush */
10057 piocb
->context2
= NULL
;
10059 piocb
->context_un
.wait_queue
= NULL
;
10060 piocb
->iocb_cmpl
= NULL
;
10065 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10066 * @phba: Pointer to HBA context object.
10067 * @pmboxq: Pointer to driver mailbox object.
10068 * @timeout: Timeout in number of seconds.
10070 * This function issues the mailbox to firmware and waits for the
10071 * mailbox command to complete. If the mailbox command is not
10072 * completed within timeout seconds, it returns MBX_TIMEOUT.
10073 * The function waits for the mailbox completion using an
10074 * interruptible wait. If the thread is woken up due to a
10075 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10076 * should not free the mailbox resources, if this function returns
10078 * This function will sleep while waiting for mailbox completion.
10079 * So, this function should not be called from any context which
10080 * does not allow sleeping. Due to the same reason, this function
10081 * cannot be called with interrupt disabled.
10082 * This function assumes that the mailbox completion occurs while
10083 * this function sleep. So, this function cannot be called from
10084 * the worker thread which processes mailbox completion.
10085 * This function is called in the context of HBA management
10087 * This function returns MBX_SUCCESS when successful.
10088 * This function is called with no lock held.
10091 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
10094 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
10095 MAILBOX_t
*mb
= NULL
;
10097 unsigned long flag
;
10099 /* The caller might set context1 for extended buffer */
10100 if (pmboxq
->context1
)
10101 mb
= (MAILBOX_t
*)pmboxq
->context1
;
10103 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
10104 /* setup wake call as IOCB callback */
10105 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
10106 /* setup context field to pass wait_queue pointer to wake function */
10107 pmboxq
->context1
= &done_q
;
10109 /* now issue the command */
10110 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
10111 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
10112 wait_event_interruptible_timeout(done_q
,
10113 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
10114 msecs_to_jiffies(timeout
* 1000));
10116 spin_lock_irqsave(&phba
->hbalock
, flag
);
10117 /* restore the possible extended buffer for free resource */
10118 pmboxq
->context1
= (uint8_t *)mb
;
10120 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10121 * else do not free the resources.
10123 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
10124 retval
= MBX_SUCCESS
;
10125 lpfc_sli4_swap_str(phba
, pmboxq
);
10127 retval
= MBX_TIMEOUT
;
10128 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10130 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
10132 /* restore the possible extended buffer for free resource */
10133 pmboxq
->context1
= (uint8_t *)mb
;
10140 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10141 * @phba: Pointer to HBA context.
10143 * This function is called to shutdown the driver's mailbox sub-system.
10144 * It first marks the mailbox sub-system is in a block state to prevent
10145 * the asynchronous mailbox command from issued off the pending mailbox
10146 * command queue. If the mailbox command sub-system shutdown is due to
10147 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10148 * the mailbox sub-system flush routine to forcefully bring down the
10149 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10150 * as with offline or HBA function reset), this routine will wait for the
10151 * outstanding mailbox command to complete before invoking the mailbox
10152 * sub-system flush routine to gracefully bring down mailbox sub-system.
10155 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
, int mbx_action
)
10157 struct lpfc_sli
*psli
= &phba
->sli
;
10158 unsigned long timeout
;
10160 if (mbx_action
== LPFC_MBX_NO_WAIT
) {
10161 /* delay 100ms for port state */
10163 lpfc_sli_mbox_sys_flush(phba
);
10166 timeout
= msecs_to_jiffies(LPFC_MBOX_TMO
* 1000) + jiffies
;
10168 spin_lock_irq(&phba
->hbalock
);
10169 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
10171 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
10172 /* Determine how long we might wait for the active mailbox
10173 * command to be gracefully completed by firmware.
10175 if (phba
->sli
.mbox_active
)
10176 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
10177 phba
->sli
.mbox_active
) *
10179 spin_unlock_irq(&phba
->hbalock
);
10181 while (phba
->sli
.mbox_active
) {
10182 /* Check active mailbox complete status every 2ms */
10184 if (time_after(jiffies
, timeout
))
10185 /* Timeout, let the mailbox flush routine to
10186 * forcefully release active mailbox command
10191 spin_unlock_irq(&phba
->hbalock
);
10193 lpfc_sli_mbox_sys_flush(phba
);
10197 * lpfc_sli_eratt_read - read sli-3 error attention events
10198 * @phba: Pointer to HBA context.
10200 * This function is called to read the SLI3 device error attention registers
10201 * for possible error attention events. The caller must hold the hostlock
10202 * with spin_lock_irq().
10204 * This function returns 1 when there is Error Attention in the Host Attention
10205 * Register and returns 0 otherwise.
10208 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
10212 /* Read chip Host Attention (HA) register */
10213 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
10216 if (ha_copy
& HA_ERATT
) {
10217 /* Read host status register to retrieve error event */
10218 if (lpfc_sli_read_hs(phba
))
10221 /* Check if there is a deferred error condition is active */
10222 if ((HS_FFER1
& phba
->work_hs
) &&
10223 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
10224 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
10225 phba
->hba_flag
|= DEFER_ERATT
;
10226 /* Clear all interrupt enable conditions */
10227 writel(0, phba
->HCregaddr
);
10228 readl(phba
->HCregaddr
);
10231 /* Set the driver HA work bitmap */
10232 phba
->work_ha
|= HA_ERATT
;
10233 /* Indicate polling handles this ERATT */
10234 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10240 /* Set the driver HS work bitmap */
10241 phba
->work_hs
|= UNPLUG_ERR
;
10242 /* Set the driver HA work bitmap */
10243 phba
->work_ha
|= HA_ERATT
;
10244 /* Indicate polling handles this ERATT */
10245 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10250 * lpfc_sli4_eratt_read - read sli-4 error attention events
10251 * @phba: Pointer to HBA context.
10253 * This function is called to read the SLI4 device error attention registers
10254 * for possible error attention events. The caller must hold the hostlock
10255 * with spin_lock_irq().
10257 * This function returns 1 when there is Error Attention in the Host Attention
10258 * Register and returns 0 otherwise.
10261 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
10263 uint32_t uerr_sta_hi
, uerr_sta_lo
;
10264 uint32_t if_type
, portsmphr
;
10265 struct lpfc_register portstat_reg
;
10268 * For now, use the SLI4 device internal unrecoverable error
10269 * registers for error attention. This can be changed later.
10271 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
10273 case LPFC_SLI_INTF_IF_TYPE_0
:
10274 if (lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
,
10276 lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
,
10278 phba
->work_hs
|= UNPLUG_ERR
;
10279 phba
->work_ha
|= HA_ERATT
;
10280 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10283 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
10284 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
10285 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10286 "1423 HBA Unrecoverable error: "
10287 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10288 "ue_mask_lo_reg=0x%x, "
10289 "ue_mask_hi_reg=0x%x\n",
10290 uerr_sta_lo
, uerr_sta_hi
,
10291 phba
->sli4_hba
.ue_mask_lo
,
10292 phba
->sli4_hba
.ue_mask_hi
);
10293 phba
->work_status
[0] = uerr_sta_lo
;
10294 phba
->work_status
[1] = uerr_sta_hi
;
10295 phba
->work_ha
|= HA_ERATT
;
10296 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10300 case LPFC_SLI_INTF_IF_TYPE_2
:
10301 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
10302 &portstat_reg
.word0
) ||
10303 lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
10305 phba
->work_hs
|= UNPLUG_ERR
;
10306 phba
->work_ha
|= HA_ERATT
;
10307 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10310 if (bf_get(lpfc_sliport_status_err
, &portstat_reg
)) {
10311 phba
->work_status
[0] =
10312 readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
10313 phba
->work_status
[1] =
10314 readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
10315 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10316 "2885 Port Status Event: "
10317 "port status reg 0x%x, "
10318 "port smphr reg 0x%x, "
10319 "error 1=0x%x, error 2=0x%x\n",
10320 portstat_reg
.word0
,
10322 phba
->work_status
[0],
10323 phba
->work_status
[1]);
10324 phba
->work_ha
|= HA_ERATT
;
10325 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10329 case LPFC_SLI_INTF_IF_TYPE_1
:
10331 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10332 "2886 HBA Error Attention on unsupported "
10333 "if type %d.", if_type
);
10341 * lpfc_sli_check_eratt - check error attention events
10342 * @phba: Pointer to HBA context.
10344 * This function is called from timer soft interrupt context to check HBA's
10345 * error attention register bit for error attention events.
10347 * This function returns 1 when there is Error Attention in the Host Attention
10348 * Register and returns 0 otherwise.
10351 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
10355 /* If somebody is waiting to handle an eratt, don't process it
10356 * here. The brdkill function will do this.
10358 if (phba
->link_flag
& LS_IGNORE_ERATT
)
10361 /* Check if interrupt handler handles this ERATT */
10362 spin_lock_irq(&phba
->hbalock
);
10363 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
10364 /* Interrupt handler has handled ERATT */
10365 spin_unlock_irq(&phba
->hbalock
);
10370 * If there is deferred error attention, do not check for error
10373 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
10374 spin_unlock_irq(&phba
->hbalock
);
10378 /* If PCI channel is offline, don't process it */
10379 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
10380 spin_unlock_irq(&phba
->hbalock
);
10384 switch (phba
->sli_rev
) {
10385 case LPFC_SLI_REV2
:
10386 case LPFC_SLI_REV3
:
10387 /* Read chip Host Attention (HA) register */
10388 ha_copy
= lpfc_sli_eratt_read(phba
);
10390 case LPFC_SLI_REV4
:
10391 /* Read device Uncoverable Error (UERR) registers */
10392 ha_copy
= lpfc_sli4_eratt_read(phba
);
10395 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10396 "0299 Invalid SLI revision (%d)\n",
10401 spin_unlock_irq(&phba
->hbalock
);
10407 * lpfc_intr_state_check - Check device state for interrupt handling
10408 * @phba: Pointer to HBA context.
10410 * This inline routine checks whether a device or its PCI slot is in a state
10411 * that the interrupt should be handled.
10413 * This function returns 0 if the device or the PCI slot is in a state that
10414 * interrupt should be handled, otherwise -EIO.
10417 lpfc_intr_state_check(struct lpfc_hba
*phba
)
10419 /* If the pci channel is offline, ignore all the interrupts */
10420 if (unlikely(pci_channel_offline(phba
->pcidev
)))
10423 /* Update device level interrupt statistics */
10424 phba
->sli
.slistat
.sli_intr
++;
10426 /* Ignore all interrupts during initialization. */
10427 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
10434 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
10435 * @irq: Interrupt number.
10436 * @dev_id: The device context pointer.
10438 * This function is directly called from the PCI layer as an interrupt
10439 * service routine when device with SLI-3 interface spec is enabled with
10440 * MSI-X multi-message interrupt mode and there are slow-path events in
10441 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
10442 * interrupt mode, this function is called as part of the device-level
10443 * interrupt handler. When the PCI slot is in error recovery or the HBA
10444 * is undergoing initialization, the interrupt handler will not process
10445 * the interrupt. The link attention and ELS ring attention events are
10446 * handled by the worker thread. The interrupt handler signals the worker
10447 * thread and returns for these events. This function is called without
10448 * any lock held. It gets the hbalock to access and update SLI data
10451 * This function returns IRQ_HANDLED when interrupt is handled else it
10452 * returns IRQ_NONE.
10455 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
10457 struct lpfc_hba
*phba
;
10458 uint32_t ha_copy
, hc_copy
;
10459 uint32_t work_ha_copy
;
10460 unsigned long status
;
10461 unsigned long iflag
;
10464 MAILBOX_t
*mbox
, *pmbox
;
10465 struct lpfc_vport
*vport
;
10466 struct lpfc_nodelist
*ndlp
;
10467 struct lpfc_dmabuf
*mp
;
10472 * Get the driver's phba structure from the dev_id and
10473 * assume the HBA is not interrupting.
10475 phba
= (struct lpfc_hba
*)dev_id
;
10477 if (unlikely(!phba
))
10481 * Stuff needs to be attented to when this function is invoked as an
10482 * individual interrupt handler in MSI-X multi-message interrupt mode
10484 if (phba
->intr_type
== MSIX
) {
10485 /* Check device state for handling interrupt */
10486 if (lpfc_intr_state_check(phba
))
10488 /* Need to read HA REG for slow-path events */
10489 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10490 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
10492 /* If somebody is waiting to handle an eratt don't process it
10493 * here. The brdkill function will do this.
10495 if (phba
->link_flag
& LS_IGNORE_ERATT
)
10496 ha_copy
&= ~HA_ERATT
;
10497 /* Check the need for handling ERATT in interrupt handler */
10498 if (ha_copy
& HA_ERATT
) {
10499 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
10500 /* ERATT polling has handled ERATT */
10501 ha_copy
&= ~HA_ERATT
;
10503 /* Indicate interrupt handler handles ERATT */
10504 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10508 * If there is deferred error attention, do not check for any
10511 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
10512 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10516 /* Clear up only attention source related to slow-path */
10517 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
10520 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
10521 HC_LAINT_ENA
| HC_ERINT_ENA
),
10523 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
10525 writel(hc_copy
, phba
->HCregaddr
);
10526 readl(phba
->HAregaddr
); /* flush */
10527 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10529 ha_copy
= phba
->ha_copy
;
10531 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
10533 if (work_ha_copy
) {
10534 if (work_ha_copy
& HA_LATT
) {
10535 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
10537 * Turn off Link Attention interrupts
10538 * until CLEAR_LA done
10540 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10541 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
10542 if (lpfc_readl(phba
->HCregaddr
, &control
))
10544 control
&= ~HC_LAINT_ENA
;
10545 writel(control
, phba
->HCregaddr
);
10546 readl(phba
->HCregaddr
); /* flush */
10547 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10550 work_ha_copy
&= ~HA_LATT
;
10553 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
10555 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
10556 * the only slow ring.
10558 status
= (work_ha_copy
&
10559 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
10560 status
>>= (4*LPFC_ELS_RING
);
10561 if (status
& HA_RXMASK
) {
10562 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10563 if (lpfc_readl(phba
->HCregaddr
, &control
))
10566 lpfc_debugfs_slow_ring_trc(phba
,
10567 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
10569 (uint32_t)phba
->sli
.slistat
.sli_intr
);
10571 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
10572 lpfc_debugfs_slow_ring_trc(phba
,
10573 "ISR Disable ring:"
10574 "pwork:x%x hawork:x%x wait:x%x",
10575 phba
->work_ha
, work_ha_copy
,
10576 (uint32_t)((unsigned long)
10577 &phba
->work_waitq
));
10580 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
10581 writel(control
, phba
->HCregaddr
);
10582 readl(phba
->HCregaddr
); /* flush */
10585 lpfc_debugfs_slow_ring_trc(phba
,
10586 "ISR slow ring: pwork:"
10587 "x%x hawork:x%x wait:x%x",
10588 phba
->work_ha
, work_ha_copy
,
10589 (uint32_t)((unsigned long)
10590 &phba
->work_waitq
));
10592 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10595 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10596 if (work_ha_copy
& HA_ERATT
) {
10597 if (lpfc_sli_read_hs(phba
))
10600 * Check if there is a deferred error condition
10603 if ((HS_FFER1
& phba
->work_hs
) &&
10604 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
10605 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
10607 phba
->hba_flag
|= DEFER_ERATT
;
10608 /* Clear all interrupt enable conditions */
10609 writel(0, phba
->HCregaddr
);
10610 readl(phba
->HCregaddr
);
10614 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
10615 pmb
= phba
->sli
.mbox_active
;
10616 pmbox
= &pmb
->u
.mb
;
10618 vport
= pmb
->vport
;
10620 /* First check out the status word */
10621 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
10622 if (pmbox
->mbxOwner
!= OWN_HOST
) {
10623 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10625 * Stray Mailbox Interrupt, mbxCommand <cmd>
10626 * mbxStatus <status>
10628 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
10630 "(%d):0304 Stray Mailbox "
10631 "Interrupt mbxCommand x%x "
10633 (vport
? vport
->vpi
: 0),
10636 /* clear mailbox attention bit */
10637 work_ha_copy
&= ~HA_MBATT
;
10639 phba
->sli
.mbox_active
= NULL
;
10640 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10641 phba
->last_completion_time
= jiffies
;
10642 del_timer(&phba
->sli
.mbox_tmo
);
10643 if (pmb
->mbox_cmpl
) {
10644 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
10646 if (pmb
->out_ext_byte_len
&&
10648 lpfc_sli_pcimem_bcopy(
10651 pmb
->out_ext_byte_len
);
10653 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
10654 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
10656 lpfc_debugfs_disc_trc(vport
,
10657 LPFC_DISC_TRC_MBOX_VPORT
,
10658 "MBOX dflt rpi: : "
10659 "status:x%x rpi:x%x",
10660 (uint32_t)pmbox
->mbxStatus
,
10661 pmbox
->un
.varWords
[0], 0);
10663 if (!pmbox
->mbxStatus
) {
10664 mp
= (struct lpfc_dmabuf
*)
10666 ndlp
= (struct lpfc_nodelist
*)
10669 /* Reg_LOGIN of dflt RPI was
10670 * successful. new lets get
10671 * rid of the RPI using the
10672 * same mbox buffer.
10674 lpfc_unreg_login(phba
,
10676 pmbox
->un
.varWords
[0],
10679 lpfc_mbx_cmpl_dflt_rpi
;
10680 pmb
->context1
= mp
;
10681 pmb
->context2
= ndlp
;
10682 pmb
->vport
= vport
;
10683 rc
= lpfc_sli_issue_mbox(phba
,
10686 if (rc
!= MBX_BUSY
)
10687 lpfc_printf_log(phba
,
10689 LOG_MBOX
| LOG_SLI
,
10690 "0350 rc should have"
10691 "been MBX_BUSY\n");
10692 if (rc
!= MBX_NOT_FINISHED
)
10693 goto send_current_mbox
;
10697 &phba
->pport
->work_port_lock
,
10699 phba
->pport
->work_port_events
&=
10701 spin_unlock_irqrestore(
10702 &phba
->pport
->work_port_lock
,
10704 lpfc_mbox_cmpl_put(phba
, pmb
);
10707 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10709 if ((work_ha_copy
& HA_MBATT
) &&
10710 (phba
->sli
.mbox_active
== NULL
)) {
10712 /* Process next mailbox command if there is one */
10714 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
10716 } while (rc
== MBX_NOT_FINISHED
);
10717 if (rc
!= MBX_SUCCESS
)
10718 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
10719 LOG_SLI
, "0349 rc should be "
10723 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10724 phba
->work_ha
|= work_ha_copy
;
10725 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10726 lpfc_worker_wake_up(phba
);
10728 return IRQ_HANDLED
;
10730 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10731 return IRQ_HANDLED
;
10733 } /* lpfc_sli_sp_intr_handler */
10736 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
10737 * @irq: Interrupt number.
10738 * @dev_id: The device context pointer.
10740 * This function is directly called from the PCI layer as an interrupt
10741 * service routine when device with SLI-3 interface spec is enabled with
10742 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10743 * ring event in the HBA. However, when the device is enabled with either
10744 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10745 * device-level interrupt handler. When the PCI slot is in error recovery
10746 * or the HBA is undergoing initialization, the interrupt handler will not
10747 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10748 * the intrrupt context. This function is called without any lock held.
10749 * It gets the hbalock to access and update SLI data structures.
10751 * This function returns IRQ_HANDLED when interrupt is handled else it
10752 * returns IRQ_NONE.
10755 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
10757 struct lpfc_hba
*phba
;
10759 unsigned long status
;
10760 unsigned long iflag
;
10762 /* Get the driver's phba structure from the dev_id and
10763 * assume the HBA is not interrupting.
10765 phba
= (struct lpfc_hba
*) dev_id
;
10767 if (unlikely(!phba
))
10771 * Stuff needs to be attented to when this function is invoked as an
10772 * individual interrupt handler in MSI-X multi-message interrupt mode
10774 if (phba
->intr_type
== MSIX
) {
10775 /* Check device state for handling interrupt */
10776 if (lpfc_intr_state_check(phba
))
10778 /* Need to read HA REG for FCP ring and other ring events */
10779 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
10780 return IRQ_HANDLED
;
10781 /* Clear up only attention source related to fast-path */
10782 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10784 * If there is deferred error attention, do not check for
10787 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
10788 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10791 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
10793 readl(phba
->HAregaddr
); /* flush */
10794 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10796 ha_copy
= phba
->ha_copy
;
10799 * Process all events on FCP ring. Take the optimized path for FCP IO.
10801 ha_copy
&= ~(phba
->work_ha_mask
);
10803 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
10804 status
>>= (4*LPFC_FCP_RING
);
10805 if (status
& HA_RXMASK
)
10806 lpfc_sli_handle_fast_ring_event(phba
,
10807 &phba
->sli
.ring
[LPFC_FCP_RING
],
10810 if (phba
->cfg_multi_ring_support
== 2) {
10812 * Process all events on extra ring. Take the optimized path
10813 * for extra ring IO.
10815 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
10816 status
>>= (4*LPFC_EXTRA_RING
);
10817 if (status
& HA_RXMASK
) {
10818 lpfc_sli_handle_fast_ring_event(phba
,
10819 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
10823 return IRQ_HANDLED
;
10824 } /* lpfc_sli_fp_intr_handler */
10827 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
10828 * @irq: Interrupt number.
10829 * @dev_id: The device context pointer.
10831 * This function is the HBA device-level interrupt handler to device with
10832 * SLI-3 interface spec, called from the PCI layer when either MSI or
10833 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
10834 * requires driver attention. This function invokes the slow-path interrupt
10835 * attention handling function and fast-path interrupt attention handling
10836 * function in turn to process the relevant HBA attention events. This
10837 * function is called without any lock held. It gets the hbalock to access
10838 * and update SLI data structures.
10840 * This function returns IRQ_HANDLED when interrupt is handled, else it
10841 * returns IRQ_NONE.
10844 lpfc_sli_intr_handler(int irq
, void *dev_id
)
10846 struct lpfc_hba
*phba
;
10847 irqreturn_t sp_irq_rc
, fp_irq_rc
;
10848 unsigned long status1
, status2
;
10852 * Get the driver's phba structure from the dev_id and
10853 * assume the HBA is not interrupting.
10855 phba
= (struct lpfc_hba
*) dev_id
;
10857 if (unlikely(!phba
))
10860 /* Check device state for handling interrupt */
10861 if (lpfc_intr_state_check(phba
))
10864 spin_lock(&phba
->hbalock
);
10865 if (lpfc_readl(phba
->HAregaddr
, &phba
->ha_copy
)) {
10866 spin_unlock(&phba
->hbalock
);
10867 return IRQ_HANDLED
;
10870 if (unlikely(!phba
->ha_copy
)) {
10871 spin_unlock(&phba
->hbalock
);
10873 } else if (phba
->ha_copy
& HA_ERATT
) {
10874 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
10875 /* ERATT polling has handled ERATT */
10876 phba
->ha_copy
&= ~HA_ERATT
;
10878 /* Indicate interrupt handler handles ERATT */
10879 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10883 * If there is deferred error attention, do not check for any interrupt.
10885 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
10886 spin_unlock(&phba
->hbalock
);
10890 /* Clear attention sources except link and error attentions */
10891 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
)) {
10892 spin_unlock(&phba
->hbalock
);
10893 return IRQ_HANDLED
;
10895 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
10896 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
10898 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
10899 writel(hc_copy
, phba
->HCregaddr
);
10900 readl(phba
->HAregaddr
); /* flush */
10901 spin_unlock(&phba
->hbalock
);
10904 * Invokes slow-path host attention interrupt handling as appropriate.
10907 /* status of events with mailbox and link attention */
10908 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
10910 /* status of events with ELS ring */
10911 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
10912 status2
>>= (4*LPFC_ELS_RING
);
10914 if (status1
|| (status2
& HA_RXMASK
))
10915 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
10917 sp_irq_rc
= IRQ_NONE
;
10920 * Invoke fast-path host attention interrupt handling as appropriate.
10923 /* status of events with FCP ring */
10924 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
10925 status1
>>= (4*LPFC_FCP_RING
);
10927 /* status of events with extra ring */
10928 if (phba
->cfg_multi_ring_support
== 2) {
10929 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
10930 status2
>>= (4*LPFC_EXTRA_RING
);
10934 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
10935 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
10937 fp_irq_rc
= IRQ_NONE
;
10939 /* Return device-level interrupt handling status */
10940 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
10941 } /* lpfc_sli_intr_handler */
10944 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
10945 * @phba: pointer to lpfc hba data structure.
10947 * This routine is invoked by the worker thread to process all the pending
10948 * SLI4 FCP abort XRI events.
10950 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
10952 struct lpfc_cq_event
*cq_event
;
10954 /* First, declare the fcp xri abort event has been handled */
10955 spin_lock_irq(&phba
->hbalock
);
10956 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
10957 spin_unlock_irq(&phba
->hbalock
);
10958 /* Now, handle all the fcp xri abort events */
10959 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
10960 /* Get the first event from the head of the event queue */
10961 spin_lock_irq(&phba
->hbalock
);
10962 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
10963 cq_event
, struct lpfc_cq_event
, list
);
10964 spin_unlock_irq(&phba
->hbalock
);
10965 /* Notify aborted XRI for FCP work queue */
10966 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
10967 /* Free the event processed back to the free pool */
10968 lpfc_sli4_cq_event_release(phba
, cq_event
);
10973 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
10974 * @phba: pointer to lpfc hba data structure.
10976 * This routine is invoked by the worker thread to process all the pending
10977 * SLI4 els abort xri events.
10979 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
10981 struct lpfc_cq_event
*cq_event
;
10983 /* First, declare the els xri abort event has been handled */
10984 spin_lock_irq(&phba
->hbalock
);
10985 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
10986 spin_unlock_irq(&phba
->hbalock
);
10987 /* Now, handle all the els xri abort events */
10988 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
10989 /* Get the first event from the head of the event queue */
10990 spin_lock_irq(&phba
->hbalock
);
10991 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
10992 cq_event
, struct lpfc_cq_event
, list
);
10993 spin_unlock_irq(&phba
->hbalock
);
10994 /* Notify aborted XRI for ELS work queue */
10995 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
10996 /* Free the event processed back to the free pool */
10997 lpfc_sli4_cq_event_release(phba
, cq_event
);
11002 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11003 * @phba: pointer to lpfc hba data structure
11004 * @pIocbIn: pointer to the rspiocbq
11005 * @pIocbOut: pointer to the cmdiocbq
11006 * @wcqe: pointer to the complete wcqe
11008 * This routine transfers the fields of a command iocbq to a response iocbq
11009 * by copying all the IOCB fields from command iocbq and transferring the
11010 * completion status information from the complete wcqe.
11013 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
11014 struct lpfc_iocbq
*pIocbIn
,
11015 struct lpfc_iocbq
*pIocbOut
,
11016 struct lpfc_wcqe_complete
*wcqe
)
11018 unsigned long iflags
;
11020 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
11022 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
11023 sizeof(struct lpfc_iocbq
) - offset
);
11024 /* Map WCQE parameters into irspiocb parameters */
11025 status
= bf_get(lpfc_wcqe_c_status
, wcqe
);
11026 pIocbIn
->iocb
.ulpStatus
= (status
& LPFC_IOCB_STATUS_MASK
);
11027 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
11028 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
11029 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
11030 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
11031 wcqe
->total_data_placed
;
11033 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11035 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11036 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
11039 /* Convert BG errors for completion status */
11040 if (status
== CQE_STATUS_DI_ERROR
) {
11041 pIocbIn
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
11043 if (bf_get(lpfc_wcqe_c_bg_edir
, wcqe
))
11044 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_RX_DMA_FAILED
;
11046 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_TX_DMA_FAILED
;
11048 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
= 0;
11049 if (bf_get(lpfc_wcqe_c_bg_ge
, wcqe
)) /* Guard Check failed */
11050 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11051 BGS_GUARD_ERR_MASK
;
11052 if (bf_get(lpfc_wcqe_c_bg_ae
, wcqe
)) /* App Tag Check failed */
11053 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11054 BGS_APPTAG_ERR_MASK
;
11055 if (bf_get(lpfc_wcqe_c_bg_re
, wcqe
)) /* Ref Tag Check failed */
11056 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11057 BGS_REFTAG_ERR_MASK
;
11059 /* Check to see if there was any good data before the error */
11060 if (bf_get(lpfc_wcqe_c_bg_tdpv
, wcqe
)) {
11061 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11062 BGS_HI_WATER_MARK_PRESENT_MASK
;
11063 pIocbIn
->iocb
.unsli3
.sli3_bg
.bghm
=
11064 wcqe
->total_data_placed
;
11068 * Set ALL the error bits to indicate we don't know what
11069 * type of error it is.
11071 if (!pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
)
11072 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11073 (BGS_REFTAG_ERR_MASK
| BGS_APPTAG_ERR_MASK
|
11074 BGS_GUARD_ERR_MASK
);
11077 /* Pick up HBA exchange busy condition */
11078 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
11079 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11080 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
11081 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11086 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11087 * @phba: Pointer to HBA context object.
11088 * @wcqe: Pointer to work-queue completion queue entry.
11090 * This routine handles an ELS work-queue completion event and construct
11091 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11092 * discovery engine to handle.
11094 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11096 static struct lpfc_iocbq
*
11097 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
11098 struct lpfc_iocbq
*irspiocbq
)
11100 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
11101 struct lpfc_iocbq
*cmdiocbq
;
11102 struct lpfc_wcqe_complete
*wcqe
;
11103 unsigned long iflags
;
11105 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
11106 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
11107 pring
->stats
.iocb_event
++;
11108 /* Look up the ELS command IOCB and create pseudo response IOCB */
11109 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
11110 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11111 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
11113 if (unlikely(!cmdiocbq
)) {
11114 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11115 "0386 ELS complete with no corresponding "
11116 "cmdiocb: iotag (%d)\n",
11117 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11118 lpfc_sli_release_iocbq(phba
, irspiocbq
);
11122 /* Fake the irspiocbq and copy necessary response information */
11123 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
11129 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11130 * @phba: Pointer to HBA context object.
11131 * @cqe: Pointer to mailbox completion queue entry.
11133 * This routine process a mailbox completion queue entry with asynchrous
11136 * Return: true if work posted to worker thread, otherwise false.
11139 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11141 struct lpfc_cq_event
*cq_event
;
11142 unsigned long iflags
;
11144 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
11145 "0392 Async Event: word0:x%x, word1:x%x, "
11146 "word2:x%x, word3:x%x\n", mcqe
->word0
,
11147 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
11149 /* Allocate a new internal CQ_EVENT entry */
11150 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
11152 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11153 "0394 Failed to allocate CQ_EVENT entry\n");
11157 /* Move the CQE into an asynchronous event entry */
11158 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
11159 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11160 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
11161 /* Set the async event flag */
11162 phba
->hba_flag
|= ASYNC_EVENT
;
11163 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11169 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11170 * @phba: Pointer to HBA context object.
11171 * @cqe: Pointer to mailbox completion queue entry.
11173 * This routine process a mailbox completion queue entry with mailbox
11174 * completion event.
11176 * Return: true if work posted to worker thread, otherwise false.
11179 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11181 uint32_t mcqe_status
;
11182 MAILBOX_t
*mbox
, *pmbox
;
11183 struct lpfc_mqe
*mqe
;
11184 struct lpfc_vport
*vport
;
11185 struct lpfc_nodelist
*ndlp
;
11186 struct lpfc_dmabuf
*mp
;
11187 unsigned long iflags
;
11189 bool workposted
= false;
11192 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11193 if (!bf_get(lpfc_trailer_completed
, mcqe
))
11194 goto out_no_mqe_complete
;
11196 /* Get the reference to the active mbox command */
11197 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11198 pmb
= phba
->sli
.mbox_active
;
11199 if (unlikely(!pmb
)) {
11200 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
11201 "1832 No pending MBOX command to handle\n");
11202 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11203 goto out_no_mqe_complete
;
11205 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11207 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
11209 vport
= pmb
->vport
;
11211 /* Reset heartbeat timer */
11212 phba
->last_completion_time
= jiffies
;
11213 del_timer(&phba
->sli
.mbox_tmo
);
11215 /* Move mbox data to caller's mailbox region, do endian swapping */
11216 if (pmb
->mbox_cmpl
&& mbox
)
11217 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
11220 * For mcqe errors, conditionally move a modified error code to
11221 * the mbox so that the error will not be missed.
11223 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
11224 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
11225 if (bf_get(lpfc_mqe_status
, mqe
) == MBX_SUCCESS
)
11226 bf_set(lpfc_mqe_status
, mqe
,
11227 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
11229 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
11230 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
11231 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
11232 "MBOX dflt rpi: status:x%x rpi:x%x",
11234 pmbox
->un
.varWords
[0], 0);
11235 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
11236 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
11237 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
11238 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11239 * RID of the PPI using the same mbox buffer.
11241 lpfc_unreg_login(phba
, vport
->vpi
,
11242 pmbox
->un
.varWords
[0], pmb
);
11243 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
11244 pmb
->context1
= mp
;
11245 pmb
->context2
= ndlp
;
11246 pmb
->vport
= vport
;
11247 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
11248 if (rc
!= MBX_BUSY
)
11249 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11250 LOG_SLI
, "0385 rc should "
11251 "have been MBX_BUSY\n");
11252 if (rc
!= MBX_NOT_FINISHED
)
11253 goto send_current_mbox
;
11256 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
11257 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
11258 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
11260 /* There is mailbox completion work to do */
11261 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11262 __lpfc_mbox_cmpl_put(phba
, pmb
);
11263 phba
->work_ha
|= HA_MBATT
;
11264 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11268 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11269 /* Release the mailbox command posting token */
11270 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
11271 /* Setting active mailbox pointer need to be in sync to flag clear */
11272 phba
->sli
.mbox_active
= NULL
;
11273 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11274 /* Wake up worker thread to post the next pending mailbox command */
11275 lpfc_worker_wake_up(phba
);
11276 out_no_mqe_complete
:
11277 if (bf_get(lpfc_trailer_consumed
, mcqe
))
11278 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
11283 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11284 * @phba: Pointer to HBA context object.
11285 * @cqe: Pointer to mailbox completion queue entry.
11287 * This routine process a mailbox completion queue entry, it invokes the
11288 * proper mailbox complete handling or asynchrous event handling routine
11289 * according to the MCQE's async bit.
11291 * Return: true if work posted to worker thread, otherwise false.
11294 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
11296 struct lpfc_mcqe mcqe
;
11299 /* Copy the mailbox MCQE and convert endian order as needed */
11300 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
11302 /* Invoke the proper event handling routine */
11303 if (!bf_get(lpfc_trailer_async
, &mcqe
))
11304 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
11306 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
11311 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11312 * @phba: Pointer to HBA context object.
11313 * @cq: Pointer to associated CQ
11314 * @wcqe: Pointer to work-queue completion queue entry.
11316 * This routine handles an ELS work-queue completion event.
11318 * Return: true if work posted to worker thread, otherwise false.
11321 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11322 struct lpfc_wcqe_complete
*wcqe
)
11324 struct lpfc_iocbq
*irspiocbq
;
11325 unsigned long iflags
;
11326 struct lpfc_sli_ring
*pring
= cq
->pring
;
11328 int txcmplq_cnt
= 0;
11329 int fcp_txcmplq_cnt
= 0;
11331 /* Get an irspiocbq for later ELS response processing use */
11332 irspiocbq
= lpfc_sli_get_iocbq(phba
);
11334 if (!list_empty(&pring
->txq
))
11336 if (!list_empty(&pring
->txcmplq
))
11338 if (!list_empty(&phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq
))
11340 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11341 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
11342 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
11343 txq_cnt
, phba
->iocb_cnt
,
11349 /* Save off the slow-path queue event for work thread to process */
11350 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
11351 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11352 list_add_tail(&irspiocbq
->cq_event
.list
,
11353 &phba
->sli4_hba
.sp_queue_event
);
11354 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
11355 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11361 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
11362 * @phba: Pointer to HBA context object.
11363 * @wcqe: Pointer to work-queue completion queue entry.
11365 * This routine handles slow-path WQ entry comsumed event by invoking the
11366 * proper WQ release routine to the slow-path WQ.
11369 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
11370 struct lpfc_wcqe_release
*wcqe
)
11372 /* sanity check on queue memory */
11373 if (unlikely(!phba
->sli4_hba
.els_wq
))
11375 /* Check for the slow-path ELS work queue */
11376 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
11377 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
11378 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
11380 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11381 "2579 Slow-path wqe consume event carries "
11382 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
11383 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
11384 phba
->sli4_hba
.els_wq
->queue_id
);
11388 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
11389 * @phba: Pointer to HBA context object.
11390 * @cq: Pointer to a WQ completion queue.
11391 * @wcqe: Pointer to work-queue completion queue entry.
11393 * This routine handles an XRI abort event.
11395 * Return: true if work posted to worker thread, otherwise false.
11398 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
11399 struct lpfc_queue
*cq
,
11400 struct sli4_wcqe_xri_aborted
*wcqe
)
11402 bool workposted
= false;
11403 struct lpfc_cq_event
*cq_event
;
11404 unsigned long iflags
;
11406 /* Allocate a new internal CQ_EVENT entry */
11407 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
11409 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11410 "0602 Failed to allocate CQ_EVENT entry\n");
11414 /* Move the CQE into the proper xri abort event list */
11415 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
11416 switch (cq
->subtype
) {
11418 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11419 list_add_tail(&cq_event
->list
,
11420 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
11421 /* Set the fcp xri abort event flag */
11422 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
11423 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11427 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11428 list_add_tail(&cq_event
->list
,
11429 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
11430 /* Set the els xri abort event flag */
11431 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
11432 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11436 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11437 "0603 Invalid work queue CQE subtype (x%x)\n",
11439 workposted
= false;
11446 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
11447 * @phba: Pointer to HBA context object.
11448 * @rcqe: Pointer to receive-queue completion queue entry.
11450 * This routine process a receive-queue completion queue entry.
11452 * Return: true if work posted to worker thread, otherwise false.
11455 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
11457 bool workposted
= false;
11458 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
11459 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
11460 struct hbq_dmabuf
*dma_buf
;
11461 uint32_t status
, rq_id
;
11462 unsigned long iflags
;
11464 /* sanity check on queue memory */
11465 if (unlikely(!hrq
) || unlikely(!drq
))
11468 if (bf_get(lpfc_cqe_code
, rcqe
) == CQE_CODE_RECEIVE_V1
)
11469 rq_id
= bf_get(lpfc_rcqe_rq_id_v1
, rcqe
);
11471 rq_id
= bf_get(lpfc_rcqe_rq_id
, rcqe
);
11472 if (rq_id
!= hrq
->queue_id
)
11475 status
= bf_get(lpfc_rcqe_status
, rcqe
);
11477 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
11478 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11479 "2537 Receive Frame Truncated!!\n");
11480 hrq
->RQ_buf_trunc
++;
11481 case FC_STATUS_RQ_SUCCESS
:
11482 lpfc_sli4_rq_release(hrq
, drq
);
11483 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11484 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
11486 hrq
->RQ_no_buf_found
++;
11487 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11491 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
11492 /* save off the frame for the word thread to process */
11493 list_add_tail(&dma_buf
->cq_event
.list
,
11494 &phba
->sli4_hba
.sp_queue_event
);
11495 /* Frame received */
11496 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
11497 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11500 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
11501 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
11502 hrq
->RQ_no_posted_buf
++;
11503 /* Post more buffers if possible */
11504 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11505 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
11506 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11515 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
11516 * @phba: Pointer to HBA context object.
11517 * @cq: Pointer to the completion queue.
11518 * @wcqe: Pointer to a completion queue entry.
11520 * This routine process a slow-path work-queue or receive queue completion queue
11523 * Return: true if work posted to worker thread, otherwise false.
11526 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11527 struct lpfc_cqe
*cqe
)
11529 struct lpfc_cqe cqevt
;
11530 bool workposted
= false;
11532 /* Copy the work queue CQE and convert endian order if needed */
11533 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
11535 /* Check and process for different type of WCQE and dispatch */
11536 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
11537 case CQE_CODE_COMPL_WQE
:
11538 /* Process the WQ/RQ complete event */
11539 phba
->last_completion_time
= jiffies
;
11540 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
, cq
,
11541 (struct lpfc_wcqe_complete
*)&cqevt
);
11543 case CQE_CODE_RELEASE_WQE
:
11544 /* Process the WQ release event */
11545 lpfc_sli4_sp_handle_rel_wcqe(phba
,
11546 (struct lpfc_wcqe_release
*)&cqevt
);
11548 case CQE_CODE_XRI_ABORTED
:
11549 /* Process the WQ XRI abort event */
11550 phba
->last_completion_time
= jiffies
;
11551 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
11552 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
11554 case CQE_CODE_RECEIVE
:
11555 case CQE_CODE_RECEIVE_V1
:
11556 /* Process the RQ event */
11557 phba
->last_completion_time
= jiffies
;
11558 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
11559 (struct lpfc_rcqe
*)&cqevt
);
11562 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11563 "0388 Not a valid WCQE code: x%x\n",
11564 bf_get(lpfc_cqe_code
, &cqevt
));
11571 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
11572 * @phba: Pointer to HBA context object.
11573 * @eqe: Pointer to fast-path event queue entry.
11575 * This routine process a event queue entry from the slow-path event queue.
11576 * It will check the MajorCode and MinorCode to determine this is for a
11577 * completion event on a completion queue, if not, an error shall be logged
11578 * and just return. Otherwise, it will get to the corresponding completion
11579 * queue and process all the entries on that completion queue, rearm the
11580 * completion queue, and then return.
11584 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
11585 struct lpfc_queue
*speq
)
11587 struct lpfc_queue
*cq
= NULL
, *childq
;
11588 struct lpfc_cqe
*cqe
;
11589 bool workposted
= false;
11593 /* Get the reference to the corresponding CQ */
11594 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
11596 list_for_each_entry(childq
, &speq
->child_list
, list
) {
11597 if (childq
->queue_id
== cqid
) {
11602 if (unlikely(!cq
)) {
11603 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
11604 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11605 "0365 Slow-path CQ identifier "
11606 "(%d) does not exist\n", cqid
);
11610 /* Process all the entries to the CQ */
11611 switch (cq
->type
) {
11613 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
11614 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
11615 if (!(++ecount
% cq
->entry_repost
))
11616 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
11621 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
11622 if (cq
->subtype
== LPFC_FCP
)
11623 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
,
11626 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
,
11628 if (!(++ecount
% cq
->entry_repost
))
11629 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
11632 /* Track the max number of CQEs processed in 1 EQ */
11633 if (ecount
> cq
->CQ_max_cqe
)
11634 cq
->CQ_max_cqe
= ecount
;
11637 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11638 "0370 Invalid completion queue type (%d)\n",
11643 /* Catch the no cq entry condition, log an error */
11644 if (unlikely(ecount
== 0))
11645 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11646 "0371 No entry from the CQ: identifier "
11647 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
11649 /* In any case, flash and re-arm the RCQ */
11650 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
11652 /* wake up worker thread if there are works to be done */
11654 lpfc_worker_wake_up(phba
);
11658 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
11659 * @phba: Pointer to HBA context object.
11660 * @cq: Pointer to associated CQ
11661 * @wcqe: Pointer to work-queue completion queue entry.
11663 * This routine process a fast-path work queue completion entry from fast-path
11664 * event queue for FCP command response completion.
11667 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11668 struct lpfc_wcqe_complete
*wcqe
)
11670 struct lpfc_sli_ring
*pring
= cq
->pring
;
11671 struct lpfc_iocbq
*cmdiocbq
;
11672 struct lpfc_iocbq irspiocbq
;
11673 unsigned long iflags
;
11675 /* Check for response status */
11676 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
11677 /* If resource errors reported from HBA, reduce queue
11678 * depth of the SCSI device.
11680 if (((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
11681 IOSTAT_LOCAL_REJECT
)) &&
11682 ((wcqe
->parameter
& IOERR_PARAM_MASK
) ==
11683 IOERR_NO_RESOURCES
))
11684 phba
->lpfc_rampdown_queue_depth(phba
);
11686 /* Log the error status */
11687 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11688 "0373 FCP complete error: status=x%x, "
11689 "hw_status=x%x, total_data_specified=%d, "
11690 "parameter=x%x, word3=x%x\n",
11691 bf_get(lpfc_wcqe_c_status
, wcqe
),
11692 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
11693 wcqe
->total_data_placed
, wcqe
->parameter
,
11697 /* Look up the FCP command IOCB and create pseudo response IOCB */
11698 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
11699 pring
->stats
.iocb_event
++;
11700 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
11701 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11702 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
11703 if (unlikely(!cmdiocbq
)) {
11704 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11705 "0374 FCP complete with no corresponding "
11706 "cmdiocb: iotag (%d)\n",
11707 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11710 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
11711 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11712 "0375 FCP cmdiocb not callback function "
11714 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11718 /* Fake the irspiocb and copy necessary response information */
11719 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
11721 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
11722 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11723 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
11724 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11727 /* Pass the cmd_iocb and the rsp state to the upper layer */
11728 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
11732 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
11733 * @phba: Pointer to HBA context object.
11734 * @cq: Pointer to completion queue.
11735 * @wcqe: Pointer to work-queue completion queue entry.
11737 * This routine handles an fast-path WQ entry comsumed event by invoking the
11738 * proper WQ release routine to the slow-path WQ.
11741 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11742 struct lpfc_wcqe_release
*wcqe
)
11744 struct lpfc_queue
*childwq
;
11745 bool wqid_matched
= false;
11748 /* Check for fast-path FCP work queue release */
11749 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
11750 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
11751 if (childwq
->queue_id
== fcp_wqid
) {
11752 lpfc_sli4_wq_release(childwq
,
11753 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
11754 wqid_matched
= true;
11758 /* Report warning log message if no match found */
11759 if (wqid_matched
!= true)
11760 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11761 "2580 Fast-path wqe consume event carries "
11762 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
11766 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
11767 * @cq: Pointer to the completion queue.
11768 * @eqe: Pointer to fast-path completion queue entry.
11770 * This routine process a fast-path work queue completion entry from fast-path
11771 * event queue for FCP command response completion.
11774 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11775 struct lpfc_cqe
*cqe
)
11777 struct lpfc_wcqe_release wcqe
;
11778 bool workposted
= false;
11780 /* Copy the work queue CQE and convert endian order if needed */
11781 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
11783 /* Check and process for different type of WCQE and dispatch */
11784 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
11785 case CQE_CODE_COMPL_WQE
:
11787 /* Process the WQ complete event */
11788 phba
->last_completion_time
= jiffies
;
11789 lpfc_sli4_fp_handle_fcp_wcqe(phba
, cq
,
11790 (struct lpfc_wcqe_complete
*)&wcqe
);
11792 case CQE_CODE_RELEASE_WQE
:
11793 cq
->CQ_release_wqe
++;
11794 /* Process the WQ release event */
11795 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
11796 (struct lpfc_wcqe_release
*)&wcqe
);
11798 case CQE_CODE_XRI_ABORTED
:
11799 cq
->CQ_xri_aborted
++;
11800 /* Process the WQ XRI abort event */
11801 phba
->last_completion_time
= jiffies
;
11802 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
11803 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
11806 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11807 "0144 Not a valid WCQE code: x%x\n",
11808 bf_get(lpfc_wcqe_c_code
, &wcqe
));
11815 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
11816 * @phba: Pointer to HBA context object.
11817 * @eqe: Pointer to fast-path event queue entry.
11819 * This routine process a event queue entry from the fast-path event queue.
11820 * It will check the MajorCode and MinorCode to determine this is for a
11821 * completion event on a completion queue, if not, an error shall be logged
11822 * and just return. Otherwise, it will get to the corresponding completion
11823 * queue and process all the entries on the completion queue, rearm the
11824 * completion queue, and then return.
11827 lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
11830 struct lpfc_queue
*cq
;
11831 struct lpfc_cqe
*cqe
;
11832 bool workposted
= false;
11836 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
11837 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11838 "0366 Not a valid completion "
11839 "event: majorcode=x%x, minorcode=x%x\n",
11840 bf_get_le32(lpfc_eqe_major_code
, eqe
),
11841 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
11845 /* Get the reference to the corresponding CQ */
11846 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
11848 /* Check if this is a Slow path event */
11849 if (unlikely(cqid
!= phba
->sli4_hba
.fcp_cq_map
[qidx
])) {
11850 lpfc_sli4_sp_handle_eqe(phba
, eqe
,
11851 phba
->sli4_hba
.hba_eq
[qidx
]);
11855 if (unlikely(!phba
->sli4_hba
.fcp_cq
)) {
11856 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11857 "3146 Fast-path completion queues "
11858 "does not exist\n");
11861 cq
= phba
->sli4_hba
.fcp_cq
[qidx
];
11862 if (unlikely(!cq
)) {
11863 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
11864 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11865 "0367 Fast-path completion queue "
11866 "(%d) does not exist\n", qidx
);
11870 if (unlikely(cqid
!= cq
->queue_id
)) {
11871 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11872 "0368 Miss-matched fast-path completion "
11873 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
11874 cqid
, cq
->queue_id
);
11878 /* Process all the entries to the CQ */
11879 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
11880 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
11881 if (!(++ecount
% cq
->entry_repost
))
11882 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
11885 /* Track the max number of CQEs processed in 1 EQ */
11886 if (ecount
> cq
->CQ_max_cqe
)
11887 cq
->CQ_max_cqe
= ecount
;
11889 /* Catch the no cq entry condition */
11890 if (unlikely(ecount
== 0))
11891 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11892 "0369 No entry from fast-path completion "
11893 "queue fcpcqid=%d\n", cq
->queue_id
);
11895 /* In any case, flash and re-arm the CQ */
11896 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
11898 /* wake up worker thread if there are works to be done */
11900 lpfc_worker_wake_up(phba
);
11904 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
11906 struct lpfc_eqe
*eqe
;
11908 /* walk all the EQ entries and drop on the floor */
11909 while ((eqe
= lpfc_sli4_eq_get(eq
)))
11912 /* Clear and re-arm the EQ */
11913 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
11917 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
11918 * @irq: Interrupt number.
11919 * @dev_id: The device context pointer.
11921 * This function is directly called from the PCI layer as an interrupt
11922 * service routine when device with SLI-4 interface spec is enabled with
11923 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11924 * ring event in the HBA. However, when the device is enabled with either
11925 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11926 * device-level interrupt handler. When the PCI slot is in error recovery
11927 * or the HBA is undergoing initialization, the interrupt handler will not
11928 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11929 * the intrrupt context. This function is called without any lock held.
11930 * It gets the hbalock to access and update SLI data structures. Note that,
11931 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
11932 * equal to that of FCP CQ index.
11934 * The link attention and ELS ring attention events are handled
11935 * by the worker thread. The interrupt handler signals the worker thread
11936 * and returns for these events. This function is called without any lock
11937 * held. It gets the hbalock to access and update SLI data structures.
11939 * This function returns IRQ_HANDLED when interrupt is handled else it
11940 * returns IRQ_NONE.
11943 lpfc_sli4_hba_intr_handler(int irq
, void *dev_id
)
11945 struct lpfc_hba
*phba
;
11946 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
11947 struct lpfc_queue
*fpeq
;
11948 struct lpfc_eqe
*eqe
;
11949 unsigned long iflag
;
11953 /* Get the driver's phba structure from the dev_id */
11954 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
11955 phba
= fcp_eq_hdl
->phba
;
11956 fcp_eqidx
= fcp_eq_hdl
->idx
;
11958 if (unlikely(!phba
))
11960 if (unlikely(!phba
->sli4_hba
.hba_eq
))
11963 /* Get to the EQ struct associated with this vector */
11964 fpeq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
11965 if (unlikely(!fpeq
))
11968 if (lpfc_fcp_look_ahead
) {
11969 if (atomic_dec_and_test(&fcp_eq_hdl
->fcp_eq_in_use
))
11970 lpfc_sli4_eq_clr_intr(fpeq
);
11972 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
11977 /* Check device state for handling interrupt */
11978 if (unlikely(lpfc_intr_state_check(phba
))) {
11979 fpeq
->EQ_badstate
++;
11980 /* Check again for link_state with lock held */
11981 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11982 if (phba
->link_state
< LPFC_LINK_DOWN
)
11983 /* Flush, clear interrupt, and rearm the EQ */
11984 lpfc_sli4_eq_flush(phba
, fpeq
);
11985 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11986 if (lpfc_fcp_look_ahead
)
11987 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
11992 * Process all the event on FCP fast-path EQ
11994 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
11995 lpfc_sli4_hba_handle_eqe(phba
, eqe
, fcp_eqidx
);
11996 if (!(++ecount
% fpeq
->entry_repost
))
11997 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
11998 fpeq
->EQ_processed
++;
12001 /* Track the max number of EQEs processed in 1 intr */
12002 if (ecount
> fpeq
->EQ_max_eqe
)
12003 fpeq
->EQ_max_eqe
= ecount
;
12005 /* Always clear and re-arm the fast-path EQ */
12006 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
12008 if (unlikely(ecount
== 0)) {
12009 fpeq
->EQ_no_entry
++;
12011 if (lpfc_fcp_look_ahead
) {
12012 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12016 if (phba
->intr_type
== MSIX
)
12017 /* MSI-X treated interrupt served as no EQ share INT */
12018 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12019 "0358 MSI-X interrupt with no EQE\n");
12021 /* Non MSI-X treated on interrupt as EQ share INT */
12025 if (lpfc_fcp_look_ahead
)
12026 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12027 return IRQ_HANDLED
;
12028 } /* lpfc_sli4_fp_intr_handler */
12031 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12032 * @irq: Interrupt number.
12033 * @dev_id: The device context pointer.
12035 * This function is the device-level interrupt handler to device with SLI-4
12036 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12037 * interrupt mode is enabled and there is an event in the HBA which requires
12038 * driver attention. This function invokes the slow-path interrupt attention
12039 * handling function and fast-path interrupt attention handling function in
12040 * turn to process the relevant HBA attention events. This function is called
12041 * without any lock held. It gets the hbalock to access and update SLI data
12044 * This function returns IRQ_HANDLED when interrupt is handled, else it
12045 * returns IRQ_NONE.
12048 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
12050 struct lpfc_hba
*phba
;
12051 irqreturn_t hba_irq_rc
;
12052 bool hba_handled
= false;
12055 /* Get the driver's phba structure from the dev_id */
12056 phba
= (struct lpfc_hba
*)dev_id
;
12058 if (unlikely(!phba
))
12062 * Invoke fast-path host attention interrupt handling as appropriate.
12064 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
; fcp_eqidx
++) {
12065 hba_irq_rc
= lpfc_sli4_hba_intr_handler(irq
,
12066 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
12067 if (hba_irq_rc
== IRQ_HANDLED
)
12068 hba_handled
|= true;
12071 return (hba_handled
== true) ? IRQ_HANDLED
: IRQ_NONE
;
12072 } /* lpfc_sli4_intr_handler */
12075 * lpfc_sli4_queue_free - free a queue structure and associated memory
12076 * @queue: The queue structure to free.
12078 * This function frees a queue structure and the DMAable memory used for
12079 * the host resident queue. This function must be called after destroying the
12080 * queue on the HBA.
12083 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
12085 struct lpfc_dmabuf
*dmabuf
;
12090 while (!list_empty(&queue
->page_list
)) {
12091 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
12093 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
12094 dmabuf
->virt
, dmabuf
->phys
);
12102 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12103 * @phba: The HBA that this queue is being created on.
12104 * @entry_size: The size of each queue entry for this queue.
12105 * @entry count: The number of entries that this queue will handle.
12107 * This function allocates a queue structure and the DMAable memory used for
12108 * the host resident queue. This function must be called before creating the
12109 * queue on the HBA.
12111 struct lpfc_queue
*
12112 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
12113 uint32_t entry_count
)
12115 struct lpfc_queue
*queue
;
12116 struct lpfc_dmabuf
*dmabuf
;
12117 int x
, total_qe_count
;
12119 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12121 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12122 hw_page_size
= SLI4_PAGE_SIZE
;
12124 queue
= kzalloc(sizeof(struct lpfc_queue
) +
12125 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
12128 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
12129 hw_page_size
))/hw_page_size
;
12130 INIT_LIST_HEAD(&queue
->list
);
12131 INIT_LIST_HEAD(&queue
->page_list
);
12132 INIT_LIST_HEAD(&queue
->child_list
);
12133 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
12134 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
12137 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
12138 hw_page_size
, &dmabuf
->phys
,
12140 if (!dmabuf
->virt
) {
12144 memset(dmabuf
->virt
, 0, hw_page_size
);
12145 dmabuf
->buffer_tag
= x
;
12146 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
12147 /* initialize queue's entry array */
12148 dma_pointer
= dmabuf
->virt
;
12149 for (; total_qe_count
< entry_count
&&
12150 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
12151 total_qe_count
++, dma_pointer
+= entry_size
) {
12152 queue
->qe
[total_qe_count
].address
= dma_pointer
;
12155 queue
->entry_size
= entry_size
;
12156 queue
->entry_count
= entry_count
;
12159 * entry_repost is calculated based on the number of entries in the
12160 * queue. This works out except for RQs. If buffers are NOT initially
12161 * posted for every RQE, entry_repost should be adjusted accordingly.
12163 queue
->entry_repost
= (entry_count
>> 3);
12164 if (queue
->entry_repost
< LPFC_QUEUE_MIN_REPOST
)
12165 queue
->entry_repost
= LPFC_QUEUE_MIN_REPOST
;
12166 queue
->phba
= phba
;
12170 lpfc_sli4_queue_free(queue
);
12175 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
12176 * @phba: HBA structure that indicates port to create a queue on.
12177 * @pci_barset: PCI BAR set flag.
12179 * This function shall perform iomap of the specified PCI BAR address to host
12180 * memory address if not already done so and return it. The returned host
12181 * memory address can be NULL.
12183 static void __iomem
*
12184 lpfc_dual_chute_pci_bar_map(struct lpfc_hba
*phba
, uint16_t pci_barset
)
12186 struct pci_dev
*pdev
;
12187 unsigned long bar_map
, bar_map_len
;
12192 pdev
= phba
->pcidev
;
12194 switch (pci_barset
) {
12195 case WQ_PCI_BAR_0_AND_1
:
12196 if (!phba
->pci_bar0_memmap_p
) {
12197 bar_map
= pci_resource_start(pdev
, PCI_64BIT_BAR0
);
12198 bar_map_len
= pci_resource_len(pdev
, PCI_64BIT_BAR0
);
12199 phba
->pci_bar0_memmap_p
= ioremap(bar_map
, bar_map_len
);
12201 return phba
->pci_bar0_memmap_p
;
12202 case WQ_PCI_BAR_2_AND_3
:
12203 if (!phba
->pci_bar2_memmap_p
) {
12204 bar_map
= pci_resource_start(pdev
, PCI_64BIT_BAR2
);
12205 bar_map_len
= pci_resource_len(pdev
, PCI_64BIT_BAR2
);
12206 phba
->pci_bar2_memmap_p
= ioremap(bar_map
, bar_map_len
);
12208 return phba
->pci_bar2_memmap_p
;
12209 case WQ_PCI_BAR_4_AND_5
:
12210 if (!phba
->pci_bar4_memmap_p
) {
12211 bar_map
= pci_resource_start(pdev
, PCI_64BIT_BAR4
);
12212 bar_map_len
= pci_resource_len(pdev
, PCI_64BIT_BAR4
);
12213 phba
->pci_bar4_memmap_p
= ioremap(bar_map
, bar_map_len
);
12215 return phba
->pci_bar4_memmap_p
;
12223 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
12224 * @phba: HBA structure that indicates port to create a queue on.
12225 * @startq: The starting FCP EQ to modify
12227 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
12229 * The @phba struct is used to send mailbox command to HBA. The @startq
12230 * is used to get the starting FCP EQ to change.
12231 * This function is asynchronous and will wait for the mailbox
12232 * command to finish before continuing.
12234 * On success this function will return a zero. If unable to allocate enough
12235 * memory this function will return -ENOMEM. If the queue create mailbox command
12236 * fails this function will return -ENXIO.
12239 lpfc_modify_fcp_eq_delay(struct lpfc_hba
*phba
, uint16_t startq
)
12241 struct lpfc_mbx_modify_eq_delay
*eq_delay
;
12242 LPFC_MBOXQ_t
*mbox
;
12243 struct lpfc_queue
*eq
;
12244 int cnt
, rc
, length
, status
= 0;
12245 uint32_t shdr_status
, shdr_add_status
;
12248 union lpfc_sli4_cfg_shdr
*shdr
;
12251 if (startq
>= phba
->cfg_fcp_io_channel
)
12254 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12257 length
= (sizeof(struct lpfc_mbx_modify_eq_delay
) -
12258 sizeof(struct lpfc_sli4_cfg_mhdr
));
12259 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
12260 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY
,
12261 length
, LPFC_SLI4_MBX_EMBED
);
12262 eq_delay
= &mbox
->u
.mqe
.un
.eq_delay
;
12264 /* Calculate delay multiper from maximum interrupt per second */
12265 result
= phba
->cfg_fcp_imax
/ phba
->cfg_fcp_io_channel
;
12266 if (result
> LPFC_DMULT_CONST
)
12269 dmult
= LPFC_DMULT_CONST
/result
- 1;
12272 for (fcp_eqidx
= startq
; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
12274 eq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
12277 eq_delay
->u
.request
.eq
[cnt
].eq_id
= eq
->queue_id
;
12278 eq_delay
->u
.request
.eq
[cnt
].phase
= 0;
12279 eq_delay
->u
.request
.eq
[cnt
].delay_multi
= dmult
;
12281 if (cnt
>= LPFC_MAX_EQ_DELAY
)
12284 eq_delay
->u
.request
.num_eq
= cnt
;
12286 mbox
->vport
= phba
->pport
;
12287 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
12288 mbox
->context1
= NULL
;
12289 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12290 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_delay
->header
.cfg_shdr
;
12291 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12292 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12293 if (shdr_status
|| shdr_add_status
|| rc
) {
12294 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12295 "2512 MODIFY_EQ_DELAY mailbox failed with "
12296 "status x%x add_status x%x, mbx status x%x\n",
12297 shdr_status
, shdr_add_status
, rc
);
12300 mempool_free(mbox
, phba
->mbox_mem_pool
);
12305 * lpfc_eq_create - Create an Event Queue on the HBA
12306 * @phba: HBA structure that indicates port to create a queue on.
12307 * @eq: The queue structure to use to create the event queue.
12308 * @imax: The maximum interrupt per second limit.
12310 * This function creates an event queue, as detailed in @eq, on a port,
12311 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
12313 * The @phba struct is used to send mailbox command to HBA. The @eq struct
12314 * is used to get the entry count and entry size that are necessary to
12315 * determine the number of pages to allocate and use for this queue. This
12316 * function will send the EQ_CREATE mailbox command to the HBA to setup the
12317 * event queue. This function is asynchronous and will wait for the mailbox
12318 * command to finish before continuing.
12320 * On success this function will return a zero. If unable to allocate enough
12321 * memory this function will return -ENOMEM. If the queue create mailbox command
12322 * fails this function will return -ENXIO.
12325 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint32_t imax
)
12327 struct lpfc_mbx_eq_create
*eq_create
;
12328 LPFC_MBOXQ_t
*mbox
;
12329 int rc
, length
, status
= 0;
12330 struct lpfc_dmabuf
*dmabuf
;
12331 uint32_t shdr_status
, shdr_add_status
;
12332 union lpfc_sli4_cfg_shdr
*shdr
;
12334 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12336 /* sanity check on queue memory */
12339 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12340 hw_page_size
= SLI4_PAGE_SIZE
;
12342 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12345 length
= (sizeof(struct lpfc_mbx_eq_create
) -
12346 sizeof(struct lpfc_sli4_cfg_mhdr
));
12347 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
12348 LPFC_MBOX_OPCODE_EQ_CREATE
,
12349 length
, LPFC_SLI4_MBX_EMBED
);
12350 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
12351 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
12353 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
12355 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
12356 /* Calculate delay multiper from maximum interrupt per second */
12357 if (imax
> LPFC_DMULT_CONST
)
12360 dmult
= LPFC_DMULT_CONST
/imax
- 1;
12361 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
12363 switch (eq
->entry_count
) {
12365 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12366 "0360 Unsupported EQ count. (%d)\n",
12368 if (eq
->entry_count
< 256)
12370 /* otherwise default to smallest count (drop through) */
12372 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
12376 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
12380 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
12384 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
12388 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
12392 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
12393 memset(dmabuf
->virt
, 0, hw_page_size
);
12394 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
12395 putPaddrLow(dmabuf
->phys
);
12396 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
12397 putPaddrHigh(dmabuf
->phys
);
12399 mbox
->vport
= phba
->pport
;
12400 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
12401 mbox
->context1
= NULL
;
12402 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12403 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
12404 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12405 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12406 if (shdr_status
|| shdr_add_status
|| rc
) {
12407 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12408 "2500 EQ_CREATE mailbox failed with "
12409 "status x%x add_status x%x, mbx status x%x\n",
12410 shdr_status
, shdr_add_status
, rc
);
12413 eq
->type
= LPFC_EQ
;
12414 eq
->subtype
= LPFC_NONE
;
12415 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
12416 if (eq
->queue_id
== 0xFFFF)
12418 eq
->host_index
= 0;
12421 mempool_free(mbox
, phba
->mbox_mem_pool
);
12426 * lpfc_cq_create - Create a Completion Queue on the HBA
12427 * @phba: HBA structure that indicates port to create a queue on.
12428 * @cq: The queue structure to use to create the completion queue.
12429 * @eq: The event queue to bind this completion queue to.
12431 * This function creates a completion queue, as detailed in @wq, on a port,
12432 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
12434 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12435 * is used to get the entry count and entry size that are necessary to
12436 * determine the number of pages to allocate and use for this queue. The @eq
12437 * is used to indicate which event queue to bind this completion queue to. This
12438 * function will send the CQ_CREATE mailbox command to the HBA to setup the
12439 * completion queue. This function is asynchronous and will wait for the mailbox
12440 * command to finish before continuing.
12442 * On success this function will return a zero. If unable to allocate enough
12443 * memory this function will return -ENOMEM. If the queue create mailbox command
12444 * fails this function will return -ENXIO.
12447 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12448 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
12450 struct lpfc_mbx_cq_create
*cq_create
;
12451 struct lpfc_dmabuf
*dmabuf
;
12452 LPFC_MBOXQ_t
*mbox
;
12453 int rc
, length
, status
= 0;
12454 uint32_t shdr_status
, shdr_add_status
;
12455 union lpfc_sli4_cfg_shdr
*shdr
;
12456 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12458 /* sanity check on queue memory */
12461 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12462 hw_page_size
= SLI4_PAGE_SIZE
;
12464 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12467 length
= (sizeof(struct lpfc_mbx_cq_create
) -
12468 sizeof(struct lpfc_sli4_cfg_mhdr
));
12469 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
12470 LPFC_MBOX_OPCODE_CQ_CREATE
,
12471 length
, LPFC_SLI4_MBX_EMBED
);
12472 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
12473 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
12474 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
12476 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
12477 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
12478 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
12479 phba
->sli4_hba
.pc_sli4_params
.cqv
);
12480 if (phba
->sli4_hba
.pc_sli4_params
.cqv
== LPFC_Q_CREATE_VERSION_2
) {
12481 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
12482 bf_set(lpfc_mbx_cq_create_page_size
, &cq_create
->u
.request
, 1);
12483 bf_set(lpfc_cq_eq_id_2
, &cq_create
->u
.request
.context
,
12486 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
,
12489 switch (cq
->entry_count
) {
12491 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12492 "0361 Unsupported CQ count. (%d)\n",
12494 if (cq
->entry_count
< 256) {
12498 /* otherwise default to smallest count (drop through) */
12500 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
12504 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
12508 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
12512 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
12513 memset(dmabuf
->virt
, 0, hw_page_size
);
12514 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
12515 putPaddrLow(dmabuf
->phys
);
12516 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
12517 putPaddrHigh(dmabuf
->phys
);
12519 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12521 /* The IOCTL status is embedded in the mailbox subheader. */
12522 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12523 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12524 if (shdr_status
|| shdr_add_status
|| rc
) {
12525 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12526 "2501 CQ_CREATE mailbox failed with "
12527 "status x%x add_status x%x, mbx status x%x\n",
12528 shdr_status
, shdr_add_status
, rc
);
12532 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
12533 if (cq
->queue_id
== 0xFFFF) {
12537 /* link the cq onto the parent eq child list */
12538 list_add_tail(&cq
->list
, &eq
->child_list
);
12539 /* Set up completion queue's type and subtype */
12541 cq
->subtype
= subtype
;
12542 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
12543 cq
->assoc_qid
= eq
->queue_id
;
12544 cq
->host_index
= 0;
12548 mempool_free(mbox
, phba
->mbox_mem_pool
);
12553 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
12554 * @phba: HBA structure that indicates port to create a queue on.
12555 * @mq: The queue structure to use to create the mailbox queue.
12556 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
12557 * @cq: The completion queue to associate with this cq.
12559 * This function provides failback (fb) functionality when the
12560 * mq_create_ext fails on older FW generations. It's purpose is identical
12561 * to mq_create_ext otherwise.
12563 * This routine cannot fail as all attributes were previously accessed and
12564 * initialized in mq_create_ext.
12567 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
12568 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
12570 struct lpfc_mbx_mq_create
*mq_create
;
12571 struct lpfc_dmabuf
*dmabuf
;
12574 length
= (sizeof(struct lpfc_mbx_mq_create
) -
12575 sizeof(struct lpfc_sli4_cfg_mhdr
));
12576 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
12577 LPFC_MBOX_OPCODE_MQ_CREATE
,
12578 length
, LPFC_SLI4_MBX_EMBED
);
12579 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
12580 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
12582 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
12584 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
12585 switch (mq
->entry_count
) {
12587 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
12588 LPFC_MQ_RING_SIZE_16
);
12591 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
12592 LPFC_MQ_RING_SIZE_32
);
12595 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
12596 LPFC_MQ_RING_SIZE_64
);
12599 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
12600 LPFC_MQ_RING_SIZE_128
);
12603 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
12604 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
12605 putPaddrLow(dmabuf
->phys
);
12606 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
12607 putPaddrHigh(dmabuf
->phys
);
12612 * lpfc_mq_create - Create a mailbox Queue on the HBA
12613 * @phba: HBA structure that indicates port to create a queue on.
12614 * @mq: The queue structure to use to create the mailbox queue.
12615 * @cq: The completion queue to associate with this cq.
12616 * @subtype: The queue's subtype.
12618 * This function creates a mailbox queue, as detailed in @mq, on a port,
12619 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
12621 * The @phba struct is used to send mailbox command to HBA. The @cq struct
12622 * is used to get the entry count and entry size that are necessary to
12623 * determine the number of pages to allocate and use for this queue. This
12624 * function will send the MQ_CREATE mailbox command to the HBA to setup the
12625 * mailbox queue. This function is asynchronous and will wait for the mailbox
12626 * command to finish before continuing.
12628 * On success this function will return a zero. If unable to allocate enough
12629 * memory this function will return -ENOMEM. If the queue create mailbox command
12630 * fails this function will return -ENXIO.
12633 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
12634 struct lpfc_queue
*cq
, uint32_t subtype
)
12636 struct lpfc_mbx_mq_create
*mq_create
;
12637 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
12638 struct lpfc_dmabuf
*dmabuf
;
12639 LPFC_MBOXQ_t
*mbox
;
12640 int rc
, length
, status
= 0;
12641 uint32_t shdr_status
, shdr_add_status
;
12642 union lpfc_sli4_cfg_shdr
*shdr
;
12643 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12645 /* sanity check on queue memory */
12648 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12649 hw_page_size
= SLI4_PAGE_SIZE
;
12651 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12654 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
12655 sizeof(struct lpfc_sli4_cfg_mhdr
));
12656 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
12657 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
12658 length
, LPFC_SLI4_MBX_EMBED
);
12660 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
12661 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
12662 bf_set(lpfc_mbx_mq_create_ext_num_pages
,
12663 &mq_create_ext
->u
.request
, mq
->page_count
);
12664 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
,
12665 &mq_create_ext
->u
.request
, 1);
12666 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip
,
12667 &mq_create_ext
->u
.request
, 1);
12668 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
12669 &mq_create_ext
->u
.request
, 1);
12670 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc
,
12671 &mq_create_ext
->u
.request
, 1);
12672 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli
,
12673 &mq_create_ext
->u
.request
, 1);
12674 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
12675 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
12676 phba
->sli4_hba
.pc_sli4_params
.mqv
);
12677 if (phba
->sli4_hba
.pc_sli4_params
.mqv
== LPFC_Q_CREATE_VERSION_1
)
12678 bf_set(lpfc_mbx_mq_create_ext_cq_id
, &mq_create_ext
->u
.request
,
12681 bf_set(lpfc_mq_context_cq_id
, &mq_create_ext
->u
.request
.context
,
12683 switch (mq
->entry_count
) {
12685 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12686 "0362 Unsupported MQ count. (%d)\n",
12688 if (mq
->entry_count
< 16) {
12692 /* otherwise default to smallest count (drop through) */
12694 bf_set(lpfc_mq_context_ring_size
,
12695 &mq_create_ext
->u
.request
.context
,
12696 LPFC_MQ_RING_SIZE_16
);
12699 bf_set(lpfc_mq_context_ring_size
,
12700 &mq_create_ext
->u
.request
.context
,
12701 LPFC_MQ_RING_SIZE_32
);
12704 bf_set(lpfc_mq_context_ring_size
,
12705 &mq_create_ext
->u
.request
.context
,
12706 LPFC_MQ_RING_SIZE_64
);
12709 bf_set(lpfc_mq_context_ring_size
,
12710 &mq_create_ext
->u
.request
.context
,
12711 LPFC_MQ_RING_SIZE_128
);
12714 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
12715 memset(dmabuf
->virt
, 0, hw_page_size
);
12716 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
12717 putPaddrLow(dmabuf
->phys
);
12718 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
12719 putPaddrHigh(dmabuf
->phys
);
12721 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12722 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
12723 &mq_create_ext
->u
.response
);
12724 if (rc
!= MBX_SUCCESS
) {
12725 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
12726 "2795 MQ_CREATE_EXT failed with "
12727 "status x%x. Failback to MQ_CREATE.\n",
12729 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
12730 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
12731 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12732 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
12733 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
12734 &mq_create
->u
.response
);
12737 /* The IOCTL status is embedded in the mailbox subheader. */
12738 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12739 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12740 if (shdr_status
|| shdr_add_status
|| rc
) {
12741 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12742 "2502 MQ_CREATE mailbox failed with "
12743 "status x%x add_status x%x, mbx status x%x\n",
12744 shdr_status
, shdr_add_status
, rc
);
12748 if (mq
->queue_id
== 0xFFFF) {
12752 mq
->type
= LPFC_MQ
;
12753 mq
->assoc_qid
= cq
->queue_id
;
12754 mq
->subtype
= subtype
;
12755 mq
->host_index
= 0;
12758 /* link the mq onto the parent cq child list */
12759 list_add_tail(&mq
->list
, &cq
->child_list
);
12761 mempool_free(mbox
, phba
->mbox_mem_pool
);
12766 * lpfc_wq_create - Create a Work Queue on the HBA
12767 * @phba: HBA structure that indicates port to create a queue on.
12768 * @wq: The queue structure to use to create the work queue.
12769 * @cq: The completion queue to bind this work queue to.
12770 * @subtype: The subtype of the work queue indicating its functionality.
12772 * This function creates a work queue, as detailed in @wq, on a port, described
12773 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
12775 * The @phba struct is used to send mailbox command to HBA. The @wq struct
12776 * is used to get the entry count and entry size that are necessary to
12777 * determine the number of pages to allocate and use for this queue. The @cq
12778 * is used to indicate which completion queue to bind this work queue to. This
12779 * function will send the WQ_CREATE mailbox command to the HBA to setup the
12780 * work queue. This function is asynchronous and will wait for the mailbox
12781 * command to finish before continuing.
12783 * On success this function will return a zero. If unable to allocate enough
12784 * memory this function will return -ENOMEM. If the queue create mailbox command
12785 * fails this function will return -ENXIO.
12788 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
12789 struct lpfc_queue
*cq
, uint32_t subtype
)
12791 struct lpfc_mbx_wq_create
*wq_create
;
12792 struct lpfc_dmabuf
*dmabuf
;
12793 LPFC_MBOXQ_t
*mbox
;
12794 int rc
, length
, status
= 0;
12795 uint32_t shdr_status
, shdr_add_status
;
12796 union lpfc_sli4_cfg_shdr
*shdr
;
12797 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12798 struct dma_address
*page
;
12799 void __iomem
*bar_memmap_p
;
12800 uint32_t db_offset
;
12801 uint16_t pci_barset
;
12803 /* sanity check on queue memory */
12806 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12807 hw_page_size
= SLI4_PAGE_SIZE
;
12809 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12812 length
= (sizeof(struct lpfc_mbx_wq_create
) -
12813 sizeof(struct lpfc_sli4_cfg_mhdr
));
12814 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12815 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
12816 length
, LPFC_SLI4_MBX_EMBED
);
12817 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
12818 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
12819 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
12821 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
12823 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
12824 phba
->sli4_hba
.pc_sli4_params
.wqv
);
12826 if (phba
->sli4_hba
.pc_sli4_params
.wqv
== LPFC_Q_CREATE_VERSION_1
) {
12827 bf_set(lpfc_mbx_wq_create_wqe_count
, &wq_create
->u
.request_1
,
12829 switch (wq
->entry_size
) {
12832 bf_set(lpfc_mbx_wq_create_wqe_size
,
12833 &wq_create
->u
.request_1
,
12834 LPFC_WQ_WQE_SIZE_64
);
12837 bf_set(lpfc_mbx_wq_create_wqe_size
,
12838 &wq_create
->u
.request_1
,
12839 LPFC_WQ_WQE_SIZE_128
);
12842 bf_set(lpfc_mbx_wq_create_page_size
, &wq_create
->u
.request_1
,
12843 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
12844 page
= wq_create
->u
.request_1
.page
;
12846 page
= wq_create
->u
.request
.page
;
12848 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
12849 memset(dmabuf
->virt
, 0, hw_page_size
);
12850 page
[dmabuf
->buffer_tag
].addr_lo
= putPaddrLow(dmabuf
->phys
);
12851 page
[dmabuf
->buffer_tag
].addr_hi
= putPaddrHigh(dmabuf
->phys
);
12854 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
12855 bf_set(lpfc_mbx_wq_create_dua
, &wq_create
->u
.request
, 1);
12857 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
12858 /* The IOCTL status is embedded in the mailbox subheader. */
12859 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12860 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12861 if (shdr_status
|| shdr_add_status
|| rc
) {
12862 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12863 "2503 WQ_CREATE mailbox failed with "
12864 "status x%x add_status x%x, mbx status x%x\n",
12865 shdr_status
, shdr_add_status
, rc
);
12869 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
12870 if (wq
->queue_id
== 0xFFFF) {
12874 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
12875 wq
->db_format
= bf_get(lpfc_mbx_wq_create_db_format
,
12876 &wq_create
->u
.response
);
12877 if ((wq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
12878 (wq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
12879 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12880 "3265 WQ[%d] doorbell format not "
12881 "supported: x%x\n", wq
->queue_id
,
12886 pci_barset
= bf_get(lpfc_mbx_wq_create_bar_set
,
12887 &wq_create
->u
.response
);
12888 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
12889 if (!bar_memmap_p
) {
12890 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12891 "3263 WQ[%d] failed to memmap pci "
12892 "barset:x%x\n", wq
->queue_id
,
12897 db_offset
= wq_create
->u
.response
.doorbell_offset
;
12898 if ((db_offset
!= LPFC_ULP0_WQ_DOORBELL
) &&
12899 (db_offset
!= LPFC_ULP1_WQ_DOORBELL
)) {
12900 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12901 "3252 WQ[%d] doorbell offset not "
12902 "supported: x%x\n", wq
->queue_id
,
12907 wq
->db_regaddr
= bar_memmap_p
+ db_offset
;
12908 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
12909 "3264 WQ[%d]: barset:x%x, offset:x%x, "
12910 "format:x%x\n", wq
->queue_id
, pci_barset
,
12911 db_offset
, wq
->db_format
);
12913 wq
->db_format
= LPFC_DB_LIST_FORMAT
;
12914 wq
->db_regaddr
= phba
->sli4_hba
.WQDBregaddr
;
12916 wq
->type
= LPFC_WQ
;
12917 wq
->assoc_qid
= cq
->queue_id
;
12918 wq
->subtype
= subtype
;
12919 wq
->host_index
= 0;
12921 wq
->entry_repost
= LPFC_RELEASE_NOTIFICATION_INTERVAL
;
12923 /* link the wq onto the parent cq child list */
12924 list_add_tail(&wq
->list
, &cq
->child_list
);
12926 mempool_free(mbox
, phba
->mbox_mem_pool
);
12931 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
12932 * @phba: HBA structure that indicates port to create a queue on.
12933 * @rq: The queue structure to use for the receive queue.
12934 * @qno: The associated HBQ number
12937 * For SLI4 we need to adjust the RQ repost value based on
12938 * the number of buffers that are initially posted to the RQ.
12941 lpfc_rq_adjust_repost(struct lpfc_hba
*phba
, struct lpfc_queue
*rq
, int qno
)
12945 /* sanity check on queue memory */
12948 cnt
= lpfc_hbq_defs
[qno
]->entry_count
;
12950 /* Recalc repost for RQs based on buffers initially posted */
12952 if (cnt
< LPFC_QUEUE_MIN_REPOST
)
12953 cnt
= LPFC_QUEUE_MIN_REPOST
;
12955 rq
->entry_repost
= cnt
;
12959 * lpfc_rq_create - Create a Receive Queue on the HBA
12960 * @phba: HBA structure that indicates port to create a queue on.
12961 * @hrq: The queue structure to use to create the header receive queue.
12962 * @drq: The queue structure to use to create the data receive queue.
12963 * @cq: The completion queue to bind this work queue to.
12965 * This function creates a receive buffer queue pair , as detailed in @hrq and
12966 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
12969 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
12970 * struct is used to get the entry count that is necessary to determine the
12971 * number of pages to use for this queue. The @cq is used to indicate which
12972 * completion queue to bind received buffers that are posted to these queues to.
12973 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
12974 * receive queue pair. This function is asynchronous and will wait for the
12975 * mailbox command to finish before continuing.
12977 * On success this function will return a zero. If unable to allocate enough
12978 * memory this function will return -ENOMEM. If the queue create mailbox command
12979 * fails this function will return -ENXIO.
12982 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
12983 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
12985 struct lpfc_mbx_rq_create
*rq_create
;
12986 struct lpfc_dmabuf
*dmabuf
;
12987 LPFC_MBOXQ_t
*mbox
;
12988 int rc
, length
, status
= 0;
12989 uint32_t shdr_status
, shdr_add_status
;
12990 union lpfc_sli4_cfg_shdr
*shdr
;
12991 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12992 void __iomem
*bar_memmap_p
;
12993 uint32_t db_offset
;
12994 uint16_t pci_barset
;
12996 /* sanity check on queue memory */
12997 if (!hrq
|| !drq
|| !cq
)
12999 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13000 hw_page_size
= SLI4_PAGE_SIZE
;
13002 if (hrq
->entry_count
!= drq
->entry_count
)
13004 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13007 length
= (sizeof(struct lpfc_mbx_rq_create
) -
13008 sizeof(struct lpfc_sli4_cfg_mhdr
));
13009 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13010 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
13011 length
, LPFC_SLI4_MBX_EMBED
);
13012 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
13013 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
13014 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13015 phba
->sli4_hba
.pc_sli4_params
.rqv
);
13016 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
13017 bf_set(lpfc_rq_context_rqe_count_1
,
13018 &rq_create
->u
.request
.context
,
13020 rq_create
->u
.request
.context
.buffer_size
= LPFC_HDR_BUF_SIZE
;
13021 bf_set(lpfc_rq_context_rqe_size
,
13022 &rq_create
->u
.request
.context
,
13024 bf_set(lpfc_rq_context_page_size
,
13025 &rq_create
->u
.request
.context
,
13026 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13028 switch (hrq
->entry_count
) {
13030 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13031 "2535 Unsupported RQ count. (%d)\n",
13033 if (hrq
->entry_count
< 512) {
13037 /* otherwise default to smallest count (drop through) */
13039 bf_set(lpfc_rq_context_rqe_count
,
13040 &rq_create
->u
.request
.context
,
13041 LPFC_RQ_RING_SIZE_512
);
13044 bf_set(lpfc_rq_context_rqe_count
,
13045 &rq_create
->u
.request
.context
,
13046 LPFC_RQ_RING_SIZE_1024
);
13049 bf_set(lpfc_rq_context_rqe_count
,
13050 &rq_create
->u
.request
.context
,
13051 LPFC_RQ_RING_SIZE_2048
);
13054 bf_set(lpfc_rq_context_rqe_count
,
13055 &rq_create
->u
.request
.context
,
13056 LPFC_RQ_RING_SIZE_4096
);
13059 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
13060 LPFC_HDR_BUF_SIZE
);
13062 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
13064 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
13066 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
13067 memset(dmabuf
->virt
, 0, hw_page_size
);
13068 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13069 putPaddrLow(dmabuf
->phys
);
13070 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13071 putPaddrHigh(dmabuf
->phys
);
13073 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13074 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
13076 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13077 /* The IOCTL status is embedded in the mailbox subheader. */
13078 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13079 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13080 if (shdr_status
|| shdr_add_status
|| rc
) {
13081 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13082 "2504 RQ_CREATE mailbox failed with "
13083 "status x%x add_status x%x, mbx status x%x\n",
13084 shdr_status
, shdr_add_status
, rc
);
13088 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
13089 if (hrq
->queue_id
== 0xFFFF) {
13094 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
13095 hrq
->db_format
= bf_get(lpfc_mbx_rq_create_db_format
,
13096 &rq_create
->u
.response
);
13097 if ((hrq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
13098 (hrq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
13099 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13100 "3262 RQ [%d] doorbell format not "
13101 "supported: x%x\n", hrq
->queue_id
,
13107 pci_barset
= bf_get(lpfc_mbx_rq_create_bar_set
,
13108 &rq_create
->u
.response
);
13109 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
13110 if (!bar_memmap_p
) {
13111 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13112 "3269 RQ[%d] failed to memmap pci "
13113 "barset:x%x\n", hrq
->queue_id
,
13119 db_offset
= rq_create
->u
.response
.doorbell_offset
;
13120 if ((db_offset
!= LPFC_ULP0_RQ_DOORBELL
) &&
13121 (db_offset
!= LPFC_ULP1_RQ_DOORBELL
)) {
13122 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13123 "3270 RQ[%d] doorbell offset not "
13124 "supported: x%x\n", hrq
->queue_id
,
13129 hrq
->db_regaddr
= bar_memmap_p
+ db_offset
;
13130 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13131 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13132 "format:x%x\n", hrq
->queue_id
, pci_barset
,
13133 db_offset
, hrq
->db_format
);
13135 hrq
->db_format
= LPFC_DB_RING_FORMAT
;
13136 hrq
->db_regaddr
= phba
->sli4_hba
.RQDBregaddr
;
13138 hrq
->type
= LPFC_HRQ
;
13139 hrq
->assoc_qid
= cq
->queue_id
;
13140 hrq
->subtype
= subtype
;
13141 hrq
->host_index
= 0;
13142 hrq
->hba_index
= 0;
13144 /* now create the data queue */
13145 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13146 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
13147 length
, LPFC_SLI4_MBX_EMBED
);
13148 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13149 phba
->sli4_hba
.pc_sli4_params
.rqv
);
13150 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
13151 bf_set(lpfc_rq_context_rqe_count_1
,
13152 &rq_create
->u
.request
.context
, hrq
->entry_count
);
13153 rq_create
->u
.request
.context
.buffer_size
= LPFC_DATA_BUF_SIZE
;
13154 bf_set(lpfc_rq_context_rqe_size
, &rq_create
->u
.request
.context
,
13156 bf_set(lpfc_rq_context_page_size
, &rq_create
->u
.request
.context
,
13157 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13159 switch (drq
->entry_count
) {
13161 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13162 "2536 Unsupported RQ count. (%d)\n",
13164 if (drq
->entry_count
< 512) {
13168 /* otherwise default to smallest count (drop through) */
13170 bf_set(lpfc_rq_context_rqe_count
,
13171 &rq_create
->u
.request
.context
,
13172 LPFC_RQ_RING_SIZE_512
);
13175 bf_set(lpfc_rq_context_rqe_count
,
13176 &rq_create
->u
.request
.context
,
13177 LPFC_RQ_RING_SIZE_1024
);
13180 bf_set(lpfc_rq_context_rqe_count
,
13181 &rq_create
->u
.request
.context
,
13182 LPFC_RQ_RING_SIZE_2048
);
13185 bf_set(lpfc_rq_context_rqe_count
,
13186 &rq_create
->u
.request
.context
,
13187 LPFC_RQ_RING_SIZE_4096
);
13190 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
13191 LPFC_DATA_BUF_SIZE
);
13193 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
13195 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
13197 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
13198 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13199 putPaddrLow(dmabuf
->phys
);
13200 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13201 putPaddrHigh(dmabuf
->phys
);
13203 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13204 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
13205 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13206 /* The IOCTL status is embedded in the mailbox subheader. */
13207 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
13208 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13209 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13210 if (shdr_status
|| shdr_add_status
|| rc
) {
13214 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
13215 if (drq
->queue_id
== 0xFFFF) {
13219 drq
->type
= LPFC_DRQ
;
13220 drq
->assoc_qid
= cq
->queue_id
;
13221 drq
->subtype
= subtype
;
13222 drq
->host_index
= 0;
13223 drq
->hba_index
= 0;
13225 /* link the header and data RQs onto the parent cq child list */
13226 list_add_tail(&hrq
->list
, &cq
->child_list
);
13227 list_add_tail(&drq
->list
, &cq
->child_list
);
13230 mempool_free(mbox
, phba
->mbox_mem_pool
);
13235 * lpfc_eq_destroy - Destroy an event Queue on the HBA
13236 * @eq: The queue structure associated with the queue to destroy.
13238 * This function destroys a queue, as detailed in @eq by sending an mailbox
13239 * command, specific to the type of queue, to the HBA.
13241 * The @eq struct is used to get the queue ID of the queue to destroy.
13243 * On success this function will return a zero. If the queue destroy mailbox
13244 * command fails this function will return -ENXIO.
13247 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
13249 LPFC_MBOXQ_t
*mbox
;
13250 int rc
, length
, status
= 0;
13251 uint32_t shdr_status
, shdr_add_status
;
13252 union lpfc_sli4_cfg_shdr
*shdr
;
13254 /* sanity check on queue memory */
13257 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
13260 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
13261 sizeof(struct lpfc_sli4_cfg_mhdr
));
13262 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13263 LPFC_MBOX_OPCODE_EQ_DESTROY
,
13264 length
, LPFC_SLI4_MBX_EMBED
);
13265 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
13267 mbox
->vport
= eq
->phba
->pport
;
13268 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13270 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
13271 /* The IOCTL status is embedded in the mailbox subheader. */
13272 shdr
= (union lpfc_sli4_cfg_shdr
*)
13273 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
13274 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13275 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13276 if (shdr_status
|| shdr_add_status
|| rc
) {
13277 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13278 "2505 EQ_DESTROY mailbox failed with "
13279 "status x%x add_status x%x, mbx status x%x\n",
13280 shdr_status
, shdr_add_status
, rc
);
13284 /* Remove eq from any list */
13285 list_del_init(&eq
->list
);
13286 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
13291 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
13292 * @cq: The queue structure associated with the queue to destroy.
13294 * This function destroys a queue, as detailed in @cq by sending an mailbox
13295 * command, specific to the type of queue, to the HBA.
13297 * The @cq struct is used to get the queue ID of the queue to destroy.
13299 * On success this function will return a zero. If the queue destroy mailbox
13300 * command fails this function will return -ENXIO.
13303 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
13305 LPFC_MBOXQ_t
*mbox
;
13306 int rc
, length
, status
= 0;
13307 uint32_t shdr_status
, shdr_add_status
;
13308 union lpfc_sli4_cfg_shdr
*shdr
;
13310 /* sanity check on queue memory */
13313 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
13316 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
13317 sizeof(struct lpfc_sli4_cfg_mhdr
));
13318 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13319 LPFC_MBOX_OPCODE_CQ_DESTROY
,
13320 length
, LPFC_SLI4_MBX_EMBED
);
13321 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
13323 mbox
->vport
= cq
->phba
->pport
;
13324 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13325 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
13326 /* The IOCTL status is embedded in the mailbox subheader. */
13327 shdr
= (union lpfc_sli4_cfg_shdr
*)
13328 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
13329 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13330 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13331 if (shdr_status
|| shdr_add_status
|| rc
) {
13332 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13333 "2506 CQ_DESTROY mailbox failed with "
13334 "status x%x add_status x%x, mbx status x%x\n",
13335 shdr_status
, shdr_add_status
, rc
);
13338 /* Remove cq from any list */
13339 list_del_init(&cq
->list
);
13340 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
13345 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
13346 * @qm: The queue structure associated with the queue to destroy.
13348 * This function destroys a queue, as detailed in @mq by sending an mailbox
13349 * command, specific to the type of queue, to the HBA.
13351 * The @mq struct is used to get the queue ID of the queue to destroy.
13353 * On success this function will return a zero. If the queue destroy mailbox
13354 * command fails this function will return -ENXIO.
13357 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
13359 LPFC_MBOXQ_t
*mbox
;
13360 int rc
, length
, status
= 0;
13361 uint32_t shdr_status
, shdr_add_status
;
13362 union lpfc_sli4_cfg_shdr
*shdr
;
13364 /* sanity check on queue memory */
13367 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
13370 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
13371 sizeof(struct lpfc_sli4_cfg_mhdr
));
13372 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13373 LPFC_MBOX_OPCODE_MQ_DESTROY
,
13374 length
, LPFC_SLI4_MBX_EMBED
);
13375 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
13377 mbox
->vport
= mq
->phba
->pport
;
13378 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13379 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
13380 /* The IOCTL status is embedded in the mailbox subheader. */
13381 shdr
= (union lpfc_sli4_cfg_shdr
*)
13382 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
13383 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13384 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13385 if (shdr_status
|| shdr_add_status
|| rc
) {
13386 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13387 "2507 MQ_DESTROY mailbox failed with "
13388 "status x%x add_status x%x, mbx status x%x\n",
13389 shdr_status
, shdr_add_status
, rc
);
13392 /* Remove mq from any list */
13393 list_del_init(&mq
->list
);
13394 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
13399 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
13400 * @wq: The queue structure associated with the queue to destroy.
13402 * This function destroys a queue, as detailed in @wq by sending an mailbox
13403 * command, specific to the type of queue, to the HBA.
13405 * The @wq struct is used to get the queue ID of the queue to destroy.
13407 * On success this function will return a zero. If the queue destroy mailbox
13408 * command fails this function will return -ENXIO.
13411 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
13413 LPFC_MBOXQ_t
*mbox
;
13414 int rc
, length
, status
= 0;
13415 uint32_t shdr_status
, shdr_add_status
;
13416 union lpfc_sli4_cfg_shdr
*shdr
;
13418 /* sanity check on queue memory */
13421 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
13424 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
13425 sizeof(struct lpfc_sli4_cfg_mhdr
));
13426 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13427 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
13428 length
, LPFC_SLI4_MBX_EMBED
);
13429 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
13431 mbox
->vport
= wq
->phba
->pport
;
13432 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13433 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
13434 shdr
= (union lpfc_sli4_cfg_shdr
*)
13435 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
13436 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13437 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13438 if (shdr_status
|| shdr_add_status
|| rc
) {
13439 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13440 "2508 WQ_DESTROY mailbox failed with "
13441 "status x%x add_status x%x, mbx status x%x\n",
13442 shdr_status
, shdr_add_status
, rc
);
13445 /* Remove wq from any list */
13446 list_del_init(&wq
->list
);
13447 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
13452 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
13453 * @rq: The queue structure associated with the queue to destroy.
13455 * This function destroys a queue, as detailed in @rq by sending an mailbox
13456 * command, specific to the type of queue, to the HBA.
13458 * The @rq struct is used to get the queue ID of the queue to destroy.
13460 * On success this function will return a zero. If the queue destroy mailbox
13461 * command fails this function will return -ENXIO.
13464 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
13465 struct lpfc_queue
*drq
)
13467 LPFC_MBOXQ_t
*mbox
;
13468 int rc
, length
, status
= 0;
13469 uint32_t shdr_status
, shdr_add_status
;
13470 union lpfc_sli4_cfg_shdr
*shdr
;
13472 /* sanity check on queue memory */
13475 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
13478 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
13479 sizeof(struct lpfc_sli4_cfg_mhdr
));
13480 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13481 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
13482 length
, LPFC_SLI4_MBX_EMBED
);
13483 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
13485 mbox
->vport
= hrq
->phba
->pport
;
13486 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13487 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
13488 /* The IOCTL status is embedded in the mailbox subheader. */
13489 shdr
= (union lpfc_sli4_cfg_shdr
*)
13490 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
13491 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13492 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13493 if (shdr_status
|| shdr_add_status
|| rc
) {
13494 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13495 "2509 RQ_DESTROY mailbox failed with "
13496 "status x%x add_status x%x, mbx status x%x\n",
13497 shdr_status
, shdr_add_status
, rc
);
13498 if (rc
!= MBX_TIMEOUT
)
13499 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
13502 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
13504 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
13505 shdr
= (union lpfc_sli4_cfg_shdr
*)
13506 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
13507 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13508 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13509 if (shdr_status
|| shdr_add_status
|| rc
) {
13510 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13511 "2510 RQ_DESTROY mailbox failed with "
13512 "status x%x add_status x%x, mbx status x%x\n",
13513 shdr_status
, shdr_add_status
, rc
);
13516 list_del_init(&hrq
->list
);
13517 list_del_init(&drq
->list
);
13518 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
13523 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
13524 * @phba: The virtual port for which this call being executed.
13525 * @pdma_phys_addr0: Physical address of the 1st SGL page.
13526 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
13527 * @xritag: the xritag that ties this io to the SGL pages.
13529 * This routine will post the sgl pages for the IO that has the xritag
13530 * that is in the iocbq structure. The xritag is assigned during iocbq
13531 * creation and persists for as long as the driver is loaded.
13532 * if the caller has fewer than 256 scatter gather segments to map then
13533 * pdma_phys_addr1 should be 0.
13534 * If the caller needs to map more than 256 scatter gather segment then
13535 * pdma_phys_addr1 should be a valid physical address.
13536 * physical address for SGLs must be 64 byte aligned.
13537 * If you are going to map 2 SGL's then the first one must have 256 entries
13538 * the second sgl can have between 1 and 256 entries.
13542 * -ENXIO, -ENOMEM - Failure
13545 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
13546 dma_addr_t pdma_phys_addr0
,
13547 dma_addr_t pdma_phys_addr1
,
13550 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
13551 LPFC_MBOXQ_t
*mbox
;
13553 uint32_t shdr_status
, shdr_add_status
;
13555 union lpfc_sli4_cfg_shdr
*shdr
;
13557 if (xritag
== NO_XRI
) {
13558 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13559 "0364 Invalid param:\n");
13563 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13567 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13568 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
13569 sizeof(struct lpfc_mbx_post_sgl_pages
) -
13570 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
13572 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
13573 &mbox
->u
.mqe
.un
.post_sgl_pages
;
13574 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
13575 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
13577 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
13578 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
13579 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
13580 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
13582 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
13583 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
13584 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
13585 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
13586 if (!phba
->sli4_hba
.intr_enable
)
13587 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13589 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
13590 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
13592 /* The IOCTL status is embedded in the mailbox subheader. */
13593 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
13594 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13595 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13596 if (rc
!= MBX_TIMEOUT
)
13597 mempool_free(mbox
, phba
->mbox_mem_pool
);
13598 if (shdr_status
|| shdr_add_status
|| rc
) {
13599 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13600 "2511 POST_SGL mailbox failed with "
13601 "status x%x add_status x%x, mbx status x%x\n",
13602 shdr_status
, shdr_add_status
, rc
);
13609 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
13610 * @phba: pointer to lpfc hba data structure.
13612 * This routine is invoked to post rpi header templates to the
13613 * HBA consistent with the SLI-4 interface spec. This routine
13614 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
13615 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
13618 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
13619 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
13622 lpfc_sli4_alloc_xri(struct lpfc_hba
*phba
)
13627 * Fetch the next logical xri. Because this index is logical,
13628 * the driver starts at 0 each time.
13630 spin_lock_irq(&phba
->hbalock
);
13631 xri
= find_next_zero_bit(phba
->sli4_hba
.xri_bmask
,
13632 phba
->sli4_hba
.max_cfg_param
.max_xri
, 0);
13633 if (xri
>= phba
->sli4_hba
.max_cfg_param
.max_xri
) {
13634 spin_unlock_irq(&phba
->hbalock
);
13637 set_bit(xri
, phba
->sli4_hba
.xri_bmask
);
13638 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
13640 spin_unlock_irq(&phba
->hbalock
);
13645 * lpfc_sli4_free_xri - Release an xri for reuse.
13646 * @phba: pointer to lpfc hba data structure.
13648 * This routine is invoked to release an xri to the pool of
13649 * available rpis maintained by the driver.
13652 __lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
13654 if (test_and_clear_bit(xri
, phba
->sli4_hba
.xri_bmask
)) {
13655 phba
->sli4_hba
.max_cfg_param
.xri_used
--;
13660 * lpfc_sli4_free_xri - Release an xri for reuse.
13661 * @phba: pointer to lpfc hba data structure.
13663 * This routine is invoked to release an xri to the pool of
13664 * available rpis maintained by the driver.
13667 lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
13669 spin_lock_irq(&phba
->hbalock
);
13670 __lpfc_sli4_free_xri(phba
, xri
);
13671 spin_unlock_irq(&phba
->hbalock
);
13675 * lpfc_sli4_next_xritag - Get an xritag for the io
13676 * @phba: Pointer to HBA context object.
13678 * This function gets an xritag for the iocb. If there is no unused xritag
13679 * it will return 0xffff.
13680 * The function returns the allocated xritag if successful, else returns zero.
13681 * Zero is not a valid xritag.
13682 * The caller is not required to hold any lock.
13685 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
13687 uint16_t xri_index
;
13689 xri_index
= lpfc_sli4_alloc_xri(phba
);
13690 if (xri_index
== NO_XRI
)
13691 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
13692 "2004 Failed to allocate XRI.last XRITAG is %d"
13693 " Max XRI is %d, Used XRI is %d\n",
13695 phba
->sli4_hba
.max_cfg_param
.max_xri
,
13696 phba
->sli4_hba
.max_cfg_param
.xri_used
);
13701 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
13702 * @phba: pointer to lpfc hba data structure.
13703 * @post_sgl_list: pointer to els sgl entry list.
13704 * @count: number of els sgl entries on the list.
13706 * This routine is invoked to post a block of driver's sgl pages to the
13707 * HBA using non-embedded mailbox command. No Lock is held. This routine
13708 * is only called when the driver is loading and after all IO has been
13712 lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*phba
,
13713 struct list_head
*post_sgl_list
,
13716 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
13717 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
13718 struct sgl_page_pairs
*sgl_pg_pairs
;
13720 LPFC_MBOXQ_t
*mbox
;
13721 uint32_t reqlen
, alloclen
, pg_pairs
;
13723 uint16_t xritag_start
= 0;
13725 uint32_t shdr_status
, shdr_add_status
;
13726 union lpfc_sli4_cfg_shdr
*shdr
;
13728 reqlen
= phba
->sli4_hba
.els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
13729 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
13730 if (reqlen
> SLI4_PAGE_SIZE
) {
13731 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
13732 "2559 Block sgl registration required DMA "
13733 "size (%d) great than a page\n", reqlen
);
13736 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13740 /* Allocate DMA memory and set up the non-embedded mailbox command */
13741 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13742 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
13743 LPFC_SLI4_MBX_NEMBED
);
13745 if (alloclen
< reqlen
) {
13746 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13747 "0285 Allocated DMA memory size (%d) is "
13748 "less than the requested DMA memory "
13749 "size (%d)\n", alloclen
, reqlen
);
13750 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
13753 /* Set up the SGL pages in the non-embedded DMA pages */
13754 viraddr
= mbox
->sge_array
->addr
[0];
13755 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
13756 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
13759 list_for_each_entry_safe(sglq_entry
, sglq_next
, post_sgl_list
, list
) {
13760 /* Set up the sge entry */
13761 sgl_pg_pairs
->sgl_pg0_addr_lo
=
13762 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
13763 sgl_pg_pairs
->sgl_pg0_addr_hi
=
13764 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
13765 sgl_pg_pairs
->sgl_pg1_addr_lo
=
13766 cpu_to_le32(putPaddrLow(0));
13767 sgl_pg_pairs
->sgl_pg1_addr_hi
=
13768 cpu_to_le32(putPaddrHigh(0));
13770 /* Keep the first xritag on the list */
13772 xritag_start
= sglq_entry
->sli4_xritag
;
13777 /* Complete initialization and perform endian conversion. */
13778 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
13779 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, phba
->sli4_hba
.els_xri_cnt
);
13780 sgl
->word0
= cpu_to_le32(sgl
->word0
);
13781 if (!phba
->sli4_hba
.intr_enable
)
13782 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13784 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
13785 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
13787 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
13788 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13789 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13790 if (rc
!= MBX_TIMEOUT
)
13791 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
13792 if (shdr_status
|| shdr_add_status
|| rc
) {
13793 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13794 "2513 POST_SGL_BLOCK mailbox command failed "
13795 "status x%x add_status x%x mbx status x%x\n",
13796 shdr_status
, shdr_add_status
, rc
);
13803 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
13804 * @phba: pointer to lpfc hba data structure.
13805 * @sblist: pointer to scsi buffer list.
13806 * @count: number of scsi buffers on the list.
13808 * This routine is invoked to post a block of @count scsi sgl pages from a
13809 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
13814 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
,
13815 struct list_head
*sblist
,
13818 struct lpfc_scsi_buf
*psb
;
13819 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
13820 struct sgl_page_pairs
*sgl_pg_pairs
;
13822 LPFC_MBOXQ_t
*mbox
;
13823 uint32_t reqlen
, alloclen
, pg_pairs
;
13825 uint16_t xritag_start
= 0;
13827 uint32_t shdr_status
, shdr_add_status
;
13828 dma_addr_t pdma_phys_bpl1
;
13829 union lpfc_sli4_cfg_shdr
*shdr
;
13831 /* Calculate the requested length of the dma memory */
13832 reqlen
= count
* sizeof(struct sgl_page_pairs
) +
13833 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
13834 if (reqlen
> SLI4_PAGE_SIZE
) {
13835 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
13836 "0217 Block sgl registration required DMA "
13837 "size (%d) great than a page\n", reqlen
);
13840 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13842 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13843 "0283 Failed to allocate mbox cmd memory\n");
13847 /* Allocate DMA memory and set up the non-embedded mailbox command */
13848 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13849 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
13850 LPFC_SLI4_MBX_NEMBED
);
13852 if (alloclen
< reqlen
) {
13853 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13854 "2561 Allocated DMA memory size (%d) is "
13855 "less than the requested DMA memory "
13856 "size (%d)\n", alloclen
, reqlen
);
13857 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
13861 /* Get the first SGE entry from the non-embedded DMA memory */
13862 viraddr
= mbox
->sge_array
->addr
[0];
13864 /* Set up the SGL pages in the non-embedded DMA pages */
13865 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
13866 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
13869 list_for_each_entry(psb
, sblist
, list
) {
13870 /* Set up the sge entry */
13871 sgl_pg_pairs
->sgl_pg0_addr_lo
=
13872 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
13873 sgl_pg_pairs
->sgl_pg0_addr_hi
=
13874 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
13875 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
13876 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
13878 pdma_phys_bpl1
= 0;
13879 sgl_pg_pairs
->sgl_pg1_addr_lo
=
13880 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
13881 sgl_pg_pairs
->sgl_pg1_addr_hi
=
13882 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
13883 /* Keep the first xritag on the list */
13885 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
13889 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
13890 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
13891 /* Perform endian conversion if necessary */
13892 sgl
->word0
= cpu_to_le32(sgl
->word0
);
13894 if (!phba
->sli4_hba
.intr_enable
)
13895 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13897 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
13898 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
13900 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
13901 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13902 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13903 if (rc
!= MBX_TIMEOUT
)
13904 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
13905 if (shdr_status
|| shdr_add_status
|| rc
) {
13906 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13907 "2564 POST_SGL_BLOCK mailbox command failed "
13908 "status x%x add_status x%x mbx status x%x\n",
13909 shdr_status
, shdr_add_status
, rc
);
13916 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
13917 * @phba: pointer to lpfc_hba struct that the frame was received on
13918 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
13920 * This function checks the fields in the @fc_hdr to see if the FC frame is a
13921 * valid type of frame that the LPFC driver will handle. This function will
13922 * return a zero if the frame is a valid frame or a non zero value when the
13923 * frame does not pass the check.
13926 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
13928 /* make rctl_names static to save stack space */
13929 static char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
13930 char *type_names
[] = FC_TYPE_NAMES_INIT
;
13931 struct fc_vft_header
*fc_vft_hdr
;
13932 uint32_t *header
= (uint32_t *) fc_hdr
;
13934 switch (fc_hdr
->fh_r_ctl
) {
13935 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
13936 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
13937 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
13938 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
13939 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
13940 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
13941 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
13942 case FC_RCTL_DD_CMD_STATUS
: /* command status */
13943 case FC_RCTL_ELS_REQ
: /* extended link services request */
13944 case FC_RCTL_ELS_REP
: /* extended link services reply */
13945 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
13946 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
13947 case FC_RCTL_BA_NOP
: /* basic link service NOP */
13948 case FC_RCTL_BA_ABTS
: /* basic link service abort */
13949 case FC_RCTL_BA_RMC
: /* remove connection */
13950 case FC_RCTL_BA_ACC
: /* basic accept */
13951 case FC_RCTL_BA_RJT
: /* basic reject */
13952 case FC_RCTL_BA_PRMT
:
13953 case FC_RCTL_ACK_1
: /* acknowledge_1 */
13954 case FC_RCTL_ACK_0
: /* acknowledge_0 */
13955 case FC_RCTL_P_RJT
: /* port reject */
13956 case FC_RCTL_F_RJT
: /* fabric reject */
13957 case FC_RCTL_P_BSY
: /* port busy */
13958 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
13959 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
13960 case FC_RCTL_LCR
: /* link credit reset */
13961 case FC_RCTL_END
: /* end */
13963 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
13964 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
13965 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
13966 return lpfc_fc_frame_check(phba
, fc_hdr
);
13970 switch (fc_hdr
->fh_type
) {
13982 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
13983 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
13984 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
13985 rctl_names
[fc_hdr
->fh_r_ctl
], fc_hdr
->fh_r_ctl
,
13986 type_names
[fc_hdr
->fh_type
], fc_hdr
->fh_type
,
13987 be32_to_cpu(header
[0]), be32_to_cpu(header
[1]),
13988 be32_to_cpu(header
[2]), be32_to_cpu(header
[3]),
13989 be32_to_cpu(header
[4]), be32_to_cpu(header
[5]),
13990 be32_to_cpu(header
[6]));
13993 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
13994 "2539 Dropped frame rctl:%s type:%s\n",
13995 rctl_names
[fc_hdr
->fh_r_ctl
],
13996 type_names
[fc_hdr
->fh_type
]);
14001 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14002 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14004 * This function processes the FC header to retrieve the VFI from the VF
14005 * header, if one exists. This function will return the VFI if one exists
14006 * or 0 if no VSAN Header exists.
14009 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
14011 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
14013 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
14015 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
14019 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14020 * @phba: Pointer to the HBA structure to search for the vport on
14021 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14022 * @fcfi: The FC Fabric ID that the frame came from
14024 * This function searches the @phba for a vport that matches the content of the
14025 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14026 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14027 * returns the matching vport pointer or NULL if unable to match frame to a
14030 static struct lpfc_vport
*
14031 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
14034 struct lpfc_vport
**vports
;
14035 struct lpfc_vport
*vport
= NULL
;
14037 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
14038 fc_hdr
->fh_d_id
[1] << 8 |
14039 fc_hdr
->fh_d_id
[2]);
14041 if (did
== Fabric_DID
)
14042 return phba
->pport
;
14043 if ((phba
->pport
->fc_flag
& FC_PT2PT
) &&
14044 !(phba
->link_state
== LPFC_HBA_READY
))
14045 return phba
->pport
;
14047 vports
= lpfc_create_vport_work_array(phba
);
14048 if (vports
!= NULL
)
14049 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
14050 if (phba
->fcf
.fcfi
== fcfi
&&
14051 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
14052 vports
[i
]->fc_myDID
== did
) {
14057 lpfc_destroy_vport_work_array(phba
, vports
);
14062 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14063 * @vport: The vport to work on.
14065 * This function updates the receive sequence time stamp for this vport. The
14066 * receive sequence time stamp indicates the time that the last frame of the
14067 * the sequence that has been idle for the longest amount of time was received.
14068 * the driver uses this time stamp to indicate if any received sequences have
14072 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
14074 struct lpfc_dmabuf
*h_buf
;
14075 struct hbq_dmabuf
*dmabuf
= NULL
;
14077 /* get the oldest sequence on the rcv list */
14078 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
14079 struct lpfc_dmabuf
, list
);
14082 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14083 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
14087 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14088 * @vport: The vport that the received sequences were sent to.
14090 * This function cleans up all outstanding received sequences. This is called
14091 * by the driver when a link event or user action invalidates all the received
14095 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
14097 struct lpfc_dmabuf
*h_buf
, *hnext
;
14098 struct lpfc_dmabuf
*d_buf
, *dnext
;
14099 struct hbq_dmabuf
*dmabuf
= NULL
;
14101 /* start with the oldest sequence on the rcv list */
14102 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
14103 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14104 list_del_init(&dmabuf
->hbuf
.list
);
14105 list_for_each_entry_safe(d_buf
, dnext
,
14106 &dmabuf
->dbuf
.list
, list
) {
14107 list_del_init(&d_buf
->list
);
14108 lpfc_in_buf_free(vport
->phba
, d_buf
);
14110 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
14115 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14116 * @vport: The vport that the received sequences were sent to.
14118 * This function determines whether any received sequences have timed out by
14119 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14120 * indicates that there is at least one timed out sequence this routine will
14121 * go through the received sequences one at a time from most inactive to most
14122 * active to determine which ones need to be cleaned up. Once it has determined
14123 * that a sequence needs to be cleaned up it will simply free up the resources
14124 * without sending an abort.
14127 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
14129 struct lpfc_dmabuf
*h_buf
, *hnext
;
14130 struct lpfc_dmabuf
*d_buf
, *dnext
;
14131 struct hbq_dmabuf
*dmabuf
= NULL
;
14132 unsigned long timeout
;
14133 int abort_count
= 0;
14135 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
14136 vport
->rcv_buffer_time_stamp
);
14137 if (list_empty(&vport
->rcv_buffer_list
) ||
14138 time_before(jiffies
, timeout
))
14140 /* start with the oldest sequence on the rcv list */
14141 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
14142 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14143 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
14144 dmabuf
->time_stamp
);
14145 if (time_before(jiffies
, timeout
))
14148 list_del_init(&dmabuf
->hbuf
.list
);
14149 list_for_each_entry_safe(d_buf
, dnext
,
14150 &dmabuf
->dbuf
.list
, list
) {
14151 list_del_init(&d_buf
->list
);
14152 lpfc_in_buf_free(vport
->phba
, d_buf
);
14154 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
14157 lpfc_update_rcv_time_stamp(vport
);
14161 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
14162 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
14164 * This function searches through the existing incomplete sequences that have
14165 * been sent to this @vport. If the frame matches one of the incomplete
14166 * sequences then the dbuf in the @dmabuf is added to the list of frames that
14167 * make up that sequence. If no sequence is found that matches this frame then
14168 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
14169 * This function returns a pointer to the first dmabuf in the sequence list that
14170 * the frame was linked to.
14172 static struct hbq_dmabuf
*
14173 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
14175 struct fc_frame_header
*new_hdr
;
14176 struct fc_frame_header
*temp_hdr
;
14177 struct lpfc_dmabuf
*d_buf
;
14178 struct lpfc_dmabuf
*h_buf
;
14179 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
14180 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
14182 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
14183 dmabuf
->time_stamp
= jiffies
;
14184 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
14185 /* Use the hdr_buf to find the sequence that this frame belongs to */
14186 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
14187 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
14188 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
14189 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
14190 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
14192 /* found a pending sequence that matches this frame */
14193 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14198 * This indicates first frame received for this sequence.
14199 * Queue the buffer on the vport's rcv_buffer_list.
14201 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
14202 lpfc_update_rcv_time_stamp(vport
);
14205 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
14206 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
14207 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
14208 list_del_init(&seq_dmabuf
->hbuf
.list
);
14209 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
14210 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
14211 lpfc_update_rcv_time_stamp(vport
);
14214 /* move this sequence to the tail to indicate a young sequence */
14215 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
14216 seq_dmabuf
->time_stamp
= jiffies
;
14217 lpfc_update_rcv_time_stamp(vport
);
14218 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
14219 temp_hdr
= dmabuf
->hbuf
.virt
;
14220 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
14223 /* find the correct place in the sequence to insert this frame */
14224 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
14225 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
14226 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
14228 * If the frame's sequence count is greater than the frame on
14229 * the list then insert the frame right after this frame
14231 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
14232 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
14233 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
14241 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
14242 * @vport: pointer to a vitural port
14243 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14245 * This function tries to abort from the partially assembed sequence, described
14246 * by the information from basic abbort @dmabuf. It checks to see whether such
14247 * partially assembled sequence held by the driver. If so, it shall free up all
14248 * the frames from the partially assembled sequence.
14251 * true -- if there is matching partially assembled sequence present and all
14252 * the frames freed with the sequence;
14253 * false -- if there is no matching partially assembled sequence present so
14254 * nothing got aborted in the lower layer driver
14257 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
14258 struct hbq_dmabuf
*dmabuf
)
14260 struct fc_frame_header
*new_hdr
;
14261 struct fc_frame_header
*temp_hdr
;
14262 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
14263 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
14265 /* Use the hdr_buf to find the sequence that matches this frame */
14266 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
14267 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
14268 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
14269 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
14270 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
14271 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
14272 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
14273 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
14275 /* found a pending sequence that matches this frame */
14276 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14280 /* Free up all the frames from the partially assembled sequence */
14282 list_for_each_entry_safe(d_buf
, n_buf
,
14283 &seq_dmabuf
->dbuf
.list
, list
) {
14284 list_del_init(&d_buf
->list
);
14285 lpfc_in_buf_free(vport
->phba
, d_buf
);
14293 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
14294 * @vport: pointer to a vitural port
14295 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14297 * This function tries to abort from the assembed sequence from upper level
14298 * protocol, described by the information from basic abbort @dmabuf. It
14299 * checks to see whether such pending context exists at upper level protocol.
14300 * If so, it shall clean up the pending context.
14303 * true -- if there is matching pending context of the sequence cleaned
14305 * false -- if there is no matching pending context of the sequence present
14309 lpfc_sli4_abort_ulp_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
14311 struct lpfc_hba
*phba
= vport
->phba
;
14314 /* Accepting abort at ulp with SLI4 only */
14315 if (phba
->sli_rev
< LPFC_SLI_REV4
)
14318 /* Register all caring upper level protocols to attend abort */
14319 handled
= lpfc_ct_handle_unsol_abort(phba
, dmabuf
);
14327 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
14328 * @phba: Pointer to HBA context object.
14329 * @cmd_iocbq: pointer to the command iocbq structure.
14330 * @rsp_iocbq: pointer to the response iocbq structure.
14332 * This function handles the sequence abort response iocb command complete
14333 * event. It properly releases the memory allocated to the sequence abort
14337 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba
*phba
,
14338 struct lpfc_iocbq
*cmd_iocbq
,
14339 struct lpfc_iocbq
*rsp_iocbq
)
14341 struct lpfc_nodelist
*ndlp
;
14344 ndlp
= (struct lpfc_nodelist
*)cmd_iocbq
->context1
;
14345 lpfc_nlp_put(ndlp
);
14346 lpfc_nlp_not_used(ndlp
);
14347 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
14350 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
14351 if (rsp_iocbq
&& rsp_iocbq
->iocb
.ulpStatus
)
14352 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14353 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
14354 rsp_iocbq
->iocb
.ulpStatus
,
14355 rsp_iocbq
->iocb
.un
.ulpWord
[4]);
14359 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
14360 * @phba: Pointer to HBA context object.
14361 * @xri: xri id in transaction.
14363 * This function validates the xri maps to the known range of XRIs allocated an
14364 * used by the driver.
14367 lpfc_sli4_xri_inrange(struct lpfc_hba
*phba
,
14372 for (i
= 0; i
< phba
->sli4_hba
.max_cfg_param
.max_xri
; i
++) {
14373 if (xri
== phba
->sli4_hba
.xri_ids
[i
])
14380 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
14381 * @phba: Pointer to HBA context object.
14382 * @fc_hdr: pointer to a FC frame header.
14384 * This function sends a basic response to a previous unsol sequence abort
14385 * event after aborting the sequence handling.
14388 lpfc_sli4_seq_abort_rsp(struct lpfc_vport
*vport
,
14389 struct fc_frame_header
*fc_hdr
, bool aborted
)
14391 struct lpfc_hba
*phba
= vport
->phba
;
14392 struct lpfc_iocbq
*ctiocb
= NULL
;
14393 struct lpfc_nodelist
*ndlp
;
14394 uint16_t oxid
, rxid
, xri
, lxri
;
14395 uint32_t sid
, fctl
;
14399 if (!lpfc_is_link_up(phba
))
14402 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
14403 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
14404 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
14406 ndlp
= lpfc_findnode_did(vport
, sid
);
14408 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
14410 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
14411 "1268 Failed to allocate ndlp for "
14412 "oxid:x%x SID:x%x\n", oxid
, sid
);
14415 lpfc_nlp_init(vport
, ndlp
, sid
);
14416 /* Put ndlp onto pport node list */
14417 lpfc_enqueue_node(vport
, ndlp
);
14418 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
14419 /* re-setup ndlp without removing from node list */
14420 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
14422 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
14423 "3275 Failed to active ndlp found "
14424 "for oxid:x%x SID:x%x\n", oxid
, sid
);
14429 /* Allocate buffer for rsp iocb */
14430 ctiocb
= lpfc_sli_get_iocbq(phba
);
14434 /* Extract the F_CTL field from FC_HDR */
14435 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
14437 icmd
= &ctiocb
->iocb
;
14438 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
14439 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
14440 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
14441 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
14442 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
14444 /* Fill in the rest of iocb fields */
14445 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
14446 icmd
->ulpBdeCount
= 0;
14448 icmd
->ulpClass
= CLASS3
;
14449 icmd
->ulpContext
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
14450 ctiocb
->context1
= lpfc_nlp_get(ndlp
);
14452 ctiocb
->iocb_cmpl
= NULL
;
14453 ctiocb
->vport
= phba
->pport
;
14454 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_rsp_cmpl
;
14455 ctiocb
->sli4_lxritag
= NO_XRI
;
14456 ctiocb
->sli4_xritag
= NO_XRI
;
14458 if (fctl
& FC_FC_EX_CTX
)
14459 /* Exchange responder sent the abort so we
14465 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
14466 if (lxri
!= NO_XRI
)
14467 lpfc_set_rrq_active(phba
, ndlp
, lxri
,
14468 (xri
== oxid
) ? rxid
: oxid
, 0);
14469 /* For BA_ABTS from exchange responder, if the logical xri with
14470 * the oxid maps to the FCP XRI range, the port no longer has
14471 * that exchange context, send a BLS_RJT. Override the IOCB for
14474 if ((fctl
& FC_FC_EX_CTX
) &&
14475 (lxri
> lpfc_sli4_get_els_iocb_cnt(phba
))) {
14476 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
14477 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
14478 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
14479 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
14482 /* If BA_ABTS failed to abort a partially assembled receive sequence,
14483 * the driver no longer has that exchange, send a BLS_RJT. Override
14484 * the IOCB for a BA_RJT.
14486 if (aborted
== false) {
14487 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
14488 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
14489 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
14490 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
14493 if (fctl
& FC_FC_EX_CTX
) {
14494 /* ABTS sent by responder to CT exchange, construction
14495 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
14496 * field and RX_ID from ABTS for RX_ID field.
14498 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_RSP
);
14500 /* ABTS sent by initiator to CT exchange, construction
14501 * of BA_ACC will need to allocate a new XRI as for the
14504 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_INT
);
14506 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_rsp
, rxid
);
14507 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_rsp
, oxid
);
14509 /* Xmit CT abts response on exchange <xid> */
14510 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
14511 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
14512 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
, phba
->link_state
);
14514 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
14515 if (rc
== IOCB_ERROR
) {
14516 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
14517 "2925 Failed to issue CT ABTS RSP x%x on "
14518 "xri x%x, Data x%x\n",
14519 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
,
14521 lpfc_nlp_put(ndlp
);
14522 ctiocb
->context1
= NULL
;
14523 lpfc_sli_release_iocbq(phba
, ctiocb
);
14528 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
14529 * @vport: Pointer to the vport on which this sequence was received
14530 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14532 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
14533 * receive sequence is only partially assembed by the driver, it shall abort
14534 * the partially assembled frames for the sequence. Otherwise, if the
14535 * unsolicited receive sequence has been completely assembled and passed to
14536 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
14537 * unsolicited sequence has been aborted. After that, it will issue a basic
14538 * accept to accept the abort.
14541 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
14542 struct hbq_dmabuf
*dmabuf
)
14544 struct lpfc_hba
*phba
= vport
->phba
;
14545 struct fc_frame_header fc_hdr
;
14549 /* Make a copy of fc_hdr before the dmabuf being released */
14550 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
14551 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
14553 if (fctl
& FC_FC_EX_CTX
) {
14554 /* ABTS by responder to exchange, no cleanup needed */
14557 /* ABTS by initiator to exchange, need to do cleanup */
14558 aborted
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
14559 if (aborted
== false)
14560 aborted
= lpfc_sli4_abort_ulp_seq(vport
, dmabuf
);
14562 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
14564 /* Respond with BA_ACC or BA_RJT accordingly */
14565 lpfc_sli4_seq_abort_rsp(vport
, &fc_hdr
, aborted
);
14569 * lpfc_seq_complete - Indicates if a sequence is complete
14570 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14572 * This function checks the sequence, starting with the frame described by
14573 * @dmabuf, to see if all the frames associated with this sequence are present.
14574 * the frames associated with this sequence are linked to the @dmabuf using the
14575 * dbuf list. This function looks for two major things. 1) That the first frame
14576 * has a sequence count of zero. 2) There is a frame with last frame of sequence
14577 * set. 3) That there are no holes in the sequence count. The function will
14578 * return 1 when the sequence is complete, otherwise it will return 0.
14581 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
14583 struct fc_frame_header
*hdr
;
14584 struct lpfc_dmabuf
*d_buf
;
14585 struct hbq_dmabuf
*seq_dmabuf
;
14589 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
14590 /* make sure first fame of sequence has a sequence count of zero */
14591 if (hdr
->fh_seq_cnt
!= seq_count
)
14593 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
14594 hdr
->fh_f_ctl
[1] << 8 |
14596 /* If last frame of sequence we can return success. */
14597 if (fctl
& FC_FC_END_SEQ
)
14599 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
14600 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
14601 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
14602 /* If there is a hole in the sequence count then fail. */
14603 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
14605 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
14606 hdr
->fh_f_ctl
[1] << 8 |
14608 /* If last frame of sequence we can return success. */
14609 if (fctl
& FC_FC_END_SEQ
)
14616 * lpfc_prep_seq - Prep sequence for ULP processing
14617 * @vport: Pointer to the vport on which this sequence was received
14618 * @dmabuf: pointer to a dmabuf that describes the FC sequence
14620 * This function takes a sequence, described by a list of frames, and creates
14621 * a list of iocbq structures to describe the sequence. This iocbq list will be
14622 * used to issue to the generic unsolicited sequence handler. This routine
14623 * returns a pointer to the first iocbq in the list. If the function is unable
14624 * to allocate an iocbq then it throw out the received frames that were not
14625 * able to be described and return a pointer to the first iocbq. If unable to
14626 * allocate any iocbqs (including the first) this function will return NULL.
14628 static struct lpfc_iocbq
*
14629 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
14631 struct hbq_dmabuf
*hbq_buf
;
14632 struct lpfc_dmabuf
*d_buf
, *n_buf
;
14633 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
14634 struct fc_frame_header
*fc_hdr
;
14636 uint32_t len
, tot_len
;
14637 struct ulp_bde64
*pbde
;
14639 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
14640 /* remove from receive buffer list */
14641 list_del_init(&seq_dmabuf
->hbuf
.list
);
14642 lpfc_update_rcv_time_stamp(vport
);
14643 /* get the Remote Port's SID */
14644 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
14646 /* Get an iocbq struct to fill in. */
14647 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
14649 /* Initialize the first IOCB. */
14650 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
14651 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
14653 /* Check FC Header to see what TYPE of frame we are rcv'ing */
14654 if (sli4_type_from_fc_hdr(fc_hdr
) == FC_TYPE_ELS
) {
14655 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_ELS64_CX
;
14656 first_iocbq
->iocb
.un
.rcvels
.parmRo
=
14657 sli4_did_from_fc_hdr(fc_hdr
);
14658 first_iocbq
->iocb
.ulpPU
= PARM_NPIV_DID
;
14660 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
14661 first_iocbq
->iocb
.ulpContext
= NO_XRI
;
14662 first_iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
=
14663 be16_to_cpu(fc_hdr
->fh_ox_id
);
14664 /* iocbq is prepped for internal consumption. Physical vpi. */
14665 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
14666 vport
->phba
->vpi_ids
[vport
->vpi
];
14667 /* put the first buffer into the first IOCBq */
14668 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
14669 first_iocbq
->context3
= NULL
;
14670 first_iocbq
->iocb
.ulpBdeCount
= 1;
14671 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
14672 LPFC_DATA_BUF_SIZE
;
14673 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
14674 tot_len
= bf_get(lpfc_rcqe_length
,
14675 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
14676 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
14678 iocbq
= first_iocbq
;
14680 * Each IOCBq can have two Buffers assigned, so go through the list
14681 * of buffers for this sequence and save two buffers in each IOCBq
14683 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
14685 lpfc_in_buf_free(vport
->phba
, d_buf
);
14688 if (!iocbq
->context3
) {
14689 iocbq
->context3
= d_buf
;
14690 iocbq
->iocb
.ulpBdeCount
++;
14691 pbde
= (struct ulp_bde64
*)
14692 &iocbq
->iocb
.unsli3
.sli3Words
[4];
14693 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
14695 /* We need to get the size out of the right CQE */
14696 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
14697 len
= bf_get(lpfc_rcqe_length
,
14698 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
14699 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+= len
;
14702 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
14705 first_iocbq
->iocb
.ulpStatus
=
14706 IOSTAT_FCP_RSP_ERROR
;
14707 first_iocbq
->iocb
.un
.ulpWord
[4] =
14708 IOERR_NO_RESOURCES
;
14710 lpfc_in_buf_free(vport
->phba
, d_buf
);
14713 iocbq
->context2
= d_buf
;
14714 iocbq
->context3
= NULL
;
14715 iocbq
->iocb
.ulpBdeCount
= 1;
14716 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
14717 LPFC_DATA_BUF_SIZE
;
14719 /* We need to get the size out of the right CQE */
14720 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
14721 len
= bf_get(lpfc_rcqe_length
,
14722 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
14724 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
14726 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
14727 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
14730 return first_iocbq
;
14734 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
14735 struct hbq_dmabuf
*seq_dmabuf
)
14737 struct fc_frame_header
*fc_hdr
;
14738 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
14739 struct lpfc_hba
*phba
= vport
->phba
;
14741 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
14742 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
14744 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14745 "2707 Ring %d handler: Failed to allocate "
14746 "iocb Rctl x%x Type x%x received\n",
14748 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
14751 if (!lpfc_complete_unsol_iocb(phba
,
14752 &phba
->sli
.ring
[LPFC_ELS_RING
],
14753 iocbq
, fc_hdr
->fh_r_ctl
,
14755 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14756 "2540 Ring %d handler: unexpected Rctl "
14757 "x%x Type x%x received\n",
14759 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
14761 /* Free iocb created in lpfc_prep_seq */
14762 list_for_each_entry_safe(curr_iocb
, next_iocb
,
14763 &iocbq
->list
, list
) {
14764 list_del_init(&curr_iocb
->list
);
14765 lpfc_sli_release_iocbq(phba
, curr_iocb
);
14767 lpfc_sli_release_iocbq(phba
, iocbq
);
14771 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
14772 * @phba: Pointer to HBA context object.
14774 * This function is called with no lock held. This function processes all
14775 * the received buffers and gives it to upper layers when a received buffer
14776 * indicates that it is the final frame in the sequence. The interrupt
14777 * service routine processes received buffers at interrupt contexts and adds
14778 * received dma buffers to the rb_pend_list queue and signals the worker thread.
14779 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
14780 * appropriate receive function when the final frame in a sequence is received.
14783 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
14784 struct hbq_dmabuf
*dmabuf
)
14786 struct hbq_dmabuf
*seq_dmabuf
;
14787 struct fc_frame_header
*fc_hdr
;
14788 struct lpfc_vport
*vport
;
14792 /* Process each received buffer */
14793 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
14794 /* check to see if this a valid type of frame */
14795 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
14796 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
14799 if ((bf_get(lpfc_cqe_code
,
14800 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
) == CQE_CODE_RECEIVE_V1
))
14801 fcfi
= bf_get(lpfc_rcqe_fcf_id_v1
,
14802 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
14804 fcfi
= bf_get(lpfc_rcqe_fcf_id
,
14805 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
14807 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
14809 /* throw out the frame */
14810 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
14814 /* d_id this frame is directed to */
14815 did
= sli4_did_from_fc_hdr(fc_hdr
);
14817 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
14818 if (!(vport
->vpi_state
& LPFC_VPI_REGISTERED
) &&
14819 (did
!= Fabric_DID
)) {
14821 * Throw out the frame if we are not pt2pt.
14822 * The pt2pt protocol allows for discovery frames
14823 * to be received without a registered VPI.
14825 if (!(vport
->fc_flag
& FC_PT2PT
) ||
14826 (phba
->link_state
== LPFC_HBA_READY
)) {
14827 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
14832 /* Handle the basic abort sequence (BA_ABTS) event */
14833 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
14834 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
14838 /* Link this frame */
14839 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
14841 /* unable to add frame to vport - throw it out */
14842 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
14845 /* If not last frame in sequence continue processing frames. */
14846 if (!lpfc_seq_complete(seq_dmabuf
))
14849 /* Send the complete sequence to the upper layer protocol */
14850 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
14854 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
14855 * @phba: pointer to lpfc hba data structure.
14857 * This routine is invoked to post rpi header templates to the
14858 * HBA consistent with the SLI-4 interface spec. This routine
14859 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14860 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14862 * This routine does not require any locks. It's usage is expected
14863 * to be driver load or reset recovery when the driver is
14868 * -EIO - The mailbox failed to complete successfully.
14869 * When this error occurs, the driver is not guaranteed
14870 * to have any rpi regions posted to the device and
14871 * must either attempt to repost the regions or take a
14875 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
14877 struct lpfc_rpi_hdr
*rpi_page
;
14881 /* SLI4 ports that support extents do not require RPI headers. */
14882 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
14884 if (phba
->sli4_hba
.extents_in_use
)
14887 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
14889 * Assign the rpi headers a physical rpi only if the driver
14890 * has not initialized those resources. A port reset only
14891 * needs the headers posted.
14893 if (bf_get(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) !=
14895 rpi_page
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
14897 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
14898 if (rc
!= MBX_SUCCESS
) {
14899 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14900 "2008 Error %d posting all rpi "
14908 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
14909 LPFC_RPI_RSRC_RDY
);
14914 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
14915 * @phba: pointer to lpfc hba data structure.
14916 * @rpi_page: pointer to the rpi memory region.
14918 * This routine is invoked to post a single rpi header to the
14919 * HBA consistent with the SLI-4 interface spec. This memory region
14920 * maps up to 64 rpi context regions.
14924 * -ENOMEM - No available memory
14925 * -EIO - The mailbox failed to complete successfully.
14928 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
14930 LPFC_MBOXQ_t
*mboxq
;
14931 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
14933 uint32_t shdr_status
, shdr_add_status
;
14934 union lpfc_sli4_cfg_shdr
*shdr
;
14936 /* SLI4 ports that support extents do not require RPI headers. */
14937 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
14939 if (phba
->sli4_hba
.extents_in_use
)
14942 /* The port is notified of the header region via a mailbox command. */
14943 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14945 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14946 "2001 Unable to allocate memory for issuing "
14947 "SLI_CONFIG_SPECIAL mailbox command\n");
14951 /* Post all rpi memory regions to the port. */
14952 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
14953 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14954 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
14955 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
14956 sizeof(struct lpfc_sli4_cfg_mhdr
),
14957 LPFC_SLI4_MBX_EMBED
);
14960 /* Post the physical rpi to the port for this rpi header. */
14961 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
14962 rpi_page
->start_rpi
);
14963 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
14964 hdr_tmpl
, rpi_page
->page_count
);
14966 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
14967 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
14968 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
14969 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
14970 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14971 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14972 if (rc
!= MBX_TIMEOUT
)
14973 mempool_free(mboxq
, phba
->mbox_mem_pool
);
14974 if (shdr_status
|| shdr_add_status
|| rc
) {
14975 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14976 "2514 POST_RPI_HDR mailbox failed with "
14977 "status x%x add_status x%x, mbx status x%x\n",
14978 shdr_status
, shdr_add_status
, rc
);
14985 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
14986 * @phba: pointer to lpfc hba data structure.
14988 * This routine is invoked to post rpi header templates to the
14989 * HBA consistent with the SLI-4 interface spec. This routine
14990 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14991 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14994 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14995 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14998 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
15001 uint16_t max_rpi
, rpi_limit
;
15002 uint16_t rpi_remaining
, lrpi
= 0;
15003 struct lpfc_rpi_hdr
*rpi_hdr
;
15005 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
15006 rpi_limit
= phba
->sli4_hba
.next_rpi
;
15009 * Fetch the next logical rpi. Because this index is logical,
15010 * the driver starts at 0 each time.
15012 spin_lock_irq(&phba
->hbalock
);
15013 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, 0);
15014 if (rpi
>= rpi_limit
)
15015 rpi
= LPFC_RPI_ALLOC_ERROR
;
15017 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
15018 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
15019 phba
->sli4_hba
.rpi_count
++;
15023 * Don't try to allocate more rpi header regions if the device limit
15024 * has been exhausted.
15026 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
15027 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
15028 spin_unlock_irq(&phba
->hbalock
);
15033 * RPI header postings are not required for SLI4 ports capable of
15036 if (!phba
->sli4_hba
.rpi_hdrs_in_use
) {
15037 spin_unlock_irq(&phba
->hbalock
);
15042 * If the driver is running low on rpi resources, allocate another
15043 * page now. Note that the next_rpi value is used because
15044 * it represents how many are actually in use whereas max_rpi notes
15045 * how many are supported max by the device.
15047 rpi_remaining
= phba
->sli4_hba
.next_rpi
- phba
->sli4_hba
.rpi_count
;
15048 spin_unlock_irq(&phba
->hbalock
);
15049 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
15050 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
15052 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15053 "2002 Error Could not grow rpi "
15056 lrpi
= rpi_hdr
->start_rpi
;
15057 rpi_hdr
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
15058 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
15066 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15067 * @phba: pointer to lpfc hba data structure.
15069 * This routine is invoked to release an rpi to the pool of
15070 * available rpis maintained by the driver.
15073 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
15075 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
15076 phba
->sli4_hba
.rpi_count
--;
15077 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
15082 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15083 * @phba: pointer to lpfc hba data structure.
15085 * This routine is invoked to release an rpi to the pool of
15086 * available rpis maintained by the driver.
15089 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
15091 spin_lock_irq(&phba
->hbalock
);
15092 __lpfc_sli4_free_rpi(phba
, rpi
);
15093 spin_unlock_irq(&phba
->hbalock
);
15097 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15098 * @phba: pointer to lpfc hba data structure.
15100 * This routine is invoked to remove the memory region that
15101 * provided rpi via a bitmask.
15104 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
15106 kfree(phba
->sli4_hba
.rpi_bmask
);
15107 kfree(phba
->sli4_hba
.rpi_ids
);
15108 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
15112 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
15113 * @phba: pointer to lpfc hba data structure.
15115 * This routine is invoked to remove the memory region that
15116 * provided rpi via a bitmask.
15119 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
,
15120 void (*cmpl
)(struct lpfc_hba
*, LPFC_MBOXQ_t
*), void *arg
)
15122 LPFC_MBOXQ_t
*mboxq
;
15123 struct lpfc_hba
*phba
= ndlp
->phba
;
15126 /* The port is notified of the header region via a mailbox command. */
15127 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15131 /* Post all rpi memory regions to the port. */
15132 lpfc_resume_rpi(mboxq
, ndlp
);
15134 mboxq
->mbox_cmpl
= cmpl
;
15135 mboxq
->context1
= arg
;
15136 mboxq
->context2
= ndlp
;
15138 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
15139 mboxq
->vport
= ndlp
->vport
;
15140 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
15141 if (rc
== MBX_NOT_FINISHED
) {
15142 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15143 "2010 Resume RPI Mailbox failed "
15144 "status %d, mbxStatus x%x\n", rc
,
15145 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
15146 mempool_free(mboxq
, phba
->mbox_mem_pool
);
15153 * lpfc_sli4_init_vpi - Initialize a vpi with the port
15154 * @vport: Pointer to the vport for which the vpi is being initialized
15156 * This routine is invoked to activate a vpi with the port.
15160 * -Evalue otherwise
15163 lpfc_sli4_init_vpi(struct lpfc_vport
*vport
)
15165 LPFC_MBOXQ_t
*mboxq
;
15167 int retval
= MBX_SUCCESS
;
15169 struct lpfc_hba
*phba
= vport
->phba
;
15170 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15173 lpfc_init_vpi(phba
, mboxq
, vport
->vpi
);
15174 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
15175 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
15176 if (rc
!= MBX_SUCCESS
) {
15177 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
15178 "2022 INIT VPI Mailbox failed "
15179 "status %d, mbxStatus x%x\n", rc
,
15180 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
15183 if (rc
!= MBX_TIMEOUT
)
15184 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
15190 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
15191 * @phba: pointer to lpfc hba data structure.
15192 * @mboxq: Pointer to mailbox object.
15194 * This routine is invoked to manually add a single FCF record. The caller
15195 * must pass a completely initialized FCF_Record. This routine takes
15196 * care of the nonembedded mailbox operations.
15199 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
15202 union lpfc_sli4_cfg_shdr
*shdr
;
15203 uint32_t shdr_status
, shdr_add_status
;
15205 virt_addr
= mboxq
->sge_array
->addr
[0];
15206 /* The IOCTL status is embedded in the mailbox subheader. */
15207 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
15208 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
15209 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
15211 if ((shdr_status
|| shdr_add_status
) &&
15212 (shdr_status
!= STATUS_FCF_IN_USE
))
15213 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15214 "2558 ADD_FCF_RECORD mailbox failed with "
15215 "status x%x add_status x%x\n",
15216 shdr_status
, shdr_add_status
);
15218 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15222 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
15223 * @phba: pointer to lpfc hba data structure.
15224 * @fcf_record: pointer to the initialized fcf record to add.
15226 * This routine is invoked to manually add a single FCF record. The caller
15227 * must pass a completely initialized FCF_Record. This routine takes
15228 * care of the nonembedded mailbox operations.
15231 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
15234 LPFC_MBOXQ_t
*mboxq
;
15237 dma_addr_t phys_addr
;
15238 struct lpfc_mbx_sge sge
;
15239 uint32_t alloc_len
, req_len
;
15242 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15244 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15245 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
15249 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
15252 /* Allocate DMA memory and set up the non-embedded mailbox command */
15253 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
15254 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
15255 req_len
, LPFC_SLI4_MBX_NEMBED
);
15256 if (alloc_len
< req_len
) {
15257 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15258 "2523 Allocated DMA memory size (x%x) is "
15259 "less than the requested DMA memory "
15260 "size (x%x)\n", alloc_len
, req_len
);
15261 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15266 * Get the first SGE entry from the non-embedded DMA memory. This
15267 * routine only uses a single SGE.
15269 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
15270 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
15271 virt_addr
= mboxq
->sge_array
->addr
[0];
15273 * Configure the FCF record for FCFI 0. This is the driver's
15274 * hardcoded default and gets used in nonFIP mode.
15276 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
15277 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
15278 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
15281 * Copy the fcf_index and the FCF Record Data. The data starts after
15282 * the FCoE header plus word10. The data copy needs to be endian
15285 bytep
+= sizeof(uint32_t);
15286 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
15287 mboxq
->vport
= phba
->pport
;
15288 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
15289 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
15290 if (rc
== MBX_NOT_FINISHED
) {
15291 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15292 "2515 ADD_FCF_RECORD mailbox failed with "
15293 "status 0x%x\n", rc
);
15294 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15303 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
15304 * @phba: pointer to lpfc hba data structure.
15305 * @fcf_record: pointer to the fcf record to write the default data.
15306 * @fcf_index: FCF table entry index.
15308 * This routine is invoked to build the driver's default FCF record. The
15309 * values used are hardcoded. This routine handles memory initialization.
15313 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
15314 struct fcf_record
*fcf_record
,
15315 uint16_t fcf_index
)
15317 memset(fcf_record
, 0, sizeof(struct fcf_record
));
15318 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
15319 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
15320 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
15321 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
15322 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
15323 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
15324 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
15325 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
15326 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
15327 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
15328 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
15329 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
15330 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
15331 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
15332 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
15333 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
15334 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
15335 /* Set the VLAN bit map */
15336 if (phba
->valid_vlan
) {
15337 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
15338 = 1 << (phba
->vlan_id
% 8);
15343 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
15344 * @phba: pointer to lpfc hba data structure.
15345 * @fcf_index: FCF table entry offset.
15347 * This routine is invoked to scan the entire FCF table by reading FCF
15348 * record and processing it one at a time starting from the @fcf_index
15349 * for initial FCF discovery or fast FCF failover rediscovery.
15351 * Return 0 if the mailbox command is submitted successfully, none 0
15355 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
15358 LPFC_MBOXQ_t
*mboxq
;
15360 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
15361 phba
->fcoe_cvl_eventtag_attn
= phba
->fcoe_cvl_eventtag
;
15362 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15364 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15365 "2000 Failed to allocate mbox for "
15368 goto fail_fcf_scan
;
15370 /* Construct the read FCF record mailbox command */
15371 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
15374 goto fail_fcf_scan
;
15376 /* Issue the mailbox command asynchronously */
15377 mboxq
->vport
= phba
->pport
;
15378 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
15380 spin_lock_irq(&phba
->hbalock
);
15381 phba
->hba_flag
|= FCF_TS_INPROG
;
15382 spin_unlock_irq(&phba
->hbalock
);
15384 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
15385 if (rc
== MBX_NOT_FINISHED
)
15388 /* Reset eligible FCF count for new scan */
15389 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
15390 phba
->fcf
.eligible_fcf_cnt
= 0;
15396 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15397 /* FCF scan failed, clear FCF_TS_INPROG flag */
15398 spin_lock_irq(&phba
->hbalock
);
15399 phba
->hba_flag
&= ~FCF_TS_INPROG
;
15400 spin_unlock_irq(&phba
->hbalock
);
15406 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
15407 * @phba: pointer to lpfc hba data structure.
15408 * @fcf_index: FCF table entry offset.
15410 * This routine is invoked to read an FCF record indicated by @fcf_index
15411 * and to use it for FLOGI roundrobin FCF failover.
15413 * Return 0 if the mailbox command is submitted successfully, none 0
15417 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
15420 LPFC_MBOXQ_t
*mboxq
;
15422 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15424 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
15425 "2763 Failed to allocate mbox for "
15428 goto fail_fcf_read
;
15430 /* Construct the read FCF record mailbox command */
15431 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
15434 goto fail_fcf_read
;
15436 /* Issue the mailbox command asynchronously */
15437 mboxq
->vport
= phba
->pport
;
15438 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
15439 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
15440 if (rc
== MBX_NOT_FINISHED
)
15446 if (error
&& mboxq
)
15447 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15452 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
15453 * @phba: pointer to lpfc hba data structure.
15454 * @fcf_index: FCF table entry offset.
15456 * This routine is invoked to read an FCF record indicated by @fcf_index to
15457 * determine whether it's eligible for FLOGI roundrobin failover list.
15459 * Return 0 if the mailbox command is submitted successfully, none 0
15463 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
15466 LPFC_MBOXQ_t
*mboxq
;
15468 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15470 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
15471 "2758 Failed to allocate mbox for "
15474 goto fail_fcf_read
;
15476 /* Construct the read FCF record mailbox command */
15477 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
15480 goto fail_fcf_read
;
15482 /* Issue the mailbox command asynchronously */
15483 mboxq
->vport
= phba
->pport
;
15484 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
15485 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
15486 if (rc
== MBX_NOT_FINISHED
)
15492 if (error
&& mboxq
)
15493 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
15498 * lpfc_check_next_fcf_pri
15499 * phba pointer to the lpfc_hba struct for this port.
15500 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
15501 * routine when the rr_bmask is empty. The FCF indecies are put into the
15502 * rr_bmask based on their priority level. Starting from the highest priority
15503 * to the lowest. The most likely FCF candidate will be in the highest
15504 * priority group. When this routine is called it searches the fcf_pri list for
15505 * next lowest priority group and repopulates the rr_bmask with only those
15508 * 1=success 0=failure
15511 lpfc_check_next_fcf_pri_level(struct lpfc_hba
*phba
)
15513 uint16_t next_fcf_pri
;
15514 uint16_t last_index
;
15515 struct lpfc_fcf_pri
*fcf_pri
;
15519 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
15520 LPFC_SLI4_FCF_TBL_INDX_MAX
);
15521 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
15522 "3060 Last IDX %d\n", last_index
);
15524 /* Verify the priority list has 2 or more entries */
15525 spin_lock_irq(&phba
->hbalock
);
15526 if (list_empty(&phba
->fcf
.fcf_pri_list
) ||
15527 list_is_singular(&phba
->fcf
.fcf_pri_list
)) {
15528 spin_unlock_irq(&phba
->hbalock
);
15529 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
15530 "3061 Last IDX %d\n", last_index
);
15531 return 0; /* Empty rr list */
15533 spin_unlock_irq(&phba
->hbalock
);
15537 * Clear the rr_bmask and set all of the bits that are at this
15540 memset(phba
->fcf
.fcf_rr_bmask
, 0,
15541 sizeof(*phba
->fcf
.fcf_rr_bmask
));
15542 spin_lock_irq(&phba
->hbalock
);
15543 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
15544 if (fcf_pri
->fcf_rec
.flag
& LPFC_FCF_FLOGI_FAILED
)
15547 * the 1st priority that has not FLOGI failed
15548 * will be the highest.
15551 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
15552 spin_unlock_irq(&phba
->hbalock
);
15553 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
15554 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
15555 fcf_pri
->fcf_rec
.fcf_index
);
15559 spin_lock_irq(&phba
->hbalock
);
15562 * if next_fcf_pri was not set above and the list is not empty then
15563 * we have failed flogis on all of them. So reset flogi failed
15564 * and start at the beginning.
15566 if (!next_fcf_pri
&& !list_empty(&phba
->fcf
.fcf_pri_list
)) {
15567 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
15568 fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_FLOGI_FAILED
;
15570 * the 1st priority that has not FLOGI failed
15571 * will be the highest.
15574 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
15575 spin_unlock_irq(&phba
->hbalock
);
15576 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
15577 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
15578 fcf_pri
->fcf_rec
.fcf_index
);
15582 spin_lock_irq(&phba
->hbalock
);
15586 spin_unlock_irq(&phba
->hbalock
);
15591 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
15592 * @phba: pointer to lpfc hba data structure.
15594 * This routine is to get the next eligible FCF record index in a round
15595 * robin fashion. If the next eligible FCF record index equals to the
15596 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
15597 * shall be returned, otherwise, the next eligible FCF record's index
15598 * shall be returned.
15601 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
15603 uint16_t next_fcf_index
;
15606 /* Search start from next bit of currently registered FCF index */
15607 next_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
15610 /* Determine the next fcf index to check */
15611 next_fcf_index
= (next_fcf_index
+ 1) % LPFC_SLI4_FCF_TBL_INDX_MAX
;
15612 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
15613 LPFC_SLI4_FCF_TBL_INDX_MAX
,
15616 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
15617 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
15619 * If we have wrapped then we need to clear the bits that
15620 * have been tested so that we can detect when we should
15621 * change the priority level.
15623 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
15624 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
15628 /* Check roundrobin failover list empty condition */
15629 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
||
15630 next_fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
15632 * If next fcf index is not found check if there are lower
15633 * Priority level fcf's in the fcf_priority list.
15634 * Set up the rr_bmask with all of the avaiable fcf bits
15635 * at that level and continue the selection process.
15637 if (lpfc_check_next_fcf_pri_level(phba
))
15638 goto initial_priority
;
15639 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
15640 "2844 No roundrobin failover FCF available\n");
15641 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
15642 return LPFC_FCOE_FCF_NEXT_NONE
;
15644 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
15645 "3063 Only FCF available idx %d, flag %x\n",
15647 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
);
15648 return next_fcf_index
;
15652 if (next_fcf_index
< LPFC_SLI4_FCF_TBL_INDX_MAX
&&
15653 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
&
15654 LPFC_FCF_FLOGI_FAILED
)
15655 goto next_priority
;
15657 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
15658 "2845 Get next roundrobin failover FCF (x%x)\n",
15661 return next_fcf_index
;
15665 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
15666 * @phba: pointer to lpfc hba data structure.
15668 * This routine sets the FCF record index in to the eligible bmask for
15669 * roundrobin failover search. It checks to make sure that the index
15670 * does not go beyond the range of the driver allocated bmask dimension
15671 * before setting the bit.
15673 * Returns 0 if the index bit successfully set, otherwise, it returns
15677 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
15679 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
15680 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
15681 "2610 FCF (x%x) reached driver's book "
15682 "keeping dimension:x%x\n",
15683 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
15686 /* Set the eligible FCF record index bmask */
15687 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
15689 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
15690 "2790 Set FCF (x%x) to roundrobin FCF failover "
15691 "bmask\n", fcf_index
);
15697 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
15698 * @phba: pointer to lpfc hba data structure.
15700 * This routine clears the FCF record index from the eligible bmask for
15701 * roundrobin failover search. It checks to make sure that the index
15702 * does not go beyond the range of the driver allocated bmask dimension
15703 * before clearing the bit.
15706 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
15708 struct lpfc_fcf_pri
*fcf_pri
;
15709 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
15710 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
15711 "2762 FCF (x%x) reached driver's book "
15712 "keeping dimension:x%x\n",
15713 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
15716 /* Clear the eligible FCF record index bmask */
15717 spin_lock_irq(&phba
->hbalock
);
15718 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
15719 if (fcf_pri
->fcf_rec
.fcf_index
== fcf_index
) {
15720 list_del_init(&fcf_pri
->list
);
15724 spin_unlock_irq(&phba
->hbalock
);
15725 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
15727 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
15728 "2791 Clear FCF (x%x) from roundrobin failover "
15729 "bmask\n", fcf_index
);
15733 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
15734 * @phba: pointer to lpfc hba data structure.
15736 * This routine is the completion routine for the rediscover FCF table mailbox
15737 * command. If the mailbox command returned failure, it will try to stop the
15738 * FCF rediscover wait timer.
15741 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
15743 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
15744 uint32_t shdr_status
, shdr_add_status
;
15746 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
15748 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
15749 &redisc_fcf
->header
.cfg_shdr
.response
);
15750 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
15751 &redisc_fcf
->header
.cfg_shdr
.response
);
15752 if (shdr_status
|| shdr_add_status
) {
15753 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
15754 "2746 Requesting for FCF rediscovery failed "
15755 "status x%x add_status x%x\n",
15756 shdr_status
, shdr_add_status
);
15757 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
15758 spin_lock_irq(&phba
->hbalock
);
15759 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
15760 spin_unlock_irq(&phba
->hbalock
);
15762 * CVL event triggered FCF rediscover request failed,
15763 * last resort to re-try current registered FCF entry.
15765 lpfc_retry_pport_discovery(phba
);
15767 spin_lock_irq(&phba
->hbalock
);
15768 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
15769 spin_unlock_irq(&phba
->hbalock
);
15771 * DEAD FCF event triggered FCF rediscover request
15772 * failed, last resort to fail over as a link down
15773 * to FCF registration.
15775 lpfc_sli4_fcf_dead_failthrough(phba
);
15778 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
15779 "2775 Start FCF rediscover quiescent timer\n");
15781 * Start FCF rediscovery wait timer for pending FCF
15782 * before rescan FCF record table.
15784 lpfc_fcf_redisc_wait_start_timer(phba
);
15787 mempool_free(mbox
, phba
->mbox_mem_pool
);
15791 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
15792 * @phba: pointer to lpfc hba data structure.
15794 * This routine is invoked to request for rediscovery of the entire FCF table
15798 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
15800 LPFC_MBOXQ_t
*mbox
;
15801 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
15804 /* Cancel retry delay timers to all vports before FCF rediscover */
15805 lpfc_cancel_all_vport_retry_delay_timer(phba
);
15807 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15809 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15810 "2745 Failed to allocate mbox for "
15811 "requesting FCF rediscover.\n");
15815 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
15816 sizeof(struct lpfc_sli4_cfg_mhdr
));
15817 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
15818 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
15819 length
, LPFC_SLI4_MBX_EMBED
);
15821 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
15822 /* Set count to 0 for invalidating the entire FCF database */
15823 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
15825 /* Issue the mailbox command asynchronously */
15826 mbox
->vport
= phba
->pport
;
15827 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
15828 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
15830 if (rc
== MBX_NOT_FINISHED
) {
15831 mempool_free(mbox
, phba
->mbox_mem_pool
);
15838 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
15839 * @phba: pointer to lpfc hba data structure.
15841 * This function is the failover routine as a last resort to the FCF DEAD
15842 * event when driver failed to perform fast FCF failover.
15845 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
15847 uint32_t link_state
;
15850 * Last resort as FCF DEAD event failover will treat this as
15851 * a link down, but save the link state because we don't want
15852 * it to be changed to Link Down unless it is already down.
15854 link_state
= phba
->link_state
;
15855 lpfc_linkdown(phba
);
15856 phba
->link_state
= link_state
;
15858 /* Unregister FCF if no devices connected to it */
15859 lpfc_unregister_unused_fcf(phba
);
15863 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
15864 * @phba: pointer to lpfc hba data structure.
15865 * @rgn23_data: pointer to configure region 23 data.
15867 * This function gets SLI3 port configure region 23 data through memory dump
15868 * mailbox command. When it successfully retrieves data, the size of the data
15869 * will be returned, otherwise, 0 will be returned.
15872 lpfc_sli_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
15874 LPFC_MBOXQ_t
*pmb
= NULL
;
15876 uint32_t offset
= 0;
15882 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15884 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15885 "2600 failed to allocate mailbox memory\n");
15891 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
15892 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
15894 if (rc
!= MBX_SUCCESS
) {
15895 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
15896 "2601 failed to read config "
15897 "region 23, rc 0x%x Status 0x%x\n",
15898 rc
, mb
->mbxStatus
);
15899 mb
->un
.varDmp
.word_cnt
= 0;
15902 * dump mem may return a zero when finished or we got a
15903 * mailbox error, either way we are done.
15905 if (mb
->un
.varDmp
.word_cnt
== 0)
15907 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
15908 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
15910 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
15911 rgn23_data
+ offset
,
15912 mb
->un
.varDmp
.word_cnt
);
15913 offset
+= mb
->un
.varDmp
.word_cnt
;
15914 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
15916 mempool_free(pmb
, phba
->mbox_mem_pool
);
15921 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
15922 * @phba: pointer to lpfc hba data structure.
15923 * @rgn23_data: pointer to configure region 23 data.
15925 * This function gets SLI4 port configure region 23 data through memory dump
15926 * mailbox command. When it successfully retrieves data, the size of the data
15927 * will be returned, otherwise, 0 will be returned.
15930 lpfc_sli4_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
15932 LPFC_MBOXQ_t
*mboxq
= NULL
;
15933 struct lpfc_dmabuf
*mp
= NULL
;
15934 struct lpfc_mqe
*mqe
;
15935 uint32_t data_length
= 0;
15941 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15943 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15944 "3105 failed to allocate mailbox memory\n");
15948 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
))
15950 mqe
= &mboxq
->u
.mqe
;
15951 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
15952 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
15955 data_length
= mqe
->un
.mb_words
[5];
15956 if (data_length
== 0)
15958 if (data_length
> DMP_RGN23_SIZE
) {
15962 lpfc_sli_pcimem_bcopy((char *)mp
->virt
, rgn23_data
, data_length
);
15964 mempool_free(mboxq
, phba
->mbox_mem_pool
);
15966 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
15969 return data_length
;
15973 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
15974 * @phba: pointer to lpfc hba data structure.
15976 * This function read region 23 and parse TLV for port status to
15977 * decide if the user disaled the port. If the TLV indicates the
15978 * port is disabled, the hba_flag is set accordingly.
15981 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
15983 uint8_t *rgn23_data
= NULL
;
15984 uint32_t if_type
, data_size
, sub_tlv_len
, tlv_offset
;
15985 uint32_t offset
= 0;
15987 /* Get adapter Region 23 data */
15988 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
15992 if (phba
->sli_rev
< LPFC_SLI_REV4
)
15993 data_size
= lpfc_sli_get_config_region23(phba
, rgn23_data
);
15995 if_type
= bf_get(lpfc_sli_intf_if_type
,
15996 &phba
->sli4_hba
.sli_intf
);
15997 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
)
15999 data_size
= lpfc_sli4_get_config_region23(phba
, rgn23_data
);
16005 /* Check the region signature first */
16006 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
16007 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16008 "2619 Config region 23 has bad signature\n");
16013 /* Check the data structure version */
16014 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
16015 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16016 "2620 Config region 23 has bad version\n");
16021 /* Parse TLV entries in the region */
16022 while (offset
< data_size
) {
16023 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
16026 * If the TLV is not driver specific TLV or driver id is
16027 * not linux driver id, skip the record.
16029 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
16030 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
16031 (rgn23_data
[offset
+ 3] != 0)) {
16032 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16036 /* Driver found a driver specific TLV in the config region */
16037 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
16042 * Search for configured port state sub-TLV.
16044 while ((offset
< data_size
) &&
16045 (tlv_offset
< sub_tlv_len
)) {
16046 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
16051 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
16052 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16053 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16057 /* This HBA contains PORT_STE configured */
16058 if (!rgn23_data
[offset
+ 2])
16059 phba
->hba_flag
|= LINK_DISABLED
;
16071 * lpfc_wr_object - write an object to the firmware
16072 * @phba: HBA structure that indicates port to create a queue on.
16073 * @dmabuf_list: list of dmabufs to write to the port.
16074 * @size: the total byte value of the objects to write to the port.
16075 * @offset: the current offset to be used to start the transfer.
16077 * This routine will create a wr_object mailbox command to send to the port.
16078 * the mailbox command will be constructed using the dma buffers described in
16079 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16080 * BDEs that the imbedded mailbox can support. The @offset variable will be
16081 * used to indicate the starting offset of the transfer and will also return
16082 * the offset after the write object mailbox has completed. @size is used to
16083 * determine the end of the object and whether the eof bit should be set.
16085 * Return 0 is successful and offset will contain the the new offset to use
16086 * for the next write.
16087 * Return negative value for error cases.
16090 lpfc_wr_object(struct lpfc_hba
*phba
, struct list_head
*dmabuf_list
,
16091 uint32_t size
, uint32_t *offset
)
16093 struct lpfc_mbx_wr_object
*wr_object
;
16094 LPFC_MBOXQ_t
*mbox
;
16096 uint32_t shdr_status
, shdr_add_status
;
16098 union lpfc_sli4_cfg_shdr
*shdr
;
16099 struct lpfc_dmabuf
*dmabuf
;
16100 uint32_t written
= 0;
16102 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16106 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
16107 LPFC_MBOX_OPCODE_WRITE_OBJECT
,
16108 sizeof(struct lpfc_mbx_wr_object
) -
16109 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
16111 wr_object
= (struct lpfc_mbx_wr_object
*)&mbox
->u
.mqe
.un
.wr_object
;
16112 wr_object
->u
.request
.write_offset
= *offset
;
16113 sprintf((uint8_t *)wr_object
->u
.request
.object_name
, "/");
16114 wr_object
->u
.request
.object_name
[0] =
16115 cpu_to_le32(wr_object
->u
.request
.object_name
[0]);
16116 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 0);
16117 list_for_each_entry(dmabuf
, dmabuf_list
, list
) {
16118 if (i
>= LPFC_MBX_WR_CONFIG_MAX_BDE
|| written
>= size
)
16120 wr_object
->u
.request
.bde
[i
].addrLow
= putPaddrLow(dmabuf
->phys
);
16121 wr_object
->u
.request
.bde
[i
].addrHigh
=
16122 putPaddrHigh(dmabuf
->phys
);
16123 if (written
+ SLI4_PAGE_SIZE
>= size
) {
16124 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
16126 written
+= (size
- written
);
16127 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 1);
16129 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
16131 written
+= SLI4_PAGE_SIZE
;
16135 wr_object
->u
.request
.bde_count
= i
;
16136 bf_set(lpfc_wr_object_write_length
, &wr_object
->u
.request
, written
);
16137 if (!phba
->sli4_hba
.intr_enable
)
16138 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
16140 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
16141 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
16143 /* The IOCTL status is embedded in the mailbox subheader. */
16144 shdr
= (union lpfc_sli4_cfg_shdr
*) &wr_object
->header
.cfg_shdr
;
16145 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
16146 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
16147 if (rc
!= MBX_TIMEOUT
)
16148 mempool_free(mbox
, phba
->mbox_mem_pool
);
16149 if (shdr_status
|| shdr_add_status
|| rc
) {
16150 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16151 "3025 Write Object mailbox failed with "
16152 "status x%x add_status x%x, mbx status x%x\n",
16153 shdr_status
, shdr_add_status
, rc
);
16156 *offset
+= wr_object
->u
.response
.actual_write_length
;
16161 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
16162 * @vport: pointer to vport data structure.
16164 * This function iterate through the mailboxq and clean up all REG_LOGIN
16165 * and REG_VPI mailbox commands associated with the vport. This function
16166 * is called when driver want to restart discovery of the vport due to
16167 * a Clear Virtual Link event.
16170 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
16172 struct lpfc_hba
*phba
= vport
->phba
;
16173 LPFC_MBOXQ_t
*mb
, *nextmb
;
16174 struct lpfc_dmabuf
*mp
;
16175 struct lpfc_nodelist
*ndlp
;
16176 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
16177 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
16178 LIST_HEAD(mbox_cmd_list
);
16179 uint8_t restart_loop
;
16181 /* Clean up internally queued mailbox commands with the vport */
16182 spin_lock_irq(&phba
->hbalock
);
16183 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
16184 if (mb
->vport
!= vport
)
16187 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
16188 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
16191 list_del(&mb
->list
);
16192 list_add_tail(&mb
->list
, &mbox_cmd_list
);
16194 /* Clean up active mailbox command with the vport */
16195 mb
= phba
->sli
.mbox_active
;
16196 if (mb
&& (mb
->vport
== vport
)) {
16197 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
16198 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
16199 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
16200 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
16201 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
16202 /* Put reference count for delayed processing */
16203 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
16204 /* Unregister the RPI when mailbox complete */
16205 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
16208 /* Cleanup any mailbox completions which are not yet processed */
16211 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
16213 * If this mailox is already processed or it is
16214 * for another vport ignore it.
16216 if ((mb
->vport
!= vport
) ||
16217 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
))
16220 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
16221 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
16224 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
16225 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
16226 ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
16227 /* Unregister the RPI when mailbox complete */
16228 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
16230 spin_unlock_irq(&phba
->hbalock
);
16231 spin_lock(shost
->host_lock
);
16232 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
16233 spin_unlock(shost
->host_lock
);
16234 spin_lock_irq(&phba
->hbalock
);
16238 } while (restart_loop
);
16240 spin_unlock_irq(&phba
->hbalock
);
16242 /* Release the cleaned-up mailbox commands */
16243 while (!list_empty(&mbox_cmd_list
)) {
16244 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
16245 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
16246 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
16248 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
16251 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
16252 mb
->context2
= NULL
;
16254 spin_lock(shost
->host_lock
);
16255 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
16256 spin_unlock(shost
->host_lock
);
16257 lpfc_nlp_put(ndlp
);
16260 mempool_free(mb
, phba
->mbox_mem_pool
);
16263 /* Release the ndlp with the cleaned-up active mailbox command */
16264 if (act_mbx_ndlp
) {
16265 spin_lock(shost
->host_lock
);
16266 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
16267 spin_unlock(shost
->host_lock
);
16268 lpfc_nlp_put(act_mbx_ndlp
);
16273 * lpfc_drain_txq - Drain the txq
16274 * @phba: Pointer to HBA context object.
16276 * This function attempt to submit IOCBs on the txq
16277 * to the adapter. For SLI4 adapters, the txq contains
16278 * ELS IOCBs that have been deferred because the there
16279 * are no SGLs. This congestion can occur with large
16280 * vport counts during node discovery.
16284 lpfc_drain_txq(struct lpfc_hba
*phba
)
16286 LIST_HEAD(completions
);
16287 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
16288 struct lpfc_iocbq
*piocbq
= 0;
16289 unsigned long iflags
= 0;
16290 char *fail_msg
= NULL
;
16291 struct lpfc_sglq
*sglq
;
16292 union lpfc_wqe wqe
;
16295 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
16296 list_for_each_entry(piocbq
, &pring
->txq
, list
) {
16300 if (txq_cnt
> pring
->txq_max
)
16301 pring
->txq_max
= txq_cnt
;
16303 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
16305 while (!list_empty(&pring
->txq
)) {
16306 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
16308 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
16310 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
16311 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16312 "2823 txq empty and txq_cnt is %d\n ",
16316 sglq
= __lpfc_sli_get_sglq(phba
, piocbq
);
16318 __lpfc_sli_ringtx_put(phba
, pring
, piocbq
);
16319 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
16324 /* The xri and iocb resources secured,
16325 * attempt to issue request
16327 piocbq
->sli4_lxritag
= sglq
->sli4_lxritag
;
16328 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
16329 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
16330 fail_msg
= "to convert bpl to sgl";
16331 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
16332 fail_msg
= "to convert iocb to wqe";
16333 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
16334 fail_msg
= " - Wq is full";
16336 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
16339 /* Failed means we can't issue and need to cancel */
16340 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16341 "2822 IOCB failed %s iotag 0x%x "
16344 piocbq
->iotag
, piocbq
->sli4_xritag
);
16345 list_add_tail(&piocbq
->list
, &completions
);
16347 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
16350 /* Cancel all the IOCBs that cannot be issued */
16351 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
16352 IOERR_SLI_ABORTED
);