1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2016 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>
27 #include <linux/lockdep.h>
29 #include <scsi/scsi.h>
30 #include <scsi/scsi_cmnd.h>
31 #include <scsi/scsi_device.h>
32 #include <scsi/scsi_host.h>
33 #include <scsi/scsi_transport_fc.h>
34 #include <scsi/fc/fc_fs.h>
35 #include <linux/aer.h>
40 #include "lpfc_sli4.h"
42 #include "lpfc_disc.h"
43 #include "lpfc_scsi.h"
45 #include "lpfc_crtn.h"
46 #include "lpfc_logmsg.h"
47 #include "lpfc_compat.h"
48 #include "lpfc_debugfs.h"
49 #include "lpfc_vport.h"
51 /* There are only four IOCB completion types. */
52 typedef enum _lpfc_iocb_type
{
60 /* Provide function prototypes local to this module. */
61 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
63 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
64 uint8_t *, uint32_t *);
65 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
67 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
69 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*, struct lpfc_queue
*,
71 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*, struct list_head
*,
73 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*, struct lpfc_eqe
*,
75 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba
*phba
);
76 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba
*phba
);
79 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
85 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
86 * @q: The Work Queue to operate on.
87 * @wqe: The work Queue Entry to put on the Work queue.
89 * This routine will copy the contents of @wqe to the next available entry on
90 * the @q. This function will then ring the Work Queue Doorbell to signal the
91 * HBA to start processing the Work Queue Entry. This function returns 0 if
92 * successful. If no entries are available on @q then this function will return
94 * The caller is expected to hold the hbalock when calling this routine.
97 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
99 union lpfc_wqe
*temp_wqe
;
100 struct lpfc_register doorbell
;
104 /* sanity check on queue memory */
107 temp_wqe
= q
->qe
[q
->host_index
].wqe
;
109 /* If the host has not yet processed the next entry then we are done */
110 idx
= ((q
->host_index
+ 1) % q
->entry_count
);
111 if (idx
== q
->hba_index
) {
116 /* set consumption flag every once in a while */
117 if (!((q
->host_index
+ 1) % q
->entry_repost
))
118 bf_set(wqe_wqec
, &wqe
->generic
.wqe_com
, 1);
119 if (q
->phba
->sli3_options
& LPFC_SLI4_PHWQ_ENABLED
)
120 bf_set(wqe_wqid
, &wqe
->generic
.wqe_com
, q
->queue_id
);
121 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
123 /* Update the host index before invoking device */
124 host_index
= q
->host_index
;
130 if (q
->db_format
== LPFC_DB_LIST_FORMAT
) {
131 bf_set(lpfc_wq_db_list_fm_num_posted
, &doorbell
, 1);
132 bf_set(lpfc_wq_db_list_fm_index
, &doorbell
, host_index
);
133 bf_set(lpfc_wq_db_list_fm_id
, &doorbell
, q
->queue_id
);
134 } else if (q
->db_format
== LPFC_DB_RING_FORMAT
) {
135 bf_set(lpfc_wq_db_ring_fm_num_posted
, &doorbell
, 1);
136 bf_set(lpfc_wq_db_ring_fm_id
, &doorbell
, q
->queue_id
);
140 writel(doorbell
.word0
, q
->db_regaddr
);
146 * lpfc_sli4_wq_release - Updates internal hba index for WQ
147 * @q: The Work Queue to operate on.
148 * @index: The index to advance the hba index to.
150 * This routine will update the HBA index of a queue to reflect consumption of
151 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
152 * an entry the host calls this function to update the queue's internal
153 * pointers. This routine returns the number of entries that were consumed by
157 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
159 uint32_t released
= 0;
161 /* sanity check on queue memory */
165 if (q
->hba_index
== index
)
168 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
170 } while (q
->hba_index
!= index
);
175 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
176 * @q: The Mailbox Queue to operate on.
177 * @wqe: The Mailbox Queue Entry to put on the Work queue.
179 * This routine will copy the contents of @mqe to the next available entry on
180 * the @q. This function will then ring the Work Queue Doorbell to signal the
181 * HBA to start processing the Work Queue Entry. This function returns 0 if
182 * successful. If no entries are available on @q then this function will return
184 * The caller is expected to hold the hbalock when calling this routine.
187 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
189 struct lpfc_mqe
*temp_mqe
;
190 struct lpfc_register doorbell
;
192 /* sanity check on queue memory */
195 temp_mqe
= q
->qe
[q
->host_index
].mqe
;
197 /* If the host has not yet processed the next entry then we are done */
198 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
200 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
201 /* Save off the mailbox pointer for completion */
202 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
204 /* Update the host index before invoking device */
205 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
209 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
210 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
211 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
216 * lpfc_sli4_mq_release - Updates internal hba index for MQ
217 * @q: The Mailbox Queue to operate on.
219 * This routine will update the HBA index of a queue to reflect consumption of
220 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
221 * an entry the host calls this function to update the queue's internal
222 * pointers. This routine returns the number of entries that were consumed by
226 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
228 /* sanity check on queue memory */
232 /* Clear the mailbox pointer for completion */
233 q
->phba
->mbox
= NULL
;
234 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
239 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
240 * @q: The Event Queue to get the first valid EQE from
242 * This routine will get the first valid Event Queue Entry from @q, update
243 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
244 * the Queue (no more work to do), or the Queue is full of EQEs that have been
245 * processed, but not popped back to the HBA then this routine will return NULL.
247 static struct lpfc_eqe
*
248 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
250 struct lpfc_eqe
*eqe
;
253 /* sanity check on queue memory */
256 eqe
= q
->qe
[q
->hba_index
].eqe
;
258 /* If the next EQE is not valid then we are done */
259 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
261 /* If the host has not yet processed the next entry then we are done */
262 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
263 if (idx
== q
->host_index
)
269 * insert barrier for instruction interlock : data from the hardware
270 * must have the valid bit checked before it can be copied and acted
271 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
272 * instructions allowing action on content before valid bit checked,
273 * add barrier here as well. May not be needed as "content" is a
274 * single 32-bit entity here (vs multi word structure for cq's).
281 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
282 * @q: The Event Queue to disable interrupts
286 lpfc_sli4_eq_clr_intr(struct lpfc_queue
*q
)
288 struct lpfc_register doorbell
;
291 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
292 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
293 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
294 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
295 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
296 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
300 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
301 * @q: The Event Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
304 * This routine will mark all Event Queue Entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
312 * This function will return the number of EQEs that were popped.
315 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
317 uint32_t released
= 0;
318 struct lpfc_eqe
*temp_eqe
;
319 struct lpfc_register doorbell
;
321 /* sanity check on queue memory */
325 /* while there are valid entries */
326 while (q
->hba_index
!= q
->host_index
) {
327 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
328 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
330 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
332 if (unlikely(released
== 0 && !arm
))
335 /* ring doorbell for number popped */
338 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
339 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
341 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
342 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
343 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
344 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
345 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
346 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
347 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
348 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
349 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
354 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
355 * @q: The Completion Queue to get the first valid CQE from
357 * This routine will get the first valid Completion Queue Entry from @q, update
358 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
359 * the Queue (no more work to do), or the Queue is full of CQEs that have been
360 * processed, but not popped back to the HBA then this routine will return NULL.
362 static struct lpfc_cqe
*
363 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
365 struct lpfc_cqe
*cqe
;
368 /* sanity check on queue memory */
372 /* If the next CQE is not valid then we are done */
373 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
375 /* If the host has not yet processed the next entry then we are done */
376 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
377 if (idx
== q
->host_index
)
380 cqe
= q
->qe
[q
->hba_index
].cqe
;
384 * insert barrier for instruction interlock : data from the hardware
385 * must have the valid bit checked before it can be copied and acted
386 * upon. Speculative instructions were allowing a bcopy at the start
387 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
388 * after our return, to copy data before the valid bit check above
389 * was done. As such, some of the copied data was stale. The barrier
390 * ensures the check is before any data is copied.
397 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
398 * @q: The Completion Queue that the host has completed processing for.
399 * @arm: Indicates whether the host wants to arms this CQ.
401 * This routine will mark all Completion queue entries on @q, from the last
402 * known completed entry to the last entry that was processed, as completed
403 * by clearing the valid bit for each completion queue entry. Then it will
404 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
405 * The internal host index in the @q will be updated by this routine to indicate
406 * that the host has finished processing the entries. The @arm parameter
407 * indicates that the queue should be rearmed when ringing the doorbell.
409 * This function will return the number of CQEs that were released.
412 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
414 uint32_t released
= 0;
415 struct lpfc_cqe
*temp_qe
;
416 struct lpfc_register doorbell
;
418 /* sanity check on queue memory */
421 /* while there are valid entries */
422 while (q
->hba_index
!= q
->host_index
) {
423 temp_qe
= q
->qe
[q
->host_index
].cqe
;
424 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
426 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
428 if (unlikely(released
== 0 && !arm
))
431 /* ring doorbell for number popped */
434 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
435 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
436 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
437 bf_set(lpfc_eqcq_doorbell_cqid_hi
, &doorbell
,
438 (q
->queue_id
>> LPFC_CQID_HI_FIELD_SHIFT
));
439 bf_set(lpfc_eqcq_doorbell_cqid_lo
, &doorbell
, q
->queue_id
);
440 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
445 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
446 * @q: The Header Receive Queue to operate on.
447 * @wqe: The Receive Queue Entry to put on the Receive queue.
449 * This routine will copy the contents of @wqe to the next available entry on
450 * the @q. This function will then ring the Receive Queue Doorbell to signal the
451 * HBA to start processing the Receive Queue Entry. This function returns the
452 * index that the rqe was copied to if successful. If no entries are available
453 * on @q then this function will return -ENOMEM.
454 * The caller is expected to hold the hbalock when calling this routine.
457 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
458 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
460 struct lpfc_rqe
*temp_hrqe
;
461 struct lpfc_rqe
*temp_drqe
;
462 struct lpfc_register doorbell
;
465 /* sanity check on queue memory */
466 if (unlikely(!hq
) || unlikely(!dq
))
468 put_index
= hq
->host_index
;
469 temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
470 temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
472 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
474 if (hq
->host_index
!= dq
->host_index
)
476 /* If the host has not yet processed the next entry then we are done */
477 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
479 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
480 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
482 /* Update the host index to point to the next slot */
483 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
484 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
486 /* Ring The Header Receive Queue Doorbell */
487 if (!(hq
->host_index
% hq
->entry_repost
)) {
489 if (hq
->db_format
== LPFC_DB_RING_FORMAT
) {
490 bf_set(lpfc_rq_db_ring_fm_num_posted
, &doorbell
,
492 bf_set(lpfc_rq_db_ring_fm_id
, &doorbell
, hq
->queue_id
);
493 } else if (hq
->db_format
== LPFC_DB_LIST_FORMAT
) {
494 bf_set(lpfc_rq_db_list_fm_num_posted
, &doorbell
,
496 bf_set(lpfc_rq_db_list_fm_index
, &doorbell
,
498 bf_set(lpfc_rq_db_list_fm_id
, &doorbell
, hq
->queue_id
);
502 writel(doorbell
.word0
, hq
->db_regaddr
);
508 * lpfc_sli4_rq_release - Updates internal hba index for RQ
509 * @q: The Header Receive Queue to operate on.
511 * This routine will update the HBA index of a queue to reflect consumption of
512 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
513 * consumed an entry the host calls this function to update the queue's
514 * internal pointers. This routine returns the number of entries that were
515 * consumed by the HBA.
518 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
520 /* sanity check on queue memory */
521 if (unlikely(!hq
) || unlikely(!dq
))
524 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
526 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
527 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
532 * lpfc_cmd_iocb - Get next command iocb entry in the ring
533 * @phba: Pointer to HBA context object.
534 * @pring: Pointer to driver SLI ring object.
536 * This function returns pointer to next command iocb entry
537 * in the command ring. The caller must hold hbalock to prevent
538 * other threads consume the next command iocb.
539 * SLI-2/SLI-3 provide different sized iocbs.
541 static inline IOCB_t
*
542 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
544 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.cmdringaddr
) +
545 pring
->sli
.sli3
.cmdidx
* phba
->iocb_cmd_size
);
549 * lpfc_resp_iocb - Get next response iocb entry in the ring
550 * @phba: Pointer to HBA context object.
551 * @pring: Pointer to driver SLI ring object.
553 * This function returns pointer to next response iocb entry
554 * in the response ring. The caller must hold hbalock to make sure
555 * that no other thread consume the next response iocb.
556 * SLI-2/SLI-3 provide different sized iocbs.
558 static inline IOCB_t
*
559 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
561 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.rspringaddr
) +
562 pring
->sli
.sli3
.rspidx
* phba
->iocb_rsp_size
);
566 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
567 * @phba: Pointer to HBA context object.
569 * This function is called with hbalock held. This function
570 * allocates a new driver iocb object from the iocb pool. If the
571 * allocation is successful, it returns pointer to the newly
572 * allocated iocb object else it returns NULL.
575 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
577 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
578 struct lpfc_iocbq
* iocbq
= NULL
;
580 lockdep_assert_held(&phba
->hbalock
);
582 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
585 if (phba
->iocb_cnt
> phba
->iocb_max
)
586 phba
->iocb_max
= phba
->iocb_cnt
;
591 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
592 * @phba: Pointer to HBA context object.
593 * @xritag: XRI value.
595 * This function clears the sglq pointer from the array of acive
596 * sglq's. The xritag that is passed in is used to index into the
597 * array. Before the xritag can be used it needs to be adjusted
598 * by subtracting the xribase.
600 * Returns sglq ponter = success, NULL = Failure.
602 static struct lpfc_sglq
*
603 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
605 struct lpfc_sglq
*sglq
;
607 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
608 phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
] = NULL
;
613 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
614 * @phba: Pointer to HBA context object.
615 * @xritag: XRI value.
617 * This function returns the sglq pointer from the array of acive
618 * sglq's. The xritag that is passed in is used to index into the
619 * array. Before the xritag can be used it needs to be adjusted
620 * by subtracting the xribase.
622 * Returns sglq ponter = success, NULL = Failure.
625 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
627 struct lpfc_sglq
*sglq
;
629 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
634 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
635 * @phba: Pointer to HBA context object.
636 * @xritag: xri used in this exchange.
637 * @rrq: The RRQ to be cleared.
641 lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
643 struct lpfc_node_rrq
*rrq
)
645 struct lpfc_nodelist
*ndlp
= NULL
;
647 if ((rrq
->vport
) && NLP_CHK_NODE_ACT(rrq
->ndlp
))
648 ndlp
= lpfc_findnode_did(rrq
->vport
, rrq
->nlp_DID
);
650 /* The target DID could have been swapped (cable swap)
651 * we should use the ndlp from the findnode if it is
654 if ((!ndlp
) && rrq
->ndlp
)
660 if (test_and_clear_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
)) {
663 rrq
->rrq_stop_time
= 0;
666 mempool_free(rrq
, phba
->rrq_pool
);
670 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
671 * @phba: Pointer to HBA context object.
673 * This function is called with hbalock held. This function
674 * Checks if stop_time (ratov from setting rrq active) has
675 * been reached, if it has and the send_rrq flag is set then
676 * it will call lpfc_send_rrq. If the send_rrq flag is not set
677 * then it will just call the routine to clear the rrq and
678 * free the rrq resource.
679 * The timer is set to the next rrq that is going to expire before
680 * leaving the routine.
684 lpfc_handle_rrq_active(struct lpfc_hba
*phba
)
686 struct lpfc_node_rrq
*rrq
;
687 struct lpfc_node_rrq
*nextrrq
;
688 unsigned long next_time
;
689 unsigned long iflags
;
692 spin_lock_irqsave(&phba
->hbalock
, iflags
);
693 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
694 next_time
= jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
695 list_for_each_entry_safe(rrq
, nextrrq
,
696 &phba
->active_rrq_list
, list
) {
697 if (time_after(jiffies
, rrq
->rrq_stop_time
))
698 list_move(&rrq
->list
, &send_rrq
);
699 else if (time_before(rrq
->rrq_stop_time
, next_time
))
700 next_time
= rrq
->rrq_stop_time
;
702 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
703 if ((!list_empty(&phba
->active_rrq_list
)) &&
704 (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
705 mod_timer(&phba
->rrq_tmr
, next_time
);
706 list_for_each_entry_safe(rrq
, nextrrq
, &send_rrq
, list
) {
707 list_del(&rrq
->list
);
709 /* this call will free the rrq */
710 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
711 else if (lpfc_send_rrq(phba
, rrq
)) {
712 /* if we send the rrq then the completion handler
713 * will clear the bit in the xribitmap.
715 lpfc_clr_rrq_active(phba
, rrq
->xritag
,
722 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
723 * @vport: Pointer to vport context object.
724 * @xri: The xri used in the exchange.
725 * @did: The targets DID for this exchange.
727 * returns NULL = rrq not found in the phba->active_rrq_list.
728 * rrq = rrq for this xri and target.
730 struct lpfc_node_rrq
*
731 lpfc_get_active_rrq(struct lpfc_vport
*vport
, uint16_t xri
, uint32_t did
)
733 struct lpfc_hba
*phba
= vport
->phba
;
734 struct lpfc_node_rrq
*rrq
;
735 struct lpfc_node_rrq
*nextrrq
;
736 unsigned long iflags
;
738 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
740 spin_lock_irqsave(&phba
->hbalock
, iflags
);
741 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
742 if (rrq
->vport
== vport
&& rrq
->xritag
== xri
&&
743 rrq
->nlp_DID
== did
){
744 list_del(&rrq
->list
);
745 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
749 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
754 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
755 * @vport: Pointer to vport context object.
756 * @ndlp: Pointer to the lpfc_node_list structure.
757 * If ndlp is NULL Remove all active RRQs for this vport from the
758 * phba->active_rrq_list and clear the rrq.
759 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
762 lpfc_cleanup_vports_rrqs(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
765 struct lpfc_hba
*phba
= vport
->phba
;
766 struct lpfc_node_rrq
*rrq
;
767 struct lpfc_node_rrq
*nextrrq
;
768 unsigned long iflags
;
771 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
774 lpfc_sli4_vport_delete_els_xri_aborted(vport
);
775 lpfc_sli4_vport_delete_fcp_xri_aborted(vport
);
777 spin_lock_irqsave(&phba
->hbalock
, iflags
);
778 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
)
779 if ((rrq
->vport
== vport
) && (!ndlp
|| rrq
->ndlp
== ndlp
))
780 list_move(&rrq
->list
, &rrq_list
);
781 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
783 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
784 list_del(&rrq
->list
);
785 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
790 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
791 * @phba: Pointer to HBA context object.
792 * @ndlp: Targets nodelist pointer for this exchange.
793 * @xritag the xri in the bitmap to test.
795 * This function is called with hbalock held. This function
796 * returns 0 = rrq not active for this xri
797 * 1 = rrq is valid for this xri.
800 lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
803 lockdep_assert_held(&phba
->hbalock
);
806 if (!ndlp
->active_rrqs_xri_bitmap
)
808 if (test_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
))
815 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
816 * @phba: Pointer to HBA context object.
817 * @ndlp: nodelist pointer for this target.
818 * @xritag: xri used in this exchange.
819 * @rxid: Remote Exchange ID.
820 * @send_rrq: Flag used to determine if we should send rrq els cmd.
822 * This function takes the hbalock.
823 * The active bit is always set in the active rrq xri_bitmap even
824 * if there is no slot avaiable for the other rrq information.
826 * returns 0 rrq actived for this xri
827 * < 0 No memory or invalid ndlp.
830 lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
831 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
833 unsigned long iflags
;
834 struct lpfc_node_rrq
*rrq
;
840 if (!phba
->cfg_enable_rrq
)
843 spin_lock_irqsave(&phba
->hbalock
, iflags
);
844 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
845 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
850 * set the active bit even if there is no mem available.
852 if (NLP_CHK_FREE_REQ(ndlp
))
855 if (ndlp
->vport
&& (ndlp
->vport
->load_flag
& FC_UNLOADING
))
858 if (!ndlp
->active_rrqs_xri_bitmap
)
861 if (test_and_set_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
))
864 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
865 rrq
= mempool_alloc(phba
->rrq_pool
, GFP_KERNEL
);
867 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
868 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
869 " DID:0x%x Send:%d\n",
870 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
873 if (phba
->cfg_enable_rrq
== 1)
874 rrq
->send_rrq
= send_rrq
;
877 rrq
->xritag
= xritag
;
878 rrq
->rrq_stop_time
= jiffies
+
879 msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
881 rrq
->nlp_DID
= ndlp
->nlp_DID
;
882 rrq
->vport
= ndlp
->vport
;
884 spin_lock_irqsave(&phba
->hbalock
, iflags
);
885 empty
= list_empty(&phba
->active_rrq_list
);
886 list_add_tail(&rrq
->list
, &phba
->active_rrq_list
);
887 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
889 lpfc_worker_wake_up(phba
);
890 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
893 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
894 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
895 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
896 " DID:0x%x Send:%d\n",
897 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
902 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
903 * @phba: Pointer to HBA context object.
904 * @piocb: Pointer to the iocbq.
906 * This function is called with the ring lock held. This function
907 * gets a new driver sglq object from the sglq list. If the
908 * list is not empty then it is successful, it returns pointer to the newly
909 * allocated sglq object else it returns NULL.
911 static struct lpfc_sglq
*
912 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
)
914 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
915 struct lpfc_sglq
*sglq
= NULL
;
916 struct lpfc_sglq
*start_sglq
= NULL
;
917 struct lpfc_scsi_buf
*lpfc_cmd
;
918 struct lpfc_nodelist
*ndlp
;
921 lockdep_assert_held(&phba
->hbalock
);
923 if (piocbq
->iocb_flag
& LPFC_IO_FCP
) {
924 lpfc_cmd
= (struct lpfc_scsi_buf
*) piocbq
->context1
;
925 ndlp
= lpfc_cmd
->rdata
->pnode
;
926 } else if ((piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) &&
927 !(piocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
928 ndlp
= piocbq
->context_un
.ndlp
;
929 } else if (piocbq
->iocb_flag
& LPFC_IO_LIBDFC
) {
930 if (piocbq
->iocb_flag
& LPFC_IO_LOOPBACK
)
933 ndlp
= piocbq
->context_un
.ndlp
;
935 ndlp
= piocbq
->context1
;
938 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
943 if (lpfc_test_rrq_active(phba
, ndlp
, sglq
->sli4_lxritag
)) {
944 /* This xri has an rrq outstanding for this DID.
945 * put it back in the list and get another xri.
947 list_add_tail(&sglq
->list
, lpfc_sgl_list
);
949 list_remove_head(lpfc_sgl_list
, sglq
,
950 struct lpfc_sglq
, list
);
951 if (sglq
== start_sglq
) {
959 phba
->sli4_hba
.lpfc_sglq_active_list
[sglq
->sli4_lxritag
] = sglq
;
960 sglq
->state
= SGL_ALLOCATED
;
966 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
967 * @phba: Pointer to HBA context object.
969 * This function is called with no lock held. This function
970 * allocates a new driver iocb object from the iocb pool. If the
971 * allocation is successful, it returns pointer to the newly
972 * allocated iocb object else it returns NULL.
975 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
977 struct lpfc_iocbq
* iocbq
= NULL
;
978 unsigned long iflags
;
980 spin_lock_irqsave(&phba
->hbalock
, iflags
);
981 iocbq
= __lpfc_sli_get_iocbq(phba
);
982 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
987 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
988 * @phba: Pointer to HBA context object.
989 * @iocbq: Pointer to driver iocb object.
991 * This function is called with hbalock held to release driver
992 * iocb object to the iocb pool. The iotag in the iocb object
993 * does not change for each use of the iocb object. This function
994 * clears all other fields of the iocb object when it is freed.
995 * The sqlq structure that holds the xritag and phys and virtual
996 * mappings for the scatter gather list is retrieved from the
997 * active array of sglq. The get of the sglq pointer also clears
998 * the entry in the array. If the status of the IO indiactes that
999 * this IO was aborted then the sglq entry it put on the
1000 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1001 * IO has good status or fails for any other reason then the sglq
1002 * entry is added to the free list (lpfc_sgl_list).
1005 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1007 struct lpfc_sglq
*sglq
;
1008 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1009 unsigned long iflag
= 0;
1010 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1012 lockdep_assert_held(&phba
->hbalock
);
1014 if (iocbq
->sli4_xritag
== NO_XRI
)
1017 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_lxritag
);
1021 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
1022 (sglq
->state
!= SGL_XRI_ABORTED
)) {
1023 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
1025 list_add(&sglq
->list
,
1026 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
1027 spin_unlock_irqrestore(
1028 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
1030 spin_lock_irqsave(&pring
->ring_lock
, iflag
);
1031 sglq
->state
= SGL_FREED
;
1033 list_add_tail(&sglq
->list
,
1034 &phba
->sli4_hba
.lpfc_sgl_list
);
1035 spin_unlock_irqrestore(&pring
->ring_lock
, iflag
);
1037 /* Check if TXQ queue needs to be serviced */
1038 if (!list_empty(&pring
->txq
))
1039 lpfc_worker_wake_up(phba
);
1045 * Clean all volatile data fields, preserve iotag and node struct.
1047 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1048 iocbq
->sli4_lxritag
= NO_XRI
;
1049 iocbq
->sli4_xritag
= NO_XRI
;
1050 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1055 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1056 * @phba: Pointer to HBA context object.
1057 * @iocbq: Pointer to driver iocb object.
1059 * This function is called with hbalock held to release driver
1060 * iocb object to the iocb pool. The iotag in the iocb object
1061 * does not change for each use of the iocb object. This function
1062 * clears all other fields of the iocb object when it is freed.
1065 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1067 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1069 lockdep_assert_held(&phba
->hbalock
);
1072 * Clean all volatile data fields, preserve iotag and node struct.
1074 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1075 iocbq
->sli4_xritag
= NO_XRI
;
1076 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1080 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1081 * @phba: Pointer to HBA context object.
1082 * @iocbq: Pointer to driver iocb object.
1084 * This function is called with hbalock held to release driver
1085 * iocb object to the iocb pool. The iotag in the iocb object
1086 * does not change for each use of the iocb object. This function
1087 * clears all other fields of the iocb object when it is freed.
1090 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1092 lockdep_assert_held(&phba
->hbalock
);
1094 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
1099 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1100 * @phba: Pointer to HBA context object.
1101 * @iocbq: Pointer to driver iocb object.
1103 * This function is called with no lock held to release the iocb to
1107 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1109 unsigned long iflags
;
1112 * Clean all volatile data fields, preserve iotag and node struct.
1114 spin_lock_irqsave(&phba
->hbalock
, iflags
);
1115 __lpfc_sli_release_iocbq(phba
, iocbq
);
1116 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
1120 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1121 * @phba: Pointer to HBA context object.
1122 * @iocblist: List of IOCBs.
1123 * @ulpstatus: ULP status in IOCB command field.
1124 * @ulpWord4: ULP word-4 in IOCB command field.
1126 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1127 * on the list by invoking the complete callback function associated with the
1128 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1132 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
1133 uint32_t ulpstatus
, uint32_t ulpWord4
)
1135 struct lpfc_iocbq
*piocb
;
1137 while (!list_empty(iocblist
)) {
1138 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
1139 if (!piocb
->iocb_cmpl
)
1140 lpfc_sli_release_iocbq(phba
, piocb
);
1142 piocb
->iocb
.ulpStatus
= ulpstatus
;
1143 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
1144 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
1151 * lpfc_sli_iocb_cmd_type - Get the iocb type
1152 * @iocb_cmnd: iocb command code.
1154 * This function is called by ring event handler function to get the iocb type.
1155 * This function translates the iocb command to an iocb command type used to
1156 * decide the final disposition of each completed IOCB.
1157 * The function returns
1158 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1159 * LPFC_SOL_IOCB if it is a solicited iocb completion
1160 * LPFC_ABORT_IOCB if it is an abort iocb
1161 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1163 * The caller is not required to hold any lock.
1165 static lpfc_iocb_type
1166 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
1168 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
1170 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
1173 switch (iocb_cmnd
) {
1174 case CMD_XMIT_SEQUENCE_CR
:
1175 case CMD_XMIT_SEQUENCE_CX
:
1176 case CMD_XMIT_BCAST_CN
:
1177 case CMD_XMIT_BCAST_CX
:
1178 case CMD_ELS_REQUEST_CR
:
1179 case CMD_ELS_REQUEST_CX
:
1180 case CMD_CREATE_XRI_CR
:
1181 case CMD_CREATE_XRI_CX
:
1182 case CMD_GET_RPI_CN
:
1183 case CMD_XMIT_ELS_RSP_CX
:
1184 case CMD_GET_RPI_CR
:
1185 case CMD_FCP_IWRITE_CR
:
1186 case CMD_FCP_IWRITE_CX
:
1187 case CMD_FCP_IREAD_CR
:
1188 case CMD_FCP_IREAD_CX
:
1189 case CMD_FCP_ICMND_CR
:
1190 case CMD_FCP_ICMND_CX
:
1191 case CMD_FCP_TSEND_CX
:
1192 case CMD_FCP_TRSP_CX
:
1193 case CMD_FCP_TRECEIVE_CX
:
1194 case CMD_FCP_AUTO_TRSP_CX
:
1195 case CMD_ADAPTER_MSG
:
1196 case CMD_ADAPTER_DUMP
:
1197 case CMD_XMIT_SEQUENCE64_CR
:
1198 case CMD_XMIT_SEQUENCE64_CX
:
1199 case CMD_XMIT_BCAST64_CN
:
1200 case CMD_XMIT_BCAST64_CX
:
1201 case CMD_ELS_REQUEST64_CR
:
1202 case CMD_ELS_REQUEST64_CX
:
1203 case CMD_FCP_IWRITE64_CR
:
1204 case CMD_FCP_IWRITE64_CX
:
1205 case CMD_FCP_IREAD64_CR
:
1206 case CMD_FCP_IREAD64_CX
:
1207 case CMD_FCP_ICMND64_CR
:
1208 case CMD_FCP_ICMND64_CX
:
1209 case CMD_FCP_TSEND64_CX
:
1210 case CMD_FCP_TRSP64_CX
:
1211 case CMD_FCP_TRECEIVE64_CX
:
1212 case CMD_GEN_REQUEST64_CR
:
1213 case CMD_GEN_REQUEST64_CX
:
1214 case CMD_XMIT_ELS_RSP64_CX
:
1215 case DSSCMD_IWRITE64_CR
:
1216 case DSSCMD_IWRITE64_CX
:
1217 case DSSCMD_IREAD64_CR
:
1218 case DSSCMD_IREAD64_CX
:
1219 type
= LPFC_SOL_IOCB
;
1221 case CMD_ABORT_XRI_CN
:
1222 case CMD_ABORT_XRI_CX
:
1223 case CMD_CLOSE_XRI_CN
:
1224 case CMD_CLOSE_XRI_CX
:
1225 case CMD_XRI_ABORTED_CX
:
1226 case CMD_ABORT_MXRI64_CN
:
1227 case CMD_XMIT_BLS_RSP64_CX
:
1228 type
= LPFC_ABORT_IOCB
;
1230 case CMD_RCV_SEQUENCE_CX
:
1231 case CMD_RCV_ELS_REQ_CX
:
1232 case CMD_RCV_SEQUENCE64_CX
:
1233 case CMD_RCV_ELS_REQ64_CX
:
1234 case CMD_ASYNC_STATUS
:
1235 case CMD_IOCB_RCV_SEQ64_CX
:
1236 case CMD_IOCB_RCV_ELS64_CX
:
1237 case CMD_IOCB_RCV_CONT64_CX
:
1238 case CMD_IOCB_RET_XRI64_CX
:
1239 type
= LPFC_UNSOL_IOCB
;
1241 case CMD_IOCB_XMIT_MSEQ64_CR
:
1242 case CMD_IOCB_XMIT_MSEQ64_CX
:
1243 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
1244 case CMD_IOCB_RCV_ELS_LIST64_CX
:
1245 case CMD_IOCB_CLOSE_EXTENDED_CN
:
1246 case CMD_IOCB_ABORT_EXTENDED_CN
:
1247 case CMD_IOCB_RET_HBQE64_CN
:
1248 case CMD_IOCB_FCP_IBIDIR64_CR
:
1249 case CMD_IOCB_FCP_IBIDIR64_CX
:
1250 case CMD_IOCB_FCP_ITASKMGT64_CX
:
1251 case CMD_IOCB_LOGENTRY_CN
:
1252 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
1253 printk("%s - Unhandled SLI-3 Command x%x\n",
1254 __func__
, iocb_cmnd
);
1255 type
= LPFC_UNKNOWN_IOCB
;
1258 type
= LPFC_UNKNOWN_IOCB
;
1266 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1267 * @phba: Pointer to HBA context object.
1269 * This function is called from SLI initialization code
1270 * to configure every ring of the HBA's SLI interface. The
1271 * caller is not required to hold any lock. This function issues
1272 * a config_ring mailbox command for each ring.
1273 * This function returns zero if successful else returns a negative
1277 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
1279 struct lpfc_sli
*psli
= &phba
->sli
;
1284 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1288 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
1289 for (i
= 0; i
< psli
->num_rings
; i
++) {
1290 lpfc_config_ring(phba
, i
, pmb
);
1291 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
1292 if (rc
!= MBX_SUCCESS
) {
1293 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1294 "0446 Adapter failed to init (%d), "
1295 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1297 rc
, pmbox
->mbxCommand
,
1298 pmbox
->mbxStatus
, i
);
1299 phba
->link_state
= LPFC_HBA_ERROR
;
1304 mempool_free(pmb
, phba
->mbox_mem_pool
);
1309 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1310 * @phba: Pointer to HBA context object.
1311 * @pring: Pointer to driver SLI ring object.
1312 * @piocb: Pointer to the driver iocb object.
1314 * This function is called with hbalock held. The function adds the
1315 * new iocb to txcmplq of the given ring. This function always returns
1316 * 0. If this function is called for ELS ring, this function checks if
1317 * there is a vport associated with the ELS command. This function also
1318 * starts els_tmofunc timer if this is an ELS command.
1321 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1322 struct lpfc_iocbq
*piocb
)
1324 lockdep_assert_held(&phba
->hbalock
);
1326 BUG_ON(!piocb
|| !piocb
->vport
);
1328 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
1329 piocb
->iocb_flag
|= LPFC_IO_ON_TXCMPLQ
;
1331 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
1332 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
1333 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
) &&
1334 (!(piocb
->vport
->load_flag
& FC_UNLOADING
)))
1335 mod_timer(&piocb
->vport
->els_tmofunc
,
1337 msecs_to_jiffies(1000 * (phba
->fc_ratov
<< 1)));
1343 * lpfc_sli_ringtx_get - Get first element of the txq
1344 * @phba: Pointer to HBA context object.
1345 * @pring: Pointer to driver SLI ring object.
1347 * This function is called with hbalock held to get next
1348 * iocb in txq of the given ring. If there is any iocb in
1349 * the txq, the function returns first iocb in the list after
1350 * removing the iocb from the list, else it returns NULL.
1353 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1355 struct lpfc_iocbq
*cmd_iocb
;
1357 lockdep_assert_held(&phba
->hbalock
);
1359 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
1364 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1365 * @phba: Pointer to HBA context object.
1366 * @pring: Pointer to driver SLI ring object.
1368 * This function is called with hbalock held and the caller must post the
1369 * iocb without releasing the lock. If the caller releases the lock,
1370 * iocb slot returned by the function is not guaranteed to be available.
1371 * The function returns pointer to the next available iocb slot if there
1372 * is available slot in the ring, else it returns NULL.
1373 * If the get index of the ring is ahead of the put index, the function
1374 * will post an error attention event to the worker thread to take the
1375 * HBA to offline state.
1378 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1380 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
1381 uint32_t max_cmd_idx
= pring
->sli
.sli3
.numCiocb
;
1383 lockdep_assert_held(&phba
->hbalock
);
1385 if ((pring
->sli
.sli3
.next_cmdidx
== pring
->sli
.sli3
.cmdidx
) &&
1386 (++pring
->sli
.sli3
.next_cmdidx
>= max_cmd_idx
))
1387 pring
->sli
.sli3
.next_cmdidx
= 0;
1389 if (unlikely(pring
->sli
.sli3
.local_getidx
==
1390 pring
->sli
.sli3
.next_cmdidx
)) {
1392 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
1394 if (unlikely(pring
->sli
.sli3
.local_getidx
>= max_cmd_idx
)) {
1395 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
1396 "0315 Ring %d issue: portCmdGet %d "
1397 "is bigger than cmd ring %d\n",
1399 pring
->sli
.sli3
.local_getidx
,
1402 phba
->link_state
= LPFC_HBA_ERROR
;
1404 * All error attention handlers are posted to
1407 phba
->work_ha
|= HA_ERATT
;
1408 phba
->work_hs
= HS_FFER3
;
1410 lpfc_worker_wake_up(phba
);
1415 if (pring
->sli
.sli3
.local_getidx
== pring
->sli
.sli3
.next_cmdidx
)
1419 return lpfc_cmd_iocb(phba
, pring
);
1423 * lpfc_sli_next_iotag - Get an iotag for the iocb
1424 * @phba: Pointer to HBA context object.
1425 * @iocbq: Pointer to driver iocb object.
1427 * This function gets an iotag for the iocb. If there is no unused iotag and
1428 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1429 * array and assigns a new iotag.
1430 * The function returns the allocated iotag if successful, else returns zero.
1431 * Zero is not a valid iotag.
1432 * The caller is not required to hold any lock.
1435 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1437 struct lpfc_iocbq
**new_arr
;
1438 struct lpfc_iocbq
**old_arr
;
1440 struct lpfc_sli
*psli
= &phba
->sli
;
1443 spin_lock_irq(&phba
->hbalock
);
1444 iotag
= psli
->last_iotag
;
1445 if(++iotag
< psli
->iocbq_lookup_len
) {
1446 psli
->last_iotag
= iotag
;
1447 psli
->iocbq_lookup
[iotag
] = iocbq
;
1448 spin_unlock_irq(&phba
->hbalock
);
1449 iocbq
->iotag
= iotag
;
1451 } else if (psli
->iocbq_lookup_len
< (0xffff
1452 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1453 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1454 spin_unlock_irq(&phba
->hbalock
);
1455 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1458 spin_lock_irq(&phba
->hbalock
);
1459 old_arr
= psli
->iocbq_lookup
;
1460 if (new_len
<= psli
->iocbq_lookup_len
) {
1461 /* highly unprobable case */
1463 iotag
= psli
->last_iotag
;
1464 if(++iotag
< psli
->iocbq_lookup_len
) {
1465 psli
->last_iotag
= iotag
;
1466 psli
->iocbq_lookup
[iotag
] = iocbq
;
1467 spin_unlock_irq(&phba
->hbalock
);
1468 iocbq
->iotag
= iotag
;
1471 spin_unlock_irq(&phba
->hbalock
);
1474 if (psli
->iocbq_lookup
)
1475 memcpy(new_arr
, old_arr
,
1476 ((psli
->last_iotag
+ 1) *
1477 sizeof (struct lpfc_iocbq
*)));
1478 psli
->iocbq_lookup
= new_arr
;
1479 psli
->iocbq_lookup_len
= new_len
;
1480 psli
->last_iotag
= iotag
;
1481 psli
->iocbq_lookup
[iotag
] = iocbq
;
1482 spin_unlock_irq(&phba
->hbalock
);
1483 iocbq
->iotag
= iotag
;
1488 spin_unlock_irq(&phba
->hbalock
);
1490 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1491 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1498 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1499 * @phba: Pointer to HBA context object.
1500 * @pring: Pointer to driver SLI ring object.
1501 * @iocb: Pointer to iocb slot in the ring.
1502 * @nextiocb: Pointer to driver iocb object which need to be
1503 * posted to firmware.
1505 * This function is called with hbalock held to post a new iocb to
1506 * the firmware. This function copies the new iocb to ring iocb slot and
1507 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1508 * a completion call back for this iocb else the function will free the
1512 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1513 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1515 lockdep_assert_held(&phba
->hbalock
);
1519 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1522 if (pring
->ringno
== LPFC_ELS_RING
) {
1523 lpfc_debugfs_slow_ring_trc(phba
,
1524 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1525 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1526 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1527 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1531 * Issue iocb command to adapter
1533 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1535 pring
->stats
.iocb_cmd
++;
1538 * If there is no completion routine to call, we can release the
1539 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1540 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1542 if (nextiocb
->iocb_cmpl
)
1543 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1545 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1548 * Let the HBA know what IOCB slot will be the next one the
1549 * driver will put a command into.
1551 pring
->sli
.sli3
.cmdidx
= pring
->sli
.sli3
.next_cmdidx
;
1552 writel(pring
->sli
.sli3
.cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1556 * lpfc_sli_update_full_ring - Update the chip attention register
1557 * @phba: Pointer to HBA context object.
1558 * @pring: Pointer to driver SLI ring object.
1560 * The caller is not required to hold any lock for calling this function.
1561 * This function updates the chip attention bits for the ring to inform firmware
1562 * that there are pending work to be done for this ring and requests an
1563 * interrupt when there is space available in the ring. This function is
1564 * called when the driver is unable to post more iocbs to the ring due
1565 * to unavailability of space in the ring.
1568 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1570 int ringno
= pring
->ringno
;
1572 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1577 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1578 * The HBA will tell us when an IOCB entry is available.
1580 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1581 readl(phba
->CAregaddr
); /* flush */
1583 pring
->stats
.iocb_cmd_full
++;
1587 * lpfc_sli_update_ring - Update chip attention register
1588 * @phba: Pointer to HBA context object.
1589 * @pring: Pointer to driver SLI ring object.
1591 * This function updates the chip attention register bit for the
1592 * given ring to inform HBA that there is more work to be done
1593 * in this ring. The caller is not required to hold any lock.
1596 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1598 int ringno
= pring
->ringno
;
1601 * Tell the HBA that there is work to do in this ring.
1603 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1605 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1606 readl(phba
->CAregaddr
); /* flush */
1611 * lpfc_sli_resume_iocb - Process iocbs in the txq
1612 * @phba: Pointer to HBA context object.
1613 * @pring: Pointer to driver SLI ring object.
1615 * This function is called with hbalock held to post pending iocbs
1616 * in the txq to the firmware. This function is called when driver
1617 * detects space available in the ring.
1620 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1623 struct lpfc_iocbq
*nextiocb
;
1625 lockdep_assert_held(&phba
->hbalock
);
1629 * (a) there is anything on the txq to send
1631 * (c) link attention events can be processed (fcp ring only)
1632 * (d) IOCB processing is not blocked by the outstanding mbox command.
1635 if (lpfc_is_link_up(phba
) &&
1636 (!list_empty(&pring
->txq
)) &&
1637 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1638 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1640 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1641 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1642 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1645 lpfc_sli_update_ring(phba
, pring
);
1647 lpfc_sli_update_full_ring(phba
, pring
);
1654 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1655 * @phba: Pointer to HBA context object.
1656 * @hbqno: HBQ number.
1658 * This function is called with hbalock held to get the next
1659 * available slot for the given HBQ. If there is free slot
1660 * available for the HBQ it will return pointer to the next available
1661 * HBQ entry else it will return NULL.
1663 static struct lpfc_hbq_entry
*
1664 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1666 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1668 lockdep_assert_held(&phba
->hbalock
);
1670 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1671 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1672 hbqp
->next_hbqPutIdx
= 0;
1674 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1675 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1676 uint32_t getidx
= le32_to_cpu(raw_index
);
1678 hbqp
->local_hbqGetIdx
= getidx
;
1680 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1681 lpfc_printf_log(phba
, KERN_ERR
,
1682 LOG_SLI
| LOG_VPORT
,
1683 "1802 HBQ %d: local_hbqGetIdx "
1684 "%u is > than hbqp->entry_count %u\n",
1685 hbqno
, hbqp
->local_hbqGetIdx
,
1688 phba
->link_state
= LPFC_HBA_ERROR
;
1692 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1696 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1701 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1702 * @phba: Pointer to HBA context object.
1704 * This function is called with no lock held to free all the
1705 * hbq buffers while uninitializing the SLI interface. It also
1706 * frees the HBQ buffers returned by the firmware but not yet
1707 * processed by the upper layers.
1710 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1712 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1713 struct hbq_dmabuf
*hbq_buf
;
1714 unsigned long flags
;
1718 hbq_count
= lpfc_sli_hbq_count();
1719 /* Return all memory used by all HBQs */
1720 spin_lock_irqsave(&phba
->hbalock
, flags
);
1721 for (i
= 0; i
< hbq_count
; ++i
) {
1722 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1723 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1724 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1725 list_del(&hbq_buf
->dbuf
.list
);
1726 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1728 phba
->hbqs
[i
].buffer_count
= 0;
1730 /* Return all HBQ buffer that are in-fly */
1731 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1733 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1734 list_del(&hbq_buf
->dbuf
.list
);
1735 if (hbq_buf
->tag
== -1) {
1736 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1739 hbqno
= hbq_buf
->tag
>> 16;
1740 if (hbqno
>= LPFC_MAX_HBQS
)
1741 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1744 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1749 /* Mark the HBQs not in use */
1750 phba
->hbq_in_use
= 0;
1751 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1755 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1756 * @phba: Pointer to HBA context object.
1757 * @hbqno: HBQ number.
1758 * @hbq_buf: Pointer to HBQ buffer.
1760 * This function is called with the hbalock held to post a
1761 * hbq buffer to the firmware. If the function finds an empty
1762 * slot in the HBQ, it will post the buffer. The function will return
1763 * pointer to the hbq entry if it successfully post the buffer
1764 * else it will return NULL.
1767 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1768 struct hbq_dmabuf
*hbq_buf
)
1770 lockdep_assert_held(&phba
->hbalock
);
1771 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1775 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1776 * @phba: Pointer to HBA context object.
1777 * @hbqno: HBQ number.
1778 * @hbq_buf: Pointer to HBQ buffer.
1780 * This function is called with the hbalock held to post a hbq buffer to the
1781 * firmware. If the function finds an empty slot in the HBQ, it will post the
1782 * buffer and place it on the hbq_buffer_list. The function will return zero if
1783 * it successfully post the buffer else it will return an error.
1786 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1787 struct hbq_dmabuf
*hbq_buf
)
1789 struct lpfc_hbq_entry
*hbqe
;
1790 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1792 lockdep_assert_held(&phba
->hbalock
);
1793 /* Get next HBQ entry slot to use */
1794 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1796 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1798 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1799 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1800 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1801 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1802 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1803 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1805 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1806 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1808 readl(phba
->hbq_put
+ hbqno
);
1809 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1816 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1817 * @phba: Pointer to HBA context object.
1818 * @hbqno: HBQ number.
1819 * @hbq_buf: Pointer to HBQ buffer.
1821 * This function is called with the hbalock held to post an RQE to the SLI4
1822 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1823 * the hbq_buffer_list and return zero, otherwise it will return an error.
1826 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1827 struct hbq_dmabuf
*hbq_buf
)
1830 struct lpfc_rqe hrqe
;
1831 struct lpfc_rqe drqe
;
1833 lockdep_assert_held(&phba
->hbalock
);
1834 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1835 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1836 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1837 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1838 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1843 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1847 /* HBQ for ELS and CT traffic. */
1848 static struct lpfc_hbq_init lpfc_els_hbq
= {
1853 .ring_mask
= (1 << LPFC_ELS_RING
),
1859 /* HBQ for the extra ring if needed */
1860 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1865 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1872 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1878 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1879 * @phba: Pointer to HBA context object.
1880 * @hbqno: HBQ number.
1881 * @count: Number of HBQ buffers to be posted.
1883 * This function is called with no lock held to post more hbq buffers to the
1884 * given HBQ. The function returns the number of HBQ buffers successfully
1888 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1890 uint32_t i
, posted
= 0;
1891 unsigned long flags
;
1892 struct hbq_dmabuf
*hbq_buffer
;
1893 LIST_HEAD(hbq_buf_list
);
1894 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1897 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1898 lpfc_hbq_defs
[hbqno
]->entry_count
)
1899 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1900 phba
->hbqs
[hbqno
].buffer_count
;
1903 /* Allocate HBQ entries */
1904 for (i
= 0; i
< count
; i
++) {
1905 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1908 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1910 /* Check whether HBQ is still in use */
1911 spin_lock_irqsave(&phba
->hbalock
, flags
);
1912 if (!phba
->hbq_in_use
)
1914 while (!list_empty(&hbq_buf_list
)) {
1915 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1917 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1919 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1920 phba
->hbqs
[hbqno
].buffer_count
++;
1923 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1925 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1928 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1929 while (!list_empty(&hbq_buf_list
)) {
1930 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1932 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1938 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1939 * @phba: Pointer to HBA context object.
1942 * This function posts more buffers to the HBQ. This function
1943 * is called with no lock held. The function returns the number of HBQ entries
1944 * successfully allocated.
1947 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1949 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1952 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1953 lpfc_hbq_defs
[qno
]->add_count
);
1957 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1958 * @phba: Pointer to HBA context object.
1959 * @qno: HBQ queue number.
1961 * This function is called from SLI initialization code path with
1962 * no lock held to post initial HBQ buffers to firmware. The
1963 * function returns the number of HBQ entries successfully allocated.
1966 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1968 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1969 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1970 lpfc_hbq_defs
[qno
]->entry_count
);
1972 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1973 lpfc_hbq_defs
[qno
]->init_count
);
1977 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1978 * @phba: Pointer to HBA context object.
1979 * @hbqno: HBQ number.
1981 * This function removes the first hbq buffer on an hbq list and returns a
1982 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1984 static struct hbq_dmabuf
*
1985 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1987 struct lpfc_dmabuf
*d_buf
;
1989 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1992 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1996 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1997 * @phba: Pointer to HBA context object.
1998 * @tag: Tag of the hbq buffer.
2000 * This function searches for the hbq buffer associated with the given tag in
2001 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2002 * otherwise it returns NULL.
2004 static struct hbq_dmabuf
*
2005 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
2007 struct lpfc_dmabuf
*d_buf
;
2008 struct hbq_dmabuf
*hbq_buf
;
2012 if (hbqno
>= LPFC_MAX_HBQS
)
2015 spin_lock_irq(&phba
->hbalock
);
2016 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
2017 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
2018 if (hbq_buf
->tag
== tag
) {
2019 spin_unlock_irq(&phba
->hbalock
);
2023 spin_unlock_irq(&phba
->hbalock
);
2024 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
2025 "1803 Bad hbq tag. Data: x%x x%x\n",
2026 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
2031 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2032 * @phba: Pointer to HBA context object.
2033 * @hbq_buffer: Pointer to HBQ buffer.
2035 * This function is called with hbalock. This function gives back
2036 * the hbq buffer to firmware. If the HBQ does not have space to
2037 * post the buffer, it will free the buffer.
2040 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
2045 hbqno
= hbq_buffer
->tag
>> 16;
2046 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
2047 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
2052 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2053 * @mbxCommand: mailbox command code.
2055 * This function is called by the mailbox event handler function to verify
2056 * that the completed mailbox command is a legitimate mailbox command. If the
2057 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2058 * and the mailbox event handler will take the HBA offline.
2061 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
2065 switch (mbxCommand
) {
2069 case MBX_WRITE_VPARMS
:
2070 case MBX_RUN_BIU_DIAG
:
2073 case MBX_CONFIG_LINK
:
2074 case MBX_CONFIG_RING
:
2075 case MBX_RESET_RING
:
2076 case MBX_READ_CONFIG
:
2077 case MBX_READ_RCONFIG
:
2078 case MBX_READ_SPARM
:
2079 case MBX_READ_STATUS
:
2083 case MBX_READ_LNK_STAT
:
2085 case MBX_UNREG_LOGIN
:
2087 case MBX_DUMP_MEMORY
:
2088 case MBX_DUMP_CONTEXT
:
2091 case MBX_UPDATE_CFG
:
2093 case MBX_DEL_LD_ENTRY
:
2094 case MBX_RUN_PROGRAM
:
2096 case MBX_SET_VARIABLE
:
2097 case MBX_UNREG_D_ID
:
2098 case MBX_KILL_BOARD
:
2099 case MBX_CONFIG_FARP
:
2102 case MBX_RUN_BIU_DIAG64
:
2103 case MBX_CONFIG_PORT
:
2104 case MBX_READ_SPARM64
:
2105 case MBX_READ_RPI64
:
2106 case MBX_REG_LOGIN64
:
2107 case MBX_READ_TOPOLOGY
:
2110 case MBX_LOAD_EXP_ROM
:
2111 case MBX_ASYNCEVT_ENABLE
:
2115 case MBX_PORT_CAPABILITIES
:
2116 case MBX_PORT_IOV_CONTROL
:
2117 case MBX_SLI4_CONFIG
:
2118 case MBX_SLI4_REQ_FTRS
:
2120 case MBX_UNREG_FCFI
:
2125 case MBX_RESUME_RPI
:
2126 case MBX_READ_EVENT_LOG_STATUS
:
2127 case MBX_READ_EVENT_LOG
:
2128 case MBX_SECURITY_MGMT
:
2130 case MBX_ACCESS_VDATA
:
2141 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2142 * @phba: Pointer to HBA context object.
2143 * @pmboxq: Pointer to mailbox command.
2145 * This is completion handler function for mailbox commands issued from
2146 * lpfc_sli_issue_mbox_wait function. This function is called by the
2147 * mailbox event handler function with no lock held. This function
2148 * will wake up thread waiting on the wait queue pointed by context1
2152 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
2154 wait_queue_head_t
*pdone_q
;
2155 unsigned long drvr_flag
;
2158 * If pdone_q is empty, the driver thread gave up waiting and
2159 * continued running.
2161 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
2162 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
2163 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
2165 wake_up_interruptible(pdone_q
);
2166 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
2172 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2173 * @phba: Pointer to HBA context object.
2174 * @pmb: Pointer to mailbox object.
2176 * This function is the default mailbox completion handler. It
2177 * frees the memory resources associated with the completed mailbox
2178 * command. If the completed command is a REG_LOGIN mailbox command,
2179 * this function will issue a UREG_LOGIN to re-claim the RPI.
2182 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2184 struct lpfc_vport
*vport
= pmb
->vport
;
2185 struct lpfc_dmabuf
*mp
;
2186 struct lpfc_nodelist
*ndlp
;
2187 struct Scsi_Host
*shost
;
2191 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2194 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2199 * If a REG_LOGIN succeeded after node is destroyed or node
2200 * is in re-discovery driver need to cleanup the RPI.
2202 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2203 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
2204 !pmb
->u
.mb
.mbxStatus
) {
2205 rpi
= pmb
->u
.mb
.un
.varWords
[0];
2206 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
;
2207 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
2209 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2210 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2211 if (rc
!= MBX_NOT_FINISHED
)
2215 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
2216 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2217 !pmb
->u
.mb
.mbxStatus
) {
2218 shost
= lpfc_shost_from_vport(vport
);
2219 spin_lock_irq(shost
->host_lock
);
2220 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2221 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2222 spin_unlock_irq(shost
->host_lock
);
2225 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
2226 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
2228 pmb
->context2
= NULL
;
2231 /* Check security permission status on INIT_LINK mailbox command */
2232 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
2233 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
2234 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2235 "2860 SLI authentication is required "
2236 "for INIT_LINK but has not done yet\n");
2238 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
2239 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
2241 mempool_free(pmb
, phba
->mbox_mem_pool
);
2244 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2245 * @phba: Pointer to HBA context object.
2246 * @pmb: Pointer to mailbox object.
2248 * This function is the unreg rpi mailbox completion handler. It
2249 * frees the memory resources associated with the completed mailbox
2250 * command. An additional refrenece is put on the ndlp to prevent
2251 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2252 * the unreg mailbox command completes, this routine puts the
2257 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2259 struct lpfc_vport
*vport
= pmb
->vport
;
2260 struct lpfc_nodelist
*ndlp
;
2262 ndlp
= pmb
->context1
;
2263 if (pmb
->u
.mb
.mbxCommand
== MBX_UNREG_LOGIN
) {
2264 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
2265 (bf_get(lpfc_sli_intf_if_type
,
2266 &phba
->sli4_hba
.sli_intf
) ==
2267 LPFC_SLI_INTF_IF_TYPE_2
)) {
2269 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
2270 "0010 UNREG_LOGIN vpi:%x "
2271 "rpi:%x DID:%x map:%x %p\n",
2272 vport
->vpi
, ndlp
->nlp_rpi
,
2274 ndlp
->nlp_usg_map
, ndlp
);
2275 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
2281 mempool_free(pmb
, phba
->mbox_mem_pool
);
2285 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2286 * @phba: Pointer to HBA context object.
2288 * This function is called with no lock held. This function processes all
2289 * the completed mailbox commands and gives it to upper layers. The interrupt
2290 * service routine processes mailbox completion interrupt and adds completed
2291 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2292 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2293 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2294 * function returns the mailbox commands to the upper layer by calling the
2295 * completion handler function of each mailbox.
2298 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
2305 phba
->sli
.slistat
.mbox_event
++;
2307 /* Get all completed mailboxe buffers into the cmplq */
2308 spin_lock_irq(&phba
->hbalock
);
2309 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
2310 spin_unlock_irq(&phba
->hbalock
);
2312 /* Get a Mailbox buffer to setup mailbox commands for callback */
2314 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
2320 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
2322 lpfc_debugfs_disc_trc(pmb
->vport
,
2323 LPFC_DISC_TRC_MBOX_VPORT
,
2324 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2325 (uint32_t)pmbox
->mbxCommand
,
2326 pmbox
->un
.varWords
[0],
2327 pmbox
->un
.varWords
[1]);
2330 lpfc_debugfs_disc_trc(phba
->pport
,
2332 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2333 (uint32_t)pmbox
->mbxCommand
,
2334 pmbox
->un
.varWords
[0],
2335 pmbox
->un
.varWords
[1]);
2340 * It is a fatal error if unknown mbox command completion.
2342 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
2344 /* Unknown mailbox command compl */
2345 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2346 "(%d):0323 Unknown Mailbox command "
2347 "x%x (x%x/x%x) Cmpl\n",
2348 pmb
->vport
? pmb
->vport
->vpi
: 0,
2350 lpfc_sli_config_mbox_subsys_get(phba
,
2352 lpfc_sli_config_mbox_opcode_get(phba
,
2354 phba
->link_state
= LPFC_HBA_ERROR
;
2355 phba
->work_hs
= HS_FFER3
;
2356 lpfc_handle_eratt(phba
);
2360 if (pmbox
->mbxStatus
) {
2361 phba
->sli
.slistat
.mbox_stat_err
++;
2362 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
2363 /* Mbox cmd cmpl error - RETRYing */
2364 lpfc_printf_log(phba
, KERN_INFO
,
2366 "(%d):0305 Mbox cmd cmpl "
2367 "error - RETRYing Data: x%x "
2368 "(x%x/x%x) x%x x%x x%x\n",
2369 pmb
->vport
? pmb
->vport
->vpi
: 0,
2371 lpfc_sli_config_mbox_subsys_get(phba
,
2373 lpfc_sli_config_mbox_opcode_get(phba
,
2376 pmbox
->un
.varWords
[0],
2377 pmb
->vport
->port_state
);
2378 pmbox
->mbxStatus
= 0;
2379 pmbox
->mbxOwner
= OWN_HOST
;
2380 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2381 if (rc
!= MBX_NOT_FINISHED
)
2386 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2387 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
2388 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2389 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2391 pmb
->vport
? pmb
->vport
->vpi
: 0,
2393 lpfc_sli_config_mbox_subsys_get(phba
, pmb
),
2394 lpfc_sli_config_mbox_opcode_get(phba
, pmb
),
2396 *((uint32_t *) pmbox
),
2397 pmbox
->un
.varWords
[0],
2398 pmbox
->un
.varWords
[1],
2399 pmbox
->un
.varWords
[2],
2400 pmbox
->un
.varWords
[3],
2401 pmbox
->un
.varWords
[4],
2402 pmbox
->un
.varWords
[5],
2403 pmbox
->un
.varWords
[6],
2404 pmbox
->un
.varWords
[7],
2405 pmbox
->un
.varWords
[8],
2406 pmbox
->un
.varWords
[9],
2407 pmbox
->un
.varWords
[10]);
2410 pmb
->mbox_cmpl(phba
,pmb
);
2416 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2417 * @phba: Pointer to HBA context object.
2418 * @pring: Pointer to driver SLI ring object.
2421 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2422 * is set in the tag the buffer is posted for a particular exchange,
2423 * the function will return the buffer without replacing the buffer.
2424 * If the buffer is for unsolicited ELS or CT traffic, this function
2425 * returns the buffer and also posts another buffer to the firmware.
2427 static struct lpfc_dmabuf
*
2428 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
2429 struct lpfc_sli_ring
*pring
,
2432 struct hbq_dmabuf
*hbq_entry
;
2434 if (tag
& QUE_BUFTAG_BIT
)
2435 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
2436 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
2439 return &hbq_entry
->dbuf
;
2443 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2444 * @phba: Pointer to HBA context object.
2445 * @pring: Pointer to driver SLI ring object.
2446 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2447 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2448 * @fch_type: the type for the first frame of the sequence.
2450 * This function is called with no lock held. This function uses the r_ctl and
2451 * type of the received sequence to find the correct callback function to call
2452 * to process the sequence.
2455 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2456 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
2461 /* unSolicited Responses */
2462 if (pring
->prt
[0].profile
) {
2463 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
2464 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
2468 /* We must search, based on rctl / type
2469 for the right routine */
2470 for (i
= 0; i
< pring
->num_mask
; i
++) {
2471 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
2472 (pring
->prt
[i
].type
== fch_type
)) {
2473 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2474 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2475 (phba
, pring
, saveq
);
2483 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2484 * @phba: Pointer to HBA context object.
2485 * @pring: Pointer to driver SLI ring object.
2486 * @saveq: Pointer to the unsolicited iocb.
2488 * This function is called with no lock held by the ring event handler
2489 * when there is an unsolicited iocb posted to the response ring by the
2490 * firmware. This function gets the buffer associated with the iocbs
2491 * and calls the event handler for the ring. This function handles both
2492 * qring buffers and hbq buffers.
2493 * When the function returns 1 the caller can free the iocb object otherwise
2494 * upper layer functions will free the iocb objects.
2497 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2498 struct lpfc_iocbq
*saveq
)
2502 uint32_t Rctl
, Type
;
2503 struct lpfc_iocbq
*iocbq
;
2504 struct lpfc_dmabuf
*dmzbuf
;
2506 irsp
= &(saveq
->iocb
);
2508 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2509 if (pring
->lpfc_sli_rcv_async_status
)
2510 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2512 lpfc_printf_log(phba
,
2515 "0316 Ring %d handler: unexpected "
2516 "ASYNC_STATUS iocb received evt_code "
2519 irsp
->un
.asyncstat
.evt_code
);
2523 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2524 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2525 if (irsp
->ulpBdeCount
> 0) {
2526 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2527 irsp
->un
.ulpWord
[3]);
2528 lpfc_in_buf_free(phba
, dmzbuf
);
2531 if (irsp
->ulpBdeCount
> 1) {
2532 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2533 irsp
->unsli3
.sli3Words
[3]);
2534 lpfc_in_buf_free(phba
, dmzbuf
);
2537 if (irsp
->ulpBdeCount
> 2) {
2538 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2539 irsp
->unsli3
.sli3Words
[7]);
2540 lpfc_in_buf_free(phba
, dmzbuf
);
2546 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2547 if (irsp
->ulpBdeCount
!= 0) {
2548 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2549 irsp
->un
.ulpWord
[3]);
2550 if (!saveq
->context2
)
2551 lpfc_printf_log(phba
,
2554 "0341 Ring %d Cannot find buffer for "
2555 "an unsolicited iocb. tag 0x%x\n",
2557 irsp
->un
.ulpWord
[3]);
2559 if (irsp
->ulpBdeCount
== 2) {
2560 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2561 irsp
->unsli3
.sli3Words
[7]);
2562 if (!saveq
->context3
)
2563 lpfc_printf_log(phba
,
2566 "0342 Ring %d Cannot find buffer for an"
2567 " unsolicited iocb. tag 0x%x\n",
2569 irsp
->unsli3
.sli3Words
[7]);
2571 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2572 irsp
= &(iocbq
->iocb
);
2573 if (irsp
->ulpBdeCount
!= 0) {
2574 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2575 irsp
->un
.ulpWord
[3]);
2576 if (!iocbq
->context2
)
2577 lpfc_printf_log(phba
,
2580 "0343 Ring %d Cannot find "
2581 "buffer for an unsolicited iocb"
2582 ". tag 0x%x\n", pring
->ringno
,
2583 irsp
->un
.ulpWord
[3]);
2585 if (irsp
->ulpBdeCount
== 2) {
2586 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2587 irsp
->unsli3
.sli3Words
[7]);
2588 if (!iocbq
->context3
)
2589 lpfc_printf_log(phba
,
2592 "0344 Ring %d Cannot find "
2593 "buffer for an unsolicited "
2596 irsp
->unsli3
.sli3Words
[7]);
2600 if (irsp
->ulpBdeCount
!= 0 &&
2601 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2602 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2605 /* search continue save q for same XRI */
2606 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2607 if (iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
==
2608 saveq
->iocb
.unsli3
.rcvsli3
.ox_id
) {
2609 list_add_tail(&saveq
->list
, &iocbq
->list
);
2615 list_add_tail(&saveq
->clist
,
2616 &pring
->iocb_continue_saveq
);
2617 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2618 list_del_init(&iocbq
->clist
);
2620 irsp
= &(saveq
->iocb
);
2624 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2625 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2626 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2627 Rctl
= FC_RCTL_ELS_REQ
;
2630 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2631 Rctl
= w5p
->hcsw
.Rctl
;
2632 Type
= w5p
->hcsw
.Type
;
2634 /* Firmware Workaround */
2635 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2636 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2637 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2638 Rctl
= FC_RCTL_ELS_REQ
;
2640 w5p
->hcsw
.Rctl
= Rctl
;
2641 w5p
->hcsw
.Type
= Type
;
2645 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2646 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2647 "0313 Ring %d handler: unexpected Rctl x%x "
2648 "Type x%x received\n",
2649 pring
->ringno
, Rctl
, Type
);
2655 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2656 * @phba: Pointer to HBA context object.
2657 * @pring: Pointer to driver SLI ring object.
2658 * @prspiocb: Pointer to response iocb object.
2660 * This function looks up the iocb_lookup table to get the command iocb
2661 * corresponding to the given response iocb using the iotag of the
2662 * response iocb. This function is called with the hbalock held.
2663 * This function returns the command iocb object if it finds the command
2664 * iocb else returns NULL.
2666 static struct lpfc_iocbq
*
2667 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2668 struct lpfc_sli_ring
*pring
,
2669 struct lpfc_iocbq
*prspiocb
)
2671 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2673 lockdep_assert_held(&phba
->hbalock
);
2675 iotag
= prspiocb
->iocb
.ulpIoTag
;
2677 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2678 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2679 list_del_init(&cmd_iocb
->list
);
2680 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2681 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2686 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2687 "0317 iotag x%x is out off "
2688 "range: max iotag x%x wd0 x%x\n",
2689 iotag
, phba
->sli
.last_iotag
,
2690 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2695 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2696 * @phba: Pointer to HBA context object.
2697 * @pring: Pointer to driver SLI ring object.
2700 * This function looks up the iocb_lookup table to get the command iocb
2701 * corresponding to the given iotag. This function is called with the
2703 * This function returns the command iocb object if it finds the command
2704 * iocb else returns NULL.
2706 static struct lpfc_iocbq
*
2707 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2708 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2710 struct lpfc_iocbq
*cmd_iocb
;
2712 lockdep_assert_held(&phba
->hbalock
);
2713 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2714 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2715 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2716 /* remove from txcmpl queue list */
2717 list_del_init(&cmd_iocb
->list
);
2718 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2722 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2723 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2724 iotag
, phba
->sli
.last_iotag
);
2729 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2730 * @phba: Pointer to HBA context object.
2731 * @pring: Pointer to driver SLI ring object.
2732 * @saveq: Pointer to the response iocb to be processed.
2734 * This function is called by the ring event handler for non-fcp
2735 * rings when there is a new response iocb in the response ring.
2736 * The caller is not required to hold any locks. This function
2737 * gets the command iocb associated with the response iocb and
2738 * calls the completion handler for the command iocb. If there
2739 * is no completion handler, the function will free the resources
2740 * associated with command iocb. If the response iocb is for
2741 * an already aborted command iocb, the status of the completion
2742 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2743 * This function always returns 1.
2746 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2747 struct lpfc_iocbq
*saveq
)
2749 struct lpfc_iocbq
*cmdiocbp
;
2751 unsigned long iflag
;
2753 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2754 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2755 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2756 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2759 if (cmdiocbp
->iocb_cmpl
) {
2761 * If an ELS command failed send an event to mgmt
2764 if (saveq
->iocb
.ulpStatus
&&
2765 (pring
->ringno
== LPFC_ELS_RING
) &&
2766 (cmdiocbp
->iocb
.ulpCommand
==
2767 CMD_ELS_REQUEST64_CR
))
2768 lpfc_send_els_failure_event(phba
,
2772 * Post all ELS completions to the worker thread.
2773 * All other are passed to the completion callback.
2775 if (pring
->ringno
== LPFC_ELS_RING
) {
2776 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2777 (cmdiocbp
->iocb_flag
&
2778 LPFC_DRIVER_ABORTED
)) {
2779 spin_lock_irqsave(&phba
->hbalock
,
2781 cmdiocbp
->iocb_flag
&=
2782 ~LPFC_DRIVER_ABORTED
;
2783 spin_unlock_irqrestore(&phba
->hbalock
,
2785 saveq
->iocb
.ulpStatus
=
2786 IOSTAT_LOCAL_REJECT
;
2787 saveq
->iocb
.un
.ulpWord
[4] =
2790 /* Firmware could still be in progress
2791 * of DMAing payload, so don't free data
2792 * buffer till after a hbeat.
2794 spin_lock_irqsave(&phba
->hbalock
,
2796 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2797 spin_unlock_irqrestore(&phba
->hbalock
,
2800 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2801 if (saveq
->iocb_flag
&
2802 LPFC_EXCHANGE_BUSY
) {
2803 /* Set cmdiocb flag for the
2804 * exchange busy so sgl (xri)
2805 * will not be released until
2806 * the abort xri is received
2810 &phba
->hbalock
, iflag
);
2811 cmdiocbp
->iocb_flag
|=
2813 spin_unlock_irqrestore(
2814 &phba
->hbalock
, iflag
);
2816 if (cmdiocbp
->iocb_flag
&
2817 LPFC_DRIVER_ABORTED
) {
2819 * Clear LPFC_DRIVER_ABORTED
2820 * bit in case it was driver
2824 &phba
->hbalock
, iflag
);
2825 cmdiocbp
->iocb_flag
&=
2826 ~LPFC_DRIVER_ABORTED
;
2827 spin_unlock_irqrestore(
2828 &phba
->hbalock
, iflag
);
2829 cmdiocbp
->iocb
.ulpStatus
=
2830 IOSTAT_LOCAL_REJECT
;
2831 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2832 IOERR_ABORT_REQUESTED
;
2834 * For SLI4, irsiocb contains
2835 * NO_XRI in sli_xritag, it
2836 * shall not affect releasing
2837 * sgl (xri) process.
2839 saveq
->iocb
.ulpStatus
=
2840 IOSTAT_LOCAL_REJECT
;
2841 saveq
->iocb
.un
.ulpWord
[4] =
2844 &phba
->hbalock
, iflag
);
2846 LPFC_DELAY_MEM_FREE
;
2847 spin_unlock_irqrestore(
2848 &phba
->hbalock
, iflag
);
2852 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2854 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2857 * Unknown initiating command based on the response iotag.
2858 * This could be the case on the ELS ring because of
2861 if (pring
->ringno
!= LPFC_ELS_RING
) {
2863 * Ring <ringno> handler: unexpected completion IoTag
2866 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2867 "0322 Ring %d handler: "
2868 "unexpected completion IoTag x%x "
2869 "Data: x%x x%x x%x x%x\n",
2871 saveq
->iocb
.ulpIoTag
,
2872 saveq
->iocb
.ulpStatus
,
2873 saveq
->iocb
.un
.ulpWord
[4],
2874 saveq
->iocb
.ulpCommand
,
2875 saveq
->iocb
.ulpContext
);
2883 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2884 * @phba: Pointer to HBA context object.
2885 * @pring: Pointer to driver SLI ring object.
2887 * This function is called from the iocb ring event handlers when
2888 * put pointer is ahead of the get pointer for a ring. This function signal
2889 * an error attention condition to the worker thread and the worker
2890 * thread will transition the HBA to offline state.
2893 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2895 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2897 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2898 * rsp ring <portRspMax>
2900 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2901 "0312 Ring %d handler: portRspPut %d "
2902 "is bigger than rsp ring %d\n",
2903 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2904 pring
->sli
.sli3
.numRiocb
);
2906 phba
->link_state
= LPFC_HBA_ERROR
;
2909 * All error attention handlers are posted to
2912 phba
->work_ha
|= HA_ERATT
;
2913 phba
->work_hs
= HS_FFER3
;
2915 lpfc_worker_wake_up(phba
);
2921 * lpfc_poll_eratt - Error attention polling timer timeout handler
2922 * @ptr: Pointer to address of HBA context object.
2924 * This function is invoked by the Error Attention polling timer when the
2925 * timer times out. It will check the SLI Error Attention register for
2926 * possible attention events. If so, it will post an Error Attention event
2927 * and wake up worker thread to process it. Otherwise, it will set up the
2928 * Error Attention polling timer for the next poll.
2930 void lpfc_poll_eratt(unsigned long ptr
)
2932 struct lpfc_hba
*phba
;
2934 uint64_t sli_intr
, cnt
;
2936 phba
= (struct lpfc_hba
*)ptr
;
2938 /* Here we will also keep track of interrupts per sec of the hba */
2939 sli_intr
= phba
->sli
.slistat
.sli_intr
;
2941 if (phba
->sli
.slistat
.sli_prev_intr
> sli_intr
)
2942 cnt
= (((uint64_t)(-1) - phba
->sli
.slistat
.sli_prev_intr
) +
2945 cnt
= (sli_intr
- phba
->sli
.slistat
.sli_prev_intr
);
2947 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
2948 do_div(cnt
, phba
->eratt_poll_interval
);
2949 phba
->sli
.slistat
.sli_ips
= cnt
;
2951 phba
->sli
.slistat
.sli_prev_intr
= sli_intr
;
2953 /* Check chip HA register for error event */
2954 eratt
= lpfc_sli_check_eratt(phba
);
2957 /* Tell the worker thread there is work to do */
2958 lpfc_worker_wake_up(phba
);
2960 /* Restart the timer for next eratt poll */
2961 mod_timer(&phba
->eratt_poll
,
2963 msecs_to_jiffies(1000 * phba
->eratt_poll_interval
));
2969 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2970 * @phba: Pointer to HBA context object.
2971 * @pring: Pointer to driver SLI ring object.
2972 * @mask: Host attention register mask for this ring.
2974 * This function is called from the interrupt context when there is a ring
2975 * event for the fcp ring. The caller does not hold any lock.
2976 * The function processes each response iocb in the response ring until it
2977 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2978 * LE bit set. The function will call the completion handler of the command iocb
2979 * if the response iocb indicates a completion for a command iocb or it is
2980 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2981 * function if this is an unsolicited iocb.
2982 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2983 * to check it explicitly.
2986 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2987 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2989 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2990 IOCB_t
*irsp
= NULL
;
2991 IOCB_t
*entry
= NULL
;
2992 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2993 struct lpfc_iocbq rspiocbq
;
2995 uint32_t portRspPut
, portRspMax
;
2997 lpfc_iocb_type type
;
2998 unsigned long iflag
;
2999 uint32_t rsp_cmpl
= 0;
3001 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3002 pring
->stats
.iocb_event
++;
3005 * The next available response entry should never exceed the maximum
3006 * entries. If it does, treat it as an adapter hardware error.
3008 portRspMax
= pring
->sli
.sli3
.numRiocb
;
3009 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3010 if (unlikely(portRspPut
>= portRspMax
)) {
3011 lpfc_sli_rsp_pointers_error(phba
, pring
);
3012 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3015 if (phba
->fcp_ring_in_use
) {
3016 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3019 phba
->fcp_ring_in_use
= 1;
3022 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
3024 * Fetch an entry off the ring and copy it into a local data
3025 * structure. The copy involves a byte-swap since the
3026 * network byte order and pci byte orders are different.
3028 entry
= lpfc_resp_iocb(phba
, pring
);
3029 phba
->last_completion_time
= jiffies
;
3031 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
3032 pring
->sli
.sli3
.rspidx
= 0;
3034 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
3035 (uint32_t *) &rspiocbq
.iocb
,
3036 phba
->iocb_rsp_size
);
3037 INIT_LIST_HEAD(&(rspiocbq
.list
));
3038 irsp
= &rspiocbq
.iocb
;
3040 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
3041 pring
->stats
.iocb_rsp
++;
3044 if (unlikely(irsp
->ulpStatus
)) {
3046 * If resource errors reported from HBA, reduce
3047 * queuedepths of the SCSI device.
3049 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3050 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
3051 IOERR_NO_RESOURCES
)) {
3052 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3053 phba
->lpfc_rampdown_queue_depth(phba
);
3054 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3057 /* Rsp ring <ringno> error: IOCB */
3058 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3059 "0336 Rsp Ring %d error: IOCB Data: "
3060 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3062 irsp
->un
.ulpWord
[0],
3063 irsp
->un
.ulpWord
[1],
3064 irsp
->un
.ulpWord
[2],
3065 irsp
->un
.ulpWord
[3],
3066 irsp
->un
.ulpWord
[4],
3067 irsp
->un
.ulpWord
[5],
3068 *(uint32_t *)&irsp
->un1
,
3069 *((uint32_t *)&irsp
->un1
+ 1));
3073 case LPFC_ABORT_IOCB
:
3076 * Idle exchange closed via ABTS from port. No iocb
3077 * resources need to be recovered.
3079 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
3080 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3081 "0333 IOCB cmd 0x%x"
3082 " processed. Skipping"
3088 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
3090 if (unlikely(!cmdiocbq
))
3092 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
3093 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
3094 if (cmdiocbq
->iocb_cmpl
) {
3095 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3096 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
3098 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3101 case LPFC_UNSOL_IOCB
:
3102 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3103 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
3104 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3107 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3108 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3109 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3110 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
3112 dev_warn(&((phba
->pcidev
)->dev
),
3114 phba
->brd_no
, adaptermsg
);
3116 /* Unknown IOCB command */
3117 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3118 "0334 Unknown IOCB command "
3119 "Data: x%x, x%x x%x x%x x%x\n",
3120 type
, irsp
->ulpCommand
,
3129 * The response IOCB has been processed. Update the ring
3130 * pointer in SLIM. If the port response put pointer has not
3131 * been updated, sync the pgp->rspPutInx and fetch the new port
3132 * response put pointer.
3134 writel(pring
->sli
.sli3
.rspidx
,
3135 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3137 if (pring
->sli
.sli3
.rspidx
== portRspPut
)
3138 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3141 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
3142 pring
->stats
.iocb_rsp_full
++;
3143 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3144 writel(status
, phba
->CAregaddr
);
3145 readl(phba
->CAregaddr
);
3147 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3148 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3149 pring
->stats
.iocb_cmd_empty
++;
3151 /* Force update of the local copy of cmdGetInx */
3152 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3153 lpfc_sli_resume_iocb(phba
, pring
);
3155 if ((pring
->lpfc_sli_cmd_available
))
3156 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3160 phba
->fcp_ring_in_use
= 0;
3161 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3166 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3167 * @phba: Pointer to HBA context object.
3168 * @pring: Pointer to driver SLI ring object.
3169 * @rspiocbp: Pointer to driver response IOCB object.
3171 * This function is called from the worker thread when there is a slow-path
3172 * response IOCB to process. This function chains all the response iocbs until
3173 * seeing the iocb with the LE bit set. The function will call
3174 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3175 * completion of a command iocb. The function will call the
3176 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3177 * The function frees the resources or calls the completion handler if this
3178 * iocb is an abort completion. The function returns NULL when the response
3179 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3180 * this function shall chain the iocb on to the iocb_continueq and return the
3181 * response iocb passed in.
3183 static struct lpfc_iocbq
*
3184 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
3185 struct lpfc_iocbq
*rspiocbp
)
3187 struct lpfc_iocbq
*saveq
;
3188 struct lpfc_iocbq
*cmdiocbp
;
3189 struct lpfc_iocbq
*next_iocb
;
3190 IOCB_t
*irsp
= NULL
;
3191 uint32_t free_saveq
;
3192 uint8_t iocb_cmd_type
;
3193 lpfc_iocb_type type
;
3194 unsigned long iflag
;
3197 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3198 /* First add the response iocb to the countinueq list */
3199 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
3200 pring
->iocb_continueq_cnt
++;
3202 /* Now, determine whether the list is completed for processing */
3203 irsp
= &rspiocbp
->iocb
;
3206 * By default, the driver expects to free all resources
3207 * associated with this iocb completion.
3210 saveq
= list_get_first(&pring
->iocb_continueq
,
3211 struct lpfc_iocbq
, list
);
3212 irsp
= &(saveq
->iocb
);
3213 list_del_init(&pring
->iocb_continueq
);
3214 pring
->iocb_continueq_cnt
= 0;
3216 pring
->stats
.iocb_rsp
++;
3219 * If resource errors reported from HBA, reduce
3220 * queuedepths of the SCSI device.
3222 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3223 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
3224 IOERR_NO_RESOURCES
)) {
3225 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3226 phba
->lpfc_rampdown_queue_depth(phba
);
3227 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3230 if (irsp
->ulpStatus
) {
3231 /* Rsp ring <ringno> error: IOCB */
3232 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3233 "0328 Rsp Ring %d error: "
3238 "x%x x%x x%x x%x\n",
3240 irsp
->un
.ulpWord
[0],
3241 irsp
->un
.ulpWord
[1],
3242 irsp
->un
.ulpWord
[2],
3243 irsp
->un
.ulpWord
[3],
3244 irsp
->un
.ulpWord
[4],
3245 irsp
->un
.ulpWord
[5],
3246 *(((uint32_t *) irsp
) + 6),
3247 *(((uint32_t *) irsp
) + 7),
3248 *(((uint32_t *) irsp
) + 8),
3249 *(((uint32_t *) irsp
) + 9),
3250 *(((uint32_t *) irsp
) + 10),
3251 *(((uint32_t *) irsp
) + 11),
3252 *(((uint32_t *) irsp
) + 12),
3253 *(((uint32_t *) irsp
) + 13),
3254 *(((uint32_t *) irsp
) + 14),
3255 *(((uint32_t *) irsp
) + 15));
3259 * Fetch the IOCB command type and call the correct completion
3260 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3261 * get freed back to the lpfc_iocb_list by the discovery
3264 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
3265 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
3268 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3269 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
3270 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3273 case LPFC_UNSOL_IOCB
:
3274 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3275 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
3276 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3281 case LPFC_ABORT_IOCB
:
3283 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
3284 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
3287 /* Call the specified completion routine */
3288 if (cmdiocbp
->iocb_cmpl
) {
3289 spin_unlock_irqrestore(&phba
->hbalock
,
3291 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
3293 spin_lock_irqsave(&phba
->hbalock
,
3296 __lpfc_sli_release_iocbq(phba
,
3301 case LPFC_UNKNOWN_IOCB
:
3302 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3303 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3304 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3305 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
3307 dev_warn(&((phba
->pcidev
)->dev
),
3309 phba
->brd_no
, adaptermsg
);
3311 /* Unknown IOCB command */
3312 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3313 "0335 Unknown IOCB "
3314 "command Data: x%x "
3325 list_for_each_entry_safe(rspiocbp
, next_iocb
,
3326 &saveq
->list
, list
) {
3327 list_del_init(&rspiocbp
->list
);
3328 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
3330 __lpfc_sli_release_iocbq(phba
, saveq
);
3334 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3339 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3340 * @phba: Pointer to HBA context object.
3341 * @pring: Pointer to driver SLI ring object.
3342 * @mask: Host attention register mask for this ring.
3344 * This routine wraps the actual slow_ring event process routine from the
3345 * API jump table function pointer from the lpfc_hba struct.
3348 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
3349 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3351 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
3355 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3356 * @phba: Pointer to HBA context object.
3357 * @pring: Pointer to driver SLI ring object.
3358 * @mask: Host attention register mask for this ring.
3360 * This function is called from the worker thread when there is a ring event
3361 * for non-fcp rings. The caller does not hold any lock. The function will
3362 * remove each response iocb in the response ring and calls the handle
3363 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3366 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
3367 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3369 struct lpfc_pgp
*pgp
;
3371 IOCB_t
*irsp
= NULL
;
3372 struct lpfc_iocbq
*rspiocbp
= NULL
;
3373 uint32_t portRspPut
, portRspMax
;
3374 unsigned long iflag
;
3377 pgp
= &phba
->port_gp
[pring
->ringno
];
3378 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3379 pring
->stats
.iocb_event
++;
3382 * The next available response entry should never exceed the maximum
3383 * entries. If it does, treat it as an adapter hardware error.
3385 portRspMax
= pring
->sli
.sli3
.numRiocb
;
3386 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3387 if (portRspPut
>= portRspMax
) {
3389 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3390 * rsp ring <portRspMax>
3392 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3393 "0303 Ring %d handler: portRspPut %d "
3394 "is bigger than rsp ring %d\n",
3395 pring
->ringno
, portRspPut
, portRspMax
);
3397 phba
->link_state
= LPFC_HBA_ERROR
;
3398 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3400 phba
->work_hs
= HS_FFER3
;
3401 lpfc_handle_eratt(phba
);
3407 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
3409 * Build a completion list and call the appropriate handler.
3410 * The process is to get the next available response iocb, get
3411 * a free iocb from the list, copy the response data into the
3412 * free iocb, insert to the continuation list, and update the
3413 * next response index to slim. This process makes response
3414 * iocb's in the ring available to DMA as fast as possible but
3415 * pays a penalty for a copy operation. Since the iocb is
3416 * only 32 bytes, this penalty is considered small relative to
3417 * the PCI reads for register values and a slim write. When
3418 * the ulpLe field is set, the entire Command has been
3421 entry
= lpfc_resp_iocb(phba
, pring
);
3423 phba
->last_completion_time
= jiffies
;
3424 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
3425 if (rspiocbp
== NULL
) {
3426 printk(KERN_ERR
"%s: out of buffers! Failing "
3427 "completion.\n", __func__
);
3431 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
3432 phba
->iocb_rsp_size
);
3433 irsp
= &rspiocbp
->iocb
;
3435 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
3436 pring
->sli
.sli3
.rspidx
= 0;
3438 if (pring
->ringno
== LPFC_ELS_RING
) {
3439 lpfc_debugfs_slow_ring_trc(phba
,
3440 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3441 *(((uint32_t *) irsp
) + 4),
3442 *(((uint32_t *) irsp
) + 6),
3443 *(((uint32_t *) irsp
) + 7));
3446 writel(pring
->sli
.sli3
.rspidx
,
3447 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3449 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3450 /* Handle the response IOCB */
3451 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
3452 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3455 * If the port response put pointer has not been updated, sync
3456 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3457 * response put pointer.
3459 if (pring
->sli
.sli3
.rspidx
== portRspPut
) {
3460 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3462 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3464 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
3465 /* At least one response entry has been freed */
3466 pring
->stats
.iocb_rsp_full
++;
3467 /* SET RxRE_RSP in Chip Att register */
3468 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3469 writel(status
, phba
->CAregaddr
);
3470 readl(phba
->CAregaddr
); /* flush */
3472 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3473 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3474 pring
->stats
.iocb_cmd_empty
++;
3476 /* Force update of the local copy of cmdGetInx */
3477 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3478 lpfc_sli_resume_iocb(phba
, pring
);
3480 if ((pring
->lpfc_sli_cmd_available
))
3481 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3485 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3490 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3491 * @phba: Pointer to HBA context object.
3492 * @pring: Pointer to driver SLI ring object.
3493 * @mask: Host attention register mask for this ring.
3495 * This function is called from the worker thread when there is a pending
3496 * ELS response iocb on the driver internal slow-path response iocb worker
3497 * queue. The caller does not hold any lock. The function will remove each
3498 * response iocb from the response worker queue and calls the handle
3499 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3502 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
3503 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3505 struct lpfc_iocbq
*irspiocbq
;
3506 struct hbq_dmabuf
*dmabuf
;
3507 struct lpfc_cq_event
*cq_event
;
3508 unsigned long iflag
;
3510 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3511 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
3512 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3513 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
3514 /* Get the response iocb from the head of work queue */
3515 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3516 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3517 cq_event
, struct lpfc_cq_event
, list
);
3518 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3520 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3521 case CQE_CODE_COMPL_WQE
:
3522 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3524 /* Translate ELS WCQE to response IOCBQ */
3525 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3528 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3531 case CQE_CODE_RECEIVE
:
3532 case CQE_CODE_RECEIVE_V1
:
3533 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3535 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3544 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3545 * @phba: Pointer to HBA context object.
3546 * @pring: Pointer to driver SLI ring object.
3548 * This function aborts all iocbs in the given ring and frees all the iocb
3549 * objects in txq. This function issues an abort iocb for all the iocb commands
3550 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3551 * the return of this function. The caller is not required to hold any locks.
3554 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3556 LIST_HEAD(completions
);
3557 struct lpfc_iocbq
*iocb
, *next_iocb
;
3559 if (pring
->ringno
== LPFC_ELS_RING
) {
3560 lpfc_fabric_abort_hba(phba
);
3563 /* Error everything on txq and txcmplq
3566 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3567 spin_lock_irq(&pring
->ring_lock
);
3568 list_splice_init(&pring
->txq
, &completions
);
3570 spin_unlock_irq(&pring
->ring_lock
);
3572 spin_lock_irq(&phba
->hbalock
);
3573 /* Next issue ABTS for everything on the txcmplq */
3574 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3575 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3576 spin_unlock_irq(&phba
->hbalock
);
3578 spin_lock_irq(&phba
->hbalock
);
3579 list_splice_init(&pring
->txq
, &completions
);
3582 /* Next issue ABTS for everything on the txcmplq */
3583 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3584 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3585 spin_unlock_irq(&phba
->hbalock
);
3588 /* Cancel all the IOCBs from the completions list */
3589 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3594 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3595 * @phba: Pointer to HBA context object.
3596 * @pring: Pointer to driver SLI ring object.
3598 * This function aborts all iocbs in FCP rings and frees all the iocb
3599 * objects in txq. This function issues an abort iocb for all the iocb commands
3600 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3601 * the return of this function. The caller is not required to hold any locks.
3604 lpfc_sli_abort_fcp_rings(struct lpfc_hba
*phba
)
3606 struct lpfc_sli
*psli
= &phba
->sli
;
3607 struct lpfc_sli_ring
*pring
;
3610 /* Look on all the FCP Rings for the iotag */
3611 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3612 for (i
= 0; i
< phba
->cfg_fcp_io_channel
; i
++) {
3613 pring
= &psli
->ring
[i
+ MAX_SLI3_CONFIGURED_RINGS
];
3614 lpfc_sli_abort_iocb_ring(phba
, pring
);
3617 pring
= &psli
->ring
[psli
->fcp_ring
];
3618 lpfc_sli_abort_iocb_ring(phba
, pring
);
3624 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3625 * @phba: Pointer to HBA context object.
3627 * This function flushes all iocbs in the fcp ring and frees all the iocb
3628 * objects in txq and txcmplq. This function will not issue abort iocbs
3629 * for all the iocb commands in txcmplq, they will just be returned with
3630 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3631 * slot has been permanently disabled.
3634 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3638 struct lpfc_sli
*psli
= &phba
->sli
;
3639 struct lpfc_sli_ring
*pring
;
3642 spin_lock_irq(&phba
->hbalock
);
3643 /* Indicate the I/O queues are flushed */
3644 phba
->hba_flag
|= HBA_FCP_IOQ_FLUSH
;
3645 spin_unlock_irq(&phba
->hbalock
);
3647 /* Look on all the FCP Rings for the iotag */
3648 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3649 for (i
= 0; i
< phba
->cfg_fcp_io_channel
; i
++) {
3650 pring
= &psli
->ring
[i
+ MAX_SLI3_CONFIGURED_RINGS
];
3652 spin_lock_irq(&pring
->ring_lock
);
3653 /* Retrieve everything on txq */
3654 list_splice_init(&pring
->txq
, &txq
);
3655 /* Retrieve everything on the txcmplq */
3656 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3658 pring
->txcmplq_cnt
= 0;
3659 spin_unlock_irq(&pring
->ring_lock
);
3662 lpfc_sli_cancel_iocbs(phba
, &txq
,
3663 IOSTAT_LOCAL_REJECT
,
3665 /* Flush the txcmpq */
3666 lpfc_sli_cancel_iocbs(phba
, &txcmplq
,
3667 IOSTAT_LOCAL_REJECT
,
3671 pring
= &psli
->ring
[psli
->fcp_ring
];
3673 spin_lock_irq(&phba
->hbalock
);
3674 /* Retrieve everything on txq */
3675 list_splice_init(&pring
->txq
, &txq
);
3676 /* Retrieve everything on the txcmplq */
3677 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3679 pring
->txcmplq_cnt
= 0;
3680 spin_unlock_irq(&phba
->hbalock
);
3683 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3685 /* Flush the txcmpq */
3686 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3692 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3693 * @phba: Pointer to HBA context object.
3694 * @mask: Bit mask to be checked.
3696 * This function reads the host status register and compares
3697 * with the provided bit mask to check if HBA completed
3698 * the restart. This function will wait in a loop for the
3699 * HBA to complete restart. If the HBA does not restart within
3700 * 15 iterations, the function will reset the HBA again. The
3701 * function returns 1 when HBA fail to restart otherwise returns
3705 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3711 /* Read the HBA Host Status Register */
3712 if (lpfc_readl(phba
->HSregaddr
, &status
))
3716 * Check status register every 100ms for 5 retries, then every
3717 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3718 * every 2.5 sec for 4.
3719 * Break our of the loop if errors occurred during init.
3721 while (((status
& mask
) != mask
) &&
3722 !(status
& HS_FFERM
) &&
3734 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3735 lpfc_sli_brdrestart(phba
);
3737 /* Read the HBA Host Status Register */
3738 if (lpfc_readl(phba
->HSregaddr
, &status
)) {
3744 /* Check to see if any errors occurred during init */
3745 if ((status
& HS_FFERM
) || (i
>= 20)) {
3746 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3747 "2751 Adapter failed to restart, "
3748 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3750 readl(phba
->MBslimaddr
+ 0xa8),
3751 readl(phba
->MBslimaddr
+ 0xac));
3752 phba
->link_state
= LPFC_HBA_ERROR
;
3760 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3761 * @phba: Pointer to HBA context object.
3762 * @mask: Bit mask to be checked.
3764 * This function checks the host status register to check if HBA is
3765 * ready. This function will wait in a loop for the HBA to be ready
3766 * If the HBA is not ready , the function will will reset the HBA PCI
3767 * function again. The function returns 1 when HBA fail to be ready
3768 * otherwise returns zero.
3771 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3776 /* Read the HBA Host Status Register */
3777 status
= lpfc_sli4_post_status_check(phba
);
3780 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3781 lpfc_sli_brdrestart(phba
);
3782 status
= lpfc_sli4_post_status_check(phba
);
3785 /* Check to see if any errors occurred during init */
3787 phba
->link_state
= LPFC_HBA_ERROR
;
3790 phba
->sli4_hba
.intr_enable
= 0;
3796 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3797 * @phba: Pointer to HBA context object.
3798 * @mask: Bit mask to be checked.
3800 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3801 * from the API jump table function pointer from the lpfc_hba struct.
3804 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3806 return phba
->lpfc_sli_brdready(phba
, mask
);
3809 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3812 * lpfc_reset_barrier - Make HBA ready for HBA reset
3813 * @phba: Pointer to HBA context object.
3815 * This function is called before resetting an HBA. This function is called
3816 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3818 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3820 uint32_t __iomem
*resp_buf
;
3821 uint32_t __iomem
*mbox_buf
;
3822 volatile uint32_t mbox
;
3823 uint32_t hc_copy
, ha_copy
, resp_data
;
3827 lockdep_assert_held(&phba
->hbalock
);
3829 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3830 if (hdrtype
!= 0x80 ||
3831 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3832 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3836 * Tell the other part of the chip to suspend temporarily all
3839 resp_buf
= phba
->MBslimaddr
;
3841 /* Disable the error attention */
3842 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
3844 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3845 readl(phba
->HCregaddr
); /* flush */
3846 phba
->link_flag
|= LS_IGNORE_ERATT
;
3848 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3850 if (ha_copy
& HA_ERATT
) {
3851 /* Clear Chip error bit */
3852 writel(HA_ERATT
, phba
->HAregaddr
);
3853 phba
->pport
->stopped
= 1;
3857 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3858 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3860 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3861 mbox_buf
= phba
->MBslimaddr
;
3862 writel(mbox
, mbox_buf
);
3864 for (i
= 0; i
< 50; i
++) {
3865 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3867 if (resp_data
!= ~(BARRIER_TEST_PATTERN
))
3873 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3875 if (resp_data
!= ~(BARRIER_TEST_PATTERN
)) {
3876 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3877 phba
->pport
->stopped
)
3883 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3885 for (i
= 0; i
< 500; i
++) {
3886 if (lpfc_readl(resp_buf
, &resp_data
))
3888 if (resp_data
!= mbox
)
3897 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3899 if (!(ha_copy
& HA_ERATT
))
3905 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3906 writel(HA_ERATT
, phba
->HAregaddr
);
3907 phba
->pport
->stopped
= 1;
3911 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3912 writel(hc_copy
, phba
->HCregaddr
);
3913 readl(phba
->HCregaddr
); /* flush */
3917 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3918 * @phba: Pointer to HBA context object.
3920 * This function issues a kill_board mailbox command and waits for
3921 * the error attention interrupt. This function is called for stopping
3922 * the firmware processing. The caller is not required to hold any
3923 * locks. This function calls lpfc_hba_down_post function to free
3924 * any pending commands after the kill. The function will return 1 when it
3925 * fails to kill the board else will return 0.
3928 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3930 struct lpfc_sli
*psli
;
3940 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3941 "0329 Kill HBA Data: x%x x%x\n",
3942 phba
->pport
->port_state
, psli
->sli_flag
);
3944 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3948 /* Disable the error attention */
3949 spin_lock_irq(&phba
->hbalock
);
3950 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
3951 spin_unlock_irq(&phba
->hbalock
);
3952 mempool_free(pmb
, phba
->mbox_mem_pool
);
3955 status
&= ~HC_ERINT_ENA
;
3956 writel(status
, phba
->HCregaddr
);
3957 readl(phba
->HCregaddr
); /* flush */
3958 phba
->link_flag
|= LS_IGNORE_ERATT
;
3959 spin_unlock_irq(&phba
->hbalock
);
3961 lpfc_kill_board(phba
, pmb
);
3962 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3963 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3965 if (retval
!= MBX_SUCCESS
) {
3966 if (retval
!= MBX_BUSY
)
3967 mempool_free(pmb
, phba
->mbox_mem_pool
);
3968 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3969 "2752 KILL_BOARD command failed retval %d\n",
3971 spin_lock_irq(&phba
->hbalock
);
3972 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3973 spin_unlock_irq(&phba
->hbalock
);
3977 spin_lock_irq(&phba
->hbalock
);
3978 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3979 spin_unlock_irq(&phba
->hbalock
);
3981 mempool_free(pmb
, phba
->mbox_mem_pool
);
3983 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3984 * attention every 100ms for 3 seconds. If we don't get ERATT after
3985 * 3 seconds we still set HBA_ERROR state because the status of the
3986 * board is now undefined.
3988 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3990 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3992 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3996 del_timer_sync(&psli
->mbox_tmo
);
3997 if (ha_copy
& HA_ERATT
) {
3998 writel(HA_ERATT
, phba
->HAregaddr
);
3999 phba
->pport
->stopped
= 1;
4001 spin_lock_irq(&phba
->hbalock
);
4002 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4003 psli
->mbox_active
= NULL
;
4004 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
4005 spin_unlock_irq(&phba
->hbalock
);
4007 lpfc_hba_down_post(phba
);
4008 phba
->link_state
= LPFC_HBA_ERROR
;
4010 return ha_copy
& HA_ERATT
? 0 : 1;
4014 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4015 * @phba: Pointer to HBA context object.
4017 * This function resets the HBA by writing HC_INITFF to the control
4018 * register. After the HBA resets, this function resets all the iocb ring
4019 * indices. This function disables PCI layer parity checking during
4021 * This function returns 0 always.
4022 * The caller is not required to hold any locks.
4025 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
4027 struct lpfc_sli
*psli
;
4028 struct lpfc_sli_ring
*pring
;
4035 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4036 "0325 Reset HBA Data: x%x x%x\n",
4037 phba
->pport
->port_state
, psli
->sli_flag
);
4039 /* perform board reset */
4040 phba
->fc_eventTag
= 0;
4041 phba
->link_events
= 0;
4042 phba
->pport
->fc_myDID
= 0;
4043 phba
->pport
->fc_prevDID
= 0;
4045 /* Turn off parity checking and serr during the physical reset */
4046 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
4047 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
4049 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
4051 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
4053 /* Now toggle INITFF bit in the Host Control Register */
4054 writel(HC_INITFF
, phba
->HCregaddr
);
4056 readl(phba
->HCregaddr
); /* flush */
4057 writel(0, phba
->HCregaddr
);
4058 readl(phba
->HCregaddr
); /* flush */
4060 /* Restore PCI cmd register */
4061 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
4063 /* Initialize relevant SLI info */
4064 for (i
= 0; i
< psli
->num_rings
; i
++) {
4065 pring
= &psli
->ring
[i
];
4067 pring
->sli
.sli3
.rspidx
= 0;
4068 pring
->sli
.sli3
.next_cmdidx
= 0;
4069 pring
->sli
.sli3
.local_getidx
= 0;
4070 pring
->sli
.sli3
.cmdidx
= 0;
4071 pring
->missbufcnt
= 0;
4074 phba
->link_state
= LPFC_WARM_START
;
4079 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4080 * @phba: Pointer to HBA context object.
4082 * This function resets a SLI4 HBA. This function disables PCI layer parity
4083 * checking during resets the device. The caller is not required to hold
4086 * This function returns 0 always.
4089 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
4091 struct lpfc_sli
*psli
= &phba
->sli
;
4096 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4097 "0295 Reset HBA Data: x%x x%x x%x\n",
4098 phba
->pport
->port_state
, psli
->sli_flag
,
4101 /* perform board reset */
4102 phba
->fc_eventTag
= 0;
4103 phba
->link_events
= 0;
4104 phba
->pport
->fc_myDID
= 0;
4105 phba
->pport
->fc_prevDID
= 0;
4107 spin_lock_irq(&phba
->hbalock
);
4108 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
4109 phba
->fcf
.fcf_flag
= 0;
4110 spin_unlock_irq(&phba
->hbalock
);
4112 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4113 if (phba
->hba_flag
& HBA_FW_DUMP_OP
) {
4114 phba
->hba_flag
&= ~HBA_FW_DUMP_OP
;
4118 /* Now physically reset the device */
4119 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4120 "0389 Performing PCI function reset!\n");
4122 /* Turn off parity checking and serr during the physical reset */
4123 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
4124 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, (cfg_value
&
4125 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
4127 /* Perform FCoE PCI function reset before freeing queue memory */
4128 rc
= lpfc_pci_function_reset(phba
);
4129 lpfc_sli4_queue_destroy(phba
);
4131 /* Restore PCI cmd register */
4132 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
4138 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4139 * @phba: Pointer to HBA context object.
4141 * This function is called in the SLI initialization code path to
4142 * restart the HBA. The caller is not required to hold any lock.
4143 * This function writes MBX_RESTART mailbox command to the SLIM and
4144 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4145 * function to free any pending commands. The function enables
4146 * POST only during the first initialization. The function returns zero.
4147 * The function does not guarantee completion of MBX_RESTART mailbox
4148 * command before the return of this function.
4151 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
4154 struct lpfc_sli
*psli
;
4155 volatile uint32_t word0
;
4156 void __iomem
*to_slim
;
4157 uint32_t hba_aer_enabled
;
4159 spin_lock_irq(&phba
->hbalock
);
4161 /* Take PCIe device Advanced Error Reporting (AER) state */
4162 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4167 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4168 "0337 Restart HBA Data: x%x x%x\n",
4169 phba
->pport
->port_state
, psli
->sli_flag
);
4172 mb
= (MAILBOX_t
*) &word0
;
4173 mb
->mbxCommand
= MBX_RESTART
;
4176 lpfc_reset_barrier(phba
);
4178 to_slim
= phba
->MBslimaddr
;
4179 writel(*(uint32_t *) mb
, to_slim
);
4180 readl(to_slim
); /* flush */
4182 /* Only skip post after fc_ffinit is completed */
4183 if (phba
->pport
->port_state
)
4184 word0
= 1; /* This is really setting up word1 */
4186 word0
= 0; /* This is really setting up word1 */
4187 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
4188 writel(*(uint32_t *) mb
, to_slim
);
4189 readl(to_slim
); /* flush */
4191 lpfc_sli_brdreset(phba
);
4192 phba
->pport
->stopped
= 0;
4193 phba
->link_state
= LPFC_INIT_START
;
4195 spin_unlock_irq(&phba
->hbalock
);
4197 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4198 psli
->stats_start
= get_seconds();
4200 /* Give the INITFF and Post time to settle. */
4203 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4204 if (hba_aer_enabled
)
4205 pci_disable_pcie_error_reporting(phba
->pcidev
);
4207 lpfc_hba_down_post(phba
);
4213 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4214 * @phba: Pointer to HBA context object.
4216 * This function is called in the SLI initialization code path to restart
4217 * a SLI4 HBA. The caller is not required to hold any lock.
4218 * At the end of the function, it calls lpfc_hba_down_post function to
4219 * free any pending commands.
4222 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
4224 struct lpfc_sli
*psli
= &phba
->sli
;
4225 uint32_t hba_aer_enabled
;
4229 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4230 "0296 Restart HBA Data: x%x x%x\n",
4231 phba
->pport
->port_state
, psli
->sli_flag
);
4233 /* Take PCIe device Advanced Error Reporting (AER) state */
4234 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4236 rc
= lpfc_sli4_brdreset(phba
);
4238 spin_lock_irq(&phba
->hbalock
);
4239 phba
->pport
->stopped
= 0;
4240 phba
->link_state
= LPFC_INIT_START
;
4242 spin_unlock_irq(&phba
->hbalock
);
4244 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4245 psli
->stats_start
= get_seconds();
4247 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4248 if (hba_aer_enabled
)
4249 pci_disable_pcie_error_reporting(phba
->pcidev
);
4251 lpfc_hba_down_post(phba
);
4257 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4258 * @phba: Pointer to HBA context object.
4260 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4261 * API jump table function pointer from the lpfc_hba struct.
4264 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
4266 return phba
->lpfc_sli_brdrestart(phba
);
4270 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4271 * @phba: Pointer to HBA context object.
4273 * This function is called after a HBA restart to wait for successful
4274 * restart of the HBA. Successful restart of the HBA is indicated by
4275 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4276 * iteration, the function will restart the HBA again. The function returns
4277 * zero if HBA successfully restarted else returns negative error code.
4280 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
4282 uint32_t status
, i
= 0;
4284 /* Read the HBA Host Status Register */
4285 if (lpfc_readl(phba
->HSregaddr
, &status
))
4288 /* Check status register to see what current state is */
4290 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
4292 /* Check every 10ms for 10 retries, then every 100ms for 90
4293 * retries, then every 1 sec for 50 retires for a total of
4294 * ~60 seconds before reset the board again and check every
4295 * 1 sec for 50 retries. The up to 60 seconds before the
4296 * board ready is required by the Falcon FIPS zeroization
4297 * complete, and any reset the board in between shall cause
4298 * restart of zeroization, further delay the board ready.
4301 /* Adapter failed to init, timeout, status reg
4303 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4304 "0436 Adapter failed to init, "
4305 "timeout, status reg x%x, "
4306 "FW Data: A8 x%x AC x%x\n", status
,
4307 readl(phba
->MBslimaddr
+ 0xa8),
4308 readl(phba
->MBslimaddr
+ 0xac));
4309 phba
->link_state
= LPFC_HBA_ERROR
;
4313 /* Check to see if any errors occurred during init */
4314 if (status
& HS_FFERM
) {
4315 /* ERROR: During chipset initialization */
4316 /* Adapter failed to init, chipset, status reg
4318 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4319 "0437 Adapter failed to init, "
4320 "chipset, status reg x%x, "
4321 "FW Data: A8 x%x AC x%x\n", status
,
4322 readl(phba
->MBslimaddr
+ 0xa8),
4323 readl(phba
->MBslimaddr
+ 0xac));
4324 phba
->link_state
= LPFC_HBA_ERROR
;
4337 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4338 lpfc_sli_brdrestart(phba
);
4340 /* Read the HBA Host Status Register */
4341 if (lpfc_readl(phba
->HSregaddr
, &status
))
4345 /* Check to see if any errors occurred during init */
4346 if (status
& HS_FFERM
) {
4347 /* ERROR: During chipset initialization */
4348 /* Adapter failed to init, chipset, status reg <status> */
4349 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4350 "0438 Adapter failed to init, chipset, "
4352 "FW Data: A8 x%x AC x%x\n", status
,
4353 readl(phba
->MBslimaddr
+ 0xa8),
4354 readl(phba
->MBslimaddr
+ 0xac));
4355 phba
->link_state
= LPFC_HBA_ERROR
;
4359 /* Clear all interrupt enable conditions */
4360 writel(0, phba
->HCregaddr
);
4361 readl(phba
->HCregaddr
); /* flush */
4363 /* setup host attn register */
4364 writel(0xffffffff, phba
->HAregaddr
);
4365 readl(phba
->HAregaddr
); /* flush */
4370 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4372 * This function calculates and returns the number of HBQs required to be
4376 lpfc_sli_hbq_count(void)
4378 return ARRAY_SIZE(lpfc_hbq_defs
);
4382 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4384 * This function adds the number of hbq entries in every HBQ to get
4385 * the total number of hbq entries required for the HBA and returns
4389 lpfc_sli_hbq_entry_count(void)
4391 int hbq_count
= lpfc_sli_hbq_count();
4395 for (i
= 0; i
< hbq_count
; ++i
)
4396 count
+= lpfc_hbq_defs
[i
]->entry_count
;
4401 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4403 * This function calculates amount of memory required for all hbq entries
4404 * to be configured and returns the total memory required.
4407 lpfc_sli_hbq_size(void)
4409 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
4413 * lpfc_sli_hbq_setup - configure and initialize HBQs
4414 * @phba: Pointer to HBA context object.
4416 * This function is called during the SLI initialization to configure
4417 * all the HBQs and post buffers to the HBQ. The caller is not
4418 * required to hold any locks. This function will return zero if successful
4419 * else it will return negative error code.
4422 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
4424 int hbq_count
= lpfc_sli_hbq_count();
4428 uint32_t hbq_entry_index
;
4430 /* Get a Mailbox buffer to setup mailbox
4431 * commands for HBA initialization
4433 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4440 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4441 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4442 phba
->hbq_in_use
= 1;
4444 hbq_entry_index
= 0;
4445 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
4446 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
4447 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
4448 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
4449 phba
->hbqs
[hbqno
].entry_count
=
4450 lpfc_hbq_defs
[hbqno
]->entry_count
;
4451 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
4452 hbq_entry_index
, pmb
);
4453 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
4455 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
4456 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4457 mbxStatus <status>, ring <num> */
4459 lpfc_printf_log(phba
, KERN_ERR
,
4460 LOG_SLI
| LOG_VPORT
,
4461 "1805 Adapter failed to init. "
4462 "Data: x%x x%x x%x\n",
4464 pmbox
->mbxStatus
, hbqno
);
4466 phba
->link_state
= LPFC_HBA_ERROR
;
4467 mempool_free(pmb
, phba
->mbox_mem_pool
);
4471 phba
->hbq_count
= hbq_count
;
4473 mempool_free(pmb
, phba
->mbox_mem_pool
);
4475 /* Initially populate or replenish the HBQs */
4476 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
4477 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
4482 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4483 * @phba: Pointer to HBA context object.
4485 * This function is called during the SLI initialization to configure
4486 * all the HBQs and post buffers to the HBQ. The caller is not
4487 * required to hold any locks. This function will return zero if successful
4488 * else it will return negative error code.
4491 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
4493 phba
->hbq_in_use
= 1;
4494 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
4495 phba
->hbq_count
= 1;
4496 /* Initially populate or replenish the HBQs */
4497 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
4502 * lpfc_sli_config_port - Issue config port mailbox command
4503 * @phba: Pointer to HBA context object.
4504 * @sli_mode: sli mode - 2/3
4506 * This function is called by the sli intialization code path
4507 * to issue config_port mailbox command. This function restarts the
4508 * HBA firmware and issues a config_port mailbox command to configure
4509 * the SLI interface in the sli mode specified by sli_mode
4510 * variable. The caller is not required to hold any locks.
4511 * The function returns 0 if successful, else returns negative error
4515 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
4518 uint32_t resetcount
= 0, rc
= 0, done
= 0;
4520 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4522 phba
->link_state
= LPFC_HBA_ERROR
;
4526 phba
->sli_rev
= sli_mode
;
4527 while (resetcount
< 2 && !done
) {
4528 spin_lock_irq(&phba
->hbalock
);
4529 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4530 spin_unlock_irq(&phba
->hbalock
);
4531 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4532 lpfc_sli_brdrestart(phba
);
4533 rc
= lpfc_sli_chipset_init(phba
);
4537 spin_lock_irq(&phba
->hbalock
);
4538 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4539 spin_unlock_irq(&phba
->hbalock
);
4542 /* Call pre CONFIG_PORT mailbox command initialization. A
4543 * value of 0 means the call was successful. Any other
4544 * nonzero value is a failure, but if ERESTART is returned,
4545 * the driver may reset the HBA and try again.
4547 rc
= lpfc_config_port_prep(phba
);
4548 if (rc
== -ERESTART
) {
4549 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4554 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4555 lpfc_config_port(phba
, pmb
);
4556 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
4557 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
4558 LPFC_SLI3_HBQ_ENABLED
|
4559 LPFC_SLI3_CRP_ENABLED
|
4560 LPFC_SLI3_BG_ENABLED
|
4561 LPFC_SLI3_DSS_ENABLED
);
4562 if (rc
!= MBX_SUCCESS
) {
4563 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4564 "0442 Adapter failed to init, mbxCmd x%x "
4565 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4566 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
4567 spin_lock_irq(&phba
->hbalock
);
4568 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
4569 spin_unlock_irq(&phba
->hbalock
);
4572 /* Allow asynchronous mailbox command to go through */
4573 spin_lock_irq(&phba
->hbalock
);
4574 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4575 spin_unlock_irq(&phba
->hbalock
);
4578 if ((pmb
->u
.mb
.un
.varCfgPort
.casabt
== 1) &&
4579 (pmb
->u
.mb
.un
.varCfgPort
.gasabt
== 0))
4580 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4581 "3110 Port did not grant ASABT\n");
4586 goto do_prep_failed
;
4588 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
4589 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
4591 goto do_prep_failed
;
4593 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
4594 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
4595 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
4596 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
4597 phba
->max_vpi
: phba
->max_vports
;
4601 phba
->fips_level
= 0;
4602 phba
->fips_spec_rev
= 0;
4603 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
4604 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
4605 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
4606 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
4607 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4608 "2850 Security Crypto Active. FIPS x%d "
4610 phba
->fips_level
, phba
->fips_spec_rev
);
4612 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
4613 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4614 "2856 Config Port Security Crypto "
4616 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
4618 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
4619 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
4620 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
4621 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
4623 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
4624 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
4626 if (phba
->cfg_enable_bg
) {
4627 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
4628 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4630 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4631 "0443 Adapter did not grant "
4635 phba
->hbq_get
= NULL
;
4636 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4640 mempool_free(pmb
, phba
->mbox_mem_pool
);
4646 * lpfc_sli_hba_setup - SLI intialization function
4647 * @phba: Pointer to HBA context object.
4649 * This function is the main SLI intialization function. This function
4650 * is called by the HBA intialization code, HBA reset code and HBA
4651 * error attention handler code. Caller is not required to hold any
4652 * locks. This function issues config_port mailbox command to configure
4653 * the SLI, setup iocb rings and HBQ rings. In the end the function
4654 * calls the config_port_post function to issue init_link mailbox
4655 * command and to start the discovery. The function will return zero
4656 * if successful, else it will return negative error code.
4659 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4665 switch (phba
->cfg_sli_mode
) {
4667 if (phba
->cfg_enable_npiv
) {
4668 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4669 "1824 NPIV enabled: Override sli_mode "
4670 "parameter (%d) to auto (0).\n",
4671 phba
->cfg_sli_mode
);
4680 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4681 "1819 Unrecognized sli_mode parameter: %d.\n",
4682 phba
->cfg_sli_mode
);
4686 phba
->fcp_embed_io
= 0; /* SLI4 FC support only */
4688 rc
= lpfc_sli_config_port(phba
, mode
);
4690 if (rc
&& phba
->cfg_sli_mode
== 3)
4691 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4692 "1820 Unable to select SLI-3. "
4693 "Not supported by adapter.\n");
4694 if (rc
&& mode
!= 2)
4695 rc
= lpfc_sli_config_port(phba
, 2);
4696 else if (rc
&& mode
== 2)
4697 rc
= lpfc_sli_config_port(phba
, 3);
4699 goto lpfc_sli_hba_setup_error
;
4701 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4702 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4703 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4705 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4706 "2709 This device supports "
4707 "Advanced Error Reporting (AER)\n");
4708 spin_lock_irq(&phba
->hbalock
);
4709 phba
->hba_flag
|= HBA_AER_ENABLED
;
4710 spin_unlock_irq(&phba
->hbalock
);
4712 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4713 "2708 This device does not support "
4714 "Advanced Error Reporting (AER): %d\n",
4716 phba
->cfg_aer_support
= 0;
4720 if (phba
->sli_rev
== 3) {
4721 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4722 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4724 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4725 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4726 phba
->sli3_options
= 0;
4729 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4730 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4731 phba
->sli_rev
, phba
->max_vpi
);
4732 rc
= lpfc_sli_ring_map(phba
);
4735 goto lpfc_sli_hba_setup_error
;
4737 /* Initialize VPIs. */
4738 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
4740 * The VPI bitmask and physical ID array are allocated
4741 * and initialized once only - at driver load. A port
4742 * reset doesn't need to reinitialize this memory.
4744 if ((phba
->vpi_bmask
== NULL
) && (phba
->vpi_ids
== NULL
)) {
4745 longs
= (phba
->max_vpi
+ BITS_PER_LONG
) / BITS_PER_LONG
;
4746 phba
->vpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4748 if (!phba
->vpi_bmask
) {
4750 goto lpfc_sli_hba_setup_error
;
4753 phba
->vpi_ids
= kzalloc(
4754 (phba
->max_vpi
+1) * sizeof(uint16_t),
4756 if (!phba
->vpi_ids
) {
4757 kfree(phba
->vpi_bmask
);
4759 goto lpfc_sli_hba_setup_error
;
4761 for (i
= 0; i
< phba
->max_vpi
; i
++)
4762 phba
->vpi_ids
[i
] = i
;
4767 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4768 rc
= lpfc_sli_hbq_setup(phba
);
4770 goto lpfc_sli_hba_setup_error
;
4772 spin_lock_irq(&phba
->hbalock
);
4773 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4774 spin_unlock_irq(&phba
->hbalock
);
4776 rc
= lpfc_config_port_post(phba
);
4778 goto lpfc_sli_hba_setup_error
;
4782 lpfc_sli_hba_setup_error
:
4783 phba
->link_state
= LPFC_HBA_ERROR
;
4784 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4785 "0445 Firmware initialization failed\n");
4790 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4791 * @phba: Pointer to HBA context object.
4792 * @mboxq: mailbox pointer.
4793 * This function issue a dump mailbox command to read config region
4794 * 23 and parse the records in the region and populate driver
4798 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
)
4800 LPFC_MBOXQ_t
*mboxq
;
4801 struct lpfc_dmabuf
*mp
;
4802 struct lpfc_mqe
*mqe
;
4803 uint32_t data_length
;
4806 /* Program the default value of vlan_id and fc_map */
4807 phba
->valid_vlan
= 0;
4808 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4809 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4810 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4812 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4816 mqe
= &mboxq
->u
.mqe
;
4817 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
)) {
4819 goto out_free_mboxq
;
4822 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4823 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4825 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4826 "(%d):2571 Mailbox cmd x%x Status x%x "
4827 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4828 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4829 "CQ: x%x x%x x%x x%x\n",
4830 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4831 bf_get(lpfc_mqe_command
, mqe
),
4832 bf_get(lpfc_mqe_status
, mqe
),
4833 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4834 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4835 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4836 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4837 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4838 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4839 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4840 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4841 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4843 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4844 mboxq
->mcqe
.trailer
);
4847 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4850 goto out_free_mboxq
;
4852 data_length
= mqe
->un
.mb_words
[5];
4853 if (data_length
> DMP_RGN23_SIZE
) {
4854 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4857 goto out_free_mboxq
;
4860 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4861 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4866 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4871 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4872 * @phba: pointer to lpfc hba data structure.
4873 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4874 * @vpd: pointer to the memory to hold resulting port vpd data.
4875 * @vpd_size: On input, the number of bytes allocated to @vpd.
4876 * On output, the number of data bytes in @vpd.
4878 * This routine executes a READ_REV SLI4 mailbox command. In
4879 * addition, this routine gets the port vpd data.
4883 * -ENOMEM - could not allocated memory.
4886 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4887 uint8_t *vpd
, uint32_t *vpd_size
)
4891 struct lpfc_dmabuf
*dmabuf
;
4892 struct lpfc_mqe
*mqe
;
4894 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4899 * Get a DMA buffer for the vpd data resulting from the READ_REV
4902 dma_size
= *vpd_size
;
4903 dmabuf
->virt
= dma_zalloc_coherent(&phba
->pcidev
->dev
, dma_size
,
4904 &dmabuf
->phys
, GFP_KERNEL
);
4905 if (!dmabuf
->virt
) {
4911 * The SLI4 implementation of READ_REV conflicts at word1,
4912 * bits 31:16 and SLI4 adds vpd functionality not present
4913 * in SLI3. This code corrects the conflicts.
4915 lpfc_read_rev(phba
, mboxq
);
4916 mqe
= &mboxq
->u
.mqe
;
4917 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4918 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4919 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4920 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4921 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4923 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4925 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4926 dmabuf
->virt
, dmabuf
->phys
);
4932 * The available vpd length cannot be bigger than the
4933 * DMA buffer passed to the port. Catch the less than
4934 * case and update the caller's size.
4936 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4937 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4939 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4941 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4942 dmabuf
->virt
, dmabuf
->phys
);
4948 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4949 * @phba: pointer to lpfc hba data structure.
4951 * This routine retrieves SLI4 device physical port name this PCI function
4956 * otherwise - failed to retrieve physical port name
4959 lpfc_sli4_retrieve_pport_name(struct lpfc_hba
*phba
)
4961 LPFC_MBOXQ_t
*mboxq
;
4962 struct lpfc_mbx_get_cntl_attributes
*mbx_cntl_attr
;
4963 struct lpfc_controller_attribute
*cntl_attr
;
4964 struct lpfc_mbx_get_port_name
*get_port_name
;
4965 void *virtaddr
= NULL
;
4966 uint32_t alloclen
, reqlen
;
4967 uint32_t shdr_status
, shdr_add_status
;
4968 union lpfc_sli4_cfg_shdr
*shdr
;
4969 char cport_name
= 0;
4972 /* We assume nothing at this point */
4973 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4974 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_NON
;
4976 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4979 /* obtain link type and link number via READ_CONFIG */
4980 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4981 lpfc_sli4_read_config(phba
);
4982 if (phba
->sli4_hba
.lnk_info
.lnk_dv
== LPFC_LNK_DAT_VAL
)
4983 goto retrieve_ppname
;
4985 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4986 reqlen
= sizeof(struct lpfc_mbx_get_cntl_attributes
);
4987 alloclen
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
4988 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES
, reqlen
,
4989 LPFC_SLI4_MBX_NEMBED
);
4990 if (alloclen
< reqlen
) {
4991 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4992 "3084 Allocated DMA memory size (%d) is "
4993 "less than the requested DMA memory size "
4994 "(%d)\n", alloclen
, reqlen
);
4996 goto out_free_mboxq
;
4998 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4999 virtaddr
= mboxq
->sge_array
->addr
[0];
5000 mbx_cntl_attr
= (struct lpfc_mbx_get_cntl_attributes
*)virtaddr
;
5001 shdr
= &mbx_cntl_attr
->cfg_shdr
;
5002 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5003 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5004 if (shdr_status
|| shdr_add_status
|| rc
) {
5005 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
5006 "3085 Mailbox x%x (x%x/x%x) failed, "
5007 "rc:x%x, status:x%x, add_status:x%x\n",
5008 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5009 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
5010 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
5011 rc
, shdr_status
, shdr_add_status
);
5013 goto out_free_mboxq
;
5015 cntl_attr
= &mbx_cntl_attr
->cntl_attr
;
5016 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_VAL
;
5017 phba
->sli4_hba
.lnk_info
.lnk_tp
=
5018 bf_get(lpfc_cntl_attr_lnk_type
, cntl_attr
);
5019 phba
->sli4_hba
.lnk_info
.lnk_no
=
5020 bf_get(lpfc_cntl_attr_lnk_numb
, cntl_attr
);
5021 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5022 "3086 lnk_type:%d, lnk_numb:%d\n",
5023 phba
->sli4_hba
.lnk_info
.lnk_tp
,
5024 phba
->sli4_hba
.lnk_info
.lnk_no
);
5027 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5028 LPFC_MBOX_OPCODE_GET_PORT_NAME
,
5029 sizeof(struct lpfc_mbx_get_port_name
) -
5030 sizeof(struct lpfc_sli4_cfg_mhdr
),
5031 LPFC_SLI4_MBX_EMBED
);
5032 get_port_name
= &mboxq
->u
.mqe
.un
.get_port_name
;
5033 shdr
= (union lpfc_sli4_cfg_shdr
*)&get_port_name
->header
.cfg_shdr
;
5034 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
, LPFC_OPCODE_VERSION_1
);
5035 bf_set(lpfc_mbx_get_port_name_lnk_type
, &get_port_name
->u
.request
,
5036 phba
->sli4_hba
.lnk_info
.lnk_tp
);
5037 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5038 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5039 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5040 if (shdr_status
|| shdr_add_status
|| rc
) {
5041 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
5042 "3087 Mailbox x%x (x%x/x%x) failed: "
5043 "rc:x%x, status:x%x, add_status:x%x\n",
5044 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5045 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
5046 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
5047 rc
, shdr_status
, shdr_add_status
);
5049 goto out_free_mboxq
;
5051 switch (phba
->sli4_hba
.lnk_info
.lnk_no
) {
5052 case LPFC_LINK_NUMBER_0
:
5053 cport_name
= bf_get(lpfc_mbx_get_port_name_name0
,
5054 &get_port_name
->u
.response
);
5055 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5057 case LPFC_LINK_NUMBER_1
:
5058 cport_name
= bf_get(lpfc_mbx_get_port_name_name1
,
5059 &get_port_name
->u
.response
);
5060 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5062 case LPFC_LINK_NUMBER_2
:
5063 cport_name
= bf_get(lpfc_mbx_get_port_name_name2
,
5064 &get_port_name
->u
.response
);
5065 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5067 case LPFC_LINK_NUMBER_3
:
5068 cport_name
= bf_get(lpfc_mbx_get_port_name_name3
,
5069 &get_port_name
->u
.response
);
5070 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5076 if (phba
->sli4_hba
.pport_name_sta
== LPFC_SLI4_PPNAME_GET
) {
5077 phba
->Port
[0] = cport_name
;
5078 phba
->Port
[1] = '\0';
5079 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5080 "3091 SLI get port name: %s\n", phba
->Port
);
5084 if (rc
!= MBX_TIMEOUT
) {
5085 if (bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
) == MBX_SLI4_CONFIG
)
5086 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
5088 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5094 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5095 * @phba: pointer to lpfc hba data structure.
5097 * This routine is called to explicitly arm the SLI4 device's completion and
5101 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
5105 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
5106 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
5108 if (phba
->sli4_hba
.fcp_cq
) {
5110 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
5112 } while (++fcp_eqidx
< phba
->cfg_fcp_io_channel
);
5116 lpfc_sli4_cq_release(phba
->sli4_hba
.oas_cq
, LPFC_QUEUE_REARM
);
5118 if (phba
->sli4_hba
.hba_eq
) {
5119 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
5121 lpfc_sli4_eq_release(phba
->sli4_hba
.hba_eq
[fcp_eqidx
],
5126 lpfc_sli4_eq_release(phba
->sli4_hba
.fof_eq
, LPFC_QUEUE_REARM
);
5130 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5131 * @phba: Pointer to HBA context object.
5132 * @type: The resource extent type.
5133 * @extnt_count: buffer to hold port available extent count.
5134 * @extnt_size: buffer to hold element count per extent.
5136 * This function calls the port and retrievs the number of available
5137 * extents and their size for a particular extent type.
5139 * Returns: 0 if successful. Nonzero otherwise.
5142 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
,
5143 uint16_t *extnt_count
, uint16_t *extnt_size
)
5148 struct lpfc_mbx_get_rsrc_extent_info
*rsrc_info
;
5151 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5155 /* Find out how many extents are available for this resource type */
5156 length
= (sizeof(struct lpfc_mbx_get_rsrc_extent_info
) -
5157 sizeof(struct lpfc_sli4_cfg_mhdr
));
5158 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5159 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO
,
5160 length
, LPFC_SLI4_MBX_EMBED
);
5162 /* Send an extents count of 0 - the GET doesn't use it. */
5163 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5164 LPFC_SLI4_MBX_EMBED
);
5170 if (!phba
->sli4_hba
.intr_enable
)
5171 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5173 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5174 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5181 rsrc_info
= &mbox
->u
.mqe
.un
.rsrc_extent_info
;
5182 if (bf_get(lpfc_mbox_hdr_status
,
5183 &rsrc_info
->header
.cfg_shdr
.response
)) {
5184 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5185 "2930 Failed to get resource extents "
5186 "Status 0x%x Add'l Status 0x%x\n",
5187 bf_get(lpfc_mbox_hdr_status
,
5188 &rsrc_info
->header
.cfg_shdr
.response
),
5189 bf_get(lpfc_mbox_hdr_add_status
,
5190 &rsrc_info
->header
.cfg_shdr
.response
));
5195 *extnt_count
= bf_get(lpfc_mbx_get_rsrc_extent_info_cnt
,
5197 *extnt_size
= bf_get(lpfc_mbx_get_rsrc_extent_info_size
,
5200 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5201 "3162 Retrieved extents type-%d from port: count:%d, "
5202 "size:%d\n", type
, *extnt_count
, *extnt_size
);
5205 mempool_free(mbox
, phba
->mbox_mem_pool
);
5210 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5211 * @phba: Pointer to HBA context object.
5212 * @type: The extent type to check.
5214 * This function reads the current available extents from the port and checks
5215 * if the extent count or extent size has changed since the last access.
5216 * Callers use this routine post port reset to understand if there is a
5217 * extent reprovisioning requirement.
5220 * -Error: error indicates problem.
5221 * 1: Extent count or size has changed.
5225 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
)
5227 uint16_t curr_ext_cnt
, rsrc_ext_cnt
;
5228 uint16_t size_diff
, rsrc_ext_size
;
5230 struct lpfc_rsrc_blks
*rsrc_entry
;
5231 struct list_head
*rsrc_blk_list
= NULL
;
5235 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5242 case LPFC_RSC_TYPE_FCOE_RPI
:
5243 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5245 case LPFC_RSC_TYPE_FCOE_VPI
:
5246 rsrc_blk_list
= &phba
->lpfc_vpi_blk_list
;
5248 case LPFC_RSC_TYPE_FCOE_XRI
:
5249 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5251 case LPFC_RSC_TYPE_FCOE_VFI
:
5252 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5258 list_for_each_entry(rsrc_entry
, rsrc_blk_list
, list
) {
5260 if (rsrc_entry
->rsrc_size
!= rsrc_ext_size
)
5264 if (curr_ext_cnt
!= rsrc_ext_cnt
|| size_diff
!= 0)
5271 * lpfc_sli4_cfg_post_extnts -
5272 * @phba: Pointer to HBA context object.
5273 * @extnt_cnt - number of available extents.
5274 * @type - the extent type (rpi, xri, vfi, vpi).
5275 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5276 * @mbox - pointer to the caller's allocated mailbox structure.
5278 * This function executes the extents allocation request. It also
5279 * takes care of the amount of memory needed to allocate or get the
5280 * allocated extents. It is the caller's responsibility to evaluate
5284 * -Error: Error value describes the condition found.
5288 lpfc_sli4_cfg_post_extnts(struct lpfc_hba
*phba
, uint16_t extnt_cnt
,
5289 uint16_t type
, bool *emb
, LPFC_MBOXQ_t
*mbox
)
5294 uint32_t alloc_len
, mbox_tmo
;
5296 /* Calculate the total requested length of the dma memory */
5297 req_len
= extnt_cnt
* sizeof(uint16_t);
5300 * Calculate the size of an embedded mailbox. The uint32_t
5301 * accounts for extents-specific word.
5303 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
5307 * Presume the allocation and response will fit into an embedded
5308 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5310 *emb
= LPFC_SLI4_MBX_EMBED
;
5311 if (req_len
> emb_len
) {
5312 req_len
= extnt_cnt
* sizeof(uint16_t) +
5313 sizeof(union lpfc_sli4_cfg_shdr
) +
5315 *emb
= LPFC_SLI4_MBX_NEMBED
;
5318 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5319 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT
,
5321 if (alloc_len
< req_len
) {
5322 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5323 "2982 Allocated DMA memory size (x%x) is "
5324 "less than the requested DMA memory "
5325 "size (x%x)\n", alloc_len
, req_len
);
5328 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, extnt_cnt
, type
, *emb
);
5332 if (!phba
->sli4_hba
.intr_enable
)
5333 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5335 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5336 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5345 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5346 * @phba: Pointer to HBA context object.
5347 * @type: The resource extent type to allocate.
5349 * This function allocates the number of elements for the specified
5353 lpfc_sli4_alloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5356 uint16_t rsrc_id_cnt
, rsrc_cnt
, rsrc_size
;
5357 uint16_t rsrc_id
, rsrc_start
, j
, k
;
5360 unsigned long longs
;
5361 unsigned long *bmask
;
5362 struct lpfc_rsrc_blks
*rsrc_blks
;
5365 struct lpfc_id_range
*id_array
= NULL
;
5366 void *virtaddr
= NULL
;
5367 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
5368 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
5369 struct list_head
*ext_blk_list
;
5371 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5377 if ((rsrc_cnt
== 0) || (rsrc_size
== 0)) {
5378 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5379 "3009 No available Resource Extents "
5380 "for resource type 0x%x: Count: 0x%x, "
5381 "Size 0x%x\n", type
, rsrc_cnt
,
5386 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_INIT
| LOG_SLI
,
5387 "2903 Post resource extents type-0x%x: "
5388 "count:%d, size %d\n", type
, rsrc_cnt
, rsrc_size
);
5390 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5394 rc
= lpfc_sli4_cfg_post_extnts(phba
, rsrc_cnt
, type
, &emb
, mbox
);
5401 * Figure out where the response is located. Then get local pointers
5402 * to the response data. The port does not guarantee to respond to
5403 * all extents counts request so update the local variable with the
5404 * allocated count from the port.
5406 if (emb
== LPFC_SLI4_MBX_EMBED
) {
5407 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
5408 id_array
= &rsrc_ext
->u
.rsp
.id
[0];
5409 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
5411 virtaddr
= mbox
->sge_array
->addr
[0];
5412 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
5413 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
5414 id_array
= &n_rsrc
->id
;
5417 longs
= ((rsrc_cnt
* rsrc_size
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5418 rsrc_id_cnt
= rsrc_cnt
* rsrc_size
;
5421 * Based on the resource size and count, correct the base and max
5424 length
= sizeof(struct lpfc_rsrc_blks
);
5426 case LPFC_RSC_TYPE_FCOE_RPI
:
5427 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5428 sizeof(unsigned long),
5430 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5434 phba
->sli4_hba
.rpi_ids
= kzalloc(rsrc_id_cnt
*
5437 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5438 kfree(phba
->sli4_hba
.rpi_bmask
);
5444 * The next_rpi was initialized with the maximum available
5445 * count but the port may allocate a smaller number. Catch
5446 * that case and update the next_rpi.
5448 phba
->sli4_hba
.next_rpi
= rsrc_id_cnt
;
5450 /* Initialize local ptrs for common extent processing later. */
5451 bmask
= phba
->sli4_hba
.rpi_bmask
;
5452 ids
= phba
->sli4_hba
.rpi_ids
;
5453 ext_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5455 case LPFC_RSC_TYPE_FCOE_VPI
:
5456 phba
->vpi_bmask
= kzalloc(longs
*
5457 sizeof(unsigned long),
5459 if (unlikely(!phba
->vpi_bmask
)) {
5463 phba
->vpi_ids
= kzalloc(rsrc_id_cnt
*
5466 if (unlikely(!phba
->vpi_ids
)) {
5467 kfree(phba
->vpi_bmask
);
5472 /* Initialize local ptrs for common extent processing later. */
5473 bmask
= phba
->vpi_bmask
;
5474 ids
= phba
->vpi_ids
;
5475 ext_blk_list
= &phba
->lpfc_vpi_blk_list
;
5477 case LPFC_RSC_TYPE_FCOE_XRI
:
5478 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5479 sizeof(unsigned long),
5481 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5485 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5486 phba
->sli4_hba
.xri_ids
= kzalloc(rsrc_id_cnt
*
5489 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5490 kfree(phba
->sli4_hba
.xri_bmask
);
5495 /* Initialize local ptrs for common extent processing later. */
5496 bmask
= phba
->sli4_hba
.xri_bmask
;
5497 ids
= phba
->sli4_hba
.xri_ids
;
5498 ext_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5500 case LPFC_RSC_TYPE_FCOE_VFI
:
5501 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5502 sizeof(unsigned long),
5504 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5508 phba
->sli4_hba
.vfi_ids
= kzalloc(rsrc_id_cnt
*
5511 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5512 kfree(phba
->sli4_hba
.vfi_bmask
);
5517 /* Initialize local ptrs for common extent processing later. */
5518 bmask
= phba
->sli4_hba
.vfi_bmask
;
5519 ids
= phba
->sli4_hba
.vfi_ids
;
5520 ext_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5523 /* Unsupported Opcode. Fail call. */
5527 ext_blk_list
= NULL
;
5532 * Complete initializing the extent configuration with the
5533 * allocated ids assigned to this function. The bitmask serves
5534 * as an index into the array and manages the available ids. The
5535 * array just stores the ids communicated to the port via the wqes.
5537 for (i
= 0, j
= 0, k
= 0; i
< rsrc_cnt
; i
++) {
5539 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_0
,
5542 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_1
,
5545 rsrc_blks
= kzalloc(length
, GFP_KERNEL
);
5546 if (unlikely(!rsrc_blks
)) {
5552 rsrc_blks
->rsrc_start
= rsrc_id
;
5553 rsrc_blks
->rsrc_size
= rsrc_size
;
5554 list_add_tail(&rsrc_blks
->list
, ext_blk_list
);
5555 rsrc_start
= rsrc_id
;
5556 if ((type
== LPFC_RSC_TYPE_FCOE_XRI
) && (j
== 0))
5557 phba
->sli4_hba
.scsi_xri_start
= rsrc_start
+
5558 lpfc_sli4_get_els_iocb_cnt(phba
);
5560 while (rsrc_id
< (rsrc_start
+ rsrc_size
)) {
5565 /* Entire word processed. Get next word.*/
5570 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
5575 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5576 * @phba: Pointer to HBA context object.
5577 * @type: the extent's type.
5579 * This function deallocates all extents of a particular resource type.
5580 * SLI4 does not allow for deallocating a particular extent range. It
5581 * is the caller's responsibility to release all kernel memory resources.
5584 lpfc_sli4_dealloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5587 uint32_t length
, mbox_tmo
= 0;
5589 struct lpfc_mbx_dealloc_rsrc_extents
*dealloc_rsrc
;
5590 struct lpfc_rsrc_blks
*rsrc_blk
, *rsrc_blk_next
;
5592 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5597 * This function sends an embedded mailbox because it only sends the
5598 * the resource type. All extents of this type are released by the
5601 length
= (sizeof(struct lpfc_mbx_dealloc_rsrc_extents
) -
5602 sizeof(struct lpfc_sli4_cfg_mhdr
));
5603 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5604 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT
,
5605 length
, LPFC_SLI4_MBX_EMBED
);
5607 /* Send an extents count of 0 - the dealloc doesn't use it. */
5608 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5609 LPFC_SLI4_MBX_EMBED
);
5614 if (!phba
->sli4_hba
.intr_enable
)
5615 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5617 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5618 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5625 dealloc_rsrc
= &mbox
->u
.mqe
.un
.dealloc_rsrc_extents
;
5626 if (bf_get(lpfc_mbox_hdr_status
,
5627 &dealloc_rsrc
->header
.cfg_shdr
.response
)) {
5628 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5629 "2919 Failed to release resource extents "
5630 "for type %d - Status 0x%x Add'l Status 0x%x. "
5631 "Resource memory not released.\n",
5633 bf_get(lpfc_mbox_hdr_status
,
5634 &dealloc_rsrc
->header
.cfg_shdr
.response
),
5635 bf_get(lpfc_mbox_hdr_add_status
,
5636 &dealloc_rsrc
->header
.cfg_shdr
.response
));
5641 /* Release kernel memory resources for the specific type. */
5643 case LPFC_RSC_TYPE_FCOE_VPI
:
5644 kfree(phba
->vpi_bmask
);
5645 kfree(phba
->vpi_ids
);
5646 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5647 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5648 &phba
->lpfc_vpi_blk_list
, list
) {
5649 list_del_init(&rsrc_blk
->list
);
5652 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5654 case LPFC_RSC_TYPE_FCOE_XRI
:
5655 kfree(phba
->sli4_hba
.xri_bmask
);
5656 kfree(phba
->sli4_hba
.xri_ids
);
5657 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5658 &phba
->sli4_hba
.lpfc_xri_blk_list
, list
) {
5659 list_del_init(&rsrc_blk
->list
);
5663 case LPFC_RSC_TYPE_FCOE_VFI
:
5664 kfree(phba
->sli4_hba
.vfi_bmask
);
5665 kfree(phba
->sli4_hba
.vfi_ids
);
5666 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5667 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5668 &phba
->sli4_hba
.lpfc_vfi_blk_list
, list
) {
5669 list_del_init(&rsrc_blk
->list
);
5673 case LPFC_RSC_TYPE_FCOE_RPI
:
5674 /* RPI bitmask and physical id array are cleaned up earlier. */
5675 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5676 &phba
->sli4_hba
.lpfc_rpi_blk_list
, list
) {
5677 list_del_init(&rsrc_blk
->list
);
5685 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5688 mempool_free(mbox
, phba
->mbox_mem_pool
);
5693 lpfc_set_features(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
,
5698 len
= sizeof(struct lpfc_mbx_set_feature
) -
5699 sizeof(struct lpfc_sli4_cfg_mhdr
);
5700 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5701 LPFC_MBOX_OPCODE_SET_FEATURES
, len
,
5702 LPFC_SLI4_MBX_EMBED
);
5705 case LPFC_SET_UE_RECOVERY
:
5706 bf_set(lpfc_mbx_set_feature_UER
,
5707 &mbox
->u
.mqe
.un
.set_feature
, 1);
5708 mbox
->u
.mqe
.un
.set_feature
.feature
= LPFC_SET_UE_RECOVERY
;
5709 mbox
->u
.mqe
.un
.set_feature
.param_len
= 8;
5711 case LPFC_SET_MDS_DIAGS
:
5712 bf_set(lpfc_mbx_set_feature_mds
,
5713 &mbox
->u
.mqe
.un
.set_feature
, 1);
5714 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk
,
5715 &mbox
->u
.mqe
.un
.set_feature
, 0);
5716 mbox
->u
.mqe
.un
.set_feature
.feature
= LPFC_SET_MDS_DIAGS
;
5717 mbox
->u
.mqe
.un
.set_feature
.param_len
= 8;
5725 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5726 * @phba: Pointer to HBA context object.
5728 * This function allocates all SLI4 resource identifiers.
5731 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba
*phba
)
5733 int i
, rc
, error
= 0;
5734 uint16_t count
, base
;
5735 unsigned long longs
;
5737 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5738 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5739 if (phba
->sli4_hba
.extents_in_use
) {
5741 * The port supports resource extents. The XRI, VPI, VFI, RPI
5742 * resource extent count must be read and allocated before
5743 * provisioning the resource id arrays.
5745 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5746 LPFC_IDX_RSRC_RDY
) {
5748 * Extent-based resources are set - the driver could
5749 * be in a port reset. Figure out if any corrective
5750 * actions need to be taken.
5752 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5753 LPFC_RSC_TYPE_FCOE_VFI
);
5756 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5757 LPFC_RSC_TYPE_FCOE_VPI
);
5760 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5761 LPFC_RSC_TYPE_FCOE_XRI
);
5764 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5765 LPFC_RSC_TYPE_FCOE_RPI
);
5770 * It's possible that the number of resources
5771 * provided to this port instance changed between
5772 * resets. Detect this condition and reallocate
5773 * resources. Otherwise, there is no action.
5776 lpfc_printf_log(phba
, KERN_INFO
,
5777 LOG_MBOX
| LOG_INIT
,
5778 "2931 Detected extent resource "
5779 "change. Reallocating all "
5781 rc
= lpfc_sli4_dealloc_extent(phba
,
5782 LPFC_RSC_TYPE_FCOE_VFI
);
5783 rc
= lpfc_sli4_dealloc_extent(phba
,
5784 LPFC_RSC_TYPE_FCOE_VPI
);
5785 rc
= lpfc_sli4_dealloc_extent(phba
,
5786 LPFC_RSC_TYPE_FCOE_XRI
);
5787 rc
= lpfc_sli4_dealloc_extent(phba
,
5788 LPFC_RSC_TYPE_FCOE_RPI
);
5793 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5797 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5801 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5805 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5808 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5813 * The port does not support resource extents. The XRI, VPI,
5814 * VFI, RPI resource ids were determined from READ_CONFIG.
5815 * Just allocate the bitmasks and provision the resource id
5816 * arrays. If a port reset is active, the resources don't
5817 * need any action - just exit.
5819 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5820 LPFC_IDX_RSRC_RDY
) {
5821 lpfc_sli4_dealloc_resource_identifiers(phba
);
5822 lpfc_sli4_remove_rpis(phba
);
5825 count
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5827 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5828 "3279 Invalid provisioning of "
5833 base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5834 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5835 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5836 sizeof(unsigned long),
5838 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5842 phba
->sli4_hba
.rpi_ids
= kzalloc(count
*
5845 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5847 goto free_rpi_bmask
;
5850 for (i
= 0; i
< count
; i
++)
5851 phba
->sli4_hba
.rpi_ids
[i
] = base
+ i
;
5854 count
= phba
->sli4_hba
.max_cfg_param
.max_vpi
;
5856 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5857 "3280 Invalid provisioning of "
5862 base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5863 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5864 phba
->vpi_bmask
= kzalloc(longs
*
5865 sizeof(unsigned long),
5867 if (unlikely(!phba
->vpi_bmask
)) {
5871 phba
->vpi_ids
= kzalloc(count
*
5874 if (unlikely(!phba
->vpi_ids
)) {
5876 goto free_vpi_bmask
;
5879 for (i
= 0; i
< count
; i
++)
5880 phba
->vpi_ids
[i
] = base
+ i
;
5883 count
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
5885 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5886 "3281 Invalid provisioning of "
5891 base
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5892 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5893 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5894 sizeof(unsigned long),
5896 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5900 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5901 phba
->sli4_hba
.xri_ids
= kzalloc(count
*
5904 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5906 goto free_xri_bmask
;
5909 for (i
= 0; i
< count
; i
++)
5910 phba
->sli4_hba
.xri_ids
[i
] = base
+ i
;
5913 count
= phba
->sli4_hba
.max_cfg_param
.max_vfi
;
5915 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5916 "3282 Invalid provisioning of "
5921 base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5922 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5923 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5924 sizeof(unsigned long),
5926 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5930 phba
->sli4_hba
.vfi_ids
= kzalloc(count
*
5933 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5935 goto free_vfi_bmask
;
5938 for (i
= 0; i
< count
; i
++)
5939 phba
->sli4_hba
.vfi_ids
[i
] = base
+ i
;
5942 * Mark all resources ready. An HBA reset doesn't need
5943 * to reset the initialization.
5945 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5951 kfree(phba
->sli4_hba
.vfi_bmask
);
5953 kfree(phba
->sli4_hba
.xri_ids
);
5955 kfree(phba
->sli4_hba
.xri_bmask
);
5957 kfree(phba
->vpi_ids
);
5959 kfree(phba
->vpi_bmask
);
5961 kfree(phba
->sli4_hba
.rpi_ids
);
5963 kfree(phba
->sli4_hba
.rpi_bmask
);
5969 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5970 * @phba: Pointer to HBA context object.
5972 * This function allocates the number of elements for the specified
5976 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba
*phba
)
5978 if (phba
->sli4_hba
.extents_in_use
) {
5979 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5980 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5981 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5982 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5984 kfree(phba
->vpi_bmask
);
5985 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5986 kfree(phba
->vpi_ids
);
5987 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5988 kfree(phba
->sli4_hba
.xri_bmask
);
5989 kfree(phba
->sli4_hba
.xri_ids
);
5990 kfree(phba
->sli4_hba
.vfi_bmask
);
5991 kfree(phba
->sli4_hba
.vfi_ids
);
5992 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5993 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
6000 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6001 * @phba: Pointer to HBA context object.
6002 * @type: The resource extent type.
6003 * @extnt_count: buffer to hold port extent count response
6004 * @extnt_size: buffer to hold port extent size response.
6006 * This function calls the port to read the host allocated extents
6007 * for a particular type.
6010 lpfc_sli4_get_allocated_extnts(struct lpfc_hba
*phba
, uint16_t type
,
6011 uint16_t *extnt_cnt
, uint16_t *extnt_size
)
6015 uint16_t curr_blks
= 0;
6016 uint32_t req_len
, emb_len
;
6017 uint32_t alloc_len
, mbox_tmo
;
6018 struct list_head
*blk_list_head
;
6019 struct lpfc_rsrc_blks
*rsrc_blk
;
6021 void *virtaddr
= NULL
;
6022 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
6023 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
6024 union lpfc_sli4_cfg_shdr
*shdr
;
6027 case LPFC_RSC_TYPE_FCOE_VPI
:
6028 blk_list_head
= &phba
->lpfc_vpi_blk_list
;
6030 case LPFC_RSC_TYPE_FCOE_XRI
:
6031 blk_list_head
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
6033 case LPFC_RSC_TYPE_FCOE_VFI
:
6034 blk_list_head
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
6036 case LPFC_RSC_TYPE_FCOE_RPI
:
6037 blk_list_head
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
6043 /* Count the number of extents currently allocatd for this type. */
6044 list_for_each_entry(rsrc_blk
, blk_list_head
, list
) {
6045 if (curr_blks
== 0) {
6047 * The GET_ALLOCATED mailbox does not return the size,
6048 * just the count. The size should be just the size
6049 * stored in the current allocated block and all sizes
6050 * for an extent type are the same so set the return
6053 *extnt_size
= rsrc_blk
->rsrc_size
;
6059 * Calculate the size of an embedded mailbox. The uint32_t
6060 * accounts for extents-specific word.
6062 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
6066 * Presume the allocation and response will fit into an embedded
6067 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6069 emb
= LPFC_SLI4_MBX_EMBED
;
6071 if (req_len
> emb_len
) {
6072 req_len
= curr_blks
* sizeof(uint16_t) +
6073 sizeof(union lpfc_sli4_cfg_shdr
) +
6075 emb
= LPFC_SLI4_MBX_NEMBED
;
6078 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6081 memset(mbox
, 0, sizeof(LPFC_MBOXQ_t
));
6083 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6084 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT
,
6086 if (alloc_len
< req_len
) {
6087 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6088 "2983 Allocated DMA memory size (x%x) is "
6089 "less than the requested DMA memory "
6090 "size (x%x)\n", alloc_len
, req_len
);
6094 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, curr_blks
, type
, emb
);
6100 if (!phba
->sli4_hba
.intr_enable
)
6101 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
6103 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
6104 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
6113 * Figure out where the response is located. Then get local pointers
6114 * to the response data. The port does not guarantee to respond to
6115 * all extents counts request so update the local variable with the
6116 * allocated count from the port.
6118 if (emb
== LPFC_SLI4_MBX_EMBED
) {
6119 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
6120 shdr
= &rsrc_ext
->header
.cfg_shdr
;
6121 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
6123 virtaddr
= mbox
->sge_array
->addr
[0];
6124 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
6125 shdr
= &n_rsrc
->cfg_shdr
;
6126 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
6129 if (bf_get(lpfc_mbox_hdr_status
, &shdr
->response
)) {
6130 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
6131 "2984 Failed to read allocated resources "
6132 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6134 bf_get(lpfc_mbox_hdr_status
, &shdr
->response
),
6135 bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
));
6140 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
6145 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6146 * @phba: pointer to lpfc hba data structure.
6148 * This routine walks the list of els buffers that have been allocated and
6149 * repost them to the port by using SGL block post. This is needed after a
6150 * pci_function_reset/warm_start or start. It attempts to construct blocks
6151 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6152 * SGL block post mailbox commands to post them to the port. For single els
6153 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6154 * mailbox command for posting.
6156 * Returns: 0 = success, non-zero failure.
6159 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba
*phba
)
6161 struct lpfc_sglq
*sglq_entry
= NULL
;
6162 struct lpfc_sglq
*sglq_entry_next
= NULL
;
6163 struct lpfc_sglq
*sglq_entry_first
= NULL
;
6164 int status
, total_cnt
, post_cnt
= 0, num_posted
= 0, block_cnt
= 0;
6165 int last_xritag
= NO_XRI
;
6166 struct lpfc_sli_ring
*pring
;
6167 LIST_HEAD(prep_sgl_list
);
6168 LIST_HEAD(blck_sgl_list
);
6169 LIST_HEAD(allc_sgl_list
);
6170 LIST_HEAD(post_sgl_list
);
6171 LIST_HEAD(free_sgl_list
);
6173 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6174 spin_lock_irq(&phba
->hbalock
);
6175 spin_lock(&pring
->ring_lock
);
6176 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &allc_sgl_list
);
6177 spin_unlock(&pring
->ring_lock
);
6178 spin_unlock_irq(&phba
->hbalock
);
6180 total_cnt
= phba
->sli4_hba
.els_xri_cnt
;
6181 list_for_each_entry_safe(sglq_entry
, sglq_entry_next
,
6182 &allc_sgl_list
, list
) {
6183 list_del_init(&sglq_entry
->list
);
6185 if ((last_xritag
!= NO_XRI
) &&
6186 (sglq_entry
->sli4_xritag
!= last_xritag
+ 1)) {
6187 /* a hole in xri block, form a sgl posting block */
6188 list_splice_init(&prep_sgl_list
, &blck_sgl_list
);
6189 post_cnt
= block_cnt
- 1;
6190 /* prepare list for next posting block */
6191 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6194 /* prepare list for next posting block */
6195 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6196 /* enough sgls for non-embed sgl mbox command */
6197 if (block_cnt
== LPFC_NEMBED_MBOX_SGL_CNT
) {
6198 list_splice_init(&prep_sgl_list
,
6200 post_cnt
= block_cnt
;
6206 /* keep track of last sgl's xritag */
6207 last_xritag
= sglq_entry
->sli4_xritag
;
6209 /* end of repost sgl list condition for els buffers */
6210 if (num_posted
== phba
->sli4_hba
.els_xri_cnt
) {
6211 if (post_cnt
== 0) {
6212 list_splice_init(&prep_sgl_list
,
6214 post_cnt
= block_cnt
;
6215 } else if (block_cnt
== 1) {
6216 status
= lpfc_sli4_post_sgl(phba
,
6217 sglq_entry
->phys
, 0,
6218 sglq_entry
->sli4_xritag
);
6220 /* successful, put sgl to posted list */
6221 list_add_tail(&sglq_entry
->list
,
6224 /* Failure, put sgl to free list */
6225 lpfc_printf_log(phba
, KERN_WARNING
,
6227 "3159 Failed to post els "
6228 "sgl, xritag:x%x\n",
6229 sglq_entry
->sli4_xritag
);
6230 list_add_tail(&sglq_entry
->list
,
6237 /* continue until a nembed page worth of sgls */
6241 /* post the els buffer list sgls as a block */
6242 status
= lpfc_sli4_post_els_sgl_list(phba
, &blck_sgl_list
,
6246 /* success, put sgl list to posted sgl list */
6247 list_splice_init(&blck_sgl_list
, &post_sgl_list
);
6249 /* Failure, put sgl list to free sgl list */
6250 sglq_entry_first
= list_first_entry(&blck_sgl_list
,
6253 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
6254 "3160 Failed to post els sgl-list, "
6256 sglq_entry_first
->sli4_xritag
,
6257 (sglq_entry_first
->sli4_xritag
+
6259 list_splice_init(&blck_sgl_list
, &free_sgl_list
);
6260 total_cnt
-= post_cnt
;
6263 /* don't reset xirtag due to hole in xri block */
6265 last_xritag
= NO_XRI
;
6267 /* reset els sgl post count for next round of posting */
6270 /* update the number of XRIs posted for ELS */
6271 phba
->sli4_hba
.els_xri_cnt
= total_cnt
;
6273 /* free the els sgls failed to post */
6274 lpfc_free_sgl_list(phba
, &free_sgl_list
);
6276 /* push els sgls posted to the availble list */
6277 if (!list_empty(&post_sgl_list
)) {
6278 spin_lock_irq(&phba
->hbalock
);
6279 spin_lock(&pring
->ring_lock
);
6280 list_splice_init(&post_sgl_list
,
6281 &phba
->sli4_hba
.lpfc_sgl_list
);
6282 spin_unlock(&pring
->ring_lock
);
6283 spin_unlock_irq(&phba
->hbalock
);
6285 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6286 "3161 Failure to post els sgl to port.\n");
6293 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6294 * @phba: Pointer to HBA context object.
6296 * This function is the main SLI4 device intialization PCI function. This
6297 * function is called by the HBA intialization code, HBA reset code and
6298 * HBA error attention handler code. Caller is not required to hold any
6302 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
6305 LPFC_MBOXQ_t
*mboxq
;
6306 struct lpfc_mqe
*mqe
;
6309 uint32_t ftr_rsp
= 0;
6310 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
6311 struct lpfc_vport
*vport
= phba
->pport
;
6312 struct lpfc_dmabuf
*mp
;
6314 /* Perform a PCI function reset to start from clean */
6315 rc
= lpfc_pci_function_reset(phba
);
6319 /* Check the HBA Host Status Register for readyness */
6320 rc
= lpfc_sli4_post_status_check(phba
);
6324 spin_lock_irq(&phba
->hbalock
);
6325 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
6326 spin_unlock_irq(&phba
->hbalock
);
6330 * Allocate a single mailbox container for initializing the
6333 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6337 /* Issue READ_REV to collect vpd and FW information. */
6338 vpd_size
= SLI4_PAGE_SIZE
;
6339 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
6345 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
6351 mqe
= &mboxq
->u
.mqe
;
6352 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
6353 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
)) {
6354 phba
->hba_flag
|= HBA_FCOE_MODE
;
6355 phba
->fcp_embed_io
= 0; /* SLI4 FC support only */
6357 phba
->hba_flag
&= ~HBA_FCOE_MODE
;
6360 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
6362 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
6364 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
6366 phba
->hba_flag
&= ~HBA_FCP_IOQ_FLUSH
;
6368 if (phba
->sli_rev
!= LPFC_SLI_REV4
) {
6369 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6370 "0376 READ_REV Error. SLI Level %d "
6371 "FCoE enabled %d\n",
6372 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_MODE
);
6379 * Continue initialization with default values even if driver failed
6380 * to read FCoE param config regions, only read parameters if the
6383 if (phba
->hba_flag
& HBA_FCOE_MODE
&&
6384 lpfc_sli4_read_fcoe_params(phba
))
6385 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_INIT
,
6386 "2570 Failed to read FCoE parameters\n");
6389 * Retrieve sli4 device physical port name, failure of doing it
6390 * is considered as non-fatal.
6392 rc
= lpfc_sli4_retrieve_pport_name(phba
);
6394 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6395 "3080 Successful retrieving SLI4 device "
6396 "physical port name: %s.\n", phba
->Port
);
6399 * Evaluate the read rev and vpd data. Populate the driver
6400 * state with the results. If this routine fails, the failure
6401 * is not fatal as the driver will use generic values.
6403 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
6404 if (unlikely(!rc
)) {
6405 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6406 "0377 Error %d parsing vpd. "
6407 "Using defaults.\n", rc
);
6412 /* Save information as VPD data */
6413 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
6414 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
6415 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
6416 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
6418 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
6420 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
6422 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
6424 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6425 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
6426 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
6427 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
6428 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6429 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
6430 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6431 "(%d):0380 READ_REV Status x%x "
6432 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6433 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
6434 bf_get(lpfc_mqe_status
, mqe
),
6435 phba
->vpd
.rev
.opFwName
,
6436 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
6437 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
6439 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6440 rc
= (phba
->sli4_hba
.max_cfg_param
.max_xri
>> 3);
6441 if (phba
->pport
->cfg_lun_queue_depth
> rc
) {
6442 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6443 "3362 LUN queue depth changed from %d to %d\n",
6444 phba
->pport
->cfg_lun_queue_depth
, rc
);
6445 phba
->pport
->cfg_lun_queue_depth
= rc
;
6448 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
6449 LPFC_SLI_INTF_IF_TYPE_0
) {
6450 lpfc_set_features(phba
, mboxq
, LPFC_SET_UE_RECOVERY
);
6451 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6452 if (rc
== MBX_SUCCESS
) {
6453 phba
->hba_flag
|= HBA_RECOVERABLE_UE
;
6454 /* Set 1Sec interval to detect UE */
6455 phba
->eratt_poll_interval
= 1;
6456 phba
->sli4_hba
.ue_to_sr
= bf_get(
6457 lpfc_mbx_set_feature_UESR
,
6458 &mboxq
->u
.mqe
.un
.set_feature
);
6459 phba
->sli4_hba
.ue_to_rp
= bf_get(
6460 lpfc_mbx_set_feature_UERP
,
6461 &mboxq
->u
.mqe
.un
.set_feature
);
6465 if (phba
->cfg_enable_mds_diags
&& phba
->mds_diags_support
) {
6466 /* Enable MDS Diagnostics only if the SLI Port supports it */
6467 lpfc_set_features(phba
, mboxq
, LPFC_SET_MDS_DIAGS
);
6468 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6469 if (rc
!= MBX_SUCCESS
)
6470 phba
->mds_diags_support
= 0;
6474 * Discover the port's supported feature set and match it against the
6477 lpfc_request_features(phba
, mboxq
);
6478 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6485 * The port must support FCP initiator mode as this is the
6486 * only mode running in the host.
6488 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
6489 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6490 "0378 No support for fcpi mode.\n");
6493 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh
, &mqe
->un
.req_ftrs
))
6494 phba
->sli3_options
|= LPFC_SLI4_PERFH_ENABLED
;
6496 phba
->sli3_options
&= ~LPFC_SLI4_PERFH_ENABLED
;
6498 * If the port cannot support the host's requested features
6499 * then turn off the global config parameters to disable the
6500 * feature in the driver. This is not a fatal error.
6502 phba
->sli3_options
&= ~LPFC_SLI3_BG_ENABLED
;
6503 if (phba
->cfg_enable_bg
) {
6504 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
))
6505 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
6510 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
6511 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6515 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6516 "0379 Feature Mismatch Data: x%08x %08x "
6517 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
6518 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
6519 phba
->cfg_enable_npiv
, phba
->max_vpi
);
6520 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
6521 phba
->cfg_enable_bg
= 0;
6522 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6523 phba
->cfg_enable_npiv
= 0;
6526 /* These SLI3 features are assumed in SLI4 */
6527 spin_lock_irq(&phba
->hbalock
);
6528 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
6529 spin_unlock_irq(&phba
->hbalock
);
6532 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6533 * calls depends on these resources to complete port setup.
6535 rc
= lpfc_sli4_alloc_resource_identifiers(phba
);
6537 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6538 "2920 Failed to alloc Resource IDs "
6543 /* Read the port's service parameters. */
6544 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
6546 phba
->link_state
= LPFC_HBA_ERROR
;
6551 mboxq
->vport
= vport
;
6552 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6553 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
6554 if (rc
== MBX_SUCCESS
) {
6555 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
6560 * This memory was allocated by the lpfc_read_sparam routine. Release
6561 * it to the mbuf pool.
6563 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
6565 mboxq
->context1
= NULL
;
6567 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6568 "0382 READ_SPARAM command failed "
6569 "status %d, mbxStatus x%x\n",
6570 rc
, bf_get(lpfc_mqe_status
, mqe
));
6571 phba
->link_state
= LPFC_HBA_ERROR
;
6576 lpfc_update_vport_wwn(vport
);
6578 /* Update the fc_host data structures with new wwn. */
6579 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
6580 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
6582 /* update host els and scsi xri-sgl sizes and mappings */
6583 rc
= lpfc_sli4_xri_sgl_update(phba
);
6585 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6586 "1400 Failed to update xri-sgl size and "
6587 "mapping: %d\n", rc
);
6591 /* register the els sgl pool to the port */
6592 rc
= lpfc_sli4_repost_els_sgl_list(phba
);
6594 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6595 "0582 Error %d during els sgl post "
6601 /* register the allocated scsi sgl pool to the port */
6602 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
6604 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6605 "0383 Error %d during scsi sgl post "
6607 /* Some Scsi buffers were moved to the abort scsi list */
6608 /* A pci function reset will repost them */
6613 /* Post the rpi header region to the device. */
6614 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
6616 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6617 "0393 Error %d during rpi post operation\n",
6622 lpfc_sli4_node_prep(phba
);
6624 /* Create all the SLI4 queues */
6625 rc
= lpfc_sli4_queue_create(phba
);
6627 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6628 "3089 Failed to allocate queues\n");
6630 goto out_stop_timers
;
6632 /* Set up all the queues to the device */
6633 rc
= lpfc_sli4_queue_setup(phba
);
6635 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6636 "0381 Error %d during queue setup.\n ", rc
);
6637 goto out_destroy_queue
;
6640 /* Arm the CQs and then EQs on device */
6641 lpfc_sli4_arm_cqeq_intr(phba
);
6643 /* Indicate device interrupt mode */
6644 phba
->sli4_hba
.intr_enable
= 1;
6646 /* Allow asynchronous mailbox command to go through */
6647 spin_lock_irq(&phba
->hbalock
);
6648 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
6649 spin_unlock_irq(&phba
->hbalock
);
6651 /* Post receive buffers to the device */
6652 lpfc_sli4_rb_setup(phba
);
6654 /* Reset HBA FCF states after HBA reset */
6655 phba
->fcf
.fcf_flag
= 0;
6656 phba
->fcf
.current_rec
.flag
= 0;
6658 /* Start the ELS watchdog timer */
6659 mod_timer(&vport
->els_tmofunc
,
6660 jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
* 2)));
6662 /* Start heart beat timer */
6663 mod_timer(&phba
->hb_tmofunc
,
6664 jiffies
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
6665 phba
->hb_outstanding
= 0;
6666 phba
->last_completion_time
= jiffies
;
6668 /* Start error attention (ERATT) polling timer */
6669 mod_timer(&phba
->eratt_poll
,
6670 jiffies
+ msecs_to_jiffies(1000 * phba
->eratt_poll_interval
));
6672 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6673 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
6674 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
6676 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6677 "2829 This device supports "
6678 "Advanced Error Reporting (AER)\n");
6679 spin_lock_irq(&phba
->hbalock
);
6680 phba
->hba_flag
|= HBA_AER_ENABLED
;
6681 spin_unlock_irq(&phba
->hbalock
);
6683 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6684 "2830 This device does not support "
6685 "Advanced Error Reporting (AER)\n");
6686 phba
->cfg_aer_support
= 0;
6691 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
6693 * The FC Port needs to register FCFI (index 0)
6695 lpfc_reg_fcfi(phba
, mboxq
);
6696 mboxq
->vport
= phba
->pport
;
6697 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6698 if (rc
!= MBX_SUCCESS
)
6699 goto out_unset_queue
;
6701 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
,
6702 &mboxq
->u
.mqe
.un
.reg_fcfi
);
6704 /* Check if the port is configured to be disabled */
6705 lpfc_sli_read_link_ste(phba
);
6709 * The port is ready, set the host's link state to LINK_DOWN
6710 * in preparation for link interrupts.
6712 spin_lock_irq(&phba
->hbalock
);
6713 phba
->link_state
= LPFC_LINK_DOWN
;
6714 spin_unlock_irq(&phba
->hbalock
);
6715 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) &&
6716 (phba
->hba_flag
& LINK_DISABLED
)) {
6717 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6718 "3103 Adapter Link is disabled.\n");
6719 lpfc_down_link(phba
, mboxq
);
6720 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6721 if (rc
!= MBX_SUCCESS
) {
6722 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6723 "3104 Adapter failed to issue "
6724 "DOWN_LINK mbox cmd, rc:x%x\n", rc
);
6725 goto out_unset_queue
;
6727 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
6728 /* don't perform init_link on SLI4 FC port loopback test */
6729 if (!(phba
->link_flag
& LS_LOOPBACK_MODE
)) {
6730 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
6732 goto out_unset_queue
;
6735 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6738 /* Unset all the queues set up in this routine when error out */
6739 lpfc_sli4_queue_unset(phba
);
6741 lpfc_sli4_queue_destroy(phba
);
6743 lpfc_stop_hba_timers(phba
);
6745 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6750 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6751 * @ptr: context object - pointer to hba structure.
6753 * This is the callback function for mailbox timer. The mailbox
6754 * timer is armed when a new mailbox command is issued and the timer
6755 * is deleted when the mailbox complete. The function is called by
6756 * the kernel timer code when a mailbox does not complete within
6757 * expected time. This function wakes up the worker thread to
6758 * process the mailbox timeout and returns. All the processing is
6759 * done by the worker thread function lpfc_mbox_timeout_handler.
6762 lpfc_mbox_timeout(unsigned long ptr
)
6764 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
6765 unsigned long iflag
;
6766 uint32_t tmo_posted
;
6768 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
6769 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
6771 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
6772 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
6775 lpfc_worker_wake_up(phba
);
6780 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6782 * @phba: Pointer to HBA context object.
6784 * This function checks if any mailbox completions are present on the mailbox
6788 lpfc_sli4_mbox_completions_pending(struct lpfc_hba
*phba
)
6792 struct lpfc_queue
*mcq
;
6793 struct lpfc_mcqe
*mcqe
;
6794 bool pending_completions
= false;
6796 if (unlikely(!phba
) || (phba
->sli_rev
!= LPFC_SLI_REV4
))
6799 /* Check for completions on mailbox completion queue */
6801 mcq
= phba
->sli4_hba
.mbx_cq
;
6802 idx
= mcq
->hba_index
;
6803 while (bf_get_le32(lpfc_cqe_valid
, mcq
->qe
[idx
].cqe
)) {
6804 mcqe
= (struct lpfc_mcqe
*)mcq
->qe
[idx
].cqe
;
6805 if (bf_get_le32(lpfc_trailer_completed
, mcqe
) &&
6806 (!bf_get_le32(lpfc_trailer_async
, mcqe
))) {
6807 pending_completions
= true;
6810 idx
= (idx
+ 1) % mcq
->entry_count
;
6811 if (mcq
->hba_index
== idx
)
6814 return pending_completions
;
6819 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6821 * @phba: Pointer to HBA context object.
6823 * For sli4, it is possible to miss an interrupt. As such mbox completions
6824 * maybe missed causing erroneous mailbox timeouts to occur. This function
6825 * checks to see if mbox completions are on the mailbox completion queue
6826 * and will process all the completions associated with the eq for the
6827 * mailbox completion queue.
6830 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba
*phba
)
6834 struct lpfc_queue
*fpeq
= NULL
;
6835 struct lpfc_eqe
*eqe
;
6838 if (unlikely(!phba
) || (phba
->sli_rev
!= LPFC_SLI_REV4
))
6841 /* Find the eq associated with the mcq */
6843 if (phba
->sli4_hba
.hba_eq
)
6844 for (eqidx
= 0; eqidx
< phba
->cfg_fcp_io_channel
; eqidx
++)
6845 if (phba
->sli4_hba
.hba_eq
[eqidx
]->queue_id
==
6846 phba
->sli4_hba
.mbx_cq
->assoc_qid
) {
6847 fpeq
= phba
->sli4_hba
.hba_eq
[eqidx
];
6853 /* Turn off interrupts from this EQ */
6855 lpfc_sli4_eq_clr_intr(fpeq
);
6857 /* Check to see if a mbox completion is pending */
6859 mbox_pending
= lpfc_sli4_mbox_completions_pending(phba
);
6862 * If a mbox completion is pending, process all the events on EQ
6863 * associated with the mbox completion queue (this could include
6864 * mailbox commands, async events, els commands, receive queue data
6869 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
6870 lpfc_sli4_hba_handle_eqe(phba
, eqe
, eqidx
);
6871 fpeq
->EQ_processed
++;
6874 /* Always clear and re-arm the EQ */
6876 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
6878 return mbox_pending
;
6883 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6884 * @phba: Pointer to HBA context object.
6886 * This function is called from worker thread when a mailbox command times out.
6887 * The caller is not required to hold any locks. This function will reset the
6888 * HBA and recover all the pending commands.
6891 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
6893 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
6894 MAILBOX_t
*mb
= NULL
;
6896 struct lpfc_sli
*psli
= &phba
->sli
;
6898 /* If the mailbox completed, process the completion and return */
6899 if (lpfc_sli4_process_missed_mbox_completions(phba
))
6904 /* Check the pmbox pointer first. There is a race condition
6905 * between the mbox timeout handler getting executed in the
6906 * worklist and the mailbox actually completing. When this
6907 * race condition occurs, the mbox_active will be NULL.
6909 spin_lock_irq(&phba
->hbalock
);
6910 if (pmbox
== NULL
) {
6911 lpfc_printf_log(phba
, KERN_WARNING
,
6913 "0353 Active Mailbox cleared - mailbox timeout "
6915 spin_unlock_irq(&phba
->hbalock
);
6919 /* Mbox cmd <mbxCommand> timeout */
6920 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6921 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6923 phba
->pport
->port_state
,
6925 phba
->sli
.mbox_active
);
6926 spin_unlock_irq(&phba
->hbalock
);
6928 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6929 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6930 * it to fail all outstanding SCSI IO.
6932 spin_lock_irq(&phba
->pport
->work_port_lock
);
6933 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6934 spin_unlock_irq(&phba
->pport
->work_port_lock
);
6935 spin_lock_irq(&phba
->hbalock
);
6936 phba
->link_state
= LPFC_LINK_UNKNOWN
;
6937 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
6938 spin_unlock_irq(&phba
->hbalock
);
6940 lpfc_sli_abort_fcp_rings(phba
);
6942 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6943 "0345 Resetting board due to mailbox timeout\n");
6945 /* Reset the HBA device */
6946 lpfc_reset_hba(phba
);
6950 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6951 * @phba: Pointer to HBA context object.
6952 * @pmbox: Pointer to mailbox object.
6953 * @flag: Flag indicating how the mailbox need to be processed.
6955 * This function is called by discovery code and HBA management code
6956 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6957 * function gets the hbalock to protect the data structures.
6958 * The mailbox command can be submitted in polling mode, in which case
6959 * this function will wait in a polling loop for the completion of the
6961 * If the mailbox is submitted in no_wait mode (not polling) the
6962 * function will submit the command and returns immediately without waiting
6963 * for the mailbox completion. The no_wait is supported only when HBA
6964 * is in SLI2/SLI3 mode - interrupts are enabled.
6965 * The SLI interface allows only one mailbox pending at a time. If the
6966 * mailbox is issued in polling mode and there is already a mailbox
6967 * pending, then the function will return an error. If the mailbox is issued
6968 * in NO_WAIT mode and there is a mailbox pending already, the function
6969 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
6970 * The sli layer owns the mailbox object until the completion of mailbox
6971 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
6972 * return codes the caller owns the mailbox command after the return of
6976 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
6980 struct lpfc_sli
*psli
= &phba
->sli
;
6981 uint32_t status
, evtctr
;
6982 uint32_t ha_copy
, hc_copy
;
6984 unsigned long timeout
;
6985 unsigned long drvr_flag
= 0;
6986 uint32_t word0
, ldata
;
6987 void __iomem
*to_slim
;
6988 int processing_queue
= 0;
6990 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
6992 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
6993 /* processing mbox queue from intr_handler */
6994 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
6995 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
6998 processing_queue
= 1;
6999 pmbox
= lpfc_mbox_get(phba
);
7001 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7006 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
7007 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
7009 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7010 lpfc_printf_log(phba
, KERN_ERR
,
7011 LOG_MBOX
| LOG_VPORT
,
7012 "1806 Mbox x%x failed. No vport\n",
7013 pmbox
->u
.mb
.mbxCommand
);
7015 goto out_not_finished
;
7019 /* If the PCI channel is in offline state, do not post mbox. */
7020 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
7021 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7022 goto out_not_finished
;
7025 /* If HBA has a deferred error attention, fail the iocb. */
7026 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
7027 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7028 goto out_not_finished
;
7034 status
= MBX_SUCCESS
;
7036 if (phba
->link_state
== LPFC_HBA_ERROR
) {
7037 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7039 /* Mbox command <mbxCommand> cannot issue */
7040 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7041 "(%d):0311 Mailbox command x%x cannot "
7042 "issue Data: x%x x%x\n",
7043 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7044 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
7045 goto out_not_finished
;
7048 if (mbx
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
) {
7049 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
) ||
7050 !(hc_copy
& HC_MBINT_ENA
)) {
7051 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7052 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7053 "(%d):2528 Mailbox command x%x cannot "
7054 "issue Data: x%x x%x\n",
7055 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7056 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
7057 goto out_not_finished
;
7061 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7062 /* Polling for a mbox command when another one is already active
7063 * is not allowed in SLI. Also, the driver must have established
7064 * SLI2 mode to queue and process multiple mbox commands.
7067 if (flag
& MBX_POLL
) {
7068 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7070 /* Mbox command <mbxCommand> cannot issue */
7071 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7072 "(%d):2529 Mailbox command x%x "
7073 "cannot issue Data: x%x x%x\n",
7074 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7075 pmbox
->u
.mb
.mbxCommand
,
7076 psli
->sli_flag
, flag
);
7077 goto out_not_finished
;
7080 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
7081 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7082 /* Mbox command <mbxCommand> cannot issue */
7083 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7084 "(%d):2530 Mailbox command x%x "
7085 "cannot issue Data: x%x x%x\n",
7086 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7087 pmbox
->u
.mb
.mbxCommand
,
7088 psli
->sli_flag
, flag
);
7089 goto out_not_finished
;
7092 /* Another mailbox command is still being processed, queue this
7093 * command to be processed later.
7095 lpfc_mbox_put(phba
, pmbox
);
7097 /* Mbox cmd issue - BUSY */
7098 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7099 "(%d):0308 Mbox cmd issue - BUSY Data: "
7100 "x%x x%x x%x x%x\n",
7101 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
7102 mbx
->mbxCommand
, phba
->pport
->port_state
,
7103 psli
->sli_flag
, flag
);
7105 psli
->slistat
.mbox_busy
++;
7106 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7109 lpfc_debugfs_disc_trc(pmbox
->vport
,
7110 LPFC_DISC_TRC_MBOX_VPORT
,
7111 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7112 (uint32_t)mbx
->mbxCommand
,
7113 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7116 lpfc_debugfs_disc_trc(phba
->pport
,
7118 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7119 (uint32_t)mbx
->mbxCommand
,
7120 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7126 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7128 /* If we are not polling, we MUST be in SLI2 mode */
7129 if (flag
!= MBX_POLL
) {
7130 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
7131 (mbx
->mbxCommand
!= MBX_KILL_BOARD
)) {
7132 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7133 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7134 /* Mbox command <mbxCommand> cannot issue */
7135 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7136 "(%d):2531 Mailbox command x%x "
7137 "cannot issue Data: x%x x%x\n",
7138 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7139 pmbox
->u
.mb
.mbxCommand
,
7140 psli
->sli_flag
, flag
);
7141 goto out_not_finished
;
7143 /* timeout active mbox command */
7144 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
7146 mod_timer(&psli
->mbox_tmo
, jiffies
+ timeout
);
7149 /* Mailbox cmd <cmd> issue */
7150 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7151 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7153 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7154 mbx
->mbxCommand
, phba
->pport
->port_state
,
7155 psli
->sli_flag
, flag
);
7157 if (mbx
->mbxCommand
!= MBX_HEARTBEAT
) {
7159 lpfc_debugfs_disc_trc(pmbox
->vport
,
7160 LPFC_DISC_TRC_MBOX_VPORT
,
7161 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7162 (uint32_t)mbx
->mbxCommand
,
7163 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7166 lpfc_debugfs_disc_trc(phba
->pport
,
7168 "MBOX Send: cmd:x%x mb:x%x x%x",
7169 (uint32_t)mbx
->mbxCommand
,
7170 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7174 psli
->slistat
.mbox_cmd
++;
7175 evtctr
= psli
->slistat
.mbox_event
;
7177 /* next set own bit for the adapter and copy over command word */
7178 mbx
->mbxOwner
= OWN_CHIP
;
7180 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7181 /* Populate mbox extension offset word. */
7182 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
7183 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
7184 = (uint8_t *)phba
->mbox_ext
7185 - (uint8_t *)phba
->mbox
;
7188 /* Copy the mailbox extension data */
7189 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
7190 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
7191 (uint8_t *)phba
->mbox_ext
,
7192 pmbox
->in_ext_byte_len
);
7194 /* Copy command data to host SLIM area */
7195 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
7197 /* Populate mbox extension offset word. */
7198 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
7199 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
7200 = MAILBOX_HBA_EXT_OFFSET
;
7202 /* Copy the mailbox extension data */
7203 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
7204 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
7205 MAILBOX_HBA_EXT_OFFSET
,
7206 pmbox
->context2
, pmbox
->in_ext_byte_len
);
7209 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7210 /* copy command data into host mbox for cmpl */
7211 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
7214 /* First copy mbox command data to HBA SLIM, skip past first
7216 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
7217 lpfc_memcpy_to_slim(to_slim
, &mbx
->un
.varWords
[0],
7218 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
7220 /* Next copy over first word, with mbxOwner set */
7221 ldata
= *((uint32_t *)mbx
);
7222 to_slim
= phba
->MBslimaddr
;
7223 writel(ldata
, to_slim
);
7224 readl(to_slim
); /* flush */
7226 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7227 /* switch over to host mailbox */
7228 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
7236 /* Set up reference to mailbox command */
7237 psli
->mbox_active
= pmbox
;
7238 /* Interrupt board to do it */
7239 writel(CA_MBATT
, phba
->CAregaddr
);
7240 readl(phba
->CAregaddr
); /* flush */
7241 /* Don't wait for it to finish, just return */
7245 /* Set up null reference to mailbox command */
7246 psli
->mbox_active
= NULL
;
7247 /* Interrupt board to do it */
7248 writel(CA_MBATT
, phba
->CAregaddr
);
7249 readl(phba
->CAregaddr
); /* flush */
7251 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7252 /* First read mbox status word */
7253 word0
= *((uint32_t *)phba
->mbox
);
7254 word0
= le32_to_cpu(word0
);
7256 /* First read mbox status word */
7257 if (lpfc_readl(phba
->MBslimaddr
, &word0
)) {
7258 spin_unlock_irqrestore(&phba
->hbalock
,
7260 goto out_not_finished
;
7264 /* Read the HBA Host Attention Register */
7265 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
7266 spin_unlock_irqrestore(&phba
->hbalock
,
7268 goto out_not_finished
;
7270 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
7273 /* Wait for command to complete */
7274 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
7275 (!(ha_copy
& HA_MBATT
) &&
7276 (phba
->link_state
> LPFC_WARM_START
))) {
7277 if (time_after(jiffies
, timeout
)) {
7278 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7279 spin_unlock_irqrestore(&phba
->hbalock
,
7281 goto out_not_finished
;
7284 /* Check if we took a mbox interrupt while we were
7286 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
7287 && (evtctr
!= psli
->slistat
.mbox_event
))
7291 spin_unlock_irqrestore(&phba
->hbalock
,
7294 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
7297 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7298 /* First copy command data */
7299 word0
= *((uint32_t *)phba
->mbox
);
7300 word0
= le32_to_cpu(word0
);
7301 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7304 /* Check real SLIM for any errors */
7305 slimword0
= readl(phba
->MBslimaddr
);
7306 slimmb
= (MAILBOX_t
*) & slimword0
;
7307 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
7308 && slimmb
->mbxStatus
) {
7315 /* First copy command data */
7316 word0
= readl(phba
->MBslimaddr
);
7318 /* Read the HBA Host Attention Register */
7319 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
7320 spin_unlock_irqrestore(&phba
->hbalock
,
7322 goto out_not_finished
;
7326 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7327 /* copy results back to user */
7328 lpfc_sli_pcimem_bcopy(phba
->mbox
, mbx
, MAILBOX_CMD_SIZE
);
7329 /* Copy the mailbox extension data */
7330 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7331 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
7333 pmbox
->out_ext_byte_len
);
7336 /* First copy command data */
7337 lpfc_memcpy_from_slim(mbx
, phba
->MBslimaddr
,
7339 /* Copy the mailbox extension data */
7340 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7341 lpfc_memcpy_from_slim(pmbox
->context2
,
7343 MAILBOX_HBA_EXT_OFFSET
,
7344 pmbox
->out_ext_byte_len
);
7348 writel(HA_MBATT
, phba
->HAregaddr
);
7349 readl(phba
->HAregaddr
); /* flush */
7351 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7352 status
= mbx
->mbxStatus
;
7355 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7359 if (processing_queue
) {
7360 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7361 lpfc_mbox_cmpl_put(phba
, pmbox
);
7363 return MBX_NOT_FINISHED
;
7367 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7368 * @phba: Pointer to HBA context object.
7370 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7371 * the driver internal pending mailbox queue. It will then try to wait out the
7372 * possible outstanding mailbox command before return.
7375 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7376 * the outstanding mailbox command timed out.
7379 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
7381 struct lpfc_sli
*psli
= &phba
->sli
;
7383 unsigned long timeout
= 0;
7385 /* Mark the asynchronous mailbox command posting as blocked */
7386 spin_lock_irq(&phba
->hbalock
);
7387 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7388 /* Determine how long we might wait for the active mailbox
7389 * command to be gracefully completed by firmware.
7391 if (phba
->sli
.mbox_active
)
7392 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
7393 phba
->sli
.mbox_active
) *
7395 spin_unlock_irq(&phba
->hbalock
);
7397 /* Make sure the mailbox is really active */
7399 lpfc_sli4_process_missed_mbox_completions(phba
);
7401 /* Wait for the outstnading mailbox command to complete */
7402 while (phba
->sli
.mbox_active
) {
7403 /* Check active mailbox complete status every 2ms */
7405 if (time_after(jiffies
, timeout
)) {
7406 /* Timeout, marked the outstanding cmd not complete */
7412 /* Can not cleanly block async mailbox command, fails it */
7414 spin_lock_irq(&phba
->hbalock
);
7415 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7416 spin_unlock_irq(&phba
->hbalock
);
7422 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7423 * @phba: Pointer to HBA context object.
7425 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7426 * commands from the driver internal pending mailbox queue. It makes sure
7427 * that there is no outstanding mailbox command before resuming posting
7428 * asynchronous mailbox commands. If, for any reason, there is outstanding
7429 * mailbox command, it will try to wait it out before resuming asynchronous
7430 * mailbox command posting.
7433 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
7435 struct lpfc_sli
*psli
= &phba
->sli
;
7437 spin_lock_irq(&phba
->hbalock
);
7438 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7439 /* Asynchronous mailbox posting is not blocked, do nothing */
7440 spin_unlock_irq(&phba
->hbalock
);
7444 /* Outstanding synchronous mailbox command is guaranteed to be done,
7445 * successful or timeout, after timing-out the outstanding mailbox
7446 * command shall always be removed, so just unblock posting async
7447 * mailbox command and resume
7449 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7450 spin_unlock_irq(&phba
->hbalock
);
7452 /* wake up worker thread to post asynchronlous mailbox command */
7453 lpfc_worker_wake_up(phba
);
7457 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7458 * @phba: Pointer to HBA context object.
7459 * @mboxq: Pointer to mailbox object.
7461 * The function waits for the bootstrap mailbox register ready bit from
7462 * port for twice the regular mailbox command timeout value.
7464 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7465 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7468 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7471 unsigned long timeout
;
7472 struct lpfc_register bmbx_reg
;
7474 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mboxq
)
7478 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
7479 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
7483 if (time_after(jiffies
, timeout
))
7484 return MBXERR_ERROR
;
7485 } while (!db_ready
);
7491 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7492 * @phba: Pointer to HBA context object.
7493 * @mboxq: Pointer to mailbox object.
7495 * The function posts a mailbox to the port. The mailbox is expected
7496 * to be comletely filled in and ready for the port to operate on it.
7497 * This routine executes a synchronous completion operation on the
7498 * mailbox by polling for its completion.
7500 * The caller must not be holding any locks when calling this routine.
7503 * MBX_SUCCESS - mailbox posted successfully
7504 * Any of the MBX error values.
7507 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7509 int rc
= MBX_SUCCESS
;
7510 unsigned long iflag
;
7511 uint32_t mcqe_status
;
7513 struct lpfc_sli
*psli
= &phba
->sli
;
7514 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
7515 struct lpfc_bmbx_create
*mbox_rgn
;
7516 struct dma_address
*dma_address
;
7519 * Only one mailbox can be active to the bootstrap mailbox region
7520 * at a time and there is no queueing provided.
7522 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7523 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7524 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7525 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7526 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7527 "cannot issue Data: x%x x%x\n",
7528 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7529 mboxq
->u
.mb
.mbxCommand
,
7530 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7531 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7532 psli
->sli_flag
, MBX_POLL
);
7533 return MBXERR_ERROR
;
7535 /* The server grabs the token and owns it until release */
7536 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7537 phba
->sli
.mbox_active
= mboxq
;
7538 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7540 /* wait for bootstrap mbox register for readyness */
7541 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7546 * Initialize the bootstrap memory region to avoid stale data areas
7547 * in the mailbox post. Then copy the caller's mailbox contents to
7548 * the bmbx mailbox region.
7550 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
7551 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
7552 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
7553 sizeof(struct lpfc_mqe
));
7555 /* Post the high mailbox dma address to the port and wait for ready. */
7556 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
7557 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
7559 /* wait for bootstrap mbox register for hi-address write done */
7560 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7564 /* Post the low mailbox dma address to the port. */
7565 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
7567 /* wait for bootstrap mbox register for low address write done */
7568 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7573 * Read the CQ to ensure the mailbox has completed.
7574 * If so, update the mailbox status so that the upper layers
7575 * can complete the request normally.
7577 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
7578 sizeof(struct lpfc_mqe
));
7579 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
7580 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
7581 sizeof(struct lpfc_mcqe
));
7582 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
7584 * When the CQE status indicates a failure and the mailbox status
7585 * indicates success then copy the CQE status into the mailbox status
7586 * (and prefix it with x4000).
7588 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
7589 if (bf_get(lpfc_mqe_status
, mb
) == MBX_SUCCESS
)
7590 bf_set(lpfc_mqe_status
, mb
,
7591 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
7594 lpfc_sli4_swap_str(phba
, mboxq
);
7596 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7597 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7598 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7599 " x%x x%x CQ: x%x x%x x%x x%x\n",
7600 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7601 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7602 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7603 bf_get(lpfc_mqe_status
, mb
),
7604 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
7605 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
7606 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
7607 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
7608 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
7609 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
7610 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
7611 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
7612 mboxq
->mcqe
.trailer
);
7614 /* We are holding the token, no needed for lock when release */
7615 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7616 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7617 phba
->sli
.mbox_active
= NULL
;
7618 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7623 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7624 * @phba: Pointer to HBA context object.
7625 * @pmbox: Pointer to mailbox object.
7626 * @flag: Flag indicating how the mailbox need to be processed.
7628 * This function is called by discovery code and HBA management code to submit
7629 * a mailbox command to firmware with SLI-4 interface spec.
7631 * Return codes the caller owns the mailbox command after the return of the
7635 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
7638 struct lpfc_sli
*psli
= &phba
->sli
;
7639 unsigned long iflags
;
7642 /* dump from issue mailbox command if setup */
7643 lpfc_idiag_mbxacc_dump_issue_mbox(phba
, &mboxq
->u
.mb
);
7645 rc
= lpfc_mbox_dev_check(phba
);
7647 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7648 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7649 "cannot issue Data: x%x x%x\n",
7650 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7651 mboxq
->u
.mb
.mbxCommand
,
7652 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7653 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7654 psli
->sli_flag
, flag
);
7655 goto out_not_finished
;
7658 /* Detect polling mode and jump to a handler */
7659 if (!phba
->sli4_hba
.intr_enable
) {
7660 if (flag
== MBX_POLL
)
7661 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7664 if (rc
!= MBX_SUCCESS
)
7665 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7666 "(%d):2541 Mailbox command x%x "
7667 "(x%x/x%x) failure: "
7668 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7670 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7671 mboxq
->u
.mb
.mbxCommand
,
7672 lpfc_sli_config_mbox_subsys_get(phba
,
7674 lpfc_sli_config_mbox_opcode_get(phba
,
7676 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7677 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7678 bf_get(lpfc_mcqe_ext_status
,
7680 psli
->sli_flag
, flag
);
7682 } else if (flag
== MBX_POLL
) {
7683 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7684 "(%d):2542 Try to issue mailbox command "
7685 "x%x (x%x/x%x) synchronously ahead of async"
7686 "mailbox command queue: x%x x%x\n",
7687 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7688 mboxq
->u
.mb
.mbxCommand
,
7689 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7690 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7691 psli
->sli_flag
, flag
);
7692 /* Try to block the asynchronous mailbox posting */
7693 rc
= lpfc_sli4_async_mbox_block(phba
);
7695 /* Successfully blocked, now issue sync mbox cmd */
7696 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7697 if (rc
!= MBX_SUCCESS
)
7698 lpfc_printf_log(phba
, KERN_WARNING
,
7700 "(%d):2597 Sync Mailbox command "
7701 "x%x (x%x/x%x) failure: "
7702 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7704 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7705 mboxq
->u
.mb
.mbxCommand
,
7706 lpfc_sli_config_mbox_subsys_get(phba
,
7708 lpfc_sli_config_mbox_opcode_get(phba
,
7710 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7711 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7712 bf_get(lpfc_mcqe_ext_status
,
7714 psli
->sli_flag
, flag
);
7715 /* Unblock the async mailbox posting afterward */
7716 lpfc_sli4_async_mbox_unblock(phba
);
7721 /* Now, interrupt mode asynchrous mailbox command */
7722 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
7724 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7725 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7726 "cannot issue Data: x%x x%x\n",
7727 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7728 mboxq
->u
.mb
.mbxCommand
,
7729 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7730 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7731 psli
->sli_flag
, flag
);
7732 goto out_not_finished
;
7735 /* Put the mailbox command to the driver internal FIFO */
7736 psli
->slistat
.mbox_busy
++;
7737 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7738 lpfc_mbox_put(phba
, mboxq
);
7739 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7740 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7741 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7742 "x%x (x%x/x%x) x%x x%x x%x\n",
7743 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
7744 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
7745 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7746 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7747 phba
->pport
->port_state
,
7748 psli
->sli_flag
, MBX_NOWAIT
);
7749 /* Wake up worker thread to transport mailbox command from head */
7750 lpfc_worker_wake_up(phba
);
7755 return MBX_NOT_FINISHED
;
7759 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7760 * @phba: Pointer to HBA context object.
7762 * This function is called by worker thread to send a mailbox command to
7763 * SLI4 HBA firmware.
7767 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
7769 struct lpfc_sli
*psli
= &phba
->sli
;
7770 LPFC_MBOXQ_t
*mboxq
;
7771 int rc
= MBX_SUCCESS
;
7772 unsigned long iflags
;
7773 struct lpfc_mqe
*mqe
;
7776 /* Check interrupt mode before post async mailbox command */
7777 if (unlikely(!phba
->sli4_hba
.intr_enable
))
7778 return MBX_NOT_FINISHED
;
7780 /* Check for mailbox command service token */
7781 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7782 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7783 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7784 return MBX_NOT_FINISHED
;
7786 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7787 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7788 return MBX_NOT_FINISHED
;
7790 if (unlikely(phba
->sli
.mbox_active
)) {
7791 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7792 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7793 "0384 There is pending active mailbox cmd\n");
7794 return MBX_NOT_FINISHED
;
7796 /* Take the mailbox command service token */
7797 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7799 /* Get the next mailbox command from head of queue */
7800 mboxq
= lpfc_mbox_get(phba
);
7802 /* If no more mailbox command waiting for post, we're done */
7804 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7805 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7808 phba
->sli
.mbox_active
= mboxq
;
7809 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7811 /* Check device readiness for posting mailbox command */
7812 rc
= lpfc_mbox_dev_check(phba
);
7814 /* Driver clean routine will clean up pending mailbox */
7815 goto out_not_finished
;
7817 /* Prepare the mbox command to be posted */
7818 mqe
= &mboxq
->u
.mqe
;
7819 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
7821 /* Start timer for the mbox_tmo and log some mailbox post messages */
7822 mod_timer(&psli
->mbox_tmo
, (jiffies
+
7823 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba
, mboxq
))));
7825 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7826 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7828 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7829 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7830 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7831 phba
->pport
->port_state
, psli
->sli_flag
);
7833 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
7835 lpfc_debugfs_disc_trc(mboxq
->vport
,
7836 LPFC_DISC_TRC_MBOX_VPORT
,
7837 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7838 mbx_cmnd
, mqe
->un
.mb_words
[0],
7839 mqe
->un
.mb_words
[1]);
7841 lpfc_debugfs_disc_trc(phba
->pport
,
7843 "MBOX Send: cmd:x%x mb:x%x x%x",
7844 mbx_cmnd
, mqe
->un
.mb_words
[0],
7845 mqe
->un
.mb_words
[1]);
7848 psli
->slistat
.mbox_cmd
++;
7850 /* Post the mailbox command to the port */
7851 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
7852 if (rc
!= MBX_SUCCESS
) {
7853 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7854 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7855 "cannot issue Data: x%x x%x\n",
7856 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7857 mboxq
->u
.mb
.mbxCommand
,
7858 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7859 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7860 psli
->sli_flag
, MBX_NOWAIT
);
7861 goto out_not_finished
;
7867 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7868 if (phba
->sli
.mbox_active
) {
7869 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7870 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7871 /* Release the token */
7872 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7873 phba
->sli
.mbox_active
= NULL
;
7875 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7877 return MBX_NOT_FINISHED
;
7881 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7882 * @phba: Pointer to HBA context object.
7883 * @pmbox: Pointer to mailbox object.
7884 * @flag: Flag indicating how the mailbox need to be processed.
7886 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7887 * the API jump table function pointer from the lpfc_hba struct.
7889 * Return codes the caller owns the mailbox command after the return of the
7893 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
7895 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
7899 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7900 * @phba: The hba struct for which this call is being executed.
7901 * @dev_grp: The HBA PCI-Device group number.
7903 * This routine sets up the mbox interface API function jump table in @phba
7905 * Returns: 0 - success, -ENODEV - failure.
7908 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
7912 case LPFC_PCI_DEV_LP
:
7913 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
7914 phba
->lpfc_sli_handle_slow_ring_event
=
7915 lpfc_sli_handle_slow_ring_event_s3
;
7916 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
7917 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
7918 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
7920 case LPFC_PCI_DEV_OC
:
7921 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
7922 phba
->lpfc_sli_handle_slow_ring_event
=
7923 lpfc_sli_handle_slow_ring_event_s4
;
7924 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
7925 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
7926 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
7929 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7930 "1420 Invalid HBA PCI-device group: 0x%x\n",
7939 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7940 * @phba: Pointer to HBA context object.
7941 * @pring: Pointer to driver SLI ring object.
7942 * @piocb: Pointer to address of newly added command iocb.
7944 * This function is called with hbalock held to add a command
7945 * iocb to the txq when SLI layer cannot submit the command iocb
7949 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7950 struct lpfc_iocbq
*piocb
)
7952 lockdep_assert_held(&phba
->hbalock
);
7953 /* Insert the caller's iocb in the txq tail for later processing. */
7954 list_add_tail(&piocb
->list
, &pring
->txq
);
7958 * lpfc_sli_next_iocb - Get the next iocb in the txq
7959 * @phba: Pointer to HBA context object.
7960 * @pring: Pointer to driver SLI ring object.
7961 * @piocb: Pointer to address of newly added command iocb.
7963 * This function is called with hbalock held before a new
7964 * iocb is submitted to the firmware. This function checks
7965 * txq to flush the iocbs in txq to Firmware before
7966 * submitting new iocbs to the Firmware.
7967 * If there are iocbs in the txq which need to be submitted
7968 * to firmware, lpfc_sli_next_iocb returns the first element
7969 * of the txq after dequeuing it from txq.
7970 * If there is no iocb in the txq then the function will return
7971 * *piocb and *piocb is set to NULL. Caller needs to check
7972 * *piocb to find if there are more commands in the txq.
7974 static struct lpfc_iocbq
*
7975 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7976 struct lpfc_iocbq
**piocb
)
7978 struct lpfc_iocbq
* nextiocb
;
7980 lockdep_assert_held(&phba
->hbalock
);
7982 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
7992 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
7993 * @phba: Pointer to HBA context object.
7994 * @ring_number: SLI ring number to issue iocb on.
7995 * @piocb: Pointer to command iocb.
7996 * @flag: Flag indicating if this command can be put into txq.
7998 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
7999 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8000 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8001 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8002 * this function allows only iocbs for posting buffers. This function finds
8003 * next available slot in the command ring and posts the command to the
8004 * available slot and writes the port attention register to request HBA start
8005 * processing new iocb. If there is no slot available in the ring and
8006 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8007 * the function returns IOCB_BUSY.
8009 * This function is called with hbalock held. The function will return success
8010 * after it successfully submit the iocb to firmware or after adding to the
8014 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
8015 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8017 struct lpfc_iocbq
*nextiocb
;
8019 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
8021 lockdep_assert_held(&phba
->hbalock
);
8023 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
8024 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
8025 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
8026 lpfc_printf_log(phba
, KERN_ERR
,
8027 LOG_SLI
| LOG_VPORT
,
8028 "1807 IOCB x%x failed. No vport\n",
8029 piocb
->iocb
.ulpCommand
);
8035 /* If the PCI channel is in offline state, do not post iocbs. */
8036 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8039 /* If HBA has a deferred error attention, fail the iocb. */
8040 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
8044 * We should never get an IOCB if we are in a < LINK_DOWN state
8046 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8050 * Check to see if we are blocking IOCB processing because of a
8051 * outstanding event.
8053 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
8056 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
8058 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8059 * can be issued if the link is not up.
8061 switch (piocb
->iocb
.ulpCommand
) {
8062 case CMD_GEN_REQUEST64_CR
:
8063 case CMD_GEN_REQUEST64_CX
:
8064 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
8065 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
8066 FC_RCTL_DD_UNSOL_CMD
) ||
8067 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
8068 MENLO_TRANSPORT_TYPE
))
8072 case CMD_QUE_RING_BUF_CN
:
8073 case CMD_QUE_RING_BUF64_CN
:
8075 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8076 * completion, iocb_cmpl MUST be 0.
8078 if (piocb
->iocb_cmpl
)
8079 piocb
->iocb_cmpl
= NULL
;
8081 case CMD_CREATE_XRI_CR
:
8082 case CMD_CLOSE_XRI_CN
:
8083 case CMD_CLOSE_XRI_CX
:
8090 * For FCP commands, we must be in a state where we can process link
8093 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
8094 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
8098 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
8099 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
8100 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
8103 lpfc_sli_update_ring(phba
, pring
);
8105 lpfc_sli_update_full_ring(phba
, pring
);
8108 return IOCB_SUCCESS
;
8113 pring
->stats
.iocb_cmd_delay
++;
8117 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8118 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
8119 return IOCB_SUCCESS
;
8126 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8127 * @phba: Pointer to HBA context object.
8128 * @piocb: Pointer to command iocb.
8129 * @sglq: Pointer to the scatter gather queue object.
8131 * This routine converts the bpl or bde that is in the IOCB
8132 * to a sgl list for the sli4 hardware. The physical address
8133 * of the bpl/bde is converted back to a virtual address.
8134 * If the IOCB contains a BPL then the list of BDE's is
8135 * converted to sli4_sge's. If the IOCB contains a single
8136 * BDE then it is converted to a single sli_sge.
8137 * The IOCB is still in cpu endianess so the contents of
8138 * the bpl can be used without byte swapping.
8140 * Returns valid XRI = Success, NO_XRI = Failure.
8143 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
8144 struct lpfc_sglq
*sglq
)
8146 uint16_t xritag
= NO_XRI
;
8147 struct ulp_bde64
*bpl
= NULL
;
8148 struct ulp_bde64 bde
;
8149 struct sli4_sge
*sgl
= NULL
;
8150 struct lpfc_dmabuf
*dmabuf
;
8154 uint32_t offset
= 0; /* accumulated offset in the sg request list */
8155 int inbound
= 0; /* number of sg reply entries inbound from firmware */
8157 if (!piocbq
|| !sglq
)
8160 sgl
= (struct sli4_sge
*)sglq
->sgl
;
8161 icmd
= &piocbq
->iocb
;
8162 if (icmd
->ulpCommand
== CMD_XMIT_BLS_RSP64_CX
)
8163 return sglq
->sli4_xritag
;
8164 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
8165 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
8166 sizeof(struct ulp_bde64
);
8167 /* The addrHigh and addrLow fields within the IOCB
8168 * have not been byteswapped yet so there is no
8169 * need to swap them back.
8171 if (piocbq
->context3
)
8172 dmabuf
= (struct lpfc_dmabuf
*)piocbq
->context3
;
8176 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
8180 for (i
= 0; i
< numBdes
; i
++) {
8181 /* Should already be byte swapped. */
8182 sgl
->addr_hi
= bpl
->addrHigh
;
8183 sgl
->addr_lo
= bpl
->addrLow
;
8185 sgl
->word2
= le32_to_cpu(sgl
->word2
);
8186 if ((i
+1) == numBdes
)
8187 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
8189 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
8190 /* swap the size field back to the cpu so we
8191 * can assign it to the sgl.
8193 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
8194 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
8195 /* The offsets in the sgl need to be accumulated
8196 * separately for the request and reply lists.
8197 * The request is always first, the reply follows.
8199 if (piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) {
8200 /* add up the reply sg entries */
8201 if (bpl
->tus
.f
.bdeFlags
== BUFF_TYPE_BDE_64I
)
8203 /* first inbound? reset the offset */
8206 bf_set(lpfc_sli4_sge_offset
, sgl
, offset
);
8207 bf_set(lpfc_sli4_sge_type
, sgl
,
8208 LPFC_SGE_TYPE_DATA
);
8209 offset
+= bde
.tus
.f
.bdeSize
;
8211 sgl
->word2
= cpu_to_le32(sgl
->word2
);
8215 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
8216 /* The addrHigh and addrLow fields of the BDE have not
8217 * been byteswapped yet so they need to be swapped
8218 * before putting them in the sgl.
8221 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
8223 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
8224 sgl
->word2
= le32_to_cpu(sgl
->word2
);
8225 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
8226 sgl
->word2
= cpu_to_le32(sgl
->word2
);
8228 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
8230 return sglq
->sli4_xritag
;
8234 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8235 * @phba: Pointer to HBA context object.
8236 * @piocb: Pointer to command iocb.
8237 * @wqe: Pointer to the work queue entry.
8239 * This routine converts the iocb command to its Work Queue Entry
8240 * equivalent. The wqe pointer should not have any fields set when
8241 * this routine is called because it will memcpy over them.
8242 * This routine does not set the CQ_ID or the WQEC bits in the
8245 * Returns: 0 = Success, IOCB_ERROR = Failure.
8248 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
8249 union lpfc_wqe
*wqe
)
8251 uint32_t xmit_len
= 0, total_len
= 0;
8255 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
8258 uint16_t abrt_iotag
;
8259 struct lpfc_iocbq
*abrtiocbq
;
8260 struct ulp_bde64
*bpl
= NULL
;
8261 uint32_t els_id
= LPFC_ELS_ID_DEFAULT
;
8263 struct ulp_bde64 bde
;
8264 struct lpfc_nodelist
*ndlp
;
8268 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
8269 /* The fcp commands will set command type */
8270 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
8271 command_type
= FCP_COMMAND
;
8272 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
8273 command_type
= ELS_COMMAND_FIP
;
8275 command_type
= ELS_COMMAND_NON_FIP
;
8277 if (phba
->fcp_embed_io
)
8278 memset(wqe
, 0, sizeof(union lpfc_wqe128
));
8279 /* Some of the fields are in the right position already */
8280 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
8281 wqe
->generic
.wqe_com
.word7
= 0; /* The ct field has moved so reset */
8282 wqe
->generic
.wqe_com
.word10
= 0;
8284 abort_tag
= (uint32_t) iocbq
->iotag
;
8285 xritag
= iocbq
->sli4_xritag
;
8286 /* words0-2 bpl convert bde */
8287 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
8288 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
8289 sizeof(struct ulp_bde64
);
8290 bpl
= (struct ulp_bde64
*)
8291 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
8295 /* Should already be byte swapped. */
8296 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
8297 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
8298 /* swap the size field back to the cpu so we
8299 * can assign it to the sgl.
8301 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
8302 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
8304 for (i
= 0; i
< numBdes
; i
++) {
8305 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
8306 total_len
+= bde
.tus
.f
.bdeSize
;
8309 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
8311 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
8312 cmnd
= iocbq
->iocb
.ulpCommand
;
8314 switch (iocbq
->iocb
.ulpCommand
) {
8315 case CMD_ELS_REQUEST64_CR
:
8316 if (iocbq
->iocb_flag
& LPFC_IO_LIBDFC
)
8317 ndlp
= iocbq
->context_un
.ndlp
;
8319 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8320 if (!iocbq
->iocb
.ulpLe
) {
8321 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8322 "2007 Only Limited Edition cmd Format"
8323 " supported 0x%x\n",
8324 iocbq
->iocb
.ulpCommand
);
8328 wqe
->els_req
.payload_len
= xmit_len
;
8329 /* Els_reguest64 has a TMO */
8330 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
8331 iocbq
->iocb
.ulpTimeout
);
8332 /* Need a VF for word 4 set the vf bit*/
8333 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
8334 /* And a VFID for word 12 */
8335 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
8336 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8337 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8338 iocbq
->iocb
.ulpContext
);
8339 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, ct
);
8340 bf_set(wqe_pu
, &wqe
->els_req
.wqe_com
, 0);
8341 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8342 if (command_type
== ELS_COMMAND_FIP
)
8343 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
8344 >> LPFC_FIP_ELS_ID_SHIFT
);
8345 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8346 iocbq
->context2
)->virt
);
8347 if_type
= bf_get(lpfc_sli_intf_if_type
,
8348 &phba
->sli4_hba
.sli_intf
);
8349 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8350 if (pcmd
&& (*pcmd
== ELS_CMD_FLOGI
||
8351 *pcmd
== ELS_CMD_SCR
||
8352 *pcmd
== ELS_CMD_FDISC
||
8353 *pcmd
== ELS_CMD_LOGO
||
8354 *pcmd
== ELS_CMD_PLOGI
)) {
8355 bf_set(els_req64_sp
, &wqe
->els_req
, 1);
8356 bf_set(els_req64_sid
, &wqe
->els_req
,
8357 iocbq
->vport
->fc_myDID
);
8358 if ((*pcmd
== ELS_CMD_FLOGI
) &&
8359 !(phba
->fc_topology
==
8360 LPFC_TOPOLOGY_LOOP
))
8361 bf_set(els_req64_sid
, &wqe
->els_req
, 0);
8362 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 1);
8363 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8364 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8365 } else if (pcmd
&& iocbq
->context1
) {
8366 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 0);
8367 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8368 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8371 bf_set(wqe_temp_rpi
, &wqe
->els_req
.wqe_com
,
8372 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8373 bf_set(wqe_els_id
, &wqe
->els_req
.wqe_com
, els_id
);
8374 bf_set(wqe_dbde
, &wqe
->els_req
.wqe_com
, 1);
8375 bf_set(wqe_iod
, &wqe
->els_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8376 bf_set(wqe_qosd
, &wqe
->els_req
.wqe_com
, 1);
8377 bf_set(wqe_lenloc
, &wqe
->els_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8378 bf_set(wqe_ebde_cnt
, &wqe
->els_req
.wqe_com
, 0);
8379 wqe
->els_req
.max_response_payload_len
= total_len
- xmit_len
;
8381 case CMD_XMIT_SEQUENCE64_CX
:
8382 bf_set(wqe_ctxt_tag
, &wqe
->xmit_sequence
.wqe_com
,
8383 iocbq
->iocb
.un
.ulpWord
[3]);
8384 bf_set(wqe_rcvoxid
, &wqe
->xmit_sequence
.wqe_com
,
8385 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8386 /* The entire sequence is transmitted for this IOCB */
8387 xmit_len
= total_len
;
8388 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
8389 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
8390 bf_set(wqe_xo
, &wqe
->xmit_sequence
.wge_ctl
, 1);
8391 case CMD_XMIT_SEQUENCE64_CR
:
8392 /* word3 iocb=io_tag32 wqe=reserved */
8393 wqe
->xmit_sequence
.rsvd3
= 0;
8394 /* word4 relative_offset memcpy */
8395 /* word5 r_ctl/df_ctl memcpy */
8396 bf_set(wqe_pu
, &wqe
->xmit_sequence
.wqe_com
, 0);
8397 bf_set(wqe_dbde
, &wqe
->xmit_sequence
.wqe_com
, 1);
8398 bf_set(wqe_iod
, &wqe
->xmit_sequence
.wqe_com
,
8399 LPFC_WQE_IOD_WRITE
);
8400 bf_set(wqe_lenloc
, &wqe
->xmit_sequence
.wqe_com
,
8401 LPFC_WQE_LENLOC_WORD12
);
8402 bf_set(wqe_ebde_cnt
, &wqe
->xmit_sequence
.wqe_com
, 0);
8403 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
8404 command_type
= OTHER_COMMAND
;
8406 case CMD_XMIT_BCAST64_CN
:
8407 /* word3 iocb=iotag32 wqe=seq_payload_len */
8408 wqe
->xmit_bcast64
.seq_payload_len
= xmit_len
;
8409 /* word4 iocb=rsvd wqe=rsvd */
8410 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8411 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8412 bf_set(wqe_ct
, &wqe
->xmit_bcast64
.wqe_com
,
8413 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8414 bf_set(wqe_dbde
, &wqe
->xmit_bcast64
.wqe_com
, 1);
8415 bf_set(wqe_iod
, &wqe
->xmit_bcast64
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8416 bf_set(wqe_lenloc
, &wqe
->xmit_bcast64
.wqe_com
,
8417 LPFC_WQE_LENLOC_WORD3
);
8418 bf_set(wqe_ebde_cnt
, &wqe
->xmit_bcast64
.wqe_com
, 0);
8420 case CMD_FCP_IWRITE64_CR
:
8421 command_type
= FCP_COMMAND_DATA_OUT
;
8422 /* word3 iocb=iotag wqe=payload_offset_len */
8423 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8424 bf_set(payload_offset_len
, &wqe
->fcp_iwrite
,
8425 xmit_len
+ sizeof(struct fcp_rsp
));
8426 bf_set(cmd_buff_len
, &wqe
->fcp_iwrite
,
8428 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8429 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8430 bf_set(wqe_erp
, &wqe
->fcp_iwrite
.wqe_com
,
8431 iocbq
->iocb
.ulpFCP2Rcvy
);
8432 bf_set(wqe_lnk
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpXS
);
8433 /* Always open the exchange */
8434 bf_set(wqe_iod
, &wqe
->fcp_iwrite
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8435 bf_set(wqe_lenloc
, &wqe
->fcp_iwrite
.wqe_com
,
8436 LPFC_WQE_LENLOC_WORD4
);
8437 bf_set(wqe_pu
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpPU
);
8438 bf_set(wqe_dbde
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8439 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8440 bf_set(wqe_oas
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8441 bf_set(wqe_ccpe
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8442 if (iocbq
->priority
) {
8443 bf_set(wqe_ccp
, &wqe
->fcp_iwrite
.wqe_com
,
8444 (iocbq
->priority
<< 1));
8446 bf_set(wqe_ccp
, &wqe
->fcp_iwrite
.wqe_com
,
8447 (phba
->cfg_XLanePriority
<< 1));
8450 /* Note, word 10 is already initialized to 0 */
8452 if (phba
->fcp_embed_io
) {
8453 struct lpfc_scsi_buf
*lpfc_cmd
;
8454 struct sli4_sge
*sgl
;
8455 union lpfc_wqe128
*wqe128
;
8456 struct fcp_cmnd
*fcp_cmnd
;
8459 /* 128 byte wqe support here */
8460 wqe128
= (union lpfc_wqe128
*)wqe
;
8462 lpfc_cmd
= iocbq
->context1
;
8463 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8464 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8466 /* Word 0-2 - FCP_CMND */
8467 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8468 BUFF_TYPE_BDE_IMMED
;
8469 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8470 wqe128
->generic
.bde
.addrHigh
= 0;
8471 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8473 bf_set(wqe_wqes
, &wqe128
->fcp_iwrite
.wqe_com
, 1);
8475 /* Word 22-29 FCP CMND Payload */
8476 ptr
= &wqe128
->words
[22];
8477 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8480 case CMD_FCP_IREAD64_CR
:
8481 /* word3 iocb=iotag wqe=payload_offset_len */
8482 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8483 bf_set(payload_offset_len
, &wqe
->fcp_iread
,
8484 xmit_len
+ sizeof(struct fcp_rsp
));
8485 bf_set(cmd_buff_len
, &wqe
->fcp_iread
,
8487 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8488 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8489 bf_set(wqe_erp
, &wqe
->fcp_iread
.wqe_com
,
8490 iocbq
->iocb
.ulpFCP2Rcvy
);
8491 bf_set(wqe_lnk
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpXS
);
8492 /* Always open the exchange */
8493 bf_set(wqe_iod
, &wqe
->fcp_iread
.wqe_com
, LPFC_WQE_IOD_READ
);
8494 bf_set(wqe_lenloc
, &wqe
->fcp_iread
.wqe_com
,
8495 LPFC_WQE_LENLOC_WORD4
);
8496 bf_set(wqe_pu
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpPU
);
8497 bf_set(wqe_dbde
, &wqe
->fcp_iread
.wqe_com
, 1);
8498 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8499 bf_set(wqe_oas
, &wqe
->fcp_iread
.wqe_com
, 1);
8500 bf_set(wqe_ccpe
, &wqe
->fcp_iread
.wqe_com
, 1);
8501 if (iocbq
->priority
) {
8502 bf_set(wqe_ccp
, &wqe
->fcp_iread
.wqe_com
,
8503 (iocbq
->priority
<< 1));
8505 bf_set(wqe_ccp
, &wqe
->fcp_iread
.wqe_com
,
8506 (phba
->cfg_XLanePriority
<< 1));
8509 /* Note, word 10 is already initialized to 0 */
8511 if (phba
->fcp_embed_io
) {
8512 struct lpfc_scsi_buf
*lpfc_cmd
;
8513 struct sli4_sge
*sgl
;
8514 union lpfc_wqe128
*wqe128
;
8515 struct fcp_cmnd
*fcp_cmnd
;
8518 /* 128 byte wqe support here */
8519 wqe128
= (union lpfc_wqe128
*)wqe
;
8521 lpfc_cmd
= iocbq
->context1
;
8522 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8523 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8525 /* Word 0-2 - FCP_CMND */
8526 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8527 BUFF_TYPE_BDE_IMMED
;
8528 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8529 wqe128
->generic
.bde
.addrHigh
= 0;
8530 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8532 bf_set(wqe_wqes
, &wqe128
->fcp_iread
.wqe_com
, 1);
8534 /* Word 22-29 FCP CMND Payload */
8535 ptr
= &wqe128
->words
[22];
8536 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8539 case CMD_FCP_ICMND64_CR
:
8540 /* word3 iocb=iotag wqe=payload_offset_len */
8541 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8542 bf_set(payload_offset_len
, &wqe
->fcp_icmd
,
8543 xmit_len
+ sizeof(struct fcp_rsp
));
8544 bf_set(cmd_buff_len
, &wqe
->fcp_icmd
,
8546 /* word3 iocb=IO_TAG wqe=reserved */
8547 bf_set(wqe_pu
, &wqe
->fcp_icmd
.wqe_com
, 0);
8548 /* Always open the exchange */
8549 bf_set(wqe_dbde
, &wqe
->fcp_icmd
.wqe_com
, 1);
8550 bf_set(wqe_iod
, &wqe
->fcp_icmd
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8551 bf_set(wqe_qosd
, &wqe
->fcp_icmd
.wqe_com
, 1);
8552 bf_set(wqe_lenloc
, &wqe
->fcp_icmd
.wqe_com
,
8553 LPFC_WQE_LENLOC_NONE
);
8554 bf_set(wqe_erp
, &wqe
->fcp_icmd
.wqe_com
,
8555 iocbq
->iocb
.ulpFCP2Rcvy
);
8556 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8557 bf_set(wqe_oas
, &wqe
->fcp_icmd
.wqe_com
, 1);
8558 bf_set(wqe_ccpe
, &wqe
->fcp_icmd
.wqe_com
, 1);
8559 if (iocbq
->priority
) {
8560 bf_set(wqe_ccp
, &wqe
->fcp_icmd
.wqe_com
,
8561 (iocbq
->priority
<< 1));
8563 bf_set(wqe_ccp
, &wqe
->fcp_icmd
.wqe_com
,
8564 (phba
->cfg_XLanePriority
<< 1));
8567 /* Note, word 10 is already initialized to 0 */
8569 if (phba
->fcp_embed_io
) {
8570 struct lpfc_scsi_buf
*lpfc_cmd
;
8571 struct sli4_sge
*sgl
;
8572 union lpfc_wqe128
*wqe128
;
8573 struct fcp_cmnd
*fcp_cmnd
;
8576 /* 128 byte wqe support here */
8577 wqe128
= (union lpfc_wqe128
*)wqe
;
8579 lpfc_cmd
= iocbq
->context1
;
8580 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8581 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8583 /* Word 0-2 - FCP_CMND */
8584 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8585 BUFF_TYPE_BDE_IMMED
;
8586 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8587 wqe128
->generic
.bde
.addrHigh
= 0;
8588 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8590 bf_set(wqe_wqes
, &wqe128
->fcp_icmd
.wqe_com
, 1);
8592 /* Word 22-29 FCP CMND Payload */
8593 ptr
= &wqe128
->words
[22];
8594 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8597 case CMD_GEN_REQUEST64_CR
:
8598 /* For this command calculate the xmit length of the
8602 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
8603 sizeof(struct ulp_bde64
);
8604 for (i
= 0; i
< numBdes
; i
++) {
8605 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
8606 if (bde
.tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
8608 xmit_len
+= bde
.tus
.f
.bdeSize
;
8610 /* word3 iocb=IO_TAG wqe=request_payload_len */
8611 wqe
->gen_req
.request_payload_len
= xmit_len
;
8612 /* word4 iocb=parameter wqe=relative_offset memcpy */
8613 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8614 /* word6 context tag copied in memcpy */
8615 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
8616 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8617 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8618 "2015 Invalid CT %x command 0x%x\n",
8619 ct
, iocbq
->iocb
.ulpCommand
);
8622 bf_set(wqe_ct
, &wqe
->gen_req
.wqe_com
, 0);
8623 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpTimeout
);
8624 bf_set(wqe_pu
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpPU
);
8625 bf_set(wqe_dbde
, &wqe
->gen_req
.wqe_com
, 1);
8626 bf_set(wqe_iod
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8627 bf_set(wqe_qosd
, &wqe
->gen_req
.wqe_com
, 1);
8628 bf_set(wqe_lenloc
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8629 bf_set(wqe_ebde_cnt
, &wqe
->gen_req
.wqe_com
, 0);
8630 wqe
->gen_req
.max_response_payload_len
= total_len
- xmit_len
;
8631 command_type
= OTHER_COMMAND
;
8633 case CMD_XMIT_ELS_RSP64_CX
:
8634 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8635 /* words0-2 BDE memcpy */
8636 /* word3 iocb=iotag32 wqe=response_payload_len */
8637 wqe
->xmit_els_rsp
.response_payload_len
= xmit_len
;
8639 wqe
->xmit_els_rsp
.word4
= 0;
8640 /* word5 iocb=rsvd wge=did */
8641 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
8642 iocbq
->iocb
.un
.xseq64
.xmit_els_remoteID
);
8644 if_type
= bf_get(lpfc_sli_intf_if_type
,
8645 &phba
->sli4_hba
.sli_intf
);
8646 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8647 if (iocbq
->vport
->fc_flag
& FC_PT2PT
) {
8648 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8649 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8650 iocbq
->vport
->fc_myDID
);
8651 if (iocbq
->vport
->fc_myDID
== Fabric_DID
) {
8653 &wqe
->xmit_els_rsp
.wqe_dest
, 0);
8657 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
,
8658 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8659 bf_set(wqe_pu
, &wqe
->xmit_els_rsp
.wqe_com
, iocbq
->iocb
.ulpPU
);
8660 bf_set(wqe_rcvoxid
, &wqe
->xmit_els_rsp
.wqe_com
,
8661 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8662 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
8663 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8664 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8665 bf_set(wqe_dbde
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8666 bf_set(wqe_iod
, &wqe
->xmit_els_rsp
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8667 bf_set(wqe_qosd
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8668 bf_set(wqe_lenloc
, &wqe
->xmit_els_rsp
.wqe_com
,
8669 LPFC_WQE_LENLOC_WORD3
);
8670 bf_set(wqe_ebde_cnt
, &wqe
->xmit_els_rsp
.wqe_com
, 0);
8671 bf_set(wqe_rsp_temp_rpi
, &wqe
->xmit_els_rsp
,
8672 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8673 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8674 iocbq
->context2
)->virt
);
8675 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8676 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8677 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8678 iocbq
->vport
->fc_myDID
);
8679 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8680 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8681 phba
->vpi_ids
[phba
->pport
->vpi
]);
8683 command_type
= OTHER_COMMAND
;
8685 case CMD_CLOSE_XRI_CN
:
8686 case CMD_ABORT_XRI_CN
:
8687 case CMD_ABORT_XRI_CX
:
8688 /* words 0-2 memcpy should be 0 rserved */
8689 /* port will send abts */
8690 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
8691 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
8692 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
8693 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
8697 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
8699 * The link is down, or the command was ELS_FIP
8700 * so the fw does not need to send abts
8703 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
8705 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
8706 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
8707 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8708 wqe
->abort_cmd
.rsrvd5
= 0;
8709 bf_set(wqe_ct
, &wqe
->abort_cmd
.wqe_com
,
8710 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8711 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
8713 * The abort handler will send us CMD_ABORT_XRI_CN or
8714 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8716 bf_set(wqe_cmnd
, &wqe
->abort_cmd
.wqe_com
, CMD_ABORT_XRI_CX
);
8717 bf_set(wqe_qosd
, &wqe
->abort_cmd
.wqe_com
, 1);
8718 bf_set(wqe_lenloc
, &wqe
->abort_cmd
.wqe_com
,
8719 LPFC_WQE_LENLOC_NONE
);
8720 cmnd
= CMD_ABORT_XRI_CX
;
8721 command_type
= OTHER_COMMAND
;
8724 case CMD_XMIT_BLS_RSP64_CX
:
8725 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8726 /* As BLS ABTS RSP WQE is very different from other WQEs,
8727 * we re-construct this WQE here based on information in
8728 * iocbq from scratch.
8730 memset(wqe
, 0, sizeof(union lpfc_wqe
));
8731 /* OX_ID is invariable to who sent ABTS to CT exchange */
8732 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
8733 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_rsp
));
8734 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_rsp
) ==
8735 LPFC_ABTS_UNSOL_INT
) {
8736 /* ABTS sent by initiator to CT exchange, the
8737 * RX_ID field will be filled with the newly
8738 * allocated responder XRI.
8740 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8741 iocbq
->sli4_xritag
);
8743 /* ABTS sent by responder to CT exchange, the
8744 * RX_ID field will be filled with the responder
8747 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8748 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_rsp
));
8750 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
8751 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
8754 bf_set(wqe_els_did
, &wqe
->xmit_bls_rsp
.wqe_dest
,
8756 bf_set(xmit_bls_rsp64_temprpi
, &wqe
->xmit_bls_rsp
,
8757 iocbq
->iocb
.ulpContext
);
8758 bf_set(wqe_ct
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8759 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
8760 phba
->vpi_ids
[phba
->pport
->vpi
]);
8761 bf_set(wqe_qosd
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8762 bf_set(wqe_lenloc
, &wqe
->xmit_bls_rsp
.wqe_com
,
8763 LPFC_WQE_LENLOC_NONE
);
8764 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8765 command_type
= OTHER_COMMAND
;
8766 if (iocbq
->iocb
.un
.xseq64
.w5
.hcsw
.Rctl
== FC_RCTL_BA_RJT
) {
8767 bf_set(xmit_bls_rsp64_rjt_vspec
, &wqe
->xmit_bls_rsp
,
8768 bf_get(lpfc_vndr_code
, &iocbq
->iocb
.un
.bls_rsp
));
8769 bf_set(xmit_bls_rsp64_rjt_expc
, &wqe
->xmit_bls_rsp
,
8770 bf_get(lpfc_rsn_expln
, &iocbq
->iocb
.un
.bls_rsp
));
8771 bf_set(xmit_bls_rsp64_rjt_rsnc
, &wqe
->xmit_bls_rsp
,
8772 bf_get(lpfc_rsn_code
, &iocbq
->iocb
.un
.bls_rsp
));
8776 case CMD_XRI_ABORTED_CX
:
8777 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
8778 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
8779 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
8780 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
8781 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
8783 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8784 "2014 Invalid command 0x%x\n",
8785 iocbq
->iocb
.ulpCommand
);
8790 if (iocbq
->iocb_flag
& LPFC_IO_DIF_PASS
)
8791 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_PASSTHRU
);
8792 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_STRIP
)
8793 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_STRIP
);
8794 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_INSERT
)
8795 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_INSERT
);
8796 iocbq
->iocb_flag
&= ~(LPFC_IO_DIF_PASS
| LPFC_IO_DIF_STRIP
|
8797 LPFC_IO_DIF_INSERT
);
8798 bf_set(wqe_xri_tag
, &wqe
->generic
.wqe_com
, xritag
);
8799 bf_set(wqe_reqtag
, &wqe
->generic
.wqe_com
, iocbq
->iotag
);
8800 wqe
->generic
.wqe_com
.abort_tag
= abort_tag
;
8801 bf_set(wqe_cmd_type
, &wqe
->generic
.wqe_com
, command_type
);
8802 bf_set(wqe_cmnd
, &wqe
->generic
.wqe_com
, cmnd
);
8803 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, iocbq
->iocb
.ulpClass
);
8804 bf_set(wqe_cqid
, &wqe
->generic
.wqe_com
, LPFC_WQE_CQ_ID_DEFAULT
);
8809 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8810 * @phba: Pointer to HBA context object.
8811 * @ring_number: SLI ring number to issue iocb on.
8812 * @piocb: Pointer to command iocb.
8813 * @flag: Flag indicating if this command can be put into txq.
8815 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8816 * an iocb command to an HBA with SLI-4 interface spec.
8818 * This function is called with hbalock held. The function will return success
8819 * after it successfully submit the iocb to firmware or after adding to the
8823 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
8824 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8826 struct lpfc_sglq
*sglq
;
8827 union lpfc_wqe
*wqe
;
8828 union lpfc_wqe128 wqe128
;
8829 struct lpfc_queue
*wq
;
8830 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
8832 lockdep_assert_held(&phba
->hbalock
);
8835 * The WQE can be either 64 or 128 bytes,
8836 * so allocate space on the stack assuming the largest.
8838 wqe
= (union lpfc_wqe
*)&wqe128
;
8840 if (piocb
->sli4_xritag
== NO_XRI
) {
8841 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
8842 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
8845 if (!list_empty(&pring
->txq
)) {
8846 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8847 __lpfc_sli_ringtx_put(phba
,
8849 return IOCB_SUCCESS
;
8854 sglq
= __lpfc_sli_get_sglq(phba
, piocb
);
8856 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8857 __lpfc_sli_ringtx_put(phba
,
8860 return IOCB_SUCCESS
;
8866 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
8867 /* These IO's already have an XRI and a mapped sgl. */
8871 * This is a continuation of a commandi,(CX) so this
8872 * sglq is on the active list
8874 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_lxritag
);
8880 piocb
->sli4_lxritag
= sglq
->sli4_lxritag
;
8881 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
8882 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
8886 if (lpfc_sli4_iocb2wqe(phba
, piocb
, wqe
))
8889 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
8890 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
8891 if (!phba
->cfg_fof
|| (!(piocb
->iocb_flag
& LPFC_IO_OAS
))) {
8892 wq
= phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
];
8894 wq
= phba
->sli4_hba
.oas_wq
;
8896 if (lpfc_sli4_wq_put(wq
, wqe
))
8899 if (unlikely(!phba
->sli4_hba
.els_wq
))
8901 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, wqe
))
8904 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
8910 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8912 * This routine wraps the actual lockless version for issusing IOCB function
8913 * pointer from the lpfc_hba struct.
8916 * IOCB_ERROR - Error
8917 * IOCB_SUCCESS - Success
8921 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
8922 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8924 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
8928 * lpfc_sli_api_table_setup - Set up sli api function jump table
8929 * @phba: The hba struct for which this call is being executed.
8930 * @dev_grp: The HBA PCI-Device group number.
8932 * This routine sets up the SLI interface API function jump table in @phba
8934 * Returns: 0 - success, -ENODEV - failure.
8937 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
8941 case LPFC_PCI_DEV_LP
:
8942 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
8943 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
8945 case LPFC_PCI_DEV_OC
:
8946 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
8947 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
8950 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8951 "1419 Invalid HBA PCI-device group: 0x%x\n",
8956 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
8961 * lpfc_sli_calc_ring - Calculates which ring to use
8962 * @phba: Pointer to HBA context object.
8963 * @ring_number: Initial ring
8964 * @piocb: Pointer to command iocb.
8966 * For SLI4, FCP IO can deferred to one fo many WQs, based on
8967 * fcp_wqidx, thus we need to calculate the corresponding ring.
8968 * Since ABORTS must go on the same WQ of the command they are
8969 * aborting, we use command's fcp_wqidx.
8972 lpfc_sli_calc_ring(struct lpfc_hba
*phba
, uint32_t ring_number
,
8973 struct lpfc_iocbq
*piocb
)
8975 if (phba
->sli_rev
< LPFC_SLI_REV4
)
8978 if (piocb
->iocb_flag
& (LPFC_IO_FCP
| LPFC_USE_FCPWQIDX
)) {
8979 if (!(phba
->cfg_fof
) ||
8980 (!(piocb
->iocb_flag
& LPFC_IO_FOF
))) {
8981 if (unlikely(!phba
->sli4_hba
.fcp_wq
))
8982 return LPFC_HBA_ERROR
;
8984 * for abort iocb fcp_wqidx should already
8985 * be setup based on what work queue we used.
8987 if (!(piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
))
8989 lpfc_sli4_scmd_to_wqidx_distr(phba
,
8991 ring_number
= MAX_SLI3_CONFIGURED_RINGS
+
8994 if (unlikely(!phba
->sli4_hba
.oas_wq
))
8995 return LPFC_HBA_ERROR
;
8996 piocb
->fcp_wqidx
= 0;
8997 ring_number
= LPFC_FCP_OAS_RING
;
9004 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9005 * @phba: Pointer to HBA context object.
9006 * @pring: Pointer to driver SLI ring object.
9007 * @piocb: Pointer to command iocb.
9008 * @flag: Flag indicating if this command can be put into txq.
9010 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9011 * function. This function gets the hbalock and calls
9012 * __lpfc_sli_issue_iocb function and will return the error returned
9013 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9014 * functions which do not hold hbalock.
9017 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
9018 struct lpfc_iocbq
*piocb
, uint32_t flag
)
9020 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
9021 struct lpfc_sli_ring
*pring
;
9022 struct lpfc_queue
*fpeq
;
9023 struct lpfc_eqe
*eqe
;
9024 unsigned long iflags
;
9027 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9028 ring_number
= lpfc_sli_calc_ring(phba
, ring_number
, piocb
);
9029 if (unlikely(ring_number
== LPFC_HBA_ERROR
))
9031 idx
= piocb
->fcp_wqidx
;
9033 pring
= &phba
->sli
.ring
[ring_number
];
9034 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
9035 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
9036 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
9038 if (lpfc_fcp_look_ahead
&& (piocb
->iocb_flag
& LPFC_IO_FCP
)) {
9039 fcp_eq_hdl
= &phba
->sli4_hba
.fcp_eq_hdl
[idx
];
9041 if (atomic_dec_and_test(&fcp_eq_hdl
->
9044 /* Get associated EQ with this index */
9045 fpeq
= phba
->sli4_hba
.hba_eq
[idx
];
9047 /* Turn off interrupts from this EQ */
9048 lpfc_sli4_eq_clr_intr(fpeq
);
9051 * Process all the events on FCP EQ
9053 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
9054 lpfc_sli4_hba_handle_eqe(phba
,
9056 fpeq
->EQ_processed
++;
9059 /* Always clear and re-arm the EQ */
9060 lpfc_sli4_eq_release(fpeq
,
9063 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
9066 /* For now, SLI2/3 will still use hbalock */
9067 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9068 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
9069 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9075 * lpfc_extra_ring_setup - Extra ring setup function
9076 * @phba: Pointer to HBA context object.
9078 * This function is called while driver attaches with the
9079 * HBA to setup the extra ring. The extra ring is used
9080 * only when driver needs to support target mode functionality
9081 * or IP over FC functionalities.
9083 * This function is called with no lock held.
9086 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
9088 struct lpfc_sli
*psli
;
9089 struct lpfc_sli_ring
*pring
;
9093 /* Adjust cmd/rsp ring iocb entries more evenly */
9095 /* Take some away from the FCP ring */
9096 pring
= &psli
->ring
[psli
->fcp_ring
];
9097 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9098 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9099 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9100 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9102 /* and give them to the extra ring */
9103 pring
= &psli
->ring
[psli
->extra_ring
];
9105 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9106 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9107 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9108 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9110 /* Setup default profile for this ring */
9111 pring
->iotag_max
= 4096;
9112 pring
->num_mask
= 1;
9113 pring
->prt
[0].profile
= 0; /* Mask 0 */
9114 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
9115 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
9116 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
9120 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9121 * @phba: Pointer to HBA context object.
9122 * @iocbq: Pointer to iocb object.
9124 * The async_event handler calls this routine when it receives
9125 * an ASYNC_STATUS_CN event from the port. The port generates
9126 * this event when an Abort Sequence request to an rport fails
9127 * twice in succession. The abort could be originated by the
9128 * driver or by the port. The ABTS could have been for an ELS
9129 * or FCP IO. The port only generates this event when an ABTS
9130 * fails to complete after one retry.
9133 lpfc_sli_abts_err_handler(struct lpfc_hba
*phba
,
9134 struct lpfc_iocbq
*iocbq
)
9136 struct lpfc_nodelist
*ndlp
= NULL
;
9137 uint16_t rpi
= 0, vpi
= 0;
9138 struct lpfc_vport
*vport
= NULL
;
9140 /* The rpi in the ulpContext is vport-sensitive. */
9141 vpi
= iocbq
->iocb
.un
.asyncstat
.sub_ctxt_tag
;
9142 rpi
= iocbq
->iocb
.ulpContext
;
9144 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9145 "3092 Port generated ABTS async event "
9146 "on vpi %d rpi %d status 0x%x\n",
9147 vpi
, rpi
, iocbq
->iocb
.ulpStatus
);
9149 vport
= lpfc_find_vport_by_vpid(phba
, vpi
);
9152 ndlp
= lpfc_findnode_rpi(vport
, rpi
);
9153 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
9156 if (iocbq
->iocb
.ulpStatus
== IOSTAT_LOCAL_REJECT
)
9157 lpfc_sli_abts_recover_port(vport
, ndlp
);
9161 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9162 "3095 Event Context not found, no "
9163 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9164 iocbq
->iocb
.ulpContext
, iocbq
->iocb
.ulpStatus
,
9168 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9169 * @phba: pointer to HBA context object.
9170 * @ndlp: nodelist pointer for the impacted rport.
9171 * @axri: pointer to the wcqe containing the failed exchange.
9173 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9174 * port. The port generates this event when an abort exchange request to an
9175 * rport fails twice in succession with no reply. The abort could be originated
9176 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9179 lpfc_sli4_abts_err_handler(struct lpfc_hba
*phba
,
9180 struct lpfc_nodelist
*ndlp
,
9181 struct sli4_wcqe_xri_aborted
*axri
)
9183 struct lpfc_vport
*vport
;
9184 uint32_t ext_status
= 0;
9186 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
9187 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9188 "3115 Node Context not found, driver "
9189 "ignoring abts err event\n");
9193 vport
= ndlp
->vport
;
9194 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9195 "3116 Port generated FCP XRI ABORT event on "
9196 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9197 ndlp
->vport
->vpi
, phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
],
9198 bf_get(lpfc_wcqe_xa_xri
, axri
),
9199 bf_get(lpfc_wcqe_xa_status
, axri
),
9203 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9204 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9205 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9207 ext_status
= axri
->parameter
& IOERR_PARAM_MASK
;
9208 if ((bf_get(lpfc_wcqe_xa_status
, axri
) == IOSTAT_LOCAL_REJECT
) &&
9209 ((ext_status
== IOERR_SEQUENCE_TIMEOUT
) || (ext_status
== 0)))
9210 lpfc_sli_abts_recover_port(vport
, ndlp
);
9214 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9215 * @phba: Pointer to HBA context object.
9216 * @pring: Pointer to driver SLI ring object.
9217 * @iocbq: Pointer to iocb object.
9219 * This function is called by the slow ring event handler
9220 * function when there is an ASYNC event iocb in the ring.
9221 * This function is called with no lock held.
9222 * Currently this function handles only temperature related
9223 * ASYNC events. The function decodes the temperature sensor
9224 * event message and posts events for the management applications.
9227 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
9228 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
9232 struct temp_event temp_event_data
;
9233 struct Scsi_Host
*shost
;
9236 icmd
= &iocbq
->iocb
;
9237 evt_code
= icmd
->un
.asyncstat
.evt_code
;
9240 case ASYNC_TEMP_WARN
:
9241 case ASYNC_TEMP_SAFE
:
9242 temp_event_data
.data
= (uint32_t) icmd
->ulpContext
;
9243 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
9244 if (evt_code
== ASYNC_TEMP_WARN
) {
9245 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
9246 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
9247 "0347 Adapter is very hot, please take "
9248 "corrective action. temperature : %d Celsius\n",
9249 (uint32_t) icmd
->ulpContext
);
9251 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
9252 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
9253 "0340 Adapter temperature is OK now. "
9254 "temperature : %d Celsius\n",
9255 (uint32_t) icmd
->ulpContext
);
9258 /* Send temperature change event to applications */
9259 shost
= lpfc_shost_from_vport(phba
->pport
);
9260 fc_host_post_vendor_event(shost
, fc_get_event_number(),
9261 sizeof(temp_event_data
), (char *) &temp_event_data
,
9264 case ASYNC_STATUS_CN
:
9265 lpfc_sli_abts_err_handler(phba
, iocbq
);
9268 iocb_w
= (uint32_t *) icmd
;
9269 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9270 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9272 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9273 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9274 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9275 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9276 pring
->ringno
, icmd
->un
.asyncstat
.evt_code
,
9277 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
9278 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
9279 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
9280 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
9288 * lpfc_sli_setup - SLI ring setup function
9289 * @phba: Pointer to HBA context object.
9291 * lpfc_sli_setup sets up rings of the SLI interface with
9292 * number of iocbs per ring and iotags. This function is
9293 * called while driver attach to the HBA and before the
9294 * interrupts are enabled. So there is no need for locking.
9296 * This function always returns 0.
9299 lpfc_sli_setup(struct lpfc_hba
*phba
)
9301 int i
, totiocbsize
= 0;
9302 struct lpfc_sli
*psli
= &phba
->sli
;
9303 struct lpfc_sli_ring
*pring
;
9305 psli
->num_rings
= MAX_SLI3_CONFIGURED_RINGS
;
9306 if (phba
->sli_rev
== LPFC_SLI_REV4
)
9307 psli
->num_rings
+= phba
->cfg_fcp_io_channel
;
9309 psli
->fcp_ring
= LPFC_FCP_RING
;
9310 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
9311 psli
->extra_ring
= LPFC_EXTRA_RING
;
9313 psli
->iocbq_lookup
= NULL
;
9314 psli
->iocbq_lookup_len
= 0;
9315 psli
->last_iotag
= 0;
9317 for (i
= 0; i
< psli
->num_rings
; i
++) {
9318 pring
= &psli
->ring
[i
];
9320 case LPFC_FCP_RING
: /* ring 0 - FCP */
9321 /* numCiocb and numRiocb are used in config_port */
9322 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
9323 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
9324 pring
->sli
.sli3
.numCiocb
+=
9325 SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9326 pring
->sli
.sli3
.numRiocb
+=
9327 SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9328 pring
->sli
.sli3
.numCiocb
+=
9329 SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9330 pring
->sli
.sli3
.numRiocb
+=
9331 SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9332 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9333 SLI3_IOCB_CMD_SIZE
:
9335 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9336 SLI3_IOCB_RSP_SIZE
:
9338 pring
->iotag_ctr
= 0;
9340 (phba
->cfg_hba_queue_depth
* 2);
9341 pring
->fast_iotag
= pring
->iotag_max
;
9342 pring
->num_mask
= 0;
9344 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
9345 /* numCiocb and numRiocb are used in config_port */
9346 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
9347 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
9348 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9349 SLI3_IOCB_CMD_SIZE
:
9351 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9352 SLI3_IOCB_RSP_SIZE
:
9354 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
9355 pring
->num_mask
= 0;
9357 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
9358 /* numCiocb and numRiocb are used in config_port */
9359 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
9360 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
9361 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9362 SLI3_IOCB_CMD_SIZE
:
9364 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9365 SLI3_IOCB_RSP_SIZE
:
9367 pring
->fast_iotag
= 0;
9368 pring
->iotag_ctr
= 0;
9369 pring
->iotag_max
= 4096;
9370 pring
->lpfc_sli_rcv_async_status
=
9371 lpfc_sli_async_event_handler
;
9372 pring
->num_mask
= LPFC_MAX_RING_MASK
;
9373 pring
->prt
[0].profile
= 0; /* Mask 0 */
9374 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
9375 pring
->prt
[0].type
= FC_TYPE_ELS
;
9376 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
9377 lpfc_els_unsol_event
;
9378 pring
->prt
[1].profile
= 0; /* Mask 1 */
9379 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
9380 pring
->prt
[1].type
= FC_TYPE_ELS
;
9381 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
9382 lpfc_els_unsol_event
;
9383 pring
->prt
[2].profile
= 0; /* Mask 2 */
9384 /* NameServer Inquiry */
9385 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
9387 pring
->prt
[2].type
= FC_TYPE_CT
;
9388 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
9389 lpfc_ct_unsol_event
;
9390 pring
->prt
[3].profile
= 0; /* Mask 3 */
9391 /* NameServer response */
9392 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
9394 pring
->prt
[3].type
= FC_TYPE_CT
;
9395 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
9396 lpfc_ct_unsol_event
;
9399 totiocbsize
+= (pring
->sli
.sli3
.numCiocb
*
9400 pring
->sli
.sli3
.sizeCiocb
) +
9401 (pring
->sli
.sli3
.numRiocb
* pring
->sli
.sli3
.sizeRiocb
);
9403 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
9404 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9405 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
9406 "SLI2 SLIM Data: x%x x%lx\n",
9407 phba
->brd_no
, totiocbsize
,
9408 (unsigned long) MAX_SLIM_IOCB_SIZE
);
9410 if (phba
->cfg_multi_ring_support
== 2)
9411 lpfc_extra_ring_setup(phba
);
9417 * lpfc_sli_queue_setup - Queue initialization function
9418 * @phba: Pointer to HBA context object.
9420 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9421 * ring. This function also initializes ring indices of each ring.
9422 * This function is called during the initialization of the SLI
9423 * interface of an HBA.
9424 * This function is called with no lock held and always returns
9428 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
9430 struct lpfc_sli
*psli
;
9431 struct lpfc_sli_ring
*pring
;
9435 spin_lock_irq(&phba
->hbalock
);
9436 INIT_LIST_HEAD(&psli
->mboxq
);
9437 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
9438 /* Initialize list headers for txq and txcmplq as double linked lists */
9439 for (i
= 0; i
< psli
->num_rings
; i
++) {
9440 pring
= &psli
->ring
[i
];
9442 pring
->sli
.sli3
.next_cmdidx
= 0;
9443 pring
->sli
.sli3
.local_getidx
= 0;
9444 pring
->sli
.sli3
.cmdidx
= 0;
9446 INIT_LIST_HEAD(&pring
->txq
);
9447 INIT_LIST_HEAD(&pring
->txcmplq
);
9448 INIT_LIST_HEAD(&pring
->iocb_continueq
);
9449 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
9450 INIT_LIST_HEAD(&pring
->postbufq
);
9451 spin_lock_init(&pring
->ring_lock
);
9453 spin_unlock_irq(&phba
->hbalock
);
9458 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9459 * @phba: Pointer to HBA context object.
9461 * This routine flushes the mailbox command subsystem. It will unconditionally
9462 * flush all the mailbox commands in the three possible stages in the mailbox
9463 * command sub-system: pending mailbox command queue; the outstanding mailbox
9464 * command; and completed mailbox command queue. It is caller's responsibility
9465 * to make sure that the driver is in the proper state to flush the mailbox
9466 * command sub-system. Namely, the posting of mailbox commands into the
9467 * pending mailbox command queue from the various clients must be stopped;
9468 * either the HBA is in a state that it will never works on the outstanding
9469 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9470 * mailbox command has been completed.
9473 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
9475 LIST_HEAD(completions
);
9476 struct lpfc_sli
*psli
= &phba
->sli
;
9478 unsigned long iflag
;
9480 /* Flush all the mailbox commands in the mbox system */
9481 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9482 /* The pending mailbox command queue */
9483 list_splice_init(&phba
->sli
.mboxq
, &completions
);
9484 /* The outstanding active mailbox command */
9485 if (psli
->mbox_active
) {
9486 list_add_tail(&psli
->mbox_active
->list
, &completions
);
9487 psli
->mbox_active
= NULL
;
9488 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
9490 /* The completed mailbox command queue */
9491 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
9492 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9494 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9495 while (!list_empty(&completions
)) {
9496 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
9497 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
9499 pmb
->mbox_cmpl(phba
, pmb
);
9504 * lpfc_sli_host_down - Vport cleanup function
9505 * @vport: Pointer to virtual port object.
9507 * lpfc_sli_host_down is called to clean up the resources
9508 * associated with a vport before destroying virtual
9509 * port data structures.
9510 * This function does following operations:
9511 * - Free discovery resources associated with this virtual
9513 * - Free iocbs associated with this virtual port in
9515 * - Send abort for all iocb commands associated with this
9518 * This function is called with no lock held and always returns 1.
9521 lpfc_sli_host_down(struct lpfc_vport
*vport
)
9523 LIST_HEAD(completions
);
9524 struct lpfc_hba
*phba
= vport
->phba
;
9525 struct lpfc_sli
*psli
= &phba
->sli
;
9526 struct lpfc_sli_ring
*pring
;
9527 struct lpfc_iocbq
*iocb
, *next_iocb
;
9529 unsigned long flags
= 0;
9530 uint16_t prev_pring_flag
;
9532 lpfc_cleanup_discovery_resources(vport
);
9534 spin_lock_irqsave(&phba
->hbalock
, flags
);
9535 for (i
= 0; i
< psli
->num_rings
; i
++) {
9536 pring
= &psli
->ring
[i
];
9537 prev_pring_flag
= pring
->flag
;
9538 /* Only slow rings */
9539 if (pring
->ringno
== LPFC_ELS_RING
) {
9540 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9541 /* Set the lpfc data pending flag */
9542 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9545 * Error everything on the txq since these iocbs have not been
9546 * given to the FW yet.
9548 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
9549 if (iocb
->vport
!= vport
)
9551 list_move_tail(&iocb
->list
, &completions
);
9554 /* Next issue ABTS for everything on the txcmplq */
9555 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
9557 if (iocb
->vport
!= vport
)
9559 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
9562 pring
->flag
= prev_pring_flag
;
9565 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9567 /* Cancel all the IOCBs from the completions list */
9568 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9574 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9575 * @phba: Pointer to HBA context object.
9577 * This function cleans up all iocb, buffers, mailbox commands
9578 * while shutting down the HBA. This function is called with no
9579 * lock held and always returns 1.
9580 * This function does the following to cleanup driver resources:
9581 * - Free discovery resources for each virtual port
9582 * - Cleanup any pending fabric iocbs
9583 * - Iterate through the iocb txq and free each entry
9585 * - Free up any buffer posted to the HBA
9586 * - Free mailbox commands in the mailbox queue.
9589 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
9591 LIST_HEAD(completions
);
9592 struct lpfc_sli
*psli
= &phba
->sli
;
9593 struct lpfc_sli_ring
*pring
;
9594 struct lpfc_dmabuf
*buf_ptr
;
9595 unsigned long flags
= 0;
9598 /* Shutdown the mailbox command sub-system */
9599 lpfc_sli_mbox_sys_shutdown(phba
, LPFC_MBX_WAIT
);
9601 lpfc_hba_down_prep(phba
);
9603 lpfc_fabric_abort_hba(phba
);
9605 spin_lock_irqsave(&phba
->hbalock
, flags
);
9606 for (i
= 0; i
< psli
->num_rings
; i
++) {
9607 pring
= &psli
->ring
[i
];
9608 /* Only slow rings */
9609 if (pring
->ringno
== LPFC_ELS_RING
) {
9610 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9611 /* Set the lpfc data pending flag */
9612 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9616 * Error everything on the txq since these iocbs have not been
9617 * given to the FW yet.
9619 list_splice_init(&pring
->txq
, &completions
);
9621 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9623 /* Cancel all the IOCBs from the completions list */
9624 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9627 spin_lock_irqsave(&phba
->hbalock
, flags
);
9628 list_splice_init(&phba
->elsbuf
, &completions
);
9629 phba
->elsbuf_cnt
= 0;
9630 phba
->elsbuf_prev_cnt
= 0;
9631 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9633 while (!list_empty(&completions
)) {
9634 list_remove_head(&completions
, buf_ptr
,
9635 struct lpfc_dmabuf
, list
);
9636 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
9640 /* Return any active mbox cmds */
9641 del_timer_sync(&psli
->mbox_tmo
);
9643 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
9644 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
9645 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
9651 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9652 * @srcp: Source memory pointer.
9653 * @destp: Destination memory pointer.
9654 * @cnt: Number of words required to be copied.
9656 * This function is used for copying data between driver memory
9657 * and the SLI memory. This function also changes the endianness
9658 * of each word if native endianness is different from SLI
9659 * endianness. This function can be called with or without
9663 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9665 uint32_t *src
= srcp
;
9666 uint32_t *dest
= destp
;
9670 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
9672 ldata
= le32_to_cpu(ldata
);
9681 * lpfc_sli_bemem_bcopy - SLI memory copy function
9682 * @srcp: Source memory pointer.
9683 * @destp: Destination memory pointer.
9684 * @cnt: Number of words required to be copied.
9686 * This function is used for copying data between a data structure
9687 * with big endian representation to local endianness.
9688 * This function can be called with or without lock.
9691 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9693 uint32_t *src
= srcp
;
9694 uint32_t *dest
= destp
;
9698 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
9700 ldata
= be32_to_cpu(ldata
);
9708 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9709 * @phba: Pointer to HBA context object.
9710 * @pring: Pointer to driver SLI ring object.
9711 * @mp: Pointer to driver buffer object.
9713 * This function is called with no lock held.
9714 * It always return zero after adding the buffer to the postbufq
9718 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9719 struct lpfc_dmabuf
*mp
)
9721 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9723 spin_lock_irq(&phba
->hbalock
);
9724 list_add_tail(&mp
->list
, &pring
->postbufq
);
9725 pring
->postbufq_cnt
++;
9726 spin_unlock_irq(&phba
->hbalock
);
9731 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9732 * @phba: Pointer to HBA context object.
9734 * When HBQ is enabled, buffers are searched based on tags. This function
9735 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9736 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9737 * does not conflict with tags of buffer posted for unsolicited events.
9738 * The function returns the allocated tag. The function is called with
9742 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
9744 spin_lock_irq(&phba
->hbalock
);
9745 phba
->buffer_tag_count
++;
9747 * Always set the QUE_BUFTAG_BIT to distiguish between
9748 * a tag assigned by HBQ.
9750 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
9751 spin_unlock_irq(&phba
->hbalock
);
9752 return phba
->buffer_tag_count
;
9756 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9757 * @phba: Pointer to HBA context object.
9758 * @pring: Pointer to driver SLI ring object.
9761 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9762 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9763 * iocb is posted to the response ring with the tag of the buffer.
9764 * This function searches the pring->postbufq list using the tag
9765 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9766 * iocb. If the buffer is found then lpfc_dmabuf object of the
9767 * buffer is returned to the caller else NULL is returned.
9768 * This function is called with no lock held.
9770 struct lpfc_dmabuf
*
9771 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9774 struct lpfc_dmabuf
*mp
, *next_mp
;
9775 struct list_head
*slp
= &pring
->postbufq
;
9777 /* Search postbufq, from the beginning, looking for a match on tag */
9778 spin_lock_irq(&phba
->hbalock
);
9779 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9780 if (mp
->buffer_tag
== tag
) {
9781 list_del_init(&mp
->list
);
9782 pring
->postbufq_cnt
--;
9783 spin_unlock_irq(&phba
->hbalock
);
9788 spin_unlock_irq(&phba
->hbalock
);
9789 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9790 "0402 Cannot find virtual addr for buffer tag on "
9791 "ring %d Data x%lx x%p x%p x%x\n",
9792 pring
->ringno
, (unsigned long) tag
,
9793 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9799 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9800 * @phba: Pointer to HBA context object.
9801 * @pring: Pointer to driver SLI ring object.
9802 * @phys: DMA address of the buffer.
9804 * This function searches the buffer list using the dma_address
9805 * of unsolicited event to find the driver's lpfc_dmabuf object
9806 * corresponding to the dma_address. The function returns the
9807 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9808 * This function is called by the ct and els unsolicited event
9809 * handlers to get the buffer associated with the unsolicited
9812 * This function is called with no lock held.
9814 struct lpfc_dmabuf
*
9815 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9818 struct lpfc_dmabuf
*mp
, *next_mp
;
9819 struct list_head
*slp
= &pring
->postbufq
;
9821 /* Search postbufq, from the beginning, looking for a match on phys */
9822 spin_lock_irq(&phba
->hbalock
);
9823 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9824 if (mp
->phys
== phys
) {
9825 list_del_init(&mp
->list
);
9826 pring
->postbufq_cnt
--;
9827 spin_unlock_irq(&phba
->hbalock
);
9832 spin_unlock_irq(&phba
->hbalock
);
9833 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9834 "0410 Cannot find virtual addr for mapped buf on "
9835 "ring %d Data x%llx x%p x%p x%x\n",
9836 pring
->ringno
, (unsigned long long)phys
,
9837 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9842 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9843 * @phba: Pointer to HBA context object.
9844 * @cmdiocb: Pointer to driver command iocb object.
9845 * @rspiocb: Pointer to driver response iocb object.
9847 * This function is the completion handler for the abort iocbs for
9848 * ELS commands. This function is called from the ELS ring event
9849 * handler with no lock held. This function frees memory resources
9850 * associated with the abort iocb.
9853 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9854 struct lpfc_iocbq
*rspiocb
)
9856 IOCB_t
*irsp
= &rspiocb
->iocb
;
9857 uint16_t abort_iotag
, abort_context
;
9858 struct lpfc_iocbq
*abort_iocb
= NULL
;
9860 if (irsp
->ulpStatus
) {
9863 * Assume that the port already completed and returned, or
9864 * will return the iocb. Just Log the message.
9866 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
9867 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
9869 spin_lock_irq(&phba
->hbalock
);
9870 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
9871 if (abort_iotag
!= 0 &&
9872 abort_iotag
<= phba
->sli
.last_iotag
)
9874 phba
->sli
.iocbq_lookup
[abort_iotag
];
9876 /* For sli4 the abort_tag is the XRI,
9877 * so the abort routine puts the iotag of the iocb
9878 * being aborted in the context field of the abort
9881 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
9883 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
9884 "0327 Cannot abort els iocb %p "
9885 "with tag %x context %x, abort status %x, "
9887 abort_iocb
, abort_iotag
, abort_context
,
9888 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
9890 spin_unlock_irq(&phba
->hbalock
);
9892 lpfc_sli_release_iocbq(phba
, cmdiocb
);
9897 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9898 * @phba: Pointer to HBA context object.
9899 * @cmdiocb: Pointer to driver command iocb object.
9900 * @rspiocb: Pointer to driver response iocb object.
9902 * The function is called from SLI ring event handler with no
9903 * lock held. This function is the completion handler for ELS commands
9904 * which are aborted. The function frees memory resources used for
9905 * the aborted ELS commands.
9908 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9909 struct lpfc_iocbq
*rspiocb
)
9911 IOCB_t
*irsp
= &rspiocb
->iocb
;
9913 /* ELS cmd tag <ulpIoTag> completes */
9914 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
9915 "0139 Ignoring ELS cmd tag x%x completion Data: "
9917 irsp
->ulpIoTag
, irsp
->ulpStatus
,
9918 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
9919 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
9920 lpfc_ct_free_iocb(phba
, cmdiocb
);
9922 lpfc_els_free_iocb(phba
, cmdiocb
);
9927 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9928 * @phba: Pointer to HBA context object.
9929 * @pring: Pointer to driver SLI ring object.
9930 * @cmdiocb: Pointer to driver command iocb object.
9932 * This function issues an abort iocb for the provided command iocb down to
9933 * the port. Other than the case the outstanding command iocb is an abort
9934 * request, this function issues abort out unconditionally. This function is
9935 * called with hbalock held. The function returns 0 when it fails due to
9936 * memory allocation failure or when the command iocb is an abort request.
9939 lpfc_sli_abort_iotag_issue(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9940 struct lpfc_iocbq
*cmdiocb
)
9942 struct lpfc_vport
*vport
= cmdiocb
->vport
;
9943 struct lpfc_iocbq
*abtsiocbp
;
9944 IOCB_t
*icmd
= NULL
;
9945 IOCB_t
*iabt
= NULL
;
9948 unsigned long iflags
;
9950 lockdep_assert_held(&phba
->hbalock
);
9953 * There are certain command types we don't want to abort. And we
9954 * don't want to abort commands that are already in the process of
9957 icmd
= &cmdiocb
->iocb
;
9958 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
9959 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
9960 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
9963 /* issue ABTS for this IOCB based on iotag */
9964 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
9965 if (abtsiocbp
== NULL
)
9968 /* This signals the response to set the correct status
9969 * before calling the completion handler
9971 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
9973 iabt
= &abtsiocbp
->iocb
;
9974 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
9975 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
9976 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9977 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
9978 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
9981 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
9983 iabt
->ulpClass
= icmd
->ulpClass
;
9985 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
9986 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
9987 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
9988 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
9989 if (cmdiocb
->iocb_flag
& LPFC_IO_FOF
)
9990 abtsiocbp
->iocb_flag
|= LPFC_IO_FOF
;
9992 if (phba
->link_state
>= LPFC_LINK_UP
)
9993 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
9995 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
9997 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
9999 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
10000 "0339 Abort xri x%x, original iotag x%x, "
10001 "abort cmd iotag x%x\n",
10002 iabt
->un
.acxri
.abortIoTag
,
10003 iabt
->un
.acxri
.abortContextTag
,
10006 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
10008 lpfc_sli_calc_ring(phba
, pring
->ringno
, abtsiocbp
);
10009 if (unlikely(ring_number
== LPFC_HBA_ERROR
))
10011 pring
= &phba
->sli
.ring
[ring_number
];
10012 /* Note: both hbalock and ring_lock need to be set here */
10013 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
10014 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10016 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
10018 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10023 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
10026 * Caller to this routine should check for IOCB_ERROR
10027 * and handle it properly. This routine no longer removes
10028 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10034 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10035 * @phba: Pointer to HBA context object.
10036 * @pring: Pointer to driver SLI ring object.
10037 * @cmdiocb: Pointer to driver command iocb object.
10039 * This function issues an abort iocb for the provided command iocb. In case
10040 * of unloading, the abort iocb will not be issued to commands on the ELS
10041 * ring. Instead, the callback function shall be changed to those commands
10042 * so that nothing happens when them finishes. This function is called with
10043 * hbalock held. The function returns 0 when the command iocb is an abort
10047 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
10048 struct lpfc_iocbq
*cmdiocb
)
10050 struct lpfc_vport
*vport
= cmdiocb
->vport
;
10051 int retval
= IOCB_ERROR
;
10052 IOCB_t
*icmd
= NULL
;
10054 lockdep_assert_held(&phba
->hbalock
);
10057 * There are certain command types we don't want to abort. And we
10058 * don't want to abort commands that are already in the process of
10061 icmd
= &cmdiocb
->iocb
;
10062 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
10063 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
10064 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
10068 * If we're unloading, don't abort iocb on the ELS ring, but change
10069 * the callback so that nothing happens when it finishes.
10071 if ((vport
->load_flag
& FC_UNLOADING
) &&
10072 (pring
->ringno
== LPFC_ELS_RING
)) {
10073 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
10074 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
10076 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
10077 goto abort_iotag_exit
;
10080 /* Now, we try to issue the abort to the cmdiocb out */
10081 retval
= lpfc_sli_abort_iotag_issue(phba
, pring
, cmdiocb
);
10085 * Caller to this routine should check for IOCB_ERROR
10086 * and handle it properly. This routine no longer removes
10087 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10093 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10094 * @phba: pointer to lpfc HBA data structure.
10096 * This routine will abort all pending and outstanding iocbs to an HBA.
10099 lpfc_sli_hba_iocb_abort(struct lpfc_hba
*phba
)
10101 struct lpfc_sli
*psli
= &phba
->sli
;
10102 struct lpfc_sli_ring
*pring
;
10105 for (i
= 0; i
< psli
->num_rings
; i
++) {
10106 pring
= &psli
->ring
[i
];
10107 lpfc_sli_abort_iocb_ring(phba
, pring
);
10112 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10113 * @iocbq: Pointer to driver iocb object.
10114 * @vport: Pointer to driver virtual port object.
10115 * @tgt_id: SCSI ID of the target.
10116 * @lun_id: LUN ID of the scsi device.
10117 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10119 * This function acts as an iocb filter for functions which abort or count
10120 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10121 * 0 if the filtering criteria is met for the given iocb and will return
10122 * 1 if the filtering criteria is not met.
10123 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10124 * given iocb is for the SCSI device specified by vport, tgt_id and
10125 * lun_id parameter.
10126 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10127 * given iocb is for the SCSI target specified by vport and tgt_id
10129 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10130 * given iocb is for the SCSI host associated with the given vport.
10131 * This function is called with no locks held.
10134 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
10135 uint16_t tgt_id
, uint64_t lun_id
,
10136 lpfc_ctx_cmd ctx_cmd
)
10138 struct lpfc_scsi_buf
*lpfc_cmd
;
10141 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
10144 if (iocbq
->vport
!= vport
)
10147 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
10149 if (lpfc_cmd
->pCmd
== NULL
)
10154 if ((lpfc_cmd
->rdata
->pnode
) &&
10155 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
10156 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
10160 if ((lpfc_cmd
->rdata
->pnode
) &&
10161 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
10164 case LPFC_CTX_HOST
:
10168 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
10169 __func__
, ctx_cmd
);
10177 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10178 * @vport: Pointer to virtual port.
10179 * @tgt_id: SCSI ID of the target.
10180 * @lun_id: LUN ID of the scsi device.
10181 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10183 * This function returns number of FCP commands pending for the vport.
10184 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10185 * commands pending on the vport associated with SCSI device specified
10186 * by tgt_id and lun_id parameters.
10187 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10188 * commands pending on the vport associated with SCSI target specified
10189 * by tgt_id parameter.
10190 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10191 * commands pending on the vport.
10192 * This function returns the number of iocbs which satisfy the filter.
10193 * This function is called without any lock held.
10196 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
10197 lpfc_ctx_cmd ctx_cmd
)
10199 struct lpfc_hba
*phba
= vport
->phba
;
10200 struct lpfc_iocbq
*iocbq
;
10203 spin_lock_irq(&phba
->hbalock
);
10204 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
10205 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10207 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
10211 spin_unlock_irq(&phba
->hbalock
);
10217 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10218 * @phba: Pointer to HBA context object
10219 * @cmdiocb: Pointer to command iocb object.
10220 * @rspiocb: Pointer to response iocb object.
10222 * This function is called when an aborted FCP iocb completes. This
10223 * function is called by the ring event handler with no lock held.
10224 * This function frees the iocb.
10227 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
10228 struct lpfc_iocbq
*rspiocb
)
10230 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10231 "3096 ABORT_XRI_CN completing on rpi x%x "
10232 "original iotag x%x, abort cmd iotag x%x "
10233 "status 0x%x, reason 0x%x\n",
10234 cmdiocb
->iocb
.un
.acxri
.abortContextTag
,
10235 cmdiocb
->iocb
.un
.acxri
.abortIoTag
,
10236 cmdiocb
->iotag
, rspiocb
->iocb
.ulpStatus
,
10237 rspiocb
->iocb
.un
.ulpWord
[4]);
10238 lpfc_sli_release_iocbq(phba
, cmdiocb
);
10243 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10244 * @vport: Pointer to virtual port.
10245 * @pring: Pointer to driver SLI ring object.
10246 * @tgt_id: SCSI ID of the target.
10247 * @lun_id: LUN ID of the scsi device.
10248 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10250 * This function sends an abort command for every SCSI command
10251 * associated with the given virtual port pending on the ring
10252 * filtered by lpfc_sli_validate_fcp_iocb function.
10253 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10254 * FCP iocbs associated with lun specified by tgt_id and lun_id
10256 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10257 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10258 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10259 * FCP iocbs associated with virtual port.
10260 * This function returns number of iocbs it failed to abort.
10261 * This function is called with no locks held.
10264 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
10265 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
10267 struct lpfc_hba
*phba
= vport
->phba
;
10268 struct lpfc_iocbq
*iocbq
;
10269 struct lpfc_iocbq
*abtsiocb
;
10270 IOCB_t
*cmd
= NULL
;
10271 int errcnt
= 0, ret_val
= 0;
10274 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
10275 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10277 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
10282 * If the iocbq is already being aborted, don't take a second
10283 * action, but do count it.
10285 if (iocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
10288 /* issue ABTS for this IOCB based on iotag */
10289 abtsiocb
= lpfc_sli_get_iocbq(phba
);
10290 if (abtsiocb
== NULL
) {
10295 /* indicate the IO is being aborted by the driver. */
10296 iocbq
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
10298 cmd
= &iocbq
->iocb
;
10299 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
10300 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
10301 if (phba
->sli_rev
== LPFC_SLI_REV4
)
10302 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
10304 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
10305 abtsiocb
->iocb
.ulpLe
= 1;
10306 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
10307 abtsiocb
->vport
= vport
;
10309 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10310 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
10311 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
10312 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
10313 if (iocbq
->iocb_flag
& LPFC_IO_FOF
)
10314 abtsiocb
->iocb_flag
|= LPFC_IO_FOF
;
10316 if (lpfc_is_link_up(phba
))
10317 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
10319 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
10321 /* Setup callback routine and issue the command. */
10322 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
10323 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10325 if (ret_val
== IOCB_ERROR
) {
10326 lpfc_sli_release_iocbq(phba
, abtsiocb
);
10336 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10337 * @vport: Pointer to virtual port.
10338 * @pring: Pointer to driver SLI ring object.
10339 * @tgt_id: SCSI ID of the target.
10340 * @lun_id: LUN ID of the scsi device.
10341 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10343 * This function sends an abort command for every SCSI command
10344 * associated with the given virtual port pending on the ring
10345 * filtered by lpfc_sli_validate_fcp_iocb function.
10346 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10347 * FCP iocbs associated with lun specified by tgt_id and lun_id
10349 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10350 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10351 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10352 * FCP iocbs associated with virtual port.
10353 * This function returns number of iocbs it aborted .
10354 * This function is called with no locks held right after a taskmgmt
10358 lpfc_sli_abort_taskmgmt(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
10359 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd cmd
)
10361 struct lpfc_hba
*phba
= vport
->phba
;
10362 struct lpfc_scsi_buf
*lpfc_cmd
;
10363 struct lpfc_iocbq
*abtsiocbq
;
10364 struct lpfc_nodelist
*ndlp
;
10365 struct lpfc_iocbq
*iocbq
;
10367 int sum
, i
, ret_val
;
10368 unsigned long iflags
;
10369 struct lpfc_sli_ring
*pring_s4
;
10370 uint32_t ring_number
;
10372 spin_lock_irq(&phba
->hbalock
);
10374 /* all I/Os are in process of being flushed */
10375 if (phba
->hba_flag
& HBA_FCP_IOQ_FLUSH
) {
10376 spin_unlock_irq(&phba
->hbalock
);
10381 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
10382 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10384 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
10389 * If the iocbq is already being aborted, don't take a second
10390 * action, but do count it.
10392 if (iocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
10395 /* issue ABTS for this IOCB based on iotag */
10396 abtsiocbq
= __lpfc_sli_get_iocbq(phba
);
10397 if (abtsiocbq
== NULL
)
10400 icmd
= &iocbq
->iocb
;
10401 abtsiocbq
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
10402 abtsiocbq
->iocb
.un
.acxri
.abortContextTag
= icmd
->ulpContext
;
10403 if (phba
->sli_rev
== LPFC_SLI_REV4
)
10404 abtsiocbq
->iocb
.un
.acxri
.abortIoTag
=
10405 iocbq
->sli4_xritag
;
10407 abtsiocbq
->iocb
.un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
10408 abtsiocbq
->iocb
.ulpLe
= 1;
10409 abtsiocbq
->iocb
.ulpClass
= icmd
->ulpClass
;
10410 abtsiocbq
->vport
= vport
;
10412 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10413 abtsiocbq
->fcp_wqidx
= iocbq
->fcp_wqidx
;
10414 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
10415 abtsiocbq
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
10416 if (iocbq
->iocb_flag
& LPFC_IO_FOF
)
10417 abtsiocbq
->iocb_flag
|= LPFC_IO_FOF
;
10419 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
10420 ndlp
= lpfc_cmd
->rdata
->pnode
;
10422 if (lpfc_is_link_up(phba
) &&
10423 (ndlp
&& ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
10424 abtsiocbq
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
10426 abtsiocbq
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
10428 /* Setup callback routine and issue the command. */
10429 abtsiocbq
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
10432 * Indicate the IO is being aborted by the driver and set
10433 * the caller's flag into the aborted IO.
10435 iocbq
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
10437 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
10438 ring_number
= MAX_SLI3_CONFIGURED_RINGS
+
10440 pring_s4
= &phba
->sli
.ring
[ring_number
];
10441 /* Note: both hbalock and ring_lock must be set here */
10442 spin_lock_irqsave(&pring_s4
->ring_lock
, iflags
);
10443 ret_val
= __lpfc_sli_issue_iocb(phba
, pring_s4
->ringno
,
10445 spin_unlock_irqrestore(&pring_s4
->ring_lock
, iflags
);
10447 ret_val
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10452 if (ret_val
== IOCB_ERROR
)
10453 __lpfc_sli_release_iocbq(phba
, abtsiocbq
);
10457 spin_unlock_irq(&phba
->hbalock
);
10462 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10463 * @phba: Pointer to HBA context object.
10464 * @cmdiocbq: Pointer to command iocb.
10465 * @rspiocbq: Pointer to response iocb.
10467 * This function is the completion handler for iocbs issued using
10468 * lpfc_sli_issue_iocb_wait function. This function is called by the
10469 * ring event handler function without any lock held. This function
10470 * can be called from both worker thread context and interrupt
10471 * context. This function also can be called from other thread which
10472 * cleans up the SLI layer objects.
10473 * This function copy the contents of the response iocb to the
10474 * response iocb memory object provided by the caller of
10475 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10476 * sleeps for the iocb completion.
10479 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
10480 struct lpfc_iocbq
*cmdiocbq
,
10481 struct lpfc_iocbq
*rspiocbq
)
10483 wait_queue_head_t
*pdone_q
;
10484 unsigned long iflags
;
10485 struct lpfc_scsi_buf
*lpfc_cmd
;
10487 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10488 if (cmdiocbq
->iocb_flag
& LPFC_IO_WAKE_TMO
) {
10491 * A time out has occurred for the iocb. If a time out
10492 * completion handler has been supplied, call it. Otherwise,
10493 * just free the iocbq.
10496 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10497 cmdiocbq
->iocb_cmpl
= cmdiocbq
->wait_iocb_cmpl
;
10498 cmdiocbq
->wait_iocb_cmpl
= NULL
;
10499 if (cmdiocbq
->iocb_cmpl
)
10500 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, NULL
);
10502 lpfc_sli_release_iocbq(phba
, cmdiocbq
);
10506 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
10507 if (cmdiocbq
->context2
&& rspiocbq
)
10508 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
10509 &rspiocbq
->iocb
, sizeof(IOCB_t
));
10511 /* Set the exchange busy flag for task management commands */
10512 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
10513 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
10514 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
10516 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
10519 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
10522 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10527 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10528 * @phba: Pointer to HBA context object..
10529 * @piocbq: Pointer to command iocb.
10530 * @flag: Flag to test.
10532 * This routine grabs the hbalock and then test the iocb_flag to
10533 * see if the passed in flag is set.
10535 * 1 if flag is set.
10536 * 0 if flag is not set.
10539 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
10540 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
10542 unsigned long iflags
;
10545 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10546 ret
= piocbq
->iocb_flag
& flag
;
10547 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10553 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10554 * @phba: Pointer to HBA context object..
10555 * @pring: Pointer to sli ring.
10556 * @piocb: Pointer to command iocb.
10557 * @prspiocbq: Pointer to response iocb.
10558 * @timeout: Timeout in number of seconds.
10560 * This function issues the iocb to firmware and waits for the
10561 * iocb to complete. The iocb_cmpl field of the shall be used
10562 * to handle iocbs which time out. If the field is NULL, the
10563 * function shall free the iocbq structure. If more clean up is
10564 * needed, the caller is expected to provide a completion function
10565 * that will provide the needed clean up. If the iocb command is
10566 * not completed within timeout seconds, the function will either
10567 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10568 * completion function set in the iocb_cmpl field and then return
10569 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10570 * resources if this function returns IOCB_TIMEDOUT.
10571 * The function waits for the iocb completion using an
10572 * non-interruptible wait.
10573 * This function will sleep while waiting for iocb completion.
10574 * So, this function should not be called from any context which
10575 * does not allow sleeping. Due to the same reason, this function
10576 * cannot be called with interrupt disabled.
10577 * This function assumes that the iocb completions occur while
10578 * this function sleep. So, this function cannot be called from
10579 * the thread which process iocb completion for this ring.
10580 * This function clears the iocb_flag of the iocb object before
10581 * issuing the iocb and the iocb completion handler sets this
10582 * flag and wakes this thread when the iocb completes.
10583 * The contents of the response iocb will be copied to prspiocbq
10584 * by the completion handler when the command completes.
10585 * This function returns IOCB_SUCCESS when success.
10586 * This function is called with no lock held.
10589 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
10590 uint32_t ring_number
,
10591 struct lpfc_iocbq
*piocb
,
10592 struct lpfc_iocbq
*prspiocbq
,
10595 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
10596 long timeleft
, timeout_req
= 0;
10597 int retval
= IOCB_SUCCESS
;
10599 struct lpfc_iocbq
*iocb
;
10601 int txcmplq_cnt
= 0;
10602 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
10603 unsigned long iflags
;
10604 bool iocb_completed
= true;
10607 * If the caller has provided a response iocbq buffer, then context2
10608 * is NULL or its an error.
10611 if (piocb
->context2
)
10613 piocb
->context2
= prspiocbq
;
10616 piocb
->wait_iocb_cmpl
= piocb
->iocb_cmpl
;
10617 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
10618 piocb
->context_un
.wait_queue
= &done_q
;
10619 piocb
->iocb_flag
&= ~(LPFC_IO_WAKE
| LPFC_IO_WAKE_TMO
);
10621 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
10622 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10624 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
10625 writel(creg_val
, phba
->HCregaddr
);
10626 readl(phba
->HCregaddr
); /* flush */
10629 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
10630 SLI_IOCB_RET_IOCB
);
10631 if (retval
== IOCB_SUCCESS
) {
10632 timeout_req
= msecs_to_jiffies(timeout
* 1000);
10633 timeleft
= wait_event_timeout(done_q
,
10634 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
10636 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10637 if (!(piocb
->iocb_flag
& LPFC_IO_WAKE
)) {
10640 * IOCB timed out. Inform the wake iocb wait
10641 * completion function and set local status
10644 iocb_completed
= false;
10645 piocb
->iocb_flag
|= LPFC_IO_WAKE_TMO
;
10647 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10648 if (iocb_completed
) {
10649 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10650 "0331 IOCB wake signaled\n");
10651 /* Note: we are not indicating if the IOCB has a success
10652 * status or not - that's for the caller to check.
10653 * IOCB_SUCCESS means just that the command was sent and
10654 * completed. Not that it completed successfully.
10656 } else if (timeleft
== 0) {
10657 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10658 "0338 IOCB wait timeout error - no "
10659 "wake response Data x%x\n", timeout
);
10660 retval
= IOCB_TIMEDOUT
;
10662 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10663 "0330 IOCB wake NOT set, "
10665 timeout
, (timeleft
/ jiffies
));
10666 retval
= IOCB_TIMEDOUT
;
10668 } else if (retval
== IOCB_BUSY
) {
10669 if (phba
->cfg_log_verbose
& LOG_SLI
) {
10670 list_for_each_entry(iocb
, &pring
->txq
, list
) {
10673 list_for_each_entry(iocb
, &pring
->txcmplq
, list
) {
10676 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10677 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10678 phba
->iocb_cnt
, txq_cnt
, txcmplq_cnt
);
10682 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10683 "0332 IOCB wait issue failed, Data x%x\n",
10685 retval
= IOCB_ERROR
;
10688 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
10689 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10691 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
10692 writel(creg_val
, phba
->HCregaddr
);
10693 readl(phba
->HCregaddr
); /* flush */
10697 piocb
->context2
= NULL
;
10699 piocb
->context_un
.wait_queue
= NULL
;
10700 piocb
->iocb_cmpl
= NULL
;
10705 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10706 * @phba: Pointer to HBA context object.
10707 * @pmboxq: Pointer to driver mailbox object.
10708 * @timeout: Timeout in number of seconds.
10710 * This function issues the mailbox to firmware and waits for the
10711 * mailbox command to complete. If the mailbox command is not
10712 * completed within timeout seconds, it returns MBX_TIMEOUT.
10713 * The function waits for the mailbox completion using an
10714 * interruptible wait. If the thread is woken up due to a
10715 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10716 * should not free the mailbox resources, if this function returns
10718 * This function will sleep while waiting for mailbox completion.
10719 * So, this function should not be called from any context which
10720 * does not allow sleeping. Due to the same reason, this function
10721 * cannot be called with interrupt disabled.
10722 * This function assumes that the mailbox completion occurs while
10723 * this function sleep. So, this function cannot be called from
10724 * the worker thread which processes mailbox completion.
10725 * This function is called in the context of HBA management
10727 * This function returns MBX_SUCCESS when successful.
10728 * This function is called with no lock held.
10731 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
10734 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
10735 MAILBOX_t
*mb
= NULL
;
10737 unsigned long flag
;
10739 /* The caller might set context1 for extended buffer */
10740 if (pmboxq
->context1
)
10741 mb
= (MAILBOX_t
*)pmboxq
->context1
;
10743 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
10744 /* setup wake call as IOCB callback */
10745 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
10746 /* setup context field to pass wait_queue pointer to wake function */
10747 pmboxq
->context1
= &done_q
;
10749 /* now issue the command */
10750 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
10751 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
10752 wait_event_interruptible_timeout(done_q
,
10753 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
10754 msecs_to_jiffies(timeout
* 1000));
10756 spin_lock_irqsave(&phba
->hbalock
, flag
);
10757 /* restore the possible extended buffer for free resource */
10758 pmboxq
->context1
= (uint8_t *)mb
;
10760 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10761 * else do not free the resources.
10763 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
10764 retval
= MBX_SUCCESS
;
10766 retval
= MBX_TIMEOUT
;
10767 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10769 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
10771 /* restore the possible extended buffer for free resource */
10772 pmboxq
->context1
= (uint8_t *)mb
;
10779 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10780 * @phba: Pointer to HBA context.
10782 * This function is called to shutdown the driver's mailbox sub-system.
10783 * It first marks the mailbox sub-system is in a block state to prevent
10784 * the asynchronous mailbox command from issued off the pending mailbox
10785 * command queue. If the mailbox command sub-system shutdown is due to
10786 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10787 * the mailbox sub-system flush routine to forcefully bring down the
10788 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10789 * as with offline or HBA function reset), this routine will wait for the
10790 * outstanding mailbox command to complete before invoking the mailbox
10791 * sub-system flush routine to gracefully bring down mailbox sub-system.
10794 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
, int mbx_action
)
10796 struct lpfc_sli
*psli
= &phba
->sli
;
10797 unsigned long timeout
;
10799 if (mbx_action
== LPFC_MBX_NO_WAIT
) {
10800 /* delay 100ms for port state */
10802 lpfc_sli_mbox_sys_flush(phba
);
10805 timeout
= msecs_to_jiffies(LPFC_MBOX_TMO
* 1000) + jiffies
;
10807 spin_lock_irq(&phba
->hbalock
);
10808 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
10810 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
10811 /* Determine how long we might wait for the active mailbox
10812 * command to be gracefully completed by firmware.
10814 if (phba
->sli
.mbox_active
)
10815 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
10816 phba
->sli
.mbox_active
) *
10818 spin_unlock_irq(&phba
->hbalock
);
10820 while (phba
->sli
.mbox_active
) {
10821 /* Check active mailbox complete status every 2ms */
10823 if (time_after(jiffies
, timeout
))
10824 /* Timeout, let the mailbox flush routine to
10825 * forcefully release active mailbox command
10830 spin_unlock_irq(&phba
->hbalock
);
10832 lpfc_sli_mbox_sys_flush(phba
);
10836 * lpfc_sli_eratt_read - read sli-3 error attention events
10837 * @phba: Pointer to HBA context.
10839 * This function is called to read the SLI3 device error attention registers
10840 * for possible error attention events. The caller must hold the hostlock
10841 * with spin_lock_irq().
10843 * This function returns 1 when there is Error Attention in the Host Attention
10844 * Register and returns 0 otherwise.
10847 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
10851 /* Read chip Host Attention (HA) register */
10852 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
10855 if (ha_copy
& HA_ERATT
) {
10856 /* Read host status register to retrieve error event */
10857 if (lpfc_sli_read_hs(phba
))
10860 /* Check if there is a deferred error condition is active */
10861 if ((HS_FFER1
& phba
->work_hs
) &&
10862 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
10863 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
10864 phba
->hba_flag
|= DEFER_ERATT
;
10865 /* Clear all interrupt enable conditions */
10866 writel(0, phba
->HCregaddr
);
10867 readl(phba
->HCregaddr
);
10870 /* Set the driver HA work bitmap */
10871 phba
->work_ha
|= HA_ERATT
;
10872 /* Indicate polling handles this ERATT */
10873 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10879 /* Set the driver HS work bitmap */
10880 phba
->work_hs
|= UNPLUG_ERR
;
10881 /* Set the driver HA work bitmap */
10882 phba
->work_ha
|= HA_ERATT
;
10883 /* Indicate polling handles this ERATT */
10884 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10889 * lpfc_sli4_eratt_read - read sli-4 error attention events
10890 * @phba: Pointer to HBA context.
10892 * This function is called to read the SLI4 device error attention registers
10893 * for possible error attention events. The caller must hold the hostlock
10894 * with spin_lock_irq().
10896 * This function returns 1 when there is Error Attention in the Host Attention
10897 * Register and returns 0 otherwise.
10900 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
10902 uint32_t uerr_sta_hi
, uerr_sta_lo
;
10903 uint32_t if_type
, portsmphr
;
10904 struct lpfc_register portstat_reg
;
10907 * For now, use the SLI4 device internal unrecoverable error
10908 * registers for error attention. This can be changed later.
10910 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
10912 case LPFC_SLI_INTF_IF_TYPE_0
:
10913 if (lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
,
10915 lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
,
10917 phba
->work_hs
|= UNPLUG_ERR
;
10918 phba
->work_ha
|= HA_ERATT
;
10919 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10922 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
10923 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
10924 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10925 "1423 HBA Unrecoverable error: "
10926 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10927 "ue_mask_lo_reg=0x%x, "
10928 "ue_mask_hi_reg=0x%x\n",
10929 uerr_sta_lo
, uerr_sta_hi
,
10930 phba
->sli4_hba
.ue_mask_lo
,
10931 phba
->sli4_hba
.ue_mask_hi
);
10932 phba
->work_status
[0] = uerr_sta_lo
;
10933 phba
->work_status
[1] = uerr_sta_hi
;
10934 phba
->work_ha
|= HA_ERATT
;
10935 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10939 case LPFC_SLI_INTF_IF_TYPE_2
:
10940 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
10941 &portstat_reg
.word0
) ||
10942 lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
10944 phba
->work_hs
|= UNPLUG_ERR
;
10945 phba
->work_ha
|= HA_ERATT
;
10946 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10949 if (bf_get(lpfc_sliport_status_err
, &portstat_reg
)) {
10950 phba
->work_status
[0] =
10951 readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
10952 phba
->work_status
[1] =
10953 readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
10954 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10955 "2885 Port Status Event: "
10956 "port status reg 0x%x, "
10957 "port smphr reg 0x%x, "
10958 "error 1=0x%x, error 2=0x%x\n",
10959 portstat_reg
.word0
,
10961 phba
->work_status
[0],
10962 phba
->work_status
[1]);
10963 phba
->work_ha
|= HA_ERATT
;
10964 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10968 case LPFC_SLI_INTF_IF_TYPE_1
:
10970 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10971 "2886 HBA Error Attention on unsupported "
10972 "if type %d.", if_type
);
10980 * lpfc_sli_check_eratt - check error attention events
10981 * @phba: Pointer to HBA context.
10983 * This function is called from timer soft interrupt context to check HBA's
10984 * error attention register bit for error attention events.
10986 * This function returns 1 when there is Error Attention in the Host Attention
10987 * Register and returns 0 otherwise.
10990 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
10994 /* If somebody is waiting to handle an eratt, don't process it
10995 * here. The brdkill function will do this.
10997 if (phba
->link_flag
& LS_IGNORE_ERATT
)
11000 /* Check if interrupt handler handles this ERATT */
11001 spin_lock_irq(&phba
->hbalock
);
11002 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
11003 /* Interrupt handler has handled ERATT */
11004 spin_unlock_irq(&phba
->hbalock
);
11009 * If there is deferred error attention, do not check for error
11012 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11013 spin_unlock_irq(&phba
->hbalock
);
11017 /* If PCI channel is offline, don't process it */
11018 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
11019 spin_unlock_irq(&phba
->hbalock
);
11023 switch (phba
->sli_rev
) {
11024 case LPFC_SLI_REV2
:
11025 case LPFC_SLI_REV3
:
11026 /* Read chip Host Attention (HA) register */
11027 ha_copy
= lpfc_sli_eratt_read(phba
);
11029 case LPFC_SLI_REV4
:
11030 /* Read device Uncoverable Error (UERR) registers */
11031 ha_copy
= lpfc_sli4_eratt_read(phba
);
11034 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11035 "0299 Invalid SLI revision (%d)\n",
11040 spin_unlock_irq(&phba
->hbalock
);
11046 * lpfc_intr_state_check - Check device state for interrupt handling
11047 * @phba: Pointer to HBA context.
11049 * This inline routine checks whether a device or its PCI slot is in a state
11050 * that the interrupt should be handled.
11052 * This function returns 0 if the device or the PCI slot is in a state that
11053 * interrupt should be handled, otherwise -EIO.
11056 lpfc_intr_state_check(struct lpfc_hba
*phba
)
11058 /* If the pci channel is offline, ignore all the interrupts */
11059 if (unlikely(pci_channel_offline(phba
->pcidev
)))
11062 /* Update device level interrupt statistics */
11063 phba
->sli
.slistat
.sli_intr
++;
11065 /* Ignore all interrupts during initialization. */
11066 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
11073 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11074 * @irq: Interrupt number.
11075 * @dev_id: The device context pointer.
11077 * This function is directly called from the PCI layer as an interrupt
11078 * service routine when device with SLI-3 interface spec is enabled with
11079 * MSI-X multi-message interrupt mode and there are slow-path events in
11080 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11081 * interrupt mode, this function is called as part of the device-level
11082 * interrupt handler. When the PCI slot is in error recovery or the HBA
11083 * is undergoing initialization, the interrupt handler will not process
11084 * the interrupt. The link attention and ELS ring attention events are
11085 * handled by the worker thread. The interrupt handler signals the worker
11086 * thread and returns for these events. This function is called without
11087 * any lock held. It gets the hbalock to access and update SLI data
11090 * This function returns IRQ_HANDLED when interrupt is handled else it
11091 * returns IRQ_NONE.
11094 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
11096 struct lpfc_hba
*phba
;
11097 uint32_t ha_copy
, hc_copy
;
11098 uint32_t work_ha_copy
;
11099 unsigned long status
;
11100 unsigned long iflag
;
11103 MAILBOX_t
*mbox
, *pmbox
;
11104 struct lpfc_vport
*vport
;
11105 struct lpfc_nodelist
*ndlp
;
11106 struct lpfc_dmabuf
*mp
;
11111 * Get the driver's phba structure from the dev_id and
11112 * assume the HBA is not interrupting.
11114 phba
= (struct lpfc_hba
*)dev_id
;
11116 if (unlikely(!phba
))
11120 * Stuff needs to be attented to when this function is invoked as an
11121 * individual interrupt handler in MSI-X multi-message interrupt mode
11123 if (phba
->intr_type
== MSIX
) {
11124 /* Check device state for handling interrupt */
11125 if (lpfc_intr_state_check(phba
))
11127 /* Need to read HA REG for slow-path events */
11128 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11129 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
11131 /* If somebody is waiting to handle an eratt don't process it
11132 * here. The brdkill function will do this.
11134 if (phba
->link_flag
& LS_IGNORE_ERATT
)
11135 ha_copy
&= ~HA_ERATT
;
11136 /* Check the need for handling ERATT in interrupt handler */
11137 if (ha_copy
& HA_ERATT
) {
11138 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
11139 /* ERATT polling has handled ERATT */
11140 ha_copy
&= ~HA_ERATT
;
11142 /* Indicate interrupt handler handles ERATT */
11143 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
11147 * If there is deferred error attention, do not check for any
11150 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11151 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11155 /* Clear up only attention source related to slow-path */
11156 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
11159 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
11160 HC_LAINT_ENA
| HC_ERINT_ENA
),
11162 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
11164 writel(hc_copy
, phba
->HCregaddr
);
11165 readl(phba
->HAregaddr
); /* flush */
11166 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11168 ha_copy
= phba
->ha_copy
;
11170 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
11172 if (work_ha_copy
) {
11173 if (work_ha_copy
& HA_LATT
) {
11174 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
11176 * Turn off Link Attention interrupts
11177 * until CLEAR_LA done
11179 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11180 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
11181 if (lpfc_readl(phba
->HCregaddr
, &control
))
11183 control
&= ~HC_LAINT_ENA
;
11184 writel(control
, phba
->HCregaddr
);
11185 readl(phba
->HCregaddr
); /* flush */
11186 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11189 work_ha_copy
&= ~HA_LATT
;
11192 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
11194 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11195 * the only slow ring.
11197 status
= (work_ha_copy
&
11198 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
11199 status
>>= (4*LPFC_ELS_RING
);
11200 if (status
& HA_RXMASK
) {
11201 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11202 if (lpfc_readl(phba
->HCregaddr
, &control
))
11205 lpfc_debugfs_slow_ring_trc(phba
,
11206 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11208 (uint32_t)phba
->sli
.slistat
.sli_intr
);
11210 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
11211 lpfc_debugfs_slow_ring_trc(phba
,
11212 "ISR Disable ring:"
11213 "pwork:x%x hawork:x%x wait:x%x",
11214 phba
->work_ha
, work_ha_copy
,
11215 (uint32_t)((unsigned long)
11216 &phba
->work_waitq
));
11219 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
11220 writel(control
, phba
->HCregaddr
);
11221 readl(phba
->HCregaddr
); /* flush */
11224 lpfc_debugfs_slow_ring_trc(phba
,
11225 "ISR slow ring: pwork:"
11226 "x%x hawork:x%x wait:x%x",
11227 phba
->work_ha
, work_ha_copy
,
11228 (uint32_t)((unsigned long)
11229 &phba
->work_waitq
));
11231 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11234 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11235 if (work_ha_copy
& HA_ERATT
) {
11236 if (lpfc_sli_read_hs(phba
))
11239 * Check if there is a deferred error condition
11242 if ((HS_FFER1
& phba
->work_hs
) &&
11243 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
11244 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
11246 phba
->hba_flag
|= DEFER_ERATT
;
11247 /* Clear all interrupt enable conditions */
11248 writel(0, phba
->HCregaddr
);
11249 readl(phba
->HCregaddr
);
11253 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
11254 pmb
= phba
->sli
.mbox_active
;
11255 pmbox
= &pmb
->u
.mb
;
11257 vport
= pmb
->vport
;
11259 /* First check out the status word */
11260 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
11261 if (pmbox
->mbxOwner
!= OWN_HOST
) {
11262 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11264 * Stray Mailbox Interrupt, mbxCommand <cmd>
11265 * mbxStatus <status>
11267 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11269 "(%d):0304 Stray Mailbox "
11270 "Interrupt mbxCommand x%x "
11272 (vport
? vport
->vpi
: 0),
11275 /* clear mailbox attention bit */
11276 work_ha_copy
&= ~HA_MBATT
;
11278 phba
->sli
.mbox_active
= NULL
;
11279 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11280 phba
->last_completion_time
= jiffies
;
11281 del_timer(&phba
->sli
.mbox_tmo
);
11282 if (pmb
->mbox_cmpl
) {
11283 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
11285 if (pmb
->out_ext_byte_len
&&
11287 lpfc_sli_pcimem_bcopy(
11290 pmb
->out_ext_byte_len
);
11292 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
11293 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
11295 lpfc_debugfs_disc_trc(vport
,
11296 LPFC_DISC_TRC_MBOX_VPORT
,
11297 "MBOX dflt rpi: : "
11298 "status:x%x rpi:x%x",
11299 (uint32_t)pmbox
->mbxStatus
,
11300 pmbox
->un
.varWords
[0], 0);
11302 if (!pmbox
->mbxStatus
) {
11303 mp
= (struct lpfc_dmabuf
*)
11305 ndlp
= (struct lpfc_nodelist
*)
11308 /* Reg_LOGIN of dflt RPI was
11309 * successful. new lets get
11310 * rid of the RPI using the
11311 * same mbox buffer.
11313 lpfc_unreg_login(phba
,
11315 pmbox
->un
.varWords
[0],
11318 lpfc_mbx_cmpl_dflt_rpi
;
11319 pmb
->context1
= mp
;
11320 pmb
->context2
= ndlp
;
11321 pmb
->vport
= vport
;
11322 rc
= lpfc_sli_issue_mbox(phba
,
11325 if (rc
!= MBX_BUSY
)
11326 lpfc_printf_log(phba
,
11328 LOG_MBOX
| LOG_SLI
,
11329 "0350 rc should have"
11330 "been MBX_BUSY\n");
11331 if (rc
!= MBX_NOT_FINISHED
)
11332 goto send_current_mbox
;
11336 &phba
->pport
->work_port_lock
,
11338 phba
->pport
->work_port_events
&=
11340 spin_unlock_irqrestore(
11341 &phba
->pport
->work_port_lock
,
11343 lpfc_mbox_cmpl_put(phba
, pmb
);
11346 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11348 if ((work_ha_copy
& HA_MBATT
) &&
11349 (phba
->sli
.mbox_active
== NULL
)) {
11351 /* Process next mailbox command if there is one */
11353 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
11355 } while (rc
== MBX_NOT_FINISHED
);
11356 if (rc
!= MBX_SUCCESS
)
11357 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11358 LOG_SLI
, "0349 rc should be "
11362 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11363 phba
->work_ha
|= work_ha_copy
;
11364 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11365 lpfc_worker_wake_up(phba
);
11367 return IRQ_HANDLED
;
11369 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11370 return IRQ_HANDLED
;
11372 } /* lpfc_sli_sp_intr_handler */
11375 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11376 * @irq: Interrupt number.
11377 * @dev_id: The device context pointer.
11379 * This function is directly called from the PCI layer as an interrupt
11380 * service routine when device with SLI-3 interface spec is enabled with
11381 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11382 * ring event in the HBA. However, when the device is enabled with either
11383 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11384 * device-level interrupt handler. When the PCI slot is in error recovery
11385 * or the HBA is undergoing initialization, the interrupt handler will not
11386 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11387 * the intrrupt context. This function is called without any lock held.
11388 * It gets the hbalock to access and update SLI data structures.
11390 * This function returns IRQ_HANDLED when interrupt is handled else it
11391 * returns IRQ_NONE.
11394 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
11396 struct lpfc_hba
*phba
;
11398 unsigned long status
;
11399 unsigned long iflag
;
11401 /* Get the driver's phba structure from the dev_id and
11402 * assume the HBA is not interrupting.
11404 phba
= (struct lpfc_hba
*) dev_id
;
11406 if (unlikely(!phba
))
11410 * Stuff needs to be attented to when this function is invoked as an
11411 * individual interrupt handler in MSI-X multi-message interrupt mode
11413 if (phba
->intr_type
== MSIX
) {
11414 /* Check device state for handling interrupt */
11415 if (lpfc_intr_state_check(phba
))
11417 /* Need to read HA REG for FCP ring and other ring events */
11418 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
11419 return IRQ_HANDLED
;
11420 /* Clear up only attention source related to fast-path */
11421 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11423 * If there is deferred error attention, do not check for
11426 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11427 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11430 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
11432 readl(phba
->HAregaddr
); /* flush */
11433 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11435 ha_copy
= phba
->ha_copy
;
11438 * Process all events on FCP ring. Take the optimized path for FCP IO.
11440 ha_copy
&= ~(phba
->work_ha_mask
);
11442 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
11443 status
>>= (4*LPFC_FCP_RING
);
11444 if (status
& HA_RXMASK
)
11445 lpfc_sli_handle_fast_ring_event(phba
,
11446 &phba
->sli
.ring
[LPFC_FCP_RING
],
11449 if (phba
->cfg_multi_ring_support
== 2) {
11451 * Process all events on extra ring. Take the optimized path
11452 * for extra ring IO.
11454 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
11455 status
>>= (4*LPFC_EXTRA_RING
);
11456 if (status
& HA_RXMASK
) {
11457 lpfc_sli_handle_fast_ring_event(phba
,
11458 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
11462 return IRQ_HANDLED
;
11463 } /* lpfc_sli_fp_intr_handler */
11466 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11467 * @irq: Interrupt number.
11468 * @dev_id: The device context pointer.
11470 * This function is the HBA device-level interrupt handler to device with
11471 * SLI-3 interface spec, called from the PCI layer when either MSI or
11472 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11473 * requires driver attention. This function invokes the slow-path interrupt
11474 * attention handling function and fast-path interrupt attention handling
11475 * function in turn to process the relevant HBA attention events. This
11476 * function is called without any lock held. It gets the hbalock to access
11477 * and update SLI data structures.
11479 * This function returns IRQ_HANDLED when interrupt is handled, else it
11480 * returns IRQ_NONE.
11483 lpfc_sli_intr_handler(int irq
, void *dev_id
)
11485 struct lpfc_hba
*phba
;
11486 irqreturn_t sp_irq_rc
, fp_irq_rc
;
11487 unsigned long status1
, status2
;
11491 * Get the driver's phba structure from the dev_id and
11492 * assume the HBA is not interrupting.
11494 phba
= (struct lpfc_hba
*) dev_id
;
11496 if (unlikely(!phba
))
11499 /* Check device state for handling interrupt */
11500 if (lpfc_intr_state_check(phba
))
11503 spin_lock(&phba
->hbalock
);
11504 if (lpfc_readl(phba
->HAregaddr
, &phba
->ha_copy
)) {
11505 spin_unlock(&phba
->hbalock
);
11506 return IRQ_HANDLED
;
11509 if (unlikely(!phba
->ha_copy
)) {
11510 spin_unlock(&phba
->hbalock
);
11512 } else if (phba
->ha_copy
& HA_ERATT
) {
11513 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
11514 /* ERATT polling has handled ERATT */
11515 phba
->ha_copy
&= ~HA_ERATT
;
11517 /* Indicate interrupt handler handles ERATT */
11518 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
11522 * If there is deferred error attention, do not check for any interrupt.
11524 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11525 spin_unlock(&phba
->hbalock
);
11529 /* Clear attention sources except link and error attentions */
11530 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
)) {
11531 spin_unlock(&phba
->hbalock
);
11532 return IRQ_HANDLED
;
11534 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
11535 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
11537 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
11538 writel(hc_copy
, phba
->HCregaddr
);
11539 readl(phba
->HAregaddr
); /* flush */
11540 spin_unlock(&phba
->hbalock
);
11543 * Invokes slow-path host attention interrupt handling as appropriate.
11546 /* status of events with mailbox and link attention */
11547 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
11549 /* status of events with ELS ring */
11550 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
11551 status2
>>= (4*LPFC_ELS_RING
);
11553 if (status1
|| (status2
& HA_RXMASK
))
11554 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
11556 sp_irq_rc
= IRQ_NONE
;
11559 * Invoke fast-path host attention interrupt handling as appropriate.
11562 /* status of events with FCP ring */
11563 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
11564 status1
>>= (4*LPFC_FCP_RING
);
11566 /* status of events with extra ring */
11567 if (phba
->cfg_multi_ring_support
== 2) {
11568 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
11569 status2
>>= (4*LPFC_EXTRA_RING
);
11573 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
11574 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
11576 fp_irq_rc
= IRQ_NONE
;
11578 /* Return device-level interrupt handling status */
11579 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
11580 } /* lpfc_sli_intr_handler */
11583 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11584 * @phba: pointer to lpfc hba data structure.
11586 * This routine is invoked by the worker thread to process all the pending
11587 * SLI4 FCP abort XRI events.
11589 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
11591 struct lpfc_cq_event
*cq_event
;
11593 /* First, declare the fcp xri abort event has been handled */
11594 spin_lock_irq(&phba
->hbalock
);
11595 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
11596 spin_unlock_irq(&phba
->hbalock
);
11597 /* Now, handle all the fcp xri abort events */
11598 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
11599 /* Get the first event from the head of the event queue */
11600 spin_lock_irq(&phba
->hbalock
);
11601 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
11602 cq_event
, struct lpfc_cq_event
, list
);
11603 spin_unlock_irq(&phba
->hbalock
);
11604 /* Notify aborted XRI for FCP work queue */
11605 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
11606 /* Free the event processed back to the free pool */
11607 lpfc_sli4_cq_event_release(phba
, cq_event
);
11612 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11613 * @phba: pointer to lpfc hba data structure.
11615 * This routine is invoked by the worker thread to process all the pending
11616 * SLI4 els abort xri events.
11618 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
11620 struct lpfc_cq_event
*cq_event
;
11622 /* First, declare the els xri abort event has been handled */
11623 spin_lock_irq(&phba
->hbalock
);
11624 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
11625 spin_unlock_irq(&phba
->hbalock
);
11626 /* Now, handle all the els xri abort events */
11627 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
11628 /* Get the first event from the head of the event queue */
11629 spin_lock_irq(&phba
->hbalock
);
11630 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
11631 cq_event
, struct lpfc_cq_event
, list
);
11632 spin_unlock_irq(&phba
->hbalock
);
11633 /* Notify aborted XRI for ELS work queue */
11634 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
11635 /* Free the event processed back to the free pool */
11636 lpfc_sli4_cq_event_release(phba
, cq_event
);
11641 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11642 * @phba: pointer to lpfc hba data structure
11643 * @pIocbIn: pointer to the rspiocbq
11644 * @pIocbOut: pointer to the cmdiocbq
11645 * @wcqe: pointer to the complete wcqe
11647 * This routine transfers the fields of a command iocbq to a response iocbq
11648 * by copying all the IOCB fields from command iocbq and transferring the
11649 * completion status information from the complete wcqe.
11652 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
11653 struct lpfc_iocbq
*pIocbIn
,
11654 struct lpfc_iocbq
*pIocbOut
,
11655 struct lpfc_wcqe_complete
*wcqe
)
11658 unsigned long iflags
;
11659 uint32_t status
, max_response
;
11660 struct lpfc_dmabuf
*dmabuf
;
11661 struct ulp_bde64
*bpl
, bde
;
11662 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
11664 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
11665 sizeof(struct lpfc_iocbq
) - offset
);
11666 /* Map WCQE parameters into irspiocb parameters */
11667 status
= bf_get(lpfc_wcqe_c_status
, wcqe
);
11668 pIocbIn
->iocb
.ulpStatus
= (status
& LPFC_IOCB_STATUS_MASK
);
11669 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
11670 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
11671 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
11672 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
11673 wcqe
->total_data_placed
;
11675 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11677 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11678 switch (pIocbOut
->iocb
.ulpCommand
) {
11679 case CMD_ELS_REQUEST64_CR
:
11680 dmabuf
= (struct lpfc_dmabuf
*)pIocbOut
->context3
;
11681 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
11682 bde
.tus
.w
= le32_to_cpu(bpl
[1].tus
.w
);
11683 max_response
= bde
.tus
.f
.bdeSize
;
11685 case CMD_GEN_REQUEST64_CR
:
11687 if (!pIocbOut
->context3
)
11689 numBdes
= pIocbOut
->iocb
.un
.genreq64
.bdl
.bdeSize
/
11690 sizeof(struct ulp_bde64
);
11691 dmabuf
= (struct lpfc_dmabuf
*)pIocbOut
->context3
;
11692 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
11693 for (i
= 0; i
< numBdes
; i
++) {
11694 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
11695 if (bde
.tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
11696 max_response
+= bde
.tus
.f
.bdeSize
;
11700 max_response
= wcqe
->total_data_placed
;
11703 if (max_response
< wcqe
->total_data_placed
)
11704 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= max_response
;
11706 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
=
11707 wcqe
->total_data_placed
;
11710 /* Convert BG errors for completion status */
11711 if (status
== CQE_STATUS_DI_ERROR
) {
11712 pIocbIn
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
11714 if (bf_get(lpfc_wcqe_c_bg_edir
, wcqe
))
11715 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_RX_DMA_FAILED
;
11717 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_TX_DMA_FAILED
;
11719 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
= 0;
11720 if (bf_get(lpfc_wcqe_c_bg_ge
, wcqe
)) /* Guard Check failed */
11721 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11722 BGS_GUARD_ERR_MASK
;
11723 if (bf_get(lpfc_wcqe_c_bg_ae
, wcqe
)) /* App Tag Check failed */
11724 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11725 BGS_APPTAG_ERR_MASK
;
11726 if (bf_get(lpfc_wcqe_c_bg_re
, wcqe
)) /* Ref Tag Check failed */
11727 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11728 BGS_REFTAG_ERR_MASK
;
11730 /* Check to see if there was any good data before the error */
11731 if (bf_get(lpfc_wcqe_c_bg_tdpv
, wcqe
)) {
11732 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11733 BGS_HI_WATER_MARK_PRESENT_MASK
;
11734 pIocbIn
->iocb
.unsli3
.sli3_bg
.bghm
=
11735 wcqe
->total_data_placed
;
11739 * Set ALL the error bits to indicate we don't know what
11740 * type of error it is.
11742 if (!pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
)
11743 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11744 (BGS_REFTAG_ERR_MASK
| BGS_APPTAG_ERR_MASK
|
11745 BGS_GUARD_ERR_MASK
);
11748 /* Pick up HBA exchange busy condition */
11749 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
11750 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11751 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
11752 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11757 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11758 * @phba: Pointer to HBA context object.
11759 * @wcqe: Pointer to work-queue completion queue entry.
11761 * This routine handles an ELS work-queue completion event and construct
11762 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11763 * discovery engine to handle.
11765 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11767 static struct lpfc_iocbq
*
11768 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
11769 struct lpfc_iocbq
*irspiocbq
)
11771 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
11772 struct lpfc_iocbq
*cmdiocbq
;
11773 struct lpfc_wcqe_complete
*wcqe
;
11774 unsigned long iflags
;
11776 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
11777 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
11778 pring
->stats
.iocb_event
++;
11779 /* Look up the ELS command IOCB and create pseudo response IOCB */
11780 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
11781 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11782 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
11784 if (unlikely(!cmdiocbq
)) {
11785 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11786 "0386 ELS complete with no corresponding "
11787 "cmdiocb: iotag (%d)\n",
11788 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11789 lpfc_sli_release_iocbq(phba
, irspiocbq
);
11793 /* Fake the irspiocbq and copy necessary response information */
11794 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
11800 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11801 * @phba: Pointer to HBA context object.
11802 * @cqe: Pointer to mailbox completion queue entry.
11804 * This routine process a mailbox completion queue entry with asynchrous
11807 * Return: true if work posted to worker thread, otherwise false.
11810 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11812 struct lpfc_cq_event
*cq_event
;
11813 unsigned long iflags
;
11815 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
11816 "0392 Async Event: word0:x%x, word1:x%x, "
11817 "word2:x%x, word3:x%x\n", mcqe
->word0
,
11818 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
11820 /* Allocate a new internal CQ_EVENT entry */
11821 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
11823 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11824 "0394 Failed to allocate CQ_EVENT entry\n");
11828 /* Move the CQE into an asynchronous event entry */
11829 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
11830 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11831 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
11832 /* Set the async event flag */
11833 phba
->hba_flag
|= ASYNC_EVENT
;
11834 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11840 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11841 * @phba: Pointer to HBA context object.
11842 * @cqe: Pointer to mailbox completion queue entry.
11844 * This routine process a mailbox completion queue entry with mailbox
11845 * completion event.
11847 * Return: true if work posted to worker thread, otherwise false.
11850 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11852 uint32_t mcqe_status
;
11853 MAILBOX_t
*mbox
, *pmbox
;
11854 struct lpfc_mqe
*mqe
;
11855 struct lpfc_vport
*vport
;
11856 struct lpfc_nodelist
*ndlp
;
11857 struct lpfc_dmabuf
*mp
;
11858 unsigned long iflags
;
11860 bool workposted
= false;
11863 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11864 if (!bf_get(lpfc_trailer_completed
, mcqe
))
11865 goto out_no_mqe_complete
;
11867 /* Get the reference to the active mbox command */
11868 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11869 pmb
= phba
->sli
.mbox_active
;
11870 if (unlikely(!pmb
)) {
11871 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
11872 "1832 No pending MBOX command to handle\n");
11873 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11874 goto out_no_mqe_complete
;
11876 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11878 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
11880 vport
= pmb
->vport
;
11882 /* Reset heartbeat timer */
11883 phba
->last_completion_time
= jiffies
;
11884 del_timer(&phba
->sli
.mbox_tmo
);
11886 /* Move mbox data to caller's mailbox region, do endian swapping */
11887 if (pmb
->mbox_cmpl
&& mbox
)
11888 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
11891 * For mcqe errors, conditionally move a modified error code to
11892 * the mbox so that the error will not be missed.
11894 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
11895 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
11896 if (bf_get(lpfc_mqe_status
, mqe
) == MBX_SUCCESS
)
11897 bf_set(lpfc_mqe_status
, mqe
,
11898 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
11900 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
11901 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
11902 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
11903 "MBOX dflt rpi: status:x%x rpi:x%x",
11905 pmbox
->un
.varWords
[0], 0);
11906 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
11907 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
11908 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
11909 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11910 * RID of the PPI using the same mbox buffer.
11912 lpfc_unreg_login(phba
, vport
->vpi
,
11913 pmbox
->un
.varWords
[0], pmb
);
11914 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
11915 pmb
->context1
= mp
;
11916 pmb
->context2
= ndlp
;
11917 pmb
->vport
= vport
;
11918 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
11919 if (rc
!= MBX_BUSY
)
11920 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11921 LOG_SLI
, "0385 rc should "
11922 "have been MBX_BUSY\n");
11923 if (rc
!= MBX_NOT_FINISHED
)
11924 goto send_current_mbox
;
11927 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
11928 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
11929 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
11931 /* There is mailbox completion work to do */
11932 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11933 __lpfc_mbox_cmpl_put(phba
, pmb
);
11934 phba
->work_ha
|= HA_MBATT
;
11935 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11939 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11940 /* Release the mailbox command posting token */
11941 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
11942 /* Setting active mailbox pointer need to be in sync to flag clear */
11943 phba
->sli
.mbox_active
= NULL
;
11944 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11945 /* Wake up worker thread to post the next pending mailbox command */
11946 lpfc_worker_wake_up(phba
);
11947 out_no_mqe_complete
:
11948 if (bf_get(lpfc_trailer_consumed
, mcqe
))
11949 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
11954 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11955 * @phba: Pointer to HBA context object.
11956 * @cqe: Pointer to mailbox completion queue entry.
11958 * This routine process a mailbox completion queue entry, it invokes the
11959 * proper mailbox complete handling or asynchrous event handling routine
11960 * according to the MCQE's async bit.
11962 * Return: true if work posted to worker thread, otherwise false.
11965 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
11967 struct lpfc_mcqe mcqe
;
11970 /* Copy the mailbox MCQE and convert endian order as needed */
11971 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
11973 /* Invoke the proper event handling routine */
11974 if (!bf_get(lpfc_trailer_async
, &mcqe
))
11975 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
11977 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
11982 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
11983 * @phba: Pointer to HBA context object.
11984 * @cq: Pointer to associated CQ
11985 * @wcqe: Pointer to work-queue completion queue entry.
11987 * This routine handles an ELS work-queue completion event.
11989 * Return: true if work posted to worker thread, otherwise false.
11992 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
11993 struct lpfc_wcqe_complete
*wcqe
)
11995 struct lpfc_iocbq
*irspiocbq
;
11996 unsigned long iflags
;
11997 struct lpfc_sli_ring
*pring
= cq
->pring
;
11999 int txcmplq_cnt
= 0;
12000 int fcp_txcmplq_cnt
= 0;
12002 /* Get an irspiocbq for later ELS response processing use */
12003 irspiocbq
= lpfc_sli_get_iocbq(phba
);
12005 if (!list_empty(&pring
->txq
))
12007 if (!list_empty(&pring
->txcmplq
))
12009 if (!list_empty(&phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq
))
12011 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12012 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12013 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12014 txq_cnt
, phba
->iocb_cnt
,
12020 /* Save off the slow-path queue event for work thread to process */
12021 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
12022 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12023 list_add_tail(&irspiocbq
->cq_event
.list
,
12024 &phba
->sli4_hba
.sp_queue_event
);
12025 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
12026 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12032 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12033 * @phba: Pointer to HBA context object.
12034 * @wcqe: Pointer to work-queue completion queue entry.
12036 * This routine handles slow-path WQ entry comsumed event by invoking the
12037 * proper WQ release routine to the slow-path WQ.
12040 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
12041 struct lpfc_wcqe_release
*wcqe
)
12043 /* sanity check on queue memory */
12044 if (unlikely(!phba
->sli4_hba
.els_wq
))
12046 /* Check for the slow-path ELS work queue */
12047 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
12048 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
12049 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
12051 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12052 "2579 Slow-path wqe consume event carries "
12053 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12054 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
12055 phba
->sli4_hba
.els_wq
->queue_id
);
12059 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12060 * @phba: Pointer to HBA context object.
12061 * @cq: Pointer to a WQ completion queue.
12062 * @wcqe: Pointer to work-queue completion queue entry.
12064 * This routine handles an XRI abort event.
12066 * Return: true if work posted to worker thread, otherwise false.
12069 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
12070 struct lpfc_queue
*cq
,
12071 struct sli4_wcqe_xri_aborted
*wcqe
)
12073 bool workposted
= false;
12074 struct lpfc_cq_event
*cq_event
;
12075 unsigned long iflags
;
12077 /* Allocate a new internal CQ_EVENT entry */
12078 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
12080 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12081 "0602 Failed to allocate CQ_EVENT entry\n");
12085 /* Move the CQE into the proper xri abort event list */
12086 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
12087 switch (cq
->subtype
) {
12089 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12090 list_add_tail(&cq_event
->list
,
12091 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
12092 /* Set the fcp xri abort event flag */
12093 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
12094 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12098 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12099 list_add_tail(&cq_event
->list
,
12100 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
12101 /* Set the els xri abort event flag */
12102 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
12103 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12107 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12108 "0603 Invalid work queue CQE subtype (x%x)\n",
12110 workposted
= false;
12117 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12118 * @phba: Pointer to HBA context object.
12119 * @rcqe: Pointer to receive-queue completion queue entry.
12121 * This routine process a receive-queue completion queue entry.
12123 * Return: true if work posted to worker thread, otherwise false.
12126 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
12128 bool workposted
= false;
12129 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
12130 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
12131 struct hbq_dmabuf
*dma_buf
;
12132 uint32_t status
, rq_id
;
12133 unsigned long iflags
;
12135 /* sanity check on queue memory */
12136 if (unlikely(!hrq
) || unlikely(!drq
))
12139 if (bf_get(lpfc_cqe_code
, rcqe
) == CQE_CODE_RECEIVE_V1
)
12140 rq_id
= bf_get(lpfc_rcqe_rq_id_v1
, rcqe
);
12142 rq_id
= bf_get(lpfc_rcqe_rq_id
, rcqe
);
12143 if (rq_id
!= hrq
->queue_id
)
12146 status
= bf_get(lpfc_rcqe_status
, rcqe
);
12148 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
12149 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12150 "2537 Receive Frame Truncated!!\n");
12151 hrq
->RQ_buf_trunc
++;
12152 case FC_STATUS_RQ_SUCCESS
:
12153 lpfc_sli4_rq_release(hrq
, drq
);
12154 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12155 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
12157 hrq
->RQ_no_buf_found
++;
12158 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12162 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
12163 /* save off the frame for the word thread to process */
12164 list_add_tail(&dma_buf
->cq_event
.list
,
12165 &phba
->sli4_hba
.sp_queue_event
);
12166 /* Frame received */
12167 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
12168 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12171 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
12172 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
12173 hrq
->RQ_no_posted_buf
++;
12174 /* Post more buffers if possible */
12175 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12176 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
12177 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12186 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12187 * @phba: Pointer to HBA context object.
12188 * @cq: Pointer to the completion queue.
12189 * @wcqe: Pointer to a completion queue entry.
12191 * This routine process a slow-path work-queue or receive queue completion queue
12194 * Return: true if work posted to worker thread, otherwise false.
12197 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12198 struct lpfc_cqe
*cqe
)
12200 struct lpfc_cqe cqevt
;
12201 bool workposted
= false;
12203 /* Copy the work queue CQE and convert endian order if needed */
12204 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
12206 /* Check and process for different type of WCQE and dispatch */
12207 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
12208 case CQE_CODE_COMPL_WQE
:
12209 /* Process the WQ/RQ complete event */
12210 phba
->last_completion_time
= jiffies
;
12211 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
, cq
,
12212 (struct lpfc_wcqe_complete
*)&cqevt
);
12214 case CQE_CODE_RELEASE_WQE
:
12215 /* Process the WQ release event */
12216 lpfc_sli4_sp_handle_rel_wcqe(phba
,
12217 (struct lpfc_wcqe_release
*)&cqevt
);
12219 case CQE_CODE_XRI_ABORTED
:
12220 /* Process the WQ XRI abort event */
12221 phba
->last_completion_time
= jiffies
;
12222 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
12223 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
12225 case CQE_CODE_RECEIVE
:
12226 case CQE_CODE_RECEIVE_V1
:
12227 /* Process the RQ event */
12228 phba
->last_completion_time
= jiffies
;
12229 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
12230 (struct lpfc_rcqe
*)&cqevt
);
12233 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12234 "0388 Not a valid WCQE code: x%x\n",
12235 bf_get(lpfc_cqe_code
, &cqevt
));
12242 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12243 * @phba: Pointer to HBA context object.
12244 * @eqe: Pointer to fast-path event queue entry.
12246 * This routine process a event queue entry from the slow-path event queue.
12247 * It will check the MajorCode and MinorCode to determine this is for a
12248 * completion event on a completion queue, if not, an error shall be logged
12249 * and just return. Otherwise, it will get to the corresponding completion
12250 * queue and process all the entries on that completion queue, rearm the
12251 * completion queue, and then return.
12255 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
12256 struct lpfc_queue
*speq
)
12258 struct lpfc_queue
*cq
= NULL
, *childq
;
12259 struct lpfc_cqe
*cqe
;
12260 bool workposted
= false;
12264 /* Get the reference to the corresponding CQ */
12265 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12267 list_for_each_entry(childq
, &speq
->child_list
, list
) {
12268 if (childq
->queue_id
== cqid
) {
12273 if (unlikely(!cq
)) {
12274 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12275 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12276 "0365 Slow-path CQ identifier "
12277 "(%d) does not exist\n", cqid
);
12281 /* Process all the entries to the CQ */
12282 switch (cq
->type
) {
12284 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12285 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
12286 if (!(++ecount
% cq
->entry_repost
))
12287 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12292 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12293 if (cq
->subtype
== LPFC_FCP
)
12294 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
,
12297 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
,
12299 if (!(++ecount
% cq
->entry_repost
))
12300 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12303 /* Track the max number of CQEs processed in 1 EQ */
12304 if (ecount
> cq
->CQ_max_cqe
)
12305 cq
->CQ_max_cqe
= ecount
;
12308 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12309 "0370 Invalid completion queue type (%d)\n",
12314 /* Catch the no cq entry condition, log an error */
12315 if (unlikely(ecount
== 0))
12316 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12317 "0371 No entry from the CQ: identifier "
12318 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
12320 /* In any case, flash and re-arm the RCQ */
12321 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12323 /* wake up worker thread if there are works to be done */
12325 lpfc_worker_wake_up(phba
);
12329 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12330 * @phba: Pointer to HBA context object.
12331 * @cq: Pointer to associated CQ
12332 * @wcqe: Pointer to work-queue completion queue entry.
12334 * This routine process a fast-path work queue completion entry from fast-path
12335 * event queue for FCP command response completion.
12338 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12339 struct lpfc_wcqe_complete
*wcqe
)
12341 struct lpfc_sli_ring
*pring
= cq
->pring
;
12342 struct lpfc_iocbq
*cmdiocbq
;
12343 struct lpfc_iocbq irspiocbq
;
12344 unsigned long iflags
;
12346 /* Check for response status */
12347 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
12348 /* If resource errors reported from HBA, reduce queue
12349 * depth of the SCSI device.
12351 if (((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
12352 IOSTAT_LOCAL_REJECT
)) &&
12353 ((wcqe
->parameter
& IOERR_PARAM_MASK
) ==
12354 IOERR_NO_RESOURCES
))
12355 phba
->lpfc_rampdown_queue_depth(phba
);
12357 /* Log the error status */
12358 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12359 "0373 FCP complete error: status=x%x, "
12360 "hw_status=x%x, total_data_specified=%d, "
12361 "parameter=x%x, word3=x%x\n",
12362 bf_get(lpfc_wcqe_c_status
, wcqe
),
12363 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
12364 wcqe
->total_data_placed
, wcqe
->parameter
,
12368 /* Look up the FCP command IOCB and create pseudo response IOCB */
12369 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
12370 pring
->stats
.iocb_event
++;
12371 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
12372 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12373 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
12374 if (unlikely(!cmdiocbq
)) {
12375 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12376 "0374 FCP complete with no corresponding "
12377 "cmdiocb: iotag (%d)\n",
12378 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12381 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
12382 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12383 "0375 FCP cmdiocb not callback function "
12385 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12389 /* Fake the irspiocb and copy necessary response information */
12390 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
12392 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
12393 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12394 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
12395 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12398 /* Pass the cmd_iocb and the rsp state to the upper layer */
12399 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
12403 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12404 * @phba: Pointer to HBA context object.
12405 * @cq: Pointer to completion queue.
12406 * @wcqe: Pointer to work-queue completion queue entry.
12408 * This routine handles an fast-path WQ entry comsumed event by invoking the
12409 * proper WQ release routine to the slow-path WQ.
12412 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12413 struct lpfc_wcqe_release
*wcqe
)
12415 struct lpfc_queue
*childwq
;
12416 bool wqid_matched
= false;
12419 /* Check for fast-path FCP work queue release */
12420 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
12421 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
12422 if (childwq
->queue_id
== fcp_wqid
) {
12423 lpfc_sli4_wq_release(childwq
,
12424 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
12425 wqid_matched
= true;
12429 /* Report warning log message if no match found */
12430 if (wqid_matched
!= true)
12431 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12432 "2580 Fast-path wqe consume event carries "
12433 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
12437 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12438 * @cq: Pointer to the completion queue.
12439 * @eqe: Pointer to fast-path completion queue entry.
12441 * This routine process a fast-path work queue completion entry from fast-path
12442 * event queue for FCP command response completion.
12445 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12446 struct lpfc_cqe
*cqe
)
12448 struct lpfc_wcqe_release wcqe
;
12449 bool workposted
= false;
12451 /* Copy the work queue CQE and convert endian order if needed */
12452 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
12454 /* Check and process for different type of WCQE and dispatch */
12455 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
12456 case CQE_CODE_COMPL_WQE
:
12458 /* Process the WQ complete event */
12459 phba
->last_completion_time
= jiffies
;
12460 lpfc_sli4_fp_handle_fcp_wcqe(phba
, cq
,
12461 (struct lpfc_wcqe_complete
*)&wcqe
);
12463 case CQE_CODE_RELEASE_WQE
:
12464 cq
->CQ_release_wqe
++;
12465 /* Process the WQ release event */
12466 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
12467 (struct lpfc_wcqe_release
*)&wcqe
);
12469 case CQE_CODE_XRI_ABORTED
:
12470 cq
->CQ_xri_aborted
++;
12471 /* Process the WQ XRI abort event */
12472 phba
->last_completion_time
= jiffies
;
12473 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
12474 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
12477 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12478 "0144 Not a valid WCQE code: x%x\n",
12479 bf_get(lpfc_wcqe_c_code
, &wcqe
));
12486 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12487 * @phba: Pointer to HBA context object.
12488 * @eqe: Pointer to fast-path event queue entry.
12490 * This routine process a event queue entry from the fast-path event queue.
12491 * It will check the MajorCode and MinorCode to determine this is for a
12492 * completion event on a completion queue, if not, an error shall be logged
12493 * and just return. Otherwise, it will get to the corresponding completion
12494 * queue and process all the entries on the completion queue, rearm the
12495 * completion queue, and then return.
12498 lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
12501 struct lpfc_queue
*cq
;
12502 struct lpfc_cqe
*cqe
;
12503 bool workposted
= false;
12507 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
12508 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12509 "0366 Not a valid completion "
12510 "event: majorcode=x%x, minorcode=x%x\n",
12511 bf_get_le32(lpfc_eqe_major_code
, eqe
),
12512 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
12516 /* Get the reference to the corresponding CQ */
12517 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12519 /* Check if this is a Slow path event */
12520 if (unlikely(cqid
!= phba
->sli4_hba
.fcp_cq_map
[qidx
])) {
12521 lpfc_sli4_sp_handle_eqe(phba
, eqe
,
12522 phba
->sli4_hba
.hba_eq
[qidx
]);
12526 if (unlikely(!phba
->sli4_hba
.fcp_cq
)) {
12527 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12528 "3146 Fast-path completion queues "
12529 "does not exist\n");
12532 cq
= phba
->sli4_hba
.fcp_cq
[qidx
];
12533 if (unlikely(!cq
)) {
12534 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12535 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12536 "0367 Fast-path completion queue "
12537 "(%d) does not exist\n", qidx
);
12541 if (unlikely(cqid
!= cq
->queue_id
)) {
12542 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12543 "0368 Miss-matched fast-path completion "
12544 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12545 cqid
, cq
->queue_id
);
12549 /* Process all the entries to the CQ */
12550 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12551 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
12552 if (!(++ecount
% cq
->entry_repost
))
12553 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12556 /* Track the max number of CQEs processed in 1 EQ */
12557 if (ecount
> cq
->CQ_max_cqe
)
12558 cq
->CQ_max_cqe
= ecount
;
12560 /* Catch the no cq entry condition */
12561 if (unlikely(ecount
== 0))
12562 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12563 "0369 No entry from fast-path completion "
12564 "queue fcpcqid=%d\n", cq
->queue_id
);
12566 /* In any case, flash and re-arm the CQ */
12567 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12569 /* wake up worker thread if there are works to be done */
12571 lpfc_worker_wake_up(phba
);
12575 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
12577 struct lpfc_eqe
*eqe
;
12579 /* walk all the EQ entries and drop on the floor */
12580 while ((eqe
= lpfc_sli4_eq_get(eq
)))
12583 /* Clear and re-arm the EQ */
12584 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
12589 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12591 * @phba: Pointer to HBA context object.
12592 * @eqe: Pointer to fast-path event queue entry.
12594 * This routine process a event queue entry from the Flash Optimized Fabric
12595 * event queue. It will check the MajorCode and MinorCode to determine this
12596 * is for a completion event on a completion queue, if not, an error shall be
12597 * logged and just return. Otherwise, it will get to the corresponding
12598 * completion queue and process all the entries on the completion queue, rearm
12599 * the completion queue, and then return.
12602 lpfc_sli4_fof_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
12604 struct lpfc_queue
*cq
;
12605 struct lpfc_cqe
*cqe
;
12606 bool workposted
= false;
12610 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
12611 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12612 "9147 Not a valid completion "
12613 "event: majorcode=x%x, minorcode=x%x\n",
12614 bf_get_le32(lpfc_eqe_major_code
, eqe
),
12615 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
12619 /* Get the reference to the corresponding CQ */
12620 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12622 /* Next check for OAS */
12623 cq
= phba
->sli4_hba
.oas_cq
;
12624 if (unlikely(!cq
)) {
12625 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12626 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12627 "9148 OAS completion queue "
12628 "does not exist\n");
12632 if (unlikely(cqid
!= cq
->queue_id
)) {
12633 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12634 "9149 Miss-matched fast-path compl "
12635 "queue id: eqcqid=%d, fcpcqid=%d\n",
12636 cqid
, cq
->queue_id
);
12640 /* Process all the entries to the OAS CQ */
12641 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12642 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
12643 if (!(++ecount
% cq
->entry_repost
))
12644 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12647 /* Track the max number of CQEs processed in 1 EQ */
12648 if (ecount
> cq
->CQ_max_cqe
)
12649 cq
->CQ_max_cqe
= ecount
;
12651 /* Catch the no cq entry condition */
12652 if (unlikely(ecount
== 0))
12653 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12654 "9153 No entry from fast-path completion "
12655 "queue fcpcqid=%d\n", cq
->queue_id
);
12657 /* In any case, flash and re-arm the CQ */
12658 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12660 /* wake up worker thread if there are works to be done */
12662 lpfc_worker_wake_up(phba
);
12666 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12667 * @irq: Interrupt number.
12668 * @dev_id: The device context pointer.
12670 * This function is directly called from the PCI layer as an interrupt
12671 * service routine when device with SLI-4 interface spec is enabled with
12672 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12673 * IOCB ring event in the HBA. However, when the device is enabled with either
12674 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12675 * device-level interrupt handler. When the PCI slot is in error recovery
12676 * or the HBA is undergoing initialization, the interrupt handler will not
12677 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12678 * the intrrupt context. This function is called without any lock held.
12679 * It gets the hbalock to access and update SLI data structures. Note that,
12680 * the EQ to CQ are one-to-one map such that the EQ index is
12681 * equal to that of CQ index.
12683 * This function returns IRQ_HANDLED when interrupt is handled else it
12684 * returns IRQ_NONE.
12687 lpfc_sli4_fof_intr_handler(int irq
, void *dev_id
)
12689 struct lpfc_hba
*phba
;
12690 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
12691 struct lpfc_queue
*eq
;
12692 struct lpfc_eqe
*eqe
;
12693 unsigned long iflag
;
12696 /* Get the driver's phba structure from the dev_id */
12697 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
12698 phba
= fcp_eq_hdl
->phba
;
12700 if (unlikely(!phba
))
12703 /* Get to the EQ struct associated with this vector */
12704 eq
= phba
->sli4_hba
.fof_eq
;
12708 /* Check device state for handling interrupt */
12709 if (unlikely(lpfc_intr_state_check(phba
))) {
12711 /* Check again for link_state with lock held */
12712 spin_lock_irqsave(&phba
->hbalock
, iflag
);
12713 if (phba
->link_state
< LPFC_LINK_DOWN
)
12714 /* Flush, clear interrupt, and rearm the EQ */
12715 lpfc_sli4_eq_flush(phba
, eq
);
12716 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
12721 * Process all the event on FCP fast-path EQ
12723 while ((eqe
= lpfc_sli4_eq_get(eq
))) {
12724 lpfc_sli4_fof_handle_eqe(phba
, eqe
);
12725 if (!(++ecount
% eq
->entry_repost
))
12726 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_NOARM
);
12727 eq
->EQ_processed
++;
12730 /* Track the max number of EQEs processed in 1 intr */
12731 if (ecount
> eq
->EQ_max_eqe
)
12732 eq
->EQ_max_eqe
= ecount
;
12735 if (unlikely(ecount
== 0)) {
12738 if (phba
->intr_type
== MSIX
)
12739 /* MSI-X treated interrupt served as no EQ share INT */
12740 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12741 "9145 MSI-X interrupt with no EQE\n");
12743 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12744 "9146 ISR interrupt with no EQE\n");
12745 /* Non MSI-X treated on interrupt as EQ share INT */
12749 /* Always clear and re-arm the fast-path EQ */
12750 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
12751 return IRQ_HANDLED
;
12755 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12756 * @irq: Interrupt number.
12757 * @dev_id: The device context pointer.
12759 * This function is directly called from the PCI layer as an interrupt
12760 * service routine when device with SLI-4 interface spec is enabled with
12761 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12762 * ring event in the HBA. However, when the device is enabled with either
12763 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12764 * device-level interrupt handler. When the PCI slot is in error recovery
12765 * or the HBA is undergoing initialization, the interrupt handler will not
12766 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12767 * the intrrupt context. This function is called without any lock held.
12768 * It gets the hbalock to access and update SLI data structures. Note that,
12769 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12770 * equal to that of FCP CQ index.
12772 * The link attention and ELS ring attention events are handled
12773 * by the worker thread. The interrupt handler signals the worker thread
12774 * and returns for these events. This function is called without any lock
12775 * held. It gets the hbalock to access and update SLI data structures.
12777 * This function returns IRQ_HANDLED when interrupt is handled else it
12778 * returns IRQ_NONE.
12781 lpfc_sli4_hba_intr_handler(int irq
, void *dev_id
)
12783 struct lpfc_hba
*phba
;
12784 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
12785 struct lpfc_queue
*fpeq
;
12786 struct lpfc_eqe
*eqe
;
12787 unsigned long iflag
;
12791 /* Get the driver's phba structure from the dev_id */
12792 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
12793 phba
= fcp_eq_hdl
->phba
;
12794 fcp_eqidx
= fcp_eq_hdl
->idx
;
12796 if (unlikely(!phba
))
12798 if (unlikely(!phba
->sli4_hba
.hba_eq
))
12801 /* Get to the EQ struct associated with this vector */
12802 fpeq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
12803 if (unlikely(!fpeq
))
12806 if (lpfc_fcp_look_ahead
) {
12807 if (atomic_dec_and_test(&fcp_eq_hdl
->fcp_eq_in_use
))
12808 lpfc_sli4_eq_clr_intr(fpeq
);
12810 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12815 /* Check device state for handling interrupt */
12816 if (unlikely(lpfc_intr_state_check(phba
))) {
12817 fpeq
->EQ_badstate
++;
12818 /* Check again for link_state with lock held */
12819 spin_lock_irqsave(&phba
->hbalock
, iflag
);
12820 if (phba
->link_state
< LPFC_LINK_DOWN
)
12821 /* Flush, clear interrupt, and rearm the EQ */
12822 lpfc_sli4_eq_flush(phba
, fpeq
);
12823 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
12824 if (lpfc_fcp_look_ahead
)
12825 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12830 * Process all the event on FCP fast-path EQ
12832 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
12836 lpfc_sli4_hba_handle_eqe(phba
, eqe
, fcp_eqidx
);
12837 if (!(++ecount
% fpeq
->entry_repost
))
12838 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
12839 fpeq
->EQ_processed
++;
12842 /* Track the max number of EQEs processed in 1 intr */
12843 if (ecount
> fpeq
->EQ_max_eqe
)
12844 fpeq
->EQ_max_eqe
= ecount
;
12846 /* Always clear and re-arm the fast-path EQ */
12847 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
12849 if (unlikely(ecount
== 0)) {
12850 fpeq
->EQ_no_entry
++;
12852 if (lpfc_fcp_look_ahead
) {
12853 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12857 if (phba
->intr_type
== MSIX
)
12858 /* MSI-X treated interrupt served as no EQ share INT */
12859 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12860 "0358 MSI-X interrupt with no EQE\n");
12862 /* Non MSI-X treated on interrupt as EQ share INT */
12866 if (lpfc_fcp_look_ahead
)
12867 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12868 return IRQ_HANDLED
;
12869 } /* lpfc_sli4_fp_intr_handler */
12872 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12873 * @irq: Interrupt number.
12874 * @dev_id: The device context pointer.
12876 * This function is the device-level interrupt handler to device with SLI-4
12877 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12878 * interrupt mode is enabled and there is an event in the HBA which requires
12879 * driver attention. This function invokes the slow-path interrupt attention
12880 * handling function and fast-path interrupt attention handling function in
12881 * turn to process the relevant HBA attention events. This function is called
12882 * without any lock held. It gets the hbalock to access and update SLI data
12885 * This function returns IRQ_HANDLED when interrupt is handled, else it
12886 * returns IRQ_NONE.
12889 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
12891 struct lpfc_hba
*phba
;
12892 irqreturn_t hba_irq_rc
;
12893 bool hba_handled
= false;
12896 /* Get the driver's phba structure from the dev_id */
12897 phba
= (struct lpfc_hba
*)dev_id
;
12899 if (unlikely(!phba
))
12903 * Invoke fast-path host attention interrupt handling as appropriate.
12905 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
; fcp_eqidx
++) {
12906 hba_irq_rc
= lpfc_sli4_hba_intr_handler(irq
,
12907 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
12908 if (hba_irq_rc
== IRQ_HANDLED
)
12909 hba_handled
|= true;
12912 if (phba
->cfg_fof
) {
12913 hba_irq_rc
= lpfc_sli4_fof_intr_handler(irq
,
12914 &phba
->sli4_hba
.fcp_eq_hdl
[0]);
12915 if (hba_irq_rc
== IRQ_HANDLED
)
12916 hba_handled
|= true;
12919 return (hba_handled
== true) ? IRQ_HANDLED
: IRQ_NONE
;
12920 } /* lpfc_sli4_intr_handler */
12923 * lpfc_sli4_queue_free - free a queue structure and associated memory
12924 * @queue: The queue structure to free.
12926 * This function frees a queue structure and the DMAable memory used for
12927 * the host resident queue. This function must be called after destroying the
12928 * queue on the HBA.
12931 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
12933 struct lpfc_dmabuf
*dmabuf
;
12938 while (!list_empty(&queue
->page_list
)) {
12939 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
12941 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
12942 dmabuf
->virt
, dmabuf
->phys
);
12950 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12951 * @phba: The HBA that this queue is being created on.
12952 * @entry_size: The size of each queue entry for this queue.
12953 * @entry count: The number of entries that this queue will handle.
12955 * This function allocates a queue structure and the DMAable memory used for
12956 * the host resident queue. This function must be called before creating the
12957 * queue on the HBA.
12959 struct lpfc_queue
*
12960 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
12961 uint32_t entry_count
)
12963 struct lpfc_queue
*queue
;
12964 struct lpfc_dmabuf
*dmabuf
;
12965 int x
, total_qe_count
;
12967 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
12969 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
12970 hw_page_size
= SLI4_PAGE_SIZE
;
12972 queue
= kzalloc(sizeof(struct lpfc_queue
) +
12973 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
12976 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
12977 hw_page_size
))/hw_page_size
;
12978 INIT_LIST_HEAD(&queue
->list
);
12979 INIT_LIST_HEAD(&queue
->page_list
);
12980 INIT_LIST_HEAD(&queue
->child_list
);
12981 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
12982 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
12985 dmabuf
->virt
= dma_zalloc_coherent(&phba
->pcidev
->dev
,
12986 hw_page_size
, &dmabuf
->phys
,
12988 if (!dmabuf
->virt
) {
12992 dmabuf
->buffer_tag
= x
;
12993 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
12994 /* initialize queue's entry array */
12995 dma_pointer
= dmabuf
->virt
;
12996 for (; total_qe_count
< entry_count
&&
12997 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
12998 total_qe_count
++, dma_pointer
+= entry_size
) {
12999 queue
->qe
[total_qe_count
].address
= dma_pointer
;
13002 queue
->entry_size
= entry_size
;
13003 queue
->entry_count
= entry_count
;
13006 * entry_repost is calculated based on the number of entries in the
13007 * queue. This works out except for RQs. If buffers are NOT initially
13008 * posted for every RQE, entry_repost should be adjusted accordingly.
13010 queue
->entry_repost
= (entry_count
>> 3);
13011 if (queue
->entry_repost
< LPFC_QUEUE_MIN_REPOST
)
13012 queue
->entry_repost
= LPFC_QUEUE_MIN_REPOST
;
13013 queue
->phba
= phba
;
13017 lpfc_sli4_queue_free(queue
);
13022 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13023 * @phba: HBA structure that indicates port to create a queue on.
13024 * @pci_barset: PCI BAR set flag.
13026 * This function shall perform iomap of the specified PCI BAR address to host
13027 * memory address if not already done so and return it. The returned host
13028 * memory address can be NULL.
13030 static void __iomem
*
13031 lpfc_dual_chute_pci_bar_map(struct lpfc_hba
*phba
, uint16_t pci_barset
)
13036 switch (pci_barset
) {
13037 case WQ_PCI_BAR_0_AND_1
:
13038 return phba
->pci_bar0_memmap_p
;
13039 case WQ_PCI_BAR_2_AND_3
:
13040 return phba
->pci_bar2_memmap_p
;
13041 case WQ_PCI_BAR_4_AND_5
:
13042 return phba
->pci_bar4_memmap_p
;
13050 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
13051 * @phba: HBA structure that indicates port to create a queue on.
13052 * @startq: The starting FCP EQ to modify
13054 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
13056 * The @phba struct is used to send mailbox command to HBA. The @startq
13057 * is used to get the starting FCP EQ to change.
13058 * This function is asynchronous and will wait for the mailbox
13059 * command to finish before continuing.
13061 * On success this function will return a zero. If unable to allocate enough
13062 * memory this function will return -ENOMEM. If the queue create mailbox command
13063 * fails this function will return -ENXIO.
13066 lpfc_modify_fcp_eq_delay(struct lpfc_hba
*phba
, uint32_t startq
)
13068 struct lpfc_mbx_modify_eq_delay
*eq_delay
;
13069 LPFC_MBOXQ_t
*mbox
;
13070 struct lpfc_queue
*eq
;
13071 int cnt
, rc
, length
, status
= 0;
13072 uint32_t shdr_status
, shdr_add_status
;
13075 union lpfc_sli4_cfg_shdr
*shdr
;
13078 if (startq
>= phba
->cfg_fcp_io_channel
)
13081 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13084 length
= (sizeof(struct lpfc_mbx_modify_eq_delay
) -
13085 sizeof(struct lpfc_sli4_cfg_mhdr
));
13086 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13087 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY
,
13088 length
, LPFC_SLI4_MBX_EMBED
);
13089 eq_delay
= &mbox
->u
.mqe
.un
.eq_delay
;
13091 /* Calculate delay multiper from maximum interrupt per second */
13092 result
= phba
->cfg_fcp_imax
/ phba
->cfg_fcp_io_channel
;
13093 if (result
> LPFC_DMULT_CONST
)
13096 dmult
= LPFC_DMULT_CONST
/result
- 1;
13099 for (fcp_eqidx
= startq
; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
13101 eq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
13104 eq_delay
->u
.request
.eq
[cnt
].eq_id
= eq
->queue_id
;
13105 eq_delay
->u
.request
.eq
[cnt
].phase
= 0;
13106 eq_delay
->u
.request
.eq
[cnt
].delay_multi
= dmult
;
13108 if (cnt
>= LPFC_MAX_EQ_DELAY
)
13111 eq_delay
->u
.request
.num_eq
= cnt
;
13113 mbox
->vport
= phba
->pport
;
13114 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13115 mbox
->context1
= NULL
;
13116 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13117 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_delay
->header
.cfg_shdr
;
13118 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13119 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13120 if (shdr_status
|| shdr_add_status
|| rc
) {
13121 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13122 "2512 MODIFY_EQ_DELAY mailbox failed with "
13123 "status x%x add_status x%x, mbx status x%x\n",
13124 shdr_status
, shdr_add_status
, rc
);
13127 mempool_free(mbox
, phba
->mbox_mem_pool
);
13132 * lpfc_eq_create - Create an Event Queue on the HBA
13133 * @phba: HBA structure that indicates port to create a queue on.
13134 * @eq: The queue structure to use to create the event queue.
13135 * @imax: The maximum interrupt per second limit.
13137 * This function creates an event queue, as detailed in @eq, on a port,
13138 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
13140 * The @phba struct is used to send mailbox command to HBA. The @eq struct
13141 * is used to get the entry count and entry size that are necessary to
13142 * determine the number of pages to allocate and use for this queue. This
13143 * function will send the EQ_CREATE mailbox command to the HBA to setup the
13144 * event queue. This function is asynchronous and will wait for the mailbox
13145 * command to finish before continuing.
13147 * On success this function will return a zero. If unable to allocate enough
13148 * memory this function will return -ENOMEM. If the queue create mailbox command
13149 * fails this function will return -ENXIO.
13152 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint32_t imax
)
13154 struct lpfc_mbx_eq_create
*eq_create
;
13155 LPFC_MBOXQ_t
*mbox
;
13156 int rc
, length
, status
= 0;
13157 struct lpfc_dmabuf
*dmabuf
;
13158 uint32_t shdr_status
, shdr_add_status
;
13159 union lpfc_sli4_cfg_shdr
*shdr
;
13161 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13163 /* sanity check on queue memory */
13166 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13167 hw_page_size
= SLI4_PAGE_SIZE
;
13169 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13172 length
= (sizeof(struct lpfc_mbx_eq_create
) -
13173 sizeof(struct lpfc_sli4_cfg_mhdr
));
13174 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13175 LPFC_MBOX_OPCODE_EQ_CREATE
,
13176 length
, LPFC_SLI4_MBX_EMBED
);
13177 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
13178 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
13180 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
13182 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
13183 /* don't setup delay multiplier using EQ_CREATE */
13185 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
13187 switch (eq
->entry_count
) {
13189 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13190 "0360 Unsupported EQ count. (%d)\n",
13192 if (eq
->entry_count
< 256)
13194 /* otherwise default to smallest count (drop through) */
13196 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13200 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13204 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13208 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13212 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13216 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
13217 memset(dmabuf
->virt
, 0, hw_page_size
);
13218 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13219 putPaddrLow(dmabuf
->phys
);
13220 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13221 putPaddrHigh(dmabuf
->phys
);
13223 mbox
->vport
= phba
->pport
;
13224 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13225 mbox
->context1
= NULL
;
13226 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13227 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
13228 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13229 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13230 if (shdr_status
|| shdr_add_status
|| rc
) {
13231 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13232 "2500 EQ_CREATE mailbox failed with "
13233 "status x%x add_status x%x, mbx status x%x\n",
13234 shdr_status
, shdr_add_status
, rc
);
13237 eq
->type
= LPFC_EQ
;
13238 eq
->subtype
= LPFC_NONE
;
13239 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
13240 if (eq
->queue_id
== 0xFFFF)
13242 eq
->host_index
= 0;
13245 mempool_free(mbox
, phba
->mbox_mem_pool
);
13250 * lpfc_cq_create - Create a Completion Queue on the HBA
13251 * @phba: HBA structure that indicates port to create a queue on.
13252 * @cq: The queue structure to use to create the completion queue.
13253 * @eq: The event queue to bind this completion queue to.
13255 * This function creates a completion queue, as detailed in @wq, on a port,
13256 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13258 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13259 * is used to get the entry count and entry size that are necessary to
13260 * determine the number of pages to allocate and use for this queue. The @eq
13261 * is used to indicate which event queue to bind this completion queue to. This
13262 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13263 * completion queue. This function is asynchronous and will wait for the mailbox
13264 * command to finish before continuing.
13266 * On success this function will return a zero. If unable to allocate enough
13267 * memory this function will return -ENOMEM. If the queue create mailbox command
13268 * fails this function will return -ENXIO.
13271 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
13272 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
13274 struct lpfc_mbx_cq_create
*cq_create
;
13275 struct lpfc_dmabuf
*dmabuf
;
13276 LPFC_MBOXQ_t
*mbox
;
13277 int rc
, length
, status
= 0;
13278 uint32_t shdr_status
, shdr_add_status
;
13279 union lpfc_sli4_cfg_shdr
*shdr
;
13280 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13282 /* sanity check on queue memory */
13285 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13286 hw_page_size
= SLI4_PAGE_SIZE
;
13288 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13291 length
= (sizeof(struct lpfc_mbx_cq_create
) -
13292 sizeof(struct lpfc_sli4_cfg_mhdr
));
13293 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13294 LPFC_MBOX_OPCODE_CQ_CREATE
,
13295 length
, LPFC_SLI4_MBX_EMBED
);
13296 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
13297 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
13298 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
13300 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
13301 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
13302 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13303 phba
->sli4_hba
.pc_sli4_params
.cqv
);
13304 if (phba
->sli4_hba
.pc_sli4_params
.cqv
== LPFC_Q_CREATE_VERSION_2
) {
13305 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13306 bf_set(lpfc_mbx_cq_create_page_size
, &cq_create
->u
.request
, 1);
13307 bf_set(lpfc_cq_eq_id_2
, &cq_create
->u
.request
.context
,
13310 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
,
13313 switch (cq
->entry_count
) {
13315 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13316 "0361 Unsupported CQ count. (%d)\n",
13318 if (cq
->entry_count
< 256) {
13322 /* otherwise default to smallest count (drop through) */
13324 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13328 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13332 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13336 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
13337 memset(dmabuf
->virt
, 0, hw_page_size
);
13338 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13339 putPaddrLow(dmabuf
->phys
);
13340 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13341 putPaddrHigh(dmabuf
->phys
);
13343 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13345 /* The IOCTL status is embedded in the mailbox subheader. */
13346 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13347 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13348 if (shdr_status
|| shdr_add_status
|| rc
) {
13349 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13350 "2501 CQ_CREATE mailbox failed with "
13351 "status x%x add_status x%x, mbx status x%x\n",
13352 shdr_status
, shdr_add_status
, rc
);
13356 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
13357 if (cq
->queue_id
== 0xFFFF) {
13361 /* link the cq onto the parent eq child list */
13362 list_add_tail(&cq
->list
, &eq
->child_list
);
13363 /* Set up completion queue's type and subtype */
13365 cq
->subtype
= subtype
;
13366 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
13367 cq
->assoc_qid
= eq
->queue_id
;
13368 cq
->host_index
= 0;
13372 mempool_free(mbox
, phba
->mbox_mem_pool
);
13377 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13378 * @phba: HBA structure that indicates port to create a queue on.
13379 * @mq: The queue structure to use to create the mailbox queue.
13380 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13381 * @cq: The completion queue to associate with this cq.
13383 * This function provides failback (fb) functionality when the
13384 * mq_create_ext fails on older FW generations. It's purpose is identical
13385 * to mq_create_ext otherwise.
13387 * This routine cannot fail as all attributes were previously accessed and
13388 * initialized in mq_create_ext.
13391 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
13392 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
13394 struct lpfc_mbx_mq_create
*mq_create
;
13395 struct lpfc_dmabuf
*dmabuf
;
13398 length
= (sizeof(struct lpfc_mbx_mq_create
) -
13399 sizeof(struct lpfc_sli4_cfg_mhdr
));
13400 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13401 LPFC_MBOX_OPCODE_MQ_CREATE
,
13402 length
, LPFC_SLI4_MBX_EMBED
);
13403 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
13404 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
13406 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
13408 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
13409 switch (mq
->entry_count
) {
13411 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13412 LPFC_MQ_RING_SIZE_16
);
13415 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13416 LPFC_MQ_RING_SIZE_32
);
13419 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13420 LPFC_MQ_RING_SIZE_64
);
13423 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13424 LPFC_MQ_RING_SIZE_128
);
13427 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
13428 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13429 putPaddrLow(dmabuf
->phys
);
13430 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13431 putPaddrHigh(dmabuf
->phys
);
13436 * lpfc_mq_create - Create a mailbox Queue on the HBA
13437 * @phba: HBA structure that indicates port to create a queue on.
13438 * @mq: The queue structure to use to create the mailbox queue.
13439 * @cq: The completion queue to associate with this cq.
13440 * @subtype: The queue's subtype.
13442 * This function creates a mailbox queue, as detailed in @mq, on a port,
13443 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13445 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13446 * is used to get the entry count and entry size that are necessary to
13447 * determine the number of pages to allocate and use for this queue. This
13448 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13449 * mailbox queue. This function is asynchronous and will wait for the mailbox
13450 * command to finish before continuing.
13452 * On success this function will return a zero. If unable to allocate enough
13453 * memory this function will return -ENOMEM. If the queue create mailbox command
13454 * fails this function will return -ENXIO.
13457 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
13458 struct lpfc_queue
*cq
, uint32_t subtype
)
13460 struct lpfc_mbx_mq_create
*mq_create
;
13461 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
13462 struct lpfc_dmabuf
*dmabuf
;
13463 LPFC_MBOXQ_t
*mbox
;
13464 int rc
, length
, status
= 0;
13465 uint32_t shdr_status
, shdr_add_status
;
13466 union lpfc_sli4_cfg_shdr
*shdr
;
13467 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13469 /* sanity check on queue memory */
13472 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13473 hw_page_size
= SLI4_PAGE_SIZE
;
13475 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13478 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
13479 sizeof(struct lpfc_sli4_cfg_mhdr
));
13480 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13481 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
13482 length
, LPFC_SLI4_MBX_EMBED
);
13484 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
13485 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
13486 bf_set(lpfc_mbx_mq_create_ext_num_pages
,
13487 &mq_create_ext
->u
.request
, mq
->page_count
);
13488 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
,
13489 &mq_create_ext
->u
.request
, 1);
13490 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip
,
13491 &mq_create_ext
->u
.request
, 1);
13492 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
13493 &mq_create_ext
->u
.request
, 1);
13494 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc
,
13495 &mq_create_ext
->u
.request
, 1);
13496 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli
,
13497 &mq_create_ext
->u
.request
, 1);
13498 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
13499 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13500 phba
->sli4_hba
.pc_sli4_params
.mqv
);
13501 if (phba
->sli4_hba
.pc_sli4_params
.mqv
== LPFC_Q_CREATE_VERSION_1
)
13502 bf_set(lpfc_mbx_mq_create_ext_cq_id
, &mq_create_ext
->u
.request
,
13505 bf_set(lpfc_mq_context_cq_id
, &mq_create_ext
->u
.request
.context
,
13507 switch (mq
->entry_count
) {
13509 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13510 "0362 Unsupported MQ count. (%d)\n",
13512 if (mq
->entry_count
< 16) {
13516 /* otherwise default to smallest count (drop through) */
13518 bf_set(lpfc_mq_context_ring_size
,
13519 &mq_create_ext
->u
.request
.context
,
13520 LPFC_MQ_RING_SIZE_16
);
13523 bf_set(lpfc_mq_context_ring_size
,
13524 &mq_create_ext
->u
.request
.context
,
13525 LPFC_MQ_RING_SIZE_32
);
13528 bf_set(lpfc_mq_context_ring_size
,
13529 &mq_create_ext
->u
.request
.context
,
13530 LPFC_MQ_RING_SIZE_64
);
13533 bf_set(lpfc_mq_context_ring_size
,
13534 &mq_create_ext
->u
.request
.context
,
13535 LPFC_MQ_RING_SIZE_128
);
13538 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
13539 memset(dmabuf
->virt
, 0, hw_page_size
);
13540 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13541 putPaddrLow(dmabuf
->phys
);
13542 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13543 putPaddrHigh(dmabuf
->phys
);
13545 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13546 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
13547 &mq_create_ext
->u
.response
);
13548 if (rc
!= MBX_SUCCESS
) {
13549 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13550 "2795 MQ_CREATE_EXT failed with "
13551 "status x%x. Failback to MQ_CREATE.\n",
13553 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
13554 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
13555 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13556 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
13557 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
13558 &mq_create
->u
.response
);
13561 /* The IOCTL status is embedded in the mailbox subheader. */
13562 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13563 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13564 if (shdr_status
|| shdr_add_status
|| rc
) {
13565 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13566 "2502 MQ_CREATE mailbox failed with "
13567 "status x%x add_status x%x, mbx status x%x\n",
13568 shdr_status
, shdr_add_status
, rc
);
13572 if (mq
->queue_id
== 0xFFFF) {
13576 mq
->type
= LPFC_MQ
;
13577 mq
->assoc_qid
= cq
->queue_id
;
13578 mq
->subtype
= subtype
;
13579 mq
->host_index
= 0;
13582 /* link the mq onto the parent cq child list */
13583 list_add_tail(&mq
->list
, &cq
->child_list
);
13585 mempool_free(mbox
, phba
->mbox_mem_pool
);
13590 * lpfc_wq_create - Create a Work Queue on the HBA
13591 * @phba: HBA structure that indicates port to create a queue on.
13592 * @wq: The queue structure to use to create the work queue.
13593 * @cq: The completion queue to bind this work queue to.
13594 * @subtype: The subtype of the work queue indicating its functionality.
13596 * This function creates a work queue, as detailed in @wq, on a port, described
13597 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13599 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13600 * is used to get the entry count and entry size that are necessary to
13601 * determine the number of pages to allocate and use for this queue. The @cq
13602 * is used to indicate which completion queue to bind this work queue to. This
13603 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13604 * work queue. This function is asynchronous and will wait for the mailbox
13605 * command to finish before continuing.
13607 * On success this function will return a zero. If unable to allocate enough
13608 * memory this function will return -ENOMEM. If the queue create mailbox command
13609 * fails this function will return -ENXIO.
13612 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
13613 struct lpfc_queue
*cq
, uint32_t subtype
)
13615 struct lpfc_mbx_wq_create
*wq_create
;
13616 struct lpfc_dmabuf
*dmabuf
;
13617 LPFC_MBOXQ_t
*mbox
;
13618 int rc
, length
, status
= 0;
13619 uint32_t shdr_status
, shdr_add_status
;
13620 union lpfc_sli4_cfg_shdr
*shdr
;
13621 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13622 struct dma_address
*page
;
13623 void __iomem
*bar_memmap_p
;
13624 uint32_t db_offset
;
13625 uint16_t pci_barset
;
13627 /* sanity check on queue memory */
13630 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13631 hw_page_size
= SLI4_PAGE_SIZE
;
13633 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13636 length
= (sizeof(struct lpfc_mbx_wq_create
) -
13637 sizeof(struct lpfc_sli4_cfg_mhdr
));
13638 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13639 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
13640 length
, LPFC_SLI4_MBX_EMBED
);
13641 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
13642 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
13643 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
13645 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
13648 /* wqv is the earliest version supported, NOT the latest */
13649 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13650 phba
->sli4_hba
.pc_sli4_params
.wqv
);
13652 switch (phba
->sli4_hba
.pc_sli4_params
.wqv
) {
13653 case LPFC_Q_CREATE_VERSION_0
:
13654 switch (wq
->entry_size
) {
13657 /* Nothing to do, version 0 ONLY supports 64 byte */
13658 page
= wq_create
->u
.request
.page
;
13661 if (!(phba
->sli4_hba
.pc_sli4_params
.wqsize
&
13662 LPFC_WQ_SZ128_SUPPORT
)) {
13666 /* If we get here the HBA MUST also support V1 and
13669 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13670 LPFC_Q_CREATE_VERSION_1
);
13672 bf_set(lpfc_mbx_wq_create_wqe_count
,
13673 &wq_create
->u
.request_1
, wq
->entry_count
);
13674 bf_set(lpfc_mbx_wq_create_wqe_size
,
13675 &wq_create
->u
.request_1
,
13676 LPFC_WQ_WQE_SIZE_128
);
13677 bf_set(lpfc_mbx_wq_create_page_size
,
13678 &wq_create
->u
.request_1
,
13679 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13680 page
= wq_create
->u
.request_1
.page
;
13684 case LPFC_Q_CREATE_VERSION_1
:
13685 bf_set(lpfc_mbx_wq_create_wqe_count
, &wq_create
->u
.request_1
,
13687 switch (wq
->entry_size
) {
13690 bf_set(lpfc_mbx_wq_create_wqe_size
,
13691 &wq_create
->u
.request_1
,
13692 LPFC_WQ_WQE_SIZE_64
);
13695 if (!(phba
->sli4_hba
.pc_sli4_params
.wqsize
&
13696 LPFC_WQ_SZ128_SUPPORT
)) {
13700 bf_set(lpfc_mbx_wq_create_wqe_size
,
13701 &wq_create
->u
.request_1
,
13702 LPFC_WQ_WQE_SIZE_128
);
13705 bf_set(lpfc_mbx_wq_create_page_size
, &wq_create
->u
.request_1
,
13706 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13707 page
= wq_create
->u
.request_1
.page
;
13714 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
13715 memset(dmabuf
->virt
, 0, hw_page_size
);
13716 page
[dmabuf
->buffer_tag
].addr_lo
= putPaddrLow(dmabuf
->phys
);
13717 page
[dmabuf
->buffer_tag
].addr_hi
= putPaddrHigh(dmabuf
->phys
);
13720 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13721 bf_set(lpfc_mbx_wq_create_dua
, &wq_create
->u
.request
, 1);
13723 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13724 /* The IOCTL status is embedded in the mailbox subheader. */
13725 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13726 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13727 if (shdr_status
|| shdr_add_status
|| rc
) {
13728 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13729 "2503 WQ_CREATE mailbox failed with "
13730 "status x%x add_status x%x, mbx status x%x\n",
13731 shdr_status
, shdr_add_status
, rc
);
13735 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
13736 if (wq
->queue_id
== 0xFFFF) {
13740 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
13741 wq
->db_format
= bf_get(lpfc_mbx_wq_create_db_format
,
13742 &wq_create
->u
.response
);
13743 if ((wq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
13744 (wq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
13745 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13746 "3265 WQ[%d] doorbell format not "
13747 "supported: x%x\n", wq
->queue_id
,
13752 pci_barset
= bf_get(lpfc_mbx_wq_create_bar_set
,
13753 &wq_create
->u
.response
);
13754 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
13755 if (!bar_memmap_p
) {
13756 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13757 "3263 WQ[%d] failed to memmap pci "
13758 "barset:x%x\n", wq
->queue_id
,
13763 db_offset
= wq_create
->u
.response
.doorbell_offset
;
13764 if ((db_offset
!= LPFC_ULP0_WQ_DOORBELL
) &&
13765 (db_offset
!= LPFC_ULP1_WQ_DOORBELL
)) {
13766 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13767 "3252 WQ[%d] doorbell offset not "
13768 "supported: x%x\n", wq
->queue_id
,
13773 wq
->db_regaddr
= bar_memmap_p
+ db_offset
;
13774 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13775 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13776 "format:x%x\n", wq
->queue_id
, pci_barset
,
13777 db_offset
, wq
->db_format
);
13779 wq
->db_format
= LPFC_DB_LIST_FORMAT
;
13780 wq
->db_regaddr
= phba
->sli4_hba
.WQDBregaddr
;
13782 wq
->type
= LPFC_WQ
;
13783 wq
->assoc_qid
= cq
->queue_id
;
13784 wq
->subtype
= subtype
;
13785 wq
->host_index
= 0;
13787 wq
->entry_repost
= LPFC_RELEASE_NOTIFICATION_INTERVAL
;
13789 /* link the wq onto the parent cq child list */
13790 list_add_tail(&wq
->list
, &cq
->child_list
);
13792 mempool_free(mbox
, phba
->mbox_mem_pool
);
13797 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13798 * @phba: HBA structure that indicates port to create a queue on.
13799 * @rq: The queue structure to use for the receive queue.
13800 * @qno: The associated HBQ number
13803 * For SLI4 we need to adjust the RQ repost value based on
13804 * the number of buffers that are initially posted to the RQ.
13807 lpfc_rq_adjust_repost(struct lpfc_hba
*phba
, struct lpfc_queue
*rq
, int qno
)
13811 /* sanity check on queue memory */
13814 cnt
= lpfc_hbq_defs
[qno
]->entry_count
;
13816 /* Recalc repost for RQs based on buffers initially posted */
13818 if (cnt
< LPFC_QUEUE_MIN_REPOST
)
13819 cnt
= LPFC_QUEUE_MIN_REPOST
;
13821 rq
->entry_repost
= cnt
;
13825 * lpfc_rq_create - Create a Receive Queue on the HBA
13826 * @phba: HBA structure that indicates port to create a queue on.
13827 * @hrq: The queue structure to use to create the header receive queue.
13828 * @drq: The queue structure to use to create the data receive queue.
13829 * @cq: The completion queue to bind this work queue to.
13831 * This function creates a receive buffer queue pair , as detailed in @hrq and
13832 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13835 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13836 * struct is used to get the entry count that is necessary to determine the
13837 * number of pages to use for this queue. The @cq is used to indicate which
13838 * completion queue to bind received buffers that are posted to these queues to.
13839 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13840 * receive queue pair. This function is asynchronous and will wait for the
13841 * mailbox command to finish before continuing.
13843 * On success this function will return a zero. If unable to allocate enough
13844 * memory this function will return -ENOMEM. If the queue create mailbox command
13845 * fails this function will return -ENXIO.
13848 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
13849 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
13851 struct lpfc_mbx_rq_create
*rq_create
;
13852 struct lpfc_dmabuf
*dmabuf
;
13853 LPFC_MBOXQ_t
*mbox
;
13854 int rc
, length
, status
= 0;
13855 uint32_t shdr_status
, shdr_add_status
;
13856 union lpfc_sli4_cfg_shdr
*shdr
;
13857 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13858 void __iomem
*bar_memmap_p
;
13859 uint32_t db_offset
;
13860 uint16_t pci_barset
;
13862 /* sanity check on queue memory */
13863 if (!hrq
|| !drq
|| !cq
)
13865 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13866 hw_page_size
= SLI4_PAGE_SIZE
;
13868 if (hrq
->entry_count
!= drq
->entry_count
)
13870 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13873 length
= (sizeof(struct lpfc_mbx_rq_create
) -
13874 sizeof(struct lpfc_sli4_cfg_mhdr
));
13875 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13876 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
13877 length
, LPFC_SLI4_MBX_EMBED
);
13878 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
13879 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
13880 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13881 phba
->sli4_hba
.pc_sli4_params
.rqv
);
13882 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
13883 bf_set(lpfc_rq_context_rqe_count_1
,
13884 &rq_create
->u
.request
.context
,
13886 rq_create
->u
.request
.context
.buffer_size
= LPFC_HDR_BUF_SIZE
;
13887 bf_set(lpfc_rq_context_rqe_size
,
13888 &rq_create
->u
.request
.context
,
13890 bf_set(lpfc_rq_context_page_size
,
13891 &rq_create
->u
.request
.context
,
13892 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13894 switch (hrq
->entry_count
) {
13896 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13897 "2535 Unsupported RQ count. (%d)\n",
13899 if (hrq
->entry_count
< 512) {
13903 /* otherwise default to smallest count (drop through) */
13905 bf_set(lpfc_rq_context_rqe_count
,
13906 &rq_create
->u
.request
.context
,
13907 LPFC_RQ_RING_SIZE_512
);
13910 bf_set(lpfc_rq_context_rqe_count
,
13911 &rq_create
->u
.request
.context
,
13912 LPFC_RQ_RING_SIZE_1024
);
13915 bf_set(lpfc_rq_context_rqe_count
,
13916 &rq_create
->u
.request
.context
,
13917 LPFC_RQ_RING_SIZE_2048
);
13920 bf_set(lpfc_rq_context_rqe_count
,
13921 &rq_create
->u
.request
.context
,
13922 LPFC_RQ_RING_SIZE_4096
);
13925 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
13926 LPFC_HDR_BUF_SIZE
);
13928 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
13930 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
13932 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
13933 memset(dmabuf
->virt
, 0, hw_page_size
);
13934 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13935 putPaddrLow(dmabuf
->phys
);
13936 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13937 putPaddrHigh(dmabuf
->phys
);
13939 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13940 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
13942 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13943 /* The IOCTL status is embedded in the mailbox subheader. */
13944 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13945 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13946 if (shdr_status
|| shdr_add_status
|| rc
) {
13947 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13948 "2504 RQ_CREATE mailbox failed with "
13949 "status x%x add_status x%x, mbx status x%x\n",
13950 shdr_status
, shdr_add_status
, rc
);
13954 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
13955 if (hrq
->queue_id
== 0xFFFF) {
13960 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
13961 hrq
->db_format
= bf_get(lpfc_mbx_rq_create_db_format
,
13962 &rq_create
->u
.response
);
13963 if ((hrq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
13964 (hrq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
13965 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13966 "3262 RQ [%d] doorbell format not "
13967 "supported: x%x\n", hrq
->queue_id
,
13973 pci_barset
= bf_get(lpfc_mbx_rq_create_bar_set
,
13974 &rq_create
->u
.response
);
13975 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
13976 if (!bar_memmap_p
) {
13977 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13978 "3269 RQ[%d] failed to memmap pci "
13979 "barset:x%x\n", hrq
->queue_id
,
13985 db_offset
= rq_create
->u
.response
.doorbell_offset
;
13986 if ((db_offset
!= LPFC_ULP0_RQ_DOORBELL
) &&
13987 (db_offset
!= LPFC_ULP1_RQ_DOORBELL
)) {
13988 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13989 "3270 RQ[%d] doorbell offset not "
13990 "supported: x%x\n", hrq
->queue_id
,
13995 hrq
->db_regaddr
= bar_memmap_p
+ db_offset
;
13996 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13997 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
13998 "format:x%x\n", hrq
->queue_id
, pci_barset
,
13999 db_offset
, hrq
->db_format
);
14001 hrq
->db_format
= LPFC_DB_RING_FORMAT
;
14002 hrq
->db_regaddr
= phba
->sli4_hba
.RQDBregaddr
;
14004 hrq
->type
= LPFC_HRQ
;
14005 hrq
->assoc_qid
= cq
->queue_id
;
14006 hrq
->subtype
= subtype
;
14007 hrq
->host_index
= 0;
14008 hrq
->hba_index
= 0;
14010 /* now create the data queue */
14011 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14012 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
14013 length
, LPFC_SLI4_MBX_EMBED
);
14014 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
14015 phba
->sli4_hba
.pc_sli4_params
.rqv
);
14016 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
14017 bf_set(lpfc_rq_context_rqe_count_1
,
14018 &rq_create
->u
.request
.context
, hrq
->entry_count
);
14019 rq_create
->u
.request
.context
.buffer_size
= LPFC_DATA_BUF_SIZE
;
14020 bf_set(lpfc_rq_context_rqe_size
, &rq_create
->u
.request
.context
,
14022 bf_set(lpfc_rq_context_page_size
, &rq_create
->u
.request
.context
,
14023 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
14025 switch (drq
->entry_count
) {
14027 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14028 "2536 Unsupported RQ count. (%d)\n",
14030 if (drq
->entry_count
< 512) {
14034 /* otherwise default to smallest count (drop through) */
14036 bf_set(lpfc_rq_context_rqe_count
,
14037 &rq_create
->u
.request
.context
,
14038 LPFC_RQ_RING_SIZE_512
);
14041 bf_set(lpfc_rq_context_rqe_count
,
14042 &rq_create
->u
.request
.context
,
14043 LPFC_RQ_RING_SIZE_1024
);
14046 bf_set(lpfc_rq_context_rqe_count
,
14047 &rq_create
->u
.request
.context
,
14048 LPFC_RQ_RING_SIZE_2048
);
14051 bf_set(lpfc_rq_context_rqe_count
,
14052 &rq_create
->u
.request
.context
,
14053 LPFC_RQ_RING_SIZE_4096
);
14056 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
14057 LPFC_DATA_BUF_SIZE
);
14059 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
14061 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
14063 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
14064 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
14065 putPaddrLow(dmabuf
->phys
);
14066 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
14067 putPaddrHigh(dmabuf
->phys
);
14069 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
14070 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
14071 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14072 /* The IOCTL status is embedded in the mailbox subheader. */
14073 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
14074 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14075 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14076 if (shdr_status
|| shdr_add_status
|| rc
) {
14080 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
14081 if (drq
->queue_id
== 0xFFFF) {
14085 drq
->type
= LPFC_DRQ
;
14086 drq
->assoc_qid
= cq
->queue_id
;
14087 drq
->subtype
= subtype
;
14088 drq
->host_index
= 0;
14089 drq
->hba_index
= 0;
14091 /* link the header and data RQs onto the parent cq child list */
14092 list_add_tail(&hrq
->list
, &cq
->child_list
);
14093 list_add_tail(&drq
->list
, &cq
->child_list
);
14096 mempool_free(mbox
, phba
->mbox_mem_pool
);
14101 * lpfc_eq_destroy - Destroy an event Queue on the HBA
14102 * @eq: The queue structure associated with the queue to destroy.
14104 * This function destroys a queue, as detailed in @eq by sending an mailbox
14105 * command, specific to the type of queue, to the HBA.
14107 * The @eq struct is used to get the queue ID of the queue to destroy.
14109 * On success this function will return a zero. If the queue destroy mailbox
14110 * command fails this function will return -ENXIO.
14113 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
14115 LPFC_MBOXQ_t
*mbox
;
14116 int rc
, length
, status
= 0;
14117 uint32_t shdr_status
, shdr_add_status
;
14118 union lpfc_sli4_cfg_shdr
*shdr
;
14120 /* sanity check on queue memory */
14123 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14126 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
14127 sizeof(struct lpfc_sli4_cfg_mhdr
));
14128 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14129 LPFC_MBOX_OPCODE_EQ_DESTROY
,
14130 length
, LPFC_SLI4_MBX_EMBED
);
14131 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
14133 mbox
->vport
= eq
->phba
->pport
;
14134 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14136 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
14137 /* The IOCTL status is embedded in the mailbox subheader. */
14138 shdr
= (union lpfc_sli4_cfg_shdr
*)
14139 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
14140 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14141 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14142 if (shdr_status
|| shdr_add_status
|| rc
) {
14143 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14144 "2505 EQ_DESTROY mailbox failed with "
14145 "status x%x add_status x%x, mbx status x%x\n",
14146 shdr_status
, shdr_add_status
, rc
);
14150 /* Remove eq from any list */
14151 list_del_init(&eq
->list
);
14152 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
14157 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
14158 * @cq: The queue structure associated with the queue to destroy.
14160 * This function destroys a queue, as detailed in @cq by sending an mailbox
14161 * command, specific to the type of queue, to the HBA.
14163 * The @cq struct is used to get the queue ID of the queue to destroy.
14165 * On success this function will return a zero. If the queue destroy mailbox
14166 * command fails this function will return -ENXIO.
14169 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
14171 LPFC_MBOXQ_t
*mbox
;
14172 int rc
, length
, status
= 0;
14173 uint32_t shdr_status
, shdr_add_status
;
14174 union lpfc_sli4_cfg_shdr
*shdr
;
14176 /* sanity check on queue memory */
14179 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14182 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
14183 sizeof(struct lpfc_sli4_cfg_mhdr
));
14184 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14185 LPFC_MBOX_OPCODE_CQ_DESTROY
,
14186 length
, LPFC_SLI4_MBX_EMBED
);
14187 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
14189 mbox
->vport
= cq
->phba
->pport
;
14190 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14191 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
14192 /* The IOCTL status is embedded in the mailbox subheader. */
14193 shdr
= (union lpfc_sli4_cfg_shdr
*)
14194 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
14195 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14196 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14197 if (shdr_status
|| shdr_add_status
|| rc
) {
14198 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14199 "2506 CQ_DESTROY mailbox failed with "
14200 "status x%x add_status x%x, mbx status x%x\n",
14201 shdr_status
, shdr_add_status
, rc
);
14204 /* Remove cq from any list */
14205 list_del_init(&cq
->list
);
14206 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
14211 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14212 * @qm: The queue structure associated with the queue to destroy.
14214 * This function destroys a queue, as detailed in @mq by sending an mailbox
14215 * command, specific to the type of queue, to the HBA.
14217 * The @mq struct is used to get the queue ID of the queue to destroy.
14219 * On success this function will return a zero. If the queue destroy mailbox
14220 * command fails this function will return -ENXIO.
14223 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
14225 LPFC_MBOXQ_t
*mbox
;
14226 int rc
, length
, status
= 0;
14227 uint32_t shdr_status
, shdr_add_status
;
14228 union lpfc_sli4_cfg_shdr
*shdr
;
14230 /* sanity check on queue memory */
14233 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14236 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
14237 sizeof(struct lpfc_sli4_cfg_mhdr
));
14238 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14239 LPFC_MBOX_OPCODE_MQ_DESTROY
,
14240 length
, LPFC_SLI4_MBX_EMBED
);
14241 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
14243 mbox
->vport
= mq
->phba
->pport
;
14244 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14245 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
14246 /* The IOCTL status is embedded in the mailbox subheader. */
14247 shdr
= (union lpfc_sli4_cfg_shdr
*)
14248 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
14249 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14250 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14251 if (shdr_status
|| shdr_add_status
|| rc
) {
14252 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14253 "2507 MQ_DESTROY mailbox failed with "
14254 "status x%x add_status x%x, mbx status x%x\n",
14255 shdr_status
, shdr_add_status
, rc
);
14258 /* Remove mq from any list */
14259 list_del_init(&mq
->list
);
14260 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
14265 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14266 * @wq: The queue structure associated with the queue to destroy.
14268 * This function destroys a queue, as detailed in @wq by sending an mailbox
14269 * command, specific to the type of queue, to the HBA.
14271 * The @wq struct is used to get the queue ID of the queue to destroy.
14273 * On success this function will return a zero. If the queue destroy mailbox
14274 * command fails this function will return -ENXIO.
14277 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
14279 LPFC_MBOXQ_t
*mbox
;
14280 int rc
, length
, status
= 0;
14281 uint32_t shdr_status
, shdr_add_status
;
14282 union lpfc_sli4_cfg_shdr
*shdr
;
14284 /* sanity check on queue memory */
14287 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14290 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
14291 sizeof(struct lpfc_sli4_cfg_mhdr
));
14292 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14293 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
14294 length
, LPFC_SLI4_MBX_EMBED
);
14295 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
14297 mbox
->vport
= wq
->phba
->pport
;
14298 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14299 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
14300 shdr
= (union lpfc_sli4_cfg_shdr
*)
14301 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
14302 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14303 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14304 if (shdr_status
|| shdr_add_status
|| rc
) {
14305 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14306 "2508 WQ_DESTROY mailbox failed with "
14307 "status x%x add_status x%x, mbx status x%x\n",
14308 shdr_status
, shdr_add_status
, rc
);
14311 /* Remove wq from any list */
14312 list_del_init(&wq
->list
);
14313 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
14318 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14319 * @rq: The queue structure associated with the queue to destroy.
14321 * This function destroys a queue, as detailed in @rq by sending an mailbox
14322 * command, specific to the type of queue, to the HBA.
14324 * The @rq struct is used to get the queue ID of the queue to destroy.
14326 * On success this function will return a zero. If the queue destroy mailbox
14327 * command fails this function will return -ENXIO.
14330 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
14331 struct lpfc_queue
*drq
)
14333 LPFC_MBOXQ_t
*mbox
;
14334 int rc
, length
, status
= 0;
14335 uint32_t shdr_status
, shdr_add_status
;
14336 union lpfc_sli4_cfg_shdr
*shdr
;
14338 /* sanity check on queue memory */
14341 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14344 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
14345 sizeof(struct lpfc_sli4_cfg_mhdr
));
14346 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14347 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
14348 length
, LPFC_SLI4_MBX_EMBED
);
14349 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
14351 mbox
->vport
= hrq
->phba
->pport
;
14352 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14353 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
14354 /* The IOCTL status is embedded in the mailbox subheader. */
14355 shdr
= (union lpfc_sli4_cfg_shdr
*)
14356 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
14357 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14358 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14359 if (shdr_status
|| shdr_add_status
|| rc
) {
14360 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14361 "2509 RQ_DESTROY mailbox failed with "
14362 "status x%x add_status x%x, mbx status x%x\n",
14363 shdr_status
, shdr_add_status
, rc
);
14364 if (rc
!= MBX_TIMEOUT
)
14365 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
14368 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
14370 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
14371 shdr
= (union lpfc_sli4_cfg_shdr
*)
14372 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
14373 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14374 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14375 if (shdr_status
|| shdr_add_status
|| rc
) {
14376 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14377 "2510 RQ_DESTROY mailbox failed with "
14378 "status x%x add_status x%x, mbx status x%x\n",
14379 shdr_status
, shdr_add_status
, rc
);
14382 list_del_init(&hrq
->list
);
14383 list_del_init(&drq
->list
);
14384 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
14389 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14390 * @phba: The virtual port for which this call being executed.
14391 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14392 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14393 * @xritag: the xritag that ties this io to the SGL pages.
14395 * This routine will post the sgl pages for the IO that has the xritag
14396 * that is in the iocbq structure. The xritag is assigned during iocbq
14397 * creation and persists for as long as the driver is loaded.
14398 * if the caller has fewer than 256 scatter gather segments to map then
14399 * pdma_phys_addr1 should be 0.
14400 * If the caller needs to map more than 256 scatter gather segment then
14401 * pdma_phys_addr1 should be a valid physical address.
14402 * physical address for SGLs must be 64 byte aligned.
14403 * If you are going to map 2 SGL's then the first one must have 256 entries
14404 * the second sgl can have between 1 and 256 entries.
14408 * -ENXIO, -ENOMEM - Failure
14411 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
14412 dma_addr_t pdma_phys_addr0
,
14413 dma_addr_t pdma_phys_addr1
,
14416 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
14417 LPFC_MBOXQ_t
*mbox
;
14419 uint32_t shdr_status
, shdr_add_status
;
14421 union lpfc_sli4_cfg_shdr
*shdr
;
14423 if (xritag
== NO_XRI
) {
14424 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14425 "0364 Invalid param:\n");
14429 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14433 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14434 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
14435 sizeof(struct lpfc_mbx_post_sgl_pages
) -
14436 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
14438 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
14439 &mbox
->u
.mqe
.un
.post_sgl_pages
;
14440 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
14441 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
14443 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
14444 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
14445 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
14446 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
14448 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
14449 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
14450 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
14451 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
14452 if (!phba
->sli4_hba
.intr_enable
)
14453 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14455 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14456 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14458 /* The IOCTL status is embedded in the mailbox subheader. */
14459 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
14460 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14461 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14462 if (rc
!= MBX_TIMEOUT
)
14463 mempool_free(mbox
, phba
->mbox_mem_pool
);
14464 if (shdr_status
|| shdr_add_status
|| rc
) {
14465 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14466 "2511 POST_SGL mailbox failed with "
14467 "status x%x add_status x%x, mbx status x%x\n",
14468 shdr_status
, shdr_add_status
, rc
);
14474 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14475 * @phba: pointer to lpfc hba data structure.
14477 * This routine is invoked to post rpi header templates to the
14478 * HBA consistent with the SLI-4 interface spec. This routine
14479 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14480 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14483 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14484 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14487 lpfc_sli4_alloc_xri(struct lpfc_hba
*phba
)
14492 * Fetch the next logical xri. Because this index is logical,
14493 * the driver starts at 0 each time.
14495 spin_lock_irq(&phba
->hbalock
);
14496 xri
= find_next_zero_bit(phba
->sli4_hba
.xri_bmask
,
14497 phba
->sli4_hba
.max_cfg_param
.max_xri
, 0);
14498 if (xri
>= phba
->sli4_hba
.max_cfg_param
.max_xri
) {
14499 spin_unlock_irq(&phba
->hbalock
);
14502 set_bit(xri
, phba
->sli4_hba
.xri_bmask
);
14503 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
14505 spin_unlock_irq(&phba
->hbalock
);
14510 * lpfc_sli4_free_xri - Release an xri for reuse.
14511 * @phba: pointer to lpfc hba data structure.
14513 * This routine is invoked to release an xri to the pool of
14514 * available rpis maintained by the driver.
14517 __lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
14519 if (test_and_clear_bit(xri
, phba
->sli4_hba
.xri_bmask
)) {
14520 phba
->sli4_hba
.max_cfg_param
.xri_used
--;
14525 * lpfc_sli4_free_xri - Release an xri for reuse.
14526 * @phba: pointer to lpfc hba data structure.
14528 * This routine is invoked to release an xri to the pool of
14529 * available rpis maintained by the driver.
14532 lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
14534 spin_lock_irq(&phba
->hbalock
);
14535 __lpfc_sli4_free_xri(phba
, xri
);
14536 spin_unlock_irq(&phba
->hbalock
);
14540 * lpfc_sli4_next_xritag - Get an xritag for the io
14541 * @phba: Pointer to HBA context object.
14543 * This function gets an xritag for the iocb. If there is no unused xritag
14544 * it will return 0xffff.
14545 * The function returns the allocated xritag if successful, else returns zero.
14546 * Zero is not a valid xritag.
14547 * The caller is not required to hold any lock.
14550 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
14552 uint16_t xri_index
;
14554 xri_index
= lpfc_sli4_alloc_xri(phba
);
14555 if (xri_index
== NO_XRI
)
14556 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
14557 "2004 Failed to allocate XRI.last XRITAG is %d"
14558 " Max XRI is %d, Used XRI is %d\n",
14560 phba
->sli4_hba
.max_cfg_param
.max_xri
,
14561 phba
->sli4_hba
.max_cfg_param
.xri_used
);
14566 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14567 * @phba: pointer to lpfc hba data structure.
14568 * @post_sgl_list: pointer to els sgl entry list.
14569 * @count: number of els sgl entries on the list.
14571 * This routine is invoked to post a block of driver's sgl pages to the
14572 * HBA using non-embedded mailbox command. No Lock is held. This routine
14573 * is only called when the driver is loading and after all IO has been
14577 lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*phba
,
14578 struct list_head
*post_sgl_list
,
14581 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
14582 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
14583 struct sgl_page_pairs
*sgl_pg_pairs
;
14585 LPFC_MBOXQ_t
*mbox
;
14586 uint32_t reqlen
, alloclen
, pg_pairs
;
14588 uint16_t xritag_start
= 0;
14590 uint32_t shdr_status
, shdr_add_status
;
14591 union lpfc_sli4_cfg_shdr
*shdr
;
14593 reqlen
= phba
->sli4_hba
.els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
14594 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
14595 if (reqlen
> SLI4_PAGE_SIZE
) {
14596 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
14597 "2559 Block sgl registration required DMA "
14598 "size (%d) great than a page\n", reqlen
);
14601 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14605 /* Allocate DMA memory and set up the non-embedded mailbox command */
14606 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14607 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
14608 LPFC_SLI4_MBX_NEMBED
);
14610 if (alloclen
< reqlen
) {
14611 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14612 "0285 Allocated DMA memory size (%d) is "
14613 "less than the requested DMA memory "
14614 "size (%d)\n", alloclen
, reqlen
);
14615 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14618 /* Set up the SGL pages in the non-embedded DMA pages */
14619 viraddr
= mbox
->sge_array
->addr
[0];
14620 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
14621 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
14624 list_for_each_entry_safe(sglq_entry
, sglq_next
, post_sgl_list
, list
) {
14625 /* Set up the sge entry */
14626 sgl_pg_pairs
->sgl_pg0_addr_lo
=
14627 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
14628 sgl_pg_pairs
->sgl_pg0_addr_hi
=
14629 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
14630 sgl_pg_pairs
->sgl_pg1_addr_lo
=
14631 cpu_to_le32(putPaddrLow(0));
14632 sgl_pg_pairs
->sgl_pg1_addr_hi
=
14633 cpu_to_le32(putPaddrHigh(0));
14635 /* Keep the first xritag on the list */
14637 xritag_start
= sglq_entry
->sli4_xritag
;
14642 /* Complete initialization and perform endian conversion. */
14643 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
14644 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, phba
->sli4_hba
.els_xri_cnt
);
14645 sgl
->word0
= cpu_to_le32(sgl
->word0
);
14646 if (!phba
->sli4_hba
.intr_enable
)
14647 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14649 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14650 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14652 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
14653 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14654 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14655 if (rc
!= MBX_TIMEOUT
)
14656 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14657 if (shdr_status
|| shdr_add_status
|| rc
) {
14658 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14659 "2513 POST_SGL_BLOCK mailbox command failed "
14660 "status x%x add_status x%x mbx status x%x\n",
14661 shdr_status
, shdr_add_status
, rc
);
14668 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14669 * @phba: pointer to lpfc hba data structure.
14670 * @sblist: pointer to scsi buffer list.
14671 * @count: number of scsi buffers on the list.
14673 * This routine is invoked to post a block of @count scsi sgl pages from a
14674 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14679 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
,
14680 struct list_head
*sblist
,
14683 struct lpfc_scsi_buf
*psb
;
14684 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
14685 struct sgl_page_pairs
*sgl_pg_pairs
;
14687 LPFC_MBOXQ_t
*mbox
;
14688 uint32_t reqlen
, alloclen
, pg_pairs
;
14690 uint16_t xritag_start
= 0;
14692 uint32_t shdr_status
, shdr_add_status
;
14693 dma_addr_t pdma_phys_bpl1
;
14694 union lpfc_sli4_cfg_shdr
*shdr
;
14696 /* Calculate the requested length of the dma memory */
14697 reqlen
= count
* sizeof(struct sgl_page_pairs
) +
14698 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
14699 if (reqlen
> SLI4_PAGE_SIZE
) {
14700 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
14701 "0217 Block sgl registration required DMA "
14702 "size (%d) great than a page\n", reqlen
);
14705 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14707 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14708 "0283 Failed to allocate mbox cmd memory\n");
14712 /* Allocate DMA memory and set up the non-embedded mailbox command */
14713 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14714 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
14715 LPFC_SLI4_MBX_NEMBED
);
14717 if (alloclen
< reqlen
) {
14718 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14719 "2561 Allocated DMA memory size (%d) is "
14720 "less than the requested DMA memory "
14721 "size (%d)\n", alloclen
, reqlen
);
14722 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14726 /* Get the first SGE entry from the non-embedded DMA memory */
14727 viraddr
= mbox
->sge_array
->addr
[0];
14729 /* Set up the SGL pages in the non-embedded DMA pages */
14730 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
14731 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
14734 list_for_each_entry(psb
, sblist
, list
) {
14735 /* Set up the sge entry */
14736 sgl_pg_pairs
->sgl_pg0_addr_lo
=
14737 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
14738 sgl_pg_pairs
->sgl_pg0_addr_hi
=
14739 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
14740 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
14741 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
14743 pdma_phys_bpl1
= 0;
14744 sgl_pg_pairs
->sgl_pg1_addr_lo
=
14745 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
14746 sgl_pg_pairs
->sgl_pg1_addr_hi
=
14747 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
14748 /* Keep the first xritag on the list */
14750 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
14754 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
14755 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
14756 /* Perform endian conversion if necessary */
14757 sgl
->word0
= cpu_to_le32(sgl
->word0
);
14759 if (!phba
->sli4_hba
.intr_enable
)
14760 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14762 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14763 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14765 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
14766 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14767 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14768 if (rc
!= MBX_TIMEOUT
)
14769 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14770 if (shdr_status
|| shdr_add_status
|| rc
) {
14771 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14772 "2564 POST_SGL_BLOCK mailbox command failed "
14773 "status x%x add_status x%x mbx status x%x\n",
14774 shdr_status
, shdr_add_status
, rc
);
14781 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14782 * @phba: pointer to lpfc_hba struct that the frame was received on
14783 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14785 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14786 * valid type of frame that the LPFC driver will handle. This function will
14787 * return a zero if the frame is a valid frame or a non zero value when the
14788 * frame does not pass the check.
14791 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
14793 /* make rctl_names static to save stack space */
14794 static char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
14795 char *type_names
[] = FC_TYPE_NAMES_INIT
;
14796 struct fc_vft_header
*fc_vft_hdr
;
14797 uint32_t *header
= (uint32_t *) fc_hdr
;
14799 switch (fc_hdr
->fh_r_ctl
) {
14800 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
14801 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
14802 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
14803 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
14804 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
14805 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
14806 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
14807 case FC_RCTL_DD_CMD_STATUS
: /* command status */
14808 case FC_RCTL_ELS_REQ
: /* extended link services request */
14809 case FC_RCTL_ELS_REP
: /* extended link services reply */
14810 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
14811 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
14812 case FC_RCTL_BA_NOP
: /* basic link service NOP */
14813 case FC_RCTL_BA_ABTS
: /* basic link service abort */
14814 case FC_RCTL_BA_RMC
: /* remove connection */
14815 case FC_RCTL_BA_ACC
: /* basic accept */
14816 case FC_RCTL_BA_RJT
: /* basic reject */
14817 case FC_RCTL_BA_PRMT
:
14818 case FC_RCTL_ACK_1
: /* acknowledge_1 */
14819 case FC_RCTL_ACK_0
: /* acknowledge_0 */
14820 case FC_RCTL_P_RJT
: /* port reject */
14821 case FC_RCTL_F_RJT
: /* fabric reject */
14822 case FC_RCTL_P_BSY
: /* port busy */
14823 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
14824 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
14825 case FC_RCTL_LCR
: /* link credit reset */
14826 case FC_RCTL_END
: /* end */
14828 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
14829 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
14830 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
14831 return lpfc_fc_frame_check(phba
, fc_hdr
);
14835 switch (fc_hdr
->fh_type
) {
14847 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
14848 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14849 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14850 rctl_names
[fc_hdr
->fh_r_ctl
], fc_hdr
->fh_r_ctl
,
14851 type_names
[fc_hdr
->fh_type
], fc_hdr
->fh_type
,
14852 be32_to_cpu(header
[0]), be32_to_cpu(header
[1]),
14853 be32_to_cpu(header
[2]), be32_to_cpu(header
[3]),
14854 be32_to_cpu(header
[4]), be32_to_cpu(header
[5]),
14855 be32_to_cpu(header
[6]));
14858 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
14859 "2539 Dropped frame rctl:%s type:%s\n",
14860 rctl_names
[fc_hdr
->fh_r_ctl
],
14861 type_names
[fc_hdr
->fh_type
]);
14866 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14867 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14869 * This function processes the FC header to retrieve the VFI from the VF
14870 * header, if one exists. This function will return the VFI if one exists
14871 * or 0 if no VSAN Header exists.
14874 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
14876 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
14878 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
14880 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
14884 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14885 * @phba: Pointer to the HBA structure to search for the vport on
14886 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14887 * @fcfi: The FC Fabric ID that the frame came from
14889 * This function searches the @phba for a vport that matches the content of the
14890 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14891 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14892 * returns the matching vport pointer or NULL if unable to match frame to a
14895 static struct lpfc_vport
*
14896 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
14899 struct lpfc_vport
**vports
;
14900 struct lpfc_vport
*vport
= NULL
;
14902 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
14903 fc_hdr
->fh_d_id
[1] << 8 |
14904 fc_hdr
->fh_d_id
[2]);
14906 if (did
== Fabric_DID
)
14907 return phba
->pport
;
14908 if ((phba
->pport
->fc_flag
& FC_PT2PT
) &&
14909 !(phba
->link_state
== LPFC_HBA_READY
))
14910 return phba
->pport
;
14912 vports
= lpfc_create_vport_work_array(phba
);
14913 if (vports
!= NULL
)
14914 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
14915 if (phba
->fcf
.fcfi
== fcfi
&&
14916 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
14917 vports
[i
]->fc_myDID
== did
) {
14922 lpfc_destroy_vport_work_array(phba
, vports
);
14927 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14928 * @vport: The vport to work on.
14930 * This function updates the receive sequence time stamp for this vport. The
14931 * receive sequence time stamp indicates the time that the last frame of the
14932 * the sequence that has been idle for the longest amount of time was received.
14933 * the driver uses this time stamp to indicate if any received sequences have
14937 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
14939 struct lpfc_dmabuf
*h_buf
;
14940 struct hbq_dmabuf
*dmabuf
= NULL
;
14942 /* get the oldest sequence on the rcv list */
14943 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
14944 struct lpfc_dmabuf
, list
);
14947 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14948 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
14952 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14953 * @vport: The vport that the received sequences were sent to.
14955 * This function cleans up all outstanding received sequences. This is called
14956 * by the driver when a link event or user action invalidates all the received
14960 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
14962 struct lpfc_dmabuf
*h_buf
, *hnext
;
14963 struct lpfc_dmabuf
*d_buf
, *dnext
;
14964 struct hbq_dmabuf
*dmabuf
= NULL
;
14966 /* start with the oldest sequence on the rcv list */
14967 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
14968 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14969 list_del_init(&dmabuf
->hbuf
.list
);
14970 list_for_each_entry_safe(d_buf
, dnext
,
14971 &dmabuf
->dbuf
.list
, list
) {
14972 list_del_init(&d_buf
->list
);
14973 lpfc_in_buf_free(vport
->phba
, d_buf
);
14975 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
14980 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
14981 * @vport: The vport that the received sequences were sent to.
14983 * This function determines whether any received sequences have timed out by
14984 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
14985 * indicates that there is at least one timed out sequence this routine will
14986 * go through the received sequences one at a time from most inactive to most
14987 * active to determine which ones need to be cleaned up. Once it has determined
14988 * that a sequence needs to be cleaned up it will simply free up the resources
14989 * without sending an abort.
14992 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
14994 struct lpfc_dmabuf
*h_buf
, *hnext
;
14995 struct lpfc_dmabuf
*d_buf
, *dnext
;
14996 struct hbq_dmabuf
*dmabuf
= NULL
;
14997 unsigned long timeout
;
14998 int abort_count
= 0;
15000 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
15001 vport
->rcv_buffer_time_stamp
);
15002 if (list_empty(&vport
->rcv_buffer_list
) ||
15003 time_before(jiffies
, timeout
))
15005 /* start with the oldest sequence on the rcv list */
15006 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
15007 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15008 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
15009 dmabuf
->time_stamp
);
15010 if (time_before(jiffies
, timeout
))
15013 list_del_init(&dmabuf
->hbuf
.list
);
15014 list_for_each_entry_safe(d_buf
, dnext
,
15015 &dmabuf
->dbuf
.list
, list
) {
15016 list_del_init(&d_buf
->list
);
15017 lpfc_in_buf_free(vport
->phba
, d_buf
);
15019 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
15022 lpfc_update_rcv_time_stamp(vport
);
15026 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
15027 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
15029 * This function searches through the existing incomplete sequences that have
15030 * been sent to this @vport. If the frame matches one of the incomplete
15031 * sequences then the dbuf in the @dmabuf is added to the list of frames that
15032 * make up that sequence. If no sequence is found that matches this frame then
15033 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
15034 * This function returns a pointer to the first dmabuf in the sequence list that
15035 * the frame was linked to.
15037 static struct hbq_dmabuf
*
15038 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
15040 struct fc_frame_header
*new_hdr
;
15041 struct fc_frame_header
*temp_hdr
;
15042 struct lpfc_dmabuf
*d_buf
;
15043 struct lpfc_dmabuf
*h_buf
;
15044 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
15045 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
15048 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
15049 dmabuf
->time_stamp
= jiffies
;
15050 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15052 /* Use the hdr_buf to find the sequence that this frame belongs to */
15053 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
15054 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
15055 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
15056 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
15057 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
15059 /* found a pending sequence that matches this frame */
15060 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15065 * This indicates first frame received for this sequence.
15066 * Queue the buffer on the vport's rcv_buffer_list.
15068 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15069 lpfc_update_rcv_time_stamp(vport
);
15072 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
15073 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
15074 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
15075 list_del_init(&seq_dmabuf
->hbuf
.list
);
15076 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15077 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
15078 lpfc_update_rcv_time_stamp(vport
);
15081 /* move this sequence to the tail to indicate a young sequence */
15082 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15083 seq_dmabuf
->time_stamp
= jiffies
;
15084 lpfc_update_rcv_time_stamp(vport
);
15085 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
15086 temp_hdr
= dmabuf
->hbuf
.virt
;
15087 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
15090 /* find the correct place in the sequence to insert this frame */
15091 d_buf
= list_entry(seq_dmabuf
->dbuf
.list
.prev
, typeof(*d_buf
), list
);
15093 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15094 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
15096 * If the frame's sequence count is greater than the frame on
15097 * the list then insert the frame right after this frame
15099 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
15100 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
15101 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
15106 if (&d_buf
->list
== &seq_dmabuf
->dbuf
.list
)
15108 d_buf
= list_entry(d_buf
->list
.prev
, typeof(*d_buf
), list
);
15117 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
15118 * @vport: pointer to a vitural port
15119 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15121 * This function tries to abort from the partially assembed sequence, described
15122 * by the information from basic abbort @dmabuf. It checks to see whether such
15123 * partially assembled sequence held by the driver. If so, it shall free up all
15124 * the frames from the partially assembled sequence.
15127 * true -- if there is matching partially assembled sequence present and all
15128 * the frames freed with the sequence;
15129 * false -- if there is no matching partially assembled sequence present so
15130 * nothing got aborted in the lower layer driver
15133 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
15134 struct hbq_dmabuf
*dmabuf
)
15136 struct fc_frame_header
*new_hdr
;
15137 struct fc_frame_header
*temp_hdr
;
15138 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
15139 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
15141 /* Use the hdr_buf to find the sequence that matches this frame */
15142 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
15143 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
15144 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15145 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
15146 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
15147 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
15148 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
15149 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
15151 /* found a pending sequence that matches this frame */
15152 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15156 /* Free up all the frames from the partially assembled sequence */
15158 list_for_each_entry_safe(d_buf
, n_buf
,
15159 &seq_dmabuf
->dbuf
.list
, list
) {
15160 list_del_init(&d_buf
->list
);
15161 lpfc_in_buf_free(vport
->phba
, d_buf
);
15169 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
15170 * @vport: pointer to a vitural port
15171 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15173 * This function tries to abort from the assembed sequence from upper level
15174 * protocol, described by the information from basic abbort @dmabuf. It
15175 * checks to see whether such pending context exists at upper level protocol.
15176 * If so, it shall clean up the pending context.
15179 * true -- if there is matching pending context of the sequence cleaned
15181 * false -- if there is no matching pending context of the sequence present
15185 lpfc_sli4_abort_ulp_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
15187 struct lpfc_hba
*phba
= vport
->phba
;
15190 /* Accepting abort at ulp with SLI4 only */
15191 if (phba
->sli_rev
< LPFC_SLI_REV4
)
15194 /* Register all caring upper level protocols to attend abort */
15195 handled
= lpfc_ct_handle_unsol_abort(phba
, dmabuf
);
15203 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15204 * @phba: Pointer to HBA context object.
15205 * @cmd_iocbq: pointer to the command iocbq structure.
15206 * @rsp_iocbq: pointer to the response iocbq structure.
15208 * This function handles the sequence abort response iocb command complete
15209 * event. It properly releases the memory allocated to the sequence abort
15213 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba
*phba
,
15214 struct lpfc_iocbq
*cmd_iocbq
,
15215 struct lpfc_iocbq
*rsp_iocbq
)
15217 struct lpfc_nodelist
*ndlp
;
15220 ndlp
= (struct lpfc_nodelist
*)cmd_iocbq
->context1
;
15221 lpfc_nlp_put(ndlp
);
15222 lpfc_nlp_not_used(ndlp
);
15223 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
15226 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15227 if (rsp_iocbq
&& rsp_iocbq
->iocb
.ulpStatus
)
15228 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15229 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15230 rsp_iocbq
->iocb
.ulpStatus
,
15231 rsp_iocbq
->iocb
.un
.ulpWord
[4]);
15235 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15236 * @phba: Pointer to HBA context object.
15237 * @xri: xri id in transaction.
15239 * This function validates the xri maps to the known range of XRIs allocated an
15240 * used by the driver.
15243 lpfc_sli4_xri_inrange(struct lpfc_hba
*phba
,
15248 for (i
= 0; i
< phba
->sli4_hba
.max_cfg_param
.max_xri
; i
++) {
15249 if (xri
== phba
->sli4_hba
.xri_ids
[i
])
15256 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15257 * @phba: Pointer to HBA context object.
15258 * @fc_hdr: pointer to a FC frame header.
15260 * This function sends a basic response to a previous unsol sequence abort
15261 * event after aborting the sequence handling.
15264 lpfc_sli4_seq_abort_rsp(struct lpfc_vport
*vport
,
15265 struct fc_frame_header
*fc_hdr
, bool aborted
)
15267 struct lpfc_hba
*phba
= vport
->phba
;
15268 struct lpfc_iocbq
*ctiocb
= NULL
;
15269 struct lpfc_nodelist
*ndlp
;
15270 uint16_t oxid
, rxid
, xri
, lxri
;
15271 uint32_t sid
, fctl
;
15275 if (!lpfc_is_link_up(phba
))
15278 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
15279 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
15280 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
15282 ndlp
= lpfc_findnode_did(vport
, sid
);
15284 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
15286 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
15287 "1268 Failed to allocate ndlp for "
15288 "oxid:x%x SID:x%x\n", oxid
, sid
);
15291 lpfc_nlp_init(vport
, ndlp
, sid
);
15292 /* Put ndlp onto pport node list */
15293 lpfc_enqueue_node(vport
, ndlp
);
15294 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
15295 /* re-setup ndlp without removing from node list */
15296 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
15298 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
15299 "3275 Failed to active ndlp found "
15300 "for oxid:x%x SID:x%x\n", oxid
, sid
);
15305 /* Allocate buffer for rsp iocb */
15306 ctiocb
= lpfc_sli_get_iocbq(phba
);
15310 /* Extract the F_CTL field from FC_HDR */
15311 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
15313 icmd
= &ctiocb
->iocb
;
15314 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
15315 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
15316 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
15317 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
15318 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
15320 /* Fill in the rest of iocb fields */
15321 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
15322 icmd
->ulpBdeCount
= 0;
15324 icmd
->ulpClass
= CLASS3
;
15325 icmd
->ulpContext
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
15326 ctiocb
->context1
= lpfc_nlp_get(ndlp
);
15328 ctiocb
->iocb_cmpl
= NULL
;
15329 ctiocb
->vport
= phba
->pport
;
15330 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_rsp_cmpl
;
15331 ctiocb
->sli4_lxritag
= NO_XRI
;
15332 ctiocb
->sli4_xritag
= NO_XRI
;
15334 if (fctl
& FC_FC_EX_CTX
)
15335 /* Exchange responder sent the abort so we
15341 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
15342 if (lxri
!= NO_XRI
)
15343 lpfc_set_rrq_active(phba
, ndlp
, lxri
,
15344 (xri
== oxid
) ? rxid
: oxid
, 0);
15345 /* For BA_ABTS from exchange responder, if the logical xri with
15346 * the oxid maps to the FCP XRI range, the port no longer has
15347 * that exchange context, send a BLS_RJT. Override the IOCB for
15350 if ((fctl
& FC_FC_EX_CTX
) &&
15351 (lxri
> lpfc_sli4_get_els_iocb_cnt(phba
))) {
15352 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
15353 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
15354 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
15355 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
15358 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15359 * the driver no longer has that exchange, send a BLS_RJT. Override
15360 * the IOCB for a BA_RJT.
15362 if (aborted
== false) {
15363 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
15364 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
15365 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
15366 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
15369 if (fctl
& FC_FC_EX_CTX
) {
15370 /* ABTS sent by responder to CT exchange, construction
15371 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15372 * field and RX_ID from ABTS for RX_ID field.
15374 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_RSP
);
15376 /* ABTS sent by initiator to CT exchange, construction
15377 * of BA_ACC will need to allocate a new XRI as for the
15380 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_INT
);
15382 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_rsp
, rxid
);
15383 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_rsp
, oxid
);
15385 /* Xmit CT abts response on exchange <xid> */
15386 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
15387 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15388 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
, phba
->link_state
);
15390 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
15391 if (rc
== IOCB_ERROR
) {
15392 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
15393 "2925 Failed to issue CT ABTS RSP x%x on "
15394 "xri x%x, Data x%x\n",
15395 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
,
15397 lpfc_nlp_put(ndlp
);
15398 ctiocb
->context1
= NULL
;
15399 lpfc_sli_release_iocbq(phba
, ctiocb
);
15404 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15405 * @vport: Pointer to the vport on which this sequence was received
15406 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15408 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15409 * receive sequence is only partially assembed by the driver, it shall abort
15410 * the partially assembled frames for the sequence. Otherwise, if the
15411 * unsolicited receive sequence has been completely assembled and passed to
15412 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15413 * unsolicited sequence has been aborted. After that, it will issue a basic
15414 * accept to accept the abort.
15417 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
15418 struct hbq_dmabuf
*dmabuf
)
15420 struct lpfc_hba
*phba
= vport
->phba
;
15421 struct fc_frame_header fc_hdr
;
15425 /* Make a copy of fc_hdr before the dmabuf being released */
15426 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
15427 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
15429 if (fctl
& FC_FC_EX_CTX
) {
15430 /* ABTS by responder to exchange, no cleanup needed */
15433 /* ABTS by initiator to exchange, need to do cleanup */
15434 aborted
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
15435 if (aborted
== false)
15436 aborted
= lpfc_sli4_abort_ulp_seq(vport
, dmabuf
);
15438 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15440 /* Respond with BA_ACC or BA_RJT accordingly */
15441 lpfc_sli4_seq_abort_rsp(vport
, &fc_hdr
, aborted
);
15445 * lpfc_seq_complete - Indicates if a sequence is complete
15446 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15448 * This function checks the sequence, starting with the frame described by
15449 * @dmabuf, to see if all the frames associated with this sequence are present.
15450 * the frames associated with this sequence are linked to the @dmabuf using the
15451 * dbuf list. This function looks for two major things. 1) That the first frame
15452 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15453 * set. 3) That there are no holes in the sequence count. The function will
15454 * return 1 when the sequence is complete, otherwise it will return 0.
15457 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
15459 struct fc_frame_header
*hdr
;
15460 struct lpfc_dmabuf
*d_buf
;
15461 struct hbq_dmabuf
*seq_dmabuf
;
15465 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15466 /* make sure first fame of sequence has a sequence count of zero */
15467 if (hdr
->fh_seq_cnt
!= seq_count
)
15469 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
15470 hdr
->fh_f_ctl
[1] << 8 |
15472 /* If last frame of sequence we can return success. */
15473 if (fctl
& FC_FC_END_SEQ
)
15475 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
15476 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15477 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15478 /* If there is a hole in the sequence count then fail. */
15479 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
15481 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
15482 hdr
->fh_f_ctl
[1] << 8 |
15484 /* If last frame of sequence we can return success. */
15485 if (fctl
& FC_FC_END_SEQ
)
15492 * lpfc_prep_seq - Prep sequence for ULP processing
15493 * @vport: Pointer to the vport on which this sequence was received
15494 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15496 * This function takes a sequence, described by a list of frames, and creates
15497 * a list of iocbq structures to describe the sequence. This iocbq list will be
15498 * used to issue to the generic unsolicited sequence handler. This routine
15499 * returns a pointer to the first iocbq in the list. If the function is unable
15500 * to allocate an iocbq then it throw out the received frames that were not
15501 * able to be described and return a pointer to the first iocbq. If unable to
15502 * allocate any iocbqs (including the first) this function will return NULL.
15504 static struct lpfc_iocbq
*
15505 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
15507 struct hbq_dmabuf
*hbq_buf
;
15508 struct lpfc_dmabuf
*d_buf
, *n_buf
;
15509 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
15510 struct fc_frame_header
*fc_hdr
;
15512 uint32_t len
, tot_len
;
15513 struct ulp_bde64
*pbde
;
15515 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15516 /* remove from receive buffer list */
15517 list_del_init(&seq_dmabuf
->hbuf
.list
);
15518 lpfc_update_rcv_time_stamp(vport
);
15519 /* get the Remote Port's SID */
15520 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
15522 /* Get an iocbq struct to fill in. */
15523 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
15525 /* Initialize the first IOCB. */
15526 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
15527 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
15529 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15530 if (sli4_type_from_fc_hdr(fc_hdr
) == FC_TYPE_ELS
) {
15531 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_ELS64_CX
;
15532 first_iocbq
->iocb
.un
.rcvels
.parmRo
=
15533 sli4_did_from_fc_hdr(fc_hdr
);
15534 first_iocbq
->iocb
.ulpPU
= PARM_NPIV_DID
;
15536 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
15537 first_iocbq
->iocb
.ulpContext
= NO_XRI
;
15538 first_iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
=
15539 be16_to_cpu(fc_hdr
->fh_ox_id
);
15540 /* iocbq is prepped for internal consumption. Physical vpi. */
15541 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
15542 vport
->phba
->vpi_ids
[vport
->vpi
];
15543 /* put the first buffer into the first IOCBq */
15544 tot_len
= bf_get(lpfc_rcqe_length
,
15545 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15547 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
15548 first_iocbq
->context3
= NULL
;
15549 first_iocbq
->iocb
.ulpBdeCount
= 1;
15550 if (tot_len
> LPFC_DATA_BUF_SIZE
)
15551 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
15552 LPFC_DATA_BUF_SIZE
;
15554 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
= tot_len
;
15556 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
15558 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
15560 iocbq
= first_iocbq
;
15562 * Each IOCBq can have two Buffers assigned, so go through the list
15563 * of buffers for this sequence and save two buffers in each IOCBq
15565 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
15567 lpfc_in_buf_free(vport
->phba
, d_buf
);
15570 if (!iocbq
->context3
) {
15571 iocbq
->context3
= d_buf
;
15572 iocbq
->iocb
.ulpBdeCount
++;
15573 /* We need to get the size out of the right CQE */
15574 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15575 len
= bf_get(lpfc_rcqe_length
,
15576 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
15577 pbde
= (struct ulp_bde64
*)
15578 &iocbq
->iocb
.unsli3
.sli3Words
[4];
15579 if (len
> LPFC_DATA_BUF_SIZE
)
15580 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
15582 pbde
->tus
.f
.bdeSize
= len
;
15584 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+= len
;
15587 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
15590 first_iocbq
->iocb
.ulpStatus
=
15591 IOSTAT_FCP_RSP_ERROR
;
15592 first_iocbq
->iocb
.un
.ulpWord
[4] =
15593 IOERR_NO_RESOURCES
;
15595 lpfc_in_buf_free(vport
->phba
, d_buf
);
15598 /* We need to get the size out of the right CQE */
15599 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15600 len
= bf_get(lpfc_rcqe_length
,
15601 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
15602 iocbq
->context2
= d_buf
;
15603 iocbq
->context3
= NULL
;
15604 iocbq
->iocb
.ulpBdeCount
= 1;
15605 if (len
> LPFC_DATA_BUF_SIZE
)
15606 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
15607 LPFC_DATA_BUF_SIZE
;
15609 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
= len
;
15612 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
15614 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
15615 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
15618 return first_iocbq
;
15622 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
15623 struct hbq_dmabuf
*seq_dmabuf
)
15625 struct fc_frame_header
*fc_hdr
;
15626 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
15627 struct lpfc_hba
*phba
= vport
->phba
;
15629 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15630 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
15632 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15633 "2707 Ring %d handler: Failed to allocate "
15634 "iocb Rctl x%x Type x%x received\n",
15636 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
15639 if (!lpfc_complete_unsol_iocb(phba
,
15640 &phba
->sli
.ring
[LPFC_ELS_RING
],
15641 iocbq
, fc_hdr
->fh_r_ctl
,
15643 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15644 "2540 Ring %d handler: unexpected Rctl "
15645 "x%x Type x%x received\n",
15647 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
15649 /* Free iocb created in lpfc_prep_seq */
15650 list_for_each_entry_safe(curr_iocb
, next_iocb
,
15651 &iocbq
->list
, list
) {
15652 list_del_init(&curr_iocb
->list
);
15653 lpfc_sli_release_iocbq(phba
, curr_iocb
);
15655 lpfc_sli_release_iocbq(phba
, iocbq
);
15659 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15660 * @phba: Pointer to HBA context object.
15662 * This function is called with no lock held. This function processes all
15663 * the received buffers and gives it to upper layers when a received buffer
15664 * indicates that it is the final frame in the sequence. The interrupt
15665 * service routine processes received buffers at interrupt contexts and adds
15666 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15667 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15668 * appropriate receive function when the final frame in a sequence is received.
15671 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
15672 struct hbq_dmabuf
*dmabuf
)
15674 struct hbq_dmabuf
*seq_dmabuf
;
15675 struct fc_frame_header
*fc_hdr
;
15676 struct lpfc_vport
*vport
;
15680 /* Process each received buffer */
15681 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15682 /* check to see if this a valid type of frame */
15683 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
15684 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15687 if ((bf_get(lpfc_cqe_code
,
15688 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
) == CQE_CODE_RECEIVE_V1
))
15689 fcfi
= bf_get(lpfc_rcqe_fcf_id_v1
,
15690 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15692 fcfi
= bf_get(lpfc_rcqe_fcf_id
,
15693 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15695 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
15697 /* throw out the frame */
15698 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15702 /* d_id this frame is directed to */
15703 did
= sli4_did_from_fc_hdr(fc_hdr
);
15705 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15706 if (!(vport
->vpi_state
& LPFC_VPI_REGISTERED
) &&
15707 (did
!= Fabric_DID
)) {
15709 * Throw out the frame if we are not pt2pt.
15710 * The pt2pt protocol allows for discovery frames
15711 * to be received without a registered VPI.
15713 if (!(vport
->fc_flag
& FC_PT2PT
) ||
15714 (phba
->link_state
== LPFC_HBA_READY
)) {
15715 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15720 /* Handle the basic abort sequence (BA_ABTS) event */
15721 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
15722 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
15726 /* Link this frame */
15727 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
15729 /* unable to add frame to vport - throw it out */
15730 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15733 /* If not last frame in sequence continue processing frames. */
15734 if (!lpfc_seq_complete(seq_dmabuf
))
15737 /* Send the complete sequence to the upper layer protocol */
15738 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
15742 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15743 * @phba: pointer to lpfc hba data structure.
15745 * This routine is invoked to post rpi header templates to the
15746 * HBA consistent with the SLI-4 interface spec. This routine
15747 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15748 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15750 * This routine does not require any locks. It's usage is expected
15751 * to be driver load or reset recovery when the driver is
15756 * -EIO - The mailbox failed to complete successfully.
15757 * When this error occurs, the driver is not guaranteed
15758 * to have any rpi regions posted to the device and
15759 * must either attempt to repost the regions or take a
15763 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
15765 struct lpfc_rpi_hdr
*rpi_page
;
15769 /* SLI4 ports that support extents do not require RPI headers. */
15770 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
15772 if (phba
->sli4_hba
.extents_in_use
)
15775 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
15777 * Assign the rpi headers a physical rpi only if the driver
15778 * has not initialized those resources. A port reset only
15779 * needs the headers posted.
15781 if (bf_get(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) !=
15783 rpi_page
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
15785 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
15786 if (rc
!= MBX_SUCCESS
) {
15787 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15788 "2008 Error %d posting all rpi "
15796 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
15797 LPFC_RPI_RSRC_RDY
);
15802 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15803 * @phba: pointer to lpfc hba data structure.
15804 * @rpi_page: pointer to the rpi memory region.
15806 * This routine is invoked to post a single rpi header to the
15807 * HBA consistent with the SLI-4 interface spec. This memory region
15808 * maps up to 64 rpi context regions.
15812 * -ENOMEM - No available memory
15813 * -EIO - The mailbox failed to complete successfully.
15816 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
15818 LPFC_MBOXQ_t
*mboxq
;
15819 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
15821 uint32_t shdr_status
, shdr_add_status
;
15822 union lpfc_sli4_cfg_shdr
*shdr
;
15824 /* SLI4 ports that support extents do not require RPI headers. */
15825 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
15827 if (phba
->sli4_hba
.extents_in_use
)
15830 /* The port is notified of the header region via a mailbox command. */
15831 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15833 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15834 "2001 Unable to allocate memory for issuing "
15835 "SLI_CONFIG_SPECIAL mailbox command\n");
15839 /* Post all rpi memory regions to the port. */
15840 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
15841 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
15842 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
15843 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
15844 sizeof(struct lpfc_sli4_cfg_mhdr
),
15845 LPFC_SLI4_MBX_EMBED
);
15848 /* Post the physical rpi to the port for this rpi header. */
15849 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
15850 rpi_page
->start_rpi
);
15851 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
15852 hdr_tmpl
, rpi_page
->page_count
);
15854 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
15855 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
15856 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
15857 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
15858 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
15859 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
15860 if (rc
!= MBX_TIMEOUT
)
15861 mempool_free(mboxq
, phba
->mbox_mem_pool
);
15862 if (shdr_status
|| shdr_add_status
|| rc
) {
15863 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15864 "2514 POST_RPI_HDR mailbox failed with "
15865 "status x%x add_status x%x, mbx status x%x\n",
15866 shdr_status
, shdr_add_status
, rc
);
15873 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15874 * @phba: pointer to lpfc hba data structure.
15876 * This routine is invoked to post rpi header templates to the
15877 * HBA consistent with the SLI-4 interface spec. This routine
15878 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15879 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15882 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15883 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15886 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
15889 uint16_t max_rpi
, rpi_limit
;
15890 uint16_t rpi_remaining
, lrpi
= 0;
15891 struct lpfc_rpi_hdr
*rpi_hdr
;
15892 unsigned long iflag
;
15895 * Fetch the next logical rpi. Because this index is logical,
15896 * the driver starts at 0 each time.
15898 spin_lock_irqsave(&phba
->hbalock
, iflag
);
15899 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
15900 rpi_limit
= phba
->sli4_hba
.next_rpi
;
15902 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, 0);
15903 if (rpi
>= rpi_limit
)
15904 rpi
= LPFC_RPI_ALLOC_ERROR
;
15906 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
15907 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
15908 phba
->sli4_hba
.rpi_count
++;
15910 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
15911 "0001 rpi:%x max:%x lim:%x\n",
15912 (int) rpi
, max_rpi
, rpi_limit
);
15915 * Don't try to allocate more rpi header regions if the device limit
15916 * has been exhausted.
15918 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
15919 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
15920 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15925 * RPI header postings are not required for SLI4 ports capable of
15928 if (!phba
->sli4_hba
.rpi_hdrs_in_use
) {
15929 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15934 * If the driver is running low on rpi resources, allocate another
15935 * page now. Note that the next_rpi value is used because
15936 * it represents how many are actually in use whereas max_rpi notes
15937 * how many are supported max by the device.
15939 rpi_remaining
= phba
->sli4_hba
.next_rpi
- phba
->sli4_hba
.rpi_count
;
15940 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15941 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
15942 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
15944 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15945 "2002 Error Could not grow rpi "
15948 lrpi
= rpi_hdr
->start_rpi
;
15949 rpi_hdr
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
15950 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
15958 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15959 * @phba: pointer to lpfc hba data structure.
15961 * This routine is invoked to release an rpi to the pool of
15962 * available rpis maintained by the driver.
15965 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
15967 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
15968 phba
->sli4_hba
.rpi_count
--;
15969 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
15974 * lpfc_sli4_free_rpi - Release an rpi for reuse.
15975 * @phba: pointer to lpfc hba data structure.
15977 * This routine is invoked to release an rpi to the pool of
15978 * available rpis maintained by the driver.
15981 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
15983 spin_lock_irq(&phba
->hbalock
);
15984 __lpfc_sli4_free_rpi(phba
, rpi
);
15985 spin_unlock_irq(&phba
->hbalock
);
15989 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
15990 * @phba: pointer to lpfc hba data structure.
15992 * This routine is invoked to remove the memory region that
15993 * provided rpi via a bitmask.
15996 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
15998 kfree(phba
->sli4_hba
.rpi_bmask
);
15999 kfree(phba
->sli4_hba
.rpi_ids
);
16000 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
16004 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
16005 * @phba: pointer to lpfc hba data structure.
16007 * This routine is invoked to remove the memory region that
16008 * provided rpi via a bitmask.
16011 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
,
16012 void (*cmpl
)(struct lpfc_hba
*, LPFC_MBOXQ_t
*), void *arg
)
16014 LPFC_MBOXQ_t
*mboxq
;
16015 struct lpfc_hba
*phba
= ndlp
->phba
;
16018 /* The port is notified of the header region via a mailbox command. */
16019 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16023 /* Post all rpi memory regions to the port. */
16024 lpfc_resume_rpi(mboxq
, ndlp
);
16026 mboxq
->mbox_cmpl
= cmpl
;
16027 mboxq
->context1
= arg
;
16028 mboxq
->context2
= ndlp
;
16030 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
16031 mboxq
->vport
= ndlp
->vport
;
16032 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16033 if (rc
== MBX_NOT_FINISHED
) {
16034 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16035 "2010 Resume RPI Mailbox failed "
16036 "status %d, mbxStatus x%x\n", rc
,
16037 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
16038 mempool_free(mboxq
, phba
->mbox_mem_pool
);
16045 * lpfc_sli4_init_vpi - Initialize a vpi with the port
16046 * @vport: Pointer to the vport for which the vpi is being initialized
16048 * This routine is invoked to activate a vpi with the port.
16052 * -Evalue otherwise
16055 lpfc_sli4_init_vpi(struct lpfc_vport
*vport
)
16057 LPFC_MBOXQ_t
*mboxq
;
16059 int retval
= MBX_SUCCESS
;
16061 struct lpfc_hba
*phba
= vport
->phba
;
16062 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16065 lpfc_init_vpi(phba
, mboxq
, vport
->vpi
);
16066 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
16067 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
16068 if (rc
!= MBX_SUCCESS
) {
16069 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
16070 "2022 INIT VPI Mailbox failed "
16071 "status %d, mbxStatus x%x\n", rc
,
16072 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
16075 if (rc
!= MBX_TIMEOUT
)
16076 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
16082 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
16083 * @phba: pointer to lpfc hba data structure.
16084 * @mboxq: Pointer to mailbox object.
16086 * This routine is invoked to manually add a single FCF record. The caller
16087 * must pass a completely initialized FCF_Record. This routine takes
16088 * care of the nonembedded mailbox operations.
16091 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
16094 union lpfc_sli4_cfg_shdr
*shdr
;
16095 uint32_t shdr_status
, shdr_add_status
;
16097 virt_addr
= mboxq
->sge_array
->addr
[0];
16098 /* The IOCTL status is embedded in the mailbox subheader. */
16099 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
16100 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
16101 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
16103 if ((shdr_status
|| shdr_add_status
) &&
16104 (shdr_status
!= STATUS_FCF_IN_USE
))
16105 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16106 "2558 ADD_FCF_RECORD mailbox failed with "
16107 "status x%x add_status x%x\n",
16108 shdr_status
, shdr_add_status
);
16110 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16114 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
16115 * @phba: pointer to lpfc hba data structure.
16116 * @fcf_record: pointer to the initialized fcf record to add.
16118 * This routine is invoked to manually add a single FCF record. The caller
16119 * must pass a completely initialized FCF_Record. This routine takes
16120 * care of the nonembedded mailbox operations.
16123 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
16126 LPFC_MBOXQ_t
*mboxq
;
16129 struct lpfc_mbx_sge sge
;
16130 uint32_t alloc_len
, req_len
;
16133 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16135 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16136 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
16140 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
16143 /* Allocate DMA memory and set up the non-embedded mailbox command */
16144 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
16145 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
16146 req_len
, LPFC_SLI4_MBX_NEMBED
);
16147 if (alloc_len
< req_len
) {
16148 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16149 "2523 Allocated DMA memory size (x%x) is "
16150 "less than the requested DMA memory "
16151 "size (x%x)\n", alloc_len
, req_len
);
16152 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16157 * Get the first SGE entry from the non-embedded DMA memory. This
16158 * routine only uses a single SGE.
16160 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
16161 virt_addr
= mboxq
->sge_array
->addr
[0];
16163 * Configure the FCF record for FCFI 0. This is the driver's
16164 * hardcoded default and gets used in nonFIP mode.
16166 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
16167 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
16168 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
16171 * Copy the fcf_index and the FCF Record Data. The data starts after
16172 * the FCoE header plus word10. The data copy needs to be endian
16175 bytep
+= sizeof(uint32_t);
16176 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
16177 mboxq
->vport
= phba
->pport
;
16178 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
16179 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16180 if (rc
== MBX_NOT_FINISHED
) {
16181 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16182 "2515 ADD_FCF_RECORD mailbox failed with "
16183 "status 0x%x\n", rc
);
16184 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16193 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16194 * @phba: pointer to lpfc hba data structure.
16195 * @fcf_record: pointer to the fcf record to write the default data.
16196 * @fcf_index: FCF table entry index.
16198 * This routine is invoked to build the driver's default FCF record. The
16199 * values used are hardcoded. This routine handles memory initialization.
16203 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
16204 struct fcf_record
*fcf_record
,
16205 uint16_t fcf_index
)
16207 memset(fcf_record
, 0, sizeof(struct fcf_record
));
16208 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
16209 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
16210 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
16211 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
16212 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
16213 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
16214 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
16215 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
16216 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
16217 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
16218 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
16219 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
16220 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
16221 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
16222 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
16223 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
16224 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
16225 /* Set the VLAN bit map */
16226 if (phba
->valid_vlan
) {
16227 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
16228 = 1 << (phba
->vlan_id
% 8);
16233 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16234 * @phba: pointer to lpfc hba data structure.
16235 * @fcf_index: FCF table entry offset.
16237 * This routine is invoked to scan the entire FCF table by reading FCF
16238 * record and processing it one at a time starting from the @fcf_index
16239 * for initial FCF discovery or fast FCF failover rediscovery.
16241 * Return 0 if the mailbox command is submitted successfully, none 0
16245 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16248 LPFC_MBOXQ_t
*mboxq
;
16250 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
16251 phba
->fcoe_cvl_eventtag_attn
= phba
->fcoe_cvl_eventtag
;
16252 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16254 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16255 "2000 Failed to allocate mbox for "
16258 goto fail_fcf_scan
;
16260 /* Construct the read FCF record mailbox command */
16261 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16264 goto fail_fcf_scan
;
16266 /* Issue the mailbox command asynchronously */
16267 mboxq
->vport
= phba
->pport
;
16268 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
16270 spin_lock_irq(&phba
->hbalock
);
16271 phba
->hba_flag
|= FCF_TS_INPROG
;
16272 spin_unlock_irq(&phba
->hbalock
);
16274 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16275 if (rc
== MBX_NOT_FINISHED
)
16278 /* Reset eligible FCF count for new scan */
16279 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
16280 phba
->fcf
.eligible_fcf_cnt
= 0;
16286 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16287 /* FCF scan failed, clear FCF_TS_INPROG flag */
16288 spin_lock_irq(&phba
->hbalock
);
16289 phba
->hba_flag
&= ~FCF_TS_INPROG
;
16290 spin_unlock_irq(&phba
->hbalock
);
16296 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16297 * @phba: pointer to lpfc hba data structure.
16298 * @fcf_index: FCF table entry offset.
16300 * This routine is invoked to read an FCF record indicated by @fcf_index
16301 * and to use it for FLOGI roundrobin FCF failover.
16303 * Return 0 if the mailbox command is submitted successfully, none 0
16307 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16310 LPFC_MBOXQ_t
*mboxq
;
16312 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16314 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
16315 "2763 Failed to allocate mbox for "
16318 goto fail_fcf_read
;
16320 /* Construct the read FCF record mailbox command */
16321 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16324 goto fail_fcf_read
;
16326 /* Issue the mailbox command asynchronously */
16327 mboxq
->vport
= phba
->pport
;
16328 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
16329 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16330 if (rc
== MBX_NOT_FINISHED
)
16336 if (error
&& mboxq
)
16337 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16342 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16343 * @phba: pointer to lpfc hba data structure.
16344 * @fcf_index: FCF table entry offset.
16346 * This routine is invoked to read an FCF record indicated by @fcf_index to
16347 * determine whether it's eligible for FLOGI roundrobin failover list.
16349 * Return 0 if the mailbox command is submitted successfully, none 0
16353 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16356 LPFC_MBOXQ_t
*mboxq
;
16358 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16360 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
16361 "2758 Failed to allocate mbox for "
16364 goto fail_fcf_read
;
16366 /* Construct the read FCF record mailbox command */
16367 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16370 goto fail_fcf_read
;
16372 /* Issue the mailbox command asynchronously */
16373 mboxq
->vport
= phba
->pport
;
16374 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
16375 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16376 if (rc
== MBX_NOT_FINISHED
)
16382 if (error
&& mboxq
)
16383 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16388 * lpfc_check_next_fcf_pri_level
16389 * phba pointer to the lpfc_hba struct for this port.
16390 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16391 * routine when the rr_bmask is empty. The FCF indecies are put into the
16392 * rr_bmask based on their priority level. Starting from the highest priority
16393 * to the lowest. The most likely FCF candidate will be in the highest
16394 * priority group. When this routine is called it searches the fcf_pri list for
16395 * next lowest priority group and repopulates the rr_bmask with only those
16398 * 1=success 0=failure
16401 lpfc_check_next_fcf_pri_level(struct lpfc_hba
*phba
)
16403 uint16_t next_fcf_pri
;
16404 uint16_t last_index
;
16405 struct lpfc_fcf_pri
*fcf_pri
;
16409 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
16410 LPFC_SLI4_FCF_TBL_INDX_MAX
);
16411 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16412 "3060 Last IDX %d\n", last_index
);
16414 /* Verify the priority list has 2 or more entries */
16415 spin_lock_irq(&phba
->hbalock
);
16416 if (list_empty(&phba
->fcf
.fcf_pri_list
) ||
16417 list_is_singular(&phba
->fcf
.fcf_pri_list
)) {
16418 spin_unlock_irq(&phba
->hbalock
);
16419 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16420 "3061 Last IDX %d\n", last_index
);
16421 return 0; /* Empty rr list */
16423 spin_unlock_irq(&phba
->hbalock
);
16427 * Clear the rr_bmask and set all of the bits that are at this
16430 memset(phba
->fcf
.fcf_rr_bmask
, 0,
16431 sizeof(*phba
->fcf
.fcf_rr_bmask
));
16432 spin_lock_irq(&phba
->hbalock
);
16433 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
16434 if (fcf_pri
->fcf_rec
.flag
& LPFC_FCF_FLOGI_FAILED
)
16437 * the 1st priority that has not FLOGI failed
16438 * will be the highest.
16441 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
16442 spin_unlock_irq(&phba
->hbalock
);
16443 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
16444 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
16445 fcf_pri
->fcf_rec
.fcf_index
);
16449 spin_lock_irq(&phba
->hbalock
);
16452 * if next_fcf_pri was not set above and the list is not empty then
16453 * we have failed flogis on all of them. So reset flogi failed
16454 * and start at the beginning.
16456 if (!next_fcf_pri
&& !list_empty(&phba
->fcf
.fcf_pri_list
)) {
16457 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
16458 fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_FLOGI_FAILED
;
16460 * the 1st priority that has not FLOGI failed
16461 * will be the highest.
16464 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
16465 spin_unlock_irq(&phba
->hbalock
);
16466 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
16467 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
16468 fcf_pri
->fcf_rec
.fcf_index
);
16472 spin_lock_irq(&phba
->hbalock
);
16476 spin_unlock_irq(&phba
->hbalock
);
16481 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16482 * @phba: pointer to lpfc hba data structure.
16484 * This routine is to get the next eligible FCF record index in a round
16485 * robin fashion. If the next eligible FCF record index equals to the
16486 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16487 * shall be returned, otherwise, the next eligible FCF record's index
16488 * shall be returned.
16491 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
16493 uint16_t next_fcf_index
;
16496 /* Search start from next bit of currently registered FCF index */
16497 next_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
16500 /* Determine the next fcf index to check */
16501 next_fcf_index
= (next_fcf_index
+ 1) % LPFC_SLI4_FCF_TBL_INDX_MAX
;
16502 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
16503 LPFC_SLI4_FCF_TBL_INDX_MAX
,
16506 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16507 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16509 * If we have wrapped then we need to clear the bits that
16510 * have been tested so that we can detect when we should
16511 * change the priority level.
16513 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
16514 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
16518 /* Check roundrobin failover list empty condition */
16519 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
||
16520 next_fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
16522 * If next fcf index is not found check if there are lower
16523 * Priority level fcf's in the fcf_priority list.
16524 * Set up the rr_bmask with all of the avaiable fcf bits
16525 * at that level and continue the selection process.
16527 if (lpfc_check_next_fcf_pri_level(phba
))
16528 goto initial_priority
;
16529 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
16530 "2844 No roundrobin failover FCF available\n");
16531 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
16532 return LPFC_FCOE_FCF_NEXT_NONE
;
16534 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
16535 "3063 Only FCF available idx %d, flag %x\n",
16537 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
);
16538 return next_fcf_index
;
16542 if (next_fcf_index
< LPFC_SLI4_FCF_TBL_INDX_MAX
&&
16543 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
&
16544 LPFC_FCF_FLOGI_FAILED
) {
16545 if (list_is_singular(&phba
->fcf
.fcf_pri_list
))
16546 return LPFC_FCOE_FCF_NEXT_NONE
;
16548 goto next_priority
;
16551 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16552 "2845 Get next roundrobin failover FCF (x%x)\n",
16555 return next_fcf_index
;
16559 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16560 * @phba: pointer to lpfc hba data structure.
16562 * This routine sets the FCF record index in to the eligible bmask for
16563 * roundrobin failover search. It checks to make sure that the index
16564 * does not go beyond the range of the driver allocated bmask dimension
16565 * before setting the bit.
16567 * Returns 0 if the index bit successfully set, otherwise, it returns
16571 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16573 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16574 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16575 "2610 FCF (x%x) reached driver's book "
16576 "keeping dimension:x%x\n",
16577 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
16580 /* Set the eligible FCF record index bmask */
16581 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
16583 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16584 "2790 Set FCF (x%x) to roundrobin FCF failover "
16585 "bmask\n", fcf_index
);
16591 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16592 * @phba: pointer to lpfc hba data structure.
16594 * This routine clears the FCF record index from the eligible bmask for
16595 * roundrobin failover search. It checks to make sure that the index
16596 * does not go beyond the range of the driver allocated bmask dimension
16597 * before clearing the bit.
16600 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16602 struct lpfc_fcf_pri
*fcf_pri
, *fcf_pri_next
;
16603 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16604 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16605 "2762 FCF (x%x) reached driver's book "
16606 "keeping dimension:x%x\n",
16607 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
16610 /* Clear the eligible FCF record index bmask */
16611 spin_lock_irq(&phba
->hbalock
);
16612 list_for_each_entry_safe(fcf_pri
, fcf_pri_next
, &phba
->fcf
.fcf_pri_list
,
16614 if (fcf_pri
->fcf_rec
.fcf_index
== fcf_index
) {
16615 list_del_init(&fcf_pri
->list
);
16619 spin_unlock_irq(&phba
->hbalock
);
16620 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
16622 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16623 "2791 Clear FCF (x%x) from roundrobin failover "
16624 "bmask\n", fcf_index
);
16628 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16629 * @phba: pointer to lpfc hba data structure.
16631 * This routine is the completion routine for the rediscover FCF table mailbox
16632 * command. If the mailbox command returned failure, it will try to stop the
16633 * FCF rediscover wait timer.
16636 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
16638 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
16639 uint32_t shdr_status
, shdr_add_status
;
16641 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
16643 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
16644 &redisc_fcf
->header
.cfg_shdr
.response
);
16645 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
16646 &redisc_fcf
->header
.cfg_shdr
.response
);
16647 if (shdr_status
|| shdr_add_status
) {
16648 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16649 "2746 Requesting for FCF rediscovery failed "
16650 "status x%x add_status x%x\n",
16651 shdr_status
, shdr_add_status
);
16652 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
16653 spin_lock_irq(&phba
->hbalock
);
16654 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
16655 spin_unlock_irq(&phba
->hbalock
);
16657 * CVL event triggered FCF rediscover request failed,
16658 * last resort to re-try current registered FCF entry.
16660 lpfc_retry_pport_discovery(phba
);
16662 spin_lock_irq(&phba
->hbalock
);
16663 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
16664 spin_unlock_irq(&phba
->hbalock
);
16666 * DEAD FCF event triggered FCF rediscover request
16667 * failed, last resort to fail over as a link down
16668 * to FCF registration.
16670 lpfc_sli4_fcf_dead_failthrough(phba
);
16673 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16674 "2775 Start FCF rediscover quiescent timer\n");
16676 * Start FCF rediscovery wait timer for pending FCF
16677 * before rescan FCF record table.
16679 lpfc_fcf_redisc_wait_start_timer(phba
);
16682 mempool_free(mbox
, phba
->mbox_mem_pool
);
16686 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16687 * @phba: pointer to lpfc hba data structure.
16689 * This routine is invoked to request for rediscovery of the entire FCF table
16693 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
16695 LPFC_MBOXQ_t
*mbox
;
16696 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
16699 /* Cancel retry delay timers to all vports before FCF rediscover */
16700 lpfc_cancel_all_vport_retry_delay_timer(phba
);
16702 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16704 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16705 "2745 Failed to allocate mbox for "
16706 "requesting FCF rediscover.\n");
16710 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
16711 sizeof(struct lpfc_sli4_cfg_mhdr
));
16712 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
16713 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
16714 length
, LPFC_SLI4_MBX_EMBED
);
16716 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
16717 /* Set count to 0 for invalidating the entire FCF database */
16718 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
16720 /* Issue the mailbox command asynchronously */
16721 mbox
->vport
= phba
->pport
;
16722 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
16723 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
16725 if (rc
== MBX_NOT_FINISHED
) {
16726 mempool_free(mbox
, phba
->mbox_mem_pool
);
16733 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16734 * @phba: pointer to lpfc hba data structure.
16736 * This function is the failover routine as a last resort to the FCF DEAD
16737 * event when driver failed to perform fast FCF failover.
16740 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
16742 uint32_t link_state
;
16745 * Last resort as FCF DEAD event failover will treat this as
16746 * a link down, but save the link state because we don't want
16747 * it to be changed to Link Down unless it is already down.
16749 link_state
= phba
->link_state
;
16750 lpfc_linkdown(phba
);
16751 phba
->link_state
= link_state
;
16753 /* Unregister FCF if no devices connected to it */
16754 lpfc_unregister_unused_fcf(phba
);
16758 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16759 * @phba: pointer to lpfc hba data structure.
16760 * @rgn23_data: pointer to configure region 23 data.
16762 * This function gets SLI3 port configure region 23 data through memory dump
16763 * mailbox command. When it successfully retrieves data, the size of the data
16764 * will be returned, otherwise, 0 will be returned.
16767 lpfc_sli_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
16769 LPFC_MBOXQ_t
*pmb
= NULL
;
16771 uint32_t offset
= 0;
16777 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16779 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16780 "2600 failed to allocate mailbox memory\n");
16786 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
16787 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
16789 if (rc
!= MBX_SUCCESS
) {
16790 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
16791 "2601 failed to read config "
16792 "region 23, rc 0x%x Status 0x%x\n",
16793 rc
, mb
->mbxStatus
);
16794 mb
->un
.varDmp
.word_cnt
= 0;
16797 * dump mem may return a zero when finished or we got a
16798 * mailbox error, either way we are done.
16800 if (mb
->un
.varDmp
.word_cnt
== 0)
16802 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
16803 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
16805 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
16806 rgn23_data
+ offset
,
16807 mb
->un
.varDmp
.word_cnt
);
16808 offset
+= mb
->un
.varDmp
.word_cnt
;
16809 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
16811 mempool_free(pmb
, phba
->mbox_mem_pool
);
16816 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16817 * @phba: pointer to lpfc hba data structure.
16818 * @rgn23_data: pointer to configure region 23 data.
16820 * This function gets SLI4 port configure region 23 data through memory dump
16821 * mailbox command. When it successfully retrieves data, the size of the data
16822 * will be returned, otherwise, 0 will be returned.
16825 lpfc_sli4_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
16827 LPFC_MBOXQ_t
*mboxq
= NULL
;
16828 struct lpfc_dmabuf
*mp
= NULL
;
16829 struct lpfc_mqe
*mqe
;
16830 uint32_t data_length
= 0;
16836 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16838 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16839 "3105 failed to allocate mailbox memory\n");
16843 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
))
16845 mqe
= &mboxq
->u
.mqe
;
16846 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
16847 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
16850 data_length
= mqe
->un
.mb_words
[5];
16851 if (data_length
== 0)
16853 if (data_length
> DMP_RGN23_SIZE
) {
16857 lpfc_sli_pcimem_bcopy((char *)mp
->virt
, rgn23_data
, data_length
);
16859 mempool_free(mboxq
, phba
->mbox_mem_pool
);
16861 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
16864 return data_length
;
16868 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16869 * @phba: pointer to lpfc hba data structure.
16871 * This function read region 23 and parse TLV for port status to
16872 * decide if the user disaled the port. If the TLV indicates the
16873 * port is disabled, the hba_flag is set accordingly.
16876 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
16878 uint8_t *rgn23_data
= NULL
;
16879 uint32_t if_type
, data_size
, sub_tlv_len
, tlv_offset
;
16880 uint32_t offset
= 0;
16882 /* Get adapter Region 23 data */
16883 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
16887 if (phba
->sli_rev
< LPFC_SLI_REV4
)
16888 data_size
= lpfc_sli_get_config_region23(phba
, rgn23_data
);
16890 if_type
= bf_get(lpfc_sli_intf_if_type
,
16891 &phba
->sli4_hba
.sli_intf
);
16892 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
)
16894 data_size
= lpfc_sli4_get_config_region23(phba
, rgn23_data
);
16900 /* Check the region signature first */
16901 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
16902 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16903 "2619 Config region 23 has bad signature\n");
16908 /* Check the data structure version */
16909 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
16910 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16911 "2620 Config region 23 has bad version\n");
16916 /* Parse TLV entries in the region */
16917 while (offset
< data_size
) {
16918 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
16921 * If the TLV is not driver specific TLV or driver id is
16922 * not linux driver id, skip the record.
16924 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
16925 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
16926 (rgn23_data
[offset
+ 3] != 0)) {
16927 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16931 /* Driver found a driver specific TLV in the config region */
16932 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
16937 * Search for configured port state sub-TLV.
16939 while ((offset
< data_size
) &&
16940 (tlv_offset
< sub_tlv_len
)) {
16941 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
16946 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
16947 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16948 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16952 /* This HBA contains PORT_STE configured */
16953 if (!rgn23_data
[offset
+ 2])
16954 phba
->hba_flag
|= LINK_DISABLED
;
16966 * lpfc_wr_object - write an object to the firmware
16967 * @phba: HBA structure that indicates port to create a queue on.
16968 * @dmabuf_list: list of dmabufs to write to the port.
16969 * @size: the total byte value of the objects to write to the port.
16970 * @offset: the current offset to be used to start the transfer.
16972 * This routine will create a wr_object mailbox command to send to the port.
16973 * the mailbox command will be constructed using the dma buffers described in
16974 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
16975 * BDEs that the imbedded mailbox can support. The @offset variable will be
16976 * used to indicate the starting offset of the transfer and will also return
16977 * the offset after the write object mailbox has completed. @size is used to
16978 * determine the end of the object and whether the eof bit should be set.
16980 * Return 0 is successful and offset will contain the the new offset to use
16981 * for the next write.
16982 * Return negative value for error cases.
16985 lpfc_wr_object(struct lpfc_hba
*phba
, struct list_head
*dmabuf_list
,
16986 uint32_t size
, uint32_t *offset
)
16988 struct lpfc_mbx_wr_object
*wr_object
;
16989 LPFC_MBOXQ_t
*mbox
;
16991 uint32_t shdr_status
, shdr_add_status
;
16993 union lpfc_sli4_cfg_shdr
*shdr
;
16994 struct lpfc_dmabuf
*dmabuf
;
16995 uint32_t written
= 0;
16997 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
17001 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
17002 LPFC_MBOX_OPCODE_WRITE_OBJECT
,
17003 sizeof(struct lpfc_mbx_wr_object
) -
17004 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
17006 wr_object
= (struct lpfc_mbx_wr_object
*)&mbox
->u
.mqe
.un
.wr_object
;
17007 wr_object
->u
.request
.write_offset
= *offset
;
17008 sprintf((uint8_t *)wr_object
->u
.request
.object_name
, "/");
17009 wr_object
->u
.request
.object_name
[0] =
17010 cpu_to_le32(wr_object
->u
.request
.object_name
[0]);
17011 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 0);
17012 list_for_each_entry(dmabuf
, dmabuf_list
, list
) {
17013 if (i
>= LPFC_MBX_WR_CONFIG_MAX_BDE
|| written
>= size
)
17015 wr_object
->u
.request
.bde
[i
].addrLow
= putPaddrLow(dmabuf
->phys
);
17016 wr_object
->u
.request
.bde
[i
].addrHigh
=
17017 putPaddrHigh(dmabuf
->phys
);
17018 if (written
+ SLI4_PAGE_SIZE
>= size
) {
17019 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
17021 written
+= (size
- written
);
17022 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 1);
17024 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
17026 written
+= SLI4_PAGE_SIZE
;
17030 wr_object
->u
.request
.bde_count
= i
;
17031 bf_set(lpfc_wr_object_write_length
, &wr_object
->u
.request
, written
);
17032 if (!phba
->sli4_hba
.intr_enable
)
17033 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
17035 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
17036 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
17038 /* The IOCTL status is embedded in the mailbox subheader. */
17039 shdr
= (union lpfc_sli4_cfg_shdr
*) &wr_object
->header
.cfg_shdr
;
17040 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
17041 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
17042 if (rc
!= MBX_TIMEOUT
)
17043 mempool_free(mbox
, phba
->mbox_mem_pool
);
17044 if (shdr_status
|| shdr_add_status
|| rc
) {
17045 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
17046 "3025 Write Object mailbox failed with "
17047 "status x%x add_status x%x, mbx status x%x\n",
17048 shdr_status
, shdr_add_status
, rc
);
17051 *offset
+= wr_object
->u
.response
.actual_write_length
;
17056 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
17057 * @vport: pointer to vport data structure.
17059 * This function iterate through the mailboxq and clean up all REG_LOGIN
17060 * and REG_VPI mailbox commands associated with the vport. This function
17061 * is called when driver want to restart discovery of the vport due to
17062 * a Clear Virtual Link event.
17065 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
17067 struct lpfc_hba
*phba
= vport
->phba
;
17068 LPFC_MBOXQ_t
*mb
, *nextmb
;
17069 struct lpfc_dmabuf
*mp
;
17070 struct lpfc_nodelist
*ndlp
;
17071 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
17072 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
17073 LIST_HEAD(mbox_cmd_list
);
17074 uint8_t restart_loop
;
17076 /* Clean up internally queued mailbox commands with the vport */
17077 spin_lock_irq(&phba
->hbalock
);
17078 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
17079 if (mb
->vport
!= vport
)
17082 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
17083 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
17086 list_del(&mb
->list
);
17087 list_add_tail(&mb
->list
, &mbox_cmd_list
);
17089 /* Clean up active mailbox command with the vport */
17090 mb
= phba
->sli
.mbox_active
;
17091 if (mb
&& (mb
->vport
== vport
)) {
17092 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
17093 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
17094 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
17095 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17096 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
17097 /* Put reference count for delayed processing */
17098 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
17099 /* Unregister the RPI when mailbox complete */
17100 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
17103 /* Cleanup any mailbox completions which are not yet processed */
17106 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
17108 * If this mailox is already processed or it is
17109 * for another vport ignore it.
17111 if ((mb
->vport
!= vport
) ||
17112 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
))
17115 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
17116 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
17119 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
17120 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17121 ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
17122 /* Unregister the RPI when mailbox complete */
17123 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
17125 spin_unlock_irq(&phba
->hbalock
);
17126 spin_lock(shost
->host_lock
);
17127 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17128 spin_unlock(shost
->host_lock
);
17129 spin_lock_irq(&phba
->hbalock
);
17133 } while (restart_loop
);
17135 spin_unlock_irq(&phba
->hbalock
);
17137 /* Release the cleaned-up mailbox commands */
17138 while (!list_empty(&mbox_cmd_list
)) {
17139 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
17140 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17141 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
17143 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
17146 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
17147 mb
->context2
= NULL
;
17149 spin_lock(shost
->host_lock
);
17150 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17151 spin_unlock(shost
->host_lock
);
17152 lpfc_nlp_put(ndlp
);
17155 mempool_free(mb
, phba
->mbox_mem_pool
);
17158 /* Release the ndlp with the cleaned-up active mailbox command */
17159 if (act_mbx_ndlp
) {
17160 spin_lock(shost
->host_lock
);
17161 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17162 spin_unlock(shost
->host_lock
);
17163 lpfc_nlp_put(act_mbx_ndlp
);
17168 * lpfc_drain_txq - Drain the txq
17169 * @phba: Pointer to HBA context object.
17171 * This function attempt to submit IOCBs on the txq
17172 * to the adapter. For SLI4 adapters, the txq contains
17173 * ELS IOCBs that have been deferred because the there
17174 * are no SGLs. This congestion can occur with large
17175 * vport counts during node discovery.
17179 lpfc_drain_txq(struct lpfc_hba
*phba
)
17181 LIST_HEAD(completions
);
17182 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
17183 struct lpfc_iocbq
*piocbq
= NULL
;
17184 unsigned long iflags
= 0;
17185 char *fail_msg
= NULL
;
17186 struct lpfc_sglq
*sglq
;
17187 union lpfc_wqe wqe
;
17188 uint32_t txq_cnt
= 0;
17190 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
17191 list_for_each_entry(piocbq
, &pring
->txq
, list
) {
17195 if (txq_cnt
> pring
->txq_max
)
17196 pring
->txq_max
= txq_cnt
;
17198 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17200 while (!list_empty(&pring
->txq
)) {
17201 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
17203 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
17205 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17206 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
17207 "2823 txq empty and txq_cnt is %d\n ",
17211 sglq
= __lpfc_sli_get_sglq(phba
, piocbq
);
17213 __lpfc_sli_ringtx_put(phba
, pring
, piocbq
);
17214 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17219 /* The xri and iocb resources secured,
17220 * attempt to issue request
17222 piocbq
->sli4_lxritag
= sglq
->sli4_lxritag
;
17223 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
17224 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
17225 fail_msg
= "to convert bpl to sgl";
17226 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
17227 fail_msg
= "to convert iocb to wqe";
17228 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
17229 fail_msg
= " - Wq is full";
17231 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
17234 /* Failed means we can't issue and need to cancel */
17235 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
17236 "2822 IOCB failed %s iotag 0x%x "
17239 piocbq
->iotag
, piocbq
->sli4_xritag
);
17240 list_add_tail(&piocbq
->list
, &completions
);
17242 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17245 /* Cancel all the IOCBs that cannot be issued */
17246 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
17247 IOERR_SLI_ABORTED
);