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"
50 #include "lpfc_version.h"
52 /* There are only four IOCB completion types. */
53 typedef enum _lpfc_iocb_type
{
61 /* Provide function prototypes local to this module. */
62 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
64 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
65 uint8_t *, uint32_t *);
66 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
68 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
70 static int lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*, struct lpfc_queue
*,
72 static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*, struct list_head
*,
74 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*, struct lpfc_eqe
*,
76 static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba
*phba
);
77 static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba
*phba
);
80 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
86 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
87 * @q: The Work Queue to operate on.
88 * @wqe: The work Queue Entry to put on the Work queue.
90 * This routine will copy the contents of @wqe to the next available entry on
91 * the @q. This function will then ring the Work Queue Doorbell to signal the
92 * HBA to start processing the Work Queue Entry. This function returns 0 if
93 * successful. If no entries are available on @q then this function will return
95 * The caller is expected to hold the hbalock when calling this routine.
98 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
100 union lpfc_wqe
*temp_wqe
;
101 struct lpfc_register doorbell
;
105 /* sanity check on queue memory */
108 temp_wqe
= q
->qe
[q
->host_index
].wqe
;
110 /* If the host has not yet processed the next entry then we are done */
111 idx
= ((q
->host_index
+ 1) % q
->entry_count
);
112 if (idx
== q
->hba_index
) {
117 /* set consumption flag every once in a while */
118 if (!((q
->host_index
+ 1) % q
->entry_repost
))
119 bf_set(wqe_wqec
, &wqe
->generic
.wqe_com
, 1);
120 if (q
->phba
->sli3_options
& LPFC_SLI4_PHWQ_ENABLED
)
121 bf_set(wqe_wqid
, &wqe
->generic
.wqe_com
, q
->queue_id
);
122 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
124 /* Update the host index before invoking device */
125 host_index
= q
->host_index
;
131 if (q
->db_format
== LPFC_DB_LIST_FORMAT
) {
132 bf_set(lpfc_wq_db_list_fm_num_posted
, &doorbell
, 1);
133 bf_set(lpfc_wq_db_list_fm_index
, &doorbell
, host_index
);
134 bf_set(lpfc_wq_db_list_fm_id
, &doorbell
, q
->queue_id
);
135 } else if (q
->db_format
== LPFC_DB_RING_FORMAT
) {
136 bf_set(lpfc_wq_db_ring_fm_num_posted
, &doorbell
, 1);
137 bf_set(lpfc_wq_db_ring_fm_id
, &doorbell
, q
->queue_id
);
141 writel(doorbell
.word0
, q
->db_regaddr
);
147 * lpfc_sli4_wq_release - Updates internal hba index for WQ
148 * @q: The Work Queue to operate on.
149 * @index: The index to advance the hba index to.
151 * This routine will update the HBA index of a queue to reflect consumption of
152 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
153 * an entry the host calls this function to update the queue's internal
154 * pointers. This routine returns the number of entries that were consumed by
158 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
160 uint32_t released
= 0;
162 /* sanity check on queue memory */
166 if (q
->hba_index
== index
)
169 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
171 } while (q
->hba_index
!= index
);
176 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
177 * @q: The Mailbox Queue to operate on.
178 * @wqe: The Mailbox Queue Entry to put on the Work queue.
180 * This routine will copy the contents of @mqe to the next available entry on
181 * the @q. This function will then ring the Work Queue Doorbell to signal the
182 * HBA to start processing the Work Queue Entry. This function returns 0 if
183 * successful. If no entries are available on @q then this function will return
185 * The caller is expected to hold the hbalock when calling this routine.
188 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
190 struct lpfc_mqe
*temp_mqe
;
191 struct lpfc_register doorbell
;
193 /* sanity check on queue memory */
196 temp_mqe
= q
->qe
[q
->host_index
].mqe
;
198 /* If the host has not yet processed the next entry then we are done */
199 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
201 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
202 /* Save off the mailbox pointer for completion */
203 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
205 /* Update the host index before invoking device */
206 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
210 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
211 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
212 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
217 * lpfc_sli4_mq_release - Updates internal hba index for MQ
218 * @q: The Mailbox Queue to operate on.
220 * This routine will update the HBA index of a queue to reflect consumption of
221 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
222 * an entry the host calls this function to update the queue's internal
223 * pointers. This routine returns the number of entries that were consumed by
227 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
229 /* sanity check on queue memory */
233 /* Clear the mailbox pointer for completion */
234 q
->phba
->mbox
= NULL
;
235 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
240 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
241 * @q: The Event Queue to get the first valid EQE from
243 * This routine will get the first valid Event Queue Entry from @q, update
244 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
245 * the Queue (no more work to do), or the Queue is full of EQEs that have been
246 * processed, but not popped back to the HBA then this routine will return NULL.
248 static struct lpfc_eqe
*
249 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
251 struct lpfc_eqe
*eqe
;
254 /* sanity check on queue memory */
257 eqe
= q
->qe
[q
->hba_index
].eqe
;
259 /* If the next EQE is not valid then we are done */
260 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
262 /* If the host has not yet processed the next entry then we are done */
263 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
264 if (idx
== q
->host_index
)
270 * insert barrier for instruction interlock : data from the hardware
271 * must have the valid bit checked before it can be copied and acted
272 * upon. Given what was seen in lpfc_sli4_cq_get() of speculative
273 * instructions allowing action on content before valid bit checked,
274 * add barrier here as well. May not be needed as "content" is a
275 * single 32-bit entity here (vs multi word structure for cq's).
282 * lpfc_sli4_eq_clr_intr - Turn off interrupts from this EQ
283 * @q: The Event Queue to disable interrupts
287 lpfc_sli4_eq_clr_intr(struct lpfc_queue
*q
)
289 struct lpfc_register doorbell
;
292 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
293 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
294 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
295 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
296 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
297 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
301 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
302 * @q: The Event Queue that the host has completed processing for.
303 * @arm: Indicates whether the host wants to arms this CQ.
305 * This routine will mark all Event Queue Entries on @q, from the last
306 * known completed entry to the last entry that was processed, as completed
307 * by clearing the valid bit for each completion queue entry. Then it will
308 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
309 * The internal host index in the @q will be updated by this routine to indicate
310 * that the host has finished processing the entries. The @arm parameter
311 * indicates that the queue should be rearmed when ringing the doorbell.
313 * This function will return the number of EQEs that were popped.
316 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
318 uint32_t released
= 0;
319 struct lpfc_eqe
*temp_eqe
;
320 struct lpfc_register doorbell
;
322 /* sanity check on queue memory */
326 /* while there are valid entries */
327 while (q
->hba_index
!= q
->host_index
) {
328 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
329 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
331 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
333 if (unlikely(released
== 0 && !arm
))
336 /* ring doorbell for number popped */
339 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
340 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
342 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
343 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
344 bf_set(lpfc_eqcq_doorbell_eqid_hi
, &doorbell
,
345 (q
->queue_id
>> LPFC_EQID_HI_FIELD_SHIFT
));
346 bf_set(lpfc_eqcq_doorbell_eqid_lo
, &doorbell
, q
->queue_id
);
347 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
348 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
349 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
350 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
355 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
356 * @q: The Completion Queue to get the first valid CQE from
358 * This routine will get the first valid Completion Queue Entry from @q, update
359 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
360 * the Queue (no more work to do), or the Queue is full of CQEs that have been
361 * processed, but not popped back to the HBA then this routine will return NULL.
363 static struct lpfc_cqe
*
364 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
366 struct lpfc_cqe
*cqe
;
369 /* sanity check on queue memory */
373 /* If the next CQE is not valid then we are done */
374 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
376 /* If the host has not yet processed the next entry then we are done */
377 idx
= ((q
->hba_index
+ 1) % q
->entry_count
);
378 if (idx
== q
->host_index
)
381 cqe
= q
->qe
[q
->hba_index
].cqe
;
385 * insert barrier for instruction interlock : data from the hardware
386 * must have the valid bit checked before it can be copied and acted
387 * upon. Speculative instructions were allowing a bcopy at the start
388 * of lpfc_sli4_fp_handle_wcqe(), which is called immediately
389 * after our return, to copy data before the valid bit check above
390 * was done. As such, some of the copied data was stale. The barrier
391 * ensures the check is before any data is copied.
398 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
399 * @q: The Completion Queue that the host has completed processing for.
400 * @arm: Indicates whether the host wants to arms this CQ.
402 * This routine will mark all Completion queue entries on @q, from the last
403 * known completed entry to the last entry that was processed, as completed
404 * by clearing the valid bit for each completion queue entry. Then it will
405 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
406 * The internal host index in the @q will be updated by this routine to indicate
407 * that the host has finished processing the entries. The @arm parameter
408 * indicates that the queue should be rearmed when ringing the doorbell.
410 * This function will return the number of CQEs that were released.
413 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
415 uint32_t released
= 0;
416 struct lpfc_cqe
*temp_qe
;
417 struct lpfc_register doorbell
;
419 /* sanity check on queue memory */
422 /* while there are valid entries */
423 while (q
->hba_index
!= q
->host_index
) {
424 temp_qe
= q
->qe
[q
->host_index
].cqe
;
425 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
427 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
429 if (unlikely(released
== 0 && !arm
))
432 /* ring doorbell for number popped */
435 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
436 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
437 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
438 bf_set(lpfc_eqcq_doorbell_cqid_hi
, &doorbell
,
439 (q
->queue_id
>> LPFC_CQID_HI_FIELD_SHIFT
));
440 bf_set(lpfc_eqcq_doorbell_cqid_lo
, &doorbell
, q
->queue_id
);
441 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
446 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
447 * @q: The Header Receive Queue to operate on.
448 * @wqe: The Receive Queue Entry to put on the Receive queue.
450 * This routine will copy the contents of @wqe to the next available entry on
451 * the @q. This function will then ring the Receive Queue Doorbell to signal the
452 * HBA to start processing the Receive Queue Entry. This function returns the
453 * index that the rqe was copied to if successful. If no entries are available
454 * on @q then this function will return -ENOMEM.
455 * The caller is expected to hold the hbalock when calling this routine.
458 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
459 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
461 struct lpfc_rqe
*temp_hrqe
;
462 struct lpfc_rqe
*temp_drqe
;
463 struct lpfc_register doorbell
;
466 /* sanity check on queue memory */
467 if (unlikely(!hq
) || unlikely(!dq
))
469 put_index
= hq
->host_index
;
470 temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
471 temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
473 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
475 if (hq
->host_index
!= dq
->host_index
)
477 /* If the host has not yet processed the next entry then we are done */
478 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
480 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
481 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
483 /* Update the host index to point to the next slot */
484 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
485 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
487 /* Ring The Header Receive Queue Doorbell */
488 if (!(hq
->host_index
% hq
->entry_repost
)) {
490 if (hq
->db_format
== LPFC_DB_RING_FORMAT
) {
491 bf_set(lpfc_rq_db_ring_fm_num_posted
, &doorbell
,
493 bf_set(lpfc_rq_db_ring_fm_id
, &doorbell
, hq
->queue_id
);
494 } else if (hq
->db_format
== LPFC_DB_LIST_FORMAT
) {
495 bf_set(lpfc_rq_db_list_fm_num_posted
, &doorbell
,
497 bf_set(lpfc_rq_db_list_fm_index
, &doorbell
,
499 bf_set(lpfc_rq_db_list_fm_id
, &doorbell
, hq
->queue_id
);
503 writel(doorbell
.word0
, hq
->db_regaddr
);
509 * lpfc_sli4_rq_release - Updates internal hba index for RQ
510 * @q: The Header Receive Queue to operate on.
512 * This routine will update the HBA index of a queue to reflect consumption of
513 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
514 * consumed an entry the host calls this function to update the queue's
515 * internal pointers. This routine returns the number of entries that were
516 * consumed by the HBA.
519 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
521 /* sanity check on queue memory */
522 if (unlikely(!hq
) || unlikely(!dq
))
525 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
527 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
528 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
533 * lpfc_cmd_iocb - Get next command iocb entry in the ring
534 * @phba: Pointer to HBA context object.
535 * @pring: Pointer to driver SLI ring object.
537 * This function returns pointer to next command iocb entry
538 * in the command ring. The caller must hold hbalock to prevent
539 * other threads consume the next command iocb.
540 * SLI-2/SLI-3 provide different sized iocbs.
542 static inline IOCB_t
*
543 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
545 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.cmdringaddr
) +
546 pring
->sli
.sli3
.cmdidx
* phba
->iocb_cmd_size
);
550 * lpfc_resp_iocb - Get next response iocb entry in the ring
551 * @phba: Pointer to HBA context object.
552 * @pring: Pointer to driver SLI ring object.
554 * This function returns pointer to next response iocb entry
555 * in the response ring. The caller must hold hbalock to make sure
556 * that no other thread consume the next response iocb.
557 * SLI-2/SLI-3 provide different sized iocbs.
559 static inline IOCB_t
*
560 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
562 return (IOCB_t
*) (((char *) pring
->sli
.sli3
.rspringaddr
) +
563 pring
->sli
.sli3
.rspidx
* phba
->iocb_rsp_size
);
567 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
568 * @phba: Pointer to HBA context object.
570 * This function is called with hbalock held. This function
571 * allocates a new driver iocb object from the iocb pool. If the
572 * allocation is successful, it returns pointer to the newly
573 * allocated iocb object else it returns NULL.
576 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
578 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
579 struct lpfc_iocbq
* iocbq
= NULL
;
581 lockdep_assert_held(&phba
->hbalock
);
583 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
586 if (phba
->iocb_cnt
> phba
->iocb_max
)
587 phba
->iocb_max
= phba
->iocb_cnt
;
592 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
593 * @phba: Pointer to HBA context object.
594 * @xritag: XRI value.
596 * This function clears the sglq pointer from the array of acive
597 * sglq's. The xritag that is passed in is used to index into the
598 * array. Before the xritag can be used it needs to be adjusted
599 * by subtracting the xribase.
601 * Returns sglq ponter = success, NULL = Failure.
603 static struct lpfc_sglq
*
604 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
606 struct lpfc_sglq
*sglq
;
608 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
609 phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
] = NULL
;
614 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
615 * @phba: Pointer to HBA context object.
616 * @xritag: XRI value.
618 * This function returns the sglq pointer from the array of acive
619 * sglq's. The xritag that is passed in is used to index into the
620 * array. Before the xritag can be used it needs to be adjusted
621 * by subtracting the xribase.
623 * Returns sglq ponter = success, NULL = Failure.
626 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
628 struct lpfc_sglq
*sglq
;
630 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[xritag
];
635 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
636 * @phba: Pointer to HBA context object.
637 * @xritag: xri used in this exchange.
638 * @rrq: The RRQ to be cleared.
642 lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
644 struct lpfc_node_rrq
*rrq
)
646 struct lpfc_nodelist
*ndlp
= NULL
;
648 if ((rrq
->vport
) && NLP_CHK_NODE_ACT(rrq
->ndlp
))
649 ndlp
= lpfc_findnode_did(rrq
->vport
, rrq
->nlp_DID
);
651 /* The target DID could have been swapped (cable swap)
652 * we should use the ndlp from the findnode if it is
655 if ((!ndlp
) && rrq
->ndlp
)
661 if (test_and_clear_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
)) {
664 rrq
->rrq_stop_time
= 0;
667 mempool_free(rrq
, phba
->rrq_pool
);
671 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
672 * @phba: Pointer to HBA context object.
674 * This function is called with hbalock held. This function
675 * Checks if stop_time (ratov from setting rrq active) has
676 * been reached, if it has and the send_rrq flag is set then
677 * it will call lpfc_send_rrq. If the send_rrq flag is not set
678 * then it will just call the routine to clear the rrq and
679 * free the rrq resource.
680 * The timer is set to the next rrq that is going to expire before
681 * leaving the routine.
685 lpfc_handle_rrq_active(struct lpfc_hba
*phba
)
687 struct lpfc_node_rrq
*rrq
;
688 struct lpfc_node_rrq
*nextrrq
;
689 unsigned long next_time
;
690 unsigned long iflags
;
693 spin_lock_irqsave(&phba
->hbalock
, iflags
);
694 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
695 next_time
= jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
696 list_for_each_entry_safe(rrq
, nextrrq
,
697 &phba
->active_rrq_list
, list
) {
698 if (time_after(jiffies
, rrq
->rrq_stop_time
))
699 list_move(&rrq
->list
, &send_rrq
);
700 else if (time_before(rrq
->rrq_stop_time
, next_time
))
701 next_time
= rrq
->rrq_stop_time
;
703 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
704 if ((!list_empty(&phba
->active_rrq_list
)) &&
705 (!(phba
->pport
->load_flag
& FC_UNLOADING
)))
706 mod_timer(&phba
->rrq_tmr
, next_time
);
707 list_for_each_entry_safe(rrq
, nextrrq
, &send_rrq
, list
) {
708 list_del(&rrq
->list
);
710 /* this call will free the rrq */
711 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
712 else if (lpfc_send_rrq(phba
, rrq
)) {
713 /* if we send the rrq then the completion handler
714 * will clear the bit in the xribitmap.
716 lpfc_clr_rrq_active(phba
, rrq
->xritag
,
723 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
724 * @vport: Pointer to vport context object.
725 * @xri: The xri used in the exchange.
726 * @did: The targets DID for this exchange.
728 * returns NULL = rrq not found in the phba->active_rrq_list.
729 * rrq = rrq for this xri and target.
731 struct lpfc_node_rrq
*
732 lpfc_get_active_rrq(struct lpfc_vport
*vport
, uint16_t xri
, uint32_t did
)
734 struct lpfc_hba
*phba
= vport
->phba
;
735 struct lpfc_node_rrq
*rrq
;
736 struct lpfc_node_rrq
*nextrrq
;
737 unsigned long iflags
;
739 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
741 spin_lock_irqsave(&phba
->hbalock
, iflags
);
742 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
743 if (rrq
->vport
== vport
&& rrq
->xritag
== xri
&&
744 rrq
->nlp_DID
== did
){
745 list_del(&rrq
->list
);
746 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
750 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
755 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
756 * @vport: Pointer to vport context object.
757 * @ndlp: Pointer to the lpfc_node_list structure.
758 * If ndlp is NULL Remove all active RRQs for this vport from the
759 * phba->active_rrq_list and clear the rrq.
760 * If ndlp is not NULL then only remove rrqs for this vport & this ndlp.
763 lpfc_cleanup_vports_rrqs(struct lpfc_vport
*vport
, struct lpfc_nodelist
*ndlp
)
766 struct lpfc_hba
*phba
= vport
->phba
;
767 struct lpfc_node_rrq
*rrq
;
768 struct lpfc_node_rrq
*nextrrq
;
769 unsigned long iflags
;
772 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
775 lpfc_sli4_vport_delete_els_xri_aborted(vport
);
776 lpfc_sli4_vport_delete_fcp_xri_aborted(vport
);
778 spin_lock_irqsave(&phba
->hbalock
, iflags
);
779 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
)
780 if ((rrq
->vport
== vport
) && (!ndlp
|| rrq
->ndlp
== ndlp
))
781 list_move(&rrq
->list
, &rrq_list
);
782 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
784 list_for_each_entry_safe(rrq
, nextrrq
, &rrq_list
, list
) {
785 list_del(&rrq
->list
);
786 lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
791 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
792 * @phba: Pointer to HBA context object.
793 * @ndlp: Targets nodelist pointer for this exchange.
794 * @xritag the xri in the bitmap to test.
796 * This function is called with hbalock held. This function
797 * returns 0 = rrq not active for this xri
798 * 1 = rrq is valid for this xri.
801 lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
804 lockdep_assert_held(&phba
->hbalock
);
807 if (!ndlp
->active_rrqs_xri_bitmap
)
809 if (test_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
))
816 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
817 * @phba: Pointer to HBA context object.
818 * @ndlp: nodelist pointer for this target.
819 * @xritag: xri used in this exchange.
820 * @rxid: Remote Exchange ID.
821 * @send_rrq: Flag used to determine if we should send rrq els cmd.
823 * This function takes the hbalock.
824 * The active bit is always set in the active rrq xri_bitmap even
825 * if there is no slot avaiable for the other rrq information.
827 * returns 0 rrq actived for this xri
828 * < 0 No memory or invalid ndlp.
831 lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
832 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
834 unsigned long iflags
;
835 struct lpfc_node_rrq
*rrq
;
841 if (!phba
->cfg_enable_rrq
)
844 spin_lock_irqsave(&phba
->hbalock
, iflags
);
845 if (phba
->pport
->load_flag
& FC_UNLOADING
) {
846 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
851 * set the active bit even if there is no mem available.
853 if (NLP_CHK_FREE_REQ(ndlp
))
856 if (ndlp
->vport
&& (ndlp
->vport
->load_flag
& FC_UNLOADING
))
859 if (!ndlp
->active_rrqs_xri_bitmap
)
862 if (test_and_set_bit(xritag
, ndlp
->active_rrqs_xri_bitmap
))
865 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
866 rrq
= mempool_alloc(phba
->rrq_pool
, GFP_KERNEL
);
868 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
869 "3155 Unable to allocate RRQ xri:0x%x rxid:0x%x"
870 " DID:0x%x Send:%d\n",
871 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
874 if (phba
->cfg_enable_rrq
== 1)
875 rrq
->send_rrq
= send_rrq
;
878 rrq
->xritag
= xritag
;
879 rrq
->rrq_stop_time
= jiffies
+
880 msecs_to_jiffies(1000 * (phba
->fc_ratov
+ 1));
882 rrq
->nlp_DID
= ndlp
->nlp_DID
;
883 rrq
->vport
= ndlp
->vport
;
885 spin_lock_irqsave(&phba
->hbalock
, iflags
);
886 empty
= list_empty(&phba
->active_rrq_list
);
887 list_add_tail(&rrq
->list
, &phba
->active_rrq_list
);
888 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
890 lpfc_worker_wake_up(phba
);
891 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
894 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
895 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
896 "2921 Can't set rrq active xri:0x%x rxid:0x%x"
897 " DID:0x%x Send:%d\n",
898 xritag
, rxid
, ndlp
->nlp_DID
, send_rrq
);
903 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
904 * @phba: Pointer to HBA context object.
905 * @piocb: Pointer to the iocbq.
907 * This function is called with the ring lock held. This function
908 * gets a new driver sglq object from the sglq list. If the
909 * list is not empty then it is successful, it returns pointer to the newly
910 * allocated sglq object else it returns NULL.
912 static struct lpfc_sglq
*
913 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
)
915 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
916 struct lpfc_sglq
*sglq
= NULL
;
917 struct lpfc_sglq
*start_sglq
= NULL
;
918 struct lpfc_scsi_buf
*lpfc_cmd
;
919 struct lpfc_nodelist
*ndlp
;
922 lockdep_assert_held(&phba
->hbalock
);
924 if (piocbq
->iocb_flag
& LPFC_IO_FCP
) {
925 lpfc_cmd
= (struct lpfc_scsi_buf
*) piocbq
->context1
;
926 ndlp
= lpfc_cmd
->rdata
->pnode
;
927 } else if ((piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) &&
928 !(piocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
929 ndlp
= piocbq
->context_un
.ndlp
;
930 } else if (piocbq
->iocb_flag
& LPFC_IO_LIBDFC
) {
931 if (piocbq
->iocb_flag
& LPFC_IO_LOOPBACK
)
934 ndlp
= piocbq
->context_un
.ndlp
;
936 ndlp
= piocbq
->context1
;
939 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
944 if (lpfc_test_rrq_active(phba
, ndlp
, sglq
->sli4_lxritag
)) {
945 /* This xri has an rrq outstanding for this DID.
946 * put it back in the list and get another xri.
948 list_add_tail(&sglq
->list
, lpfc_sgl_list
);
950 list_remove_head(lpfc_sgl_list
, sglq
,
951 struct lpfc_sglq
, list
);
952 if (sglq
== start_sglq
) {
960 phba
->sli4_hba
.lpfc_sglq_active_list
[sglq
->sli4_lxritag
] = sglq
;
961 sglq
->state
= SGL_ALLOCATED
;
967 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
968 * @phba: Pointer to HBA context object.
970 * This function is called with no lock held. This function
971 * allocates a new driver iocb object from the iocb pool. If the
972 * allocation is successful, it returns pointer to the newly
973 * allocated iocb object else it returns NULL.
976 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
978 struct lpfc_iocbq
* iocbq
= NULL
;
979 unsigned long iflags
;
981 spin_lock_irqsave(&phba
->hbalock
, iflags
);
982 iocbq
= __lpfc_sli_get_iocbq(phba
);
983 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
988 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
989 * @phba: Pointer to HBA context object.
990 * @iocbq: Pointer to driver iocb object.
992 * This function is called with hbalock held to release driver
993 * iocb object to the iocb pool. The iotag in the iocb object
994 * does not change for each use of the iocb object. This function
995 * clears all other fields of the iocb object when it is freed.
996 * The sqlq structure that holds the xritag and phys and virtual
997 * mappings for the scatter gather list is retrieved from the
998 * active array of sglq. The get of the sglq pointer also clears
999 * the entry in the array. If the status of the IO indiactes that
1000 * this IO was aborted then the sglq entry it put on the
1001 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
1002 * IO has good status or fails for any other reason then the sglq
1003 * entry is added to the free list (lpfc_sgl_list).
1006 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1008 struct lpfc_sglq
*sglq
;
1009 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1010 unsigned long iflag
= 0;
1011 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
1013 lockdep_assert_held(&phba
->hbalock
);
1015 if (iocbq
->sli4_xritag
== NO_XRI
)
1018 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_lxritag
);
1022 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
1023 (sglq
->state
!= SGL_XRI_ABORTED
)) {
1024 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
1026 list_add(&sglq
->list
,
1027 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
1028 spin_unlock_irqrestore(
1029 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
1031 spin_lock_irqsave(&pring
->ring_lock
, iflag
);
1032 sglq
->state
= SGL_FREED
;
1034 list_add_tail(&sglq
->list
,
1035 &phba
->sli4_hba
.lpfc_sgl_list
);
1036 spin_unlock_irqrestore(&pring
->ring_lock
, iflag
);
1038 /* Check if TXQ queue needs to be serviced */
1039 if (!list_empty(&pring
->txq
))
1040 lpfc_worker_wake_up(phba
);
1046 * Clean all volatile data fields, preserve iotag and node struct.
1048 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1049 iocbq
->sli4_lxritag
= NO_XRI
;
1050 iocbq
->sli4_xritag
= NO_XRI
;
1051 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1056 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
1057 * @phba: Pointer to HBA context object.
1058 * @iocbq: Pointer to driver iocb object.
1060 * This function is called with hbalock held to release driver
1061 * iocb object to the iocb pool. The iotag in the iocb object
1062 * does not change for each use of the iocb object. This function
1063 * clears all other fields of the iocb object when it is freed.
1066 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1068 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1070 lockdep_assert_held(&phba
->hbalock
);
1073 * Clean all volatile data fields, preserve iotag and node struct.
1075 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1076 iocbq
->sli4_xritag
= NO_XRI
;
1077 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1081 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1082 * @phba: Pointer to HBA context object.
1083 * @iocbq: Pointer to driver iocb object.
1085 * This function is called with hbalock held to release driver
1086 * iocb object to the iocb pool. The iotag in the iocb object
1087 * does not change for each use of the iocb object. This function
1088 * clears all other fields of the iocb object when it is freed.
1091 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1093 lockdep_assert_held(&phba
->hbalock
);
1095 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
1100 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1101 * @phba: Pointer to HBA context object.
1102 * @iocbq: Pointer to driver iocb object.
1104 * This function is called with no lock held to release the iocb to
1108 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1110 unsigned long iflags
;
1113 * Clean all volatile data fields, preserve iotag and node struct.
1115 spin_lock_irqsave(&phba
->hbalock
, iflags
);
1116 __lpfc_sli_release_iocbq(phba
, iocbq
);
1117 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
1121 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1122 * @phba: Pointer to HBA context object.
1123 * @iocblist: List of IOCBs.
1124 * @ulpstatus: ULP status in IOCB command field.
1125 * @ulpWord4: ULP word-4 in IOCB command field.
1127 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1128 * on the list by invoking the complete callback function associated with the
1129 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1133 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
1134 uint32_t ulpstatus
, uint32_t ulpWord4
)
1136 struct lpfc_iocbq
*piocb
;
1138 while (!list_empty(iocblist
)) {
1139 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
1140 if (!piocb
->iocb_cmpl
)
1141 lpfc_sli_release_iocbq(phba
, piocb
);
1143 piocb
->iocb
.ulpStatus
= ulpstatus
;
1144 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
1145 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
1152 * lpfc_sli_iocb_cmd_type - Get the iocb type
1153 * @iocb_cmnd: iocb command code.
1155 * This function is called by ring event handler function to get the iocb type.
1156 * This function translates the iocb command to an iocb command type used to
1157 * decide the final disposition of each completed IOCB.
1158 * The function returns
1159 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1160 * LPFC_SOL_IOCB if it is a solicited iocb completion
1161 * LPFC_ABORT_IOCB if it is an abort iocb
1162 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1164 * The caller is not required to hold any lock.
1166 static lpfc_iocb_type
1167 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
1169 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
1171 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
1174 switch (iocb_cmnd
) {
1175 case CMD_XMIT_SEQUENCE_CR
:
1176 case CMD_XMIT_SEQUENCE_CX
:
1177 case CMD_XMIT_BCAST_CN
:
1178 case CMD_XMIT_BCAST_CX
:
1179 case CMD_ELS_REQUEST_CR
:
1180 case CMD_ELS_REQUEST_CX
:
1181 case CMD_CREATE_XRI_CR
:
1182 case CMD_CREATE_XRI_CX
:
1183 case CMD_GET_RPI_CN
:
1184 case CMD_XMIT_ELS_RSP_CX
:
1185 case CMD_GET_RPI_CR
:
1186 case CMD_FCP_IWRITE_CR
:
1187 case CMD_FCP_IWRITE_CX
:
1188 case CMD_FCP_IREAD_CR
:
1189 case CMD_FCP_IREAD_CX
:
1190 case CMD_FCP_ICMND_CR
:
1191 case CMD_FCP_ICMND_CX
:
1192 case CMD_FCP_TSEND_CX
:
1193 case CMD_FCP_TRSP_CX
:
1194 case CMD_FCP_TRECEIVE_CX
:
1195 case CMD_FCP_AUTO_TRSP_CX
:
1196 case CMD_ADAPTER_MSG
:
1197 case CMD_ADAPTER_DUMP
:
1198 case CMD_XMIT_SEQUENCE64_CR
:
1199 case CMD_XMIT_SEQUENCE64_CX
:
1200 case CMD_XMIT_BCAST64_CN
:
1201 case CMD_XMIT_BCAST64_CX
:
1202 case CMD_ELS_REQUEST64_CR
:
1203 case CMD_ELS_REQUEST64_CX
:
1204 case CMD_FCP_IWRITE64_CR
:
1205 case CMD_FCP_IWRITE64_CX
:
1206 case CMD_FCP_IREAD64_CR
:
1207 case CMD_FCP_IREAD64_CX
:
1208 case CMD_FCP_ICMND64_CR
:
1209 case CMD_FCP_ICMND64_CX
:
1210 case CMD_FCP_TSEND64_CX
:
1211 case CMD_FCP_TRSP64_CX
:
1212 case CMD_FCP_TRECEIVE64_CX
:
1213 case CMD_GEN_REQUEST64_CR
:
1214 case CMD_GEN_REQUEST64_CX
:
1215 case CMD_XMIT_ELS_RSP64_CX
:
1216 case DSSCMD_IWRITE64_CR
:
1217 case DSSCMD_IWRITE64_CX
:
1218 case DSSCMD_IREAD64_CR
:
1219 case DSSCMD_IREAD64_CX
:
1220 type
= LPFC_SOL_IOCB
;
1222 case CMD_ABORT_XRI_CN
:
1223 case CMD_ABORT_XRI_CX
:
1224 case CMD_CLOSE_XRI_CN
:
1225 case CMD_CLOSE_XRI_CX
:
1226 case CMD_XRI_ABORTED_CX
:
1227 case CMD_ABORT_MXRI64_CN
:
1228 case CMD_XMIT_BLS_RSP64_CX
:
1229 type
= LPFC_ABORT_IOCB
;
1231 case CMD_RCV_SEQUENCE_CX
:
1232 case CMD_RCV_ELS_REQ_CX
:
1233 case CMD_RCV_SEQUENCE64_CX
:
1234 case CMD_RCV_ELS_REQ64_CX
:
1235 case CMD_ASYNC_STATUS
:
1236 case CMD_IOCB_RCV_SEQ64_CX
:
1237 case CMD_IOCB_RCV_ELS64_CX
:
1238 case CMD_IOCB_RCV_CONT64_CX
:
1239 case CMD_IOCB_RET_XRI64_CX
:
1240 type
= LPFC_UNSOL_IOCB
;
1242 case CMD_IOCB_XMIT_MSEQ64_CR
:
1243 case CMD_IOCB_XMIT_MSEQ64_CX
:
1244 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
1245 case CMD_IOCB_RCV_ELS_LIST64_CX
:
1246 case CMD_IOCB_CLOSE_EXTENDED_CN
:
1247 case CMD_IOCB_ABORT_EXTENDED_CN
:
1248 case CMD_IOCB_RET_HBQE64_CN
:
1249 case CMD_IOCB_FCP_IBIDIR64_CR
:
1250 case CMD_IOCB_FCP_IBIDIR64_CX
:
1251 case CMD_IOCB_FCP_ITASKMGT64_CX
:
1252 case CMD_IOCB_LOGENTRY_CN
:
1253 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
1254 printk("%s - Unhandled SLI-3 Command x%x\n",
1255 __func__
, iocb_cmnd
);
1256 type
= LPFC_UNKNOWN_IOCB
;
1259 type
= LPFC_UNKNOWN_IOCB
;
1267 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1268 * @phba: Pointer to HBA context object.
1270 * This function is called from SLI initialization code
1271 * to configure every ring of the HBA's SLI interface. The
1272 * caller is not required to hold any lock. This function issues
1273 * a config_ring mailbox command for each ring.
1274 * This function returns zero if successful else returns a negative
1278 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
1280 struct lpfc_sli
*psli
= &phba
->sli
;
1285 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1289 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
1290 for (i
= 0; i
< psli
->num_rings
; i
++) {
1291 lpfc_config_ring(phba
, i
, pmb
);
1292 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
1293 if (rc
!= MBX_SUCCESS
) {
1294 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1295 "0446 Adapter failed to init (%d), "
1296 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1298 rc
, pmbox
->mbxCommand
,
1299 pmbox
->mbxStatus
, i
);
1300 phba
->link_state
= LPFC_HBA_ERROR
;
1305 mempool_free(pmb
, phba
->mbox_mem_pool
);
1310 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1311 * @phba: Pointer to HBA context object.
1312 * @pring: Pointer to driver SLI ring object.
1313 * @piocb: Pointer to the driver iocb object.
1315 * This function is called with hbalock held. The function adds the
1316 * new iocb to txcmplq of the given ring. This function always returns
1317 * 0. If this function is called for ELS ring, this function checks if
1318 * there is a vport associated with the ELS command. This function also
1319 * starts els_tmofunc timer if this is an ELS command.
1322 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1323 struct lpfc_iocbq
*piocb
)
1325 lockdep_assert_held(&phba
->hbalock
);
1329 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
1330 piocb
->iocb_flag
|= LPFC_IO_ON_TXCMPLQ
;
1332 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
1333 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
1334 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
1335 BUG_ON(!piocb
->vport
);
1336 if (!(piocb
->vport
->load_flag
& FC_UNLOADING
))
1337 mod_timer(&piocb
->vport
->els_tmofunc
,
1339 msecs_to_jiffies(1000 * (phba
->fc_ratov
<< 1)));
1346 * lpfc_sli_ringtx_get - Get first element of the txq
1347 * @phba: Pointer to HBA context object.
1348 * @pring: Pointer to driver SLI ring object.
1350 * This function is called with hbalock held to get next
1351 * iocb in txq of the given ring. If there is any iocb in
1352 * the txq, the function returns first iocb in the list after
1353 * removing the iocb from the list, else it returns NULL.
1356 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1358 struct lpfc_iocbq
*cmd_iocb
;
1360 lockdep_assert_held(&phba
->hbalock
);
1362 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
1367 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1368 * @phba: Pointer to HBA context object.
1369 * @pring: Pointer to driver SLI ring object.
1371 * This function is called with hbalock held and the caller must post the
1372 * iocb without releasing the lock. If the caller releases the lock,
1373 * iocb slot returned by the function is not guaranteed to be available.
1374 * The function returns pointer to the next available iocb slot if there
1375 * is available slot in the ring, else it returns NULL.
1376 * If the get index of the ring is ahead of the put index, the function
1377 * will post an error attention event to the worker thread to take the
1378 * HBA to offline state.
1381 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1383 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
1384 uint32_t max_cmd_idx
= pring
->sli
.sli3
.numCiocb
;
1386 lockdep_assert_held(&phba
->hbalock
);
1388 if ((pring
->sli
.sli3
.next_cmdidx
== pring
->sli
.sli3
.cmdidx
) &&
1389 (++pring
->sli
.sli3
.next_cmdidx
>= max_cmd_idx
))
1390 pring
->sli
.sli3
.next_cmdidx
= 0;
1392 if (unlikely(pring
->sli
.sli3
.local_getidx
==
1393 pring
->sli
.sli3
.next_cmdidx
)) {
1395 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
1397 if (unlikely(pring
->sli
.sli3
.local_getidx
>= max_cmd_idx
)) {
1398 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
1399 "0315 Ring %d issue: portCmdGet %d "
1400 "is bigger than cmd ring %d\n",
1402 pring
->sli
.sli3
.local_getidx
,
1405 phba
->link_state
= LPFC_HBA_ERROR
;
1407 * All error attention handlers are posted to
1410 phba
->work_ha
|= HA_ERATT
;
1411 phba
->work_hs
= HS_FFER3
;
1413 lpfc_worker_wake_up(phba
);
1418 if (pring
->sli
.sli3
.local_getidx
== pring
->sli
.sli3
.next_cmdidx
)
1422 return lpfc_cmd_iocb(phba
, pring
);
1426 * lpfc_sli_next_iotag - Get an iotag for the iocb
1427 * @phba: Pointer to HBA context object.
1428 * @iocbq: Pointer to driver iocb object.
1430 * This function gets an iotag for the iocb. If there is no unused iotag and
1431 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1432 * array and assigns a new iotag.
1433 * The function returns the allocated iotag if successful, else returns zero.
1434 * Zero is not a valid iotag.
1435 * The caller is not required to hold any lock.
1438 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1440 struct lpfc_iocbq
**new_arr
;
1441 struct lpfc_iocbq
**old_arr
;
1443 struct lpfc_sli
*psli
= &phba
->sli
;
1446 spin_lock_irq(&phba
->hbalock
);
1447 iotag
= psli
->last_iotag
;
1448 if(++iotag
< psli
->iocbq_lookup_len
) {
1449 psli
->last_iotag
= iotag
;
1450 psli
->iocbq_lookup
[iotag
] = iocbq
;
1451 spin_unlock_irq(&phba
->hbalock
);
1452 iocbq
->iotag
= iotag
;
1454 } else if (psli
->iocbq_lookup_len
< (0xffff
1455 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1456 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1457 spin_unlock_irq(&phba
->hbalock
);
1458 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1461 spin_lock_irq(&phba
->hbalock
);
1462 old_arr
= psli
->iocbq_lookup
;
1463 if (new_len
<= psli
->iocbq_lookup_len
) {
1464 /* highly unprobable case */
1466 iotag
= psli
->last_iotag
;
1467 if(++iotag
< psli
->iocbq_lookup_len
) {
1468 psli
->last_iotag
= iotag
;
1469 psli
->iocbq_lookup
[iotag
] = iocbq
;
1470 spin_unlock_irq(&phba
->hbalock
);
1471 iocbq
->iotag
= iotag
;
1474 spin_unlock_irq(&phba
->hbalock
);
1477 if (psli
->iocbq_lookup
)
1478 memcpy(new_arr
, old_arr
,
1479 ((psli
->last_iotag
+ 1) *
1480 sizeof (struct lpfc_iocbq
*)));
1481 psli
->iocbq_lookup
= new_arr
;
1482 psli
->iocbq_lookup_len
= new_len
;
1483 psli
->last_iotag
= iotag
;
1484 psli
->iocbq_lookup
[iotag
] = iocbq
;
1485 spin_unlock_irq(&phba
->hbalock
);
1486 iocbq
->iotag
= iotag
;
1491 spin_unlock_irq(&phba
->hbalock
);
1493 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1494 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1501 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1502 * @phba: Pointer to HBA context object.
1503 * @pring: Pointer to driver SLI ring object.
1504 * @iocb: Pointer to iocb slot in the ring.
1505 * @nextiocb: Pointer to driver iocb object which need to be
1506 * posted to firmware.
1508 * This function is called with hbalock held to post a new iocb to
1509 * the firmware. This function copies the new iocb to ring iocb slot and
1510 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1511 * a completion call back for this iocb else the function will free the
1515 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1516 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1518 lockdep_assert_held(&phba
->hbalock
);
1522 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1525 if (pring
->ringno
== LPFC_ELS_RING
) {
1526 lpfc_debugfs_slow_ring_trc(phba
,
1527 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1528 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1529 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1530 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1534 * Issue iocb command to adapter
1536 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1538 pring
->stats
.iocb_cmd
++;
1541 * If there is no completion routine to call, we can release the
1542 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1543 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1545 if (nextiocb
->iocb_cmpl
)
1546 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1548 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1551 * Let the HBA know what IOCB slot will be the next one the
1552 * driver will put a command into.
1554 pring
->sli
.sli3
.cmdidx
= pring
->sli
.sli3
.next_cmdidx
;
1555 writel(pring
->sli
.sli3
.cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1559 * lpfc_sli_update_full_ring - Update the chip attention register
1560 * @phba: Pointer to HBA context object.
1561 * @pring: Pointer to driver SLI ring object.
1563 * The caller is not required to hold any lock for calling this function.
1564 * This function updates the chip attention bits for the ring to inform firmware
1565 * that there are pending work to be done for this ring and requests an
1566 * interrupt when there is space available in the ring. This function is
1567 * called when the driver is unable to post more iocbs to the ring due
1568 * to unavailability of space in the ring.
1571 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1573 int ringno
= pring
->ringno
;
1575 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1580 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1581 * The HBA will tell us when an IOCB entry is available.
1583 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1584 readl(phba
->CAregaddr
); /* flush */
1586 pring
->stats
.iocb_cmd_full
++;
1590 * lpfc_sli_update_ring - Update chip attention register
1591 * @phba: Pointer to HBA context object.
1592 * @pring: Pointer to driver SLI ring object.
1594 * This function updates the chip attention register bit for the
1595 * given ring to inform HBA that there is more work to be done
1596 * in this ring. The caller is not required to hold any lock.
1599 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1601 int ringno
= pring
->ringno
;
1604 * Tell the HBA that there is work to do in this ring.
1606 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1608 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1609 readl(phba
->CAregaddr
); /* flush */
1614 * lpfc_sli_resume_iocb - Process iocbs in the txq
1615 * @phba: Pointer to HBA context object.
1616 * @pring: Pointer to driver SLI ring object.
1618 * This function is called with hbalock held to post pending iocbs
1619 * in the txq to the firmware. This function is called when driver
1620 * detects space available in the ring.
1623 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1626 struct lpfc_iocbq
*nextiocb
;
1628 lockdep_assert_held(&phba
->hbalock
);
1632 * (a) there is anything on the txq to send
1634 * (c) link attention events can be processed (fcp ring only)
1635 * (d) IOCB processing is not blocked by the outstanding mbox command.
1638 if (lpfc_is_link_up(phba
) &&
1639 (!list_empty(&pring
->txq
)) &&
1640 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1641 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1643 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1644 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1645 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1648 lpfc_sli_update_ring(phba
, pring
);
1650 lpfc_sli_update_full_ring(phba
, pring
);
1657 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1658 * @phba: Pointer to HBA context object.
1659 * @hbqno: HBQ number.
1661 * This function is called with hbalock held to get the next
1662 * available slot for the given HBQ. If there is free slot
1663 * available for the HBQ it will return pointer to the next available
1664 * HBQ entry else it will return NULL.
1666 static struct lpfc_hbq_entry
*
1667 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1669 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1671 lockdep_assert_held(&phba
->hbalock
);
1673 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1674 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1675 hbqp
->next_hbqPutIdx
= 0;
1677 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1678 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1679 uint32_t getidx
= le32_to_cpu(raw_index
);
1681 hbqp
->local_hbqGetIdx
= getidx
;
1683 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1684 lpfc_printf_log(phba
, KERN_ERR
,
1685 LOG_SLI
| LOG_VPORT
,
1686 "1802 HBQ %d: local_hbqGetIdx "
1687 "%u is > than hbqp->entry_count %u\n",
1688 hbqno
, hbqp
->local_hbqGetIdx
,
1691 phba
->link_state
= LPFC_HBA_ERROR
;
1695 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1699 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1704 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1705 * @phba: Pointer to HBA context object.
1707 * This function is called with no lock held to free all the
1708 * hbq buffers while uninitializing the SLI interface. It also
1709 * frees the HBQ buffers returned by the firmware but not yet
1710 * processed by the upper layers.
1713 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1715 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1716 struct hbq_dmabuf
*hbq_buf
;
1717 unsigned long flags
;
1721 hbq_count
= lpfc_sli_hbq_count();
1722 /* Return all memory used by all HBQs */
1723 spin_lock_irqsave(&phba
->hbalock
, flags
);
1724 for (i
= 0; i
< hbq_count
; ++i
) {
1725 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1726 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1727 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1728 list_del(&hbq_buf
->dbuf
.list
);
1729 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1731 phba
->hbqs
[i
].buffer_count
= 0;
1733 /* Return all HBQ buffer that are in-fly */
1734 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1736 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1737 list_del(&hbq_buf
->dbuf
.list
);
1738 if (hbq_buf
->tag
== -1) {
1739 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1742 hbqno
= hbq_buf
->tag
>> 16;
1743 if (hbqno
>= LPFC_MAX_HBQS
)
1744 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1747 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1752 /* Mark the HBQs not in use */
1753 phba
->hbq_in_use
= 0;
1754 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1758 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1759 * @phba: Pointer to HBA context object.
1760 * @hbqno: HBQ number.
1761 * @hbq_buf: Pointer to HBQ buffer.
1763 * This function is called with the hbalock held to post a
1764 * hbq buffer to the firmware. If the function finds an empty
1765 * slot in the HBQ, it will post the buffer. The function will return
1766 * pointer to the hbq entry if it successfully post the buffer
1767 * else it will return NULL.
1770 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1771 struct hbq_dmabuf
*hbq_buf
)
1773 lockdep_assert_held(&phba
->hbalock
);
1774 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1778 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1779 * @phba: Pointer to HBA context object.
1780 * @hbqno: HBQ number.
1781 * @hbq_buf: Pointer to HBQ buffer.
1783 * This function is called with the hbalock held to post a hbq buffer to the
1784 * firmware. If the function finds an empty slot in the HBQ, it will post the
1785 * buffer and place it on the hbq_buffer_list. The function will return zero if
1786 * it successfully post the buffer else it will return an error.
1789 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1790 struct hbq_dmabuf
*hbq_buf
)
1792 struct lpfc_hbq_entry
*hbqe
;
1793 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1795 lockdep_assert_held(&phba
->hbalock
);
1796 /* Get next HBQ entry slot to use */
1797 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1799 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1801 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1802 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1803 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1804 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1805 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1806 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1808 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1809 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1811 readl(phba
->hbq_put
+ hbqno
);
1812 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1819 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1820 * @phba: Pointer to HBA context object.
1821 * @hbqno: HBQ number.
1822 * @hbq_buf: Pointer to HBQ buffer.
1824 * This function is called with the hbalock held to post an RQE to the SLI4
1825 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1826 * the hbq_buffer_list and return zero, otherwise it will return an error.
1829 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1830 struct hbq_dmabuf
*hbq_buf
)
1833 struct lpfc_rqe hrqe
;
1834 struct lpfc_rqe drqe
;
1836 lockdep_assert_held(&phba
->hbalock
);
1837 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1838 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1839 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1840 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1841 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1846 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1850 /* HBQ for ELS and CT traffic. */
1851 static struct lpfc_hbq_init lpfc_els_hbq
= {
1856 .ring_mask
= (1 << LPFC_ELS_RING
),
1862 /* HBQ for the extra ring if needed */
1863 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1868 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1875 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1881 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1882 * @phba: Pointer to HBA context object.
1883 * @hbqno: HBQ number.
1884 * @count: Number of HBQ buffers to be posted.
1886 * This function is called with no lock held to post more hbq buffers to the
1887 * given HBQ. The function returns the number of HBQ buffers successfully
1891 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1893 uint32_t i
, posted
= 0;
1894 unsigned long flags
;
1895 struct hbq_dmabuf
*hbq_buffer
;
1896 LIST_HEAD(hbq_buf_list
);
1897 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1900 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1901 lpfc_hbq_defs
[hbqno
]->entry_count
)
1902 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1903 phba
->hbqs
[hbqno
].buffer_count
;
1906 /* Allocate HBQ entries */
1907 for (i
= 0; i
< count
; i
++) {
1908 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1911 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1913 /* Check whether HBQ is still in use */
1914 spin_lock_irqsave(&phba
->hbalock
, flags
);
1915 if (!phba
->hbq_in_use
)
1917 while (!list_empty(&hbq_buf_list
)) {
1918 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1920 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1922 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1923 phba
->hbqs
[hbqno
].buffer_count
++;
1926 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1928 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1931 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1932 while (!list_empty(&hbq_buf_list
)) {
1933 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1935 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1941 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1942 * @phba: Pointer to HBA context object.
1945 * This function posts more buffers to the HBQ. This function
1946 * is called with no lock held. The function returns the number of HBQ entries
1947 * successfully allocated.
1950 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1952 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1955 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1956 lpfc_hbq_defs
[qno
]->add_count
);
1960 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1961 * @phba: Pointer to HBA context object.
1962 * @qno: HBQ queue number.
1964 * This function is called from SLI initialization code path with
1965 * no lock held to post initial HBQ buffers to firmware. The
1966 * function returns the number of HBQ entries successfully allocated.
1969 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1971 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1972 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1973 lpfc_hbq_defs
[qno
]->entry_count
);
1975 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1976 lpfc_hbq_defs
[qno
]->init_count
);
1980 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1981 * @phba: Pointer to HBA context object.
1982 * @hbqno: HBQ number.
1984 * This function removes the first hbq buffer on an hbq list and returns a
1985 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1987 static struct hbq_dmabuf
*
1988 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1990 struct lpfc_dmabuf
*d_buf
;
1992 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1995 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1999 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
2000 * @phba: Pointer to HBA context object.
2001 * @tag: Tag of the hbq buffer.
2003 * This function searches for the hbq buffer associated with the given tag in
2004 * the hbq buffer list. If it finds the hbq buffer, it returns the hbq_buffer
2005 * otherwise it returns NULL.
2007 static struct hbq_dmabuf
*
2008 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
2010 struct lpfc_dmabuf
*d_buf
;
2011 struct hbq_dmabuf
*hbq_buf
;
2015 if (hbqno
>= LPFC_MAX_HBQS
)
2018 spin_lock_irq(&phba
->hbalock
);
2019 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
2020 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
2021 if (hbq_buf
->tag
== tag
) {
2022 spin_unlock_irq(&phba
->hbalock
);
2026 spin_unlock_irq(&phba
->hbalock
);
2027 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
2028 "1803 Bad hbq tag. Data: x%x x%x\n",
2029 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
2034 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
2035 * @phba: Pointer to HBA context object.
2036 * @hbq_buffer: Pointer to HBQ buffer.
2038 * This function is called with hbalock. This function gives back
2039 * the hbq buffer to firmware. If the HBQ does not have space to
2040 * post the buffer, it will free the buffer.
2043 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
2048 hbqno
= hbq_buffer
->tag
>> 16;
2049 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
2050 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
2055 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
2056 * @mbxCommand: mailbox command code.
2058 * This function is called by the mailbox event handler function to verify
2059 * that the completed mailbox command is a legitimate mailbox command. If the
2060 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
2061 * and the mailbox event handler will take the HBA offline.
2064 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
2068 switch (mbxCommand
) {
2072 case MBX_WRITE_VPARMS
:
2073 case MBX_RUN_BIU_DIAG
:
2076 case MBX_CONFIG_LINK
:
2077 case MBX_CONFIG_RING
:
2078 case MBX_RESET_RING
:
2079 case MBX_READ_CONFIG
:
2080 case MBX_READ_RCONFIG
:
2081 case MBX_READ_SPARM
:
2082 case MBX_READ_STATUS
:
2086 case MBX_READ_LNK_STAT
:
2088 case MBX_UNREG_LOGIN
:
2090 case MBX_DUMP_MEMORY
:
2091 case MBX_DUMP_CONTEXT
:
2094 case MBX_UPDATE_CFG
:
2096 case MBX_DEL_LD_ENTRY
:
2097 case MBX_RUN_PROGRAM
:
2099 case MBX_SET_VARIABLE
:
2100 case MBX_UNREG_D_ID
:
2101 case MBX_KILL_BOARD
:
2102 case MBX_CONFIG_FARP
:
2105 case MBX_RUN_BIU_DIAG64
:
2106 case MBX_CONFIG_PORT
:
2107 case MBX_READ_SPARM64
:
2108 case MBX_READ_RPI64
:
2109 case MBX_REG_LOGIN64
:
2110 case MBX_READ_TOPOLOGY
:
2113 case MBX_LOAD_EXP_ROM
:
2114 case MBX_ASYNCEVT_ENABLE
:
2118 case MBX_PORT_CAPABILITIES
:
2119 case MBX_PORT_IOV_CONTROL
:
2120 case MBX_SLI4_CONFIG
:
2121 case MBX_SLI4_REQ_FTRS
:
2123 case MBX_UNREG_FCFI
:
2128 case MBX_RESUME_RPI
:
2129 case MBX_READ_EVENT_LOG_STATUS
:
2130 case MBX_READ_EVENT_LOG
:
2131 case MBX_SECURITY_MGMT
:
2133 case MBX_ACCESS_VDATA
:
2144 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2145 * @phba: Pointer to HBA context object.
2146 * @pmboxq: Pointer to mailbox command.
2148 * This is completion handler function for mailbox commands issued from
2149 * lpfc_sli_issue_mbox_wait function. This function is called by the
2150 * mailbox event handler function with no lock held. This function
2151 * will wake up thread waiting on the wait queue pointed by context1
2155 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
2157 wait_queue_head_t
*pdone_q
;
2158 unsigned long drvr_flag
;
2161 * If pdone_q is empty, the driver thread gave up waiting and
2162 * continued running.
2164 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
2165 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
2166 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
2168 wake_up_interruptible(pdone_q
);
2169 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
2175 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2176 * @phba: Pointer to HBA context object.
2177 * @pmb: Pointer to mailbox object.
2179 * This function is the default mailbox completion handler. It
2180 * frees the memory resources associated with the completed mailbox
2181 * command. If the completed command is a REG_LOGIN mailbox command,
2182 * this function will issue a UREG_LOGIN to re-claim the RPI.
2185 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2187 struct lpfc_vport
*vport
= pmb
->vport
;
2188 struct lpfc_dmabuf
*mp
;
2189 struct lpfc_nodelist
*ndlp
;
2190 struct Scsi_Host
*shost
;
2194 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2197 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2202 * If a REG_LOGIN succeeded after node is destroyed or node
2203 * is in re-discovery driver need to cleanup the RPI.
2205 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2206 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
2207 !pmb
->u
.mb
.mbxStatus
) {
2208 rpi
= pmb
->u
.mb
.un
.varWords
[0];
2209 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
;
2210 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
2212 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2213 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2214 if (rc
!= MBX_NOT_FINISHED
)
2218 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
2219 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2220 !pmb
->u
.mb
.mbxStatus
) {
2221 shost
= lpfc_shost_from_vport(vport
);
2222 spin_lock_irq(shost
->host_lock
);
2223 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2224 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2225 spin_unlock_irq(shost
->host_lock
);
2228 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
2229 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
2231 pmb
->context2
= NULL
;
2234 /* Check security permission status on INIT_LINK mailbox command */
2235 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
2236 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
2237 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2238 "2860 SLI authentication is required "
2239 "for INIT_LINK but has not done yet\n");
2241 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
2242 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
2244 mempool_free(pmb
, phba
->mbox_mem_pool
);
2247 * lpfc_sli4_unreg_rpi_cmpl_clr - mailbox completion handler
2248 * @phba: Pointer to HBA context object.
2249 * @pmb: Pointer to mailbox object.
2251 * This function is the unreg rpi mailbox completion handler. It
2252 * frees the memory resources associated with the completed mailbox
2253 * command. An additional refrenece is put on the ndlp to prevent
2254 * lpfc_nlp_release from freeing the rpi bit in the bitmask before
2255 * the unreg mailbox command completes, this routine puts the
2260 lpfc_sli4_unreg_rpi_cmpl_clr(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2262 struct lpfc_vport
*vport
= pmb
->vport
;
2263 struct lpfc_nodelist
*ndlp
;
2265 ndlp
= pmb
->context1
;
2266 if (pmb
->u
.mb
.mbxCommand
== MBX_UNREG_LOGIN
) {
2267 if (phba
->sli_rev
== LPFC_SLI_REV4
&&
2268 (bf_get(lpfc_sli_intf_if_type
,
2269 &phba
->sli4_hba
.sli_intf
) ==
2270 LPFC_SLI_INTF_IF_TYPE_2
)) {
2272 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
2273 "0010 UNREG_LOGIN vpi:%x "
2274 "rpi:%x DID:%x map:%x %p\n",
2275 vport
->vpi
, ndlp
->nlp_rpi
,
2277 ndlp
->nlp_usg_map
, ndlp
);
2278 ndlp
->nlp_flag
&= ~NLP_LOGO_ACC
;
2284 mempool_free(pmb
, phba
->mbox_mem_pool
);
2288 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2289 * @phba: Pointer to HBA context object.
2291 * This function is called with no lock held. This function processes all
2292 * the completed mailbox commands and gives it to upper layers. The interrupt
2293 * service routine processes mailbox completion interrupt and adds completed
2294 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2295 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2296 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2297 * function returns the mailbox commands to the upper layer by calling the
2298 * completion handler function of each mailbox.
2301 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
2308 phba
->sli
.slistat
.mbox_event
++;
2310 /* Get all completed mailboxe buffers into the cmplq */
2311 spin_lock_irq(&phba
->hbalock
);
2312 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
2313 spin_unlock_irq(&phba
->hbalock
);
2315 /* Get a Mailbox buffer to setup mailbox commands for callback */
2317 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
2323 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
2325 lpfc_debugfs_disc_trc(pmb
->vport
,
2326 LPFC_DISC_TRC_MBOX_VPORT
,
2327 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2328 (uint32_t)pmbox
->mbxCommand
,
2329 pmbox
->un
.varWords
[0],
2330 pmbox
->un
.varWords
[1]);
2333 lpfc_debugfs_disc_trc(phba
->pport
,
2335 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2336 (uint32_t)pmbox
->mbxCommand
,
2337 pmbox
->un
.varWords
[0],
2338 pmbox
->un
.varWords
[1]);
2343 * It is a fatal error if unknown mbox command completion.
2345 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
2347 /* Unknown mailbox command compl */
2348 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2349 "(%d):0323 Unknown Mailbox command "
2350 "x%x (x%x/x%x) Cmpl\n",
2351 pmb
->vport
? pmb
->vport
->vpi
: 0,
2353 lpfc_sli_config_mbox_subsys_get(phba
,
2355 lpfc_sli_config_mbox_opcode_get(phba
,
2357 phba
->link_state
= LPFC_HBA_ERROR
;
2358 phba
->work_hs
= HS_FFER3
;
2359 lpfc_handle_eratt(phba
);
2363 if (pmbox
->mbxStatus
) {
2364 phba
->sli
.slistat
.mbox_stat_err
++;
2365 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
2366 /* Mbox cmd cmpl error - RETRYing */
2367 lpfc_printf_log(phba
, KERN_INFO
,
2369 "(%d):0305 Mbox cmd cmpl "
2370 "error - RETRYing Data: x%x "
2371 "(x%x/x%x) x%x x%x x%x\n",
2372 pmb
->vport
? pmb
->vport
->vpi
: 0,
2374 lpfc_sli_config_mbox_subsys_get(phba
,
2376 lpfc_sli_config_mbox_opcode_get(phba
,
2379 pmbox
->un
.varWords
[0],
2380 pmb
->vport
->port_state
);
2381 pmbox
->mbxStatus
= 0;
2382 pmbox
->mbxOwner
= OWN_HOST
;
2383 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2384 if (rc
!= MBX_NOT_FINISHED
)
2389 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2390 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
2391 "(%d):0307 Mailbox cmd x%x (x%x/x%x) Cmpl x%p "
2392 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
2394 pmb
->vport
? pmb
->vport
->vpi
: 0,
2396 lpfc_sli_config_mbox_subsys_get(phba
, pmb
),
2397 lpfc_sli_config_mbox_opcode_get(phba
, pmb
),
2399 *((uint32_t *) pmbox
),
2400 pmbox
->un
.varWords
[0],
2401 pmbox
->un
.varWords
[1],
2402 pmbox
->un
.varWords
[2],
2403 pmbox
->un
.varWords
[3],
2404 pmbox
->un
.varWords
[4],
2405 pmbox
->un
.varWords
[5],
2406 pmbox
->un
.varWords
[6],
2407 pmbox
->un
.varWords
[7],
2408 pmbox
->un
.varWords
[8],
2409 pmbox
->un
.varWords
[9],
2410 pmbox
->un
.varWords
[10]);
2413 pmb
->mbox_cmpl(phba
,pmb
);
2419 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2420 * @phba: Pointer to HBA context object.
2421 * @pring: Pointer to driver SLI ring object.
2424 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2425 * is set in the tag the buffer is posted for a particular exchange,
2426 * the function will return the buffer without replacing the buffer.
2427 * If the buffer is for unsolicited ELS or CT traffic, this function
2428 * returns the buffer and also posts another buffer to the firmware.
2430 static struct lpfc_dmabuf
*
2431 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
2432 struct lpfc_sli_ring
*pring
,
2435 struct hbq_dmabuf
*hbq_entry
;
2437 if (tag
& QUE_BUFTAG_BIT
)
2438 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
2439 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
2442 return &hbq_entry
->dbuf
;
2446 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2447 * @phba: Pointer to HBA context object.
2448 * @pring: Pointer to driver SLI ring object.
2449 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2450 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2451 * @fch_type: the type for the first frame of the sequence.
2453 * This function is called with no lock held. This function uses the r_ctl and
2454 * type of the received sequence to find the correct callback function to call
2455 * to process the sequence.
2458 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2459 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
2464 /* unSolicited Responses */
2465 if (pring
->prt
[0].profile
) {
2466 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
2467 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
2471 /* We must search, based on rctl / type
2472 for the right routine */
2473 for (i
= 0; i
< pring
->num_mask
; i
++) {
2474 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
2475 (pring
->prt
[i
].type
== fch_type
)) {
2476 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2477 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2478 (phba
, pring
, saveq
);
2486 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2487 * @phba: Pointer to HBA context object.
2488 * @pring: Pointer to driver SLI ring object.
2489 * @saveq: Pointer to the unsolicited iocb.
2491 * This function is called with no lock held by the ring event handler
2492 * when there is an unsolicited iocb posted to the response ring by the
2493 * firmware. This function gets the buffer associated with the iocbs
2494 * and calls the event handler for the ring. This function handles both
2495 * qring buffers and hbq buffers.
2496 * When the function returns 1 the caller can free the iocb object otherwise
2497 * upper layer functions will free the iocb objects.
2500 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2501 struct lpfc_iocbq
*saveq
)
2505 uint32_t Rctl
, Type
;
2506 struct lpfc_iocbq
*iocbq
;
2507 struct lpfc_dmabuf
*dmzbuf
;
2509 irsp
= &(saveq
->iocb
);
2511 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2512 if (pring
->lpfc_sli_rcv_async_status
)
2513 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2515 lpfc_printf_log(phba
,
2518 "0316 Ring %d handler: unexpected "
2519 "ASYNC_STATUS iocb received evt_code "
2522 irsp
->un
.asyncstat
.evt_code
);
2526 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2527 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2528 if (irsp
->ulpBdeCount
> 0) {
2529 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2530 irsp
->un
.ulpWord
[3]);
2531 lpfc_in_buf_free(phba
, dmzbuf
);
2534 if (irsp
->ulpBdeCount
> 1) {
2535 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2536 irsp
->unsli3
.sli3Words
[3]);
2537 lpfc_in_buf_free(phba
, dmzbuf
);
2540 if (irsp
->ulpBdeCount
> 2) {
2541 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2542 irsp
->unsli3
.sli3Words
[7]);
2543 lpfc_in_buf_free(phba
, dmzbuf
);
2549 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2550 if (irsp
->ulpBdeCount
!= 0) {
2551 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2552 irsp
->un
.ulpWord
[3]);
2553 if (!saveq
->context2
)
2554 lpfc_printf_log(phba
,
2557 "0341 Ring %d Cannot find buffer for "
2558 "an unsolicited iocb. tag 0x%x\n",
2560 irsp
->un
.ulpWord
[3]);
2562 if (irsp
->ulpBdeCount
== 2) {
2563 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2564 irsp
->unsli3
.sli3Words
[7]);
2565 if (!saveq
->context3
)
2566 lpfc_printf_log(phba
,
2569 "0342 Ring %d Cannot find buffer for an"
2570 " unsolicited iocb. tag 0x%x\n",
2572 irsp
->unsli3
.sli3Words
[7]);
2574 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2575 irsp
= &(iocbq
->iocb
);
2576 if (irsp
->ulpBdeCount
!= 0) {
2577 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2578 irsp
->un
.ulpWord
[3]);
2579 if (!iocbq
->context2
)
2580 lpfc_printf_log(phba
,
2583 "0343 Ring %d Cannot find "
2584 "buffer for an unsolicited iocb"
2585 ". tag 0x%x\n", pring
->ringno
,
2586 irsp
->un
.ulpWord
[3]);
2588 if (irsp
->ulpBdeCount
== 2) {
2589 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2590 irsp
->unsli3
.sli3Words
[7]);
2591 if (!iocbq
->context3
)
2592 lpfc_printf_log(phba
,
2595 "0344 Ring %d Cannot find "
2596 "buffer for an unsolicited "
2599 irsp
->unsli3
.sli3Words
[7]);
2603 if (irsp
->ulpBdeCount
!= 0 &&
2604 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2605 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2608 /* search continue save q for same XRI */
2609 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2610 if (iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
==
2611 saveq
->iocb
.unsli3
.rcvsli3
.ox_id
) {
2612 list_add_tail(&saveq
->list
, &iocbq
->list
);
2618 list_add_tail(&saveq
->clist
,
2619 &pring
->iocb_continue_saveq
);
2620 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2621 list_del_init(&iocbq
->clist
);
2623 irsp
= &(saveq
->iocb
);
2627 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2628 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2629 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2630 Rctl
= FC_RCTL_ELS_REQ
;
2633 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2634 Rctl
= w5p
->hcsw
.Rctl
;
2635 Type
= w5p
->hcsw
.Type
;
2637 /* Firmware Workaround */
2638 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2639 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2640 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2641 Rctl
= FC_RCTL_ELS_REQ
;
2643 w5p
->hcsw
.Rctl
= Rctl
;
2644 w5p
->hcsw
.Type
= Type
;
2648 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2649 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2650 "0313 Ring %d handler: unexpected Rctl x%x "
2651 "Type x%x received\n",
2652 pring
->ringno
, Rctl
, Type
);
2658 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2659 * @phba: Pointer to HBA context object.
2660 * @pring: Pointer to driver SLI ring object.
2661 * @prspiocb: Pointer to response iocb object.
2663 * This function looks up the iocb_lookup table to get the command iocb
2664 * corresponding to the given response iocb using the iotag of the
2665 * response iocb. This function is called with the hbalock held.
2666 * This function returns the command iocb object if it finds the command
2667 * iocb else returns NULL.
2669 static struct lpfc_iocbq
*
2670 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2671 struct lpfc_sli_ring
*pring
,
2672 struct lpfc_iocbq
*prspiocb
)
2674 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2676 lockdep_assert_held(&phba
->hbalock
);
2678 iotag
= prspiocb
->iocb
.ulpIoTag
;
2680 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2681 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2682 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2683 /* remove from txcmpl queue list */
2684 list_del_init(&cmd_iocb
->list
);
2685 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2690 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2691 "0317 iotag x%x is out of "
2692 "range: max iotag x%x wd0 x%x\n",
2693 iotag
, phba
->sli
.last_iotag
,
2694 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2699 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2700 * @phba: Pointer to HBA context object.
2701 * @pring: Pointer to driver SLI ring object.
2704 * This function looks up the iocb_lookup table to get the command iocb
2705 * corresponding to the given iotag. This function is called with the
2707 * This function returns the command iocb object if it finds the command
2708 * iocb else returns NULL.
2710 static struct lpfc_iocbq
*
2711 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2712 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2714 struct lpfc_iocbq
*cmd_iocb
;
2716 lockdep_assert_held(&phba
->hbalock
);
2717 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2718 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2719 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_TXCMPLQ
) {
2720 /* remove from txcmpl queue list */
2721 list_del_init(&cmd_iocb
->list
);
2722 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_TXCMPLQ
;
2727 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2728 "0372 iotag x%x is out of range: max iotag (x%x)\n",
2729 iotag
, phba
->sli
.last_iotag
);
2734 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2735 * @phba: Pointer to HBA context object.
2736 * @pring: Pointer to driver SLI ring object.
2737 * @saveq: Pointer to the response iocb to be processed.
2739 * This function is called by the ring event handler for non-fcp
2740 * rings when there is a new response iocb in the response ring.
2741 * The caller is not required to hold any locks. This function
2742 * gets the command iocb associated with the response iocb and
2743 * calls the completion handler for the command iocb. If there
2744 * is no completion handler, the function will free the resources
2745 * associated with command iocb. If the response iocb is for
2746 * an already aborted command iocb, the status of the completion
2747 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2748 * This function always returns 1.
2751 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2752 struct lpfc_iocbq
*saveq
)
2754 struct lpfc_iocbq
*cmdiocbp
;
2756 unsigned long iflag
;
2758 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2759 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2760 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2761 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2764 if (cmdiocbp
->iocb_cmpl
) {
2766 * If an ELS command failed send an event to mgmt
2769 if (saveq
->iocb
.ulpStatus
&&
2770 (pring
->ringno
== LPFC_ELS_RING
) &&
2771 (cmdiocbp
->iocb
.ulpCommand
==
2772 CMD_ELS_REQUEST64_CR
))
2773 lpfc_send_els_failure_event(phba
,
2777 * Post all ELS completions to the worker thread.
2778 * All other are passed to the completion callback.
2780 if (pring
->ringno
== LPFC_ELS_RING
) {
2781 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2782 (cmdiocbp
->iocb_flag
&
2783 LPFC_DRIVER_ABORTED
)) {
2784 spin_lock_irqsave(&phba
->hbalock
,
2786 cmdiocbp
->iocb_flag
&=
2787 ~LPFC_DRIVER_ABORTED
;
2788 spin_unlock_irqrestore(&phba
->hbalock
,
2790 saveq
->iocb
.ulpStatus
=
2791 IOSTAT_LOCAL_REJECT
;
2792 saveq
->iocb
.un
.ulpWord
[4] =
2795 /* Firmware could still be in progress
2796 * of DMAing payload, so don't free data
2797 * buffer till after a hbeat.
2799 spin_lock_irqsave(&phba
->hbalock
,
2801 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2802 spin_unlock_irqrestore(&phba
->hbalock
,
2805 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2806 if (saveq
->iocb_flag
&
2807 LPFC_EXCHANGE_BUSY
) {
2808 /* Set cmdiocb flag for the
2809 * exchange busy so sgl (xri)
2810 * will not be released until
2811 * the abort xri is received
2815 &phba
->hbalock
, iflag
);
2816 cmdiocbp
->iocb_flag
|=
2818 spin_unlock_irqrestore(
2819 &phba
->hbalock
, iflag
);
2821 if (cmdiocbp
->iocb_flag
&
2822 LPFC_DRIVER_ABORTED
) {
2824 * Clear LPFC_DRIVER_ABORTED
2825 * bit in case it was driver
2829 &phba
->hbalock
, iflag
);
2830 cmdiocbp
->iocb_flag
&=
2831 ~LPFC_DRIVER_ABORTED
;
2832 spin_unlock_irqrestore(
2833 &phba
->hbalock
, iflag
);
2834 cmdiocbp
->iocb
.ulpStatus
=
2835 IOSTAT_LOCAL_REJECT
;
2836 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2837 IOERR_ABORT_REQUESTED
;
2839 * For SLI4, irsiocb contains
2840 * NO_XRI in sli_xritag, it
2841 * shall not affect releasing
2842 * sgl (xri) process.
2844 saveq
->iocb
.ulpStatus
=
2845 IOSTAT_LOCAL_REJECT
;
2846 saveq
->iocb
.un
.ulpWord
[4] =
2849 &phba
->hbalock
, iflag
);
2851 LPFC_DELAY_MEM_FREE
;
2852 spin_unlock_irqrestore(
2853 &phba
->hbalock
, iflag
);
2857 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2859 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2862 * Unknown initiating command based on the response iotag.
2863 * This could be the case on the ELS ring because of
2866 if (pring
->ringno
!= LPFC_ELS_RING
) {
2868 * Ring <ringno> handler: unexpected completion IoTag
2871 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2872 "0322 Ring %d handler: "
2873 "unexpected completion IoTag x%x "
2874 "Data: x%x x%x x%x x%x\n",
2876 saveq
->iocb
.ulpIoTag
,
2877 saveq
->iocb
.ulpStatus
,
2878 saveq
->iocb
.un
.ulpWord
[4],
2879 saveq
->iocb
.ulpCommand
,
2880 saveq
->iocb
.ulpContext
);
2888 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2889 * @phba: Pointer to HBA context object.
2890 * @pring: Pointer to driver SLI ring object.
2892 * This function is called from the iocb ring event handlers when
2893 * put pointer is ahead of the get pointer for a ring. This function signal
2894 * an error attention condition to the worker thread and the worker
2895 * thread will transition the HBA to offline state.
2898 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2900 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2902 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2903 * rsp ring <portRspMax>
2905 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2906 "0312 Ring %d handler: portRspPut %d "
2907 "is bigger than rsp ring %d\n",
2908 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2909 pring
->sli
.sli3
.numRiocb
);
2911 phba
->link_state
= LPFC_HBA_ERROR
;
2914 * All error attention handlers are posted to
2917 phba
->work_ha
|= HA_ERATT
;
2918 phba
->work_hs
= HS_FFER3
;
2920 lpfc_worker_wake_up(phba
);
2926 * lpfc_poll_eratt - Error attention polling timer timeout handler
2927 * @ptr: Pointer to address of HBA context object.
2929 * This function is invoked by the Error Attention polling timer when the
2930 * timer times out. It will check the SLI Error Attention register for
2931 * possible attention events. If so, it will post an Error Attention event
2932 * and wake up worker thread to process it. Otherwise, it will set up the
2933 * Error Attention polling timer for the next poll.
2935 void lpfc_poll_eratt(unsigned long ptr
)
2937 struct lpfc_hba
*phba
;
2939 uint64_t sli_intr
, cnt
;
2941 phba
= (struct lpfc_hba
*)ptr
;
2943 /* Here we will also keep track of interrupts per sec of the hba */
2944 sli_intr
= phba
->sli
.slistat
.sli_intr
;
2946 if (phba
->sli
.slistat
.sli_prev_intr
> sli_intr
)
2947 cnt
= (((uint64_t)(-1) - phba
->sli
.slistat
.sli_prev_intr
) +
2950 cnt
= (sli_intr
- phba
->sli
.slistat
.sli_prev_intr
);
2952 /* 64-bit integer division not supported on 32-bit x86 - use do_div */
2953 do_div(cnt
, phba
->eratt_poll_interval
);
2954 phba
->sli
.slistat
.sli_ips
= cnt
;
2956 phba
->sli
.slistat
.sli_prev_intr
= sli_intr
;
2958 /* Check chip HA register for error event */
2959 eratt
= lpfc_sli_check_eratt(phba
);
2962 /* Tell the worker thread there is work to do */
2963 lpfc_worker_wake_up(phba
);
2965 /* Restart the timer for next eratt poll */
2966 mod_timer(&phba
->eratt_poll
,
2968 msecs_to_jiffies(1000 * phba
->eratt_poll_interval
));
2974 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2975 * @phba: Pointer to HBA context object.
2976 * @pring: Pointer to driver SLI ring object.
2977 * @mask: Host attention register mask for this ring.
2979 * This function is called from the interrupt context when there is a ring
2980 * event for the fcp ring. The caller does not hold any lock.
2981 * The function processes each response iocb in the response ring until it
2982 * finds an iocb with LE bit set and chains all the iocbs up to the iocb with
2983 * LE bit set. The function will call the completion handler of the command iocb
2984 * if the response iocb indicates a completion for a command iocb or it is
2985 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2986 * function if this is an unsolicited iocb.
2987 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2988 * to check it explicitly.
2991 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2992 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2994 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2995 IOCB_t
*irsp
= NULL
;
2996 IOCB_t
*entry
= NULL
;
2997 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2998 struct lpfc_iocbq rspiocbq
;
3000 uint32_t portRspPut
, portRspMax
;
3002 lpfc_iocb_type type
;
3003 unsigned long iflag
;
3004 uint32_t rsp_cmpl
= 0;
3006 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3007 pring
->stats
.iocb_event
++;
3010 * The next available response entry should never exceed the maximum
3011 * entries. If it does, treat it as an adapter hardware error.
3013 portRspMax
= pring
->sli
.sli3
.numRiocb
;
3014 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3015 if (unlikely(portRspPut
>= portRspMax
)) {
3016 lpfc_sli_rsp_pointers_error(phba
, pring
);
3017 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3020 if (phba
->fcp_ring_in_use
) {
3021 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3024 phba
->fcp_ring_in_use
= 1;
3027 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
3029 * Fetch an entry off the ring and copy it into a local data
3030 * structure. The copy involves a byte-swap since the
3031 * network byte order and pci byte orders are different.
3033 entry
= lpfc_resp_iocb(phba
, pring
);
3034 phba
->last_completion_time
= jiffies
;
3036 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
3037 pring
->sli
.sli3
.rspidx
= 0;
3039 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
3040 (uint32_t *) &rspiocbq
.iocb
,
3041 phba
->iocb_rsp_size
);
3042 INIT_LIST_HEAD(&(rspiocbq
.list
));
3043 irsp
= &rspiocbq
.iocb
;
3045 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
3046 pring
->stats
.iocb_rsp
++;
3049 if (unlikely(irsp
->ulpStatus
)) {
3051 * If resource errors reported from HBA, reduce
3052 * queuedepths of the SCSI device.
3054 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3055 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
3056 IOERR_NO_RESOURCES
)) {
3057 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3058 phba
->lpfc_rampdown_queue_depth(phba
);
3059 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3062 /* Rsp ring <ringno> error: IOCB */
3063 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3064 "0336 Rsp Ring %d error: IOCB Data: "
3065 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
3067 irsp
->un
.ulpWord
[0],
3068 irsp
->un
.ulpWord
[1],
3069 irsp
->un
.ulpWord
[2],
3070 irsp
->un
.ulpWord
[3],
3071 irsp
->un
.ulpWord
[4],
3072 irsp
->un
.ulpWord
[5],
3073 *(uint32_t *)&irsp
->un1
,
3074 *((uint32_t *)&irsp
->un1
+ 1));
3078 case LPFC_ABORT_IOCB
:
3081 * Idle exchange closed via ABTS from port. No iocb
3082 * resources need to be recovered.
3084 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
3085 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3086 "0333 IOCB cmd 0x%x"
3087 " processed. Skipping"
3093 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
3095 if (unlikely(!cmdiocbq
))
3097 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
3098 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
3099 if (cmdiocbq
->iocb_cmpl
) {
3100 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3101 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
3103 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3106 case LPFC_UNSOL_IOCB
:
3107 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3108 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
3109 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3112 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3113 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3114 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3115 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
3117 dev_warn(&((phba
->pcidev
)->dev
),
3119 phba
->brd_no
, adaptermsg
);
3121 /* Unknown IOCB command */
3122 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3123 "0334 Unknown IOCB command "
3124 "Data: x%x, x%x x%x x%x x%x\n",
3125 type
, irsp
->ulpCommand
,
3134 * The response IOCB has been processed. Update the ring
3135 * pointer in SLIM. If the port response put pointer has not
3136 * been updated, sync the pgp->rspPutInx and fetch the new port
3137 * response put pointer.
3139 writel(pring
->sli
.sli3
.rspidx
,
3140 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3142 if (pring
->sli
.sli3
.rspidx
== portRspPut
)
3143 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3146 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
3147 pring
->stats
.iocb_rsp_full
++;
3148 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3149 writel(status
, phba
->CAregaddr
);
3150 readl(phba
->CAregaddr
);
3152 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3153 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3154 pring
->stats
.iocb_cmd_empty
++;
3156 /* Force update of the local copy of cmdGetInx */
3157 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3158 lpfc_sli_resume_iocb(phba
, pring
);
3160 if ((pring
->lpfc_sli_cmd_available
))
3161 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3165 phba
->fcp_ring_in_use
= 0;
3166 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3171 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3172 * @phba: Pointer to HBA context object.
3173 * @pring: Pointer to driver SLI ring object.
3174 * @rspiocbp: Pointer to driver response IOCB object.
3176 * This function is called from the worker thread when there is a slow-path
3177 * response IOCB to process. This function chains all the response iocbs until
3178 * seeing the iocb with the LE bit set. The function will call
3179 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3180 * completion of a command iocb. The function will call the
3181 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3182 * The function frees the resources or calls the completion handler if this
3183 * iocb is an abort completion. The function returns NULL when the response
3184 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3185 * this function shall chain the iocb on to the iocb_continueq and return the
3186 * response iocb passed in.
3188 static struct lpfc_iocbq
*
3189 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
3190 struct lpfc_iocbq
*rspiocbp
)
3192 struct lpfc_iocbq
*saveq
;
3193 struct lpfc_iocbq
*cmdiocbp
;
3194 struct lpfc_iocbq
*next_iocb
;
3195 IOCB_t
*irsp
= NULL
;
3196 uint32_t free_saveq
;
3197 uint8_t iocb_cmd_type
;
3198 lpfc_iocb_type type
;
3199 unsigned long iflag
;
3202 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3203 /* First add the response iocb to the countinueq list */
3204 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
3205 pring
->iocb_continueq_cnt
++;
3207 /* Now, determine whether the list is completed for processing */
3208 irsp
= &rspiocbp
->iocb
;
3211 * By default, the driver expects to free all resources
3212 * associated with this iocb completion.
3215 saveq
= list_get_first(&pring
->iocb_continueq
,
3216 struct lpfc_iocbq
, list
);
3217 irsp
= &(saveq
->iocb
);
3218 list_del_init(&pring
->iocb_continueq
);
3219 pring
->iocb_continueq_cnt
= 0;
3221 pring
->stats
.iocb_rsp
++;
3224 * If resource errors reported from HBA, reduce
3225 * queuedepths of the SCSI device.
3227 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3228 ((irsp
->un
.ulpWord
[4] & IOERR_PARAM_MASK
) ==
3229 IOERR_NO_RESOURCES
)) {
3230 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3231 phba
->lpfc_rampdown_queue_depth(phba
);
3232 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3235 if (irsp
->ulpStatus
) {
3236 /* Rsp ring <ringno> error: IOCB */
3237 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3238 "0328 Rsp Ring %d error: "
3243 "x%x x%x x%x x%x\n",
3245 irsp
->un
.ulpWord
[0],
3246 irsp
->un
.ulpWord
[1],
3247 irsp
->un
.ulpWord
[2],
3248 irsp
->un
.ulpWord
[3],
3249 irsp
->un
.ulpWord
[4],
3250 irsp
->un
.ulpWord
[5],
3251 *(((uint32_t *) irsp
) + 6),
3252 *(((uint32_t *) irsp
) + 7),
3253 *(((uint32_t *) irsp
) + 8),
3254 *(((uint32_t *) irsp
) + 9),
3255 *(((uint32_t *) irsp
) + 10),
3256 *(((uint32_t *) irsp
) + 11),
3257 *(((uint32_t *) irsp
) + 12),
3258 *(((uint32_t *) irsp
) + 13),
3259 *(((uint32_t *) irsp
) + 14),
3260 *(((uint32_t *) irsp
) + 15));
3264 * Fetch the IOCB command type and call the correct completion
3265 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3266 * get freed back to the lpfc_iocb_list by the discovery
3269 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
3270 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
3273 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3274 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
3275 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3278 case LPFC_UNSOL_IOCB
:
3279 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3280 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
3281 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3286 case LPFC_ABORT_IOCB
:
3288 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
3289 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
3292 /* Call the specified completion routine */
3293 if (cmdiocbp
->iocb_cmpl
) {
3294 spin_unlock_irqrestore(&phba
->hbalock
,
3296 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
3298 spin_lock_irqsave(&phba
->hbalock
,
3301 __lpfc_sli_release_iocbq(phba
,
3306 case LPFC_UNKNOWN_IOCB
:
3307 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3308 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3309 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3310 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
3312 dev_warn(&((phba
->pcidev
)->dev
),
3314 phba
->brd_no
, adaptermsg
);
3316 /* Unknown IOCB command */
3317 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3318 "0335 Unknown IOCB "
3319 "command Data: x%x "
3330 list_for_each_entry_safe(rspiocbp
, next_iocb
,
3331 &saveq
->list
, list
) {
3332 list_del_init(&rspiocbp
->list
);
3333 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
3335 __lpfc_sli_release_iocbq(phba
, saveq
);
3339 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3344 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3345 * @phba: Pointer to HBA context object.
3346 * @pring: Pointer to driver SLI ring object.
3347 * @mask: Host attention register mask for this ring.
3349 * This routine wraps the actual slow_ring event process routine from the
3350 * API jump table function pointer from the lpfc_hba struct.
3353 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
3354 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3356 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
3360 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3361 * @phba: Pointer to HBA context object.
3362 * @pring: Pointer to driver SLI ring object.
3363 * @mask: Host attention register mask for this ring.
3365 * This function is called from the worker thread when there is a ring event
3366 * for non-fcp rings. The caller does not hold any lock. The function will
3367 * remove each response iocb in the response ring and calls the handle
3368 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3371 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
3372 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3374 struct lpfc_pgp
*pgp
;
3376 IOCB_t
*irsp
= NULL
;
3377 struct lpfc_iocbq
*rspiocbp
= NULL
;
3378 uint32_t portRspPut
, portRspMax
;
3379 unsigned long iflag
;
3382 pgp
= &phba
->port_gp
[pring
->ringno
];
3383 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3384 pring
->stats
.iocb_event
++;
3387 * The next available response entry should never exceed the maximum
3388 * entries. If it does, treat it as an adapter hardware error.
3390 portRspMax
= pring
->sli
.sli3
.numRiocb
;
3391 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3392 if (portRspPut
>= portRspMax
) {
3394 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3395 * rsp ring <portRspMax>
3397 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3398 "0303 Ring %d handler: portRspPut %d "
3399 "is bigger than rsp ring %d\n",
3400 pring
->ringno
, portRspPut
, portRspMax
);
3402 phba
->link_state
= LPFC_HBA_ERROR
;
3403 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3405 phba
->work_hs
= HS_FFER3
;
3406 lpfc_handle_eratt(phba
);
3412 while (pring
->sli
.sli3
.rspidx
!= portRspPut
) {
3414 * Build a completion list and call the appropriate handler.
3415 * The process is to get the next available response iocb, get
3416 * a free iocb from the list, copy the response data into the
3417 * free iocb, insert to the continuation list, and update the
3418 * next response index to slim. This process makes response
3419 * iocb's in the ring available to DMA as fast as possible but
3420 * pays a penalty for a copy operation. Since the iocb is
3421 * only 32 bytes, this penalty is considered small relative to
3422 * the PCI reads for register values and a slim write. When
3423 * the ulpLe field is set, the entire Command has been
3426 entry
= lpfc_resp_iocb(phba
, pring
);
3428 phba
->last_completion_time
= jiffies
;
3429 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
3430 if (rspiocbp
== NULL
) {
3431 printk(KERN_ERR
"%s: out of buffers! Failing "
3432 "completion.\n", __func__
);
3436 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
3437 phba
->iocb_rsp_size
);
3438 irsp
= &rspiocbp
->iocb
;
3440 if (++pring
->sli
.sli3
.rspidx
>= portRspMax
)
3441 pring
->sli
.sli3
.rspidx
= 0;
3443 if (pring
->ringno
== LPFC_ELS_RING
) {
3444 lpfc_debugfs_slow_ring_trc(phba
,
3445 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3446 *(((uint32_t *) irsp
) + 4),
3447 *(((uint32_t *) irsp
) + 6),
3448 *(((uint32_t *) irsp
) + 7));
3451 writel(pring
->sli
.sli3
.rspidx
,
3452 &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3454 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3455 /* Handle the response IOCB */
3456 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
3457 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3460 * If the port response put pointer has not been updated, sync
3461 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3462 * response put pointer.
3464 if (pring
->sli
.sli3
.rspidx
== portRspPut
) {
3465 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3467 } /* while (pring->sli.sli3.rspidx != portRspPut) */
3469 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
3470 /* At least one response entry has been freed */
3471 pring
->stats
.iocb_rsp_full
++;
3472 /* SET RxRE_RSP in Chip Att register */
3473 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3474 writel(status
, phba
->CAregaddr
);
3475 readl(phba
->CAregaddr
); /* flush */
3477 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3478 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3479 pring
->stats
.iocb_cmd_empty
++;
3481 /* Force update of the local copy of cmdGetInx */
3482 pring
->sli
.sli3
.local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3483 lpfc_sli_resume_iocb(phba
, pring
);
3485 if ((pring
->lpfc_sli_cmd_available
))
3486 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3490 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3495 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3496 * @phba: Pointer to HBA context object.
3497 * @pring: Pointer to driver SLI ring object.
3498 * @mask: Host attention register mask for this ring.
3500 * This function is called from the worker thread when there is a pending
3501 * ELS response iocb on the driver internal slow-path response iocb worker
3502 * queue. The caller does not hold any lock. The function will remove each
3503 * response iocb from the response worker queue and calls the handle
3504 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3507 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
3508 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3510 struct lpfc_iocbq
*irspiocbq
;
3511 struct hbq_dmabuf
*dmabuf
;
3512 struct lpfc_cq_event
*cq_event
;
3513 unsigned long iflag
;
3515 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3516 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
3517 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3518 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
3519 /* Get the response iocb from the head of work queue */
3520 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3521 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3522 cq_event
, struct lpfc_cq_event
, list
);
3523 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3525 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3526 case CQE_CODE_COMPL_WQE
:
3527 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3529 /* Translate ELS WCQE to response IOCBQ */
3530 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3533 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3536 case CQE_CODE_RECEIVE
:
3537 case CQE_CODE_RECEIVE_V1
:
3538 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3540 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3549 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3550 * @phba: Pointer to HBA context object.
3551 * @pring: Pointer to driver SLI ring object.
3553 * This function aborts all iocbs in the given ring and frees all the iocb
3554 * objects in txq. This function issues an abort iocb for all the iocb commands
3555 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3556 * the return of this function. The caller is not required to hold any locks.
3559 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3561 LIST_HEAD(completions
);
3562 struct lpfc_iocbq
*iocb
, *next_iocb
;
3564 if (pring
->ringno
== LPFC_ELS_RING
) {
3565 lpfc_fabric_abort_hba(phba
);
3568 /* Error everything on txq and txcmplq
3571 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3572 spin_lock_irq(&pring
->ring_lock
);
3573 list_splice_init(&pring
->txq
, &completions
);
3575 spin_unlock_irq(&pring
->ring_lock
);
3577 spin_lock_irq(&phba
->hbalock
);
3578 /* Next issue ABTS for everything on the txcmplq */
3579 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3580 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3581 spin_unlock_irq(&phba
->hbalock
);
3583 spin_lock_irq(&phba
->hbalock
);
3584 list_splice_init(&pring
->txq
, &completions
);
3587 /* Next issue ABTS for everything on the txcmplq */
3588 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3589 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3590 spin_unlock_irq(&phba
->hbalock
);
3593 /* Cancel all the IOCBs from the completions list */
3594 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3599 * lpfc_sli_abort_fcp_rings - Abort all iocbs in all FCP rings
3600 * @phba: Pointer to HBA context object.
3601 * @pring: Pointer to driver SLI ring object.
3603 * This function aborts all iocbs in FCP rings and frees all the iocb
3604 * objects in txq. This function issues an abort iocb for all the iocb commands
3605 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3606 * the return of this function. The caller is not required to hold any locks.
3609 lpfc_sli_abort_fcp_rings(struct lpfc_hba
*phba
)
3611 struct lpfc_sli
*psli
= &phba
->sli
;
3612 struct lpfc_sli_ring
*pring
;
3615 /* Look on all the FCP Rings for the iotag */
3616 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3617 for (i
= 0; i
< phba
->cfg_fcp_io_channel
; i
++) {
3618 pring
= &psli
->ring
[i
+ MAX_SLI3_CONFIGURED_RINGS
];
3619 lpfc_sli_abort_iocb_ring(phba
, pring
);
3622 pring
= &psli
->ring
[psli
->fcp_ring
];
3623 lpfc_sli_abort_iocb_ring(phba
, pring
);
3629 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3630 * @phba: Pointer to HBA context object.
3632 * This function flushes all iocbs in the fcp ring and frees all the iocb
3633 * objects in txq and txcmplq. This function will not issue abort iocbs
3634 * for all the iocb commands in txcmplq, they will just be returned with
3635 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3636 * slot has been permanently disabled.
3639 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3643 struct lpfc_sli
*psli
= &phba
->sli
;
3644 struct lpfc_sli_ring
*pring
;
3647 spin_lock_irq(&phba
->hbalock
);
3648 /* Indicate the I/O queues are flushed */
3649 phba
->hba_flag
|= HBA_FCP_IOQ_FLUSH
;
3650 spin_unlock_irq(&phba
->hbalock
);
3652 /* Look on all the FCP Rings for the iotag */
3653 if (phba
->sli_rev
>= LPFC_SLI_REV4
) {
3654 for (i
= 0; i
< phba
->cfg_fcp_io_channel
; i
++) {
3655 pring
= &psli
->ring
[i
+ MAX_SLI3_CONFIGURED_RINGS
];
3657 spin_lock_irq(&pring
->ring_lock
);
3658 /* Retrieve everything on txq */
3659 list_splice_init(&pring
->txq
, &txq
);
3660 /* Retrieve everything on the txcmplq */
3661 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3663 pring
->txcmplq_cnt
= 0;
3664 spin_unlock_irq(&pring
->ring_lock
);
3667 lpfc_sli_cancel_iocbs(phba
, &txq
,
3668 IOSTAT_LOCAL_REJECT
,
3670 /* Flush the txcmpq */
3671 lpfc_sli_cancel_iocbs(phba
, &txcmplq
,
3672 IOSTAT_LOCAL_REJECT
,
3676 pring
= &psli
->ring
[psli
->fcp_ring
];
3678 spin_lock_irq(&phba
->hbalock
);
3679 /* Retrieve everything on txq */
3680 list_splice_init(&pring
->txq
, &txq
);
3681 /* Retrieve everything on the txcmplq */
3682 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3684 pring
->txcmplq_cnt
= 0;
3685 spin_unlock_irq(&phba
->hbalock
);
3688 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3690 /* Flush the txcmpq */
3691 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3697 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3698 * @phba: Pointer to HBA context object.
3699 * @mask: Bit mask to be checked.
3701 * This function reads the host status register and compares
3702 * with the provided bit mask to check if HBA completed
3703 * the restart. This function will wait in a loop for the
3704 * HBA to complete restart. If the HBA does not restart within
3705 * 15 iterations, the function will reset the HBA again. The
3706 * function returns 1 when HBA fail to restart otherwise returns
3710 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3716 /* Read the HBA Host Status Register */
3717 if (lpfc_readl(phba
->HSregaddr
, &status
))
3721 * Check status register every 100ms for 5 retries, then every
3722 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3723 * every 2.5 sec for 4.
3724 * Break our of the loop if errors occurred during init.
3726 while (((status
& mask
) != mask
) &&
3727 !(status
& HS_FFERM
) &&
3739 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3740 lpfc_sli_brdrestart(phba
);
3742 /* Read the HBA Host Status Register */
3743 if (lpfc_readl(phba
->HSregaddr
, &status
)) {
3749 /* Check to see if any errors occurred during init */
3750 if ((status
& HS_FFERM
) || (i
>= 20)) {
3751 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3752 "2751 Adapter failed to restart, "
3753 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3755 readl(phba
->MBslimaddr
+ 0xa8),
3756 readl(phba
->MBslimaddr
+ 0xac));
3757 phba
->link_state
= LPFC_HBA_ERROR
;
3765 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3766 * @phba: Pointer to HBA context object.
3767 * @mask: Bit mask to be checked.
3769 * This function checks the host status register to check if HBA is
3770 * ready. This function will wait in a loop for the HBA to be ready
3771 * If the HBA is not ready , the function will will reset the HBA PCI
3772 * function again. The function returns 1 when HBA fail to be ready
3773 * otherwise returns zero.
3776 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3781 /* Read the HBA Host Status Register */
3782 status
= lpfc_sli4_post_status_check(phba
);
3785 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3786 lpfc_sli_brdrestart(phba
);
3787 status
= lpfc_sli4_post_status_check(phba
);
3790 /* Check to see if any errors occurred during init */
3792 phba
->link_state
= LPFC_HBA_ERROR
;
3795 phba
->sli4_hba
.intr_enable
= 0;
3801 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3802 * @phba: Pointer to HBA context object.
3803 * @mask: Bit mask to be checked.
3805 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3806 * from the API jump table function pointer from the lpfc_hba struct.
3809 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3811 return phba
->lpfc_sli_brdready(phba
, mask
);
3814 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3817 * lpfc_reset_barrier - Make HBA ready for HBA reset
3818 * @phba: Pointer to HBA context object.
3820 * This function is called before resetting an HBA. This function is called
3821 * with hbalock held and requests HBA to quiesce DMAs before a reset.
3823 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3825 uint32_t __iomem
*resp_buf
;
3826 uint32_t __iomem
*mbox_buf
;
3827 volatile uint32_t mbox
;
3828 uint32_t hc_copy
, ha_copy
, resp_data
;
3832 lockdep_assert_held(&phba
->hbalock
);
3834 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3835 if (hdrtype
!= 0x80 ||
3836 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3837 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3841 * Tell the other part of the chip to suspend temporarily all
3844 resp_buf
= phba
->MBslimaddr
;
3846 /* Disable the error attention */
3847 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
3849 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3850 readl(phba
->HCregaddr
); /* flush */
3851 phba
->link_flag
|= LS_IGNORE_ERATT
;
3853 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3855 if (ha_copy
& HA_ERATT
) {
3856 /* Clear Chip error bit */
3857 writel(HA_ERATT
, phba
->HAregaddr
);
3858 phba
->pport
->stopped
= 1;
3862 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3863 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3865 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3866 mbox_buf
= phba
->MBslimaddr
;
3867 writel(mbox
, mbox_buf
);
3869 for (i
= 0; i
< 50; i
++) {
3870 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3872 if (resp_data
!= ~(BARRIER_TEST_PATTERN
))
3878 if (lpfc_readl((resp_buf
+ 1), &resp_data
))
3880 if (resp_data
!= ~(BARRIER_TEST_PATTERN
)) {
3881 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3882 phba
->pport
->stopped
)
3888 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3890 for (i
= 0; i
< 500; i
++) {
3891 if (lpfc_readl(resp_buf
, &resp_data
))
3893 if (resp_data
!= mbox
)
3902 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3904 if (!(ha_copy
& HA_ERATT
))
3910 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3911 writel(HA_ERATT
, phba
->HAregaddr
);
3912 phba
->pport
->stopped
= 1;
3916 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3917 writel(hc_copy
, phba
->HCregaddr
);
3918 readl(phba
->HCregaddr
); /* flush */
3922 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3923 * @phba: Pointer to HBA context object.
3925 * This function issues a kill_board mailbox command and waits for
3926 * the error attention interrupt. This function is called for stopping
3927 * the firmware processing. The caller is not required to hold any
3928 * locks. This function calls lpfc_hba_down_post function to free
3929 * any pending commands after the kill. The function will return 1 when it
3930 * fails to kill the board else will return 0.
3933 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3935 struct lpfc_sli
*psli
;
3945 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3946 "0329 Kill HBA Data: x%x x%x\n",
3947 phba
->pport
->port_state
, psli
->sli_flag
);
3949 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3953 /* Disable the error attention */
3954 spin_lock_irq(&phba
->hbalock
);
3955 if (lpfc_readl(phba
->HCregaddr
, &status
)) {
3956 spin_unlock_irq(&phba
->hbalock
);
3957 mempool_free(pmb
, phba
->mbox_mem_pool
);
3960 status
&= ~HC_ERINT_ENA
;
3961 writel(status
, phba
->HCregaddr
);
3962 readl(phba
->HCregaddr
); /* flush */
3963 phba
->link_flag
|= LS_IGNORE_ERATT
;
3964 spin_unlock_irq(&phba
->hbalock
);
3966 lpfc_kill_board(phba
, pmb
);
3967 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3968 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3970 if (retval
!= MBX_SUCCESS
) {
3971 if (retval
!= MBX_BUSY
)
3972 mempool_free(pmb
, phba
->mbox_mem_pool
);
3973 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3974 "2752 KILL_BOARD command failed retval %d\n",
3976 spin_lock_irq(&phba
->hbalock
);
3977 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3978 spin_unlock_irq(&phba
->hbalock
);
3982 spin_lock_irq(&phba
->hbalock
);
3983 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3984 spin_unlock_irq(&phba
->hbalock
);
3986 mempool_free(pmb
, phba
->mbox_mem_pool
);
3988 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3989 * attention every 100ms for 3 seconds. If we don't get ERATT after
3990 * 3 seconds we still set HBA_ERROR state because the status of the
3991 * board is now undefined.
3993 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
3995 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3997 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
4001 del_timer_sync(&psli
->mbox_tmo
);
4002 if (ha_copy
& HA_ERATT
) {
4003 writel(HA_ERATT
, phba
->HAregaddr
);
4004 phba
->pport
->stopped
= 1;
4006 spin_lock_irq(&phba
->hbalock
);
4007 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4008 psli
->mbox_active
= NULL
;
4009 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
4010 spin_unlock_irq(&phba
->hbalock
);
4012 lpfc_hba_down_post(phba
);
4013 phba
->link_state
= LPFC_HBA_ERROR
;
4015 return ha_copy
& HA_ERATT
? 0 : 1;
4019 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
4020 * @phba: Pointer to HBA context object.
4022 * This function resets the HBA by writing HC_INITFF to the control
4023 * register. After the HBA resets, this function resets all the iocb ring
4024 * indices. This function disables PCI layer parity checking during
4026 * This function returns 0 always.
4027 * The caller is not required to hold any locks.
4030 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
4032 struct lpfc_sli
*psli
;
4033 struct lpfc_sli_ring
*pring
;
4040 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4041 "0325 Reset HBA Data: x%x x%x\n",
4042 phba
->pport
->port_state
, psli
->sli_flag
);
4044 /* perform board reset */
4045 phba
->fc_eventTag
= 0;
4046 phba
->link_events
= 0;
4047 phba
->pport
->fc_myDID
= 0;
4048 phba
->pport
->fc_prevDID
= 0;
4050 /* Turn off parity checking and serr during the physical reset */
4051 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
4052 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
4054 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
4056 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
4058 /* Now toggle INITFF bit in the Host Control Register */
4059 writel(HC_INITFF
, phba
->HCregaddr
);
4061 readl(phba
->HCregaddr
); /* flush */
4062 writel(0, phba
->HCregaddr
);
4063 readl(phba
->HCregaddr
); /* flush */
4065 /* Restore PCI cmd register */
4066 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
4068 /* Initialize relevant SLI info */
4069 for (i
= 0; i
< psli
->num_rings
; i
++) {
4070 pring
= &psli
->ring
[i
];
4072 pring
->sli
.sli3
.rspidx
= 0;
4073 pring
->sli
.sli3
.next_cmdidx
= 0;
4074 pring
->sli
.sli3
.local_getidx
= 0;
4075 pring
->sli
.sli3
.cmdidx
= 0;
4076 pring
->missbufcnt
= 0;
4079 phba
->link_state
= LPFC_WARM_START
;
4084 * lpfc_sli4_brdreset - Reset a sli-4 HBA
4085 * @phba: Pointer to HBA context object.
4087 * This function resets a SLI4 HBA. This function disables PCI layer parity
4088 * checking during resets the device. The caller is not required to hold
4091 * This function returns 0 always.
4094 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
4096 struct lpfc_sli
*psli
= &phba
->sli
;
4101 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4102 "0295 Reset HBA Data: x%x x%x x%x\n",
4103 phba
->pport
->port_state
, psli
->sli_flag
,
4106 /* perform board reset */
4107 phba
->fc_eventTag
= 0;
4108 phba
->link_events
= 0;
4109 phba
->pport
->fc_myDID
= 0;
4110 phba
->pport
->fc_prevDID
= 0;
4112 spin_lock_irq(&phba
->hbalock
);
4113 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
4114 phba
->fcf
.fcf_flag
= 0;
4115 spin_unlock_irq(&phba
->hbalock
);
4117 /* SLI4 INTF 2: if FW dump is being taken skip INIT_PORT */
4118 if (phba
->hba_flag
& HBA_FW_DUMP_OP
) {
4119 phba
->hba_flag
&= ~HBA_FW_DUMP_OP
;
4123 /* Now physically reset the device */
4124 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4125 "0389 Performing PCI function reset!\n");
4127 /* Turn off parity checking and serr during the physical reset */
4128 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
4129 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, (cfg_value
&
4130 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
4132 /* Perform FCoE PCI function reset before freeing queue memory */
4133 rc
= lpfc_pci_function_reset(phba
);
4134 lpfc_sli4_queue_destroy(phba
);
4136 /* Restore PCI cmd register */
4137 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
4143 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
4144 * @phba: Pointer to HBA context object.
4146 * This function is called in the SLI initialization code path to
4147 * restart the HBA. The caller is not required to hold any lock.
4148 * This function writes MBX_RESTART mailbox command to the SLIM and
4149 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
4150 * function to free any pending commands. The function enables
4151 * POST only during the first initialization. The function returns zero.
4152 * The function does not guarantee completion of MBX_RESTART mailbox
4153 * command before the return of this function.
4156 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
4159 struct lpfc_sli
*psli
;
4160 volatile uint32_t word0
;
4161 void __iomem
*to_slim
;
4162 uint32_t hba_aer_enabled
;
4164 spin_lock_irq(&phba
->hbalock
);
4166 /* Take PCIe device Advanced Error Reporting (AER) state */
4167 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4172 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4173 "0337 Restart HBA Data: x%x x%x\n",
4174 phba
->pport
->port_state
, psli
->sli_flag
);
4177 mb
= (MAILBOX_t
*) &word0
;
4178 mb
->mbxCommand
= MBX_RESTART
;
4181 lpfc_reset_barrier(phba
);
4183 to_slim
= phba
->MBslimaddr
;
4184 writel(*(uint32_t *) mb
, to_slim
);
4185 readl(to_slim
); /* flush */
4187 /* Only skip post after fc_ffinit is completed */
4188 if (phba
->pport
->port_state
)
4189 word0
= 1; /* This is really setting up word1 */
4191 word0
= 0; /* This is really setting up word1 */
4192 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
4193 writel(*(uint32_t *) mb
, to_slim
);
4194 readl(to_slim
); /* flush */
4196 lpfc_sli_brdreset(phba
);
4197 phba
->pport
->stopped
= 0;
4198 phba
->link_state
= LPFC_INIT_START
;
4200 spin_unlock_irq(&phba
->hbalock
);
4202 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4203 psli
->stats_start
= get_seconds();
4205 /* Give the INITFF and Post time to settle. */
4208 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4209 if (hba_aer_enabled
)
4210 pci_disable_pcie_error_reporting(phba
->pcidev
);
4212 lpfc_hba_down_post(phba
);
4218 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
4219 * @phba: Pointer to HBA context object.
4221 * This function is called in the SLI initialization code path to restart
4222 * a SLI4 HBA. The caller is not required to hold any lock.
4223 * At the end of the function, it calls lpfc_hba_down_post function to
4224 * free any pending commands.
4227 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
4229 struct lpfc_sli
*psli
= &phba
->sli
;
4230 uint32_t hba_aer_enabled
;
4234 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
4235 "0296 Restart HBA Data: x%x x%x\n",
4236 phba
->pport
->port_state
, psli
->sli_flag
);
4238 /* Take PCIe device Advanced Error Reporting (AER) state */
4239 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
4241 rc
= lpfc_sli4_brdreset(phba
);
4243 spin_lock_irq(&phba
->hbalock
);
4244 phba
->pport
->stopped
= 0;
4245 phba
->link_state
= LPFC_INIT_START
;
4247 spin_unlock_irq(&phba
->hbalock
);
4249 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
4250 psli
->stats_start
= get_seconds();
4252 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
4253 if (hba_aer_enabled
)
4254 pci_disable_pcie_error_reporting(phba
->pcidev
);
4256 lpfc_hba_down_post(phba
);
4262 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4263 * @phba: Pointer to HBA context object.
4265 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4266 * API jump table function pointer from the lpfc_hba struct.
4269 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
4271 return phba
->lpfc_sli_brdrestart(phba
);
4275 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4276 * @phba: Pointer to HBA context object.
4278 * This function is called after a HBA restart to wait for successful
4279 * restart of the HBA. Successful restart of the HBA is indicated by
4280 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4281 * iteration, the function will restart the HBA again. The function returns
4282 * zero if HBA successfully restarted else returns negative error code.
4285 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
4287 uint32_t status
, i
= 0;
4289 /* Read the HBA Host Status Register */
4290 if (lpfc_readl(phba
->HSregaddr
, &status
))
4293 /* Check status register to see what current state is */
4295 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
4297 /* Check every 10ms for 10 retries, then every 100ms for 90
4298 * retries, then every 1 sec for 50 retires for a total of
4299 * ~60 seconds before reset the board again and check every
4300 * 1 sec for 50 retries. The up to 60 seconds before the
4301 * board ready is required by the Falcon FIPS zeroization
4302 * complete, and any reset the board in between shall cause
4303 * restart of zeroization, further delay the board ready.
4306 /* Adapter failed to init, timeout, status reg
4308 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4309 "0436 Adapter failed to init, "
4310 "timeout, status reg x%x, "
4311 "FW Data: A8 x%x AC x%x\n", status
,
4312 readl(phba
->MBslimaddr
+ 0xa8),
4313 readl(phba
->MBslimaddr
+ 0xac));
4314 phba
->link_state
= LPFC_HBA_ERROR
;
4318 /* Check to see if any errors occurred during init */
4319 if (status
& HS_FFERM
) {
4320 /* ERROR: During chipset initialization */
4321 /* Adapter failed to init, chipset, status reg
4323 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4324 "0437 Adapter failed to init, "
4325 "chipset, status reg x%x, "
4326 "FW Data: A8 x%x AC x%x\n", status
,
4327 readl(phba
->MBslimaddr
+ 0xa8),
4328 readl(phba
->MBslimaddr
+ 0xac));
4329 phba
->link_state
= LPFC_HBA_ERROR
;
4342 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4343 lpfc_sli_brdrestart(phba
);
4345 /* Read the HBA Host Status Register */
4346 if (lpfc_readl(phba
->HSregaddr
, &status
))
4350 /* Check to see if any errors occurred during init */
4351 if (status
& HS_FFERM
) {
4352 /* ERROR: During chipset initialization */
4353 /* Adapter failed to init, chipset, status reg <status> */
4354 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4355 "0438 Adapter failed to init, chipset, "
4357 "FW Data: A8 x%x AC x%x\n", status
,
4358 readl(phba
->MBslimaddr
+ 0xa8),
4359 readl(phba
->MBslimaddr
+ 0xac));
4360 phba
->link_state
= LPFC_HBA_ERROR
;
4364 /* Clear all interrupt enable conditions */
4365 writel(0, phba
->HCregaddr
);
4366 readl(phba
->HCregaddr
); /* flush */
4368 /* setup host attn register */
4369 writel(0xffffffff, phba
->HAregaddr
);
4370 readl(phba
->HAregaddr
); /* flush */
4375 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4377 * This function calculates and returns the number of HBQs required to be
4381 lpfc_sli_hbq_count(void)
4383 return ARRAY_SIZE(lpfc_hbq_defs
);
4387 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4389 * This function adds the number of hbq entries in every HBQ to get
4390 * the total number of hbq entries required for the HBA and returns
4394 lpfc_sli_hbq_entry_count(void)
4396 int hbq_count
= lpfc_sli_hbq_count();
4400 for (i
= 0; i
< hbq_count
; ++i
)
4401 count
+= lpfc_hbq_defs
[i
]->entry_count
;
4406 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4408 * This function calculates amount of memory required for all hbq entries
4409 * to be configured and returns the total memory required.
4412 lpfc_sli_hbq_size(void)
4414 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
4418 * lpfc_sli_hbq_setup - configure and initialize HBQs
4419 * @phba: Pointer to HBA context object.
4421 * This function is called during the SLI initialization to configure
4422 * all the HBQs and post buffers to the HBQ. The caller is not
4423 * required to hold any locks. This function will return zero if successful
4424 * else it will return negative error code.
4427 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
4429 int hbq_count
= lpfc_sli_hbq_count();
4433 uint32_t hbq_entry_index
;
4435 /* Get a Mailbox buffer to setup mailbox
4436 * commands for HBA initialization
4438 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4445 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4446 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4447 phba
->hbq_in_use
= 1;
4449 hbq_entry_index
= 0;
4450 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
4451 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
4452 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
4453 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
4454 phba
->hbqs
[hbqno
].entry_count
=
4455 lpfc_hbq_defs
[hbqno
]->entry_count
;
4456 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
4457 hbq_entry_index
, pmb
);
4458 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
4460 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
4461 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4462 mbxStatus <status>, ring <num> */
4464 lpfc_printf_log(phba
, KERN_ERR
,
4465 LOG_SLI
| LOG_VPORT
,
4466 "1805 Adapter failed to init. "
4467 "Data: x%x x%x x%x\n",
4469 pmbox
->mbxStatus
, hbqno
);
4471 phba
->link_state
= LPFC_HBA_ERROR
;
4472 mempool_free(pmb
, phba
->mbox_mem_pool
);
4476 phba
->hbq_count
= hbq_count
;
4478 mempool_free(pmb
, phba
->mbox_mem_pool
);
4480 /* Initially populate or replenish the HBQs */
4481 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
4482 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
4487 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4488 * @phba: Pointer to HBA context object.
4490 * This function is called during the SLI initialization to configure
4491 * all the HBQs and post buffers to the HBQ. The caller is not
4492 * required to hold any locks. This function will return zero if successful
4493 * else it will return negative error code.
4496 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
4498 phba
->hbq_in_use
= 1;
4499 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
4500 phba
->hbq_count
= 1;
4501 /* Initially populate or replenish the HBQs */
4502 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
4507 * lpfc_sli_config_port - Issue config port mailbox command
4508 * @phba: Pointer to HBA context object.
4509 * @sli_mode: sli mode - 2/3
4511 * This function is called by the sli intialization code path
4512 * to issue config_port mailbox command. This function restarts the
4513 * HBA firmware and issues a config_port mailbox command to configure
4514 * the SLI interface in the sli mode specified by sli_mode
4515 * variable. The caller is not required to hold any locks.
4516 * The function returns 0 if successful, else returns negative error
4520 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
4523 uint32_t resetcount
= 0, rc
= 0, done
= 0;
4525 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4527 phba
->link_state
= LPFC_HBA_ERROR
;
4531 phba
->sli_rev
= sli_mode
;
4532 while (resetcount
< 2 && !done
) {
4533 spin_lock_irq(&phba
->hbalock
);
4534 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4535 spin_unlock_irq(&phba
->hbalock
);
4536 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4537 lpfc_sli_brdrestart(phba
);
4538 rc
= lpfc_sli_chipset_init(phba
);
4542 spin_lock_irq(&phba
->hbalock
);
4543 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4544 spin_unlock_irq(&phba
->hbalock
);
4547 /* Call pre CONFIG_PORT mailbox command initialization. A
4548 * value of 0 means the call was successful. Any other
4549 * nonzero value is a failure, but if ERESTART is returned,
4550 * the driver may reset the HBA and try again.
4552 rc
= lpfc_config_port_prep(phba
);
4553 if (rc
== -ERESTART
) {
4554 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4559 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4560 lpfc_config_port(phba
, pmb
);
4561 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
4562 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
4563 LPFC_SLI3_HBQ_ENABLED
|
4564 LPFC_SLI3_CRP_ENABLED
|
4565 LPFC_SLI3_BG_ENABLED
|
4566 LPFC_SLI3_DSS_ENABLED
);
4567 if (rc
!= MBX_SUCCESS
) {
4568 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4569 "0442 Adapter failed to init, mbxCmd x%x "
4570 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4571 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
4572 spin_lock_irq(&phba
->hbalock
);
4573 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
4574 spin_unlock_irq(&phba
->hbalock
);
4577 /* Allow asynchronous mailbox command to go through */
4578 spin_lock_irq(&phba
->hbalock
);
4579 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4580 spin_unlock_irq(&phba
->hbalock
);
4583 if ((pmb
->u
.mb
.un
.varCfgPort
.casabt
== 1) &&
4584 (pmb
->u
.mb
.un
.varCfgPort
.gasabt
== 0))
4585 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
4586 "3110 Port did not grant ASABT\n");
4591 goto do_prep_failed
;
4593 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
4594 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
4596 goto do_prep_failed
;
4598 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
4599 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
4600 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
4601 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
4602 phba
->max_vpi
: phba
->max_vports
;
4606 phba
->fips_level
= 0;
4607 phba
->fips_spec_rev
= 0;
4608 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
4609 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
4610 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
4611 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
4612 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4613 "2850 Security Crypto Active. FIPS x%d "
4615 phba
->fips_level
, phba
->fips_spec_rev
);
4617 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
4618 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4619 "2856 Config Port Security Crypto "
4621 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
4623 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
4624 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
4625 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
4626 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
4628 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
4629 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
4631 if (phba
->cfg_enable_bg
) {
4632 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
4633 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4635 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4636 "0443 Adapter did not grant "
4640 phba
->hbq_get
= NULL
;
4641 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4645 mempool_free(pmb
, phba
->mbox_mem_pool
);
4651 * lpfc_sli_hba_setup - SLI intialization function
4652 * @phba: Pointer to HBA context object.
4654 * This function is the main SLI intialization function. This function
4655 * is called by the HBA intialization code, HBA reset code and HBA
4656 * error attention handler code. Caller is not required to hold any
4657 * locks. This function issues config_port mailbox command to configure
4658 * the SLI, setup iocb rings and HBQ rings. In the end the function
4659 * calls the config_port_post function to issue init_link mailbox
4660 * command and to start the discovery. The function will return zero
4661 * if successful, else it will return negative error code.
4664 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4670 switch (phba
->cfg_sli_mode
) {
4672 if (phba
->cfg_enable_npiv
) {
4673 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4674 "1824 NPIV enabled: Override sli_mode "
4675 "parameter (%d) to auto (0).\n",
4676 phba
->cfg_sli_mode
);
4685 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4686 "1819 Unrecognized sli_mode parameter: %d.\n",
4687 phba
->cfg_sli_mode
);
4691 phba
->fcp_embed_io
= 0; /* SLI4 FC support only */
4693 rc
= lpfc_sli_config_port(phba
, mode
);
4695 if (rc
&& phba
->cfg_sli_mode
== 3)
4696 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4697 "1820 Unable to select SLI-3. "
4698 "Not supported by adapter.\n");
4699 if (rc
&& mode
!= 2)
4700 rc
= lpfc_sli_config_port(phba
, 2);
4701 else if (rc
&& mode
== 2)
4702 rc
= lpfc_sli_config_port(phba
, 3);
4704 goto lpfc_sli_hba_setup_error
;
4706 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4707 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4708 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4710 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4711 "2709 This device supports "
4712 "Advanced Error Reporting (AER)\n");
4713 spin_lock_irq(&phba
->hbalock
);
4714 phba
->hba_flag
|= HBA_AER_ENABLED
;
4715 spin_unlock_irq(&phba
->hbalock
);
4717 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4718 "2708 This device does not support "
4719 "Advanced Error Reporting (AER): %d\n",
4721 phba
->cfg_aer_support
= 0;
4725 if (phba
->sli_rev
== 3) {
4726 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4727 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4729 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4730 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4731 phba
->sli3_options
= 0;
4734 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4735 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4736 phba
->sli_rev
, phba
->max_vpi
);
4737 rc
= lpfc_sli_ring_map(phba
);
4740 goto lpfc_sli_hba_setup_error
;
4742 /* Initialize VPIs. */
4743 if (phba
->sli_rev
== LPFC_SLI_REV3
) {
4745 * The VPI bitmask and physical ID array are allocated
4746 * and initialized once only - at driver load. A port
4747 * reset doesn't need to reinitialize this memory.
4749 if ((phba
->vpi_bmask
== NULL
) && (phba
->vpi_ids
== NULL
)) {
4750 longs
= (phba
->max_vpi
+ BITS_PER_LONG
) / BITS_PER_LONG
;
4751 phba
->vpi_bmask
= kzalloc(longs
* sizeof(unsigned long),
4753 if (!phba
->vpi_bmask
) {
4755 goto lpfc_sli_hba_setup_error
;
4758 phba
->vpi_ids
= kzalloc(
4759 (phba
->max_vpi
+1) * sizeof(uint16_t),
4761 if (!phba
->vpi_ids
) {
4762 kfree(phba
->vpi_bmask
);
4764 goto lpfc_sli_hba_setup_error
;
4766 for (i
= 0; i
< phba
->max_vpi
; i
++)
4767 phba
->vpi_ids
[i
] = i
;
4772 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4773 rc
= lpfc_sli_hbq_setup(phba
);
4775 goto lpfc_sli_hba_setup_error
;
4777 spin_lock_irq(&phba
->hbalock
);
4778 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4779 spin_unlock_irq(&phba
->hbalock
);
4781 rc
= lpfc_config_port_post(phba
);
4783 goto lpfc_sli_hba_setup_error
;
4787 lpfc_sli_hba_setup_error
:
4788 phba
->link_state
= LPFC_HBA_ERROR
;
4789 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4790 "0445 Firmware initialization failed\n");
4795 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4796 * @phba: Pointer to HBA context object.
4797 * @mboxq: mailbox pointer.
4798 * This function issue a dump mailbox command to read config region
4799 * 23 and parse the records in the region and populate driver
4803 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
)
4805 LPFC_MBOXQ_t
*mboxq
;
4806 struct lpfc_dmabuf
*mp
;
4807 struct lpfc_mqe
*mqe
;
4808 uint32_t data_length
;
4811 /* Program the default value of vlan_id and fc_map */
4812 phba
->valid_vlan
= 0;
4813 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4814 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4815 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4817 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4821 mqe
= &mboxq
->u
.mqe
;
4822 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
)) {
4824 goto out_free_mboxq
;
4827 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4828 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4830 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4831 "(%d):2571 Mailbox cmd x%x Status x%x "
4832 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4833 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4834 "CQ: x%x x%x x%x x%x\n",
4835 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4836 bf_get(lpfc_mqe_command
, mqe
),
4837 bf_get(lpfc_mqe_status
, mqe
),
4838 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4839 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4840 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4841 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4842 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4843 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4844 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4845 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4846 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4848 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4849 mboxq
->mcqe
.trailer
);
4852 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4855 goto out_free_mboxq
;
4857 data_length
= mqe
->un
.mb_words
[5];
4858 if (data_length
> DMP_RGN23_SIZE
) {
4859 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4862 goto out_free_mboxq
;
4865 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4866 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4871 mempool_free(mboxq
, phba
->mbox_mem_pool
);
4876 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4877 * @phba: pointer to lpfc hba data structure.
4878 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4879 * @vpd: pointer to the memory to hold resulting port vpd data.
4880 * @vpd_size: On input, the number of bytes allocated to @vpd.
4881 * On output, the number of data bytes in @vpd.
4883 * This routine executes a READ_REV SLI4 mailbox command. In
4884 * addition, this routine gets the port vpd data.
4888 * -ENOMEM - could not allocated memory.
4891 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4892 uint8_t *vpd
, uint32_t *vpd_size
)
4896 struct lpfc_dmabuf
*dmabuf
;
4897 struct lpfc_mqe
*mqe
;
4899 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4904 * Get a DMA buffer for the vpd data resulting from the READ_REV
4907 dma_size
= *vpd_size
;
4908 dmabuf
->virt
= dma_zalloc_coherent(&phba
->pcidev
->dev
, dma_size
,
4909 &dmabuf
->phys
, GFP_KERNEL
);
4910 if (!dmabuf
->virt
) {
4916 * The SLI4 implementation of READ_REV conflicts at word1,
4917 * bits 31:16 and SLI4 adds vpd functionality not present
4918 * in SLI3. This code corrects the conflicts.
4920 lpfc_read_rev(phba
, mboxq
);
4921 mqe
= &mboxq
->u
.mqe
;
4922 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4923 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4924 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4925 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4926 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4928 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4930 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4931 dmabuf
->virt
, dmabuf
->phys
);
4937 * The available vpd length cannot be bigger than the
4938 * DMA buffer passed to the port. Catch the less than
4939 * case and update the caller's size.
4941 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4942 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4944 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4946 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4947 dmabuf
->virt
, dmabuf
->phys
);
4953 * lpfc_sli4_retrieve_pport_name - Retrieve SLI4 device physical port name
4954 * @phba: pointer to lpfc hba data structure.
4956 * This routine retrieves SLI4 device physical port name this PCI function
4961 * otherwise - failed to retrieve physical port name
4964 lpfc_sli4_retrieve_pport_name(struct lpfc_hba
*phba
)
4966 LPFC_MBOXQ_t
*mboxq
;
4967 struct lpfc_mbx_get_cntl_attributes
*mbx_cntl_attr
;
4968 struct lpfc_controller_attribute
*cntl_attr
;
4969 struct lpfc_mbx_get_port_name
*get_port_name
;
4970 void *virtaddr
= NULL
;
4971 uint32_t alloclen
, reqlen
;
4972 uint32_t shdr_status
, shdr_add_status
;
4973 union lpfc_sli4_cfg_shdr
*shdr
;
4974 char cport_name
= 0;
4977 /* We assume nothing at this point */
4978 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4979 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_NON
;
4981 mboxq
= (LPFC_MBOXQ_t
*)mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4984 /* obtain link type and link number via READ_CONFIG */
4985 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_INVAL
;
4986 lpfc_sli4_read_config(phba
);
4987 if (phba
->sli4_hba
.lnk_info
.lnk_dv
== LPFC_LNK_DAT_VAL
)
4988 goto retrieve_ppname
;
4990 /* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
4991 reqlen
= sizeof(struct lpfc_mbx_get_cntl_attributes
);
4992 alloclen
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
4993 LPFC_MBOX_OPCODE_GET_CNTL_ATTRIBUTES
, reqlen
,
4994 LPFC_SLI4_MBX_NEMBED
);
4995 if (alloclen
< reqlen
) {
4996 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
4997 "3084 Allocated DMA memory size (%d) is "
4998 "less than the requested DMA memory size "
4999 "(%d)\n", alloclen
, reqlen
);
5001 goto out_free_mboxq
;
5003 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5004 virtaddr
= mboxq
->sge_array
->addr
[0];
5005 mbx_cntl_attr
= (struct lpfc_mbx_get_cntl_attributes
*)virtaddr
;
5006 shdr
= &mbx_cntl_attr
->cfg_shdr
;
5007 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5008 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5009 if (shdr_status
|| shdr_add_status
|| rc
) {
5010 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
5011 "3085 Mailbox x%x (x%x/x%x) failed, "
5012 "rc:x%x, status:x%x, add_status:x%x\n",
5013 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5014 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
5015 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
5016 rc
, shdr_status
, shdr_add_status
);
5018 goto out_free_mboxq
;
5020 cntl_attr
= &mbx_cntl_attr
->cntl_attr
;
5021 phba
->sli4_hba
.lnk_info
.lnk_dv
= LPFC_LNK_DAT_VAL
;
5022 phba
->sli4_hba
.lnk_info
.lnk_tp
=
5023 bf_get(lpfc_cntl_attr_lnk_type
, cntl_attr
);
5024 phba
->sli4_hba
.lnk_info
.lnk_no
=
5025 bf_get(lpfc_cntl_attr_lnk_numb
, cntl_attr
);
5026 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5027 "3086 lnk_type:%d, lnk_numb:%d\n",
5028 phba
->sli4_hba
.lnk_info
.lnk_tp
,
5029 phba
->sli4_hba
.lnk_info
.lnk_no
);
5032 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5033 LPFC_MBOX_OPCODE_GET_PORT_NAME
,
5034 sizeof(struct lpfc_mbx_get_port_name
) -
5035 sizeof(struct lpfc_sli4_cfg_mhdr
),
5036 LPFC_SLI4_MBX_EMBED
);
5037 get_port_name
= &mboxq
->u
.mqe
.un
.get_port_name
;
5038 shdr
= (union lpfc_sli4_cfg_shdr
*)&get_port_name
->header
.cfg_shdr
;
5039 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
, LPFC_OPCODE_VERSION_1
);
5040 bf_set(lpfc_mbx_get_port_name_lnk_type
, &get_port_name
->u
.request
,
5041 phba
->sli4_hba
.lnk_info
.lnk_tp
);
5042 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
5043 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
5044 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
5045 if (shdr_status
|| shdr_add_status
|| rc
) {
5046 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
5047 "3087 Mailbox x%x (x%x/x%x) failed: "
5048 "rc:x%x, status:x%x, add_status:x%x\n",
5049 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5050 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
5051 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
5052 rc
, shdr_status
, shdr_add_status
);
5054 goto out_free_mboxq
;
5056 switch (phba
->sli4_hba
.lnk_info
.lnk_no
) {
5057 case LPFC_LINK_NUMBER_0
:
5058 cport_name
= bf_get(lpfc_mbx_get_port_name_name0
,
5059 &get_port_name
->u
.response
);
5060 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5062 case LPFC_LINK_NUMBER_1
:
5063 cport_name
= bf_get(lpfc_mbx_get_port_name_name1
,
5064 &get_port_name
->u
.response
);
5065 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5067 case LPFC_LINK_NUMBER_2
:
5068 cport_name
= bf_get(lpfc_mbx_get_port_name_name2
,
5069 &get_port_name
->u
.response
);
5070 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5072 case LPFC_LINK_NUMBER_3
:
5073 cport_name
= bf_get(lpfc_mbx_get_port_name_name3
,
5074 &get_port_name
->u
.response
);
5075 phba
->sli4_hba
.pport_name_sta
= LPFC_SLI4_PPNAME_GET
;
5081 if (phba
->sli4_hba
.pport_name_sta
== LPFC_SLI4_PPNAME_GET
) {
5082 phba
->Port
[0] = cport_name
;
5083 phba
->Port
[1] = '\0';
5084 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5085 "3091 SLI get port name: %s\n", phba
->Port
);
5089 if (rc
!= MBX_TIMEOUT
) {
5090 if (bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
) == MBX_SLI4_CONFIG
)
5091 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
5093 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5099 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
5100 * @phba: pointer to lpfc hba data structure.
5102 * This routine is called to explicitly arm the SLI4 device's completion and
5106 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
5110 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
5111 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
5113 if (phba
->sli4_hba
.fcp_cq
) {
5115 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
5117 } while (++fcp_eqidx
< phba
->cfg_fcp_io_channel
);
5121 lpfc_sli4_cq_release(phba
->sli4_hba
.oas_cq
, LPFC_QUEUE_REARM
);
5123 if (phba
->sli4_hba
.hba_eq
) {
5124 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
5126 lpfc_sli4_eq_release(phba
->sli4_hba
.hba_eq
[fcp_eqidx
],
5131 lpfc_sli4_eq_release(phba
->sli4_hba
.fof_eq
, LPFC_QUEUE_REARM
);
5135 * lpfc_sli4_get_avail_extnt_rsrc - Get available resource extent count.
5136 * @phba: Pointer to HBA context object.
5137 * @type: The resource extent type.
5138 * @extnt_count: buffer to hold port available extent count.
5139 * @extnt_size: buffer to hold element count per extent.
5141 * This function calls the port and retrievs the number of available
5142 * extents and their size for a particular extent type.
5144 * Returns: 0 if successful. Nonzero otherwise.
5147 lpfc_sli4_get_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
,
5148 uint16_t *extnt_count
, uint16_t *extnt_size
)
5153 struct lpfc_mbx_get_rsrc_extent_info
*rsrc_info
;
5156 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5160 /* Find out how many extents are available for this resource type */
5161 length
= (sizeof(struct lpfc_mbx_get_rsrc_extent_info
) -
5162 sizeof(struct lpfc_sli4_cfg_mhdr
));
5163 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5164 LPFC_MBOX_OPCODE_GET_RSRC_EXTENT_INFO
,
5165 length
, LPFC_SLI4_MBX_EMBED
);
5167 /* Send an extents count of 0 - the GET doesn't use it. */
5168 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5169 LPFC_SLI4_MBX_EMBED
);
5175 if (!phba
->sli4_hba
.intr_enable
)
5176 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5178 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5179 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5186 rsrc_info
= &mbox
->u
.mqe
.un
.rsrc_extent_info
;
5187 if (bf_get(lpfc_mbox_hdr_status
,
5188 &rsrc_info
->header
.cfg_shdr
.response
)) {
5189 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5190 "2930 Failed to get resource extents "
5191 "Status 0x%x Add'l Status 0x%x\n",
5192 bf_get(lpfc_mbox_hdr_status
,
5193 &rsrc_info
->header
.cfg_shdr
.response
),
5194 bf_get(lpfc_mbox_hdr_add_status
,
5195 &rsrc_info
->header
.cfg_shdr
.response
));
5200 *extnt_count
= bf_get(lpfc_mbx_get_rsrc_extent_info_cnt
,
5202 *extnt_size
= bf_get(lpfc_mbx_get_rsrc_extent_info_size
,
5205 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
5206 "3162 Retrieved extents type-%d from port: count:%d, "
5207 "size:%d\n", type
, *extnt_count
, *extnt_size
);
5210 mempool_free(mbox
, phba
->mbox_mem_pool
);
5215 * lpfc_sli4_chk_avail_extnt_rsrc - Check for available SLI4 resource extents.
5216 * @phba: Pointer to HBA context object.
5217 * @type: The extent type to check.
5219 * This function reads the current available extents from the port and checks
5220 * if the extent count or extent size has changed since the last access.
5221 * Callers use this routine post port reset to understand if there is a
5222 * extent reprovisioning requirement.
5225 * -Error: error indicates problem.
5226 * 1: Extent count or size has changed.
5230 lpfc_sli4_chk_avail_extnt_rsrc(struct lpfc_hba
*phba
, uint16_t type
)
5232 uint16_t curr_ext_cnt
, rsrc_ext_cnt
;
5233 uint16_t size_diff
, rsrc_ext_size
;
5235 struct lpfc_rsrc_blks
*rsrc_entry
;
5236 struct list_head
*rsrc_blk_list
= NULL
;
5240 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5247 case LPFC_RSC_TYPE_FCOE_RPI
:
5248 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5250 case LPFC_RSC_TYPE_FCOE_VPI
:
5251 rsrc_blk_list
= &phba
->lpfc_vpi_blk_list
;
5253 case LPFC_RSC_TYPE_FCOE_XRI
:
5254 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5256 case LPFC_RSC_TYPE_FCOE_VFI
:
5257 rsrc_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5263 list_for_each_entry(rsrc_entry
, rsrc_blk_list
, list
) {
5265 if (rsrc_entry
->rsrc_size
!= rsrc_ext_size
)
5269 if (curr_ext_cnt
!= rsrc_ext_cnt
|| size_diff
!= 0)
5276 * lpfc_sli4_cfg_post_extnts -
5277 * @phba: Pointer to HBA context object.
5278 * @extnt_cnt - number of available extents.
5279 * @type - the extent type (rpi, xri, vfi, vpi).
5280 * @emb - buffer to hold either MBX_EMBED or MBX_NEMBED operation.
5281 * @mbox - pointer to the caller's allocated mailbox structure.
5283 * This function executes the extents allocation request. It also
5284 * takes care of the amount of memory needed to allocate or get the
5285 * allocated extents. It is the caller's responsibility to evaluate
5289 * -Error: Error value describes the condition found.
5293 lpfc_sli4_cfg_post_extnts(struct lpfc_hba
*phba
, uint16_t extnt_cnt
,
5294 uint16_t type
, bool *emb
, LPFC_MBOXQ_t
*mbox
)
5299 uint32_t alloc_len
, mbox_tmo
;
5301 /* Calculate the total requested length of the dma memory */
5302 req_len
= extnt_cnt
* sizeof(uint16_t);
5305 * Calculate the size of an embedded mailbox. The uint32_t
5306 * accounts for extents-specific word.
5308 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
5312 * Presume the allocation and response will fit into an embedded
5313 * mailbox. If not true, reconfigure to a non-embedded mailbox.
5315 *emb
= LPFC_SLI4_MBX_EMBED
;
5316 if (req_len
> emb_len
) {
5317 req_len
= extnt_cnt
* sizeof(uint16_t) +
5318 sizeof(union lpfc_sli4_cfg_shdr
) +
5320 *emb
= LPFC_SLI4_MBX_NEMBED
;
5323 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5324 LPFC_MBOX_OPCODE_ALLOC_RSRC_EXTENT
,
5326 if (alloc_len
< req_len
) {
5327 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
5328 "2982 Allocated DMA memory size (x%x) is "
5329 "less than the requested DMA memory "
5330 "size (x%x)\n", alloc_len
, req_len
);
5333 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, extnt_cnt
, type
, *emb
);
5337 if (!phba
->sli4_hba
.intr_enable
)
5338 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5340 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5341 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5350 * lpfc_sli4_alloc_extent - Allocate an SLI4 resource extent.
5351 * @phba: Pointer to HBA context object.
5352 * @type: The resource extent type to allocate.
5354 * This function allocates the number of elements for the specified
5358 lpfc_sli4_alloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5361 uint16_t rsrc_id_cnt
, rsrc_cnt
, rsrc_size
;
5362 uint16_t rsrc_id
, rsrc_start
, j
, k
;
5365 unsigned long longs
;
5366 unsigned long *bmask
;
5367 struct lpfc_rsrc_blks
*rsrc_blks
;
5370 struct lpfc_id_range
*id_array
= NULL
;
5371 void *virtaddr
= NULL
;
5372 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
5373 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
5374 struct list_head
*ext_blk_list
;
5376 rc
= lpfc_sli4_get_avail_extnt_rsrc(phba
, type
,
5382 if ((rsrc_cnt
== 0) || (rsrc_size
== 0)) {
5383 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5384 "3009 No available Resource Extents "
5385 "for resource type 0x%x: Count: 0x%x, "
5386 "Size 0x%x\n", type
, rsrc_cnt
,
5391 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_INIT
| LOG_SLI
,
5392 "2903 Post resource extents type-0x%x: "
5393 "count:%d, size %d\n", type
, rsrc_cnt
, rsrc_size
);
5395 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5399 rc
= lpfc_sli4_cfg_post_extnts(phba
, rsrc_cnt
, type
, &emb
, mbox
);
5406 * Figure out where the response is located. Then get local pointers
5407 * to the response data. The port does not guarantee to respond to
5408 * all extents counts request so update the local variable with the
5409 * allocated count from the port.
5411 if (emb
== LPFC_SLI4_MBX_EMBED
) {
5412 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
5413 id_array
= &rsrc_ext
->u
.rsp
.id
[0];
5414 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
5416 virtaddr
= mbox
->sge_array
->addr
[0];
5417 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
5418 rsrc_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
5419 id_array
= &n_rsrc
->id
;
5422 longs
= ((rsrc_cnt
* rsrc_size
) + BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5423 rsrc_id_cnt
= rsrc_cnt
* rsrc_size
;
5426 * Based on the resource size and count, correct the base and max
5429 length
= sizeof(struct lpfc_rsrc_blks
);
5431 case LPFC_RSC_TYPE_FCOE_RPI
:
5432 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5433 sizeof(unsigned long),
5435 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5439 phba
->sli4_hba
.rpi_ids
= kzalloc(rsrc_id_cnt
*
5442 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5443 kfree(phba
->sli4_hba
.rpi_bmask
);
5449 * The next_rpi was initialized with the maximum available
5450 * count but the port may allocate a smaller number. Catch
5451 * that case and update the next_rpi.
5453 phba
->sli4_hba
.next_rpi
= rsrc_id_cnt
;
5455 /* Initialize local ptrs for common extent processing later. */
5456 bmask
= phba
->sli4_hba
.rpi_bmask
;
5457 ids
= phba
->sli4_hba
.rpi_ids
;
5458 ext_blk_list
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
5460 case LPFC_RSC_TYPE_FCOE_VPI
:
5461 phba
->vpi_bmask
= kzalloc(longs
*
5462 sizeof(unsigned long),
5464 if (unlikely(!phba
->vpi_bmask
)) {
5468 phba
->vpi_ids
= kzalloc(rsrc_id_cnt
*
5471 if (unlikely(!phba
->vpi_ids
)) {
5472 kfree(phba
->vpi_bmask
);
5477 /* Initialize local ptrs for common extent processing later. */
5478 bmask
= phba
->vpi_bmask
;
5479 ids
= phba
->vpi_ids
;
5480 ext_blk_list
= &phba
->lpfc_vpi_blk_list
;
5482 case LPFC_RSC_TYPE_FCOE_XRI
:
5483 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5484 sizeof(unsigned long),
5486 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5490 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5491 phba
->sli4_hba
.xri_ids
= kzalloc(rsrc_id_cnt
*
5494 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5495 kfree(phba
->sli4_hba
.xri_bmask
);
5500 /* Initialize local ptrs for common extent processing later. */
5501 bmask
= phba
->sli4_hba
.xri_bmask
;
5502 ids
= phba
->sli4_hba
.xri_ids
;
5503 ext_blk_list
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
5505 case LPFC_RSC_TYPE_FCOE_VFI
:
5506 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5507 sizeof(unsigned long),
5509 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5513 phba
->sli4_hba
.vfi_ids
= kzalloc(rsrc_id_cnt
*
5516 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5517 kfree(phba
->sli4_hba
.vfi_bmask
);
5522 /* Initialize local ptrs for common extent processing later. */
5523 bmask
= phba
->sli4_hba
.vfi_bmask
;
5524 ids
= phba
->sli4_hba
.vfi_ids
;
5525 ext_blk_list
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
5528 /* Unsupported Opcode. Fail call. */
5532 ext_blk_list
= NULL
;
5537 * Complete initializing the extent configuration with the
5538 * allocated ids assigned to this function. The bitmask serves
5539 * as an index into the array and manages the available ids. The
5540 * array just stores the ids communicated to the port via the wqes.
5542 for (i
= 0, j
= 0, k
= 0; i
< rsrc_cnt
; i
++) {
5544 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_0
,
5547 rsrc_id
= bf_get(lpfc_mbx_rsrc_id_word4_1
,
5550 rsrc_blks
= kzalloc(length
, GFP_KERNEL
);
5551 if (unlikely(!rsrc_blks
)) {
5557 rsrc_blks
->rsrc_start
= rsrc_id
;
5558 rsrc_blks
->rsrc_size
= rsrc_size
;
5559 list_add_tail(&rsrc_blks
->list
, ext_blk_list
);
5560 rsrc_start
= rsrc_id
;
5561 if ((type
== LPFC_RSC_TYPE_FCOE_XRI
) && (j
== 0))
5562 phba
->sli4_hba
.scsi_xri_start
= rsrc_start
+
5563 lpfc_sli4_get_els_iocb_cnt(phba
);
5565 while (rsrc_id
< (rsrc_start
+ rsrc_size
)) {
5570 /* Entire word processed. Get next word.*/
5575 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
5580 * lpfc_sli4_dealloc_extent - Deallocate an SLI4 resource extent.
5581 * @phba: Pointer to HBA context object.
5582 * @type: the extent's type.
5584 * This function deallocates all extents of a particular resource type.
5585 * SLI4 does not allow for deallocating a particular extent range. It
5586 * is the caller's responsibility to release all kernel memory resources.
5589 lpfc_sli4_dealloc_extent(struct lpfc_hba
*phba
, uint16_t type
)
5592 uint32_t length
, mbox_tmo
= 0;
5594 struct lpfc_mbx_dealloc_rsrc_extents
*dealloc_rsrc
;
5595 struct lpfc_rsrc_blks
*rsrc_blk
, *rsrc_blk_next
;
5597 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
5602 * This function sends an embedded mailbox because it only sends the
5603 * the resource type. All extents of this type are released by the
5606 length
= (sizeof(struct lpfc_mbx_dealloc_rsrc_extents
) -
5607 sizeof(struct lpfc_sli4_cfg_mhdr
));
5608 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5609 LPFC_MBOX_OPCODE_DEALLOC_RSRC_EXTENT
,
5610 length
, LPFC_SLI4_MBX_EMBED
);
5612 /* Send an extents count of 0 - the dealloc doesn't use it. */
5613 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, 0, type
,
5614 LPFC_SLI4_MBX_EMBED
);
5619 if (!phba
->sli4_hba
.intr_enable
)
5620 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
5622 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
5623 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
5630 dealloc_rsrc
= &mbox
->u
.mqe
.un
.dealloc_rsrc_extents
;
5631 if (bf_get(lpfc_mbox_hdr_status
,
5632 &dealloc_rsrc
->header
.cfg_shdr
.response
)) {
5633 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
5634 "2919 Failed to release resource extents "
5635 "for type %d - Status 0x%x Add'l Status 0x%x. "
5636 "Resource memory not released.\n",
5638 bf_get(lpfc_mbox_hdr_status
,
5639 &dealloc_rsrc
->header
.cfg_shdr
.response
),
5640 bf_get(lpfc_mbox_hdr_add_status
,
5641 &dealloc_rsrc
->header
.cfg_shdr
.response
));
5646 /* Release kernel memory resources for the specific type. */
5648 case LPFC_RSC_TYPE_FCOE_VPI
:
5649 kfree(phba
->vpi_bmask
);
5650 kfree(phba
->vpi_ids
);
5651 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5652 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5653 &phba
->lpfc_vpi_blk_list
, list
) {
5654 list_del_init(&rsrc_blk
->list
);
5657 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5659 case LPFC_RSC_TYPE_FCOE_XRI
:
5660 kfree(phba
->sli4_hba
.xri_bmask
);
5661 kfree(phba
->sli4_hba
.xri_ids
);
5662 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5663 &phba
->sli4_hba
.lpfc_xri_blk_list
, list
) {
5664 list_del_init(&rsrc_blk
->list
);
5668 case LPFC_RSC_TYPE_FCOE_VFI
:
5669 kfree(phba
->sli4_hba
.vfi_bmask
);
5670 kfree(phba
->sli4_hba
.vfi_ids
);
5671 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5672 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5673 &phba
->sli4_hba
.lpfc_vfi_blk_list
, list
) {
5674 list_del_init(&rsrc_blk
->list
);
5678 case LPFC_RSC_TYPE_FCOE_RPI
:
5679 /* RPI bitmask and physical id array are cleaned up earlier. */
5680 list_for_each_entry_safe(rsrc_blk
, rsrc_blk_next
,
5681 &phba
->sli4_hba
.lpfc_rpi_blk_list
, list
) {
5682 list_del_init(&rsrc_blk
->list
);
5690 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
5693 mempool_free(mbox
, phba
->mbox_mem_pool
);
5698 lpfc_set_features(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
,
5703 len
= sizeof(struct lpfc_mbx_set_feature
) -
5704 sizeof(struct lpfc_sli4_cfg_mhdr
);
5705 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
5706 LPFC_MBOX_OPCODE_SET_FEATURES
, len
,
5707 LPFC_SLI4_MBX_EMBED
);
5710 case LPFC_SET_UE_RECOVERY
:
5711 bf_set(lpfc_mbx_set_feature_UER
,
5712 &mbox
->u
.mqe
.un
.set_feature
, 1);
5713 mbox
->u
.mqe
.un
.set_feature
.feature
= LPFC_SET_UE_RECOVERY
;
5714 mbox
->u
.mqe
.un
.set_feature
.param_len
= 8;
5716 case LPFC_SET_MDS_DIAGS
:
5717 bf_set(lpfc_mbx_set_feature_mds
,
5718 &mbox
->u
.mqe
.un
.set_feature
, 1);
5719 bf_set(lpfc_mbx_set_feature_mds_deep_loopbk
,
5720 &mbox
->u
.mqe
.un
.set_feature
, 0);
5721 mbox
->u
.mqe
.un
.set_feature
.feature
= LPFC_SET_MDS_DIAGS
;
5722 mbox
->u
.mqe
.un
.set_feature
.param_len
= 8;
5730 * lpfc_sli4_alloc_resource_identifiers - Allocate all SLI4 resource extents.
5731 * @phba: Pointer to HBA context object.
5733 * This function allocates all SLI4 resource identifiers.
5736 lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba
*phba
)
5738 int i
, rc
, error
= 0;
5739 uint16_t count
, base
;
5740 unsigned long longs
;
5742 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
5743 phba
->sli4_hba
.next_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5744 if (phba
->sli4_hba
.extents_in_use
) {
5746 * The port supports resource extents. The XRI, VPI, VFI, RPI
5747 * resource extent count must be read and allocated before
5748 * provisioning the resource id arrays.
5750 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5751 LPFC_IDX_RSRC_RDY
) {
5753 * Extent-based resources are set - the driver could
5754 * be in a port reset. Figure out if any corrective
5755 * actions need to be taken.
5757 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5758 LPFC_RSC_TYPE_FCOE_VFI
);
5761 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5762 LPFC_RSC_TYPE_FCOE_VPI
);
5765 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5766 LPFC_RSC_TYPE_FCOE_XRI
);
5769 rc
= lpfc_sli4_chk_avail_extnt_rsrc(phba
,
5770 LPFC_RSC_TYPE_FCOE_RPI
);
5775 * It's possible that the number of resources
5776 * provided to this port instance changed between
5777 * resets. Detect this condition and reallocate
5778 * resources. Otherwise, there is no action.
5781 lpfc_printf_log(phba
, KERN_INFO
,
5782 LOG_MBOX
| LOG_INIT
,
5783 "2931 Detected extent resource "
5784 "change. Reallocating all "
5786 rc
= lpfc_sli4_dealloc_extent(phba
,
5787 LPFC_RSC_TYPE_FCOE_VFI
);
5788 rc
= lpfc_sli4_dealloc_extent(phba
,
5789 LPFC_RSC_TYPE_FCOE_VPI
);
5790 rc
= lpfc_sli4_dealloc_extent(phba
,
5791 LPFC_RSC_TYPE_FCOE_XRI
);
5792 rc
= lpfc_sli4_dealloc_extent(phba
,
5793 LPFC_RSC_TYPE_FCOE_RPI
);
5798 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5802 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5806 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5810 rc
= lpfc_sli4_alloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5813 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5818 * The port does not support resource extents. The XRI, VPI,
5819 * VFI, RPI resource ids were determined from READ_CONFIG.
5820 * Just allocate the bitmasks and provision the resource id
5821 * arrays. If a port reset is active, the resources don't
5822 * need any action - just exit.
5824 if (bf_get(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) ==
5825 LPFC_IDX_RSRC_RDY
) {
5826 lpfc_sli4_dealloc_resource_identifiers(phba
);
5827 lpfc_sli4_remove_rpis(phba
);
5830 count
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
5832 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5833 "3279 Invalid provisioning of "
5838 base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
5839 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5840 phba
->sli4_hba
.rpi_bmask
= kzalloc(longs
*
5841 sizeof(unsigned long),
5843 if (unlikely(!phba
->sli4_hba
.rpi_bmask
)) {
5847 phba
->sli4_hba
.rpi_ids
= kzalloc(count
*
5850 if (unlikely(!phba
->sli4_hba
.rpi_ids
)) {
5852 goto free_rpi_bmask
;
5855 for (i
= 0; i
< count
; i
++)
5856 phba
->sli4_hba
.rpi_ids
[i
] = base
+ i
;
5859 count
= phba
->sli4_hba
.max_cfg_param
.max_vpi
;
5861 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5862 "3280 Invalid provisioning of "
5867 base
= phba
->sli4_hba
.max_cfg_param
.vpi_base
;
5868 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5869 phba
->vpi_bmask
= kzalloc(longs
*
5870 sizeof(unsigned long),
5872 if (unlikely(!phba
->vpi_bmask
)) {
5876 phba
->vpi_ids
= kzalloc(count
*
5879 if (unlikely(!phba
->vpi_ids
)) {
5881 goto free_vpi_bmask
;
5884 for (i
= 0; i
< count
; i
++)
5885 phba
->vpi_ids
[i
] = base
+ i
;
5888 count
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
5890 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5891 "3281 Invalid provisioning of "
5896 base
= phba
->sli4_hba
.max_cfg_param
.xri_base
;
5897 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5898 phba
->sli4_hba
.xri_bmask
= kzalloc(longs
*
5899 sizeof(unsigned long),
5901 if (unlikely(!phba
->sli4_hba
.xri_bmask
)) {
5905 phba
->sli4_hba
.max_cfg_param
.xri_used
= 0;
5906 phba
->sli4_hba
.xri_ids
= kzalloc(count
*
5909 if (unlikely(!phba
->sli4_hba
.xri_ids
)) {
5911 goto free_xri_bmask
;
5914 for (i
= 0; i
< count
; i
++)
5915 phba
->sli4_hba
.xri_ids
[i
] = base
+ i
;
5918 count
= phba
->sli4_hba
.max_cfg_param
.max_vfi
;
5920 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
5921 "3282 Invalid provisioning of "
5926 base
= phba
->sli4_hba
.max_cfg_param
.vfi_base
;
5927 longs
= (count
+ BITS_PER_LONG
- 1) / BITS_PER_LONG
;
5928 phba
->sli4_hba
.vfi_bmask
= kzalloc(longs
*
5929 sizeof(unsigned long),
5931 if (unlikely(!phba
->sli4_hba
.vfi_bmask
)) {
5935 phba
->sli4_hba
.vfi_ids
= kzalloc(count
*
5938 if (unlikely(!phba
->sli4_hba
.vfi_ids
)) {
5940 goto free_vfi_bmask
;
5943 for (i
= 0; i
< count
; i
++)
5944 phba
->sli4_hba
.vfi_ids
[i
] = base
+ i
;
5947 * Mark all resources ready. An HBA reset doesn't need
5948 * to reset the initialization.
5950 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
5956 kfree(phba
->sli4_hba
.vfi_bmask
);
5957 phba
->sli4_hba
.vfi_bmask
= NULL
;
5959 kfree(phba
->sli4_hba
.xri_ids
);
5960 phba
->sli4_hba
.xri_ids
= NULL
;
5962 kfree(phba
->sli4_hba
.xri_bmask
);
5963 phba
->sli4_hba
.xri_bmask
= NULL
;
5965 kfree(phba
->vpi_ids
);
5966 phba
->vpi_ids
= NULL
;
5968 kfree(phba
->vpi_bmask
);
5969 phba
->vpi_bmask
= NULL
;
5971 kfree(phba
->sli4_hba
.rpi_ids
);
5972 phba
->sli4_hba
.rpi_ids
= NULL
;
5974 kfree(phba
->sli4_hba
.rpi_bmask
);
5975 phba
->sli4_hba
.rpi_bmask
= NULL
;
5981 * lpfc_sli4_dealloc_resource_identifiers - Deallocate all SLI4 resource extents.
5982 * @phba: Pointer to HBA context object.
5984 * This function allocates the number of elements for the specified
5988 lpfc_sli4_dealloc_resource_identifiers(struct lpfc_hba
*phba
)
5990 if (phba
->sli4_hba
.extents_in_use
) {
5991 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VPI
);
5992 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_RPI
);
5993 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_XRI
);
5994 lpfc_sli4_dealloc_extent(phba
, LPFC_RSC_TYPE_FCOE_VFI
);
5996 kfree(phba
->vpi_bmask
);
5997 phba
->sli4_hba
.max_cfg_param
.vpi_used
= 0;
5998 kfree(phba
->vpi_ids
);
5999 bf_set(lpfc_vpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
6000 kfree(phba
->sli4_hba
.xri_bmask
);
6001 kfree(phba
->sli4_hba
.xri_ids
);
6002 kfree(phba
->sli4_hba
.vfi_bmask
);
6003 kfree(phba
->sli4_hba
.vfi_ids
);
6004 bf_set(lpfc_vfi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
6005 bf_set(lpfc_idx_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
6012 * lpfc_sli4_get_allocated_extnts - Get the port's allocated extents.
6013 * @phba: Pointer to HBA context object.
6014 * @type: The resource extent type.
6015 * @extnt_count: buffer to hold port extent count response
6016 * @extnt_size: buffer to hold port extent size response.
6018 * This function calls the port to read the host allocated extents
6019 * for a particular type.
6022 lpfc_sli4_get_allocated_extnts(struct lpfc_hba
*phba
, uint16_t type
,
6023 uint16_t *extnt_cnt
, uint16_t *extnt_size
)
6027 uint16_t curr_blks
= 0;
6028 uint32_t req_len
, emb_len
;
6029 uint32_t alloc_len
, mbox_tmo
;
6030 struct list_head
*blk_list_head
;
6031 struct lpfc_rsrc_blks
*rsrc_blk
;
6033 void *virtaddr
= NULL
;
6034 struct lpfc_mbx_nembed_rsrc_extent
*n_rsrc
;
6035 struct lpfc_mbx_alloc_rsrc_extents
*rsrc_ext
;
6036 union lpfc_sli4_cfg_shdr
*shdr
;
6039 case LPFC_RSC_TYPE_FCOE_VPI
:
6040 blk_list_head
= &phba
->lpfc_vpi_blk_list
;
6042 case LPFC_RSC_TYPE_FCOE_XRI
:
6043 blk_list_head
= &phba
->sli4_hba
.lpfc_xri_blk_list
;
6045 case LPFC_RSC_TYPE_FCOE_VFI
:
6046 blk_list_head
= &phba
->sli4_hba
.lpfc_vfi_blk_list
;
6048 case LPFC_RSC_TYPE_FCOE_RPI
:
6049 blk_list_head
= &phba
->sli4_hba
.lpfc_rpi_blk_list
;
6055 /* Count the number of extents currently allocatd for this type. */
6056 list_for_each_entry(rsrc_blk
, blk_list_head
, list
) {
6057 if (curr_blks
== 0) {
6059 * The GET_ALLOCATED mailbox does not return the size,
6060 * just the count. The size should be just the size
6061 * stored in the current allocated block and all sizes
6062 * for an extent type are the same so set the return
6065 *extnt_size
= rsrc_blk
->rsrc_size
;
6071 * Calculate the size of an embedded mailbox. The uint32_t
6072 * accounts for extents-specific word.
6074 emb_len
= sizeof(MAILBOX_t
) - sizeof(struct mbox_header
) -
6078 * Presume the allocation and response will fit into an embedded
6079 * mailbox. If not true, reconfigure to a non-embedded mailbox.
6081 emb
= LPFC_SLI4_MBX_EMBED
;
6083 if (req_len
> emb_len
) {
6084 req_len
= curr_blks
* sizeof(uint16_t) +
6085 sizeof(union lpfc_sli4_cfg_shdr
) +
6087 emb
= LPFC_SLI4_MBX_NEMBED
;
6090 mbox
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6093 memset(mbox
, 0, sizeof(LPFC_MBOXQ_t
));
6095 alloc_len
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6096 LPFC_MBOX_OPCODE_GET_ALLOC_RSRC_EXTENT
,
6098 if (alloc_len
< req_len
) {
6099 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6100 "2983 Allocated DMA memory size (x%x) is "
6101 "less than the requested DMA memory "
6102 "size (x%x)\n", alloc_len
, req_len
);
6106 rc
= lpfc_sli4_mbox_rsrc_extent(phba
, mbox
, curr_blks
, type
, emb
);
6112 if (!phba
->sli4_hba
.intr_enable
)
6113 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
6115 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
6116 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
6125 * Figure out where the response is located. Then get local pointers
6126 * to the response data. The port does not guarantee to respond to
6127 * all extents counts request so update the local variable with the
6128 * allocated count from the port.
6130 if (emb
== LPFC_SLI4_MBX_EMBED
) {
6131 rsrc_ext
= &mbox
->u
.mqe
.un
.alloc_rsrc_extents
;
6132 shdr
= &rsrc_ext
->header
.cfg_shdr
;
6133 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, &rsrc_ext
->u
.rsp
);
6135 virtaddr
= mbox
->sge_array
->addr
[0];
6136 n_rsrc
= (struct lpfc_mbx_nembed_rsrc_extent
*) virtaddr
;
6137 shdr
= &n_rsrc
->cfg_shdr
;
6138 *extnt_cnt
= bf_get(lpfc_mbx_rsrc_cnt
, n_rsrc
);
6141 if (bf_get(lpfc_mbox_hdr_status
, &shdr
->response
)) {
6142 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
6143 "2984 Failed to read allocated resources "
6144 "for type %d - Status 0x%x Add'l Status 0x%x.\n",
6146 bf_get(lpfc_mbox_hdr_status
, &shdr
->response
),
6147 bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
));
6152 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
6157 * lpfc_sli4_repost_els_sgl_list - Repsot the els buffers sgl pages as block
6158 * @phba: pointer to lpfc hba data structure.
6160 * This routine walks the list of els buffers that have been allocated and
6161 * repost them to the port by using SGL block post. This is needed after a
6162 * pci_function_reset/warm_start or start. It attempts to construct blocks
6163 * of els buffer sgls which contains contiguous xris and uses the non-embedded
6164 * SGL block post mailbox commands to post them to the port. For single els
6165 * buffer sgl with non-contiguous xri, if any, it shall use embedded SGL post
6166 * mailbox command for posting.
6168 * Returns: 0 = success, non-zero failure.
6171 lpfc_sli4_repost_els_sgl_list(struct lpfc_hba
*phba
)
6173 struct lpfc_sglq
*sglq_entry
= NULL
;
6174 struct lpfc_sglq
*sglq_entry_next
= NULL
;
6175 struct lpfc_sglq
*sglq_entry_first
= NULL
;
6176 int status
, total_cnt
, post_cnt
= 0, num_posted
= 0, block_cnt
= 0;
6177 int last_xritag
= NO_XRI
;
6178 struct lpfc_sli_ring
*pring
;
6179 LIST_HEAD(prep_sgl_list
);
6180 LIST_HEAD(blck_sgl_list
);
6181 LIST_HEAD(allc_sgl_list
);
6182 LIST_HEAD(post_sgl_list
);
6183 LIST_HEAD(free_sgl_list
);
6185 pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
6186 spin_lock_irq(&phba
->hbalock
);
6187 spin_lock(&pring
->ring_lock
);
6188 list_splice_init(&phba
->sli4_hba
.lpfc_sgl_list
, &allc_sgl_list
);
6189 spin_unlock(&pring
->ring_lock
);
6190 spin_unlock_irq(&phba
->hbalock
);
6192 total_cnt
= phba
->sli4_hba
.els_xri_cnt
;
6193 list_for_each_entry_safe(sglq_entry
, sglq_entry_next
,
6194 &allc_sgl_list
, list
) {
6195 list_del_init(&sglq_entry
->list
);
6197 if ((last_xritag
!= NO_XRI
) &&
6198 (sglq_entry
->sli4_xritag
!= last_xritag
+ 1)) {
6199 /* a hole in xri block, form a sgl posting block */
6200 list_splice_init(&prep_sgl_list
, &blck_sgl_list
);
6201 post_cnt
= block_cnt
- 1;
6202 /* prepare list for next posting block */
6203 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6206 /* prepare list for next posting block */
6207 list_add_tail(&sglq_entry
->list
, &prep_sgl_list
);
6208 /* enough sgls for non-embed sgl mbox command */
6209 if (block_cnt
== LPFC_NEMBED_MBOX_SGL_CNT
) {
6210 list_splice_init(&prep_sgl_list
,
6212 post_cnt
= block_cnt
;
6218 /* keep track of last sgl's xritag */
6219 last_xritag
= sglq_entry
->sli4_xritag
;
6221 /* end of repost sgl list condition for els buffers */
6222 if (num_posted
== phba
->sli4_hba
.els_xri_cnt
) {
6223 if (post_cnt
== 0) {
6224 list_splice_init(&prep_sgl_list
,
6226 post_cnt
= block_cnt
;
6227 } else if (block_cnt
== 1) {
6228 status
= lpfc_sli4_post_sgl(phba
,
6229 sglq_entry
->phys
, 0,
6230 sglq_entry
->sli4_xritag
);
6232 /* successful, put sgl to posted list */
6233 list_add_tail(&sglq_entry
->list
,
6236 /* Failure, put sgl to free list */
6237 lpfc_printf_log(phba
, KERN_WARNING
,
6239 "3159 Failed to post els "
6240 "sgl, xritag:x%x\n",
6241 sglq_entry
->sli4_xritag
);
6242 list_add_tail(&sglq_entry
->list
,
6249 /* continue until a nembed page worth of sgls */
6253 /* post the els buffer list sgls as a block */
6254 status
= lpfc_sli4_post_els_sgl_list(phba
, &blck_sgl_list
,
6258 /* success, put sgl list to posted sgl list */
6259 list_splice_init(&blck_sgl_list
, &post_sgl_list
);
6261 /* Failure, put sgl list to free sgl list */
6262 sglq_entry_first
= list_first_entry(&blck_sgl_list
,
6265 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
6266 "3160 Failed to post els sgl-list, "
6268 sglq_entry_first
->sli4_xritag
,
6269 (sglq_entry_first
->sli4_xritag
+
6271 list_splice_init(&blck_sgl_list
, &free_sgl_list
);
6272 total_cnt
-= post_cnt
;
6275 /* don't reset xirtag due to hole in xri block */
6277 last_xritag
= NO_XRI
;
6279 /* reset els sgl post count for next round of posting */
6282 /* update the number of XRIs posted for ELS */
6283 phba
->sli4_hba
.els_xri_cnt
= total_cnt
;
6285 /* free the els sgls failed to post */
6286 lpfc_free_sgl_list(phba
, &free_sgl_list
);
6288 /* push els sgls posted to the availble list */
6289 if (!list_empty(&post_sgl_list
)) {
6290 spin_lock_irq(&phba
->hbalock
);
6291 spin_lock(&pring
->ring_lock
);
6292 list_splice_init(&post_sgl_list
,
6293 &phba
->sli4_hba
.lpfc_sgl_list
);
6294 spin_unlock(&pring
->ring_lock
);
6295 spin_unlock_irq(&phba
->hbalock
);
6297 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6298 "3161 Failure to post els sgl to port.\n");
6305 lpfc_set_host_data(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
6309 len
= sizeof(struct lpfc_mbx_set_host_data
) -
6310 sizeof(struct lpfc_sli4_cfg_mhdr
);
6311 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
6312 LPFC_MBOX_OPCODE_SET_HOST_DATA
, len
,
6313 LPFC_SLI4_MBX_EMBED
);
6315 mbox
->u
.mqe
.un
.set_host_data
.param_id
= LPFC_SET_HOST_OS_DRIVER_VERSION
;
6316 mbox
->u
.mqe
.un
.set_host_data
.param_len
= 8;
6317 snprintf(mbox
->u
.mqe
.un
.set_host_data
.data
,
6318 LPFC_HOST_OS_DRIVER_VERSION_SIZE
,
6319 "Linux %s v"LPFC_DRIVER_VERSION
,
6320 (phba
->hba_flag
& HBA_FCOE_MODE
) ? "FCoE" : "FC");
6324 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
6325 * @phba: Pointer to HBA context object.
6327 * This function is the main SLI4 device intialization PCI function. This
6328 * function is called by the HBA intialization code, HBA reset code and
6329 * HBA error attention handler code. Caller is not required to hold any
6333 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
6336 LPFC_MBOXQ_t
*mboxq
;
6337 struct lpfc_mqe
*mqe
;
6340 uint32_t ftr_rsp
= 0;
6341 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
6342 struct lpfc_vport
*vport
= phba
->pport
;
6343 struct lpfc_dmabuf
*mp
;
6345 /* Perform a PCI function reset to start from clean */
6346 rc
= lpfc_pci_function_reset(phba
);
6350 /* Check the HBA Host Status Register for readyness */
6351 rc
= lpfc_sli4_post_status_check(phba
);
6355 spin_lock_irq(&phba
->hbalock
);
6356 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
6357 spin_unlock_irq(&phba
->hbalock
);
6361 * Allocate a single mailbox container for initializing the
6364 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
6368 /* Issue READ_REV to collect vpd and FW information. */
6369 vpd_size
= SLI4_PAGE_SIZE
;
6370 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
6376 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
6382 mqe
= &mboxq
->u
.mqe
;
6383 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
6384 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
)) {
6385 phba
->hba_flag
|= HBA_FCOE_MODE
;
6386 phba
->fcp_embed_io
= 0; /* SLI4 FC support only */
6388 phba
->hba_flag
&= ~HBA_FCOE_MODE
;
6391 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
6393 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
6395 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
6397 phba
->hba_flag
&= ~HBA_FCP_IOQ_FLUSH
;
6399 if (phba
->sli_rev
!= LPFC_SLI_REV4
) {
6400 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6401 "0376 READ_REV Error. SLI Level %d "
6402 "FCoE enabled %d\n",
6403 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_MODE
);
6410 * Continue initialization with default values even if driver failed
6411 * to read FCoE param config regions, only read parameters if the
6414 if (phba
->hba_flag
& HBA_FCOE_MODE
&&
6415 lpfc_sli4_read_fcoe_params(phba
))
6416 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_INIT
,
6417 "2570 Failed to read FCoE parameters\n");
6420 * Retrieve sli4 device physical port name, failure of doing it
6421 * is considered as non-fatal.
6423 rc
= lpfc_sli4_retrieve_pport_name(phba
);
6425 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6426 "3080 Successful retrieving SLI4 device "
6427 "physical port name: %s.\n", phba
->Port
);
6430 * Evaluate the read rev and vpd data. Populate the driver
6431 * state with the results. If this routine fails, the failure
6432 * is not fatal as the driver will use generic values.
6434 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
6435 if (unlikely(!rc
)) {
6436 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6437 "0377 Error %d parsing vpd. "
6438 "Using defaults.\n", rc
);
6443 /* Save information as VPD data */
6444 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
6445 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
6446 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
6447 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
6449 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
6451 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
6453 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
6455 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6456 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
6457 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
6458 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
6459 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
6460 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
6461 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
6462 "(%d):0380 READ_REV Status x%x "
6463 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
6464 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
6465 bf_get(lpfc_mqe_status
, mqe
),
6466 phba
->vpd
.rev
.opFwName
,
6467 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
6468 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
6470 /* Reset the DFT_LUN_Q_DEPTH to (max xri >> 3) */
6471 rc
= (phba
->sli4_hba
.max_cfg_param
.max_xri
>> 3);
6472 if (phba
->pport
->cfg_lun_queue_depth
> rc
) {
6473 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
6474 "3362 LUN queue depth changed from %d to %d\n",
6475 phba
->pport
->cfg_lun_queue_depth
, rc
);
6476 phba
->pport
->cfg_lun_queue_depth
= rc
;
6479 if (bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
) ==
6480 LPFC_SLI_INTF_IF_TYPE_0
) {
6481 lpfc_set_features(phba
, mboxq
, LPFC_SET_UE_RECOVERY
);
6482 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6483 if (rc
== MBX_SUCCESS
) {
6484 phba
->hba_flag
|= HBA_RECOVERABLE_UE
;
6485 /* Set 1Sec interval to detect UE */
6486 phba
->eratt_poll_interval
= 1;
6487 phba
->sli4_hba
.ue_to_sr
= bf_get(
6488 lpfc_mbx_set_feature_UESR
,
6489 &mboxq
->u
.mqe
.un
.set_feature
);
6490 phba
->sli4_hba
.ue_to_rp
= bf_get(
6491 lpfc_mbx_set_feature_UERP
,
6492 &mboxq
->u
.mqe
.un
.set_feature
);
6496 if (phba
->cfg_enable_mds_diags
&& phba
->mds_diags_support
) {
6497 /* Enable MDS Diagnostics only if the SLI Port supports it */
6498 lpfc_set_features(phba
, mboxq
, LPFC_SET_MDS_DIAGS
);
6499 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6500 if (rc
!= MBX_SUCCESS
)
6501 phba
->mds_diags_support
= 0;
6505 * Discover the port's supported feature set and match it against the
6508 lpfc_request_features(phba
, mboxq
);
6509 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6516 * The port must support FCP initiator mode as this is the
6517 * only mode running in the host.
6519 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
6520 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6521 "0378 No support for fcpi mode.\n");
6524 if (bf_get(lpfc_mbx_rq_ftr_rsp_perfh
, &mqe
->un
.req_ftrs
))
6525 phba
->sli3_options
|= LPFC_SLI4_PERFH_ENABLED
;
6527 phba
->sli3_options
&= ~LPFC_SLI4_PERFH_ENABLED
;
6529 * If the port cannot support the host's requested features
6530 * then turn off the global config parameters to disable the
6531 * feature in the driver. This is not a fatal error.
6533 phba
->sli3_options
&= ~LPFC_SLI3_BG_ENABLED
;
6534 if (phba
->cfg_enable_bg
) {
6535 if (bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
))
6536 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
6541 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
6542 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6546 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6547 "0379 Feature Mismatch Data: x%08x %08x "
6548 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
6549 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
6550 phba
->cfg_enable_npiv
, phba
->max_vpi
);
6551 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
6552 phba
->cfg_enable_bg
= 0;
6553 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
6554 phba
->cfg_enable_npiv
= 0;
6557 /* These SLI3 features are assumed in SLI4 */
6558 spin_lock_irq(&phba
->hbalock
);
6559 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
6560 spin_unlock_irq(&phba
->hbalock
);
6563 * Allocate all resources (xri,rpi,vpi,vfi) now. Subsequent
6564 * calls depends on these resources to complete port setup.
6566 rc
= lpfc_sli4_alloc_resource_identifiers(phba
);
6568 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6569 "2920 Failed to alloc Resource IDs "
6574 lpfc_set_host_data(phba
, mboxq
);
6576 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6578 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
6579 "2134 Failed to set host os driver version %x",
6583 /* Read the port's service parameters. */
6584 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
6586 phba
->link_state
= LPFC_HBA_ERROR
;
6591 mboxq
->vport
= vport
;
6592 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6593 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
6594 if (rc
== MBX_SUCCESS
) {
6595 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
6600 * This memory was allocated by the lpfc_read_sparam routine. Release
6601 * it to the mbuf pool.
6603 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
6605 mboxq
->context1
= NULL
;
6607 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6608 "0382 READ_SPARAM command failed "
6609 "status %d, mbxStatus x%x\n",
6610 rc
, bf_get(lpfc_mqe_status
, mqe
));
6611 phba
->link_state
= LPFC_HBA_ERROR
;
6616 lpfc_update_vport_wwn(vport
);
6618 /* Update the fc_host data structures with new wwn. */
6619 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
6620 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
6622 /* update host els and scsi xri-sgl sizes and mappings */
6623 rc
= lpfc_sli4_xri_sgl_update(phba
);
6625 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6626 "1400 Failed to update xri-sgl size and "
6627 "mapping: %d\n", rc
);
6631 /* register the els sgl pool to the port */
6632 rc
= lpfc_sli4_repost_els_sgl_list(phba
);
6634 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6635 "0582 Error %d during els sgl post "
6641 /* register the allocated scsi sgl pool to the port */
6642 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
6644 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6645 "0383 Error %d during scsi sgl post "
6647 /* Some Scsi buffers were moved to the abort scsi list */
6648 /* A pci function reset will repost them */
6653 /* Post the rpi header region to the device. */
6654 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
6656 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6657 "0393 Error %d during rpi post operation\n",
6662 lpfc_sli4_node_prep(phba
);
6664 /* Create all the SLI4 queues */
6665 rc
= lpfc_sli4_queue_create(phba
);
6667 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6668 "3089 Failed to allocate queues\n");
6670 goto out_stop_timers
;
6672 /* Set up all the queues to the device */
6673 rc
= lpfc_sli4_queue_setup(phba
);
6675 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6676 "0381 Error %d during queue setup.\n ", rc
);
6677 goto out_destroy_queue
;
6680 /* Arm the CQs and then EQs on device */
6681 lpfc_sli4_arm_cqeq_intr(phba
);
6683 /* Indicate device interrupt mode */
6684 phba
->sli4_hba
.intr_enable
= 1;
6686 /* Allow asynchronous mailbox command to go through */
6687 spin_lock_irq(&phba
->hbalock
);
6688 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
6689 spin_unlock_irq(&phba
->hbalock
);
6691 /* Post receive buffers to the device */
6692 lpfc_sli4_rb_setup(phba
);
6694 /* Reset HBA FCF states after HBA reset */
6695 phba
->fcf
.fcf_flag
= 0;
6696 phba
->fcf
.current_rec
.flag
= 0;
6698 /* Start the ELS watchdog timer */
6699 mod_timer(&vport
->els_tmofunc
,
6700 jiffies
+ msecs_to_jiffies(1000 * (phba
->fc_ratov
* 2)));
6702 /* Start heart beat timer */
6703 mod_timer(&phba
->hb_tmofunc
,
6704 jiffies
+ msecs_to_jiffies(1000 * LPFC_HB_MBOX_INTERVAL
));
6705 phba
->hb_outstanding
= 0;
6706 phba
->last_completion_time
= jiffies
;
6708 /* Start error attention (ERATT) polling timer */
6709 mod_timer(&phba
->eratt_poll
,
6710 jiffies
+ msecs_to_jiffies(1000 * phba
->eratt_poll_interval
));
6712 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
6713 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
6714 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
6716 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6717 "2829 This device supports "
6718 "Advanced Error Reporting (AER)\n");
6719 spin_lock_irq(&phba
->hbalock
);
6720 phba
->hba_flag
|= HBA_AER_ENABLED
;
6721 spin_unlock_irq(&phba
->hbalock
);
6723 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
6724 "2830 This device does not support "
6725 "Advanced Error Reporting (AER)\n");
6726 phba
->cfg_aer_support
= 0;
6731 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
6733 * The FC Port needs to register FCFI (index 0)
6735 lpfc_reg_fcfi(phba
, mboxq
);
6736 mboxq
->vport
= phba
->pport
;
6737 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6738 if (rc
!= MBX_SUCCESS
)
6739 goto out_unset_queue
;
6741 phba
->fcf
.fcfi
= bf_get(lpfc_reg_fcfi_fcfi
,
6742 &mboxq
->u
.mqe
.un
.reg_fcfi
);
6744 /* Check if the port is configured to be disabled */
6745 lpfc_sli_read_link_ste(phba
);
6749 * The port is ready, set the host's link state to LINK_DOWN
6750 * in preparation for link interrupts.
6752 spin_lock_irq(&phba
->hbalock
);
6753 phba
->link_state
= LPFC_LINK_DOWN
;
6754 spin_unlock_irq(&phba
->hbalock
);
6755 if (!(phba
->hba_flag
& HBA_FCOE_MODE
) &&
6756 (phba
->hba_flag
& LINK_DISABLED
)) {
6757 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6758 "3103 Adapter Link is disabled.\n");
6759 lpfc_down_link(phba
, mboxq
);
6760 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
6761 if (rc
!= MBX_SUCCESS
) {
6762 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_SLI
,
6763 "3104 Adapter failed to issue "
6764 "DOWN_LINK mbox cmd, rc:x%x\n", rc
);
6765 goto out_unset_queue
;
6767 } else if (phba
->cfg_suppress_link_up
== LPFC_INITIALIZE_LINK
) {
6768 /* don't perform init_link on SLI4 FC port loopback test */
6769 if (!(phba
->link_flag
& LS_LOOPBACK_MODE
)) {
6770 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
6772 goto out_unset_queue
;
6775 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6778 /* Unset all the queues set up in this routine when error out */
6779 lpfc_sli4_queue_unset(phba
);
6781 lpfc_sli4_queue_destroy(phba
);
6783 lpfc_stop_hba_timers(phba
);
6785 mempool_free(mboxq
, phba
->mbox_mem_pool
);
6790 * lpfc_mbox_timeout - Timeout call back function for mbox timer
6791 * @ptr: context object - pointer to hba structure.
6793 * This is the callback function for mailbox timer. The mailbox
6794 * timer is armed when a new mailbox command is issued and the timer
6795 * is deleted when the mailbox complete. The function is called by
6796 * the kernel timer code when a mailbox does not complete within
6797 * expected time. This function wakes up the worker thread to
6798 * process the mailbox timeout and returns. All the processing is
6799 * done by the worker thread function lpfc_mbox_timeout_handler.
6802 lpfc_mbox_timeout(unsigned long ptr
)
6804 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
6805 unsigned long iflag
;
6806 uint32_t tmo_posted
;
6808 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
6809 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
6811 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
6812 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
6815 lpfc_worker_wake_up(phba
);
6820 * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
6822 * @phba: Pointer to HBA context object.
6824 * This function checks if any mailbox completions are present on the mailbox
6828 lpfc_sli4_mbox_completions_pending(struct lpfc_hba
*phba
)
6832 struct lpfc_queue
*mcq
;
6833 struct lpfc_mcqe
*mcqe
;
6834 bool pending_completions
= false;
6836 if (unlikely(!phba
) || (phba
->sli_rev
!= LPFC_SLI_REV4
))
6839 /* Check for completions on mailbox completion queue */
6841 mcq
= phba
->sli4_hba
.mbx_cq
;
6842 idx
= mcq
->hba_index
;
6843 while (bf_get_le32(lpfc_cqe_valid
, mcq
->qe
[idx
].cqe
)) {
6844 mcqe
= (struct lpfc_mcqe
*)mcq
->qe
[idx
].cqe
;
6845 if (bf_get_le32(lpfc_trailer_completed
, mcqe
) &&
6846 (!bf_get_le32(lpfc_trailer_async
, mcqe
))) {
6847 pending_completions
= true;
6850 idx
= (idx
+ 1) % mcq
->entry_count
;
6851 if (mcq
->hba_index
== idx
)
6854 return pending_completions
;
6859 * lpfc_sli4_process_missed_mbox_completions - process mbox completions
6861 * @phba: Pointer to HBA context object.
6863 * For sli4, it is possible to miss an interrupt. As such mbox completions
6864 * maybe missed causing erroneous mailbox timeouts to occur. This function
6865 * checks to see if mbox completions are on the mailbox completion queue
6866 * and will process all the completions associated with the eq for the
6867 * mailbox completion queue.
6870 lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba
*phba
)
6874 struct lpfc_queue
*fpeq
= NULL
;
6875 struct lpfc_eqe
*eqe
;
6878 if (unlikely(!phba
) || (phba
->sli_rev
!= LPFC_SLI_REV4
))
6881 /* Find the eq associated with the mcq */
6883 if (phba
->sli4_hba
.hba_eq
)
6884 for (eqidx
= 0; eqidx
< phba
->cfg_fcp_io_channel
; eqidx
++)
6885 if (phba
->sli4_hba
.hba_eq
[eqidx
]->queue_id
==
6886 phba
->sli4_hba
.mbx_cq
->assoc_qid
) {
6887 fpeq
= phba
->sli4_hba
.hba_eq
[eqidx
];
6893 /* Turn off interrupts from this EQ */
6895 lpfc_sli4_eq_clr_intr(fpeq
);
6897 /* Check to see if a mbox completion is pending */
6899 mbox_pending
= lpfc_sli4_mbox_completions_pending(phba
);
6902 * If a mbox completion is pending, process all the events on EQ
6903 * associated with the mbox completion queue (this could include
6904 * mailbox commands, async events, els commands, receive queue data
6909 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
6910 lpfc_sli4_hba_handle_eqe(phba
, eqe
, eqidx
);
6911 fpeq
->EQ_processed
++;
6914 /* Always clear and re-arm the EQ */
6916 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
6918 return mbox_pending
;
6923 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
6924 * @phba: Pointer to HBA context object.
6926 * This function is called from worker thread when a mailbox command times out.
6927 * The caller is not required to hold any locks. This function will reset the
6928 * HBA and recover all the pending commands.
6931 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
6933 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
6934 MAILBOX_t
*mb
= NULL
;
6936 struct lpfc_sli
*psli
= &phba
->sli
;
6938 /* If the mailbox completed, process the completion and return */
6939 if (lpfc_sli4_process_missed_mbox_completions(phba
))
6944 /* Check the pmbox pointer first. There is a race condition
6945 * between the mbox timeout handler getting executed in the
6946 * worklist and the mailbox actually completing. When this
6947 * race condition occurs, the mbox_active will be NULL.
6949 spin_lock_irq(&phba
->hbalock
);
6950 if (pmbox
== NULL
) {
6951 lpfc_printf_log(phba
, KERN_WARNING
,
6953 "0353 Active Mailbox cleared - mailbox timeout "
6955 spin_unlock_irq(&phba
->hbalock
);
6959 /* Mbox cmd <mbxCommand> timeout */
6960 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6961 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
6963 phba
->pport
->port_state
,
6965 phba
->sli
.mbox_active
);
6966 spin_unlock_irq(&phba
->hbalock
);
6968 /* Setting state unknown so lpfc_sli_abort_iocb_ring
6969 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
6970 * it to fail all outstanding SCSI IO.
6972 spin_lock_irq(&phba
->pport
->work_port_lock
);
6973 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
6974 spin_unlock_irq(&phba
->pport
->work_port_lock
);
6975 spin_lock_irq(&phba
->hbalock
);
6976 phba
->link_state
= LPFC_LINK_UNKNOWN
;
6977 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
6978 spin_unlock_irq(&phba
->hbalock
);
6980 lpfc_sli_abort_fcp_rings(phba
);
6982 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
6983 "0345 Resetting board due to mailbox timeout\n");
6985 /* Reset the HBA device */
6986 lpfc_reset_hba(phba
);
6990 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
6991 * @phba: Pointer to HBA context object.
6992 * @pmbox: Pointer to mailbox object.
6993 * @flag: Flag indicating how the mailbox need to be processed.
6995 * This function is called by discovery code and HBA management code
6996 * to submit a mailbox command to firmware with SLI-3 interface spec. This
6997 * function gets the hbalock to protect the data structures.
6998 * The mailbox command can be submitted in polling mode, in which case
6999 * this function will wait in a polling loop for the completion of the
7001 * If the mailbox is submitted in no_wait mode (not polling) the
7002 * function will submit the command and returns immediately without waiting
7003 * for the mailbox completion. The no_wait is supported only when HBA
7004 * is in SLI2/SLI3 mode - interrupts are enabled.
7005 * The SLI interface allows only one mailbox pending at a time. If the
7006 * mailbox is issued in polling mode and there is already a mailbox
7007 * pending, then the function will return an error. If the mailbox is issued
7008 * in NO_WAIT mode and there is a mailbox pending already, the function
7009 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
7010 * The sli layer owns the mailbox object until the completion of mailbox
7011 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
7012 * return codes the caller owns the mailbox command after the return of
7016 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
7020 struct lpfc_sli
*psli
= &phba
->sli
;
7021 uint32_t status
, evtctr
;
7022 uint32_t ha_copy
, hc_copy
;
7024 unsigned long timeout
;
7025 unsigned long drvr_flag
= 0;
7026 uint32_t word0
, ldata
;
7027 void __iomem
*to_slim
;
7028 int processing_queue
= 0;
7030 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
7032 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7033 /* processing mbox queue from intr_handler */
7034 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7035 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7038 processing_queue
= 1;
7039 pmbox
= lpfc_mbox_get(phba
);
7041 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7046 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
7047 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
7049 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7050 lpfc_printf_log(phba
, KERN_ERR
,
7051 LOG_MBOX
| LOG_VPORT
,
7052 "1806 Mbox x%x failed. No vport\n",
7053 pmbox
->u
.mb
.mbxCommand
);
7055 goto out_not_finished
;
7059 /* If the PCI channel is in offline state, do not post mbox. */
7060 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
7061 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7062 goto out_not_finished
;
7065 /* If HBA has a deferred error attention, fail the iocb. */
7066 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
7067 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7068 goto out_not_finished
;
7074 status
= MBX_SUCCESS
;
7076 if (phba
->link_state
== LPFC_HBA_ERROR
) {
7077 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7079 /* Mbox command <mbxCommand> cannot issue */
7080 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7081 "(%d):0311 Mailbox command x%x cannot "
7082 "issue Data: x%x x%x\n",
7083 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7084 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
7085 goto out_not_finished
;
7088 if (mbx
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
) {
7089 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
) ||
7090 !(hc_copy
& HC_MBINT_ENA
)) {
7091 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7092 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7093 "(%d):2528 Mailbox command x%x cannot "
7094 "issue Data: x%x x%x\n",
7095 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7096 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
7097 goto out_not_finished
;
7101 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7102 /* Polling for a mbox command when another one is already active
7103 * is not allowed in SLI. Also, the driver must have established
7104 * SLI2 mode to queue and process multiple mbox commands.
7107 if (flag
& MBX_POLL
) {
7108 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7110 /* Mbox command <mbxCommand> cannot issue */
7111 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7112 "(%d):2529 Mailbox command x%x "
7113 "cannot issue Data: x%x x%x\n",
7114 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7115 pmbox
->u
.mb
.mbxCommand
,
7116 psli
->sli_flag
, flag
);
7117 goto out_not_finished
;
7120 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
7121 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7122 /* Mbox command <mbxCommand> cannot issue */
7123 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7124 "(%d):2530 Mailbox command x%x "
7125 "cannot issue Data: x%x x%x\n",
7126 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7127 pmbox
->u
.mb
.mbxCommand
,
7128 psli
->sli_flag
, flag
);
7129 goto out_not_finished
;
7132 /* Another mailbox command is still being processed, queue this
7133 * command to be processed later.
7135 lpfc_mbox_put(phba
, pmbox
);
7137 /* Mbox cmd issue - BUSY */
7138 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7139 "(%d):0308 Mbox cmd issue - BUSY Data: "
7140 "x%x x%x x%x x%x\n",
7141 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
7142 mbx
->mbxCommand
, phba
->pport
->port_state
,
7143 psli
->sli_flag
, flag
);
7145 psli
->slistat
.mbox_busy
++;
7146 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7149 lpfc_debugfs_disc_trc(pmbox
->vport
,
7150 LPFC_DISC_TRC_MBOX_VPORT
,
7151 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
7152 (uint32_t)mbx
->mbxCommand
,
7153 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7156 lpfc_debugfs_disc_trc(phba
->pport
,
7158 "MBOX Bsy: cmd:x%x mb:x%x x%x",
7159 (uint32_t)mbx
->mbxCommand
,
7160 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7166 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7168 /* If we are not polling, we MUST be in SLI2 mode */
7169 if (flag
!= MBX_POLL
) {
7170 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
7171 (mbx
->mbxCommand
!= MBX_KILL_BOARD
)) {
7172 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7173 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7174 /* Mbox command <mbxCommand> cannot issue */
7175 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7176 "(%d):2531 Mailbox command x%x "
7177 "cannot issue Data: x%x x%x\n",
7178 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7179 pmbox
->u
.mb
.mbxCommand
,
7180 psli
->sli_flag
, flag
);
7181 goto out_not_finished
;
7183 /* timeout active mbox command */
7184 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
7186 mod_timer(&psli
->mbox_tmo
, jiffies
+ timeout
);
7189 /* Mailbox cmd <cmd> issue */
7190 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7191 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
7193 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
7194 mbx
->mbxCommand
, phba
->pport
->port_state
,
7195 psli
->sli_flag
, flag
);
7197 if (mbx
->mbxCommand
!= MBX_HEARTBEAT
) {
7199 lpfc_debugfs_disc_trc(pmbox
->vport
,
7200 LPFC_DISC_TRC_MBOX_VPORT
,
7201 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7202 (uint32_t)mbx
->mbxCommand
,
7203 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7206 lpfc_debugfs_disc_trc(phba
->pport
,
7208 "MBOX Send: cmd:x%x mb:x%x x%x",
7209 (uint32_t)mbx
->mbxCommand
,
7210 mbx
->un
.varWords
[0], mbx
->un
.varWords
[1]);
7214 psli
->slistat
.mbox_cmd
++;
7215 evtctr
= psli
->slistat
.mbox_event
;
7217 /* next set own bit for the adapter and copy over command word */
7218 mbx
->mbxOwner
= OWN_CHIP
;
7220 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7221 /* Populate mbox extension offset word. */
7222 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
7223 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
7224 = (uint8_t *)phba
->mbox_ext
7225 - (uint8_t *)phba
->mbox
;
7228 /* Copy the mailbox extension data */
7229 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
7230 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
7231 (uint8_t *)phba
->mbox_ext
,
7232 pmbox
->in_ext_byte_len
);
7234 /* Copy command data to host SLIM area */
7235 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
7237 /* Populate mbox extension offset word. */
7238 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
7239 *(((uint32_t *)mbx
) + pmbox
->mbox_offset_word
)
7240 = MAILBOX_HBA_EXT_OFFSET
;
7242 /* Copy the mailbox extension data */
7243 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
7244 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
7245 MAILBOX_HBA_EXT_OFFSET
,
7246 pmbox
->context2
, pmbox
->in_ext_byte_len
);
7249 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7250 /* copy command data into host mbox for cmpl */
7251 lpfc_sli_pcimem_bcopy(mbx
, phba
->mbox
, MAILBOX_CMD_SIZE
);
7254 /* First copy mbox command data to HBA SLIM, skip past first
7256 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
7257 lpfc_memcpy_to_slim(to_slim
, &mbx
->un
.varWords
[0],
7258 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
7260 /* Next copy over first word, with mbxOwner set */
7261 ldata
= *((uint32_t *)mbx
);
7262 to_slim
= phba
->MBslimaddr
;
7263 writel(ldata
, to_slim
);
7264 readl(to_slim
); /* flush */
7266 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7267 /* switch over to host mailbox */
7268 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
7276 /* Set up reference to mailbox command */
7277 psli
->mbox_active
= pmbox
;
7278 /* Interrupt board to do it */
7279 writel(CA_MBATT
, phba
->CAregaddr
);
7280 readl(phba
->CAregaddr
); /* flush */
7281 /* Don't wait for it to finish, just return */
7285 /* Set up null reference to mailbox command */
7286 psli
->mbox_active
= NULL
;
7287 /* Interrupt board to do it */
7288 writel(CA_MBATT
, phba
->CAregaddr
);
7289 readl(phba
->CAregaddr
); /* flush */
7291 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7292 /* First read mbox status word */
7293 word0
= *((uint32_t *)phba
->mbox
);
7294 word0
= le32_to_cpu(word0
);
7296 /* First read mbox status word */
7297 if (lpfc_readl(phba
->MBslimaddr
, &word0
)) {
7298 spin_unlock_irqrestore(&phba
->hbalock
,
7300 goto out_not_finished
;
7304 /* Read the HBA Host Attention Register */
7305 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
7306 spin_unlock_irqrestore(&phba
->hbalock
,
7308 goto out_not_finished
;
7310 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, pmbox
) *
7313 /* Wait for command to complete */
7314 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
7315 (!(ha_copy
& HA_MBATT
) &&
7316 (phba
->link_state
> LPFC_WARM_START
))) {
7317 if (time_after(jiffies
, timeout
)) {
7318 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7319 spin_unlock_irqrestore(&phba
->hbalock
,
7321 goto out_not_finished
;
7324 /* Check if we took a mbox interrupt while we were
7326 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
7327 && (evtctr
!= psli
->slistat
.mbox_event
))
7331 spin_unlock_irqrestore(&phba
->hbalock
,
7334 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
7337 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7338 /* First copy command data */
7339 word0
= *((uint32_t *)phba
->mbox
);
7340 word0
= le32_to_cpu(word0
);
7341 if (mbx
->mbxCommand
== MBX_CONFIG_PORT
) {
7344 /* Check real SLIM for any errors */
7345 slimword0
= readl(phba
->MBslimaddr
);
7346 slimmb
= (MAILBOX_t
*) & slimword0
;
7347 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
7348 && slimmb
->mbxStatus
) {
7355 /* First copy command data */
7356 word0
= readl(phba
->MBslimaddr
);
7358 /* Read the HBA Host Attention Register */
7359 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
)) {
7360 spin_unlock_irqrestore(&phba
->hbalock
,
7362 goto out_not_finished
;
7366 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
7367 /* copy results back to user */
7368 lpfc_sli_pcimem_bcopy(phba
->mbox
, mbx
, MAILBOX_CMD_SIZE
);
7369 /* Copy the mailbox extension data */
7370 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7371 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
7373 pmbox
->out_ext_byte_len
);
7376 /* First copy command data */
7377 lpfc_memcpy_from_slim(mbx
, phba
->MBslimaddr
,
7379 /* Copy the mailbox extension data */
7380 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
7381 lpfc_memcpy_from_slim(pmbox
->context2
,
7383 MAILBOX_HBA_EXT_OFFSET
,
7384 pmbox
->out_ext_byte_len
);
7388 writel(HA_MBATT
, phba
->HAregaddr
);
7389 readl(phba
->HAregaddr
); /* flush */
7391 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7392 status
= mbx
->mbxStatus
;
7395 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
7399 if (processing_queue
) {
7400 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7401 lpfc_mbox_cmpl_put(phba
, pmbox
);
7403 return MBX_NOT_FINISHED
;
7407 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
7408 * @phba: Pointer to HBA context object.
7410 * The function blocks the posting of SLI4 asynchronous mailbox commands from
7411 * the driver internal pending mailbox queue. It will then try to wait out the
7412 * possible outstanding mailbox command before return.
7415 * 0 - the outstanding mailbox command completed; otherwise, the wait for
7416 * the outstanding mailbox command timed out.
7419 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
7421 struct lpfc_sli
*psli
= &phba
->sli
;
7423 unsigned long timeout
= 0;
7425 /* Mark the asynchronous mailbox command posting as blocked */
7426 spin_lock_irq(&phba
->hbalock
);
7427 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
7428 /* Determine how long we might wait for the active mailbox
7429 * command to be gracefully completed by firmware.
7431 if (phba
->sli
.mbox_active
)
7432 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
7433 phba
->sli
.mbox_active
) *
7435 spin_unlock_irq(&phba
->hbalock
);
7437 /* Make sure the mailbox is really active */
7439 lpfc_sli4_process_missed_mbox_completions(phba
);
7441 /* Wait for the outstnading mailbox command to complete */
7442 while (phba
->sli
.mbox_active
) {
7443 /* Check active mailbox complete status every 2ms */
7445 if (time_after(jiffies
, timeout
)) {
7446 /* Timeout, marked the outstanding cmd not complete */
7452 /* Can not cleanly block async mailbox command, fails it */
7454 spin_lock_irq(&phba
->hbalock
);
7455 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7456 spin_unlock_irq(&phba
->hbalock
);
7462 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
7463 * @phba: Pointer to HBA context object.
7465 * The function unblocks and resume posting of SLI4 asynchronous mailbox
7466 * commands from the driver internal pending mailbox queue. It makes sure
7467 * that there is no outstanding mailbox command before resuming posting
7468 * asynchronous mailbox commands. If, for any reason, there is outstanding
7469 * mailbox command, it will try to wait it out before resuming asynchronous
7470 * mailbox command posting.
7473 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
7475 struct lpfc_sli
*psli
= &phba
->sli
;
7477 spin_lock_irq(&phba
->hbalock
);
7478 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7479 /* Asynchronous mailbox posting is not blocked, do nothing */
7480 spin_unlock_irq(&phba
->hbalock
);
7484 /* Outstanding synchronous mailbox command is guaranteed to be done,
7485 * successful or timeout, after timing-out the outstanding mailbox
7486 * command shall always be removed, so just unblock posting async
7487 * mailbox command and resume
7489 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
7490 spin_unlock_irq(&phba
->hbalock
);
7492 /* wake up worker thread to post asynchronlous mailbox command */
7493 lpfc_worker_wake_up(phba
);
7497 * lpfc_sli4_wait_bmbx_ready - Wait for bootstrap mailbox register ready
7498 * @phba: Pointer to HBA context object.
7499 * @mboxq: Pointer to mailbox object.
7501 * The function waits for the bootstrap mailbox register ready bit from
7502 * port for twice the regular mailbox command timeout value.
7504 * 0 - no timeout on waiting for bootstrap mailbox register ready.
7505 * MBXERR_ERROR - wait for bootstrap mailbox register timed out.
7508 lpfc_sli4_wait_bmbx_ready(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7511 unsigned long timeout
;
7512 struct lpfc_register bmbx_reg
;
7514 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mboxq
)
7518 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
7519 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
7523 if (time_after(jiffies
, timeout
))
7524 return MBXERR_ERROR
;
7525 } while (!db_ready
);
7531 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
7532 * @phba: Pointer to HBA context object.
7533 * @mboxq: Pointer to mailbox object.
7535 * The function posts a mailbox to the port. The mailbox is expected
7536 * to be comletely filled in and ready for the port to operate on it.
7537 * This routine executes a synchronous completion operation on the
7538 * mailbox by polling for its completion.
7540 * The caller must not be holding any locks when calling this routine.
7543 * MBX_SUCCESS - mailbox posted successfully
7544 * Any of the MBX error values.
7547 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
7549 int rc
= MBX_SUCCESS
;
7550 unsigned long iflag
;
7551 uint32_t mcqe_status
;
7553 struct lpfc_sli
*psli
= &phba
->sli
;
7554 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
7555 struct lpfc_bmbx_create
*mbox_rgn
;
7556 struct dma_address
*dma_address
;
7559 * Only one mailbox can be active to the bootstrap mailbox region
7560 * at a time and there is no queueing provided.
7562 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7563 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7564 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7565 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7566 "(%d):2532 Mailbox command x%x (x%x/x%x) "
7567 "cannot issue Data: x%x x%x\n",
7568 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7569 mboxq
->u
.mb
.mbxCommand
,
7570 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7571 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7572 psli
->sli_flag
, MBX_POLL
);
7573 return MBXERR_ERROR
;
7575 /* The server grabs the token and owns it until release */
7576 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7577 phba
->sli
.mbox_active
= mboxq
;
7578 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7580 /* wait for bootstrap mbox register for readyness */
7581 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7586 * Initialize the bootstrap memory region to avoid stale data areas
7587 * in the mailbox post. Then copy the caller's mailbox contents to
7588 * the bmbx mailbox region.
7590 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
7591 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
7592 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
7593 sizeof(struct lpfc_mqe
));
7595 /* Post the high mailbox dma address to the port and wait for ready. */
7596 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
7597 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
7599 /* wait for bootstrap mbox register for hi-address write done */
7600 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7604 /* Post the low mailbox dma address to the port. */
7605 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
7607 /* wait for bootstrap mbox register for low address write done */
7608 rc
= lpfc_sli4_wait_bmbx_ready(phba
, mboxq
);
7613 * Read the CQ to ensure the mailbox has completed.
7614 * If so, update the mailbox status so that the upper layers
7615 * can complete the request normally.
7617 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
7618 sizeof(struct lpfc_mqe
));
7619 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
7620 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
7621 sizeof(struct lpfc_mcqe
));
7622 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
7624 * When the CQE status indicates a failure and the mailbox status
7625 * indicates success then copy the CQE status into the mailbox status
7626 * (and prefix it with x4000).
7628 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
7629 if (bf_get(lpfc_mqe_status
, mb
) == MBX_SUCCESS
)
7630 bf_set(lpfc_mqe_status
, mb
,
7631 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
7634 lpfc_sli4_swap_str(phba
, mboxq
);
7636 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7637 "(%d):0356 Mailbox cmd x%x (x%x/x%x) Status x%x "
7638 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
7639 " x%x x%x CQ: x%x x%x x%x x%x\n",
7640 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7641 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7642 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7643 bf_get(lpfc_mqe_status
, mb
),
7644 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
7645 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
7646 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
7647 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
7648 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
7649 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
7650 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
7651 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
7652 mboxq
->mcqe
.trailer
);
7654 /* We are holding the token, no needed for lock when release */
7655 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7656 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7657 phba
->sli
.mbox_active
= NULL
;
7658 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7663 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
7664 * @phba: Pointer to HBA context object.
7665 * @pmbox: Pointer to mailbox object.
7666 * @flag: Flag indicating how the mailbox need to be processed.
7668 * This function is called by discovery code and HBA management code to submit
7669 * a mailbox command to firmware with SLI-4 interface spec.
7671 * Return codes the caller owns the mailbox command after the return of the
7675 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
7678 struct lpfc_sli
*psli
= &phba
->sli
;
7679 unsigned long iflags
;
7682 /* dump from issue mailbox command if setup */
7683 lpfc_idiag_mbxacc_dump_issue_mbox(phba
, &mboxq
->u
.mb
);
7685 rc
= lpfc_mbox_dev_check(phba
);
7687 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7688 "(%d):2544 Mailbox command x%x (x%x/x%x) "
7689 "cannot issue Data: x%x x%x\n",
7690 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7691 mboxq
->u
.mb
.mbxCommand
,
7692 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7693 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7694 psli
->sli_flag
, flag
);
7695 goto out_not_finished
;
7698 /* Detect polling mode and jump to a handler */
7699 if (!phba
->sli4_hba
.intr_enable
) {
7700 if (flag
== MBX_POLL
)
7701 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7704 if (rc
!= MBX_SUCCESS
)
7705 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7706 "(%d):2541 Mailbox command x%x "
7707 "(x%x/x%x) failure: "
7708 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7710 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7711 mboxq
->u
.mb
.mbxCommand
,
7712 lpfc_sli_config_mbox_subsys_get(phba
,
7714 lpfc_sli_config_mbox_opcode_get(phba
,
7716 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7717 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7718 bf_get(lpfc_mcqe_ext_status
,
7720 psli
->sli_flag
, flag
);
7722 } else if (flag
== MBX_POLL
) {
7723 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
7724 "(%d):2542 Try to issue mailbox command "
7725 "x%x (x%x/x%x) synchronously ahead of async"
7726 "mailbox command queue: 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 /* Try to block the asynchronous mailbox posting */
7733 rc
= lpfc_sli4_async_mbox_block(phba
);
7735 /* Successfully blocked, now issue sync mbox cmd */
7736 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
7737 if (rc
!= MBX_SUCCESS
)
7738 lpfc_printf_log(phba
, KERN_WARNING
,
7740 "(%d):2597 Sync Mailbox command "
7741 "x%x (x%x/x%x) failure: "
7742 "mqe_sta: x%x mcqe_sta: x%x/x%x "
7744 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7745 mboxq
->u
.mb
.mbxCommand
,
7746 lpfc_sli_config_mbox_subsys_get(phba
,
7748 lpfc_sli_config_mbox_opcode_get(phba
,
7750 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
),
7751 bf_get(lpfc_mcqe_status
, &mboxq
->mcqe
),
7752 bf_get(lpfc_mcqe_ext_status
,
7754 psli
->sli_flag
, flag
);
7755 /* Unblock the async mailbox posting afterward */
7756 lpfc_sli4_async_mbox_unblock(phba
);
7761 /* Now, interrupt mode asynchrous mailbox command */
7762 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
7764 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7765 "(%d):2543 Mailbox command x%x (x%x/x%x) "
7766 "cannot issue Data: x%x x%x\n",
7767 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7768 mboxq
->u
.mb
.mbxCommand
,
7769 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7770 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7771 psli
->sli_flag
, flag
);
7772 goto out_not_finished
;
7775 /* Put the mailbox command to the driver internal FIFO */
7776 psli
->slistat
.mbox_busy
++;
7777 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7778 lpfc_mbox_put(phba
, mboxq
);
7779 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7780 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7781 "(%d):0354 Mbox cmd issue - Enqueue Data: "
7782 "x%x (x%x/x%x) x%x x%x x%x\n",
7783 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
7784 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
7785 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7786 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7787 phba
->pport
->port_state
,
7788 psli
->sli_flag
, MBX_NOWAIT
);
7789 /* Wake up worker thread to transport mailbox command from head */
7790 lpfc_worker_wake_up(phba
);
7795 return MBX_NOT_FINISHED
;
7799 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
7800 * @phba: Pointer to HBA context object.
7802 * This function is called by worker thread to send a mailbox command to
7803 * SLI4 HBA firmware.
7807 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
7809 struct lpfc_sli
*psli
= &phba
->sli
;
7810 LPFC_MBOXQ_t
*mboxq
;
7811 int rc
= MBX_SUCCESS
;
7812 unsigned long iflags
;
7813 struct lpfc_mqe
*mqe
;
7816 /* Check interrupt mode before post async mailbox command */
7817 if (unlikely(!phba
->sli4_hba
.intr_enable
))
7818 return MBX_NOT_FINISHED
;
7820 /* Check for mailbox command service token */
7821 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7822 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
7823 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7824 return MBX_NOT_FINISHED
;
7826 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
7827 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7828 return MBX_NOT_FINISHED
;
7830 if (unlikely(phba
->sli
.mbox_active
)) {
7831 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7832 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7833 "0384 There is pending active mailbox cmd\n");
7834 return MBX_NOT_FINISHED
;
7836 /* Take the mailbox command service token */
7837 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
7839 /* Get the next mailbox command from head of queue */
7840 mboxq
= lpfc_mbox_get(phba
);
7842 /* If no more mailbox command waiting for post, we're done */
7844 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7845 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7848 phba
->sli
.mbox_active
= mboxq
;
7849 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7851 /* Check device readiness for posting mailbox command */
7852 rc
= lpfc_mbox_dev_check(phba
);
7854 /* Driver clean routine will clean up pending mailbox */
7855 goto out_not_finished
;
7857 /* Prepare the mbox command to be posted */
7858 mqe
= &mboxq
->u
.mqe
;
7859 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
7861 /* Start timer for the mbox_tmo and log some mailbox post messages */
7862 mod_timer(&psli
->mbox_tmo
, (jiffies
+
7863 msecs_to_jiffies(1000 * lpfc_mbox_tmo_val(phba
, mboxq
))));
7865 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
7866 "(%d):0355 Mailbox cmd x%x (x%x/x%x) issue Data: "
7868 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
7869 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7870 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7871 phba
->pport
->port_state
, psli
->sli_flag
);
7873 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
7875 lpfc_debugfs_disc_trc(mboxq
->vport
,
7876 LPFC_DISC_TRC_MBOX_VPORT
,
7877 "MBOX Send vport: cmd:x%x mb:x%x x%x",
7878 mbx_cmnd
, mqe
->un
.mb_words
[0],
7879 mqe
->un
.mb_words
[1]);
7881 lpfc_debugfs_disc_trc(phba
->pport
,
7883 "MBOX Send: cmd:x%x mb:x%x x%x",
7884 mbx_cmnd
, mqe
->un
.mb_words
[0],
7885 mqe
->un
.mb_words
[1]);
7888 psli
->slistat
.mbox_cmd
++;
7890 /* Post the mailbox command to the port */
7891 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
7892 if (rc
!= MBX_SUCCESS
) {
7893 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
7894 "(%d):2533 Mailbox command x%x (x%x/x%x) "
7895 "cannot issue Data: x%x x%x\n",
7896 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
7897 mboxq
->u
.mb
.mbxCommand
,
7898 lpfc_sli_config_mbox_subsys_get(phba
, mboxq
),
7899 lpfc_sli_config_mbox_opcode_get(phba
, mboxq
),
7900 psli
->sli_flag
, MBX_NOWAIT
);
7901 goto out_not_finished
;
7907 spin_lock_irqsave(&phba
->hbalock
, iflags
);
7908 if (phba
->sli
.mbox_active
) {
7909 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7910 __lpfc_mbox_cmpl_put(phba
, mboxq
);
7911 /* Release the token */
7912 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7913 phba
->sli
.mbox_active
= NULL
;
7915 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
7917 return MBX_NOT_FINISHED
;
7921 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
7922 * @phba: Pointer to HBA context object.
7923 * @pmbox: Pointer to mailbox object.
7924 * @flag: Flag indicating how the mailbox need to be processed.
7926 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
7927 * the API jump table function pointer from the lpfc_hba struct.
7929 * Return codes the caller owns the mailbox command after the return of the
7933 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
7935 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
7939 * lpfc_mbox_api_table_setup - Set up mbox api function jump table
7940 * @phba: The hba struct for which this call is being executed.
7941 * @dev_grp: The HBA PCI-Device group number.
7943 * This routine sets up the mbox interface API function jump table in @phba
7945 * Returns: 0 - success, -ENODEV - failure.
7948 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
7952 case LPFC_PCI_DEV_LP
:
7953 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
7954 phba
->lpfc_sli_handle_slow_ring_event
=
7955 lpfc_sli_handle_slow_ring_event_s3
;
7956 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
7957 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
7958 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
7960 case LPFC_PCI_DEV_OC
:
7961 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
7962 phba
->lpfc_sli_handle_slow_ring_event
=
7963 lpfc_sli_handle_slow_ring_event_s4
;
7964 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
7965 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
7966 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
7969 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7970 "1420 Invalid HBA PCI-device group: 0x%x\n",
7979 * __lpfc_sli_ringtx_put - Add an iocb to the txq
7980 * @phba: Pointer to HBA context object.
7981 * @pring: Pointer to driver SLI ring object.
7982 * @piocb: Pointer to address of newly added command iocb.
7984 * This function is called with hbalock held to add a command
7985 * iocb to the txq when SLI layer cannot submit the command iocb
7989 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7990 struct lpfc_iocbq
*piocb
)
7992 lockdep_assert_held(&phba
->hbalock
);
7993 /* Insert the caller's iocb in the txq tail for later processing. */
7994 list_add_tail(&piocb
->list
, &pring
->txq
);
7998 * lpfc_sli_next_iocb - Get the next iocb in the txq
7999 * @phba: Pointer to HBA context object.
8000 * @pring: Pointer to driver SLI ring object.
8001 * @piocb: Pointer to address of newly added command iocb.
8003 * This function is called with hbalock held before a new
8004 * iocb is submitted to the firmware. This function checks
8005 * txq to flush the iocbs in txq to Firmware before
8006 * submitting new iocbs to the Firmware.
8007 * If there are iocbs in the txq which need to be submitted
8008 * to firmware, lpfc_sli_next_iocb returns the first element
8009 * of the txq after dequeuing it from txq.
8010 * If there is no iocb in the txq then the function will return
8011 * *piocb and *piocb is set to NULL. Caller needs to check
8012 * *piocb to find if there are more commands in the txq.
8014 static struct lpfc_iocbq
*
8015 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
8016 struct lpfc_iocbq
**piocb
)
8018 struct lpfc_iocbq
* nextiocb
;
8020 lockdep_assert_held(&phba
->hbalock
);
8022 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
8032 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
8033 * @phba: Pointer to HBA context object.
8034 * @ring_number: SLI ring number to issue iocb on.
8035 * @piocb: Pointer to command iocb.
8036 * @flag: Flag indicating if this command can be put into txq.
8038 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
8039 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
8040 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
8041 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
8042 * this function allows only iocbs for posting buffers. This function finds
8043 * next available slot in the command ring and posts the command to the
8044 * available slot and writes the port attention register to request HBA start
8045 * processing new iocb. If there is no slot available in the ring and
8046 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
8047 * the function returns IOCB_BUSY.
8049 * This function is called with hbalock held. The function will return success
8050 * after it successfully submit the iocb to firmware or after adding to the
8054 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
8055 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8057 struct lpfc_iocbq
*nextiocb
;
8059 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
8061 lockdep_assert_held(&phba
->hbalock
);
8063 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
8064 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
8065 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
8066 lpfc_printf_log(phba
, KERN_ERR
,
8067 LOG_SLI
| LOG_VPORT
,
8068 "1807 IOCB x%x failed. No vport\n",
8069 piocb
->iocb
.ulpCommand
);
8075 /* If the PCI channel is in offline state, do not post iocbs. */
8076 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8079 /* If HBA has a deferred error attention, fail the iocb. */
8080 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
8084 * We should never get an IOCB if we are in a < LINK_DOWN state
8086 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8090 * Check to see if we are blocking IOCB processing because of a
8091 * outstanding event.
8093 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
8096 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
8098 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
8099 * can be issued if the link is not up.
8101 switch (piocb
->iocb
.ulpCommand
) {
8102 case CMD_GEN_REQUEST64_CR
:
8103 case CMD_GEN_REQUEST64_CX
:
8104 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
8105 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
8106 FC_RCTL_DD_UNSOL_CMD
) ||
8107 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
8108 MENLO_TRANSPORT_TYPE
))
8112 case CMD_QUE_RING_BUF_CN
:
8113 case CMD_QUE_RING_BUF64_CN
:
8115 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
8116 * completion, iocb_cmpl MUST be 0.
8118 if (piocb
->iocb_cmpl
)
8119 piocb
->iocb_cmpl
= NULL
;
8121 case CMD_CREATE_XRI_CR
:
8122 case CMD_CLOSE_XRI_CN
:
8123 case CMD_CLOSE_XRI_CX
:
8130 * For FCP commands, we must be in a state where we can process link
8133 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
8134 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
8138 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
8139 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
8140 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
8143 lpfc_sli_update_ring(phba
, pring
);
8145 lpfc_sli_update_full_ring(phba
, pring
);
8148 return IOCB_SUCCESS
;
8153 pring
->stats
.iocb_cmd_delay
++;
8157 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8158 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
8159 return IOCB_SUCCESS
;
8166 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
8167 * @phba: Pointer to HBA context object.
8168 * @piocb: Pointer to command iocb.
8169 * @sglq: Pointer to the scatter gather queue object.
8171 * This routine converts the bpl or bde that is in the IOCB
8172 * to a sgl list for the sli4 hardware. The physical address
8173 * of the bpl/bde is converted back to a virtual address.
8174 * If the IOCB contains a BPL then the list of BDE's is
8175 * converted to sli4_sge's. If the IOCB contains a single
8176 * BDE then it is converted to a single sli_sge.
8177 * The IOCB is still in cpu endianess so the contents of
8178 * the bpl can be used without byte swapping.
8180 * Returns valid XRI = Success, NO_XRI = Failure.
8183 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
8184 struct lpfc_sglq
*sglq
)
8186 uint16_t xritag
= NO_XRI
;
8187 struct ulp_bde64
*bpl
= NULL
;
8188 struct ulp_bde64 bde
;
8189 struct sli4_sge
*sgl
= NULL
;
8190 struct lpfc_dmabuf
*dmabuf
;
8194 uint32_t offset
= 0; /* accumulated offset in the sg request list */
8195 int inbound
= 0; /* number of sg reply entries inbound from firmware */
8197 if (!piocbq
|| !sglq
)
8200 sgl
= (struct sli4_sge
*)sglq
->sgl
;
8201 icmd
= &piocbq
->iocb
;
8202 if (icmd
->ulpCommand
== CMD_XMIT_BLS_RSP64_CX
)
8203 return sglq
->sli4_xritag
;
8204 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
8205 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
8206 sizeof(struct ulp_bde64
);
8207 /* The addrHigh and addrLow fields within the IOCB
8208 * have not been byteswapped yet so there is no
8209 * need to swap them back.
8211 if (piocbq
->context3
)
8212 dmabuf
= (struct lpfc_dmabuf
*)piocbq
->context3
;
8216 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
8220 for (i
= 0; i
< numBdes
; i
++) {
8221 /* Should already be byte swapped. */
8222 sgl
->addr_hi
= bpl
->addrHigh
;
8223 sgl
->addr_lo
= bpl
->addrLow
;
8225 sgl
->word2
= le32_to_cpu(sgl
->word2
);
8226 if ((i
+1) == numBdes
)
8227 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
8229 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
8230 /* swap the size field back to the cpu so we
8231 * can assign it to the sgl.
8233 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
8234 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
8235 /* The offsets in the sgl need to be accumulated
8236 * separately for the request and reply lists.
8237 * The request is always first, the reply follows.
8239 if (piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) {
8240 /* add up the reply sg entries */
8241 if (bpl
->tus
.f
.bdeFlags
== BUFF_TYPE_BDE_64I
)
8243 /* first inbound? reset the offset */
8246 bf_set(lpfc_sli4_sge_offset
, sgl
, offset
);
8247 bf_set(lpfc_sli4_sge_type
, sgl
,
8248 LPFC_SGE_TYPE_DATA
);
8249 offset
+= bde
.tus
.f
.bdeSize
;
8251 sgl
->word2
= cpu_to_le32(sgl
->word2
);
8255 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
8256 /* The addrHigh and addrLow fields of the BDE have not
8257 * been byteswapped yet so they need to be swapped
8258 * before putting them in the sgl.
8261 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
8263 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
8264 sgl
->word2
= le32_to_cpu(sgl
->word2
);
8265 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
8266 sgl
->word2
= cpu_to_le32(sgl
->word2
);
8268 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
8270 return sglq
->sli4_xritag
;
8274 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
8275 * @phba: Pointer to HBA context object.
8276 * @piocb: Pointer to command iocb.
8277 * @wqe: Pointer to the work queue entry.
8279 * This routine converts the iocb command to its Work Queue Entry
8280 * equivalent. The wqe pointer should not have any fields set when
8281 * this routine is called because it will memcpy over them.
8282 * This routine does not set the CQ_ID or the WQEC bits in the
8285 * Returns: 0 = Success, IOCB_ERROR = Failure.
8288 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
8289 union lpfc_wqe
*wqe
)
8291 uint32_t xmit_len
= 0, total_len
= 0;
8295 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
8298 uint16_t abrt_iotag
;
8299 struct lpfc_iocbq
*abrtiocbq
;
8300 struct ulp_bde64
*bpl
= NULL
;
8301 uint32_t els_id
= LPFC_ELS_ID_DEFAULT
;
8303 struct ulp_bde64 bde
;
8304 struct lpfc_nodelist
*ndlp
;
8308 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
8309 /* The fcp commands will set command type */
8310 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
8311 command_type
= FCP_COMMAND
;
8312 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
8313 command_type
= ELS_COMMAND_FIP
;
8315 command_type
= ELS_COMMAND_NON_FIP
;
8317 if (phba
->fcp_embed_io
)
8318 memset(wqe
, 0, sizeof(union lpfc_wqe128
));
8319 /* Some of the fields are in the right position already */
8320 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
8321 wqe
->generic
.wqe_com
.word7
= 0; /* The ct field has moved so reset */
8322 wqe
->generic
.wqe_com
.word10
= 0;
8324 abort_tag
= (uint32_t) iocbq
->iotag
;
8325 xritag
= iocbq
->sli4_xritag
;
8326 /* words0-2 bpl convert bde */
8327 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
8328 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
8329 sizeof(struct ulp_bde64
);
8330 bpl
= (struct ulp_bde64
*)
8331 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
8335 /* Should already be byte swapped. */
8336 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
8337 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
8338 /* swap the size field back to the cpu so we
8339 * can assign it to the sgl.
8341 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
8342 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
8344 for (i
= 0; i
< numBdes
; i
++) {
8345 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
8346 total_len
+= bde
.tus
.f
.bdeSize
;
8349 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
8351 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
8352 cmnd
= iocbq
->iocb
.ulpCommand
;
8354 switch (iocbq
->iocb
.ulpCommand
) {
8355 case CMD_ELS_REQUEST64_CR
:
8356 if (iocbq
->iocb_flag
& LPFC_IO_LIBDFC
)
8357 ndlp
= iocbq
->context_un
.ndlp
;
8359 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8360 if (!iocbq
->iocb
.ulpLe
) {
8361 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8362 "2007 Only Limited Edition cmd Format"
8363 " supported 0x%x\n",
8364 iocbq
->iocb
.ulpCommand
);
8368 wqe
->els_req
.payload_len
= xmit_len
;
8369 /* Els_reguest64 has a TMO */
8370 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
8371 iocbq
->iocb
.ulpTimeout
);
8372 /* Need a VF for word 4 set the vf bit*/
8373 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
8374 /* And a VFID for word 12 */
8375 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
8376 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8377 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8378 iocbq
->iocb
.ulpContext
);
8379 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, ct
);
8380 bf_set(wqe_pu
, &wqe
->els_req
.wqe_com
, 0);
8381 /* CCP CCPE PV PRI in word10 were set in the memcpy */
8382 if (command_type
== ELS_COMMAND_FIP
)
8383 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
8384 >> LPFC_FIP_ELS_ID_SHIFT
);
8385 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8386 iocbq
->context2
)->virt
);
8387 if_type
= bf_get(lpfc_sli_intf_if_type
,
8388 &phba
->sli4_hba
.sli_intf
);
8389 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8390 if (pcmd
&& (*pcmd
== ELS_CMD_FLOGI
||
8391 *pcmd
== ELS_CMD_SCR
||
8392 *pcmd
== ELS_CMD_FDISC
||
8393 *pcmd
== ELS_CMD_LOGO
||
8394 *pcmd
== ELS_CMD_PLOGI
)) {
8395 bf_set(els_req64_sp
, &wqe
->els_req
, 1);
8396 bf_set(els_req64_sid
, &wqe
->els_req
,
8397 iocbq
->vport
->fc_myDID
);
8398 if ((*pcmd
== ELS_CMD_FLOGI
) &&
8399 !(phba
->fc_topology
==
8400 LPFC_TOPOLOGY_LOOP
))
8401 bf_set(els_req64_sid
, &wqe
->els_req
, 0);
8402 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 1);
8403 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8404 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8405 } else if (pcmd
&& iocbq
->context1
) {
8406 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, 0);
8407 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
8408 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8411 bf_set(wqe_temp_rpi
, &wqe
->els_req
.wqe_com
,
8412 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8413 bf_set(wqe_els_id
, &wqe
->els_req
.wqe_com
, els_id
);
8414 bf_set(wqe_dbde
, &wqe
->els_req
.wqe_com
, 1);
8415 bf_set(wqe_iod
, &wqe
->els_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8416 bf_set(wqe_qosd
, &wqe
->els_req
.wqe_com
, 1);
8417 bf_set(wqe_lenloc
, &wqe
->els_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8418 bf_set(wqe_ebde_cnt
, &wqe
->els_req
.wqe_com
, 0);
8419 wqe
->els_req
.max_response_payload_len
= total_len
- xmit_len
;
8421 case CMD_XMIT_SEQUENCE64_CX
:
8422 bf_set(wqe_ctxt_tag
, &wqe
->xmit_sequence
.wqe_com
,
8423 iocbq
->iocb
.un
.ulpWord
[3]);
8424 bf_set(wqe_rcvoxid
, &wqe
->xmit_sequence
.wqe_com
,
8425 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8426 /* The entire sequence is transmitted for this IOCB */
8427 xmit_len
= total_len
;
8428 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
8429 if (phba
->link_flag
& LS_LOOPBACK_MODE
)
8430 bf_set(wqe_xo
, &wqe
->xmit_sequence
.wge_ctl
, 1);
8431 case CMD_XMIT_SEQUENCE64_CR
:
8432 /* word3 iocb=io_tag32 wqe=reserved */
8433 wqe
->xmit_sequence
.rsvd3
= 0;
8434 /* word4 relative_offset memcpy */
8435 /* word5 r_ctl/df_ctl memcpy */
8436 bf_set(wqe_pu
, &wqe
->xmit_sequence
.wqe_com
, 0);
8437 bf_set(wqe_dbde
, &wqe
->xmit_sequence
.wqe_com
, 1);
8438 bf_set(wqe_iod
, &wqe
->xmit_sequence
.wqe_com
,
8439 LPFC_WQE_IOD_WRITE
);
8440 bf_set(wqe_lenloc
, &wqe
->xmit_sequence
.wqe_com
,
8441 LPFC_WQE_LENLOC_WORD12
);
8442 bf_set(wqe_ebde_cnt
, &wqe
->xmit_sequence
.wqe_com
, 0);
8443 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
8444 command_type
= OTHER_COMMAND
;
8446 case CMD_XMIT_BCAST64_CN
:
8447 /* word3 iocb=iotag32 wqe=seq_payload_len */
8448 wqe
->xmit_bcast64
.seq_payload_len
= xmit_len
;
8449 /* word4 iocb=rsvd wqe=rsvd */
8450 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
8451 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
8452 bf_set(wqe_ct
, &wqe
->xmit_bcast64
.wqe_com
,
8453 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8454 bf_set(wqe_dbde
, &wqe
->xmit_bcast64
.wqe_com
, 1);
8455 bf_set(wqe_iod
, &wqe
->xmit_bcast64
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8456 bf_set(wqe_lenloc
, &wqe
->xmit_bcast64
.wqe_com
,
8457 LPFC_WQE_LENLOC_WORD3
);
8458 bf_set(wqe_ebde_cnt
, &wqe
->xmit_bcast64
.wqe_com
, 0);
8460 case CMD_FCP_IWRITE64_CR
:
8461 command_type
= FCP_COMMAND_DATA_OUT
;
8462 /* word3 iocb=iotag wqe=payload_offset_len */
8463 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8464 bf_set(payload_offset_len
, &wqe
->fcp_iwrite
,
8465 xmit_len
+ sizeof(struct fcp_rsp
));
8466 bf_set(cmd_buff_len
, &wqe
->fcp_iwrite
,
8468 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8469 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8470 bf_set(wqe_erp
, &wqe
->fcp_iwrite
.wqe_com
,
8471 iocbq
->iocb
.ulpFCP2Rcvy
);
8472 bf_set(wqe_lnk
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpXS
);
8473 /* Always open the exchange */
8474 bf_set(wqe_iod
, &wqe
->fcp_iwrite
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8475 bf_set(wqe_lenloc
, &wqe
->fcp_iwrite
.wqe_com
,
8476 LPFC_WQE_LENLOC_WORD4
);
8477 bf_set(wqe_pu
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpPU
);
8478 bf_set(wqe_dbde
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8479 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8480 bf_set(wqe_oas
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8481 bf_set(wqe_ccpe
, &wqe
->fcp_iwrite
.wqe_com
, 1);
8482 if (iocbq
->priority
) {
8483 bf_set(wqe_ccp
, &wqe
->fcp_iwrite
.wqe_com
,
8484 (iocbq
->priority
<< 1));
8486 bf_set(wqe_ccp
, &wqe
->fcp_iwrite
.wqe_com
,
8487 (phba
->cfg_XLanePriority
<< 1));
8490 /* Note, word 10 is already initialized to 0 */
8492 if (phba
->fcp_embed_io
) {
8493 struct lpfc_scsi_buf
*lpfc_cmd
;
8494 struct sli4_sge
*sgl
;
8495 union lpfc_wqe128
*wqe128
;
8496 struct fcp_cmnd
*fcp_cmnd
;
8499 /* 128 byte wqe support here */
8500 wqe128
= (union lpfc_wqe128
*)wqe
;
8502 lpfc_cmd
= iocbq
->context1
;
8503 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8504 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8506 /* Word 0-2 - FCP_CMND */
8507 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8508 BUFF_TYPE_BDE_IMMED
;
8509 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8510 wqe128
->generic
.bde
.addrHigh
= 0;
8511 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8513 bf_set(wqe_wqes
, &wqe128
->fcp_iwrite
.wqe_com
, 1);
8515 /* Word 22-29 FCP CMND Payload */
8516 ptr
= &wqe128
->words
[22];
8517 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8520 case CMD_FCP_IREAD64_CR
:
8521 /* word3 iocb=iotag wqe=payload_offset_len */
8522 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8523 bf_set(payload_offset_len
, &wqe
->fcp_iread
,
8524 xmit_len
+ sizeof(struct fcp_rsp
));
8525 bf_set(cmd_buff_len
, &wqe
->fcp_iread
,
8527 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
8528 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
8529 bf_set(wqe_erp
, &wqe
->fcp_iread
.wqe_com
,
8530 iocbq
->iocb
.ulpFCP2Rcvy
);
8531 bf_set(wqe_lnk
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpXS
);
8532 /* Always open the exchange */
8533 bf_set(wqe_iod
, &wqe
->fcp_iread
.wqe_com
, LPFC_WQE_IOD_READ
);
8534 bf_set(wqe_lenloc
, &wqe
->fcp_iread
.wqe_com
,
8535 LPFC_WQE_LENLOC_WORD4
);
8536 bf_set(wqe_pu
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpPU
);
8537 bf_set(wqe_dbde
, &wqe
->fcp_iread
.wqe_com
, 1);
8538 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8539 bf_set(wqe_oas
, &wqe
->fcp_iread
.wqe_com
, 1);
8540 bf_set(wqe_ccpe
, &wqe
->fcp_iread
.wqe_com
, 1);
8541 if (iocbq
->priority
) {
8542 bf_set(wqe_ccp
, &wqe
->fcp_iread
.wqe_com
,
8543 (iocbq
->priority
<< 1));
8545 bf_set(wqe_ccp
, &wqe
->fcp_iread
.wqe_com
,
8546 (phba
->cfg_XLanePriority
<< 1));
8549 /* Note, word 10 is already initialized to 0 */
8551 if (phba
->fcp_embed_io
) {
8552 struct lpfc_scsi_buf
*lpfc_cmd
;
8553 struct sli4_sge
*sgl
;
8554 union lpfc_wqe128
*wqe128
;
8555 struct fcp_cmnd
*fcp_cmnd
;
8558 /* 128 byte wqe support here */
8559 wqe128
= (union lpfc_wqe128
*)wqe
;
8561 lpfc_cmd
= iocbq
->context1
;
8562 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8563 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8565 /* Word 0-2 - FCP_CMND */
8566 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8567 BUFF_TYPE_BDE_IMMED
;
8568 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8569 wqe128
->generic
.bde
.addrHigh
= 0;
8570 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8572 bf_set(wqe_wqes
, &wqe128
->fcp_iread
.wqe_com
, 1);
8574 /* Word 22-29 FCP CMND Payload */
8575 ptr
= &wqe128
->words
[22];
8576 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8579 case CMD_FCP_ICMND64_CR
:
8580 /* word3 iocb=iotag wqe=payload_offset_len */
8581 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
8582 bf_set(payload_offset_len
, &wqe
->fcp_icmd
,
8583 xmit_len
+ sizeof(struct fcp_rsp
));
8584 bf_set(cmd_buff_len
, &wqe
->fcp_icmd
,
8586 /* word3 iocb=IO_TAG wqe=reserved */
8587 bf_set(wqe_pu
, &wqe
->fcp_icmd
.wqe_com
, 0);
8588 /* Always open the exchange */
8589 bf_set(wqe_dbde
, &wqe
->fcp_icmd
.wqe_com
, 1);
8590 bf_set(wqe_iod
, &wqe
->fcp_icmd
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8591 bf_set(wqe_qosd
, &wqe
->fcp_icmd
.wqe_com
, 1);
8592 bf_set(wqe_lenloc
, &wqe
->fcp_icmd
.wqe_com
,
8593 LPFC_WQE_LENLOC_NONE
);
8594 bf_set(wqe_erp
, &wqe
->fcp_icmd
.wqe_com
,
8595 iocbq
->iocb
.ulpFCP2Rcvy
);
8596 if (iocbq
->iocb_flag
& LPFC_IO_OAS
) {
8597 bf_set(wqe_oas
, &wqe
->fcp_icmd
.wqe_com
, 1);
8598 bf_set(wqe_ccpe
, &wqe
->fcp_icmd
.wqe_com
, 1);
8599 if (iocbq
->priority
) {
8600 bf_set(wqe_ccp
, &wqe
->fcp_icmd
.wqe_com
,
8601 (iocbq
->priority
<< 1));
8603 bf_set(wqe_ccp
, &wqe
->fcp_icmd
.wqe_com
,
8604 (phba
->cfg_XLanePriority
<< 1));
8607 /* Note, word 10 is already initialized to 0 */
8609 if (phba
->fcp_embed_io
) {
8610 struct lpfc_scsi_buf
*lpfc_cmd
;
8611 struct sli4_sge
*sgl
;
8612 union lpfc_wqe128
*wqe128
;
8613 struct fcp_cmnd
*fcp_cmnd
;
8616 /* 128 byte wqe support here */
8617 wqe128
= (union lpfc_wqe128
*)wqe
;
8619 lpfc_cmd
= iocbq
->context1
;
8620 sgl
= (struct sli4_sge
*)lpfc_cmd
->fcp_bpl
;
8621 fcp_cmnd
= lpfc_cmd
->fcp_cmnd
;
8623 /* Word 0-2 - FCP_CMND */
8624 wqe128
->generic
.bde
.tus
.f
.bdeFlags
=
8625 BUFF_TYPE_BDE_IMMED
;
8626 wqe128
->generic
.bde
.tus
.f
.bdeSize
= sgl
->sge_len
;
8627 wqe128
->generic
.bde
.addrHigh
= 0;
8628 wqe128
->generic
.bde
.addrLow
= 88; /* Word 22 */
8630 bf_set(wqe_wqes
, &wqe128
->fcp_icmd
.wqe_com
, 1);
8632 /* Word 22-29 FCP CMND Payload */
8633 ptr
= &wqe128
->words
[22];
8634 memcpy(ptr
, fcp_cmnd
, sizeof(struct fcp_cmnd
));
8637 case CMD_GEN_REQUEST64_CR
:
8638 /* For this command calculate the xmit length of the
8642 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
8643 sizeof(struct ulp_bde64
);
8644 for (i
= 0; i
< numBdes
; i
++) {
8645 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
8646 if (bde
.tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
8648 xmit_len
+= bde
.tus
.f
.bdeSize
;
8650 /* word3 iocb=IO_TAG wqe=request_payload_len */
8651 wqe
->gen_req
.request_payload_len
= xmit_len
;
8652 /* word4 iocb=parameter wqe=relative_offset memcpy */
8653 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
8654 /* word6 context tag copied in memcpy */
8655 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
8656 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
8657 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8658 "2015 Invalid CT %x command 0x%x\n",
8659 ct
, iocbq
->iocb
.ulpCommand
);
8662 bf_set(wqe_ct
, &wqe
->gen_req
.wqe_com
, 0);
8663 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpTimeout
);
8664 bf_set(wqe_pu
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpPU
);
8665 bf_set(wqe_dbde
, &wqe
->gen_req
.wqe_com
, 1);
8666 bf_set(wqe_iod
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_IOD_READ
);
8667 bf_set(wqe_qosd
, &wqe
->gen_req
.wqe_com
, 1);
8668 bf_set(wqe_lenloc
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
8669 bf_set(wqe_ebde_cnt
, &wqe
->gen_req
.wqe_com
, 0);
8670 wqe
->gen_req
.max_response_payload_len
= total_len
- xmit_len
;
8671 command_type
= OTHER_COMMAND
;
8673 case CMD_XMIT_ELS_RSP64_CX
:
8674 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8675 /* words0-2 BDE memcpy */
8676 /* word3 iocb=iotag32 wqe=response_payload_len */
8677 wqe
->xmit_els_rsp
.response_payload_len
= xmit_len
;
8679 wqe
->xmit_els_rsp
.word4
= 0;
8680 /* word5 iocb=rsvd wge=did */
8681 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
8682 iocbq
->iocb
.un
.xseq64
.xmit_els_remoteID
);
8684 if_type
= bf_get(lpfc_sli_intf_if_type
,
8685 &phba
->sli4_hba
.sli_intf
);
8686 if (if_type
== LPFC_SLI_INTF_IF_TYPE_2
) {
8687 if (iocbq
->vport
->fc_flag
& FC_PT2PT
) {
8688 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8689 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8690 iocbq
->vport
->fc_myDID
);
8691 if (iocbq
->vport
->fc_myDID
== Fabric_DID
) {
8693 &wqe
->xmit_els_rsp
.wqe_dest
, 0);
8697 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
,
8698 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8699 bf_set(wqe_pu
, &wqe
->xmit_els_rsp
.wqe_com
, iocbq
->iocb
.ulpPU
);
8700 bf_set(wqe_rcvoxid
, &wqe
->xmit_els_rsp
.wqe_com
,
8701 iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
);
8702 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
8703 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8704 phba
->vpi_ids
[iocbq
->vport
->vpi
]);
8705 bf_set(wqe_dbde
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8706 bf_set(wqe_iod
, &wqe
->xmit_els_rsp
.wqe_com
, LPFC_WQE_IOD_WRITE
);
8707 bf_set(wqe_qosd
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8708 bf_set(wqe_lenloc
, &wqe
->xmit_els_rsp
.wqe_com
,
8709 LPFC_WQE_LENLOC_WORD3
);
8710 bf_set(wqe_ebde_cnt
, &wqe
->xmit_els_rsp
.wqe_com
, 0);
8711 bf_set(wqe_rsp_temp_rpi
, &wqe
->xmit_els_rsp
,
8712 phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
]);
8713 pcmd
= (uint32_t *) (((struct lpfc_dmabuf
*)
8714 iocbq
->context2
)->virt
);
8715 if (phba
->fc_topology
== LPFC_TOPOLOGY_LOOP
) {
8716 bf_set(els_rsp64_sp
, &wqe
->xmit_els_rsp
, 1);
8717 bf_set(els_rsp64_sid
, &wqe
->xmit_els_rsp
,
8718 iocbq
->vport
->fc_myDID
);
8719 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
8720 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
8721 phba
->vpi_ids
[phba
->pport
->vpi
]);
8723 command_type
= OTHER_COMMAND
;
8725 case CMD_CLOSE_XRI_CN
:
8726 case CMD_ABORT_XRI_CN
:
8727 case CMD_ABORT_XRI_CX
:
8728 /* words 0-2 memcpy should be 0 rserved */
8729 /* port will send abts */
8730 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
8731 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
8732 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
8733 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
8737 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
8739 * The link is down, or the command was ELS_FIP
8740 * so the fw does not need to send abts
8743 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
8745 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
8746 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
8747 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
8748 wqe
->abort_cmd
.rsrvd5
= 0;
8749 bf_set(wqe_ct
, &wqe
->abort_cmd
.wqe_com
,
8750 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
8751 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
8753 * The abort handler will send us CMD_ABORT_XRI_CN or
8754 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
8756 bf_set(wqe_cmnd
, &wqe
->abort_cmd
.wqe_com
, CMD_ABORT_XRI_CX
);
8757 bf_set(wqe_qosd
, &wqe
->abort_cmd
.wqe_com
, 1);
8758 bf_set(wqe_lenloc
, &wqe
->abort_cmd
.wqe_com
,
8759 LPFC_WQE_LENLOC_NONE
);
8760 cmnd
= CMD_ABORT_XRI_CX
;
8761 command_type
= OTHER_COMMAND
;
8764 case CMD_XMIT_BLS_RSP64_CX
:
8765 ndlp
= (struct lpfc_nodelist
*)iocbq
->context1
;
8766 /* As BLS ABTS RSP WQE is very different from other WQEs,
8767 * we re-construct this WQE here based on information in
8768 * iocbq from scratch.
8770 memset(wqe
, 0, sizeof(union lpfc_wqe
));
8771 /* OX_ID is invariable to who sent ABTS to CT exchange */
8772 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
8773 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_rsp
));
8774 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_rsp
) ==
8775 LPFC_ABTS_UNSOL_INT
) {
8776 /* ABTS sent by initiator to CT exchange, the
8777 * RX_ID field will be filled with the newly
8778 * allocated responder XRI.
8780 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8781 iocbq
->sli4_xritag
);
8783 /* ABTS sent by responder to CT exchange, the
8784 * RX_ID field will be filled with the responder
8787 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
8788 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_rsp
));
8790 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
8791 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
8794 bf_set(wqe_els_did
, &wqe
->xmit_bls_rsp
.wqe_dest
,
8796 bf_set(xmit_bls_rsp64_temprpi
, &wqe
->xmit_bls_rsp
,
8797 iocbq
->iocb
.ulpContext
);
8798 bf_set(wqe_ct
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8799 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
8800 phba
->vpi_ids
[phba
->pport
->vpi
]);
8801 bf_set(wqe_qosd
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
8802 bf_set(wqe_lenloc
, &wqe
->xmit_bls_rsp
.wqe_com
,
8803 LPFC_WQE_LENLOC_NONE
);
8804 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
8805 command_type
= OTHER_COMMAND
;
8806 if (iocbq
->iocb
.un
.xseq64
.w5
.hcsw
.Rctl
== FC_RCTL_BA_RJT
) {
8807 bf_set(xmit_bls_rsp64_rjt_vspec
, &wqe
->xmit_bls_rsp
,
8808 bf_get(lpfc_vndr_code
, &iocbq
->iocb
.un
.bls_rsp
));
8809 bf_set(xmit_bls_rsp64_rjt_expc
, &wqe
->xmit_bls_rsp
,
8810 bf_get(lpfc_rsn_expln
, &iocbq
->iocb
.un
.bls_rsp
));
8811 bf_set(xmit_bls_rsp64_rjt_rsnc
, &wqe
->xmit_bls_rsp
,
8812 bf_get(lpfc_rsn_code
, &iocbq
->iocb
.un
.bls_rsp
));
8816 case CMD_XRI_ABORTED_CX
:
8817 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
8818 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
8819 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
8820 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
8821 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
8823 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8824 "2014 Invalid command 0x%x\n",
8825 iocbq
->iocb
.ulpCommand
);
8830 if (iocbq
->iocb_flag
& LPFC_IO_DIF_PASS
)
8831 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_PASSTHRU
);
8832 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_STRIP
)
8833 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_STRIP
);
8834 else if (iocbq
->iocb_flag
& LPFC_IO_DIF_INSERT
)
8835 bf_set(wqe_dif
, &wqe
->generic
.wqe_com
, LPFC_WQE_DIF_INSERT
);
8836 iocbq
->iocb_flag
&= ~(LPFC_IO_DIF_PASS
| LPFC_IO_DIF_STRIP
|
8837 LPFC_IO_DIF_INSERT
);
8838 bf_set(wqe_xri_tag
, &wqe
->generic
.wqe_com
, xritag
);
8839 bf_set(wqe_reqtag
, &wqe
->generic
.wqe_com
, iocbq
->iotag
);
8840 wqe
->generic
.wqe_com
.abort_tag
= abort_tag
;
8841 bf_set(wqe_cmd_type
, &wqe
->generic
.wqe_com
, command_type
);
8842 bf_set(wqe_cmnd
, &wqe
->generic
.wqe_com
, cmnd
);
8843 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, iocbq
->iocb
.ulpClass
);
8844 bf_set(wqe_cqid
, &wqe
->generic
.wqe_com
, LPFC_WQE_CQ_ID_DEFAULT
);
8849 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
8850 * @phba: Pointer to HBA context object.
8851 * @ring_number: SLI ring number to issue iocb on.
8852 * @piocb: Pointer to command iocb.
8853 * @flag: Flag indicating if this command can be put into txq.
8855 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
8856 * an iocb command to an HBA with SLI-4 interface spec.
8858 * This function is called with hbalock held. The function will return success
8859 * after it successfully submit the iocb to firmware or after adding to the
8863 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
8864 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8866 struct lpfc_sglq
*sglq
;
8867 union lpfc_wqe
*wqe
;
8868 union lpfc_wqe128 wqe128
;
8869 struct lpfc_queue
*wq
;
8870 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
8872 lockdep_assert_held(&phba
->hbalock
);
8875 * The WQE can be either 64 or 128 bytes,
8876 * so allocate space on the stack assuming the largest.
8878 wqe
= (union lpfc_wqe
*)&wqe128
;
8880 if (piocb
->sli4_xritag
== NO_XRI
) {
8881 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
8882 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
8885 if (!list_empty(&pring
->txq
)) {
8886 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8887 __lpfc_sli_ringtx_put(phba
,
8889 return IOCB_SUCCESS
;
8894 sglq
= __lpfc_sli_get_sglq(phba
, piocb
);
8896 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
8897 __lpfc_sli_ringtx_put(phba
,
8900 return IOCB_SUCCESS
;
8906 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
8907 /* These IO's already have an XRI and a mapped sgl. */
8911 * This is a continuation of a commandi,(CX) so this
8912 * sglq is on the active list
8914 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_lxritag
);
8920 piocb
->sli4_lxritag
= sglq
->sli4_lxritag
;
8921 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
8922 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
8926 if (lpfc_sli4_iocb2wqe(phba
, piocb
, wqe
))
8929 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
8930 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
8931 if (!phba
->cfg_fof
|| (!(piocb
->iocb_flag
& LPFC_IO_OAS
))) {
8932 wq
= phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
];
8934 wq
= phba
->sli4_hba
.oas_wq
;
8936 if (lpfc_sli4_wq_put(wq
, wqe
))
8939 if (unlikely(!phba
->sli4_hba
.els_wq
))
8941 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, wqe
))
8944 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
8950 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
8952 * This routine wraps the actual lockless version for issusing IOCB function
8953 * pointer from the lpfc_hba struct.
8956 * IOCB_ERROR - Error
8957 * IOCB_SUCCESS - Success
8961 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
8962 struct lpfc_iocbq
*piocb
, uint32_t flag
)
8964 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
8968 * lpfc_sli_api_table_setup - Set up sli api function jump table
8969 * @phba: The hba struct for which this call is being executed.
8970 * @dev_grp: The HBA PCI-Device group number.
8972 * This routine sets up the SLI interface API function jump table in @phba
8974 * Returns: 0 - success, -ENODEV - failure.
8977 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
8981 case LPFC_PCI_DEV_LP
:
8982 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
8983 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
8985 case LPFC_PCI_DEV_OC
:
8986 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
8987 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
8990 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8991 "1419 Invalid HBA PCI-device group: 0x%x\n",
8996 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
9001 * lpfc_sli_calc_ring - Calculates which ring to use
9002 * @phba: Pointer to HBA context object.
9003 * @ring_number: Initial ring
9004 * @piocb: Pointer to command iocb.
9006 * For SLI4, FCP IO can deferred to one fo many WQs, based on
9007 * fcp_wqidx, thus we need to calculate the corresponding ring.
9008 * Since ABORTS must go on the same WQ of the command they are
9009 * aborting, we use command's fcp_wqidx.
9012 lpfc_sli_calc_ring(struct lpfc_hba
*phba
, uint32_t ring_number
,
9013 struct lpfc_iocbq
*piocb
)
9015 if (phba
->sli_rev
< LPFC_SLI_REV4
)
9018 if (piocb
->iocb_flag
& (LPFC_IO_FCP
| LPFC_USE_FCPWQIDX
)) {
9019 if (!(phba
->cfg_fof
) ||
9020 (!(piocb
->iocb_flag
& LPFC_IO_FOF
))) {
9021 if (unlikely(!phba
->sli4_hba
.fcp_wq
))
9022 return LPFC_HBA_ERROR
;
9024 * for abort iocb fcp_wqidx should already
9025 * be setup based on what work queue we used.
9027 if (!(piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
))
9029 lpfc_sli4_scmd_to_wqidx_distr(phba
,
9031 ring_number
= MAX_SLI3_CONFIGURED_RINGS
+
9034 if (unlikely(!phba
->sli4_hba
.oas_wq
))
9035 return LPFC_HBA_ERROR
;
9036 piocb
->fcp_wqidx
= 0;
9037 ring_number
= LPFC_FCP_OAS_RING
;
9044 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
9045 * @phba: Pointer to HBA context object.
9046 * @pring: Pointer to driver SLI ring object.
9047 * @piocb: Pointer to command iocb.
9048 * @flag: Flag indicating if this command can be put into txq.
9050 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
9051 * function. This function gets the hbalock and calls
9052 * __lpfc_sli_issue_iocb function and will return the error returned
9053 * by __lpfc_sli_issue_iocb function. This wrapper is used by
9054 * functions which do not hold hbalock.
9057 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
9058 struct lpfc_iocbq
*piocb
, uint32_t flag
)
9060 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
9061 struct lpfc_sli_ring
*pring
;
9062 struct lpfc_queue
*fpeq
;
9063 struct lpfc_eqe
*eqe
;
9064 unsigned long iflags
;
9067 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
9068 ring_number
= lpfc_sli_calc_ring(phba
, ring_number
, piocb
);
9069 if (unlikely(ring_number
== LPFC_HBA_ERROR
))
9071 idx
= piocb
->fcp_wqidx
;
9073 pring
= &phba
->sli
.ring
[ring_number
];
9074 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
9075 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
9076 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
9078 if (lpfc_fcp_look_ahead
&& (piocb
->iocb_flag
& LPFC_IO_FCP
)) {
9079 fcp_eq_hdl
= &phba
->sli4_hba
.fcp_eq_hdl
[idx
];
9081 if (atomic_dec_and_test(&fcp_eq_hdl
->
9084 /* Get associated EQ with this index */
9085 fpeq
= phba
->sli4_hba
.hba_eq
[idx
];
9087 /* Turn off interrupts from this EQ */
9088 lpfc_sli4_eq_clr_intr(fpeq
);
9091 * Process all the events on FCP EQ
9093 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
9094 lpfc_sli4_hba_handle_eqe(phba
,
9096 fpeq
->EQ_processed
++;
9099 /* Always clear and re-arm the EQ */
9100 lpfc_sli4_eq_release(fpeq
,
9103 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
9106 /* For now, SLI2/3 will still use hbalock */
9107 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9108 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
9109 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9115 * lpfc_extra_ring_setup - Extra ring setup function
9116 * @phba: Pointer to HBA context object.
9118 * This function is called while driver attaches with the
9119 * HBA to setup the extra ring. The extra ring is used
9120 * only when driver needs to support target mode functionality
9121 * or IP over FC functionalities.
9123 * This function is called with no lock held.
9126 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
9128 struct lpfc_sli
*psli
;
9129 struct lpfc_sli_ring
*pring
;
9133 /* Adjust cmd/rsp ring iocb entries more evenly */
9135 /* Take some away from the FCP ring */
9136 pring
= &psli
->ring
[psli
->fcp_ring
];
9137 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9138 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9139 pring
->sli
.sli3
.numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9140 pring
->sli
.sli3
.numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9142 /* and give them to the extra ring */
9143 pring
= &psli
->ring
[psli
->extra_ring
];
9145 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9146 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9147 pring
->sli
.sli3
.numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9148 pring
->sli
.sli3
.numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9150 /* Setup default profile for this ring */
9151 pring
->iotag_max
= 4096;
9152 pring
->num_mask
= 1;
9153 pring
->prt
[0].profile
= 0; /* Mask 0 */
9154 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
9155 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
9156 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
9160 /* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
9161 * @phba: Pointer to HBA context object.
9162 * @iocbq: Pointer to iocb object.
9164 * The async_event handler calls this routine when it receives
9165 * an ASYNC_STATUS_CN event from the port. The port generates
9166 * this event when an Abort Sequence request to an rport fails
9167 * twice in succession. The abort could be originated by the
9168 * driver or by the port. The ABTS could have been for an ELS
9169 * or FCP IO. The port only generates this event when an ABTS
9170 * fails to complete after one retry.
9173 lpfc_sli_abts_err_handler(struct lpfc_hba
*phba
,
9174 struct lpfc_iocbq
*iocbq
)
9176 struct lpfc_nodelist
*ndlp
= NULL
;
9177 uint16_t rpi
= 0, vpi
= 0;
9178 struct lpfc_vport
*vport
= NULL
;
9180 /* The rpi in the ulpContext is vport-sensitive. */
9181 vpi
= iocbq
->iocb
.un
.asyncstat
.sub_ctxt_tag
;
9182 rpi
= iocbq
->iocb
.ulpContext
;
9184 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9185 "3092 Port generated ABTS async event "
9186 "on vpi %d rpi %d status 0x%x\n",
9187 vpi
, rpi
, iocbq
->iocb
.ulpStatus
);
9189 vport
= lpfc_find_vport_by_vpid(phba
, vpi
);
9192 ndlp
= lpfc_findnode_rpi(vport
, rpi
);
9193 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
))
9196 if (iocbq
->iocb
.ulpStatus
== IOSTAT_LOCAL_REJECT
)
9197 lpfc_sli_abts_recover_port(vport
, ndlp
);
9201 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9202 "3095 Event Context not found, no "
9203 "action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
9204 iocbq
->iocb
.ulpContext
, iocbq
->iocb
.ulpStatus
,
9208 /* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
9209 * @phba: pointer to HBA context object.
9210 * @ndlp: nodelist pointer for the impacted rport.
9211 * @axri: pointer to the wcqe containing the failed exchange.
9213 * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
9214 * port. The port generates this event when an abort exchange request to an
9215 * rport fails twice in succession with no reply. The abort could be originated
9216 * by the driver or by the port. The ABTS could have been for an ELS or FCP IO.
9219 lpfc_sli4_abts_err_handler(struct lpfc_hba
*phba
,
9220 struct lpfc_nodelist
*ndlp
,
9221 struct sli4_wcqe_xri_aborted
*axri
)
9223 struct lpfc_vport
*vport
;
9224 uint32_t ext_status
= 0;
9226 if (!ndlp
|| !NLP_CHK_NODE_ACT(ndlp
)) {
9227 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9228 "3115 Node Context not found, driver "
9229 "ignoring abts err event\n");
9233 vport
= ndlp
->vport
;
9234 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9235 "3116 Port generated FCP XRI ABORT event on "
9236 "vpi %d rpi %d xri x%x status 0x%x parameter x%x\n",
9237 ndlp
->vport
->vpi
, phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
],
9238 bf_get(lpfc_wcqe_xa_xri
, axri
),
9239 bf_get(lpfc_wcqe_xa_status
, axri
),
9243 * Catch the ABTS protocol failure case. Older OCe FW releases returned
9244 * LOCAL_REJECT and 0 for a failed ABTS exchange and later OCe and
9245 * LPe FW releases returned LOCAL_REJECT and SEQUENCE_TIMEOUT.
9247 ext_status
= axri
->parameter
& IOERR_PARAM_MASK
;
9248 if ((bf_get(lpfc_wcqe_xa_status
, axri
) == IOSTAT_LOCAL_REJECT
) &&
9249 ((ext_status
== IOERR_SEQUENCE_TIMEOUT
) || (ext_status
== 0)))
9250 lpfc_sli_abts_recover_port(vport
, ndlp
);
9254 * lpfc_sli_async_event_handler - ASYNC iocb handler function
9255 * @phba: Pointer to HBA context object.
9256 * @pring: Pointer to driver SLI ring object.
9257 * @iocbq: Pointer to iocb object.
9259 * This function is called by the slow ring event handler
9260 * function when there is an ASYNC event iocb in the ring.
9261 * This function is called with no lock held.
9262 * Currently this function handles only temperature related
9263 * ASYNC events. The function decodes the temperature sensor
9264 * event message and posts events for the management applications.
9267 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
9268 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
9272 struct temp_event temp_event_data
;
9273 struct Scsi_Host
*shost
;
9276 icmd
= &iocbq
->iocb
;
9277 evt_code
= icmd
->un
.asyncstat
.evt_code
;
9280 case ASYNC_TEMP_WARN
:
9281 case ASYNC_TEMP_SAFE
:
9282 temp_event_data
.data
= (uint32_t) icmd
->ulpContext
;
9283 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
9284 if (evt_code
== ASYNC_TEMP_WARN
) {
9285 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
9286 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
9287 "0347 Adapter is very hot, please take "
9288 "corrective action. temperature : %d Celsius\n",
9289 (uint32_t) icmd
->ulpContext
);
9291 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
9292 lpfc_printf_log(phba
, KERN_ERR
, LOG_TEMP
,
9293 "0340 Adapter temperature is OK now. "
9294 "temperature : %d Celsius\n",
9295 (uint32_t) icmd
->ulpContext
);
9298 /* Send temperature change event to applications */
9299 shost
= lpfc_shost_from_vport(phba
->pport
);
9300 fc_host_post_vendor_event(shost
, fc_get_event_number(),
9301 sizeof(temp_event_data
), (char *) &temp_event_data
,
9304 case ASYNC_STATUS_CN
:
9305 lpfc_sli_abts_err_handler(phba
, iocbq
);
9308 iocb_w
= (uint32_t *) icmd
;
9309 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9310 "0346 Ring %d handler: unexpected ASYNC_STATUS"
9312 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
9313 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
9314 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
9315 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
9316 pring
->ringno
, icmd
->un
.asyncstat
.evt_code
,
9317 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
9318 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
9319 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
9320 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
9328 * lpfc_sli_setup - SLI ring setup function
9329 * @phba: Pointer to HBA context object.
9331 * lpfc_sli_setup sets up rings of the SLI interface with
9332 * number of iocbs per ring and iotags. This function is
9333 * called while driver attach to the HBA and before the
9334 * interrupts are enabled. So there is no need for locking.
9336 * This function always returns 0.
9339 lpfc_sli_setup(struct lpfc_hba
*phba
)
9341 int i
, totiocbsize
= 0;
9342 struct lpfc_sli
*psli
= &phba
->sli
;
9343 struct lpfc_sli_ring
*pring
;
9345 psli
->num_rings
= MAX_SLI3_CONFIGURED_RINGS
;
9346 if (phba
->sli_rev
== LPFC_SLI_REV4
)
9347 psli
->num_rings
+= phba
->cfg_fcp_io_channel
;
9349 psli
->fcp_ring
= LPFC_FCP_RING
;
9350 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
9351 psli
->extra_ring
= LPFC_EXTRA_RING
;
9353 psli
->iocbq_lookup
= NULL
;
9354 psli
->iocbq_lookup_len
= 0;
9355 psli
->last_iotag
= 0;
9357 for (i
= 0; i
< psli
->num_rings
; i
++) {
9358 pring
= &psli
->ring
[i
];
9360 case LPFC_FCP_RING
: /* ring 0 - FCP */
9361 /* numCiocb and numRiocb are used in config_port */
9362 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
9363 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
9364 pring
->sli
.sli3
.numCiocb
+=
9365 SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
9366 pring
->sli
.sli3
.numRiocb
+=
9367 SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
9368 pring
->sli
.sli3
.numCiocb
+=
9369 SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
9370 pring
->sli
.sli3
.numRiocb
+=
9371 SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
9372 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9373 SLI3_IOCB_CMD_SIZE
:
9375 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9376 SLI3_IOCB_RSP_SIZE
:
9378 pring
->iotag_ctr
= 0;
9380 (phba
->cfg_hba_queue_depth
* 2);
9381 pring
->fast_iotag
= pring
->iotag_max
;
9382 pring
->num_mask
= 0;
9384 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
9385 /* numCiocb and numRiocb are used in config_port */
9386 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
9387 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
9388 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9389 SLI3_IOCB_CMD_SIZE
:
9391 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9392 SLI3_IOCB_RSP_SIZE
:
9394 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
9395 pring
->num_mask
= 0;
9397 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
9398 /* numCiocb and numRiocb are used in config_port */
9399 pring
->sli
.sli3
.numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
9400 pring
->sli
.sli3
.numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
9401 pring
->sli
.sli3
.sizeCiocb
= (phba
->sli_rev
== 3) ?
9402 SLI3_IOCB_CMD_SIZE
:
9404 pring
->sli
.sli3
.sizeRiocb
= (phba
->sli_rev
== 3) ?
9405 SLI3_IOCB_RSP_SIZE
:
9407 pring
->fast_iotag
= 0;
9408 pring
->iotag_ctr
= 0;
9409 pring
->iotag_max
= 4096;
9410 pring
->lpfc_sli_rcv_async_status
=
9411 lpfc_sli_async_event_handler
;
9412 pring
->num_mask
= LPFC_MAX_RING_MASK
;
9413 pring
->prt
[0].profile
= 0; /* Mask 0 */
9414 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
9415 pring
->prt
[0].type
= FC_TYPE_ELS
;
9416 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
9417 lpfc_els_unsol_event
;
9418 pring
->prt
[1].profile
= 0; /* Mask 1 */
9419 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
9420 pring
->prt
[1].type
= FC_TYPE_ELS
;
9421 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
9422 lpfc_els_unsol_event
;
9423 pring
->prt
[2].profile
= 0; /* Mask 2 */
9424 /* NameServer Inquiry */
9425 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
9427 pring
->prt
[2].type
= FC_TYPE_CT
;
9428 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
9429 lpfc_ct_unsol_event
;
9430 pring
->prt
[3].profile
= 0; /* Mask 3 */
9431 /* NameServer response */
9432 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
9434 pring
->prt
[3].type
= FC_TYPE_CT
;
9435 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
9436 lpfc_ct_unsol_event
;
9439 totiocbsize
+= (pring
->sli
.sli3
.numCiocb
*
9440 pring
->sli
.sli3
.sizeCiocb
) +
9441 (pring
->sli
.sli3
.numRiocb
* pring
->sli
.sli3
.sizeRiocb
);
9443 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
9444 /* Too many cmd / rsp ring entries in SLI2 SLIM */
9445 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
9446 "SLI2 SLIM Data: x%x x%lx\n",
9447 phba
->brd_no
, totiocbsize
,
9448 (unsigned long) MAX_SLIM_IOCB_SIZE
);
9450 if (phba
->cfg_multi_ring_support
== 2)
9451 lpfc_extra_ring_setup(phba
);
9457 * lpfc_sli_queue_setup - Queue initialization function
9458 * @phba: Pointer to HBA context object.
9460 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
9461 * ring. This function also initializes ring indices of each ring.
9462 * This function is called during the initialization of the SLI
9463 * interface of an HBA.
9464 * This function is called with no lock held and always returns
9468 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
9470 struct lpfc_sli
*psli
;
9471 struct lpfc_sli_ring
*pring
;
9475 spin_lock_irq(&phba
->hbalock
);
9476 INIT_LIST_HEAD(&psli
->mboxq
);
9477 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
9478 /* Initialize list headers for txq and txcmplq as double linked lists */
9479 for (i
= 0; i
< psli
->num_rings
; i
++) {
9480 pring
= &psli
->ring
[i
];
9482 pring
->sli
.sli3
.next_cmdidx
= 0;
9483 pring
->sli
.sli3
.local_getidx
= 0;
9484 pring
->sli
.sli3
.cmdidx
= 0;
9486 INIT_LIST_HEAD(&pring
->txq
);
9487 INIT_LIST_HEAD(&pring
->txcmplq
);
9488 INIT_LIST_HEAD(&pring
->iocb_continueq
);
9489 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
9490 INIT_LIST_HEAD(&pring
->postbufq
);
9491 spin_lock_init(&pring
->ring_lock
);
9493 spin_unlock_irq(&phba
->hbalock
);
9498 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
9499 * @phba: Pointer to HBA context object.
9501 * This routine flushes the mailbox command subsystem. It will unconditionally
9502 * flush all the mailbox commands in the three possible stages in the mailbox
9503 * command sub-system: pending mailbox command queue; the outstanding mailbox
9504 * command; and completed mailbox command queue. It is caller's responsibility
9505 * to make sure that the driver is in the proper state to flush the mailbox
9506 * command sub-system. Namely, the posting of mailbox commands into the
9507 * pending mailbox command queue from the various clients must be stopped;
9508 * either the HBA is in a state that it will never works on the outstanding
9509 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
9510 * mailbox command has been completed.
9513 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
9515 LIST_HEAD(completions
);
9516 struct lpfc_sli
*psli
= &phba
->sli
;
9518 unsigned long iflag
;
9520 /* Flush all the mailbox commands in the mbox system */
9521 spin_lock_irqsave(&phba
->hbalock
, iflag
);
9522 /* The pending mailbox command queue */
9523 list_splice_init(&phba
->sli
.mboxq
, &completions
);
9524 /* The outstanding active mailbox command */
9525 if (psli
->mbox_active
) {
9526 list_add_tail(&psli
->mbox_active
->list
, &completions
);
9527 psli
->mbox_active
= NULL
;
9528 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
9530 /* The completed mailbox command queue */
9531 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
9532 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
9534 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
9535 while (!list_empty(&completions
)) {
9536 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
9537 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
9539 pmb
->mbox_cmpl(phba
, pmb
);
9544 * lpfc_sli_host_down - Vport cleanup function
9545 * @vport: Pointer to virtual port object.
9547 * lpfc_sli_host_down is called to clean up the resources
9548 * associated with a vport before destroying virtual
9549 * port data structures.
9550 * This function does following operations:
9551 * - Free discovery resources associated with this virtual
9553 * - Free iocbs associated with this virtual port in
9555 * - Send abort for all iocb commands associated with this
9558 * This function is called with no lock held and always returns 1.
9561 lpfc_sli_host_down(struct lpfc_vport
*vport
)
9563 LIST_HEAD(completions
);
9564 struct lpfc_hba
*phba
= vport
->phba
;
9565 struct lpfc_sli
*psli
= &phba
->sli
;
9566 struct lpfc_sli_ring
*pring
;
9567 struct lpfc_iocbq
*iocb
, *next_iocb
;
9569 unsigned long flags
= 0;
9570 uint16_t prev_pring_flag
;
9572 lpfc_cleanup_discovery_resources(vport
);
9574 spin_lock_irqsave(&phba
->hbalock
, flags
);
9575 for (i
= 0; i
< psli
->num_rings
; i
++) {
9576 pring
= &psli
->ring
[i
];
9577 prev_pring_flag
= pring
->flag
;
9578 /* Only slow rings */
9579 if (pring
->ringno
== LPFC_ELS_RING
) {
9580 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9581 /* Set the lpfc data pending flag */
9582 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9585 * Error everything on the txq since these iocbs have not been
9586 * given to the FW yet.
9588 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
9589 if (iocb
->vport
!= vport
)
9591 list_move_tail(&iocb
->list
, &completions
);
9594 /* Next issue ABTS for everything on the txcmplq */
9595 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
9597 if (iocb
->vport
!= vport
)
9599 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
9602 pring
->flag
= prev_pring_flag
;
9605 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9607 /* Cancel all the IOCBs from the completions list */
9608 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9614 * lpfc_sli_hba_down - Resource cleanup function for the HBA
9615 * @phba: Pointer to HBA context object.
9617 * This function cleans up all iocb, buffers, mailbox commands
9618 * while shutting down the HBA. This function is called with no
9619 * lock held and always returns 1.
9620 * This function does the following to cleanup driver resources:
9621 * - Free discovery resources for each virtual port
9622 * - Cleanup any pending fabric iocbs
9623 * - Iterate through the iocb txq and free each entry
9625 * - Free up any buffer posted to the HBA
9626 * - Free mailbox commands in the mailbox queue.
9629 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
9631 LIST_HEAD(completions
);
9632 struct lpfc_sli
*psli
= &phba
->sli
;
9633 struct lpfc_sli_ring
*pring
;
9634 struct lpfc_dmabuf
*buf_ptr
;
9635 unsigned long flags
= 0;
9638 /* Shutdown the mailbox command sub-system */
9639 lpfc_sli_mbox_sys_shutdown(phba
, LPFC_MBX_WAIT
);
9641 lpfc_hba_down_prep(phba
);
9643 lpfc_fabric_abort_hba(phba
);
9645 spin_lock_irqsave(&phba
->hbalock
, flags
);
9646 for (i
= 0; i
< psli
->num_rings
; i
++) {
9647 pring
= &psli
->ring
[i
];
9648 /* Only slow rings */
9649 if (pring
->ringno
== LPFC_ELS_RING
) {
9650 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
9651 /* Set the lpfc data pending flag */
9652 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
9656 * Error everything on the txq since these iocbs have not been
9657 * given to the FW yet.
9659 list_splice_init(&pring
->txq
, &completions
);
9661 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9663 /* Cancel all the IOCBs from the completions list */
9664 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
9667 spin_lock_irqsave(&phba
->hbalock
, flags
);
9668 list_splice_init(&phba
->elsbuf
, &completions
);
9669 phba
->elsbuf_cnt
= 0;
9670 phba
->elsbuf_prev_cnt
= 0;
9671 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
9673 while (!list_empty(&completions
)) {
9674 list_remove_head(&completions
, buf_ptr
,
9675 struct lpfc_dmabuf
, list
);
9676 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
9680 /* Return any active mbox cmds */
9681 del_timer_sync(&psli
->mbox_tmo
);
9683 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
9684 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
9685 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
9691 * lpfc_sli_pcimem_bcopy - SLI memory copy function
9692 * @srcp: Source memory pointer.
9693 * @destp: Destination memory pointer.
9694 * @cnt: Number of words required to be copied.
9696 * This function is used for copying data between driver memory
9697 * and the SLI memory. This function also changes the endianness
9698 * of each word if native endianness is different from SLI
9699 * endianness. This function can be called with or without
9703 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9705 uint32_t *src
= srcp
;
9706 uint32_t *dest
= destp
;
9710 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
9712 ldata
= le32_to_cpu(ldata
);
9721 * lpfc_sli_bemem_bcopy - SLI memory copy function
9722 * @srcp: Source memory pointer.
9723 * @destp: Destination memory pointer.
9724 * @cnt: Number of words required to be copied.
9726 * This function is used for copying data between a data structure
9727 * with big endian representation to local endianness.
9728 * This function can be called with or without lock.
9731 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
9733 uint32_t *src
= srcp
;
9734 uint32_t *dest
= destp
;
9738 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
9740 ldata
= be32_to_cpu(ldata
);
9748 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
9749 * @phba: Pointer to HBA context object.
9750 * @pring: Pointer to driver SLI ring object.
9751 * @mp: Pointer to driver buffer object.
9753 * This function is called with no lock held.
9754 * It always return zero after adding the buffer to the postbufq
9758 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9759 struct lpfc_dmabuf
*mp
)
9761 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
9763 spin_lock_irq(&phba
->hbalock
);
9764 list_add_tail(&mp
->list
, &pring
->postbufq
);
9765 pring
->postbufq_cnt
++;
9766 spin_unlock_irq(&phba
->hbalock
);
9771 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
9772 * @phba: Pointer to HBA context object.
9774 * When HBQ is enabled, buffers are searched based on tags. This function
9775 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
9776 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
9777 * does not conflict with tags of buffer posted for unsolicited events.
9778 * The function returns the allocated tag. The function is called with
9782 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
9784 spin_lock_irq(&phba
->hbalock
);
9785 phba
->buffer_tag_count
++;
9787 * Always set the QUE_BUFTAG_BIT to distiguish between
9788 * a tag assigned by HBQ.
9790 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
9791 spin_unlock_irq(&phba
->hbalock
);
9792 return phba
->buffer_tag_count
;
9796 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
9797 * @phba: Pointer to HBA context object.
9798 * @pring: Pointer to driver SLI ring object.
9801 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
9802 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
9803 * iocb is posted to the response ring with the tag of the buffer.
9804 * This function searches the pring->postbufq list using the tag
9805 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
9806 * iocb. If the buffer is found then lpfc_dmabuf object of the
9807 * buffer is returned to the caller else NULL is returned.
9808 * This function is called with no lock held.
9810 struct lpfc_dmabuf
*
9811 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9814 struct lpfc_dmabuf
*mp
, *next_mp
;
9815 struct list_head
*slp
= &pring
->postbufq
;
9817 /* Search postbufq, from the beginning, looking for a match on tag */
9818 spin_lock_irq(&phba
->hbalock
);
9819 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9820 if (mp
->buffer_tag
== tag
) {
9821 list_del_init(&mp
->list
);
9822 pring
->postbufq_cnt
--;
9823 spin_unlock_irq(&phba
->hbalock
);
9828 spin_unlock_irq(&phba
->hbalock
);
9829 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9830 "0402 Cannot find virtual addr for buffer tag on "
9831 "ring %d Data x%lx x%p x%p x%x\n",
9832 pring
->ringno
, (unsigned long) tag
,
9833 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9839 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
9840 * @phba: Pointer to HBA context object.
9841 * @pring: Pointer to driver SLI ring object.
9842 * @phys: DMA address of the buffer.
9844 * This function searches the buffer list using the dma_address
9845 * of unsolicited event to find the driver's lpfc_dmabuf object
9846 * corresponding to the dma_address. The function returns the
9847 * lpfc_dmabuf object if a buffer is found else it returns NULL.
9848 * This function is called by the ct and els unsolicited event
9849 * handlers to get the buffer associated with the unsolicited
9852 * This function is called with no lock held.
9854 struct lpfc_dmabuf
*
9855 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9858 struct lpfc_dmabuf
*mp
, *next_mp
;
9859 struct list_head
*slp
= &pring
->postbufq
;
9861 /* Search postbufq, from the beginning, looking for a match on phys */
9862 spin_lock_irq(&phba
->hbalock
);
9863 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
9864 if (mp
->phys
== phys
) {
9865 list_del_init(&mp
->list
);
9866 pring
->postbufq_cnt
--;
9867 spin_unlock_irq(&phba
->hbalock
);
9872 spin_unlock_irq(&phba
->hbalock
);
9873 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
9874 "0410 Cannot find virtual addr for mapped buf on "
9875 "ring %d Data x%llx x%p x%p x%x\n",
9876 pring
->ringno
, (unsigned long long)phys
,
9877 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
9882 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
9883 * @phba: Pointer to HBA context object.
9884 * @cmdiocb: Pointer to driver command iocb object.
9885 * @rspiocb: Pointer to driver response iocb object.
9887 * This function is the completion handler for the abort iocbs for
9888 * ELS commands. This function is called from the ELS ring event
9889 * handler with no lock held. This function frees memory resources
9890 * associated with the abort iocb.
9893 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9894 struct lpfc_iocbq
*rspiocb
)
9896 IOCB_t
*irsp
= &rspiocb
->iocb
;
9897 uint16_t abort_iotag
, abort_context
;
9898 struct lpfc_iocbq
*abort_iocb
= NULL
;
9900 if (irsp
->ulpStatus
) {
9903 * Assume that the port already completed and returned, or
9904 * will return the iocb. Just Log the message.
9906 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
9907 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
9909 spin_lock_irq(&phba
->hbalock
);
9910 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
9911 if (abort_iotag
!= 0 &&
9912 abort_iotag
<= phba
->sli
.last_iotag
)
9914 phba
->sli
.iocbq_lookup
[abort_iotag
];
9916 /* For sli4 the abort_tag is the XRI,
9917 * so the abort routine puts the iotag of the iocb
9918 * being aborted in the context field of the abort
9921 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
9923 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
9924 "0327 Cannot abort els iocb %p "
9925 "with tag %x context %x, abort status %x, "
9927 abort_iocb
, abort_iotag
, abort_context
,
9928 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
9930 spin_unlock_irq(&phba
->hbalock
);
9932 lpfc_sli_release_iocbq(phba
, cmdiocb
);
9937 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
9938 * @phba: Pointer to HBA context object.
9939 * @cmdiocb: Pointer to driver command iocb object.
9940 * @rspiocb: Pointer to driver response iocb object.
9942 * The function is called from SLI ring event handler with no
9943 * lock held. This function is the completion handler for ELS commands
9944 * which are aborted. The function frees memory resources used for
9945 * the aborted ELS commands.
9948 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
9949 struct lpfc_iocbq
*rspiocb
)
9951 IOCB_t
*irsp
= &rspiocb
->iocb
;
9953 /* ELS cmd tag <ulpIoTag> completes */
9954 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
9955 "0139 Ignoring ELS cmd tag x%x completion Data: "
9957 irsp
->ulpIoTag
, irsp
->ulpStatus
,
9958 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
9959 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
9960 lpfc_ct_free_iocb(phba
, cmdiocb
);
9962 lpfc_els_free_iocb(phba
, cmdiocb
);
9967 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
9968 * @phba: Pointer to HBA context object.
9969 * @pring: Pointer to driver SLI ring object.
9970 * @cmdiocb: Pointer to driver command iocb object.
9972 * This function issues an abort iocb for the provided command iocb down to
9973 * the port. Other than the case the outstanding command iocb is an abort
9974 * request, this function issues abort out unconditionally. This function is
9975 * called with hbalock held. The function returns 0 when it fails due to
9976 * memory allocation failure or when the command iocb is an abort request.
9979 lpfc_sli_abort_iotag_issue(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
9980 struct lpfc_iocbq
*cmdiocb
)
9982 struct lpfc_vport
*vport
= cmdiocb
->vport
;
9983 struct lpfc_iocbq
*abtsiocbp
;
9984 IOCB_t
*icmd
= NULL
;
9985 IOCB_t
*iabt
= NULL
;
9988 unsigned long iflags
;
9990 lockdep_assert_held(&phba
->hbalock
);
9993 * There are certain command types we don't want to abort. And we
9994 * don't want to abort commands that are already in the process of
9997 icmd
= &cmdiocb
->iocb
;
9998 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
9999 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
10000 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
10003 /* issue ABTS for this IOCB based on iotag */
10004 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
10005 if (abtsiocbp
== NULL
)
10008 /* This signals the response to set the correct status
10009 * before calling the completion handler
10011 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
10013 iabt
= &abtsiocbp
->iocb
;
10014 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
10015 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
10016 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
10017 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
10018 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
10021 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
10023 iabt
->ulpClass
= icmd
->ulpClass
;
10025 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10026 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
10027 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
10028 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
10029 if (cmdiocb
->iocb_flag
& LPFC_IO_FOF
)
10030 abtsiocbp
->iocb_flag
|= LPFC_IO_FOF
;
10032 if (phba
->link_state
>= LPFC_LINK_UP
)
10033 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
10035 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
10037 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
10039 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
10040 "0339 Abort xri x%x, original iotag x%x, "
10041 "abort cmd iotag x%x\n",
10042 iabt
->un
.acxri
.abortIoTag
,
10043 iabt
->un
.acxri
.abortContextTag
,
10046 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
10048 lpfc_sli_calc_ring(phba
, pring
->ringno
, abtsiocbp
);
10049 if (unlikely(ring_number
== LPFC_HBA_ERROR
))
10051 pring
= &phba
->sli
.ring
[ring_number
];
10052 /* Note: both hbalock and ring_lock need to be set here */
10053 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
10054 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10056 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
10058 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10063 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
10066 * Caller to this routine should check for IOCB_ERROR
10067 * and handle it properly. This routine no longer removes
10068 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10074 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
10075 * @phba: Pointer to HBA context object.
10076 * @pring: Pointer to driver SLI ring object.
10077 * @cmdiocb: Pointer to driver command iocb object.
10079 * This function issues an abort iocb for the provided command iocb. In case
10080 * of unloading, the abort iocb will not be issued to commands on the ELS
10081 * ring. Instead, the callback function shall be changed to those commands
10082 * so that nothing happens when them finishes. This function is called with
10083 * hbalock held. The function returns 0 when the command iocb is an abort
10087 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
10088 struct lpfc_iocbq
*cmdiocb
)
10090 struct lpfc_vport
*vport
= cmdiocb
->vport
;
10091 int retval
= IOCB_ERROR
;
10092 IOCB_t
*icmd
= NULL
;
10094 lockdep_assert_held(&phba
->hbalock
);
10097 * There are certain command types we don't want to abort. And we
10098 * don't want to abort commands that are already in the process of
10101 icmd
= &cmdiocb
->iocb
;
10102 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
10103 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
10104 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
10108 * If we're unloading, don't abort iocb on the ELS ring, but change
10109 * the callback so that nothing happens when it finishes.
10111 if ((vport
->load_flag
& FC_UNLOADING
) &&
10112 (pring
->ringno
== LPFC_ELS_RING
)) {
10113 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
10114 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
10116 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
10117 goto abort_iotag_exit
;
10120 /* Now, we try to issue the abort to the cmdiocb out */
10121 retval
= lpfc_sli_abort_iotag_issue(phba
, pring
, cmdiocb
);
10125 * Caller to this routine should check for IOCB_ERROR
10126 * and handle it properly. This routine no longer removes
10127 * iocb off txcmplq and call compl in case of IOCB_ERROR.
10133 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
10134 * @phba: pointer to lpfc HBA data structure.
10136 * This routine will abort all pending and outstanding iocbs to an HBA.
10139 lpfc_sli_hba_iocb_abort(struct lpfc_hba
*phba
)
10141 struct lpfc_sli
*psli
= &phba
->sli
;
10142 struct lpfc_sli_ring
*pring
;
10145 for (i
= 0; i
< psli
->num_rings
; i
++) {
10146 pring
= &psli
->ring
[i
];
10147 lpfc_sli_abort_iocb_ring(phba
, pring
);
10152 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
10153 * @iocbq: Pointer to driver iocb object.
10154 * @vport: Pointer to driver virtual port object.
10155 * @tgt_id: SCSI ID of the target.
10156 * @lun_id: LUN ID of the scsi device.
10157 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
10159 * This function acts as an iocb filter for functions which abort or count
10160 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
10161 * 0 if the filtering criteria is met for the given iocb and will return
10162 * 1 if the filtering criteria is not met.
10163 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
10164 * given iocb is for the SCSI device specified by vport, tgt_id and
10165 * lun_id parameter.
10166 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
10167 * given iocb is for the SCSI target specified by vport and tgt_id
10169 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
10170 * given iocb is for the SCSI host associated with the given vport.
10171 * This function is called with no locks held.
10174 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
10175 uint16_t tgt_id
, uint64_t lun_id
,
10176 lpfc_ctx_cmd ctx_cmd
)
10178 struct lpfc_scsi_buf
*lpfc_cmd
;
10181 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
10184 if (iocbq
->vport
!= vport
)
10187 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
10189 if (lpfc_cmd
->pCmd
== NULL
)
10194 if ((lpfc_cmd
->rdata
->pnode
) &&
10195 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
10196 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
10200 if ((lpfc_cmd
->rdata
->pnode
) &&
10201 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
10204 case LPFC_CTX_HOST
:
10208 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
10209 __func__
, ctx_cmd
);
10217 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
10218 * @vport: Pointer to virtual port.
10219 * @tgt_id: SCSI ID of the target.
10220 * @lun_id: LUN ID of the scsi device.
10221 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10223 * This function returns number of FCP commands pending for the vport.
10224 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
10225 * commands pending on the vport associated with SCSI device specified
10226 * by tgt_id and lun_id parameters.
10227 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
10228 * commands pending on the vport associated with SCSI target specified
10229 * by tgt_id parameter.
10230 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
10231 * commands pending on the vport.
10232 * This function returns the number of iocbs which satisfy the filter.
10233 * This function is called without any lock held.
10236 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
10237 lpfc_ctx_cmd ctx_cmd
)
10239 struct lpfc_hba
*phba
= vport
->phba
;
10240 struct lpfc_iocbq
*iocbq
;
10243 spin_lock_irq(&phba
->hbalock
);
10244 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
10245 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10247 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
10251 spin_unlock_irq(&phba
->hbalock
);
10257 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
10258 * @phba: Pointer to HBA context object
10259 * @cmdiocb: Pointer to command iocb object.
10260 * @rspiocb: Pointer to response iocb object.
10262 * This function is called when an aborted FCP iocb completes. This
10263 * function is called by the ring event handler with no lock held.
10264 * This function frees the iocb.
10267 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
10268 struct lpfc_iocbq
*rspiocb
)
10270 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10271 "3096 ABORT_XRI_CN completing on rpi x%x "
10272 "original iotag x%x, abort cmd iotag x%x "
10273 "status 0x%x, reason 0x%x\n",
10274 cmdiocb
->iocb
.un
.acxri
.abortContextTag
,
10275 cmdiocb
->iocb
.un
.acxri
.abortIoTag
,
10276 cmdiocb
->iotag
, rspiocb
->iocb
.ulpStatus
,
10277 rspiocb
->iocb
.un
.ulpWord
[4]);
10278 lpfc_sli_release_iocbq(phba
, cmdiocb
);
10283 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
10284 * @vport: Pointer to virtual port.
10285 * @pring: Pointer to driver SLI ring object.
10286 * @tgt_id: SCSI ID of the target.
10287 * @lun_id: LUN ID of the scsi device.
10288 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10290 * This function sends an abort command for every SCSI command
10291 * associated with the given virtual port pending on the ring
10292 * filtered by lpfc_sli_validate_fcp_iocb function.
10293 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
10294 * FCP iocbs associated with lun specified by tgt_id and lun_id
10296 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
10297 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10298 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
10299 * FCP iocbs associated with virtual port.
10300 * This function returns number of iocbs it failed to abort.
10301 * This function is called with no locks held.
10304 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
10305 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
10307 struct lpfc_hba
*phba
= vport
->phba
;
10308 struct lpfc_iocbq
*iocbq
;
10309 struct lpfc_iocbq
*abtsiocb
;
10310 IOCB_t
*cmd
= NULL
;
10311 int errcnt
= 0, ret_val
= 0;
10314 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
10315 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10317 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
10322 * If the iocbq is already being aborted, don't take a second
10323 * action, but do count it.
10325 if (iocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
10328 /* issue ABTS for this IOCB based on iotag */
10329 abtsiocb
= lpfc_sli_get_iocbq(phba
);
10330 if (abtsiocb
== NULL
) {
10335 /* indicate the IO is being aborted by the driver. */
10336 iocbq
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
10338 cmd
= &iocbq
->iocb
;
10339 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
10340 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
10341 if (phba
->sli_rev
== LPFC_SLI_REV4
)
10342 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
10344 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
10345 abtsiocb
->iocb
.ulpLe
= 1;
10346 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
10347 abtsiocb
->vport
= vport
;
10349 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10350 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
10351 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
10352 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
10353 if (iocbq
->iocb_flag
& LPFC_IO_FOF
)
10354 abtsiocb
->iocb_flag
|= LPFC_IO_FOF
;
10356 if (lpfc_is_link_up(phba
))
10357 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
10359 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
10361 /* Setup callback routine and issue the command. */
10362 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
10363 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10365 if (ret_val
== IOCB_ERROR
) {
10366 lpfc_sli_release_iocbq(phba
, abtsiocb
);
10376 * lpfc_sli_abort_taskmgmt - issue abort for all commands on a host/target/LUN
10377 * @vport: Pointer to virtual port.
10378 * @pring: Pointer to driver SLI ring object.
10379 * @tgt_id: SCSI ID of the target.
10380 * @lun_id: LUN ID of the scsi device.
10381 * @taskmgmt_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
10383 * This function sends an abort command for every SCSI command
10384 * associated with the given virtual port pending on the ring
10385 * filtered by lpfc_sli_validate_fcp_iocb function.
10386 * When taskmgmt_cmd == LPFC_CTX_LUN, the function sends abort only to the
10387 * FCP iocbs associated with lun specified by tgt_id and lun_id
10389 * When taskmgmt_cmd == LPFC_CTX_TGT, the function sends abort only to the
10390 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
10391 * When taskmgmt_cmd == LPFC_CTX_HOST, the function sends abort to all
10392 * FCP iocbs associated with virtual port.
10393 * This function returns number of iocbs it aborted .
10394 * This function is called with no locks held right after a taskmgmt
10398 lpfc_sli_abort_taskmgmt(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
10399 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd cmd
)
10401 struct lpfc_hba
*phba
= vport
->phba
;
10402 struct lpfc_scsi_buf
*lpfc_cmd
;
10403 struct lpfc_iocbq
*abtsiocbq
;
10404 struct lpfc_nodelist
*ndlp
;
10405 struct lpfc_iocbq
*iocbq
;
10407 int sum
, i
, ret_val
;
10408 unsigned long iflags
;
10409 struct lpfc_sli_ring
*pring_s4
;
10410 uint32_t ring_number
;
10412 spin_lock_irq(&phba
->hbalock
);
10414 /* all I/Os are in process of being flushed */
10415 if (phba
->hba_flag
& HBA_FCP_IOQ_FLUSH
) {
10416 spin_unlock_irq(&phba
->hbalock
);
10421 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
10422 iocbq
= phba
->sli
.iocbq_lookup
[i
];
10424 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
10429 * If the iocbq is already being aborted, don't take a second
10430 * action, but do count it.
10432 if (iocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
10435 /* issue ABTS for this IOCB based on iotag */
10436 abtsiocbq
= __lpfc_sli_get_iocbq(phba
);
10437 if (abtsiocbq
== NULL
)
10440 icmd
= &iocbq
->iocb
;
10441 abtsiocbq
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
10442 abtsiocbq
->iocb
.un
.acxri
.abortContextTag
= icmd
->ulpContext
;
10443 if (phba
->sli_rev
== LPFC_SLI_REV4
)
10444 abtsiocbq
->iocb
.un
.acxri
.abortIoTag
=
10445 iocbq
->sli4_xritag
;
10447 abtsiocbq
->iocb
.un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
10448 abtsiocbq
->iocb
.ulpLe
= 1;
10449 abtsiocbq
->iocb
.ulpClass
= icmd
->ulpClass
;
10450 abtsiocbq
->vport
= vport
;
10452 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
10453 abtsiocbq
->fcp_wqidx
= iocbq
->fcp_wqidx
;
10454 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
10455 abtsiocbq
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
10456 if (iocbq
->iocb_flag
& LPFC_IO_FOF
)
10457 abtsiocbq
->iocb_flag
|= LPFC_IO_FOF
;
10459 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
10460 ndlp
= lpfc_cmd
->rdata
->pnode
;
10462 if (lpfc_is_link_up(phba
) &&
10463 (ndlp
&& ndlp
->nlp_state
== NLP_STE_MAPPED_NODE
))
10464 abtsiocbq
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
10466 abtsiocbq
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
10468 /* Setup callback routine and issue the command. */
10469 abtsiocbq
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
10472 * Indicate the IO is being aborted by the driver and set
10473 * the caller's flag into the aborted IO.
10475 iocbq
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
10477 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
10478 ring_number
= MAX_SLI3_CONFIGURED_RINGS
+
10480 pring_s4
= &phba
->sli
.ring
[ring_number
];
10481 /* Note: both hbalock and ring_lock must be set here */
10482 spin_lock_irqsave(&pring_s4
->ring_lock
, iflags
);
10483 ret_val
= __lpfc_sli_issue_iocb(phba
, pring_s4
->ringno
,
10485 spin_unlock_irqrestore(&pring_s4
->ring_lock
, iflags
);
10487 ret_val
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
,
10492 if (ret_val
== IOCB_ERROR
)
10493 __lpfc_sli_release_iocbq(phba
, abtsiocbq
);
10497 spin_unlock_irq(&phba
->hbalock
);
10502 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
10503 * @phba: Pointer to HBA context object.
10504 * @cmdiocbq: Pointer to command iocb.
10505 * @rspiocbq: Pointer to response iocb.
10507 * This function is the completion handler for iocbs issued using
10508 * lpfc_sli_issue_iocb_wait function. This function is called by the
10509 * ring event handler function without any lock held. This function
10510 * can be called from both worker thread context and interrupt
10511 * context. This function also can be called from other thread which
10512 * cleans up the SLI layer objects.
10513 * This function copy the contents of the response iocb to the
10514 * response iocb memory object provided by the caller of
10515 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
10516 * sleeps for the iocb completion.
10519 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
10520 struct lpfc_iocbq
*cmdiocbq
,
10521 struct lpfc_iocbq
*rspiocbq
)
10523 wait_queue_head_t
*pdone_q
;
10524 unsigned long iflags
;
10525 struct lpfc_scsi_buf
*lpfc_cmd
;
10527 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10528 if (cmdiocbq
->iocb_flag
& LPFC_IO_WAKE_TMO
) {
10531 * A time out has occurred for the iocb. If a time out
10532 * completion handler has been supplied, call it. Otherwise,
10533 * just free the iocbq.
10536 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10537 cmdiocbq
->iocb_cmpl
= cmdiocbq
->wait_iocb_cmpl
;
10538 cmdiocbq
->wait_iocb_cmpl
= NULL
;
10539 if (cmdiocbq
->iocb_cmpl
)
10540 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, NULL
);
10542 lpfc_sli_release_iocbq(phba
, cmdiocbq
);
10546 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
10547 if (cmdiocbq
->context2
&& rspiocbq
)
10548 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
10549 &rspiocbq
->iocb
, sizeof(IOCB_t
));
10551 /* Set the exchange busy flag for task management commands */
10552 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
10553 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
10554 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
10556 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
10559 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
10562 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10567 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
10568 * @phba: Pointer to HBA context object..
10569 * @piocbq: Pointer to command iocb.
10570 * @flag: Flag to test.
10572 * This routine grabs the hbalock and then test the iocb_flag to
10573 * see if the passed in flag is set.
10575 * 1 if flag is set.
10576 * 0 if flag is not set.
10579 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
10580 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
10582 unsigned long iflags
;
10585 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10586 ret
= piocbq
->iocb_flag
& flag
;
10587 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10593 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
10594 * @phba: Pointer to HBA context object..
10595 * @pring: Pointer to sli ring.
10596 * @piocb: Pointer to command iocb.
10597 * @prspiocbq: Pointer to response iocb.
10598 * @timeout: Timeout in number of seconds.
10600 * This function issues the iocb to firmware and waits for the
10601 * iocb to complete. The iocb_cmpl field of the shall be used
10602 * to handle iocbs which time out. If the field is NULL, the
10603 * function shall free the iocbq structure. If more clean up is
10604 * needed, the caller is expected to provide a completion function
10605 * that will provide the needed clean up. If the iocb command is
10606 * not completed within timeout seconds, the function will either
10607 * free the iocbq structure (if iocb_cmpl == NULL) or execute the
10608 * completion function set in the iocb_cmpl field and then return
10609 * a status of IOCB_TIMEDOUT. The caller should not free the iocb
10610 * resources if this function returns IOCB_TIMEDOUT.
10611 * The function waits for the iocb completion using an
10612 * non-interruptible wait.
10613 * This function will sleep while waiting for iocb completion.
10614 * So, this function should not be called from any context which
10615 * does not allow sleeping. Due to the same reason, this function
10616 * cannot be called with interrupt disabled.
10617 * This function assumes that the iocb completions occur while
10618 * this function sleep. So, this function cannot be called from
10619 * the thread which process iocb completion for this ring.
10620 * This function clears the iocb_flag of the iocb object before
10621 * issuing the iocb and the iocb completion handler sets this
10622 * flag and wakes this thread when the iocb completes.
10623 * The contents of the response iocb will be copied to prspiocbq
10624 * by the completion handler when the command completes.
10625 * This function returns IOCB_SUCCESS when success.
10626 * This function is called with no lock held.
10629 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
10630 uint32_t ring_number
,
10631 struct lpfc_iocbq
*piocb
,
10632 struct lpfc_iocbq
*prspiocbq
,
10635 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
10636 long timeleft
, timeout_req
= 0;
10637 int retval
= IOCB_SUCCESS
;
10639 struct lpfc_iocbq
*iocb
;
10641 int txcmplq_cnt
= 0;
10642 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
10643 unsigned long iflags
;
10644 bool iocb_completed
= true;
10647 * If the caller has provided a response iocbq buffer, then context2
10648 * is NULL or its an error.
10651 if (piocb
->context2
)
10653 piocb
->context2
= prspiocbq
;
10656 piocb
->wait_iocb_cmpl
= piocb
->iocb_cmpl
;
10657 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
10658 piocb
->context_un
.wait_queue
= &done_q
;
10659 piocb
->iocb_flag
&= ~(LPFC_IO_WAKE
| LPFC_IO_WAKE_TMO
);
10661 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
10662 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10664 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
10665 writel(creg_val
, phba
->HCregaddr
);
10666 readl(phba
->HCregaddr
); /* flush */
10669 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
10670 SLI_IOCB_RET_IOCB
);
10671 if (retval
== IOCB_SUCCESS
) {
10672 timeout_req
= msecs_to_jiffies(timeout
* 1000);
10673 timeleft
= wait_event_timeout(done_q
,
10674 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
10676 spin_lock_irqsave(&phba
->hbalock
, iflags
);
10677 if (!(piocb
->iocb_flag
& LPFC_IO_WAKE
)) {
10680 * IOCB timed out. Inform the wake iocb wait
10681 * completion function and set local status
10684 iocb_completed
= false;
10685 piocb
->iocb_flag
|= LPFC_IO_WAKE_TMO
;
10687 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
10688 if (iocb_completed
) {
10689 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10690 "0331 IOCB wake signaled\n");
10691 /* Note: we are not indicating if the IOCB has a success
10692 * status or not - that's for the caller to check.
10693 * IOCB_SUCCESS means just that the command was sent and
10694 * completed. Not that it completed successfully.
10696 } else if (timeleft
== 0) {
10697 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10698 "0338 IOCB wait timeout error - no "
10699 "wake response Data x%x\n", timeout
);
10700 retval
= IOCB_TIMEDOUT
;
10702 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10703 "0330 IOCB wake NOT set, "
10705 timeout
, (timeleft
/ jiffies
));
10706 retval
= IOCB_TIMEDOUT
;
10708 } else if (retval
== IOCB_BUSY
) {
10709 if (phba
->cfg_log_verbose
& LOG_SLI
) {
10710 list_for_each_entry(iocb
, &pring
->txq
, list
) {
10713 list_for_each_entry(iocb
, &pring
->txcmplq
, list
) {
10716 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10717 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
10718 phba
->iocb_cnt
, txq_cnt
, txcmplq_cnt
);
10722 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
10723 "0332 IOCB wait issue failed, Data x%x\n",
10725 retval
= IOCB_ERROR
;
10728 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
10729 if (lpfc_readl(phba
->HCregaddr
, &creg_val
))
10731 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
10732 writel(creg_val
, phba
->HCregaddr
);
10733 readl(phba
->HCregaddr
); /* flush */
10737 piocb
->context2
= NULL
;
10739 piocb
->context_un
.wait_queue
= NULL
;
10740 piocb
->iocb_cmpl
= NULL
;
10745 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
10746 * @phba: Pointer to HBA context object.
10747 * @pmboxq: Pointer to driver mailbox object.
10748 * @timeout: Timeout in number of seconds.
10750 * This function issues the mailbox to firmware and waits for the
10751 * mailbox command to complete. If the mailbox command is not
10752 * completed within timeout seconds, it returns MBX_TIMEOUT.
10753 * The function waits for the mailbox completion using an
10754 * interruptible wait. If the thread is woken up due to a
10755 * signal, MBX_TIMEOUT error is returned to the caller. Caller
10756 * should not free the mailbox resources, if this function returns
10758 * This function will sleep while waiting for mailbox completion.
10759 * So, this function should not be called from any context which
10760 * does not allow sleeping. Due to the same reason, this function
10761 * cannot be called with interrupt disabled.
10762 * This function assumes that the mailbox completion occurs while
10763 * this function sleep. So, this function cannot be called from
10764 * the worker thread which processes mailbox completion.
10765 * This function is called in the context of HBA management
10767 * This function returns MBX_SUCCESS when successful.
10768 * This function is called with no lock held.
10771 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
10774 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
10775 MAILBOX_t
*mb
= NULL
;
10777 unsigned long flag
;
10779 /* The caller might set context1 for extended buffer */
10780 if (pmboxq
->context1
)
10781 mb
= (MAILBOX_t
*)pmboxq
->context1
;
10783 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
10784 /* setup wake call as IOCB callback */
10785 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
10786 /* setup context field to pass wait_queue pointer to wake function */
10787 pmboxq
->context1
= &done_q
;
10789 /* now issue the command */
10790 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
10791 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
10792 wait_event_interruptible_timeout(done_q
,
10793 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
10794 msecs_to_jiffies(timeout
* 1000));
10796 spin_lock_irqsave(&phba
->hbalock
, flag
);
10797 /* restore the possible extended buffer for free resource */
10798 pmboxq
->context1
= (uint8_t *)mb
;
10800 * if LPFC_MBX_WAKE flag is set the mailbox is completed
10801 * else do not free the resources.
10803 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
10804 retval
= MBX_SUCCESS
;
10806 retval
= MBX_TIMEOUT
;
10807 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10809 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
10811 /* restore the possible extended buffer for free resource */
10812 pmboxq
->context1
= (uint8_t *)mb
;
10819 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
10820 * @phba: Pointer to HBA context.
10822 * This function is called to shutdown the driver's mailbox sub-system.
10823 * It first marks the mailbox sub-system is in a block state to prevent
10824 * the asynchronous mailbox command from issued off the pending mailbox
10825 * command queue. If the mailbox command sub-system shutdown is due to
10826 * HBA error conditions such as EEH or ERATT, this routine shall invoke
10827 * the mailbox sub-system flush routine to forcefully bring down the
10828 * mailbox sub-system. Otherwise, if it is due to normal condition (such
10829 * as with offline or HBA function reset), this routine will wait for the
10830 * outstanding mailbox command to complete before invoking the mailbox
10831 * sub-system flush routine to gracefully bring down mailbox sub-system.
10834 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
, int mbx_action
)
10836 struct lpfc_sli
*psli
= &phba
->sli
;
10837 unsigned long timeout
;
10839 if (mbx_action
== LPFC_MBX_NO_WAIT
) {
10840 /* delay 100ms for port state */
10842 lpfc_sli_mbox_sys_flush(phba
);
10845 timeout
= msecs_to_jiffies(LPFC_MBOX_TMO
* 1000) + jiffies
;
10847 spin_lock_irq(&phba
->hbalock
);
10848 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
10850 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
10851 /* Determine how long we might wait for the active mailbox
10852 * command to be gracefully completed by firmware.
10854 if (phba
->sli
.mbox_active
)
10855 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
10856 phba
->sli
.mbox_active
) *
10858 spin_unlock_irq(&phba
->hbalock
);
10860 while (phba
->sli
.mbox_active
) {
10861 /* Check active mailbox complete status every 2ms */
10863 if (time_after(jiffies
, timeout
))
10864 /* Timeout, let the mailbox flush routine to
10865 * forcefully release active mailbox command
10870 spin_unlock_irq(&phba
->hbalock
);
10872 lpfc_sli_mbox_sys_flush(phba
);
10876 * lpfc_sli_eratt_read - read sli-3 error attention events
10877 * @phba: Pointer to HBA context.
10879 * This function is called to read the SLI3 device error attention registers
10880 * for possible error attention events. The caller must hold the hostlock
10881 * with spin_lock_irq().
10883 * This function returns 1 when there is Error Attention in the Host Attention
10884 * Register and returns 0 otherwise.
10887 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
10891 /* Read chip Host Attention (HA) register */
10892 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
10895 if (ha_copy
& HA_ERATT
) {
10896 /* Read host status register to retrieve error event */
10897 if (lpfc_sli_read_hs(phba
))
10900 /* Check if there is a deferred error condition is active */
10901 if ((HS_FFER1
& phba
->work_hs
) &&
10902 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
10903 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
10904 phba
->hba_flag
|= DEFER_ERATT
;
10905 /* Clear all interrupt enable conditions */
10906 writel(0, phba
->HCregaddr
);
10907 readl(phba
->HCregaddr
);
10910 /* Set the driver HA work bitmap */
10911 phba
->work_ha
|= HA_ERATT
;
10912 /* Indicate polling handles this ERATT */
10913 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10919 /* Set the driver HS work bitmap */
10920 phba
->work_hs
|= UNPLUG_ERR
;
10921 /* Set the driver HA work bitmap */
10922 phba
->work_ha
|= HA_ERATT
;
10923 /* Indicate polling handles this ERATT */
10924 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10929 * lpfc_sli4_eratt_read - read sli-4 error attention events
10930 * @phba: Pointer to HBA context.
10932 * This function is called to read the SLI4 device error attention registers
10933 * for possible error attention events. The caller must hold the hostlock
10934 * with spin_lock_irq().
10936 * This function returns 1 when there is Error Attention in the Host Attention
10937 * Register and returns 0 otherwise.
10940 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
10942 uint32_t uerr_sta_hi
, uerr_sta_lo
;
10943 uint32_t if_type
, portsmphr
;
10944 struct lpfc_register portstat_reg
;
10947 * For now, use the SLI4 device internal unrecoverable error
10948 * registers for error attention. This can be changed later.
10950 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
10952 case LPFC_SLI_INTF_IF_TYPE_0
:
10953 if (lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
,
10955 lpfc_readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
,
10957 phba
->work_hs
|= UNPLUG_ERR
;
10958 phba
->work_ha
|= HA_ERATT
;
10959 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10962 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
10963 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
10964 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10965 "1423 HBA Unrecoverable error: "
10966 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
10967 "ue_mask_lo_reg=0x%x, "
10968 "ue_mask_hi_reg=0x%x\n",
10969 uerr_sta_lo
, uerr_sta_hi
,
10970 phba
->sli4_hba
.ue_mask_lo
,
10971 phba
->sli4_hba
.ue_mask_hi
);
10972 phba
->work_status
[0] = uerr_sta_lo
;
10973 phba
->work_status
[1] = uerr_sta_hi
;
10974 phba
->work_ha
|= HA_ERATT
;
10975 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10979 case LPFC_SLI_INTF_IF_TYPE_2
:
10980 if (lpfc_readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
,
10981 &portstat_reg
.word0
) ||
10982 lpfc_readl(phba
->sli4_hba
.PSMPHRregaddr
,
10984 phba
->work_hs
|= UNPLUG_ERR
;
10985 phba
->work_ha
|= HA_ERATT
;
10986 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
10989 if (bf_get(lpfc_sliport_status_err
, &portstat_reg
)) {
10990 phba
->work_status
[0] =
10991 readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
10992 phba
->work_status
[1] =
10993 readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
10994 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10995 "2885 Port Status Event: "
10996 "port status reg 0x%x, "
10997 "port smphr reg 0x%x, "
10998 "error 1=0x%x, error 2=0x%x\n",
10999 portstat_reg
.word0
,
11001 phba
->work_status
[0],
11002 phba
->work_status
[1]);
11003 phba
->work_ha
|= HA_ERATT
;
11004 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
11008 case LPFC_SLI_INTF_IF_TYPE_1
:
11010 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11011 "2886 HBA Error Attention on unsupported "
11012 "if type %d.", if_type
);
11020 * lpfc_sli_check_eratt - check error attention events
11021 * @phba: Pointer to HBA context.
11023 * This function is called from timer soft interrupt context to check HBA's
11024 * error attention register bit for error attention events.
11026 * This function returns 1 when there is Error Attention in the Host Attention
11027 * Register and returns 0 otherwise.
11030 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
11034 /* If somebody is waiting to handle an eratt, don't process it
11035 * here. The brdkill function will do this.
11037 if (phba
->link_flag
& LS_IGNORE_ERATT
)
11040 /* Check if interrupt handler handles this ERATT */
11041 spin_lock_irq(&phba
->hbalock
);
11042 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
11043 /* Interrupt handler has handled ERATT */
11044 spin_unlock_irq(&phba
->hbalock
);
11049 * If there is deferred error attention, do not check for error
11052 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11053 spin_unlock_irq(&phba
->hbalock
);
11057 /* If PCI channel is offline, don't process it */
11058 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
11059 spin_unlock_irq(&phba
->hbalock
);
11063 switch (phba
->sli_rev
) {
11064 case LPFC_SLI_REV2
:
11065 case LPFC_SLI_REV3
:
11066 /* Read chip Host Attention (HA) register */
11067 ha_copy
= lpfc_sli_eratt_read(phba
);
11069 case LPFC_SLI_REV4
:
11070 /* Read device Uncoverable Error (UERR) registers */
11071 ha_copy
= lpfc_sli4_eratt_read(phba
);
11074 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11075 "0299 Invalid SLI revision (%d)\n",
11080 spin_unlock_irq(&phba
->hbalock
);
11086 * lpfc_intr_state_check - Check device state for interrupt handling
11087 * @phba: Pointer to HBA context.
11089 * This inline routine checks whether a device or its PCI slot is in a state
11090 * that the interrupt should be handled.
11092 * This function returns 0 if the device or the PCI slot is in a state that
11093 * interrupt should be handled, otherwise -EIO.
11096 lpfc_intr_state_check(struct lpfc_hba
*phba
)
11098 /* If the pci channel is offline, ignore all the interrupts */
11099 if (unlikely(pci_channel_offline(phba
->pcidev
)))
11102 /* Update device level interrupt statistics */
11103 phba
->sli
.slistat
.sli_intr
++;
11105 /* Ignore all interrupts during initialization. */
11106 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
11113 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
11114 * @irq: Interrupt number.
11115 * @dev_id: The device context pointer.
11117 * This function is directly called from the PCI layer as an interrupt
11118 * service routine when device with SLI-3 interface spec is enabled with
11119 * MSI-X multi-message interrupt mode and there are slow-path events in
11120 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
11121 * interrupt mode, this function is called as part of the device-level
11122 * interrupt handler. When the PCI slot is in error recovery or the HBA
11123 * is undergoing initialization, the interrupt handler will not process
11124 * the interrupt. The link attention and ELS ring attention events are
11125 * handled by the worker thread. The interrupt handler signals the worker
11126 * thread and returns for these events. This function is called without
11127 * any lock held. It gets the hbalock to access and update SLI data
11130 * This function returns IRQ_HANDLED when interrupt is handled else it
11131 * returns IRQ_NONE.
11134 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
11136 struct lpfc_hba
*phba
;
11137 uint32_t ha_copy
, hc_copy
;
11138 uint32_t work_ha_copy
;
11139 unsigned long status
;
11140 unsigned long iflag
;
11143 MAILBOX_t
*mbox
, *pmbox
;
11144 struct lpfc_vport
*vport
;
11145 struct lpfc_nodelist
*ndlp
;
11146 struct lpfc_dmabuf
*mp
;
11151 * Get the driver's phba structure from the dev_id and
11152 * assume the HBA is not interrupting.
11154 phba
= (struct lpfc_hba
*)dev_id
;
11156 if (unlikely(!phba
))
11160 * Stuff needs to be attented to when this function is invoked as an
11161 * individual interrupt handler in MSI-X multi-message interrupt mode
11163 if (phba
->intr_type
== MSIX
) {
11164 /* Check device state for handling interrupt */
11165 if (lpfc_intr_state_check(phba
))
11167 /* Need to read HA REG for slow-path events */
11168 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11169 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
11171 /* If somebody is waiting to handle an eratt don't process it
11172 * here. The brdkill function will do this.
11174 if (phba
->link_flag
& LS_IGNORE_ERATT
)
11175 ha_copy
&= ~HA_ERATT
;
11176 /* Check the need for handling ERATT in interrupt handler */
11177 if (ha_copy
& HA_ERATT
) {
11178 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
11179 /* ERATT polling has handled ERATT */
11180 ha_copy
&= ~HA_ERATT
;
11182 /* Indicate interrupt handler handles ERATT */
11183 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
11187 * If there is deferred error attention, do not check for any
11190 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11191 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11195 /* Clear up only attention source related to slow-path */
11196 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
))
11199 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
11200 HC_LAINT_ENA
| HC_ERINT_ENA
),
11202 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
11204 writel(hc_copy
, phba
->HCregaddr
);
11205 readl(phba
->HAregaddr
); /* flush */
11206 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11208 ha_copy
= phba
->ha_copy
;
11210 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
11212 if (work_ha_copy
) {
11213 if (work_ha_copy
& HA_LATT
) {
11214 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
11216 * Turn off Link Attention interrupts
11217 * until CLEAR_LA done
11219 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11220 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
11221 if (lpfc_readl(phba
->HCregaddr
, &control
))
11223 control
&= ~HC_LAINT_ENA
;
11224 writel(control
, phba
->HCregaddr
);
11225 readl(phba
->HCregaddr
); /* flush */
11226 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11229 work_ha_copy
&= ~HA_LATT
;
11232 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
11234 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
11235 * the only slow ring.
11237 status
= (work_ha_copy
&
11238 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
11239 status
>>= (4*LPFC_ELS_RING
);
11240 if (status
& HA_RXMASK
) {
11241 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11242 if (lpfc_readl(phba
->HCregaddr
, &control
))
11245 lpfc_debugfs_slow_ring_trc(phba
,
11246 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
11248 (uint32_t)phba
->sli
.slistat
.sli_intr
);
11250 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
11251 lpfc_debugfs_slow_ring_trc(phba
,
11252 "ISR Disable ring:"
11253 "pwork:x%x hawork:x%x wait:x%x",
11254 phba
->work_ha
, work_ha_copy
,
11255 (uint32_t)((unsigned long)
11256 &phba
->work_waitq
));
11259 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
11260 writel(control
, phba
->HCregaddr
);
11261 readl(phba
->HCregaddr
); /* flush */
11264 lpfc_debugfs_slow_ring_trc(phba
,
11265 "ISR slow ring: pwork:"
11266 "x%x hawork:x%x wait:x%x",
11267 phba
->work_ha
, work_ha_copy
,
11268 (uint32_t)((unsigned long)
11269 &phba
->work_waitq
));
11271 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11274 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11275 if (work_ha_copy
& HA_ERATT
) {
11276 if (lpfc_sli_read_hs(phba
))
11279 * Check if there is a deferred error condition
11282 if ((HS_FFER1
& phba
->work_hs
) &&
11283 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
11284 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
11286 phba
->hba_flag
|= DEFER_ERATT
;
11287 /* Clear all interrupt enable conditions */
11288 writel(0, phba
->HCregaddr
);
11289 readl(phba
->HCregaddr
);
11293 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
11294 pmb
= phba
->sli
.mbox_active
;
11295 pmbox
= &pmb
->u
.mb
;
11297 vport
= pmb
->vport
;
11299 /* First check out the status word */
11300 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
11301 if (pmbox
->mbxOwner
!= OWN_HOST
) {
11302 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11304 * Stray Mailbox Interrupt, mbxCommand <cmd>
11305 * mbxStatus <status>
11307 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11309 "(%d):0304 Stray Mailbox "
11310 "Interrupt mbxCommand x%x "
11312 (vport
? vport
->vpi
: 0),
11315 /* clear mailbox attention bit */
11316 work_ha_copy
&= ~HA_MBATT
;
11318 phba
->sli
.mbox_active
= NULL
;
11319 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11320 phba
->last_completion_time
= jiffies
;
11321 del_timer(&phba
->sli
.mbox_tmo
);
11322 if (pmb
->mbox_cmpl
) {
11323 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
11325 if (pmb
->out_ext_byte_len
&&
11327 lpfc_sli_pcimem_bcopy(
11330 pmb
->out_ext_byte_len
);
11332 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
11333 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
11335 lpfc_debugfs_disc_trc(vport
,
11336 LPFC_DISC_TRC_MBOX_VPORT
,
11337 "MBOX dflt rpi: : "
11338 "status:x%x rpi:x%x",
11339 (uint32_t)pmbox
->mbxStatus
,
11340 pmbox
->un
.varWords
[0], 0);
11342 if (!pmbox
->mbxStatus
) {
11343 mp
= (struct lpfc_dmabuf
*)
11345 ndlp
= (struct lpfc_nodelist
*)
11348 /* Reg_LOGIN of dflt RPI was
11349 * successful. new lets get
11350 * rid of the RPI using the
11351 * same mbox buffer.
11353 lpfc_unreg_login(phba
,
11355 pmbox
->un
.varWords
[0],
11358 lpfc_mbx_cmpl_dflt_rpi
;
11359 pmb
->context1
= mp
;
11360 pmb
->context2
= ndlp
;
11361 pmb
->vport
= vport
;
11362 rc
= lpfc_sli_issue_mbox(phba
,
11365 if (rc
!= MBX_BUSY
)
11366 lpfc_printf_log(phba
,
11368 LOG_MBOX
| LOG_SLI
,
11369 "0350 rc should have"
11370 "been MBX_BUSY\n");
11371 if (rc
!= MBX_NOT_FINISHED
)
11372 goto send_current_mbox
;
11376 &phba
->pport
->work_port_lock
,
11378 phba
->pport
->work_port_events
&=
11380 spin_unlock_irqrestore(
11381 &phba
->pport
->work_port_lock
,
11383 lpfc_mbox_cmpl_put(phba
, pmb
);
11386 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11388 if ((work_ha_copy
& HA_MBATT
) &&
11389 (phba
->sli
.mbox_active
== NULL
)) {
11391 /* Process next mailbox command if there is one */
11393 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
11395 } while (rc
== MBX_NOT_FINISHED
);
11396 if (rc
!= MBX_SUCCESS
)
11397 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11398 LOG_SLI
, "0349 rc should be "
11402 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11403 phba
->work_ha
|= work_ha_copy
;
11404 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11405 lpfc_worker_wake_up(phba
);
11407 return IRQ_HANDLED
;
11409 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11410 return IRQ_HANDLED
;
11412 } /* lpfc_sli_sp_intr_handler */
11415 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
11416 * @irq: Interrupt number.
11417 * @dev_id: The device context pointer.
11419 * This function is directly called from the PCI layer as an interrupt
11420 * service routine when device with SLI-3 interface spec is enabled with
11421 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
11422 * ring event in the HBA. However, when the device is enabled with either
11423 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
11424 * device-level interrupt handler. When the PCI slot is in error recovery
11425 * or the HBA is undergoing initialization, the interrupt handler will not
11426 * process the interrupt. The SCSI FCP fast-path ring event are handled in
11427 * the intrrupt context. This function is called without any lock held.
11428 * It gets the hbalock to access and update SLI data structures.
11430 * This function returns IRQ_HANDLED when interrupt is handled else it
11431 * returns IRQ_NONE.
11434 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
11436 struct lpfc_hba
*phba
;
11438 unsigned long status
;
11439 unsigned long iflag
;
11441 /* Get the driver's phba structure from the dev_id and
11442 * assume the HBA is not interrupting.
11444 phba
= (struct lpfc_hba
*) dev_id
;
11446 if (unlikely(!phba
))
11450 * Stuff needs to be attented to when this function is invoked as an
11451 * individual interrupt handler in MSI-X multi-message interrupt mode
11453 if (phba
->intr_type
== MSIX
) {
11454 /* Check device state for handling interrupt */
11455 if (lpfc_intr_state_check(phba
))
11457 /* Need to read HA REG for FCP ring and other ring events */
11458 if (lpfc_readl(phba
->HAregaddr
, &ha_copy
))
11459 return IRQ_HANDLED
;
11460 /* Clear up only attention source related to fast-path */
11461 spin_lock_irqsave(&phba
->hbalock
, iflag
);
11463 * If there is deferred error attention, do not check for
11466 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11467 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11470 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
11472 readl(phba
->HAregaddr
); /* flush */
11473 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
11475 ha_copy
= phba
->ha_copy
;
11478 * Process all events on FCP ring. Take the optimized path for FCP IO.
11480 ha_copy
&= ~(phba
->work_ha_mask
);
11482 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
11483 status
>>= (4*LPFC_FCP_RING
);
11484 if (status
& HA_RXMASK
)
11485 lpfc_sli_handle_fast_ring_event(phba
,
11486 &phba
->sli
.ring
[LPFC_FCP_RING
],
11489 if (phba
->cfg_multi_ring_support
== 2) {
11491 * Process all events on extra ring. Take the optimized path
11492 * for extra ring IO.
11494 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
11495 status
>>= (4*LPFC_EXTRA_RING
);
11496 if (status
& HA_RXMASK
) {
11497 lpfc_sli_handle_fast_ring_event(phba
,
11498 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
11502 return IRQ_HANDLED
;
11503 } /* lpfc_sli_fp_intr_handler */
11506 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
11507 * @irq: Interrupt number.
11508 * @dev_id: The device context pointer.
11510 * This function is the HBA device-level interrupt handler to device with
11511 * SLI-3 interface spec, called from the PCI layer when either MSI or
11512 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
11513 * requires driver attention. This function invokes the slow-path interrupt
11514 * attention handling function and fast-path interrupt attention handling
11515 * function in turn to process the relevant HBA attention events. This
11516 * function is called without any lock held. It gets the hbalock to access
11517 * and update SLI data structures.
11519 * This function returns IRQ_HANDLED when interrupt is handled, else it
11520 * returns IRQ_NONE.
11523 lpfc_sli_intr_handler(int irq
, void *dev_id
)
11525 struct lpfc_hba
*phba
;
11526 irqreturn_t sp_irq_rc
, fp_irq_rc
;
11527 unsigned long status1
, status2
;
11531 * Get the driver's phba structure from the dev_id and
11532 * assume the HBA is not interrupting.
11534 phba
= (struct lpfc_hba
*) dev_id
;
11536 if (unlikely(!phba
))
11539 /* Check device state for handling interrupt */
11540 if (lpfc_intr_state_check(phba
))
11543 spin_lock(&phba
->hbalock
);
11544 if (lpfc_readl(phba
->HAregaddr
, &phba
->ha_copy
)) {
11545 spin_unlock(&phba
->hbalock
);
11546 return IRQ_HANDLED
;
11549 if (unlikely(!phba
->ha_copy
)) {
11550 spin_unlock(&phba
->hbalock
);
11552 } else if (phba
->ha_copy
& HA_ERATT
) {
11553 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
11554 /* ERATT polling has handled ERATT */
11555 phba
->ha_copy
&= ~HA_ERATT
;
11557 /* Indicate interrupt handler handles ERATT */
11558 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
11562 * If there is deferred error attention, do not check for any interrupt.
11564 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
11565 spin_unlock(&phba
->hbalock
);
11569 /* Clear attention sources except link and error attentions */
11570 if (lpfc_readl(phba
->HCregaddr
, &hc_copy
)) {
11571 spin_unlock(&phba
->hbalock
);
11572 return IRQ_HANDLED
;
11574 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
11575 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
11577 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
11578 writel(hc_copy
, phba
->HCregaddr
);
11579 readl(phba
->HAregaddr
); /* flush */
11580 spin_unlock(&phba
->hbalock
);
11583 * Invokes slow-path host attention interrupt handling as appropriate.
11586 /* status of events with mailbox and link attention */
11587 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
11589 /* status of events with ELS ring */
11590 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
11591 status2
>>= (4*LPFC_ELS_RING
);
11593 if (status1
|| (status2
& HA_RXMASK
))
11594 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
11596 sp_irq_rc
= IRQ_NONE
;
11599 * Invoke fast-path host attention interrupt handling as appropriate.
11602 /* status of events with FCP ring */
11603 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
11604 status1
>>= (4*LPFC_FCP_RING
);
11606 /* status of events with extra ring */
11607 if (phba
->cfg_multi_ring_support
== 2) {
11608 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
11609 status2
>>= (4*LPFC_EXTRA_RING
);
11613 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
11614 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
11616 fp_irq_rc
= IRQ_NONE
;
11618 /* Return device-level interrupt handling status */
11619 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
11620 } /* lpfc_sli_intr_handler */
11623 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
11624 * @phba: pointer to lpfc hba data structure.
11626 * This routine is invoked by the worker thread to process all the pending
11627 * SLI4 FCP abort XRI events.
11629 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
11631 struct lpfc_cq_event
*cq_event
;
11633 /* First, declare the fcp xri abort event has been handled */
11634 spin_lock_irq(&phba
->hbalock
);
11635 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
11636 spin_unlock_irq(&phba
->hbalock
);
11637 /* Now, handle all the fcp xri abort events */
11638 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
11639 /* Get the first event from the head of the event queue */
11640 spin_lock_irq(&phba
->hbalock
);
11641 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
11642 cq_event
, struct lpfc_cq_event
, list
);
11643 spin_unlock_irq(&phba
->hbalock
);
11644 /* Notify aborted XRI for FCP work queue */
11645 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
11646 /* Free the event processed back to the free pool */
11647 lpfc_sli4_cq_event_release(phba
, cq_event
);
11652 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
11653 * @phba: pointer to lpfc hba data structure.
11655 * This routine is invoked by the worker thread to process all the pending
11656 * SLI4 els abort xri events.
11658 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
11660 struct lpfc_cq_event
*cq_event
;
11662 /* First, declare the els xri abort event has been handled */
11663 spin_lock_irq(&phba
->hbalock
);
11664 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
11665 spin_unlock_irq(&phba
->hbalock
);
11666 /* Now, handle all the els xri abort events */
11667 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
11668 /* Get the first event from the head of the event queue */
11669 spin_lock_irq(&phba
->hbalock
);
11670 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
11671 cq_event
, struct lpfc_cq_event
, list
);
11672 spin_unlock_irq(&phba
->hbalock
);
11673 /* Notify aborted XRI for ELS work queue */
11674 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
11675 /* Free the event processed back to the free pool */
11676 lpfc_sli4_cq_event_release(phba
, cq_event
);
11681 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
11682 * @phba: pointer to lpfc hba data structure
11683 * @pIocbIn: pointer to the rspiocbq
11684 * @pIocbOut: pointer to the cmdiocbq
11685 * @wcqe: pointer to the complete wcqe
11687 * This routine transfers the fields of a command iocbq to a response iocbq
11688 * by copying all the IOCB fields from command iocbq and transferring the
11689 * completion status information from the complete wcqe.
11692 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
11693 struct lpfc_iocbq
*pIocbIn
,
11694 struct lpfc_iocbq
*pIocbOut
,
11695 struct lpfc_wcqe_complete
*wcqe
)
11698 unsigned long iflags
;
11699 uint32_t status
, max_response
;
11700 struct lpfc_dmabuf
*dmabuf
;
11701 struct ulp_bde64
*bpl
, bde
;
11702 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
11704 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
11705 sizeof(struct lpfc_iocbq
) - offset
);
11706 /* Map WCQE parameters into irspiocb parameters */
11707 status
= bf_get(lpfc_wcqe_c_status
, wcqe
);
11708 pIocbIn
->iocb
.ulpStatus
= (status
& LPFC_IOCB_STATUS_MASK
);
11709 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
11710 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
11711 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
11712 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
11713 wcqe
->total_data_placed
;
11715 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11717 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
11718 switch (pIocbOut
->iocb
.ulpCommand
) {
11719 case CMD_ELS_REQUEST64_CR
:
11720 dmabuf
= (struct lpfc_dmabuf
*)pIocbOut
->context3
;
11721 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
11722 bde
.tus
.w
= le32_to_cpu(bpl
[1].tus
.w
);
11723 max_response
= bde
.tus
.f
.bdeSize
;
11725 case CMD_GEN_REQUEST64_CR
:
11727 if (!pIocbOut
->context3
)
11729 numBdes
= pIocbOut
->iocb
.un
.genreq64
.bdl
.bdeSize
/
11730 sizeof(struct ulp_bde64
);
11731 dmabuf
= (struct lpfc_dmabuf
*)pIocbOut
->context3
;
11732 bpl
= (struct ulp_bde64
*)dmabuf
->virt
;
11733 for (i
= 0; i
< numBdes
; i
++) {
11734 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
11735 if (bde
.tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
11736 max_response
+= bde
.tus
.f
.bdeSize
;
11740 max_response
= wcqe
->total_data_placed
;
11743 if (max_response
< wcqe
->total_data_placed
)
11744 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= max_response
;
11746 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
=
11747 wcqe
->total_data_placed
;
11750 /* Convert BG errors for completion status */
11751 if (status
== CQE_STATUS_DI_ERROR
) {
11752 pIocbIn
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
11754 if (bf_get(lpfc_wcqe_c_bg_edir
, wcqe
))
11755 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_RX_DMA_FAILED
;
11757 pIocbIn
->iocb
.un
.ulpWord
[4] = IOERR_TX_DMA_FAILED
;
11759 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
= 0;
11760 if (bf_get(lpfc_wcqe_c_bg_ge
, wcqe
)) /* Guard Check failed */
11761 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11762 BGS_GUARD_ERR_MASK
;
11763 if (bf_get(lpfc_wcqe_c_bg_ae
, wcqe
)) /* App Tag Check failed */
11764 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11765 BGS_APPTAG_ERR_MASK
;
11766 if (bf_get(lpfc_wcqe_c_bg_re
, wcqe
)) /* Ref Tag Check failed */
11767 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11768 BGS_REFTAG_ERR_MASK
;
11770 /* Check to see if there was any good data before the error */
11771 if (bf_get(lpfc_wcqe_c_bg_tdpv
, wcqe
)) {
11772 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11773 BGS_HI_WATER_MARK_PRESENT_MASK
;
11774 pIocbIn
->iocb
.unsli3
.sli3_bg
.bghm
=
11775 wcqe
->total_data_placed
;
11779 * Set ALL the error bits to indicate we don't know what
11780 * type of error it is.
11782 if (!pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
)
11783 pIocbIn
->iocb
.unsli3
.sli3_bg
.bgstat
|=
11784 (BGS_REFTAG_ERR_MASK
| BGS_APPTAG_ERR_MASK
|
11785 BGS_GUARD_ERR_MASK
);
11788 /* Pick up HBA exchange busy condition */
11789 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
11790 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11791 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
11792 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11797 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
11798 * @phba: Pointer to HBA context object.
11799 * @wcqe: Pointer to work-queue completion queue entry.
11801 * This routine handles an ELS work-queue completion event and construct
11802 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
11803 * discovery engine to handle.
11805 * Return: Pointer to the receive IOCBQ, NULL otherwise.
11807 static struct lpfc_iocbq
*
11808 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
11809 struct lpfc_iocbq
*irspiocbq
)
11811 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
11812 struct lpfc_iocbq
*cmdiocbq
;
11813 struct lpfc_wcqe_complete
*wcqe
;
11814 unsigned long iflags
;
11816 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
11817 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
11818 pring
->stats
.iocb_event
++;
11819 /* Look up the ELS command IOCB and create pseudo response IOCB */
11820 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
11821 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11822 /* Put the iocb back on the txcmplq */
11823 lpfc_sli_ringtxcmpl_put(phba
, pring
, cmdiocbq
);
11824 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
11826 if (unlikely(!cmdiocbq
)) {
11827 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11828 "0386 ELS complete with no corresponding "
11829 "cmdiocb: iotag (%d)\n",
11830 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
11831 lpfc_sli_release_iocbq(phba
, irspiocbq
);
11835 /* Fake the irspiocbq and copy necessary response information */
11836 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
11842 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
11843 * @phba: Pointer to HBA context object.
11844 * @cqe: Pointer to mailbox completion queue entry.
11846 * This routine process a mailbox completion queue entry with asynchrous
11849 * Return: true if work posted to worker thread, otherwise false.
11852 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11854 struct lpfc_cq_event
*cq_event
;
11855 unsigned long iflags
;
11857 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
11858 "0392 Async Event: word0:x%x, word1:x%x, "
11859 "word2:x%x, word3:x%x\n", mcqe
->word0
,
11860 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
11862 /* Allocate a new internal CQ_EVENT entry */
11863 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
11865 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11866 "0394 Failed to allocate CQ_EVENT entry\n");
11870 /* Move the CQE into an asynchronous event entry */
11871 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
11872 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11873 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
11874 /* Set the async event flag */
11875 phba
->hba_flag
|= ASYNC_EVENT
;
11876 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11882 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
11883 * @phba: Pointer to HBA context object.
11884 * @cqe: Pointer to mailbox completion queue entry.
11886 * This routine process a mailbox completion queue entry with mailbox
11887 * completion event.
11889 * Return: true if work posted to worker thread, otherwise false.
11892 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
11894 uint32_t mcqe_status
;
11895 MAILBOX_t
*mbox
, *pmbox
;
11896 struct lpfc_mqe
*mqe
;
11897 struct lpfc_vport
*vport
;
11898 struct lpfc_nodelist
*ndlp
;
11899 struct lpfc_dmabuf
*mp
;
11900 unsigned long iflags
;
11902 bool workposted
= false;
11905 /* If not a mailbox complete MCQE, out by checking mailbox consume */
11906 if (!bf_get(lpfc_trailer_completed
, mcqe
))
11907 goto out_no_mqe_complete
;
11909 /* Get the reference to the active mbox command */
11910 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11911 pmb
= phba
->sli
.mbox_active
;
11912 if (unlikely(!pmb
)) {
11913 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
11914 "1832 No pending MBOX command to handle\n");
11915 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11916 goto out_no_mqe_complete
;
11918 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11920 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
11922 vport
= pmb
->vport
;
11924 /* Reset heartbeat timer */
11925 phba
->last_completion_time
= jiffies
;
11926 del_timer(&phba
->sli
.mbox_tmo
);
11928 /* Move mbox data to caller's mailbox region, do endian swapping */
11929 if (pmb
->mbox_cmpl
&& mbox
)
11930 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
11933 * For mcqe errors, conditionally move a modified error code to
11934 * the mbox so that the error will not be missed.
11936 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
11937 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
11938 if (bf_get(lpfc_mqe_status
, mqe
) == MBX_SUCCESS
)
11939 bf_set(lpfc_mqe_status
, mqe
,
11940 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
11942 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
11943 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
11944 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
11945 "MBOX dflt rpi: status:x%x rpi:x%x",
11947 pmbox
->un
.varWords
[0], 0);
11948 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
11949 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
11950 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
11951 /* Reg_LOGIN of dflt RPI was successful. Now lets get
11952 * RID of the PPI using the same mbox buffer.
11954 lpfc_unreg_login(phba
, vport
->vpi
,
11955 pmbox
->un
.varWords
[0], pmb
);
11956 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
11957 pmb
->context1
= mp
;
11958 pmb
->context2
= ndlp
;
11959 pmb
->vport
= vport
;
11960 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
11961 if (rc
!= MBX_BUSY
)
11962 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
11963 LOG_SLI
, "0385 rc should "
11964 "have been MBX_BUSY\n");
11965 if (rc
!= MBX_NOT_FINISHED
)
11966 goto send_current_mbox
;
11969 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
11970 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
11971 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
11973 /* There is mailbox completion work to do */
11974 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11975 __lpfc_mbox_cmpl_put(phba
, pmb
);
11976 phba
->work_ha
|= HA_MBATT
;
11977 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11981 spin_lock_irqsave(&phba
->hbalock
, iflags
);
11982 /* Release the mailbox command posting token */
11983 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
11984 /* Setting active mailbox pointer need to be in sync to flag clear */
11985 phba
->sli
.mbox_active
= NULL
;
11986 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
11987 /* Wake up worker thread to post the next pending mailbox command */
11988 lpfc_worker_wake_up(phba
);
11989 out_no_mqe_complete
:
11990 if (bf_get(lpfc_trailer_consumed
, mcqe
))
11991 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
11996 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
11997 * @phba: Pointer to HBA context object.
11998 * @cqe: Pointer to mailbox completion queue entry.
12000 * This routine process a mailbox completion queue entry, it invokes the
12001 * proper mailbox complete handling or asynchrous event handling routine
12002 * according to the MCQE's async bit.
12004 * Return: true if work posted to worker thread, otherwise false.
12007 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
12009 struct lpfc_mcqe mcqe
;
12012 /* Copy the mailbox MCQE and convert endian order as needed */
12013 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
12015 /* Invoke the proper event handling routine */
12016 if (!bf_get(lpfc_trailer_async
, &mcqe
))
12017 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
12019 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
12024 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
12025 * @phba: Pointer to HBA context object.
12026 * @cq: Pointer to associated CQ
12027 * @wcqe: Pointer to work-queue completion queue entry.
12029 * This routine handles an ELS work-queue completion event.
12031 * Return: true if work posted to worker thread, otherwise false.
12034 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12035 struct lpfc_wcqe_complete
*wcqe
)
12037 struct lpfc_iocbq
*irspiocbq
;
12038 unsigned long iflags
;
12039 struct lpfc_sli_ring
*pring
= cq
->pring
;
12041 int txcmplq_cnt
= 0;
12042 int fcp_txcmplq_cnt
= 0;
12044 /* Get an irspiocbq for later ELS response processing use */
12045 irspiocbq
= lpfc_sli_get_iocbq(phba
);
12047 if (!list_empty(&pring
->txq
))
12049 if (!list_empty(&pring
->txcmplq
))
12051 if (!list_empty(&phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq
))
12053 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12054 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
12055 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
12056 txq_cnt
, phba
->iocb_cnt
,
12062 /* Save off the slow-path queue event for work thread to process */
12063 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
12064 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12065 list_add_tail(&irspiocbq
->cq_event
.list
,
12066 &phba
->sli4_hba
.sp_queue_event
);
12067 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
12068 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12074 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
12075 * @phba: Pointer to HBA context object.
12076 * @wcqe: Pointer to work-queue completion queue entry.
12078 * This routine handles slow-path WQ entry comsumed event by invoking the
12079 * proper WQ release routine to the slow-path WQ.
12082 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
12083 struct lpfc_wcqe_release
*wcqe
)
12085 /* sanity check on queue memory */
12086 if (unlikely(!phba
->sli4_hba
.els_wq
))
12088 /* Check for the slow-path ELS work queue */
12089 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
12090 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
12091 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
12093 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12094 "2579 Slow-path wqe consume event carries "
12095 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
12096 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
12097 phba
->sli4_hba
.els_wq
->queue_id
);
12101 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
12102 * @phba: Pointer to HBA context object.
12103 * @cq: Pointer to a WQ completion queue.
12104 * @wcqe: Pointer to work-queue completion queue entry.
12106 * This routine handles an XRI abort event.
12108 * Return: true if work posted to worker thread, otherwise false.
12111 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
12112 struct lpfc_queue
*cq
,
12113 struct sli4_wcqe_xri_aborted
*wcqe
)
12115 bool workposted
= false;
12116 struct lpfc_cq_event
*cq_event
;
12117 unsigned long iflags
;
12119 /* Allocate a new internal CQ_EVENT entry */
12120 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
12122 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12123 "0602 Failed to allocate CQ_EVENT entry\n");
12127 /* Move the CQE into the proper xri abort event list */
12128 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
12129 switch (cq
->subtype
) {
12131 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12132 list_add_tail(&cq_event
->list
,
12133 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
12134 /* Set the fcp xri abort event flag */
12135 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
12136 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12140 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12141 list_add_tail(&cq_event
->list
,
12142 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
12143 /* Set the els xri abort event flag */
12144 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
12145 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12149 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12150 "0603 Invalid work queue CQE subtype (x%x)\n",
12152 workposted
= false;
12159 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
12160 * @phba: Pointer to HBA context object.
12161 * @rcqe: Pointer to receive-queue completion queue entry.
12163 * This routine process a receive-queue completion queue entry.
12165 * Return: true if work posted to worker thread, otherwise false.
12168 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
12170 bool workposted
= false;
12171 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
12172 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
12173 struct hbq_dmabuf
*dma_buf
;
12174 uint32_t status
, rq_id
;
12175 unsigned long iflags
;
12177 /* sanity check on queue memory */
12178 if (unlikely(!hrq
) || unlikely(!drq
))
12181 if (bf_get(lpfc_cqe_code
, rcqe
) == CQE_CODE_RECEIVE_V1
)
12182 rq_id
= bf_get(lpfc_rcqe_rq_id_v1
, rcqe
);
12184 rq_id
= bf_get(lpfc_rcqe_rq_id
, rcqe
);
12185 if (rq_id
!= hrq
->queue_id
)
12188 status
= bf_get(lpfc_rcqe_status
, rcqe
);
12190 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
12191 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12192 "2537 Receive Frame Truncated!!\n");
12193 hrq
->RQ_buf_trunc
++;
12194 case FC_STATUS_RQ_SUCCESS
:
12195 lpfc_sli4_rq_release(hrq
, drq
);
12196 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12197 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
12199 hrq
->RQ_no_buf_found
++;
12200 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12204 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
12205 /* save off the frame for the word thread to process */
12206 list_add_tail(&dma_buf
->cq_event
.list
,
12207 &phba
->sli4_hba
.sp_queue_event
);
12208 /* Frame received */
12209 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
12210 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12213 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
12214 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
12215 hrq
->RQ_no_posted_buf
++;
12216 /* Post more buffers if possible */
12217 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12218 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
12219 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12228 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
12229 * @phba: Pointer to HBA context object.
12230 * @cq: Pointer to the completion queue.
12231 * @wcqe: Pointer to a completion queue entry.
12233 * This routine process a slow-path work-queue or receive queue completion queue
12236 * Return: true if work posted to worker thread, otherwise false.
12239 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12240 struct lpfc_cqe
*cqe
)
12242 struct lpfc_cqe cqevt
;
12243 bool workposted
= false;
12245 /* Copy the work queue CQE and convert endian order if needed */
12246 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
12248 /* Check and process for different type of WCQE and dispatch */
12249 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
12250 case CQE_CODE_COMPL_WQE
:
12251 /* Process the WQ/RQ complete event */
12252 phba
->last_completion_time
= jiffies
;
12253 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
, cq
,
12254 (struct lpfc_wcqe_complete
*)&cqevt
);
12256 case CQE_CODE_RELEASE_WQE
:
12257 /* Process the WQ release event */
12258 lpfc_sli4_sp_handle_rel_wcqe(phba
,
12259 (struct lpfc_wcqe_release
*)&cqevt
);
12261 case CQE_CODE_XRI_ABORTED
:
12262 /* Process the WQ XRI abort event */
12263 phba
->last_completion_time
= jiffies
;
12264 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
12265 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
12267 case CQE_CODE_RECEIVE
:
12268 case CQE_CODE_RECEIVE_V1
:
12269 /* Process the RQ event */
12270 phba
->last_completion_time
= jiffies
;
12271 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
12272 (struct lpfc_rcqe
*)&cqevt
);
12275 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12276 "0388 Not a valid WCQE code: x%x\n",
12277 bf_get(lpfc_cqe_code
, &cqevt
));
12284 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
12285 * @phba: Pointer to HBA context object.
12286 * @eqe: Pointer to fast-path event queue entry.
12288 * This routine process a event queue entry from the slow-path event queue.
12289 * It will check the MajorCode and MinorCode to determine this is for a
12290 * completion event on a completion queue, if not, an error shall be logged
12291 * and just return. Otherwise, it will get to the corresponding completion
12292 * queue and process all the entries on that completion queue, rearm the
12293 * completion queue, and then return.
12297 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
12298 struct lpfc_queue
*speq
)
12300 struct lpfc_queue
*cq
= NULL
, *childq
;
12301 struct lpfc_cqe
*cqe
;
12302 bool workposted
= false;
12306 /* Get the reference to the corresponding CQ */
12307 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12309 list_for_each_entry(childq
, &speq
->child_list
, list
) {
12310 if (childq
->queue_id
== cqid
) {
12315 if (unlikely(!cq
)) {
12316 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12317 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12318 "0365 Slow-path CQ identifier "
12319 "(%d) does not exist\n", cqid
);
12323 /* Process all the entries to the CQ */
12324 switch (cq
->type
) {
12326 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12327 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
12328 if (!(++ecount
% cq
->entry_repost
))
12329 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12334 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12335 if (cq
->subtype
== LPFC_FCP
)
12336 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
,
12339 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
,
12341 if (!(++ecount
% cq
->entry_repost
))
12342 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12345 /* Track the max number of CQEs processed in 1 EQ */
12346 if (ecount
> cq
->CQ_max_cqe
)
12347 cq
->CQ_max_cqe
= ecount
;
12350 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12351 "0370 Invalid completion queue type (%d)\n",
12356 /* Catch the no cq entry condition, log an error */
12357 if (unlikely(ecount
== 0))
12358 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12359 "0371 No entry from the CQ: identifier "
12360 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
12362 /* In any case, flash and re-arm the RCQ */
12363 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12365 /* wake up worker thread if there are works to be done */
12367 lpfc_worker_wake_up(phba
);
12371 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
12372 * @phba: Pointer to HBA context object.
12373 * @cq: Pointer to associated CQ
12374 * @wcqe: Pointer to work-queue completion queue entry.
12376 * This routine process a fast-path work queue completion entry from fast-path
12377 * event queue for FCP command response completion.
12380 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12381 struct lpfc_wcqe_complete
*wcqe
)
12383 struct lpfc_sli_ring
*pring
= cq
->pring
;
12384 struct lpfc_iocbq
*cmdiocbq
;
12385 struct lpfc_iocbq irspiocbq
;
12386 unsigned long iflags
;
12388 /* Check for response status */
12389 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
12390 /* If resource errors reported from HBA, reduce queue
12391 * depth of the SCSI device.
12393 if (((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
12394 IOSTAT_LOCAL_REJECT
)) &&
12395 ((wcqe
->parameter
& IOERR_PARAM_MASK
) ==
12396 IOERR_NO_RESOURCES
))
12397 phba
->lpfc_rampdown_queue_depth(phba
);
12399 /* Log the error status */
12400 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12401 "0373 FCP complete error: status=x%x, "
12402 "hw_status=x%x, total_data_specified=%d, "
12403 "parameter=x%x, word3=x%x\n",
12404 bf_get(lpfc_wcqe_c_status
, wcqe
),
12405 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
12406 wcqe
->total_data_placed
, wcqe
->parameter
,
12410 /* Look up the FCP command IOCB and create pseudo response IOCB */
12411 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
12412 pring
->stats
.iocb_event
++;
12413 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
12414 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12415 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
12416 if (unlikely(!cmdiocbq
)) {
12417 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12418 "0374 FCP complete with no corresponding "
12419 "cmdiocb: iotag (%d)\n",
12420 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12423 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
12424 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12425 "0375 FCP cmdiocb not callback function "
12427 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
12431 /* Fake the irspiocb and copy necessary response information */
12432 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
12434 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
12435 spin_lock_irqsave(&phba
->hbalock
, iflags
);
12436 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
12437 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
12440 /* Pass the cmd_iocb and the rsp state to the upper layer */
12441 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
12445 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
12446 * @phba: Pointer to HBA context object.
12447 * @cq: Pointer to completion queue.
12448 * @wcqe: Pointer to work-queue completion queue entry.
12450 * This routine handles an fast-path WQ entry comsumed event by invoking the
12451 * proper WQ release routine to the slow-path WQ.
12454 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12455 struct lpfc_wcqe_release
*wcqe
)
12457 struct lpfc_queue
*childwq
;
12458 bool wqid_matched
= false;
12461 /* Check for fast-path FCP work queue release */
12462 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
12463 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
12464 if (childwq
->queue_id
== fcp_wqid
) {
12465 lpfc_sli4_wq_release(childwq
,
12466 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
12467 wqid_matched
= true;
12471 /* Report warning log message if no match found */
12472 if (wqid_matched
!= true)
12473 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12474 "2580 Fast-path wqe consume event carries "
12475 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
12479 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
12480 * @cq: Pointer to the completion queue.
12481 * @eqe: Pointer to fast-path completion queue entry.
12483 * This routine process a fast-path work queue completion entry from fast-path
12484 * event queue for FCP command response completion.
12487 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
12488 struct lpfc_cqe
*cqe
)
12490 struct lpfc_wcqe_release wcqe
;
12491 bool workposted
= false;
12493 /* Copy the work queue CQE and convert endian order if needed */
12494 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
12496 /* Check and process for different type of WCQE and dispatch */
12497 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
12498 case CQE_CODE_COMPL_WQE
:
12500 /* Process the WQ complete event */
12501 phba
->last_completion_time
= jiffies
;
12502 lpfc_sli4_fp_handle_fcp_wcqe(phba
, cq
,
12503 (struct lpfc_wcqe_complete
*)&wcqe
);
12505 case CQE_CODE_RELEASE_WQE
:
12506 cq
->CQ_release_wqe
++;
12507 /* Process the WQ release event */
12508 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
12509 (struct lpfc_wcqe_release
*)&wcqe
);
12511 case CQE_CODE_XRI_ABORTED
:
12512 cq
->CQ_xri_aborted
++;
12513 /* Process the WQ XRI abort event */
12514 phba
->last_completion_time
= jiffies
;
12515 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
12516 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
12519 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12520 "0144 Not a valid WCQE code: x%x\n",
12521 bf_get(lpfc_wcqe_c_code
, &wcqe
));
12528 * lpfc_sli4_hba_handle_eqe - Process a fast-path event queue entry
12529 * @phba: Pointer to HBA context object.
12530 * @eqe: Pointer to fast-path event queue entry.
12532 * This routine process a event queue entry from the fast-path event queue.
12533 * It will check the MajorCode and MinorCode to determine this is for a
12534 * completion event on a completion queue, if not, an error shall be logged
12535 * and just return. Otherwise, it will get to the corresponding completion
12536 * queue and process all the entries on the completion queue, rearm the
12537 * completion queue, and then return.
12540 lpfc_sli4_hba_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
12543 struct lpfc_queue
*cq
;
12544 struct lpfc_cqe
*cqe
;
12545 bool workposted
= false;
12549 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
12550 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12551 "0366 Not a valid completion "
12552 "event: majorcode=x%x, minorcode=x%x\n",
12553 bf_get_le32(lpfc_eqe_major_code
, eqe
),
12554 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
12558 /* Get the reference to the corresponding CQ */
12559 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12561 /* Check if this is a Slow path event */
12562 if (unlikely(cqid
!= phba
->sli4_hba
.fcp_cq_map
[qidx
])) {
12563 lpfc_sli4_sp_handle_eqe(phba
, eqe
,
12564 phba
->sli4_hba
.hba_eq
[qidx
]);
12568 if (unlikely(!phba
->sli4_hba
.fcp_cq
)) {
12569 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12570 "3146 Fast-path completion queues "
12571 "does not exist\n");
12574 cq
= phba
->sli4_hba
.fcp_cq
[qidx
];
12575 if (unlikely(!cq
)) {
12576 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12577 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12578 "0367 Fast-path completion queue "
12579 "(%d) does not exist\n", qidx
);
12583 if (unlikely(cqid
!= cq
->queue_id
)) {
12584 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12585 "0368 Miss-matched fast-path completion "
12586 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
12587 cqid
, cq
->queue_id
);
12591 /* Process all the entries to the CQ */
12592 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12593 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
12594 if (!(++ecount
% cq
->entry_repost
))
12595 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12598 /* Track the max number of CQEs processed in 1 EQ */
12599 if (ecount
> cq
->CQ_max_cqe
)
12600 cq
->CQ_max_cqe
= ecount
;
12602 /* Catch the no cq entry condition */
12603 if (unlikely(ecount
== 0))
12604 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12605 "0369 No entry from fast-path completion "
12606 "queue fcpcqid=%d\n", cq
->queue_id
);
12608 /* In any case, flash and re-arm the CQ */
12609 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12611 /* wake up worker thread if there are works to be done */
12613 lpfc_worker_wake_up(phba
);
12617 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
12619 struct lpfc_eqe
*eqe
;
12621 /* walk all the EQ entries and drop on the floor */
12622 while ((eqe
= lpfc_sli4_eq_get(eq
)))
12625 /* Clear and re-arm the EQ */
12626 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
12631 * lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
12633 * @phba: Pointer to HBA context object.
12634 * @eqe: Pointer to fast-path event queue entry.
12636 * This routine process a event queue entry from the Flash Optimized Fabric
12637 * event queue. It will check the MajorCode and MinorCode to determine this
12638 * is for a completion event on a completion queue, if not, an error shall be
12639 * logged and just return. Otherwise, it will get to the corresponding
12640 * completion queue and process all the entries on the completion queue, rearm
12641 * the completion queue, and then return.
12644 lpfc_sli4_fof_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
12646 struct lpfc_queue
*cq
;
12647 struct lpfc_cqe
*cqe
;
12648 bool workposted
= false;
12652 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
12653 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12654 "9147 Not a valid completion "
12655 "event: majorcode=x%x, minorcode=x%x\n",
12656 bf_get_le32(lpfc_eqe_major_code
, eqe
),
12657 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
12661 /* Get the reference to the corresponding CQ */
12662 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
12664 /* Next check for OAS */
12665 cq
= phba
->sli4_hba
.oas_cq
;
12666 if (unlikely(!cq
)) {
12667 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
12668 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12669 "9148 OAS completion queue "
12670 "does not exist\n");
12674 if (unlikely(cqid
!= cq
->queue_id
)) {
12675 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12676 "9149 Miss-matched fast-path compl "
12677 "queue id: eqcqid=%d, fcpcqid=%d\n",
12678 cqid
, cq
->queue_id
);
12682 /* Process all the entries to the OAS CQ */
12683 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
12684 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
12685 if (!(++ecount
% cq
->entry_repost
))
12686 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
12689 /* Track the max number of CQEs processed in 1 EQ */
12690 if (ecount
> cq
->CQ_max_cqe
)
12691 cq
->CQ_max_cqe
= ecount
;
12693 /* Catch the no cq entry condition */
12694 if (unlikely(ecount
== 0))
12695 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12696 "9153 No entry from fast-path completion "
12697 "queue fcpcqid=%d\n", cq
->queue_id
);
12699 /* In any case, flash and re-arm the CQ */
12700 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
12702 /* wake up worker thread if there are works to be done */
12704 lpfc_worker_wake_up(phba
);
12708 * lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
12709 * @irq: Interrupt number.
12710 * @dev_id: The device context pointer.
12712 * This function is directly called from the PCI layer as an interrupt
12713 * service routine when device with SLI-4 interface spec is enabled with
12714 * MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
12715 * IOCB ring event in the HBA. However, when the device is enabled with either
12716 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12717 * device-level interrupt handler. When the PCI slot is in error recovery
12718 * or the HBA is undergoing initialization, the interrupt handler will not
12719 * process the interrupt. The Flash Optimized Fabric ring event are handled in
12720 * the intrrupt context. This function is called without any lock held.
12721 * It gets the hbalock to access and update SLI data structures. Note that,
12722 * the EQ to CQ are one-to-one map such that the EQ index is
12723 * equal to that of CQ index.
12725 * This function returns IRQ_HANDLED when interrupt is handled else it
12726 * returns IRQ_NONE.
12729 lpfc_sli4_fof_intr_handler(int irq
, void *dev_id
)
12731 struct lpfc_hba
*phba
;
12732 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
12733 struct lpfc_queue
*eq
;
12734 struct lpfc_eqe
*eqe
;
12735 unsigned long iflag
;
12738 /* Get the driver's phba structure from the dev_id */
12739 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
12740 phba
= fcp_eq_hdl
->phba
;
12742 if (unlikely(!phba
))
12745 /* Get to the EQ struct associated with this vector */
12746 eq
= phba
->sli4_hba
.fof_eq
;
12750 /* Check device state for handling interrupt */
12751 if (unlikely(lpfc_intr_state_check(phba
))) {
12753 /* Check again for link_state with lock held */
12754 spin_lock_irqsave(&phba
->hbalock
, iflag
);
12755 if (phba
->link_state
< LPFC_LINK_DOWN
)
12756 /* Flush, clear interrupt, and rearm the EQ */
12757 lpfc_sli4_eq_flush(phba
, eq
);
12758 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
12763 * Process all the event on FCP fast-path EQ
12765 while ((eqe
= lpfc_sli4_eq_get(eq
))) {
12766 lpfc_sli4_fof_handle_eqe(phba
, eqe
);
12767 if (!(++ecount
% eq
->entry_repost
))
12768 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_NOARM
);
12769 eq
->EQ_processed
++;
12772 /* Track the max number of EQEs processed in 1 intr */
12773 if (ecount
> eq
->EQ_max_eqe
)
12774 eq
->EQ_max_eqe
= ecount
;
12777 if (unlikely(ecount
== 0)) {
12780 if (phba
->intr_type
== MSIX
)
12781 /* MSI-X treated interrupt served as no EQ share INT */
12782 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12783 "9145 MSI-X interrupt with no EQE\n");
12785 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12786 "9146 ISR interrupt with no EQE\n");
12787 /* Non MSI-X treated on interrupt as EQ share INT */
12791 /* Always clear and re-arm the fast-path EQ */
12792 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
12793 return IRQ_HANDLED
;
12797 * lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
12798 * @irq: Interrupt number.
12799 * @dev_id: The device context pointer.
12801 * This function is directly called from the PCI layer as an interrupt
12802 * service routine when device with SLI-4 interface spec is enabled with
12803 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
12804 * ring event in the HBA. However, when the device is enabled with either
12805 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
12806 * device-level interrupt handler. When the PCI slot is in error recovery
12807 * or the HBA is undergoing initialization, the interrupt handler will not
12808 * process the interrupt. The SCSI FCP fast-path ring event are handled in
12809 * the intrrupt context. This function is called without any lock held.
12810 * It gets the hbalock to access and update SLI data structures. Note that,
12811 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
12812 * equal to that of FCP CQ index.
12814 * The link attention and ELS ring attention events are handled
12815 * by the worker thread. The interrupt handler signals the worker thread
12816 * and returns for these events. This function is called without any lock
12817 * held. It gets the hbalock to access and update SLI data structures.
12819 * This function returns IRQ_HANDLED when interrupt is handled else it
12820 * returns IRQ_NONE.
12823 lpfc_sli4_hba_intr_handler(int irq
, void *dev_id
)
12825 struct lpfc_hba
*phba
;
12826 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
12827 struct lpfc_queue
*fpeq
;
12828 struct lpfc_eqe
*eqe
;
12829 unsigned long iflag
;
12833 /* Get the driver's phba structure from the dev_id */
12834 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
12835 phba
= fcp_eq_hdl
->phba
;
12836 fcp_eqidx
= fcp_eq_hdl
->idx
;
12838 if (unlikely(!phba
))
12840 if (unlikely(!phba
->sli4_hba
.hba_eq
))
12843 /* Get to the EQ struct associated with this vector */
12844 fpeq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
12845 if (unlikely(!fpeq
))
12848 if (lpfc_fcp_look_ahead
) {
12849 if (atomic_dec_and_test(&fcp_eq_hdl
->fcp_eq_in_use
))
12850 lpfc_sli4_eq_clr_intr(fpeq
);
12852 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12857 /* Check device state for handling interrupt */
12858 if (unlikely(lpfc_intr_state_check(phba
))) {
12859 fpeq
->EQ_badstate
++;
12860 /* Check again for link_state with lock held */
12861 spin_lock_irqsave(&phba
->hbalock
, iflag
);
12862 if (phba
->link_state
< LPFC_LINK_DOWN
)
12863 /* Flush, clear interrupt, and rearm the EQ */
12864 lpfc_sli4_eq_flush(phba
, fpeq
);
12865 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
12866 if (lpfc_fcp_look_ahead
)
12867 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12872 * Process all the event on FCP fast-path EQ
12874 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
12878 lpfc_sli4_hba_handle_eqe(phba
, eqe
, fcp_eqidx
);
12879 if (!(++ecount
% fpeq
->entry_repost
))
12880 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
12881 fpeq
->EQ_processed
++;
12884 /* Track the max number of EQEs processed in 1 intr */
12885 if (ecount
> fpeq
->EQ_max_eqe
)
12886 fpeq
->EQ_max_eqe
= ecount
;
12888 /* Always clear and re-arm the fast-path EQ */
12889 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
12891 if (unlikely(ecount
== 0)) {
12892 fpeq
->EQ_no_entry
++;
12894 if (lpfc_fcp_look_ahead
) {
12895 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12899 if (phba
->intr_type
== MSIX
)
12900 /* MSI-X treated interrupt served as no EQ share INT */
12901 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12902 "0358 MSI-X interrupt with no EQE\n");
12904 /* Non MSI-X treated on interrupt as EQ share INT */
12908 if (lpfc_fcp_look_ahead
)
12909 atomic_inc(&fcp_eq_hdl
->fcp_eq_in_use
);
12910 return IRQ_HANDLED
;
12911 } /* lpfc_sli4_fp_intr_handler */
12914 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
12915 * @irq: Interrupt number.
12916 * @dev_id: The device context pointer.
12918 * This function is the device-level interrupt handler to device with SLI-4
12919 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
12920 * interrupt mode is enabled and there is an event in the HBA which requires
12921 * driver attention. This function invokes the slow-path interrupt attention
12922 * handling function and fast-path interrupt attention handling function in
12923 * turn to process the relevant HBA attention events. This function is called
12924 * without any lock held. It gets the hbalock to access and update SLI data
12927 * This function returns IRQ_HANDLED when interrupt is handled, else it
12928 * returns IRQ_NONE.
12931 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
12933 struct lpfc_hba
*phba
;
12934 irqreturn_t hba_irq_rc
;
12935 bool hba_handled
= false;
12938 /* Get the driver's phba structure from the dev_id */
12939 phba
= (struct lpfc_hba
*)dev_id
;
12941 if (unlikely(!phba
))
12945 * Invoke fast-path host attention interrupt handling as appropriate.
12947 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_io_channel
; fcp_eqidx
++) {
12948 hba_irq_rc
= lpfc_sli4_hba_intr_handler(irq
,
12949 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
12950 if (hba_irq_rc
== IRQ_HANDLED
)
12951 hba_handled
|= true;
12954 if (phba
->cfg_fof
) {
12955 hba_irq_rc
= lpfc_sli4_fof_intr_handler(irq
,
12956 &phba
->sli4_hba
.fcp_eq_hdl
[0]);
12957 if (hba_irq_rc
== IRQ_HANDLED
)
12958 hba_handled
|= true;
12961 return (hba_handled
== true) ? IRQ_HANDLED
: IRQ_NONE
;
12962 } /* lpfc_sli4_intr_handler */
12965 * lpfc_sli4_queue_free - free a queue structure and associated memory
12966 * @queue: The queue structure to free.
12968 * This function frees a queue structure and the DMAable memory used for
12969 * the host resident queue. This function must be called after destroying the
12970 * queue on the HBA.
12973 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
12975 struct lpfc_dmabuf
*dmabuf
;
12980 while (!list_empty(&queue
->page_list
)) {
12981 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
12983 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
12984 dmabuf
->virt
, dmabuf
->phys
);
12992 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
12993 * @phba: The HBA that this queue is being created on.
12994 * @entry_size: The size of each queue entry for this queue.
12995 * @entry count: The number of entries that this queue will handle.
12997 * This function allocates a queue structure and the DMAable memory used for
12998 * the host resident queue. This function must be called before creating the
12999 * queue on the HBA.
13001 struct lpfc_queue
*
13002 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
13003 uint32_t entry_count
)
13005 struct lpfc_queue
*queue
;
13006 struct lpfc_dmabuf
*dmabuf
;
13007 int x
, total_qe_count
;
13009 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13011 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13012 hw_page_size
= SLI4_PAGE_SIZE
;
13014 queue
= kzalloc(sizeof(struct lpfc_queue
) +
13015 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
13018 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
13019 hw_page_size
))/hw_page_size
;
13020 INIT_LIST_HEAD(&queue
->list
);
13021 INIT_LIST_HEAD(&queue
->page_list
);
13022 INIT_LIST_HEAD(&queue
->child_list
);
13023 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
13024 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
13027 dmabuf
->virt
= dma_zalloc_coherent(&phba
->pcidev
->dev
,
13028 hw_page_size
, &dmabuf
->phys
,
13030 if (!dmabuf
->virt
) {
13034 dmabuf
->buffer_tag
= x
;
13035 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
13036 /* initialize queue's entry array */
13037 dma_pointer
= dmabuf
->virt
;
13038 for (; total_qe_count
< entry_count
&&
13039 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
13040 total_qe_count
++, dma_pointer
+= entry_size
) {
13041 queue
->qe
[total_qe_count
].address
= dma_pointer
;
13044 queue
->entry_size
= entry_size
;
13045 queue
->entry_count
= entry_count
;
13048 * entry_repost is calculated based on the number of entries in the
13049 * queue. This works out except for RQs. If buffers are NOT initially
13050 * posted for every RQE, entry_repost should be adjusted accordingly.
13052 queue
->entry_repost
= (entry_count
>> 3);
13053 if (queue
->entry_repost
< LPFC_QUEUE_MIN_REPOST
)
13054 queue
->entry_repost
= LPFC_QUEUE_MIN_REPOST
;
13055 queue
->phba
= phba
;
13059 lpfc_sli4_queue_free(queue
);
13064 * lpfc_dual_chute_pci_bar_map - Map pci base address register to host memory
13065 * @phba: HBA structure that indicates port to create a queue on.
13066 * @pci_barset: PCI BAR set flag.
13068 * This function shall perform iomap of the specified PCI BAR address to host
13069 * memory address if not already done so and return it. The returned host
13070 * memory address can be NULL.
13072 static void __iomem
*
13073 lpfc_dual_chute_pci_bar_map(struct lpfc_hba
*phba
, uint16_t pci_barset
)
13078 switch (pci_barset
) {
13079 case WQ_PCI_BAR_0_AND_1
:
13080 return phba
->pci_bar0_memmap_p
;
13081 case WQ_PCI_BAR_2_AND_3
:
13082 return phba
->pci_bar2_memmap_p
;
13083 case WQ_PCI_BAR_4_AND_5
:
13084 return phba
->pci_bar4_memmap_p
;
13092 * lpfc_modify_fcp_eq_delay - Modify Delay Multiplier on FCP EQs
13093 * @phba: HBA structure that indicates port to create a queue on.
13094 * @startq: The starting FCP EQ to modify
13096 * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA.
13098 * The @phba struct is used to send mailbox command to HBA. The @startq
13099 * is used to get the starting FCP EQ to change.
13100 * This function is asynchronous and will wait for the mailbox
13101 * command to finish before continuing.
13103 * On success this function will return a zero. If unable to allocate enough
13104 * memory this function will return -ENOMEM. If the queue create mailbox command
13105 * fails this function will return -ENXIO.
13108 lpfc_modify_fcp_eq_delay(struct lpfc_hba
*phba
, uint32_t startq
)
13110 struct lpfc_mbx_modify_eq_delay
*eq_delay
;
13111 LPFC_MBOXQ_t
*mbox
;
13112 struct lpfc_queue
*eq
;
13113 int cnt
, rc
, length
, status
= 0;
13114 uint32_t shdr_status
, shdr_add_status
;
13117 union lpfc_sli4_cfg_shdr
*shdr
;
13120 if (startq
>= phba
->cfg_fcp_io_channel
)
13123 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13126 length
= (sizeof(struct lpfc_mbx_modify_eq_delay
) -
13127 sizeof(struct lpfc_sli4_cfg_mhdr
));
13128 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13129 LPFC_MBOX_OPCODE_MODIFY_EQ_DELAY
,
13130 length
, LPFC_SLI4_MBX_EMBED
);
13131 eq_delay
= &mbox
->u
.mqe
.un
.eq_delay
;
13133 /* Calculate delay multiper from maximum interrupt per second */
13134 result
= phba
->cfg_fcp_imax
/ phba
->cfg_fcp_io_channel
;
13135 if (result
> LPFC_DMULT_CONST
)
13138 dmult
= LPFC_DMULT_CONST
/result
- 1;
13141 for (fcp_eqidx
= startq
; fcp_eqidx
< phba
->cfg_fcp_io_channel
;
13143 eq
= phba
->sli4_hba
.hba_eq
[fcp_eqidx
];
13146 eq_delay
->u
.request
.eq
[cnt
].eq_id
= eq
->queue_id
;
13147 eq_delay
->u
.request
.eq
[cnt
].phase
= 0;
13148 eq_delay
->u
.request
.eq
[cnt
].delay_multi
= dmult
;
13150 if (cnt
>= LPFC_MAX_EQ_DELAY
)
13153 eq_delay
->u
.request
.num_eq
= cnt
;
13155 mbox
->vport
= phba
->pport
;
13156 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13157 mbox
->context1
= NULL
;
13158 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13159 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_delay
->header
.cfg_shdr
;
13160 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13161 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13162 if (shdr_status
|| shdr_add_status
|| rc
) {
13163 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13164 "2512 MODIFY_EQ_DELAY mailbox failed with "
13165 "status x%x add_status x%x, mbx status x%x\n",
13166 shdr_status
, shdr_add_status
, rc
);
13169 mempool_free(mbox
, phba
->mbox_mem_pool
);
13174 * lpfc_eq_create - Create an Event Queue on the HBA
13175 * @phba: HBA structure that indicates port to create a queue on.
13176 * @eq: The queue structure to use to create the event queue.
13177 * @imax: The maximum interrupt per second limit.
13179 * This function creates an event queue, as detailed in @eq, on a port,
13180 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
13182 * The @phba struct is used to send mailbox command to HBA. The @eq struct
13183 * is used to get the entry count and entry size that are necessary to
13184 * determine the number of pages to allocate and use for this queue. This
13185 * function will send the EQ_CREATE mailbox command to the HBA to setup the
13186 * event queue. This function is asynchronous and will wait for the mailbox
13187 * command to finish before continuing.
13189 * On success this function will return a zero. If unable to allocate enough
13190 * memory this function will return -ENOMEM. If the queue create mailbox command
13191 * fails this function will return -ENXIO.
13194 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint32_t imax
)
13196 struct lpfc_mbx_eq_create
*eq_create
;
13197 LPFC_MBOXQ_t
*mbox
;
13198 int rc
, length
, status
= 0;
13199 struct lpfc_dmabuf
*dmabuf
;
13200 uint32_t shdr_status
, shdr_add_status
;
13201 union lpfc_sli4_cfg_shdr
*shdr
;
13203 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13205 /* sanity check on queue memory */
13208 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13209 hw_page_size
= SLI4_PAGE_SIZE
;
13211 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13214 length
= (sizeof(struct lpfc_mbx_eq_create
) -
13215 sizeof(struct lpfc_sli4_cfg_mhdr
));
13216 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13217 LPFC_MBOX_OPCODE_EQ_CREATE
,
13218 length
, LPFC_SLI4_MBX_EMBED
);
13219 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
13220 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
13222 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
13224 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
13225 /* don't setup delay multiplier using EQ_CREATE */
13227 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
13229 switch (eq
->entry_count
) {
13231 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13232 "0360 Unsupported EQ count. (%d)\n",
13234 if (eq
->entry_count
< 256)
13236 /* otherwise default to smallest count (drop through) */
13238 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13242 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13246 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13250 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13254 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
13258 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
13259 memset(dmabuf
->virt
, 0, hw_page_size
);
13260 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13261 putPaddrLow(dmabuf
->phys
);
13262 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13263 putPaddrHigh(dmabuf
->phys
);
13265 mbox
->vport
= phba
->pport
;
13266 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13267 mbox
->context1
= NULL
;
13268 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13269 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
13270 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13271 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13272 if (shdr_status
|| shdr_add_status
|| rc
) {
13273 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13274 "2500 EQ_CREATE mailbox failed with "
13275 "status x%x add_status x%x, mbx status x%x\n",
13276 shdr_status
, shdr_add_status
, rc
);
13279 eq
->type
= LPFC_EQ
;
13280 eq
->subtype
= LPFC_NONE
;
13281 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
13282 if (eq
->queue_id
== 0xFFFF)
13284 eq
->host_index
= 0;
13287 mempool_free(mbox
, phba
->mbox_mem_pool
);
13292 * lpfc_cq_create - Create a Completion Queue on the HBA
13293 * @phba: HBA structure that indicates port to create a queue on.
13294 * @cq: The queue structure to use to create the completion queue.
13295 * @eq: The event queue to bind this completion queue to.
13297 * This function creates a completion queue, as detailed in @wq, on a port,
13298 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
13300 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13301 * is used to get the entry count and entry size that are necessary to
13302 * determine the number of pages to allocate and use for this queue. The @eq
13303 * is used to indicate which event queue to bind this completion queue to. This
13304 * function will send the CQ_CREATE mailbox command to the HBA to setup the
13305 * completion queue. This function is asynchronous and will wait for the mailbox
13306 * command to finish before continuing.
13308 * On success this function will return a zero. If unable to allocate enough
13309 * memory this function will return -ENOMEM. If the queue create mailbox command
13310 * fails this function will return -ENXIO.
13313 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
13314 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
13316 struct lpfc_mbx_cq_create
*cq_create
;
13317 struct lpfc_dmabuf
*dmabuf
;
13318 LPFC_MBOXQ_t
*mbox
;
13319 int rc
, length
, status
= 0;
13320 uint32_t shdr_status
, shdr_add_status
;
13321 union lpfc_sli4_cfg_shdr
*shdr
;
13322 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13324 /* sanity check on queue memory */
13327 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13328 hw_page_size
= SLI4_PAGE_SIZE
;
13330 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13333 length
= (sizeof(struct lpfc_mbx_cq_create
) -
13334 sizeof(struct lpfc_sli4_cfg_mhdr
));
13335 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13336 LPFC_MBOX_OPCODE_CQ_CREATE
,
13337 length
, LPFC_SLI4_MBX_EMBED
);
13338 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
13339 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
13340 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
13342 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
13343 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
13344 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13345 phba
->sli4_hba
.pc_sli4_params
.cqv
);
13346 if (phba
->sli4_hba
.pc_sli4_params
.cqv
== LPFC_Q_CREATE_VERSION_2
) {
13347 /* FW only supports 1. Should be PAGE_SIZE/SLI4_PAGE_SIZE */
13348 bf_set(lpfc_mbx_cq_create_page_size
, &cq_create
->u
.request
, 1);
13349 bf_set(lpfc_cq_eq_id_2
, &cq_create
->u
.request
.context
,
13352 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
,
13355 switch (cq
->entry_count
) {
13357 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13358 "0361 Unsupported CQ count. (%d)\n",
13360 if (cq
->entry_count
< 256) {
13364 /* otherwise default to smallest count (drop through) */
13366 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13370 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13374 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
13378 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
13379 memset(dmabuf
->virt
, 0, hw_page_size
);
13380 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13381 putPaddrLow(dmabuf
->phys
);
13382 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13383 putPaddrHigh(dmabuf
->phys
);
13385 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13387 /* The IOCTL status is embedded in the mailbox subheader. */
13388 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13389 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13390 if (shdr_status
|| shdr_add_status
|| rc
) {
13391 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13392 "2501 CQ_CREATE mailbox failed with "
13393 "status x%x add_status x%x, mbx status x%x\n",
13394 shdr_status
, shdr_add_status
, rc
);
13398 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
13399 if (cq
->queue_id
== 0xFFFF) {
13403 /* link the cq onto the parent eq child list */
13404 list_add_tail(&cq
->list
, &eq
->child_list
);
13405 /* Set up completion queue's type and subtype */
13407 cq
->subtype
= subtype
;
13408 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
13409 cq
->assoc_qid
= eq
->queue_id
;
13410 cq
->host_index
= 0;
13414 mempool_free(mbox
, phba
->mbox_mem_pool
);
13419 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
13420 * @phba: HBA structure that indicates port to create a queue on.
13421 * @mq: The queue structure to use to create the mailbox queue.
13422 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
13423 * @cq: The completion queue to associate with this cq.
13425 * This function provides failback (fb) functionality when the
13426 * mq_create_ext fails on older FW generations. It's purpose is identical
13427 * to mq_create_ext otherwise.
13429 * This routine cannot fail as all attributes were previously accessed and
13430 * initialized in mq_create_ext.
13433 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
13434 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
13436 struct lpfc_mbx_mq_create
*mq_create
;
13437 struct lpfc_dmabuf
*dmabuf
;
13440 length
= (sizeof(struct lpfc_mbx_mq_create
) -
13441 sizeof(struct lpfc_sli4_cfg_mhdr
));
13442 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13443 LPFC_MBOX_OPCODE_MQ_CREATE
,
13444 length
, LPFC_SLI4_MBX_EMBED
);
13445 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
13446 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
13448 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
13450 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
13451 switch (mq
->entry_count
) {
13453 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13454 LPFC_MQ_RING_SIZE_16
);
13457 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13458 LPFC_MQ_RING_SIZE_32
);
13461 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13462 LPFC_MQ_RING_SIZE_64
);
13465 bf_set(lpfc_mq_context_ring_size
, &mq_create
->u
.request
.context
,
13466 LPFC_MQ_RING_SIZE_128
);
13469 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
13470 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13471 putPaddrLow(dmabuf
->phys
);
13472 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13473 putPaddrHigh(dmabuf
->phys
);
13478 * lpfc_mq_create - Create a mailbox Queue on the HBA
13479 * @phba: HBA structure that indicates port to create a queue on.
13480 * @mq: The queue structure to use to create the mailbox queue.
13481 * @cq: The completion queue to associate with this cq.
13482 * @subtype: The queue's subtype.
13484 * This function creates a mailbox queue, as detailed in @mq, on a port,
13485 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
13487 * The @phba struct is used to send mailbox command to HBA. The @cq struct
13488 * is used to get the entry count and entry size that are necessary to
13489 * determine the number of pages to allocate and use for this queue. This
13490 * function will send the MQ_CREATE mailbox command to the HBA to setup the
13491 * mailbox queue. This function is asynchronous and will wait for the mailbox
13492 * command to finish before continuing.
13494 * On success this function will return a zero. If unable to allocate enough
13495 * memory this function will return -ENOMEM. If the queue create mailbox command
13496 * fails this function will return -ENXIO.
13499 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
13500 struct lpfc_queue
*cq
, uint32_t subtype
)
13502 struct lpfc_mbx_mq_create
*mq_create
;
13503 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
13504 struct lpfc_dmabuf
*dmabuf
;
13505 LPFC_MBOXQ_t
*mbox
;
13506 int rc
, length
, status
= 0;
13507 uint32_t shdr_status
, shdr_add_status
;
13508 union lpfc_sli4_cfg_shdr
*shdr
;
13509 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13511 /* sanity check on queue memory */
13514 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13515 hw_page_size
= SLI4_PAGE_SIZE
;
13517 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13520 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
13521 sizeof(struct lpfc_sli4_cfg_mhdr
));
13522 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
13523 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
13524 length
, LPFC_SLI4_MBX_EMBED
);
13526 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
13527 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
13528 bf_set(lpfc_mbx_mq_create_ext_num_pages
,
13529 &mq_create_ext
->u
.request
, mq
->page_count
);
13530 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
,
13531 &mq_create_ext
->u
.request
, 1);
13532 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip
,
13533 &mq_create_ext
->u
.request
, 1);
13534 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
13535 &mq_create_ext
->u
.request
, 1);
13536 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc
,
13537 &mq_create_ext
->u
.request
, 1);
13538 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli
,
13539 &mq_create_ext
->u
.request
, 1);
13540 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
13541 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13542 phba
->sli4_hba
.pc_sli4_params
.mqv
);
13543 if (phba
->sli4_hba
.pc_sli4_params
.mqv
== LPFC_Q_CREATE_VERSION_1
)
13544 bf_set(lpfc_mbx_mq_create_ext_cq_id
, &mq_create_ext
->u
.request
,
13547 bf_set(lpfc_mq_context_cq_id
, &mq_create_ext
->u
.request
.context
,
13549 switch (mq
->entry_count
) {
13551 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13552 "0362 Unsupported MQ count. (%d)\n",
13554 if (mq
->entry_count
< 16) {
13558 /* otherwise default to smallest count (drop through) */
13560 bf_set(lpfc_mq_context_ring_size
,
13561 &mq_create_ext
->u
.request
.context
,
13562 LPFC_MQ_RING_SIZE_16
);
13565 bf_set(lpfc_mq_context_ring_size
,
13566 &mq_create_ext
->u
.request
.context
,
13567 LPFC_MQ_RING_SIZE_32
);
13570 bf_set(lpfc_mq_context_ring_size
,
13571 &mq_create_ext
->u
.request
.context
,
13572 LPFC_MQ_RING_SIZE_64
);
13575 bf_set(lpfc_mq_context_ring_size
,
13576 &mq_create_ext
->u
.request
.context
,
13577 LPFC_MQ_RING_SIZE_128
);
13580 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
13581 memset(dmabuf
->virt
, 0, hw_page_size
);
13582 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13583 putPaddrLow(dmabuf
->phys
);
13584 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13585 putPaddrHigh(dmabuf
->phys
);
13587 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13588 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
13589 &mq_create_ext
->u
.response
);
13590 if (rc
!= MBX_SUCCESS
) {
13591 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13592 "2795 MQ_CREATE_EXT failed with "
13593 "status x%x. Failback to MQ_CREATE.\n",
13595 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
13596 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
13597 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13598 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
13599 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
13600 &mq_create
->u
.response
);
13603 /* The IOCTL status is embedded in the mailbox subheader. */
13604 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13605 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13606 if (shdr_status
|| shdr_add_status
|| rc
) {
13607 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13608 "2502 MQ_CREATE mailbox failed with "
13609 "status x%x add_status x%x, mbx status x%x\n",
13610 shdr_status
, shdr_add_status
, rc
);
13614 if (mq
->queue_id
== 0xFFFF) {
13618 mq
->type
= LPFC_MQ
;
13619 mq
->assoc_qid
= cq
->queue_id
;
13620 mq
->subtype
= subtype
;
13621 mq
->host_index
= 0;
13624 /* link the mq onto the parent cq child list */
13625 list_add_tail(&mq
->list
, &cq
->child_list
);
13627 mempool_free(mbox
, phba
->mbox_mem_pool
);
13632 * lpfc_wq_create - Create a Work Queue on the HBA
13633 * @phba: HBA structure that indicates port to create a queue on.
13634 * @wq: The queue structure to use to create the work queue.
13635 * @cq: The completion queue to bind this work queue to.
13636 * @subtype: The subtype of the work queue indicating its functionality.
13638 * This function creates a work queue, as detailed in @wq, on a port, described
13639 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
13641 * The @phba struct is used to send mailbox command to HBA. The @wq struct
13642 * is used to get the entry count and entry size that are necessary to
13643 * determine the number of pages to allocate and use for this queue. The @cq
13644 * is used to indicate which completion queue to bind this work queue to. This
13645 * function will send the WQ_CREATE mailbox command to the HBA to setup the
13646 * work queue. This function is asynchronous and will wait for the mailbox
13647 * command to finish before continuing.
13649 * On success this function will return a zero. If unable to allocate enough
13650 * memory this function will return -ENOMEM. If the queue create mailbox command
13651 * fails this function will return -ENXIO.
13654 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
13655 struct lpfc_queue
*cq
, uint32_t subtype
)
13657 struct lpfc_mbx_wq_create
*wq_create
;
13658 struct lpfc_dmabuf
*dmabuf
;
13659 LPFC_MBOXQ_t
*mbox
;
13660 int rc
, length
, status
= 0;
13661 uint32_t shdr_status
, shdr_add_status
;
13662 union lpfc_sli4_cfg_shdr
*shdr
;
13663 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13664 struct dma_address
*page
;
13665 void __iomem
*bar_memmap_p
;
13666 uint32_t db_offset
;
13667 uint16_t pci_barset
;
13669 /* sanity check on queue memory */
13672 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13673 hw_page_size
= SLI4_PAGE_SIZE
;
13675 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13678 length
= (sizeof(struct lpfc_mbx_wq_create
) -
13679 sizeof(struct lpfc_sli4_cfg_mhdr
));
13680 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13681 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
13682 length
, LPFC_SLI4_MBX_EMBED
);
13683 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
13684 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
13685 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
13687 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
13690 /* wqv is the earliest version supported, NOT the latest */
13691 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13692 phba
->sli4_hba
.pc_sli4_params
.wqv
);
13694 switch (phba
->sli4_hba
.pc_sli4_params
.wqv
) {
13695 case LPFC_Q_CREATE_VERSION_0
:
13696 switch (wq
->entry_size
) {
13699 /* Nothing to do, version 0 ONLY supports 64 byte */
13700 page
= wq_create
->u
.request
.page
;
13703 if (!(phba
->sli4_hba
.pc_sli4_params
.wqsize
&
13704 LPFC_WQ_SZ128_SUPPORT
)) {
13708 /* If we get here the HBA MUST also support V1 and
13711 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13712 LPFC_Q_CREATE_VERSION_1
);
13714 bf_set(lpfc_mbx_wq_create_wqe_count
,
13715 &wq_create
->u
.request_1
, wq
->entry_count
);
13716 bf_set(lpfc_mbx_wq_create_wqe_size
,
13717 &wq_create
->u
.request_1
,
13718 LPFC_WQ_WQE_SIZE_128
);
13719 bf_set(lpfc_mbx_wq_create_page_size
,
13720 &wq_create
->u
.request_1
,
13721 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13722 page
= wq_create
->u
.request_1
.page
;
13726 case LPFC_Q_CREATE_VERSION_1
:
13727 bf_set(lpfc_mbx_wq_create_wqe_count
, &wq_create
->u
.request_1
,
13729 switch (wq
->entry_size
) {
13732 bf_set(lpfc_mbx_wq_create_wqe_size
,
13733 &wq_create
->u
.request_1
,
13734 LPFC_WQ_WQE_SIZE_64
);
13737 if (!(phba
->sli4_hba
.pc_sli4_params
.wqsize
&
13738 LPFC_WQ_SZ128_SUPPORT
)) {
13742 bf_set(lpfc_mbx_wq_create_wqe_size
,
13743 &wq_create
->u
.request_1
,
13744 LPFC_WQ_WQE_SIZE_128
);
13747 bf_set(lpfc_mbx_wq_create_page_size
, &wq_create
->u
.request_1
,
13748 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13749 page
= wq_create
->u
.request_1
.page
;
13756 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
13757 memset(dmabuf
->virt
, 0, hw_page_size
);
13758 page
[dmabuf
->buffer_tag
].addr_lo
= putPaddrLow(dmabuf
->phys
);
13759 page
[dmabuf
->buffer_tag
].addr_hi
= putPaddrHigh(dmabuf
->phys
);
13762 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13763 bf_set(lpfc_mbx_wq_create_dua
, &wq_create
->u
.request
, 1);
13765 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13766 /* The IOCTL status is embedded in the mailbox subheader. */
13767 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13768 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13769 if (shdr_status
|| shdr_add_status
|| rc
) {
13770 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13771 "2503 WQ_CREATE mailbox failed with "
13772 "status x%x add_status x%x, mbx status x%x\n",
13773 shdr_status
, shdr_add_status
, rc
);
13777 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
13778 if (wq
->queue_id
== 0xFFFF) {
13782 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
13783 wq
->db_format
= bf_get(lpfc_mbx_wq_create_db_format
,
13784 &wq_create
->u
.response
);
13785 if ((wq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
13786 (wq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
13787 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13788 "3265 WQ[%d] doorbell format not "
13789 "supported: x%x\n", wq
->queue_id
,
13794 pci_barset
= bf_get(lpfc_mbx_wq_create_bar_set
,
13795 &wq_create
->u
.response
);
13796 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
13797 if (!bar_memmap_p
) {
13798 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13799 "3263 WQ[%d] failed to memmap pci "
13800 "barset:x%x\n", wq
->queue_id
,
13805 db_offset
= wq_create
->u
.response
.doorbell_offset
;
13806 if ((db_offset
!= LPFC_ULP0_WQ_DOORBELL
) &&
13807 (db_offset
!= LPFC_ULP1_WQ_DOORBELL
)) {
13808 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13809 "3252 WQ[%d] doorbell offset not "
13810 "supported: x%x\n", wq
->queue_id
,
13815 wq
->db_regaddr
= bar_memmap_p
+ db_offset
;
13816 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13817 "3264 WQ[%d]: barset:x%x, offset:x%x, "
13818 "format:x%x\n", wq
->queue_id
, pci_barset
,
13819 db_offset
, wq
->db_format
);
13821 wq
->db_format
= LPFC_DB_LIST_FORMAT
;
13822 wq
->db_regaddr
= phba
->sli4_hba
.WQDBregaddr
;
13824 wq
->type
= LPFC_WQ
;
13825 wq
->assoc_qid
= cq
->queue_id
;
13826 wq
->subtype
= subtype
;
13827 wq
->host_index
= 0;
13829 wq
->entry_repost
= LPFC_RELEASE_NOTIFICATION_INTERVAL
;
13831 /* link the wq onto the parent cq child list */
13832 list_add_tail(&wq
->list
, &cq
->child_list
);
13834 mempool_free(mbox
, phba
->mbox_mem_pool
);
13839 * lpfc_rq_adjust_repost - Adjust entry_repost for an RQ
13840 * @phba: HBA structure that indicates port to create a queue on.
13841 * @rq: The queue structure to use for the receive queue.
13842 * @qno: The associated HBQ number
13845 * For SLI4 we need to adjust the RQ repost value based on
13846 * the number of buffers that are initially posted to the RQ.
13849 lpfc_rq_adjust_repost(struct lpfc_hba
*phba
, struct lpfc_queue
*rq
, int qno
)
13853 /* sanity check on queue memory */
13856 cnt
= lpfc_hbq_defs
[qno
]->entry_count
;
13858 /* Recalc repost for RQs based on buffers initially posted */
13860 if (cnt
< LPFC_QUEUE_MIN_REPOST
)
13861 cnt
= LPFC_QUEUE_MIN_REPOST
;
13863 rq
->entry_repost
= cnt
;
13867 * lpfc_rq_create - Create a Receive Queue on the HBA
13868 * @phba: HBA structure that indicates port to create a queue on.
13869 * @hrq: The queue structure to use to create the header receive queue.
13870 * @drq: The queue structure to use to create the data receive queue.
13871 * @cq: The completion queue to bind this work queue to.
13873 * This function creates a receive buffer queue pair , as detailed in @hrq and
13874 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
13877 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
13878 * struct is used to get the entry count that is necessary to determine the
13879 * number of pages to use for this queue. The @cq is used to indicate which
13880 * completion queue to bind received buffers that are posted to these queues to.
13881 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
13882 * receive queue pair. This function is asynchronous and will wait for the
13883 * mailbox command to finish before continuing.
13885 * On success this function will return a zero. If unable to allocate enough
13886 * memory this function will return -ENOMEM. If the queue create mailbox command
13887 * fails this function will return -ENXIO.
13890 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
13891 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
13893 struct lpfc_mbx_rq_create
*rq_create
;
13894 struct lpfc_dmabuf
*dmabuf
;
13895 LPFC_MBOXQ_t
*mbox
;
13896 int rc
, length
, status
= 0;
13897 uint32_t shdr_status
, shdr_add_status
;
13898 union lpfc_sli4_cfg_shdr
*shdr
;
13899 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
13900 void __iomem
*bar_memmap_p
;
13901 uint32_t db_offset
;
13902 uint16_t pci_barset
;
13904 /* sanity check on queue memory */
13905 if (!hrq
|| !drq
|| !cq
)
13907 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
13908 hw_page_size
= SLI4_PAGE_SIZE
;
13910 if (hrq
->entry_count
!= drq
->entry_count
)
13912 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13915 length
= (sizeof(struct lpfc_mbx_rq_create
) -
13916 sizeof(struct lpfc_sli4_cfg_mhdr
));
13917 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13918 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
13919 length
, LPFC_SLI4_MBX_EMBED
);
13920 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
13921 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
13922 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
13923 phba
->sli4_hba
.pc_sli4_params
.rqv
);
13924 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
13925 bf_set(lpfc_rq_context_rqe_count_1
,
13926 &rq_create
->u
.request
.context
,
13928 rq_create
->u
.request
.context
.buffer_size
= LPFC_HDR_BUF_SIZE
;
13929 bf_set(lpfc_rq_context_rqe_size
,
13930 &rq_create
->u
.request
.context
,
13932 bf_set(lpfc_rq_context_page_size
,
13933 &rq_create
->u
.request
.context
,
13934 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
13936 switch (hrq
->entry_count
) {
13938 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13939 "2535 Unsupported RQ count. (%d)\n",
13941 if (hrq
->entry_count
< 512) {
13945 /* otherwise default to smallest count (drop through) */
13947 bf_set(lpfc_rq_context_rqe_count
,
13948 &rq_create
->u
.request
.context
,
13949 LPFC_RQ_RING_SIZE_512
);
13952 bf_set(lpfc_rq_context_rqe_count
,
13953 &rq_create
->u
.request
.context
,
13954 LPFC_RQ_RING_SIZE_1024
);
13957 bf_set(lpfc_rq_context_rqe_count
,
13958 &rq_create
->u
.request
.context
,
13959 LPFC_RQ_RING_SIZE_2048
);
13962 bf_set(lpfc_rq_context_rqe_count
,
13963 &rq_create
->u
.request
.context
,
13964 LPFC_RQ_RING_SIZE_4096
);
13967 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
13968 LPFC_HDR_BUF_SIZE
);
13970 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
13972 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
13974 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
13975 memset(dmabuf
->virt
, 0, hw_page_size
);
13976 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
13977 putPaddrLow(dmabuf
->phys
);
13978 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
13979 putPaddrHigh(dmabuf
->phys
);
13981 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
13982 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
13984 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
13985 /* The IOCTL status is embedded in the mailbox subheader. */
13986 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
13987 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
13988 if (shdr_status
|| shdr_add_status
|| rc
) {
13989 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13990 "2504 RQ_CREATE mailbox failed with "
13991 "status x%x add_status x%x, mbx status x%x\n",
13992 shdr_status
, shdr_add_status
, rc
);
13996 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
13997 if (hrq
->queue_id
== 0xFFFF) {
14002 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
) {
14003 hrq
->db_format
= bf_get(lpfc_mbx_rq_create_db_format
,
14004 &rq_create
->u
.response
);
14005 if ((hrq
->db_format
!= LPFC_DB_LIST_FORMAT
) &&
14006 (hrq
->db_format
!= LPFC_DB_RING_FORMAT
)) {
14007 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14008 "3262 RQ [%d] doorbell format not "
14009 "supported: x%x\n", hrq
->queue_id
,
14015 pci_barset
= bf_get(lpfc_mbx_rq_create_bar_set
,
14016 &rq_create
->u
.response
);
14017 bar_memmap_p
= lpfc_dual_chute_pci_bar_map(phba
, pci_barset
);
14018 if (!bar_memmap_p
) {
14019 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14020 "3269 RQ[%d] failed to memmap pci "
14021 "barset:x%x\n", hrq
->queue_id
,
14027 db_offset
= rq_create
->u
.response
.doorbell_offset
;
14028 if ((db_offset
!= LPFC_ULP0_RQ_DOORBELL
) &&
14029 (db_offset
!= LPFC_ULP1_RQ_DOORBELL
)) {
14030 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14031 "3270 RQ[%d] doorbell offset not "
14032 "supported: x%x\n", hrq
->queue_id
,
14037 hrq
->db_regaddr
= bar_memmap_p
+ db_offset
;
14038 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
14039 "3266 RQ[qid:%d]: barset:x%x, offset:x%x, "
14040 "format:x%x\n", hrq
->queue_id
, pci_barset
,
14041 db_offset
, hrq
->db_format
);
14043 hrq
->db_format
= LPFC_DB_RING_FORMAT
;
14044 hrq
->db_regaddr
= phba
->sli4_hba
.RQDBregaddr
;
14046 hrq
->type
= LPFC_HRQ
;
14047 hrq
->assoc_qid
= cq
->queue_id
;
14048 hrq
->subtype
= subtype
;
14049 hrq
->host_index
= 0;
14050 hrq
->hba_index
= 0;
14052 /* now create the data queue */
14053 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14054 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
14055 length
, LPFC_SLI4_MBX_EMBED
);
14056 bf_set(lpfc_mbox_hdr_version
, &shdr
->request
,
14057 phba
->sli4_hba
.pc_sli4_params
.rqv
);
14058 if (phba
->sli4_hba
.pc_sli4_params
.rqv
== LPFC_Q_CREATE_VERSION_1
) {
14059 bf_set(lpfc_rq_context_rqe_count_1
,
14060 &rq_create
->u
.request
.context
, hrq
->entry_count
);
14061 rq_create
->u
.request
.context
.buffer_size
= LPFC_DATA_BUF_SIZE
;
14062 bf_set(lpfc_rq_context_rqe_size
, &rq_create
->u
.request
.context
,
14064 bf_set(lpfc_rq_context_page_size
, &rq_create
->u
.request
.context
,
14065 (PAGE_SIZE
/SLI4_PAGE_SIZE
));
14067 switch (drq
->entry_count
) {
14069 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14070 "2536 Unsupported RQ count. (%d)\n",
14072 if (drq
->entry_count
< 512) {
14076 /* otherwise default to smallest count (drop through) */
14078 bf_set(lpfc_rq_context_rqe_count
,
14079 &rq_create
->u
.request
.context
,
14080 LPFC_RQ_RING_SIZE_512
);
14083 bf_set(lpfc_rq_context_rqe_count
,
14084 &rq_create
->u
.request
.context
,
14085 LPFC_RQ_RING_SIZE_1024
);
14088 bf_set(lpfc_rq_context_rqe_count
,
14089 &rq_create
->u
.request
.context
,
14090 LPFC_RQ_RING_SIZE_2048
);
14093 bf_set(lpfc_rq_context_rqe_count
,
14094 &rq_create
->u
.request
.context
,
14095 LPFC_RQ_RING_SIZE_4096
);
14098 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
14099 LPFC_DATA_BUF_SIZE
);
14101 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
14103 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
14105 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
14106 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
14107 putPaddrLow(dmabuf
->phys
);
14108 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
14109 putPaddrHigh(dmabuf
->phys
);
14111 if (phba
->sli4_hba
.fw_func_mode
& LPFC_DUA_MODE
)
14112 bf_set(lpfc_mbx_rq_create_dua
, &rq_create
->u
.request
, 1);
14113 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14114 /* The IOCTL status is embedded in the mailbox subheader. */
14115 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
14116 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14117 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14118 if (shdr_status
|| shdr_add_status
|| rc
) {
14122 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
14123 if (drq
->queue_id
== 0xFFFF) {
14127 drq
->type
= LPFC_DRQ
;
14128 drq
->assoc_qid
= cq
->queue_id
;
14129 drq
->subtype
= subtype
;
14130 drq
->host_index
= 0;
14131 drq
->hba_index
= 0;
14133 /* link the header and data RQs onto the parent cq child list */
14134 list_add_tail(&hrq
->list
, &cq
->child_list
);
14135 list_add_tail(&drq
->list
, &cq
->child_list
);
14138 mempool_free(mbox
, phba
->mbox_mem_pool
);
14143 * lpfc_eq_destroy - Destroy an event Queue on the HBA
14144 * @eq: The queue structure associated with the queue to destroy.
14146 * This function destroys a queue, as detailed in @eq by sending an mailbox
14147 * command, specific to the type of queue, to the HBA.
14149 * The @eq struct is used to get the queue ID of the queue to destroy.
14151 * On success this function will return a zero. If the queue destroy mailbox
14152 * command fails this function will return -ENXIO.
14155 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
14157 LPFC_MBOXQ_t
*mbox
;
14158 int rc
, length
, status
= 0;
14159 uint32_t shdr_status
, shdr_add_status
;
14160 union lpfc_sli4_cfg_shdr
*shdr
;
14162 /* sanity check on queue memory */
14165 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14168 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
14169 sizeof(struct lpfc_sli4_cfg_mhdr
));
14170 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14171 LPFC_MBOX_OPCODE_EQ_DESTROY
,
14172 length
, LPFC_SLI4_MBX_EMBED
);
14173 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
14175 mbox
->vport
= eq
->phba
->pport
;
14176 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14178 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
14179 /* The IOCTL status is embedded in the mailbox subheader. */
14180 shdr
= (union lpfc_sli4_cfg_shdr
*)
14181 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
14182 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14183 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14184 if (shdr_status
|| shdr_add_status
|| rc
) {
14185 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14186 "2505 EQ_DESTROY mailbox failed with "
14187 "status x%x add_status x%x, mbx status x%x\n",
14188 shdr_status
, shdr_add_status
, rc
);
14192 /* Remove eq from any list */
14193 list_del_init(&eq
->list
);
14194 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
14199 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
14200 * @cq: The queue structure associated with the queue to destroy.
14202 * This function destroys a queue, as detailed in @cq by sending an mailbox
14203 * command, specific to the type of queue, to the HBA.
14205 * The @cq struct is used to get the queue ID of the queue to destroy.
14207 * On success this function will return a zero. If the queue destroy mailbox
14208 * command fails this function will return -ENXIO.
14211 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
14213 LPFC_MBOXQ_t
*mbox
;
14214 int rc
, length
, status
= 0;
14215 uint32_t shdr_status
, shdr_add_status
;
14216 union lpfc_sli4_cfg_shdr
*shdr
;
14218 /* sanity check on queue memory */
14221 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14224 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
14225 sizeof(struct lpfc_sli4_cfg_mhdr
));
14226 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14227 LPFC_MBOX_OPCODE_CQ_DESTROY
,
14228 length
, LPFC_SLI4_MBX_EMBED
);
14229 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
14231 mbox
->vport
= cq
->phba
->pport
;
14232 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14233 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
14234 /* The IOCTL status is embedded in the mailbox subheader. */
14235 shdr
= (union lpfc_sli4_cfg_shdr
*)
14236 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
14237 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14238 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14239 if (shdr_status
|| shdr_add_status
|| rc
) {
14240 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14241 "2506 CQ_DESTROY mailbox failed with "
14242 "status x%x add_status x%x, mbx status x%x\n",
14243 shdr_status
, shdr_add_status
, rc
);
14246 /* Remove cq from any list */
14247 list_del_init(&cq
->list
);
14248 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
14253 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
14254 * @qm: The queue structure associated with the queue to destroy.
14256 * This function destroys a queue, as detailed in @mq by sending an mailbox
14257 * command, specific to the type of queue, to the HBA.
14259 * The @mq struct is used to get the queue ID of the queue to destroy.
14261 * On success this function will return a zero. If the queue destroy mailbox
14262 * command fails this function will return -ENXIO.
14265 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
14267 LPFC_MBOXQ_t
*mbox
;
14268 int rc
, length
, status
= 0;
14269 uint32_t shdr_status
, shdr_add_status
;
14270 union lpfc_sli4_cfg_shdr
*shdr
;
14272 /* sanity check on queue memory */
14275 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14278 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
14279 sizeof(struct lpfc_sli4_cfg_mhdr
));
14280 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
14281 LPFC_MBOX_OPCODE_MQ_DESTROY
,
14282 length
, LPFC_SLI4_MBX_EMBED
);
14283 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
14285 mbox
->vport
= mq
->phba
->pport
;
14286 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14287 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
14288 /* The IOCTL status is embedded in the mailbox subheader. */
14289 shdr
= (union lpfc_sli4_cfg_shdr
*)
14290 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
14291 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14292 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14293 if (shdr_status
|| shdr_add_status
|| rc
) {
14294 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14295 "2507 MQ_DESTROY mailbox failed with "
14296 "status x%x add_status x%x, mbx status x%x\n",
14297 shdr_status
, shdr_add_status
, rc
);
14300 /* Remove mq from any list */
14301 list_del_init(&mq
->list
);
14302 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
14307 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
14308 * @wq: The queue structure associated with the queue to destroy.
14310 * This function destroys a queue, as detailed in @wq by sending an mailbox
14311 * command, specific to the type of queue, to the HBA.
14313 * The @wq struct is used to get the queue ID of the queue to destroy.
14315 * On success this function will return a zero. If the queue destroy mailbox
14316 * command fails this function will return -ENXIO.
14319 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
14321 LPFC_MBOXQ_t
*mbox
;
14322 int rc
, length
, status
= 0;
14323 uint32_t shdr_status
, shdr_add_status
;
14324 union lpfc_sli4_cfg_shdr
*shdr
;
14326 /* sanity check on queue memory */
14329 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14332 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
14333 sizeof(struct lpfc_sli4_cfg_mhdr
));
14334 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14335 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
14336 length
, LPFC_SLI4_MBX_EMBED
);
14337 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
14339 mbox
->vport
= wq
->phba
->pport
;
14340 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14341 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
14342 shdr
= (union lpfc_sli4_cfg_shdr
*)
14343 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
14344 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14345 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14346 if (shdr_status
|| shdr_add_status
|| rc
) {
14347 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14348 "2508 WQ_DESTROY mailbox failed with "
14349 "status x%x add_status x%x, mbx status x%x\n",
14350 shdr_status
, shdr_add_status
, rc
);
14353 /* Remove wq from any list */
14354 list_del_init(&wq
->list
);
14355 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
14360 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
14361 * @rq: The queue structure associated with the queue to destroy.
14363 * This function destroys a queue, as detailed in @rq by sending an mailbox
14364 * command, specific to the type of queue, to the HBA.
14366 * The @rq struct is used to get the queue ID of the queue to destroy.
14368 * On success this function will return a zero. If the queue destroy mailbox
14369 * command fails this function will return -ENXIO.
14372 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
14373 struct lpfc_queue
*drq
)
14375 LPFC_MBOXQ_t
*mbox
;
14376 int rc
, length
, status
= 0;
14377 uint32_t shdr_status
, shdr_add_status
;
14378 union lpfc_sli4_cfg_shdr
*shdr
;
14380 /* sanity check on queue memory */
14383 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
14386 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
14387 sizeof(struct lpfc_sli4_cfg_mhdr
));
14388 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14389 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
14390 length
, LPFC_SLI4_MBX_EMBED
);
14391 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
14393 mbox
->vport
= hrq
->phba
->pport
;
14394 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
14395 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
14396 /* The IOCTL status is embedded in the mailbox subheader. */
14397 shdr
= (union lpfc_sli4_cfg_shdr
*)
14398 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
14399 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14400 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14401 if (shdr_status
|| shdr_add_status
|| rc
) {
14402 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14403 "2509 RQ_DESTROY mailbox failed with "
14404 "status x%x add_status x%x, mbx status x%x\n",
14405 shdr_status
, shdr_add_status
, rc
);
14406 if (rc
!= MBX_TIMEOUT
)
14407 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
14410 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
14412 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
14413 shdr
= (union lpfc_sli4_cfg_shdr
*)
14414 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
14415 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14416 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14417 if (shdr_status
|| shdr_add_status
|| rc
) {
14418 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14419 "2510 RQ_DESTROY mailbox failed with "
14420 "status x%x add_status x%x, mbx status x%x\n",
14421 shdr_status
, shdr_add_status
, rc
);
14424 list_del_init(&hrq
->list
);
14425 list_del_init(&drq
->list
);
14426 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
14431 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
14432 * @phba: The virtual port for which this call being executed.
14433 * @pdma_phys_addr0: Physical address of the 1st SGL page.
14434 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
14435 * @xritag: the xritag that ties this io to the SGL pages.
14437 * This routine will post the sgl pages for the IO that has the xritag
14438 * that is in the iocbq structure. The xritag is assigned during iocbq
14439 * creation and persists for as long as the driver is loaded.
14440 * if the caller has fewer than 256 scatter gather segments to map then
14441 * pdma_phys_addr1 should be 0.
14442 * If the caller needs to map more than 256 scatter gather segment then
14443 * pdma_phys_addr1 should be a valid physical address.
14444 * physical address for SGLs must be 64 byte aligned.
14445 * If you are going to map 2 SGL's then the first one must have 256 entries
14446 * the second sgl can have between 1 and 256 entries.
14450 * -ENXIO, -ENOMEM - Failure
14453 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
14454 dma_addr_t pdma_phys_addr0
,
14455 dma_addr_t pdma_phys_addr1
,
14458 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
14459 LPFC_MBOXQ_t
*mbox
;
14461 uint32_t shdr_status
, shdr_add_status
;
14463 union lpfc_sli4_cfg_shdr
*shdr
;
14465 if (xritag
== NO_XRI
) {
14466 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14467 "0364 Invalid param:\n");
14471 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14475 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14476 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
14477 sizeof(struct lpfc_mbx_post_sgl_pages
) -
14478 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
14480 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
14481 &mbox
->u
.mqe
.un
.post_sgl_pages
;
14482 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
14483 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
14485 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
14486 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
14487 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
14488 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
14490 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
14491 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
14492 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
14493 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
14494 if (!phba
->sli4_hba
.intr_enable
)
14495 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14497 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14498 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14500 /* The IOCTL status is embedded in the mailbox subheader. */
14501 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
14502 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14503 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14504 if (rc
!= MBX_TIMEOUT
)
14505 mempool_free(mbox
, phba
->mbox_mem_pool
);
14506 if (shdr_status
|| shdr_add_status
|| rc
) {
14507 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14508 "2511 POST_SGL mailbox failed with "
14509 "status x%x add_status x%x, mbx status x%x\n",
14510 shdr_status
, shdr_add_status
, rc
);
14516 * lpfc_sli4_alloc_xri - Get an available rpi in the device's range
14517 * @phba: pointer to lpfc hba data structure.
14519 * This routine is invoked to post rpi header templates to the
14520 * HBA consistent with the SLI-4 interface spec. This routine
14521 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
14522 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
14525 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
14526 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
14529 lpfc_sli4_alloc_xri(struct lpfc_hba
*phba
)
14534 * Fetch the next logical xri. Because this index is logical,
14535 * the driver starts at 0 each time.
14537 spin_lock_irq(&phba
->hbalock
);
14538 xri
= find_next_zero_bit(phba
->sli4_hba
.xri_bmask
,
14539 phba
->sli4_hba
.max_cfg_param
.max_xri
, 0);
14540 if (xri
>= phba
->sli4_hba
.max_cfg_param
.max_xri
) {
14541 spin_unlock_irq(&phba
->hbalock
);
14544 set_bit(xri
, phba
->sli4_hba
.xri_bmask
);
14545 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
14547 spin_unlock_irq(&phba
->hbalock
);
14552 * lpfc_sli4_free_xri - Release an xri for reuse.
14553 * @phba: pointer to lpfc hba data structure.
14555 * This routine is invoked to release an xri to the pool of
14556 * available rpis maintained by the driver.
14559 __lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
14561 if (test_and_clear_bit(xri
, phba
->sli4_hba
.xri_bmask
)) {
14562 phba
->sli4_hba
.max_cfg_param
.xri_used
--;
14567 * lpfc_sli4_free_xri - Release an xri for reuse.
14568 * @phba: pointer to lpfc hba data structure.
14570 * This routine is invoked to release an xri to the pool of
14571 * available rpis maintained by the driver.
14574 lpfc_sli4_free_xri(struct lpfc_hba
*phba
, int xri
)
14576 spin_lock_irq(&phba
->hbalock
);
14577 __lpfc_sli4_free_xri(phba
, xri
);
14578 spin_unlock_irq(&phba
->hbalock
);
14582 * lpfc_sli4_next_xritag - Get an xritag for the io
14583 * @phba: Pointer to HBA context object.
14585 * This function gets an xritag for the iocb. If there is no unused xritag
14586 * it will return 0xffff.
14587 * The function returns the allocated xritag if successful, else returns zero.
14588 * Zero is not a valid xritag.
14589 * The caller is not required to hold any lock.
14592 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
14594 uint16_t xri_index
;
14596 xri_index
= lpfc_sli4_alloc_xri(phba
);
14597 if (xri_index
== NO_XRI
)
14598 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
14599 "2004 Failed to allocate XRI.last XRITAG is %d"
14600 " Max XRI is %d, Used XRI is %d\n",
14602 phba
->sli4_hba
.max_cfg_param
.max_xri
,
14603 phba
->sli4_hba
.max_cfg_param
.xri_used
);
14608 * lpfc_sli4_post_els_sgl_list - post a block of ELS sgls to the port.
14609 * @phba: pointer to lpfc hba data structure.
14610 * @post_sgl_list: pointer to els sgl entry list.
14611 * @count: number of els sgl entries on the list.
14613 * This routine is invoked to post a block of driver's sgl pages to the
14614 * HBA using non-embedded mailbox command. No Lock is held. This routine
14615 * is only called when the driver is loading and after all IO has been
14619 lpfc_sli4_post_els_sgl_list(struct lpfc_hba
*phba
,
14620 struct list_head
*post_sgl_list
,
14623 struct lpfc_sglq
*sglq_entry
= NULL
, *sglq_next
= NULL
;
14624 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
14625 struct sgl_page_pairs
*sgl_pg_pairs
;
14627 LPFC_MBOXQ_t
*mbox
;
14628 uint32_t reqlen
, alloclen
, pg_pairs
;
14630 uint16_t xritag_start
= 0;
14632 uint32_t shdr_status
, shdr_add_status
;
14633 union lpfc_sli4_cfg_shdr
*shdr
;
14635 reqlen
= phba
->sli4_hba
.els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
14636 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
14637 if (reqlen
> SLI4_PAGE_SIZE
) {
14638 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
14639 "2559 Block sgl registration required DMA "
14640 "size (%d) great than a page\n", reqlen
);
14643 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14647 /* Allocate DMA memory and set up the non-embedded mailbox command */
14648 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14649 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
14650 LPFC_SLI4_MBX_NEMBED
);
14652 if (alloclen
< reqlen
) {
14653 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14654 "0285 Allocated DMA memory size (%d) is "
14655 "less than the requested DMA memory "
14656 "size (%d)\n", alloclen
, reqlen
);
14657 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14660 /* Set up the SGL pages in the non-embedded DMA pages */
14661 viraddr
= mbox
->sge_array
->addr
[0];
14662 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
14663 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
14666 list_for_each_entry_safe(sglq_entry
, sglq_next
, post_sgl_list
, list
) {
14667 /* Set up the sge entry */
14668 sgl_pg_pairs
->sgl_pg0_addr_lo
=
14669 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
14670 sgl_pg_pairs
->sgl_pg0_addr_hi
=
14671 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
14672 sgl_pg_pairs
->sgl_pg1_addr_lo
=
14673 cpu_to_le32(putPaddrLow(0));
14674 sgl_pg_pairs
->sgl_pg1_addr_hi
=
14675 cpu_to_le32(putPaddrHigh(0));
14677 /* Keep the first xritag on the list */
14679 xritag_start
= sglq_entry
->sli4_xritag
;
14684 /* Complete initialization and perform endian conversion. */
14685 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
14686 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, phba
->sli4_hba
.els_xri_cnt
);
14687 sgl
->word0
= cpu_to_le32(sgl
->word0
);
14688 if (!phba
->sli4_hba
.intr_enable
)
14689 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14691 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14692 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14694 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
14695 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14696 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14697 if (rc
!= MBX_TIMEOUT
)
14698 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14699 if (shdr_status
|| shdr_add_status
|| rc
) {
14700 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14701 "2513 POST_SGL_BLOCK mailbox command failed "
14702 "status x%x add_status x%x mbx status x%x\n",
14703 shdr_status
, shdr_add_status
, rc
);
14710 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
14711 * @phba: pointer to lpfc hba data structure.
14712 * @sblist: pointer to scsi buffer list.
14713 * @count: number of scsi buffers on the list.
14715 * This routine is invoked to post a block of @count scsi sgl pages from a
14716 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
14721 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
,
14722 struct list_head
*sblist
,
14725 struct lpfc_scsi_buf
*psb
;
14726 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
14727 struct sgl_page_pairs
*sgl_pg_pairs
;
14729 LPFC_MBOXQ_t
*mbox
;
14730 uint32_t reqlen
, alloclen
, pg_pairs
;
14732 uint16_t xritag_start
= 0;
14734 uint32_t shdr_status
, shdr_add_status
;
14735 dma_addr_t pdma_phys_bpl1
;
14736 union lpfc_sli4_cfg_shdr
*shdr
;
14738 /* Calculate the requested length of the dma memory */
14739 reqlen
= count
* sizeof(struct sgl_page_pairs
) +
14740 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
14741 if (reqlen
> SLI4_PAGE_SIZE
) {
14742 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
14743 "0217 Block sgl registration required DMA "
14744 "size (%d) great than a page\n", reqlen
);
14747 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
14749 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14750 "0283 Failed to allocate mbox cmd memory\n");
14754 /* Allocate DMA memory and set up the non-embedded mailbox command */
14755 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
14756 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
14757 LPFC_SLI4_MBX_NEMBED
);
14759 if (alloclen
< reqlen
) {
14760 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
14761 "2561 Allocated DMA memory size (%d) is "
14762 "less than the requested DMA memory "
14763 "size (%d)\n", alloclen
, reqlen
);
14764 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14768 /* Get the first SGE entry from the non-embedded DMA memory */
14769 viraddr
= mbox
->sge_array
->addr
[0];
14771 /* Set up the SGL pages in the non-embedded DMA pages */
14772 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
14773 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
14776 list_for_each_entry(psb
, sblist
, list
) {
14777 /* Set up the sge entry */
14778 sgl_pg_pairs
->sgl_pg0_addr_lo
=
14779 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
14780 sgl_pg_pairs
->sgl_pg0_addr_hi
=
14781 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
14782 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
14783 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
14785 pdma_phys_bpl1
= 0;
14786 sgl_pg_pairs
->sgl_pg1_addr_lo
=
14787 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
14788 sgl_pg_pairs
->sgl_pg1_addr_hi
=
14789 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
14790 /* Keep the first xritag on the list */
14792 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
14796 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
14797 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
14798 /* Perform endian conversion if necessary */
14799 sgl
->word0
= cpu_to_le32(sgl
->word0
);
14801 if (!phba
->sli4_hba
.intr_enable
)
14802 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
14804 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
14805 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
14807 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
14808 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
14809 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
14810 if (rc
!= MBX_TIMEOUT
)
14811 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
14812 if (shdr_status
|| shdr_add_status
|| rc
) {
14813 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
14814 "2564 POST_SGL_BLOCK mailbox command failed "
14815 "status x%x add_status x%x mbx status x%x\n",
14816 shdr_status
, shdr_add_status
, rc
);
14823 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
14824 * @phba: pointer to lpfc_hba struct that the frame was received on
14825 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14827 * This function checks the fields in the @fc_hdr to see if the FC frame is a
14828 * valid type of frame that the LPFC driver will handle. This function will
14829 * return a zero if the frame is a valid frame or a non zero value when the
14830 * frame does not pass the check.
14833 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
14835 /* make rctl_names static to save stack space */
14836 static char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
14837 char *type_names
[] = FC_TYPE_NAMES_INIT
;
14838 struct fc_vft_header
*fc_vft_hdr
;
14839 uint32_t *header
= (uint32_t *) fc_hdr
;
14841 switch (fc_hdr
->fh_r_ctl
) {
14842 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
14843 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
14844 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
14845 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
14846 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
14847 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
14848 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
14849 case FC_RCTL_DD_CMD_STATUS
: /* command status */
14850 case FC_RCTL_ELS_REQ
: /* extended link services request */
14851 case FC_RCTL_ELS_REP
: /* extended link services reply */
14852 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
14853 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
14854 case FC_RCTL_BA_NOP
: /* basic link service NOP */
14855 case FC_RCTL_BA_ABTS
: /* basic link service abort */
14856 case FC_RCTL_BA_RMC
: /* remove connection */
14857 case FC_RCTL_BA_ACC
: /* basic accept */
14858 case FC_RCTL_BA_RJT
: /* basic reject */
14859 case FC_RCTL_BA_PRMT
:
14860 case FC_RCTL_ACK_1
: /* acknowledge_1 */
14861 case FC_RCTL_ACK_0
: /* acknowledge_0 */
14862 case FC_RCTL_P_RJT
: /* port reject */
14863 case FC_RCTL_F_RJT
: /* fabric reject */
14864 case FC_RCTL_P_BSY
: /* port busy */
14865 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
14866 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
14867 case FC_RCTL_LCR
: /* link credit reset */
14868 case FC_RCTL_END
: /* end */
14870 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
14871 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
14872 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
14873 return lpfc_fc_frame_check(phba
, fc_hdr
);
14877 switch (fc_hdr
->fh_type
) {
14889 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
14890 "2538 Received frame rctl:%s (x%x), type:%s (x%x), "
14891 "frame Data:%08x %08x %08x %08x %08x %08x %08x\n",
14892 rctl_names
[fc_hdr
->fh_r_ctl
], fc_hdr
->fh_r_ctl
,
14893 type_names
[fc_hdr
->fh_type
], fc_hdr
->fh_type
,
14894 be32_to_cpu(header
[0]), be32_to_cpu(header
[1]),
14895 be32_to_cpu(header
[2]), be32_to_cpu(header
[3]),
14896 be32_to_cpu(header
[4]), be32_to_cpu(header
[5]),
14897 be32_to_cpu(header
[6]));
14900 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
14901 "2539 Dropped frame rctl:%s type:%s\n",
14902 rctl_names
[fc_hdr
->fh_r_ctl
],
14903 type_names
[fc_hdr
->fh_type
]);
14908 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
14909 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14911 * This function processes the FC header to retrieve the VFI from the VF
14912 * header, if one exists. This function will return the VFI if one exists
14913 * or 0 if no VSAN Header exists.
14916 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
14918 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
14920 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
14922 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
14926 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
14927 * @phba: Pointer to the HBA structure to search for the vport on
14928 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
14929 * @fcfi: The FC Fabric ID that the frame came from
14931 * This function searches the @phba for a vport that matches the content of the
14932 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
14933 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
14934 * returns the matching vport pointer or NULL if unable to match frame to a
14937 static struct lpfc_vport
*
14938 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
14941 struct lpfc_vport
**vports
;
14942 struct lpfc_vport
*vport
= NULL
;
14944 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
14945 fc_hdr
->fh_d_id
[1] << 8 |
14946 fc_hdr
->fh_d_id
[2]);
14948 if (did
== Fabric_DID
)
14949 return phba
->pport
;
14950 if ((phba
->pport
->fc_flag
& FC_PT2PT
) &&
14951 !(phba
->link_state
== LPFC_HBA_READY
))
14952 return phba
->pport
;
14954 vports
= lpfc_create_vport_work_array(phba
);
14955 if (vports
!= NULL
)
14956 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
14957 if (phba
->fcf
.fcfi
== fcfi
&&
14958 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
14959 vports
[i
]->fc_myDID
== did
) {
14964 lpfc_destroy_vport_work_array(phba
, vports
);
14969 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
14970 * @vport: The vport to work on.
14972 * This function updates the receive sequence time stamp for this vport. The
14973 * receive sequence time stamp indicates the time that the last frame of the
14974 * the sequence that has been idle for the longest amount of time was received.
14975 * the driver uses this time stamp to indicate if any received sequences have
14979 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
14981 struct lpfc_dmabuf
*h_buf
;
14982 struct hbq_dmabuf
*dmabuf
= NULL
;
14984 /* get the oldest sequence on the rcv list */
14985 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
14986 struct lpfc_dmabuf
, list
);
14989 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
14990 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
14994 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
14995 * @vport: The vport that the received sequences were sent to.
14997 * This function cleans up all outstanding received sequences. This is called
14998 * by the driver when a link event or user action invalidates all the received
15002 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
15004 struct lpfc_dmabuf
*h_buf
, *hnext
;
15005 struct lpfc_dmabuf
*d_buf
, *dnext
;
15006 struct hbq_dmabuf
*dmabuf
= NULL
;
15008 /* start with the oldest sequence on the rcv list */
15009 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
15010 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15011 list_del_init(&dmabuf
->hbuf
.list
);
15012 list_for_each_entry_safe(d_buf
, dnext
,
15013 &dmabuf
->dbuf
.list
, list
) {
15014 list_del_init(&d_buf
->list
);
15015 lpfc_in_buf_free(vport
->phba
, d_buf
);
15017 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
15022 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
15023 * @vport: The vport that the received sequences were sent to.
15025 * This function determines whether any received sequences have timed out by
15026 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
15027 * indicates that there is at least one timed out sequence this routine will
15028 * go through the received sequences one at a time from most inactive to most
15029 * active to determine which ones need to be cleaned up. Once it has determined
15030 * that a sequence needs to be cleaned up it will simply free up the resources
15031 * without sending an abort.
15034 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
15036 struct lpfc_dmabuf
*h_buf
, *hnext
;
15037 struct lpfc_dmabuf
*d_buf
, *dnext
;
15038 struct hbq_dmabuf
*dmabuf
= NULL
;
15039 unsigned long timeout
;
15040 int abort_count
= 0;
15042 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
15043 vport
->rcv_buffer_time_stamp
);
15044 if (list_empty(&vport
->rcv_buffer_list
) ||
15045 time_before(jiffies
, timeout
))
15047 /* start with the oldest sequence on the rcv list */
15048 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
15049 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15050 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
15051 dmabuf
->time_stamp
);
15052 if (time_before(jiffies
, timeout
))
15055 list_del_init(&dmabuf
->hbuf
.list
);
15056 list_for_each_entry_safe(d_buf
, dnext
,
15057 &dmabuf
->dbuf
.list
, list
) {
15058 list_del_init(&d_buf
->list
);
15059 lpfc_in_buf_free(vport
->phba
, d_buf
);
15061 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
15064 lpfc_update_rcv_time_stamp(vport
);
15068 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
15069 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
15071 * This function searches through the existing incomplete sequences that have
15072 * been sent to this @vport. If the frame matches one of the incomplete
15073 * sequences then the dbuf in the @dmabuf is added to the list of frames that
15074 * make up that sequence. If no sequence is found that matches this frame then
15075 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
15076 * This function returns a pointer to the first dmabuf in the sequence list that
15077 * the frame was linked to.
15079 static struct hbq_dmabuf
*
15080 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
15082 struct fc_frame_header
*new_hdr
;
15083 struct fc_frame_header
*temp_hdr
;
15084 struct lpfc_dmabuf
*d_buf
;
15085 struct lpfc_dmabuf
*h_buf
;
15086 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
15087 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
15090 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
15091 dmabuf
->time_stamp
= jiffies
;
15092 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15094 /* Use the hdr_buf to find the sequence that this frame belongs to */
15095 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
15096 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
15097 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
15098 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
15099 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
15101 /* found a pending sequence that matches this frame */
15102 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15107 * This indicates first frame received for this sequence.
15108 * Queue the buffer on the vport's rcv_buffer_list.
15110 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15111 lpfc_update_rcv_time_stamp(vport
);
15114 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
15115 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
15116 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
15117 list_del_init(&seq_dmabuf
->hbuf
.list
);
15118 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15119 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
15120 lpfc_update_rcv_time_stamp(vport
);
15123 /* move this sequence to the tail to indicate a young sequence */
15124 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
15125 seq_dmabuf
->time_stamp
= jiffies
;
15126 lpfc_update_rcv_time_stamp(vport
);
15127 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
15128 temp_hdr
= dmabuf
->hbuf
.virt
;
15129 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
15132 /* find the correct place in the sequence to insert this frame */
15133 d_buf
= list_entry(seq_dmabuf
->dbuf
.list
.prev
, typeof(*d_buf
), list
);
15135 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15136 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
15138 * If the frame's sequence count is greater than the frame on
15139 * the list then insert the frame right after this frame
15141 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
15142 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
15143 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
15148 if (&d_buf
->list
== &seq_dmabuf
->dbuf
.list
)
15150 d_buf
= list_entry(d_buf
->list
.prev
, typeof(*d_buf
), list
);
15159 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
15160 * @vport: pointer to a vitural port
15161 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15163 * This function tries to abort from the partially assembed sequence, described
15164 * by the information from basic abbort @dmabuf. It checks to see whether such
15165 * partially assembled sequence held by the driver. If so, it shall free up all
15166 * the frames from the partially assembled sequence.
15169 * true -- if there is matching partially assembled sequence present and all
15170 * the frames freed with the sequence;
15171 * false -- if there is no matching partially assembled sequence present so
15172 * nothing got aborted in the lower layer driver
15175 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
15176 struct hbq_dmabuf
*dmabuf
)
15178 struct fc_frame_header
*new_hdr
;
15179 struct fc_frame_header
*temp_hdr
;
15180 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
15181 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
15183 /* Use the hdr_buf to find the sequence that matches this frame */
15184 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
15185 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
15186 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15187 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
15188 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
15189 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
15190 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
15191 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
15193 /* found a pending sequence that matches this frame */
15194 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
15198 /* Free up all the frames from the partially assembled sequence */
15200 list_for_each_entry_safe(d_buf
, n_buf
,
15201 &seq_dmabuf
->dbuf
.list
, list
) {
15202 list_del_init(&d_buf
->list
);
15203 lpfc_in_buf_free(vport
->phba
, d_buf
);
15211 * lpfc_sli4_abort_ulp_seq - Abort assembled unsol sequence from ulp
15212 * @vport: pointer to a vitural port
15213 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15215 * This function tries to abort from the assembed sequence from upper level
15216 * protocol, described by the information from basic abbort @dmabuf. It
15217 * checks to see whether such pending context exists at upper level protocol.
15218 * If so, it shall clean up the pending context.
15221 * true -- if there is matching pending context of the sequence cleaned
15223 * false -- if there is no matching pending context of the sequence present
15227 lpfc_sli4_abort_ulp_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
15229 struct lpfc_hba
*phba
= vport
->phba
;
15232 /* Accepting abort at ulp with SLI4 only */
15233 if (phba
->sli_rev
< LPFC_SLI_REV4
)
15236 /* Register all caring upper level protocols to attend abort */
15237 handled
= lpfc_ct_handle_unsol_abort(phba
, dmabuf
);
15245 * lpfc_sli4_seq_abort_rsp_cmpl - BLS ABORT RSP seq abort iocb complete handler
15246 * @phba: Pointer to HBA context object.
15247 * @cmd_iocbq: pointer to the command iocbq structure.
15248 * @rsp_iocbq: pointer to the response iocbq structure.
15250 * This function handles the sequence abort response iocb command complete
15251 * event. It properly releases the memory allocated to the sequence abort
15255 lpfc_sli4_seq_abort_rsp_cmpl(struct lpfc_hba
*phba
,
15256 struct lpfc_iocbq
*cmd_iocbq
,
15257 struct lpfc_iocbq
*rsp_iocbq
)
15259 struct lpfc_nodelist
*ndlp
;
15262 ndlp
= (struct lpfc_nodelist
*)cmd_iocbq
->context1
;
15263 lpfc_nlp_put(ndlp
);
15264 lpfc_nlp_not_used(ndlp
);
15265 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
15268 /* Failure means BLS ABORT RSP did not get delivered to remote node*/
15269 if (rsp_iocbq
&& rsp_iocbq
->iocb
.ulpStatus
)
15270 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15271 "3154 BLS ABORT RSP failed, data: x%x/x%x\n",
15272 rsp_iocbq
->iocb
.ulpStatus
,
15273 rsp_iocbq
->iocb
.un
.ulpWord
[4]);
15277 * lpfc_sli4_xri_inrange - check xri is in range of xris owned by driver.
15278 * @phba: Pointer to HBA context object.
15279 * @xri: xri id in transaction.
15281 * This function validates the xri maps to the known range of XRIs allocated an
15282 * used by the driver.
15285 lpfc_sli4_xri_inrange(struct lpfc_hba
*phba
,
15290 for (i
= 0; i
< phba
->sli4_hba
.max_cfg_param
.max_xri
; i
++) {
15291 if (xri
== phba
->sli4_hba
.xri_ids
[i
])
15298 * lpfc_sli4_seq_abort_rsp - bls rsp to sequence abort
15299 * @phba: Pointer to HBA context object.
15300 * @fc_hdr: pointer to a FC frame header.
15302 * This function sends a basic response to a previous unsol sequence abort
15303 * event after aborting the sequence handling.
15306 lpfc_sli4_seq_abort_rsp(struct lpfc_vport
*vport
,
15307 struct fc_frame_header
*fc_hdr
, bool aborted
)
15309 struct lpfc_hba
*phba
= vport
->phba
;
15310 struct lpfc_iocbq
*ctiocb
= NULL
;
15311 struct lpfc_nodelist
*ndlp
;
15312 uint16_t oxid
, rxid
, xri
, lxri
;
15313 uint32_t sid
, fctl
;
15317 if (!lpfc_is_link_up(phba
))
15320 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
15321 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
15322 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
15324 ndlp
= lpfc_findnode_did(vport
, sid
);
15326 ndlp
= mempool_alloc(phba
->nlp_mem_pool
, GFP_KERNEL
);
15328 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
15329 "1268 Failed to allocate ndlp for "
15330 "oxid:x%x SID:x%x\n", oxid
, sid
);
15333 lpfc_nlp_init(vport
, ndlp
, sid
);
15334 /* Put ndlp onto pport node list */
15335 lpfc_enqueue_node(vport
, ndlp
);
15336 } else if (!NLP_CHK_NODE_ACT(ndlp
)) {
15337 /* re-setup ndlp without removing from node list */
15338 ndlp
= lpfc_enable_node(vport
, ndlp
, NLP_STE_UNUSED_NODE
);
15340 lpfc_printf_vlog(vport
, KERN_WARNING
, LOG_ELS
,
15341 "3275 Failed to active ndlp found "
15342 "for oxid:x%x SID:x%x\n", oxid
, sid
);
15347 /* Allocate buffer for rsp iocb */
15348 ctiocb
= lpfc_sli_get_iocbq(phba
);
15352 /* Extract the F_CTL field from FC_HDR */
15353 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
15355 icmd
= &ctiocb
->iocb
;
15356 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
15357 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
15358 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
15359 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
15360 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
15362 /* Fill in the rest of iocb fields */
15363 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
15364 icmd
->ulpBdeCount
= 0;
15366 icmd
->ulpClass
= CLASS3
;
15367 icmd
->ulpContext
= phba
->sli4_hba
.rpi_ids
[ndlp
->nlp_rpi
];
15368 ctiocb
->context1
= lpfc_nlp_get(ndlp
);
15370 ctiocb
->iocb_cmpl
= NULL
;
15371 ctiocb
->vport
= phba
->pport
;
15372 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_rsp_cmpl
;
15373 ctiocb
->sli4_lxritag
= NO_XRI
;
15374 ctiocb
->sli4_xritag
= NO_XRI
;
15376 if (fctl
& FC_FC_EX_CTX
)
15377 /* Exchange responder sent the abort so we
15383 lxri
= lpfc_sli4_xri_inrange(phba
, xri
);
15384 if (lxri
!= NO_XRI
)
15385 lpfc_set_rrq_active(phba
, ndlp
, lxri
,
15386 (xri
== oxid
) ? rxid
: oxid
, 0);
15387 /* For BA_ABTS from exchange responder, if the logical xri with
15388 * the oxid maps to the FCP XRI range, the port no longer has
15389 * that exchange context, send a BLS_RJT. Override the IOCB for
15392 if ((fctl
& FC_FC_EX_CTX
) &&
15393 (lxri
> lpfc_sli4_get_els_iocb_cnt(phba
))) {
15394 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
15395 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
15396 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
15397 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
15400 /* If BA_ABTS failed to abort a partially assembled receive sequence,
15401 * the driver no longer has that exchange, send a BLS_RJT. Override
15402 * the IOCB for a BA_RJT.
15404 if (aborted
== false) {
15405 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_RJT
;
15406 bf_set(lpfc_vndr_code
, &icmd
->un
.bls_rsp
, 0);
15407 bf_set(lpfc_rsn_expln
, &icmd
->un
.bls_rsp
, FC_BA_RJT_INV_XID
);
15408 bf_set(lpfc_rsn_code
, &icmd
->un
.bls_rsp
, FC_BA_RJT_UNABLE
);
15411 if (fctl
& FC_FC_EX_CTX
) {
15412 /* ABTS sent by responder to CT exchange, construction
15413 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
15414 * field and RX_ID from ABTS for RX_ID field.
15416 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_RSP
);
15418 /* ABTS sent by initiator to CT exchange, construction
15419 * of BA_ACC will need to allocate a new XRI as for the
15422 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_rsp
, LPFC_ABTS_UNSOL_INT
);
15424 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_rsp
, rxid
);
15425 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_rsp
, oxid
);
15427 /* Xmit CT abts response on exchange <xid> */
15428 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_ELS
,
15429 "1200 Send BLS cmd x%x on oxid x%x Data: x%x\n",
15430 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
, phba
->link_state
);
15432 rc
= lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
15433 if (rc
== IOCB_ERROR
) {
15434 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_ELS
,
15435 "2925 Failed to issue CT ABTS RSP x%x on "
15436 "xri x%x, Data x%x\n",
15437 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
, oxid
,
15439 lpfc_nlp_put(ndlp
);
15440 ctiocb
->context1
= NULL
;
15441 lpfc_sli_release_iocbq(phba
, ctiocb
);
15446 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
15447 * @vport: Pointer to the vport on which this sequence was received
15448 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15450 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
15451 * receive sequence is only partially assembed by the driver, it shall abort
15452 * the partially assembled frames for the sequence. Otherwise, if the
15453 * unsolicited receive sequence has been completely assembled and passed to
15454 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
15455 * unsolicited sequence has been aborted. After that, it will issue a basic
15456 * accept to accept the abort.
15459 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
15460 struct hbq_dmabuf
*dmabuf
)
15462 struct lpfc_hba
*phba
= vport
->phba
;
15463 struct fc_frame_header fc_hdr
;
15467 /* Make a copy of fc_hdr before the dmabuf being released */
15468 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
15469 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
15471 if (fctl
& FC_FC_EX_CTX
) {
15472 /* ABTS by responder to exchange, no cleanup needed */
15475 /* ABTS by initiator to exchange, need to do cleanup */
15476 aborted
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
15477 if (aborted
== false)
15478 aborted
= lpfc_sli4_abort_ulp_seq(vport
, dmabuf
);
15480 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15482 /* Respond with BA_ACC or BA_RJT accordingly */
15483 lpfc_sli4_seq_abort_rsp(vport
, &fc_hdr
, aborted
);
15487 * lpfc_seq_complete - Indicates if a sequence is complete
15488 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15490 * This function checks the sequence, starting with the frame described by
15491 * @dmabuf, to see if all the frames associated with this sequence are present.
15492 * the frames associated with this sequence are linked to the @dmabuf using the
15493 * dbuf list. This function looks for two major things. 1) That the first frame
15494 * has a sequence count of zero. 2) There is a frame with last frame of sequence
15495 * set. 3) That there are no holes in the sequence count. The function will
15496 * return 1 when the sequence is complete, otherwise it will return 0.
15499 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
15501 struct fc_frame_header
*hdr
;
15502 struct lpfc_dmabuf
*d_buf
;
15503 struct hbq_dmabuf
*seq_dmabuf
;
15507 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15508 /* make sure first fame of sequence has a sequence count of zero */
15509 if (hdr
->fh_seq_cnt
!= seq_count
)
15511 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
15512 hdr
->fh_f_ctl
[1] << 8 |
15514 /* If last frame of sequence we can return success. */
15515 if (fctl
& FC_FC_END_SEQ
)
15517 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
15518 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15519 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15520 /* If there is a hole in the sequence count then fail. */
15521 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
15523 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
15524 hdr
->fh_f_ctl
[1] << 8 |
15526 /* If last frame of sequence we can return success. */
15527 if (fctl
& FC_FC_END_SEQ
)
15534 * lpfc_prep_seq - Prep sequence for ULP processing
15535 * @vport: Pointer to the vport on which this sequence was received
15536 * @dmabuf: pointer to a dmabuf that describes the FC sequence
15538 * This function takes a sequence, described by a list of frames, and creates
15539 * a list of iocbq structures to describe the sequence. This iocbq list will be
15540 * used to issue to the generic unsolicited sequence handler. This routine
15541 * returns a pointer to the first iocbq in the list. If the function is unable
15542 * to allocate an iocbq then it throw out the received frames that were not
15543 * able to be described and return a pointer to the first iocbq. If unable to
15544 * allocate any iocbqs (including the first) this function will return NULL.
15546 static struct lpfc_iocbq
*
15547 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
15549 struct hbq_dmabuf
*hbq_buf
;
15550 struct lpfc_dmabuf
*d_buf
, *n_buf
;
15551 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
15552 struct fc_frame_header
*fc_hdr
;
15554 uint32_t len
, tot_len
;
15555 struct ulp_bde64
*pbde
;
15557 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15558 /* remove from receive buffer list */
15559 list_del_init(&seq_dmabuf
->hbuf
.list
);
15560 lpfc_update_rcv_time_stamp(vport
);
15561 /* get the Remote Port's SID */
15562 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
15564 /* Get an iocbq struct to fill in. */
15565 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
15567 /* Initialize the first IOCB. */
15568 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
15569 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
15571 /* Check FC Header to see what TYPE of frame we are rcv'ing */
15572 if (sli4_type_from_fc_hdr(fc_hdr
) == FC_TYPE_ELS
) {
15573 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_ELS64_CX
;
15574 first_iocbq
->iocb
.un
.rcvels
.parmRo
=
15575 sli4_did_from_fc_hdr(fc_hdr
);
15576 first_iocbq
->iocb
.ulpPU
= PARM_NPIV_DID
;
15578 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
15579 first_iocbq
->iocb
.ulpContext
= NO_XRI
;
15580 first_iocbq
->iocb
.unsli3
.rcvsli3
.ox_id
=
15581 be16_to_cpu(fc_hdr
->fh_ox_id
);
15582 /* iocbq is prepped for internal consumption. Physical vpi. */
15583 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
15584 vport
->phba
->vpi_ids
[vport
->vpi
];
15585 /* put the first buffer into the first IOCBq */
15586 tot_len
= bf_get(lpfc_rcqe_length
,
15587 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15589 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
15590 first_iocbq
->context3
= NULL
;
15591 first_iocbq
->iocb
.ulpBdeCount
= 1;
15592 if (tot_len
> LPFC_DATA_BUF_SIZE
)
15593 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
15594 LPFC_DATA_BUF_SIZE
;
15596 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
= tot_len
;
15598 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
15600 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
15602 iocbq
= first_iocbq
;
15604 * Each IOCBq can have two Buffers assigned, so go through the list
15605 * of buffers for this sequence and save two buffers in each IOCBq
15607 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
15609 lpfc_in_buf_free(vport
->phba
, d_buf
);
15612 if (!iocbq
->context3
) {
15613 iocbq
->context3
= d_buf
;
15614 iocbq
->iocb
.ulpBdeCount
++;
15615 /* We need to get the size out of the right CQE */
15616 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15617 len
= bf_get(lpfc_rcqe_length
,
15618 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
15619 pbde
= (struct ulp_bde64
*)
15620 &iocbq
->iocb
.unsli3
.sli3Words
[4];
15621 if (len
> LPFC_DATA_BUF_SIZE
)
15622 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
15624 pbde
->tus
.f
.bdeSize
= len
;
15626 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+= len
;
15629 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
15632 first_iocbq
->iocb
.ulpStatus
=
15633 IOSTAT_FCP_RSP_ERROR
;
15634 first_iocbq
->iocb
.un
.ulpWord
[4] =
15635 IOERR_NO_RESOURCES
;
15637 lpfc_in_buf_free(vport
->phba
, d_buf
);
15640 /* We need to get the size out of the right CQE */
15641 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
15642 len
= bf_get(lpfc_rcqe_length
,
15643 &hbq_buf
->cq_event
.cqe
.rcqe_cmpl
);
15644 iocbq
->context2
= d_buf
;
15645 iocbq
->context3
= NULL
;
15646 iocbq
->iocb
.ulpBdeCount
= 1;
15647 if (len
> LPFC_DATA_BUF_SIZE
)
15648 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
15649 LPFC_DATA_BUF_SIZE
;
15651 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
= len
;
15654 iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= tot_len
;
15656 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
15657 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
15660 return first_iocbq
;
15664 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
15665 struct hbq_dmabuf
*seq_dmabuf
)
15667 struct fc_frame_header
*fc_hdr
;
15668 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
15669 struct lpfc_hba
*phba
= vport
->phba
;
15671 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
15672 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
15674 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15675 "2707 Ring %d handler: Failed to allocate "
15676 "iocb Rctl x%x Type x%x received\n",
15678 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
15681 if (!lpfc_complete_unsol_iocb(phba
,
15682 &phba
->sli
.ring
[LPFC_ELS_RING
],
15683 iocbq
, fc_hdr
->fh_r_ctl
,
15685 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15686 "2540 Ring %d handler: unexpected Rctl "
15687 "x%x Type x%x received\n",
15689 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
15691 /* Free iocb created in lpfc_prep_seq */
15692 list_for_each_entry_safe(curr_iocb
, next_iocb
,
15693 &iocbq
->list
, list
) {
15694 list_del_init(&curr_iocb
->list
);
15695 lpfc_sli_release_iocbq(phba
, curr_iocb
);
15697 lpfc_sli_release_iocbq(phba
, iocbq
);
15701 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
15702 * @phba: Pointer to HBA context object.
15704 * This function is called with no lock held. This function processes all
15705 * the received buffers and gives it to upper layers when a received buffer
15706 * indicates that it is the final frame in the sequence. The interrupt
15707 * service routine processes received buffers at interrupt contexts and adds
15708 * received dma buffers to the rb_pend_list queue and signals the worker thread.
15709 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
15710 * appropriate receive function when the final frame in a sequence is received.
15713 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
15714 struct hbq_dmabuf
*dmabuf
)
15716 struct hbq_dmabuf
*seq_dmabuf
;
15717 struct fc_frame_header
*fc_hdr
;
15718 struct lpfc_vport
*vport
;
15722 /* Process each received buffer */
15723 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
15724 /* check to see if this a valid type of frame */
15725 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
15726 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15729 if ((bf_get(lpfc_cqe_code
,
15730 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
) == CQE_CODE_RECEIVE_V1
))
15731 fcfi
= bf_get(lpfc_rcqe_fcf_id_v1
,
15732 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15734 fcfi
= bf_get(lpfc_rcqe_fcf_id
,
15735 &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
15737 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
15739 /* throw out the frame */
15740 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15744 /* d_id this frame is directed to */
15745 did
= sli4_did_from_fc_hdr(fc_hdr
);
15747 /* vport is registered unless we rcv a FLOGI directed to Fabric_DID */
15748 if (!(vport
->vpi_state
& LPFC_VPI_REGISTERED
) &&
15749 (did
!= Fabric_DID
)) {
15751 * Throw out the frame if we are not pt2pt.
15752 * The pt2pt protocol allows for discovery frames
15753 * to be received without a registered VPI.
15755 if (!(vport
->fc_flag
& FC_PT2PT
) ||
15756 (phba
->link_state
== LPFC_HBA_READY
)) {
15757 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15762 /* Handle the basic abort sequence (BA_ABTS) event */
15763 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
15764 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
15768 /* Link this frame */
15769 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
15771 /* unable to add frame to vport - throw it out */
15772 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
15775 /* If not last frame in sequence continue processing frames. */
15776 if (!lpfc_seq_complete(seq_dmabuf
))
15779 /* Send the complete sequence to the upper layer protocol */
15780 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
15784 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
15785 * @phba: pointer to lpfc hba data structure.
15787 * This routine is invoked to post rpi header templates to the
15788 * HBA consistent with the SLI-4 interface spec. This routine
15789 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15790 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15792 * This routine does not require any locks. It's usage is expected
15793 * to be driver load or reset recovery when the driver is
15798 * -EIO - The mailbox failed to complete successfully.
15799 * When this error occurs, the driver is not guaranteed
15800 * to have any rpi regions posted to the device and
15801 * must either attempt to repost the regions or take a
15805 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
15807 struct lpfc_rpi_hdr
*rpi_page
;
15811 /* SLI4 ports that support extents do not require RPI headers. */
15812 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
15814 if (phba
->sli4_hba
.extents_in_use
)
15817 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
15819 * Assign the rpi headers a physical rpi only if the driver
15820 * has not initialized those resources. A port reset only
15821 * needs the headers posted.
15823 if (bf_get(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
) !=
15825 rpi_page
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
15827 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
15828 if (rc
!= MBX_SUCCESS
) {
15829 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15830 "2008 Error %d posting all rpi "
15838 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
,
15839 LPFC_RPI_RSRC_RDY
);
15844 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
15845 * @phba: pointer to lpfc hba data structure.
15846 * @rpi_page: pointer to the rpi memory region.
15848 * This routine is invoked to post a single rpi header to the
15849 * HBA consistent with the SLI-4 interface spec. This memory region
15850 * maps up to 64 rpi context regions.
15854 * -ENOMEM - No available memory
15855 * -EIO - The mailbox failed to complete successfully.
15858 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
15860 LPFC_MBOXQ_t
*mboxq
;
15861 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
15863 uint32_t shdr_status
, shdr_add_status
;
15864 union lpfc_sli4_cfg_shdr
*shdr
;
15866 /* SLI4 ports that support extents do not require RPI headers. */
15867 if (!phba
->sli4_hba
.rpi_hdrs_in_use
)
15869 if (phba
->sli4_hba
.extents_in_use
)
15872 /* The port is notified of the header region via a mailbox command. */
15873 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
15875 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15876 "2001 Unable to allocate memory for issuing "
15877 "SLI_CONFIG_SPECIAL mailbox command\n");
15881 /* Post all rpi memory regions to the port. */
15882 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
15883 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
15884 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
15885 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
15886 sizeof(struct lpfc_sli4_cfg_mhdr
),
15887 LPFC_SLI4_MBX_EMBED
);
15890 /* Post the physical rpi to the port for this rpi header. */
15891 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
15892 rpi_page
->start_rpi
);
15893 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
15894 hdr_tmpl
, rpi_page
->page_count
);
15896 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
15897 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
15898 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
15899 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
15900 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
15901 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
15902 if (rc
!= MBX_TIMEOUT
)
15903 mempool_free(mboxq
, phba
->mbox_mem_pool
);
15904 if (shdr_status
|| shdr_add_status
|| rc
) {
15905 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
15906 "2514 POST_RPI_HDR mailbox failed with "
15907 "status x%x add_status x%x, mbx status x%x\n",
15908 shdr_status
, shdr_add_status
, rc
);
15915 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
15916 * @phba: pointer to lpfc hba data structure.
15918 * This routine is invoked to post rpi header templates to the
15919 * HBA consistent with the SLI-4 interface spec. This routine
15920 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
15921 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
15924 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
15925 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
15928 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
15931 uint16_t max_rpi
, rpi_limit
;
15932 uint16_t rpi_remaining
, lrpi
= 0;
15933 struct lpfc_rpi_hdr
*rpi_hdr
;
15934 unsigned long iflag
;
15937 * Fetch the next logical rpi. Because this index is logical,
15938 * the driver starts at 0 each time.
15940 spin_lock_irqsave(&phba
->hbalock
, iflag
);
15941 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
15942 rpi_limit
= phba
->sli4_hba
.next_rpi
;
15944 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, 0);
15945 if (rpi
>= rpi_limit
)
15946 rpi
= LPFC_RPI_ALLOC_ERROR
;
15948 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
15949 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
15950 phba
->sli4_hba
.rpi_count
++;
15952 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
15953 "0001 rpi:%x max:%x lim:%x\n",
15954 (int) rpi
, max_rpi
, rpi_limit
);
15957 * Don't try to allocate more rpi header regions if the device limit
15958 * has been exhausted.
15960 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
15961 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
15962 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15967 * RPI header postings are not required for SLI4 ports capable of
15970 if (!phba
->sli4_hba
.rpi_hdrs_in_use
) {
15971 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15976 * If the driver is running low on rpi resources, allocate another
15977 * page now. Note that the next_rpi value is used because
15978 * it represents how many are actually in use whereas max_rpi notes
15979 * how many are supported max by the device.
15981 rpi_remaining
= phba
->sli4_hba
.next_rpi
- phba
->sli4_hba
.rpi_count
;
15982 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
15983 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
15984 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
15986 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
15987 "2002 Error Could not grow rpi "
15990 lrpi
= rpi_hdr
->start_rpi
;
15991 rpi_hdr
->start_rpi
= phba
->sli4_hba
.rpi_ids
[lrpi
];
15992 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
16000 * lpfc_sli4_free_rpi - Release an rpi for reuse.
16001 * @phba: pointer to lpfc hba data structure.
16003 * This routine is invoked to release an rpi to the pool of
16004 * available rpis maintained by the driver.
16007 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
16009 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
16010 phba
->sli4_hba
.rpi_count
--;
16011 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
16016 * lpfc_sli4_free_rpi - Release an rpi for reuse.
16017 * @phba: pointer to lpfc hba data structure.
16019 * This routine is invoked to release an rpi to the pool of
16020 * available rpis maintained by the driver.
16023 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
16025 spin_lock_irq(&phba
->hbalock
);
16026 __lpfc_sli4_free_rpi(phba
, rpi
);
16027 spin_unlock_irq(&phba
->hbalock
);
16031 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
16032 * @phba: pointer to lpfc hba data structure.
16034 * This routine is invoked to remove the memory region that
16035 * provided rpi via a bitmask.
16038 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
16040 kfree(phba
->sli4_hba
.rpi_bmask
);
16041 kfree(phba
->sli4_hba
.rpi_ids
);
16042 bf_set(lpfc_rpi_rsrc_rdy
, &phba
->sli4_hba
.sli4_flags
, 0);
16046 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
16047 * @phba: pointer to lpfc hba data structure.
16049 * This routine is invoked to remove the memory region that
16050 * provided rpi via a bitmask.
16053 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
,
16054 void (*cmpl
)(struct lpfc_hba
*, LPFC_MBOXQ_t
*), void *arg
)
16056 LPFC_MBOXQ_t
*mboxq
;
16057 struct lpfc_hba
*phba
= ndlp
->phba
;
16060 /* The port is notified of the header region via a mailbox command. */
16061 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16065 /* Post all rpi memory regions to the port. */
16066 lpfc_resume_rpi(mboxq
, ndlp
);
16068 mboxq
->mbox_cmpl
= cmpl
;
16069 mboxq
->context1
= arg
;
16070 mboxq
->context2
= ndlp
;
16072 mboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
16073 mboxq
->vport
= ndlp
->vport
;
16074 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16075 if (rc
== MBX_NOT_FINISHED
) {
16076 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16077 "2010 Resume RPI Mailbox failed "
16078 "status %d, mbxStatus x%x\n", rc
,
16079 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
16080 mempool_free(mboxq
, phba
->mbox_mem_pool
);
16087 * lpfc_sli4_init_vpi - Initialize a vpi with the port
16088 * @vport: Pointer to the vport for which the vpi is being initialized
16090 * This routine is invoked to activate a vpi with the port.
16094 * -Evalue otherwise
16097 lpfc_sli4_init_vpi(struct lpfc_vport
*vport
)
16099 LPFC_MBOXQ_t
*mboxq
;
16101 int retval
= MBX_SUCCESS
;
16103 struct lpfc_hba
*phba
= vport
->phba
;
16104 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16107 lpfc_init_vpi(phba
, mboxq
, vport
->vpi
);
16108 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mboxq
);
16109 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
16110 if (rc
!= MBX_SUCCESS
) {
16111 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
16112 "2022 INIT VPI Mailbox failed "
16113 "status %d, mbxStatus x%x\n", rc
,
16114 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
16117 if (rc
!= MBX_TIMEOUT
)
16118 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
16124 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
16125 * @phba: pointer to lpfc hba data structure.
16126 * @mboxq: Pointer to mailbox object.
16128 * This routine is invoked to manually add a single FCF record. The caller
16129 * must pass a completely initialized FCF_Record. This routine takes
16130 * care of the nonembedded mailbox operations.
16133 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
16136 union lpfc_sli4_cfg_shdr
*shdr
;
16137 uint32_t shdr_status
, shdr_add_status
;
16139 virt_addr
= mboxq
->sge_array
->addr
[0];
16140 /* The IOCTL status is embedded in the mailbox subheader. */
16141 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
16142 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
16143 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
16145 if ((shdr_status
|| shdr_add_status
) &&
16146 (shdr_status
!= STATUS_FCF_IN_USE
))
16147 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16148 "2558 ADD_FCF_RECORD mailbox failed with "
16149 "status x%x add_status x%x\n",
16150 shdr_status
, shdr_add_status
);
16152 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16156 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
16157 * @phba: pointer to lpfc hba data structure.
16158 * @fcf_record: pointer to the initialized fcf record to add.
16160 * This routine is invoked to manually add a single FCF record. The caller
16161 * must pass a completely initialized FCF_Record. This routine takes
16162 * care of the nonembedded mailbox operations.
16165 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
16168 LPFC_MBOXQ_t
*mboxq
;
16171 struct lpfc_mbx_sge sge
;
16172 uint32_t alloc_len
, req_len
;
16175 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16177 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16178 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
16182 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
16185 /* Allocate DMA memory and set up the non-embedded mailbox command */
16186 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
16187 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
16188 req_len
, LPFC_SLI4_MBX_NEMBED
);
16189 if (alloc_len
< req_len
) {
16190 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16191 "2523 Allocated DMA memory size (x%x) is "
16192 "less than the requested DMA memory "
16193 "size (x%x)\n", alloc_len
, req_len
);
16194 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16199 * Get the first SGE entry from the non-embedded DMA memory. This
16200 * routine only uses a single SGE.
16202 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
16203 virt_addr
= mboxq
->sge_array
->addr
[0];
16205 * Configure the FCF record for FCFI 0. This is the driver's
16206 * hardcoded default and gets used in nonFIP mode.
16208 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
16209 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
16210 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
16213 * Copy the fcf_index and the FCF Record Data. The data starts after
16214 * the FCoE header plus word10. The data copy needs to be endian
16217 bytep
+= sizeof(uint32_t);
16218 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
16219 mboxq
->vport
= phba
->pport
;
16220 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
16221 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16222 if (rc
== MBX_NOT_FINISHED
) {
16223 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16224 "2515 ADD_FCF_RECORD mailbox failed with "
16225 "status 0x%x\n", rc
);
16226 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16235 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
16236 * @phba: pointer to lpfc hba data structure.
16237 * @fcf_record: pointer to the fcf record to write the default data.
16238 * @fcf_index: FCF table entry index.
16240 * This routine is invoked to build the driver's default FCF record. The
16241 * values used are hardcoded. This routine handles memory initialization.
16245 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
16246 struct fcf_record
*fcf_record
,
16247 uint16_t fcf_index
)
16249 memset(fcf_record
, 0, sizeof(struct fcf_record
));
16250 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
16251 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
16252 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
16253 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
16254 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
16255 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
16256 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
16257 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
16258 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
16259 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
16260 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
16261 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
16262 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
16263 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
16264 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
16265 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
16266 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
16267 /* Set the VLAN bit map */
16268 if (phba
->valid_vlan
) {
16269 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
16270 = 1 << (phba
->vlan_id
% 8);
16275 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
16276 * @phba: pointer to lpfc hba data structure.
16277 * @fcf_index: FCF table entry offset.
16279 * This routine is invoked to scan the entire FCF table by reading FCF
16280 * record and processing it one at a time starting from the @fcf_index
16281 * for initial FCF discovery or fast FCF failover rediscovery.
16283 * Return 0 if the mailbox command is submitted successfully, none 0
16287 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16290 LPFC_MBOXQ_t
*mboxq
;
16292 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
16293 phba
->fcoe_cvl_eventtag_attn
= phba
->fcoe_cvl_eventtag
;
16294 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16296 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16297 "2000 Failed to allocate mbox for "
16300 goto fail_fcf_scan
;
16302 /* Construct the read FCF record mailbox command */
16303 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16306 goto fail_fcf_scan
;
16308 /* Issue the mailbox command asynchronously */
16309 mboxq
->vport
= phba
->pport
;
16310 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
16312 spin_lock_irq(&phba
->hbalock
);
16313 phba
->hba_flag
|= FCF_TS_INPROG
;
16314 spin_unlock_irq(&phba
->hbalock
);
16316 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16317 if (rc
== MBX_NOT_FINISHED
)
16320 /* Reset eligible FCF count for new scan */
16321 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
16322 phba
->fcf
.eligible_fcf_cnt
= 0;
16328 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16329 /* FCF scan failed, clear FCF_TS_INPROG flag */
16330 spin_lock_irq(&phba
->hbalock
);
16331 phba
->hba_flag
&= ~FCF_TS_INPROG
;
16332 spin_unlock_irq(&phba
->hbalock
);
16338 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
16339 * @phba: pointer to lpfc hba data structure.
16340 * @fcf_index: FCF table entry offset.
16342 * This routine is invoked to read an FCF record indicated by @fcf_index
16343 * and to use it for FLOGI roundrobin FCF failover.
16345 * Return 0 if the mailbox command is submitted successfully, none 0
16349 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16352 LPFC_MBOXQ_t
*mboxq
;
16354 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16356 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
16357 "2763 Failed to allocate mbox for "
16360 goto fail_fcf_read
;
16362 /* Construct the read FCF record mailbox command */
16363 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16366 goto fail_fcf_read
;
16368 /* Issue the mailbox command asynchronously */
16369 mboxq
->vport
= phba
->pport
;
16370 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
16371 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16372 if (rc
== MBX_NOT_FINISHED
)
16378 if (error
&& mboxq
)
16379 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16384 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
16385 * @phba: pointer to lpfc hba data structure.
16386 * @fcf_index: FCF table entry offset.
16388 * This routine is invoked to read an FCF record indicated by @fcf_index to
16389 * determine whether it's eligible for FLOGI roundrobin failover list.
16391 * Return 0 if the mailbox command is submitted successfully, none 0
16395 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16398 LPFC_MBOXQ_t
*mboxq
;
16400 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16402 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
16403 "2758 Failed to allocate mbox for "
16406 goto fail_fcf_read
;
16408 /* Construct the read FCF record mailbox command */
16409 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
16412 goto fail_fcf_read
;
16414 /* Issue the mailbox command asynchronously */
16415 mboxq
->vport
= phba
->pport
;
16416 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
16417 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
16418 if (rc
== MBX_NOT_FINISHED
)
16424 if (error
&& mboxq
)
16425 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
16430 * lpfc_check_next_fcf_pri_level
16431 * phba pointer to the lpfc_hba struct for this port.
16432 * This routine is called from the lpfc_sli4_fcf_rr_next_index_get
16433 * routine when the rr_bmask is empty. The FCF indecies are put into the
16434 * rr_bmask based on their priority level. Starting from the highest priority
16435 * to the lowest. The most likely FCF candidate will be in the highest
16436 * priority group. When this routine is called it searches the fcf_pri list for
16437 * next lowest priority group and repopulates the rr_bmask with only those
16440 * 1=success 0=failure
16443 lpfc_check_next_fcf_pri_level(struct lpfc_hba
*phba
)
16445 uint16_t next_fcf_pri
;
16446 uint16_t last_index
;
16447 struct lpfc_fcf_pri
*fcf_pri
;
16451 last_index
= find_first_bit(phba
->fcf
.fcf_rr_bmask
,
16452 LPFC_SLI4_FCF_TBL_INDX_MAX
);
16453 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16454 "3060 Last IDX %d\n", last_index
);
16456 /* Verify the priority list has 2 or more entries */
16457 spin_lock_irq(&phba
->hbalock
);
16458 if (list_empty(&phba
->fcf
.fcf_pri_list
) ||
16459 list_is_singular(&phba
->fcf
.fcf_pri_list
)) {
16460 spin_unlock_irq(&phba
->hbalock
);
16461 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16462 "3061 Last IDX %d\n", last_index
);
16463 return 0; /* Empty rr list */
16465 spin_unlock_irq(&phba
->hbalock
);
16469 * Clear the rr_bmask and set all of the bits that are at this
16472 memset(phba
->fcf
.fcf_rr_bmask
, 0,
16473 sizeof(*phba
->fcf
.fcf_rr_bmask
));
16474 spin_lock_irq(&phba
->hbalock
);
16475 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
16476 if (fcf_pri
->fcf_rec
.flag
& LPFC_FCF_FLOGI_FAILED
)
16479 * the 1st priority that has not FLOGI failed
16480 * will be the highest.
16483 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
16484 spin_unlock_irq(&phba
->hbalock
);
16485 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
16486 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
16487 fcf_pri
->fcf_rec
.fcf_index
);
16491 spin_lock_irq(&phba
->hbalock
);
16494 * if next_fcf_pri was not set above and the list is not empty then
16495 * we have failed flogis on all of them. So reset flogi failed
16496 * and start at the beginning.
16498 if (!next_fcf_pri
&& !list_empty(&phba
->fcf
.fcf_pri_list
)) {
16499 list_for_each_entry(fcf_pri
, &phba
->fcf
.fcf_pri_list
, list
) {
16500 fcf_pri
->fcf_rec
.flag
&= ~LPFC_FCF_FLOGI_FAILED
;
16502 * the 1st priority that has not FLOGI failed
16503 * will be the highest.
16506 next_fcf_pri
= fcf_pri
->fcf_rec
.priority
;
16507 spin_unlock_irq(&phba
->hbalock
);
16508 if (fcf_pri
->fcf_rec
.priority
== next_fcf_pri
) {
16509 rc
= lpfc_sli4_fcf_rr_index_set(phba
,
16510 fcf_pri
->fcf_rec
.fcf_index
);
16514 spin_lock_irq(&phba
->hbalock
);
16518 spin_unlock_irq(&phba
->hbalock
);
16523 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
16524 * @phba: pointer to lpfc hba data structure.
16526 * This routine is to get the next eligible FCF record index in a round
16527 * robin fashion. If the next eligible FCF record index equals to the
16528 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
16529 * shall be returned, otherwise, the next eligible FCF record's index
16530 * shall be returned.
16533 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
16535 uint16_t next_fcf_index
;
16538 /* Search start from next bit of currently registered FCF index */
16539 next_fcf_index
= phba
->fcf
.current_rec
.fcf_indx
;
16542 /* Determine the next fcf index to check */
16543 next_fcf_index
= (next_fcf_index
+ 1) % LPFC_SLI4_FCF_TBL_INDX_MAX
;
16544 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
16545 LPFC_SLI4_FCF_TBL_INDX_MAX
,
16548 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
16549 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16551 * If we have wrapped then we need to clear the bits that
16552 * have been tested so that we can detect when we should
16553 * change the priority level.
16555 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
16556 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
16560 /* Check roundrobin failover list empty condition */
16561 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
||
16562 next_fcf_index
== phba
->fcf
.current_rec
.fcf_indx
) {
16564 * If next fcf index is not found check if there are lower
16565 * Priority level fcf's in the fcf_priority list.
16566 * Set up the rr_bmask with all of the avaiable fcf bits
16567 * at that level and continue the selection process.
16569 if (lpfc_check_next_fcf_pri_level(phba
))
16570 goto initial_priority
;
16571 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
16572 "2844 No roundrobin failover FCF available\n");
16573 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
16574 return LPFC_FCOE_FCF_NEXT_NONE
;
16576 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
16577 "3063 Only FCF available idx %d, flag %x\n",
16579 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
);
16580 return next_fcf_index
;
16584 if (next_fcf_index
< LPFC_SLI4_FCF_TBL_INDX_MAX
&&
16585 phba
->fcf
.fcf_pri
[next_fcf_index
].fcf_rec
.flag
&
16586 LPFC_FCF_FLOGI_FAILED
) {
16587 if (list_is_singular(&phba
->fcf
.fcf_pri_list
))
16588 return LPFC_FCOE_FCF_NEXT_NONE
;
16590 goto next_priority
;
16593 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16594 "2845 Get next roundrobin failover FCF (x%x)\n",
16597 return next_fcf_index
;
16601 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
16602 * @phba: pointer to lpfc hba data structure.
16604 * This routine sets the FCF record index in to the eligible bmask for
16605 * roundrobin failover search. It checks to make sure that the index
16606 * does not go beyond the range of the driver allocated bmask dimension
16607 * before setting the bit.
16609 * Returns 0 if the index bit successfully set, otherwise, it returns
16613 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16615 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16616 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16617 "2610 FCF (x%x) reached driver's book "
16618 "keeping dimension:x%x\n",
16619 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
16622 /* Set the eligible FCF record index bmask */
16623 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
16625 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16626 "2790 Set FCF (x%x) to roundrobin FCF failover "
16627 "bmask\n", fcf_index
);
16633 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
16634 * @phba: pointer to lpfc hba data structure.
16636 * This routine clears the FCF record index from the eligible bmask for
16637 * roundrobin failover search. It checks to make sure that the index
16638 * does not go beyond the range of the driver allocated bmask dimension
16639 * before clearing the bit.
16642 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
16644 struct lpfc_fcf_pri
*fcf_pri
, *fcf_pri_next
;
16645 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
16646 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16647 "2762 FCF (x%x) reached driver's book "
16648 "keeping dimension:x%x\n",
16649 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
16652 /* Clear the eligible FCF record index bmask */
16653 spin_lock_irq(&phba
->hbalock
);
16654 list_for_each_entry_safe(fcf_pri
, fcf_pri_next
, &phba
->fcf
.fcf_pri_list
,
16656 if (fcf_pri
->fcf_rec
.fcf_index
== fcf_index
) {
16657 list_del_init(&fcf_pri
->list
);
16661 spin_unlock_irq(&phba
->hbalock
);
16662 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
16664 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16665 "2791 Clear FCF (x%x) from roundrobin failover "
16666 "bmask\n", fcf_index
);
16670 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
16671 * @phba: pointer to lpfc hba data structure.
16673 * This routine is the completion routine for the rediscover FCF table mailbox
16674 * command. If the mailbox command returned failure, it will try to stop the
16675 * FCF rediscover wait timer.
16678 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
16680 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
16681 uint32_t shdr_status
, shdr_add_status
;
16683 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
16685 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
16686 &redisc_fcf
->header
.cfg_shdr
.response
);
16687 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
16688 &redisc_fcf
->header
.cfg_shdr
.response
);
16689 if (shdr_status
|| shdr_add_status
) {
16690 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
16691 "2746 Requesting for FCF rediscovery failed "
16692 "status x%x add_status x%x\n",
16693 shdr_status
, shdr_add_status
);
16694 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
16695 spin_lock_irq(&phba
->hbalock
);
16696 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
16697 spin_unlock_irq(&phba
->hbalock
);
16699 * CVL event triggered FCF rediscover request failed,
16700 * last resort to re-try current registered FCF entry.
16702 lpfc_retry_pport_discovery(phba
);
16704 spin_lock_irq(&phba
->hbalock
);
16705 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
16706 spin_unlock_irq(&phba
->hbalock
);
16708 * DEAD FCF event triggered FCF rediscover request
16709 * failed, last resort to fail over as a link down
16710 * to FCF registration.
16712 lpfc_sli4_fcf_dead_failthrough(phba
);
16715 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
16716 "2775 Start FCF rediscover quiescent timer\n");
16718 * Start FCF rediscovery wait timer for pending FCF
16719 * before rescan FCF record table.
16721 lpfc_fcf_redisc_wait_start_timer(phba
);
16724 mempool_free(mbox
, phba
->mbox_mem_pool
);
16728 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
16729 * @phba: pointer to lpfc hba data structure.
16731 * This routine is invoked to request for rediscovery of the entire FCF table
16735 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
16737 LPFC_MBOXQ_t
*mbox
;
16738 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
16741 /* Cancel retry delay timers to all vports before FCF rediscover */
16742 lpfc_cancel_all_vport_retry_delay_timer(phba
);
16744 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16746 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
16747 "2745 Failed to allocate mbox for "
16748 "requesting FCF rediscover.\n");
16752 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
16753 sizeof(struct lpfc_sli4_cfg_mhdr
));
16754 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
16755 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
16756 length
, LPFC_SLI4_MBX_EMBED
);
16758 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
16759 /* Set count to 0 for invalidating the entire FCF database */
16760 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
16762 /* Issue the mailbox command asynchronously */
16763 mbox
->vport
= phba
->pport
;
16764 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
16765 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
16767 if (rc
== MBX_NOT_FINISHED
) {
16768 mempool_free(mbox
, phba
->mbox_mem_pool
);
16775 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
16776 * @phba: pointer to lpfc hba data structure.
16778 * This function is the failover routine as a last resort to the FCF DEAD
16779 * event when driver failed to perform fast FCF failover.
16782 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
16784 uint32_t link_state
;
16787 * Last resort as FCF DEAD event failover will treat this as
16788 * a link down, but save the link state because we don't want
16789 * it to be changed to Link Down unless it is already down.
16791 link_state
= phba
->link_state
;
16792 lpfc_linkdown(phba
);
16793 phba
->link_state
= link_state
;
16795 /* Unregister FCF if no devices connected to it */
16796 lpfc_unregister_unused_fcf(phba
);
16800 * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
16801 * @phba: pointer to lpfc hba data structure.
16802 * @rgn23_data: pointer to configure region 23 data.
16804 * This function gets SLI3 port configure region 23 data through memory dump
16805 * mailbox command. When it successfully retrieves data, the size of the data
16806 * will be returned, otherwise, 0 will be returned.
16809 lpfc_sli_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
16811 LPFC_MBOXQ_t
*pmb
= NULL
;
16813 uint32_t offset
= 0;
16819 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16821 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16822 "2600 failed to allocate mailbox memory\n");
16828 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
16829 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
16831 if (rc
!= MBX_SUCCESS
) {
16832 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
16833 "2601 failed to read config "
16834 "region 23, rc 0x%x Status 0x%x\n",
16835 rc
, mb
->mbxStatus
);
16836 mb
->un
.varDmp
.word_cnt
= 0;
16839 * dump mem may return a zero when finished or we got a
16840 * mailbox error, either way we are done.
16842 if (mb
->un
.varDmp
.word_cnt
== 0)
16844 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
16845 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
16847 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
16848 rgn23_data
+ offset
,
16849 mb
->un
.varDmp
.word_cnt
);
16850 offset
+= mb
->un
.varDmp
.word_cnt
;
16851 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
16853 mempool_free(pmb
, phba
->mbox_mem_pool
);
16858 * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
16859 * @phba: pointer to lpfc hba data structure.
16860 * @rgn23_data: pointer to configure region 23 data.
16862 * This function gets SLI4 port configure region 23 data through memory dump
16863 * mailbox command. When it successfully retrieves data, the size of the data
16864 * will be returned, otherwise, 0 will be returned.
16867 lpfc_sli4_get_config_region23(struct lpfc_hba
*phba
, char *rgn23_data
)
16869 LPFC_MBOXQ_t
*mboxq
= NULL
;
16870 struct lpfc_dmabuf
*mp
= NULL
;
16871 struct lpfc_mqe
*mqe
;
16872 uint32_t data_length
= 0;
16878 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
16880 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16881 "3105 failed to allocate mailbox memory\n");
16885 if (lpfc_sli4_dump_cfg_rg23(phba
, mboxq
))
16887 mqe
= &mboxq
->u
.mqe
;
16888 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
16889 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
16892 data_length
= mqe
->un
.mb_words
[5];
16893 if (data_length
== 0)
16895 if (data_length
> DMP_RGN23_SIZE
) {
16899 lpfc_sli_pcimem_bcopy((char *)mp
->virt
, rgn23_data
, data_length
);
16901 mempool_free(mboxq
, phba
->mbox_mem_pool
);
16903 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
16906 return data_length
;
16910 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
16911 * @phba: pointer to lpfc hba data structure.
16913 * This function read region 23 and parse TLV for port status to
16914 * decide if the user disaled the port. If the TLV indicates the
16915 * port is disabled, the hba_flag is set accordingly.
16918 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
16920 uint8_t *rgn23_data
= NULL
;
16921 uint32_t if_type
, data_size
, sub_tlv_len
, tlv_offset
;
16922 uint32_t offset
= 0;
16924 /* Get adapter Region 23 data */
16925 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
16929 if (phba
->sli_rev
< LPFC_SLI_REV4
)
16930 data_size
= lpfc_sli_get_config_region23(phba
, rgn23_data
);
16932 if_type
= bf_get(lpfc_sli_intf_if_type
,
16933 &phba
->sli4_hba
.sli_intf
);
16934 if (if_type
== LPFC_SLI_INTF_IF_TYPE_0
)
16936 data_size
= lpfc_sli4_get_config_region23(phba
, rgn23_data
);
16942 /* Check the region signature first */
16943 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
16944 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16945 "2619 Config region 23 has bad signature\n");
16950 /* Check the data structure version */
16951 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
16952 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
16953 "2620 Config region 23 has bad version\n");
16958 /* Parse TLV entries in the region */
16959 while (offset
< data_size
) {
16960 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
16963 * If the TLV is not driver specific TLV or driver id is
16964 * not linux driver id, skip the record.
16966 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
16967 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
16968 (rgn23_data
[offset
+ 3] != 0)) {
16969 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16973 /* Driver found a driver specific TLV in the config region */
16974 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
16979 * Search for configured port state sub-TLV.
16981 while ((offset
< data_size
) &&
16982 (tlv_offset
< sub_tlv_len
)) {
16983 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
16988 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
16989 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16990 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
16994 /* This HBA contains PORT_STE configured */
16995 if (!rgn23_data
[offset
+ 2])
16996 phba
->hba_flag
|= LINK_DISABLED
;
17008 * lpfc_wr_object - write an object to the firmware
17009 * @phba: HBA structure that indicates port to create a queue on.
17010 * @dmabuf_list: list of dmabufs to write to the port.
17011 * @size: the total byte value of the objects to write to the port.
17012 * @offset: the current offset to be used to start the transfer.
17014 * This routine will create a wr_object mailbox command to send to the port.
17015 * the mailbox command will be constructed using the dma buffers described in
17016 * @dmabuf_list to create a list of BDEs. This routine will fill in as many
17017 * BDEs that the imbedded mailbox can support. The @offset variable will be
17018 * used to indicate the starting offset of the transfer and will also return
17019 * the offset after the write object mailbox has completed. @size is used to
17020 * determine the end of the object and whether the eof bit should be set.
17022 * Return 0 is successful and offset will contain the the new offset to use
17023 * for the next write.
17024 * Return negative value for error cases.
17027 lpfc_wr_object(struct lpfc_hba
*phba
, struct list_head
*dmabuf_list
,
17028 uint32_t size
, uint32_t *offset
)
17030 struct lpfc_mbx_wr_object
*wr_object
;
17031 LPFC_MBOXQ_t
*mbox
;
17033 uint32_t shdr_status
, shdr_add_status
;
17035 union lpfc_sli4_cfg_shdr
*shdr
;
17036 struct lpfc_dmabuf
*dmabuf
;
17037 uint32_t written
= 0;
17039 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
17043 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
17044 LPFC_MBOX_OPCODE_WRITE_OBJECT
,
17045 sizeof(struct lpfc_mbx_wr_object
) -
17046 sizeof(struct lpfc_sli4_cfg_mhdr
), LPFC_SLI4_MBX_EMBED
);
17048 wr_object
= (struct lpfc_mbx_wr_object
*)&mbox
->u
.mqe
.un
.wr_object
;
17049 wr_object
->u
.request
.write_offset
= *offset
;
17050 sprintf((uint8_t *)wr_object
->u
.request
.object_name
, "/");
17051 wr_object
->u
.request
.object_name
[0] =
17052 cpu_to_le32(wr_object
->u
.request
.object_name
[0]);
17053 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 0);
17054 list_for_each_entry(dmabuf
, dmabuf_list
, list
) {
17055 if (i
>= LPFC_MBX_WR_CONFIG_MAX_BDE
|| written
>= size
)
17057 wr_object
->u
.request
.bde
[i
].addrLow
= putPaddrLow(dmabuf
->phys
);
17058 wr_object
->u
.request
.bde
[i
].addrHigh
=
17059 putPaddrHigh(dmabuf
->phys
);
17060 if (written
+ SLI4_PAGE_SIZE
>= size
) {
17061 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
17063 written
+= (size
- written
);
17064 bf_set(lpfc_wr_object_eof
, &wr_object
->u
.request
, 1);
17066 wr_object
->u
.request
.bde
[i
].tus
.f
.bdeSize
=
17068 written
+= SLI4_PAGE_SIZE
;
17072 wr_object
->u
.request
.bde_count
= i
;
17073 bf_set(lpfc_wr_object_write_length
, &wr_object
->u
.request
, written
);
17074 if (!phba
->sli4_hba
.intr_enable
)
17075 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
17077 mbox_tmo
= lpfc_mbox_tmo_val(phba
, mbox
);
17078 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
17080 /* The IOCTL status is embedded in the mailbox subheader. */
17081 shdr
= (union lpfc_sli4_cfg_shdr
*) &wr_object
->header
.cfg_shdr
;
17082 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
17083 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
17084 if (rc
!= MBX_TIMEOUT
)
17085 mempool_free(mbox
, phba
->mbox_mem_pool
);
17086 if (shdr_status
|| shdr_add_status
|| rc
) {
17087 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
17088 "3025 Write Object mailbox failed with "
17089 "status x%x add_status x%x, mbx status x%x\n",
17090 shdr_status
, shdr_add_status
, rc
);
17093 *offset
+= wr_object
->u
.response
.actual_write_length
;
17098 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
17099 * @vport: pointer to vport data structure.
17101 * This function iterate through the mailboxq and clean up all REG_LOGIN
17102 * and REG_VPI mailbox commands associated with the vport. This function
17103 * is called when driver want to restart discovery of the vport due to
17104 * a Clear Virtual Link event.
17107 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
17109 struct lpfc_hba
*phba
= vport
->phba
;
17110 LPFC_MBOXQ_t
*mb
, *nextmb
;
17111 struct lpfc_dmabuf
*mp
;
17112 struct lpfc_nodelist
*ndlp
;
17113 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
17114 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
17115 LIST_HEAD(mbox_cmd_list
);
17116 uint8_t restart_loop
;
17118 /* Clean up internally queued mailbox commands with the vport */
17119 spin_lock_irq(&phba
->hbalock
);
17120 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
17121 if (mb
->vport
!= vport
)
17124 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
17125 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
17128 list_del(&mb
->list
);
17129 list_add_tail(&mb
->list
, &mbox_cmd_list
);
17131 /* Clean up active mailbox command with the vport */
17132 mb
= phba
->sli
.mbox_active
;
17133 if (mb
&& (mb
->vport
== vport
)) {
17134 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
17135 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
17136 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
17137 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17138 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
17139 /* Put reference count for delayed processing */
17140 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
17141 /* Unregister the RPI when mailbox complete */
17142 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
17145 /* Cleanup any mailbox completions which are not yet processed */
17148 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
17150 * If this mailox is already processed or it is
17151 * for another vport ignore it.
17153 if ((mb
->vport
!= vport
) ||
17154 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
))
17157 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
17158 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
17161 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
17162 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17163 ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
17164 /* Unregister the RPI when mailbox complete */
17165 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
17167 spin_unlock_irq(&phba
->hbalock
);
17168 spin_lock(shost
->host_lock
);
17169 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17170 spin_unlock(shost
->host_lock
);
17171 spin_lock_irq(&phba
->hbalock
);
17175 } while (restart_loop
);
17177 spin_unlock_irq(&phba
->hbalock
);
17179 /* Release the cleaned-up mailbox commands */
17180 while (!list_empty(&mbox_cmd_list
)) {
17181 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
17182 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
17183 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
17185 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
17188 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
17189 mb
->context2
= NULL
;
17191 spin_lock(shost
->host_lock
);
17192 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17193 spin_unlock(shost
->host_lock
);
17194 lpfc_nlp_put(ndlp
);
17197 mempool_free(mb
, phba
->mbox_mem_pool
);
17200 /* Release the ndlp with the cleaned-up active mailbox command */
17201 if (act_mbx_ndlp
) {
17202 spin_lock(shost
->host_lock
);
17203 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
17204 spin_unlock(shost
->host_lock
);
17205 lpfc_nlp_put(act_mbx_ndlp
);
17210 * lpfc_drain_txq - Drain the txq
17211 * @phba: Pointer to HBA context object.
17213 * This function attempt to submit IOCBs on the txq
17214 * to the adapter. For SLI4 adapters, the txq contains
17215 * ELS IOCBs that have been deferred because the there
17216 * are no SGLs. This congestion can occur with large
17217 * vport counts during node discovery.
17221 lpfc_drain_txq(struct lpfc_hba
*phba
)
17223 LIST_HEAD(completions
);
17224 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
17225 struct lpfc_iocbq
*piocbq
= NULL
;
17226 unsigned long iflags
= 0;
17227 char *fail_msg
= NULL
;
17228 struct lpfc_sglq
*sglq
;
17229 union lpfc_wqe wqe
;
17230 uint32_t txq_cnt
= 0;
17232 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
17233 list_for_each_entry(piocbq
, &pring
->txq
, list
) {
17237 if (txq_cnt
> pring
->txq_max
)
17238 pring
->txq_max
= txq_cnt
;
17240 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17242 while (!list_empty(&pring
->txq
)) {
17243 spin_lock_irqsave(&pring
->ring_lock
, iflags
);
17245 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
17247 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17248 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
17249 "2823 txq empty and txq_cnt is %d\n ",
17253 sglq
= __lpfc_sli_get_sglq(phba
, piocbq
);
17255 __lpfc_sli_ringtx_put(phba
, pring
, piocbq
);
17256 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17261 /* The xri and iocb resources secured,
17262 * attempt to issue request
17264 piocbq
->sli4_lxritag
= sglq
->sli4_lxritag
;
17265 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
17266 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
17267 fail_msg
= "to convert bpl to sgl";
17268 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
17269 fail_msg
= "to convert iocb to wqe";
17270 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
17271 fail_msg
= " - Wq is full";
17273 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
17276 /* Failed means we can't issue and need to cancel */
17277 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
17278 "2822 IOCB failed %s iotag 0x%x "
17281 piocbq
->iotag
, piocbq
->sli4_xritag
);
17282 list_add_tail(&piocbq
->list
, &completions
);
17284 spin_unlock_irqrestore(&pring
->ring_lock
, iflags
);
17287 /* Cancel all the IOCBs that cannot be issued */
17288 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
17289 IOERR_SLI_ABORTED
);