1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2009 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/blkdev.h>
23 #include <linux/pci.h>
24 #include <linux/interrupt.h>
25 #include <linux/delay.h>
26 #include <linux/slab.h>
28 #include <scsi/scsi.h>
29 #include <scsi/scsi_cmnd.h>
30 #include <scsi/scsi_device.h>
31 #include <scsi/scsi_host.h>
32 #include <scsi/scsi_transport_fc.h>
33 #include <scsi/fc/fc_fs.h>
34 #include <linux/aer.h>
39 #include "lpfc_sli4.h"
41 #include "lpfc_disc.h"
42 #include "lpfc_scsi.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
46 #include "lpfc_compat.h"
47 #include "lpfc_debugfs.h"
48 #include "lpfc_vport.h"
50 /* There are only four IOCB completion types. */
51 typedef enum _lpfc_iocb_type
{
59 /* Provide function prototypes local to this module. */
60 static int lpfc_sli_issue_mbox_s4(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
62 static int lpfc_sli4_read_rev(struct lpfc_hba
*, LPFC_MBOXQ_t
*,
63 uint8_t *, uint32_t *);
64 static struct lpfc_iocbq
*lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*,
66 static void lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*,
69 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq
*iocbq
)
75 * lpfc_sli4_wq_put - Put a Work Queue Entry on an Work Queue
76 * @q: The Work Queue to operate on.
77 * @wqe: The work Queue Entry to put on the Work queue.
79 * This routine will copy the contents of @wqe to the next available entry on
80 * the @q. This function will then ring the Work Queue Doorbell to signal the
81 * HBA to start processing the Work Queue Entry. This function returns 0 if
82 * successful. If no entries are available on @q then this function will return
84 * The caller is expected to hold the hbalock when calling this routine.
87 lpfc_sli4_wq_put(struct lpfc_queue
*q
, union lpfc_wqe
*wqe
)
89 union lpfc_wqe
*temp_wqe
= q
->qe
[q
->host_index
].wqe
;
90 struct lpfc_register doorbell
;
93 /* If the host has not yet processed the next entry then we are done */
94 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
96 /* set consumption flag every once in a while */
97 if (!((q
->host_index
+ 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL
))
98 bf_set(wqe_wqec
, &wqe
->generic
.wqe_com
, 1);
100 lpfc_sli_pcimem_bcopy(wqe
, temp_wqe
, q
->entry_size
);
102 /* Update the host index before invoking device */
103 host_index
= q
->host_index
;
104 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
108 bf_set(lpfc_wq_doorbell_num_posted
, &doorbell
, 1);
109 bf_set(lpfc_wq_doorbell_index
, &doorbell
, host_index
);
110 bf_set(lpfc_wq_doorbell_id
, &doorbell
, q
->queue_id
);
111 writel(doorbell
.word0
, q
->phba
->sli4_hba
.WQDBregaddr
);
112 readl(q
->phba
->sli4_hba
.WQDBregaddr
); /* Flush */
118 * lpfc_sli4_wq_release - Updates internal hba index for WQ
119 * @q: The Work Queue to operate on.
120 * @index: The index to advance the hba index to.
122 * This routine will update the HBA index of a queue to reflect consumption of
123 * Work Queue Entries by the HBA. When the HBA indicates that it has consumed
124 * an entry the host calls this function to update the queue's internal
125 * pointers. This routine returns the number of entries that were consumed by
129 lpfc_sli4_wq_release(struct lpfc_queue
*q
, uint32_t index
)
131 uint32_t released
= 0;
133 if (q
->hba_index
== index
)
136 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
138 } while (q
->hba_index
!= index
);
143 * lpfc_sli4_mq_put - Put a Mailbox Queue Entry on an Mailbox Queue
144 * @q: The Mailbox Queue to operate on.
145 * @wqe: The Mailbox Queue Entry to put on the Work queue.
147 * This routine will copy the contents of @mqe to the next available entry on
148 * the @q. This function will then ring the Work Queue Doorbell to signal the
149 * HBA to start processing the Work Queue Entry. This function returns 0 if
150 * successful. If no entries are available on @q then this function will return
152 * The caller is expected to hold the hbalock when calling this routine.
155 lpfc_sli4_mq_put(struct lpfc_queue
*q
, struct lpfc_mqe
*mqe
)
157 struct lpfc_mqe
*temp_mqe
= q
->qe
[q
->host_index
].mqe
;
158 struct lpfc_register doorbell
;
161 /* If the host has not yet processed the next entry then we are done */
162 if (((q
->host_index
+ 1) % q
->entry_count
) == q
->hba_index
)
164 lpfc_sli_pcimem_bcopy(mqe
, temp_mqe
, q
->entry_size
);
165 /* Save off the mailbox pointer for completion */
166 q
->phba
->mbox
= (MAILBOX_t
*)temp_mqe
;
168 /* Update the host index before invoking device */
169 host_index
= q
->host_index
;
170 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
174 bf_set(lpfc_mq_doorbell_num_posted
, &doorbell
, 1);
175 bf_set(lpfc_mq_doorbell_id
, &doorbell
, q
->queue_id
);
176 writel(doorbell
.word0
, q
->phba
->sli4_hba
.MQDBregaddr
);
177 readl(q
->phba
->sli4_hba
.MQDBregaddr
); /* Flush */
182 * lpfc_sli4_mq_release - Updates internal hba index for MQ
183 * @q: The Mailbox Queue to operate on.
185 * This routine will update the HBA index of a queue to reflect consumption of
186 * a Mailbox Queue Entry by the HBA. When the HBA indicates that it has consumed
187 * an entry the host calls this function to update the queue's internal
188 * pointers. This routine returns the number of entries that were consumed by
192 lpfc_sli4_mq_release(struct lpfc_queue
*q
)
194 /* Clear the mailbox pointer for completion */
195 q
->phba
->mbox
= NULL
;
196 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
201 * lpfc_sli4_eq_get - Gets the next valid EQE from a EQ
202 * @q: The Event Queue to get the first valid EQE from
204 * This routine will get the first valid Event Queue Entry from @q, update
205 * the queue's internal hba index, and return the EQE. If no valid EQEs are in
206 * the Queue (no more work to do), or the Queue is full of EQEs that have been
207 * processed, but not popped back to the HBA then this routine will return NULL.
209 static struct lpfc_eqe
*
210 lpfc_sli4_eq_get(struct lpfc_queue
*q
)
212 struct lpfc_eqe
*eqe
= q
->qe
[q
->hba_index
].eqe
;
214 /* If the next EQE is not valid then we are done */
215 if (!bf_get_le32(lpfc_eqe_valid
, eqe
))
217 /* If the host has not yet processed the next entry then we are done */
218 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
221 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
226 * lpfc_sli4_eq_release - Indicates the host has finished processing an EQ
227 * @q: The Event Queue that the host has completed processing for.
228 * @arm: Indicates whether the host wants to arms this CQ.
230 * This routine will mark all Event Queue Entries on @q, from the last
231 * known completed entry to the last entry that was processed, as completed
232 * by clearing the valid bit for each completion queue entry. Then it will
233 * notify the HBA, by ringing the doorbell, that the EQEs have been processed.
234 * The internal host index in the @q will be updated by this routine to indicate
235 * that the host has finished processing the entries. The @arm parameter
236 * indicates that the queue should be rearmed when ringing the doorbell.
238 * This function will return the number of EQEs that were popped.
241 lpfc_sli4_eq_release(struct lpfc_queue
*q
, bool arm
)
243 uint32_t released
= 0;
244 struct lpfc_eqe
*temp_eqe
;
245 struct lpfc_register doorbell
;
247 /* while there are valid entries */
248 while (q
->hba_index
!= q
->host_index
) {
249 temp_eqe
= q
->qe
[q
->host_index
].eqe
;
250 bf_set_le32(lpfc_eqe_valid
, temp_eqe
, 0);
252 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
254 if (unlikely(released
== 0 && !arm
))
257 /* ring doorbell for number popped */
260 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
261 bf_set(lpfc_eqcq_doorbell_eqci
, &doorbell
, 1);
263 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
264 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_EVENT
);
265 bf_set(lpfc_eqcq_doorbell_eqid
, &doorbell
, q
->queue_id
);
266 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
267 /* PCI read to flush PCI pipeline on re-arming for INTx mode */
268 if ((q
->phba
->intr_type
== INTx
) && (arm
== LPFC_QUEUE_REARM
))
269 readl(q
->phba
->sli4_hba
.EQCQDBregaddr
);
274 * lpfc_sli4_cq_get - Gets the next valid CQE from a CQ
275 * @q: The Completion Queue to get the first valid CQE from
277 * This routine will get the first valid Completion Queue Entry from @q, update
278 * the queue's internal hba index, and return the CQE. If no valid CQEs are in
279 * the Queue (no more work to do), or the Queue is full of CQEs that have been
280 * processed, but not popped back to the HBA then this routine will return NULL.
282 static struct lpfc_cqe
*
283 lpfc_sli4_cq_get(struct lpfc_queue
*q
)
285 struct lpfc_cqe
*cqe
;
287 /* If the next CQE is not valid then we are done */
288 if (!bf_get_le32(lpfc_cqe_valid
, q
->qe
[q
->hba_index
].cqe
))
290 /* If the host has not yet processed the next entry then we are done */
291 if (((q
->hba_index
+ 1) % q
->entry_count
) == q
->host_index
)
294 cqe
= q
->qe
[q
->hba_index
].cqe
;
295 q
->hba_index
= ((q
->hba_index
+ 1) % q
->entry_count
);
300 * lpfc_sli4_cq_release - Indicates the host has finished processing a CQ
301 * @q: The Completion Queue that the host has completed processing for.
302 * @arm: Indicates whether the host wants to arms this CQ.
304 * This routine will mark all Completion queue entries on @q, from the last
305 * known completed entry to the last entry that was processed, as completed
306 * by clearing the valid bit for each completion queue entry. Then it will
307 * notify the HBA, by ringing the doorbell, that the CQEs have been processed.
308 * The internal host index in the @q will be updated by this routine to indicate
309 * that the host has finished processing the entries. The @arm parameter
310 * indicates that the queue should be rearmed when ringing the doorbell.
312 * This function will return the number of CQEs that were released.
315 lpfc_sli4_cq_release(struct lpfc_queue
*q
, bool arm
)
317 uint32_t released
= 0;
318 struct lpfc_cqe
*temp_qe
;
319 struct lpfc_register doorbell
;
321 /* while there are valid entries */
322 while (q
->hba_index
!= q
->host_index
) {
323 temp_qe
= q
->qe
[q
->host_index
].cqe
;
324 bf_set_le32(lpfc_cqe_valid
, temp_qe
, 0);
326 q
->host_index
= ((q
->host_index
+ 1) % q
->entry_count
);
328 if (unlikely(released
== 0 && !arm
))
331 /* ring doorbell for number popped */
334 bf_set(lpfc_eqcq_doorbell_arm
, &doorbell
, 1);
335 bf_set(lpfc_eqcq_doorbell_num_released
, &doorbell
, released
);
336 bf_set(lpfc_eqcq_doorbell_qt
, &doorbell
, LPFC_QUEUE_TYPE_COMPLETION
);
337 bf_set(lpfc_eqcq_doorbell_cqid
, &doorbell
, q
->queue_id
);
338 writel(doorbell
.word0
, q
->phba
->sli4_hba
.EQCQDBregaddr
);
343 * lpfc_sli4_rq_put - Put a Receive Buffer Queue Entry on a Receive Queue
344 * @q: The Header Receive Queue to operate on.
345 * @wqe: The Receive Queue Entry to put on the Receive queue.
347 * This routine will copy the contents of @wqe to the next available entry on
348 * the @q. This function will then ring the Receive Queue Doorbell to signal the
349 * HBA to start processing the Receive Queue Entry. This function returns the
350 * index that the rqe was copied to if successful. If no entries are available
351 * on @q then this function will return -ENOMEM.
352 * The caller is expected to hold the hbalock when calling this routine.
355 lpfc_sli4_rq_put(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
,
356 struct lpfc_rqe
*hrqe
, struct lpfc_rqe
*drqe
)
358 struct lpfc_rqe
*temp_hrqe
= hq
->qe
[hq
->host_index
].rqe
;
359 struct lpfc_rqe
*temp_drqe
= dq
->qe
[dq
->host_index
].rqe
;
360 struct lpfc_register doorbell
;
361 int put_index
= hq
->host_index
;
363 if (hq
->type
!= LPFC_HRQ
|| dq
->type
!= LPFC_DRQ
)
365 if (hq
->host_index
!= dq
->host_index
)
367 /* If the host has not yet processed the next entry then we are done */
368 if (((hq
->host_index
+ 1) % hq
->entry_count
) == hq
->hba_index
)
370 lpfc_sli_pcimem_bcopy(hrqe
, temp_hrqe
, hq
->entry_size
);
371 lpfc_sli_pcimem_bcopy(drqe
, temp_drqe
, dq
->entry_size
);
373 /* Update the host index to point to the next slot */
374 hq
->host_index
= ((hq
->host_index
+ 1) % hq
->entry_count
);
375 dq
->host_index
= ((dq
->host_index
+ 1) % dq
->entry_count
);
377 /* Ring The Header Receive Queue Doorbell */
378 if (!(hq
->host_index
% LPFC_RQ_POST_BATCH
)) {
380 bf_set(lpfc_rq_doorbell_num_posted
, &doorbell
,
382 bf_set(lpfc_rq_doorbell_id
, &doorbell
, hq
->queue_id
);
383 writel(doorbell
.word0
, hq
->phba
->sli4_hba
.RQDBregaddr
);
389 * lpfc_sli4_rq_release - Updates internal hba index for RQ
390 * @q: The Header Receive Queue to operate on.
392 * This routine will update the HBA index of a queue to reflect consumption of
393 * one Receive Queue Entry by the HBA. When the HBA indicates that it has
394 * consumed an entry the host calls this function to update the queue's
395 * internal pointers. This routine returns the number of entries that were
396 * consumed by the HBA.
399 lpfc_sli4_rq_release(struct lpfc_queue
*hq
, struct lpfc_queue
*dq
)
401 if ((hq
->type
!= LPFC_HRQ
) || (dq
->type
!= LPFC_DRQ
))
403 hq
->hba_index
= ((hq
->hba_index
+ 1) % hq
->entry_count
);
404 dq
->hba_index
= ((dq
->hba_index
+ 1) % dq
->entry_count
);
409 * lpfc_cmd_iocb - Get next command iocb entry in the ring
410 * @phba: Pointer to HBA context object.
411 * @pring: Pointer to driver SLI ring object.
413 * This function returns pointer to next command iocb entry
414 * in the command ring. The caller must hold hbalock to prevent
415 * other threads consume the next command iocb.
416 * SLI-2/SLI-3 provide different sized iocbs.
418 static inline IOCB_t
*
419 lpfc_cmd_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
421 return (IOCB_t
*) (((char *) pring
->cmdringaddr
) +
422 pring
->cmdidx
* phba
->iocb_cmd_size
);
426 * lpfc_resp_iocb - Get next response iocb entry in the ring
427 * @phba: Pointer to HBA context object.
428 * @pring: Pointer to driver SLI ring object.
430 * This function returns pointer to next response iocb entry
431 * in the response ring. The caller must hold hbalock to make sure
432 * that no other thread consume the next response iocb.
433 * SLI-2/SLI-3 provide different sized iocbs.
435 static inline IOCB_t
*
436 lpfc_resp_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
438 return (IOCB_t
*) (((char *) pring
->rspringaddr
) +
439 pring
->rspidx
* phba
->iocb_rsp_size
);
443 * __lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
444 * @phba: Pointer to HBA context object.
446 * This function is called with hbalock held. This function
447 * allocates a new driver iocb object from the iocb pool. If the
448 * allocation is successful, it returns pointer to the newly
449 * allocated iocb object else it returns NULL.
451 static struct lpfc_iocbq
*
452 __lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
454 struct list_head
*lpfc_iocb_list
= &phba
->lpfc_iocb_list
;
455 struct lpfc_iocbq
* iocbq
= NULL
;
457 list_remove_head(lpfc_iocb_list
, iocbq
, struct lpfc_iocbq
, list
);
461 if (phba
->iocb_cnt
> phba
->iocb_max
)
462 phba
->iocb_max
= phba
->iocb_cnt
;
467 * __lpfc_clear_active_sglq - Remove the active sglq for this XRI.
468 * @phba: Pointer to HBA context object.
469 * @xritag: XRI value.
471 * This function clears the sglq pointer from the array of acive
472 * sglq's. The xritag that is passed in is used to index into the
473 * array. Before the xritag can be used it needs to be adjusted
474 * by subtracting the xribase.
476 * Returns sglq ponter = success, NULL = Failure.
478 static struct lpfc_sglq
*
479 __lpfc_clear_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
482 struct lpfc_sglq
*sglq
;
483 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
484 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
486 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
487 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = NULL
;
492 * __lpfc_get_active_sglq - Get the active sglq for this XRI.
493 * @phba: Pointer to HBA context object.
494 * @xritag: XRI value.
496 * This function returns the sglq pointer from the array of acive
497 * sglq's. The xritag that is passed in is used to index into the
498 * array. Before the xritag can be used it needs to be adjusted
499 * by subtracting the xribase.
501 * Returns sglq ponter = success, NULL = Failure.
504 __lpfc_get_active_sglq(struct lpfc_hba
*phba
, uint16_t xritag
)
507 struct lpfc_sglq
*sglq
;
508 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
509 if (adj_xri
> phba
->sli4_hba
.max_cfg_param
.max_xri
)
511 sglq
= phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
];
516 * __lpfc_set_rrq_active - set RRQ active bit in the ndlp's xri_bitmap.
517 * @phba: Pointer to HBA context object.
518 * @ndlp: nodelist pointer for this target.
519 * @xritag: xri used in this exchange.
520 * @rxid: Remote Exchange ID.
521 * @send_rrq: Flag used to determine if we should send rrq els cmd.
523 * This function is called with hbalock held.
524 * The active bit is set in the ndlp's active rrq xri_bitmap. Allocates an
525 * rrq struct and adds it to the active_rrq_list.
527 * returns 0 for rrq slot for this xri
528 * < 0 Were not able to get rrq mem or invalid parameter.
531 __lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
532 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
535 struct lpfc_node_rrq
*rrq
;
539 * set the active bit even if there is no mem available.
541 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
544 if (test_and_set_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
))
546 rrq
= mempool_alloc(phba
->rrq_pool
, GFP_KERNEL
);
548 rrq
->send_rrq
= send_rrq
;
549 rrq
->xritag
= xritag
;
550 rrq
->rrq_stop_time
= jiffies
+ HZ
* (phba
->fc_ratov
+ 1);
552 rrq
->nlp_DID
= ndlp
->nlp_DID
;
553 rrq
->vport
= ndlp
->vport
;
555 empty
= list_empty(&phba
->active_rrq_list
);
556 if (phba
->cfg_enable_rrq
&& send_rrq
)
558 * We need the xri before we can add this to the
559 * phba active rrq list.
561 rrq
->send_rrq
= send_rrq
;
564 list_add_tail(&rrq
->list
, &phba
->active_rrq_list
);
565 if (!(phba
->hba_flag
& HBA_RRQ_ACTIVE
)) {
566 phba
->hba_flag
|= HBA_RRQ_ACTIVE
;
568 lpfc_worker_wake_up(phba
);
576 * __lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
577 * @phba: Pointer to HBA context object.
578 * @xritag: xri used in this exchange.
579 * @rrq: The RRQ to be cleared.
581 * This function is called with hbalock held. This function
584 __lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
586 struct lpfc_node_rrq
*rrq
)
589 struct lpfc_nodelist
*ndlp
;
591 ndlp
= lpfc_findnode_did(rrq
->vport
, rrq
->nlp_DID
);
593 /* The target DID could have been swapped (cable swap)
594 * we should use the ndlp from the findnode if it is
600 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
601 if (test_and_clear_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
)) {
604 rrq
->rrq_stop_time
= 0;
606 mempool_free(rrq
, phba
->rrq_pool
);
610 * lpfc_handle_rrq_active - Checks if RRQ has waithed RATOV.
611 * @phba: Pointer to HBA context object.
613 * This function is called with hbalock held. This function
614 * Checks if stop_time (ratov from setting rrq active) has
615 * been reached, if it has and the send_rrq flag is set then
616 * it will call lpfc_send_rrq. If the send_rrq flag is not set
617 * then it will just call the routine to clear the rrq and
618 * free the rrq resource.
619 * The timer is set to the next rrq that is going to expire before
620 * leaving the routine.
624 lpfc_handle_rrq_active(struct lpfc_hba
*phba
)
626 struct lpfc_node_rrq
*rrq
;
627 struct lpfc_node_rrq
*nextrrq
;
628 unsigned long next_time
;
629 unsigned long iflags
;
631 spin_lock_irqsave(&phba
->hbalock
, iflags
);
632 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
633 next_time
= jiffies
+ HZ
* (phba
->fc_ratov
+ 1);
634 list_for_each_entry_safe(rrq
, nextrrq
,
635 &phba
->active_rrq_list
, list
) {
636 if (time_after(jiffies
, rrq
->rrq_stop_time
)) {
637 list_del(&rrq
->list
);
639 /* this call will free the rrq */
640 __lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
642 /* if we send the rrq then the completion handler
643 * will clear the bit in the xribitmap.
645 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
646 if (lpfc_send_rrq(phba
, rrq
)) {
647 lpfc_clr_rrq_active(phba
, rrq
->xritag
,
650 spin_lock_irqsave(&phba
->hbalock
, iflags
);
652 } else if (time_before(rrq
->rrq_stop_time
, next_time
))
653 next_time
= rrq
->rrq_stop_time
;
655 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
656 if (!list_empty(&phba
->active_rrq_list
))
657 mod_timer(&phba
->rrq_tmr
, next_time
);
661 * lpfc_get_active_rrq - Get the active RRQ for this exchange.
662 * @vport: Pointer to vport context object.
663 * @xri: The xri used in the exchange.
664 * @did: The targets DID for this exchange.
666 * returns NULL = rrq not found in the phba->active_rrq_list.
667 * rrq = rrq for this xri and target.
669 struct lpfc_node_rrq
*
670 lpfc_get_active_rrq(struct lpfc_vport
*vport
, uint16_t xri
, uint32_t did
)
672 struct lpfc_hba
*phba
= vport
->phba
;
673 struct lpfc_node_rrq
*rrq
;
674 struct lpfc_node_rrq
*nextrrq
;
675 unsigned long iflags
;
677 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
679 spin_lock_irqsave(&phba
->hbalock
, iflags
);
680 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
681 if (rrq
->vport
== vport
&& rrq
->xritag
== xri
&&
682 rrq
->nlp_DID
== did
){
683 list_del(&rrq
->list
);
684 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
688 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
693 * lpfc_cleanup_vports_rrqs - Remove and clear the active RRQ for this vport.
694 * @vport: Pointer to vport context object.
696 * Remove all active RRQs for this vport from the phba->active_rrq_list and
700 lpfc_cleanup_vports_rrqs(struct lpfc_vport
*vport
)
703 struct lpfc_hba
*phba
= vport
->phba
;
704 struct lpfc_node_rrq
*rrq
;
705 struct lpfc_node_rrq
*nextrrq
;
706 unsigned long iflags
;
708 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
710 spin_lock_irqsave(&phba
->hbalock
, iflags
);
711 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
712 if (rrq
->vport
== vport
) {
713 list_del(&rrq
->list
);
714 __lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
717 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
721 * lpfc_cleanup_wt_rrqs - Remove all rrq's from the active list.
722 * @phba: Pointer to HBA context object.
724 * Remove all rrqs from the phba->active_rrq_list and free them by
725 * calling __lpfc_clr_active_rrq
729 lpfc_cleanup_wt_rrqs(struct lpfc_hba
*phba
)
731 struct lpfc_node_rrq
*rrq
;
732 struct lpfc_node_rrq
*nextrrq
;
733 unsigned long next_time
;
734 unsigned long iflags
;
736 if (phba
->sli_rev
!= LPFC_SLI_REV4
)
738 spin_lock_irqsave(&phba
->hbalock
, iflags
);
739 phba
->hba_flag
&= ~HBA_RRQ_ACTIVE
;
740 next_time
= jiffies
+ HZ
* (phba
->fc_ratov
* 2);
741 list_for_each_entry_safe(rrq
, nextrrq
, &phba
->active_rrq_list
, list
) {
742 list_del(&rrq
->list
);
743 __lpfc_clr_rrq_active(phba
, rrq
->xritag
, rrq
);
745 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
746 if (!list_empty(&phba
->active_rrq_list
))
747 mod_timer(&phba
->rrq_tmr
, next_time
);
752 * __lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
753 * @phba: Pointer to HBA context object.
754 * @ndlp: Targets nodelist pointer for this exchange.
755 * @xritag the xri in the bitmap to test.
757 * This function is called with hbalock held. This function
758 * returns 0 = rrq not active for this xri
759 * 1 = rrq is valid for this xri.
762 __lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
767 adj_xri
= xritag
- phba
->sli4_hba
.max_cfg_param
.xri_base
;
770 if (test_bit(adj_xri
, ndlp
->active_rrqs
.xri_bitmap
))
777 * lpfc_set_rrq_active - set RRQ active bit in xri_bitmap.
778 * @phba: Pointer to HBA context object.
779 * @ndlp: nodelist pointer for this target.
780 * @xritag: xri used in this exchange.
781 * @rxid: Remote Exchange ID.
782 * @send_rrq: Flag used to determine if we should send rrq els cmd.
784 * This function takes the hbalock.
785 * The active bit is always set in the active rrq xri_bitmap even
786 * if there is no slot avaiable for the other rrq information.
788 * returns 0 rrq actived for this xri
789 * < 0 No memory or invalid ndlp.
792 lpfc_set_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
793 uint16_t xritag
, uint16_t rxid
, uint16_t send_rrq
)
796 unsigned long iflags
;
798 spin_lock_irqsave(&phba
->hbalock
, iflags
);
799 ret
= __lpfc_set_rrq_active(phba
, ndlp
, xritag
, rxid
, send_rrq
);
800 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
805 * lpfc_clr_rrq_active - Clears RRQ active bit in xri_bitmap.
806 * @phba: Pointer to HBA context object.
807 * @xritag: xri used in this exchange.
808 * @rrq: The RRQ to be cleared.
810 * This function is takes the hbalock.
813 lpfc_clr_rrq_active(struct lpfc_hba
*phba
,
815 struct lpfc_node_rrq
*rrq
)
817 unsigned long iflags
;
819 spin_lock_irqsave(&phba
->hbalock
, iflags
);
820 __lpfc_clr_rrq_active(phba
, xritag
, rrq
);
821 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
828 * lpfc_test_rrq_active - Test RRQ bit in xri_bitmap.
829 * @phba: Pointer to HBA context object.
830 * @ndlp: Targets nodelist pointer for this exchange.
831 * @xritag the xri in the bitmap to test.
833 * This function takes the hbalock.
834 * returns 0 = rrq not active for this xri
835 * 1 = rrq is valid for this xri.
838 lpfc_test_rrq_active(struct lpfc_hba
*phba
, struct lpfc_nodelist
*ndlp
,
842 unsigned long iflags
;
844 spin_lock_irqsave(&phba
->hbalock
, iflags
);
845 ret
= __lpfc_test_rrq_active(phba
, ndlp
, xritag
);
846 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
851 * __lpfc_sli_get_sglq - Allocates an iocb object from sgl pool
852 * @phba: Pointer to HBA context object.
853 * @piocb: Pointer to the iocbq.
855 * This function is called with hbalock held. This function
856 * Gets a new driver sglq object from the sglq list. If the
857 * list is not empty then it is successful, it returns pointer to the newly
858 * allocated sglq object else it returns NULL.
860 static struct lpfc_sglq
*
861 __lpfc_sli_get_sglq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
)
863 struct list_head
*lpfc_sgl_list
= &phba
->sli4_hba
.lpfc_sgl_list
;
864 struct lpfc_sglq
*sglq
= NULL
;
865 struct lpfc_sglq
*start_sglq
= NULL
;
867 struct lpfc_scsi_buf
*lpfc_cmd
;
868 struct lpfc_nodelist
*ndlp
;
871 if (piocbq
->iocb_flag
& LPFC_IO_FCP
) {
872 lpfc_cmd
= (struct lpfc_scsi_buf
*) piocbq
->context1
;
873 ndlp
= lpfc_cmd
->rdata
->pnode
;
874 } else if ((piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) &&
875 !(piocbq
->iocb_flag
& LPFC_IO_LIBDFC
))
876 ndlp
= piocbq
->context_un
.ndlp
;
878 ndlp
= piocbq
->context1
;
880 list_remove_head(lpfc_sgl_list
, sglq
, struct lpfc_sglq
, list
);
885 adj_xri
= sglq
->sli4_xritag
-
886 phba
->sli4_hba
.max_cfg_param
.xri_base
;
887 if (__lpfc_test_rrq_active(phba
, ndlp
, sglq
->sli4_xritag
)) {
888 /* This xri has an rrq outstanding for this DID.
889 * put it back in the list and get another xri.
891 list_add_tail(&sglq
->list
, lpfc_sgl_list
);
893 list_remove_head(lpfc_sgl_list
, sglq
,
894 struct lpfc_sglq
, list
);
895 if (sglq
== start_sglq
) {
903 phba
->sli4_hba
.lpfc_sglq_active_list
[adj_xri
] = sglq
;
904 sglq
->state
= SGL_ALLOCATED
;
910 * lpfc_sli_get_iocbq - Allocates an iocb object from iocb pool
911 * @phba: Pointer to HBA context object.
913 * This function is called with no lock held. This function
914 * allocates a new driver iocb object from the iocb pool. If the
915 * allocation is successful, it returns pointer to the newly
916 * allocated iocb object else it returns NULL.
919 lpfc_sli_get_iocbq(struct lpfc_hba
*phba
)
921 struct lpfc_iocbq
* iocbq
= NULL
;
922 unsigned long iflags
;
924 spin_lock_irqsave(&phba
->hbalock
, iflags
);
925 iocbq
= __lpfc_sli_get_iocbq(phba
);
926 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
931 * __lpfc_sli_release_iocbq_s4 - Release iocb to the iocb pool
932 * @phba: Pointer to HBA context object.
933 * @iocbq: Pointer to driver iocb object.
935 * This function is called with hbalock held to release driver
936 * iocb object to the iocb pool. The iotag in the iocb object
937 * does not change for each use of the iocb object. This function
938 * clears all other fields of the iocb object when it is freed.
939 * The sqlq structure that holds the xritag and phys and virtual
940 * mappings for the scatter gather list is retrieved from the
941 * active array of sglq. The get of the sglq pointer also clears
942 * the entry in the array. If the status of the IO indiactes that
943 * this IO was aborted then the sglq entry it put on the
944 * lpfc_abts_els_sgl_list until the CQ_ABORTED_XRI is received. If the
945 * IO has good status or fails for any other reason then the sglq
946 * entry is added to the free list (lpfc_sgl_list).
949 __lpfc_sli_release_iocbq_s4(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
951 struct lpfc_sglq
*sglq
;
952 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
953 unsigned long iflag
= 0;
954 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
956 if (iocbq
->sli4_xritag
== NO_XRI
)
959 sglq
= __lpfc_clear_active_sglq(phba
, iocbq
->sli4_xritag
);
961 if ((iocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
) &&
962 (sglq
->state
!= SGL_XRI_ABORTED
)) {
963 spin_lock_irqsave(&phba
->sli4_hba
.abts_sgl_list_lock
,
965 list_add(&sglq
->list
,
966 &phba
->sli4_hba
.lpfc_abts_els_sgl_list
);
967 spin_unlock_irqrestore(
968 &phba
->sli4_hba
.abts_sgl_list_lock
, iflag
);
970 sglq
->state
= SGL_FREED
;
972 list_add(&sglq
->list
, &phba
->sli4_hba
.lpfc_sgl_list
);
974 /* Check if TXQ queue needs to be serviced */
976 lpfc_worker_wake_up(phba
);
982 * Clean all volatile data fields, preserve iotag and node struct.
984 memset((char *)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
985 iocbq
->sli4_xritag
= NO_XRI
;
986 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
991 * __lpfc_sli_release_iocbq_s3 - Release iocb to the iocb pool
992 * @phba: Pointer to HBA context object.
993 * @iocbq: Pointer to driver iocb object.
995 * This function is called with hbalock held to release driver
996 * iocb object to the iocb pool. The iotag in the iocb object
997 * does not change for each use of the iocb object. This function
998 * clears all other fields of the iocb object when it is freed.
1001 __lpfc_sli_release_iocbq_s3(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1003 size_t start_clean
= offsetof(struct lpfc_iocbq
, iocb
);
1006 * Clean all volatile data fields, preserve iotag and node struct.
1008 memset((char*)iocbq
+ start_clean
, 0, sizeof(*iocbq
) - start_clean
);
1009 iocbq
->sli4_xritag
= NO_XRI
;
1010 list_add_tail(&iocbq
->list
, &phba
->lpfc_iocb_list
);
1014 * __lpfc_sli_release_iocbq - Release iocb to the iocb pool
1015 * @phba: Pointer to HBA context object.
1016 * @iocbq: Pointer to driver iocb object.
1018 * This function is called with hbalock held to release driver
1019 * iocb object to the iocb pool. The iotag in the iocb object
1020 * does not change for each use of the iocb object. This function
1021 * clears all other fields of the iocb object when it is freed.
1024 __lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1026 phba
->__lpfc_sli_release_iocbq(phba
, iocbq
);
1031 * lpfc_sli_release_iocbq - Release iocb to the iocb pool
1032 * @phba: Pointer to HBA context object.
1033 * @iocbq: Pointer to driver iocb object.
1035 * This function is called with no lock held to release the iocb to
1039 lpfc_sli_release_iocbq(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1041 unsigned long iflags
;
1044 * Clean all volatile data fields, preserve iotag and node struct.
1046 spin_lock_irqsave(&phba
->hbalock
, iflags
);
1047 __lpfc_sli_release_iocbq(phba
, iocbq
);
1048 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
1052 * lpfc_sli_cancel_iocbs - Cancel all iocbs from a list.
1053 * @phba: Pointer to HBA context object.
1054 * @iocblist: List of IOCBs.
1055 * @ulpstatus: ULP status in IOCB command field.
1056 * @ulpWord4: ULP word-4 in IOCB command field.
1058 * This function is called with a list of IOCBs to cancel. It cancels the IOCB
1059 * on the list by invoking the complete callback function associated with the
1060 * IOCB with the provided @ulpstatus and @ulpword4 set to the IOCB commond
1064 lpfc_sli_cancel_iocbs(struct lpfc_hba
*phba
, struct list_head
*iocblist
,
1065 uint32_t ulpstatus
, uint32_t ulpWord4
)
1067 struct lpfc_iocbq
*piocb
;
1069 while (!list_empty(iocblist
)) {
1070 list_remove_head(iocblist
, piocb
, struct lpfc_iocbq
, list
);
1072 if (!piocb
->iocb_cmpl
)
1073 lpfc_sli_release_iocbq(phba
, piocb
);
1075 piocb
->iocb
.ulpStatus
= ulpstatus
;
1076 piocb
->iocb
.un
.ulpWord
[4] = ulpWord4
;
1077 (piocb
->iocb_cmpl
) (phba
, piocb
, piocb
);
1084 * lpfc_sli_iocb_cmd_type - Get the iocb type
1085 * @iocb_cmnd: iocb command code.
1087 * This function is called by ring event handler function to get the iocb type.
1088 * This function translates the iocb command to an iocb command type used to
1089 * decide the final disposition of each completed IOCB.
1090 * The function returns
1091 * LPFC_UNKNOWN_IOCB if it is an unsupported iocb
1092 * LPFC_SOL_IOCB if it is a solicited iocb completion
1093 * LPFC_ABORT_IOCB if it is an abort iocb
1094 * LPFC_UNSOL_IOCB if it is an unsolicited iocb
1096 * The caller is not required to hold any lock.
1098 static lpfc_iocb_type
1099 lpfc_sli_iocb_cmd_type(uint8_t iocb_cmnd
)
1101 lpfc_iocb_type type
= LPFC_UNKNOWN_IOCB
;
1103 if (iocb_cmnd
> CMD_MAX_IOCB_CMD
)
1106 switch (iocb_cmnd
) {
1107 case CMD_XMIT_SEQUENCE_CR
:
1108 case CMD_XMIT_SEQUENCE_CX
:
1109 case CMD_XMIT_BCAST_CN
:
1110 case CMD_XMIT_BCAST_CX
:
1111 case CMD_ELS_REQUEST_CR
:
1112 case CMD_ELS_REQUEST_CX
:
1113 case CMD_CREATE_XRI_CR
:
1114 case CMD_CREATE_XRI_CX
:
1115 case CMD_GET_RPI_CN
:
1116 case CMD_XMIT_ELS_RSP_CX
:
1117 case CMD_GET_RPI_CR
:
1118 case CMD_FCP_IWRITE_CR
:
1119 case CMD_FCP_IWRITE_CX
:
1120 case CMD_FCP_IREAD_CR
:
1121 case CMD_FCP_IREAD_CX
:
1122 case CMD_FCP_ICMND_CR
:
1123 case CMD_FCP_ICMND_CX
:
1124 case CMD_FCP_TSEND_CX
:
1125 case CMD_FCP_TRSP_CX
:
1126 case CMD_FCP_TRECEIVE_CX
:
1127 case CMD_FCP_AUTO_TRSP_CX
:
1128 case CMD_ADAPTER_MSG
:
1129 case CMD_ADAPTER_DUMP
:
1130 case CMD_XMIT_SEQUENCE64_CR
:
1131 case CMD_XMIT_SEQUENCE64_CX
:
1132 case CMD_XMIT_BCAST64_CN
:
1133 case CMD_XMIT_BCAST64_CX
:
1134 case CMD_ELS_REQUEST64_CR
:
1135 case CMD_ELS_REQUEST64_CX
:
1136 case CMD_FCP_IWRITE64_CR
:
1137 case CMD_FCP_IWRITE64_CX
:
1138 case CMD_FCP_IREAD64_CR
:
1139 case CMD_FCP_IREAD64_CX
:
1140 case CMD_FCP_ICMND64_CR
:
1141 case CMD_FCP_ICMND64_CX
:
1142 case CMD_FCP_TSEND64_CX
:
1143 case CMD_FCP_TRSP64_CX
:
1144 case CMD_FCP_TRECEIVE64_CX
:
1145 case CMD_GEN_REQUEST64_CR
:
1146 case CMD_GEN_REQUEST64_CX
:
1147 case CMD_XMIT_ELS_RSP64_CX
:
1148 case DSSCMD_IWRITE64_CR
:
1149 case DSSCMD_IWRITE64_CX
:
1150 case DSSCMD_IREAD64_CR
:
1151 case DSSCMD_IREAD64_CX
:
1152 type
= LPFC_SOL_IOCB
;
1154 case CMD_ABORT_XRI_CN
:
1155 case CMD_ABORT_XRI_CX
:
1156 case CMD_CLOSE_XRI_CN
:
1157 case CMD_CLOSE_XRI_CX
:
1158 case CMD_XRI_ABORTED_CX
:
1159 case CMD_ABORT_MXRI64_CN
:
1160 case CMD_XMIT_BLS_RSP64_CX
:
1161 type
= LPFC_ABORT_IOCB
;
1163 case CMD_RCV_SEQUENCE_CX
:
1164 case CMD_RCV_ELS_REQ_CX
:
1165 case CMD_RCV_SEQUENCE64_CX
:
1166 case CMD_RCV_ELS_REQ64_CX
:
1167 case CMD_ASYNC_STATUS
:
1168 case CMD_IOCB_RCV_SEQ64_CX
:
1169 case CMD_IOCB_RCV_ELS64_CX
:
1170 case CMD_IOCB_RCV_CONT64_CX
:
1171 case CMD_IOCB_RET_XRI64_CX
:
1172 type
= LPFC_UNSOL_IOCB
;
1174 case CMD_IOCB_XMIT_MSEQ64_CR
:
1175 case CMD_IOCB_XMIT_MSEQ64_CX
:
1176 case CMD_IOCB_RCV_SEQ_LIST64_CX
:
1177 case CMD_IOCB_RCV_ELS_LIST64_CX
:
1178 case CMD_IOCB_CLOSE_EXTENDED_CN
:
1179 case CMD_IOCB_ABORT_EXTENDED_CN
:
1180 case CMD_IOCB_RET_HBQE64_CN
:
1181 case CMD_IOCB_FCP_IBIDIR64_CR
:
1182 case CMD_IOCB_FCP_IBIDIR64_CX
:
1183 case CMD_IOCB_FCP_ITASKMGT64_CX
:
1184 case CMD_IOCB_LOGENTRY_CN
:
1185 case CMD_IOCB_LOGENTRY_ASYNC_CN
:
1186 printk("%s - Unhandled SLI-3 Command x%x\n",
1187 __func__
, iocb_cmnd
);
1188 type
= LPFC_UNKNOWN_IOCB
;
1191 type
= LPFC_UNKNOWN_IOCB
;
1199 * lpfc_sli_ring_map - Issue config_ring mbox for all rings
1200 * @phba: Pointer to HBA context object.
1202 * This function is called from SLI initialization code
1203 * to configure every ring of the HBA's SLI interface. The
1204 * caller is not required to hold any lock. This function issues
1205 * a config_ring mailbox command for each ring.
1206 * This function returns zero if successful else returns a negative
1210 lpfc_sli_ring_map(struct lpfc_hba
*phba
)
1212 struct lpfc_sli
*psli
= &phba
->sli
;
1217 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
1221 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
1222 for (i
= 0; i
< psli
->num_rings
; i
++) {
1223 lpfc_config_ring(phba
, i
, pmb
);
1224 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
1225 if (rc
!= MBX_SUCCESS
) {
1226 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
1227 "0446 Adapter failed to init (%d), "
1228 "mbxCmd x%x CFG_RING, mbxStatus x%x, "
1230 rc
, pmbox
->mbxCommand
,
1231 pmbox
->mbxStatus
, i
);
1232 phba
->link_state
= LPFC_HBA_ERROR
;
1237 mempool_free(pmb
, phba
->mbox_mem_pool
);
1242 * lpfc_sli_ringtxcmpl_put - Adds new iocb to the txcmplq
1243 * @phba: Pointer to HBA context object.
1244 * @pring: Pointer to driver SLI ring object.
1245 * @piocb: Pointer to the driver iocb object.
1247 * This function is called with hbalock held. The function adds the
1248 * new iocb to txcmplq of the given ring. This function always returns
1249 * 0. If this function is called for ELS ring, this function checks if
1250 * there is a vport associated with the ELS command. This function also
1251 * starts els_tmofunc timer if this is an ELS command.
1254 lpfc_sli_ringtxcmpl_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1255 struct lpfc_iocbq
*piocb
)
1257 list_add_tail(&piocb
->list
, &pring
->txcmplq
);
1258 piocb
->iocb_flag
|= LPFC_IO_ON_Q
;
1259 pring
->txcmplq_cnt
++;
1260 if (pring
->txcmplq_cnt
> pring
->txcmplq_max
)
1261 pring
->txcmplq_max
= pring
->txcmplq_cnt
;
1263 if ((unlikely(pring
->ringno
== LPFC_ELS_RING
)) &&
1264 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
1265 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
1269 mod_timer(&piocb
->vport
->els_tmofunc
,
1270 jiffies
+ HZ
* (phba
->fc_ratov
<< 1));
1278 * lpfc_sli_ringtx_get - Get first element of the txq
1279 * @phba: Pointer to HBA context object.
1280 * @pring: Pointer to driver SLI ring object.
1282 * This function is called with hbalock held to get next
1283 * iocb in txq of the given ring. If there is any iocb in
1284 * the txq, the function returns first iocb in the list after
1285 * removing the iocb from the list, else it returns NULL.
1288 lpfc_sli_ringtx_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1290 struct lpfc_iocbq
*cmd_iocb
;
1292 list_remove_head((&pring
->txq
), cmd_iocb
, struct lpfc_iocbq
, list
);
1293 if (cmd_iocb
!= NULL
)
1299 * lpfc_sli_next_iocb_slot - Get next iocb slot in the ring
1300 * @phba: Pointer to HBA context object.
1301 * @pring: Pointer to driver SLI ring object.
1303 * This function is called with hbalock held and the caller must post the
1304 * iocb without releasing the lock. If the caller releases the lock,
1305 * iocb slot returned by the function is not guaranteed to be available.
1306 * The function returns pointer to the next available iocb slot if there
1307 * is available slot in the ring, else it returns NULL.
1308 * If the get index of the ring is ahead of the put index, the function
1309 * will post an error attention event to the worker thread to take the
1310 * HBA to offline state.
1313 lpfc_sli_next_iocb_slot (struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1315 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
1316 uint32_t max_cmd_idx
= pring
->numCiocb
;
1317 if ((pring
->next_cmdidx
== pring
->cmdidx
) &&
1318 (++pring
->next_cmdidx
>= max_cmd_idx
))
1319 pring
->next_cmdidx
= 0;
1321 if (unlikely(pring
->local_getidx
== pring
->next_cmdidx
)) {
1323 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
1325 if (unlikely(pring
->local_getidx
>= max_cmd_idx
)) {
1326 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
1327 "0315 Ring %d issue: portCmdGet %d "
1328 "is bigger than cmd ring %d\n",
1330 pring
->local_getidx
, max_cmd_idx
);
1332 phba
->link_state
= LPFC_HBA_ERROR
;
1334 * All error attention handlers are posted to
1337 phba
->work_ha
|= HA_ERATT
;
1338 phba
->work_hs
= HS_FFER3
;
1340 lpfc_worker_wake_up(phba
);
1345 if (pring
->local_getidx
== pring
->next_cmdidx
)
1349 return lpfc_cmd_iocb(phba
, pring
);
1353 * lpfc_sli_next_iotag - Get an iotag for the iocb
1354 * @phba: Pointer to HBA context object.
1355 * @iocbq: Pointer to driver iocb object.
1357 * This function gets an iotag for the iocb. If there is no unused iotag and
1358 * the iocbq_lookup_len < 0xffff, this function allocates a bigger iotag_lookup
1359 * array and assigns a new iotag.
1360 * The function returns the allocated iotag if successful, else returns zero.
1361 * Zero is not a valid iotag.
1362 * The caller is not required to hold any lock.
1365 lpfc_sli_next_iotag(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
)
1367 struct lpfc_iocbq
**new_arr
;
1368 struct lpfc_iocbq
**old_arr
;
1370 struct lpfc_sli
*psli
= &phba
->sli
;
1373 spin_lock_irq(&phba
->hbalock
);
1374 iotag
= psli
->last_iotag
;
1375 if(++iotag
< psli
->iocbq_lookup_len
) {
1376 psli
->last_iotag
= iotag
;
1377 psli
->iocbq_lookup
[iotag
] = iocbq
;
1378 spin_unlock_irq(&phba
->hbalock
);
1379 iocbq
->iotag
= iotag
;
1381 } else if (psli
->iocbq_lookup_len
< (0xffff
1382 - LPFC_IOCBQ_LOOKUP_INCREMENT
)) {
1383 new_len
= psli
->iocbq_lookup_len
+ LPFC_IOCBQ_LOOKUP_INCREMENT
;
1384 spin_unlock_irq(&phba
->hbalock
);
1385 new_arr
= kzalloc(new_len
* sizeof (struct lpfc_iocbq
*),
1388 spin_lock_irq(&phba
->hbalock
);
1389 old_arr
= psli
->iocbq_lookup
;
1390 if (new_len
<= psli
->iocbq_lookup_len
) {
1391 /* highly unprobable case */
1393 iotag
= psli
->last_iotag
;
1394 if(++iotag
< psli
->iocbq_lookup_len
) {
1395 psli
->last_iotag
= iotag
;
1396 psli
->iocbq_lookup
[iotag
] = iocbq
;
1397 spin_unlock_irq(&phba
->hbalock
);
1398 iocbq
->iotag
= iotag
;
1401 spin_unlock_irq(&phba
->hbalock
);
1404 if (psli
->iocbq_lookup
)
1405 memcpy(new_arr
, old_arr
,
1406 ((psli
->last_iotag
+ 1) *
1407 sizeof (struct lpfc_iocbq
*)));
1408 psli
->iocbq_lookup
= new_arr
;
1409 psli
->iocbq_lookup_len
= new_len
;
1410 psli
->last_iotag
= iotag
;
1411 psli
->iocbq_lookup
[iotag
] = iocbq
;
1412 spin_unlock_irq(&phba
->hbalock
);
1413 iocbq
->iotag
= iotag
;
1418 spin_unlock_irq(&phba
->hbalock
);
1420 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
1421 "0318 Failed to allocate IOTAG.last IOTAG is %d\n",
1428 * lpfc_sli_submit_iocb - Submit an iocb to the firmware
1429 * @phba: Pointer to HBA context object.
1430 * @pring: Pointer to driver SLI ring object.
1431 * @iocb: Pointer to iocb slot in the ring.
1432 * @nextiocb: Pointer to driver iocb object which need to be
1433 * posted to firmware.
1435 * This function is called with hbalock held to post a new iocb to
1436 * the firmware. This function copies the new iocb to ring iocb slot and
1437 * updates the ring pointers. It adds the new iocb to txcmplq if there is
1438 * a completion call back for this iocb else the function will free the
1442 lpfc_sli_submit_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
1443 IOCB_t
*iocb
, struct lpfc_iocbq
*nextiocb
)
1448 nextiocb
->iocb
.ulpIoTag
= (nextiocb
->iocb_cmpl
) ? nextiocb
->iotag
: 0;
1451 if (pring
->ringno
== LPFC_ELS_RING
) {
1452 lpfc_debugfs_slow_ring_trc(phba
,
1453 "IOCB cmd ring: wd4:x%08x wd6:x%08x wd7:x%08x",
1454 *(((uint32_t *) &nextiocb
->iocb
) + 4),
1455 *(((uint32_t *) &nextiocb
->iocb
) + 6),
1456 *(((uint32_t *) &nextiocb
->iocb
) + 7));
1460 * Issue iocb command to adapter
1462 lpfc_sli_pcimem_bcopy(&nextiocb
->iocb
, iocb
, phba
->iocb_cmd_size
);
1464 pring
->stats
.iocb_cmd
++;
1467 * If there is no completion routine to call, we can release the
1468 * IOCB buffer back right now. For IOCBs, like QUE_RING_BUF,
1469 * that have no rsp ring completion, iocb_cmpl MUST be NULL.
1471 if (nextiocb
->iocb_cmpl
)
1472 lpfc_sli_ringtxcmpl_put(phba
, pring
, nextiocb
);
1474 __lpfc_sli_release_iocbq(phba
, nextiocb
);
1477 * Let the HBA know what IOCB slot will be the next one the
1478 * driver will put a command into.
1480 pring
->cmdidx
= pring
->next_cmdidx
;
1481 writel(pring
->cmdidx
, &phba
->host_gp
[pring
->ringno
].cmdPutInx
);
1485 * lpfc_sli_update_full_ring - Update the chip attention register
1486 * @phba: Pointer to HBA context object.
1487 * @pring: Pointer to driver SLI ring object.
1489 * The caller is not required to hold any lock for calling this function.
1490 * This function updates the chip attention bits for the ring to inform firmware
1491 * that there are pending work to be done for this ring and requests an
1492 * interrupt when there is space available in the ring. This function is
1493 * called when the driver is unable to post more iocbs to the ring due
1494 * to unavailability of space in the ring.
1497 lpfc_sli_update_full_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1499 int ringno
= pring
->ringno
;
1501 pring
->flag
|= LPFC_CALL_RING_AVAILABLE
;
1506 * Set ring 'ringno' to SET R0CE_REQ in Chip Att register.
1507 * The HBA will tell us when an IOCB entry is available.
1509 writel((CA_R0ATT
|CA_R0CE_REQ
) << (ringno
*4), phba
->CAregaddr
);
1510 readl(phba
->CAregaddr
); /* flush */
1512 pring
->stats
.iocb_cmd_full
++;
1516 * lpfc_sli_update_ring - Update chip attention register
1517 * @phba: Pointer to HBA context object.
1518 * @pring: Pointer to driver SLI ring object.
1520 * This function updates the chip attention register bit for the
1521 * given ring to inform HBA that there is more work to be done
1522 * in this ring. The caller is not required to hold any lock.
1525 lpfc_sli_update_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1527 int ringno
= pring
->ringno
;
1530 * Tell the HBA that there is work to do in this ring.
1532 if (!(phba
->sli3_options
& LPFC_SLI3_CRP_ENABLED
)) {
1534 writel(CA_R0ATT
<< (ringno
* 4), phba
->CAregaddr
);
1535 readl(phba
->CAregaddr
); /* flush */
1540 * lpfc_sli_resume_iocb - Process iocbs in the txq
1541 * @phba: Pointer to HBA context object.
1542 * @pring: Pointer to driver SLI ring object.
1544 * This function is called with hbalock held to post pending iocbs
1545 * in the txq to the firmware. This function is called when driver
1546 * detects space available in the ring.
1549 lpfc_sli_resume_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
1552 struct lpfc_iocbq
*nextiocb
;
1556 * (a) there is anything on the txq to send
1558 * (c) link attention events can be processed (fcp ring only)
1559 * (d) IOCB processing is not blocked by the outstanding mbox command.
1561 if (pring
->txq_cnt
&&
1562 lpfc_is_link_up(phba
) &&
1563 (pring
->ringno
!= phba
->sli
.fcp_ring
||
1564 phba
->sli
.sli_flag
& LPFC_PROCESS_LA
)) {
1566 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
1567 (nextiocb
= lpfc_sli_ringtx_get(phba
, pring
)))
1568 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
1571 lpfc_sli_update_ring(phba
, pring
);
1573 lpfc_sli_update_full_ring(phba
, pring
);
1580 * lpfc_sli_next_hbq_slot - Get next hbq entry for the HBQ
1581 * @phba: Pointer to HBA context object.
1582 * @hbqno: HBQ number.
1584 * This function is called with hbalock held to get the next
1585 * available slot for the given HBQ. If there is free slot
1586 * available for the HBQ it will return pointer to the next available
1587 * HBQ entry else it will return NULL.
1589 static struct lpfc_hbq_entry
*
1590 lpfc_sli_next_hbq_slot(struct lpfc_hba
*phba
, uint32_t hbqno
)
1592 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1594 if (hbqp
->next_hbqPutIdx
== hbqp
->hbqPutIdx
&&
1595 ++hbqp
->next_hbqPutIdx
>= hbqp
->entry_count
)
1596 hbqp
->next_hbqPutIdx
= 0;
1598 if (unlikely(hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)) {
1599 uint32_t raw_index
= phba
->hbq_get
[hbqno
];
1600 uint32_t getidx
= le32_to_cpu(raw_index
);
1602 hbqp
->local_hbqGetIdx
= getidx
;
1604 if (unlikely(hbqp
->local_hbqGetIdx
>= hbqp
->entry_count
)) {
1605 lpfc_printf_log(phba
, KERN_ERR
,
1606 LOG_SLI
| LOG_VPORT
,
1607 "1802 HBQ %d: local_hbqGetIdx "
1608 "%u is > than hbqp->entry_count %u\n",
1609 hbqno
, hbqp
->local_hbqGetIdx
,
1612 phba
->link_state
= LPFC_HBA_ERROR
;
1616 if (hbqp
->local_hbqGetIdx
== hbqp
->next_hbqPutIdx
)
1620 return (struct lpfc_hbq_entry
*) phba
->hbqs
[hbqno
].hbq_virt
+
1625 * lpfc_sli_hbqbuf_free_all - Free all the hbq buffers
1626 * @phba: Pointer to HBA context object.
1628 * This function is called with no lock held to free all the
1629 * hbq buffers while uninitializing the SLI interface. It also
1630 * frees the HBQ buffers returned by the firmware but not yet
1631 * processed by the upper layers.
1634 lpfc_sli_hbqbuf_free_all(struct lpfc_hba
*phba
)
1636 struct lpfc_dmabuf
*dmabuf
, *next_dmabuf
;
1637 struct hbq_dmabuf
*hbq_buf
;
1638 unsigned long flags
;
1642 hbq_count
= lpfc_sli_hbq_count();
1643 /* Return all memory used by all HBQs */
1644 spin_lock_irqsave(&phba
->hbalock
, flags
);
1645 for (i
= 0; i
< hbq_count
; ++i
) {
1646 list_for_each_entry_safe(dmabuf
, next_dmabuf
,
1647 &phba
->hbqs
[i
].hbq_buffer_list
, list
) {
1648 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1649 list_del(&hbq_buf
->dbuf
.list
);
1650 (phba
->hbqs
[i
].hbq_free_buffer
)(phba
, hbq_buf
);
1652 phba
->hbqs
[i
].buffer_count
= 0;
1654 /* Return all HBQ buffer that are in-fly */
1655 list_for_each_entry_safe(dmabuf
, next_dmabuf
, &phba
->rb_pend_list
,
1657 hbq_buf
= container_of(dmabuf
, struct hbq_dmabuf
, dbuf
);
1658 list_del(&hbq_buf
->dbuf
.list
);
1659 if (hbq_buf
->tag
== -1) {
1660 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1663 hbqno
= hbq_buf
->tag
>> 16;
1664 if (hbqno
>= LPFC_MAX_HBQS
)
1665 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
1668 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
,
1673 /* Mark the HBQs not in use */
1674 phba
->hbq_in_use
= 0;
1675 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1679 * lpfc_sli_hbq_to_firmware - Post the hbq buffer to firmware
1680 * @phba: Pointer to HBA context object.
1681 * @hbqno: HBQ number.
1682 * @hbq_buf: Pointer to HBQ buffer.
1684 * This function is called with the hbalock held to post a
1685 * hbq buffer to the firmware. If the function finds an empty
1686 * slot in the HBQ, it will post the buffer. The function will return
1687 * pointer to the hbq entry if it successfully post the buffer
1688 * else it will return NULL.
1691 lpfc_sli_hbq_to_firmware(struct lpfc_hba
*phba
, uint32_t hbqno
,
1692 struct hbq_dmabuf
*hbq_buf
)
1694 return phba
->lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buf
);
1698 * lpfc_sli_hbq_to_firmware_s3 - Post the hbq buffer to SLI3 firmware
1699 * @phba: Pointer to HBA context object.
1700 * @hbqno: HBQ number.
1701 * @hbq_buf: Pointer to HBQ buffer.
1703 * This function is called with the hbalock held to post a hbq buffer to the
1704 * firmware. If the function finds an empty slot in the HBQ, it will post the
1705 * buffer and place it on the hbq_buffer_list. The function will return zero if
1706 * it successfully post the buffer else it will return an error.
1709 lpfc_sli_hbq_to_firmware_s3(struct lpfc_hba
*phba
, uint32_t hbqno
,
1710 struct hbq_dmabuf
*hbq_buf
)
1712 struct lpfc_hbq_entry
*hbqe
;
1713 dma_addr_t physaddr
= hbq_buf
->dbuf
.phys
;
1715 /* Get next HBQ entry slot to use */
1716 hbqe
= lpfc_sli_next_hbq_slot(phba
, hbqno
);
1718 struct hbq_s
*hbqp
= &phba
->hbqs
[hbqno
];
1720 hbqe
->bde
.addrHigh
= le32_to_cpu(putPaddrHigh(physaddr
));
1721 hbqe
->bde
.addrLow
= le32_to_cpu(putPaddrLow(physaddr
));
1722 hbqe
->bde
.tus
.f
.bdeSize
= hbq_buf
->size
;
1723 hbqe
->bde
.tus
.f
.bdeFlags
= 0;
1724 hbqe
->bde
.tus
.w
= le32_to_cpu(hbqe
->bde
.tus
.w
);
1725 hbqe
->buffer_tag
= le32_to_cpu(hbq_buf
->tag
);
1727 hbqp
->hbqPutIdx
= hbqp
->next_hbqPutIdx
;
1728 writel(hbqp
->hbqPutIdx
, phba
->hbq_put
+ hbqno
);
1730 readl(phba
->hbq_put
+ hbqno
);
1731 list_add_tail(&hbq_buf
->dbuf
.list
, &hbqp
->hbq_buffer_list
);
1738 * lpfc_sli_hbq_to_firmware_s4 - Post the hbq buffer to SLI4 firmware
1739 * @phba: Pointer to HBA context object.
1740 * @hbqno: HBQ number.
1741 * @hbq_buf: Pointer to HBQ buffer.
1743 * This function is called with the hbalock held to post an RQE to the SLI4
1744 * firmware. If able to post the RQE to the RQ it will queue the hbq entry to
1745 * the hbq_buffer_list and return zero, otherwise it will return an error.
1748 lpfc_sli_hbq_to_firmware_s4(struct lpfc_hba
*phba
, uint32_t hbqno
,
1749 struct hbq_dmabuf
*hbq_buf
)
1752 struct lpfc_rqe hrqe
;
1753 struct lpfc_rqe drqe
;
1755 hrqe
.address_lo
= putPaddrLow(hbq_buf
->hbuf
.phys
);
1756 hrqe
.address_hi
= putPaddrHigh(hbq_buf
->hbuf
.phys
);
1757 drqe
.address_lo
= putPaddrLow(hbq_buf
->dbuf
.phys
);
1758 drqe
.address_hi
= putPaddrHigh(hbq_buf
->dbuf
.phys
);
1759 rc
= lpfc_sli4_rq_put(phba
->sli4_hba
.hdr_rq
, phba
->sli4_hba
.dat_rq
,
1764 list_add_tail(&hbq_buf
->dbuf
.list
, &phba
->hbqs
[hbqno
].hbq_buffer_list
);
1768 /* HBQ for ELS and CT traffic. */
1769 static struct lpfc_hbq_init lpfc_els_hbq
= {
1774 .ring_mask
= (1 << LPFC_ELS_RING
),
1780 /* HBQ for the extra ring if needed */
1781 static struct lpfc_hbq_init lpfc_extra_hbq
= {
1786 .ring_mask
= (1 << LPFC_EXTRA_RING
),
1793 struct lpfc_hbq_init
*lpfc_hbq_defs
[] = {
1799 * lpfc_sli_hbqbuf_fill_hbqs - Post more hbq buffers to HBQ
1800 * @phba: Pointer to HBA context object.
1801 * @hbqno: HBQ number.
1802 * @count: Number of HBQ buffers to be posted.
1804 * This function is called with no lock held to post more hbq buffers to the
1805 * given HBQ. The function returns the number of HBQ buffers successfully
1809 lpfc_sli_hbqbuf_fill_hbqs(struct lpfc_hba
*phba
, uint32_t hbqno
, uint32_t count
)
1811 uint32_t i
, posted
= 0;
1812 unsigned long flags
;
1813 struct hbq_dmabuf
*hbq_buffer
;
1814 LIST_HEAD(hbq_buf_list
);
1815 if (!phba
->hbqs
[hbqno
].hbq_alloc_buffer
)
1818 if ((phba
->hbqs
[hbqno
].buffer_count
+ count
) >
1819 lpfc_hbq_defs
[hbqno
]->entry_count
)
1820 count
= lpfc_hbq_defs
[hbqno
]->entry_count
-
1821 phba
->hbqs
[hbqno
].buffer_count
;
1824 /* Allocate HBQ entries */
1825 for (i
= 0; i
< count
; i
++) {
1826 hbq_buffer
= (phba
->hbqs
[hbqno
].hbq_alloc_buffer
)(phba
);
1829 list_add_tail(&hbq_buffer
->dbuf
.list
, &hbq_buf_list
);
1831 /* Check whether HBQ is still in use */
1832 spin_lock_irqsave(&phba
->hbalock
, flags
);
1833 if (!phba
->hbq_in_use
)
1835 while (!list_empty(&hbq_buf_list
)) {
1836 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1838 hbq_buffer
->tag
= (phba
->hbqs
[hbqno
].buffer_count
|
1840 if (!lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
)) {
1841 phba
->hbqs
[hbqno
].buffer_count
++;
1844 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1846 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1849 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
1850 while (!list_empty(&hbq_buf_list
)) {
1851 list_remove_head(&hbq_buf_list
, hbq_buffer
, struct hbq_dmabuf
,
1853 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1859 * lpfc_sli_hbqbuf_add_hbqs - Post more HBQ buffers to firmware
1860 * @phba: Pointer to HBA context object.
1863 * This function posts more buffers to the HBQ. This function
1864 * is called with no lock held. The function returns the number of HBQ entries
1865 * successfully allocated.
1868 lpfc_sli_hbqbuf_add_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1870 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1873 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1874 lpfc_hbq_defs
[qno
]->add_count
);
1878 * lpfc_sli_hbqbuf_init_hbqs - Post initial buffers to the HBQ
1879 * @phba: Pointer to HBA context object.
1880 * @qno: HBQ queue number.
1882 * This function is called from SLI initialization code path with
1883 * no lock held to post initial HBQ buffers to firmware. The
1884 * function returns the number of HBQ entries successfully allocated.
1887 lpfc_sli_hbqbuf_init_hbqs(struct lpfc_hba
*phba
, uint32_t qno
)
1889 if (phba
->sli_rev
== LPFC_SLI_REV4
)
1890 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1891 lpfc_hbq_defs
[qno
]->entry_count
);
1893 return lpfc_sli_hbqbuf_fill_hbqs(phba
, qno
,
1894 lpfc_hbq_defs
[qno
]->init_count
);
1898 * lpfc_sli_hbqbuf_get - Remove the first hbq off of an hbq list
1899 * @phba: Pointer to HBA context object.
1900 * @hbqno: HBQ number.
1902 * This function removes the first hbq buffer on an hbq list and returns a
1903 * pointer to that buffer. If it finds no buffers on the list it returns NULL.
1905 static struct hbq_dmabuf
*
1906 lpfc_sli_hbqbuf_get(struct list_head
*rb_list
)
1908 struct lpfc_dmabuf
*d_buf
;
1910 list_remove_head(rb_list
, d_buf
, struct lpfc_dmabuf
, list
);
1913 return container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1917 * lpfc_sli_hbqbuf_find - Find the hbq buffer associated with a tag
1918 * @phba: Pointer to HBA context object.
1919 * @tag: Tag of the hbq buffer.
1921 * This function is called with hbalock held. This function searches
1922 * for the hbq buffer associated with the given tag in the hbq buffer
1923 * list. If it finds the hbq buffer, it returns the hbq_buffer other wise
1926 static struct hbq_dmabuf
*
1927 lpfc_sli_hbqbuf_find(struct lpfc_hba
*phba
, uint32_t tag
)
1929 struct lpfc_dmabuf
*d_buf
;
1930 struct hbq_dmabuf
*hbq_buf
;
1934 if (hbqno
>= LPFC_MAX_HBQS
)
1937 spin_lock_irq(&phba
->hbalock
);
1938 list_for_each_entry(d_buf
, &phba
->hbqs
[hbqno
].hbq_buffer_list
, list
) {
1939 hbq_buf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
1940 if (hbq_buf
->tag
== tag
) {
1941 spin_unlock_irq(&phba
->hbalock
);
1945 spin_unlock_irq(&phba
->hbalock
);
1946 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
| LOG_VPORT
,
1947 "1803 Bad hbq tag. Data: x%x x%x\n",
1948 tag
, phba
->hbqs
[tag
>> 16].buffer_count
);
1953 * lpfc_sli_free_hbq - Give back the hbq buffer to firmware
1954 * @phba: Pointer to HBA context object.
1955 * @hbq_buffer: Pointer to HBQ buffer.
1957 * This function is called with hbalock. This function gives back
1958 * the hbq buffer to firmware. If the HBQ does not have space to
1959 * post the buffer, it will free the buffer.
1962 lpfc_sli_free_hbq(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbq_buffer
)
1967 hbqno
= hbq_buffer
->tag
>> 16;
1968 if (lpfc_sli_hbq_to_firmware(phba
, hbqno
, hbq_buffer
))
1969 (phba
->hbqs
[hbqno
].hbq_free_buffer
)(phba
, hbq_buffer
);
1974 * lpfc_sli_chk_mbx_command - Check if the mailbox is a legitimate mailbox
1975 * @mbxCommand: mailbox command code.
1977 * This function is called by the mailbox event handler function to verify
1978 * that the completed mailbox command is a legitimate mailbox command. If the
1979 * completed mailbox is not known to the function, it will return MBX_SHUTDOWN
1980 * and the mailbox event handler will take the HBA offline.
1983 lpfc_sli_chk_mbx_command(uint8_t mbxCommand
)
1987 switch (mbxCommand
) {
1991 case MBX_WRITE_VPARMS
:
1992 case MBX_RUN_BIU_DIAG
:
1995 case MBX_CONFIG_LINK
:
1996 case MBX_CONFIG_RING
:
1997 case MBX_RESET_RING
:
1998 case MBX_READ_CONFIG
:
1999 case MBX_READ_RCONFIG
:
2000 case MBX_READ_SPARM
:
2001 case MBX_READ_STATUS
:
2005 case MBX_READ_LNK_STAT
:
2007 case MBX_UNREG_LOGIN
:
2009 case MBX_DUMP_MEMORY
:
2010 case MBX_DUMP_CONTEXT
:
2013 case MBX_UPDATE_CFG
:
2015 case MBX_DEL_LD_ENTRY
:
2016 case MBX_RUN_PROGRAM
:
2018 case MBX_SET_VARIABLE
:
2019 case MBX_UNREG_D_ID
:
2020 case MBX_KILL_BOARD
:
2021 case MBX_CONFIG_FARP
:
2024 case MBX_RUN_BIU_DIAG64
:
2025 case MBX_CONFIG_PORT
:
2026 case MBX_READ_SPARM64
:
2027 case MBX_READ_RPI64
:
2028 case MBX_REG_LOGIN64
:
2029 case MBX_READ_TOPOLOGY
:
2032 case MBX_LOAD_EXP_ROM
:
2033 case MBX_ASYNCEVT_ENABLE
:
2037 case MBX_PORT_CAPABILITIES
:
2038 case MBX_PORT_IOV_CONTROL
:
2039 case MBX_SLI4_CONFIG
:
2040 case MBX_SLI4_REQ_FTRS
:
2042 case MBX_UNREG_FCFI
:
2047 case MBX_RESUME_RPI
:
2048 case MBX_READ_EVENT_LOG_STATUS
:
2049 case MBX_READ_EVENT_LOG
:
2050 case MBX_SECURITY_MGMT
:
2062 * lpfc_sli_wake_mbox_wait - lpfc_sli_issue_mbox_wait mbox completion handler
2063 * @phba: Pointer to HBA context object.
2064 * @pmboxq: Pointer to mailbox command.
2066 * This is completion handler function for mailbox commands issued from
2067 * lpfc_sli_issue_mbox_wait function. This function is called by the
2068 * mailbox event handler function with no lock held. This function
2069 * will wake up thread waiting on the wait queue pointed by context1
2073 lpfc_sli_wake_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
)
2075 wait_queue_head_t
*pdone_q
;
2076 unsigned long drvr_flag
;
2079 * If pdone_q is empty, the driver thread gave up waiting and
2080 * continued running.
2082 pmboxq
->mbox_flag
|= LPFC_MBX_WAKE
;
2083 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
2084 pdone_q
= (wait_queue_head_t
*) pmboxq
->context1
;
2086 wake_up_interruptible(pdone_q
);
2087 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
2093 * lpfc_sli_def_mbox_cmpl - Default mailbox completion handler
2094 * @phba: Pointer to HBA context object.
2095 * @pmb: Pointer to mailbox object.
2097 * This function is the default mailbox completion handler. It
2098 * frees the memory resources associated with the completed mailbox
2099 * command. If the completed command is a REG_LOGIN mailbox command,
2100 * this function will issue a UREG_LOGIN to re-claim the RPI.
2103 lpfc_sli_def_mbox_cmpl(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmb
)
2105 struct lpfc_vport
*vport
= pmb
->vport
;
2106 struct lpfc_dmabuf
*mp
;
2107 struct lpfc_nodelist
*ndlp
;
2108 struct Scsi_Host
*shost
;
2112 mp
= (struct lpfc_dmabuf
*) (pmb
->context1
);
2115 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
2120 * If a REG_LOGIN succeeded after node is destroyed or node
2121 * is in re-discovery driver need to cleanup the RPI.
2123 if (!(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2124 pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
&&
2125 !pmb
->u
.mb
.mbxStatus
) {
2126 rpi
= pmb
->u
.mb
.un
.varWords
[0];
2127 vpi
= pmb
->u
.mb
.un
.varRegLogin
.vpi
- phba
->vpi_base
;
2128 lpfc_unreg_login(phba
, vpi
, rpi
, pmb
);
2129 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
2130 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2131 if (rc
!= MBX_NOT_FINISHED
)
2135 if ((pmb
->u
.mb
.mbxCommand
== MBX_REG_VPI
) &&
2136 !(phba
->pport
->load_flag
& FC_UNLOADING
) &&
2137 !pmb
->u
.mb
.mbxStatus
) {
2138 shost
= lpfc_shost_from_vport(vport
);
2139 spin_lock_irq(shost
->host_lock
);
2140 vport
->vpi_state
|= LPFC_VPI_REGISTERED
;
2141 vport
->fc_flag
&= ~FC_VPORT_NEEDS_REG_VPI
;
2142 spin_unlock_irq(shost
->host_lock
);
2145 if (pmb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
2146 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
2148 pmb
->context2
= NULL
;
2151 /* Check security permission status on INIT_LINK mailbox command */
2152 if ((pmb
->u
.mb
.mbxCommand
== MBX_INIT_LINK
) &&
2153 (pmb
->u
.mb
.mbxStatus
== MBXERR_SEC_NO_PERMISSION
))
2154 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2155 "2860 SLI authentication is required "
2156 "for INIT_LINK but has not done yet\n");
2158 if (bf_get(lpfc_mqe_command
, &pmb
->u
.mqe
) == MBX_SLI4_CONFIG
)
2159 lpfc_sli4_mbox_cmd_free(phba
, pmb
);
2161 mempool_free(pmb
, phba
->mbox_mem_pool
);
2165 * lpfc_sli_handle_mb_event - Handle mailbox completions from firmware
2166 * @phba: Pointer to HBA context object.
2168 * This function is called with no lock held. This function processes all
2169 * the completed mailbox commands and gives it to upper layers. The interrupt
2170 * service routine processes mailbox completion interrupt and adds completed
2171 * mailbox commands to the mboxq_cmpl queue and signals the worker thread.
2172 * Worker thread call lpfc_sli_handle_mb_event, which will return the
2173 * completed mailbox commands in mboxq_cmpl queue to the upper layers. This
2174 * function returns the mailbox commands to the upper layer by calling the
2175 * completion handler function of each mailbox.
2178 lpfc_sli_handle_mb_event(struct lpfc_hba
*phba
)
2185 phba
->sli
.slistat
.mbox_event
++;
2187 /* Get all completed mailboxe buffers into the cmplq */
2188 spin_lock_irq(&phba
->hbalock
);
2189 list_splice_init(&phba
->sli
.mboxq_cmpl
, &cmplq
);
2190 spin_unlock_irq(&phba
->hbalock
);
2192 /* Get a Mailbox buffer to setup mailbox commands for callback */
2194 list_remove_head(&cmplq
, pmb
, LPFC_MBOXQ_t
, list
);
2200 if (pmbox
->mbxCommand
!= MBX_HEARTBEAT
) {
2202 lpfc_debugfs_disc_trc(pmb
->vport
,
2203 LPFC_DISC_TRC_MBOX_VPORT
,
2204 "MBOX cmpl vport: cmd:x%x mb:x%x x%x",
2205 (uint32_t)pmbox
->mbxCommand
,
2206 pmbox
->un
.varWords
[0],
2207 pmbox
->un
.varWords
[1]);
2210 lpfc_debugfs_disc_trc(phba
->pport
,
2212 "MBOX cmpl: cmd:x%x mb:x%x x%x",
2213 (uint32_t)pmbox
->mbxCommand
,
2214 pmbox
->un
.varWords
[0],
2215 pmbox
->un
.varWords
[1]);
2220 * It is a fatal error if unknown mbox command completion.
2222 if (lpfc_sli_chk_mbx_command(pmbox
->mbxCommand
) ==
2224 /* Unknown mailbox command compl */
2225 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
2226 "(%d):0323 Unknown Mailbox command "
2228 pmb
->vport
? pmb
->vport
->vpi
: 0,
2230 lpfc_sli4_mbox_opcode_get(phba
, pmb
));
2231 phba
->link_state
= LPFC_HBA_ERROR
;
2232 phba
->work_hs
= HS_FFER3
;
2233 lpfc_handle_eratt(phba
);
2237 if (pmbox
->mbxStatus
) {
2238 phba
->sli
.slistat
.mbox_stat_err
++;
2239 if (pmbox
->mbxStatus
== MBXERR_NO_RESOURCES
) {
2240 /* Mbox cmd cmpl error - RETRYing */
2241 lpfc_printf_log(phba
, KERN_INFO
,
2243 "(%d):0305 Mbox cmd cmpl "
2244 "error - RETRYing Data: x%x "
2245 "(x%x) x%x x%x x%x\n",
2246 pmb
->vport
? pmb
->vport
->vpi
:0,
2248 lpfc_sli4_mbox_opcode_get(phba
,
2251 pmbox
->un
.varWords
[0],
2252 pmb
->vport
->port_state
);
2253 pmbox
->mbxStatus
= 0;
2254 pmbox
->mbxOwner
= OWN_HOST
;
2255 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
2256 if (rc
!= MBX_NOT_FINISHED
)
2261 /* Mailbox cmd <cmd> Cmpl <cmpl> */
2262 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
2263 "(%d):0307 Mailbox cmd x%x (x%x) Cmpl x%p "
2264 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x\n",
2265 pmb
->vport
? pmb
->vport
->vpi
: 0,
2267 lpfc_sli4_mbox_opcode_get(phba
, pmb
),
2269 *((uint32_t *) pmbox
),
2270 pmbox
->un
.varWords
[0],
2271 pmbox
->un
.varWords
[1],
2272 pmbox
->un
.varWords
[2],
2273 pmbox
->un
.varWords
[3],
2274 pmbox
->un
.varWords
[4],
2275 pmbox
->un
.varWords
[5],
2276 pmbox
->un
.varWords
[6],
2277 pmbox
->un
.varWords
[7]);
2280 pmb
->mbox_cmpl(phba
,pmb
);
2286 * lpfc_sli_get_buff - Get the buffer associated with the buffer tag
2287 * @phba: Pointer to HBA context object.
2288 * @pring: Pointer to driver SLI ring object.
2291 * This function is called with no lock held. When QUE_BUFTAG_BIT bit
2292 * is set in the tag the buffer is posted for a particular exchange,
2293 * the function will return the buffer without replacing the buffer.
2294 * If the buffer is for unsolicited ELS or CT traffic, this function
2295 * returns the buffer and also posts another buffer to the firmware.
2297 static struct lpfc_dmabuf
*
2298 lpfc_sli_get_buff(struct lpfc_hba
*phba
,
2299 struct lpfc_sli_ring
*pring
,
2302 struct hbq_dmabuf
*hbq_entry
;
2304 if (tag
& QUE_BUFTAG_BIT
)
2305 return lpfc_sli_ring_taggedbuf_get(phba
, pring
, tag
);
2306 hbq_entry
= lpfc_sli_hbqbuf_find(phba
, tag
);
2309 return &hbq_entry
->dbuf
;
2313 * lpfc_complete_unsol_iocb - Complete an unsolicited sequence
2314 * @phba: Pointer to HBA context object.
2315 * @pring: Pointer to driver SLI ring object.
2316 * @saveq: Pointer to the iocbq struct representing the sequence starting frame.
2317 * @fch_r_ctl: the r_ctl for the first frame of the sequence.
2318 * @fch_type: the type for the first frame of the sequence.
2320 * This function is called with no lock held. This function uses the r_ctl and
2321 * type of the received sequence to find the correct callback function to call
2322 * to process the sequence.
2325 lpfc_complete_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2326 struct lpfc_iocbq
*saveq
, uint32_t fch_r_ctl
,
2331 /* unSolicited Responses */
2332 if (pring
->prt
[0].profile
) {
2333 if (pring
->prt
[0].lpfc_sli_rcv_unsol_event
)
2334 (pring
->prt
[0].lpfc_sli_rcv_unsol_event
) (phba
, pring
,
2338 /* We must search, based on rctl / type
2339 for the right routine */
2340 for (i
= 0; i
< pring
->num_mask
; i
++) {
2341 if ((pring
->prt
[i
].rctl
== fch_r_ctl
) &&
2342 (pring
->prt
[i
].type
== fch_type
)) {
2343 if (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2344 (pring
->prt
[i
].lpfc_sli_rcv_unsol_event
)
2345 (phba
, pring
, saveq
);
2353 * lpfc_sli_process_unsol_iocb - Unsolicited iocb handler
2354 * @phba: Pointer to HBA context object.
2355 * @pring: Pointer to driver SLI ring object.
2356 * @saveq: Pointer to the unsolicited iocb.
2358 * This function is called with no lock held by the ring event handler
2359 * when there is an unsolicited iocb posted to the response ring by the
2360 * firmware. This function gets the buffer associated with the iocbs
2361 * and calls the event handler for the ring. This function handles both
2362 * qring buffers and hbq buffers.
2363 * When the function returns 1 the caller can free the iocb object otherwise
2364 * upper layer functions will free the iocb objects.
2367 lpfc_sli_process_unsol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2368 struct lpfc_iocbq
*saveq
)
2372 uint32_t Rctl
, Type
;
2374 struct lpfc_iocbq
*iocbq
;
2375 struct lpfc_dmabuf
*dmzbuf
;
2378 irsp
= &(saveq
->iocb
);
2380 if (irsp
->ulpCommand
== CMD_ASYNC_STATUS
) {
2381 if (pring
->lpfc_sli_rcv_async_status
)
2382 pring
->lpfc_sli_rcv_async_status(phba
, pring
, saveq
);
2384 lpfc_printf_log(phba
,
2387 "0316 Ring %d handler: unexpected "
2388 "ASYNC_STATUS iocb received evt_code "
2391 irsp
->un
.asyncstat
.evt_code
);
2395 if ((irsp
->ulpCommand
== CMD_IOCB_RET_XRI64_CX
) &&
2396 (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
)) {
2397 if (irsp
->ulpBdeCount
> 0) {
2398 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2399 irsp
->un
.ulpWord
[3]);
2400 lpfc_in_buf_free(phba
, dmzbuf
);
2403 if (irsp
->ulpBdeCount
> 1) {
2404 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2405 irsp
->unsli3
.sli3Words
[3]);
2406 lpfc_in_buf_free(phba
, dmzbuf
);
2409 if (irsp
->ulpBdeCount
> 2) {
2410 dmzbuf
= lpfc_sli_get_buff(phba
, pring
,
2411 irsp
->unsli3
.sli3Words
[7]);
2412 lpfc_in_buf_free(phba
, dmzbuf
);
2418 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
2419 if (irsp
->ulpBdeCount
!= 0) {
2420 saveq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2421 irsp
->un
.ulpWord
[3]);
2422 if (!saveq
->context2
)
2423 lpfc_printf_log(phba
,
2426 "0341 Ring %d Cannot find buffer for "
2427 "an unsolicited iocb. tag 0x%x\n",
2429 irsp
->un
.ulpWord
[3]);
2431 if (irsp
->ulpBdeCount
== 2) {
2432 saveq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2433 irsp
->unsli3
.sli3Words
[7]);
2434 if (!saveq
->context3
)
2435 lpfc_printf_log(phba
,
2438 "0342 Ring %d Cannot find buffer for an"
2439 " unsolicited iocb. tag 0x%x\n",
2441 irsp
->unsli3
.sli3Words
[7]);
2443 list_for_each_entry(iocbq
, &saveq
->list
, list
) {
2444 irsp
= &(iocbq
->iocb
);
2445 if (irsp
->ulpBdeCount
!= 0) {
2446 iocbq
->context2
= lpfc_sli_get_buff(phba
, pring
,
2447 irsp
->un
.ulpWord
[3]);
2448 if (!iocbq
->context2
)
2449 lpfc_printf_log(phba
,
2452 "0343 Ring %d Cannot find "
2453 "buffer for an unsolicited iocb"
2454 ". tag 0x%x\n", pring
->ringno
,
2455 irsp
->un
.ulpWord
[3]);
2457 if (irsp
->ulpBdeCount
== 2) {
2458 iocbq
->context3
= lpfc_sli_get_buff(phba
, pring
,
2459 irsp
->unsli3
.sli3Words
[7]);
2460 if (!iocbq
->context3
)
2461 lpfc_printf_log(phba
,
2464 "0344 Ring %d Cannot find "
2465 "buffer for an unsolicited "
2468 irsp
->unsli3
.sli3Words
[7]);
2472 if (irsp
->ulpBdeCount
!= 0 &&
2473 (irsp
->ulpCommand
== CMD_IOCB_RCV_CONT64_CX
||
2474 irsp
->ulpStatus
== IOSTAT_INTERMED_RSP
)) {
2477 /* search continue save q for same XRI */
2478 list_for_each_entry(iocbq
, &pring
->iocb_continue_saveq
, clist
) {
2479 if (iocbq
->iocb
.ulpContext
== saveq
->iocb
.ulpContext
) {
2480 list_add_tail(&saveq
->list
, &iocbq
->list
);
2486 list_add_tail(&saveq
->clist
,
2487 &pring
->iocb_continue_saveq
);
2488 if (saveq
->iocb
.ulpStatus
!= IOSTAT_INTERMED_RSP
) {
2489 list_del_init(&iocbq
->clist
);
2491 irsp
= &(saveq
->iocb
);
2495 if ((irsp
->ulpCommand
== CMD_RCV_ELS_REQ64_CX
) ||
2496 (irsp
->ulpCommand
== CMD_RCV_ELS_REQ_CX
) ||
2497 (irsp
->ulpCommand
== CMD_IOCB_RCV_ELS64_CX
)) {
2498 Rctl
= FC_RCTL_ELS_REQ
;
2501 w5p
= (WORD5
*)&(saveq
->iocb
.un
.ulpWord
[5]);
2502 Rctl
= w5p
->hcsw
.Rctl
;
2503 Type
= w5p
->hcsw
.Type
;
2505 /* Firmware Workaround */
2506 if ((Rctl
== 0) && (pring
->ringno
== LPFC_ELS_RING
) &&
2507 (irsp
->ulpCommand
== CMD_RCV_SEQUENCE64_CX
||
2508 irsp
->ulpCommand
== CMD_IOCB_RCV_SEQ64_CX
)) {
2509 Rctl
= FC_RCTL_ELS_REQ
;
2511 w5p
->hcsw
.Rctl
= Rctl
;
2512 w5p
->hcsw
.Type
= Type
;
2516 if (!lpfc_complete_unsol_iocb(phba
, pring
, saveq
, Rctl
, Type
))
2517 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2518 "0313 Ring %d handler: unexpected Rctl x%x "
2519 "Type x%x received\n",
2520 pring
->ringno
, Rctl
, Type
);
2526 * lpfc_sli_iocbq_lookup - Find command iocb for the given response iocb
2527 * @phba: Pointer to HBA context object.
2528 * @pring: Pointer to driver SLI ring object.
2529 * @prspiocb: Pointer to response iocb object.
2531 * This function looks up the iocb_lookup table to get the command iocb
2532 * corresponding to the given response iocb using the iotag of the
2533 * response iocb. This function is called with the hbalock held.
2534 * This function returns the command iocb object if it finds the command
2535 * iocb else returns NULL.
2537 static struct lpfc_iocbq
*
2538 lpfc_sli_iocbq_lookup(struct lpfc_hba
*phba
,
2539 struct lpfc_sli_ring
*pring
,
2540 struct lpfc_iocbq
*prspiocb
)
2542 struct lpfc_iocbq
*cmd_iocb
= NULL
;
2545 iotag
= prspiocb
->iocb
.ulpIoTag
;
2547 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2548 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2549 list_del_init(&cmd_iocb
->list
);
2550 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2551 pring
->txcmplq_cnt
--;
2552 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2557 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2558 "0317 iotag x%x is out off "
2559 "range: max iotag x%x wd0 x%x\n",
2560 iotag
, phba
->sli
.last_iotag
,
2561 *(((uint32_t *) &prspiocb
->iocb
) + 7));
2566 * lpfc_sli_iocbq_lookup_by_tag - Find command iocb for the iotag
2567 * @phba: Pointer to HBA context object.
2568 * @pring: Pointer to driver SLI ring object.
2571 * This function looks up the iocb_lookup table to get the command iocb
2572 * corresponding to the given iotag. This function is called with the
2574 * This function returns the command iocb object if it finds the command
2575 * iocb else returns NULL.
2577 static struct lpfc_iocbq
*
2578 lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba
*phba
,
2579 struct lpfc_sli_ring
*pring
, uint16_t iotag
)
2581 struct lpfc_iocbq
*cmd_iocb
;
2583 if (iotag
!= 0 && iotag
<= phba
->sli
.last_iotag
) {
2584 cmd_iocb
= phba
->sli
.iocbq_lookup
[iotag
];
2585 list_del_init(&cmd_iocb
->list
);
2586 if (cmd_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
2587 cmd_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
2588 pring
->txcmplq_cnt
--;
2593 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2594 "0372 iotag x%x is out off range: max iotag (x%x)\n",
2595 iotag
, phba
->sli
.last_iotag
);
2600 * lpfc_sli_process_sol_iocb - process solicited iocb completion
2601 * @phba: Pointer to HBA context object.
2602 * @pring: Pointer to driver SLI ring object.
2603 * @saveq: Pointer to the response iocb to be processed.
2605 * This function is called by the ring event handler for non-fcp
2606 * rings when there is a new response iocb in the response ring.
2607 * The caller is not required to hold any locks. This function
2608 * gets the command iocb associated with the response iocb and
2609 * calls the completion handler for the command iocb. If there
2610 * is no completion handler, the function will free the resources
2611 * associated with command iocb. If the response iocb is for
2612 * an already aborted command iocb, the status of the completion
2613 * is changed to IOSTAT_LOCAL_REJECT/IOERR_SLI_ABORTED.
2614 * This function always returns 1.
2617 lpfc_sli_process_sol_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
2618 struct lpfc_iocbq
*saveq
)
2620 struct lpfc_iocbq
*cmdiocbp
;
2622 unsigned long iflag
;
2624 /* Based on the iotag field, get the cmd IOCB from the txcmplq */
2625 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2626 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
, saveq
);
2627 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2630 if (cmdiocbp
->iocb_cmpl
) {
2632 * If an ELS command failed send an event to mgmt
2635 if (saveq
->iocb
.ulpStatus
&&
2636 (pring
->ringno
== LPFC_ELS_RING
) &&
2637 (cmdiocbp
->iocb
.ulpCommand
==
2638 CMD_ELS_REQUEST64_CR
))
2639 lpfc_send_els_failure_event(phba
,
2643 * Post all ELS completions to the worker thread.
2644 * All other are passed to the completion callback.
2646 if (pring
->ringno
== LPFC_ELS_RING
) {
2647 if ((phba
->sli_rev
< LPFC_SLI_REV4
) &&
2648 (cmdiocbp
->iocb_flag
&
2649 LPFC_DRIVER_ABORTED
)) {
2650 spin_lock_irqsave(&phba
->hbalock
,
2652 cmdiocbp
->iocb_flag
&=
2653 ~LPFC_DRIVER_ABORTED
;
2654 spin_unlock_irqrestore(&phba
->hbalock
,
2656 saveq
->iocb
.ulpStatus
=
2657 IOSTAT_LOCAL_REJECT
;
2658 saveq
->iocb
.un
.ulpWord
[4] =
2661 /* Firmware could still be in progress
2662 * of DMAing payload, so don't free data
2663 * buffer till after a hbeat.
2665 spin_lock_irqsave(&phba
->hbalock
,
2667 saveq
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
2668 spin_unlock_irqrestore(&phba
->hbalock
,
2671 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
2672 if (saveq
->iocb_flag
&
2673 LPFC_EXCHANGE_BUSY
) {
2674 /* Set cmdiocb flag for the
2675 * exchange busy so sgl (xri)
2676 * will not be released until
2677 * the abort xri is received
2681 &phba
->hbalock
, iflag
);
2682 cmdiocbp
->iocb_flag
|=
2684 spin_unlock_irqrestore(
2685 &phba
->hbalock
, iflag
);
2687 if (cmdiocbp
->iocb_flag
&
2688 LPFC_DRIVER_ABORTED
) {
2690 * Clear LPFC_DRIVER_ABORTED
2691 * bit in case it was driver
2695 &phba
->hbalock
, iflag
);
2696 cmdiocbp
->iocb_flag
&=
2697 ~LPFC_DRIVER_ABORTED
;
2698 spin_unlock_irqrestore(
2699 &phba
->hbalock
, iflag
);
2700 cmdiocbp
->iocb
.ulpStatus
=
2701 IOSTAT_LOCAL_REJECT
;
2702 cmdiocbp
->iocb
.un
.ulpWord
[4] =
2703 IOERR_ABORT_REQUESTED
;
2705 * For SLI4, irsiocb contains
2706 * NO_XRI in sli_xritag, it
2707 * shall not affect releasing
2708 * sgl (xri) process.
2710 saveq
->iocb
.ulpStatus
=
2711 IOSTAT_LOCAL_REJECT
;
2712 saveq
->iocb
.un
.ulpWord
[4] =
2715 &phba
->hbalock
, iflag
);
2717 LPFC_DELAY_MEM_FREE
;
2718 spin_unlock_irqrestore(
2719 &phba
->hbalock
, iflag
);
2723 (cmdiocbp
->iocb_cmpl
) (phba
, cmdiocbp
, saveq
);
2725 lpfc_sli_release_iocbq(phba
, cmdiocbp
);
2728 * Unknown initiating command based on the response iotag.
2729 * This could be the case on the ELS ring because of
2732 if (pring
->ringno
!= LPFC_ELS_RING
) {
2734 * Ring <ringno> handler: unexpected completion IoTag
2737 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2738 "0322 Ring %d handler: "
2739 "unexpected completion IoTag x%x "
2740 "Data: x%x x%x x%x x%x\n",
2742 saveq
->iocb
.ulpIoTag
,
2743 saveq
->iocb
.ulpStatus
,
2744 saveq
->iocb
.un
.ulpWord
[4],
2745 saveq
->iocb
.ulpCommand
,
2746 saveq
->iocb
.ulpContext
);
2754 * lpfc_sli_rsp_pointers_error - Response ring pointer error handler
2755 * @phba: Pointer to HBA context object.
2756 * @pring: Pointer to driver SLI ring object.
2758 * This function is called from the iocb ring event handlers when
2759 * put pointer is ahead of the get pointer for a ring. This function signal
2760 * an error attention condition to the worker thread and the worker
2761 * thread will transition the HBA to offline state.
2764 lpfc_sli_rsp_pointers_error(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
2766 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2768 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
2769 * rsp ring <portRspMax>
2771 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2772 "0312 Ring %d handler: portRspPut %d "
2773 "is bigger than rsp ring %d\n",
2774 pring
->ringno
, le32_to_cpu(pgp
->rspPutInx
),
2777 phba
->link_state
= LPFC_HBA_ERROR
;
2780 * All error attention handlers are posted to
2783 phba
->work_ha
|= HA_ERATT
;
2784 phba
->work_hs
= HS_FFER3
;
2786 lpfc_worker_wake_up(phba
);
2792 * lpfc_poll_eratt - Error attention polling timer timeout handler
2793 * @ptr: Pointer to address of HBA context object.
2795 * This function is invoked by the Error Attention polling timer when the
2796 * timer times out. It will check the SLI Error Attention register for
2797 * possible attention events. If so, it will post an Error Attention event
2798 * and wake up worker thread to process it. Otherwise, it will set up the
2799 * Error Attention polling timer for the next poll.
2801 void lpfc_poll_eratt(unsigned long ptr
)
2803 struct lpfc_hba
*phba
;
2806 phba
= (struct lpfc_hba
*)ptr
;
2808 /* Check chip HA register for error event */
2809 eratt
= lpfc_sli_check_eratt(phba
);
2812 /* Tell the worker thread there is work to do */
2813 lpfc_worker_wake_up(phba
);
2815 /* Restart the timer for next eratt poll */
2816 mod_timer(&phba
->eratt_poll
, jiffies
+
2817 HZ
* LPFC_ERATT_POLL_INTERVAL
);
2823 * lpfc_sli_handle_fast_ring_event - Handle ring events on FCP ring
2824 * @phba: Pointer to HBA context object.
2825 * @pring: Pointer to driver SLI ring object.
2826 * @mask: Host attention register mask for this ring.
2828 * This function is called from the interrupt context when there is a ring
2829 * event for the fcp ring. The caller does not hold any lock.
2830 * The function processes each response iocb in the response ring until it
2831 * finds an iocb with LE bit set and chains all the iocbs upto the iocb with
2832 * LE bit set. The function will call the completion handler of the command iocb
2833 * if the response iocb indicates a completion for a command iocb or it is
2834 * an abort completion. The function will call lpfc_sli_process_unsol_iocb
2835 * function if this is an unsolicited iocb.
2836 * This routine presumes LPFC_FCP_RING handling and doesn't bother
2837 * to check it explicitly.
2840 lpfc_sli_handle_fast_ring_event(struct lpfc_hba
*phba
,
2841 struct lpfc_sli_ring
*pring
, uint32_t mask
)
2843 struct lpfc_pgp
*pgp
= &phba
->port_gp
[pring
->ringno
];
2844 IOCB_t
*irsp
= NULL
;
2845 IOCB_t
*entry
= NULL
;
2846 struct lpfc_iocbq
*cmdiocbq
= NULL
;
2847 struct lpfc_iocbq rspiocbq
;
2849 uint32_t portRspPut
, portRspMax
;
2851 lpfc_iocb_type type
;
2852 unsigned long iflag
;
2853 uint32_t rsp_cmpl
= 0;
2855 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2856 pring
->stats
.iocb_event
++;
2859 * The next available response entry should never exceed the maximum
2860 * entries. If it does, treat it as an adapter hardware error.
2862 portRspMax
= pring
->numRiocb
;
2863 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2864 if (unlikely(portRspPut
>= portRspMax
)) {
2865 lpfc_sli_rsp_pointers_error(phba
, pring
);
2866 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2869 if (phba
->fcp_ring_in_use
) {
2870 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2873 phba
->fcp_ring_in_use
= 1;
2876 while (pring
->rspidx
!= portRspPut
) {
2878 * Fetch an entry off the ring and copy it into a local data
2879 * structure. The copy involves a byte-swap since the
2880 * network byte order and pci byte orders are different.
2882 entry
= lpfc_resp_iocb(phba
, pring
);
2883 phba
->last_completion_time
= jiffies
;
2885 if (++pring
->rspidx
>= portRspMax
)
2888 lpfc_sli_pcimem_bcopy((uint32_t *) entry
,
2889 (uint32_t *) &rspiocbq
.iocb
,
2890 phba
->iocb_rsp_size
);
2891 INIT_LIST_HEAD(&(rspiocbq
.list
));
2892 irsp
= &rspiocbq
.iocb
;
2894 type
= lpfc_sli_iocb_cmd_type(irsp
->ulpCommand
& CMD_IOCB_MASK
);
2895 pring
->stats
.iocb_rsp
++;
2898 if (unlikely(irsp
->ulpStatus
)) {
2900 * If resource errors reported from HBA, reduce
2901 * queuedepths of the SCSI device.
2903 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
2904 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
2905 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2906 phba
->lpfc_rampdown_queue_depth(phba
);
2907 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2910 /* Rsp ring <ringno> error: IOCB */
2911 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
2912 "0336 Rsp Ring %d error: IOCB Data: "
2913 "x%x x%x x%x x%x x%x x%x x%x x%x\n",
2915 irsp
->un
.ulpWord
[0],
2916 irsp
->un
.ulpWord
[1],
2917 irsp
->un
.ulpWord
[2],
2918 irsp
->un
.ulpWord
[3],
2919 irsp
->un
.ulpWord
[4],
2920 irsp
->un
.ulpWord
[5],
2921 *(uint32_t *)&irsp
->un1
,
2922 *((uint32_t *)&irsp
->un1
+ 1));
2926 case LPFC_ABORT_IOCB
:
2929 * Idle exchange closed via ABTS from port. No iocb
2930 * resources need to be recovered.
2932 if (unlikely(irsp
->ulpCommand
== CMD_XRI_ABORTED_CX
)) {
2933 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
2934 "0333 IOCB cmd 0x%x"
2935 " processed. Skipping"
2941 cmdiocbq
= lpfc_sli_iocbq_lookup(phba
, pring
,
2943 if (unlikely(!cmdiocbq
))
2945 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
)
2946 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
2947 if (cmdiocbq
->iocb_cmpl
) {
2948 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2949 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
,
2951 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2954 case LPFC_UNSOL_IOCB
:
2955 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
2956 lpfc_sli_process_unsol_iocb(phba
, pring
, &rspiocbq
);
2957 spin_lock_irqsave(&phba
->hbalock
, iflag
);
2960 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
2961 char adaptermsg
[LPFC_MAX_ADPTMSG
];
2962 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
2963 memcpy(&adaptermsg
[0], (uint8_t *) irsp
,
2965 dev_warn(&((phba
->pcidev
)->dev
),
2967 phba
->brd_no
, adaptermsg
);
2969 /* Unknown IOCB command */
2970 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
2971 "0334 Unknown IOCB command "
2972 "Data: x%x, x%x x%x x%x x%x\n",
2973 type
, irsp
->ulpCommand
,
2982 * The response IOCB has been processed. Update the ring
2983 * pointer in SLIM. If the port response put pointer has not
2984 * been updated, sync the pgp->rspPutInx and fetch the new port
2985 * response put pointer.
2987 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
2989 if (pring
->rspidx
== portRspPut
)
2990 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
2993 if ((rsp_cmpl
> 0) && (mask
& HA_R0RE_REQ
)) {
2994 pring
->stats
.iocb_rsp_full
++;
2995 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
2996 writel(status
, phba
->CAregaddr
);
2997 readl(phba
->CAregaddr
);
2999 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3000 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3001 pring
->stats
.iocb_cmd_empty
++;
3003 /* Force update of the local copy of cmdGetInx */
3004 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3005 lpfc_sli_resume_iocb(phba
, pring
);
3007 if ((pring
->lpfc_sli_cmd_available
))
3008 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3012 phba
->fcp_ring_in_use
= 0;
3013 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3018 * lpfc_sli_sp_handle_rspiocb - Handle slow-path response iocb
3019 * @phba: Pointer to HBA context object.
3020 * @pring: Pointer to driver SLI ring object.
3021 * @rspiocbp: Pointer to driver response IOCB object.
3023 * This function is called from the worker thread when there is a slow-path
3024 * response IOCB to process. This function chains all the response iocbs until
3025 * seeing the iocb with the LE bit set. The function will call
3026 * lpfc_sli_process_sol_iocb function if the response iocb indicates a
3027 * completion of a command iocb. The function will call the
3028 * lpfc_sli_process_unsol_iocb function if this is an unsolicited iocb.
3029 * The function frees the resources or calls the completion handler if this
3030 * iocb is an abort completion. The function returns NULL when the response
3031 * iocb has the LE bit set and all the chained iocbs are processed, otherwise
3032 * this function shall chain the iocb on to the iocb_continueq and return the
3033 * response iocb passed in.
3035 static struct lpfc_iocbq
*
3036 lpfc_sli_sp_handle_rspiocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
3037 struct lpfc_iocbq
*rspiocbp
)
3039 struct lpfc_iocbq
*saveq
;
3040 struct lpfc_iocbq
*cmdiocbp
;
3041 struct lpfc_iocbq
*next_iocb
;
3042 IOCB_t
*irsp
= NULL
;
3043 uint32_t free_saveq
;
3044 uint8_t iocb_cmd_type
;
3045 lpfc_iocb_type type
;
3046 unsigned long iflag
;
3049 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3050 /* First add the response iocb to the countinueq list */
3051 list_add_tail(&rspiocbp
->list
, &(pring
->iocb_continueq
));
3052 pring
->iocb_continueq_cnt
++;
3054 /* Now, determine whetehr the list is completed for processing */
3055 irsp
= &rspiocbp
->iocb
;
3058 * By default, the driver expects to free all resources
3059 * associated with this iocb completion.
3062 saveq
= list_get_first(&pring
->iocb_continueq
,
3063 struct lpfc_iocbq
, list
);
3064 irsp
= &(saveq
->iocb
);
3065 list_del_init(&pring
->iocb_continueq
);
3066 pring
->iocb_continueq_cnt
= 0;
3068 pring
->stats
.iocb_rsp
++;
3071 * If resource errors reported from HBA, reduce
3072 * queuedepths of the SCSI device.
3074 if ((irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) &&
3075 (irsp
->un
.ulpWord
[4] == IOERR_NO_RESOURCES
)) {
3076 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3077 phba
->lpfc_rampdown_queue_depth(phba
);
3078 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3081 if (irsp
->ulpStatus
) {
3082 /* Rsp ring <ringno> error: IOCB */
3083 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
3084 "0328 Rsp Ring %d error: "
3089 "x%x x%x x%x x%x\n",
3091 irsp
->un
.ulpWord
[0],
3092 irsp
->un
.ulpWord
[1],
3093 irsp
->un
.ulpWord
[2],
3094 irsp
->un
.ulpWord
[3],
3095 irsp
->un
.ulpWord
[4],
3096 irsp
->un
.ulpWord
[5],
3097 *(((uint32_t *) irsp
) + 6),
3098 *(((uint32_t *) irsp
) + 7),
3099 *(((uint32_t *) irsp
) + 8),
3100 *(((uint32_t *) irsp
) + 9),
3101 *(((uint32_t *) irsp
) + 10),
3102 *(((uint32_t *) irsp
) + 11),
3103 *(((uint32_t *) irsp
) + 12),
3104 *(((uint32_t *) irsp
) + 13),
3105 *(((uint32_t *) irsp
) + 14),
3106 *(((uint32_t *) irsp
) + 15));
3110 * Fetch the IOCB command type and call the correct completion
3111 * routine. Solicited and Unsolicited IOCBs on the ELS ring
3112 * get freed back to the lpfc_iocb_list by the discovery
3115 iocb_cmd_type
= irsp
->ulpCommand
& CMD_IOCB_MASK
;
3116 type
= lpfc_sli_iocb_cmd_type(iocb_cmd_type
);
3119 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3120 rc
= lpfc_sli_process_sol_iocb(phba
, pring
, saveq
);
3121 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3124 case LPFC_UNSOL_IOCB
:
3125 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3126 rc
= lpfc_sli_process_unsol_iocb(phba
, pring
, saveq
);
3127 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3132 case LPFC_ABORT_IOCB
:
3134 if (irsp
->ulpCommand
!= CMD_XRI_ABORTED_CX
)
3135 cmdiocbp
= lpfc_sli_iocbq_lookup(phba
, pring
,
3138 /* Call the specified completion routine */
3139 if (cmdiocbp
->iocb_cmpl
) {
3140 spin_unlock_irqrestore(&phba
->hbalock
,
3142 (cmdiocbp
->iocb_cmpl
)(phba
, cmdiocbp
,
3144 spin_lock_irqsave(&phba
->hbalock
,
3147 __lpfc_sli_release_iocbq(phba
,
3152 case LPFC_UNKNOWN_IOCB
:
3153 if (irsp
->ulpCommand
== CMD_ADAPTER_MSG
) {
3154 char adaptermsg
[LPFC_MAX_ADPTMSG
];
3155 memset(adaptermsg
, 0, LPFC_MAX_ADPTMSG
);
3156 memcpy(&adaptermsg
[0], (uint8_t *)irsp
,
3158 dev_warn(&((phba
->pcidev
)->dev
),
3160 phba
->brd_no
, adaptermsg
);
3162 /* Unknown IOCB command */
3163 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3164 "0335 Unknown IOCB "
3165 "command Data: x%x "
3176 list_for_each_entry_safe(rspiocbp
, next_iocb
,
3177 &saveq
->list
, list
) {
3178 list_del(&rspiocbp
->list
);
3179 __lpfc_sli_release_iocbq(phba
, rspiocbp
);
3181 __lpfc_sli_release_iocbq(phba
, saveq
);
3185 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3190 * lpfc_sli_handle_slow_ring_event - Wrapper func for handling slow-path iocbs
3191 * @phba: Pointer to HBA context object.
3192 * @pring: Pointer to driver SLI ring object.
3193 * @mask: Host attention register mask for this ring.
3195 * This routine wraps the actual slow_ring event process routine from the
3196 * API jump table function pointer from the lpfc_hba struct.
3199 lpfc_sli_handle_slow_ring_event(struct lpfc_hba
*phba
,
3200 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3202 phba
->lpfc_sli_handle_slow_ring_event(phba
, pring
, mask
);
3206 * lpfc_sli_handle_slow_ring_event_s3 - Handle SLI3 ring event for non-FCP rings
3207 * @phba: Pointer to HBA context object.
3208 * @pring: Pointer to driver SLI ring object.
3209 * @mask: Host attention register mask for this ring.
3211 * This function is called from the worker thread when there is a ring event
3212 * for non-fcp rings. The caller does not hold any lock. The function will
3213 * remove each response iocb in the response ring and calls the handle
3214 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3217 lpfc_sli_handle_slow_ring_event_s3(struct lpfc_hba
*phba
,
3218 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3220 struct lpfc_pgp
*pgp
;
3222 IOCB_t
*irsp
= NULL
;
3223 struct lpfc_iocbq
*rspiocbp
= NULL
;
3224 uint32_t portRspPut
, portRspMax
;
3225 unsigned long iflag
;
3228 pgp
= &phba
->port_gp
[pring
->ringno
];
3229 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3230 pring
->stats
.iocb_event
++;
3233 * The next available response entry should never exceed the maximum
3234 * entries. If it does, treat it as an adapter hardware error.
3236 portRspMax
= pring
->numRiocb
;
3237 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3238 if (portRspPut
>= portRspMax
) {
3240 * Ring <ringno> handler: portRspPut <portRspPut> is bigger than
3241 * rsp ring <portRspMax>
3243 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3244 "0303 Ring %d handler: portRspPut %d "
3245 "is bigger than rsp ring %d\n",
3246 pring
->ringno
, portRspPut
, portRspMax
);
3248 phba
->link_state
= LPFC_HBA_ERROR
;
3249 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3251 phba
->work_hs
= HS_FFER3
;
3252 lpfc_handle_eratt(phba
);
3258 while (pring
->rspidx
!= portRspPut
) {
3260 * Build a completion list and call the appropriate handler.
3261 * The process is to get the next available response iocb, get
3262 * a free iocb from the list, copy the response data into the
3263 * free iocb, insert to the continuation list, and update the
3264 * next response index to slim. This process makes response
3265 * iocb's in the ring available to DMA as fast as possible but
3266 * pays a penalty for a copy operation. Since the iocb is
3267 * only 32 bytes, this penalty is considered small relative to
3268 * the PCI reads for register values and a slim write. When
3269 * the ulpLe field is set, the entire Command has been
3272 entry
= lpfc_resp_iocb(phba
, pring
);
3274 phba
->last_completion_time
= jiffies
;
3275 rspiocbp
= __lpfc_sli_get_iocbq(phba
);
3276 if (rspiocbp
== NULL
) {
3277 printk(KERN_ERR
"%s: out of buffers! Failing "
3278 "completion.\n", __func__
);
3282 lpfc_sli_pcimem_bcopy(entry
, &rspiocbp
->iocb
,
3283 phba
->iocb_rsp_size
);
3284 irsp
= &rspiocbp
->iocb
;
3286 if (++pring
->rspidx
>= portRspMax
)
3289 if (pring
->ringno
== LPFC_ELS_RING
) {
3290 lpfc_debugfs_slow_ring_trc(phba
,
3291 "IOCB rsp ring: wd4:x%08x wd6:x%08x wd7:x%08x",
3292 *(((uint32_t *) irsp
) + 4),
3293 *(((uint32_t *) irsp
) + 6),
3294 *(((uint32_t *) irsp
) + 7));
3297 writel(pring
->rspidx
, &phba
->host_gp
[pring
->ringno
].rspGetInx
);
3299 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3300 /* Handle the response IOCB */
3301 rspiocbp
= lpfc_sli_sp_handle_rspiocb(phba
, pring
, rspiocbp
);
3302 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3305 * If the port response put pointer has not been updated, sync
3306 * the pgp->rspPutInx in the MAILBOX_tand fetch the new port
3307 * response put pointer.
3309 if (pring
->rspidx
== portRspPut
) {
3310 portRspPut
= le32_to_cpu(pgp
->rspPutInx
);
3312 } /* while (pring->rspidx != portRspPut) */
3314 if ((rspiocbp
!= NULL
) && (mask
& HA_R0RE_REQ
)) {
3315 /* At least one response entry has been freed */
3316 pring
->stats
.iocb_rsp_full
++;
3317 /* SET RxRE_RSP in Chip Att register */
3318 status
= ((CA_R0ATT
| CA_R0RE_RSP
) << (pring
->ringno
* 4));
3319 writel(status
, phba
->CAregaddr
);
3320 readl(phba
->CAregaddr
); /* flush */
3322 if ((mask
& HA_R0CE_RSP
) && (pring
->flag
& LPFC_CALL_RING_AVAILABLE
)) {
3323 pring
->flag
&= ~LPFC_CALL_RING_AVAILABLE
;
3324 pring
->stats
.iocb_cmd_empty
++;
3326 /* Force update of the local copy of cmdGetInx */
3327 pring
->local_getidx
= le32_to_cpu(pgp
->cmdGetInx
);
3328 lpfc_sli_resume_iocb(phba
, pring
);
3330 if ((pring
->lpfc_sli_cmd_available
))
3331 (pring
->lpfc_sli_cmd_available
) (phba
, pring
);
3335 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3340 * lpfc_sli_handle_slow_ring_event_s4 - Handle SLI4 slow-path els events
3341 * @phba: Pointer to HBA context object.
3342 * @pring: Pointer to driver SLI ring object.
3343 * @mask: Host attention register mask for this ring.
3345 * This function is called from the worker thread when there is a pending
3346 * ELS response iocb on the driver internal slow-path response iocb worker
3347 * queue. The caller does not hold any lock. The function will remove each
3348 * response iocb from the response worker queue and calls the handle
3349 * response iocb routine (lpfc_sli_sp_handle_rspiocb) to process it.
3352 lpfc_sli_handle_slow_ring_event_s4(struct lpfc_hba
*phba
,
3353 struct lpfc_sli_ring
*pring
, uint32_t mask
)
3355 struct lpfc_iocbq
*irspiocbq
;
3356 struct hbq_dmabuf
*dmabuf
;
3357 struct lpfc_cq_event
*cq_event
;
3358 unsigned long iflag
;
3360 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3361 phba
->hba_flag
&= ~HBA_SP_QUEUE_EVT
;
3362 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3363 while (!list_empty(&phba
->sli4_hba
.sp_queue_event
)) {
3364 /* Get the response iocb from the head of work queue */
3365 spin_lock_irqsave(&phba
->hbalock
, iflag
);
3366 list_remove_head(&phba
->sli4_hba
.sp_queue_event
,
3367 cq_event
, struct lpfc_cq_event
, list
);
3368 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
3370 switch (bf_get(lpfc_wcqe_c_code
, &cq_event
->cqe
.wcqe_cmpl
)) {
3371 case CQE_CODE_COMPL_WQE
:
3372 irspiocbq
= container_of(cq_event
, struct lpfc_iocbq
,
3374 /* Translate ELS WCQE to response IOCBQ */
3375 irspiocbq
= lpfc_sli4_els_wcqe_to_rspiocbq(phba
,
3378 lpfc_sli_sp_handle_rspiocb(phba
, pring
,
3381 case CQE_CODE_RECEIVE
:
3382 dmabuf
= container_of(cq_event
, struct hbq_dmabuf
,
3384 lpfc_sli4_handle_received_buffer(phba
, dmabuf
);
3393 * lpfc_sli_abort_iocb_ring - Abort all iocbs in the ring
3394 * @phba: Pointer to HBA context object.
3395 * @pring: Pointer to driver SLI ring object.
3397 * This function aborts all iocbs in the given ring and frees all the iocb
3398 * objects in txq. This function issues an abort iocb for all the iocb commands
3399 * in txcmplq. The iocbs in the txcmplq is not guaranteed to complete before
3400 * the return of this function. The caller is not required to hold any locks.
3403 lpfc_sli_abort_iocb_ring(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
3405 LIST_HEAD(completions
);
3406 struct lpfc_iocbq
*iocb
, *next_iocb
;
3408 if (pring
->ringno
== LPFC_ELS_RING
) {
3409 lpfc_fabric_abort_hba(phba
);
3412 /* Error everything on txq and txcmplq
3415 spin_lock_irq(&phba
->hbalock
);
3416 list_splice_init(&pring
->txq
, &completions
);
3419 /* Next issue ABTS for everything on the txcmplq */
3420 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
3421 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
3423 spin_unlock_irq(&phba
->hbalock
);
3425 /* Cancel all the IOCBs from the completions list */
3426 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
3431 * lpfc_sli_flush_fcp_rings - flush all iocbs in the fcp ring
3432 * @phba: Pointer to HBA context object.
3434 * This function flushes all iocbs in the fcp ring and frees all the iocb
3435 * objects in txq and txcmplq. This function will not issue abort iocbs
3436 * for all the iocb commands in txcmplq, they will just be returned with
3437 * IOERR_SLI_DOWN. This function is invoked with EEH when device's PCI
3438 * slot has been permanently disabled.
3441 lpfc_sli_flush_fcp_rings(struct lpfc_hba
*phba
)
3445 struct lpfc_sli
*psli
= &phba
->sli
;
3446 struct lpfc_sli_ring
*pring
;
3448 /* Currently, only one fcp ring */
3449 pring
= &psli
->ring
[psli
->fcp_ring
];
3451 spin_lock_irq(&phba
->hbalock
);
3452 /* Retrieve everything on txq */
3453 list_splice_init(&pring
->txq
, &txq
);
3456 /* Retrieve everything on the txcmplq */
3457 list_splice_init(&pring
->txcmplq
, &txcmplq
);
3458 pring
->txcmplq_cnt
= 0;
3459 spin_unlock_irq(&phba
->hbalock
);
3462 lpfc_sli_cancel_iocbs(phba
, &txq
, IOSTAT_LOCAL_REJECT
,
3465 /* Flush the txcmpq */
3466 lpfc_sli_cancel_iocbs(phba
, &txcmplq
, IOSTAT_LOCAL_REJECT
,
3471 * lpfc_sli_brdready_s3 - Check for sli3 host ready status
3472 * @phba: Pointer to HBA context object.
3473 * @mask: Bit mask to be checked.
3475 * This function reads the host status register and compares
3476 * with the provided bit mask to check if HBA completed
3477 * the restart. This function will wait in a loop for the
3478 * HBA to complete restart. If the HBA does not restart within
3479 * 15 iterations, the function will reset the HBA again. The
3480 * function returns 1 when HBA fail to restart otherwise returns
3484 lpfc_sli_brdready_s3(struct lpfc_hba
*phba
, uint32_t mask
)
3490 /* Read the HBA Host Status Register */
3491 status
= readl(phba
->HSregaddr
);
3494 * Check status register every 100ms for 5 retries, then every
3495 * 500ms for 5, then every 2.5 sec for 5, then reset board and
3496 * every 2.5 sec for 4.
3497 * Break our of the loop if errors occurred during init.
3499 while (((status
& mask
) != mask
) &&
3500 !(status
& HS_FFERM
) &&
3512 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3513 lpfc_sli_brdrestart(phba
);
3515 /* Read the HBA Host Status Register */
3516 status
= readl(phba
->HSregaddr
);
3519 /* Check to see if any errors occurred during init */
3520 if ((status
& HS_FFERM
) || (i
>= 20)) {
3521 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
3522 "2751 Adapter failed to restart, "
3523 "status reg x%x, FW Data: A8 x%x AC x%x\n",
3525 readl(phba
->MBslimaddr
+ 0xa8),
3526 readl(phba
->MBslimaddr
+ 0xac));
3527 phba
->link_state
= LPFC_HBA_ERROR
;
3535 * lpfc_sli_brdready_s4 - Check for sli4 host ready status
3536 * @phba: Pointer to HBA context object.
3537 * @mask: Bit mask to be checked.
3539 * This function checks the host status register to check if HBA is
3540 * ready. This function will wait in a loop for the HBA to be ready
3541 * If the HBA is not ready , the function will will reset the HBA PCI
3542 * function again. The function returns 1 when HBA fail to be ready
3543 * otherwise returns zero.
3546 lpfc_sli_brdready_s4(struct lpfc_hba
*phba
, uint32_t mask
)
3551 /* Read the HBA Host Status Register */
3552 status
= lpfc_sli4_post_status_check(phba
);
3555 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
3556 lpfc_sli_brdrestart(phba
);
3557 status
= lpfc_sli4_post_status_check(phba
);
3560 /* Check to see if any errors occurred during init */
3562 phba
->link_state
= LPFC_HBA_ERROR
;
3565 phba
->sli4_hba
.intr_enable
= 0;
3571 * lpfc_sli_brdready - Wrapper func for checking the hba readyness
3572 * @phba: Pointer to HBA context object.
3573 * @mask: Bit mask to be checked.
3575 * This routine wraps the actual SLI3 or SLI4 hba readyness check routine
3576 * from the API jump table function pointer from the lpfc_hba struct.
3579 lpfc_sli_brdready(struct lpfc_hba
*phba
, uint32_t mask
)
3581 return phba
->lpfc_sli_brdready(phba
, mask
);
3584 #define BARRIER_TEST_PATTERN (0xdeadbeef)
3587 * lpfc_reset_barrier - Make HBA ready for HBA reset
3588 * @phba: Pointer to HBA context object.
3590 * This function is called before resetting an HBA. This
3591 * function requests HBA to quiesce DMAs before a reset.
3593 void lpfc_reset_barrier(struct lpfc_hba
*phba
)
3595 uint32_t __iomem
*resp_buf
;
3596 uint32_t __iomem
*mbox_buf
;
3597 volatile uint32_t mbox
;
3602 pci_read_config_byte(phba
->pcidev
, PCI_HEADER_TYPE
, &hdrtype
);
3603 if (hdrtype
!= 0x80 ||
3604 (FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != HELIOS_JEDEC_ID
&&
3605 FC_JEDEC_ID(phba
->vpd
.rev
.biuRev
) != THOR_JEDEC_ID
))
3609 * Tell the other part of the chip to suspend temporarily all
3612 resp_buf
= phba
->MBslimaddr
;
3614 /* Disable the error attention */
3615 hc_copy
= readl(phba
->HCregaddr
);
3616 writel((hc_copy
& ~HC_ERINT_ENA
), phba
->HCregaddr
);
3617 readl(phba
->HCregaddr
); /* flush */
3618 phba
->link_flag
|= LS_IGNORE_ERATT
;
3620 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3621 /* Clear Chip error bit */
3622 writel(HA_ERATT
, phba
->HAregaddr
);
3623 phba
->pport
->stopped
= 1;
3627 ((MAILBOX_t
*)&mbox
)->mbxCommand
= MBX_KILL_BOARD
;
3628 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_CHIP
;
3630 writel(BARRIER_TEST_PATTERN
, (resp_buf
+ 1));
3631 mbox_buf
= phba
->MBslimaddr
;
3632 writel(mbox
, mbox_buf
);
3635 readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
) && i
< 50; i
++)
3638 if (readl(resp_buf
+ 1) != ~(BARRIER_TEST_PATTERN
)) {
3639 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
||
3640 phba
->pport
->stopped
)
3646 ((MAILBOX_t
*)&mbox
)->mbxOwner
= OWN_HOST
;
3647 for (i
= 0; readl(resp_buf
) != mbox
&& i
< 500; i
++)
3652 while (!(readl(phba
->HAregaddr
) & HA_ERATT
) && ++i
< 500)
3655 if (readl(phba
->HAregaddr
) & HA_ERATT
) {
3656 writel(HA_ERATT
, phba
->HAregaddr
);
3657 phba
->pport
->stopped
= 1;
3661 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3662 writel(hc_copy
, phba
->HCregaddr
);
3663 readl(phba
->HCregaddr
); /* flush */
3667 * lpfc_sli_brdkill - Issue a kill_board mailbox command
3668 * @phba: Pointer to HBA context object.
3670 * This function issues a kill_board mailbox command and waits for
3671 * the error attention interrupt. This function is called for stopping
3672 * the firmware processing. The caller is not required to hold any
3673 * locks. This function calls lpfc_hba_down_post function to free
3674 * any pending commands after the kill. The function will return 1 when it
3675 * fails to kill the board else will return 0.
3678 lpfc_sli_brdkill(struct lpfc_hba
*phba
)
3680 struct lpfc_sli
*psli
;
3690 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3691 "0329 Kill HBA Data: x%x x%x\n",
3692 phba
->pport
->port_state
, psli
->sli_flag
);
3694 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
3698 /* Disable the error attention */
3699 spin_lock_irq(&phba
->hbalock
);
3700 status
= readl(phba
->HCregaddr
);
3701 status
&= ~HC_ERINT_ENA
;
3702 writel(status
, phba
->HCregaddr
);
3703 readl(phba
->HCregaddr
); /* flush */
3704 phba
->link_flag
|= LS_IGNORE_ERATT
;
3705 spin_unlock_irq(&phba
->hbalock
);
3707 lpfc_kill_board(phba
, pmb
);
3708 pmb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
3709 retval
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
3711 if (retval
!= MBX_SUCCESS
) {
3712 if (retval
!= MBX_BUSY
)
3713 mempool_free(pmb
, phba
->mbox_mem_pool
);
3714 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
3715 "2752 KILL_BOARD command failed retval %d\n",
3717 spin_lock_irq(&phba
->hbalock
);
3718 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3719 spin_unlock_irq(&phba
->hbalock
);
3723 spin_lock_irq(&phba
->hbalock
);
3724 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
3725 spin_unlock_irq(&phba
->hbalock
);
3727 mempool_free(pmb
, phba
->mbox_mem_pool
);
3729 /* There is no completion for a KILL_BOARD mbox cmd. Check for an error
3730 * attention every 100ms for 3 seconds. If we don't get ERATT after
3731 * 3 seconds we still set HBA_ERROR state because the status of the
3732 * board is now undefined.
3734 ha_copy
= readl(phba
->HAregaddr
);
3736 while ((i
++ < 30) && !(ha_copy
& HA_ERATT
)) {
3738 ha_copy
= readl(phba
->HAregaddr
);
3741 del_timer_sync(&psli
->mbox_tmo
);
3742 if (ha_copy
& HA_ERATT
) {
3743 writel(HA_ERATT
, phba
->HAregaddr
);
3744 phba
->pport
->stopped
= 1;
3746 spin_lock_irq(&phba
->hbalock
);
3747 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
3748 psli
->mbox_active
= NULL
;
3749 phba
->link_flag
&= ~LS_IGNORE_ERATT
;
3750 spin_unlock_irq(&phba
->hbalock
);
3752 lpfc_hba_down_post(phba
);
3753 phba
->link_state
= LPFC_HBA_ERROR
;
3755 return ha_copy
& HA_ERATT
? 0 : 1;
3759 * lpfc_sli_brdreset - Reset a sli-2 or sli-3 HBA
3760 * @phba: Pointer to HBA context object.
3762 * This function resets the HBA by writing HC_INITFF to the control
3763 * register. After the HBA resets, this function resets all the iocb ring
3764 * indices. This function disables PCI layer parity checking during
3766 * This function returns 0 always.
3767 * The caller is not required to hold any locks.
3770 lpfc_sli_brdreset(struct lpfc_hba
*phba
)
3772 struct lpfc_sli
*psli
;
3773 struct lpfc_sli_ring
*pring
;
3780 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3781 "0325 Reset HBA Data: x%x x%x\n",
3782 phba
->pport
->port_state
, psli
->sli_flag
);
3784 /* perform board reset */
3785 phba
->fc_eventTag
= 0;
3786 phba
->link_events
= 0;
3787 phba
->pport
->fc_myDID
= 0;
3788 phba
->pport
->fc_prevDID
= 0;
3790 /* Turn off parity checking and serr during the physical reset */
3791 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3792 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
,
3794 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3796 psli
->sli_flag
&= ~(LPFC_SLI_ACTIVE
| LPFC_PROCESS_LA
);
3798 /* Now toggle INITFF bit in the Host Control Register */
3799 writel(HC_INITFF
, phba
->HCregaddr
);
3801 readl(phba
->HCregaddr
); /* flush */
3802 writel(0, phba
->HCregaddr
);
3803 readl(phba
->HCregaddr
); /* flush */
3805 /* Restore PCI cmd register */
3806 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3808 /* Initialize relevant SLI info */
3809 for (i
= 0; i
< psli
->num_rings
; i
++) {
3810 pring
= &psli
->ring
[i
];
3813 pring
->next_cmdidx
= 0;
3814 pring
->local_getidx
= 0;
3816 pring
->missbufcnt
= 0;
3819 phba
->link_state
= LPFC_WARM_START
;
3824 * lpfc_sli4_brdreset - Reset a sli-4 HBA
3825 * @phba: Pointer to HBA context object.
3827 * This function resets a SLI4 HBA. This function disables PCI layer parity
3828 * checking during resets the device. The caller is not required to hold
3831 * This function returns 0 always.
3834 lpfc_sli4_brdreset(struct lpfc_hba
*phba
)
3836 struct lpfc_sli
*psli
= &phba
->sli
;
3841 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3842 "0295 Reset HBA Data: x%x x%x\n",
3843 phba
->pport
->port_state
, psli
->sli_flag
);
3845 /* perform board reset */
3846 phba
->fc_eventTag
= 0;
3847 phba
->link_events
= 0;
3848 phba
->pport
->fc_myDID
= 0;
3849 phba
->pport
->fc_prevDID
= 0;
3851 spin_lock_irq(&phba
->hbalock
);
3852 psli
->sli_flag
&= ~(LPFC_PROCESS_LA
);
3853 phba
->fcf
.fcf_flag
= 0;
3854 /* Clean up the child queue list for the CQs */
3855 list_del_init(&phba
->sli4_hba
.mbx_wq
->list
);
3856 list_del_init(&phba
->sli4_hba
.els_wq
->list
);
3857 list_del_init(&phba
->sli4_hba
.hdr_rq
->list
);
3858 list_del_init(&phba
->sli4_hba
.dat_rq
->list
);
3859 list_del_init(&phba
->sli4_hba
.mbx_cq
->list
);
3860 list_del_init(&phba
->sli4_hba
.els_cq
->list
);
3861 for (qindx
= 0; qindx
< phba
->cfg_fcp_wq_count
; qindx
++)
3862 list_del_init(&phba
->sli4_hba
.fcp_wq
[qindx
]->list
);
3863 for (qindx
= 0; qindx
< phba
->cfg_fcp_eq_count
; qindx
++)
3864 list_del_init(&phba
->sli4_hba
.fcp_cq
[qindx
]->list
);
3865 spin_unlock_irq(&phba
->hbalock
);
3867 /* Now physically reset the device */
3868 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
3869 "0389 Performing PCI function reset!\n");
3871 /* Turn off parity checking and serr during the physical reset */
3872 pci_read_config_word(phba
->pcidev
, PCI_COMMAND
, &cfg_value
);
3873 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, (cfg_value
&
3874 ~(PCI_COMMAND_PARITY
| PCI_COMMAND_SERR
)));
3876 /* Perform FCoE PCI function reset */
3877 lpfc_pci_function_reset(phba
);
3879 /* Restore PCI cmd register */
3880 pci_write_config_word(phba
->pcidev
, PCI_COMMAND
, cfg_value
);
3886 * lpfc_sli_brdrestart_s3 - Restart a sli-3 hba
3887 * @phba: Pointer to HBA context object.
3889 * This function is called in the SLI initialization code path to
3890 * restart the HBA. The caller is not required to hold any lock.
3891 * This function writes MBX_RESTART mailbox command to the SLIM and
3892 * resets the HBA. At the end of the function, it calls lpfc_hba_down_post
3893 * function to free any pending commands. The function enables
3894 * POST only during the first initialization. The function returns zero.
3895 * The function does not guarantee completion of MBX_RESTART mailbox
3896 * command before the return of this function.
3899 lpfc_sli_brdrestart_s3(struct lpfc_hba
*phba
)
3902 struct lpfc_sli
*psli
;
3903 volatile uint32_t word0
;
3904 void __iomem
*to_slim
;
3905 uint32_t hba_aer_enabled
;
3907 spin_lock_irq(&phba
->hbalock
);
3909 /* Take PCIe device Advanced Error Reporting (AER) state */
3910 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3915 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3916 "0337 Restart HBA Data: x%x x%x\n",
3917 phba
->pport
->port_state
, psli
->sli_flag
);
3920 mb
= (MAILBOX_t
*) &word0
;
3921 mb
->mbxCommand
= MBX_RESTART
;
3924 lpfc_reset_barrier(phba
);
3926 to_slim
= phba
->MBslimaddr
;
3927 writel(*(uint32_t *) mb
, to_slim
);
3928 readl(to_slim
); /* flush */
3930 /* Only skip post after fc_ffinit is completed */
3931 if (phba
->pport
->port_state
)
3932 word0
= 1; /* This is really setting up word1 */
3934 word0
= 0; /* This is really setting up word1 */
3935 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
3936 writel(*(uint32_t *) mb
, to_slim
);
3937 readl(to_slim
); /* flush */
3939 lpfc_sli_brdreset(phba
);
3940 phba
->pport
->stopped
= 0;
3941 phba
->link_state
= LPFC_INIT_START
;
3943 spin_unlock_irq(&phba
->hbalock
);
3945 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3946 psli
->stats_start
= get_seconds();
3948 /* Give the INITFF and Post time to settle. */
3951 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3952 if (hba_aer_enabled
)
3953 pci_disable_pcie_error_reporting(phba
->pcidev
);
3955 lpfc_hba_down_post(phba
);
3961 * lpfc_sli_brdrestart_s4 - Restart the sli-4 hba
3962 * @phba: Pointer to HBA context object.
3964 * This function is called in the SLI initialization code path to restart
3965 * a SLI4 HBA. The caller is not required to hold any lock.
3966 * At the end of the function, it calls lpfc_hba_down_post function to
3967 * free any pending commands.
3970 lpfc_sli_brdrestart_s4(struct lpfc_hba
*phba
)
3972 struct lpfc_sli
*psli
= &phba
->sli
;
3973 uint32_t hba_aer_enabled
;
3976 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
3977 "0296 Restart HBA Data: x%x x%x\n",
3978 phba
->pport
->port_state
, psli
->sli_flag
);
3980 /* Take PCIe device Advanced Error Reporting (AER) state */
3981 hba_aer_enabled
= phba
->hba_flag
& HBA_AER_ENABLED
;
3983 lpfc_sli4_brdreset(phba
);
3985 spin_lock_irq(&phba
->hbalock
);
3986 phba
->pport
->stopped
= 0;
3987 phba
->link_state
= LPFC_INIT_START
;
3989 spin_unlock_irq(&phba
->hbalock
);
3991 memset(&psli
->lnk_stat_offsets
, 0, sizeof(psli
->lnk_stat_offsets
));
3992 psli
->stats_start
= get_seconds();
3994 /* Reset HBA AER if it was enabled, note hba_flag was reset above */
3995 if (hba_aer_enabled
)
3996 pci_disable_pcie_error_reporting(phba
->pcidev
);
3998 lpfc_hba_down_post(phba
);
4004 * lpfc_sli_brdrestart - Wrapper func for restarting hba
4005 * @phba: Pointer to HBA context object.
4007 * This routine wraps the actual SLI3 or SLI4 hba restart routine from the
4008 * API jump table function pointer from the lpfc_hba struct.
4011 lpfc_sli_brdrestart(struct lpfc_hba
*phba
)
4013 return phba
->lpfc_sli_brdrestart(phba
);
4017 * lpfc_sli_chipset_init - Wait for the restart of the HBA after a restart
4018 * @phba: Pointer to HBA context object.
4020 * This function is called after a HBA restart to wait for successful
4021 * restart of the HBA. Successful restart of the HBA is indicated by
4022 * HS_FFRDY and HS_MBRDY bits. If the HBA fails to restart even after 15
4023 * iteration, the function will restart the HBA again. The function returns
4024 * zero if HBA successfully restarted else returns negative error code.
4027 lpfc_sli_chipset_init(struct lpfc_hba
*phba
)
4029 uint32_t status
, i
= 0;
4031 /* Read the HBA Host Status Register */
4032 status
= readl(phba
->HSregaddr
);
4034 /* Check status register to see what current state is */
4036 while ((status
& (HS_FFRDY
| HS_MBRDY
)) != (HS_FFRDY
| HS_MBRDY
)) {
4038 /* Check every 10ms for 10 retries, then every 100ms for 90
4039 * retries, then every 1 sec for 50 retires for a total of
4040 * ~60 seconds before reset the board again and check every
4041 * 1 sec for 50 retries. The up to 60 seconds before the
4042 * board ready is required by the Falcon FIPS zeroization
4043 * complete, and any reset the board in between shall cause
4044 * restart of zeroization, further delay the board ready.
4047 /* Adapter failed to init, timeout, status reg
4049 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4050 "0436 Adapter failed to init, "
4051 "timeout, status reg x%x, "
4052 "FW Data: A8 x%x AC x%x\n", status
,
4053 readl(phba
->MBslimaddr
+ 0xa8),
4054 readl(phba
->MBslimaddr
+ 0xac));
4055 phba
->link_state
= LPFC_HBA_ERROR
;
4059 /* Check to see if any errors occurred during init */
4060 if (status
& HS_FFERM
) {
4061 /* ERROR: During chipset initialization */
4062 /* Adapter failed to init, chipset, status reg
4064 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4065 "0437 Adapter failed to init, "
4066 "chipset, status reg x%x, "
4067 "FW Data: A8 x%x AC x%x\n", status
,
4068 readl(phba
->MBslimaddr
+ 0xa8),
4069 readl(phba
->MBslimaddr
+ 0xac));
4070 phba
->link_state
= LPFC_HBA_ERROR
;
4083 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4084 lpfc_sli_brdrestart(phba
);
4086 /* Read the HBA Host Status Register */
4087 status
= readl(phba
->HSregaddr
);
4090 /* Check to see if any errors occurred during init */
4091 if (status
& HS_FFERM
) {
4092 /* ERROR: During chipset initialization */
4093 /* Adapter failed to init, chipset, status reg <status> */
4094 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4095 "0438 Adapter failed to init, chipset, "
4097 "FW Data: A8 x%x AC x%x\n", status
,
4098 readl(phba
->MBslimaddr
+ 0xa8),
4099 readl(phba
->MBslimaddr
+ 0xac));
4100 phba
->link_state
= LPFC_HBA_ERROR
;
4104 /* Clear all interrupt enable conditions */
4105 writel(0, phba
->HCregaddr
);
4106 readl(phba
->HCregaddr
); /* flush */
4108 /* setup host attn register */
4109 writel(0xffffffff, phba
->HAregaddr
);
4110 readl(phba
->HAregaddr
); /* flush */
4115 * lpfc_sli_hbq_count - Get the number of HBQs to be configured
4117 * This function calculates and returns the number of HBQs required to be
4121 lpfc_sli_hbq_count(void)
4123 return ARRAY_SIZE(lpfc_hbq_defs
);
4127 * lpfc_sli_hbq_entry_count - Calculate total number of hbq entries
4129 * This function adds the number of hbq entries in every HBQ to get
4130 * the total number of hbq entries required for the HBA and returns
4134 lpfc_sli_hbq_entry_count(void)
4136 int hbq_count
= lpfc_sli_hbq_count();
4140 for (i
= 0; i
< hbq_count
; ++i
)
4141 count
+= lpfc_hbq_defs
[i
]->entry_count
;
4146 * lpfc_sli_hbq_size - Calculate memory required for all hbq entries
4148 * This function calculates amount of memory required for all hbq entries
4149 * to be configured and returns the total memory required.
4152 lpfc_sli_hbq_size(void)
4154 return lpfc_sli_hbq_entry_count() * sizeof(struct lpfc_hbq_entry
);
4158 * lpfc_sli_hbq_setup - configure and initialize HBQs
4159 * @phba: Pointer to HBA context object.
4161 * This function is called during the SLI initialization to configure
4162 * all the HBQs and post buffers to the HBQ. The caller is not
4163 * required to hold any locks. This function will return zero if successful
4164 * else it will return negative error code.
4167 lpfc_sli_hbq_setup(struct lpfc_hba
*phba
)
4169 int hbq_count
= lpfc_sli_hbq_count();
4173 uint32_t hbq_entry_index
;
4175 /* Get a Mailbox buffer to setup mailbox
4176 * commands for HBA initialization
4178 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4185 /* Initialize the struct lpfc_sli_hbq structure for each hbq */
4186 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4187 phba
->hbq_in_use
= 1;
4189 hbq_entry_index
= 0;
4190 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
) {
4191 phba
->hbqs
[hbqno
].next_hbqPutIdx
= 0;
4192 phba
->hbqs
[hbqno
].hbqPutIdx
= 0;
4193 phba
->hbqs
[hbqno
].local_hbqGetIdx
= 0;
4194 phba
->hbqs
[hbqno
].entry_count
=
4195 lpfc_hbq_defs
[hbqno
]->entry_count
;
4196 lpfc_config_hbq(phba
, hbqno
, lpfc_hbq_defs
[hbqno
],
4197 hbq_entry_index
, pmb
);
4198 hbq_entry_index
+= phba
->hbqs
[hbqno
].entry_count
;
4200 if (lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
) != MBX_SUCCESS
) {
4201 /* Adapter failed to init, mbxCmd <cmd> CFG_RING,
4202 mbxStatus <status>, ring <num> */
4204 lpfc_printf_log(phba
, KERN_ERR
,
4205 LOG_SLI
| LOG_VPORT
,
4206 "1805 Adapter failed to init. "
4207 "Data: x%x x%x x%x\n",
4209 pmbox
->mbxStatus
, hbqno
);
4211 phba
->link_state
= LPFC_HBA_ERROR
;
4212 mempool_free(pmb
, phba
->mbox_mem_pool
);
4216 phba
->hbq_count
= hbq_count
;
4218 mempool_free(pmb
, phba
->mbox_mem_pool
);
4220 /* Initially populate or replenish the HBQs */
4221 for (hbqno
= 0; hbqno
< hbq_count
; ++hbqno
)
4222 lpfc_sli_hbqbuf_init_hbqs(phba
, hbqno
);
4227 * lpfc_sli4_rb_setup - Initialize and post RBs to HBA
4228 * @phba: Pointer to HBA context object.
4230 * This function is called during the SLI initialization to configure
4231 * all the HBQs and post buffers to the HBQ. The caller is not
4232 * required to hold any locks. This function will return zero if successful
4233 * else it will return negative error code.
4236 lpfc_sli4_rb_setup(struct lpfc_hba
*phba
)
4238 phba
->hbq_in_use
= 1;
4239 phba
->hbqs
[0].entry_count
= lpfc_hbq_defs
[0]->entry_count
;
4240 phba
->hbq_count
= 1;
4241 /* Initially populate or replenish the HBQs */
4242 lpfc_sli_hbqbuf_init_hbqs(phba
, 0);
4247 * lpfc_sli_config_port - Issue config port mailbox command
4248 * @phba: Pointer to HBA context object.
4249 * @sli_mode: sli mode - 2/3
4251 * This function is called by the sli intialization code path
4252 * to issue config_port mailbox command. This function restarts the
4253 * HBA firmware and issues a config_port mailbox command to configure
4254 * the SLI interface in the sli mode specified by sli_mode
4255 * variable. The caller is not required to hold any locks.
4256 * The function returns 0 if successful, else returns negative error
4260 lpfc_sli_config_port(struct lpfc_hba
*phba
, int sli_mode
)
4263 uint32_t resetcount
= 0, rc
= 0, done
= 0;
4265 pmb
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4267 phba
->link_state
= LPFC_HBA_ERROR
;
4271 phba
->sli_rev
= sli_mode
;
4272 while (resetcount
< 2 && !done
) {
4273 spin_lock_irq(&phba
->hbalock
);
4274 phba
->sli
.sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
4275 spin_unlock_irq(&phba
->hbalock
);
4276 phba
->pport
->port_state
= LPFC_VPORT_UNKNOWN
;
4277 lpfc_sli_brdrestart(phba
);
4278 rc
= lpfc_sli_chipset_init(phba
);
4282 spin_lock_irq(&phba
->hbalock
);
4283 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
4284 spin_unlock_irq(&phba
->hbalock
);
4287 /* Call pre CONFIG_PORT mailbox command initialization. A
4288 * value of 0 means the call was successful. Any other
4289 * nonzero value is a failure, but if ERESTART is returned,
4290 * the driver may reset the HBA and try again.
4292 rc
= lpfc_config_port_prep(phba
);
4293 if (rc
== -ERESTART
) {
4294 phba
->link_state
= LPFC_LINK_UNKNOWN
;
4298 phba
->link_state
= LPFC_INIT_MBX_CMDS
;
4299 lpfc_config_port(phba
, pmb
);
4300 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
4301 phba
->sli3_options
&= ~(LPFC_SLI3_NPIV_ENABLED
|
4302 LPFC_SLI3_HBQ_ENABLED
|
4303 LPFC_SLI3_CRP_ENABLED
|
4304 LPFC_SLI3_BG_ENABLED
|
4305 LPFC_SLI3_DSS_ENABLED
);
4306 if (rc
!= MBX_SUCCESS
) {
4307 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4308 "0442 Adapter failed to init, mbxCmd x%x "
4309 "CONFIG_PORT, mbxStatus x%x Data: x%x\n",
4310 pmb
->u
.mb
.mbxCommand
, pmb
->u
.mb
.mbxStatus
, 0);
4311 spin_lock_irq(&phba
->hbalock
);
4312 phba
->sli
.sli_flag
&= ~LPFC_SLI_ACTIVE
;
4313 spin_unlock_irq(&phba
->hbalock
);
4316 /* Allow asynchronous mailbox command to go through */
4317 spin_lock_irq(&phba
->hbalock
);
4318 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4319 spin_unlock_irq(&phba
->hbalock
);
4325 goto do_prep_failed
;
4327 if (pmb
->u
.mb
.un
.varCfgPort
.sli_mode
== 3) {
4328 if (!pmb
->u
.mb
.un
.varCfgPort
.cMA
) {
4330 goto do_prep_failed
;
4332 if (phba
->max_vpi
&& pmb
->u
.mb
.un
.varCfgPort
.gmv
) {
4333 phba
->sli3_options
|= LPFC_SLI3_NPIV_ENABLED
;
4334 phba
->max_vpi
= pmb
->u
.mb
.un
.varCfgPort
.max_vpi
;
4335 phba
->max_vports
= (phba
->max_vpi
> phba
->max_vports
) ?
4336 phba
->max_vpi
: phba
->max_vports
;
4340 phba
->fips_level
= 0;
4341 phba
->fips_spec_rev
= 0;
4342 if (pmb
->u
.mb
.un
.varCfgPort
.gdss
) {
4343 phba
->sli3_options
|= LPFC_SLI3_DSS_ENABLED
;
4344 phba
->fips_level
= pmb
->u
.mb
.un
.varCfgPort
.fips_level
;
4345 phba
->fips_spec_rev
= pmb
->u
.mb
.un
.varCfgPort
.fips_rev
;
4346 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4347 "2850 Security Crypto Active. FIPS x%d "
4349 phba
->fips_level
, phba
->fips_spec_rev
);
4351 if (pmb
->u
.mb
.un
.varCfgPort
.sec_err
) {
4352 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4353 "2856 Config Port Security Crypto "
4355 pmb
->u
.mb
.un
.varCfgPort
.sec_err
);
4357 if (pmb
->u
.mb
.un
.varCfgPort
.gerbm
)
4358 phba
->sli3_options
|= LPFC_SLI3_HBQ_ENABLED
;
4359 if (pmb
->u
.mb
.un
.varCfgPort
.gcrp
)
4360 phba
->sli3_options
|= LPFC_SLI3_CRP_ENABLED
;
4362 phba
->hbq_get
= phba
->mbox
->us
.s3_pgp
.hbq_get
;
4363 phba
->port_gp
= phba
->mbox
->us
.s3_pgp
.port
;
4365 if (phba
->cfg_enable_bg
) {
4366 if (pmb
->u
.mb
.un
.varCfgPort
.gbg
)
4367 phba
->sli3_options
|= LPFC_SLI3_BG_ENABLED
;
4369 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4370 "0443 Adapter did not grant "
4374 phba
->hbq_get
= NULL
;
4375 phba
->port_gp
= phba
->mbox
->us
.s2
.port
;
4379 mempool_free(pmb
, phba
->mbox_mem_pool
);
4385 * lpfc_sli_hba_setup - SLI intialization function
4386 * @phba: Pointer to HBA context object.
4388 * This function is the main SLI intialization function. This function
4389 * is called by the HBA intialization code, HBA reset code and HBA
4390 * error attention handler code. Caller is not required to hold any
4391 * locks. This function issues config_port mailbox command to configure
4392 * the SLI, setup iocb rings and HBQ rings. In the end the function
4393 * calls the config_port_post function to issue init_link mailbox
4394 * command and to start the discovery. The function will return zero
4395 * if successful, else it will return negative error code.
4398 lpfc_sli_hba_setup(struct lpfc_hba
*phba
)
4403 switch (lpfc_sli_mode
) {
4405 if (phba
->cfg_enable_npiv
) {
4406 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4407 "1824 NPIV enabled: Override lpfc_sli_mode "
4408 "parameter (%d) to auto (0).\n",
4418 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4419 "1819 Unrecognized lpfc_sli_mode "
4420 "parameter: %d.\n", lpfc_sli_mode
);
4425 rc
= lpfc_sli_config_port(phba
, mode
);
4427 if (rc
&& lpfc_sli_mode
== 3)
4428 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
| LOG_VPORT
,
4429 "1820 Unable to select SLI-3. "
4430 "Not supported by adapter.\n");
4431 if (rc
&& mode
!= 2)
4432 rc
= lpfc_sli_config_port(phba
, 2);
4434 goto lpfc_sli_hba_setup_error
;
4436 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4437 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4438 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4440 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4441 "2709 This device supports "
4442 "Advanced Error Reporting (AER)\n");
4443 spin_lock_irq(&phba
->hbalock
);
4444 phba
->hba_flag
|= HBA_AER_ENABLED
;
4445 spin_unlock_irq(&phba
->hbalock
);
4447 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4448 "2708 This device does not support "
4449 "Advanced Error Reporting (AER)\n");
4450 phba
->cfg_aer_support
= 0;
4454 if (phba
->sli_rev
== 3) {
4455 phba
->iocb_cmd_size
= SLI3_IOCB_CMD_SIZE
;
4456 phba
->iocb_rsp_size
= SLI3_IOCB_RSP_SIZE
;
4458 phba
->iocb_cmd_size
= SLI2_IOCB_CMD_SIZE
;
4459 phba
->iocb_rsp_size
= SLI2_IOCB_RSP_SIZE
;
4460 phba
->sli3_options
= 0;
4463 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4464 "0444 Firmware in SLI %x mode. Max_vpi %d\n",
4465 phba
->sli_rev
, phba
->max_vpi
);
4466 rc
= lpfc_sli_ring_map(phba
);
4469 goto lpfc_sli_hba_setup_error
;
4472 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
4473 rc
= lpfc_sli_hbq_setup(phba
);
4475 goto lpfc_sli_hba_setup_error
;
4477 spin_lock_irq(&phba
->hbalock
);
4478 phba
->sli
.sli_flag
|= LPFC_PROCESS_LA
;
4479 spin_unlock_irq(&phba
->hbalock
);
4481 rc
= lpfc_config_port_post(phba
);
4483 goto lpfc_sli_hba_setup_error
;
4487 lpfc_sli_hba_setup_error
:
4488 phba
->link_state
= LPFC_HBA_ERROR
;
4489 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
4490 "0445 Firmware initialization failed\n");
4495 * lpfc_sli4_read_fcoe_params - Read fcoe params from conf region
4496 * @phba: Pointer to HBA context object.
4497 * @mboxq: mailbox pointer.
4498 * This function issue a dump mailbox command to read config region
4499 * 23 and parse the records in the region and populate driver
4503 lpfc_sli4_read_fcoe_params(struct lpfc_hba
*phba
,
4504 LPFC_MBOXQ_t
*mboxq
)
4506 struct lpfc_dmabuf
*mp
;
4507 struct lpfc_mqe
*mqe
;
4508 uint32_t data_length
;
4511 /* Program the default value of vlan_id and fc_map */
4512 phba
->valid_vlan
= 0;
4513 phba
->fc_map
[0] = LPFC_FCOE_FCF_MAP0
;
4514 phba
->fc_map
[1] = LPFC_FCOE_FCF_MAP1
;
4515 phba
->fc_map
[2] = LPFC_FCOE_FCF_MAP2
;
4517 mqe
= &mboxq
->u
.mqe
;
4518 if (lpfc_dump_fcoe_param(phba
, mboxq
))
4521 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4522 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4524 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4525 "(%d):2571 Mailbox cmd x%x Status x%x "
4526 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4527 "x%x x%x x%x x%x x%x x%x x%x x%x x%x "
4528 "CQ: x%x x%x x%x x%x\n",
4529 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4530 bf_get(lpfc_mqe_command
, mqe
),
4531 bf_get(lpfc_mqe_status
, mqe
),
4532 mqe
->un
.mb_words
[0], mqe
->un
.mb_words
[1],
4533 mqe
->un
.mb_words
[2], mqe
->un
.mb_words
[3],
4534 mqe
->un
.mb_words
[4], mqe
->un
.mb_words
[5],
4535 mqe
->un
.mb_words
[6], mqe
->un
.mb_words
[7],
4536 mqe
->un
.mb_words
[8], mqe
->un
.mb_words
[9],
4537 mqe
->un
.mb_words
[10], mqe
->un
.mb_words
[11],
4538 mqe
->un
.mb_words
[12], mqe
->un
.mb_words
[13],
4539 mqe
->un
.mb_words
[14], mqe
->un
.mb_words
[15],
4540 mqe
->un
.mb_words
[16], mqe
->un
.mb_words
[50],
4542 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
4543 mboxq
->mcqe
.trailer
);
4546 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4550 data_length
= mqe
->un
.mb_words
[5];
4551 if (data_length
> DMP_RGN23_SIZE
) {
4552 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4557 lpfc_parse_fcoe_conf(phba
, mp
->virt
, data_length
);
4558 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4564 * lpfc_sli4_read_rev - Issue READ_REV and collect vpd data
4565 * @phba: pointer to lpfc hba data structure.
4566 * @mboxq: pointer to the LPFC_MBOXQ_t structure.
4567 * @vpd: pointer to the memory to hold resulting port vpd data.
4568 * @vpd_size: On input, the number of bytes allocated to @vpd.
4569 * On output, the number of data bytes in @vpd.
4571 * This routine executes a READ_REV SLI4 mailbox command. In
4572 * addition, this routine gets the port vpd data.
4576 * -ENOMEM - could not allocated memory.
4579 lpfc_sli4_read_rev(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
4580 uint8_t *vpd
, uint32_t *vpd_size
)
4584 struct lpfc_dmabuf
*dmabuf
;
4585 struct lpfc_mqe
*mqe
;
4587 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
4592 * Get a DMA buffer for the vpd data resulting from the READ_REV
4595 dma_size
= *vpd_size
;
4596 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
4600 if (!dmabuf
->virt
) {
4604 memset(dmabuf
->virt
, 0, dma_size
);
4607 * The SLI4 implementation of READ_REV conflicts at word1,
4608 * bits 31:16 and SLI4 adds vpd functionality not present
4609 * in SLI3. This code corrects the conflicts.
4611 lpfc_read_rev(phba
, mboxq
);
4612 mqe
= &mboxq
->u
.mqe
;
4613 mqe
->un
.read_rev
.vpd_paddr_high
= putPaddrHigh(dmabuf
->phys
);
4614 mqe
->un
.read_rev
.vpd_paddr_low
= putPaddrLow(dmabuf
->phys
);
4615 mqe
->un
.read_rev
.word1
&= 0x0000FFFF;
4616 bf_set(lpfc_mbx_rd_rev_vpd
, &mqe
->un
.read_rev
, 1);
4617 bf_set(lpfc_mbx_rd_rev_avail_len
, &mqe
->un
.read_rev
, dma_size
);
4619 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4621 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4622 dmabuf
->virt
, dmabuf
->phys
);
4628 * The available vpd length cannot be bigger than the
4629 * DMA buffer passed to the port. Catch the less than
4630 * case and update the caller's size.
4632 if (mqe
->un
.read_rev
.avail_vpd_len
< *vpd_size
)
4633 *vpd_size
= mqe
->un
.read_rev
.avail_vpd_len
;
4635 memcpy(vpd
, dmabuf
->virt
, *vpd_size
);
4637 dma_free_coherent(&phba
->pcidev
->dev
, dma_size
,
4638 dmabuf
->virt
, dmabuf
->phys
);
4644 * lpfc_sli4_arm_cqeq_intr - Arm sli-4 device completion and event queues
4645 * @phba: pointer to lpfc hba data structure.
4647 * This routine is called to explicitly arm the SLI4 device's completion and
4651 lpfc_sli4_arm_cqeq_intr(struct lpfc_hba
*phba
)
4655 lpfc_sli4_cq_release(phba
->sli4_hba
.mbx_cq
, LPFC_QUEUE_REARM
);
4656 lpfc_sli4_cq_release(phba
->sli4_hba
.els_cq
, LPFC_QUEUE_REARM
);
4657 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4658 lpfc_sli4_cq_release(phba
->sli4_hba
.fcp_cq
[fcp_eqidx
],
4660 lpfc_sli4_eq_release(phba
->sli4_hba
.sp_eq
, LPFC_QUEUE_REARM
);
4661 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++)
4662 lpfc_sli4_eq_release(phba
->sli4_hba
.fp_eq
[fcp_eqidx
],
4667 * lpfc_sli4_hba_setup - SLI4 device intialization PCI function
4668 * @phba: Pointer to HBA context object.
4670 * This function is the main SLI4 device intialization PCI function. This
4671 * function is called by the HBA intialization code, HBA reset code and
4672 * HBA error attention handler code. Caller is not required to hold any
4676 lpfc_sli4_hba_setup(struct lpfc_hba
*phba
)
4679 LPFC_MBOXQ_t
*mboxq
;
4680 struct lpfc_mqe
*mqe
;
4683 uint32_t ftr_rsp
= 0;
4684 struct Scsi_Host
*shost
= lpfc_shost_from_vport(phba
->pport
);
4685 struct lpfc_vport
*vport
= phba
->pport
;
4686 struct lpfc_dmabuf
*mp
;
4689 * TODO: Why does this routine execute these task in a different
4692 /* Perform a PCI function reset to start from clean */
4693 rc
= lpfc_pci_function_reset(phba
);
4697 /* Check the HBA Host Status Register for readyness */
4698 rc
= lpfc_sli4_post_status_check(phba
);
4702 spin_lock_irq(&phba
->hbalock
);
4703 phba
->sli
.sli_flag
|= LPFC_SLI_ACTIVE
;
4704 spin_unlock_irq(&phba
->hbalock
);
4708 * Allocate a single mailbox container for initializing the
4711 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
4716 * Continue initialization with default values even if driver failed
4717 * to read FCoE param config regions
4719 if (lpfc_sli4_read_fcoe_params(phba
, mboxq
))
4720 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_INIT
,
4721 "2570 Failed to read FCoE parameters\n");
4723 /* Issue READ_REV to collect vpd and FW information. */
4724 vpd_size
= SLI4_PAGE_SIZE
;
4725 vpd
= kzalloc(vpd_size
, GFP_KERNEL
);
4731 rc
= lpfc_sli4_read_rev(phba
, mboxq
, vpd
, &vpd_size
);
4736 mqe
= &mboxq
->u
.mqe
;
4737 phba
->sli_rev
= bf_get(lpfc_mbx_rd_rev_sli_lvl
, &mqe
->un
.read_rev
);
4738 if (bf_get(lpfc_mbx_rd_rev_fcoe
, &mqe
->un
.read_rev
))
4739 phba
->hba_flag
|= HBA_FCOE_MODE
;
4741 phba
->hba_flag
&= ~HBA_FCOE_MODE
;
4743 if (bf_get(lpfc_mbx_rd_rev_cee_ver
, &mqe
->un
.read_rev
) ==
4745 phba
->hba_flag
|= HBA_FIP_SUPPORT
;
4747 phba
->hba_flag
&= ~HBA_FIP_SUPPORT
;
4749 if (phba
->sli_rev
!= LPFC_SLI_REV4
||
4750 !(phba
->hba_flag
& HBA_FCOE_MODE
)) {
4751 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4752 "0376 READ_REV Error. SLI Level %d "
4753 "FCoE enabled %d\n",
4754 phba
->sli_rev
, phba
->hba_flag
& HBA_FCOE_MODE
);
4760 * Evaluate the read rev and vpd data. Populate the driver
4761 * state with the results. If this routine fails, the failure
4762 * is not fatal as the driver will use generic values.
4764 rc
= lpfc_parse_vpd(phba
, vpd
, vpd_size
);
4765 if (unlikely(!rc
)) {
4766 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4767 "0377 Error %d parsing vpd. "
4768 "Using defaults.\n", rc
);
4773 /* Save information as VPD data */
4774 phba
->vpd
.rev
.biuRev
= mqe
->un
.read_rev
.first_hw_rev
;
4775 phba
->vpd
.rev
.smRev
= mqe
->un
.read_rev
.second_hw_rev
;
4776 phba
->vpd
.rev
.endecRev
= mqe
->un
.read_rev
.third_hw_rev
;
4777 phba
->vpd
.rev
.fcphHigh
= bf_get(lpfc_mbx_rd_rev_fcph_high
,
4779 phba
->vpd
.rev
.fcphLow
= bf_get(lpfc_mbx_rd_rev_fcph_low
,
4781 phba
->vpd
.rev
.feaLevelHigh
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_high
,
4783 phba
->vpd
.rev
.feaLevelLow
= bf_get(lpfc_mbx_rd_rev_ftr_lvl_low
,
4785 phba
->vpd
.rev
.sli1FwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4786 memcpy(phba
->vpd
.rev
.sli1FwName
, mqe
->un
.read_rev
.fw_name
, 16);
4787 phba
->vpd
.rev
.sli2FwRev
= mqe
->un
.read_rev
.ulp_fw_id_rev
;
4788 memcpy(phba
->vpd
.rev
.sli2FwName
, mqe
->un
.read_rev
.ulp_fw_name
, 16);
4789 phba
->vpd
.rev
.opFwRev
= mqe
->un
.read_rev
.fw_id_rev
;
4790 memcpy(phba
->vpd
.rev
.opFwName
, mqe
->un
.read_rev
.fw_name
, 16);
4791 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
4792 "(%d):0380 READ_REV Status x%x "
4793 "fw_rev:%s fcphHi:%x fcphLo:%x flHi:%x flLo:%x\n",
4794 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
4795 bf_get(lpfc_mqe_status
, mqe
),
4796 phba
->vpd
.rev
.opFwName
,
4797 phba
->vpd
.rev
.fcphHigh
, phba
->vpd
.rev
.fcphLow
,
4798 phba
->vpd
.rev
.feaLevelHigh
, phba
->vpd
.rev
.feaLevelLow
);
4801 * Discover the port's supported feature set and match it against the
4804 lpfc_request_features(phba
, mboxq
);
4805 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4812 * The port must support FCP initiator mode as this is the
4813 * only mode running in the host.
4815 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_fcpi
, &mqe
->un
.req_ftrs
))) {
4816 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4817 "0378 No support for fcpi mode.\n");
4822 * If the port cannot support the host's requested features
4823 * then turn off the global config parameters to disable the
4824 * feature in the driver. This is not a fatal error.
4826 if ((phba
->cfg_enable_bg
) &&
4827 !(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4830 if (phba
->max_vpi
&& phba
->cfg_enable_npiv
&&
4831 !(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4835 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4836 "0379 Feature Mismatch Data: x%08x %08x "
4837 "x%x x%x x%x\n", mqe
->un
.req_ftrs
.word2
,
4838 mqe
->un
.req_ftrs
.word3
, phba
->cfg_enable_bg
,
4839 phba
->cfg_enable_npiv
, phba
->max_vpi
);
4840 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_dif
, &mqe
->un
.req_ftrs
)))
4841 phba
->cfg_enable_bg
= 0;
4842 if (!(bf_get(lpfc_mbx_rq_ftr_rsp_npiv
, &mqe
->un
.req_ftrs
)))
4843 phba
->cfg_enable_npiv
= 0;
4846 /* These SLI3 features are assumed in SLI4 */
4847 spin_lock_irq(&phba
->hbalock
);
4848 phba
->sli3_options
|= (LPFC_SLI3_NPIV_ENABLED
| LPFC_SLI3_HBQ_ENABLED
);
4849 spin_unlock_irq(&phba
->hbalock
);
4851 /* Read the port's service parameters. */
4852 rc
= lpfc_read_sparam(phba
, mboxq
, vport
->vpi
);
4854 phba
->link_state
= LPFC_HBA_ERROR
;
4859 mboxq
->vport
= vport
;
4860 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4861 mp
= (struct lpfc_dmabuf
*) mboxq
->context1
;
4862 if (rc
== MBX_SUCCESS
) {
4863 memcpy(&vport
->fc_sparam
, mp
->virt
, sizeof(struct serv_parm
));
4868 * This memory was allocated by the lpfc_read_sparam routine. Release
4869 * it to the mbuf pool.
4871 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
4873 mboxq
->context1
= NULL
;
4875 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4876 "0382 READ_SPARAM command failed "
4877 "status %d, mbxStatus x%x\n",
4878 rc
, bf_get(lpfc_mqe_status
, mqe
));
4879 phba
->link_state
= LPFC_HBA_ERROR
;
4884 if (phba
->cfg_soft_wwnn
)
4885 u64_to_wwn(phba
->cfg_soft_wwnn
,
4886 vport
->fc_sparam
.nodeName
.u
.wwn
);
4887 if (phba
->cfg_soft_wwpn
)
4888 u64_to_wwn(phba
->cfg_soft_wwpn
,
4889 vport
->fc_sparam
.portName
.u
.wwn
);
4890 memcpy(&vport
->fc_nodename
, &vport
->fc_sparam
.nodeName
,
4891 sizeof(struct lpfc_name
));
4892 memcpy(&vport
->fc_portname
, &vport
->fc_sparam
.portName
,
4893 sizeof(struct lpfc_name
));
4895 /* Update the fc_host data structures with new wwn. */
4896 fc_host_node_name(shost
) = wwn_to_u64(vport
->fc_nodename
.u
.wwn
);
4897 fc_host_port_name(shost
) = wwn_to_u64(vport
->fc_portname
.u
.wwn
);
4899 /* Register SGL pool to the device using non-embedded mailbox command */
4900 rc
= lpfc_sli4_post_sgl_list(phba
);
4902 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4903 "0582 Error %d during sgl post operation\n",
4909 /* Register SCSI SGL pool to the device */
4910 rc
= lpfc_sli4_repost_scsi_sgl_list(phba
);
4912 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
4913 "0383 Error %d during scsi sgl post "
4915 /* Some Scsi buffers were moved to the abort scsi list */
4916 /* A pci function reset will repost them */
4921 /* Post the rpi header region to the device. */
4922 rc
= lpfc_sli4_post_all_rpi_hdrs(phba
);
4924 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4925 "0393 Error %d during rpi post operation\n",
4931 /* Set up all the queues to the device */
4932 rc
= lpfc_sli4_queue_setup(phba
);
4934 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
4935 "0381 Error %d during queue setup.\n ", rc
);
4936 goto out_stop_timers
;
4939 /* Arm the CQs and then EQs on device */
4940 lpfc_sli4_arm_cqeq_intr(phba
);
4942 /* Indicate device interrupt mode */
4943 phba
->sli4_hba
.intr_enable
= 1;
4945 /* Allow asynchronous mailbox command to go through */
4946 spin_lock_irq(&phba
->hbalock
);
4947 phba
->sli
.sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
4948 spin_unlock_irq(&phba
->hbalock
);
4950 /* Post receive buffers to the device */
4951 lpfc_sli4_rb_setup(phba
);
4953 /* Reset HBA FCF states after HBA reset */
4954 phba
->fcf
.fcf_flag
= 0;
4955 phba
->fcf
.current_rec
.flag
= 0;
4957 /* Start the ELS watchdog timer */
4958 mod_timer(&vport
->els_tmofunc
,
4959 jiffies
+ HZ
* (phba
->fc_ratov
* 2));
4961 /* Start heart beat timer */
4962 mod_timer(&phba
->hb_tmofunc
,
4963 jiffies
+ HZ
* LPFC_HB_MBOX_INTERVAL
);
4964 phba
->hb_outstanding
= 0;
4965 phba
->last_completion_time
= jiffies
;
4967 /* Start error attention (ERATT) polling timer */
4968 mod_timer(&phba
->eratt_poll
, jiffies
+ HZ
* LPFC_ERATT_POLL_INTERVAL
);
4970 /* Enable PCIe device Advanced Error Reporting (AER) if configured */
4971 if (phba
->cfg_aer_support
== 1 && !(phba
->hba_flag
& HBA_AER_ENABLED
)) {
4972 rc
= pci_enable_pcie_error_reporting(phba
->pcidev
);
4974 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4975 "2829 This device supports "
4976 "Advanced Error Reporting (AER)\n");
4977 spin_lock_irq(&phba
->hbalock
);
4978 phba
->hba_flag
|= HBA_AER_ENABLED
;
4979 spin_unlock_irq(&phba
->hbalock
);
4981 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
4982 "2830 This device does not support "
4983 "Advanced Error Reporting (AER)\n");
4984 phba
->cfg_aer_support
= 0;
4988 if (!(phba
->hba_flag
& HBA_FCOE_MODE
)) {
4990 * The FC Port needs to register FCFI (index 0)
4992 lpfc_reg_fcfi(phba
, mboxq
);
4993 mboxq
->vport
= phba
->pport
;
4994 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
4995 if (rc
== MBX_SUCCESS
)
4998 goto out_unset_queue
;
5001 * The port is ready, set the host's link state to LINK_DOWN
5002 * in preparation for link interrupts.
5004 spin_lock_irq(&phba
->hbalock
);
5005 phba
->link_state
= LPFC_LINK_DOWN
;
5006 spin_unlock_irq(&phba
->hbalock
);
5007 rc
= phba
->lpfc_hba_init_link(phba
, MBX_NOWAIT
);
5009 /* Unset all the queues set up in this routine when error out */
5011 lpfc_sli4_queue_unset(phba
);
5014 lpfc_stop_hba_timers(phba
);
5016 mempool_free(mboxq
, phba
->mbox_mem_pool
);
5021 * lpfc_mbox_timeout - Timeout call back function for mbox timer
5022 * @ptr: context object - pointer to hba structure.
5024 * This is the callback function for mailbox timer. The mailbox
5025 * timer is armed when a new mailbox command is issued and the timer
5026 * is deleted when the mailbox complete. The function is called by
5027 * the kernel timer code when a mailbox does not complete within
5028 * expected time. This function wakes up the worker thread to
5029 * process the mailbox timeout and returns. All the processing is
5030 * done by the worker thread function lpfc_mbox_timeout_handler.
5033 lpfc_mbox_timeout(unsigned long ptr
)
5035 struct lpfc_hba
*phba
= (struct lpfc_hba
*) ptr
;
5036 unsigned long iflag
;
5037 uint32_t tmo_posted
;
5039 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflag
);
5040 tmo_posted
= phba
->pport
->work_port_events
& WORKER_MBOX_TMO
;
5042 phba
->pport
->work_port_events
|= WORKER_MBOX_TMO
;
5043 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflag
);
5046 lpfc_worker_wake_up(phba
);
5052 * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
5053 * @phba: Pointer to HBA context object.
5055 * This function is called from worker thread when a mailbox command times out.
5056 * The caller is not required to hold any locks. This function will reset the
5057 * HBA and recover all the pending commands.
5060 lpfc_mbox_timeout_handler(struct lpfc_hba
*phba
)
5062 LPFC_MBOXQ_t
*pmbox
= phba
->sli
.mbox_active
;
5063 MAILBOX_t
*mb
= &pmbox
->u
.mb
;
5064 struct lpfc_sli
*psli
= &phba
->sli
;
5065 struct lpfc_sli_ring
*pring
;
5067 /* Check the pmbox pointer first. There is a race condition
5068 * between the mbox timeout handler getting executed in the
5069 * worklist and the mailbox actually completing. When this
5070 * race condition occurs, the mbox_active will be NULL.
5072 spin_lock_irq(&phba
->hbalock
);
5073 if (pmbox
== NULL
) {
5074 lpfc_printf_log(phba
, KERN_WARNING
,
5076 "0353 Active Mailbox cleared - mailbox timeout "
5078 spin_unlock_irq(&phba
->hbalock
);
5082 /* Mbox cmd <mbxCommand> timeout */
5083 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5084 "0310 Mailbox command x%x timeout Data: x%x x%x x%p\n",
5086 phba
->pport
->port_state
,
5088 phba
->sli
.mbox_active
);
5089 spin_unlock_irq(&phba
->hbalock
);
5091 /* Setting state unknown so lpfc_sli_abort_iocb_ring
5092 * would get IOCB_ERROR from lpfc_sli_issue_iocb, allowing
5093 * it to fail all oustanding SCSI IO.
5095 spin_lock_irq(&phba
->pport
->work_port_lock
);
5096 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
5097 spin_unlock_irq(&phba
->pport
->work_port_lock
);
5098 spin_lock_irq(&phba
->hbalock
);
5099 phba
->link_state
= LPFC_LINK_UNKNOWN
;
5100 psli
->sli_flag
&= ~LPFC_SLI_ACTIVE
;
5101 spin_unlock_irq(&phba
->hbalock
);
5103 pring
= &psli
->ring
[psli
->fcp_ring
];
5104 lpfc_sli_abort_iocb_ring(phba
, pring
);
5106 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5107 "0345 Resetting board due to mailbox timeout\n");
5109 /* Reset the HBA device */
5110 lpfc_reset_hba(phba
);
5114 * lpfc_sli_issue_mbox_s3 - Issue an SLI3 mailbox command to firmware
5115 * @phba: Pointer to HBA context object.
5116 * @pmbox: Pointer to mailbox object.
5117 * @flag: Flag indicating how the mailbox need to be processed.
5119 * This function is called by discovery code and HBA management code
5120 * to submit a mailbox command to firmware with SLI-3 interface spec. This
5121 * function gets the hbalock to protect the data structures.
5122 * The mailbox command can be submitted in polling mode, in which case
5123 * this function will wait in a polling loop for the completion of the
5125 * If the mailbox is submitted in no_wait mode (not polling) the
5126 * function will submit the command and returns immediately without waiting
5127 * for the mailbox completion. The no_wait is supported only when HBA
5128 * is in SLI2/SLI3 mode - interrupts are enabled.
5129 * The SLI interface allows only one mailbox pending at a time. If the
5130 * mailbox is issued in polling mode and there is already a mailbox
5131 * pending, then the function will return an error. If the mailbox is issued
5132 * in NO_WAIT mode and there is a mailbox pending already, the function
5133 * will return MBX_BUSY after queuing the mailbox into mailbox queue.
5134 * The sli layer owns the mailbox object until the completion of mailbox
5135 * command if this function return MBX_BUSY or MBX_SUCCESS. For all other
5136 * return codes the caller owns the mailbox command after the return of
5140 lpfc_sli_issue_mbox_s3(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
,
5144 struct lpfc_sli
*psli
= &phba
->sli
;
5145 uint32_t status
, evtctr
;
5148 unsigned long timeout
;
5149 unsigned long drvr_flag
= 0;
5150 uint32_t word0
, ldata
;
5151 void __iomem
*to_slim
;
5152 int processing_queue
= 0;
5154 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5156 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5157 /* processing mbox queue from intr_handler */
5158 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5159 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5162 processing_queue
= 1;
5163 pmbox
= lpfc_mbox_get(phba
);
5165 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5170 if (pmbox
->mbox_cmpl
&& pmbox
->mbox_cmpl
!= lpfc_sli_def_mbox_cmpl
&&
5171 pmbox
->mbox_cmpl
!= lpfc_sli_wake_mbox_wait
) {
5173 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5174 lpfc_printf_log(phba
, KERN_ERR
,
5175 LOG_MBOX
| LOG_VPORT
,
5176 "1806 Mbox x%x failed. No vport\n",
5177 pmbox
->u
.mb
.mbxCommand
);
5179 goto out_not_finished
;
5183 /* If the PCI channel is in offline state, do not post mbox. */
5184 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
5185 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5186 goto out_not_finished
;
5189 /* If HBA has a deferred error attention, fail the iocb. */
5190 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
5191 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5192 goto out_not_finished
;
5198 status
= MBX_SUCCESS
;
5200 if (phba
->link_state
== LPFC_HBA_ERROR
) {
5201 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5203 /* Mbox command <mbxCommand> cannot issue */
5204 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5205 "(%d):0311 Mailbox command x%x cannot "
5206 "issue Data: x%x x%x\n",
5207 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5208 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
5209 goto out_not_finished
;
5212 if (mb
->mbxCommand
!= MBX_KILL_BOARD
&& flag
& MBX_NOWAIT
&&
5213 !(readl(phba
->HCregaddr
) & HC_MBINT_ENA
)) {
5214 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5215 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5216 "(%d):2528 Mailbox command x%x cannot "
5217 "issue Data: x%x x%x\n",
5218 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5219 pmbox
->u
.mb
.mbxCommand
, psli
->sli_flag
, flag
);
5220 goto out_not_finished
;
5223 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5224 /* Polling for a mbox command when another one is already active
5225 * is not allowed in SLI. Also, the driver must have established
5226 * SLI2 mode to queue and process multiple mbox commands.
5229 if (flag
& MBX_POLL
) {
5230 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5232 /* Mbox command <mbxCommand> cannot issue */
5233 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5234 "(%d):2529 Mailbox command x%x "
5235 "cannot issue Data: x%x x%x\n",
5236 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5237 pmbox
->u
.mb
.mbxCommand
,
5238 psli
->sli_flag
, flag
);
5239 goto out_not_finished
;
5242 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
)) {
5243 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5244 /* Mbox command <mbxCommand> cannot issue */
5245 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5246 "(%d):2530 Mailbox command x%x "
5247 "cannot issue Data: x%x x%x\n",
5248 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5249 pmbox
->u
.mb
.mbxCommand
,
5250 psli
->sli_flag
, flag
);
5251 goto out_not_finished
;
5254 /* Another mailbox command is still being processed, queue this
5255 * command to be processed later.
5257 lpfc_mbox_put(phba
, pmbox
);
5259 /* Mbox cmd issue - BUSY */
5260 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5261 "(%d):0308 Mbox cmd issue - BUSY Data: "
5262 "x%x x%x x%x x%x\n",
5263 pmbox
->vport
? pmbox
->vport
->vpi
: 0xffffff,
5264 mb
->mbxCommand
, phba
->pport
->port_state
,
5265 psli
->sli_flag
, flag
);
5267 psli
->slistat
.mbox_busy
++;
5268 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5271 lpfc_debugfs_disc_trc(pmbox
->vport
,
5272 LPFC_DISC_TRC_MBOX_VPORT
,
5273 "MBOX Bsy vport: cmd:x%x mb:x%x x%x",
5274 (uint32_t)mb
->mbxCommand
,
5275 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5278 lpfc_debugfs_disc_trc(phba
->pport
,
5280 "MBOX Bsy: cmd:x%x mb:x%x x%x",
5281 (uint32_t)mb
->mbxCommand
,
5282 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5288 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5290 /* If we are not polling, we MUST be in SLI2 mode */
5291 if (flag
!= MBX_POLL
) {
5292 if (!(psli
->sli_flag
& LPFC_SLI_ACTIVE
) &&
5293 (mb
->mbxCommand
!= MBX_KILL_BOARD
)) {
5294 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5295 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5296 /* Mbox command <mbxCommand> cannot issue */
5297 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5298 "(%d):2531 Mailbox command x%x "
5299 "cannot issue Data: x%x x%x\n",
5300 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5301 pmbox
->u
.mb
.mbxCommand
,
5302 psli
->sli_flag
, flag
);
5303 goto out_not_finished
;
5305 /* timeout active mbox command */
5306 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5307 (HZ
* lpfc_mbox_tmo_val(phba
, mb
->mbxCommand
))));
5310 /* Mailbox cmd <cmd> issue */
5311 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5312 "(%d):0309 Mailbox cmd x%x issue Data: x%x x%x "
5314 pmbox
->vport
? pmbox
->vport
->vpi
: 0,
5315 mb
->mbxCommand
, phba
->pport
->port_state
,
5316 psli
->sli_flag
, flag
);
5318 if (mb
->mbxCommand
!= MBX_HEARTBEAT
) {
5320 lpfc_debugfs_disc_trc(pmbox
->vport
,
5321 LPFC_DISC_TRC_MBOX_VPORT
,
5322 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5323 (uint32_t)mb
->mbxCommand
,
5324 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5327 lpfc_debugfs_disc_trc(phba
->pport
,
5329 "MBOX Send: cmd:x%x mb:x%x x%x",
5330 (uint32_t)mb
->mbxCommand
,
5331 mb
->un
.varWords
[0], mb
->un
.varWords
[1]);
5335 psli
->slistat
.mbox_cmd
++;
5336 evtctr
= psli
->slistat
.mbox_event
;
5338 /* next set own bit for the adapter and copy over command word */
5339 mb
->mbxOwner
= OWN_CHIP
;
5341 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5342 /* Populate mbox extension offset word. */
5343 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
) {
5344 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
5345 = (uint8_t *)phba
->mbox_ext
5346 - (uint8_t *)phba
->mbox
;
5349 /* Copy the mailbox extension data */
5350 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
5351 lpfc_sli_pcimem_bcopy(pmbox
->context2
,
5352 (uint8_t *)phba
->mbox_ext
,
5353 pmbox
->in_ext_byte_len
);
5355 /* Copy command data to host SLIM area */
5356 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
5358 /* Populate mbox extension offset word. */
5359 if (pmbox
->in_ext_byte_len
|| pmbox
->out_ext_byte_len
)
5360 *(((uint32_t *)mb
) + pmbox
->mbox_offset_word
)
5361 = MAILBOX_HBA_EXT_OFFSET
;
5363 /* Copy the mailbox extension data */
5364 if (pmbox
->in_ext_byte_len
&& pmbox
->context2
) {
5365 lpfc_memcpy_to_slim(phba
->MBslimaddr
+
5366 MAILBOX_HBA_EXT_OFFSET
,
5367 pmbox
->context2
, pmbox
->in_ext_byte_len
);
5370 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5371 /* copy command data into host mbox for cmpl */
5372 lpfc_sli_pcimem_bcopy(mb
, phba
->mbox
, MAILBOX_CMD_SIZE
);
5375 /* First copy mbox command data to HBA SLIM, skip past first
5377 to_slim
= phba
->MBslimaddr
+ sizeof (uint32_t);
5378 lpfc_memcpy_to_slim(to_slim
, &mb
->un
.varWords
[0],
5379 MAILBOX_CMD_SIZE
- sizeof (uint32_t));
5381 /* Next copy over first word, with mbxOwner set */
5382 ldata
= *((uint32_t *)mb
);
5383 to_slim
= phba
->MBslimaddr
;
5384 writel(ldata
, to_slim
);
5385 readl(to_slim
); /* flush */
5387 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5388 /* switch over to host mailbox */
5389 psli
->sli_flag
|= LPFC_SLI_ACTIVE
;
5397 /* Set up reference to mailbox command */
5398 psli
->mbox_active
= pmbox
;
5399 /* Interrupt board to do it */
5400 writel(CA_MBATT
, phba
->CAregaddr
);
5401 readl(phba
->CAregaddr
); /* flush */
5402 /* Don't wait for it to finish, just return */
5406 /* Set up null reference to mailbox command */
5407 psli
->mbox_active
= NULL
;
5408 /* Interrupt board to do it */
5409 writel(CA_MBATT
, phba
->CAregaddr
);
5410 readl(phba
->CAregaddr
); /* flush */
5412 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5413 /* First read mbox status word */
5414 word0
= *((uint32_t *)phba
->mbox
);
5415 word0
= le32_to_cpu(word0
);
5417 /* First read mbox status word */
5418 word0
= readl(phba
->MBslimaddr
);
5421 /* Read the HBA Host Attention Register */
5422 ha_copy
= readl(phba
->HAregaddr
);
5423 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
,
5427 /* Wait for command to complete */
5428 while (((word0
& OWN_CHIP
) == OWN_CHIP
) ||
5429 (!(ha_copy
& HA_MBATT
) &&
5430 (phba
->link_state
> LPFC_WARM_START
))) {
5431 if (time_after(jiffies
, timeout
)) {
5432 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5433 spin_unlock_irqrestore(&phba
->hbalock
,
5435 goto out_not_finished
;
5438 /* Check if we took a mbox interrupt while we were
5440 if (((word0
& OWN_CHIP
) != OWN_CHIP
)
5441 && (evtctr
!= psli
->slistat
.mbox_event
))
5445 spin_unlock_irqrestore(&phba
->hbalock
,
5448 spin_lock_irqsave(&phba
->hbalock
, drvr_flag
);
5451 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5452 /* First copy command data */
5453 word0
= *((uint32_t *)phba
->mbox
);
5454 word0
= le32_to_cpu(word0
);
5455 if (mb
->mbxCommand
== MBX_CONFIG_PORT
) {
5458 /* Check real SLIM for any errors */
5459 slimword0
= readl(phba
->MBslimaddr
);
5460 slimmb
= (MAILBOX_t
*) & slimword0
;
5461 if (((slimword0
& OWN_CHIP
) != OWN_CHIP
)
5462 && slimmb
->mbxStatus
) {
5469 /* First copy command data */
5470 word0
= readl(phba
->MBslimaddr
);
5472 /* Read the HBA Host Attention Register */
5473 ha_copy
= readl(phba
->HAregaddr
);
5476 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
5477 /* copy results back to user */
5478 lpfc_sli_pcimem_bcopy(phba
->mbox
, mb
, MAILBOX_CMD_SIZE
);
5479 /* Copy the mailbox extension data */
5480 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5481 lpfc_sli_pcimem_bcopy(phba
->mbox_ext
,
5483 pmbox
->out_ext_byte_len
);
5486 /* First copy command data */
5487 lpfc_memcpy_from_slim(mb
, phba
->MBslimaddr
,
5489 /* Copy the mailbox extension data */
5490 if (pmbox
->out_ext_byte_len
&& pmbox
->context2
) {
5491 lpfc_memcpy_from_slim(pmbox
->context2
,
5493 MAILBOX_HBA_EXT_OFFSET
,
5494 pmbox
->out_ext_byte_len
);
5498 writel(HA_MBATT
, phba
->HAregaddr
);
5499 readl(phba
->HAregaddr
); /* flush */
5501 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5502 status
= mb
->mbxStatus
;
5505 spin_unlock_irqrestore(&phba
->hbalock
, drvr_flag
);
5509 if (processing_queue
) {
5510 pmbox
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5511 lpfc_mbox_cmpl_put(phba
, pmbox
);
5513 return MBX_NOT_FINISHED
;
5517 * lpfc_sli4_async_mbox_block - Block posting SLI4 asynchronous mailbox command
5518 * @phba: Pointer to HBA context object.
5520 * The function blocks the posting of SLI4 asynchronous mailbox commands from
5521 * the driver internal pending mailbox queue. It will then try to wait out the
5522 * possible outstanding mailbox command before return.
5525 * 0 - the outstanding mailbox command completed; otherwise, the wait for
5526 * the outstanding mailbox command timed out.
5529 lpfc_sli4_async_mbox_block(struct lpfc_hba
*phba
)
5531 struct lpfc_sli
*psli
= &phba
->sli
;
5532 uint8_t actcmd
= MBX_HEARTBEAT
;
5534 unsigned long timeout
;
5536 /* Mark the asynchronous mailbox command posting as blocked */
5537 spin_lock_irq(&phba
->hbalock
);
5538 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
5539 if (phba
->sli
.mbox_active
)
5540 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
5541 spin_unlock_irq(&phba
->hbalock
);
5542 /* Determine how long we might wait for the active mailbox
5543 * command to be gracefully completed by firmware.
5545 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) * 1000) +
5547 /* Wait for the outstnading mailbox command to complete */
5548 while (phba
->sli
.mbox_active
) {
5549 /* Check active mailbox complete status every 2ms */
5551 if (time_after(jiffies
, timeout
)) {
5552 /* Timeout, marked the outstanding cmd not complete */
5558 /* Can not cleanly block async mailbox command, fails it */
5560 spin_lock_irq(&phba
->hbalock
);
5561 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5562 spin_unlock_irq(&phba
->hbalock
);
5568 * lpfc_sli4_async_mbox_unblock - Block posting SLI4 async mailbox command
5569 * @phba: Pointer to HBA context object.
5571 * The function unblocks and resume posting of SLI4 asynchronous mailbox
5572 * commands from the driver internal pending mailbox queue. It makes sure
5573 * that there is no outstanding mailbox command before resuming posting
5574 * asynchronous mailbox commands. If, for any reason, there is outstanding
5575 * mailbox command, it will try to wait it out before resuming asynchronous
5576 * mailbox command posting.
5579 lpfc_sli4_async_mbox_unblock(struct lpfc_hba
*phba
)
5581 struct lpfc_sli
*psli
= &phba
->sli
;
5583 spin_lock_irq(&phba
->hbalock
);
5584 if (!(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5585 /* Asynchronous mailbox posting is not blocked, do nothing */
5586 spin_unlock_irq(&phba
->hbalock
);
5590 /* Outstanding synchronous mailbox command is guaranteed to be done,
5591 * successful or timeout, after timing-out the outstanding mailbox
5592 * command shall always be removed, so just unblock posting async
5593 * mailbox command and resume
5595 psli
->sli_flag
&= ~LPFC_SLI_ASYNC_MBX_BLK
;
5596 spin_unlock_irq(&phba
->hbalock
);
5598 /* wake up worker thread to post asynchronlous mailbox command */
5599 lpfc_worker_wake_up(phba
);
5603 * lpfc_sli4_post_sync_mbox - Post an SLI4 mailbox to the bootstrap mailbox
5604 * @phba: Pointer to HBA context object.
5605 * @mboxq: Pointer to mailbox object.
5607 * The function posts a mailbox to the port. The mailbox is expected
5608 * to be comletely filled in and ready for the port to operate on it.
5609 * This routine executes a synchronous completion operation on the
5610 * mailbox by polling for its completion.
5612 * The caller must not be holding any locks when calling this routine.
5615 * MBX_SUCCESS - mailbox posted successfully
5616 * Any of the MBX error values.
5619 lpfc_sli4_post_sync_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
5621 int rc
= MBX_SUCCESS
;
5622 unsigned long iflag
;
5624 uint32_t mcqe_status
;
5626 unsigned long timeout
;
5627 struct lpfc_sli
*psli
= &phba
->sli
;
5628 struct lpfc_mqe
*mb
= &mboxq
->u
.mqe
;
5629 struct lpfc_bmbx_create
*mbox_rgn
;
5630 struct dma_address
*dma_address
;
5631 struct lpfc_register bmbx_reg
;
5634 * Only one mailbox can be active to the bootstrap mailbox region
5635 * at a time and there is no queueing provided.
5637 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5638 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5639 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5640 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5641 "(%d):2532 Mailbox command x%x (x%x) "
5642 "cannot issue Data: x%x x%x\n",
5643 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5644 mboxq
->u
.mb
.mbxCommand
,
5645 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5646 psli
->sli_flag
, MBX_POLL
);
5647 return MBXERR_ERROR
;
5649 /* The server grabs the token and owns it until release */
5650 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5651 phba
->sli
.mbox_active
= mboxq
;
5652 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5655 * Initialize the bootstrap memory region to avoid stale data areas
5656 * in the mailbox post. Then copy the caller's mailbox contents to
5657 * the bmbx mailbox region.
5659 mbx_cmnd
= bf_get(lpfc_mqe_command
, mb
);
5660 memset(phba
->sli4_hba
.bmbx
.avirt
, 0, sizeof(struct lpfc_bmbx_create
));
5661 lpfc_sli_pcimem_bcopy(mb
, phba
->sli4_hba
.bmbx
.avirt
,
5662 sizeof(struct lpfc_mqe
));
5664 /* Post the high mailbox dma address to the port and wait for ready. */
5665 dma_address
= &phba
->sli4_hba
.bmbx
.dma_address
;
5666 writel(dma_address
->addr_hi
, phba
->sli4_hba
.BMBXregaddr
);
5668 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5671 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5672 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5676 if (time_after(jiffies
, timeout
)) {
5680 } while (!db_ready
);
5682 /* Post the low mailbox dma address to the port. */
5683 writel(dma_address
->addr_lo
, phba
->sli4_hba
.BMBXregaddr
);
5684 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, mbx_cmnd
)
5687 bmbx_reg
.word0
= readl(phba
->sli4_hba
.BMBXregaddr
);
5688 db_ready
= bf_get(lpfc_bmbx_rdy
, &bmbx_reg
);
5692 if (time_after(jiffies
, timeout
)) {
5696 } while (!db_ready
);
5699 * Read the CQ to ensure the mailbox has completed.
5700 * If so, update the mailbox status so that the upper layers
5701 * can complete the request normally.
5703 lpfc_sli_pcimem_bcopy(phba
->sli4_hba
.bmbx
.avirt
, mb
,
5704 sizeof(struct lpfc_mqe
));
5705 mbox_rgn
= (struct lpfc_bmbx_create
*) phba
->sli4_hba
.bmbx
.avirt
;
5706 lpfc_sli_pcimem_bcopy(&mbox_rgn
->mcqe
, &mboxq
->mcqe
,
5707 sizeof(struct lpfc_mcqe
));
5708 mcqe_status
= bf_get(lpfc_mcqe_status
, &mbox_rgn
->mcqe
);
5710 /* Prefix the mailbox status with range x4000 to note SLI4 status. */
5711 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
) {
5712 bf_set(lpfc_mqe_status
, mb
, LPFC_MBX_ERROR_RANGE
| mcqe_status
);
5715 lpfc_sli4_swap_str(phba
, mboxq
);
5717 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5718 "(%d):0356 Mailbox cmd x%x (x%x) Status x%x "
5719 "Data: x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x x%x"
5720 " x%x x%x CQ: x%x x%x x%x x%x\n",
5721 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5722 mbx_cmnd
, lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5723 bf_get(lpfc_mqe_status
, mb
),
5724 mb
->un
.mb_words
[0], mb
->un
.mb_words
[1],
5725 mb
->un
.mb_words
[2], mb
->un
.mb_words
[3],
5726 mb
->un
.mb_words
[4], mb
->un
.mb_words
[5],
5727 mb
->un
.mb_words
[6], mb
->un
.mb_words
[7],
5728 mb
->un
.mb_words
[8], mb
->un
.mb_words
[9],
5729 mb
->un
.mb_words
[10], mb
->un
.mb_words
[11],
5730 mb
->un
.mb_words
[12], mboxq
->mcqe
.word0
,
5731 mboxq
->mcqe
.mcqe_tag0
, mboxq
->mcqe
.mcqe_tag1
,
5732 mboxq
->mcqe
.trailer
);
5734 /* We are holding the token, no needed for lock when release */
5735 spin_lock_irqsave(&phba
->hbalock
, iflag
);
5736 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5737 phba
->sli
.mbox_active
= NULL
;
5738 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
5743 * lpfc_sli_issue_mbox_s4 - Issue an SLI4 mailbox command to firmware
5744 * @phba: Pointer to HBA context object.
5745 * @pmbox: Pointer to mailbox object.
5746 * @flag: Flag indicating how the mailbox need to be processed.
5748 * This function is called by discovery code and HBA management code to submit
5749 * a mailbox command to firmware with SLI-4 interface spec.
5751 * Return codes the caller owns the mailbox command after the return of the
5755 lpfc_sli_issue_mbox_s4(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
,
5758 struct lpfc_sli
*psli
= &phba
->sli
;
5759 unsigned long iflags
;
5762 rc
= lpfc_mbox_dev_check(phba
);
5764 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5765 "(%d):2544 Mailbox command x%x (x%x) "
5766 "cannot issue Data: x%x x%x\n",
5767 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5768 mboxq
->u
.mb
.mbxCommand
,
5769 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5770 psli
->sli_flag
, flag
);
5771 goto out_not_finished
;
5774 /* Detect polling mode and jump to a handler */
5775 if (!phba
->sli4_hba
.intr_enable
) {
5776 if (flag
== MBX_POLL
)
5777 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5780 if (rc
!= MBX_SUCCESS
)
5781 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5782 "(%d):2541 Mailbox command x%x "
5783 "(x%x) cannot issue Data: x%x x%x\n",
5784 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5785 mboxq
->u
.mb
.mbxCommand
,
5786 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5787 psli
->sli_flag
, flag
);
5789 } else if (flag
== MBX_POLL
) {
5790 lpfc_printf_log(phba
, KERN_WARNING
, LOG_MBOX
| LOG_SLI
,
5791 "(%d):2542 Try to issue mailbox command "
5792 "x%x (x%x) synchronously ahead of async"
5793 "mailbox command queue: x%x x%x\n",
5794 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5795 mboxq
->u
.mb
.mbxCommand
,
5796 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5797 psli
->sli_flag
, flag
);
5798 /* Try to block the asynchronous mailbox posting */
5799 rc
= lpfc_sli4_async_mbox_block(phba
);
5801 /* Successfully blocked, now issue sync mbox cmd */
5802 rc
= lpfc_sli4_post_sync_mbox(phba
, mboxq
);
5803 if (rc
!= MBX_SUCCESS
)
5804 lpfc_printf_log(phba
, KERN_ERR
,
5806 "(%d):2597 Mailbox command "
5807 "x%x (x%x) cannot issue "
5810 mboxq
->vport
->vpi
: 0,
5811 mboxq
->u
.mb
.mbxCommand
,
5812 lpfc_sli4_mbox_opcode_get(phba
,
5814 psli
->sli_flag
, flag
);
5815 /* Unblock the async mailbox posting afterward */
5816 lpfc_sli4_async_mbox_unblock(phba
);
5821 /* Now, interrupt mode asynchrous mailbox command */
5822 rc
= lpfc_mbox_cmd_check(phba
, mboxq
);
5824 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5825 "(%d):2543 Mailbox command x%x (x%x) "
5826 "cannot issue Data: x%x x%x\n",
5827 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5828 mboxq
->u
.mb
.mbxCommand
,
5829 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5830 psli
->sli_flag
, flag
);
5831 goto out_not_finished
;
5834 /* Put the mailbox command to the driver internal FIFO */
5835 psli
->slistat
.mbox_busy
++;
5836 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5837 lpfc_mbox_put(phba
, mboxq
);
5838 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5839 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5840 "(%d):0354 Mbox cmd issue - Enqueue Data: "
5841 "x%x (x%x) x%x x%x x%x\n",
5842 mboxq
->vport
? mboxq
->vport
->vpi
: 0xffffff,
5843 bf_get(lpfc_mqe_command
, &mboxq
->u
.mqe
),
5844 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5845 phba
->pport
->port_state
,
5846 psli
->sli_flag
, MBX_NOWAIT
);
5847 /* Wake up worker thread to transport mailbox command from head */
5848 lpfc_worker_wake_up(phba
);
5853 return MBX_NOT_FINISHED
;
5857 * lpfc_sli4_post_async_mbox - Post an SLI4 mailbox command to device
5858 * @phba: Pointer to HBA context object.
5860 * This function is called by worker thread to send a mailbox command to
5861 * SLI4 HBA firmware.
5865 lpfc_sli4_post_async_mbox(struct lpfc_hba
*phba
)
5867 struct lpfc_sli
*psli
= &phba
->sli
;
5868 LPFC_MBOXQ_t
*mboxq
;
5869 int rc
= MBX_SUCCESS
;
5870 unsigned long iflags
;
5871 struct lpfc_mqe
*mqe
;
5874 /* Check interrupt mode before post async mailbox command */
5875 if (unlikely(!phba
->sli4_hba
.intr_enable
))
5876 return MBX_NOT_FINISHED
;
5878 /* Check for mailbox command service token */
5879 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5880 if (unlikely(psli
->sli_flag
& LPFC_SLI_ASYNC_MBX_BLK
)) {
5881 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5882 return MBX_NOT_FINISHED
;
5884 if (psli
->sli_flag
& LPFC_SLI_MBOX_ACTIVE
) {
5885 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5886 return MBX_NOT_FINISHED
;
5888 if (unlikely(phba
->sli
.mbox_active
)) {
5889 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5890 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5891 "0384 There is pending active mailbox cmd\n");
5892 return MBX_NOT_FINISHED
;
5894 /* Take the mailbox command service token */
5895 psli
->sli_flag
|= LPFC_SLI_MBOX_ACTIVE
;
5897 /* Get the next mailbox command from head of queue */
5898 mboxq
= lpfc_mbox_get(phba
);
5900 /* If no more mailbox command waiting for post, we're done */
5902 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5903 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5906 phba
->sli
.mbox_active
= mboxq
;
5907 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5909 /* Check device readiness for posting mailbox command */
5910 rc
= lpfc_mbox_dev_check(phba
);
5912 /* Driver clean routine will clean up pending mailbox */
5913 goto out_not_finished
;
5915 /* Prepare the mbox command to be posted */
5916 mqe
= &mboxq
->u
.mqe
;
5917 mbx_cmnd
= bf_get(lpfc_mqe_command
, mqe
);
5919 /* Start timer for the mbox_tmo and log some mailbox post messages */
5920 mod_timer(&psli
->mbox_tmo
, (jiffies
+
5921 (HZ
* lpfc_mbox_tmo_val(phba
, mbx_cmnd
))));
5923 lpfc_printf_log(phba
, KERN_INFO
, LOG_MBOX
| LOG_SLI
,
5924 "(%d):0355 Mailbox cmd x%x (x%x) issue Data: "
5926 mboxq
->vport
? mboxq
->vport
->vpi
: 0, mbx_cmnd
,
5927 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5928 phba
->pport
->port_state
, psli
->sli_flag
);
5930 if (mbx_cmnd
!= MBX_HEARTBEAT
) {
5932 lpfc_debugfs_disc_trc(mboxq
->vport
,
5933 LPFC_DISC_TRC_MBOX_VPORT
,
5934 "MBOX Send vport: cmd:x%x mb:x%x x%x",
5935 mbx_cmnd
, mqe
->un
.mb_words
[0],
5936 mqe
->un
.mb_words
[1]);
5938 lpfc_debugfs_disc_trc(phba
->pport
,
5940 "MBOX Send: cmd:x%x mb:x%x x%x",
5941 mbx_cmnd
, mqe
->un
.mb_words
[0],
5942 mqe
->un
.mb_words
[1]);
5945 psli
->slistat
.mbox_cmd
++;
5947 /* Post the mailbox command to the port */
5948 rc
= lpfc_sli4_mq_put(phba
->sli4_hba
.mbx_wq
, mqe
);
5949 if (rc
!= MBX_SUCCESS
) {
5950 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
| LOG_SLI
,
5951 "(%d):2533 Mailbox command x%x (x%x) "
5952 "cannot issue Data: x%x x%x\n",
5953 mboxq
->vport
? mboxq
->vport
->vpi
: 0,
5954 mboxq
->u
.mb
.mbxCommand
,
5955 lpfc_sli4_mbox_opcode_get(phba
, mboxq
),
5956 psli
->sli_flag
, MBX_NOWAIT
);
5957 goto out_not_finished
;
5963 spin_lock_irqsave(&phba
->hbalock
, iflags
);
5964 mboxq
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
5965 __lpfc_mbox_cmpl_put(phba
, mboxq
);
5966 /* Release the token */
5967 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
5968 phba
->sli
.mbox_active
= NULL
;
5969 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
5971 return MBX_NOT_FINISHED
;
5975 * lpfc_sli_issue_mbox - Wrapper func for issuing mailbox command
5976 * @phba: Pointer to HBA context object.
5977 * @pmbox: Pointer to mailbox object.
5978 * @flag: Flag indicating how the mailbox need to be processed.
5980 * This routine wraps the actual SLI3 or SLI4 mailbox issuing routine from
5981 * the API jump table function pointer from the lpfc_hba struct.
5983 * Return codes the caller owns the mailbox command after the return of the
5987 lpfc_sli_issue_mbox(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmbox
, uint32_t flag
)
5989 return phba
->lpfc_sli_issue_mbox(phba
, pmbox
, flag
);
5993 * lpfc_mbox_api_table_setup - Set up mbox api fucntion jump table
5994 * @phba: The hba struct for which this call is being executed.
5995 * @dev_grp: The HBA PCI-Device group number.
5997 * This routine sets up the mbox interface API function jump table in @phba
5999 * Returns: 0 - success, -ENODEV - failure.
6002 lpfc_mbox_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6006 case LPFC_PCI_DEV_LP
:
6007 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s3
;
6008 phba
->lpfc_sli_handle_slow_ring_event
=
6009 lpfc_sli_handle_slow_ring_event_s3
;
6010 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s3
;
6011 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s3
;
6012 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s3
;
6014 case LPFC_PCI_DEV_OC
:
6015 phba
->lpfc_sli_issue_mbox
= lpfc_sli_issue_mbox_s4
;
6016 phba
->lpfc_sli_handle_slow_ring_event
=
6017 lpfc_sli_handle_slow_ring_event_s4
;
6018 phba
->lpfc_sli_hbq_to_firmware
= lpfc_sli_hbq_to_firmware_s4
;
6019 phba
->lpfc_sli_brdrestart
= lpfc_sli_brdrestart_s4
;
6020 phba
->lpfc_sli_brdready
= lpfc_sli_brdready_s4
;
6023 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6024 "1420 Invalid HBA PCI-device group: 0x%x\n",
6033 * __lpfc_sli_ringtx_put - Add an iocb to the txq
6034 * @phba: Pointer to HBA context object.
6035 * @pring: Pointer to driver SLI ring object.
6036 * @piocb: Pointer to address of newly added command iocb.
6038 * This function is called with hbalock held to add a command
6039 * iocb to the txq when SLI layer cannot submit the command iocb
6043 __lpfc_sli_ringtx_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6044 struct lpfc_iocbq
*piocb
)
6046 /* Insert the caller's iocb in the txq tail for later processing. */
6047 list_add_tail(&piocb
->list
, &pring
->txq
);
6052 * lpfc_sli_next_iocb - Get the next iocb in the txq
6053 * @phba: Pointer to HBA context object.
6054 * @pring: Pointer to driver SLI ring object.
6055 * @piocb: Pointer to address of newly added command iocb.
6057 * This function is called with hbalock held before a new
6058 * iocb is submitted to the firmware. This function checks
6059 * txq to flush the iocbs in txq to Firmware before
6060 * submitting new iocbs to the Firmware.
6061 * If there are iocbs in the txq which need to be submitted
6062 * to firmware, lpfc_sli_next_iocb returns the first element
6063 * of the txq after dequeuing it from txq.
6064 * If there is no iocb in the txq then the function will return
6065 * *piocb and *piocb is set to NULL. Caller needs to check
6066 * *piocb to find if there are more commands in the txq.
6068 static struct lpfc_iocbq
*
6069 lpfc_sli_next_iocb(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
6070 struct lpfc_iocbq
**piocb
)
6072 struct lpfc_iocbq
* nextiocb
;
6074 nextiocb
= lpfc_sli_ringtx_get(phba
, pring
);
6084 * __lpfc_sli_issue_iocb_s3 - SLI3 device lockless ver of lpfc_sli_issue_iocb
6085 * @phba: Pointer to HBA context object.
6086 * @ring_number: SLI ring number to issue iocb on.
6087 * @piocb: Pointer to command iocb.
6088 * @flag: Flag indicating if this command can be put into txq.
6090 * __lpfc_sli_issue_iocb_s3 is used by other functions in the driver to issue
6091 * an iocb command to an HBA with SLI-3 interface spec. If the PCI slot is
6092 * recovering from error state, if HBA is resetting or if LPFC_STOP_IOCB_EVENT
6093 * flag is turned on, the function returns IOCB_ERROR. When the link is down,
6094 * this function allows only iocbs for posting buffers. This function finds
6095 * next available slot in the command ring and posts the command to the
6096 * available slot and writes the port attention register to request HBA start
6097 * processing new iocb. If there is no slot available in the ring and
6098 * flag & SLI_IOCB_RET_IOCB is set, the new iocb is added to the txq, otherwise
6099 * the function returns IOCB_BUSY.
6101 * This function is called with hbalock held. The function will return success
6102 * after it successfully submit the iocb to firmware or after adding to the
6106 __lpfc_sli_issue_iocb_s3(struct lpfc_hba
*phba
, uint32_t ring_number
,
6107 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6109 struct lpfc_iocbq
*nextiocb
;
6111 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6113 if (piocb
->iocb_cmpl
&& (!piocb
->vport
) &&
6114 (piocb
->iocb
.ulpCommand
!= CMD_ABORT_XRI_CN
) &&
6115 (piocb
->iocb
.ulpCommand
!= CMD_CLOSE_XRI_CN
)) {
6116 lpfc_printf_log(phba
, KERN_ERR
,
6117 LOG_SLI
| LOG_VPORT
,
6118 "1807 IOCB x%x failed. No vport\n",
6119 piocb
->iocb
.ulpCommand
);
6125 /* If the PCI channel is in offline state, do not post iocbs. */
6126 if (unlikely(pci_channel_offline(phba
->pcidev
)))
6129 /* If HBA has a deferred error attention, fail the iocb. */
6130 if (unlikely(phba
->hba_flag
& DEFER_ERATT
))
6134 * We should never get an IOCB if we are in a < LINK_DOWN state
6136 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
6140 * Check to see if we are blocking IOCB processing because of a
6141 * outstanding event.
6143 if (unlikely(pring
->flag
& LPFC_STOP_IOCB_EVENT
))
6146 if (unlikely(phba
->link_state
== LPFC_LINK_DOWN
)) {
6148 * Only CREATE_XRI, CLOSE_XRI, and QUE_RING_BUF
6149 * can be issued if the link is not up.
6151 switch (piocb
->iocb
.ulpCommand
) {
6152 case CMD_GEN_REQUEST64_CR
:
6153 case CMD_GEN_REQUEST64_CX
:
6154 if (!(phba
->sli
.sli_flag
& LPFC_MENLO_MAINT
) ||
6155 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Rctl
!=
6156 FC_RCTL_DD_UNSOL_CMD
) ||
6157 (piocb
->iocb
.un
.genreq64
.w5
.hcsw
.Type
!=
6158 MENLO_TRANSPORT_TYPE
))
6162 case CMD_QUE_RING_BUF_CN
:
6163 case CMD_QUE_RING_BUF64_CN
:
6165 * For IOCBs, like QUE_RING_BUF, that have no rsp ring
6166 * completion, iocb_cmpl MUST be 0.
6168 if (piocb
->iocb_cmpl
)
6169 piocb
->iocb_cmpl
= NULL
;
6171 case CMD_CREATE_XRI_CR
:
6172 case CMD_CLOSE_XRI_CN
:
6173 case CMD_CLOSE_XRI_CX
:
6180 * For FCP commands, we must be in a state where we can process link
6183 } else if (unlikely(pring
->ringno
== phba
->sli
.fcp_ring
&&
6184 !(phba
->sli
.sli_flag
& LPFC_PROCESS_LA
))) {
6188 while ((iocb
= lpfc_sli_next_iocb_slot(phba
, pring
)) &&
6189 (nextiocb
= lpfc_sli_next_iocb(phba
, pring
, &piocb
)))
6190 lpfc_sli_submit_iocb(phba
, pring
, iocb
, nextiocb
);
6193 lpfc_sli_update_ring(phba
, pring
);
6195 lpfc_sli_update_full_ring(phba
, pring
);
6198 return IOCB_SUCCESS
;
6203 pring
->stats
.iocb_cmd_delay
++;
6207 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6208 __lpfc_sli_ringtx_put(phba
, pring
, piocb
);
6209 return IOCB_SUCCESS
;
6216 * lpfc_sli4_bpl2sgl - Convert the bpl/bde to a sgl.
6217 * @phba: Pointer to HBA context object.
6218 * @piocb: Pointer to command iocb.
6219 * @sglq: Pointer to the scatter gather queue object.
6221 * This routine converts the bpl or bde that is in the IOCB
6222 * to a sgl list for the sli4 hardware. The physical address
6223 * of the bpl/bde is converted back to a virtual address.
6224 * If the IOCB contains a BPL then the list of BDE's is
6225 * converted to sli4_sge's. If the IOCB contains a single
6226 * BDE then it is converted to a single sli_sge.
6227 * The IOCB is still in cpu endianess so the contents of
6228 * the bpl can be used without byte swapping.
6230 * Returns valid XRI = Success, NO_XRI = Failure.
6233 lpfc_sli4_bpl2sgl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*piocbq
,
6234 struct lpfc_sglq
*sglq
)
6236 uint16_t xritag
= NO_XRI
;
6237 struct ulp_bde64
*bpl
= NULL
;
6238 struct ulp_bde64 bde
;
6239 struct sli4_sge
*sgl
= NULL
;
6243 uint32_t offset
= 0; /* accumulated offset in the sg request list */
6244 int inbound
= 0; /* number of sg reply entries inbound from firmware */
6246 if (!piocbq
|| !sglq
)
6249 sgl
= (struct sli4_sge
*)sglq
->sgl
;
6250 icmd
= &piocbq
->iocb
;
6251 if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
6252 numBdes
= icmd
->un
.genreq64
.bdl
.bdeSize
/
6253 sizeof(struct ulp_bde64
);
6254 /* The addrHigh and addrLow fields within the IOCB
6255 * have not been byteswapped yet so there is no
6256 * need to swap them back.
6258 bpl
= (struct ulp_bde64
*)
6259 ((struct lpfc_dmabuf
*)piocbq
->context3
)->virt
;
6264 for (i
= 0; i
< numBdes
; i
++) {
6265 /* Should already be byte swapped. */
6266 sgl
->addr_hi
= bpl
->addrHigh
;
6267 sgl
->addr_lo
= bpl
->addrLow
;
6269 if ((i
+1) == numBdes
)
6270 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
6272 bf_set(lpfc_sli4_sge_last
, sgl
, 0);
6273 sgl
->word2
= cpu_to_le32(sgl
->word2
);
6274 /* swap the size field back to the cpu so we
6275 * can assign it to the sgl.
6277 bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
6278 sgl
->sge_len
= cpu_to_le32(bde
.tus
.f
.bdeSize
);
6279 /* The offsets in the sgl need to be accumulated
6280 * separately for the request and reply lists.
6281 * The request is always first, the reply follows.
6283 if (piocbq
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
) {
6284 /* add up the reply sg entries */
6285 if (bpl
->tus
.f
.bdeFlags
== BUFF_TYPE_BDE_64I
)
6287 /* first inbound? reset the offset */
6290 bf_set(lpfc_sli4_sge_offset
, sgl
, offset
);
6291 offset
+= bde
.tus
.f
.bdeSize
;
6296 } else if (icmd
->un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BDE_64
) {
6297 /* The addrHigh and addrLow fields of the BDE have not
6298 * been byteswapped yet so they need to be swapped
6299 * before putting them in the sgl.
6302 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrHigh
);
6304 cpu_to_le32(icmd
->un
.genreq64
.bdl
.addrLow
);
6305 bf_set(lpfc_sli4_sge_last
, sgl
, 1);
6306 sgl
->word2
= cpu_to_le32(sgl
->word2
);
6308 cpu_to_le32(icmd
->un
.genreq64
.bdl
.bdeSize
);
6310 return sglq
->sli4_xritag
;
6314 * lpfc_sli4_scmd_to_wqidx_distr - scsi command to SLI4 WQ index distribution
6315 * @phba: Pointer to HBA context object.
6317 * This routine performs a roundrobin SCSI command to SLI4 FCP WQ index
6318 * distribution. This is called by __lpfc_sli_issue_iocb_s4() with the hbalock
6321 * Return: index into SLI4 fast-path FCP queue index.
6324 lpfc_sli4_scmd_to_wqidx_distr(struct lpfc_hba
*phba
)
6327 if (phba
->fcp_qidx
>= phba
->cfg_fcp_wq_count
)
6330 return phba
->fcp_qidx
;
6334 * lpfc_sli_iocb2wqe - Convert the IOCB to a work queue entry.
6335 * @phba: Pointer to HBA context object.
6336 * @piocb: Pointer to command iocb.
6337 * @wqe: Pointer to the work queue entry.
6339 * This routine converts the iocb command to its Work Queue Entry
6340 * equivalent. The wqe pointer should not have any fields set when
6341 * this routine is called because it will memcpy over them.
6342 * This routine does not set the CQ_ID or the WQEC bits in the
6345 * Returns: 0 = Success, IOCB_ERROR = Failure.
6348 lpfc_sli4_iocb2wqe(struct lpfc_hba
*phba
, struct lpfc_iocbq
*iocbq
,
6349 union lpfc_wqe
*wqe
)
6351 uint32_t xmit_len
= 0, total_len
= 0;
6355 uint8_t command_type
= ELS_COMMAND_NON_FIP
;
6358 uint16_t abrt_iotag
;
6359 struct lpfc_iocbq
*abrtiocbq
;
6360 struct ulp_bde64
*bpl
= NULL
;
6361 uint32_t els_id
= LPFC_ELS_ID_DEFAULT
;
6363 struct ulp_bde64 bde
;
6365 fip
= phba
->hba_flag
& HBA_FIP_SUPPORT
;
6366 /* The fcp commands will set command type */
6367 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
6368 command_type
= FCP_COMMAND
;
6369 else if (fip
&& (iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
))
6370 command_type
= ELS_COMMAND_FIP
;
6372 command_type
= ELS_COMMAND_NON_FIP
;
6374 /* Some of the fields are in the right position already */
6375 memcpy(wqe
, &iocbq
->iocb
, sizeof(union lpfc_wqe
));
6376 abort_tag
= (uint32_t) iocbq
->iotag
;
6377 xritag
= iocbq
->sli4_xritag
;
6378 wqe
->generic
.wqe_com
.word7
= 0; /* The ct field has moved so reset */
6379 /* words0-2 bpl convert bde */
6380 if (iocbq
->iocb
.un
.genreq64
.bdl
.bdeFlags
== BUFF_TYPE_BLP_64
) {
6381 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
6382 sizeof(struct ulp_bde64
);
6383 bpl
= (struct ulp_bde64
*)
6384 ((struct lpfc_dmabuf
*)iocbq
->context3
)->virt
;
6388 /* Should already be byte swapped. */
6389 wqe
->generic
.bde
.addrHigh
= le32_to_cpu(bpl
->addrHigh
);
6390 wqe
->generic
.bde
.addrLow
= le32_to_cpu(bpl
->addrLow
);
6391 /* swap the size field back to the cpu so we
6392 * can assign it to the sgl.
6394 wqe
->generic
.bde
.tus
.w
= le32_to_cpu(bpl
->tus
.w
);
6395 xmit_len
= wqe
->generic
.bde
.tus
.f
.bdeSize
;
6397 for (i
= 0; i
< numBdes
; i
++) {
6398 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
6399 total_len
+= bde
.tus
.f
.bdeSize
;
6402 xmit_len
= iocbq
->iocb
.un
.fcpi64
.bdl
.bdeSize
;
6404 iocbq
->iocb
.ulpIoTag
= iocbq
->iotag
;
6405 cmnd
= iocbq
->iocb
.ulpCommand
;
6407 switch (iocbq
->iocb
.ulpCommand
) {
6408 case CMD_ELS_REQUEST64_CR
:
6409 if (!iocbq
->iocb
.ulpLe
) {
6410 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6411 "2007 Only Limited Edition cmd Format"
6412 " supported 0x%x\n",
6413 iocbq
->iocb
.ulpCommand
);
6416 wqe
->els_req
.payload_len
= xmit_len
;
6417 /* Els_reguest64 has a TMO */
6418 bf_set(wqe_tmo
, &wqe
->els_req
.wqe_com
,
6419 iocbq
->iocb
.ulpTimeout
);
6420 /* Need a VF for word 4 set the vf bit*/
6421 bf_set(els_req64_vf
, &wqe
->els_req
, 0);
6422 /* And a VFID for word 12 */
6423 bf_set(els_req64_vfid
, &wqe
->els_req
, 0);
6424 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6425 bf_set(wqe_ctxt_tag
, &wqe
->els_req
.wqe_com
,
6426 iocbq
->iocb
.ulpContext
);
6427 bf_set(wqe_ct
, &wqe
->els_req
.wqe_com
, ct
);
6428 bf_set(wqe_pu
, &wqe
->els_req
.wqe_com
, 0);
6429 /* CCP CCPE PV PRI in word10 were set in the memcpy */
6430 if (command_type
== ELS_COMMAND_FIP
) {
6431 els_id
= ((iocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
)
6432 >> LPFC_FIP_ELS_ID_SHIFT
);
6434 bf_set(wqe_els_id
, &wqe
->els_req
.wqe_com
, els_id
);
6435 bf_set(wqe_dbde
, &wqe
->els_req
.wqe_com
, 1);
6436 bf_set(wqe_iod
, &wqe
->els_req
.wqe_com
, LPFC_WQE_IOD_READ
);
6437 bf_set(wqe_qosd
, &wqe
->els_req
.wqe_com
, 1);
6438 bf_set(wqe_lenloc
, &wqe
->els_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
6439 bf_set(wqe_ebde_cnt
, &wqe
->els_req
.wqe_com
, 0);
6441 case CMD_XMIT_SEQUENCE64_CX
:
6442 bf_set(wqe_ctxt_tag
, &wqe
->xmit_sequence
.wqe_com
,
6443 iocbq
->iocb
.un
.ulpWord
[3]);
6444 bf_set(wqe_rcvoxid
, &wqe
->xmit_sequence
.wqe_com
,
6445 iocbq
->iocb
.ulpContext
);
6446 /* The entire sequence is transmitted for this IOCB */
6447 xmit_len
= total_len
;
6448 cmnd
= CMD_XMIT_SEQUENCE64_CR
;
6449 case CMD_XMIT_SEQUENCE64_CR
:
6450 /* word3 iocb=io_tag32 wqe=reserved */
6451 wqe
->xmit_sequence
.rsvd3
= 0;
6452 /* word4 relative_offset memcpy */
6453 /* word5 r_ctl/df_ctl memcpy */
6454 bf_set(wqe_pu
, &wqe
->xmit_sequence
.wqe_com
, 0);
6455 bf_set(wqe_dbde
, &wqe
->xmit_sequence
.wqe_com
, 1);
6456 bf_set(wqe_iod
, &wqe
->xmit_sequence
.wqe_com
,
6457 LPFC_WQE_IOD_WRITE
);
6458 bf_set(wqe_lenloc
, &wqe
->xmit_sequence
.wqe_com
,
6459 LPFC_WQE_LENLOC_WORD12
);
6460 bf_set(wqe_ebde_cnt
, &wqe
->xmit_sequence
.wqe_com
, 0);
6461 wqe
->xmit_sequence
.xmit_len
= xmit_len
;
6462 command_type
= OTHER_COMMAND
;
6464 case CMD_XMIT_BCAST64_CN
:
6465 /* word3 iocb=iotag32 wqe=seq_payload_len */
6466 wqe
->xmit_bcast64
.seq_payload_len
= xmit_len
;
6467 /* word4 iocb=rsvd wqe=rsvd */
6468 /* word5 iocb=rctl/type/df_ctl wqe=rctl/type/df_ctl memcpy */
6469 /* word6 iocb=ctxt_tag/io_tag wqe=ctxt_tag/xri */
6470 bf_set(wqe_ct
, &wqe
->xmit_bcast64
.wqe_com
,
6471 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6472 bf_set(wqe_dbde
, &wqe
->xmit_bcast64
.wqe_com
, 1);
6473 bf_set(wqe_iod
, &wqe
->xmit_bcast64
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6474 bf_set(wqe_lenloc
, &wqe
->xmit_bcast64
.wqe_com
,
6475 LPFC_WQE_LENLOC_WORD3
);
6476 bf_set(wqe_ebde_cnt
, &wqe
->xmit_bcast64
.wqe_com
, 0);
6478 case CMD_FCP_IWRITE64_CR
:
6479 command_type
= FCP_COMMAND_DATA_OUT
;
6480 /* word3 iocb=iotag wqe=payload_offset_len */
6481 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6482 wqe
->fcp_iwrite
.payload_offset_len
=
6483 xmit_len
+ sizeof(struct fcp_rsp
);
6484 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6485 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6486 bf_set(wqe_erp
, &wqe
->fcp_iwrite
.wqe_com
,
6487 iocbq
->iocb
.ulpFCP2Rcvy
);
6488 bf_set(wqe_lnk
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpXS
);
6489 /* Always open the exchange */
6490 bf_set(wqe_xc
, &wqe
->fcp_iwrite
.wqe_com
, 0);
6491 bf_set(wqe_dbde
, &wqe
->fcp_iwrite
.wqe_com
, 1);
6492 bf_set(wqe_iod
, &wqe
->fcp_iwrite
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6493 bf_set(wqe_lenloc
, &wqe
->fcp_iwrite
.wqe_com
,
6494 LPFC_WQE_LENLOC_WORD4
);
6495 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iwrite
.wqe_com
, 0);
6496 bf_set(wqe_pu
, &wqe
->fcp_iwrite
.wqe_com
, iocbq
->iocb
.ulpPU
);
6498 case CMD_FCP_IREAD64_CR
:
6499 /* word3 iocb=iotag wqe=payload_offset_len */
6500 /* Add the FCP_CMD and FCP_RSP sizes to get the offset */
6501 wqe
->fcp_iread
.payload_offset_len
=
6502 xmit_len
+ sizeof(struct fcp_rsp
);
6503 /* word4 iocb=parameter wqe=total_xfer_length memcpy */
6504 /* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
6505 bf_set(wqe_erp
, &wqe
->fcp_iread
.wqe_com
,
6506 iocbq
->iocb
.ulpFCP2Rcvy
);
6507 bf_set(wqe_lnk
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpXS
);
6508 /* Always open the exchange */
6509 bf_set(wqe_xc
, &wqe
->fcp_iread
.wqe_com
, 0);
6510 bf_set(wqe_dbde
, &wqe
->fcp_iread
.wqe_com
, 1);
6511 bf_set(wqe_iod
, &wqe
->fcp_iread
.wqe_com
, LPFC_WQE_IOD_READ
);
6512 bf_set(wqe_lenloc
, &wqe
->fcp_iread
.wqe_com
,
6513 LPFC_WQE_LENLOC_WORD4
);
6514 bf_set(wqe_ebde_cnt
, &wqe
->fcp_iread
.wqe_com
, 0);
6515 bf_set(wqe_pu
, &wqe
->fcp_iread
.wqe_com
, iocbq
->iocb
.ulpPU
);
6517 case CMD_FCP_ICMND64_CR
:
6518 /* word3 iocb=IO_TAG wqe=reserved */
6519 wqe
->fcp_icmd
.rsrvd3
= 0;
6520 bf_set(wqe_pu
, &wqe
->fcp_icmd
.wqe_com
, 0);
6521 /* Always open the exchange */
6522 bf_set(wqe_xc
, &wqe
->fcp_icmd
.wqe_com
, 0);
6523 bf_set(wqe_dbde
, &wqe
->fcp_icmd
.wqe_com
, 1);
6524 bf_set(wqe_iod
, &wqe
->fcp_icmd
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6525 bf_set(wqe_qosd
, &wqe
->fcp_icmd
.wqe_com
, 1);
6526 bf_set(wqe_lenloc
, &wqe
->fcp_icmd
.wqe_com
,
6527 LPFC_WQE_LENLOC_NONE
);
6528 bf_set(wqe_ebde_cnt
, &wqe
->fcp_icmd
.wqe_com
, 0);
6530 case CMD_GEN_REQUEST64_CR
:
6531 /* For this command calculate the xmit length of the
6535 numBdes
= iocbq
->iocb
.un
.genreq64
.bdl
.bdeSize
/
6536 sizeof(struct ulp_bde64
);
6537 for (i
= 0; i
< numBdes
; i
++) {
6538 if (bpl
[i
].tus
.f
.bdeFlags
!= BUFF_TYPE_BDE_64
)
6540 bde
.tus
.w
= le32_to_cpu(bpl
[i
].tus
.w
);
6541 xmit_len
+= bde
.tus
.f
.bdeSize
;
6543 /* word3 iocb=IO_TAG wqe=request_payload_len */
6544 wqe
->gen_req
.request_payload_len
= xmit_len
;
6545 /* word4 iocb=parameter wqe=relative_offset memcpy */
6546 /* word5 [rctl, type, df_ctl, la] copied in memcpy */
6547 /* word6 context tag copied in memcpy */
6548 if (iocbq
->iocb
.ulpCt_h
|| iocbq
->iocb
.ulpCt_l
) {
6549 ct
= ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
);
6550 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6551 "2015 Invalid CT %x command 0x%x\n",
6552 ct
, iocbq
->iocb
.ulpCommand
);
6555 bf_set(wqe_ct
, &wqe
->gen_req
.wqe_com
, 0);
6556 bf_set(wqe_tmo
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpTimeout
);
6557 bf_set(wqe_pu
, &wqe
->gen_req
.wqe_com
, iocbq
->iocb
.ulpPU
);
6558 bf_set(wqe_dbde
, &wqe
->gen_req
.wqe_com
, 1);
6559 bf_set(wqe_iod
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_IOD_READ
);
6560 bf_set(wqe_qosd
, &wqe
->gen_req
.wqe_com
, 1);
6561 bf_set(wqe_lenloc
, &wqe
->gen_req
.wqe_com
, LPFC_WQE_LENLOC_NONE
);
6562 bf_set(wqe_ebde_cnt
, &wqe
->gen_req
.wqe_com
, 0);
6563 command_type
= OTHER_COMMAND
;
6565 case CMD_XMIT_ELS_RSP64_CX
:
6566 /* words0-2 BDE memcpy */
6567 /* word3 iocb=iotag32 wqe=response_payload_len */
6568 wqe
->xmit_els_rsp
.response_payload_len
= xmit_len
;
6569 /* word4 iocb=did wge=rsvd. */
6570 wqe
->xmit_els_rsp
.rsvd4
= 0;
6571 /* word5 iocb=rsvd wge=did */
6572 bf_set(wqe_els_did
, &wqe
->xmit_els_rsp
.wqe_dest
,
6573 iocbq
->iocb
.un
.elsreq64
.remoteID
);
6574 bf_set(wqe_ct
, &wqe
->xmit_els_rsp
.wqe_com
,
6575 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6576 bf_set(wqe_pu
, &wqe
->xmit_els_rsp
.wqe_com
, iocbq
->iocb
.ulpPU
);
6577 bf_set(wqe_rcvoxid
, &wqe
->xmit_els_rsp
.wqe_com
,
6578 iocbq
->iocb
.ulpContext
);
6579 if (!iocbq
->iocb
.ulpCt_h
&& iocbq
->iocb
.ulpCt_l
)
6580 bf_set(wqe_ctxt_tag
, &wqe
->xmit_els_rsp
.wqe_com
,
6581 iocbq
->vport
->vpi
+ phba
->vpi_base
);
6582 bf_set(wqe_dbde
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
6583 bf_set(wqe_iod
, &wqe
->xmit_els_rsp
.wqe_com
, LPFC_WQE_IOD_WRITE
);
6584 bf_set(wqe_qosd
, &wqe
->xmit_els_rsp
.wqe_com
, 1);
6585 bf_set(wqe_lenloc
, &wqe
->xmit_els_rsp
.wqe_com
,
6586 LPFC_WQE_LENLOC_WORD3
);
6587 bf_set(wqe_ebde_cnt
, &wqe
->xmit_els_rsp
.wqe_com
, 0);
6588 command_type
= OTHER_COMMAND
;
6590 case CMD_CLOSE_XRI_CN
:
6591 case CMD_ABORT_XRI_CN
:
6592 case CMD_ABORT_XRI_CX
:
6593 /* words 0-2 memcpy should be 0 rserved */
6594 /* port will send abts */
6595 abrt_iotag
= iocbq
->iocb
.un
.acxri
.abortContextTag
;
6596 if (abrt_iotag
!= 0 && abrt_iotag
<= phba
->sli
.last_iotag
) {
6597 abrtiocbq
= phba
->sli
.iocbq_lookup
[abrt_iotag
];
6598 fip
= abrtiocbq
->iocb_flag
& LPFC_FIP_ELS_ID_MASK
;
6602 if ((iocbq
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
) || fip
)
6604 * The link is down, or the command was ELS_FIP
6605 * so the fw does not need to send abts
6608 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 1);
6610 bf_set(abort_cmd_ia
, &wqe
->abort_cmd
, 0);
6611 bf_set(abort_cmd_criteria
, &wqe
->abort_cmd
, T_XRI_TAG
);
6612 /* word5 iocb=CONTEXT_TAG|IO_TAG wqe=reserved */
6613 wqe
->abort_cmd
.rsrvd5
= 0;
6614 bf_set(wqe_ct
, &wqe
->abort_cmd
.wqe_com
,
6615 ((iocbq
->iocb
.ulpCt_h
<< 1) | iocbq
->iocb
.ulpCt_l
));
6616 abort_tag
= iocbq
->iocb
.un
.acxri
.abortIoTag
;
6618 * The abort handler will send us CMD_ABORT_XRI_CN or
6619 * CMD_CLOSE_XRI_CN and the fw only accepts CMD_ABORT_XRI_CX
6621 bf_set(wqe_cmnd
, &wqe
->abort_cmd
.wqe_com
, CMD_ABORT_XRI_CX
);
6622 bf_set(wqe_qosd
, &wqe
->abort_cmd
.wqe_com
, 1);
6623 bf_set(wqe_lenloc
, &wqe
->abort_cmd
.wqe_com
,
6624 LPFC_WQE_LENLOC_NONE
);
6625 cmnd
= CMD_ABORT_XRI_CX
;
6626 command_type
= OTHER_COMMAND
;
6629 case CMD_XMIT_BLS_RSP64_CX
:
6630 /* As BLS ABTS-ACC WQE is very different from other WQEs,
6631 * we re-construct this WQE here based on information in
6632 * iocbq from scratch.
6634 memset(wqe
, 0, sizeof(union lpfc_wqe
));
6635 /* OX_ID is invariable to who sent ABTS to CT exchange */
6636 bf_set(xmit_bls_rsp64_oxid
, &wqe
->xmit_bls_rsp
,
6637 bf_get(lpfc_abts_oxid
, &iocbq
->iocb
.un
.bls_acc
));
6638 if (bf_get(lpfc_abts_orig
, &iocbq
->iocb
.un
.bls_acc
) ==
6639 LPFC_ABTS_UNSOL_INT
) {
6640 /* ABTS sent by initiator to CT exchange, the
6641 * RX_ID field will be filled with the newly
6642 * allocated responder XRI.
6644 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6645 iocbq
->sli4_xritag
);
6647 /* ABTS sent by responder to CT exchange, the
6648 * RX_ID field will be filled with the responder
6651 bf_set(xmit_bls_rsp64_rxid
, &wqe
->xmit_bls_rsp
,
6652 bf_get(lpfc_abts_rxid
, &iocbq
->iocb
.un
.bls_acc
));
6654 bf_set(xmit_bls_rsp64_seqcnthi
, &wqe
->xmit_bls_rsp
, 0xffff);
6655 bf_set(wqe_xmit_bls_pt
, &wqe
->xmit_bls_rsp
.wqe_dest
, 0x1);
6656 bf_set(wqe_ctxt_tag
, &wqe
->xmit_bls_rsp
.wqe_com
,
6657 iocbq
->iocb
.ulpContext
);
6658 bf_set(wqe_qosd
, &wqe
->xmit_bls_rsp
.wqe_com
, 1);
6659 bf_set(wqe_lenloc
, &wqe
->xmit_bls_rsp
.wqe_com
,
6660 LPFC_WQE_LENLOC_NONE
);
6661 /* Overwrite the pre-set comnd type with OTHER_COMMAND */
6662 command_type
= OTHER_COMMAND
;
6664 case CMD_XRI_ABORTED_CX
:
6665 case CMD_CREATE_XRI_CR
: /* Do we expect to use this? */
6666 case CMD_IOCB_FCP_IBIDIR64_CR
: /* bidirectional xfer */
6667 case CMD_FCP_TSEND64_CX
: /* Target mode send xfer-ready */
6668 case CMD_FCP_TRSP64_CX
: /* Target mode rcv */
6669 case CMD_FCP_AUTO_TRSP_CX
: /* Auto target rsp */
6671 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
6672 "2014 Invalid command 0x%x\n",
6673 iocbq
->iocb
.ulpCommand
);
6677 bf_set(wqe_xri_tag
, &wqe
->generic
.wqe_com
, xritag
);
6678 bf_set(wqe_reqtag
, &wqe
->generic
.wqe_com
, iocbq
->iotag
);
6679 wqe
->generic
.wqe_com
.abort_tag
= abort_tag
;
6680 bf_set(wqe_cmd_type
, &wqe
->generic
.wqe_com
, command_type
);
6681 bf_set(wqe_cmnd
, &wqe
->generic
.wqe_com
, cmnd
);
6682 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, iocbq
->iocb
.ulpClass
);
6683 bf_set(wqe_cqid
, &wqe
->generic
.wqe_com
, LPFC_WQE_CQ_ID_DEFAULT
);
6688 * __lpfc_sli_issue_iocb_s4 - SLI4 device lockless ver of lpfc_sli_issue_iocb
6689 * @phba: Pointer to HBA context object.
6690 * @ring_number: SLI ring number to issue iocb on.
6691 * @piocb: Pointer to command iocb.
6692 * @flag: Flag indicating if this command can be put into txq.
6694 * __lpfc_sli_issue_iocb_s4 is used by other functions in the driver to issue
6695 * an iocb command to an HBA with SLI-4 interface spec.
6697 * This function is called with hbalock held. The function will return success
6698 * after it successfully submit the iocb to firmware or after adding to the
6702 __lpfc_sli_issue_iocb_s4(struct lpfc_hba
*phba
, uint32_t ring_number
,
6703 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6705 struct lpfc_sglq
*sglq
;
6707 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[ring_number
];
6709 if (piocb
->sli4_xritag
== NO_XRI
) {
6710 if (piocb
->iocb
.ulpCommand
== CMD_ABORT_XRI_CN
||
6711 piocb
->iocb
.ulpCommand
== CMD_CLOSE_XRI_CN
)
6714 if (pring
->txq_cnt
) {
6715 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6716 __lpfc_sli_ringtx_put(phba
,
6718 return IOCB_SUCCESS
;
6723 sglq
= __lpfc_sli_get_sglq(phba
, piocb
);
6725 if (!(flag
& SLI_IOCB_RET_IOCB
)) {
6726 __lpfc_sli_ringtx_put(phba
,
6729 return IOCB_SUCCESS
;
6735 } else if (piocb
->iocb_flag
& LPFC_IO_FCP
) {
6736 sglq
= NULL
; /* These IO's already have an XRI and
6740 /* This is a continuation of a commandi,(CX) so this
6741 * sglq is on the active list
6743 sglq
= __lpfc_get_active_sglq(phba
, piocb
->sli4_xritag
);
6749 piocb
->sli4_xritag
= sglq
->sli4_xritag
;
6751 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocb
, sglq
))
6755 if (lpfc_sli4_iocb2wqe(phba
, piocb
, &wqe
))
6758 if ((piocb
->iocb_flag
& LPFC_IO_FCP
) ||
6759 (piocb
->iocb_flag
& LPFC_USE_FCPWQIDX
)) {
6761 * For FCP command IOCB, get a new WQ index to distribute
6762 * WQE across the WQsr. On the other hand, for abort IOCB,
6763 * it carries the same WQ index to the original command
6766 if (piocb
->iocb_flag
& LPFC_IO_FCP
)
6767 piocb
->fcp_wqidx
= lpfc_sli4_scmd_to_wqidx_distr(phba
);
6768 if (lpfc_sli4_wq_put(phba
->sli4_hba
.fcp_wq
[piocb
->fcp_wqidx
],
6772 if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
6775 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocb
);
6781 * __lpfc_sli_issue_iocb - Wrapper func of lockless version for issuing iocb
6783 * This routine wraps the actual lockless version for issusing IOCB function
6784 * pointer from the lpfc_hba struct.
6787 * IOCB_ERROR - Error
6788 * IOCB_SUCCESS - Success
6792 __lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6793 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6795 return phba
->__lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6799 * lpfc_sli_api_table_setup - Set up sli api fucntion jump table
6800 * @phba: The hba struct for which this call is being executed.
6801 * @dev_grp: The HBA PCI-Device group number.
6803 * This routine sets up the SLI interface API function jump table in @phba
6805 * Returns: 0 - success, -ENODEV - failure.
6808 lpfc_sli_api_table_setup(struct lpfc_hba
*phba
, uint8_t dev_grp
)
6812 case LPFC_PCI_DEV_LP
:
6813 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s3
;
6814 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s3
;
6816 case LPFC_PCI_DEV_OC
:
6817 phba
->__lpfc_sli_issue_iocb
= __lpfc_sli_issue_iocb_s4
;
6818 phba
->__lpfc_sli_release_iocbq
= __lpfc_sli_release_iocbq_s4
;
6821 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
6822 "1419 Invalid HBA PCI-device group: 0x%x\n",
6827 phba
->lpfc_get_iocb_from_iocbq
= lpfc_get_iocb_from_iocbq
;
6832 * lpfc_sli_issue_iocb - Wrapper function for __lpfc_sli_issue_iocb
6833 * @phba: Pointer to HBA context object.
6834 * @pring: Pointer to driver SLI ring object.
6835 * @piocb: Pointer to command iocb.
6836 * @flag: Flag indicating if this command can be put into txq.
6838 * lpfc_sli_issue_iocb is a wrapper around __lpfc_sli_issue_iocb
6839 * function. This function gets the hbalock and calls
6840 * __lpfc_sli_issue_iocb function and will return the error returned
6841 * by __lpfc_sli_issue_iocb function. This wrapper is used by
6842 * functions which do not hold hbalock.
6845 lpfc_sli_issue_iocb(struct lpfc_hba
*phba
, uint32_t ring_number
,
6846 struct lpfc_iocbq
*piocb
, uint32_t flag
)
6848 unsigned long iflags
;
6851 spin_lock_irqsave(&phba
->hbalock
, iflags
);
6852 rc
= __lpfc_sli_issue_iocb(phba
, ring_number
, piocb
, flag
);
6853 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
6859 * lpfc_extra_ring_setup - Extra ring setup function
6860 * @phba: Pointer to HBA context object.
6862 * This function is called while driver attaches with the
6863 * HBA to setup the extra ring. The extra ring is used
6864 * only when driver needs to support target mode functionality
6865 * or IP over FC functionalities.
6867 * This function is called with no lock held.
6870 lpfc_extra_ring_setup( struct lpfc_hba
*phba
)
6872 struct lpfc_sli
*psli
;
6873 struct lpfc_sli_ring
*pring
;
6877 /* Adjust cmd/rsp ring iocb entries more evenly */
6879 /* Take some away from the FCP ring */
6880 pring
= &psli
->ring
[psli
->fcp_ring
];
6881 pring
->numCiocb
-= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6882 pring
->numRiocb
-= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6883 pring
->numCiocb
-= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6884 pring
->numRiocb
-= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6886 /* and give them to the extra ring */
6887 pring
= &psli
->ring
[psli
->extra_ring
];
6889 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
6890 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
6891 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
6892 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
6894 /* Setup default profile for this ring */
6895 pring
->iotag_max
= 4096;
6896 pring
->num_mask
= 1;
6897 pring
->prt
[0].profile
= 0; /* Mask 0 */
6898 pring
->prt
[0].rctl
= phba
->cfg_multi_ring_rctl
;
6899 pring
->prt
[0].type
= phba
->cfg_multi_ring_type
;
6900 pring
->prt
[0].lpfc_sli_rcv_unsol_event
= NULL
;
6905 * lpfc_sli_async_event_handler - ASYNC iocb handler function
6906 * @phba: Pointer to HBA context object.
6907 * @pring: Pointer to driver SLI ring object.
6908 * @iocbq: Pointer to iocb object.
6910 * This function is called by the slow ring event handler
6911 * function when there is an ASYNC event iocb in the ring.
6912 * This function is called with no lock held.
6913 * Currently this function handles only temperature related
6914 * ASYNC events. The function decodes the temperature sensor
6915 * event message and posts events for the management applications.
6918 lpfc_sli_async_event_handler(struct lpfc_hba
* phba
,
6919 struct lpfc_sli_ring
* pring
, struct lpfc_iocbq
* iocbq
)
6924 struct temp_event temp_event_data
;
6925 struct Scsi_Host
*shost
;
6928 icmd
= &iocbq
->iocb
;
6929 evt_code
= icmd
->un
.asyncstat
.evt_code
;
6930 temp
= icmd
->ulpContext
;
6932 if ((evt_code
!= ASYNC_TEMP_WARN
) &&
6933 (evt_code
!= ASYNC_TEMP_SAFE
)) {
6934 iocb_w
= (uint32_t *) icmd
;
6935 lpfc_printf_log(phba
,
6938 "0346 Ring %d handler: unexpected ASYNC_STATUS"
6940 "W0 0x%08x W1 0x%08x W2 0x%08x W3 0x%08x\n"
6941 "W4 0x%08x W5 0x%08x W6 0x%08x W7 0x%08x\n"
6942 "W8 0x%08x W9 0x%08x W10 0x%08x W11 0x%08x\n"
6943 "W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
6945 icmd
->un
.asyncstat
.evt_code
,
6946 iocb_w
[0], iocb_w
[1], iocb_w
[2], iocb_w
[3],
6947 iocb_w
[4], iocb_w
[5], iocb_w
[6], iocb_w
[7],
6948 iocb_w
[8], iocb_w
[9], iocb_w
[10], iocb_w
[11],
6949 iocb_w
[12], iocb_w
[13], iocb_w
[14], iocb_w
[15]);
6953 temp_event_data
.data
= (uint32_t)temp
;
6954 temp_event_data
.event_type
= FC_REG_TEMPERATURE_EVENT
;
6955 if (evt_code
== ASYNC_TEMP_WARN
) {
6956 temp_event_data
.event_code
= LPFC_THRESHOLD_TEMP
;
6957 lpfc_printf_log(phba
,
6960 "0347 Adapter is very hot, please take "
6961 "corrective action. temperature : %d Celsius\n",
6964 if (evt_code
== ASYNC_TEMP_SAFE
) {
6965 temp_event_data
.event_code
= LPFC_NORMAL_TEMP
;
6966 lpfc_printf_log(phba
,
6969 "0340 Adapter temperature is OK now. "
6970 "temperature : %d Celsius\n",
6974 /* Send temperature change event to applications */
6975 shost
= lpfc_shost_from_vport(phba
->pport
);
6976 fc_host_post_vendor_event(shost
, fc_get_event_number(),
6977 sizeof(temp_event_data
), (char *) &temp_event_data
,
6984 * lpfc_sli_setup - SLI ring setup function
6985 * @phba: Pointer to HBA context object.
6987 * lpfc_sli_setup sets up rings of the SLI interface with
6988 * number of iocbs per ring and iotags. This function is
6989 * called while driver attach to the HBA and before the
6990 * interrupts are enabled. So there is no need for locking.
6992 * This function always returns 0.
6995 lpfc_sli_setup(struct lpfc_hba
*phba
)
6997 int i
, totiocbsize
= 0;
6998 struct lpfc_sli
*psli
= &phba
->sli
;
6999 struct lpfc_sli_ring
*pring
;
7001 psli
->num_rings
= MAX_CONFIGURED_RINGS
;
7003 psli
->fcp_ring
= LPFC_FCP_RING
;
7004 psli
->next_ring
= LPFC_FCP_NEXT_RING
;
7005 psli
->extra_ring
= LPFC_EXTRA_RING
;
7007 psli
->iocbq_lookup
= NULL
;
7008 psli
->iocbq_lookup_len
= 0;
7009 psli
->last_iotag
= 0;
7011 for (i
= 0; i
< psli
->num_rings
; i
++) {
7012 pring
= &psli
->ring
[i
];
7014 case LPFC_FCP_RING
: /* ring 0 - FCP */
7015 /* numCiocb and numRiocb are used in config_port */
7016 pring
->numCiocb
= SLI2_IOCB_CMD_R0_ENTRIES
;
7017 pring
->numRiocb
= SLI2_IOCB_RSP_R0_ENTRIES
;
7018 pring
->numCiocb
+= SLI2_IOCB_CMD_R1XTRA_ENTRIES
;
7019 pring
->numRiocb
+= SLI2_IOCB_RSP_R1XTRA_ENTRIES
;
7020 pring
->numCiocb
+= SLI2_IOCB_CMD_R3XTRA_ENTRIES
;
7021 pring
->numRiocb
+= SLI2_IOCB_RSP_R3XTRA_ENTRIES
;
7022 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7023 SLI3_IOCB_CMD_SIZE
:
7025 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7026 SLI3_IOCB_RSP_SIZE
:
7028 pring
->iotag_ctr
= 0;
7030 (phba
->cfg_hba_queue_depth
* 2);
7031 pring
->fast_iotag
= pring
->iotag_max
;
7032 pring
->num_mask
= 0;
7034 case LPFC_EXTRA_RING
: /* ring 1 - EXTRA */
7035 /* numCiocb and numRiocb are used in config_port */
7036 pring
->numCiocb
= SLI2_IOCB_CMD_R1_ENTRIES
;
7037 pring
->numRiocb
= SLI2_IOCB_RSP_R1_ENTRIES
;
7038 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7039 SLI3_IOCB_CMD_SIZE
:
7041 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7042 SLI3_IOCB_RSP_SIZE
:
7044 pring
->iotag_max
= phba
->cfg_hba_queue_depth
;
7045 pring
->num_mask
= 0;
7047 case LPFC_ELS_RING
: /* ring 2 - ELS / CT */
7048 /* numCiocb and numRiocb are used in config_port */
7049 pring
->numCiocb
= SLI2_IOCB_CMD_R2_ENTRIES
;
7050 pring
->numRiocb
= SLI2_IOCB_RSP_R2_ENTRIES
;
7051 pring
->sizeCiocb
= (phba
->sli_rev
== 3) ?
7052 SLI3_IOCB_CMD_SIZE
:
7054 pring
->sizeRiocb
= (phba
->sli_rev
== 3) ?
7055 SLI3_IOCB_RSP_SIZE
:
7057 pring
->fast_iotag
= 0;
7058 pring
->iotag_ctr
= 0;
7059 pring
->iotag_max
= 4096;
7060 pring
->lpfc_sli_rcv_async_status
=
7061 lpfc_sli_async_event_handler
;
7062 pring
->num_mask
= LPFC_MAX_RING_MASK
;
7063 pring
->prt
[0].profile
= 0; /* Mask 0 */
7064 pring
->prt
[0].rctl
= FC_RCTL_ELS_REQ
;
7065 pring
->prt
[0].type
= FC_TYPE_ELS
;
7066 pring
->prt
[0].lpfc_sli_rcv_unsol_event
=
7067 lpfc_els_unsol_event
;
7068 pring
->prt
[1].profile
= 0; /* Mask 1 */
7069 pring
->prt
[1].rctl
= FC_RCTL_ELS_REP
;
7070 pring
->prt
[1].type
= FC_TYPE_ELS
;
7071 pring
->prt
[1].lpfc_sli_rcv_unsol_event
=
7072 lpfc_els_unsol_event
;
7073 pring
->prt
[2].profile
= 0; /* Mask 2 */
7074 /* NameServer Inquiry */
7075 pring
->prt
[2].rctl
= FC_RCTL_DD_UNSOL_CTL
;
7077 pring
->prt
[2].type
= FC_TYPE_CT
;
7078 pring
->prt
[2].lpfc_sli_rcv_unsol_event
=
7079 lpfc_ct_unsol_event
;
7080 pring
->prt
[3].profile
= 0; /* Mask 3 */
7081 /* NameServer response */
7082 pring
->prt
[3].rctl
= FC_RCTL_DD_SOL_CTL
;
7084 pring
->prt
[3].type
= FC_TYPE_CT
;
7085 pring
->prt
[3].lpfc_sli_rcv_unsol_event
=
7086 lpfc_ct_unsol_event
;
7087 /* abort unsolicited sequence */
7088 pring
->prt
[4].profile
= 0; /* Mask 4 */
7089 pring
->prt
[4].rctl
= FC_RCTL_BA_ABTS
;
7090 pring
->prt
[4].type
= FC_TYPE_BLS
;
7091 pring
->prt
[4].lpfc_sli_rcv_unsol_event
=
7092 lpfc_sli4_ct_abort_unsol_event
;
7095 totiocbsize
+= (pring
->numCiocb
* pring
->sizeCiocb
) +
7096 (pring
->numRiocb
* pring
->sizeRiocb
);
7098 if (totiocbsize
> MAX_SLIM_IOCB_SIZE
) {
7099 /* Too many cmd / rsp ring entries in SLI2 SLIM */
7100 printk(KERN_ERR
"%d:0462 Too many cmd / rsp ring entries in "
7101 "SLI2 SLIM Data: x%x x%lx\n",
7102 phba
->brd_no
, totiocbsize
,
7103 (unsigned long) MAX_SLIM_IOCB_SIZE
);
7105 if (phba
->cfg_multi_ring_support
== 2)
7106 lpfc_extra_ring_setup(phba
);
7112 * lpfc_sli_queue_setup - Queue initialization function
7113 * @phba: Pointer to HBA context object.
7115 * lpfc_sli_queue_setup sets up mailbox queues and iocb queues for each
7116 * ring. This function also initializes ring indices of each ring.
7117 * This function is called during the initialization of the SLI
7118 * interface of an HBA.
7119 * This function is called with no lock held and always returns
7123 lpfc_sli_queue_setup(struct lpfc_hba
*phba
)
7125 struct lpfc_sli
*psli
;
7126 struct lpfc_sli_ring
*pring
;
7130 spin_lock_irq(&phba
->hbalock
);
7131 INIT_LIST_HEAD(&psli
->mboxq
);
7132 INIT_LIST_HEAD(&psli
->mboxq_cmpl
);
7133 /* Initialize list headers for txq and txcmplq as double linked lists */
7134 for (i
= 0; i
< psli
->num_rings
; i
++) {
7135 pring
= &psli
->ring
[i
];
7137 pring
->next_cmdidx
= 0;
7138 pring
->local_getidx
= 0;
7140 INIT_LIST_HEAD(&pring
->txq
);
7141 INIT_LIST_HEAD(&pring
->txcmplq
);
7142 INIT_LIST_HEAD(&pring
->iocb_continueq
);
7143 INIT_LIST_HEAD(&pring
->iocb_continue_saveq
);
7144 INIT_LIST_HEAD(&pring
->postbufq
);
7146 spin_unlock_irq(&phba
->hbalock
);
7151 * lpfc_sli_mbox_sys_flush - Flush mailbox command sub-system
7152 * @phba: Pointer to HBA context object.
7154 * This routine flushes the mailbox command subsystem. It will unconditionally
7155 * flush all the mailbox commands in the three possible stages in the mailbox
7156 * command sub-system: pending mailbox command queue; the outstanding mailbox
7157 * command; and completed mailbox command queue. It is caller's responsibility
7158 * to make sure that the driver is in the proper state to flush the mailbox
7159 * command sub-system. Namely, the posting of mailbox commands into the
7160 * pending mailbox command queue from the various clients must be stopped;
7161 * either the HBA is in a state that it will never works on the outstanding
7162 * mailbox command (such as in EEH or ERATT conditions) or the outstanding
7163 * mailbox command has been completed.
7166 lpfc_sli_mbox_sys_flush(struct lpfc_hba
*phba
)
7168 LIST_HEAD(completions
);
7169 struct lpfc_sli
*psli
= &phba
->sli
;
7171 unsigned long iflag
;
7173 /* Flush all the mailbox commands in the mbox system */
7174 spin_lock_irqsave(&phba
->hbalock
, iflag
);
7175 /* The pending mailbox command queue */
7176 list_splice_init(&phba
->sli
.mboxq
, &completions
);
7177 /* The outstanding active mailbox command */
7178 if (psli
->mbox_active
) {
7179 list_add_tail(&psli
->mbox_active
->list
, &completions
);
7180 psli
->mbox_active
= NULL
;
7181 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
7183 /* The completed mailbox command queue */
7184 list_splice_init(&phba
->sli
.mboxq_cmpl
, &completions
);
7185 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
7187 /* Return all flushed mailbox commands with MBX_NOT_FINISHED status */
7188 while (!list_empty(&completions
)) {
7189 list_remove_head(&completions
, pmb
, LPFC_MBOXQ_t
, list
);
7190 pmb
->u
.mb
.mbxStatus
= MBX_NOT_FINISHED
;
7192 pmb
->mbox_cmpl(phba
, pmb
);
7197 * lpfc_sli_host_down - Vport cleanup function
7198 * @vport: Pointer to virtual port object.
7200 * lpfc_sli_host_down is called to clean up the resources
7201 * associated with a vport before destroying virtual
7202 * port data structures.
7203 * This function does following operations:
7204 * - Free discovery resources associated with this virtual
7206 * - Free iocbs associated with this virtual port in
7208 * - Send abort for all iocb commands associated with this
7211 * This function is called with no lock held and always returns 1.
7214 lpfc_sli_host_down(struct lpfc_vport
*vport
)
7216 LIST_HEAD(completions
);
7217 struct lpfc_hba
*phba
= vport
->phba
;
7218 struct lpfc_sli
*psli
= &phba
->sli
;
7219 struct lpfc_sli_ring
*pring
;
7220 struct lpfc_iocbq
*iocb
, *next_iocb
;
7222 unsigned long flags
= 0;
7223 uint16_t prev_pring_flag
;
7225 lpfc_cleanup_discovery_resources(vport
);
7227 spin_lock_irqsave(&phba
->hbalock
, flags
);
7228 for (i
= 0; i
< psli
->num_rings
; i
++) {
7229 pring
= &psli
->ring
[i
];
7230 prev_pring_flag
= pring
->flag
;
7231 /* Only slow rings */
7232 if (pring
->ringno
== LPFC_ELS_RING
) {
7233 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
7234 /* Set the lpfc data pending flag */
7235 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
7238 * Error everything on the txq since these iocbs have not been
7239 * given to the FW yet.
7241 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txq
, list
) {
7242 if (iocb
->vport
!= vport
)
7244 list_move_tail(&iocb
->list
, &completions
);
7248 /* Next issue ABTS for everything on the txcmplq */
7249 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
,
7251 if (iocb
->vport
!= vport
)
7253 lpfc_sli_issue_abort_iotag(phba
, pring
, iocb
);
7256 pring
->flag
= prev_pring_flag
;
7259 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7261 /* Cancel all the IOCBs from the completions list */
7262 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7268 * lpfc_sli_hba_down - Resource cleanup function for the HBA
7269 * @phba: Pointer to HBA context object.
7271 * This function cleans up all iocb, buffers, mailbox commands
7272 * while shutting down the HBA. This function is called with no
7273 * lock held and always returns 1.
7274 * This function does the following to cleanup driver resources:
7275 * - Free discovery resources for each virtual port
7276 * - Cleanup any pending fabric iocbs
7277 * - Iterate through the iocb txq and free each entry
7279 * - Free up any buffer posted to the HBA
7280 * - Free mailbox commands in the mailbox queue.
7283 lpfc_sli_hba_down(struct lpfc_hba
*phba
)
7285 LIST_HEAD(completions
);
7286 struct lpfc_sli
*psli
= &phba
->sli
;
7287 struct lpfc_sli_ring
*pring
;
7288 struct lpfc_dmabuf
*buf_ptr
;
7289 unsigned long flags
= 0;
7292 /* Shutdown the mailbox command sub-system */
7293 lpfc_sli_mbox_sys_shutdown(phba
);
7295 lpfc_hba_down_prep(phba
);
7297 lpfc_fabric_abort_hba(phba
);
7299 spin_lock_irqsave(&phba
->hbalock
, flags
);
7300 for (i
= 0; i
< psli
->num_rings
; i
++) {
7301 pring
= &psli
->ring
[i
];
7302 /* Only slow rings */
7303 if (pring
->ringno
== LPFC_ELS_RING
) {
7304 pring
->flag
|= LPFC_DEFERRED_RING_EVENT
;
7305 /* Set the lpfc data pending flag */
7306 set_bit(LPFC_DATA_READY
, &phba
->data_flags
);
7310 * Error everything on the txq since these iocbs have not been
7311 * given to the FW yet.
7313 list_splice_init(&pring
->txq
, &completions
);
7317 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7319 /* Cancel all the IOCBs from the completions list */
7320 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7323 spin_lock_irqsave(&phba
->hbalock
, flags
);
7324 list_splice_init(&phba
->elsbuf
, &completions
);
7325 phba
->elsbuf_cnt
= 0;
7326 phba
->elsbuf_prev_cnt
= 0;
7327 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
7329 while (!list_empty(&completions
)) {
7330 list_remove_head(&completions
, buf_ptr
,
7331 struct lpfc_dmabuf
, list
);
7332 lpfc_mbuf_free(phba
, buf_ptr
->virt
, buf_ptr
->phys
);
7336 /* Return any active mbox cmds */
7337 del_timer_sync(&psli
->mbox_tmo
);
7339 spin_lock_irqsave(&phba
->pport
->work_port_lock
, flags
);
7340 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
7341 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, flags
);
7347 * lpfc_sli_pcimem_bcopy - SLI memory copy function
7348 * @srcp: Source memory pointer.
7349 * @destp: Destination memory pointer.
7350 * @cnt: Number of words required to be copied.
7352 * This function is used for copying data between driver memory
7353 * and the SLI memory. This function also changes the endianness
7354 * of each word if native endianness is different from SLI
7355 * endianness. This function can be called with or without
7359 lpfc_sli_pcimem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
7361 uint32_t *src
= srcp
;
7362 uint32_t *dest
= destp
;
7366 for (i
= 0; i
< (int)cnt
; i
+= sizeof (uint32_t)) {
7368 ldata
= le32_to_cpu(ldata
);
7377 * lpfc_sli_bemem_bcopy - SLI memory copy function
7378 * @srcp: Source memory pointer.
7379 * @destp: Destination memory pointer.
7380 * @cnt: Number of words required to be copied.
7382 * This function is used for copying data between a data structure
7383 * with big endian representation to local endianness.
7384 * This function can be called with or without lock.
7387 lpfc_sli_bemem_bcopy(void *srcp
, void *destp
, uint32_t cnt
)
7389 uint32_t *src
= srcp
;
7390 uint32_t *dest
= destp
;
7394 for (i
= 0; i
< (int)cnt
; i
+= sizeof(uint32_t)) {
7396 ldata
= be32_to_cpu(ldata
);
7404 * lpfc_sli_ringpostbuf_put - Function to add a buffer to postbufq
7405 * @phba: Pointer to HBA context object.
7406 * @pring: Pointer to driver SLI ring object.
7407 * @mp: Pointer to driver buffer object.
7409 * This function is called with no lock held.
7410 * It always return zero after adding the buffer to the postbufq
7414 lpfc_sli_ringpostbuf_put(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7415 struct lpfc_dmabuf
*mp
)
7417 /* Stick struct lpfc_dmabuf at end of postbufq so driver can look it up
7419 spin_lock_irq(&phba
->hbalock
);
7420 list_add_tail(&mp
->list
, &pring
->postbufq
);
7421 pring
->postbufq_cnt
++;
7422 spin_unlock_irq(&phba
->hbalock
);
7427 * lpfc_sli_get_buffer_tag - allocates a tag for a CMD_QUE_XRI64_CX buffer
7428 * @phba: Pointer to HBA context object.
7430 * When HBQ is enabled, buffers are searched based on tags. This function
7431 * allocates a tag for buffer posted using CMD_QUE_XRI64_CX iocb. The
7432 * tag is bit wise or-ed with QUE_BUFTAG_BIT to make sure that the tag
7433 * does not conflict with tags of buffer posted for unsolicited events.
7434 * The function returns the allocated tag. The function is called with
7438 lpfc_sli_get_buffer_tag(struct lpfc_hba
*phba
)
7440 spin_lock_irq(&phba
->hbalock
);
7441 phba
->buffer_tag_count
++;
7443 * Always set the QUE_BUFTAG_BIT to distiguish between
7444 * a tag assigned by HBQ.
7446 phba
->buffer_tag_count
|= QUE_BUFTAG_BIT
;
7447 spin_unlock_irq(&phba
->hbalock
);
7448 return phba
->buffer_tag_count
;
7452 * lpfc_sli_ring_taggedbuf_get - find HBQ buffer associated with given tag
7453 * @phba: Pointer to HBA context object.
7454 * @pring: Pointer to driver SLI ring object.
7457 * Buffers posted using CMD_QUE_XRI64_CX iocb are in pring->postbufq
7458 * list. After HBA DMA data to these buffers, CMD_IOCB_RET_XRI64_CX
7459 * iocb is posted to the response ring with the tag of the buffer.
7460 * This function searches the pring->postbufq list using the tag
7461 * to find buffer associated with CMD_IOCB_RET_XRI64_CX
7462 * iocb. If the buffer is found then lpfc_dmabuf object of the
7463 * buffer is returned to the caller else NULL is returned.
7464 * This function is called with no lock held.
7466 struct lpfc_dmabuf
*
7467 lpfc_sli_ring_taggedbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7470 struct lpfc_dmabuf
*mp
, *next_mp
;
7471 struct list_head
*slp
= &pring
->postbufq
;
7473 /* Search postbufq, from the begining, looking for a match on tag */
7474 spin_lock_irq(&phba
->hbalock
);
7475 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7476 if (mp
->buffer_tag
== tag
) {
7477 list_del_init(&mp
->list
);
7478 pring
->postbufq_cnt
--;
7479 spin_unlock_irq(&phba
->hbalock
);
7484 spin_unlock_irq(&phba
->hbalock
);
7485 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7486 "0402 Cannot find virtual addr for buffer tag on "
7487 "ring %d Data x%lx x%p x%p x%x\n",
7488 pring
->ringno
, (unsigned long) tag
,
7489 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7495 * lpfc_sli_ringpostbuf_get - search buffers for unsolicited CT and ELS events
7496 * @phba: Pointer to HBA context object.
7497 * @pring: Pointer to driver SLI ring object.
7498 * @phys: DMA address of the buffer.
7500 * This function searches the buffer list using the dma_address
7501 * of unsolicited event to find the driver's lpfc_dmabuf object
7502 * corresponding to the dma_address. The function returns the
7503 * lpfc_dmabuf object if a buffer is found else it returns NULL.
7504 * This function is called by the ct and els unsolicited event
7505 * handlers to get the buffer associated with the unsolicited
7508 * This function is called with no lock held.
7510 struct lpfc_dmabuf
*
7511 lpfc_sli_ringpostbuf_get(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7514 struct lpfc_dmabuf
*mp
, *next_mp
;
7515 struct list_head
*slp
= &pring
->postbufq
;
7517 /* Search postbufq, from the begining, looking for a match on phys */
7518 spin_lock_irq(&phba
->hbalock
);
7519 list_for_each_entry_safe(mp
, next_mp
, &pring
->postbufq
, list
) {
7520 if (mp
->phys
== phys
) {
7521 list_del_init(&mp
->list
);
7522 pring
->postbufq_cnt
--;
7523 spin_unlock_irq(&phba
->hbalock
);
7528 spin_unlock_irq(&phba
->hbalock
);
7529 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
7530 "0410 Cannot find virtual addr for mapped buf on "
7531 "ring %d Data x%llx x%p x%p x%x\n",
7532 pring
->ringno
, (unsigned long long)phys
,
7533 slp
->next
, slp
->prev
, pring
->postbufq_cnt
);
7538 * lpfc_sli_abort_els_cmpl - Completion handler for the els abort iocbs
7539 * @phba: Pointer to HBA context object.
7540 * @cmdiocb: Pointer to driver command iocb object.
7541 * @rspiocb: Pointer to driver response iocb object.
7543 * This function is the completion handler for the abort iocbs for
7544 * ELS commands. This function is called from the ELS ring event
7545 * handler with no lock held. This function frees memory resources
7546 * associated with the abort iocb.
7549 lpfc_sli_abort_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7550 struct lpfc_iocbq
*rspiocb
)
7552 IOCB_t
*irsp
= &rspiocb
->iocb
;
7553 uint16_t abort_iotag
, abort_context
;
7554 struct lpfc_iocbq
*abort_iocb
;
7555 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
7559 if (irsp
->ulpStatus
) {
7560 abort_context
= cmdiocb
->iocb
.un
.acxri
.abortContextTag
;
7561 abort_iotag
= cmdiocb
->iocb
.un
.acxri
.abortIoTag
;
7563 spin_lock_irq(&phba
->hbalock
);
7564 if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7565 if (abort_iotag
!= 0 &&
7566 abort_iotag
<= phba
->sli
.last_iotag
)
7568 phba
->sli
.iocbq_lookup
[abort_iotag
];
7570 /* For sli4 the abort_tag is the XRI,
7571 * so the abort routine puts the iotag of the iocb
7572 * being aborted in the context field of the abort
7575 abort_iocb
= phba
->sli
.iocbq_lookup
[abort_context
];
7578 * If the iocb is not found in Firmware queue the iocb
7579 * might have completed already. Do not free it again.
7581 if (irsp
->ulpStatus
== IOSTAT_LOCAL_REJECT
) {
7582 if (irsp
->un
.ulpWord
[4] != IOERR_NO_XRI
) {
7583 spin_unlock_irq(&phba
->hbalock
);
7584 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7587 /* For SLI4 the ulpContext field for abort IOCB
7588 * holds the iotag of the IOCB being aborted so
7589 * the local abort_context needs to be reset to
7590 * match the aborted IOCBs ulpContext.
7592 if (abort_iocb
&& phba
->sli_rev
== LPFC_SLI_REV4
)
7593 abort_context
= abort_iocb
->iocb
.ulpContext
;
7596 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
| LOG_SLI
,
7597 "0327 Cannot abort els iocb %p "
7598 "with tag %x context %x, abort status %x, "
7600 abort_iocb
, abort_iotag
, abort_context
,
7601 irsp
->ulpStatus
, irsp
->un
.ulpWord
[4]);
7603 * make sure we have the right iocbq before taking it
7604 * off the txcmplq and try to call completion routine.
7607 abort_iocb
->iocb
.ulpContext
!= abort_context
||
7608 (abort_iocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) == 0)
7609 spin_unlock_irq(&phba
->hbalock
);
7610 else if (phba
->sli_rev
< LPFC_SLI_REV4
) {
7612 * leave the SLI4 aborted command on the txcmplq
7613 * list and the command complete WCQE's XB bit
7614 * will tell whether the SGL (XRI) can be released
7615 * immediately or to the aborted SGL list for the
7616 * following abort XRI from the HBA.
7618 list_del_init(&abort_iocb
->list
);
7619 if (abort_iocb
->iocb_flag
& LPFC_IO_ON_Q
) {
7620 abort_iocb
->iocb_flag
&= ~LPFC_IO_ON_Q
;
7621 pring
->txcmplq_cnt
--;
7624 /* Firmware could still be in progress of DMAing
7625 * payload, so don't free data buffer till after
7628 abort_iocb
->iocb_flag
|= LPFC_DELAY_MEM_FREE
;
7629 abort_iocb
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
7630 spin_unlock_irq(&phba
->hbalock
);
7632 abort_iocb
->iocb
.ulpStatus
= IOSTAT_LOCAL_REJECT
;
7633 abort_iocb
->iocb
.un
.ulpWord
[4] = IOERR_ABORT_REQUESTED
;
7634 (abort_iocb
->iocb_cmpl
)(phba
, abort_iocb
, abort_iocb
);
7636 spin_unlock_irq(&phba
->hbalock
);
7639 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7644 * lpfc_ignore_els_cmpl - Completion handler for aborted ELS command
7645 * @phba: Pointer to HBA context object.
7646 * @cmdiocb: Pointer to driver command iocb object.
7647 * @rspiocb: Pointer to driver response iocb object.
7649 * The function is called from SLI ring event handler with no
7650 * lock held. This function is the completion handler for ELS commands
7651 * which are aborted. The function frees memory resources used for
7652 * the aborted ELS commands.
7655 lpfc_ignore_els_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7656 struct lpfc_iocbq
*rspiocb
)
7658 IOCB_t
*irsp
= &rspiocb
->iocb
;
7660 /* ELS cmd tag <ulpIoTag> completes */
7661 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
7662 "0139 Ignoring ELS cmd tag x%x completion Data: "
7664 irsp
->ulpIoTag
, irsp
->ulpStatus
,
7665 irsp
->un
.ulpWord
[4], irsp
->ulpTimeout
);
7666 if (cmdiocb
->iocb
.ulpCommand
== CMD_GEN_REQUEST64_CR
)
7667 lpfc_ct_free_iocb(phba
, cmdiocb
);
7669 lpfc_els_free_iocb(phba
, cmdiocb
);
7674 * lpfc_sli_abort_iotag_issue - Issue abort for a command iocb
7675 * @phba: Pointer to HBA context object.
7676 * @pring: Pointer to driver SLI ring object.
7677 * @cmdiocb: Pointer to driver command iocb object.
7679 * This function issues an abort iocb for the provided command iocb down to
7680 * the port. Other than the case the outstanding command iocb is an abort
7681 * request, this function issues abort out unconditionally. This function is
7682 * called with hbalock held. The function returns 0 when it fails due to
7683 * memory allocation failure or when the command iocb is an abort request.
7686 lpfc_sli_abort_iotag_issue(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7687 struct lpfc_iocbq
*cmdiocb
)
7689 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7690 struct lpfc_iocbq
*abtsiocbp
;
7691 IOCB_t
*icmd
= NULL
;
7692 IOCB_t
*iabt
= NULL
;
7696 * There are certain command types we don't want to abort. And we
7697 * don't want to abort commands that are already in the process of
7700 icmd
= &cmdiocb
->iocb
;
7701 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7702 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7703 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7706 /* issue ABTS for this IOCB based on iotag */
7707 abtsiocbp
= __lpfc_sli_get_iocbq(phba
);
7708 if (abtsiocbp
== NULL
)
7711 /* This signals the response to set the correct status
7712 * before calling the completion handler
7714 cmdiocb
->iocb_flag
|= LPFC_DRIVER_ABORTED
;
7716 iabt
= &abtsiocbp
->iocb
;
7717 iabt
->un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
7718 iabt
->un
.acxri
.abortContextTag
= icmd
->ulpContext
;
7719 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
7720 iabt
->un
.acxri
.abortIoTag
= cmdiocb
->sli4_xritag
;
7721 iabt
->un
.acxri
.abortContextTag
= cmdiocb
->iotag
;
7724 iabt
->un
.acxri
.abortIoTag
= icmd
->ulpIoTag
;
7726 iabt
->ulpClass
= icmd
->ulpClass
;
7728 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
7729 abtsiocbp
->fcp_wqidx
= cmdiocb
->fcp_wqidx
;
7730 if (cmdiocb
->iocb_flag
& LPFC_IO_FCP
)
7731 abtsiocbp
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
7733 if (phba
->link_state
>= LPFC_LINK_UP
)
7734 iabt
->ulpCommand
= CMD_ABORT_XRI_CN
;
7736 iabt
->ulpCommand
= CMD_CLOSE_XRI_CN
;
7738 abtsiocbp
->iocb_cmpl
= lpfc_sli_abort_els_cmpl
;
7740 lpfc_printf_vlog(vport
, KERN_INFO
, LOG_SLI
,
7741 "0339 Abort xri x%x, original iotag x%x, "
7742 "abort cmd iotag x%x\n",
7743 iabt
->un
.acxri
.abortIoTag
,
7744 iabt
->un
.acxri
.abortContextTag
,
7746 retval
= __lpfc_sli_issue_iocb(phba
, pring
->ringno
, abtsiocbp
, 0);
7749 __lpfc_sli_release_iocbq(phba
, abtsiocbp
);
7752 * Caller to this routine should check for IOCB_ERROR
7753 * and handle it properly. This routine no longer removes
7754 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7760 * lpfc_sli_issue_abort_iotag - Abort function for a command iocb
7761 * @phba: Pointer to HBA context object.
7762 * @pring: Pointer to driver SLI ring object.
7763 * @cmdiocb: Pointer to driver command iocb object.
7765 * This function issues an abort iocb for the provided command iocb. In case
7766 * of unloading, the abort iocb will not be issued to commands on the ELS
7767 * ring. Instead, the callback function shall be changed to those commands
7768 * so that nothing happens when them finishes. This function is called with
7769 * hbalock held. The function returns 0 when the command iocb is an abort
7773 lpfc_sli_issue_abort_iotag(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
,
7774 struct lpfc_iocbq
*cmdiocb
)
7776 struct lpfc_vport
*vport
= cmdiocb
->vport
;
7777 int retval
= IOCB_ERROR
;
7778 IOCB_t
*icmd
= NULL
;
7781 * There are certain command types we don't want to abort. And we
7782 * don't want to abort commands that are already in the process of
7785 icmd
= &cmdiocb
->iocb
;
7786 if (icmd
->ulpCommand
== CMD_ABORT_XRI_CN
||
7787 icmd
->ulpCommand
== CMD_CLOSE_XRI_CN
||
7788 (cmdiocb
->iocb_flag
& LPFC_DRIVER_ABORTED
) != 0)
7792 * If we're unloading, don't abort iocb on the ELS ring, but change
7793 * the callback so that nothing happens when it finishes.
7795 if ((vport
->load_flag
& FC_UNLOADING
) &&
7796 (pring
->ringno
== LPFC_ELS_RING
)) {
7797 if (cmdiocb
->iocb_flag
& LPFC_IO_FABRIC
)
7798 cmdiocb
->fabric_iocb_cmpl
= lpfc_ignore_els_cmpl
;
7800 cmdiocb
->iocb_cmpl
= lpfc_ignore_els_cmpl
;
7801 goto abort_iotag_exit
;
7804 /* Now, we try to issue the abort to the cmdiocb out */
7805 retval
= lpfc_sli_abort_iotag_issue(phba
, pring
, cmdiocb
);
7809 * Caller to this routine should check for IOCB_ERROR
7810 * and handle it properly. This routine no longer removes
7811 * iocb off txcmplq and call compl in case of IOCB_ERROR.
7817 * lpfc_sli_iocb_ring_abort - Unconditionally abort all iocbs on an iocb ring
7818 * @phba: Pointer to HBA context object.
7819 * @pring: Pointer to driver SLI ring object.
7821 * This function aborts all iocbs in the given ring and frees all the iocb
7822 * objects in txq. This function issues abort iocbs unconditionally for all
7823 * the iocb commands in txcmplq. The iocbs in the txcmplq is not guaranteed
7824 * to complete before the return of this function. The caller is not required
7825 * to hold any locks.
7828 lpfc_sli_iocb_ring_abort(struct lpfc_hba
*phba
, struct lpfc_sli_ring
*pring
)
7830 LIST_HEAD(completions
);
7831 struct lpfc_iocbq
*iocb
, *next_iocb
;
7833 if (pring
->ringno
== LPFC_ELS_RING
)
7834 lpfc_fabric_abort_hba(phba
);
7836 spin_lock_irq(&phba
->hbalock
);
7838 /* Take off all the iocbs on txq for cancelling */
7839 list_splice_init(&pring
->txq
, &completions
);
7842 /* Next issue ABTS for everything on the txcmplq */
7843 list_for_each_entry_safe(iocb
, next_iocb
, &pring
->txcmplq
, list
)
7844 lpfc_sli_abort_iotag_issue(phba
, pring
, iocb
);
7846 spin_unlock_irq(&phba
->hbalock
);
7848 /* Cancel all the IOCBs from the completions list */
7849 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
7854 * lpfc_sli_hba_iocb_abort - Abort all iocbs to an hba.
7855 * @phba: pointer to lpfc HBA data structure.
7857 * This routine will abort all pending and outstanding iocbs to an HBA.
7860 lpfc_sli_hba_iocb_abort(struct lpfc_hba
*phba
)
7862 struct lpfc_sli
*psli
= &phba
->sli
;
7863 struct lpfc_sli_ring
*pring
;
7866 for (i
= 0; i
< psli
->num_rings
; i
++) {
7867 pring
= &psli
->ring
[i
];
7868 lpfc_sli_iocb_ring_abort(phba
, pring
);
7873 * lpfc_sli_validate_fcp_iocb - find commands associated with a vport or LUN
7874 * @iocbq: Pointer to driver iocb object.
7875 * @vport: Pointer to driver virtual port object.
7876 * @tgt_id: SCSI ID of the target.
7877 * @lun_id: LUN ID of the scsi device.
7878 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST
7880 * This function acts as an iocb filter for functions which abort or count
7881 * all FCP iocbs pending on a lun/SCSI target/SCSI host. It will return
7882 * 0 if the filtering criteria is met for the given iocb and will return
7883 * 1 if the filtering criteria is not met.
7884 * If ctx_cmd == LPFC_CTX_LUN, the function returns 0 only if the
7885 * given iocb is for the SCSI device specified by vport, tgt_id and
7887 * If ctx_cmd == LPFC_CTX_TGT, the function returns 0 only if the
7888 * given iocb is for the SCSI target specified by vport and tgt_id
7890 * If ctx_cmd == LPFC_CTX_HOST, the function returns 0 only if the
7891 * given iocb is for the SCSI host associated with the given vport.
7892 * This function is called with no locks held.
7895 lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq
*iocbq
, struct lpfc_vport
*vport
,
7896 uint16_t tgt_id
, uint64_t lun_id
,
7897 lpfc_ctx_cmd ctx_cmd
)
7899 struct lpfc_scsi_buf
*lpfc_cmd
;
7902 if (!(iocbq
->iocb_flag
& LPFC_IO_FCP
))
7905 if (iocbq
->vport
!= vport
)
7908 lpfc_cmd
= container_of(iocbq
, struct lpfc_scsi_buf
, cur_iocbq
);
7910 if (lpfc_cmd
->pCmd
== NULL
)
7915 if ((lpfc_cmd
->rdata
->pnode
) &&
7916 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
) &&
7917 (scsilun_to_int(&lpfc_cmd
->fcp_cmnd
->fcp_lun
) == lun_id
))
7921 if ((lpfc_cmd
->rdata
->pnode
) &&
7922 (lpfc_cmd
->rdata
->pnode
->nlp_sid
== tgt_id
))
7929 printk(KERN_ERR
"%s: Unknown context cmd type, value %d\n",
7938 * lpfc_sli_sum_iocb - Function to count the number of FCP iocbs pending
7939 * @vport: Pointer to virtual port.
7940 * @tgt_id: SCSI ID of the target.
7941 * @lun_id: LUN ID of the scsi device.
7942 * @ctx_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
7944 * This function returns number of FCP commands pending for the vport.
7945 * When ctx_cmd == LPFC_CTX_LUN, the function returns number of FCP
7946 * commands pending on the vport associated with SCSI device specified
7947 * by tgt_id and lun_id parameters.
7948 * When ctx_cmd == LPFC_CTX_TGT, the function returns number of FCP
7949 * commands pending on the vport associated with SCSI target specified
7950 * by tgt_id parameter.
7951 * When ctx_cmd == LPFC_CTX_HOST, the function returns number of FCP
7952 * commands pending on the vport.
7953 * This function returns the number of iocbs which satisfy the filter.
7954 * This function is called without any lock held.
7957 lpfc_sli_sum_iocb(struct lpfc_vport
*vport
, uint16_t tgt_id
, uint64_t lun_id
,
7958 lpfc_ctx_cmd ctx_cmd
)
7960 struct lpfc_hba
*phba
= vport
->phba
;
7961 struct lpfc_iocbq
*iocbq
;
7964 for (i
= 1, sum
= 0; i
<= phba
->sli
.last_iotag
; i
++) {
7965 iocbq
= phba
->sli
.iocbq_lookup
[i
];
7967 if (lpfc_sli_validate_fcp_iocb (iocbq
, vport
, tgt_id
, lun_id
,
7976 * lpfc_sli_abort_fcp_cmpl - Completion handler function for aborted FCP IOCBs
7977 * @phba: Pointer to HBA context object
7978 * @cmdiocb: Pointer to command iocb object.
7979 * @rspiocb: Pointer to response iocb object.
7981 * This function is called when an aborted FCP iocb completes. This
7982 * function is called by the ring event handler with no lock held.
7983 * This function frees the iocb.
7986 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba
*phba
, struct lpfc_iocbq
*cmdiocb
,
7987 struct lpfc_iocbq
*rspiocb
)
7989 lpfc_sli_release_iocbq(phba
, cmdiocb
);
7994 * lpfc_sli_abort_iocb - issue abort for all commands on a host/target/LUN
7995 * @vport: Pointer to virtual port.
7996 * @pring: Pointer to driver SLI ring object.
7997 * @tgt_id: SCSI ID of the target.
7998 * @lun_id: LUN ID of the scsi device.
7999 * @abort_cmd: LPFC_CTX_LUN/LPFC_CTX_TGT/LPFC_CTX_HOST.
8001 * This function sends an abort command for every SCSI command
8002 * associated with the given virtual port pending on the ring
8003 * filtered by lpfc_sli_validate_fcp_iocb function.
8004 * When abort_cmd == LPFC_CTX_LUN, the function sends abort only to the
8005 * FCP iocbs associated with lun specified by tgt_id and lun_id
8007 * When abort_cmd == LPFC_CTX_TGT, the function sends abort only to the
8008 * FCP iocbs associated with SCSI target specified by tgt_id parameter.
8009 * When abort_cmd == LPFC_CTX_HOST, the function sends abort to all
8010 * FCP iocbs associated with virtual port.
8011 * This function returns number of iocbs it failed to abort.
8012 * This function is called with no locks held.
8015 lpfc_sli_abort_iocb(struct lpfc_vport
*vport
, struct lpfc_sli_ring
*pring
,
8016 uint16_t tgt_id
, uint64_t lun_id
, lpfc_ctx_cmd abort_cmd
)
8018 struct lpfc_hba
*phba
= vport
->phba
;
8019 struct lpfc_iocbq
*iocbq
;
8020 struct lpfc_iocbq
*abtsiocb
;
8022 int errcnt
= 0, ret_val
= 0;
8025 for (i
= 1; i
<= phba
->sli
.last_iotag
; i
++) {
8026 iocbq
= phba
->sli
.iocbq_lookup
[i
];
8028 if (lpfc_sli_validate_fcp_iocb(iocbq
, vport
, tgt_id
, lun_id
,
8032 /* issue ABTS for this IOCB based on iotag */
8033 abtsiocb
= lpfc_sli_get_iocbq(phba
);
8034 if (abtsiocb
== NULL
) {
8040 abtsiocb
->iocb
.un
.acxri
.abortType
= ABORT_TYPE_ABTS
;
8041 abtsiocb
->iocb
.un
.acxri
.abortContextTag
= cmd
->ulpContext
;
8042 if (phba
->sli_rev
== LPFC_SLI_REV4
)
8043 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= iocbq
->sli4_xritag
;
8045 abtsiocb
->iocb
.un
.acxri
.abortIoTag
= cmd
->ulpIoTag
;
8046 abtsiocb
->iocb
.ulpLe
= 1;
8047 abtsiocb
->iocb
.ulpClass
= cmd
->ulpClass
;
8048 abtsiocb
->vport
= phba
->pport
;
8050 /* ABTS WQE must go to the same WQ as the WQE to be aborted */
8051 abtsiocb
->fcp_wqidx
= iocbq
->fcp_wqidx
;
8052 if (iocbq
->iocb_flag
& LPFC_IO_FCP
)
8053 abtsiocb
->iocb_flag
|= LPFC_USE_FCPWQIDX
;
8055 if (lpfc_is_link_up(phba
))
8056 abtsiocb
->iocb
.ulpCommand
= CMD_ABORT_XRI_CN
;
8058 abtsiocb
->iocb
.ulpCommand
= CMD_CLOSE_XRI_CN
;
8060 /* Setup callback routine and issue the command. */
8061 abtsiocb
->iocb_cmpl
= lpfc_sli_abort_fcp_cmpl
;
8062 ret_val
= lpfc_sli_issue_iocb(phba
, pring
->ringno
,
8064 if (ret_val
== IOCB_ERROR
) {
8065 lpfc_sli_release_iocbq(phba
, abtsiocb
);
8075 * lpfc_sli_wake_iocb_wait - lpfc_sli_issue_iocb_wait's completion handler
8076 * @phba: Pointer to HBA context object.
8077 * @cmdiocbq: Pointer to command iocb.
8078 * @rspiocbq: Pointer to response iocb.
8080 * This function is the completion handler for iocbs issued using
8081 * lpfc_sli_issue_iocb_wait function. This function is called by the
8082 * ring event handler function without any lock held. This function
8083 * can be called from both worker thread context and interrupt
8084 * context. This function also can be called from other thread which
8085 * cleans up the SLI layer objects.
8086 * This function copy the contents of the response iocb to the
8087 * response iocb memory object provided by the caller of
8088 * lpfc_sli_issue_iocb_wait and then wakes up the thread which
8089 * sleeps for the iocb completion.
8092 lpfc_sli_wake_iocb_wait(struct lpfc_hba
*phba
,
8093 struct lpfc_iocbq
*cmdiocbq
,
8094 struct lpfc_iocbq
*rspiocbq
)
8096 wait_queue_head_t
*pdone_q
;
8097 unsigned long iflags
;
8098 struct lpfc_scsi_buf
*lpfc_cmd
;
8100 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8101 cmdiocbq
->iocb_flag
|= LPFC_IO_WAKE
;
8102 if (cmdiocbq
->context2
&& rspiocbq
)
8103 memcpy(&((struct lpfc_iocbq
*)cmdiocbq
->context2
)->iocb
,
8104 &rspiocbq
->iocb
, sizeof(IOCB_t
));
8106 /* Set the exchange busy flag for task management commands */
8107 if ((cmdiocbq
->iocb_flag
& LPFC_IO_FCP
) &&
8108 !(cmdiocbq
->iocb_flag
& LPFC_IO_LIBDFC
)) {
8109 lpfc_cmd
= container_of(cmdiocbq
, struct lpfc_scsi_buf
,
8111 lpfc_cmd
->exch_busy
= rspiocbq
->iocb_flag
& LPFC_EXCHANGE_BUSY
;
8114 pdone_q
= cmdiocbq
->context_un
.wait_queue
;
8117 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8122 * lpfc_chk_iocb_flg - Test IOCB flag with lock held.
8123 * @phba: Pointer to HBA context object..
8124 * @piocbq: Pointer to command iocb.
8125 * @flag: Flag to test.
8127 * This routine grabs the hbalock and then test the iocb_flag to
8128 * see if the passed in flag is set.
8131 * 0 if flag is not set.
8134 lpfc_chk_iocb_flg(struct lpfc_hba
*phba
,
8135 struct lpfc_iocbq
*piocbq
, uint32_t flag
)
8137 unsigned long iflags
;
8140 spin_lock_irqsave(&phba
->hbalock
, iflags
);
8141 ret
= piocbq
->iocb_flag
& flag
;
8142 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
8148 * lpfc_sli_issue_iocb_wait - Synchronous function to issue iocb commands
8149 * @phba: Pointer to HBA context object..
8150 * @pring: Pointer to sli ring.
8151 * @piocb: Pointer to command iocb.
8152 * @prspiocbq: Pointer to response iocb.
8153 * @timeout: Timeout in number of seconds.
8155 * This function issues the iocb to firmware and waits for the
8156 * iocb to complete. If the iocb command is not
8157 * completed within timeout seconds, it returns IOCB_TIMEDOUT.
8158 * Caller should not free the iocb resources if this function
8159 * returns IOCB_TIMEDOUT.
8160 * The function waits for the iocb completion using an
8161 * non-interruptible wait.
8162 * This function will sleep while waiting for iocb completion.
8163 * So, this function should not be called from any context which
8164 * does not allow sleeping. Due to the same reason, this function
8165 * cannot be called with interrupt disabled.
8166 * This function assumes that the iocb completions occur while
8167 * this function sleep. So, this function cannot be called from
8168 * the thread which process iocb completion for this ring.
8169 * This function clears the iocb_flag of the iocb object before
8170 * issuing the iocb and the iocb completion handler sets this
8171 * flag and wakes this thread when the iocb completes.
8172 * The contents of the response iocb will be copied to prspiocbq
8173 * by the completion handler when the command completes.
8174 * This function returns IOCB_SUCCESS when success.
8175 * This function is called with no lock held.
8178 lpfc_sli_issue_iocb_wait(struct lpfc_hba
*phba
,
8179 uint32_t ring_number
,
8180 struct lpfc_iocbq
*piocb
,
8181 struct lpfc_iocbq
*prspiocbq
,
8184 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
8185 long timeleft
, timeout_req
= 0;
8186 int retval
= IOCB_SUCCESS
;
8188 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
8190 * If the caller has provided a response iocbq buffer, then context2
8191 * is NULL or its an error.
8194 if (piocb
->context2
)
8196 piocb
->context2
= prspiocbq
;
8199 piocb
->iocb_cmpl
= lpfc_sli_wake_iocb_wait
;
8200 piocb
->context_un
.wait_queue
= &done_q
;
8201 piocb
->iocb_flag
&= ~LPFC_IO_WAKE
;
8203 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
8204 creg_val
= readl(phba
->HCregaddr
);
8205 creg_val
|= (HC_R0INT_ENA
<< LPFC_FCP_RING
);
8206 writel(creg_val
, phba
->HCregaddr
);
8207 readl(phba
->HCregaddr
); /* flush */
8210 retval
= lpfc_sli_issue_iocb(phba
, ring_number
, piocb
,
8212 if (retval
== IOCB_SUCCESS
) {
8213 timeout_req
= timeout
* HZ
;
8214 timeleft
= wait_event_timeout(done_q
,
8215 lpfc_chk_iocb_flg(phba
, piocb
, LPFC_IO_WAKE
),
8218 if (piocb
->iocb_flag
& LPFC_IO_WAKE
) {
8219 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8220 "0331 IOCB wake signaled\n");
8221 } else if (timeleft
== 0) {
8222 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8223 "0338 IOCB wait timeout error - no "
8224 "wake response Data x%x\n", timeout
);
8225 retval
= IOCB_TIMEDOUT
;
8227 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
8228 "0330 IOCB wake NOT set, "
8230 timeout
, (timeleft
/ jiffies
));
8231 retval
= IOCB_TIMEDOUT
;
8233 } else if (retval
== IOCB_BUSY
) {
8234 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8235 "2818 Max IOCBs %d txq cnt %d txcmplq cnt %d\n",
8236 phba
->iocb_cnt
, pring
->txq_cnt
, pring
->txcmplq_cnt
);
8239 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
8240 "0332 IOCB wait issue failed, Data x%x\n",
8242 retval
= IOCB_ERROR
;
8245 if (phba
->cfg_poll
& DISABLE_FCP_RING_INT
) {
8246 creg_val
= readl(phba
->HCregaddr
);
8247 creg_val
&= ~(HC_R0INT_ENA
<< LPFC_FCP_RING
);
8248 writel(creg_val
, phba
->HCregaddr
);
8249 readl(phba
->HCregaddr
); /* flush */
8253 piocb
->context2
= NULL
;
8255 piocb
->context_un
.wait_queue
= NULL
;
8256 piocb
->iocb_cmpl
= NULL
;
8261 * lpfc_sli_issue_mbox_wait - Synchronous function to issue mailbox
8262 * @phba: Pointer to HBA context object.
8263 * @pmboxq: Pointer to driver mailbox object.
8264 * @timeout: Timeout in number of seconds.
8266 * This function issues the mailbox to firmware and waits for the
8267 * mailbox command to complete. If the mailbox command is not
8268 * completed within timeout seconds, it returns MBX_TIMEOUT.
8269 * The function waits for the mailbox completion using an
8270 * interruptible wait. If the thread is woken up due to a
8271 * signal, MBX_TIMEOUT error is returned to the caller. Caller
8272 * should not free the mailbox resources, if this function returns
8274 * This function will sleep while waiting for mailbox completion.
8275 * So, this function should not be called from any context which
8276 * does not allow sleeping. Due to the same reason, this function
8277 * cannot be called with interrupt disabled.
8278 * This function assumes that the mailbox completion occurs while
8279 * this function sleep. So, this function cannot be called from
8280 * the worker thread which processes mailbox completion.
8281 * This function is called in the context of HBA management
8283 * This function returns MBX_SUCCESS when successful.
8284 * This function is called with no lock held.
8287 lpfc_sli_issue_mbox_wait(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*pmboxq
,
8290 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(done_q
);
8294 /* The caller must leave context1 empty. */
8295 if (pmboxq
->context1
)
8296 return MBX_NOT_FINISHED
;
8298 pmboxq
->mbox_flag
&= ~LPFC_MBX_WAKE
;
8299 /* setup wake call as IOCB callback */
8300 pmboxq
->mbox_cmpl
= lpfc_sli_wake_mbox_wait
;
8301 /* setup context field to pass wait_queue pointer to wake function */
8302 pmboxq
->context1
= &done_q
;
8304 /* now issue the command */
8305 retval
= lpfc_sli_issue_mbox(phba
, pmboxq
, MBX_NOWAIT
);
8307 if (retval
== MBX_BUSY
|| retval
== MBX_SUCCESS
) {
8308 wait_event_interruptible_timeout(done_q
,
8309 pmboxq
->mbox_flag
& LPFC_MBX_WAKE
,
8312 spin_lock_irqsave(&phba
->hbalock
, flag
);
8313 pmboxq
->context1
= NULL
;
8315 * if LPFC_MBX_WAKE flag is set the mailbox is completed
8316 * else do not free the resources.
8318 if (pmboxq
->mbox_flag
& LPFC_MBX_WAKE
) {
8319 retval
= MBX_SUCCESS
;
8320 lpfc_sli4_swap_str(phba
, pmboxq
);
8322 retval
= MBX_TIMEOUT
;
8323 pmboxq
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
8325 spin_unlock_irqrestore(&phba
->hbalock
, flag
);
8332 * lpfc_sli_mbox_sys_shutdown - shutdown mailbox command sub-system
8333 * @phba: Pointer to HBA context.
8335 * This function is called to shutdown the driver's mailbox sub-system.
8336 * It first marks the mailbox sub-system is in a block state to prevent
8337 * the asynchronous mailbox command from issued off the pending mailbox
8338 * command queue. If the mailbox command sub-system shutdown is due to
8339 * HBA error conditions such as EEH or ERATT, this routine shall invoke
8340 * the mailbox sub-system flush routine to forcefully bring down the
8341 * mailbox sub-system. Otherwise, if it is due to normal condition (such
8342 * as with offline or HBA function reset), this routine will wait for the
8343 * outstanding mailbox command to complete before invoking the mailbox
8344 * sub-system flush routine to gracefully bring down mailbox sub-system.
8347 lpfc_sli_mbox_sys_shutdown(struct lpfc_hba
*phba
)
8349 struct lpfc_sli
*psli
= &phba
->sli
;
8350 uint8_t actcmd
= MBX_HEARTBEAT
;
8351 unsigned long timeout
;
8353 spin_lock_irq(&phba
->hbalock
);
8354 psli
->sli_flag
|= LPFC_SLI_ASYNC_MBX_BLK
;
8355 spin_unlock_irq(&phba
->hbalock
);
8357 if (psli
->sli_flag
& LPFC_SLI_ACTIVE
) {
8358 spin_lock_irq(&phba
->hbalock
);
8359 if (phba
->sli
.mbox_active
)
8360 actcmd
= phba
->sli
.mbox_active
->u
.mb
.mbxCommand
;
8361 spin_unlock_irq(&phba
->hbalock
);
8362 /* Determine how long we might wait for the active mailbox
8363 * command to be gracefully completed by firmware.
8365 timeout
= msecs_to_jiffies(lpfc_mbox_tmo_val(phba
, actcmd
) *
8367 while (phba
->sli
.mbox_active
) {
8368 /* Check active mailbox complete status every 2ms */
8370 if (time_after(jiffies
, timeout
))
8371 /* Timeout, let the mailbox flush routine to
8372 * forcefully release active mailbox command
8377 lpfc_sli_mbox_sys_flush(phba
);
8381 * lpfc_sli_eratt_read - read sli-3 error attention events
8382 * @phba: Pointer to HBA context.
8384 * This function is called to read the SLI3 device error attention registers
8385 * for possible error attention events. The caller must hold the hostlock
8386 * with spin_lock_irq().
8388 * This fucntion returns 1 when there is Error Attention in the Host Attention
8389 * Register and returns 0 otherwise.
8392 lpfc_sli_eratt_read(struct lpfc_hba
*phba
)
8396 /* Read chip Host Attention (HA) register */
8397 ha_copy
= readl(phba
->HAregaddr
);
8398 if (ha_copy
& HA_ERATT
) {
8399 /* Read host status register to retrieve error event */
8400 lpfc_sli_read_hs(phba
);
8402 /* Check if there is a deferred error condition is active */
8403 if ((HS_FFER1
& phba
->work_hs
) &&
8404 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8405 HS_FFER6
| HS_FFER7
| HS_FFER8
) & phba
->work_hs
)) {
8406 phba
->hba_flag
|= DEFER_ERATT
;
8407 /* Clear all interrupt enable conditions */
8408 writel(0, phba
->HCregaddr
);
8409 readl(phba
->HCregaddr
);
8412 /* Set the driver HA work bitmap */
8413 phba
->work_ha
|= HA_ERATT
;
8414 /* Indicate polling handles this ERATT */
8415 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8422 * lpfc_sli4_eratt_read - read sli-4 error attention events
8423 * @phba: Pointer to HBA context.
8425 * This function is called to read the SLI4 device error attention registers
8426 * for possible error attention events. The caller must hold the hostlock
8427 * with spin_lock_irq().
8429 * This fucntion returns 1 when there is Error Attention in the Host Attention
8430 * Register and returns 0 otherwise.
8433 lpfc_sli4_eratt_read(struct lpfc_hba
*phba
)
8435 uint32_t uerr_sta_hi
, uerr_sta_lo
;
8436 uint32_t if_type
, portsmphr
;
8437 struct lpfc_register portstat_reg
;
8440 * For now, use the SLI4 device internal unrecoverable error
8441 * registers for error attention. This can be changed later.
8443 if_type
= bf_get(lpfc_sli_intf_if_type
, &phba
->sli4_hba
.sli_intf
);
8445 case LPFC_SLI_INTF_IF_TYPE_0
:
8446 uerr_sta_lo
= readl(phba
->sli4_hba
.u
.if_type0
.UERRLOregaddr
);
8447 uerr_sta_hi
= readl(phba
->sli4_hba
.u
.if_type0
.UERRHIregaddr
);
8448 if ((~phba
->sli4_hba
.ue_mask_lo
& uerr_sta_lo
) ||
8449 (~phba
->sli4_hba
.ue_mask_hi
& uerr_sta_hi
)) {
8450 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8451 "1423 HBA Unrecoverable error: "
8452 "uerr_lo_reg=0x%x, uerr_hi_reg=0x%x, "
8453 "ue_mask_lo_reg=0x%x, "
8454 "ue_mask_hi_reg=0x%x\n",
8455 uerr_sta_lo
, uerr_sta_hi
,
8456 phba
->sli4_hba
.ue_mask_lo
,
8457 phba
->sli4_hba
.ue_mask_hi
);
8458 phba
->work_status
[0] = uerr_sta_lo
;
8459 phba
->work_status
[1] = uerr_sta_hi
;
8460 phba
->work_ha
|= HA_ERATT
;
8461 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8465 case LPFC_SLI_INTF_IF_TYPE_2
:
8466 portstat_reg
.word0
=
8467 readl(phba
->sli4_hba
.u
.if_type2
.STATUSregaddr
);
8468 portsmphr
= readl(phba
->sli4_hba
.PSMPHRregaddr
);
8469 if (bf_get(lpfc_sliport_status_err
, &portstat_reg
)) {
8470 phba
->work_status
[0] =
8471 readl(phba
->sli4_hba
.u
.if_type2
.ERR1regaddr
);
8472 phba
->work_status
[1] =
8473 readl(phba
->sli4_hba
.u
.if_type2
.ERR2regaddr
);
8474 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8475 "2885 Port Error Detected: "
8476 "port status reg 0x%x, "
8477 "port smphr reg 0x%x, "
8478 "error 1=0x%x, error 2=0x%x\n",
8481 phba
->work_status
[0],
8482 phba
->work_status
[1]);
8483 phba
->work_ha
|= HA_ERATT
;
8484 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8488 case LPFC_SLI_INTF_IF_TYPE_1
:
8490 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8491 "2886 HBA Error Attention on unsupported "
8492 "if type %d.", if_type
);
8500 * lpfc_sli_check_eratt - check error attention events
8501 * @phba: Pointer to HBA context.
8503 * This function is called from timer soft interrupt context to check HBA's
8504 * error attention register bit for error attention events.
8506 * This fucntion returns 1 when there is Error Attention in the Host Attention
8507 * Register and returns 0 otherwise.
8510 lpfc_sli_check_eratt(struct lpfc_hba
*phba
)
8514 /* If somebody is waiting to handle an eratt, don't process it
8515 * here. The brdkill function will do this.
8517 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8520 /* Check if interrupt handler handles this ERATT */
8521 spin_lock_irq(&phba
->hbalock
);
8522 if (phba
->hba_flag
& HBA_ERATT_HANDLED
) {
8523 /* Interrupt handler has handled ERATT */
8524 spin_unlock_irq(&phba
->hbalock
);
8529 * If there is deferred error attention, do not check for error
8532 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8533 spin_unlock_irq(&phba
->hbalock
);
8537 /* If PCI channel is offline, don't process it */
8538 if (unlikely(pci_channel_offline(phba
->pcidev
))) {
8539 spin_unlock_irq(&phba
->hbalock
);
8543 switch (phba
->sli_rev
) {
8546 /* Read chip Host Attention (HA) register */
8547 ha_copy
= lpfc_sli_eratt_read(phba
);
8550 /* Read device Uncoverable Error (UERR) registers */
8551 ha_copy
= lpfc_sli4_eratt_read(phba
);
8554 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
8555 "0299 Invalid SLI revision (%d)\n",
8560 spin_unlock_irq(&phba
->hbalock
);
8566 * lpfc_intr_state_check - Check device state for interrupt handling
8567 * @phba: Pointer to HBA context.
8569 * This inline routine checks whether a device or its PCI slot is in a state
8570 * that the interrupt should be handled.
8572 * This function returns 0 if the device or the PCI slot is in a state that
8573 * interrupt should be handled, otherwise -EIO.
8576 lpfc_intr_state_check(struct lpfc_hba
*phba
)
8578 /* If the pci channel is offline, ignore all the interrupts */
8579 if (unlikely(pci_channel_offline(phba
->pcidev
)))
8582 /* Update device level interrupt statistics */
8583 phba
->sli
.slistat
.sli_intr
++;
8585 /* Ignore all interrupts during initialization. */
8586 if (unlikely(phba
->link_state
< LPFC_LINK_DOWN
))
8593 * lpfc_sli_sp_intr_handler - Slow-path interrupt handler to SLI-3 device
8594 * @irq: Interrupt number.
8595 * @dev_id: The device context pointer.
8597 * This function is directly called from the PCI layer as an interrupt
8598 * service routine when device with SLI-3 interface spec is enabled with
8599 * MSI-X multi-message interrupt mode and there are slow-path events in
8600 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
8601 * interrupt mode, this function is called as part of the device-level
8602 * interrupt handler. When the PCI slot is in error recovery or the HBA
8603 * is undergoing initialization, the interrupt handler will not process
8604 * the interrupt. The link attention and ELS ring attention events are
8605 * handled by the worker thread. The interrupt handler signals the worker
8606 * thread and returns for these events. This function is called without
8607 * any lock held. It gets the hbalock to access and update SLI data
8610 * This function returns IRQ_HANDLED when interrupt is handled else it
8614 lpfc_sli_sp_intr_handler(int irq
, void *dev_id
)
8616 struct lpfc_hba
*phba
;
8617 uint32_t ha_copy
, hc_copy
;
8618 uint32_t work_ha_copy
;
8619 unsigned long status
;
8620 unsigned long iflag
;
8623 MAILBOX_t
*mbox
, *pmbox
;
8624 struct lpfc_vport
*vport
;
8625 struct lpfc_nodelist
*ndlp
;
8626 struct lpfc_dmabuf
*mp
;
8631 * Get the driver's phba structure from the dev_id and
8632 * assume the HBA is not interrupting.
8634 phba
= (struct lpfc_hba
*)dev_id
;
8636 if (unlikely(!phba
))
8640 * Stuff needs to be attented to when this function is invoked as an
8641 * individual interrupt handler in MSI-X multi-message interrupt mode
8643 if (phba
->intr_type
== MSIX
) {
8644 /* Check device state for handling interrupt */
8645 if (lpfc_intr_state_check(phba
))
8647 /* Need to read HA REG for slow-path events */
8648 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8649 ha_copy
= readl(phba
->HAregaddr
);
8650 /* If somebody is waiting to handle an eratt don't process it
8651 * here. The brdkill function will do this.
8653 if (phba
->link_flag
& LS_IGNORE_ERATT
)
8654 ha_copy
&= ~HA_ERATT
;
8655 /* Check the need for handling ERATT in interrupt handler */
8656 if (ha_copy
& HA_ERATT
) {
8657 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
8658 /* ERATT polling has handled ERATT */
8659 ha_copy
&= ~HA_ERATT
;
8661 /* Indicate interrupt handler handles ERATT */
8662 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
8666 * If there is deferred error attention, do not check for any
8669 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8670 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8674 /* Clear up only attention source related to slow-path */
8675 hc_copy
= readl(phba
->HCregaddr
);
8676 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R2INT_ENA
|
8677 HC_LAINT_ENA
| HC_ERINT_ENA
),
8679 writel((ha_copy
& (HA_MBATT
| HA_R2_CLR_MSK
)),
8681 writel(hc_copy
, phba
->HCregaddr
);
8682 readl(phba
->HAregaddr
); /* flush */
8683 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8685 ha_copy
= phba
->ha_copy
;
8687 work_ha_copy
= ha_copy
& phba
->work_ha_mask
;
8690 if (work_ha_copy
& HA_LATT
) {
8691 if (phba
->sli
.sli_flag
& LPFC_PROCESS_LA
) {
8693 * Turn off Link Attention interrupts
8694 * until CLEAR_LA done
8696 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8697 phba
->sli
.sli_flag
&= ~LPFC_PROCESS_LA
;
8698 control
= readl(phba
->HCregaddr
);
8699 control
&= ~HC_LAINT_ENA
;
8700 writel(control
, phba
->HCregaddr
);
8701 readl(phba
->HCregaddr
); /* flush */
8702 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8705 work_ha_copy
&= ~HA_LATT
;
8708 if (work_ha_copy
& ~(HA_ERATT
| HA_MBATT
| HA_LATT
)) {
8710 * Turn off Slow Rings interrupts, LPFC_ELS_RING is
8711 * the only slow ring.
8713 status
= (work_ha_copy
&
8714 (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
8715 status
>>= (4*LPFC_ELS_RING
);
8716 if (status
& HA_RXMASK
) {
8717 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8718 control
= readl(phba
->HCregaddr
);
8720 lpfc_debugfs_slow_ring_trc(phba
,
8721 "ISR slow ring: ctl:x%x stat:x%x isrcnt:x%x",
8723 (uint32_t)phba
->sli
.slistat
.sli_intr
);
8725 if (control
& (HC_R0INT_ENA
<< LPFC_ELS_RING
)) {
8726 lpfc_debugfs_slow_ring_trc(phba
,
8728 "pwork:x%x hawork:x%x wait:x%x",
8729 phba
->work_ha
, work_ha_copy
,
8730 (uint32_t)((unsigned long)
8731 &phba
->work_waitq
));
8734 ~(HC_R0INT_ENA
<< LPFC_ELS_RING
);
8735 writel(control
, phba
->HCregaddr
);
8736 readl(phba
->HCregaddr
); /* flush */
8739 lpfc_debugfs_slow_ring_trc(phba
,
8740 "ISR slow ring: pwork:"
8741 "x%x hawork:x%x wait:x%x",
8742 phba
->work_ha
, work_ha_copy
,
8743 (uint32_t)((unsigned long)
8744 &phba
->work_waitq
));
8746 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8749 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8750 if (work_ha_copy
& HA_ERATT
) {
8751 lpfc_sli_read_hs(phba
);
8753 * Check if there is a deferred error condition
8756 if ((HS_FFER1
& phba
->work_hs
) &&
8757 ((HS_FFER2
| HS_FFER3
| HS_FFER4
| HS_FFER5
|
8758 HS_FFER6
| HS_FFER7
| HS_FFER8
) &
8760 phba
->hba_flag
|= DEFER_ERATT
;
8761 /* Clear all interrupt enable conditions */
8762 writel(0, phba
->HCregaddr
);
8763 readl(phba
->HCregaddr
);
8767 if ((work_ha_copy
& HA_MBATT
) && (phba
->sli
.mbox_active
)) {
8768 pmb
= phba
->sli
.mbox_active
;
8773 /* First check out the status word */
8774 lpfc_sli_pcimem_bcopy(mbox
, pmbox
, sizeof(uint32_t));
8775 if (pmbox
->mbxOwner
!= OWN_HOST
) {
8776 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8778 * Stray Mailbox Interrupt, mbxCommand <cmd>
8779 * mbxStatus <status>
8781 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8783 "(%d):0304 Stray Mailbox "
8784 "Interrupt mbxCommand x%x "
8786 (vport
? vport
->vpi
: 0),
8789 /* clear mailbox attention bit */
8790 work_ha_copy
&= ~HA_MBATT
;
8792 phba
->sli
.mbox_active
= NULL
;
8793 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8794 phba
->last_completion_time
= jiffies
;
8795 del_timer(&phba
->sli
.mbox_tmo
);
8796 if (pmb
->mbox_cmpl
) {
8797 lpfc_sli_pcimem_bcopy(mbox
, pmbox
,
8799 if (pmb
->out_ext_byte_len
&&
8801 lpfc_sli_pcimem_bcopy(
8804 pmb
->out_ext_byte_len
);
8806 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
8807 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
8809 lpfc_debugfs_disc_trc(vport
,
8810 LPFC_DISC_TRC_MBOX_VPORT
,
8812 "status:x%x rpi:x%x",
8813 (uint32_t)pmbox
->mbxStatus
,
8814 pmbox
->un
.varWords
[0], 0);
8816 if (!pmbox
->mbxStatus
) {
8817 mp
= (struct lpfc_dmabuf
*)
8819 ndlp
= (struct lpfc_nodelist
*)
8822 /* Reg_LOGIN of dflt RPI was
8823 * successful. new lets get
8824 * rid of the RPI using the
8827 lpfc_unreg_login(phba
,
8829 pmbox
->un
.varWords
[0],
8832 lpfc_mbx_cmpl_dflt_rpi
;
8834 pmb
->context2
= ndlp
;
8836 rc
= lpfc_sli_issue_mbox(phba
,
8840 lpfc_printf_log(phba
,
8843 "0350 rc should have"
8845 if (rc
!= MBX_NOT_FINISHED
)
8846 goto send_current_mbox
;
8850 &phba
->pport
->work_port_lock
,
8852 phba
->pport
->work_port_events
&=
8854 spin_unlock_irqrestore(
8855 &phba
->pport
->work_port_lock
,
8857 lpfc_mbox_cmpl_put(phba
, pmb
);
8860 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8862 if ((work_ha_copy
& HA_MBATT
) &&
8863 (phba
->sli
.mbox_active
== NULL
)) {
8865 /* Process next mailbox command if there is one */
8867 rc
= lpfc_sli_issue_mbox(phba
, NULL
,
8869 } while (rc
== MBX_NOT_FINISHED
);
8870 if (rc
!= MBX_SUCCESS
)
8871 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
8872 LOG_SLI
, "0349 rc should be "
8876 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8877 phba
->work_ha
|= work_ha_copy
;
8878 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8879 lpfc_worker_wake_up(phba
);
8883 } /* lpfc_sli_sp_intr_handler */
8886 * lpfc_sli_fp_intr_handler - Fast-path interrupt handler to SLI-3 device.
8887 * @irq: Interrupt number.
8888 * @dev_id: The device context pointer.
8890 * This function is directly called from the PCI layer as an interrupt
8891 * service routine when device with SLI-3 interface spec is enabled with
8892 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
8893 * ring event in the HBA. However, when the device is enabled with either
8894 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
8895 * device-level interrupt handler. When the PCI slot is in error recovery
8896 * or the HBA is undergoing initialization, the interrupt handler will not
8897 * process the interrupt. The SCSI FCP fast-path ring event are handled in
8898 * the intrrupt context. This function is called without any lock held.
8899 * It gets the hbalock to access and update SLI data structures.
8901 * This function returns IRQ_HANDLED when interrupt is handled else it
8905 lpfc_sli_fp_intr_handler(int irq
, void *dev_id
)
8907 struct lpfc_hba
*phba
;
8909 unsigned long status
;
8910 unsigned long iflag
;
8912 /* Get the driver's phba structure from the dev_id and
8913 * assume the HBA is not interrupting.
8915 phba
= (struct lpfc_hba
*) dev_id
;
8917 if (unlikely(!phba
))
8921 * Stuff needs to be attented to when this function is invoked as an
8922 * individual interrupt handler in MSI-X multi-message interrupt mode
8924 if (phba
->intr_type
== MSIX
) {
8925 /* Check device state for handling interrupt */
8926 if (lpfc_intr_state_check(phba
))
8928 /* Need to read HA REG for FCP ring and other ring events */
8929 ha_copy
= readl(phba
->HAregaddr
);
8930 /* Clear up only attention source related to fast-path */
8931 spin_lock_irqsave(&phba
->hbalock
, iflag
);
8933 * If there is deferred error attention, do not check for
8936 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
8937 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8940 writel((ha_copy
& (HA_R0_CLR_MSK
| HA_R1_CLR_MSK
)),
8942 readl(phba
->HAregaddr
); /* flush */
8943 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
8945 ha_copy
= phba
->ha_copy
;
8948 * Process all events on FCP ring. Take the optimized path for FCP IO.
8950 ha_copy
&= ~(phba
->work_ha_mask
);
8952 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
8953 status
>>= (4*LPFC_FCP_RING
);
8954 if (status
& HA_RXMASK
)
8955 lpfc_sli_handle_fast_ring_event(phba
,
8956 &phba
->sli
.ring
[LPFC_FCP_RING
],
8959 if (phba
->cfg_multi_ring_support
== 2) {
8961 * Process all events on extra ring. Take the optimized path
8962 * for extra ring IO.
8964 status
= (ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
8965 status
>>= (4*LPFC_EXTRA_RING
);
8966 if (status
& HA_RXMASK
) {
8967 lpfc_sli_handle_fast_ring_event(phba
,
8968 &phba
->sli
.ring
[LPFC_EXTRA_RING
],
8973 } /* lpfc_sli_fp_intr_handler */
8976 * lpfc_sli_intr_handler - Device-level interrupt handler to SLI-3 device
8977 * @irq: Interrupt number.
8978 * @dev_id: The device context pointer.
8980 * This function is the HBA device-level interrupt handler to device with
8981 * SLI-3 interface spec, called from the PCI layer when either MSI or
8982 * Pin-IRQ interrupt mode is enabled and there is an event in the HBA which
8983 * requires driver attention. This function invokes the slow-path interrupt
8984 * attention handling function and fast-path interrupt attention handling
8985 * function in turn to process the relevant HBA attention events. This
8986 * function is called without any lock held. It gets the hbalock to access
8987 * and update SLI data structures.
8989 * This function returns IRQ_HANDLED when interrupt is handled, else it
8993 lpfc_sli_intr_handler(int irq
, void *dev_id
)
8995 struct lpfc_hba
*phba
;
8996 irqreturn_t sp_irq_rc
, fp_irq_rc
;
8997 unsigned long status1
, status2
;
9001 * Get the driver's phba structure from the dev_id and
9002 * assume the HBA is not interrupting.
9004 phba
= (struct lpfc_hba
*) dev_id
;
9006 if (unlikely(!phba
))
9009 /* Check device state for handling interrupt */
9010 if (lpfc_intr_state_check(phba
))
9013 spin_lock(&phba
->hbalock
);
9014 phba
->ha_copy
= readl(phba
->HAregaddr
);
9015 if (unlikely(!phba
->ha_copy
)) {
9016 spin_unlock(&phba
->hbalock
);
9018 } else if (phba
->ha_copy
& HA_ERATT
) {
9019 if (phba
->hba_flag
& HBA_ERATT_HANDLED
)
9020 /* ERATT polling has handled ERATT */
9021 phba
->ha_copy
&= ~HA_ERATT
;
9023 /* Indicate interrupt handler handles ERATT */
9024 phba
->hba_flag
|= HBA_ERATT_HANDLED
;
9028 * If there is deferred error attention, do not check for any interrupt.
9030 if (unlikely(phba
->hba_flag
& DEFER_ERATT
)) {
9031 spin_unlock(&phba
->hbalock
);
9035 /* Clear attention sources except link and error attentions */
9036 hc_copy
= readl(phba
->HCregaddr
);
9037 writel(hc_copy
& ~(HC_MBINT_ENA
| HC_R0INT_ENA
| HC_R1INT_ENA
9038 | HC_R2INT_ENA
| HC_LAINT_ENA
| HC_ERINT_ENA
),
9040 writel((phba
->ha_copy
& ~(HA_LATT
| HA_ERATT
)), phba
->HAregaddr
);
9041 writel(hc_copy
, phba
->HCregaddr
);
9042 readl(phba
->HAregaddr
); /* flush */
9043 spin_unlock(&phba
->hbalock
);
9046 * Invokes slow-path host attention interrupt handling as appropriate.
9049 /* status of events with mailbox and link attention */
9050 status1
= phba
->ha_copy
& (HA_MBATT
| HA_LATT
| HA_ERATT
);
9052 /* status of events with ELS ring */
9053 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_ELS_RING
)));
9054 status2
>>= (4*LPFC_ELS_RING
);
9056 if (status1
|| (status2
& HA_RXMASK
))
9057 sp_irq_rc
= lpfc_sli_sp_intr_handler(irq
, dev_id
);
9059 sp_irq_rc
= IRQ_NONE
;
9062 * Invoke fast-path host attention interrupt handling as appropriate.
9065 /* status of events with FCP ring */
9066 status1
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_FCP_RING
)));
9067 status1
>>= (4*LPFC_FCP_RING
);
9069 /* status of events with extra ring */
9070 if (phba
->cfg_multi_ring_support
== 2) {
9071 status2
= (phba
->ha_copy
& (HA_RXMASK
<< (4*LPFC_EXTRA_RING
)));
9072 status2
>>= (4*LPFC_EXTRA_RING
);
9076 if ((status1
& HA_RXMASK
) || (status2
& HA_RXMASK
))
9077 fp_irq_rc
= lpfc_sli_fp_intr_handler(irq
, dev_id
);
9079 fp_irq_rc
= IRQ_NONE
;
9081 /* Return device-level interrupt handling status */
9082 return (sp_irq_rc
== IRQ_HANDLED
) ? sp_irq_rc
: fp_irq_rc
;
9083 } /* lpfc_sli_intr_handler */
9086 * lpfc_sli4_fcp_xri_abort_event_proc - Process fcp xri abort event
9087 * @phba: pointer to lpfc hba data structure.
9089 * This routine is invoked by the worker thread to process all the pending
9090 * SLI4 FCP abort XRI events.
9092 void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba
*phba
)
9094 struct lpfc_cq_event
*cq_event
;
9096 /* First, declare the fcp xri abort event has been handled */
9097 spin_lock_irq(&phba
->hbalock
);
9098 phba
->hba_flag
&= ~FCP_XRI_ABORT_EVENT
;
9099 spin_unlock_irq(&phba
->hbalock
);
9100 /* Now, handle all the fcp xri abort events */
9101 while (!list_empty(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
)) {
9102 /* Get the first event from the head of the event queue */
9103 spin_lock_irq(&phba
->hbalock
);
9104 list_remove_head(&phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
,
9105 cq_event
, struct lpfc_cq_event
, list
);
9106 spin_unlock_irq(&phba
->hbalock
);
9107 /* Notify aborted XRI for FCP work queue */
9108 lpfc_sli4_fcp_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
9109 /* Free the event processed back to the free pool */
9110 lpfc_sli4_cq_event_release(phba
, cq_event
);
9115 * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event
9116 * @phba: pointer to lpfc hba data structure.
9118 * This routine is invoked by the worker thread to process all the pending
9119 * SLI4 els abort xri events.
9121 void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba
*phba
)
9123 struct lpfc_cq_event
*cq_event
;
9125 /* First, declare the els xri abort event has been handled */
9126 spin_lock_irq(&phba
->hbalock
);
9127 phba
->hba_flag
&= ~ELS_XRI_ABORT_EVENT
;
9128 spin_unlock_irq(&phba
->hbalock
);
9129 /* Now, handle all the els xri abort events */
9130 while (!list_empty(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
)) {
9131 /* Get the first event from the head of the event queue */
9132 spin_lock_irq(&phba
->hbalock
);
9133 list_remove_head(&phba
->sli4_hba
.sp_els_xri_aborted_work_queue
,
9134 cq_event
, struct lpfc_cq_event
, list
);
9135 spin_unlock_irq(&phba
->hbalock
);
9136 /* Notify aborted XRI for ELS work queue */
9137 lpfc_sli4_els_xri_aborted(phba
, &cq_event
->cqe
.wcqe_axri
);
9138 /* Free the event processed back to the free pool */
9139 lpfc_sli4_cq_event_release(phba
, cq_event
);
9144 * lpfc_sli4_iocb_param_transfer - Transfer pIocbOut and cmpl status to pIocbIn
9145 * @phba: pointer to lpfc hba data structure
9146 * @pIocbIn: pointer to the rspiocbq
9147 * @pIocbOut: pointer to the cmdiocbq
9148 * @wcqe: pointer to the complete wcqe
9150 * This routine transfers the fields of a command iocbq to a response iocbq
9151 * by copying all the IOCB fields from command iocbq and transferring the
9152 * completion status information from the complete wcqe.
9155 lpfc_sli4_iocb_param_transfer(struct lpfc_hba
*phba
,
9156 struct lpfc_iocbq
*pIocbIn
,
9157 struct lpfc_iocbq
*pIocbOut
,
9158 struct lpfc_wcqe_complete
*wcqe
)
9160 unsigned long iflags
;
9161 size_t offset
= offsetof(struct lpfc_iocbq
, iocb
);
9163 memcpy((char *)pIocbIn
+ offset
, (char *)pIocbOut
+ offset
,
9164 sizeof(struct lpfc_iocbq
) - offset
);
9165 /* Map WCQE parameters into irspiocb parameters */
9166 pIocbIn
->iocb
.ulpStatus
= bf_get(lpfc_wcqe_c_status
, wcqe
);
9167 if (pIocbOut
->iocb_flag
& LPFC_IO_FCP
)
9168 if (pIocbIn
->iocb
.ulpStatus
== IOSTAT_FCP_RSP_ERROR
)
9169 pIocbIn
->iocb
.un
.fcpi
.fcpi_parm
=
9170 pIocbOut
->iocb
.un
.fcpi
.fcpi_parm
-
9171 wcqe
->total_data_placed
;
9173 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
9175 pIocbIn
->iocb
.un
.ulpWord
[4] = wcqe
->parameter
;
9176 pIocbIn
->iocb
.un
.genreq64
.bdl
.bdeSize
= wcqe
->total_data_placed
;
9179 /* Pick up HBA exchange busy condition */
9180 if (bf_get(lpfc_wcqe_c_xb
, wcqe
)) {
9181 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9182 pIocbIn
->iocb_flag
|= LPFC_EXCHANGE_BUSY
;
9183 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9188 * lpfc_sli4_els_wcqe_to_rspiocbq - Get response iocbq from els wcqe
9189 * @phba: Pointer to HBA context object.
9190 * @wcqe: Pointer to work-queue completion queue entry.
9192 * This routine handles an ELS work-queue completion event and construct
9193 * a pseudo response ELS IODBQ from the SLI4 ELS WCQE for the common
9194 * discovery engine to handle.
9196 * Return: Pointer to the receive IOCBQ, NULL otherwise.
9198 static struct lpfc_iocbq
*
9199 lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba
*phba
,
9200 struct lpfc_iocbq
*irspiocbq
)
9202 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
9203 struct lpfc_iocbq
*cmdiocbq
;
9204 struct lpfc_wcqe_complete
*wcqe
;
9205 unsigned long iflags
;
9207 wcqe
= &irspiocbq
->cq_event
.cqe
.wcqe_cmpl
;
9208 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9209 pring
->stats
.iocb_event
++;
9210 /* Look up the ELS command IOCB and create pseudo response IOCB */
9211 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9212 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9213 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9215 if (unlikely(!cmdiocbq
)) {
9216 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9217 "0386 ELS complete with no corresponding "
9218 "cmdiocb: iotag (%d)\n",
9219 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9220 lpfc_sli_release_iocbq(phba
, irspiocbq
);
9224 /* Fake the irspiocbq and copy necessary response information */
9225 lpfc_sli4_iocb_param_transfer(phba
, irspiocbq
, cmdiocbq
, wcqe
);
9231 * lpfc_sli4_sp_handle_async_event - Handle an asynchroous event
9232 * @phba: Pointer to HBA context object.
9233 * @cqe: Pointer to mailbox completion queue entry.
9235 * This routine process a mailbox completion queue entry with asynchrous
9238 * Return: true if work posted to worker thread, otherwise false.
9241 lpfc_sli4_sp_handle_async_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
9243 struct lpfc_cq_event
*cq_event
;
9244 unsigned long iflags
;
9246 lpfc_printf_log(phba
, KERN_INFO
, LOG_SLI
,
9247 "0392 Async Event: word0:x%x, word1:x%x, "
9248 "word2:x%x, word3:x%x\n", mcqe
->word0
,
9249 mcqe
->mcqe_tag0
, mcqe
->mcqe_tag1
, mcqe
->trailer
);
9251 /* Allocate a new internal CQ_EVENT entry */
9252 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
9254 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9255 "0394 Failed to allocate CQ_EVENT entry\n");
9259 /* Move the CQE into an asynchronous event entry */
9260 memcpy(&cq_event
->cqe
, mcqe
, sizeof(struct lpfc_mcqe
));
9261 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9262 list_add_tail(&cq_event
->list
, &phba
->sli4_hba
.sp_asynce_work_queue
);
9263 /* Set the async event flag */
9264 phba
->hba_flag
|= ASYNC_EVENT
;
9265 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9271 * lpfc_sli4_sp_handle_mbox_event - Handle a mailbox completion event
9272 * @phba: Pointer to HBA context object.
9273 * @cqe: Pointer to mailbox completion queue entry.
9275 * This routine process a mailbox completion queue entry with mailbox
9278 * Return: true if work posted to worker thread, otherwise false.
9281 lpfc_sli4_sp_handle_mbox_event(struct lpfc_hba
*phba
, struct lpfc_mcqe
*mcqe
)
9283 uint32_t mcqe_status
;
9284 MAILBOX_t
*mbox
, *pmbox
;
9285 struct lpfc_mqe
*mqe
;
9286 struct lpfc_vport
*vport
;
9287 struct lpfc_nodelist
*ndlp
;
9288 struct lpfc_dmabuf
*mp
;
9289 unsigned long iflags
;
9291 bool workposted
= false;
9294 /* If not a mailbox complete MCQE, out by checking mailbox consume */
9295 if (!bf_get(lpfc_trailer_completed
, mcqe
))
9296 goto out_no_mqe_complete
;
9298 /* Get the reference to the active mbox command */
9299 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9300 pmb
= phba
->sli
.mbox_active
;
9301 if (unlikely(!pmb
)) {
9302 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
,
9303 "1832 No pending MBOX command to handle\n");
9304 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9305 goto out_no_mqe_complete
;
9307 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9309 pmbox
= (MAILBOX_t
*)&pmb
->u
.mqe
;
9313 /* Reset heartbeat timer */
9314 phba
->last_completion_time
= jiffies
;
9315 del_timer(&phba
->sli
.mbox_tmo
);
9317 /* Move mbox data to caller's mailbox region, do endian swapping */
9318 if (pmb
->mbox_cmpl
&& mbox
)
9319 lpfc_sli_pcimem_bcopy(mbox
, mqe
, sizeof(struct lpfc_mqe
));
9320 /* Set the mailbox status with SLI4 range 0x4000 */
9321 mcqe_status
= bf_get(lpfc_mcqe_status
, mcqe
);
9322 if (mcqe_status
!= MB_CQE_STATUS_SUCCESS
)
9323 bf_set(lpfc_mqe_status
, mqe
,
9324 (LPFC_MBX_ERROR_RANGE
| mcqe_status
));
9326 if (pmb
->mbox_flag
& LPFC_MBX_IMED_UNREG
) {
9327 pmb
->mbox_flag
&= ~LPFC_MBX_IMED_UNREG
;
9328 lpfc_debugfs_disc_trc(vport
, LPFC_DISC_TRC_MBOX_VPORT
,
9329 "MBOX dflt rpi: status:x%x rpi:x%x",
9331 pmbox
->un
.varWords
[0], 0);
9332 if (mcqe_status
== MB_CQE_STATUS_SUCCESS
) {
9333 mp
= (struct lpfc_dmabuf
*)(pmb
->context1
);
9334 ndlp
= (struct lpfc_nodelist
*)pmb
->context2
;
9335 /* Reg_LOGIN of dflt RPI was successful. Now lets get
9336 * RID of the PPI using the same mbox buffer.
9338 lpfc_unreg_login(phba
, vport
->vpi
,
9339 pmbox
->un
.varWords
[0], pmb
);
9340 pmb
->mbox_cmpl
= lpfc_mbx_cmpl_dflt_rpi
;
9342 pmb
->context2
= ndlp
;
9344 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_NOWAIT
);
9346 lpfc_printf_log(phba
, KERN_ERR
, LOG_MBOX
|
9347 LOG_SLI
, "0385 rc should "
9348 "have been MBX_BUSY\n");
9349 if (rc
!= MBX_NOT_FINISHED
)
9350 goto send_current_mbox
;
9353 spin_lock_irqsave(&phba
->pport
->work_port_lock
, iflags
);
9354 phba
->pport
->work_port_events
&= ~WORKER_MBOX_TMO
;
9355 spin_unlock_irqrestore(&phba
->pport
->work_port_lock
, iflags
);
9357 /* There is mailbox completion work to do */
9358 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9359 __lpfc_mbox_cmpl_put(phba
, pmb
);
9360 phba
->work_ha
|= HA_MBATT
;
9361 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9365 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9366 /* Release the mailbox command posting token */
9367 phba
->sli
.sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
9368 /* Setting active mailbox pointer need to be in sync to flag clear */
9369 phba
->sli
.mbox_active
= NULL
;
9370 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9371 /* Wake up worker thread to post the next pending mailbox command */
9372 lpfc_worker_wake_up(phba
);
9373 out_no_mqe_complete
:
9374 if (bf_get(lpfc_trailer_consumed
, mcqe
))
9375 lpfc_sli4_mq_release(phba
->sli4_hba
.mbx_wq
);
9380 * lpfc_sli4_sp_handle_mcqe - Process a mailbox completion queue entry
9381 * @phba: Pointer to HBA context object.
9382 * @cqe: Pointer to mailbox completion queue entry.
9384 * This routine process a mailbox completion queue entry, it invokes the
9385 * proper mailbox complete handling or asynchrous event handling routine
9386 * according to the MCQE's async bit.
9388 * Return: true if work posted to worker thread, otherwise false.
9391 lpfc_sli4_sp_handle_mcqe(struct lpfc_hba
*phba
, struct lpfc_cqe
*cqe
)
9393 struct lpfc_mcqe mcqe
;
9396 /* Copy the mailbox MCQE and convert endian order as needed */
9397 lpfc_sli_pcimem_bcopy(cqe
, &mcqe
, sizeof(struct lpfc_mcqe
));
9399 /* Invoke the proper event handling routine */
9400 if (!bf_get(lpfc_trailer_async
, &mcqe
))
9401 workposted
= lpfc_sli4_sp_handle_mbox_event(phba
, &mcqe
);
9403 workposted
= lpfc_sli4_sp_handle_async_event(phba
, &mcqe
);
9408 * lpfc_sli4_sp_handle_els_wcqe - Handle els work-queue completion event
9409 * @phba: Pointer to HBA context object.
9410 * @wcqe: Pointer to work-queue completion queue entry.
9412 * This routine handles an ELS work-queue completion event.
9414 * Return: true if work posted to worker thread, otherwise false.
9417 lpfc_sli4_sp_handle_els_wcqe(struct lpfc_hba
*phba
,
9418 struct lpfc_wcqe_complete
*wcqe
)
9420 struct lpfc_iocbq
*irspiocbq
;
9421 unsigned long iflags
;
9422 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9424 /* Get an irspiocbq for later ELS response processing use */
9425 irspiocbq
= lpfc_sli_get_iocbq(phba
);
9427 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9428 "0387 NO IOCBQ data: txq_cnt=%d iocb_cnt=%d "
9429 "fcp_txcmplq_cnt=%d, els_txcmplq_cnt=%d\n",
9430 pring
->txq_cnt
, phba
->iocb_cnt
,
9431 phba
->sli
.ring
[LPFC_FCP_RING
].txcmplq_cnt
,
9432 phba
->sli
.ring
[LPFC_ELS_RING
].txcmplq_cnt
);
9436 /* Save off the slow-path queue event for work thread to process */
9437 memcpy(&irspiocbq
->cq_event
.cqe
.wcqe_cmpl
, wcqe
, sizeof(*wcqe
));
9438 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9439 list_add_tail(&irspiocbq
->cq_event
.list
,
9440 &phba
->sli4_hba
.sp_queue_event
);
9441 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9442 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9448 * lpfc_sli4_sp_handle_rel_wcqe - Handle slow-path WQ entry consumed event
9449 * @phba: Pointer to HBA context object.
9450 * @wcqe: Pointer to work-queue completion queue entry.
9452 * This routine handles slow-path WQ entry comsumed event by invoking the
9453 * proper WQ release routine to the slow-path WQ.
9456 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba
*phba
,
9457 struct lpfc_wcqe_release
*wcqe
)
9459 /* Check for the slow-path ELS work queue */
9460 if (bf_get(lpfc_wcqe_r_wq_id
, wcqe
) == phba
->sli4_hba
.els_wq
->queue_id
)
9461 lpfc_sli4_wq_release(phba
->sli4_hba
.els_wq
,
9462 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9464 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9465 "2579 Slow-path wqe consume event carries "
9466 "miss-matched qid: wcqe-qid=x%x, sp-qid=x%x\n",
9467 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
),
9468 phba
->sli4_hba
.els_wq
->queue_id
);
9472 * lpfc_sli4_sp_handle_abort_xri_wcqe - Handle a xri abort event
9473 * @phba: Pointer to HBA context object.
9474 * @cq: Pointer to a WQ completion queue.
9475 * @wcqe: Pointer to work-queue completion queue entry.
9477 * This routine handles an XRI abort event.
9479 * Return: true if work posted to worker thread, otherwise false.
9482 lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba
*phba
,
9483 struct lpfc_queue
*cq
,
9484 struct sli4_wcqe_xri_aborted
*wcqe
)
9486 bool workposted
= false;
9487 struct lpfc_cq_event
*cq_event
;
9488 unsigned long iflags
;
9490 /* Allocate a new internal CQ_EVENT entry */
9491 cq_event
= lpfc_sli4_cq_event_alloc(phba
);
9493 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9494 "0602 Failed to allocate CQ_EVENT entry\n");
9498 /* Move the CQE into the proper xri abort event list */
9499 memcpy(&cq_event
->cqe
, wcqe
, sizeof(struct sli4_wcqe_xri_aborted
));
9500 switch (cq
->subtype
) {
9502 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9503 list_add_tail(&cq_event
->list
,
9504 &phba
->sli4_hba
.sp_fcp_xri_aborted_work_queue
);
9505 /* Set the fcp xri abort event flag */
9506 phba
->hba_flag
|= FCP_XRI_ABORT_EVENT
;
9507 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9511 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9512 list_add_tail(&cq_event
->list
,
9513 &phba
->sli4_hba
.sp_els_xri_aborted_work_queue
);
9514 /* Set the els xri abort event flag */
9515 phba
->hba_flag
|= ELS_XRI_ABORT_EVENT
;
9516 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9520 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9521 "0603 Invalid work queue CQE subtype (x%x)\n",
9530 * lpfc_sli4_sp_handle_rcqe - Process a receive-queue completion queue entry
9531 * @phba: Pointer to HBA context object.
9532 * @rcqe: Pointer to receive-queue completion queue entry.
9534 * This routine process a receive-queue completion queue entry.
9536 * Return: true if work posted to worker thread, otherwise false.
9539 lpfc_sli4_sp_handle_rcqe(struct lpfc_hba
*phba
, struct lpfc_rcqe
*rcqe
)
9541 bool workposted
= false;
9542 struct lpfc_queue
*hrq
= phba
->sli4_hba
.hdr_rq
;
9543 struct lpfc_queue
*drq
= phba
->sli4_hba
.dat_rq
;
9544 struct hbq_dmabuf
*dma_buf
;
9546 unsigned long iflags
;
9548 if (bf_get(lpfc_rcqe_rq_id
, rcqe
) != hrq
->queue_id
)
9551 status
= bf_get(lpfc_rcqe_status
, rcqe
);
9553 case FC_STATUS_RQ_BUF_LEN_EXCEEDED
:
9554 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9555 "2537 Receive Frame Truncated!!\n");
9556 case FC_STATUS_RQ_SUCCESS
:
9557 lpfc_sli4_rq_release(hrq
, drq
);
9558 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9559 dma_buf
= lpfc_sli_hbqbuf_get(&phba
->hbqs
[0].hbq_buffer_list
);
9561 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9564 memcpy(&dma_buf
->cq_event
.cqe
.rcqe_cmpl
, rcqe
, sizeof(*rcqe
));
9565 /* save off the frame for the word thread to process */
9566 list_add_tail(&dma_buf
->cq_event
.list
,
9567 &phba
->sli4_hba
.sp_queue_event
);
9568 /* Frame received */
9569 phba
->hba_flag
|= HBA_SP_QUEUE_EVT
;
9570 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9573 case FC_STATUS_INSUFF_BUF_NEED_BUF
:
9574 case FC_STATUS_INSUFF_BUF_FRM_DISC
:
9575 /* Post more buffers if possible */
9576 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9577 phba
->hba_flag
|= HBA_POST_RECEIVE_BUFFER
;
9578 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9587 * lpfc_sli4_sp_handle_cqe - Process a slow path completion queue entry
9588 * @phba: Pointer to HBA context object.
9589 * @cq: Pointer to the completion queue.
9590 * @wcqe: Pointer to a completion queue entry.
9592 * This routine process a slow-path work-queue or recieve queue completion queue
9595 * Return: true if work posted to worker thread, otherwise false.
9598 lpfc_sli4_sp_handle_cqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9599 struct lpfc_cqe
*cqe
)
9601 struct lpfc_cqe cqevt
;
9602 bool workposted
= false;
9604 /* Copy the work queue CQE and convert endian order if needed */
9605 lpfc_sli_pcimem_bcopy(cqe
, &cqevt
, sizeof(struct lpfc_cqe
));
9607 /* Check and process for different type of WCQE and dispatch */
9608 switch (bf_get(lpfc_cqe_code
, &cqevt
)) {
9609 case CQE_CODE_COMPL_WQE
:
9610 /* Process the WQ/RQ complete event */
9611 phba
->last_completion_time
= jiffies
;
9612 workposted
= lpfc_sli4_sp_handle_els_wcqe(phba
,
9613 (struct lpfc_wcqe_complete
*)&cqevt
);
9615 case CQE_CODE_RELEASE_WQE
:
9616 /* Process the WQ release event */
9617 lpfc_sli4_sp_handle_rel_wcqe(phba
,
9618 (struct lpfc_wcqe_release
*)&cqevt
);
9620 case CQE_CODE_XRI_ABORTED
:
9621 /* Process the WQ XRI abort event */
9622 phba
->last_completion_time
= jiffies
;
9623 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9624 (struct sli4_wcqe_xri_aborted
*)&cqevt
);
9626 case CQE_CODE_RECEIVE
:
9627 /* Process the RQ event */
9628 phba
->last_completion_time
= jiffies
;
9629 workposted
= lpfc_sli4_sp_handle_rcqe(phba
,
9630 (struct lpfc_rcqe
*)&cqevt
);
9633 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9634 "0388 Not a valid WCQE code: x%x\n",
9635 bf_get(lpfc_cqe_code
, &cqevt
));
9642 * lpfc_sli4_sp_handle_eqe - Process a slow-path event queue entry
9643 * @phba: Pointer to HBA context object.
9644 * @eqe: Pointer to fast-path event queue entry.
9646 * This routine process a event queue entry from the slow-path event queue.
9647 * It will check the MajorCode and MinorCode to determine this is for a
9648 * completion event on a completion queue, if not, an error shall be logged
9649 * and just return. Otherwise, it will get to the corresponding completion
9650 * queue and process all the entries on that completion queue, rearm the
9651 * completion queue, and then return.
9655 lpfc_sli4_sp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
)
9657 struct lpfc_queue
*cq
= NULL
, *childq
, *speq
;
9658 struct lpfc_cqe
*cqe
;
9659 bool workposted
= false;
9663 if (bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0) {
9664 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9665 "0359 Not a valid slow-path completion "
9666 "event: majorcode=x%x, minorcode=x%x\n",
9667 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9668 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9672 /* Get the reference to the corresponding CQ */
9673 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9675 /* Search for completion queue pointer matching this cqid */
9676 speq
= phba
->sli4_hba
.sp_eq
;
9677 list_for_each_entry(childq
, &speq
->child_list
, list
) {
9678 if (childq
->queue_id
== cqid
) {
9683 if (unlikely(!cq
)) {
9684 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9685 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9686 "0365 Slow-path CQ identifier "
9687 "(%d) does not exist\n", cqid
);
9691 /* Process all the entries to the CQ */
9694 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9695 workposted
|= lpfc_sli4_sp_handle_mcqe(phba
, cqe
);
9696 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9697 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9701 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9702 workposted
|= lpfc_sli4_sp_handle_cqe(phba
, cq
, cqe
);
9703 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9704 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9708 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9709 "0370 Invalid completion queue type (%d)\n",
9714 /* Catch the no cq entry condition, log an error */
9715 if (unlikely(ecount
== 0))
9716 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9717 "0371 No entry from the CQ: identifier "
9718 "(x%x), type (%d)\n", cq
->queue_id
, cq
->type
);
9720 /* In any case, flash and re-arm the RCQ */
9721 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9723 /* wake up worker thread if there are works to be done */
9725 lpfc_worker_wake_up(phba
);
9729 * lpfc_sli4_fp_handle_fcp_wcqe - Process fast-path work queue completion entry
9730 * @eqe: Pointer to fast-path completion queue entry.
9732 * This routine process a fast-path work queue completion entry from fast-path
9733 * event queue for FCP command response completion.
9736 lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba
*phba
,
9737 struct lpfc_wcqe_complete
*wcqe
)
9739 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_FCP_RING
];
9740 struct lpfc_iocbq
*cmdiocbq
;
9741 struct lpfc_iocbq irspiocbq
;
9742 unsigned long iflags
;
9744 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9745 pring
->stats
.iocb_event
++;
9746 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9748 /* Check for response status */
9749 if (unlikely(bf_get(lpfc_wcqe_c_status
, wcqe
))) {
9750 /* If resource errors reported from HBA, reduce queue
9751 * depth of the SCSI device.
9753 if ((bf_get(lpfc_wcqe_c_status
, wcqe
) ==
9754 IOSTAT_LOCAL_REJECT
) &&
9755 (wcqe
->parameter
== IOERR_NO_RESOURCES
)) {
9756 phba
->lpfc_rampdown_queue_depth(phba
);
9758 /* Log the error status */
9759 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9760 "0373 FCP complete error: status=x%x, "
9761 "hw_status=x%x, total_data_specified=%d, "
9762 "parameter=x%x, word3=x%x\n",
9763 bf_get(lpfc_wcqe_c_status
, wcqe
),
9764 bf_get(lpfc_wcqe_c_hw_status
, wcqe
),
9765 wcqe
->total_data_placed
, wcqe
->parameter
,
9769 /* Look up the FCP command IOCB and create pseudo response IOCB */
9770 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9771 cmdiocbq
= lpfc_sli_iocbq_lookup_by_tag(phba
, pring
,
9772 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9773 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9774 if (unlikely(!cmdiocbq
)) {
9775 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9776 "0374 FCP complete with no corresponding "
9777 "cmdiocb: iotag (%d)\n",
9778 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9781 if (unlikely(!cmdiocbq
->iocb_cmpl
)) {
9782 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9783 "0375 FCP cmdiocb not callback function "
9785 bf_get(lpfc_wcqe_c_request_tag
, wcqe
));
9789 /* Fake the irspiocb and copy necessary response information */
9790 lpfc_sli4_iocb_param_transfer(phba
, &irspiocbq
, cmdiocbq
, wcqe
);
9792 if (cmdiocbq
->iocb_flag
& LPFC_DRIVER_ABORTED
) {
9793 spin_lock_irqsave(&phba
->hbalock
, iflags
);
9794 cmdiocbq
->iocb_flag
&= ~LPFC_DRIVER_ABORTED
;
9795 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
9798 /* Pass the cmd_iocb and the rsp state to the upper layer */
9799 (cmdiocbq
->iocb_cmpl
)(phba
, cmdiocbq
, &irspiocbq
);
9803 * lpfc_sli4_fp_handle_rel_wcqe - Handle fast-path WQ entry consumed event
9804 * @phba: Pointer to HBA context object.
9805 * @cq: Pointer to completion queue.
9806 * @wcqe: Pointer to work-queue completion queue entry.
9808 * This routine handles an fast-path WQ entry comsumed event by invoking the
9809 * proper WQ release routine to the slow-path WQ.
9812 lpfc_sli4_fp_handle_rel_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9813 struct lpfc_wcqe_release
*wcqe
)
9815 struct lpfc_queue
*childwq
;
9816 bool wqid_matched
= false;
9819 /* Check for fast-path FCP work queue release */
9820 fcp_wqid
= bf_get(lpfc_wcqe_r_wq_id
, wcqe
);
9821 list_for_each_entry(childwq
, &cq
->child_list
, list
) {
9822 if (childwq
->queue_id
== fcp_wqid
) {
9823 lpfc_sli4_wq_release(childwq
,
9824 bf_get(lpfc_wcqe_r_wqe_index
, wcqe
));
9825 wqid_matched
= true;
9829 /* Report warning log message if no match found */
9830 if (wqid_matched
!= true)
9831 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
9832 "2580 Fast-path wqe consume event carries "
9833 "miss-matched qid: wcqe-qid=x%x\n", fcp_wqid
);
9837 * lpfc_sli4_fp_handle_wcqe - Process fast-path work queue completion entry
9838 * @cq: Pointer to the completion queue.
9839 * @eqe: Pointer to fast-path completion queue entry.
9841 * This routine process a fast-path work queue completion entry from fast-path
9842 * event queue for FCP command response completion.
9845 lpfc_sli4_fp_handle_wcqe(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
9846 struct lpfc_cqe
*cqe
)
9848 struct lpfc_wcqe_release wcqe
;
9849 bool workposted
= false;
9851 /* Copy the work queue CQE and convert endian order if needed */
9852 lpfc_sli_pcimem_bcopy(cqe
, &wcqe
, sizeof(struct lpfc_cqe
));
9854 /* Check and process for different type of WCQE and dispatch */
9855 switch (bf_get(lpfc_wcqe_c_code
, &wcqe
)) {
9856 case CQE_CODE_COMPL_WQE
:
9857 /* Process the WQ complete event */
9858 phba
->last_completion_time
= jiffies
;
9859 lpfc_sli4_fp_handle_fcp_wcqe(phba
,
9860 (struct lpfc_wcqe_complete
*)&wcqe
);
9862 case CQE_CODE_RELEASE_WQE
:
9863 /* Process the WQ release event */
9864 lpfc_sli4_fp_handle_rel_wcqe(phba
, cq
,
9865 (struct lpfc_wcqe_release
*)&wcqe
);
9867 case CQE_CODE_XRI_ABORTED
:
9868 /* Process the WQ XRI abort event */
9869 phba
->last_completion_time
= jiffies
;
9870 workposted
= lpfc_sli4_sp_handle_abort_xri_wcqe(phba
, cq
,
9871 (struct sli4_wcqe_xri_aborted
*)&wcqe
);
9874 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9875 "0144 Not a valid WCQE code: x%x\n",
9876 bf_get(lpfc_wcqe_c_code
, &wcqe
));
9883 * lpfc_sli4_fp_handle_eqe - Process a fast-path event queue entry
9884 * @phba: Pointer to HBA context object.
9885 * @eqe: Pointer to fast-path event queue entry.
9887 * This routine process a event queue entry from the fast-path event queue.
9888 * It will check the MajorCode and MinorCode to determine this is for a
9889 * completion event on a completion queue, if not, an error shall be logged
9890 * and just return. Otherwise, it will get to the corresponding completion
9891 * queue and process all the entries on the completion queue, rearm the
9892 * completion queue, and then return.
9895 lpfc_sli4_fp_handle_eqe(struct lpfc_hba
*phba
, struct lpfc_eqe
*eqe
,
9898 struct lpfc_queue
*cq
;
9899 struct lpfc_cqe
*cqe
;
9900 bool workposted
= false;
9904 if (unlikely(bf_get_le32(lpfc_eqe_major_code
, eqe
) != 0)) {
9905 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9906 "0366 Not a valid fast-path completion "
9907 "event: majorcode=x%x, minorcode=x%x\n",
9908 bf_get_le32(lpfc_eqe_major_code
, eqe
),
9909 bf_get_le32(lpfc_eqe_minor_code
, eqe
));
9913 cq
= phba
->sli4_hba
.fcp_cq
[fcp_cqidx
];
9914 if (unlikely(!cq
)) {
9915 if (phba
->sli
.sli_flag
& LPFC_SLI_ACTIVE
)
9916 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9917 "0367 Fast-path completion queue "
9918 "does not exist\n");
9922 /* Get the reference to the corresponding CQ */
9923 cqid
= bf_get_le32(lpfc_eqe_resource_id
, eqe
);
9924 if (unlikely(cqid
!= cq
->queue_id
)) {
9925 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9926 "0368 Miss-matched fast-path completion "
9927 "queue identifier: eqcqid=%d, fcpcqid=%d\n",
9928 cqid
, cq
->queue_id
);
9932 /* Process all the entries to the CQ */
9933 while ((cqe
= lpfc_sli4_cq_get(cq
))) {
9934 workposted
|= lpfc_sli4_fp_handle_wcqe(phba
, cq
, cqe
);
9935 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
9936 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_NOARM
);
9939 /* Catch the no cq entry condition */
9940 if (unlikely(ecount
== 0))
9941 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
9942 "0369 No entry from fast-path completion "
9943 "queue fcpcqid=%d\n", cq
->queue_id
);
9945 /* In any case, flash and re-arm the CQ */
9946 lpfc_sli4_cq_release(cq
, LPFC_QUEUE_REARM
);
9948 /* wake up worker thread if there are works to be done */
9950 lpfc_worker_wake_up(phba
);
9954 lpfc_sli4_eq_flush(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
9956 struct lpfc_eqe
*eqe
;
9958 /* walk all the EQ entries and drop on the floor */
9959 while ((eqe
= lpfc_sli4_eq_get(eq
)))
9962 /* Clear and re-arm the EQ */
9963 lpfc_sli4_eq_release(eq
, LPFC_QUEUE_REARM
);
9967 * lpfc_sli4_sp_intr_handler - Slow-path interrupt handler to SLI-4 device
9968 * @irq: Interrupt number.
9969 * @dev_id: The device context pointer.
9971 * This function is directly called from the PCI layer as an interrupt
9972 * service routine when device with SLI-4 interface spec is enabled with
9973 * MSI-X multi-message interrupt mode and there are slow-path events in
9974 * the HBA. However, when the device is enabled with either MSI or Pin-IRQ
9975 * interrupt mode, this function is called as part of the device-level
9976 * interrupt handler. When the PCI slot is in error recovery or the HBA is
9977 * undergoing initialization, the interrupt handler will not process the
9978 * interrupt. The link attention and ELS ring attention events are handled
9979 * by the worker thread. The interrupt handler signals the worker thread
9980 * and returns for these events. This function is called without any lock
9981 * held. It gets the hbalock to access and update SLI data structures.
9983 * This function returns IRQ_HANDLED when interrupt is handled else it
9987 lpfc_sli4_sp_intr_handler(int irq
, void *dev_id
)
9989 struct lpfc_hba
*phba
;
9990 struct lpfc_queue
*speq
;
9991 struct lpfc_eqe
*eqe
;
9992 unsigned long iflag
;
9996 * Get the driver's phba structure from the dev_id
9998 phba
= (struct lpfc_hba
*)dev_id
;
10000 if (unlikely(!phba
))
10003 /* Get to the EQ struct associated with this vector */
10004 speq
= phba
->sli4_hba
.sp_eq
;
10006 /* Check device state for handling interrupt */
10007 if (unlikely(lpfc_intr_state_check(phba
))) {
10008 /* Check again for link_state with lock held */
10009 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10010 if (phba
->link_state
< LPFC_LINK_DOWN
)
10011 /* Flush, clear interrupt, and rearm the EQ */
10012 lpfc_sli4_eq_flush(phba
, speq
);
10013 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10018 * Process all the event on FCP slow-path EQ
10020 while ((eqe
= lpfc_sli4_eq_get(speq
))) {
10021 lpfc_sli4_sp_handle_eqe(phba
, eqe
);
10022 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
10023 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_NOARM
);
10026 /* Always clear and re-arm the slow-path EQ */
10027 lpfc_sli4_eq_release(speq
, LPFC_QUEUE_REARM
);
10029 /* Catch the no cq entry condition */
10030 if (unlikely(ecount
== 0)) {
10031 if (phba
->intr_type
== MSIX
)
10032 /* MSI-X treated interrupt served as no EQ share INT */
10033 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10034 "0357 MSI-X interrupt with no EQE\n");
10036 /* Non MSI-X treated on interrupt as EQ share INT */
10040 return IRQ_HANDLED
;
10041 } /* lpfc_sli4_sp_intr_handler */
10044 * lpfc_sli4_fp_intr_handler - Fast-path interrupt handler to SLI-4 device
10045 * @irq: Interrupt number.
10046 * @dev_id: The device context pointer.
10048 * This function is directly called from the PCI layer as an interrupt
10049 * service routine when device with SLI-4 interface spec is enabled with
10050 * MSI-X multi-message interrupt mode and there is a fast-path FCP IOCB
10051 * ring event in the HBA. However, when the device is enabled with either
10052 * MSI or Pin-IRQ interrupt mode, this function is called as part of the
10053 * device-level interrupt handler. When the PCI slot is in error recovery
10054 * or the HBA is undergoing initialization, the interrupt handler will not
10055 * process the interrupt. The SCSI FCP fast-path ring event are handled in
10056 * the intrrupt context. This function is called without any lock held.
10057 * It gets the hbalock to access and update SLI data structures. Note that,
10058 * the FCP EQ to FCP CQ are one-to-one map such that the FCP EQ index is
10059 * equal to that of FCP CQ index.
10061 * This function returns IRQ_HANDLED when interrupt is handled else it
10062 * returns IRQ_NONE.
10065 lpfc_sli4_fp_intr_handler(int irq
, void *dev_id
)
10067 struct lpfc_hba
*phba
;
10068 struct lpfc_fcp_eq_hdl
*fcp_eq_hdl
;
10069 struct lpfc_queue
*fpeq
;
10070 struct lpfc_eqe
*eqe
;
10071 unsigned long iflag
;
10073 uint32_t fcp_eqidx
;
10075 /* Get the driver's phba structure from the dev_id */
10076 fcp_eq_hdl
= (struct lpfc_fcp_eq_hdl
*)dev_id
;
10077 phba
= fcp_eq_hdl
->phba
;
10078 fcp_eqidx
= fcp_eq_hdl
->idx
;
10080 if (unlikely(!phba
))
10083 /* Get to the EQ struct associated with this vector */
10084 fpeq
= phba
->sli4_hba
.fp_eq
[fcp_eqidx
];
10086 /* Check device state for handling interrupt */
10087 if (unlikely(lpfc_intr_state_check(phba
))) {
10088 /* Check again for link_state with lock held */
10089 spin_lock_irqsave(&phba
->hbalock
, iflag
);
10090 if (phba
->link_state
< LPFC_LINK_DOWN
)
10091 /* Flush, clear interrupt, and rearm the EQ */
10092 lpfc_sli4_eq_flush(phba
, fpeq
);
10093 spin_unlock_irqrestore(&phba
->hbalock
, iflag
);
10098 * Process all the event on FCP fast-path EQ
10100 while ((eqe
= lpfc_sli4_eq_get(fpeq
))) {
10101 lpfc_sli4_fp_handle_eqe(phba
, eqe
, fcp_eqidx
);
10102 if (!(++ecount
% LPFC_GET_QE_REL_INT
))
10103 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_NOARM
);
10106 /* Always clear and re-arm the fast-path EQ */
10107 lpfc_sli4_eq_release(fpeq
, LPFC_QUEUE_REARM
);
10109 if (unlikely(ecount
== 0)) {
10110 if (phba
->intr_type
== MSIX
)
10111 /* MSI-X treated interrupt served as no EQ share INT */
10112 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
10113 "0358 MSI-X interrupt with no EQE\n");
10115 /* Non MSI-X treated on interrupt as EQ share INT */
10119 return IRQ_HANDLED
;
10120 } /* lpfc_sli4_fp_intr_handler */
10123 * lpfc_sli4_intr_handler - Device-level interrupt handler for SLI-4 device
10124 * @irq: Interrupt number.
10125 * @dev_id: The device context pointer.
10127 * This function is the device-level interrupt handler to device with SLI-4
10128 * interface spec, called from the PCI layer when either MSI or Pin-IRQ
10129 * interrupt mode is enabled and there is an event in the HBA which requires
10130 * driver attention. This function invokes the slow-path interrupt attention
10131 * handling function and fast-path interrupt attention handling function in
10132 * turn to process the relevant HBA attention events. This function is called
10133 * without any lock held. It gets the hbalock to access and update SLI data
10136 * This function returns IRQ_HANDLED when interrupt is handled, else it
10137 * returns IRQ_NONE.
10140 lpfc_sli4_intr_handler(int irq
, void *dev_id
)
10142 struct lpfc_hba
*phba
;
10143 irqreturn_t sp_irq_rc
, fp_irq_rc
;
10144 bool fp_handled
= false;
10145 uint32_t fcp_eqidx
;
10147 /* Get the driver's phba structure from the dev_id */
10148 phba
= (struct lpfc_hba
*)dev_id
;
10150 if (unlikely(!phba
))
10154 * Invokes slow-path host attention interrupt handling as appropriate.
10156 sp_irq_rc
= lpfc_sli4_sp_intr_handler(irq
, dev_id
);
10159 * Invoke fast-path host attention interrupt handling as appropriate.
10161 for (fcp_eqidx
= 0; fcp_eqidx
< phba
->cfg_fcp_eq_count
; fcp_eqidx
++) {
10162 fp_irq_rc
= lpfc_sli4_fp_intr_handler(irq
,
10163 &phba
->sli4_hba
.fcp_eq_hdl
[fcp_eqidx
]);
10164 if (fp_irq_rc
== IRQ_HANDLED
)
10165 fp_handled
|= true;
10168 return (fp_handled
== true) ? IRQ_HANDLED
: sp_irq_rc
;
10169 } /* lpfc_sli4_intr_handler */
10172 * lpfc_sli4_queue_free - free a queue structure and associated memory
10173 * @queue: The queue structure to free.
10175 * This function frees a queue structure and the DMAable memory used for
10176 * the host resident queue. This function must be called after destroying the
10177 * queue on the HBA.
10180 lpfc_sli4_queue_free(struct lpfc_queue
*queue
)
10182 struct lpfc_dmabuf
*dmabuf
;
10187 while (!list_empty(&queue
->page_list
)) {
10188 list_remove_head(&queue
->page_list
, dmabuf
, struct lpfc_dmabuf
,
10190 dma_free_coherent(&queue
->phba
->pcidev
->dev
, SLI4_PAGE_SIZE
,
10191 dmabuf
->virt
, dmabuf
->phys
);
10199 * lpfc_sli4_queue_alloc - Allocate and initialize a queue structure
10200 * @phba: The HBA that this queue is being created on.
10201 * @entry_size: The size of each queue entry for this queue.
10202 * @entry count: The number of entries that this queue will handle.
10204 * This function allocates a queue structure and the DMAable memory used for
10205 * the host resident queue. This function must be called before creating the
10206 * queue on the HBA.
10208 struct lpfc_queue
*
10209 lpfc_sli4_queue_alloc(struct lpfc_hba
*phba
, uint32_t entry_size
,
10210 uint32_t entry_count
)
10212 struct lpfc_queue
*queue
;
10213 struct lpfc_dmabuf
*dmabuf
;
10214 int x
, total_qe_count
;
10216 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10218 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10219 hw_page_size
= SLI4_PAGE_SIZE
;
10221 queue
= kzalloc(sizeof(struct lpfc_queue
) +
10222 (sizeof(union sli4_qe
) * entry_count
), GFP_KERNEL
);
10225 queue
->page_count
= (ALIGN(entry_size
* entry_count
,
10226 hw_page_size
))/hw_page_size
;
10227 INIT_LIST_HEAD(&queue
->list
);
10228 INIT_LIST_HEAD(&queue
->page_list
);
10229 INIT_LIST_HEAD(&queue
->child_list
);
10230 for (x
= 0, total_qe_count
= 0; x
< queue
->page_count
; x
++) {
10231 dmabuf
= kzalloc(sizeof(struct lpfc_dmabuf
), GFP_KERNEL
);
10234 dmabuf
->virt
= dma_alloc_coherent(&phba
->pcidev
->dev
,
10235 hw_page_size
, &dmabuf
->phys
,
10237 if (!dmabuf
->virt
) {
10241 memset(dmabuf
->virt
, 0, hw_page_size
);
10242 dmabuf
->buffer_tag
= x
;
10243 list_add_tail(&dmabuf
->list
, &queue
->page_list
);
10244 /* initialize queue's entry array */
10245 dma_pointer
= dmabuf
->virt
;
10246 for (; total_qe_count
< entry_count
&&
10247 dma_pointer
< (hw_page_size
+ dmabuf
->virt
);
10248 total_qe_count
++, dma_pointer
+= entry_size
) {
10249 queue
->qe
[total_qe_count
].address
= dma_pointer
;
10252 queue
->entry_size
= entry_size
;
10253 queue
->entry_count
= entry_count
;
10254 queue
->phba
= phba
;
10258 lpfc_sli4_queue_free(queue
);
10263 * lpfc_eq_create - Create an Event Queue on the HBA
10264 * @phba: HBA structure that indicates port to create a queue on.
10265 * @eq: The queue structure to use to create the event queue.
10266 * @imax: The maximum interrupt per second limit.
10268 * This function creates an event queue, as detailed in @eq, on a port,
10269 * described by @phba by sending an EQ_CREATE mailbox command to the HBA.
10271 * The @phba struct is used to send mailbox command to HBA. The @eq struct
10272 * is used to get the entry count and entry size that are necessary to
10273 * determine the number of pages to allocate and use for this queue. This
10274 * function will send the EQ_CREATE mailbox command to the HBA to setup the
10275 * event queue. This function is asynchronous and will wait for the mailbox
10276 * command to finish before continuing.
10278 * On success this function will return a zero. If unable to allocate enough
10279 * memory this function will return -ENOMEM. If the queue create mailbox command
10280 * fails this function will return -ENXIO.
10283 lpfc_eq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
, uint16_t imax
)
10285 struct lpfc_mbx_eq_create
*eq_create
;
10286 LPFC_MBOXQ_t
*mbox
;
10287 int rc
, length
, status
= 0;
10288 struct lpfc_dmabuf
*dmabuf
;
10289 uint32_t shdr_status
, shdr_add_status
;
10290 union lpfc_sli4_cfg_shdr
*shdr
;
10292 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10294 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10295 hw_page_size
= SLI4_PAGE_SIZE
;
10297 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10300 length
= (sizeof(struct lpfc_mbx_eq_create
) -
10301 sizeof(struct lpfc_sli4_cfg_mhdr
));
10302 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10303 LPFC_MBOX_OPCODE_EQ_CREATE
,
10304 length
, LPFC_SLI4_MBX_EMBED
);
10305 eq_create
= &mbox
->u
.mqe
.un
.eq_create
;
10306 bf_set(lpfc_mbx_eq_create_num_pages
, &eq_create
->u
.request
,
10308 bf_set(lpfc_eq_context_size
, &eq_create
->u
.request
.context
,
10310 bf_set(lpfc_eq_context_valid
, &eq_create
->u
.request
.context
, 1);
10311 /* Calculate delay multiper from maximum interrupt per second */
10312 dmult
= LPFC_DMULT_CONST
/imax
- 1;
10313 bf_set(lpfc_eq_context_delay_multi
, &eq_create
->u
.request
.context
,
10315 switch (eq
->entry_count
) {
10317 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10318 "0360 Unsupported EQ count. (%d)\n",
10320 if (eq
->entry_count
< 256)
10322 /* otherwise default to smallest count (drop through) */
10324 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10328 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10332 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10336 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10340 bf_set(lpfc_eq_context_count
, &eq_create
->u
.request
.context
,
10344 list_for_each_entry(dmabuf
, &eq
->page_list
, list
) {
10345 memset(dmabuf
->virt
, 0, hw_page_size
);
10346 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10347 putPaddrLow(dmabuf
->phys
);
10348 eq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10349 putPaddrHigh(dmabuf
->phys
);
10351 mbox
->vport
= phba
->pport
;
10352 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10353 mbox
->context1
= NULL
;
10354 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10355 shdr
= (union lpfc_sli4_cfg_shdr
*) &eq_create
->header
.cfg_shdr
;
10356 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10357 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10358 if (shdr_status
|| shdr_add_status
|| rc
) {
10359 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10360 "2500 EQ_CREATE mailbox failed with "
10361 "status x%x add_status x%x, mbx status x%x\n",
10362 shdr_status
, shdr_add_status
, rc
);
10365 eq
->type
= LPFC_EQ
;
10366 eq
->subtype
= LPFC_NONE
;
10367 eq
->queue_id
= bf_get(lpfc_mbx_eq_create_q_id
, &eq_create
->u
.response
);
10368 if (eq
->queue_id
== 0xFFFF)
10370 eq
->host_index
= 0;
10373 mempool_free(mbox
, phba
->mbox_mem_pool
);
10378 * lpfc_cq_create - Create a Completion Queue on the HBA
10379 * @phba: HBA structure that indicates port to create a queue on.
10380 * @cq: The queue structure to use to create the completion queue.
10381 * @eq: The event queue to bind this completion queue to.
10383 * This function creates a completion queue, as detailed in @wq, on a port,
10384 * described by @phba by sending a CQ_CREATE mailbox command to the HBA.
10386 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10387 * is used to get the entry count and entry size that are necessary to
10388 * determine the number of pages to allocate and use for this queue. The @eq
10389 * is used to indicate which event queue to bind this completion queue to. This
10390 * function will send the CQ_CREATE mailbox command to the HBA to setup the
10391 * completion queue. This function is asynchronous and will wait for the mailbox
10392 * command to finish before continuing.
10394 * On success this function will return a zero. If unable to allocate enough
10395 * memory this function will return -ENOMEM. If the queue create mailbox command
10396 * fails this function will return -ENXIO.
10399 lpfc_cq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
,
10400 struct lpfc_queue
*eq
, uint32_t type
, uint32_t subtype
)
10402 struct lpfc_mbx_cq_create
*cq_create
;
10403 struct lpfc_dmabuf
*dmabuf
;
10404 LPFC_MBOXQ_t
*mbox
;
10405 int rc
, length
, status
= 0;
10406 uint32_t shdr_status
, shdr_add_status
;
10407 union lpfc_sli4_cfg_shdr
*shdr
;
10408 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10410 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10411 hw_page_size
= SLI4_PAGE_SIZE
;
10414 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10417 length
= (sizeof(struct lpfc_mbx_cq_create
) -
10418 sizeof(struct lpfc_sli4_cfg_mhdr
));
10419 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10420 LPFC_MBOX_OPCODE_CQ_CREATE
,
10421 length
, LPFC_SLI4_MBX_EMBED
);
10422 cq_create
= &mbox
->u
.mqe
.un
.cq_create
;
10423 bf_set(lpfc_mbx_cq_create_num_pages
, &cq_create
->u
.request
,
10425 bf_set(lpfc_cq_context_event
, &cq_create
->u
.request
.context
, 1);
10426 bf_set(lpfc_cq_context_valid
, &cq_create
->u
.request
.context
, 1);
10427 bf_set(lpfc_cq_eq_id
, &cq_create
->u
.request
.context
, eq
->queue_id
);
10428 switch (cq
->entry_count
) {
10430 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10431 "0361 Unsupported CQ count. (%d)\n",
10433 if (cq
->entry_count
< 256)
10435 /* otherwise default to smallest count (drop through) */
10437 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10441 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10445 bf_set(lpfc_cq_context_count
, &cq_create
->u
.request
.context
,
10449 list_for_each_entry(dmabuf
, &cq
->page_list
, list
) {
10450 memset(dmabuf
->virt
, 0, hw_page_size
);
10451 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10452 putPaddrLow(dmabuf
->phys
);
10453 cq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10454 putPaddrHigh(dmabuf
->phys
);
10456 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10458 /* The IOCTL status is embedded in the mailbox subheader. */
10459 shdr
= (union lpfc_sli4_cfg_shdr
*) &cq_create
->header
.cfg_shdr
;
10460 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10461 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10462 if (shdr_status
|| shdr_add_status
|| rc
) {
10463 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10464 "2501 CQ_CREATE mailbox failed with "
10465 "status x%x add_status x%x, mbx status x%x\n",
10466 shdr_status
, shdr_add_status
, rc
);
10470 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
10471 if (cq
->queue_id
== 0xFFFF) {
10475 /* link the cq onto the parent eq child list */
10476 list_add_tail(&cq
->list
, &eq
->child_list
);
10477 /* Set up completion queue's type and subtype */
10479 cq
->subtype
= subtype
;
10480 cq
->queue_id
= bf_get(lpfc_mbx_cq_create_q_id
, &cq_create
->u
.response
);
10481 cq
->host_index
= 0;
10485 mempool_free(mbox
, phba
->mbox_mem_pool
);
10490 * lpfc_mq_create_fb_init - Send MCC_CREATE without async events registration
10491 * @phba: HBA structure that indicates port to create a queue on.
10492 * @mq: The queue structure to use to create the mailbox queue.
10493 * @mbox: An allocated pointer to type LPFC_MBOXQ_t
10494 * @cq: The completion queue to associate with this cq.
10496 * This function provides failback (fb) functionality when the
10497 * mq_create_ext fails on older FW generations. It's purpose is identical
10498 * to mq_create_ext otherwise.
10500 * This routine cannot fail as all attributes were previously accessed and
10501 * initialized in mq_create_ext.
10504 lpfc_mq_create_fb_init(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10505 LPFC_MBOXQ_t
*mbox
, struct lpfc_queue
*cq
)
10507 struct lpfc_mbx_mq_create
*mq_create
;
10508 struct lpfc_dmabuf
*dmabuf
;
10511 length
= (sizeof(struct lpfc_mbx_mq_create
) -
10512 sizeof(struct lpfc_sli4_cfg_mhdr
));
10513 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10514 LPFC_MBOX_OPCODE_MQ_CREATE
,
10515 length
, LPFC_SLI4_MBX_EMBED
);
10516 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10517 bf_set(lpfc_mbx_mq_create_num_pages
, &mq_create
->u
.request
,
10519 bf_set(lpfc_mq_context_cq_id
, &mq_create
->u
.request
.context
,
10521 bf_set(lpfc_mq_context_valid
, &mq_create
->u
.request
.context
, 1);
10522 switch (mq
->entry_count
) {
10524 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10528 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10532 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10536 bf_set(lpfc_mq_context_count
, &mq_create
->u
.request
.context
,
10540 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10541 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10542 putPaddrLow(dmabuf
->phys
);
10543 mq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10544 putPaddrHigh(dmabuf
->phys
);
10549 * lpfc_mq_create - Create a mailbox Queue on the HBA
10550 * @phba: HBA structure that indicates port to create a queue on.
10551 * @mq: The queue structure to use to create the mailbox queue.
10552 * @cq: The completion queue to associate with this cq.
10553 * @subtype: The queue's subtype.
10555 * This function creates a mailbox queue, as detailed in @mq, on a port,
10556 * described by @phba by sending a MQ_CREATE mailbox command to the HBA.
10558 * The @phba struct is used to send mailbox command to HBA. The @cq struct
10559 * is used to get the entry count and entry size that are necessary to
10560 * determine the number of pages to allocate and use for this queue. This
10561 * function will send the MQ_CREATE mailbox command to the HBA to setup the
10562 * mailbox queue. This function is asynchronous and will wait for the mailbox
10563 * command to finish before continuing.
10565 * On success this function will return a zero. If unable to allocate enough
10566 * memory this function will return -ENOMEM. If the queue create mailbox command
10567 * fails this function will return -ENXIO.
10570 lpfc_mq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
,
10571 struct lpfc_queue
*cq
, uint32_t subtype
)
10573 struct lpfc_mbx_mq_create
*mq_create
;
10574 struct lpfc_mbx_mq_create_ext
*mq_create_ext
;
10575 struct lpfc_dmabuf
*dmabuf
;
10576 LPFC_MBOXQ_t
*mbox
;
10577 int rc
, length
, status
= 0;
10578 uint32_t shdr_status
, shdr_add_status
;
10579 union lpfc_sli4_cfg_shdr
*shdr
;
10580 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10582 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10583 hw_page_size
= SLI4_PAGE_SIZE
;
10585 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10588 length
= (sizeof(struct lpfc_mbx_mq_create_ext
) -
10589 sizeof(struct lpfc_sli4_cfg_mhdr
));
10590 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10591 LPFC_MBOX_OPCODE_MQ_CREATE_EXT
,
10592 length
, LPFC_SLI4_MBX_EMBED
);
10594 mq_create_ext
= &mbox
->u
.mqe
.un
.mq_create_ext
;
10595 bf_set(lpfc_mbx_mq_create_ext_num_pages
,
10596 &mq_create_ext
->u
.request
, mq
->page_count
);
10597 bf_set(lpfc_mbx_mq_create_ext_async_evt_link
,
10598 &mq_create_ext
->u
.request
, 1);
10599 bf_set(lpfc_mbx_mq_create_ext_async_evt_fip
,
10600 &mq_create_ext
->u
.request
, 1);
10601 bf_set(lpfc_mbx_mq_create_ext_async_evt_group5
,
10602 &mq_create_ext
->u
.request
, 1);
10603 bf_set(lpfc_mbx_mq_create_ext_async_evt_fc
,
10604 &mq_create_ext
->u
.request
, 1);
10605 bf_set(lpfc_mbx_mq_create_ext_async_evt_sli
,
10606 &mq_create_ext
->u
.request
, 1);
10607 bf_set(lpfc_mq_context_cq_id
,
10608 &mq_create_ext
->u
.request
.context
, cq
->queue_id
);
10609 bf_set(lpfc_mq_context_valid
, &mq_create_ext
->u
.request
.context
, 1);
10610 switch (mq
->entry_count
) {
10612 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10613 "0362 Unsupported MQ count. (%d)\n",
10615 if (mq
->entry_count
< 16)
10617 /* otherwise default to smallest count (drop through) */
10619 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10623 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10627 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10631 bf_set(lpfc_mq_context_count
, &mq_create_ext
->u
.request
.context
,
10635 list_for_each_entry(dmabuf
, &mq
->page_list
, list
) {
10636 memset(dmabuf
->virt
, 0, hw_page_size
);
10637 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10638 putPaddrLow(dmabuf
->phys
);
10639 mq_create_ext
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10640 putPaddrHigh(dmabuf
->phys
);
10642 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10643 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create_ext
->header
.cfg_shdr
;
10644 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10645 &mq_create_ext
->u
.response
);
10646 if (rc
!= MBX_SUCCESS
) {
10647 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
10648 "2795 MQ_CREATE_EXT failed with "
10649 "status x%x. Failback to MQ_CREATE.\n",
10651 lpfc_mq_create_fb_init(phba
, mq
, mbox
, cq
);
10652 mq_create
= &mbox
->u
.mqe
.un
.mq_create
;
10653 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10654 shdr
= (union lpfc_sli4_cfg_shdr
*) &mq_create
->header
.cfg_shdr
;
10655 mq
->queue_id
= bf_get(lpfc_mbx_mq_create_q_id
,
10656 &mq_create
->u
.response
);
10659 /* The IOCTL status is embedded in the mailbox subheader. */
10660 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10661 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10662 if (shdr_status
|| shdr_add_status
|| rc
) {
10663 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10664 "2502 MQ_CREATE mailbox failed with "
10665 "status x%x add_status x%x, mbx status x%x\n",
10666 shdr_status
, shdr_add_status
, rc
);
10670 if (mq
->queue_id
== 0xFFFF) {
10674 mq
->type
= LPFC_MQ
;
10675 mq
->subtype
= subtype
;
10676 mq
->host_index
= 0;
10679 /* link the mq onto the parent cq child list */
10680 list_add_tail(&mq
->list
, &cq
->child_list
);
10682 mempool_free(mbox
, phba
->mbox_mem_pool
);
10687 * lpfc_wq_create - Create a Work Queue on the HBA
10688 * @phba: HBA structure that indicates port to create a queue on.
10689 * @wq: The queue structure to use to create the work queue.
10690 * @cq: The completion queue to bind this work queue to.
10691 * @subtype: The subtype of the work queue indicating its functionality.
10693 * This function creates a work queue, as detailed in @wq, on a port, described
10694 * by @phba by sending a WQ_CREATE mailbox command to the HBA.
10696 * The @phba struct is used to send mailbox command to HBA. The @wq struct
10697 * is used to get the entry count and entry size that are necessary to
10698 * determine the number of pages to allocate and use for this queue. The @cq
10699 * is used to indicate which completion queue to bind this work queue to. This
10700 * function will send the WQ_CREATE mailbox command to the HBA to setup the
10701 * work queue. This function is asynchronous and will wait for the mailbox
10702 * command to finish before continuing.
10704 * On success this function will return a zero. If unable to allocate enough
10705 * memory this function will return -ENOMEM. If the queue create mailbox command
10706 * fails this function will return -ENXIO.
10709 lpfc_wq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
,
10710 struct lpfc_queue
*cq
, uint32_t subtype
)
10712 struct lpfc_mbx_wq_create
*wq_create
;
10713 struct lpfc_dmabuf
*dmabuf
;
10714 LPFC_MBOXQ_t
*mbox
;
10715 int rc
, length
, status
= 0;
10716 uint32_t shdr_status
, shdr_add_status
;
10717 union lpfc_sli4_cfg_shdr
*shdr
;
10718 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10720 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10721 hw_page_size
= SLI4_PAGE_SIZE
;
10723 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10726 length
= (sizeof(struct lpfc_mbx_wq_create
) -
10727 sizeof(struct lpfc_sli4_cfg_mhdr
));
10728 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10729 LPFC_MBOX_OPCODE_FCOE_WQ_CREATE
,
10730 length
, LPFC_SLI4_MBX_EMBED
);
10731 wq_create
= &mbox
->u
.mqe
.un
.wq_create
;
10732 bf_set(lpfc_mbx_wq_create_num_pages
, &wq_create
->u
.request
,
10734 bf_set(lpfc_mbx_wq_create_cq_id
, &wq_create
->u
.request
,
10736 list_for_each_entry(dmabuf
, &wq
->page_list
, list
) {
10737 memset(dmabuf
->virt
, 0, hw_page_size
);
10738 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10739 putPaddrLow(dmabuf
->phys
);
10740 wq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10741 putPaddrHigh(dmabuf
->phys
);
10743 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10744 /* The IOCTL status is embedded in the mailbox subheader. */
10745 shdr
= (union lpfc_sli4_cfg_shdr
*) &wq_create
->header
.cfg_shdr
;
10746 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10747 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10748 if (shdr_status
|| shdr_add_status
|| rc
) {
10749 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10750 "2503 WQ_CREATE mailbox failed with "
10751 "status x%x add_status x%x, mbx status x%x\n",
10752 shdr_status
, shdr_add_status
, rc
);
10756 wq
->queue_id
= bf_get(lpfc_mbx_wq_create_q_id
, &wq_create
->u
.response
);
10757 if (wq
->queue_id
== 0xFFFF) {
10761 wq
->type
= LPFC_WQ
;
10762 wq
->subtype
= subtype
;
10763 wq
->host_index
= 0;
10766 /* link the wq onto the parent cq child list */
10767 list_add_tail(&wq
->list
, &cq
->child_list
);
10769 mempool_free(mbox
, phba
->mbox_mem_pool
);
10774 * lpfc_rq_create - Create a Receive Queue on the HBA
10775 * @phba: HBA structure that indicates port to create a queue on.
10776 * @hrq: The queue structure to use to create the header receive queue.
10777 * @drq: The queue structure to use to create the data receive queue.
10778 * @cq: The completion queue to bind this work queue to.
10780 * This function creates a receive buffer queue pair , as detailed in @hrq and
10781 * @drq, on a port, described by @phba by sending a RQ_CREATE mailbox command
10784 * The @phba struct is used to send mailbox command to HBA. The @drq and @hrq
10785 * struct is used to get the entry count that is necessary to determine the
10786 * number of pages to use for this queue. The @cq is used to indicate which
10787 * completion queue to bind received buffers that are posted to these queues to.
10788 * This function will send the RQ_CREATE mailbox command to the HBA to setup the
10789 * receive queue pair. This function is asynchronous and will wait for the
10790 * mailbox command to finish before continuing.
10792 * On success this function will return a zero. If unable to allocate enough
10793 * memory this function will return -ENOMEM. If the queue create mailbox command
10794 * fails this function will return -ENXIO.
10797 lpfc_rq_create(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
10798 struct lpfc_queue
*drq
, struct lpfc_queue
*cq
, uint32_t subtype
)
10800 struct lpfc_mbx_rq_create
*rq_create
;
10801 struct lpfc_dmabuf
*dmabuf
;
10802 LPFC_MBOXQ_t
*mbox
;
10803 int rc
, length
, status
= 0;
10804 uint32_t shdr_status
, shdr_add_status
;
10805 union lpfc_sli4_cfg_shdr
*shdr
;
10806 uint32_t hw_page_size
= phba
->sli4_hba
.pc_sli4_params
.if_page_sz
;
10808 if (!phba
->sli4_hba
.pc_sli4_params
.supported
)
10809 hw_page_size
= SLI4_PAGE_SIZE
;
10811 if (hrq
->entry_count
!= drq
->entry_count
)
10813 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
10816 length
= (sizeof(struct lpfc_mbx_rq_create
) -
10817 sizeof(struct lpfc_sli4_cfg_mhdr
));
10818 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10819 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10820 length
, LPFC_SLI4_MBX_EMBED
);
10821 rq_create
= &mbox
->u
.mqe
.un
.rq_create
;
10822 switch (hrq
->entry_count
) {
10824 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10825 "2535 Unsupported RQ count. (%d)\n",
10827 if (hrq
->entry_count
< 512)
10829 /* otherwise default to smallest count (drop through) */
10831 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10832 LPFC_RQ_RING_SIZE_512
);
10835 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10836 LPFC_RQ_RING_SIZE_1024
);
10839 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10840 LPFC_RQ_RING_SIZE_2048
);
10843 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10844 LPFC_RQ_RING_SIZE_4096
);
10847 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10849 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10851 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10852 LPFC_HDR_BUF_SIZE
);
10853 list_for_each_entry(dmabuf
, &hrq
->page_list
, list
) {
10854 memset(dmabuf
->virt
, 0, hw_page_size
);
10855 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10856 putPaddrLow(dmabuf
->phys
);
10857 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10858 putPaddrHigh(dmabuf
->phys
);
10860 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10861 /* The IOCTL status is embedded in the mailbox subheader. */
10862 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10863 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10864 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10865 if (shdr_status
|| shdr_add_status
|| rc
) {
10866 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10867 "2504 RQ_CREATE mailbox failed with "
10868 "status x%x add_status x%x, mbx status x%x\n",
10869 shdr_status
, shdr_add_status
, rc
);
10873 hrq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10874 if (hrq
->queue_id
== 0xFFFF) {
10878 hrq
->type
= LPFC_HRQ
;
10879 hrq
->subtype
= subtype
;
10880 hrq
->host_index
= 0;
10881 hrq
->hba_index
= 0;
10883 /* now create the data queue */
10884 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
10885 LPFC_MBOX_OPCODE_FCOE_RQ_CREATE
,
10886 length
, LPFC_SLI4_MBX_EMBED
);
10887 switch (drq
->entry_count
) {
10889 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
10890 "2536 Unsupported RQ count. (%d)\n",
10892 if (drq
->entry_count
< 512)
10894 /* otherwise default to smallest count (drop through) */
10896 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10897 LPFC_RQ_RING_SIZE_512
);
10900 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10901 LPFC_RQ_RING_SIZE_1024
);
10904 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10905 LPFC_RQ_RING_SIZE_2048
);
10908 bf_set(lpfc_rq_context_rq_size
, &rq_create
->u
.request
.context
,
10909 LPFC_RQ_RING_SIZE_4096
);
10912 bf_set(lpfc_rq_context_cq_id
, &rq_create
->u
.request
.context
,
10914 bf_set(lpfc_mbx_rq_create_num_pages
, &rq_create
->u
.request
,
10916 bf_set(lpfc_rq_context_buf_size
, &rq_create
->u
.request
.context
,
10917 LPFC_DATA_BUF_SIZE
);
10918 list_for_each_entry(dmabuf
, &drq
->page_list
, list
) {
10919 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_lo
=
10920 putPaddrLow(dmabuf
->phys
);
10921 rq_create
->u
.request
.page
[dmabuf
->buffer_tag
].addr_hi
=
10922 putPaddrHigh(dmabuf
->phys
);
10924 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
10925 /* The IOCTL status is embedded in the mailbox subheader. */
10926 shdr
= (union lpfc_sli4_cfg_shdr
*) &rq_create
->header
.cfg_shdr
;
10927 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10928 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10929 if (shdr_status
|| shdr_add_status
|| rc
) {
10933 drq
->queue_id
= bf_get(lpfc_mbx_rq_create_q_id
, &rq_create
->u
.response
);
10934 if (drq
->queue_id
== 0xFFFF) {
10938 drq
->type
= LPFC_DRQ
;
10939 drq
->subtype
= subtype
;
10940 drq
->host_index
= 0;
10941 drq
->hba_index
= 0;
10943 /* link the header and data RQs onto the parent cq child list */
10944 list_add_tail(&hrq
->list
, &cq
->child_list
);
10945 list_add_tail(&drq
->list
, &cq
->child_list
);
10948 mempool_free(mbox
, phba
->mbox_mem_pool
);
10953 * lpfc_eq_destroy - Destroy an event Queue on the HBA
10954 * @eq: The queue structure associated with the queue to destroy.
10956 * This function destroys a queue, as detailed in @eq by sending an mailbox
10957 * command, specific to the type of queue, to the HBA.
10959 * The @eq struct is used to get the queue ID of the queue to destroy.
10961 * On success this function will return a zero. If the queue destroy mailbox
10962 * command fails this function will return -ENXIO.
10965 lpfc_eq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*eq
)
10967 LPFC_MBOXQ_t
*mbox
;
10968 int rc
, length
, status
= 0;
10969 uint32_t shdr_status
, shdr_add_status
;
10970 union lpfc_sli4_cfg_shdr
*shdr
;
10974 mbox
= mempool_alloc(eq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
10977 length
= (sizeof(struct lpfc_mbx_eq_destroy
) -
10978 sizeof(struct lpfc_sli4_cfg_mhdr
));
10979 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
10980 LPFC_MBOX_OPCODE_EQ_DESTROY
,
10981 length
, LPFC_SLI4_MBX_EMBED
);
10982 bf_set(lpfc_mbx_eq_destroy_q_id
, &mbox
->u
.mqe
.un
.eq_destroy
.u
.request
,
10984 mbox
->vport
= eq
->phba
->pport
;
10985 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
10987 rc
= lpfc_sli_issue_mbox(eq
->phba
, mbox
, MBX_POLL
);
10988 /* The IOCTL status is embedded in the mailbox subheader. */
10989 shdr
= (union lpfc_sli4_cfg_shdr
*)
10990 &mbox
->u
.mqe
.un
.eq_destroy
.header
.cfg_shdr
;
10991 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
10992 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
10993 if (shdr_status
|| shdr_add_status
|| rc
) {
10994 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
10995 "2505 EQ_DESTROY mailbox failed with "
10996 "status x%x add_status x%x, mbx status x%x\n",
10997 shdr_status
, shdr_add_status
, rc
);
11001 /* Remove eq from any list */
11002 list_del_init(&eq
->list
);
11003 mempool_free(mbox
, eq
->phba
->mbox_mem_pool
);
11008 * lpfc_cq_destroy - Destroy a Completion Queue on the HBA
11009 * @cq: The queue structure associated with the queue to destroy.
11011 * This function destroys a queue, as detailed in @cq by sending an mailbox
11012 * command, specific to the type of queue, to the HBA.
11014 * The @cq struct is used to get the queue ID of the queue to destroy.
11016 * On success this function will return a zero. If the queue destroy mailbox
11017 * command fails this function will return -ENXIO.
11020 lpfc_cq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*cq
)
11022 LPFC_MBOXQ_t
*mbox
;
11023 int rc
, length
, status
= 0;
11024 uint32_t shdr_status
, shdr_add_status
;
11025 union lpfc_sli4_cfg_shdr
*shdr
;
11029 mbox
= mempool_alloc(cq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11032 length
= (sizeof(struct lpfc_mbx_cq_destroy
) -
11033 sizeof(struct lpfc_sli4_cfg_mhdr
));
11034 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
11035 LPFC_MBOX_OPCODE_CQ_DESTROY
,
11036 length
, LPFC_SLI4_MBX_EMBED
);
11037 bf_set(lpfc_mbx_cq_destroy_q_id
, &mbox
->u
.mqe
.un
.cq_destroy
.u
.request
,
11039 mbox
->vport
= cq
->phba
->pport
;
11040 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11041 rc
= lpfc_sli_issue_mbox(cq
->phba
, mbox
, MBX_POLL
);
11042 /* The IOCTL status is embedded in the mailbox subheader. */
11043 shdr
= (union lpfc_sli4_cfg_shdr
*)
11044 &mbox
->u
.mqe
.un
.wq_create
.header
.cfg_shdr
;
11045 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11046 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11047 if (shdr_status
|| shdr_add_status
|| rc
) {
11048 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11049 "2506 CQ_DESTROY mailbox failed with "
11050 "status x%x add_status x%x, mbx status x%x\n",
11051 shdr_status
, shdr_add_status
, rc
);
11054 /* Remove cq from any list */
11055 list_del_init(&cq
->list
);
11056 mempool_free(mbox
, cq
->phba
->mbox_mem_pool
);
11061 * lpfc_mq_destroy - Destroy a Mailbox Queue on the HBA
11062 * @qm: The queue structure associated with the queue to destroy.
11064 * This function destroys a queue, as detailed in @mq by sending an mailbox
11065 * command, specific to the type of queue, to the HBA.
11067 * The @mq struct is used to get the queue ID of the queue to destroy.
11069 * On success this function will return a zero. If the queue destroy mailbox
11070 * command fails this function will return -ENXIO.
11073 lpfc_mq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*mq
)
11075 LPFC_MBOXQ_t
*mbox
;
11076 int rc
, length
, status
= 0;
11077 uint32_t shdr_status
, shdr_add_status
;
11078 union lpfc_sli4_cfg_shdr
*shdr
;
11082 mbox
= mempool_alloc(mq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11085 length
= (sizeof(struct lpfc_mbx_mq_destroy
) -
11086 sizeof(struct lpfc_sli4_cfg_mhdr
));
11087 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_COMMON
,
11088 LPFC_MBOX_OPCODE_MQ_DESTROY
,
11089 length
, LPFC_SLI4_MBX_EMBED
);
11090 bf_set(lpfc_mbx_mq_destroy_q_id
, &mbox
->u
.mqe
.un
.mq_destroy
.u
.request
,
11092 mbox
->vport
= mq
->phba
->pport
;
11093 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11094 rc
= lpfc_sli_issue_mbox(mq
->phba
, mbox
, MBX_POLL
);
11095 /* The IOCTL status is embedded in the mailbox subheader. */
11096 shdr
= (union lpfc_sli4_cfg_shdr
*)
11097 &mbox
->u
.mqe
.un
.mq_destroy
.header
.cfg_shdr
;
11098 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11099 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11100 if (shdr_status
|| shdr_add_status
|| rc
) {
11101 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11102 "2507 MQ_DESTROY mailbox failed with "
11103 "status x%x add_status x%x, mbx status x%x\n",
11104 shdr_status
, shdr_add_status
, rc
);
11107 /* Remove mq from any list */
11108 list_del_init(&mq
->list
);
11109 mempool_free(mbox
, mq
->phba
->mbox_mem_pool
);
11114 * lpfc_wq_destroy - Destroy a Work Queue on the HBA
11115 * @wq: The queue structure associated with the queue to destroy.
11117 * This function destroys a queue, as detailed in @wq by sending an mailbox
11118 * command, specific to the type of queue, to the HBA.
11120 * The @wq struct is used to get the queue ID of the queue to destroy.
11122 * On success this function will return a zero. If the queue destroy mailbox
11123 * command fails this function will return -ENXIO.
11126 lpfc_wq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*wq
)
11128 LPFC_MBOXQ_t
*mbox
;
11129 int rc
, length
, status
= 0;
11130 uint32_t shdr_status
, shdr_add_status
;
11131 union lpfc_sli4_cfg_shdr
*shdr
;
11135 mbox
= mempool_alloc(wq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11138 length
= (sizeof(struct lpfc_mbx_wq_destroy
) -
11139 sizeof(struct lpfc_sli4_cfg_mhdr
));
11140 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11141 LPFC_MBOX_OPCODE_FCOE_WQ_DESTROY
,
11142 length
, LPFC_SLI4_MBX_EMBED
);
11143 bf_set(lpfc_mbx_wq_destroy_q_id
, &mbox
->u
.mqe
.un
.wq_destroy
.u
.request
,
11145 mbox
->vport
= wq
->phba
->pport
;
11146 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11147 rc
= lpfc_sli_issue_mbox(wq
->phba
, mbox
, MBX_POLL
);
11148 shdr
= (union lpfc_sli4_cfg_shdr
*)
11149 &mbox
->u
.mqe
.un
.wq_destroy
.header
.cfg_shdr
;
11150 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11151 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11152 if (shdr_status
|| shdr_add_status
|| rc
) {
11153 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11154 "2508 WQ_DESTROY mailbox failed with "
11155 "status x%x add_status x%x, mbx status x%x\n",
11156 shdr_status
, shdr_add_status
, rc
);
11159 /* Remove wq from any list */
11160 list_del_init(&wq
->list
);
11161 mempool_free(mbox
, wq
->phba
->mbox_mem_pool
);
11166 * lpfc_rq_destroy - Destroy a Receive Queue on the HBA
11167 * @rq: The queue structure associated with the queue to destroy.
11169 * This function destroys a queue, as detailed in @rq by sending an mailbox
11170 * command, specific to the type of queue, to the HBA.
11172 * The @rq struct is used to get the queue ID of the queue to destroy.
11174 * On success this function will return a zero. If the queue destroy mailbox
11175 * command fails this function will return -ENXIO.
11178 lpfc_rq_destroy(struct lpfc_hba
*phba
, struct lpfc_queue
*hrq
,
11179 struct lpfc_queue
*drq
)
11181 LPFC_MBOXQ_t
*mbox
;
11182 int rc
, length
, status
= 0;
11183 uint32_t shdr_status
, shdr_add_status
;
11184 union lpfc_sli4_cfg_shdr
*shdr
;
11188 mbox
= mempool_alloc(hrq
->phba
->mbox_mem_pool
, GFP_KERNEL
);
11191 length
= (sizeof(struct lpfc_mbx_rq_destroy
) -
11192 sizeof(struct mbox_header
));
11193 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11194 LPFC_MBOX_OPCODE_FCOE_RQ_DESTROY
,
11195 length
, LPFC_SLI4_MBX_EMBED
);
11196 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
11198 mbox
->vport
= hrq
->phba
->pport
;
11199 mbox
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
11200 rc
= lpfc_sli_issue_mbox(hrq
->phba
, mbox
, MBX_POLL
);
11201 /* The IOCTL status is embedded in the mailbox subheader. */
11202 shdr
= (union lpfc_sli4_cfg_shdr
*)
11203 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
11204 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11205 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11206 if (shdr_status
|| shdr_add_status
|| rc
) {
11207 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11208 "2509 RQ_DESTROY mailbox failed with "
11209 "status x%x add_status x%x, mbx status x%x\n",
11210 shdr_status
, shdr_add_status
, rc
);
11211 if (rc
!= MBX_TIMEOUT
)
11212 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
11215 bf_set(lpfc_mbx_rq_destroy_q_id
, &mbox
->u
.mqe
.un
.rq_destroy
.u
.request
,
11217 rc
= lpfc_sli_issue_mbox(drq
->phba
, mbox
, MBX_POLL
);
11218 shdr
= (union lpfc_sli4_cfg_shdr
*)
11219 &mbox
->u
.mqe
.un
.rq_destroy
.header
.cfg_shdr
;
11220 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11221 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11222 if (shdr_status
|| shdr_add_status
|| rc
) {
11223 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11224 "2510 RQ_DESTROY mailbox failed with "
11225 "status x%x add_status x%x, mbx status x%x\n",
11226 shdr_status
, shdr_add_status
, rc
);
11229 list_del_init(&hrq
->list
);
11230 list_del_init(&drq
->list
);
11231 mempool_free(mbox
, hrq
->phba
->mbox_mem_pool
);
11236 * lpfc_sli4_post_sgl - Post scatter gather list for an XRI to HBA
11237 * @phba: The virtual port for which this call being executed.
11238 * @pdma_phys_addr0: Physical address of the 1st SGL page.
11239 * @pdma_phys_addr1: Physical address of the 2nd SGL page.
11240 * @xritag: the xritag that ties this io to the SGL pages.
11242 * This routine will post the sgl pages for the IO that has the xritag
11243 * that is in the iocbq structure. The xritag is assigned during iocbq
11244 * creation and persists for as long as the driver is loaded.
11245 * if the caller has fewer than 256 scatter gather segments to map then
11246 * pdma_phys_addr1 should be 0.
11247 * If the caller needs to map more than 256 scatter gather segment then
11248 * pdma_phys_addr1 should be a valid physical address.
11249 * physical address for SGLs must be 64 byte aligned.
11250 * If you are going to map 2 SGL's then the first one must have 256 entries
11251 * the second sgl can have between 1 and 256 entries.
11255 * -ENXIO, -ENOMEM - Failure
11258 lpfc_sli4_post_sgl(struct lpfc_hba
*phba
,
11259 dma_addr_t pdma_phys_addr0
,
11260 dma_addr_t pdma_phys_addr1
,
11263 struct lpfc_mbx_post_sgl_pages
*post_sgl_pages
;
11264 LPFC_MBOXQ_t
*mbox
;
11266 uint32_t shdr_status
, shdr_add_status
;
11267 union lpfc_sli4_cfg_shdr
*shdr
;
11269 if (xritag
== NO_XRI
) {
11270 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11271 "0364 Invalid param:\n");
11275 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11279 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11280 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
,
11281 sizeof(struct lpfc_mbx_post_sgl_pages
) -
11282 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
11284 post_sgl_pages
= (struct lpfc_mbx_post_sgl_pages
*)
11285 &mbox
->u
.mqe
.un
.post_sgl_pages
;
11286 bf_set(lpfc_post_sgl_pages_xri
, post_sgl_pages
, xritag
);
11287 bf_set(lpfc_post_sgl_pages_xricnt
, post_sgl_pages
, 1);
11289 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_lo
=
11290 cpu_to_le32(putPaddrLow(pdma_phys_addr0
));
11291 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg0_addr_hi
=
11292 cpu_to_le32(putPaddrHigh(pdma_phys_addr0
));
11294 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_lo
=
11295 cpu_to_le32(putPaddrLow(pdma_phys_addr1
));
11296 post_sgl_pages
->sgl_pg_pairs
[0].sgl_pg1_addr_hi
=
11297 cpu_to_le32(putPaddrHigh(pdma_phys_addr1
));
11298 if (!phba
->sli4_hba
.intr_enable
)
11299 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11301 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, LPFC_MBOX_TMO
);
11302 /* The IOCTL status is embedded in the mailbox subheader. */
11303 shdr
= (union lpfc_sli4_cfg_shdr
*) &post_sgl_pages
->header
.cfg_shdr
;
11304 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11305 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11306 if (rc
!= MBX_TIMEOUT
)
11307 mempool_free(mbox
, phba
->mbox_mem_pool
);
11308 if (shdr_status
|| shdr_add_status
|| rc
) {
11309 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11310 "2511 POST_SGL mailbox failed with "
11311 "status x%x add_status x%x, mbx status x%x\n",
11312 shdr_status
, shdr_add_status
, rc
);
11319 * lpfc_sli4_next_xritag - Get an xritag for the io
11320 * @phba: Pointer to HBA context object.
11322 * This function gets an xritag for the iocb. If there is no unused xritag
11323 * it will return 0xffff.
11324 * The function returns the allocated xritag if successful, else returns zero.
11325 * Zero is not a valid xritag.
11326 * The caller is not required to hold any lock.
11329 lpfc_sli4_next_xritag(struct lpfc_hba
*phba
)
11333 spin_lock_irq(&phba
->hbalock
);
11334 xritag
= phba
->sli4_hba
.next_xri
;
11335 if ((xritag
!= (uint16_t) -1) && xritag
<
11336 (phba
->sli4_hba
.max_cfg_param
.max_xri
11337 + phba
->sli4_hba
.max_cfg_param
.xri_base
)) {
11338 phba
->sli4_hba
.next_xri
++;
11339 phba
->sli4_hba
.max_cfg_param
.xri_used
++;
11340 spin_unlock_irq(&phba
->hbalock
);
11343 spin_unlock_irq(&phba
->hbalock
);
11344 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
11345 "2004 Failed to allocate XRI.last XRITAG is %d"
11346 " Max XRI is %d, Used XRI is %d\n",
11347 phba
->sli4_hba
.next_xri
,
11348 phba
->sli4_hba
.max_cfg_param
.max_xri
,
11349 phba
->sli4_hba
.max_cfg_param
.xri_used
);
11354 * lpfc_sli4_post_sgl_list - post a block of sgl list to the firmware.
11355 * @phba: pointer to lpfc hba data structure.
11357 * This routine is invoked to post a block of driver's sgl pages to the
11358 * HBA using non-embedded mailbox command. No Lock is held. This routine
11359 * is only called when the driver is loading and after all IO has been
11363 lpfc_sli4_post_sgl_list(struct lpfc_hba
*phba
)
11365 struct lpfc_sglq
*sglq_entry
;
11366 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
11367 struct sgl_page_pairs
*sgl_pg_pairs
;
11369 LPFC_MBOXQ_t
*mbox
;
11370 uint32_t reqlen
, alloclen
, pg_pairs
;
11372 uint16_t xritag_start
= 0;
11373 int els_xri_cnt
, rc
= 0;
11374 uint32_t shdr_status
, shdr_add_status
;
11375 union lpfc_sli4_cfg_shdr
*shdr
;
11377 /* The number of sgls to be posted */
11378 els_xri_cnt
= lpfc_sli4_get_els_iocb_cnt(phba
);
11380 reqlen
= els_xri_cnt
* sizeof(struct sgl_page_pairs
) +
11381 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
11382 if (reqlen
> SLI4_PAGE_SIZE
) {
11383 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
11384 "2559 Block sgl registration required DMA "
11385 "size (%d) great than a page\n", reqlen
);
11388 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11390 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11391 "2560 Failed to allocate mbox cmd memory\n");
11395 /* Allocate DMA memory and set up the non-embedded mailbox command */
11396 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11397 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
11398 LPFC_SLI4_MBX_NEMBED
);
11400 if (alloclen
< reqlen
) {
11401 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11402 "0285 Allocated DMA memory size (%d) is "
11403 "less than the requested DMA memory "
11404 "size (%d)\n", alloclen
, reqlen
);
11405 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11408 /* Get the first SGE entry from the non-embedded DMA memory */
11409 viraddr
= mbox
->sge_array
->addr
[0];
11411 /* Set up the SGL pages in the non-embedded DMA pages */
11412 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
11413 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
11415 for (pg_pairs
= 0; pg_pairs
< els_xri_cnt
; pg_pairs
++) {
11416 sglq_entry
= phba
->sli4_hba
.lpfc_els_sgl_array
[pg_pairs
];
11417 /* Set up the sge entry */
11418 sgl_pg_pairs
->sgl_pg0_addr_lo
=
11419 cpu_to_le32(putPaddrLow(sglq_entry
->phys
));
11420 sgl_pg_pairs
->sgl_pg0_addr_hi
=
11421 cpu_to_le32(putPaddrHigh(sglq_entry
->phys
));
11422 sgl_pg_pairs
->sgl_pg1_addr_lo
=
11423 cpu_to_le32(putPaddrLow(0));
11424 sgl_pg_pairs
->sgl_pg1_addr_hi
=
11425 cpu_to_le32(putPaddrHigh(0));
11426 /* Keep the first xritag on the list */
11428 xritag_start
= sglq_entry
->sli4_xritag
;
11431 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
11432 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, els_xri_cnt
);
11433 /* Perform endian conversion if necessary */
11434 sgl
->word0
= cpu_to_le32(sgl
->word0
);
11436 if (!phba
->sli4_hba
.intr_enable
)
11437 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11439 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11440 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
11442 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
11443 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11444 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11445 if (rc
!= MBX_TIMEOUT
)
11446 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11447 if (shdr_status
|| shdr_add_status
|| rc
) {
11448 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11449 "2513 POST_SGL_BLOCK mailbox command failed "
11450 "status x%x add_status x%x mbx status x%x\n",
11451 shdr_status
, shdr_add_status
, rc
);
11458 * lpfc_sli4_post_scsi_sgl_block - post a block of scsi sgl list to firmware
11459 * @phba: pointer to lpfc hba data structure.
11460 * @sblist: pointer to scsi buffer list.
11461 * @count: number of scsi buffers on the list.
11463 * This routine is invoked to post a block of @count scsi sgl pages from a
11464 * SCSI buffer list @sblist to the HBA using non-embedded mailbox command.
11469 lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba
*phba
, struct list_head
*sblist
,
11472 struct lpfc_scsi_buf
*psb
;
11473 struct lpfc_mbx_post_uembed_sgl_page1
*sgl
;
11474 struct sgl_page_pairs
*sgl_pg_pairs
;
11476 LPFC_MBOXQ_t
*mbox
;
11477 uint32_t reqlen
, alloclen
, pg_pairs
;
11479 uint16_t xritag_start
= 0;
11481 uint32_t shdr_status
, shdr_add_status
;
11482 dma_addr_t pdma_phys_bpl1
;
11483 union lpfc_sli4_cfg_shdr
*shdr
;
11485 /* Calculate the requested length of the dma memory */
11486 reqlen
= cnt
* sizeof(struct sgl_page_pairs
) +
11487 sizeof(union lpfc_sli4_cfg_shdr
) + sizeof(uint32_t);
11488 if (reqlen
> SLI4_PAGE_SIZE
) {
11489 lpfc_printf_log(phba
, KERN_WARNING
, LOG_INIT
,
11490 "0217 Block sgl registration required DMA "
11491 "size (%d) great than a page\n", reqlen
);
11494 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
11496 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11497 "0283 Failed to allocate mbox cmd memory\n");
11501 /* Allocate DMA memory and set up the non-embedded mailbox command */
11502 alloclen
= lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
11503 LPFC_MBOX_OPCODE_FCOE_POST_SGL_PAGES
, reqlen
,
11504 LPFC_SLI4_MBX_NEMBED
);
11506 if (alloclen
< reqlen
) {
11507 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
11508 "2561 Allocated DMA memory size (%d) is "
11509 "less than the requested DMA memory "
11510 "size (%d)\n", alloclen
, reqlen
);
11511 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11514 /* Get the first SGE entry from the non-embedded DMA memory */
11515 viraddr
= mbox
->sge_array
->addr
[0];
11517 /* Set up the SGL pages in the non-embedded DMA pages */
11518 sgl
= (struct lpfc_mbx_post_uembed_sgl_page1
*)viraddr
;
11519 sgl_pg_pairs
= &sgl
->sgl_pg_pairs
;
11522 list_for_each_entry(psb
, sblist
, list
) {
11523 /* Set up the sge entry */
11524 sgl_pg_pairs
->sgl_pg0_addr_lo
=
11525 cpu_to_le32(putPaddrLow(psb
->dma_phys_bpl
));
11526 sgl_pg_pairs
->sgl_pg0_addr_hi
=
11527 cpu_to_le32(putPaddrHigh(psb
->dma_phys_bpl
));
11528 if (phba
->cfg_sg_dma_buf_size
> SGL_PAGE_SIZE
)
11529 pdma_phys_bpl1
= psb
->dma_phys_bpl
+ SGL_PAGE_SIZE
;
11531 pdma_phys_bpl1
= 0;
11532 sgl_pg_pairs
->sgl_pg1_addr_lo
=
11533 cpu_to_le32(putPaddrLow(pdma_phys_bpl1
));
11534 sgl_pg_pairs
->sgl_pg1_addr_hi
=
11535 cpu_to_le32(putPaddrHigh(pdma_phys_bpl1
));
11536 /* Keep the first xritag on the list */
11538 xritag_start
= psb
->cur_iocbq
.sli4_xritag
;
11542 bf_set(lpfc_post_sgl_pages_xri
, sgl
, xritag_start
);
11543 bf_set(lpfc_post_sgl_pages_xricnt
, sgl
, pg_pairs
);
11544 /* Perform endian conversion if necessary */
11545 sgl
->word0
= cpu_to_le32(sgl
->word0
);
11547 if (!phba
->sli4_hba
.intr_enable
)
11548 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_POLL
);
11550 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
11551 rc
= lpfc_sli_issue_mbox_wait(phba
, mbox
, mbox_tmo
);
11553 shdr
= (union lpfc_sli4_cfg_shdr
*) &sgl
->cfg_shdr
;
11554 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
11555 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
11556 if (rc
!= MBX_TIMEOUT
)
11557 lpfc_sli4_mbox_cmd_free(phba
, mbox
);
11558 if (shdr_status
|| shdr_add_status
|| rc
) {
11559 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
11560 "2564 POST_SGL_BLOCK mailbox command failed "
11561 "status x%x add_status x%x mbx status x%x\n",
11562 shdr_status
, shdr_add_status
, rc
);
11569 * lpfc_fc_frame_check - Check that this frame is a valid frame to handle
11570 * @phba: pointer to lpfc_hba struct that the frame was received on
11571 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11573 * This function checks the fields in the @fc_hdr to see if the FC frame is a
11574 * valid type of frame that the LPFC driver will handle. This function will
11575 * return a zero if the frame is a valid frame or a non zero value when the
11576 * frame does not pass the check.
11579 lpfc_fc_frame_check(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
)
11581 /* make rctl_names static to save stack space */
11582 static char *rctl_names
[] = FC_RCTL_NAMES_INIT
;
11583 char *type_names
[] = FC_TYPE_NAMES_INIT
;
11584 struct fc_vft_header
*fc_vft_hdr
;
11586 switch (fc_hdr
->fh_r_ctl
) {
11587 case FC_RCTL_DD_UNCAT
: /* uncategorized information */
11588 case FC_RCTL_DD_SOL_DATA
: /* solicited data */
11589 case FC_RCTL_DD_UNSOL_CTL
: /* unsolicited control */
11590 case FC_RCTL_DD_SOL_CTL
: /* solicited control or reply */
11591 case FC_RCTL_DD_UNSOL_DATA
: /* unsolicited data */
11592 case FC_RCTL_DD_DATA_DESC
: /* data descriptor */
11593 case FC_RCTL_DD_UNSOL_CMD
: /* unsolicited command */
11594 case FC_RCTL_DD_CMD_STATUS
: /* command status */
11595 case FC_RCTL_ELS_REQ
: /* extended link services request */
11596 case FC_RCTL_ELS_REP
: /* extended link services reply */
11597 case FC_RCTL_ELS4_REQ
: /* FC-4 ELS request */
11598 case FC_RCTL_ELS4_REP
: /* FC-4 ELS reply */
11599 case FC_RCTL_BA_NOP
: /* basic link service NOP */
11600 case FC_RCTL_BA_ABTS
: /* basic link service abort */
11601 case FC_RCTL_BA_RMC
: /* remove connection */
11602 case FC_RCTL_BA_ACC
: /* basic accept */
11603 case FC_RCTL_BA_RJT
: /* basic reject */
11604 case FC_RCTL_BA_PRMT
:
11605 case FC_RCTL_ACK_1
: /* acknowledge_1 */
11606 case FC_RCTL_ACK_0
: /* acknowledge_0 */
11607 case FC_RCTL_P_RJT
: /* port reject */
11608 case FC_RCTL_F_RJT
: /* fabric reject */
11609 case FC_RCTL_P_BSY
: /* port busy */
11610 case FC_RCTL_F_BSY
: /* fabric busy to data frame */
11611 case FC_RCTL_F_BSYL
: /* fabric busy to link control frame */
11612 case FC_RCTL_LCR
: /* link credit reset */
11613 case FC_RCTL_END
: /* end */
11615 case FC_RCTL_VFTH
: /* Virtual Fabric tagging Header */
11616 fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11617 fc_hdr
= &((struct fc_frame_header
*)fc_vft_hdr
)[1];
11618 return lpfc_fc_frame_check(phba
, fc_hdr
);
11622 switch (fc_hdr
->fh_type
) {
11633 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
11634 "2538 Received frame rctl:%s type:%s\n",
11635 rctl_names
[fc_hdr
->fh_r_ctl
],
11636 type_names
[fc_hdr
->fh_type
]);
11639 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11640 "2539 Dropped frame rctl:%s type:%s\n",
11641 rctl_names
[fc_hdr
->fh_r_ctl
],
11642 type_names
[fc_hdr
->fh_type
]);
11647 * lpfc_fc_hdr_get_vfi - Get the VFI from an FC frame
11648 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11650 * This function processes the FC header to retrieve the VFI from the VF
11651 * header, if one exists. This function will return the VFI if one exists
11652 * or 0 if no VSAN Header exists.
11655 lpfc_fc_hdr_get_vfi(struct fc_frame_header
*fc_hdr
)
11657 struct fc_vft_header
*fc_vft_hdr
= (struct fc_vft_header
*)fc_hdr
;
11659 if (fc_hdr
->fh_r_ctl
!= FC_RCTL_VFTH
)
11661 return bf_get(fc_vft_hdr_vf_id
, fc_vft_hdr
);
11665 * lpfc_fc_frame_to_vport - Finds the vport that a frame is destined to
11666 * @phba: Pointer to the HBA structure to search for the vport on
11667 * @fc_hdr: A pointer to the FC Header data (In Big Endian Format)
11668 * @fcfi: The FC Fabric ID that the frame came from
11670 * This function searches the @phba for a vport that matches the content of the
11671 * @fc_hdr passed in and the @fcfi. This function uses the @fc_hdr to fetch the
11672 * VFI, if the Virtual Fabric Tagging Header exists, and the DID. This function
11673 * returns the matching vport pointer or NULL if unable to match frame to a
11676 static struct lpfc_vport
*
11677 lpfc_fc_frame_to_vport(struct lpfc_hba
*phba
, struct fc_frame_header
*fc_hdr
,
11680 struct lpfc_vport
**vports
;
11681 struct lpfc_vport
*vport
= NULL
;
11683 uint32_t did
= (fc_hdr
->fh_d_id
[0] << 16 |
11684 fc_hdr
->fh_d_id
[1] << 8 |
11685 fc_hdr
->fh_d_id
[2]);
11687 vports
= lpfc_create_vport_work_array(phba
);
11688 if (vports
!= NULL
)
11689 for (i
= 0; i
<= phba
->max_vpi
&& vports
[i
] != NULL
; i
++) {
11690 if (phba
->fcf
.fcfi
== fcfi
&&
11691 vports
[i
]->vfi
== lpfc_fc_hdr_get_vfi(fc_hdr
) &&
11692 vports
[i
]->fc_myDID
== did
) {
11697 lpfc_destroy_vport_work_array(phba
, vports
);
11702 * lpfc_update_rcv_time_stamp - Update vport's rcv seq time stamp
11703 * @vport: The vport to work on.
11705 * This function updates the receive sequence time stamp for this vport. The
11706 * receive sequence time stamp indicates the time that the last frame of the
11707 * the sequence that has been idle for the longest amount of time was received.
11708 * the driver uses this time stamp to indicate if any received sequences have
11712 lpfc_update_rcv_time_stamp(struct lpfc_vport
*vport
)
11714 struct lpfc_dmabuf
*h_buf
;
11715 struct hbq_dmabuf
*dmabuf
= NULL
;
11717 /* get the oldest sequence on the rcv list */
11718 h_buf
= list_get_first(&vport
->rcv_buffer_list
,
11719 struct lpfc_dmabuf
, list
);
11722 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11723 vport
->rcv_buffer_time_stamp
= dmabuf
->time_stamp
;
11727 * lpfc_cleanup_rcv_buffers - Cleans up all outstanding receive sequences.
11728 * @vport: The vport that the received sequences were sent to.
11730 * This function cleans up all outstanding received sequences. This is called
11731 * by the driver when a link event or user action invalidates all the received
11735 lpfc_cleanup_rcv_buffers(struct lpfc_vport
*vport
)
11737 struct lpfc_dmabuf
*h_buf
, *hnext
;
11738 struct lpfc_dmabuf
*d_buf
, *dnext
;
11739 struct hbq_dmabuf
*dmabuf
= NULL
;
11741 /* start with the oldest sequence on the rcv list */
11742 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11743 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11744 list_del_init(&dmabuf
->hbuf
.list
);
11745 list_for_each_entry_safe(d_buf
, dnext
,
11746 &dmabuf
->dbuf
.list
, list
) {
11747 list_del_init(&d_buf
->list
);
11748 lpfc_in_buf_free(vport
->phba
, d_buf
);
11750 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11755 * lpfc_rcv_seq_check_edtov - Cleans up timed out receive sequences.
11756 * @vport: The vport that the received sequences were sent to.
11758 * This function determines whether any received sequences have timed out by
11759 * first checking the vport's rcv_buffer_time_stamp. If this time_stamp
11760 * indicates that there is at least one timed out sequence this routine will
11761 * go through the received sequences one at a time from most inactive to most
11762 * active to determine which ones need to be cleaned up. Once it has determined
11763 * that a sequence needs to be cleaned up it will simply free up the resources
11764 * without sending an abort.
11767 lpfc_rcv_seq_check_edtov(struct lpfc_vport
*vport
)
11769 struct lpfc_dmabuf
*h_buf
, *hnext
;
11770 struct lpfc_dmabuf
*d_buf
, *dnext
;
11771 struct hbq_dmabuf
*dmabuf
= NULL
;
11772 unsigned long timeout
;
11773 int abort_count
= 0;
11775 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11776 vport
->rcv_buffer_time_stamp
);
11777 if (list_empty(&vport
->rcv_buffer_list
) ||
11778 time_before(jiffies
, timeout
))
11780 /* start with the oldest sequence on the rcv list */
11781 list_for_each_entry_safe(h_buf
, hnext
, &vport
->rcv_buffer_list
, list
) {
11782 dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11783 timeout
= (msecs_to_jiffies(vport
->phba
->fc_edtov
) +
11784 dmabuf
->time_stamp
);
11785 if (time_before(jiffies
, timeout
))
11788 list_del_init(&dmabuf
->hbuf
.list
);
11789 list_for_each_entry_safe(d_buf
, dnext
,
11790 &dmabuf
->dbuf
.list
, list
) {
11791 list_del_init(&d_buf
->list
);
11792 lpfc_in_buf_free(vport
->phba
, d_buf
);
11794 lpfc_in_buf_free(vport
->phba
, &dmabuf
->dbuf
);
11797 lpfc_update_rcv_time_stamp(vport
);
11801 * lpfc_fc_frame_add - Adds a frame to the vport's list of received sequences
11802 * @dmabuf: pointer to a dmabuf that describes the hdr and data of the FC frame
11804 * This function searches through the existing incomplete sequences that have
11805 * been sent to this @vport. If the frame matches one of the incomplete
11806 * sequences then the dbuf in the @dmabuf is added to the list of frames that
11807 * make up that sequence. If no sequence is found that matches this frame then
11808 * the function will add the hbuf in the @dmabuf to the @vport's rcv_buffer_list
11809 * This function returns a pointer to the first dmabuf in the sequence list that
11810 * the frame was linked to.
11812 static struct hbq_dmabuf
*
11813 lpfc_fc_frame_add(struct lpfc_vport
*vport
, struct hbq_dmabuf
*dmabuf
)
11815 struct fc_frame_header
*new_hdr
;
11816 struct fc_frame_header
*temp_hdr
;
11817 struct lpfc_dmabuf
*d_buf
;
11818 struct lpfc_dmabuf
*h_buf
;
11819 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11820 struct hbq_dmabuf
*temp_dmabuf
= NULL
;
11822 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11823 dmabuf
->time_stamp
= jiffies
;
11824 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11825 /* Use the hdr_buf to find the sequence that this frame belongs to */
11826 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11827 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11828 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11829 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11830 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11832 /* found a pending sequence that matches this frame */
11833 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11838 * This indicates first frame received for this sequence.
11839 * Queue the buffer on the vport's rcv_buffer_list.
11841 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11842 lpfc_update_rcv_time_stamp(vport
);
11845 temp_hdr
= seq_dmabuf
->hbuf
.virt
;
11846 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) <
11847 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11848 list_del_init(&seq_dmabuf
->hbuf
.list
);
11849 list_add_tail(&dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11850 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11851 lpfc_update_rcv_time_stamp(vport
);
11854 /* move this sequence to the tail to indicate a young sequence */
11855 list_move_tail(&seq_dmabuf
->hbuf
.list
, &vport
->rcv_buffer_list
);
11856 seq_dmabuf
->time_stamp
= jiffies
;
11857 lpfc_update_rcv_time_stamp(vport
);
11858 if (list_empty(&seq_dmabuf
->dbuf
.list
)) {
11859 temp_hdr
= dmabuf
->hbuf
.virt
;
11860 list_add_tail(&dmabuf
->dbuf
.list
, &seq_dmabuf
->dbuf
.list
);
11863 /* find the correct place in the sequence to insert this frame */
11864 list_for_each_entry_reverse(d_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
11865 temp_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
11866 temp_hdr
= (struct fc_frame_header
*)temp_dmabuf
->hbuf
.virt
;
11868 * If the frame's sequence count is greater than the frame on
11869 * the list then insert the frame right after this frame
11871 if (be16_to_cpu(new_hdr
->fh_seq_cnt
) >
11872 be16_to_cpu(temp_hdr
->fh_seq_cnt
)) {
11873 list_add(&dmabuf
->dbuf
.list
, &temp_dmabuf
->dbuf
.list
);
11881 * lpfc_sli4_abort_partial_seq - Abort partially assembled unsol sequence
11882 * @vport: pointer to a vitural port
11883 * @dmabuf: pointer to a dmabuf that describes the FC sequence
11885 * This function tries to abort from the partially assembed sequence, described
11886 * by the information from basic abbort @dmabuf. It checks to see whether such
11887 * partially assembled sequence held by the driver. If so, it shall free up all
11888 * the frames from the partially assembled sequence.
11891 * true -- if there is matching partially assembled sequence present and all
11892 * the frames freed with the sequence;
11893 * false -- if there is no matching partially assembled sequence present so
11894 * nothing got aborted in the lower layer driver
11897 lpfc_sli4_abort_partial_seq(struct lpfc_vport
*vport
,
11898 struct hbq_dmabuf
*dmabuf
)
11900 struct fc_frame_header
*new_hdr
;
11901 struct fc_frame_header
*temp_hdr
;
11902 struct lpfc_dmabuf
*d_buf
, *n_buf
, *h_buf
;
11903 struct hbq_dmabuf
*seq_dmabuf
= NULL
;
11905 /* Use the hdr_buf to find the sequence that matches this frame */
11906 INIT_LIST_HEAD(&dmabuf
->dbuf
.list
);
11907 INIT_LIST_HEAD(&dmabuf
->hbuf
.list
);
11908 new_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
11909 list_for_each_entry(h_buf
, &vport
->rcv_buffer_list
, list
) {
11910 temp_hdr
= (struct fc_frame_header
*)h_buf
->virt
;
11911 if ((temp_hdr
->fh_seq_id
!= new_hdr
->fh_seq_id
) ||
11912 (temp_hdr
->fh_ox_id
!= new_hdr
->fh_ox_id
) ||
11913 (memcmp(&temp_hdr
->fh_s_id
, &new_hdr
->fh_s_id
, 3)))
11915 /* found a pending sequence that matches this frame */
11916 seq_dmabuf
= container_of(h_buf
, struct hbq_dmabuf
, hbuf
);
11920 /* Free up all the frames from the partially assembled sequence */
11922 list_for_each_entry_safe(d_buf
, n_buf
,
11923 &seq_dmabuf
->dbuf
.list
, list
) {
11924 list_del_init(&d_buf
->list
);
11925 lpfc_in_buf_free(vport
->phba
, d_buf
);
11933 * lpfc_sli4_seq_abort_acc_cmpl - Accept seq abort iocb complete handler
11934 * @phba: Pointer to HBA context object.
11935 * @cmd_iocbq: pointer to the command iocbq structure.
11936 * @rsp_iocbq: pointer to the response iocbq structure.
11938 * This function handles the sequence abort accept iocb command complete
11939 * event. It properly releases the memory allocated to the sequence abort
11943 lpfc_sli4_seq_abort_acc_cmpl(struct lpfc_hba
*phba
,
11944 struct lpfc_iocbq
*cmd_iocbq
,
11945 struct lpfc_iocbq
*rsp_iocbq
)
11948 lpfc_sli_release_iocbq(phba
, cmd_iocbq
);
11952 * lpfc_sli4_seq_abort_acc - Accept sequence abort
11953 * @phba: Pointer to HBA context object.
11954 * @fc_hdr: pointer to a FC frame header.
11956 * This function sends a basic accept to a previous unsol sequence abort
11957 * event after aborting the sequence handling.
11960 lpfc_sli4_seq_abort_acc(struct lpfc_hba
*phba
,
11961 struct fc_frame_header
*fc_hdr
)
11963 struct lpfc_iocbq
*ctiocb
= NULL
;
11964 struct lpfc_nodelist
*ndlp
;
11965 uint16_t oxid
, rxid
;
11966 uint32_t sid
, fctl
;
11969 if (!lpfc_is_link_up(phba
))
11972 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
11973 oxid
= be16_to_cpu(fc_hdr
->fh_ox_id
);
11974 rxid
= be16_to_cpu(fc_hdr
->fh_rx_id
);
11976 ndlp
= lpfc_findnode_did(phba
->pport
, sid
);
11978 lpfc_printf_log(phba
, KERN_WARNING
, LOG_ELS
,
11979 "1268 Find ndlp returned NULL for oxid:x%x "
11980 "SID:x%x\n", oxid
, sid
);
11983 if (rxid
>= phba
->sli4_hba
.max_cfg_param
.xri_base
11984 && rxid
<= (phba
->sli4_hba
.max_cfg_param
.max_xri
11985 + phba
->sli4_hba
.max_cfg_param
.xri_base
))
11986 lpfc_set_rrq_active(phba
, ndlp
, rxid
, oxid
, 0);
11988 /* Allocate buffer for acc iocb */
11989 ctiocb
= lpfc_sli_get_iocbq(phba
);
11993 /* Extract the F_CTL field from FC_HDR */
11994 fctl
= sli4_fctl_from_fc_hdr(fc_hdr
);
11996 icmd
= &ctiocb
->iocb
;
11997 icmd
->un
.xseq64
.bdl
.bdeSize
= 0;
11998 icmd
->un
.xseq64
.bdl
.ulpIoTag32
= 0;
11999 icmd
->un
.xseq64
.w5
.hcsw
.Dfctl
= 0;
12000 icmd
->un
.xseq64
.w5
.hcsw
.Rctl
= FC_RCTL_BA_ACC
;
12001 icmd
->un
.xseq64
.w5
.hcsw
.Type
= FC_TYPE_BLS
;
12003 /* Fill in the rest of iocb fields */
12004 icmd
->ulpCommand
= CMD_XMIT_BLS_RSP64_CX
;
12005 icmd
->ulpBdeCount
= 0;
12007 icmd
->ulpClass
= CLASS3
;
12008 icmd
->ulpContext
= ndlp
->nlp_rpi
;
12009 ctiocb
->context1
= ndlp
;
12011 ctiocb
->iocb_cmpl
= NULL
;
12012 ctiocb
->vport
= phba
->pport
;
12013 ctiocb
->iocb_cmpl
= lpfc_sli4_seq_abort_acc_cmpl
;
12015 if (fctl
& FC_FC_EX_CTX
) {
12016 /* ABTS sent by responder to CT exchange, construction
12017 * of BA_ACC will use OX_ID from ABTS for the XRI_TAG
12018 * field and RX_ID from ABTS for RX_ID field.
12020 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_RSP
);
12021 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, rxid
);
12022 ctiocb
->sli4_xritag
= oxid
;
12024 /* ABTS sent by initiator to CT exchange, construction
12025 * of BA_ACC will need to allocate a new XRI as for the
12026 * XRI_TAG and RX_ID fields.
12028 bf_set(lpfc_abts_orig
, &icmd
->un
.bls_acc
, LPFC_ABTS_UNSOL_INT
);
12029 bf_set(lpfc_abts_rxid
, &icmd
->un
.bls_acc
, NO_XRI
);
12030 ctiocb
->sli4_xritag
= NO_XRI
;
12032 bf_set(lpfc_abts_oxid
, &icmd
->un
.bls_acc
, oxid
);
12034 /* Xmit CT abts accept on exchange <xid> */
12035 lpfc_printf_log(phba
, KERN_INFO
, LOG_ELS
,
12036 "1200 Xmit CT ABTS ACC on exchange x%x Data: x%x\n",
12037 CMD_XMIT_BLS_RSP64_CX
, phba
->link_state
);
12038 lpfc_sli_issue_iocb(phba
, LPFC_ELS_RING
, ctiocb
, 0);
12042 * lpfc_sli4_handle_unsol_abort - Handle sli-4 unsolicited abort event
12043 * @vport: Pointer to the vport on which this sequence was received
12044 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12046 * This function handles an SLI-4 unsolicited abort event. If the unsolicited
12047 * receive sequence is only partially assembed by the driver, it shall abort
12048 * the partially assembled frames for the sequence. Otherwise, if the
12049 * unsolicited receive sequence has been completely assembled and passed to
12050 * the Upper Layer Protocol (UPL), it then mark the per oxid status for the
12051 * unsolicited sequence has been aborted. After that, it will issue a basic
12052 * accept to accept the abort.
12055 lpfc_sli4_handle_unsol_abort(struct lpfc_vport
*vport
,
12056 struct hbq_dmabuf
*dmabuf
)
12058 struct lpfc_hba
*phba
= vport
->phba
;
12059 struct fc_frame_header fc_hdr
;
12063 /* Make a copy of fc_hdr before the dmabuf being released */
12064 memcpy(&fc_hdr
, dmabuf
->hbuf
.virt
, sizeof(struct fc_frame_header
));
12065 fctl
= sli4_fctl_from_fc_hdr(&fc_hdr
);
12067 if (fctl
& FC_FC_EX_CTX
) {
12069 * ABTS sent by responder to exchange, just free the buffer
12071 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12074 * ABTS sent by initiator to exchange, need to do cleanup
12076 /* Try to abort partially assembled seq */
12077 abts_par
= lpfc_sli4_abort_partial_seq(vport
, dmabuf
);
12079 /* Send abort to ULP if partially seq abort failed */
12080 if (abts_par
== false)
12081 lpfc_sli4_send_seq_to_ulp(vport
, dmabuf
);
12083 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12085 /* Send basic accept (BA_ACC) to the abort requester */
12086 lpfc_sli4_seq_abort_acc(phba
, &fc_hdr
);
12090 * lpfc_seq_complete - Indicates if a sequence is complete
12091 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12093 * This function checks the sequence, starting with the frame described by
12094 * @dmabuf, to see if all the frames associated with this sequence are present.
12095 * the frames associated with this sequence are linked to the @dmabuf using the
12096 * dbuf list. This function looks for two major things. 1) That the first frame
12097 * has a sequence count of zero. 2) There is a frame with last frame of sequence
12098 * set. 3) That there are no holes in the sequence count. The function will
12099 * return 1 when the sequence is complete, otherwise it will return 0.
12102 lpfc_seq_complete(struct hbq_dmabuf
*dmabuf
)
12104 struct fc_frame_header
*hdr
;
12105 struct lpfc_dmabuf
*d_buf
;
12106 struct hbq_dmabuf
*seq_dmabuf
;
12110 hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
12111 /* make sure first fame of sequence has a sequence count of zero */
12112 if (hdr
->fh_seq_cnt
!= seq_count
)
12114 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
12115 hdr
->fh_f_ctl
[1] << 8 |
12117 /* If last frame of sequence we can return success. */
12118 if (fctl
& FC_FC_END_SEQ
)
12120 list_for_each_entry(d_buf
, &dmabuf
->dbuf
.list
, list
) {
12121 seq_dmabuf
= container_of(d_buf
, struct hbq_dmabuf
, dbuf
);
12122 hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12123 /* If there is a hole in the sequence count then fail. */
12124 if (++seq_count
!= be16_to_cpu(hdr
->fh_seq_cnt
))
12126 fctl
= (hdr
->fh_f_ctl
[0] << 16 |
12127 hdr
->fh_f_ctl
[1] << 8 |
12129 /* If last frame of sequence we can return success. */
12130 if (fctl
& FC_FC_END_SEQ
)
12137 * lpfc_prep_seq - Prep sequence for ULP processing
12138 * @vport: Pointer to the vport on which this sequence was received
12139 * @dmabuf: pointer to a dmabuf that describes the FC sequence
12141 * This function takes a sequence, described by a list of frames, and creates
12142 * a list of iocbq structures to describe the sequence. This iocbq list will be
12143 * used to issue to the generic unsolicited sequence handler. This routine
12144 * returns a pointer to the first iocbq in the list. If the function is unable
12145 * to allocate an iocbq then it throw out the received frames that were not
12146 * able to be described and return a pointer to the first iocbq. If unable to
12147 * allocate any iocbqs (including the first) this function will return NULL.
12149 static struct lpfc_iocbq
*
12150 lpfc_prep_seq(struct lpfc_vport
*vport
, struct hbq_dmabuf
*seq_dmabuf
)
12152 struct lpfc_dmabuf
*d_buf
, *n_buf
;
12153 struct lpfc_iocbq
*first_iocbq
, *iocbq
;
12154 struct fc_frame_header
*fc_hdr
;
12156 struct ulp_bde64
*pbde
;
12158 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12159 /* remove from receive buffer list */
12160 list_del_init(&seq_dmabuf
->hbuf
.list
);
12161 lpfc_update_rcv_time_stamp(vport
);
12162 /* get the Remote Port's SID */
12163 sid
= sli4_sid_from_fc_hdr(fc_hdr
);
12164 /* Get an iocbq struct to fill in. */
12165 first_iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
12167 /* Initialize the first IOCB. */
12168 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
= 0;
12169 first_iocbq
->iocb
.ulpStatus
= IOSTAT_SUCCESS
;
12170 first_iocbq
->iocb
.ulpCommand
= CMD_IOCB_RCV_SEQ64_CX
;
12171 first_iocbq
->iocb
.ulpContext
= be16_to_cpu(fc_hdr
->fh_ox_id
);
12172 first_iocbq
->iocb
.unsli3
.rcvsli3
.vpi
=
12173 vport
->vpi
+ vport
->phba
->vpi_base
;
12174 /* put the first buffer into the first IOCBq */
12175 first_iocbq
->context2
= &seq_dmabuf
->dbuf
;
12176 first_iocbq
->context3
= NULL
;
12177 first_iocbq
->iocb
.ulpBdeCount
= 1;
12178 first_iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
12179 LPFC_DATA_BUF_SIZE
;
12180 first_iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
12181 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12182 bf_get(lpfc_rcqe_length
,
12183 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12185 iocbq
= first_iocbq
;
12187 * Each IOCBq can have two Buffers assigned, so go through the list
12188 * of buffers for this sequence and save two buffers in each IOCBq
12190 list_for_each_entry_safe(d_buf
, n_buf
, &seq_dmabuf
->dbuf
.list
, list
) {
12192 lpfc_in_buf_free(vport
->phba
, d_buf
);
12195 if (!iocbq
->context3
) {
12196 iocbq
->context3
= d_buf
;
12197 iocbq
->iocb
.ulpBdeCount
++;
12198 pbde
= (struct ulp_bde64
*)
12199 &iocbq
->iocb
.unsli3
.sli3Words
[4];
12200 pbde
->tus
.f
.bdeSize
= LPFC_DATA_BUF_SIZE
;
12201 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12202 bf_get(lpfc_rcqe_length
,
12203 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12205 iocbq
= lpfc_sli_get_iocbq(vport
->phba
);
12208 first_iocbq
->iocb
.ulpStatus
=
12209 IOSTAT_FCP_RSP_ERROR
;
12210 first_iocbq
->iocb
.un
.ulpWord
[4] =
12211 IOERR_NO_RESOURCES
;
12213 lpfc_in_buf_free(vport
->phba
, d_buf
);
12216 iocbq
->context2
= d_buf
;
12217 iocbq
->context3
= NULL
;
12218 iocbq
->iocb
.ulpBdeCount
= 1;
12219 iocbq
->iocb
.un
.cont64
[0].tus
.f
.bdeSize
=
12220 LPFC_DATA_BUF_SIZE
;
12221 first_iocbq
->iocb
.unsli3
.rcvsli3
.acc_len
+=
12222 bf_get(lpfc_rcqe_length
,
12223 &seq_dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12224 iocbq
->iocb
.un
.rcvels
.remoteID
= sid
;
12225 list_add_tail(&iocbq
->list
, &first_iocbq
->list
);
12228 return first_iocbq
;
12232 lpfc_sli4_send_seq_to_ulp(struct lpfc_vport
*vport
,
12233 struct hbq_dmabuf
*seq_dmabuf
)
12235 struct fc_frame_header
*fc_hdr
;
12236 struct lpfc_iocbq
*iocbq
, *curr_iocb
, *next_iocb
;
12237 struct lpfc_hba
*phba
= vport
->phba
;
12239 fc_hdr
= (struct fc_frame_header
*)seq_dmabuf
->hbuf
.virt
;
12240 iocbq
= lpfc_prep_seq(vport
, seq_dmabuf
);
12242 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12243 "2707 Ring %d handler: Failed to allocate "
12244 "iocb Rctl x%x Type x%x received\n",
12246 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
12249 if (!lpfc_complete_unsol_iocb(phba
,
12250 &phba
->sli
.ring
[LPFC_ELS_RING
],
12251 iocbq
, fc_hdr
->fh_r_ctl
,
12253 lpfc_printf_log(phba
, KERN_WARNING
, LOG_SLI
,
12254 "2540 Ring %d handler: unexpected Rctl "
12255 "x%x Type x%x received\n",
12257 fc_hdr
->fh_r_ctl
, fc_hdr
->fh_type
);
12259 /* Free iocb created in lpfc_prep_seq */
12260 list_for_each_entry_safe(curr_iocb
, next_iocb
,
12261 &iocbq
->list
, list
) {
12262 list_del_init(&curr_iocb
->list
);
12263 lpfc_sli_release_iocbq(phba
, curr_iocb
);
12265 lpfc_sli_release_iocbq(phba
, iocbq
);
12269 * lpfc_sli4_handle_received_buffer - Handle received buffers from firmware
12270 * @phba: Pointer to HBA context object.
12272 * This function is called with no lock held. This function processes all
12273 * the received buffers and gives it to upper layers when a received buffer
12274 * indicates that it is the final frame in the sequence. The interrupt
12275 * service routine processes received buffers at interrupt contexts and adds
12276 * received dma buffers to the rb_pend_list queue and signals the worker thread.
12277 * Worker thread calls lpfc_sli4_handle_received_buffer, which will call the
12278 * appropriate receive function when the final frame in a sequence is received.
12281 lpfc_sli4_handle_received_buffer(struct lpfc_hba
*phba
,
12282 struct hbq_dmabuf
*dmabuf
)
12284 struct hbq_dmabuf
*seq_dmabuf
;
12285 struct fc_frame_header
*fc_hdr
;
12286 struct lpfc_vport
*vport
;
12289 /* Process each received buffer */
12290 fc_hdr
= (struct fc_frame_header
*)dmabuf
->hbuf
.virt
;
12291 /* check to see if this a valid type of frame */
12292 if (lpfc_fc_frame_check(phba
, fc_hdr
)) {
12293 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12296 fcfi
= bf_get(lpfc_rcqe_fcf_id
, &dmabuf
->cq_event
.cqe
.rcqe_cmpl
);
12297 vport
= lpfc_fc_frame_to_vport(phba
, fc_hdr
, fcfi
);
12298 if (!vport
|| !(vport
->vpi_state
& LPFC_VPI_REGISTERED
)) {
12299 /* throw out the frame */
12300 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12303 /* Handle the basic abort sequence (BA_ABTS) event */
12304 if (fc_hdr
->fh_r_ctl
== FC_RCTL_BA_ABTS
) {
12305 lpfc_sli4_handle_unsol_abort(vport
, dmabuf
);
12309 /* Link this frame */
12310 seq_dmabuf
= lpfc_fc_frame_add(vport
, dmabuf
);
12312 /* unable to add frame to vport - throw it out */
12313 lpfc_in_buf_free(phba
, &dmabuf
->dbuf
);
12316 /* If not last frame in sequence continue processing frames. */
12317 if (!lpfc_seq_complete(seq_dmabuf
))
12320 /* Send the complete sequence to the upper layer protocol */
12321 lpfc_sli4_send_seq_to_ulp(vport
, seq_dmabuf
);
12325 * lpfc_sli4_post_all_rpi_hdrs - Post the rpi header memory region to the port
12326 * @phba: pointer to lpfc hba data structure.
12328 * This routine is invoked to post rpi header templates to the
12329 * HBA consistent with the SLI-4 interface spec. This routine
12330 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12331 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
12333 * This routine does not require any locks. It's usage is expected
12334 * to be driver load or reset recovery when the driver is
12339 * -EIO - The mailbox failed to complete successfully.
12340 * When this error occurs, the driver is not guaranteed
12341 * to have any rpi regions posted to the device and
12342 * must either attempt to repost the regions or take a
12346 lpfc_sli4_post_all_rpi_hdrs(struct lpfc_hba
*phba
)
12348 struct lpfc_rpi_hdr
*rpi_page
;
12351 /* Post all rpi memory regions to the port. */
12352 list_for_each_entry(rpi_page
, &phba
->sli4_hba
.lpfc_rpi_hdr_list
, list
) {
12353 rc
= lpfc_sli4_post_rpi_hdr(phba
, rpi_page
);
12354 if (rc
!= MBX_SUCCESS
) {
12355 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12356 "2008 Error %d posting all rpi "
12367 * lpfc_sli4_post_rpi_hdr - Post an rpi header memory region to the port
12368 * @phba: pointer to lpfc hba data structure.
12369 * @rpi_page: pointer to the rpi memory region.
12371 * This routine is invoked to post a single rpi header to the
12372 * HBA consistent with the SLI-4 interface spec. This memory region
12373 * maps up to 64 rpi context regions.
12377 * -ENOMEM - No available memory
12378 * -EIO - The mailbox failed to complete successfully.
12381 lpfc_sli4_post_rpi_hdr(struct lpfc_hba
*phba
, struct lpfc_rpi_hdr
*rpi_page
)
12383 LPFC_MBOXQ_t
*mboxq
;
12384 struct lpfc_mbx_post_hdr_tmpl
*hdr_tmpl
;
12387 uint32_t shdr_status
, shdr_add_status
;
12388 union lpfc_sli4_cfg_shdr
*shdr
;
12390 /* The port is notified of the header region via a mailbox command. */
12391 mboxq
= (LPFC_MBOXQ_t
*) mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12393 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12394 "2001 Unable to allocate memory for issuing "
12395 "SLI_CONFIG_SPECIAL mailbox command\n");
12399 /* Post all rpi memory regions to the port. */
12400 hdr_tmpl
= &mboxq
->u
.mqe
.un
.hdr_tmpl
;
12401 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_SLI4_CONFIG
);
12402 lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12403 LPFC_MBOX_OPCODE_FCOE_POST_HDR_TEMPLATE
,
12404 sizeof(struct lpfc_mbx_post_hdr_tmpl
) -
12405 sizeof(struct mbox_header
), LPFC_SLI4_MBX_EMBED
);
12406 bf_set(lpfc_mbx_post_hdr_tmpl_page_cnt
,
12407 hdr_tmpl
, rpi_page
->page_count
);
12408 bf_set(lpfc_mbx_post_hdr_tmpl_rpi_offset
, hdr_tmpl
,
12409 rpi_page
->start_rpi
);
12410 hdr_tmpl
->rpi_paddr_lo
= putPaddrLow(rpi_page
->dmabuf
->phys
);
12411 hdr_tmpl
->rpi_paddr_hi
= putPaddrHigh(rpi_page
->dmabuf
->phys
);
12412 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_POLL
);
12413 shdr
= (union lpfc_sli4_cfg_shdr
*) &hdr_tmpl
->header
.cfg_shdr
;
12414 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12415 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12416 if (rc
!= MBX_TIMEOUT
)
12417 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12418 if (shdr_status
|| shdr_add_status
|| rc
) {
12419 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12420 "2514 POST_RPI_HDR mailbox failed with "
12421 "status x%x add_status x%x, mbx status x%x\n",
12422 shdr_status
, shdr_add_status
, rc
);
12429 * lpfc_sli4_alloc_rpi - Get an available rpi in the device's range
12430 * @phba: pointer to lpfc hba data structure.
12432 * This routine is invoked to post rpi header templates to the
12433 * HBA consistent with the SLI-4 interface spec. This routine
12434 * posts a SLI4_PAGE_SIZE memory region to the port to hold up to
12435 * SLI4_PAGE_SIZE modulo 64 rpi context headers.
12438 * A nonzero rpi defined as rpi_base <= rpi < max_rpi if successful
12439 * LPFC_RPI_ALLOC_ERROR if no rpis are available.
12442 lpfc_sli4_alloc_rpi(struct lpfc_hba
*phba
)
12445 uint16_t max_rpi
, rpi_base
, rpi_limit
;
12446 uint16_t rpi_remaining
;
12447 struct lpfc_rpi_hdr
*rpi_hdr
;
12449 max_rpi
= phba
->sli4_hba
.max_cfg_param
.max_rpi
;
12450 rpi_base
= phba
->sli4_hba
.max_cfg_param
.rpi_base
;
12451 rpi_limit
= phba
->sli4_hba
.next_rpi
;
12454 * The valid rpi range is not guaranteed to be zero-based. Start
12455 * the search at the rpi_base as reported by the port.
12457 spin_lock_irq(&phba
->hbalock
);
12458 rpi
= find_next_zero_bit(phba
->sli4_hba
.rpi_bmask
, rpi_limit
, rpi_base
);
12459 if (rpi
>= rpi_limit
|| rpi
< rpi_base
)
12460 rpi
= LPFC_RPI_ALLOC_ERROR
;
12462 set_bit(rpi
, phba
->sli4_hba
.rpi_bmask
);
12463 phba
->sli4_hba
.max_cfg_param
.rpi_used
++;
12464 phba
->sli4_hba
.rpi_count
++;
12468 * Don't try to allocate more rpi header regions if the device limit
12469 * on available rpis max has been exhausted.
12471 if ((rpi
== LPFC_RPI_ALLOC_ERROR
) &&
12472 (phba
->sli4_hba
.rpi_count
>= max_rpi
)) {
12473 spin_unlock_irq(&phba
->hbalock
);
12478 * If the driver is running low on rpi resources, allocate another
12479 * page now. Note that the next_rpi value is used because
12480 * it represents how many are actually in use whereas max_rpi notes
12481 * how many are supported max by the device.
12483 rpi_remaining
= phba
->sli4_hba
.next_rpi
- rpi_base
-
12484 phba
->sli4_hba
.rpi_count
;
12485 spin_unlock_irq(&phba
->hbalock
);
12486 if (rpi_remaining
< LPFC_RPI_LOW_WATER_MARK
) {
12487 rpi_hdr
= lpfc_sli4_create_rpi_hdr(phba
);
12489 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12490 "2002 Error Could not grow rpi "
12493 lpfc_sli4_post_rpi_hdr(phba
, rpi_hdr
);
12501 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12502 * @phba: pointer to lpfc hba data structure.
12504 * This routine is invoked to release an rpi to the pool of
12505 * available rpis maintained by the driver.
12508 __lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
12510 if (test_and_clear_bit(rpi
, phba
->sli4_hba
.rpi_bmask
)) {
12511 phba
->sli4_hba
.rpi_count
--;
12512 phba
->sli4_hba
.max_cfg_param
.rpi_used
--;
12517 * lpfc_sli4_free_rpi - Release an rpi for reuse.
12518 * @phba: pointer to lpfc hba data structure.
12520 * This routine is invoked to release an rpi to the pool of
12521 * available rpis maintained by the driver.
12524 lpfc_sli4_free_rpi(struct lpfc_hba
*phba
, int rpi
)
12526 spin_lock_irq(&phba
->hbalock
);
12527 __lpfc_sli4_free_rpi(phba
, rpi
);
12528 spin_unlock_irq(&phba
->hbalock
);
12532 * lpfc_sli4_remove_rpis - Remove the rpi bitmask region
12533 * @phba: pointer to lpfc hba data structure.
12535 * This routine is invoked to remove the memory region that
12536 * provided rpi via a bitmask.
12539 lpfc_sli4_remove_rpis(struct lpfc_hba
*phba
)
12541 kfree(phba
->sli4_hba
.rpi_bmask
);
12545 * lpfc_sli4_resume_rpi - Remove the rpi bitmask region
12546 * @phba: pointer to lpfc hba data structure.
12548 * This routine is invoked to remove the memory region that
12549 * provided rpi via a bitmask.
12552 lpfc_sli4_resume_rpi(struct lpfc_nodelist
*ndlp
)
12554 LPFC_MBOXQ_t
*mboxq
;
12555 struct lpfc_hba
*phba
= ndlp
->phba
;
12558 /* The port is notified of the header region via a mailbox command. */
12559 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12563 /* Post all rpi memory regions to the port. */
12564 lpfc_resume_rpi(mboxq
, ndlp
);
12565 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12566 if (rc
== MBX_NOT_FINISHED
) {
12567 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
12568 "2010 Resume RPI Mailbox failed "
12569 "status %d, mbxStatus x%x\n", rc
,
12570 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12571 mempool_free(mboxq
, phba
->mbox_mem_pool
);
12578 * lpfc_sli4_init_vpi - Initialize a vpi with the port
12579 * @vport: Pointer to the vport for which the vpi is being initialized
12581 * This routine is invoked to activate a vpi with the port.
12585 * -Evalue otherwise
12588 lpfc_sli4_init_vpi(struct lpfc_vport
*vport
)
12590 LPFC_MBOXQ_t
*mboxq
;
12592 int retval
= MBX_SUCCESS
;
12594 struct lpfc_hba
*phba
= vport
->phba
;
12595 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12598 lpfc_init_vpi(phba
, mboxq
, vport
->vpi
);
12599 mbox_tmo
= lpfc_mbox_tmo_val(phba
, MBX_INIT_VPI
);
12600 rc
= lpfc_sli_issue_mbox_wait(phba
, mboxq
, mbox_tmo
);
12601 if (rc
!= MBX_SUCCESS
) {
12602 lpfc_printf_vlog(vport
, KERN_ERR
, LOG_SLI
,
12603 "2022 INIT VPI Mailbox failed "
12604 "status %d, mbxStatus x%x\n", rc
,
12605 bf_get(lpfc_mqe_status
, &mboxq
->u
.mqe
));
12608 if (rc
!= MBX_TIMEOUT
)
12609 mempool_free(mboxq
, vport
->phba
->mbox_mem_pool
);
12615 * lpfc_mbx_cmpl_add_fcf_record - add fcf mbox completion handler.
12616 * @phba: pointer to lpfc hba data structure.
12617 * @mboxq: Pointer to mailbox object.
12619 * This routine is invoked to manually add a single FCF record. The caller
12620 * must pass a completely initialized FCF_Record. This routine takes
12621 * care of the nonembedded mailbox operations.
12624 lpfc_mbx_cmpl_add_fcf_record(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mboxq
)
12627 union lpfc_sli4_cfg_shdr
*shdr
;
12628 uint32_t shdr_status
, shdr_add_status
;
12630 virt_addr
= mboxq
->sge_array
->addr
[0];
12631 /* The IOCTL status is embedded in the mailbox subheader. */
12632 shdr
= (union lpfc_sli4_cfg_shdr
*) virt_addr
;
12633 shdr_status
= bf_get(lpfc_mbox_hdr_status
, &shdr
->response
);
12634 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
, &shdr
->response
);
12636 if ((shdr_status
|| shdr_add_status
) &&
12637 (shdr_status
!= STATUS_FCF_IN_USE
))
12638 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12639 "2558 ADD_FCF_RECORD mailbox failed with "
12640 "status x%x add_status x%x\n",
12641 shdr_status
, shdr_add_status
);
12643 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12647 * lpfc_sli4_add_fcf_record - Manually add an FCF Record.
12648 * @phba: pointer to lpfc hba data structure.
12649 * @fcf_record: pointer to the initialized fcf record to add.
12651 * This routine is invoked to manually add a single FCF record. The caller
12652 * must pass a completely initialized FCF_Record. This routine takes
12653 * care of the nonembedded mailbox operations.
12656 lpfc_sli4_add_fcf_record(struct lpfc_hba
*phba
, struct fcf_record
*fcf_record
)
12659 LPFC_MBOXQ_t
*mboxq
;
12662 dma_addr_t phys_addr
;
12663 struct lpfc_mbx_sge sge
;
12664 uint32_t alloc_len
, req_len
;
12667 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12669 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12670 "2009 Failed to allocate mbox for ADD_FCF cmd\n");
12674 req_len
= sizeof(struct fcf_record
) + sizeof(union lpfc_sli4_cfg_shdr
) +
12677 /* Allocate DMA memory and set up the non-embedded mailbox command */
12678 alloc_len
= lpfc_sli4_config(phba
, mboxq
, LPFC_MBOX_SUBSYSTEM_FCOE
,
12679 LPFC_MBOX_OPCODE_FCOE_ADD_FCF
,
12680 req_len
, LPFC_SLI4_MBX_NEMBED
);
12681 if (alloc_len
< req_len
) {
12682 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12683 "2523 Allocated DMA memory size (x%x) is "
12684 "less than the requested DMA memory "
12685 "size (x%x)\n", alloc_len
, req_len
);
12686 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12691 * Get the first SGE entry from the non-embedded DMA memory. This
12692 * routine only uses a single SGE.
12694 lpfc_sli4_mbx_sge_get(mboxq
, 0, &sge
);
12695 phys_addr
= getPaddr(sge
.pa_hi
, sge
.pa_lo
);
12696 virt_addr
= mboxq
->sge_array
->addr
[0];
12698 * Configure the FCF record for FCFI 0. This is the driver's
12699 * hardcoded default and gets used in nonFIP mode.
12701 fcfindex
= bf_get(lpfc_fcf_record_fcf_index
, fcf_record
);
12702 bytep
= virt_addr
+ sizeof(union lpfc_sli4_cfg_shdr
);
12703 lpfc_sli_pcimem_bcopy(&fcfindex
, bytep
, sizeof(uint32_t));
12706 * Copy the fcf_index and the FCF Record Data. The data starts after
12707 * the FCoE header plus word10. The data copy needs to be endian
12710 bytep
+= sizeof(uint32_t);
12711 lpfc_sli_pcimem_bcopy(fcf_record
, bytep
, sizeof(struct fcf_record
));
12712 mboxq
->vport
= phba
->pport
;
12713 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_add_fcf_record
;
12714 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12715 if (rc
== MBX_NOT_FINISHED
) {
12716 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12717 "2515 ADD_FCF_RECORD mailbox failed with "
12718 "status 0x%x\n", rc
);
12719 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12728 * lpfc_sli4_build_dflt_fcf_record - Build the driver's default FCF Record.
12729 * @phba: pointer to lpfc hba data structure.
12730 * @fcf_record: pointer to the fcf record to write the default data.
12731 * @fcf_index: FCF table entry index.
12733 * This routine is invoked to build the driver's default FCF record. The
12734 * values used are hardcoded. This routine handles memory initialization.
12738 lpfc_sli4_build_dflt_fcf_record(struct lpfc_hba
*phba
,
12739 struct fcf_record
*fcf_record
,
12740 uint16_t fcf_index
)
12742 memset(fcf_record
, 0, sizeof(struct fcf_record
));
12743 fcf_record
->max_rcv_size
= LPFC_FCOE_MAX_RCV_SIZE
;
12744 fcf_record
->fka_adv_period
= LPFC_FCOE_FKA_ADV_PER
;
12745 fcf_record
->fip_priority
= LPFC_FCOE_FIP_PRIORITY
;
12746 bf_set(lpfc_fcf_record_mac_0
, fcf_record
, phba
->fc_map
[0]);
12747 bf_set(lpfc_fcf_record_mac_1
, fcf_record
, phba
->fc_map
[1]);
12748 bf_set(lpfc_fcf_record_mac_2
, fcf_record
, phba
->fc_map
[2]);
12749 bf_set(lpfc_fcf_record_mac_3
, fcf_record
, LPFC_FCOE_FCF_MAC3
);
12750 bf_set(lpfc_fcf_record_mac_4
, fcf_record
, LPFC_FCOE_FCF_MAC4
);
12751 bf_set(lpfc_fcf_record_mac_5
, fcf_record
, LPFC_FCOE_FCF_MAC5
);
12752 bf_set(lpfc_fcf_record_fc_map_0
, fcf_record
, phba
->fc_map
[0]);
12753 bf_set(lpfc_fcf_record_fc_map_1
, fcf_record
, phba
->fc_map
[1]);
12754 bf_set(lpfc_fcf_record_fc_map_2
, fcf_record
, phba
->fc_map
[2]);
12755 bf_set(lpfc_fcf_record_fcf_valid
, fcf_record
, 1);
12756 bf_set(lpfc_fcf_record_fcf_avail
, fcf_record
, 1);
12757 bf_set(lpfc_fcf_record_fcf_index
, fcf_record
, fcf_index
);
12758 bf_set(lpfc_fcf_record_mac_addr_prov
, fcf_record
,
12759 LPFC_FCF_FPMA
| LPFC_FCF_SPMA
);
12760 /* Set the VLAN bit map */
12761 if (phba
->valid_vlan
) {
12762 fcf_record
->vlan_bitmap
[phba
->vlan_id
/ 8]
12763 = 1 << (phba
->vlan_id
% 8);
12768 * lpfc_sli4_fcf_scan_read_fcf_rec - Read hba fcf record for fcf scan.
12769 * @phba: pointer to lpfc hba data structure.
12770 * @fcf_index: FCF table entry offset.
12772 * This routine is invoked to scan the entire FCF table by reading FCF
12773 * record and processing it one at a time starting from the @fcf_index
12774 * for initial FCF discovery or fast FCF failover rediscovery.
12776 * Return 0 if the mailbox command is submitted sucessfully, none 0
12780 lpfc_sli4_fcf_scan_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12783 LPFC_MBOXQ_t
*mboxq
;
12785 phba
->fcoe_eventtag_at_fcf_scan
= phba
->fcoe_eventtag
;
12786 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12788 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
12789 "2000 Failed to allocate mbox for "
12792 goto fail_fcf_scan
;
12794 /* Construct the read FCF record mailbox command */
12795 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12798 goto fail_fcf_scan
;
12800 /* Issue the mailbox command asynchronously */
12801 mboxq
->vport
= phba
->pport
;
12802 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_scan_read_fcf_rec
;
12804 spin_lock_irq(&phba
->hbalock
);
12805 phba
->hba_flag
|= FCF_TS_INPROG
;
12806 spin_unlock_irq(&phba
->hbalock
);
12808 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12809 if (rc
== MBX_NOT_FINISHED
)
12812 /* Reset eligible FCF count for new scan */
12813 if (fcf_index
== LPFC_FCOE_FCF_GET_FIRST
)
12814 phba
->fcf
.eligible_fcf_cnt
= 0;
12820 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12821 /* FCF scan failed, clear FCF_TS_INPROG flag */
12822 spin_lock_irq(&phba
->hbalock
);
12823 phba
->hba_flag
&= ~FCF_TS_INPROG
;
12824 spin_unlock_irq(&phba
->hbalock
);
12830 * lpfc_sli4_fcf_rr_read_fcf_rec - Read hba fcf record for roundrobin fcf.
12831 * @phba: pointer to lpfc hba data structure.
12832 * @fcf_index: FCF table entry offset.
12834 * This routine is invoked to read an FCF record indicated by @fcf_index
12835 * and to use it for FLOGI roundrobin FCF failover.
12837 * Return 0 if the mailbox command is submitted sucessfully, none 0
12841 lpfc_sli4_fcf_rr_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12844 LPFC_MBOXQ_t
*mboxq
;
12846 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12848 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12849 "2763 Failed to allocate mbox for "
12852 goto fail_fcf_read
;
12854 /* Construct the read FCF record mailbox command */
12855 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12858 goto fail_fcf_read
;
12860 /* Issue the mailbox command asynchronously */
12861 mboxq
->vport
= phba
->pport
;
12862 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_fcf_rr_read_fcf_rec
;
12863 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12864 if (rc
== MBX_NOT_FINISHED
)
12870 if (error
&& mboxq
)
12871 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12876 * lpfc_sli4_read_fcf_rec - Read hba fcf record for update eligible fcf bmask.
12877 * @phba: pointer to lpfc hba data structure.
12878 * @fcf_index: FCF table entry offset.
12880 * This routine is invoked to read an FCF record indicated by @fcf_index to
12881 * determine whether it's eligible for FLOGI roundrobin failover list.
12883 * Return 0 if the mailbox command is submitted sucessfully, none 0
12887 lpfc_sli4_read_fcf_rec(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12890 LPFC_MBOXQ_t
*mboxq
;
12892 mboxq
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
12894 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
| LOG_INIT
,
12895 "2758 Failed to allocate mbox for "
12898 goto fail_fcf_read
;
12900 /* Construct the read FCF record mailbox command */
12901 rc
= lpfc_sli4_mbx_read_fcf_rec(phba
, mboxq
, fcf_index
);
12904 goto fail_fcf_read
;
12906 /* Issue the mailbox command asynchronously */
12907 mboxq
->vport
= phba
->pport
;
12908 mboxq
->mbox_cmpl
= lpfc_mbx_cmpl_read_fcf_rec
;
12909 rc
= lpfc_sli_issue_mbox(phba
, mboxq
, MBX_NOWAIT
);
12910 if (rc
== MBX_NOT_FINISHED
)
12916 if (error
&& mboxq
)
12917 lpfc_sli4_mbox_cmd_free(phba
, mboxq
);
12922 * lpfc_sli4_fcf_rr_next_index_get - Get next eligible fcf record index
12923 * @phba: pointer to lpfc hba data structure.
12925 * This routine is to get the next eligible FCF record index in a round
12926 * robin fashion. If the next eligible FCF record index equals to the
12927 * initial roundrobin FCF record index, LPFC_FCOE_FCF_NEXT_NONE (0xFFFF)
12928 * shall be returned, otherwise, the next eligible FCF record's index
12929 * shall be returned.
12932 lpfc_sli4_fcf_rr_next_index_get(struct lpfc_hba
*phba
)
12934 uint16_t next_fcf_index
;
12936 /* Search start from next bit of currently registered FCF index */
12937 next_fcf_index
= (phba
->fcf
.current_rec
.fcf_indx
+ 1) %
12938 LPFC_SLI4_FCF_TBL_INDX_MAX
;
12939 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12940 LPFC_SLI4_FCF_TBL_INDX_MAX
,
12943 /* Wrap around condition on phba->fcf.fcf_rr_bmask */
12944 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
)
12945 next_fcf_index
= find_next_bit(phba
->fcf
.fcf_rr_bmask
,
12946 LPFC_SLI4_FCF_TBL_INDX_MAX
, 0);
12948 /* Check roundrobin failover list empty condition */
12949 if (next_fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12950 lpfc_printf_log(phba
, KERN_WARNING
, LOG_FIP
,
12951 "2844 No roundrobin failover FCF available\n");
12952 return LPFC_FCOE_FCF_NEXT_NONE
;
12955 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12956 "2845 Get next roundrobin failover FCF (x%x)\n",
12959 return next_fcf_index
;
12963 * lpfc_sli4_fcf_rr_index_set - Set bmask with eligible fcf record index
12964 * @phba: pointer to lpfc hba data structure.
12966 * This routine sets the FCF record index in to the eligible bmask for
12967 * roundrobin failover search. It checks to make sure that the index
12968 * does not go beyond the range of the driver allocated bmask dimension
12969 * before setting the bit.
12971 * Returns 0 if the index bit successfully set, otherwise, it returns
12975 lpfc_sli4_fcf_rr_index_set(struct lpfc_hba
*phba
, uint16_t fcf_index
)
12977 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
12978 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
12979 "2610 FCF (x%x) reached driver's book "
12980 "keeping dimension:x%x\n",
12981 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
12984 /* Set the eligible FCF record index bmask */
12985 set_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
12987 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
12988 "2790 Set FCF (x%x) to roundrobin FCF failover "
12989 "bmask\n", fcf_index
);
12995 * lpfc_sli4_fcf_rr_index_clear - Clear bmask from eligible fcf record index
12996 * @phba: pointer to lpfc hba data structure.
12998 * This routine clears the FCF record index from the eligible bmask for
12999 * roundrobin failover search. It checks to make sure that the index
13000 * does not go beyond the range of the driver allocated bmask dimension
13001 * before clearing the bit.
13004 lpfc_sli4_fcf_rr_index_clear(struct lpfc_hba
*phba
, uint16_t fcf_index
)
13006 if (fcf_index
>= LPFC_SLI4_FCF_TBL_INDX_MAX
) {
13007 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
13008 "2762 FCF (x%x) reached driver's book "
13009 "keeping dimension:x%x\n",
13010 fcf_index
, LPFC_SLI4_FCF_TBL_INDX_MAX
);
13013 /* Clear the eligible FCF record index bmask */
13014 clear_bit(fcf_index
, phba
->fcf
.fcf_rr_bmask
);
13016 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
13017 "2791 Clear FCF (x%x) from roundrobin failover "
13018 "bmask\n", fcf_index
);
13022 * lpfc_mbx_cmpl_redisc_fcf_table - completion routine for rediscover FCF table
13023 * @phba: pointer to lpfc hba data structure.
13025 * This routine is the completion routine for the rediscover FCF table mailbox
13026 * command. If the mailbox command returned failure, it will try to stop the
13027 * FCF rediscover wait timer.
13030 lpfc_mbx_cmpl_redisc_fcf_table(struct lpfc_hba
*phba
, LPFC_MBOXQ_t
*mbox
)
13032 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
13033 uint32_t shdr_status
, shdr_add_status
;
13035 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
13037 shdr_status
= bf_get(lpfc_mbox_hdr_status
,
13038 &redisc_fcf
->header
.cfg_shdr
.response
);
13039 shdr_add_status
= bf_get(lpfc_mbox_hdr_add_status
,
13040 &redisc_fcf
->header
.cfg_shdr
.response
);
13041 if (shdr_status
|| shdr_add_status
) {
13042 lpfc_printf_log(phba
, KERN_ERR
, LOG_FIP
,
13043 "2746 Requesting for FCF rediscovery failed "
13044 "status x%x add_status x%x\n",
13045 shdr_status
, shdr_add_status
);
13046 if (phba
->fcf
.fcf_flag
& FCF_ACVL_DISC
) {
13047 spin_lock_irq(&phba
->hbalock
);
13048 phba
->fcf
.fcf_flag
&= ~FCF_ACVL_DISC
;
13049 spin_unlock_irq(&phba
->hbalock
);
13051 * CVL event triggered FCF rediscover request failed,
13052 * last resort to re-try current registered FCF entry.
13054 lpfc_retry_pport_discovery(phba
);
13056 spin_lock_irq(&phba
->hbalock
);
13057 phba
->fcf
.fcf_flag
&= ~FCF_DEAD_DISC
;
13058 spin_unlock_irq(&phba
->hbalock
);
13060 * DEAD FCF event triggered FCF rediscover request
13061 * failed, last resort to fail over as a link down
13062 * to FCF registration.
13064 lpfc_sli4_fcf_dead_failthrough(phba
);
13067 lpfc_printf_log(phba
, KERN_INFO
, LOG_FIP
,
13068 "2775 Start FCF rediscover quiescent timer\n");
13070 * Start FCF rediscovery wait timer for pending FCF
13071 * before rescan FCF record table.
13073 lpfc_fcf_redisc_wait_start_timer(phba
);
13076 mempool_free(mbox
, phba
->mbox_mem_pool
);
13080 * lpfc_sli4_redisc_fcf_table - Request to rediscover entire FCF table by port.
13081 * @phba: pointer to lpfc hba data structure.
13083 * This routine is invoked to request for rediscovery of the entire FCF table
13087 lpfc_sli4_redisc_fcf_table(struct lpfc_hba
*phba
)
13089 LPFC_MBOXQ_t
*mbox
;
13090 struct lpfc_mbx_redisc_fcf_tbl
*redisc_fcf
;
13093 /* Cancel retry delay timers to all vports before FCF rediscover */
13094 lpfc_cancel_all_vport_retry_delay_timer(phba
);
13096 mbox
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13098 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13099 "2745 Failed to allocate mbox for "
13100 "requesting FCF rediscover.\n");
13104 length
= (sizeof(struct lpfc_mbx_redisc_fcf_tbl
) -
13105 sizeof(struct lpfc_sli4_cfg_mhdr
));
13106 lpfc_sli4_config(phba
, mbox
, LPFC_MBOX_SUBSYSTEM_FCOE
,
13107 LPFC_MBOX_OPCODE_FCOE_REDISCOVER_FCF
,
13108 length
, LPFC_SLI4_MBX_EMBED
);
13110 redisc_fcf
= &mbox
->u
.mqe
.un
.redisc_fcf_tbl
;
13111 /* Set count to 0 for invalidating the entire FCF database */
13112 bf_set(lpfc_mbx_redisc_fcf_count
, redisc_fcf
, 0);
13114 /* Issue the mailbox command asynchronously */
13115 mbox
->vport
= phba
->pport
;
13116 mbox
->mbox_cmpl
= lpfc_mbx_cmpl_redisc_fcf_table
;
13117 rc
= lpfc_sli_issue_mbox(phba
, mbox
, MBX_NOWAIT
);
13119 if (rc
== MBX_NOT_FINISHED
) {
13120 mempool_free(mbox
, phba
->mbox_mem_pool
);
13127 * lpfc_sli4_fcf_dead_failthrough - Failthrough routine to fcf dead event
13128 * @phba: pointer to lpfc hba data structure.
13130 * This function is the failover routine as a last resort to the FCF DEAD
13131 * event when driver failed to perform fast FCF failover.
13134 lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba
*phba
)
13136 uint32_t link_state
;
13139 * Last resort as FCF DEAD event failover will treat this as
13140 * a link down, but save the link state because we don't want
13141 * it to be changed to Link Down unless it is already down.
13143 link_state
= phba
->link_state
;
13144 lpfc_linkdown(phba
);
13145 phba
->link_state
= link_state
;
13147 /* Unregister FCF if no devices connected to it */
13148 lpfc_unregister_unused_fcf(phba
);
13152 * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
13153 * @phba: pointer to lpfc hba data structure.
13155 * This function read region 23 and parse TLV for port status to
13156 * decide if the user disaled the port. If the TLV indicates the
13157 * port is disabled, the hba_flag is set accordingly.
13160 lpfc_sli_read_link_ste(struct lpfc_hba
*phba
)
13162 LPFC_MBOXQ_t
*pmb
= NULL
;
13164 uint8_t *rgn23_data
= NULL
;
13165 uint32_t offset
= 0, data_size
, sub_tlv_len
, tlv_offset
;
13168 pmb
= mempool_alloc(phba
->mbox_mem_pool
, GFP_KERNEL
);
13170 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13171 "2600 lpfc_sli_read_serdes_param failed to"
13172 " allocate mailbox memory\n");
13177 /* Get adapter Region 23 data */
13178 rgn23_data
= kzalloc(DMP_RGN23_SIZE
, GFP_KERNEL
);
13183 lpfc_dump_mem(phba
, pmb
, offset
, DMP_REGION_23
);
13184 rc
= lpfc_sli_issue_mbox(phba
, pmb
, MBX_POLL
);
13186 if (rc
!= MBX_SUCCESS
) {
13187 lpfc_printf_log(phba
, KERN_INFO
, LOG_INIT
,
13188 "2601 lpfc_sli_read_link_ste failed to"
13189 " read config region 23 rc 0x%x Status 0x%x\n",
13190 rc
, mb
->mbxStatus
);
13191 mb
->un
.varDmp
.word_cnt
= 0;
13194 * dump mem may return a zero when finished or we got a
13195 * mailbox error, either way we are done.
13197 if (mb
->un
.varDmp
.word_cnt
== 0)
13199 if (mb
->un
.varDmp
.word_cnt
> DMP_RGN23_SIZE
- offset
)
13200 mb
->un
.varDmp
.word_cnt
= DMP_RGN23_SIZE
- offset
;
13202 lpfc_sli_pcimem_bcopy(((uint8_t *)mb
) + DMP_RSP_OFFSET
,
13203 rgn23_data
+ offset
,
13204 mb
->un
.varDmp
.word_cnt
);
13205 offset
+= mb
->un
.varDmp
.word_cnt
;
13206 } while (mb
->un
.varDmp
.word_cnt
&& offset
< DMP_RGN23_SIZE
);
13208 data_size
= offset
;
13214 /* Check the region signature first */
13215 if (memcmp(&rgn23_data
[offset
], LPFC_REGION23_SIGNATURE
, 4)) {
13216 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13217 "2619 Config region 23 has bad signature\n");
13222 /* Check the data structure version */
13223 if (rgn23_data
[offset
] != LPFC_REGION23_VERSION
) {
13224 lpfc_printf_log(phba
, KERN_ERR
, LOG_INIT
,
13225 "2620 Config region 23 has bad version\n");
13230 /* Parse TLV entries in the region */
13231 while (offset
< data_size
) {
13232 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
)
13235 * If the TLV is not driver specific TLV or driver id is
13236 * not linux driver id, skip the record.
13238 if ((rgn23_data
[offset
] != DRIVER_SPECIFIC_TYPE
) ||
13239 (rgn23_data
[offset
+ 2] != LINUX_DRIVER_ID
) ||
13240 (rgn23_data
[offset
+ 3] != 0)) {
13241 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13245 /* Driver found a driver specific TLV in the config region */
13246 sub_tlv_len
= rgn23_data
[offset
+ 1] * 4;
13251 * Search for configured port state sub-TLV.
13253 while ((offset
< data_size
) &&
13254 (tlv_offset
< sub_tlv_len
)) {
13255 if (rgn23_data
[offset
] == LPFC_REGION23_LAST_REC
) {
13260 if (rgn23_data
[offset
] != PORT_STE_TYPE
) {
13261 offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13262 tlv_offset
+= rgn23_data
[offset
+ 1] * 4 + 4;
13266 /* This HBA contains PORT_STE configured */
13267 if (!rgn23_data
[offset
+ 2])
13268 phba
->hba_flag
|= LINK_DISABLED
;
13275 mempool_free(pmb
, phba
->mbox_mem_pool
);
13281 * lpfc_cleanup_pending_mbox - Free up vport discovery mailbox commands.
13282 * @vport: pointer to vport data structure.
13284 * This function iterate through the mailboxq and clean up all REG_LOGIN
13285 * and REG_VPI mailbox commands associated with the vport. This function
13286 * is called when driver want to restart discovery of the vport due to
13287 * a Clear Virtual Link event.
13290 lpfc_cleanup_pending_mbox(struct lpfc_vport
*vport
)
13292 struct lpfc_hba
*phba
= vport
->phba
;
13293 LPFC_MBOXQ_t
*mb
, *nextmb
;
13294 struct lpfc_dmabuf
*mp
;
13295 struct lpfc_nodelist
*ndlp
;
13296 struct lpfc_nodelist
*act_mbx_ndlp
= NULL
;
13297 struct Scsi_Host
*shost
= lpfc_shost_from_vport(vport
);
13298 LIST_HEAD(mbox_cmd_list
);
13299 uint8_t restart_loop
;
13301 /* Clean up internally queued mailbox commands with the vport */
13302 spin_lock_irq(&phba
->hbalock
);
13303 list_for_each_entry_safe(mb
, nextmb
, &phba
->sli
.mboxq
, list
) {
13304 if (mb
->vport
!= vport
)
13307 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
13308 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
13311 list_del(&mb
->list
);
13312 list_add_tail(&mb
->list
, &mbox_cmd_list
);
13314 /* Clean up active mailbox command with the vport */
13315 mb
= phba
->sli
.mbox_active
;
13316 if (mb
&& (mb
->vport
== vport
)) {
13317 if ((mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) ||
13318 (mb
->u
.mb
.mbxCommand
== MBX_REG_VPI
))
13319 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13320 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13321 act_mbx_ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
13322 /* Put reference count for delayed processing */
13323 act_mbx_ndlp
= lpfc_nlp_get(act_mbx_ndlp
);
13324 /* Unregister the RPI when mailbox complete */
13325 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
13328 /* Cleanup any mailbox completions which are not yet processed */
13331 list_for_each_entry(mb
, &phba
->sli
.mboxq_cmpl
, list
) {
13333 * If this mailox is already processed or it is
13334 * for another vport ignore it.
13336 if ((mb
->vport
!= vport
) ||
13337 (mb
->mbox_flag
& LPFC_MBX_IMED_UNREG
))
13340 if ((mb
->u
.mb
.mbxCommand
!= MBX_REG_LOGIN64
) &&
13341 (mb
->u
.mb
.mbxCommand
!= MBX_REG_VPI
))
13344 mb
->mbox_cmpl
= lpfc_sli_def_mbox_cmpl
;
13345 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13346 ndlp
= (struct lpfc_nodelist
*)mb
->context2
;
13347 /* Unregister the RPI when mailbox complete */
13348 mb
->mbox_flag
|= LPFC_MBX_IMED_UNREG
;
13350 spin_unlock_irq(&phba
->hbalock
);
13351 spin_lock(shost
->host_lock
);
13352 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13353 spin_unlock(shost
->host_lock
);
13354 spin_lock_irq(&phba
->hbalock
);
13358 } while (restart_loop
);
13360 spin_unlock_irq(&phba
->hbalock
);
13362 /* Release the cleaned-up mailbox commands */
13363 while (!list_empty(&mbox_cmd_list
)) {
13364 list_remove_head(&mbox_cmd_list
, mb
, LPFC_MBOXQ_t
, list
);
13365 if (mb
->u
.mb
.mbxCommand
== MBX_REG_LOGIN64
) {
13366 mp
= (struct lpfc_dmabuf
*) (mb
->context1
);
13368 __lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
13371 ndlp
= (struct lpfc_nodelist
*) mb
->context2
;
13372 mb
->context2
= NULL
;
13374 spin_lock(shost
->host_lock
);
13375 ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13376 spin_unlock(shost
->host_lock
);
13377 lpfc_nlp_put(ndlp
);
13380 mempool_free(mb
, phba
->mbox_mem_pool
);
13383 /* Release the ndlp with the cleaned-up active mailbox command */
13384 if (act_mbx_ndlp
) {
13385 spin_lock(shost
->host_lock
);
13386 act_mbx_ndlp
->nlp_flag
&= ~NLP_IGNR_REG_CMPL
;
13387 spin_unlock(shost
->host_lock
);
13388 lpfc_nlp_put(act_mbx_ndlp
);
13393 * lpfc_drain_txq - Drain the txq
13394 * @phba: Pointer to HBA context object.
13396 * This function attempt to submit IOCBs on the txq
13397 * to the adapter. For SLI4 adapters, the txq contains
13398 * ELS IOCBs that have been deferred because the there
13399 * are no SGLs. This congestion can occur with large
13400 * vport counts during node discovery.
13404 lpfc_drain_txq(struct lpfc_hba
*phba
)
13406 LIST_HEAD(completions
);
13407 struct lpfc_sli_ring
*pring
= &phba
->sli
.ring
[LPFC_ELS_RING
];
13408 struct lpfc_iocbq
*piocbq
= 0;
13409 unsigned long iflags
= 0;
13410 char *fail_msg
= NULL
;
13411 struct lpfc_sglq
*sglq
;
13412 union lpfc_wqe wqe
;
13414 spin_lock_irqsave(&phba
->hbalock
, iflags
);
13415 if (pring
->txq_cnt
> pring
->txq_max
)
13416 pring
->txq_max
= pring
->txq_cnt
;
13418 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13420 while (pring
->txq_cnt
) {
13421 spin_lock_irqsave(&phba
->hbalock
, iflags
);
13423 piocbq
= lpfc_sli_ringtx_get(phba
, pring
);
13424 sglq
= __lpfc_sli_get_sglq(phba
, piocbq
);
13426 __lpfc_sli_ringtx_put(phba
, pring
, piocbq
);
13427 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13431 /* The txq_cnt out of sync. This should
13434 sglq
= __lpfc_clear_active_sglq(phba
,
13435 sglq
->sli4_xritag
);
13436 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13437 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13438 "2823 txq empty and txq_cnt is %d\n ",
13444 /* The xri and iocb resources secured,
13445 * attempt to issue request
13447 piocbq
->sli4_xritag
= sglq
->sli4_xritag
;
13448 if (NO_XRI
== lpfc_sli4_bpl2sgl(phba
, piocbq
, sglq
))
13449 fail_msg
= "to convert bpl to sgl";
13450 else if (lpfc_sli4_iocb2wqe(phba
, piocbq
, &wqe
))
13451 fail_msg
= "to convert iocb to wqe";
13452 else if (lpfc_sli4_wq_put(phba
->sli4_hba
.els_wq
, &wqe
))
13453 fail_msg
= " - Wq is full";
13455 lpfc_sli_ringtxcmpl_put(phba
, pring
, piocbq
);
13458 /* Failed means we can't issue and need to cancel */
13459 lpfc_printf_log(phba
, KERN_ERR
, LOG_SLI
,
13460 "2822 IOCB failed %s iotag 0x%x "
13463 piocbq
->iotag
, piocbq
->sli4_xritag
);
13464 list_add_tail(&piocbq
->list
, &completions
);
13466 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
13469 /* Cancel all the IOCBs that cannot be issued */
13470 lpfc_sli_cancel_iocbs(phba
, &completions
, IOSTAT_LOCAL_REJECT
,
13471 IOERR_SLI_ABORTED
);
13473 return pring
->txq_cnt
;